DE1225571B - Sorting device for separating powdery and / or granular solid mixtures, in particular minerals - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. CL:

B03b

German class: Ia-Il

Number: 1225571

File number: M 63844 VI a / l a

Filing date: January 19, 1965

Opening day: September 29, 1966

The invention relates to a sorting device for Separation of powdery and / or granular solid mixtures, especially minerals, in the a container with the bottom sloping flat towards the center parallel to itself on a closed, horizontal one Web is moved in such a way that the mixture of substances introduced therein preferably with the addition of water separates in a lower heavy material layer and an overlying light material layer, with at least a heavy material outlet opening cut out in the middle area of the container bottom and at least one further lightweight material outlet opening is provided at a distance above the floor surface are.

In a known device of this type, the solid mixture to be separated is centered in the container introduced, whereby the heavy material exits through the central opening in the bottom, while the light material runs out over the outer upper edge of the container. The lightweight material outlet opening is therefore through the formed as a lightweight material overflow serving outer top edge of the container. The movement conditions of the Containers are chosen so that the lightweight material from the center of the container to the outside against the container shell migrates, while the heavy material moves in the opposite direction, i.e. H. to the middle of the container there, moved. The disadvantage of this known device is that the heavy material is insufficient long distance from the central pouring point of the solid mixture to the corresponding one, too centrally arranged heavy material outlet opening migrates to a sufficiently high degree to separate from lightweight material. The one when pouring the solid mixture accidentally under the heavy material Lying lightweight material therefore has no opportunity to separate from heavy material and is from this was carried away immediately through the heavy material outlet opening. On the other hand, it is possible that heavy particles be carried along by the centrifugal light material migrating outwards and over the outer overflow edge of the container will fall. The opposite movement of light and heavy materials leads to inevitable mutual disturbances and mixing phenomena in the boundary layer. The consequence of this is a low selectivity of this known device and a particularly high one Light material content in the heavy material emerging from the middle floor opening.

In another known separating device of the same type, the actual separating container consists of an annular channel, the solid mixture to be separated in the area of the outer circumference

Sorting device for the separation of
powdery and / or granular
Mixtures of solids, in particular minerals

Applicant:

Aldo Motosi, La Spezia (Italy)

Representative:

Dipl.-Ing. J. Buschhoff

and Dipl.-Ing. A. Hennicke, patent attorneys,

Cologne, Kaiser-Wilhelm-Ring 24

Named as inventor:

Aldo Motosi, La Spezia (Italy)

Claimed priority:

Italy of January 21, 1964 (1554)

edge of this annular channel is poured and the floated in the upper part of this channel Light material overflows over the inner circumferential edge of the annular groove, while the heavy material from the outer Circumferential area of the annular groove provided floor openings emerges. In this case, too, must the heavy material from the outer pouring point of the solid mixture to the immediately following, d. H. Also in the outer area of the annular channel, the heavy material outlet opening is so short Cover the path that no complete and satisfactory separation of the heavy material from Lightweight can be achieved.

In a known round hearth, the mixture of solids to be separated is placed in the center of an eccentric Track circulating hearth introduced, with the light material as a result of the hearth inclination and the water flow migrates outwards towards the edge of the hearth and overflows over the edge of the hearth, while the heavy material remains in a central, annular recess in the hearth. In this case, too the light material outlet opening is formed by the outer container edge serving as an overflow edge, while no heavy material outlet is provided at all. This separating device also has suffers from the same disadvantage of the other known separating devices described above, i. i.e., the one from Heavy material from the central pouring point of the solid mixture to be separated to the likewise almost

609 668/73

3 4

Central collecting point of the heavy material covered details of the invention result from the way is not long enough, in a single standing description of the passage of this way in the drawing, a complete or automatically shown embodiments,
sufficient separation of heavy and light material to F i g. 1 shows a sorter target in vertical section. In practice, the entire pouring or enrichment device remains according to the invention; tete solid mixture in the middle channel-shaped fig. 2 is a horizontal cross-section after the recess of the stove and the light material is line H-II of FIG. 1;

slowly gradually removed from this filling. 3 shows part of the in vertical section

wash until only the heavy material remains. The transmission;

The throughput of this separating device is therefore very limited. 4, 5, 6 and 7 show different designs

ring. In addition, this separating device has the aftermath of the outlet openings for the separated substances;

part of a batch, intermittent work- F i g. 8 shows a multi-stage in vertical section

wise, as there is no outlet opening for the continuous sorting or enrichment device after the

union discharge of the heavy material is provided. Of the discovery; - .....

in the middle, trough-shaped recess of the Her- 15 F i g. 9 shows a modified embodiment in elevation

of the retarded. Rather, heavy material must according to the device's shape.

