CN220092080U - Bidirectional arc screen structure for coal dressing - Google Patents

Abstract

The utility model provides a bidirectional arc screen structure for coal dressing, which comprises the following components: the box body is provided with a containing cavity, two sides of the box body are provided with opposite arc sieves, and one end of each arc sieve close to the bottom of the box body is provided with a discharge hole which is arranged at intervals to form the box body; the material distributing device is arranged in the box body and is positioned between the oppositely arranged arc-shaped sieves; the vibration mechanism is at least one and is connected with the side wall of the box body, and the box body is driven to vibrate when the vibration mechanism works so that the box body drives the material distributing device to swing. According to the utility model, two arc sieves are respectively arranged on two sides of the box body, and the distributing device is arranged in the box body, so that coal entering the box body is respectively guided onto the two arc sieves through the distributing device, and the vibrating device is arranged outside the box body, so that the box body drives the distributing device to swing through the vibrating device, and the coal partially blocked on the distributing device is dredged through vibration, so that the coal can be fully screened.

Description

Bidirectional arc screen structure for coal dressing

Technical Field

The utility model relates to the technical field of coal engineering, in particular to a bidirectional arc screen structure for coal dressing.

Background

The arc screen is a wet fine screening device with a screen surface in a circular arc shape. The screen surface is a section of arc surface and consists of screen bars, the direction of the screen bars is perpendicular to the moving direction of the slurry on the screen surface, and the slurry is divided into an oversize product and an undersize product in the process of moving along the screen surface. When the current sieve bend is in use, the splitter plate is easy to block, and part of coal is popped out from the sieve bend to cause the coal to directly fall off without screening, therefore, a bidirectional sieve bend structure for coal dressing is now proposed.

Disclosure of Invention

The utility model mainly aims to provide a bidirectional arc screen structure for coal dressing, which aims to solve the problem of blockage of a coal dressing device in the prior art.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a bidirectional curved screen structure for coal dressing, comprising: the box body is provided with a containing cavity, two sides of the box body are provided with opposite arc sieves, and one end of each arc sieve close to the bottom of the box body is provided with a discharge hole which is arranged at intervals to form the box body; the material distributing device is arranged in the box body and is positioned between the oppositely arranged arc-shaped sieves; the vibration mechanism is at least one and is connected with the side wall of the box body, wherein the box body is driven to vibrate when the vibration mechanism works, so that the box body drives the material distributing device to swing.

Further, the top of the box body is also provided with a feeding hopper which is communicated with the accommodating cavity.

Further, the feed divider includes: the two ends of the rotating shaft are respectively connected with the front side wall and the rear side wall of the box body in a rotating way through a shaft and a bearing; the baffle is two, and two baffles are relative to be set up in the both sides of pivot, and wherein, the level of the one end that two baffles are connected with the pivot is greater than the level of the baffle other end.

Further, the bidirectional arc screen structure for coal dressing further comprises: the leakage-proof device is arranged at the bottom of the distributing device and is fixed with the inner sides of the front side wall and the rear side wall of the box body; damping device, damping device are two, and two damping device set up in the both sides of box.

Further, the leakage preventing device includes: the front end and the rear end of the fixed column are respectively fixed with the front side wall and the rear side wall of the box body; the fixing plate is fixedly connected with the fixing column and is arranged below the fixing column; the two first limiting assemblies are arranged on two sides of the fixing plate, one ends of the two first limiting assemblies are connected with the fixing columns, and the other ends of the two first limiting assemblies are respectively connected with the two baffle plates in an abutting mode.

Further, the first spacing assembly includes: one end of the connecting rod is connected with the fixed column; the connecting rod is sleeved with one end of the first limiting pipe, the other end of the first limiting pipe is in butt joint with the baffle, a first limiting spring is arranged in the first limiting pipe, one end of the first limiting spring is connected with the connecting rod, and the other end of the first limiting spring is in butt joint with the first limiting pipe.

