Coal mine cleaning and sorting device
By introducing two screening designs into the coal mine cleaning and sorting device, the screening plate and the movement of the screening plate and the screening plate are used to solve the problem of screening plate blockage in the existing device and improve the screening efficiency of the coal mine.
Patent Information
- Application Number
- CN202420903238.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-28
AI Technical Summary
The existing sorting device for coal pit mining and cleaning for coal mine production can easily lead to clogging of the screen plate during use, which will affect the screening efficiency.
A coal mine cleaning and sorting device is designed to screen the coal mine twice through screening plates and screening plates, and the driving components are used to drive the movement of screening plates and screening plates to achieve rapid screening of coal mines and avoid screening plates blockage.
Through the design of two screenings, the screening plate can be effectively avoided, the screening efficiency of coal mines can be improved, and the rapid and efficient sorting of coal mines can be ensured.
Smart Images
Figure CN222469791U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal mine processing, and more specifically to a coal mine cleaning and sorting device. Background Art
[0002] During the mining process, there are often many other impurities mixed with the coal blocks. Therefore, the coal blocks need to be cleaned by a cleaning device to obtain cleaner coal blocks, which are convenient for use after drying.
[0003] The existing coal pit mining and cleaning sorting device used in coal mine production drives the screening component to vibrate through a servo motor during use, thereby completing the screening of coal blocks. Larger coal blocks will accumulate inside the second sorting hood, and smaller coal blocks will be discharged through the discharge channel. However, when there are a lot of coal mines, the first sorting screen plate in the second sorting hood may be blocked, which may cause some coal blocks to fail to be screened out quickly, affecting the screening efficiency.
[0004] In summary, how to avoid clogging of the screen plate and improve screening efficiency is a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content
[0005] In view of this, the purpose of the utility model is to provide a coal mine cleaning and sorting device, which screens the coal mine twice through a sieve plate and a sub-sieve plate, thereby realizing rapid screening of the coal mine, avoiding clogging of the sieve plate, and improving screening efficiency.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A coal mine cleaning and sorting device, comprising:
[0008] The box body is a hollow structure, and a feed port is provided on the box body, and the feed port is used to pass coal into the box body;
[0009] A sieve plate is obliquely arranged inside the box and is provided with a plurality of through holes, and the sieve plate is used for primary screening of the coal;
[0010] A connecting cover is a hollow structure and is fixedly connected to the box body, and a coal passing hole is provided on a partition between the connecting cover and the box body;
[0011] A sub-screen plate, which is obliquely arranged inside the connecting cover and is also provided with a plurality of through holes, is arranged parallel to the sieve plate and is arranged at the lower side of the sieve plate, and is used to receive the coal on the sieve plate and perform secondary screening;
[0012] A cleaning component, disposed in the box and used for cleaning the coal mine;
[0013] A driving assembly is connected to the sieve plate and the sub-sieve plate, and the driving assembly is used to drive the sieve plate and the sub-sieve plate to screen the coal.
[0014] Preferably, the sieve plate includes a first sieve plate and a second sieve plate, the sub-sieve plate includes a first sub-sieve plate and a second sub-sieve plate, the first sieve plate, the second sieve plate, the first sub-sieve plate and the second sub-sieve plate are arranged parallel to each other, the second sieve plate is arranged below the first sieve plate, the second sub-sieve plate is arranged below the first sub-sieve plate, the connecting cover is provided with two discharge ports, and the first sub-sieve plate and the second sub-sieve plate are arranged corresponding to the two discharge ports.
[0015] Preferably, the coal passing holes are provided with two and the first sieve plate and the second sieve plate are arranged corresponding to the coal passing holes, the number of through holes on the second sieve plate is greater than the number of through holes on the first sieve plate, and the size of the through holes on the second sieve plate is smaller than the size of the through holes on the first sieve plate, the number of through holes on the second sub-sieve plate is smaller than the number of through holes on the first sub-sieve plate, and the size of the through holes on the second sub-sieve plate is smaller than the size of the through holes on the first sub-sieve plate.
