CN1196325A - Method and apparatus for maintaining uniform mass flow of granular material out of container - Google Patents
Method and apparatus for maintaining uniform mass flow of granular material out of container Download PDFInfo
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- CN1196325A CN1196325A CN 98106458 CN98106458A CN1196325A CN 1196325 A CN1196325 A CN 1196325A CN 98106458 CN98106458 CN 98106458 CN 98106458 A CN98106458 A CN 98106458A CN 1196325 A CN1196325 A CN 1196325A
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Abstract
A method and apparatus for maintaining a substantially uniform mass flow of granular material out of a container. The apparatus includes a converging transition portion defining an input opening which converges to an output opening. The output opening has a transverse opening dimension (x). An elongated chimney portion is coupled to the converging transition portion at the output opening. The elongated chimney portion has a height dimension (y). The ratio of the transverse opening dimension (x) relative to the height dimension (y) is determined by an angle of repose of the granular material to maintain a substantially uniform mass flow of granular material.
Description
The application is the U.S. the 08/373rd, the improvement of No. 787 applications, the name of this U.S. Patent application is called " granular material is kept at a method and apparatus that is exposed to hopper in the rain ", propose January 17 nineteen ninety-five, present pending trial, this US Patent is another U.S. Patent application the 08/126th, 270 improvement, the name of this another U.S. Patent application is called " method and apparatus that distributes granular material in hopper ", propose on September 24th, 1993, present U.S. Patent number is 5,421,379, open June 6 nineteen ninety-five.
The present invention relates generally to the preservation of granular material such as animal feed, more particularly, relate to the logistics uniform method and the device of the granular material that keeps the outflow hopper.
Such as comprising in agricultural and the manufacturing industry, must preserve the granular material of larger amt comparatively speaking.For example, in agricultural, need preserve a large amount of feeds for animal husbandry usually.In above these industry, usually granular material to be packed into from an opening that is arranged in the hopper top, this hopper is used for keeping in these granular materials.The opening of the bottom by a funnel shaped part that is arranged in hopper is discharged this granular material from hopper before use then.
According to the character of the granular material that is saved, adopt this hopper to have all difficulties usually.For example, granular material has generally included multiple components, and various composition is in the separative tendency of when filling with substance in hopper.For example, the feed that is used for chicken includes the compact grained composition usually, can be in the hopper position intermediate to this composition of hopper when filling with substance, also comprises the composition that particle is thicker in the feed, at the wall to the close hopper of this composition meeting of hopper when filling with substance.Owing to can separate by this way hopper when filling with substance feed, the composition ratio when the composition ratio of feed can not be packed hopper into it when discharging hopper usually is identical.In animal husbandry was produced, the separation of this feed composition generally can cause capacity rating to descend.Therefore, must make the composition of the granular material in the hopper that distribution is uniformly arranged basically.
In addition, the granular material of the hopper of packing into may not can be allocated in the hopper equably, promptly may be in the highest region territory of hopper the altering a great deal of height of granular material.This not only makes the effective preservation capacity of hopper descend, and the zone that is not full of granular material in hopper converges the ponding branch, and these moisture can descend the grade of granular material in the various processes process that for example mould forms.Therefore, granular material is distributed substantially equably in hopper.
In addition, the granular material that is stored in rainfall in the hopper can partially absorb moisture the lower hopper shape of hopper.The generation of this phenomenon is normally converged in exit portion owing to the funnel shaped part of hopper, and rain stream will flow to exit portion along the sidewall of hopper.Equally, this condition can make the granular material degradation, also can stop up exit portion.Therefore, also need to make rain stream to leave the lower hopper shape part of hopper, so that in rainfall, keep the lower hopper shape of hopper partly to be under the condition of substantially dry.
Also have, when adopting traditional feeder hopper and screw feeder parts when lower hopper shape is partly located to discharge granular material from hopper, it is inhomogeneous that granular material can produce unloading, and can produce uneven logistics.Under the worst condition, this unloading condition can be created in the hopper, and more granular material is along an effluent feed box of hopper, and this makes the granular material that flows slowlyer concentrate along a higher sidewall.The skewness of this granular material in hopper can cause sleeve pipe partly to produce distortion or damage along lower part outlet, under opposite extreme situations, along the base plate of lower hopper shape part can be under the condition of the load inequality of granular material cracking or impaired.In addition, such unloading also can cause so-called granular material " arch camber " in hopper, promptly wherein among a small circle or the part granular material be discharged from, stay the arch bridge that granular material forms, time one is long, will in hopper, take place to fall or " charging decay (feed crash) ", further make the structure of hopper that potential problem takes place.
In order to distribute the granular material that enters hopper, the whole bag of tricks and device have been developed.As shown in Figure 1, one is commonly referred to the device of shedding device especially, has been used to distribute in silo grain.This sheds the top that device is usually located at silo, and comprises one by electric motor driven slide plate.When granular material was sent on this slide plate, granular material flowed along this slide plate, is dispensed on each position in the silo.
Though use and to shed device to distribute grain in silo be successful, this device of shedding has several shortcomings.For example, use electrical motor that slide plate is rotated and to have increased the cost of shedding device.In addition, use electrical motor to make the slide plate rotation can make the operation of slide plate be subject to the influence of motor fault and not too reliable.In addition, be difficult to usually determine whether the electrical motor that drives slide plate really fault has taken place and caused that slide plate does not rotate, because slide plate and electrical motor all are invisible usually.At last, this is shed device and generally only is used for distributing grain at silo, generally is not used in and distributes feed in feed bin.
In one embodiment, the present invention relates to a basic device uniformly of logistics that is used to keep flow out the granular material of hopper.This device comprises the transition portion of a convergent shape, and this defines an input port, and this input port converges at an outlet.The transverse opening of this outlet is of a size of (x).Transition portion with convergent shape cooperates elongated chimney-like part in the exit.The height of elongated chimney part is (y).The ratio of transverse opening size (x) and height dimension (y) is by the loll decision of granular material, so that make the logistics of granular material keep even substantially.
Therefore, an object of the present invention is to provide a kind of method and apparatus that distributes granular material in hopper, wherein the composition of granular material can distribute substantially equably.
Another object of the present invention provides a kind of method and apparatus that distributes granular material in hopper, wherein the level height basically identical of granular material in the hopper in the process that hopper is filled.
Another object of the present invention provides a kind of method and apparatus that distributes granular material in hopper, can distribute granular material by the momentum that absorbs the granular material that flows into.
Another relevant purpose of the present invention provides a kind of method and apparatus that distributes granular material in hopper, can reduce the quantity of mould, and this mould can form in the granular material in being stored in hopper.
Another relevant purpose of the present invention provides a kind of method and apparatus that distributes granular material in hopper, can increase the quantity of preserving granular material in the hopper effectively.
Another relevant purpose of the present invention provides a kind of method and apparatus that distributes granular material in hopper, and this method and apparatus is simple relatively and with low cost, can also distribute granular material reliably in hopper.
Another object of the present invention provides a kind of rainwater stream that makes and leaves the method and apparatus of funnel shaped part when rainfall.
Another object of the present invention provides a kind of method and apparatus that makes the granular material that flows out hopper keep even logistics, thereby the side dumping of eliminating granular material is carried, " arch camber " of granular material and potential hopper structural failure under this unloading condition.