Completion of each work process removed In the case of the FIG. 1 and 2 are shown ... "-" _ '"example, the device consists of a cylindrical

In all of the above-described, known container 1, which is flat, towards the center

Sorting devices of the type mentioned at the outset, 20 having sloping and, for example, conical bottoms2

so only a single component of the to The container bottom 2 is preferably exchangeable,

separating solid mixture, d. H. either only the one about its shape or inclination the various

Heavy material or just the light material to adapt to the entire radial conveying area.

Dimension of the circulating container, during which the container 1 is attached to a support frame 3, another component in the immediate vicinity of the inlet 25 which is moved in a horizontal plane parallel to the pouring point of the solid mixture from the container on a circular path. The co-exit or is accumulated. As a result, the center point A of the circular movement path of the Bekeine complete separation of the light material from the holder 1 is eccentric to the center of the heavy material, so that the separation process multiple container 1, as can be seen in particular from Fig. 2, must be repeated times in order to be satisfactory 30 is. The orbital movement of the container 1 can come up with results. any transmission can be achieved. In the dar-

The object of the invention is to provide the exemplary embodiment presented above is the support frame 3

th disadvantages of the known sorting devices of the container 1 on the vertical crank pin 4

to fix the type described at the beginning. mounted by three crank disks 5, which can be rotated on

According to the invention, this object is thereby arranged on the machine frame 6. The verti-, solves that the light material outlet opening is also in the kale shaft 54 of the crank disks 5 are preferably in the middle area of the container in the interface coupled with each other, for example with arranged between the heavy and light material layers with the help of belt or chain drives or with the help of net and in the upper part of the container a flat ver of gear drives 7. The one crank disk 5 divider cone is provided. . 40 is powered by a motor 8, preferably via a

In this arrangement, the introduction of a continuously variable gearbox and a belt drive 9 is therefore carried out

of the solid mixture to be separated is driven externally.

The bottom 2 of the container 1 has a central outflow opening 10, ie an inlet opening 10 directed towards the center of the container. The clear flow cross-section movement of both the heavy material and the light material 45 of this outlet opening 10 can optionally be closed off material and in connection with a central arrangement and set as large as desired, namely the voltage of both the heavy material and the light material z. B. with the help of a conical end member outlet opening. As a result, both the 11, which is mounted on a hand-operated lever 12 that can be held in place in various solid and light material in the entire radial positions. Width of the container bottom from the pouring point located in the outer 50 below the middle outlet opening 10 of the container area to the outlet opening located in the container bottom 2, a fixed discharge channel 13 is arranged in the middle of the container. At a distance above the bottom 2 of the BeGleichstrom pass through before they behave the container 1, in the middle area of the same or possible. This long path of the solid mixture and borne near the bottom center point B is a second, co-directional, by the way spiral, centripetal outlet opening 214, which is connected to the suction side of a pump P via a pipe 14 movement of the heavy and light material to be separated. The components of the same, cause a practically full pump P is shown schematically and can, for. B. constant separation of the solid mixture and one as a water jet pump or as another layer for promoting lower solid layer and an upper light material of sludge or solid-liquid mixture. The 60 emerging from the outlet openings 60 can be designed as a suitable pump. The pump P can have heavy and light materials as a result of which it is stationary and has a flexible high-percentage degree of purity, so that in many devices 114 it can be connected to the pipe or, in cases, a repetition of the separation process can also be stored on the support frame 3 of the container 1 is liquid. Furthermore, because the heavy matter and the will move and move together with it. Moving light material in the same direction occurs 65 The mixture of the two solids to be "separated" does not cause any disruptive mixing phenomena in the boundary layer of these two substances together with a sufficient amount of water, and their separation through the pipe 15 from above into "the Container 1 is also promoted. ' guided. Both substances of the mixture of substances can be pul-

5 6

deformed or granular, or can be the same or sucked and then the underlying

have a different grain size. The separating heavy material layer is separated through the floor opening 10.

tion of these substances in the device described.

occurs mainly due to the different heavy and light material outlet openings

specific weights. The device can be specially designed and arranged in different ways.