[0016] Preferably, the driving assembly includes a first screening mechanism, a mounting frame and a second screening mechanism, the mounting frame is provided with a driving motor, the first screening mechanism and the second screening mechanism are both transmission-connected to the driving motor, the first screening mechanism is transmission-connected to the screen plate, and the second screening mechanism is transmission-connected to the sub-screening plate.
[0017] Preferably, the first screening mechanism includes a first gear, a second gear, a third gear, a rotating rod, a rotating disk, a connecting block, a fixed block, a connecting piece and an insert rod, a fixing plate is provided on the side of the box body, the first gear, the second gear and the third gear are all arranged on the fixing plate, the first gear and the third gear are both meshed with the second gear, the rotating rod is connected to the third gear, the first gear and the third gear are respectively connected to the two rotating disks, the connecting block and the fixed block are provided on the side of the rotating disk away from the rotating rod, the insert rod is slidably arranged on the fixing plate, the connecting piece is provided on the insert rod, the connecting piece is a strip-shaped ring structure, the fixed block is inserted into the connecting piece, and the rotation of the first gear and the third gear is used to drive the reciprocating motion of the insert rod.
[0018] Preferably, the second screening mechanism includes a first driving wheel, a first driven wheel, a second driven wheel, a second driving wheel, a first rotating rod, a second rotating rod and an eccentric block, the mounting frame is provided with two through holes, the first driving wheel is fixed to the rotating rod, the first rotating rod and the second rotating rod are arranged through the connecting cover, two eccentric blocks are provided, the eccentric blocks are semicircular structures and are fixed to the first rotating rod and the second rotating rod, the first driven wheel and the second driving wheel are both arranged on the second rotating rod, the second driven wheel is arranged on the first rotating rod, the first driving wheel is transmission-connected to the first driven wheel, and the second driven wheel is transmission-connected to the second driving wheel.
[0019] Preferably, a first drawer is provided at the bottom of the box body, a second drawer is provided at the bottom of the connecting cover, and filters are provided in the first drawer and the second drawer.
[0020] Preferably, the first drawer is connected with a connecting pipe, the connecting pipe is connected with a circulating water supply device, and the cleaning component is connected with the circulating water supply device.
[0021] The utility model provides a coal cleaning and sorting device, wherein a box body of the device is fixedly connected with a connecting cover, a coal passing hole is provided between the box body and the connecting cover, a sieve plate is provided in the box body, a sub-sieve plate is provided in the connecting cover, through holes are provided on the sieve plate and the sub-sieve plate, a cleaning component is provided in the box body, the sieve plate and the sub-sieve plate are both provided with through holes, the sieve plate and the sub-sieve plate are both connected with a driving component, the coal falls onto the sieve plate from a feed inlet, the driving component can drive the sieve plate to move, thereby performing a primary screening on the coal, since the sieve plate is tiltedly arranged inside the box body, the coal with a size larger than the through hole obtained after the primary screening moves along the sieve plate to the sub-sieve plate, the driving component drives the sub-sieve plate to perform a secondary screening on the coal, thereby avoiding blockage of the sieve plate and the sub-sieve plate, and the coal can be quickly screened out, thereby improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0023] Figure 1 This is a schematic diagram of the structure of the coal mine cleaning and sorting device provided by the utility model;
[0024] Figure 2 This is a structural schematic diagram of the coal mine cleaning and sorting device provided by the utility model from another perspective;
[0025] Figure 3 A schematic diagram of the internal structure of the coal mine cleaning and sorting device provided by the utility model;
[0026] Figure 4 This is a structural schematic diagram of the first screening mechanism of the coal mine cleaning and sorting device provided by the utility model.
[0027] Reference numerals:
[0028] 1-box; 2-connecting cover; 3-first screening mechanism; 301-first gear; 302-second gear; 303-third gear; 304-rotating rod; 305-turntable; 306-connecting block; 307-fixing block; 308-connecting piece; 309-insertion rod; 4-mounting frame; 5-second screening mechanism; 501-first driving wheel; 502-first driven wheel; 503-second driven wheel; 504-second driving wheel; 505-first rotating rod; 506-second rotating rod; 507-eccentric block; 6-first drawer; 7-first sieve plate; 8-second sieve plate; 9-first sub-sieve plate; 10-second sub-sieve plate; 11-second drawer; 12-connecting pipe. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] The core of the utility model is to provide a coal mine cleaning and sorting device, which can prevent the screening plate from being blocked and improve the screening efficiency.