The novel features that is considered to of the present invention will be stated especially in the claims.Structure of the present invention and method of operation with and other purpose and advantage, will be better understood by the description of being done with reference to the accompanying drawings, the identical similar part of symbology among the figure, wherein:
Fig. 1 is a partly cut-away, belong to the transparent view of hopper of the preservation granular material of prior art;
Fig. 2 is the transparent view of the hopper of a partly cut-away, and this hopper has a granular material distribution device according to technology of the present invention and preferred embodiment;
Fig. 3 be one as shown in Figure 2, be used for the transparent view of granular material distribution device according to technology of the present invention and preferred embodiment;
Fig. 4 be one that obtain along the 4-4 line among Fig. 3, shown the distribution granular material device side view of technology according to a preferred embodiment of the present invention;
Fig. 5 is the enlarged perspective of substrate part of the distribution granular material device of a technology according to a preferred embodiment of the present invention shown in Figure 3;
Fig. 6 be one that obtain along the 6-6 line among Fig. 4, shown the distribution granular material device side view of technology according to a preferred embodiment of the present invention;
Fig. 7 be one that obtain along the 7-7 line among Fig. 4, shown the distribution granular material device birds-eye view of technology according to a preferred embodiment of the present invention;
Fig. 8 (A)-(F) is the view of the substrate part of granular material distribution device as shown in Figure 4, illustrates granular material flowing along this substrate;
Fig. 9 is the transparent view of granular material distribution device according to another embodiment of the invention;
Figure 10 is the transparent view of granular material distribution device according to another embodiment of the invention;
Figure 11 is a transparent view that part is cut open, shown have according to technology of the present invention and preferred embodiment make rain circulation to the hopper of device;
Figure 12 be one shown in Figure 11 make the rain circulation to the enlarged perspective of device, this figure obtains along the line among Figure 11 12;
Figure 13 be shown in a Figure 11-12 make rain circulation to the viewgraph of cross-section of device, this figure obtains along the line 13-13 among Figure 12;
Figure 14 is the side cross section view of lower part outlet part of hopper of the preservation granular material of prior art;
Figure 15 is the cross section view that lower part outlet part as shown in figure 14 obtains along the line 15-15 among Figure 14;
Figure 16 is the amplification profile view that lower part outlet part as shown in figure 14 obtains along the line among Figure 14 16;
Figure 17 is an another kind of lower part outlet sectional side view partly of preserving the hopper of granular material in the prior art;
Figure 18 is the side parting face view of a hopper, has shown the mobile graphic that the lower part outlet as shown in Figure 14 and 17 partly obtains.
Figure 19 is that according to a preferred embodiment of the present invention the granular material that flows out hopper that makes keeps the sectional side view of the device of even logistics;
Figure 20 be as shown in figure 19, along the resulting logistics section-drawing of device uniformly that makes of the line 20-20 among Figure 19;
Figure 21 is that according to a preferred embodiment of the present invention the granular material that flows out hopper that makes keeps the sectional side view of the device of even logistics;
Figure 22 is the sectional side view of a hopper, has shown that the mobile graphic that is obtained is installed in the maintenance logistics shown in Figure 19 and 21 uniformly.
Below will only limit to illustrational character to the description of the preferred embodiments of the present invention.Therefore, the discussion of being done is not construed as limiting the scope of the present invention, application of the present invention and use of the present invention.
With reference to figure 2, the figure illustrates the device 10 that is used to distribute granular material.Device 10 can be used for distributing grain, feed or food or other to be used for agricultural or industrial loose packed material.This granular material can be but must not be made up of two or more compositions that these compositions may separative tendency when preserving.Shown device 10 and hopper 12 compounding practices, this hopper is used to preserve granular material.Hopper 12 is accepted from pay-off 14 granular material that comes of screw feeder or elephant trunk for example.At this, granular material enters the bottom (not having to show) of pay-off 14 and is sent to open end 16 places of hopper 12.It will be appreciated by those skilled in the art that the grain materials flow enters into hopper 12 from pay-off 14 a given momentum, because granular material promptly has speed that quality is arranged again.
Those skilled in the art will appreciate that hopper 12 can be one can be from Chore-Time or Brock, feed that Milford, Indiana etc. locate to obtain is preserved the storehouse.It should be understood, however, that the present invention can be used for the hopper of other type, also can be used to distribute the granular material of other type.At this, hopper 12 can be used to preserve the agricultural material, spent material, industrial material, chemical substance of other type and the granular material of other type in fact.In addition, though shown hopper is essentially cylindrical and has a cylindrical-conical upper cover part 18, in fact this hopper 12 also can be any other shape that is suitable for preserving granular material.Therefore, this hopper can be tetragonal, hexagonal, octagonal, can be any shape that other is fit to.
Do more fully to describe below with reference to Fig. 3-7 pair of device 10.Device 10 comprises a conical part 26, and this part has a top 28, and the grain materials flow from pay-off 14 can be accepted in this top.In addition, conical part 26 also has a bottom 30, and this bottom can send to the granular material that flows on the substrate part that will comprehensively describe below.Conical part 26 is used for and will concentrates from the granular material stream of pay-off 14 and with its guiding substrate part.
The external diameter of the upper end on top 28 is preferably about 21 inches, and the internal diameter of the lower end of bottom 30 preferably is about 8 inches.The height of conical part 26 preferably is about 12.5 inches.The wall on top 28 and the angle of vertical direction are about 40 °, and the wall of bottom 30 and vertical direction are into about 11 °.Meeting on one point with the bottom 30 of conical part 26 in the top 28 of conical part 26, is about 10 inches at the internal diameter of this circular cone part 28.The upper end on top 28 is included in 1 inch band steel on the upper surface of conical part 26, like this zone with regard to providing to be connected with mechanical fastener as described below.Should be appreciated that this conical part 26 can be other shape that is fit to.In addition, though conical part 26 is preferably made the material that also can use other to be fit to by No. 16 galvanized steels.These materials comprise with the poly-mer being the material of base.
In order to distribute granular material in hopper 12, device 10 also comprises a substrate part 34.The grain materials flow that this substrate part 34 is accepted from conical part 26, and be assigned in the hopper 12 with basic mode uniformly each composition with granular material.As a result, each composition of granular material is assigned in the hopper 12 like this, the ratio basically identical of each composition when the ratio of feasible each composition that takes out from hopper 12 and its are sent in the hopper 12 at first.For example, when granular material was the chicken feed, this granular material not only comprised the coarse grain composition but also comprises the particulate composition, and coarse grain composition and particulate composition all are assigned in the hopper 12 substantially equably.Therefore coarse grain composition and particulate composition can take out from hopper 12, and a uniform feed source so just is provided.
In addition, substrate part 34 also is used for distributing granular material substantially fifty-fifty at hopper.At this, the height change of granular material in hopper 12 is less relatively.Because granular material is assigned in the hopper substantially fifty-fifty, effective preservation capacity of hopper 12 has just improved.In addition, be not full of the space minimum of granular material in the hopper 12, and these spaces can make the moisture accumulation originally and therefore can reduce by the grade that makes granular material as mouldy grade.
