A coal mine screening and impurity removing device for coal mining

Abstract

The present application relates to the field of coal screening, and discloses a coal mine screening and impurity removing device for coal mining, which comprises two supports and a stock bin mechanism arranged above the supports, a screening mechanism is arranged inside the stock bin mechanism, the screening mechanism comprises a rotating assembly arranged inside the stock bin mechanism, three groups of beating assemblies and three groups of screening assemblies are arranged outside the rotating assembly, a cleaning assembly is arranged inside the screening assembly, and an inner wall cleaning assembly is arranged on one side of the screening assembly. The cleaning assembly, which comprises a sliding plate and a cleaning soft rod, can effectively clean the screening net. In the screening process, the humid coal is easily adhered to the screening net, which causes the clogging of the screening net and affects the screening effect. When the sliding plate slides in the fixed frame, the cleaning soft rod is driven to clean the screening net, so that the humid adhered coal is cleaned, and the continuity and stability of the screening process are ensured, and the device is especially suitable for the screening of humid coal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal screening, in particular to a coal mine screening and impurity removing device for coal mining. BACKGROUND

[0002] In the patent application with the application publication number CN201911378935.2, a fixed frame is provided, the top of the fixed frame is fixedly connected with a conveying belt body, the outer wall of the conveying belt body is movably connected with a first roller shaft, the outer wall of the first roller shaft is movably connected with a first belt line, the top of the conveying belt body is fixedly connected with a first motor, and the output end of the first motor is movably connected with the inner wall of the conveying belt body through a shaft coupling. The coal mine screening machine for mining can disassemble the discharge plate, solves the problem that the coal mine screening machine for mining cannot clean the inside of the discharge port after screening, thereby reducing the working efficiency of the general coal mine screening machine, can clean the surface of the discharge plate, and does not cause the inside of the coal mine screening machine to be accumulated, thereby improving the working efficiency of the coal mine screening machine and meeting the use requirements of the coal mine screening machine.

[0003] In the above-mentioned patent, it is not possible to realize the screening of coal into multiple different states, and the moisture in the coal is large, which will affect the screening efficiency and block the screening net, affecting the work progress. SUMMARY

[0004] The present application aims to provide a coal mine screening and impurity removing device for coal mining to solve the problems in the background art.

[0005] To solve the above technical problems, the technical solution of the present application is as follows: a coal mine screening and impurity removing device for coal mining, comprising two supports and a stock bin mechanism arranged above the supports, a screening mechanism for screening coal is arranged inside the stock bin mechanism, the screening mechanism comprises a rotating assembly arranged inside the stock bin mechanism, three groups of beating assemblies and three groups of screening assemblies are arranged outside the rotating assembly, a cleaning assembly is arranged inside the screening assembly, and an inner wall cleaning assembly for cleaning the inside of the stock bin mechanism is arranged on one side of the screening assembly.

[0006] The rotating assembly comprises a small rotating wheel, a connecting rotating rod is fixedly connected to one end of the small rotating wheel, nine movable grooves are formed in the connecting rotating rod, and every three movable grooves form a group.

[0007] The beating assembly comprises a beating long rod rotatably connected in the movable groove, limit sliding grooves are formed on both sides of the beating long rod, a sliding frame is slidably connected to the outside of the beating long rod, limit sliding rods are fixedly connected to the inside of the sliding frame, and the limit sliding rods correspond to the limit sliding grooves.

[0008] As preferred, the screening assembly comprises a fixed frame fixedly connected to the outside of the connecting rotating rod, one side of the fixed frame is fixedly connected with a screening net, and sliding grooves are formed in the inside of the fixed frame.

[0009] As preferred, the cleaning assembly comprises a sliding plate slidingly connected in the sliding groove, a through hole is formed in the sliding plate, and a plurality of cleaning soft rods are fixedly connected to the side of the sliding plate facing the screening net.

[0010] As preferred, the inner wall cleaning assembly comprises a mounting groove formed in one end of the fixed frame, the mounting groove is an L-shaped groove, an L-shaped mounting rod is slidingly connected in the mounting groove, a cleaning brush is fixedly connected to one end of the L-shaped mounting rod, and the L-shaped mounting rod is fixedly arranged on one side of the mounting groove through bolts.