[0031] It should be noted that the directions or positional relationships indicated by "front" and "rear" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.
[0032] The present application provides a coal mine cleaning and sorting device, comprising: a box body 1, a sieve plate, a connecting cover 2, a sieve plate, a cleaning component and a driving component;
[0033] The box body 1 is a hollow structure, and a feed port is provided on the box body 1, and the feed port is used to introduce coal into the box body 1. The box body 1 may be in the shape of a cuboid or a cylinder, and the shape is not limited. The coal in this article may also be regarded as a coal block.
[0034] The sieve plate is tilted inside the box 1 and is provided with a plurality of through holes. The sieve plate is used for primary screening of the coal. The angle between the sieve plate and the horizontal plane should be greater than ten degrees and less than thirty degrees. The specific angle needs to be specifically designed according to the size and roughness of the coal to ensure that the coal can be fully screened instead of directly rolling down the sieve plate to the sub-screen plate.
[0035] The connecting cover 2 is a hollow structure and is fixedly connected to the box body 1. A coal hole is provided on the partition between the connecting cover 2 and the box body 1. The shape of the connecting cover 2 can be a rectangular parallelepiped or a cylinder, and there is no specific limitation on the shape;
[0036] The sub-screen plate is obliquely arranged inside the connecting cover 2 and is also provided with a plurality of through holes. The sub-screen plate is arranged parallel to the sieve plate and arranged below the side of the sieve plate. The sub-screen plate is used to receive the coal on the sieve plate and perform secondary screening. Generally speaking, the size of the through holes on the sub-screen plate is different from that of the through holes on the sieve plate to achieve screening of coal of different sizes.
[0037] The cleaning component is arranged in the box body 1 and is used to clean the coal. Generally speaking, the cleaning component is arranged at the top of the box body 1 so that the coal can be cleaned after entering the box body 1.
[0038] The driving assembly is connected to the screen plate and the sub-screen plate, and the driving assembly is used to drive the screen plate and the sub-screen plate to screen the coal.
[0039] Specifically, the box body 1 is fixedly connected to the connecting cover 2, and a partition is arranged between the two, and a coal passing hole is arranged on the partition. The screen plate in the box body 1 is inclined, and a sub-screen plate which is also inclined is arranged in the connecting cover 2. The horizontal height of the sub-screen plate is lower than the horizontal height of the screen plate. After the coal enters the box body 1 from the feed port, it falls onto the screen plate. The coal slides down along the screen plate and falls onto the sub-screen plate from the coal passing hole. The driving component drives the screen plate and the sub-screen plate to reciprocate in the up and down direction or left and right direction, so that the screen plate and the sub-screen plate can screen the same batch of coal twice in succession, thereby quickly screening out the coal and improving the screening efficiency.
[0040] Optionally, the box body 1 and the connection cover 2 can be fixedly connected by welding, which is a simple connection method with low cost.
[0041] Optionally, the box body 1 and the connection cover 2 can be an integrated component to facilitate mass production.
[0042] On the basis of the above embodiment, the sieve plate includes a first sieve plate 7 and a second sieve plate 8, the sub-sieve plate includes a first sub-sieve plate 9 and a second sub-sieve plate 10, the first sieve plate 7, the second sieve plate 8, the first sub-sieve plate 9 and the second sub-sieve plate 10 are arranged parallel to each other, the second sieve plate 8 is arranged below the first sieve plate 7, the second sub-sieve plate 10 is arranged below the first sub-sieve plate 9, two discharge ports are provided on the connecting cover 2, and the first sub-sieve plate 9 and the second sub-sieve plate 10 are arranged corresponding to the two discharge ports.