In order to be provided at the device of supporting substrates part 34 in the hopper 12, device 10 also comprises a substrate supporting part 46.This substrate supporting part 46 extends to substrate part 34 vertically downward from conical part 26.The top 48 of substrate supporting part 46 is fixed on the top 28 of conical part 26 by first group of support accessory 50.First group of support accessory 50 mechanically is connected with the top 28 of clutch shaft bearing part 52 and conical part 26.With similar form, substrate supporting part 46 also is bearing on the bottom 30 of conical part 26 by second group of support accessory 54.Second group of support accessory 54 extends between the bottom 30 of second bearing parts 56 and conical part 26.First and second bearing partss 52 and 56 allow to relatively rotate between substrate supporting part 46 and the conical part 26.In addition, when conical part 26 was accepted granular material, by the rotation of restriction grain materials flow, first and second groups of support accessories 50 and 54 led to granular material stream in conical part 26.
For the device of supporting substrates part 32 is set on substrate supporting part 46, device 10 also comprises a bearing holder component 58.This bearing holder component 58 is configured on the lower surface 60 of substrate part 34, and by the fastener that adapts to as being bolted on this lower surface.In addition, bearing holder component 58 also is connected the bottom of substrate supporting part 46.Should be appreciated that bearing holder component 58 can be any suitable structure, this structure can be bearing in substrate part 34 on the substrate supporting part 46.
In order to form the flow channel of one group of granular material, substrate part 34 also comprises one group of blade 62-68.Blade 62-68 absorbs the momentum from the grain materials flow in such a way, even substrate part 34 rotates with substantially invariable cireular frequency, below will be to this full-time instruction in addition.By being rotated with substantially invariable cireular frequency, substrate part 34 make the grain materials flow even substantially in hopper.At this, when granular material was loaded onto in the hopper 12, the variation of the height of the upper surface of granular material in hopper 12 was substantially in 18 inches scope.
Blade 62-68 is configured in the middle part 36 and 40 places, bottom of substrate part 34, and has different length and shape.At this, first end 70 of blade 62 is more farther from substrate supporting part 46 than first end 72 of blade 64.Similarly, first end 72 of blade 64 is more farther from substrate supporting part 46 than first end 74 of blade 66.Yet first end 76 of blade 68 is more farther from substrate supporting part 46 than first end 74 of blade 66.The second end 78-84 of blade 62-68 is near the bottom 40 of substrate part 34.Blade 62-68 is fixed on the substrate part 34 by a set of joints sheet (not showing), and these tabs extend through the middle part 36 and the bottom 40 of substrate part 34, and crooked subsequently, so that interference fit is provided.At this, the upper end of each blade 62-68 and midpoint thereof all have a tab, and these tabs can be inserted in the corresponding groove on the substrate part 34 (not demonstration).The bottom of blade 62-68 is not fixed on the bottom 40 of substrate part 34, so that when needs provide suitable operation, blade 62-68 is formed in the artificially.
Select the length and the shape of blade, make the momentum that absorbs by blade 62-68 cause substrate part 34 to rotate with substantially invariable cireular frequency from the grain materials flow.For length, it is also noted that blade 62 is longer than blade 64, and blade 64 is longer than blade 66.In addition, blade 66 is longer than blade 68.The length that preferably makes blade 62 is 11.8 inches, and the length of blade 64 is about 12.6 inches.The length of blade 66 is 12.2 inches, and the length of blade 68 is about 8 inches.It should be understood, however, that also and can adopt other length, as long as the result and the result described herein that are reached are basic identical.
For shape, each blade 62-68 has a corresponding sweep 86-92, and these define a concave surface and a convex surface.The curvature of the sweep 86-92 of each blade 62-68 is different.Preferably allow blade 62 sweep 86 be with the inswept 28.1 ° arc of 24 inches radius.Similarly, the sweep 88 of blade 64 is with the inswept 30.0 ° arc of 24.0 inches radius.In addition, the sweep 90 of blade 66 be with the inswept 43.6 ° arc of 16.0 ° radius, and the sweep 92 of blade 68 is with the inswept 19.1 ° arc of 24.0 inches radius.Yet sweep 86-92 also can adopt other shape, as long as blade 62-68 is to work with the similar mode of mode described herein.
Blade 62-68 provides one group of flow channel 94-102 for the granular material of being accepted by substrate part 34.At this, flow channel 94 is formed between the first side wall part 42 and blade 62 of substrate part 34.Similarly, flow channel 96 is formed between blade 62 and the blade 64, and flow channel 98 is formed between blade 64 and the blade 66.Flow channel 100 is formed between blade 66 and the blade 68 in addition, and flow channel 102 is formed between the right hand edge of blade 68 and substrate part 34, as shown in Figure 5.The quantity that granular material flows through flow channel 94-102 changes along with the position of substrate part 34 rotations.That is, when substrate part 34 rotates, the quantity that flows through the granular material of each flow channel of 94-102 will change.
In order to allow substrate part 34 in hopper 12, distribute granular material, substrate part 34 is rotated with substantially invariable cireular frequency with basic form uniformly.Three factor affecting substrate part 34 rotational angular are arranged.These three factors are the quantity that (a) flows through the granular material of each flow channel 94-102, (b) momentum of the degree of blade 62-68 deviation grain materials flow and the granular material that absorbs thus thereof and (c) the grain materials flow by the degree of wall component 42 deviations of substrate part 34 and the momentum that is absorbed.The structure of blade 62-68 makes these factors obtain balance, thereby substrate part 34 is rotated with substantially invariable cireular frequency.If granular material mobile inhomogeneous from conical part 26 to substrate part 34 then will make these factor balances difficulty especially.This is generally not to be the central authorities that flow directly to conical part 26 when flowing on the conical part 26 because of granular material, generally is the side that flows directly to conical part 26.
Graphic in Fig. 8 (A)-(F) is for the substrate part is rotated with substantially invariable cireular frequency, and blade 62-68 is used for the method for these factors of balance.Regional A among Fig. 8 (A)-(F) represents a zone, it is less relatively to flow to the quantity of the granular material on the substrate part 34 from conical part 26 in this zone, and area B is also represented a zone on the substrate part 34, and wherein the granular material quantity that flows on the substrate part 34 from conical part 26 is more relatively.In addition, the extended arrow of the area B from substrate part 34 shown in Fig. 8 (A)-(F) be used to refer to granular material from area B along the substrate part 34 directions that flow.Though the grain materials flow of being accepted by substrate part 34 has been divided into two zones, should be appreciated that using such method for expressing is in order to simplify discussion.
When substrate part 34 was in position shown in Fig. 8 (A), the quantity of granular material that flows through each flow channel 94-102 was basic identical.Thereby by the momentum that each blade absorbs mainly be since the concave surface of blade 62-68 to the result that deviation produced of granular material, and the momentum of this absorption can cause that substrate part 34 rotates in the counterclockwise direction.As the grain materials flow that acts on the wall component 42, the grain materials flow that acts on the convex surface of blade 62-68 is less relatively.Therefore, the grain materials flow of lesser amt is by the convex surface of blade 62-68 and wall component 42 deviations, thereby the momentum that substrate part 34 clockwise directions are rotated that is absorbed by blade 62-68 is relatively low.
When substrate part 34 turned to position shown in Fig. 8 (B), the grain materials flow by flow channel 94-98 increased to some extent, and reduces to some extent by the grain materials flow of flow channel 100 and 102.Because flowing through the quantity of the granular material of flow channel 94-98 increases, the granular material that flows along substrate part 34 also increases accordingly, these granular materials are by the concave surface deviation of the sweep 86-90 of the blade 62-66 with maximum curvature, thereby blade 62-66 absorbs more momentum from granular material, and these momentum can make substrate part 34 cireular frequency in the counterclockwise direction increase.Yet by also corresponding having increased of quantity of the granular material of the convex surface of blade 62-66 and 42 deviations of wall component, and this increase is opposing substrate part 34 anticlockwise motions.As a result, the cireular frequency of substrate part 34 keeps constant substantially.