Further, the at least one shock absorbing device comprises: one end of the support column is connected with the box body; the other end of the support column is adhered with the rubber pad; the mounting panel, the upper surface of mounting panel is equipped with the rubber pad.

Further, the upper surface of mounting panel still is equipped with two limiting plates, and two limiting plates set up relatively, and partial rubber pad is located between two limiting plates and the mounting panel.

Further, be equipped with the spacing subassembly of second on the mounting panel lateral wall, the one end and the mounting panel fixed connection of the spacing subassembly of second, the other end and the arc screen butt of the spacing post of second.

Further, the second spacing assembly includes: the fixed rod, one end of the fixed rod is fixedly connected with the mounting plate; the other end of dead lever is located to the one end cover of second spacing pipe, and the other end and the arc screen butt of second spacing pipe are equipped with second spacing spring in the second spacing pipe, and second spacing spring one end is connected with the dead lever, and the second spacing spring other end and second spacing pipe butt.

By applying the technical scheme of the utility model, two arc sieves are respectively arranged on two sides of the box body, and the distributing device is arranged in the box body, so that coal entering the box body is respectively guided onto the two arc sieves through the distributing device, and the vibrating device is arranged outside the box body, so that the box body drives the distributing device to swing through the vibrating device, and the coal partially blocked on the distributing device is dredged through vibration, so that the coal can be sufficiently screened.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows a schematic structural view of a first embodiment of a bidirectional curved screen structure for coal dressing according to the present utility model;

FIG. 2 shows a schematic structural view of a second embodiment of a bidirectional curved screen structure for coal dressing according to the present utility model;

FIG. 3 shows a schematic structural view of a third embodiment of a bidirectional curved screen structure for coal dressing according to the present utility model;

FIG. 4 shows an enlarged schematic view of portion A of FIG. 3;

FIG. 5 shows an enlarged schematic view of portion B of FIG. 3;

fig. 6 shows a schematic structural view of an embodiment of a dispensing device according to the utility model.

Wherein the above figures include the following reference numerals:

10. a case; 101. a receiving chamber; 11. an arc screen; 12. a discharge port; 13. a feed hopper;

20. a material distributing device; 21. a rotating shaft; 22. a baffle;

30. a vibration mechanism;

40. a leakage preventing device; 41. fixing the column; 42. a first limit assembly; 421. a connecting rod; 422. a first limiting tube; 423. a first limit spring; 43. a fixing plate;

50. a damping device; 51. a support column; 52. a rubber pad; 53. a mounting plate; 54. a limiting plate; 55. the second limiting component; 551. a fixed rod; 552. the second limiting pipe; 553. and a second limit spring.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Exemplary embodiments according to the present utility model will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.

Referring to fig. 1 to 6, a bidirectional curved screen structure for coal dressing is provided according to an embodiment of the present utility model.

Specifically, a two-way sieve bend structure for coal preparation includes: the box body 10 is provided with a containing cavity 101, two opposite arc-shaped sieves 11 are arranged on two sides of the box body 10, and one end, close to the bottom of the box body 10, of each arc-shaped sieve 11 is provided with a discharge hole 12 which is arranged at intervals to form the box body 10; the material distributing device 20 is arranged in the box body 10 and is positioned between the oppositely arranged arc-shaped sieves 11; the vibration mechanism 30, at least one vibration mechanism 30 is connected with the side wall of the box 10, wherein, the vibration mechanism 30 drives the box 10 to vibrate when working, so that the box 10 drives the material distributing device 20 to swing.

In this embodiment, as shown in fig. 1 and fig. 2, two arc sieves are respectively arranged on two sides of the box body, and a distributing device is arranged in the box body, so that coal entering the box body is guided onto the two arc sieves respectively through the distributing device, and a vibrating device is arranged outside the box body, and the box body is vibrated by the vibrating device to enable the box body to drive the distributing device to swing, so that part of coal blocked on the distributing device is dredged through vibration, and the coal can be fully screened.