[0043] Specifically, the first sieve plate 7, the second sieve plate 8, the first sub-sieve plate 9 and the second sub-sieve plate 10 are parallel to each other, the second sieve plate 8 is arranged below the first sieve plate 7, and the second sub-sieve plate 10 is arranged below the first sub-sieve plate 9, so that after the coal enters the box body 1 from the feed port, it is first screened by the first sieve plate 7, and the smaller coal falls on the second sieve plate 8, and the larger coal slides down along the first sieve plate 7 and falls on the first sub-sieve plate 9. After the first sub-sieve plate 9 screens the coal again, part of the coal falls on the second sub-sieve plate 10, and the remaining coal on the second sieve plate 8 after screening also falls along the second sieve plate 8 to the second sub-sieve plate 10 for final screening, and finally the coal is discharged from the two discharge ports, and there will be obvious differences in the sizes of the coal discharged from the two discharge ports.
[0044] On the basis of the above embodiment, two coal passing holes are provided and the first sieve plate 7 and the second sieve plate 8 are arranged corresponding to the coal passing holes, the number of through holes on the second sieve plate 8 is greater than the number of through holes on the first sieve plate 7, and the size of the through holes on the second sieve plate 8 is smaller than the size of the through holes on the first sieve plate 7, the number of through holes on the second sub-sieve plate 10 is smaller than the number of through holes on the first sub-sieve plate 9, and the size of the through holes on the second sub-sieve plate 10 is smaller than the size of the through holes on the first sub-sieve plate 9.
[0045] Specifically, the shapes of the first sieve plate 7, the second sieve plate 8, the first sub-sieve plate 9 and the second sub-sieve plate 10 need to be adapted to the cross-sectional shapes of the box body 1 and the connecting cover 2 respectively. The shapes of the coal holes and the discharge ports are preferably rectangular through holes. The size of the through holes on the second sieve plate 8 is smaller than the size of the through holes on the first sieve plate 7, and the size of the through holes on the second sub-sieve plate 10 is smaller than the size of the through holes on the first sub-sieve plate 9, so as to achieve the effect of multiple screening, so that the size of the coal after screening by the second sieve plate 8 and the second sub-sieve plate 10 located in the lower layer can be smaller than the size of the coal on the first sieve plate 7 and the first sub-sieve plate 9. The coal discharged through the two discharge ports can be collected and utilized separately due to their different sizes. Correspondingly, the number of through holes on the second sieve plate 8 is greater than the number of through holes on the first sieve plate 7, and the number of through holes on the second sub-sieve plate 10 is smaller than the number of through holes on the first sub-sieve plate 9, so as to improve the screening efficiency and avoid blockage.
[0046] In some embodiments, the driving assembly includes a first screening mechanism 3, a mounting frame 4 and a second screening mechanism 5. A driving motor is provided on the mounting frame 4. The first screening mechanism 3 and the second screening mechanism 5 are both connected to the driving motor by transmission. The first screening mechanism 3 is connected to the screen plate by transmission, and the second screening mechanism 5 is connected to the screening plate by transmission.
[0047] Specifically, the drive motor is used to provide power for the first screening mechanism 3 and the second screening mechanism 5, and drives the first screen plate 7 and the second screen plate 8 to reciprocate through the first screening mechanism 3, so as to screen the coal mine. The drive motor can drive the first sub-screen plate 9 and the second sub-screen plate 10 to reciprocate through the second screening mechanism 5 to perform secondary screening of the coal mine. The mounting frame 4 is an L-shaped sheet structure. The mounting frame 4 is arranged on the outer surface of the box body 1 and between the first screening mechanism 3 and the second screening mechanism 5. The drive motor is installed on the mounting frame 4 to achieve the effect of effectively transmitting power.