When substrate part 34 continued to forward to position shown in Fig. 8 (C), the grain materials flow of flowing through flow channel 94 and 96 increased and the grain materials flow of flowing through flow channel 98-102 reduces.Has maximum curvature owing to set up the sweep 86 and 88 of the blade 62-64 of flow channel 94 and 96, so the granular material of larger amt is by the concave surface deviation of blade 62 and 64.Though this can cause substrate part 34 in the counterclockwise direction rotational angular increase, the quantity that acts on the granular material on the convex surface of wall component 42 and blade 62 and 64 has also increased, this can resist rotating counterclockwise of substrate part 34.Therefore, the cireular frequency of substrate part 34 keeps constant substantially.
When substrate part 34 further forwards position shown in Fig. 8 (D) to, to compare in the position shown in Fig. 8 (C) with substrate part 34, the granular material flow distribution by flow channel 94-102 gets more even.Therefore, the grain materials flow of flowing through flow channel 94 and 96 has reduced, thereby the momentum of the granular material that is absorbed by the surface of blade 62 and 64 has also reduced, flow channel 94 and 96 some limits by sweep 86 and 88, this sweep has the curvature of maximum.Though this can cause substrate part 34 rotational angular minimizing in the counterclockwise direction, has only less granular material to act on the concave surface of wall component 42 and blade 62 and 64 equally.Therefore, the power that rotates counterclockwise of opposing substrate part 34 has also reduced.As a result, substrate part 34 rotates with substantially invariable cireular frequency.
When substrate part 34 forwarded the position of Fig. 8 (E) to, the granular material of the flow channel 94-98 that flows through increased again.Therefore, the momentum that is absorbed by the concave surface of blade 62-66 can increase the cireular frequency of substrate part 34 anticlockwise motions.Yet by also corresponding having increased of the momentum that convex surface absorbed of wall component 42 and blade 62-66, this this momentum has increased the opposing to substrate part 34 anticlockwise motions.As a result, the cireular frequency of substrate part 34 does not change basically.Forward the position of Fig. 8 (F) at substrate part 34 after, the grain materials flow of flow through flow channel 94 and 96 increases, and this has increased the momentum by the concave surface absorption of blade 62 and 64.Meanwhile, the grain materials flow that acts on the convex surface of wall component 42 and blade 62 and 64 has also increased.Therefore, substrate part 34 rotational angular are still constant substantially.
Now method of the present invention will be described.At first, substrate part 34 has blade 62-68, and these blades have produced the flow channel 94-102 that granular material is flowed into.Grain materials flow by flow channel 94-102 causes that blade 62-68 absorbs the momentum from granular material, thereby causes substrate part 34 to rotate.When substrate part 34 rotated, the grain materials flow of flowing through through each flow channel 94-102 changed, and caused that the momentum that is absorbed by blade 62-68 changes.The result of blade momentum change that 62-68 absorbs is that substrate part 34 rotates with a basic unmodified cireular frequency.
Referring now to Fig. 9 the second embodiment of the present invention is described.At this, identical symbol will be used for representing and similar part in first preferred embodiment of the present invention.Device 10 comprises a conical part 26, and this part can be accepted the grain materials flow from pay-off 14.This conical part 26 is connected by one group of mechanical connection part 32 on the zone of open end 16 of the close hopper 12 on the upper cover part 18.Device 10 also comprises a substrate part 34, this substrate part accept from the grain materials flow of conical part 26 and hopper 12 in each composition of uniform method distribution granular material basically.This substrate part 34 has one group of blade 62-68, and these blades have formed one group of flow channel 94-102, also has first and second wall components 42 and 44, and these parts are used for the end portion 40 of grain materials flow along substrate part 34 guiding substrate parts 34.In addition, device 10 also comprises a substrate supporting part 46, and this substrate supporting part extends downwardly into substrate part 34 from conical part 26, is used for supporting substrates part 34 in hopper 12.
For the granular material conductance is gone in the conical part 26, install 10 and also comprise one first conical part 104 with holes and one second conical part 106 with holes.First and second conical parts 104 with holes and 106 are coaxially configuration and also coaxial with conical part 26 mutually.Each first and second conical part 104 with holes and 106 comprises one group of hole 108, and hole 108 is to arrange like this, and promptly there is cross travel in the hole 108 on first conical part 104 with holes with respect to the hole on second conical part 106 with holes.The grain materials flow that access to plant 10 is distributed in hole 108 on first and second conical parts 104 with holes and 106, materials flow is received more equably by conical part 26 like this.
Another preferred embodiment of the present invention is shown among Figure 10.At this, the similar structure of identical symbology.Device 10 comprises a conical part 26, and this conical part operationally receives the grain materials flow from pay-off 14, and is connected by the zone of one group of mechanical connection part 32 with the open end 16 of close hopper 12 on upper cover part 18.Device 10 also comprises a substrate part 34, and this substrate part is accepted from the grain materials flow of conical part 26 and distribute the various compositions of granular material substantially equably in hopper 12.Substrate part 34 has one group of blade 62-68, and these blades have formed one group of flow channel 94-102, also has first and second wall components 42 and 44, and these parts are used for the end portion 40 of grain materials flow along substrate part 34 guiding substrate parts 34.In addition, device 10 also comprises a substrate supporting part 46, and this substrate supporting part extends downwardly into substrate part 34 from conical part 26, is used for supporting substrates part 34 in hopper 12.
11-13 with the aid of pictures has wherein shown another preferred embodiment of the present invention.At this, the similar structure of identical symbology.As previously mentioned, shedding apparatus 10 is used for grain, feed or food product or other material are assigned in the hopper 12.The streams that hopper 12 is accepted from pay-off 14 from its open end 16.12 streams has given momentum from pay-off 14 to hopper, and this momentum is distributed granular material through installing 10 in hopper 12.
Hopper 12 also comprises a water-proof part 118, and this part extends downwards from the bottom 116 of wall component 20.This water-proof part 118 preferably extends about two (2 ＂) inch downwards to four (4 ＂) inch from putting 120, and point 120 is bottoms 116 and funnel shaped part 22 connections of wall component 20.Wall component 20 and water-proof part 118 are to be made of a kind of metallic material with a lot of ripples 122, and this shows clearlyer at Figure 12-13.Water-proof part 118 can be the part that the single-piece of wall component 20 extends or separates, i.e. bolt up or be riveted on the wall component 20.Shown in Figure 12-13,20 one-tenth integral body of water-proof part 118 and wall component, and wall component 20 usefulness bolts 126 are connected on funnel shaped part 22 and the supporting rib 124.Water-proof part 118 comprises connecting bore 128, and this connecting bore allows the additional extension part of connection (not showing), and this additional extension part can be used to provide the extendible portion of wall component 20.This additional extension part also can be used to the hopper 12 that provides more attractive in appearance or make rain flow further deviation, as following with the Short Description.
One skilled in the art will appreciate that in rainfall rain will be along wall component 20 and water-proof part 118 to dirty.To cause that at last rainwater is distributed near the circumference basis 130 of hopper 12.Like this, the existence of water-proof part 118 stops basically or has prevented that rainwater from flowing in the lower part outlet part 24 along funnel shaped part 22 downwards, thereby keeps funnel shaped part 22 and lower part outlet part 24 to be under the dry condition in rainfall basically.In contrast, in traditional hopper that does not have water-proof part 118 12, rain will be from loam cake 18 along wall component 20 and funnel shaped part 22 to dirty, institute's rain stream converges at lower part outlet part 24 places.
