A kind of roller mill separator with side screw feeding device
Technical field
The utility model relates to roller mill separator, particularly a kind of roller mill separator with side screw feeding device.
Background technology
The roller mill separator applied in the industry such as cement, metallurgy at present, its feed arrangement is arranged on the central upper portion position of described roller mill separator general structure usually, the feed pipe of described feed arrangement is longer, and material enters feed pipe by the top entry of described feed arrangement and be finally scattered in mill position after the movement of falling object.The technological deficiency that charging like this produces is: this feed arrangement is unfavorable for that material evenly enters and forms the stable bed of material, long focal adhesion and then the blocking feed pipe easily causing material of feed pipe, equipment runs and is also subject to the humidity of material and the impact of Changes in weather factor simultaneously, these technological deficiencies are totally unfavorable for the long-term safety of equipment, even running, significantly can affect production efficiency simultaneously.
The patent No. is the high-efficient powder concentrator that the Chinese invention patent of ZL201510070186.2 discloses a kind of drive material-strewing device, described powder concentrator bottom is provided with lower bands power material-strewing device (10), and by spreading disk (16), the supporting arrangement (17) be connected with spreading disk (16) and the second transmission device of being connected with supporting arrangement (17), (18 form described lower bands power material-strewing device (10).This invention has following technique effect: 1) bottom arranges drive material-strewing device, powder material to be selected fully can be disperseed, for next step rotor classification provide stable, uniform flow field, grinding efficiency improve 10-15%; 2) underfeed: rotor of powder separator selects powder concentration significantly to lower, and rotor dynamic consumption also reduces 15-20% thereupon; 3) bottom discharging: large granular materials and iron block are directly discharged from discharge port bottom, can not blocking top seal, and upper guide is little to blade wear.But the feed arrangement of this invention is still arranged on the central upper portion position of described high-efficient powder concentrator general structure, therefore following technological deficiency can be produced: this feed arrangement is unfavorable for that material evenly enters and forms the stable bed of material, long focal adhesion and then the blocking feed pipe easily causing material of feed pipe, equipment runs and is also subject to the humidity of material and the impact of Changes in weather factor simultaneously, these technological deficiencies are totally unfavorable for the long-term safety of equipment, even running, significantly can affect production efficiency simultaneously.
The patent No. is the block-proof type feeding chute that the Chinese utility model patent of ZL201120378382.3 discloses a kind of slag vertical-mill powder concentrator, comprise cylindric feeding chute, annular conduit is provided with in the inner side at feeding chute top, annular conduit around feeding chute inwall one week, and is connected with waterpipe; Annular conduit is evenly provided with multiple apopore.This utility model avoids slag to bond in chute, and ensure that feeding is unimpeded, equipment runs well.But the feed arrangement of this utility model is still arranged on the central upper portion position of described high-efficient powder concentrator general structure, therefore following technological deficiency can be produced: this feed arrangement is unfavorable for that material evenly enters and forms the stable bed of material, long focal adhesion and then the blocking feed pipe easily causing material of feed pipe, equipment runs and is also subject to the humidity of material and the impact of Changes in weather factor simultaneously, these technological deficiencies are totally unfavorable for the long-term safety of equipment, even running, significantly can affect production efficiency simultaneously.
The patent No. is that the Chinese utility model patent of ZL201420129557.0 discloses a kind of roller mill separator having material guide device, comprises gather materials cone, lower house, rotor, wind blade, air outlet, motor, upper cone and grading room; Its upper cone, lower house, to gather materials between cone, wind blade by the material guide device be made up of upper plate, guide angle α, lower plate, fixed head; Described material guide device with gather materials bore, lower house, upper cone form air port ring jointly.Compared with prior art scheme, this utility model effectively can improve mill efficiency, reduces grinding and circulating load, improves powder concentrator classification efficiency and output.But the feed arrangement of this utility model is still arranged on the central upper portion position of described high-efficient powder concentrator general structure, therefore following technological deficiency can be produced: this feed arrangement is unfavorable for that material evenly enters and forms the stable bed of material, long focal adhesion and then the blocking feed pipe easily causing material of feed pipe, equipment runs and is also subject to the humidity of material and the impact of Changes in weather factor simultaneously, these technological deficiencies are totally unfavorable for the long-term safety of equipment, even running, significantly can affect production efficiency simultaneously.