[0048] On the basis of the above embodiment, the first screening mechanism 3 includes a first gear 301, a second gear 302, a third gear 303, a rotating rod 304, a rotating disk 305, a connecting block 306, a fixing block 307, a connecting piece 308 and a plug rod 309. A fixing plate is provided on the side of the box body 1, and the first gear 301, the second gear 302 and the third gear 303 are all arranged on the fixing plate. The first gear 301 and the third gear 303 are both meshed with the second gear 302. The rotating rod 304 is connected to the Connected to the third gear 303, the first gear 301 and the third gear 303 are respectively connected to two turntables 305, and a connecting block 306 and a fixing block 307 are provided on the side of the turntable 305 away from the rotating rod 304. The insertion rod 309 is slidably arranged on the fixing plate, and a connecting piece 308 is provided on the insertion rod 309. The connecting piece 308 is a strip-shaped ring structure, and the fixing block 307 is inserted into the connecting piece 308. The rotation of the first gear 301 and the third gear 303 is used to drive the reciprocating motion of the insertion rod 309.
[0049] Specifically, as attached Figure 2 With attached Figure 4As shown, the fixed plate is a ⊥-shaped structure and is arranged on the side surface of the box body 1. A driving motor is arranged on the mounting frame 4. The output end of the driving motor is fixedly connected to the rotating rod 304. The other end of the rotating rod 304 is fixed with a third gear 303. The upper part of the third gear 303 is meshed with the second gear 302, and the upper part of the second gear 302 is meshed with the first gear 301. The first gear 301 and the third gear 303 are both fixedly connected to a rotating disk 305. The rotating disk 305 is embedded in the fixed plate. A connecting block 306 and a fixing block 307 are arranged on the side of the fixed plate away from the rotating rod 304. The fixing block 307 is arranged at the edge of the rotating disk 305. When the driving motor drives the rotating rod 304 to rotate, the third gear 303 rotates synchronously, thereby driving the second gear 302 to rotate. The second gear 302 can drive the first gear 301 to rotate. At this time, the first gear 301 and the third gear 303 have the same direction of rotation. When the first gear When the sizes of the turntable 305 corresponding to the third gear 301 and the third gear 303 are the same, the rotation trajectories of the fixed blocks 307 on the two turntables 305 are the same, and a vertical convex block is also provided on the fixed plate, and a plug rod 309 is provided on the convex block, and a strip-shaped ring-shaped connecting piece 308 is also provided on the plug rod 309. The fixed block 307 is inserted into the connecting piece 308. When the fixed block 307 makes a circular motion, the fixed block 307 makes an up and down reciprocating motion in the connecting piece 308, and the connecting piece 308 makes a reciprocating motion in the horizontal direction, so that the plug rod 309 can make a reciprocating motion in the horizontal direction. The two plug rods 309 are fixedly connected to the first sieve plate 7 and the second sieve plate 8 respectively, so that the first sieve plate 7 and the second sieve plate 8 can make a reciprocating motion in the horizontal direction to realize the initial screening of the coal mine. It should be noted that the movement trajectory of the first sieve plate 7 and the second sieve plate 8 in this process is determined by the right inner wall of the box body 1 (refer to the attached figure). Figure 3 The coal is then moved back and forth (in the direction of the center) to the coal hole on the left side of the box body 1, and then reciprocated to achieve the initial screening of the coal mine.
[0050] On the basis of the above embodiment, the second screening mechanism 5 includes a first driving wheel 501, a first driven wheel 502, a second driven wheel 503, a second driving wheel 504, a first rotating rod 505, a second rotating rod 506 and an eccentric block 507. Two through holes are provided on the mounting frame 4. The first driving wheel 501 is fixed to the rotating rod 304. The first rotating rod 505 and the second rotating rod 506 are arranged through the connecting cover 2. Two eccentric blocks 507 are provided. The eccentric blocks 507 are of a semicircular structure and are fixed to the first rotating rod 505 and the second rotating rod 506. The first driven wheel 502 and the second driving wheel 504 are both arranged on the second rotating rod 506. The second driven wheel 503 is arranged on the first rotating rod 505. The first driving wheel 501 is connected to the first driven wheel 502 in transmission connection, and the second driven wheel 503 is connected to the second driving wheel 504 in transmission connection.