To be described in below when comprising rainfall under the various climatic conditions, granular material will be kept at method in the hopper 12.At first, hopper 12 has upper cover part 18, and this part links to each other with the top 114 of wall component 20, and hopper 12 also has funnel shaped part 22, and this funnel shaped part links to each other with the bottom 116 of wall component 20.Funnel shaped part 22 guiding granular materials arrive exit portion 24, and rainproof part 118 stops rainwater to flow down along funnel shaped part 22 basically.In case make, hopper 12 just can be exposed under the various meteorological conditionss, comprises rainy weather.If rain, rainwater will be beaten on upper cover part 18 and wall component 20, and flow downward along wall component 20.In the process that flows downward, rainwater leaves funnel shaped part 22, thereby keeps the following side of hopper 12 to be under the condition of substantially dry.
Reference diagram Fig. 4-17 has two purpose made lower part outlet parts 24, promptly is commonly called feeder hopper and screw feeder parts, is used for discharging granular material from hopper 12.As shown in figure 14, this feeder hopper and screw feeder parts 140 are rigidly connected on funnel shaped part or the funnel bin 22 by the reinforcing sleeve 142 of a circle.Sleeve pipe 142 comprises a cylindrical-conical sidewall sections 144, and this sidewall sections is fixed on the inside of lower hopper shape part 22 by bolt 146.Sleeve pipe also comprises the first cylinder side wall part 148, and the diameter of this part is 16 inches or 25 inches, and outwards extends to the second cylinder side wall part, 150 places, and diameter reaches 17.5 or 26.5 inches respectively.This feeder hopper and screw feeder parts 140 are rigidly connected on second cylindrical portions may 150 by bolt 152.The bigger diameter of second cylindrical portions may 150 is bigger feeder hopper and screw feeder parts 140, and bolt 152 provides the space.Like this, when granular material or grain 154 along the inside of hopper 12 during by sleeve pipe 142, grain 154 is by the cylindrical portions may 148 of 16 inch diameters, and is not obstructed when entering feeder hopper and screw feeder parts 140.
Feeder hopper and screw feeder parts 140 comprise that one is gone up feeder hopper part 156, one slide/close transition portion 158 and bottom or screw feeder feeder hopper part 160.This upper feed hopper part 156 comprises a cylindrical flange 162 that highly is about 1.5 inches, and this flange is by bolt 152 and sleeve pipe 142 bonded assemblys.Normally fitfull taper of upper feed hopper part 156 (seeing Figure 15), it is tapered to tetragonal slip/close transition portion 158.This slip/close the transition portion height is about 0.75 inch, and defines six inches openings of taking advantage of ten inches, and this opening is closed mechanism's 166 sealings or closes.This close mechanism 166 comprises a slide plate 168, and this slide plate slides in groove or track 170 usually from right to left, so that grain 154 is discharged in the underfeed bucket part 160.Slide plate 168 comprises the chain 172 of a band inserting handle 174, and this chain is used for spurring slide plate 168 and slides along groove or track 170.
Underfeed bucket part 160 comprises first sloping baffle 176 and second sloping baffle 178, and they are fixed on the inside of underfeed bucket part 160 by bolt 180.Underfeed bucket part 160 also comprises a side access opening baffle plate 182, can be from here near underfeed bucket part 160 when needs are safeguarded this zone.The bottom of underfeed bucket part 160 is screw feeder duct members 184.This screw feeder duct member 184 can be the sort of type of buying from Chore-Time or Brock, Milford, Indiaha etc., promptly so-called Chore-Time Flex-Auger, and its diameter is from about one and 1/2nd inch to four inches.This screw feeder duct member 184 comprises that one is not in the mood for 186, one current limiting tubes 188 of screw feeder and fixed type bearing parts 190.Be not in the mood for screw feeder 186 and connect rotationally, and current limiting tube 188 is rigidly connected to the center of not being in the mood for screw feeder by fixed type bearing parts 190 by these fixed type bearing parts 190.The granular material amount of current limiting tube 188 restriction feeding screw feeder duct members 184, delivery pipe 192 only is filled to 60% or 80% like this.Also it should be noted that at single screw feeder duct member 184 places and can also substitute with the twin screws parts.
When not being in the mood for screw feeder 186 clockwise directions and rotating, stir on ball or the opening 196 of cannon ball (cannon) 194 in underfeed bucket part 160 vibration or beat.Partly open as shown in Figure 15 when slide plate 166 and to form opening 198 or when all opening, grain 154 enters and is full of underfeed bucket part 160.When not being in the mood for screw feeder 186 clockwise direction rotate continuously, stir ball 194 and beat along second sloping baffle 178 basically, make grain 154 flow and enter and be not in the mood in the screw feeder 186 along first sloping baffle 176.Do not rotate owing to be in the mood for screw feeder 186 clockwise directions, produced dextrosinistral passage in not being in the mood for screw feeder 186, grain 154 also mainly flows downward from the right.In other words, when not being in the mood for that screw feeder is full of grain 154 and when rotating in the clockwise direction, the opening portion of not being in the mood for the screw feeder exposed portions or being used to accept other grain always is positioned at the right side of opening 196, makes to flow downward with higher speed at the right side of hopper 12 grain 154.
The flow problem of grain 154 is a uneven distribution in hopper 12, mainly be positioned at the right of feeder hopper part 156 by the higher flow velocity of symbol 200 expressions, and be positioned at the Zuo Bichu of upper feed hopper part 156, thereby produced a transitional region 204 by the lower flow velocity of symbol 202 expressions.If remove sloping baffle 176 and 178, this state can further increase the weight of, and does not keep right more because at this moment be in the mood for the opening that is not filled of screw feeder 186.In addition, only there is a screw feeder rotate if adopted twin screws, when grain 154 can increase the biasing unloading during by opening 164.Along with grain 154 is discharged from hopper 12, this grain 154 has produced a discharged state of biasing in this inhomogeneous and inconsistent logistics of upper feed hopper part 156, as shown in figure 18.
When carrying out so-called " slip treated ", this biasing unloading also is a great problem.In other words, in the slip treated process, a lot of hoppers 12 by common screw feeder duct member 184 fluids combine.A terminal hopper 12 and a plurality of middle hopper 12 like this, are just arranged.Usually, the slide plate 168 of terminal hopper 12 is all opened, and this will reduce the biasing unloading in terminal hopper 12.Yet, middle hopper 12 will only partly be opened slide plate 168, as shown in figure 15, keeps flowing of granular material 154 when unstowing with convenient terminal hopper 12, the biasing unloading will take place in the hopper 12 between this will cause and impel in these, and it is unfavorable therefore carrying out slip treated with present system.
Therefore the grain 154 that is deposited in the hopper 12 will have a high wall 206 and a low wall 208, produce a much the same inclination angle of the loll with granular material 154.For example, if granular material 154 is chicken feeds, its loll is about 40 ° to 45 °.The discharged condition of this biasing produces very big stress on hopper 12, may cause sleeve pipe 142 distortion, even can produce cracking or damage by stress on lower hopper shape part 22.Time one is long, and the global shape of hopper 12 also can influenced and distortion.In addition, if grain 154 is to flow to the right side from the left side, then biasing unloading only is the state counter-rotating from as shown in figure 18.