be useful for separating minerals or net. In the case of the FIGS. 4 and 5 shown

Ores from gangue rock are used. Embodiment is the discharge pipe 14 for the

The mixture to be separated is in the outer lightweight material through the significantly wider middle Ausren The area of the container 1 is introduced into this, and the opening 10 of the container bottom 2 is inserted into the container 1 introduced with as uniform a distribution as possible over the io. With this training the exit takes place Scope of the same. In the embodiment shown, the heavy material is replaced by the light material example is in the upper part of the container 1, a guide tube 14 formed around an annular gap. In the conical baffle 16 arranged, which almost the embodiment according to F i g. 6 is the whole lightweight material Cross-sectional area of the container 1 covers. guide tube 14 centrally and tightly through the container intermediate the baffle plate 16 and the container shell 15 carried out bottom 2, and around this pipe 14 around an annular gap is left free, and the guide are arranged in a ring in the container bottom 2 Sheet 16 is provided in places with the help of narrow Ste- holes 110 through which the heavy material gene attached to the container jacket. That from the exit. In the one shown in dashed lines in FIG the downwardly directed end of the feed pipe is the light material discharge 15 The outflowing solid-water mixture is connected with the pipe 14 laterally through the jacket of the container 1 in tig abandoned on the baffle 16 and falls laterally introduced this. The inner open end of this pipe through The one between the guide plate and the container res 14 is bent downwards and forms the one in FIG jacket provided annular gap in the outer loading interface between heavy and light material rich of the container 1st layer of lightweight material outlet opening 214. One

As a result of the movement of the container 1 on a training similar to that shown in FIG. 7 shown,
The discharge of the light material can take place by draining the solid mixture on the flat funnel conveyor or by simple drainage due to the shape of the bottom 2 of the container in an approximately spiral-shaped gravity. During suction, the light webs can be directed towards the center of the container bottom, ie fabric outlet opening 214 upwards (FIGS. 1 and 4), and with a centripetal movement 30 or downwards (FIG. 7) the suction pipe 14 to be closed in the middle area of the container 1 can be of any kind. At the same time there is a separation of the heavy running, ie it can also, for example, of material from the light material, the heavy material being introduced above the upper edge of the container 1 into this lower one and the light material an overlying upper one. In the case of a simple drain, form a layer. The whole is arranged in such a way that, on the other hand, the light material outlet opening 214 is directed towards the interface between the heavy material layer and above, and the adjoining outlet pipe 14 of the light material layer is approximately at the height that is higher horizontally or inclined downwards outwards,
The heavy material outlet opening 10 of the housing inlet opening 214 or something below this opening bottom 2 can preferably be exchanged and adjusted. This position of the interface between the heavy-weight layer, which can be adapted to the respective requirements, and the light-weight material layer can be provided by a suitable nozzle or the like.

The diameter of the circular movement speed and / or eccentricity AB of the path of the container 1, ie the eccentricity between the container movement and the free flow cross-section - the center point A of this circular path and the middle of the outlet opening 10, 14 in the steady state 45 ren container axis B can also be modified and stabilized. As a result, both can be adapted to the various requirements. Introduction of the mixture of substances into the container 1 as To this end, the crank pin 4 can be adjusted in the radial direction at 5 in the radial direction and held the outlet opening 10 and the suction of the light. In the one shown in FIG. 3 shown execution material through the higher outlet opening 214 50 example, the crank pin 4 is carried out on a slide in a continuous manner. The fixed by 104, the heavy material exiting in its bottom opening 10 falls onto the lower part of the enlarged radial groove of the channel 13 concerned and is displaceable through this from the device of the crank disk 5, but not removed. The channel 13 can of course be lifted. On the lower pipe, which is connected with an at least partially flexible section of the crank pin 4 and is provided with a thread, the outlet opening 10 is screwed in place of a clamping nut 17, which becomes the slide 104. in its adjustable position along the guide groove

However, the device can also hold intermittently. The crank pin 4 is freely rotatable

have an efficient working method, d. i.e., the container 1 passes through the support frame 3 of the container 1,

is used in each case with such a water and substance 60 The multi-level sorting and enrichment device

mixed amount filled that after the separation of the device according to F i g. 8 consists of several coaxially

Heavy material from light material, d. H. when the mutually arranged containers 1, each the same

whole amount of solids in the middle area of the loading container according to FIG. 1 and 2 formed and on

container bottom 2 has collected, the separating surface between a common support frame 3 are attached. That

see the heavy and light material layer in about 65 support frame 3 is also in this embodiment

the same height of the drain opening 214 to lie parallel to itself on an approximately horizontal,

comes. The lightweight material is then moved through the opening circular path. The festival to be separated

214 and the connected pipe 14.114 from the substance mixture is added with the addition of water by the

delivery pipe 15 and with the help of the conical Guide plate 16 introduced into the uppermost container 1. The heavy material that is in the middle on the floor 2 this container collects, falls through the corresponding outlet opening 10 onto the guide plate 16 of the underlying Container, while the light material layer, which forms over the heavy material, through the outlet pipe 14 is discharged from the device. Through the outlet opening 10 of the second container 1 falls the heavy material on the baffle 16 of the third, lowermost container 1, and the light material is again carried out from both the second and the third container. As a result, the heavy material accumulates progressively so that the emerging from the outlet opening 10 of the lowermost container Heavy material has an extraordinarily high degree of purity. The heavy material outlet openings 10 the various containers 1 are of course separated from one another in their free flow cross-section adjustable and adjustable, such as B. for the lower ao most container 1 is shown.