[0051] Specifically, the first driving wheel 501 is sleeved on one end of the rotating rod 304 close to the mounting frame 4 and is fixedly connected to the rotating rod 304, so that the first driving wheel 501 can rotate synchronously with the rotating rod 304, and the first sub-screen plate 9 and the second sub-screen plate 10 in the connecting cover 2 are both provided with eccentric blocks 507 on the lower sides, and the two eccentric blocks 507 are respectively fixedly connected to the first rotating rod 505 and the second rotating rod 506, and the rotation of the first rotating rod 505 and the second rotating rod 506 can drive the eccentric blocks 507 to rotate. Since the eccentric blocks 507 are semicircular structures, the eccentric blocks 507 can drive the first sub-screen plate 9 and the second sub-screen plate 10 to rotate vertically with each rotation of the eccentric blocks 507. It makes reciprocating motion upward, thereby realizing secondary screening of coal mines. The first rotating rod 505 is located at the outer periphery of the connecting cover 2 and is fixed with the second driven wheel 503. The second rotating rod 506 is located at the outer periphery of the connecting cover 2 and is fixed with the first driven wheel 502 and the second driven wheel 503. The first driving wheel 501 is connected to the first driven wheel 502 through a transmission belt transmission. The first driven wheel 502 and the second driven wheel 503 are coaxially arranged and rotate synchronously. The second driving wheel 504 is connected to the second driven wheel 503 through a transmission belt transmission. The output end of the driving motor drives the eccentric block 507 by rotating the first driving wheel 501, thereby realizing secondary screening of coal mines.
[0052] Optionally, the shape of the eccentric block 507 may be a triangular prism or a quadrangular prism or other structures, and the specific structure needs to be selected and used according to the frequency of the reciprocating motion required for the sub-screen plate.
[0053] On the basis of the above embodiment, a first drawer 6 is provided at the bottom of the box body 1, a second drawer 11 is provided at the bottom of the connecting cover 2, and filters are provided in the first drawer 6 and the second drawer 11.
[0054] Specifically, the bottom inner wall of the box body 1 is plugged with a first drawer 6. The bottom inner wall of the connecting cover 2 is plugged with a second drawer 11. Filters are installed in the first drawer 6 and the second drawer 11. The cleaning assembly cooperates with the filter to clean the coal mine and improve the utilization rate of the coal mine.
[0055] On the basis of the above embodiment, the first drawer 6 is connected with a connecting pipe 12, the connecting pipe 12 is connected with the circulating water supply device, and the cleaning component is connected with the circulating water supply device.
[0056] Specifically, a connecting pipe 12 is fixedly connected to the first drawer 6, and the connecting pipe 12 is fixedly connected to the circulating water supply device. The other end of the connecting pipe 12 is fixedly connected to the top of the mounting part in the connecting cover 2, so that the cleaning water in the first drawer 6 can be easily recovered and centrally processed.
[0057] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0058] The above is a detailed introduction to a coal mine cleaning and sorting device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A coal mine cleaning and sorting device, characterized in that: include: The box body (1) is a hollow structure, and a feed port is provided on the box body (1), and the feed port is used to pass coal into the box body (1); A sieve plate, obliquely arranged inside the box (1) and provided with a plurality of through holes, the sieve plate being used for primary screening of the coal; The connecting cover (2) is a hollow structure and is fixedly connected to the box body (1); a coal passage hole is provided on a partition between the connecting cover (2) and the box body (1); A sub-screen plate, which is obliquely arranged inside the connecting cover (2) and is also provided with a plurality of through holes, the sub-screen plate is arranged parallel to the sieve plate and is arranged below the side of the sieve plate, and is used to receive the coal on the sieve plate and perform secondary screening; A cleaning component, arranged in the box (1) and used for cleaning the coal mine; A driving assembly is connected to the sieve plate and the sub-sieve plate, and the driving assembly is used to drive the sieve plate and the sub-sieve plate to screen the coal.