Shown second feeder hopper and screw feeder parts 210 at this, it also is used for discharging grain 154 from hopper 12.At this, the similar structure of identical symbology.Feeder hopper is identical with screw feeder parts 140 with feeder hopper basically with screw feeder parts 210, and it also comprises upper feed hopper part 156, slide/close transition portion 158 and underfeed bucket part 160.Only difference is to have added wedge-like portion 212 in feeder hopper and screw feeder 210, and this part goes up screw feeder duct member 184 tendencies or clockwise rotates 30 °, and this part is by symbol 214 expressions.According to the special requirement of carrying grain 154, the inclination angle that can make wedge-like portion 212 is from any one about 0 ° to 30 ° angle.Bevelled screw feeder duct member 184 can make grain 154 move up, and resembles usually to enter in building or other the storage device needed.An additional bend pipe can be connected on the delivery pipe 192, this bend pipe can be with respect to the axis plane of screw feeder duct member 184 angle into about 0 ° to 30 °, and the total angle that makes lifting is between 0 ° to 60 °.
At this, feeder hopper is identical with the defective that feeder hopper and screw feeder 140 are showed again with the defective that screw feeder parts 210 show.In other words, grain 154 still inhomogeneous and inconsistent logistics in hopper 21.In particular, along with slide plate 168 partially opens or opens entirely, grain 154 is full of underfeed bucket part 160 along baffle plate 216 and a sidewall 218.The straight plate 220 in vibrating ball 194 edges vibrates or beats, and opening 222 is exposed substantially.When not being in the mood for screw feeder 186 and clockwise rotating, be not in the mood for screw feeder and be filled from right to left.Thereby make the logistics of grain 154 in hopper 12 inhomogeneous or inconsistent.Grain 154 will have materials flow 200 and materials flow 202 than slug flow speed of a high flow velocities, produce the transitional region 204 by upper feed hopper part 156.As shown in figure 18, so further generation discharged condition of setovering.In addition, have inclined wedge part 212, strengthen and produced a more sharp-pointed biasing dicharge angle because opening 222 be in underfeed bucket part 160 more the right some.
Turn to Figure 19-22 now, wherein shown two the preferred embodiments of the present invention, these embodiment will produce a method and apparatus, and to keep discharging the logistics of granular material 154 of hopper 12 even, and this hopper is agricultural material storehouse hopper 12 preferably.At this, identical symbol is used for structure like the representation class.Figure 19-20 has shown feeder hopper and screw feeder parts 224 according to a first advantageous embodiment of the invention.By sleeve pipe 142, bolt 146 and bolt 152 this feeder hopper and screw feeder parts 224 are rigidly connected on the lower hopper shape part 22 of hopper 12.The screw feeder parts 224 of this feeder hopper comprise a upper feed hopper part 226, one slide/close transition portion 228 and bottom or screw feeder feeder hopper part 230.This upper feed hopper part 226 comprises a columnar flange 228, and the height of this flange is about 1.5 inches and by bolt 152 it is rigidly connected on the sleeve pipe 142.Upper feed hopper part 226 also comprises a circular cone or the transition portion 232 that converges and a cylindrical shape chimney-like part 234.
Polymer moieties and steel part be formed or be comprised to circular cone transition portion 232 and chimney-like part 234 can by transparent polymeric material.This circular cone transition portion 232 has 52 ° interior angle, or with respect to have an appointment 26 ° angle of vertical plane surface, perhaps with respect to the horizontal surface by symbol 236 expressions 64 ° angle is arranged.If need more gap in this zone, angle that can this circular cone transition portion 232 of corresponding adjustment.The inlet of circular cone transition portion 232 is limited by the feed opening 238 of a circle, the diameter of this opening 238 is about 17.5 inches or be about 26.5 inches, and taper on the circular outlet opening 240 that diameter or lateral dimension be about 4.75 inches, this outlet opening combines with cylinder chimney-like part 234.Cylinder chimney-like part 234 keeps 4.75 inches of diameters, and it highly also is 4.75 inches, and wherein diameter (x) is by symbol 242 expressions, and highly (y) is by symbol 244 expressions.The diameter 242 of opening 240 is about 1: 1 with the ratio of the height of cylinder chimney-like part 234 (i.e. (x)=(y)) like this.
At this, the transition portion 228 that slides/close comprises closing organ 166, and there are slide plate 168, chain 172 and handle 174 in this mechanism, and when this slide plate of pulling, it slides in track 170, so that underfeed bucket part 230 is exposed to grain 154.The baffle plate 246 that one disymmetry is arranged in underfeed bucket part 230 is with grain 154 guide openings 248.Baffle plate 246 is connected in the underfeed bucket part 230 by bolt 250, and this baffle plate 246 angle with respect to the horizontal plane is about 40 °.Be also noted that also and can omit baffle plate 246, so that in underfeed bucket 230, expose the whole screw feeder 186 of not being in the mood for.Have the screw feeder duct member 184 of not being in the mood for screw feeder 186, current limiting tube 188 and fixed type bearing parts 190 and be positioned at the foot of underfeed bucket part 230.Be not in the mood for screw feeder 186 and be connected with fixed type bearing parts 190 rotationally, and current limiting tube 188 is fixing with fixed type bearing parts 190 rigidly.
Below with reference to Figure 19,20 and 22, the method that makes the granular material 154 that flows out hopper 12 keep even logistics is described.At first, adopt feeding device 10, in hopper 12, load granular material 154 equably.In case be full of granular material 154 in the hopper 12 and when wanting from this hopper 12 to discharge granular material 154, utilized handle 174 and chain 172 that slide plate 168 is opened slidably along groove 170.Slide plate 168 can resemble in what is called " slip treated " process take place usually partly open and expose opening 252, perhaps all open.Along with slide plate 168 is opened, utilize a electrical motor to make and be not in the mood for the rotation of screw feeder 186 clockwise directions away from screw feeder duct member 184.When not being in the mood for the rotation of screw feeder clockwise direction, grain 154 begins to flow out delivery pipe 192, and is not in the mood for additional traditional pipe arrival desired location of screw feeder 186 (not showing) by encirclement.
In order to make grain 154 by whole hopper 12 time, have the uniform logistics of making peace, the grain that promptly wherein is introduced into is the grain (promptly advanced/as to go out earlier) for discharging earlier also, the logistics that must basically identical be arranged at the round entrance 238 or round exit 240 places of feeder hopper and screw feeder parts 224.When the logistics of a basically identical, the top 254 of the feed post 256 in the hopper 12 keeps it to be full of shape, and promptly 254 places, top of feed post 256 are general becomes a loll, as shown in figure 22.For example, the loll of chicken feed or natural stocking angle are about 40 ° to 45 °, and angle with respect to the horizontal plane is essentially loll at 254 places, top of feed post 256, and this is also parallel with upper cover part 18 basically.
In order to make the mobile granular material 154 of moderate produce and keep the logistics of basically identical when flowing out hopper 12, the diameter 242 of round exit 240 must be basic identical with the height 244 of cylinder chimney-like part 234.Like this, if the loll of granular material 154 is about 40 ° to 45 °, it is 1: 1 with keeping the diameter 242 and the ratio of height 244.In other words, the flow problem in cylinder chimney-like part 234 reaches such effect, promptly feeds from right to left when not being in the mood for screw feeder 186 when grain 154, has set up a dextrosinistral logistics 258 in this chimney-like part 234.Grain slower logistics or static grain stream 260 are in the chimney-like part 234 by left-to-right position then, have produced a transitional region 262, and this transitional region has an angle 264, and this angle loll basic and granular material 154 is similar.