Further, a feeding hopper 13 is further arranged at the top of the box body 10, and the feeding hopper 13 is communicated with the accommodating cavity 101. In this embodiment, coal blocks are fed into the tank through a feed hopper 13.

As shown in fig. 6, the dispensing device 20 includes: the two ends of the rotating shaft 21 are respectively connected with the front side wall and the rear side wall of the box body 10 in a rotating way through a shaft and a bearing; the baffle plates 22 are two, and the two baffle plates 22 are oppositely arranged on two sides of the rotating shaft 21, wherein the horizontal height of one end of each baffle plate 22 connected with the rotating shaft 21 is larger than that of the other end of each baffle plate 22. In this embodiment, the vibration mechanism 30 is started to vibrate the box 10, drive the sieve bend 11 to vibrate together, the coal falling from the feed hopper 13 falls on the baffle 22, and under the action of the rotating shaft 21, the baffle 22 swings properly, so that the coal can slide off the baffles 22 on two sides without being blocked on the baffles 22, the coal falls on the sieve bend 11, the fine coal falls from the sieve bend 11, and the coarse coal falls from the discharge hole 12. Effectively improves the coal dressing efficiency and the coal dressing quality of the bidirectional arc screen structure for coal dressing.

As shown in fig. 4, the bidirectional curved screen structure for coal dressing further comprises: the leakage-proof device 40 is arranged at the bottom of the material distributing device 20, and the leakage-proof device 40 is fixed with the inner sides of the front side wall and the rear side wall of the box body 10; the number of damper 50 is two, and two damper 50 are provided on both sides of the case 10. Effectively prevents the case 10 from being inclined or falling down due to excessive vibration.

Further, the leakage preventing device 40 includes: the front and rear ends of the fixing column 41 are respectively fixed with the front and rear side walls of the box body 10; the fixed plate 43, the fixed plate 43 is fixedly connected with the fixed column 41, the fixed plate 43 is arranged below the fixed column 41; the first spacing subassembly 42, first spacing subassembly 42 is two, and two first spacing subassemblies 42 set up in fixed plate 43 both sides, and the one end and the fixed column 41 of two first spacing subassemblies 42 are connected, and the other end of two first spacing subassemblies 42 respectively with two baffles 22 butt. In this embodiment, the other ends of the two first limiting assemblies 42 are respectively abutted against the two baffles 22, so that the material separating device 20 is effectively prevented from swinging greatly due to overlarge vibration, and accordingly coal blocks are caused to directly flow into the discharge port 12 from the feed hopper 13, and the efficiency and quality of coal dressing are ensured.

Further, the first limiting assembly 42 includes: a connection rod 421, one end of the connection rod 421 being connected to the fixing column 41; the first spacing pipe 422, the other end of connecting rod 421 is located to the one end cover of first spacing pipe 422, and the other end and the baffle 22 butt of first spacing pipe 422 are equipped with first spacing spring 423 in the first spacing pipe 422, and first spacing spring 423 one end is connected with connecting rod 421, and the other end and the first spacing pipe 422 butt of first spacing spring 423. The baffle 22 can swing and reset in a small amplitude through the first limiting spring 423 when being arranged to swing left and right, so that coal blocks blocked on the leakage-proof device 40 can be shaken onto the arc screen 11 to perform full coal dressing, the leakage-proof device 40 can be prevented from directly falling due to excessive ferry, and the coal dressing efficiency of the coal dressing device is effectively improved.

As shown in fig. 3, the at least one shock absorbing device 50 includes: the support column 51, one end of the support column 51 is connected with the box 10; a rubber pad 52, the other end of the support column 51 being adhered to the rubber pad 52; the mounting panel 53, the upper surface of mounting panel 53 is equipped with rubber pad 52. This arrangement effectively prevents the case 10 from being damaged such as falling down due to a large vibration.