2. The coal mine cleaning and sorting device according to claim 1, characterized in that: The sieve plate comprises a first sieve plate (7) and a second sieve plate (8); the sub-sieve plate comprises a first sub-sieve plate (9) and a second sub-sieve plate (10); the first sieve plate (7), the second sieve plate (8), the first sub-sieve plate (9) and the second sub-sieve plate (10) are arranged parallel to each other; the second sieve plate (8) is arranged below the first sieve plate (7); the second sub-sieve plate (10) is arranged below the first sub-sieve plate (9); the connecting cover (2) is provided with two discharge ports; the first sub-sieve plate (9) and the second sub-sieve plate (10) are arranged corresponding to the two discharge ports.
3. The coal mine cleaning and sorting device according to claim 2, characterized in that: The coal-passing holes are provided with two and the first sieve plate (7) and the second sieve plate (8) are arranged corresponding to the coal-passing holes; the number of through holes on the second sieve plate (8) is greater than the number of through holes on the first sieve plate (7), and the size of the through holes on the second sieve plate (8) is smaller than the size of the through holes on the first sieve plate (7); the number of through holes on the second sub-sieve plate (10) is smaller than the number of through holes on the first sub-sieve plate (9), and the size of the through holes on the second sub-sieve plate (10) is smaller than the size of the through holes on the first sub-sieve plate (9).
4. The coal mine cleaning and sorting device according to claim 1, characterized in that: The driving assembly comprises a first screening mechanism (3), a mounting frame (4) and a second screening mechanism (5); the mounting frame (4) is provided with a driving motor; the first screening mechanism (3) and the second screening mechanism (5) are both drivingly connected to the driving motor; the first screening mechanism (3) is drivingly connected to the screening plate; and the second screening mechanism (5) is drivingly connected to the screening plate.
5. The coal mine cleaning and sorting device according to claim 4, characterized in that: The first screening mechanism (3) comprises a first gear (301), a second gear (302), a third gear (303), a rotating rod (304), a rotating disk (305), a connecting block (306), a fixing block (307), a connecting piece (308) and an inserting rod (309); a fixing plate is provided on the side of the box body (1); the first gear (301), the second gear (302) and the third gear (303) are all arranged on the fixing plate; the first gear (301) and the third gear (303) are both meshed with the second gear (302); the rotating rod (304) is connected to the third gear (303) The first gear (301) and the third gear (303) are respectively connected to the two rotating disks (305); the connecting block (306) and the fixing block (307) are provided on the side of the rotating disk (305) away from the rotating rod (304); the insertion rod (309) is slidably arranged on the fixing plate; the insertion rod (309) is provided with the connecting member (308); the connecting member (308) is a strip-shaped ring structure; the fixing block (307) is inserted into the connecting member (308); the rotation of the first gear (301) and the third gear (303) is used to drive the reciprocating motion of the insertion rod (309).
6. The coal mine cleaning and sorting device according to claim 5, characterized in that: The second screening mechanism (5) comprises a first driving wheel (501), a first driven wheel (502), a second driven wheel (503), a second driving wheel (504), a first rotating rod (505), a second rotating rod (506) and an eccentric block (507); the mounting frame (4) is provided with two through holes; the first driving wheel (501) is fixed to the rotating rod (304); the first rotating rod (505) and the second rotating rod (506) are arranged through the connecting cover (2); the eccentric block (507) is arranged There are two eccentric blocks (507), the eccentric blocks (507) are of a semicircular structure and are fixed to the first rotating rod (505) and the second rotating rod (506), the first driven wheel (502) and the second driving wheel (504) are both arranged on the second rotating rod (506), the second driven wheel (503) is arranged on the first rotating rod (505), the first driving wheel (501) is transmission-connected to the first driven wheel (502), and the second driven wheel (503) is transmission-connected to the second driving wheel (504).
7. The coal mine cleaning and sorting device according to any one of claims 1 to 6, characterized in that: A first drawer (6) is provided at the bottom of the box body (1), a second drawer (11) is provided at the bottom of the connection cover (2), and filter nets are provided in both the first drawer (6) and the second drawer (11).
8. The coal mine cleaning and sorting device according to claim 7, characterized in that: The first drawer (6) is connected to a connecting pipe (12), the connecting pipe (12) is connected to a circulating water supply device, and the cleaning component is connected to the circulating water supply device.