For example, be about 40 ° to 45 ° chicken feed if granular material 154 is loll, the angle 264 of the transitional region 262 that forms in cylindrical chimney-like part 234 is about 40 ° to 45 °.The angle 264 of transitional region 262 makes almost on the whole diameter of circular outlet opening 240 or all be full of the logistics 258 of fair speed on the whole lateral dimension of opening from right to left.Upwards strengthen and be delivered to whole hopper 12 in the logistics 258 of the unanimity at circular outlet opening 240 places, in hopper 12, produced the logistics of basically identical, as shown in figure 22.Like this, when as shown in figure 20, in the slip treated process,, can obtain the logistics of a unanimity along with slide plate 168 partially opens or opens comprehensively.In other words, middle hopper 12 can make its slide plate 168 partly open to 252, as shown in figure 20, and can not resemble the discharged state of setovering the existing system in these in the hopper 12.This just can carry out slip treated satisfactorily and can not produce the biasing unloading in the hopper 12 in the middle of any hopper comprises.If the 154th, thicker granular material, its loll is lower, for example is about 20 ° to 30 °, and the ratio of the diameter 242 of then circular outlet opening 240 and the height 244 of cylindrical chimney 234 just changes as the function of the loll of this thick material.In other words, the angle 264 of transition portion 262 is less, thereby under the diameter 242 unmodified conditions that keep outlet opening 240, can reduce the height 244 of cylindrical chimney-like part 234.
Especially, when loll 264 is 30 ° and diameter 242 when being about 4.75 inches, but utilize known triangle knowledge predominant height 244 need be about 2.74 inches.Like this, just need the diameter 242 and the ratio of height 244 to be 4.75 to 2.74 or to be 1.73 to 1 (1.73: 1).Therefore just selected the ratio of diameter 242, so that the angle 264 of transitional region 262 is probably equated with the loll of the concrete granular material 154 that is adopted with height 244.More particularly, if diameter or transverse opening diameter 242 are (x), height dimension 244 is (y), and loll 264 is θ, wherein:
Tanθ＝y/x
Solving θ is: θ=Tan
-1Y/x
Therefore, highly (y) will probably equal the loll (θ) of selected concrete granular material divided by the arctan function of diameter (x).Like this, when granular material 154 is discharged, will upwards produce the logistics of the granular material 154 of a basically identical from hopper 12 from delivery port 240 to hopper 12.
In addition, it should be noted that at first and will select the diameter 242 of outlet opening 240 according to the density of needed logistics capacity and granular material 154.For example, for having 40 pounds of (lbs./ft of the promptly every approximately cub ft of the chicken of being generally feed density
3) granular material 154, the diameter 242 of outlet opening 240 is that 4.75 inches logistics that will make free stream cross outlet opening 240 are 600 pounds of per minutes (lbs./min).If want to obtain faster or slower logistics, can adjust the size of diameter 242 in view of the above.For example, when the diameter of outlet opening 240 is six inches, can under the density conditions of 40 pounds of every cub fts, obtain the free-flowing logistics of per minute 1000-1100 pound.Usually logistics capacity is adjusted to and makes it reach screw feeder duct member 184 desired logistics capacities.In case selected diameter 242, the height 244 of chimney-like part 234 just can decide according to the loll of selected granular material 154.At this moment can adopt equation Tan θ=y/x, wherein x (diameter 242) and θ (loll) are known, can solve y (height 244) from following formula.
See Figure 21 again, wherein shown one second preferred embodiment of feeder hopper of the present invention and screw feeder parts 266.At this, the similar structure of identical symbology.Feeder hopper is identical with screw feeder parts 224 with feeder hopper basically with screw feeder parts 266, and difference is that it has comprised one 30 ° wedge-like portion 268, and these parts are positioned at circular outlet opening 270 places of cylindrical chimney-like part 234.This wedge-like portion can become 0 ° to 30 ° angle with horizontal surface, and also has 0 ° to 30 a ° additional bend pipe to be used for adjusting delivery pipe 192, as shown in figure 17.This bevelled wedge-like portion 268 makes screw feeder duct member 184 make progress into 30 ° of angles, thereby grain upwards can be transported in building or other the structure.In addition, underfeed bucket part 230 comprises an independent sloping baffle 272, and this baffle plate is connected by bolt 274, also comprises a straight plate 276, produces an opening 278, and stirring ball 194 is in this vibration or beat.
Have, the operation of feeder hopper and screw feeder parts 266 is identical with screw feeder parts 224 with feeder hopper basically again, so that upwards produce the granular material logistics of basically identical to the whole hopper from circular outlet opening 240.If used thicker granular material 154,, can under the situation of the diameter 242 that keeps outlet opening 240, reduce the height 244 of cylindrical chimney-like part 234 because the angle 264 of transitional region 262 is littler.On the contrary,, height 244 can be increased, make height 244 like this greater than diameter 242 if adopt slower logistics.The material post that logistics produced 256 of basically identical is with similar as shown in figure 22.
Those skilled in the art will appreciate that above-mentioned description of the present invention can be used with various forms.Therefore, just present invention is described with special case, and scope of the present invention is not limited.For example, the substrate part can be other geometry, as long as it still is used for forming one group of flow channel that is used for granular material.At this, blade can resemble has different shapes and structure the end of substrate part.In addition, also can change the direction of bent blades on the substrate part.In addition, the substrate part preferably rotates with the cireular frequency that changes less than per minute 10 approximately, but the substrate part also can be with other cireular frequency rotation, as long as the distribution of granular material in hopper is uniform and/or consistent as described above.In addition, hopper also can be different shapes.For example, hopper can be tubulose, rectangle or octagonal.For those skilled in the art, other change will become clearly.
Claims (23)
1. the device of the logistics basically identical of a granular material that keeps flowing out hopper, said device comprises:
A transition portion that converges, this defines a feed opening, and this opening converges to an outlet opening place, and said outlet opening has a transverse opening size (x);
An elongated chimney-like part, this part matches with the said transition portion that converges at said outlet opening place, said elongated chimney partly has a height dimension (y), wherein said transverse opening size (x) is determined by the loll of granular material basically with the ratio of said height (y), so that keep the logistics basically identical of granular material.
2. according to the device of claim 1, it is characterized in that: the said transition portion that converges is a circular cone transition portion, and said elongated chimney-like partly is an elongated cylindrical shape part.
3. according to the device of claim 2, it is characterized in that: said conical transition part is with respect to the horizontal plane being that converge at 64 ° angle, and said transition opening size (x) is about 4.75 inches, and said height dimension (y) is about 4.75 inches.
4. according to the device of claim 1, it is characterized in that: saidly converge transition portion and said elongated chimney-like part is formed by a kind of transparent material, so that the situation that the observation granular material passes through.
5. according to the device of claim 1, it is characterized in that: said hopper comprises rainproof part that extends from said hopper of a lower hopper shape partial sum near said lower hopper shape part, flow on the said lower hopper shape part so that prevent rain basically, the said transition portion that converges is rigidly connected on the said lower hopper shape part.
6. according to the device of claim 1, it is characterized in that: said elongated chimney-like partly is an elongated columnar chimney, and it is connected at circular outlet opening place with the said transition portion that converges.