Further, two limiting plates 54 are further arranged on the upper surface of the mounting plate 53, the two limiting plates 54 are oppositely arranged, and a part of rubber pad 52 is located between the two limiting plates 54 and the mounting plate 53. The stability of the box 10 is ensured by the arrangement, and the phenomenon that the box swings greatly can not occur.

Specifically, a second limiting component 55 is arranged on the side wall of the mounting plate 53, one end of the second limiting component 55 is fixedly connected with the mounting plate 53, and the other end of the second limiting component 55 is abutted to the arc-shaped screen 11. In this embodiment, when the case 10 vibrates, the rubber pad 52 absorbs the vibration of the case 10, and the limiting plate 54 mounts the rubber pad 52, so as to avoid displacement of the rubber pad 52 and ensure stability of the case 10.

As shown in fig. 5, the second limiting assembly 55 includes: the fixed rod 551, one end of the fixed rod 551 is fixedly connected with the mounting plate 53; the second spacing pipe 552, the other end of dead lever 551 is located to the one end cover of second spacing pipe 552, and the other end and the arc screen 11 butt of second spacing pipe 552 are equipped with second spacing spring 553 in the second spacing pipe 552, and second spacing spring 553 one end is connected with dead lever 551, and the second spacing spring 553 other end and the butt of second spacing pipe 552. When the box 10 shakes, the arc screen 11 shakes and collides on the second limiting assembly 55, and under the action of the second limiting spring 553, the second limiting pipe 552 bounces to collide with the arc screen 11, so that the effect of shaking the arc screen 11 is better, and the collision of the arc screen 11 to the mounting plate 53 is reduced.

In another embodiment of the present utility model, the mounting plates 53 are fixed to the corresponding frames; the feeding is carried out from the feed hopper 13, the vibration mechanism 30 is started, the box body 10 is vibrated to drive the arc screen 11 to vibrate together, the baffle plates properly swing under the action of the material distributing device 20, so that the coal can slide off the baffle plates on two sides without being blocked on the baffle plates, the coal falls on the arc screen 11, the fine coal falls off the arc screen 11, and the coarse coal falls off the discharge hole 12; the baffle rotates and hits the first limiting component 42, and under the action of the first limiting spring 423, the baffle vibrates, excessive rotation of the baffle is avoided, shaking of coal is enhanced, and the screening effect is better; coal passing through the arc screen 11 jumps in the box 10 every day under the action of the vibration mechanism 30, and bounces back to the arc screen 11 after touching the fixed plate 43, so that part of coal is prevented from falling off without screening; when the box body 10 vibrates, the rubber pad 52 absorbs the vibration of the box body 10, and the limiting plate 54 is provided with the rubber pad 52 to avoid displacement of the rubber pad 52; when the box 10 shakes, the arc screen 11 shakes and collides on the second limiting assembly 55, and under the action of the second limiting spring 553, the second limiting pipe 552 bounces to collide with the arc screen 11, so that the effect of shaking the arc screen 11 is better, and the collision of the arc screen 11 to the mounting plate 53 is reduced.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the utility model, as generally described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the utility model.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. Two-way sieve bend structure for coal preparation, characterized by comprising:

the box body (10), the box body (10) is provided with a containing cavity (101), two sides of the box body (10) are provided with opposite arc sieves (11), and one end, close to the bottom of the box body (10), of each arc sieve (11) is provided with a discharge hole (12) which is arranged at intervals to form the box body (10);

the material distributing device (20) is arranged in the box body (10) and is positioned between the oppositely arranged arc-shaped sieves (11);

the vibration mechanism (30), at least one vibration mechanism (30) is arranged, at least one vibration mechanism (30) is connected with the side wall of the box body (10),

the vibration mechanism (30) drives the box body (10) to vibrate when working, so that the box body (10) drives the material distributing device (20) to swing.