Utility model content
In order to solve the technological deficiency that above-mentioned existing roller mill separator exists, the utility model provides a kind of roller mill separator with side screw feeding device, this roller mill separator can make initial material in the at the uniform velocity whipping process of screw feeder blade with stable power, steadily, also finally deliver on mill uniformly across powder concentrator, thus the feed system that effectively prevent existing central blanking formula roller mill separator easily causes feed pipe to block, and then affect the technological deficiency of safe operation.Meanwhile, the utility model adopts the transmission system rotor driven of compact conformation to run, and makes qualified material carry out multi-stage separation at moving-stator blade assembled highly-effective separated region, guarantees roller mill separator safety, Effec-tive Function, improve production efficiency of equipment and economic benefit.
For this reason, the technical solution adopted in the utility model is specific as follows:
A kind of roller mill separator with side screw feeding device, comprise back powder cone and side screw feeding device, described roller mill separator bottom is provided with Vertical Mill, described Vertical Mill comprises vertical mill casing and mill, described side screw feeding device is fixedly mounted on described vertical mill casing side, and ecto-entad runs through described vertical mill casing respectively and returns powder cone, described side screw feeding device is provided with material inlet and material outlet, described material outlet is arranged in position directly over described Hui Fenzhui center and described mill and Open Side Down, due to the close together between described material outlet and mill, therefore, it is possible to prevent material from causing material dispersion phenomenon in the process dropping to mill.
Preferably, described side screw feeding device is provided with independently side-fed transmission component, described side-fed transmission component comprises reducing motor, hollow shaft and screw feeder blade, described reducing motor is connected with described hollow shaft by the first shaft coupling, described hollow shaft periphery is provided with screw feeder blade, described material inlet is arranged on the front end of described screw feeder blade and opening upwards, and described material outlet is arranged on the end of described screw feeder blade.
Described side screw feeding device drives described hollow shaft and the uniform rotation of described screw feeder blade by described reducing motor, material is carried out Stirring through uniform motion and sends into powder concentrator inside until arrive described material outlet, material is made finally to fall on described mill, thus achieve the technique effect of even pan feeding, simultaneously, cloth efficiency can be improved further, strengthen bed of material stability, and then ensure device security, reliably run.
In above-mentioned either a program preferably, comprise roller mill separator transmission system, described roller mill separator transmission system comprises variable-frequency motor, the second shaft coupling, mechanical reduction gear, the 3rd shaft coupling, spring bearing, power transmission shaft, bearing housing and dry oil pump, be connected by described second shaft coupling between described variable-frequency motor and mechanical reduction gear, be connected by described 3rd shaft coupling between described mechanical reduction gear and power transmission shaft, between described dry oil pump and spring bearing, be provided with grease channel.
Described spring bearing adopts control dry oil pump automatically to lubricate, by described dry oil pump according to setting parameter timing, quantitatively described spring bearing is lubricated, the compact conformation of described roller mill separator transmission system, safe and reliable, easy to maintenance, can significantly reduce equipment operation maintenance cost.
In above-mentioned either a program preferably, described spring bearing adopts multi-point support structure.
In above-mentioned either a program preferably, described power transmission shaft adopts high-precision real axle.
In above-mentioned either a program preferably, described bearing housing adopts totally enclosed type bearing housing.
In above-mentioned either a program preferably, comprise external shell, support frame and recirculation feed arrangement, described recirculation feed arrangement is fixedly mounted on described external shell by described support frame.
Described recirculation feed arrangement is the independent external circulatory system, the semi-product material needing again to mill can be sent in described roller mill separator and carry out mill to death by smoothly, ensureing that recycle stock has on the basis of better mobility, further enhance Matter Transfer utilization rate, also improve production efficiency simultaneously.
In above-mentioned either a program preferably, described recirculation feed arrangement comprises recirculation feed pipe, and the angle between described recirculation feed pipe and horizontal direction is 40 to 70 to spend.
In above-mentioned either a program preferably, rotor blade and guiding stator blade is comprised.
In above-mentioned either a program preferably, described rotor blade adopts upper and lower double layer design and is circumferentially evenly arranged.
In above-mentioned either a program preferably, described rotor blade comprises rotor and blade, and described blade adopts quarter bend hinged joint type, adopts bolted to support between described blade and described rotor, convenient maintenance, replacing.
The utility model, by the rotation of described blade, has effectively been separated thicker material particles, and make it pass through the described powder cone that returns and return in mill and mill, thus guarantee that qualified finished product passes through, separative efficiency also significantly improves thereupon.
In above-mentioned either a program preferably, the windward side of described blade adopts Wear-Resistant Compound Steel Plate manufacture, can improve the sherardizing steel ability of described blade, increase the working life of described blade.
In above-mentioned either a program preferably, described guiding stator blade comprises stator blade, base for supporting, upper flange and lower flange, described stator blade is bolted part and described base for supporting is fastenedly connected, the two ends up and down of described guiding stator blade are bolted part and are fastenedly connected with described upper flange and lower flange respectively and are circumferentially evenly arranged, thus form one-level split tunnel.