A progressive enrichment of the heavy material can also be achieved by a different similar series connection of two or more containers 1 according to FIG. 1 or by a cyclical return can be achieved in the same container of the emerging from its outlet opening 10 heavy material.

In Fig. 9 shows an embodiment in which a container 1 or a set of two or more Containers 1 arranged one above the other are suspended from a support frame 19 with the aid of ropes 18 or the like is and z. B. with the help of a motor 22 driven crank mechanism 20, 21 parallel to oscillates itself on a circular trajectory. The pin 20 of the crank disk 21 can attack directly on the swinging mounted container 1.

The solid mixture can together with the water through the same inlet pipe 15 into the container to be introduced. This is particularly the case if the mixture of substances before the separation or enrichment process treated with water or treated and z. B. is ground with the addition of water. However, it is also possible to put the solid mixture and the water separately from one another in the container 1 to introduce, e.g. B. the water through the inlet pipe 15 and the solid mixture with the help of another any loading device, for example a continuous conveyor, a bucket or spoon crane or the like

The self-contained, approximately horizontal movement path of the container 1 can be any of the circular shape deviating, z. B. elliptical, oval or other shape. The shape of this trajectory can also be chosen in such a way that a speed limit in one or more points and / or the change in direction of the container movement takes place or the container experiences a vibration. The jarring or shaking movement of the container can be in a vertical, horizontal or inclined direction take place and can, for. B. can be achieved in that the crank pin 4 has a certain radial play in the have relevant bearings of the support frame 3. In connection with its circular, horizontal movement can the container! also perform an up and down motion, d. H. in the vertical direction swing or vibrate. This vertical movement of the container can e.g. B. can be achieved by that the axes of the crankshaft shafts 54 and the crank pin 4 are inclined slightly to the vertical line are.

The sorting or enrichment device described can not only use the wet process, but also work in the dry process, d. that is, it is possible to use the powdered and / or to introduce granular substances in the dry or wet state into the container 1 without the addition of water.

Claims (9)

Patent claims: 1.Sorting device for the separation of powdery and / or granular solid mixtures, especially minerals, in which a container with a flat bottom sloping towards the center is parallel is moved to itself on a closed, horizontal path in such a way that the Mixture of substances introduced therein, preferably with the addition of water, in a lower layer of heavy material and an overlying layer of lightweight material separates, at least one of which is recessed in the central region of the container bottom Heavy material outlet opening and at least one further, located at a distance above the floor surface Light material outlet opening are provided, characterized in that the light material outlet opening (214) is also in the middle area of the container (1) in the interface between the heavy and light material layers and a flat distributor cone (16) is provided in the upper part of the container (1) is. 2. Sorting device according to claim 1, characterized in that the lightweight material outlet opening (214) directed upwards and with an outwardly downward sloping drain pipe (14,114) is connected. 3. Sorting device according to claim 1, characterized in that the top or downwardly directed lightweight material outlet opening (214) through a pipe (14,114) with the Suction side of a pump (P) for solid-liquid mixtures is connected. 4. Sorting device according to claims 1 to 3, characterized in that the lightweight material outlet line (14, 114) from below through the wider heavy material outlet opening (10) in the container (1) is inserted. 5. Sorting device according to claims 1 to 3, characterized in that the lightweight material outlet opening (14, 114) is introduced into the container (1) through the container bottom (2) next to the heavy material outlet opening (10). 6. Sorting device according to claims 1 to 3, characterized in that the lightweight material outlet line (14, 114) is inserted through or over the lateral jacket of the container (1) into the latter. 7. Sorting machine according to claims 1 to 6, characterized in that the drive for moving the container (1) on the horizontal, closed path with a Drive for simultaneous vertical vibrating, shaking or shaking movement or for speed and / or changes of direction is connected. 8. Sorting device according to claims 1 and 7, wherein the container on a carrier frame is attached that connects the vertical crank pins of at least two interconnected, rotatably driven cranks with each other, characterized in that the crank pins (4) are mounted on slides (104) adjustable and fixable in the radial direction in the relevant crank (5) . 9. Sorting device according to claims 1 to 6, characterized in that the through 10 Flow cross-section of the heavy material outlet opening (10) through exchangeable outflow nozzles, adjustable Terminating members (11) od. The like. Modifiable and adjustable. Documents considered: German Patent No. 86 528; British Patent No. 111685; U.S. Patent Nos. 1035 874, 1269198. 1 sheet of drawings