2. The bidirectional arc screen structure for coal dressing according to claim 1, wherein a feed hopper (13) is further arranged at the top of the box body (10), and the feed hopper (13) is communicated with the accommodating cavity (101).

3. The bidirectional curved screen structure for coal dressing according to claim 1, wherein the material separating device (20) comprises:

the two ends of the rotating shaft (21) are respectively connected with the front side wall and the rear side wall of the box body (10) in a screwed mode through shafts and bearings;

baffle (22), baffle (22) are two, and two baffle (22) are relative set up the both sides of pivot (21), wherein, two baffle (22) with the level of the one end that pivot (21) is connected is greater than the level of baffle (22) other end.

4. The bi-directional curved screen structure for coal preparation of claim 3, further comprising:

the leakage-proof device (40) is arranged at the bottom of the distributing device (20), and the leakage-proof device (40) is fixed with the inner sides of the front side wall and the rear side wall of the box body (10);

the two damping devices (50) are arranged on two sides of the box body (10), and the two damping devices (50) are arranged on two sides of the box body.

5. The bi-directional sieve bend structure for coal dressing of claim 4, wherein said leak-proof means (40) comprises:

the front end and the rear end of the fixing column (41) are respectively fixed with the front side wall and the rear side wall of the box body (10);

the fixing plate (43), the fixing plate (43) is fixedly connected with the fixing column (41), and the fixing plate (43) is arranged below the fixing column (41);

the two limiting assemblies (42) are arranged on two sides of the fixing plate (43), one end of each limiting assembly (42) is connected with the fixing column (41), and the other end of each limiting assembly (42) is respectively abutted to the two baffle plates (22).

6. The bi-directional sieve bend structure for coal dressing of claim 5, wherein said first spacing assembly (42) comprises:

a connecting rod (421), wherein one end of the connecting rod (421) is connected with the fixed column (41);

the device comprises a connecting rod (421), a first limiting pipe (422), wherein one end of the first limiting pipe (422) is sleeved at the other end of the connecting rod (421), the other end of the first limiting pipe (422) is in butt joint with the baffle (22), a first limiting spring (423) is arranged in the first limiting pipe (422), one end of the first limiting spring (423) is connected with the connecting rod (421), and the other end of the first limiting spring (423) is in butt joint with the first limiting pipe (422).

7. The bi-directional sieve bend structure for coal dressing of claim 4, wherein at least one of said shock absorbing means (50) comprises:

the support column (51), one end of the support column (51) is connected with the box body (10);

a rubber pad (52), wherein the other end of the supporting column (51) is adhered to the rubber pad (52);

the mounting plate (53), the upper surface of mounting plate (53) is equipped with rubber pad (52).

8. The bidirectional arc screen structure for coal dressing according to claim 7, wherein the upper surface of the mounting plate (53) is further provided with two limiting plates (54), the two limiting plates (54) are oppositely arranged, and a part of the rubber pad (52) is positioned between the two limiting plates (54) and the mounting plate (53).

9. The bidirectional arc screen structure for coal dressing according to claim 8, wherein a second limiting assembly (55) is arranged on the side wall of the mounting plate (53), one end of the second limiting assembly (55) is fixedly connected with the mounting plate (53), and the other end of the second limiting assembly (55) is abutted to the arc screen (11).

10. The bi-directional sieve bend structure for coal dressing of claim 9, wherein the second spacing assembly (55) comprises:

the fixed rod (551), one end of the fixed rod (551) is fixedly connected with the mounting plate (53);

the second limiting pipe (552), the one end cover of second limiting pipe (552) is located the other end of dead lever (551), the other end of second limiting pipe (552) with arc screen (11) butt, be equipped with second spacing spring (553) in second limiting pipe (552), second spacing spring (553) one end with dead lever (551) are connected, second spacing spring (553) other end with second limiting pipe (552) butt.