Defective for part thick material particles can be carried out pre-separation by described one-level split tunnel, and make all the other wind powder mixtures to be separated accelerate tangentially to enter rotor disengagement area, thus realize multi-stage, efficient separation, effectively increase the production of qualified material, further increase separative efficiency.
In above-mentioned either a program preferably, described stator blade adopts two-sided Wear-Resistant Compound Steel Plate manufacture, can improve sherardizing steel ability, increases blade service life, improves powder concentrator safety in operation.
In above-mentioned either a program preferably, top powder outlet device is comprised.
The utility model beneficial effect is compared with prior art: the utility model can be guaranteed that initial material is highly efficient and productive and enter in mill, and uniform distribution effectively prevents the feed pipe of material from blocking; Drive system structure characteristics of compact layout of the present utility model, safeguards simple, easy to operate, reduces production run cost; Moving-stator blade piece-rate system function admirable of the present utility model, abrasionproof is good, can not only guarantee roller mill separator safety, run efficiently, and significantly can improve equipment yield, also further increase the economic benefit that equipment runs simultaneously.
Accompanying drawing explanation
Fig. 1 is according to the structural representation with roller mill separator one preferred embodiment of side screw feeding device of the present utility model;
Fig. 2 is according to the structural representation with the embodiment illustrated in fig. 1 middle side screw feeding device of the roller mill separator of side screw feeding device of the present utility model;
Fig. 3 is according to the structural representation with the embodiment illustrated in fig. 1 middle roller mill separator transmission system of the roller mill separator of side screw feeding device of the present utility model;
Fig. 4 is according to the structural representation with the rotor blade embodiment illustrated in fig. 1 of the roller mill separator of side screw feeding device of the present utility model;
Fig. 5 is according to the structural representation with the embodiment illustrated in fig. 1 middle guiding stator blade of the roller mill separator of side screw feeding device of the present utility model;
Fig. 6 is according to the partial schematic diagram with the embodiment illustrated in fig. 1 middle stator blade mounting structure of the roller mill separator of side screw feeding device of the present utility model.
Description of reference numerals:
1 vertical mill casing; 2 times powder cones; 3 side screw feeding devices; 4 reducing motors; 5 hollow shafts; 6 screw feeder blades; 7 material inlets; 8 material outlets; 9 variable-frequency motors; 10 second shaft couplings; 11 mechanical reduction gears; 12 the 3rd shaft couplings; 13 spring bearings; 14 power transmission shafts; 15 bearing housings; 16 dry oil pumps; 17 rotor blades; 18 upper flanges; 19 guiding stator blades; 20 lower flanges; 21 base for supporting; 22 external shells; 23 top powder outlet devices; 24 stator blades; 25 recirculation feed arrangements; 26 mills.
Detailed description of the invention
In order to understand the utility model better, below in conjunction with specific embodiment, the utility model being elaborated, obviously can carry out different modification and remodeling to the utility model and not exceeding the wider spirit and scope of the utility model of appended claims.Therefore, following examples only have exemplary and hard-core implication.
Embodiment 1:
As shown in figures 1 to 6, a kind of roller mill separator with side screw feeding device, comprise back powder cone 2 and side screw feeding device 3, described roller mill separator bottom is provided with Vertical Mill, described Vertical Mill comprises vertical mill casing 1 and mill 26, described side screw feeding device 3 is fixedly mounted on described vertical mill casing 1 side, and ecto-entad runs through described vertical mill casing 1 respectively and returns powder cone 2, described side screw feeding device 3 is provided with material inlet 7 and material outlet 8, time powder described in described material outlet 8 is arranged in bores position directly over 2 centers and described mill 26 and Open Side Down, side screw feeding device 3 is provided with independently side-fed transmission component, described side-fed transmission component comprises reducing motor 4, hollow shaft 5 and screw feeder blade 6, reducing motor 4 is connected with hollow shaft 5 by the first shaft coupling, hollow shaft 5 periphery is provided with screw feeder blade 6, material inlet 7 is arranged on the front end of screw feeder blade 6 and opening upwards, material outlet 8 is arranged on the end of screw feeder blade 6, described side-fed transmission component makes the initial material entered from the material inlet 7 of front end after at the uniform velocity stirring, enter the inner also even drop down of roller mill separator smoothly to mill 26, comprise roller mill separator transmission system, described roller mill separator transmission system comprises variable-frequency motor 9, second shaft coupling 10, mechanical reduction gear 11, 3rd shaft coupling 12, spring bearing 13, power transmission shaft 14, bearing housing 15 and dry oil pump 16, be connected by the second shaft coupling 10 between variable-frequency motor 9 and mechanical