7. according to the device of claim 1, it is characterized in that: said transverse opening size (x) is about 1: 1 with the ratio of said height (y).
8. according to the device of claim 1, it is characterized in that: said height dimension (y) is an angle divided by the arctan function of said lateral dimension (x), and this angle probably equals the loll of granular material.
9. according to the device of claim 1, it is characterized in that, also comprise a closing organ, this mechanism links to each other with said elongated chimney-like segment fluid flow ground, wherein said closing component can partly be opened in slip treated, and can not produce the biasing unloading of granular material in hopper.
10. the device of the logistics basically identical of a granular material that keeps flowing out hopper, said device comprises:
A transition portion that converges, this defines a feed opening, and this opening converges to an outlet opening place, and said outlet opening has a transverse opening size (x);
An elongated chimney-like part, this part matches with the said transition portion that converges at said outlet opening place, said elongated chimney partly has a height dimension (y), wherein said height (y) is an angle divided by the arctan function of said transverse opening size (x), and this angle equates with the loll of granular material basically.
11. the device according to claim 10 is characterized in that: the said transition portion that converges is a circular cone transition portion, and this part has a circular feed opening and a circular outlet opening, and said elongated chimney-like partly is an elongated cylindrical shape part.
12. the device according to claim 10 is characterized in that: saidly converge transition portion and said elongated chimney-like part is formed by a kind of transparent material, so that the situation that the observation granular material passes through.
13. device according to claim 10, it is characterized in that: said hopper comprises rainproof part that extends from said hopper of a lower hopper shape partial sum near said lower hopper shape part, flow on the said lower hopper shape part so that prevent rain basically, the said transition portion that converges is rigidly connected on the said lower hopper shape part.
14. the device according to claim 10 is characterized in that: said transverse opening size (x) is about 1: 1 with the ratio of said height (y).
15. the device of the logistics basically identical of a granular material that keeps flowing out hopper, said device comprises:
A transition portion that converges, this defines a feed opening, and this opening converges to an outlet opening place, and said outlet opening has a transverse opening size (x);
An elongated chimney-like part, this part matches with the said transition portion that converges at said outlet opening place, said elongated chimney partly has a height dimension (y), wherein said transverse opening size (x) is about 1: 1 with the ratio of said height (y), so that keep the logistics basically identical of granular material.
16. device according to claim 15, it is characterized in that: said hopper comprises rainproof part that extends from said hopper of a lower hopper shape partial sum near said lower hopper shape part, flow on the said lower hopper shape part so that prevent rain basically, the said transition portion that converges is rigidly connected on the said lower hopper shape part.
17. according to the device of claim 15, also comprise a closing organ, this mechanism links to each other with said elongated chimney-like segment fluid flow ground, wherein said closing component can partly be opened, and can not produce the biasing unloading of granular material in hopper.
18. the device according to claim 15 is characterized in that: accept and discharge granular material in the hopper and be basically with advanced/rule of going out earlier and carry out
19. the method for the logistics basically identical of a granular material that keeps flowing out hopper, the step that said method comprises is:
Determine the logistics capacity of required granular material;
Be chosen in the outlet opening on the elongated chimney-like part, the lateral dimension of this opening is (x), and the logistics capacity of being wanted is provided;
Determine the loll of granular material;
Select the height (y) of elongated chimney-like part, wherein said height dimension (y) is an angle divided by the arctan function of said transverse opening size (x), and this angle equates substantially with the loll of granular material;
Granular material is full of hopper;
From hopper, discharge granular material by elongated chimney-like part, so that obtain the granular material logistics of a basically identical.
20. according to the method for claim 19, the step that also comprises is:
A middle hopper of a terminal hopper is provided, and both movably interconnect;
On the terminal hopper, all open first closing organ; With
Open second closing organ on middle hopper top, produced consistent granular material logistics in terminal hopper and the middle hopper in wherein, and the biasing unloading has not taken place in terminal hopper and middle hopper.
21. a hopper of preserving granular material, said hopper comprises:
One can cover the upper cover part that is stored in the granular material in the hopper basically;
A side member, these parts have a top and a bottom, and the said top of said wall component is connected with said loam cake, and said side member can be sealed the granular material that is stored in the hopper;
An assemblying part that links to each other with the said bottom of said side member, said assemblying part can be with the opening on said assemblying part of the guiding of the granular material in the hopper;
A device, it is connected the said equipped at outlet port of said assemblying part, so that keep discharging the granular material logistics basically identical of hopper.
22. hopper according to claim 21, it is characterized in that: saidly be used to keep the device of logistics basically identical to comprise a circular cone transition portion, this defines a feed opening, this opening converges to an outlet opening place, and an elongated cylinder chimney part cooperates at the outlet opening place with said circular cone transition portion.
23. hopper according to claim 22, it is characterized in that: said outlet opening has a transverse opening size (x), and said elongated, cylindrical chimney-like partly has a height dimension (y), and wherein said transverse opening size (x) is determined by the loll of granular material basically with the ratio of said height dimension (y).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US801953 | 1997-02-18 | ||
| US08/801,953 US5906293A (en) | 1993-09-24 | 1997-02-18 | Method and apparatus for maintaining uniform mass flow of granular material out of a container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1196325A true CN1196325A (en) | 1998-10-21 |
| CN1121336C CN1121336C (en) | 2003-09-17 |
Family
ID=25182448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98106458A Expired - Fee Related CN1121336C (en) | 1997-02-18 | 1998-02-18 | Method and apparatus for maintaining uniform mass flow of granular material out of container |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1121336C (en) |
| BR (1) | BR9800642A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174762A (en) * | 2011-02-25 | 2011-09-07 | 泉州华祥纸业有限公司 | Circulating feeding device for paper pulp beating |
| CN102897444A (en) * | 2012-09-27 | 2013-01-30 | 徐州天地重型机械制造有限公司 | Dry sand silo discharging device |
| CN105151570A (en) * | 2015-07-19 | 2015-12-16 | 窦祥增 | Falling hopper for grain volume weight measuring instrument |
| CN107857003A (en) * | 2017-11-23 | 2018-03-30 | 广东嘉俊陶瓷有限公司 | Visual feeding warehouse |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4802609A (en) * | 1986-12-15 | 1989-02-07 | Morse Hugh B | Sanitary foodstuff dispenser |
| IN187064B (en) * | 1995-01-17 | 2002-01-19 | Ctb Inc |
-
1998
- 1998-02-18 BR BR9800642A patent/BR9800642A/en not_active IP Right Cessation
- 1998-02-18 CN CN98106458A patent/CN1121336C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174762A (en) * | 2011-02-25 | 2011-09-07 | 泉州华祥纸业有限公司 | Circulating feeding device for paper pulp beating |
| CN102897444A (en) * | 2012-09-27 | 2013-01-30 | 徐州天地重型机械制造有限公司 | Dry sand silo discharging device |
| CN105151570A (en) * | 2015-07-19 | 2015-12-16 | 窦祥增 | Falling hopper for grain volume weight measuring instrument |
| CN105151570B (en) * | 2015-07-19 | 2017-06-09 | 窦祥增 | Grain volume weight analyzer material-falling hopper |
| CN107857003A (en) * | 2017-11-23 | 2018-03-30 | 广东嘉俊陶瓷有限公司 | Visual feeding warehouse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1121336C (en) | 2003-09-17 |
| BR9800642A (en) | 2000-08-29 |
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