reduction gear 11, be connected by the 3rd shaft coupling 12 between mechanical reduction gear 11 and power transmission shaft 14, grease channel is provided with between dry oil pump 16 and spring bearing 13, spring bearing 13 adopts multi-point support structure, power transmission shaft 14 adopts high-precision real axle, bearing housing 15 adopts totally enclosed type bearing housing, comprise external shell 22, support frame and recirculation feed arrangement 25, recirculation feed arrangement 25 is fixedly mounted on external shell 22 by described support frame, recirculation feed arrangement 25 comprises recirculation feed pipe, angle between described recirculation feed pipe and horizontal direction is 40 degree, to enable material enter roller mill separator inside by powder concentrator smoothly, to realize the recycling of material, comprise rotor blade 17 and guiding stator blade 19, on rotor blade 17 adopts, lower double layer design is also circumferentially evenly arranged, rotor blade 17 comprises rotor and blade, described blade adopts quarter bend hinged joint type, bolted is adopted to support between described blade and described rotor, the windward side of described blade adopts Wear-Resistant Compound Steel Plate manufacture, guiding stator blade 19 comprises stator blade 24, base for supporting 21, upper flange 18 and lower flange 20, stator blade 24 is bolted part and base for supporting 21 is fastenedly connected, the two ends up and down of guiding stator blade 19 are bolted part and are fastenedly connected with upper flange 18 and lower flange 20 and are circumferentially evenly arranged respectively, to form one-level split tunnel, stator blade 24 adopts two-sided Wear-Resistant Compound Steel Plate manufacture, comprise top powder outlet device 23.
Described roller mill separator transmission system passes through the second shaft coupling 10 driven gear deceleration device 11 by variable-frequency motor 9, mechanical reduction gear 11 is by driving power transmission shaft 14 to rotate by the 3rd shaft coupling 12 again after gears meshing conversion transmission direction, and then drive described rotor to rotate, and regulated the output speed of described rotor by the rotating speed controlling variable-frequency motor 9, thus realize the technique effect regulating finished product fineness of materials.
The utility model has guiding stator blade 19 and rotor blade 17, wind powder mixture is first through guiding stator blade 19, the defective coarse granule material of part is got back to roller mill separator inside and is again milled after stator blade 24 carries out pre-separation, remaining wind powder mixture to be selected accelerates the separated region tangentially entering described rotor under the effect of guiding stator blade 19 simultaneously, by described rotor, material is separated again, after the technological process of the multiple separation of this combined type, qualified finished product materials is drawn through top powder outlet device 23, finally realize the efficient separation function of described roller mill separator.
In order to realize automatic uniform feed, side of the present utility model screw feeding device 3 drives hollow shaft 5 to rotate by reducing motor 4, the many groups screw feeder blade 6 be fixed in hollow shaft 5 is rotated, thus drive material uniform motion forward, realize material and steadily reach material outlet 8 and finally fall on mill 26.
Described roller mill separator drive system structure is compact, and dry oil pump 16 is by lubricant passage way self-timing, quantitatively lubricate multi-point support bearing 13, and attended operation is simple, convenient, and operation expense is compared with low and workload is few.
Described rotor blade 17 adopts upper and lower double-deck cagelike structure, rotor blade 17 is quarter bend hinged joint type, because its windward side adopts wear-resistant composite steel plate material to make, thus there is stronger windproof powder erosion corrosion ability, significantly extend working life, and maintaining is convenient and workload is few, described blade is adopted and is bolted connection with for convenience detach and replacing, described rotor overall structure adopts high accuracy grade dynamic balance running, thus effectively prevent the operation of described rotor from swinging, and then improve security, the reliability of integral drive-system operation.
Described guiding stator blade 19 adopts the combining structure of stator blade 24 and base for supporting 21, described stator blade 24 adopts two-sided Wear-Resistant Compound Steel Plate material, overall antiscour corrosive nature is stronger, significantly can improve service life, base for supporting 21 is bending assembly, after stator blade 24 and base for supporting 21 are assembled, by bolted on circumferential flange and in being evenly arranged, thus define the wind powder passage that can produce tangential gas flow, effectively achieve the one-level separation function of guiding stator blade 19, this structure can also produce acceleration air-flow simultaneously, which further improves and selects powder operating efficiency.
Embodiment 2:
Have a roller mill separator for side screw feeding device, similar to embodiment 1, difference is, the angle between described recirculation feed pipe and horizontal direction is 55 degree.
Embodiment 3:
Have a roller mill separator for side screw feeding device, similar to embodiment 1, difference is, the angle between described recirculation feed pipe and horizontal direction is 70 degree.