[0011] As preferred, the stock bin mechanism comprises a stock bin shell arranged on the support, connecting discs are fixedly connected to the two sides of the stock bin shell, a rotating wheel is fixedly connected to one side of one connecting disc, a feeding door is formed in the outside of the stock bin shell, and a rotating door is rotatably connected in the feeding door.

[0012] As preferred, the connecting rotating rod penetrates into the inside of the stock bin shell through the other connecting disc, and the connecting rotating rod is rotatably connected with the connecting disc and the stock bin shell.

[0013] As preferred, two connecting rods are fixedly connected between the two supports, the support is inverted V-shaped, a reinforcing rod is fixedly connected in the inside of the support, fixed discs are fixedly connected to the upper ends of the two supports, a large through hole is formed in one fixed disc, the connecting disc is rotatably connected with the large through hole, the connecting disc penetrates through the large through hole and is connected with the rotating wheel, a small through hole is formed in the other fixed disc, the connecting rotating rod is rotatable in the small through hole, and the connecting rotating rod is fixedly connected with the small rotating wheel through the small through hole.

[0014] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0015] (1) The stock bin mechanism is provided with a rotating assembly, a beating assembly, a screening assembly and a cleaning assembly, the cleaning assembly comprising a sliding plate and cleaning soft rods can effectively clean the screening net, in the screening process, the moist coal is easy to adhere to the screening net, causing the screening net to be blocked and affecting the screening effect, when the sliding plate slides in the fixed frame, the cleaning soft rods are driven to clean the screening net, removing the moist coal adhered thereto, this design not only avoids the blocking of the screening net, but also improves the screening efficiency and screening quality, ensuring the continuity and stability of the screening process, and is especially suitable for the screening of moist coal.

[0016] (2) The hitting assembly in the device can hit the fixed frame, so that the coal blocks on the fixed frame are scattered, and the coal adhering to the screening net will also be shaken off due to the hitting force. This design solves the problem that large coal and coal blocks bonded by moisture are difficult to pass through the screening net, further improves the screening effect, and through the action of the hitting assembly, the large coal can be scattered into smaller particles, so that it can pass through the screening net better, thereby realizing more fine screening, and also reducing the residue of coal blocks in the screening process, improving the thoroughness of screening;

[0017] (3) The device can divide the coal into three parts, i.e. large coal and impurities, small coal and powder coal, by setting three groups of screening nets with different hole diameters (large hole, medium hole and small hole screening nets). After screening is completed, different particle sizes of coal can be conveniently taken out through the rotating device, greatly improving the screening efficiency. In addition, this layered screening method also provides convenience for subsequent processes, for example, the screened coal can be directly classified and processed according to different purposes, reducing the complexity of subsequent processing and improving the efficiency and economy of the entire coal processing process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 is a schematic diagram of the support structure of the present application;

[0020] Figure 3 is a schematic diagram of the material bin mechanism structure of the present application;

[0021] Figure 4 is a schematic diagram of the screening mechanism structure of the present application;

[0022] Figure 5 is a schematic diagram of the rotating assembly structure of the present application;

[0023] Figure 6 is a schematic diagram of the hitting assembly structure of the present application;

[0024] Figure 7 is a schematic diagram of the screening assembly structure of the present application;

[0025] Figure 8 is a schematic diagram of the screening assembly structure of the present application;

[0026] Figure 9 is a schematic diagram of the inner wall cleaning assembly structure of the present application;

[0027] Figure 10 is a schematic diagram of the cleaning assembly structure of the present application.

[0028] In the figure: 1, support; 11, reinforcing rod; 12, connecting rod; 13, fixed disc; 14, large hole; 15, small hole; 2, bin mechanism; 21, bin shell; 22, connecting disc; 23, rotating wheel; 24, feeding door; 25, rotating door; 3, screening mechanism; 31, rotating assembly; 311, small rotating wheel; 312, connecting rotating rod; 313, movable slot; 32, beating assembly; 321, beating long rod; 322, limiting sliding slot; 323, sliding frame; 324, limiting sliding rod; 33, screening assembly; 331, fixed frame; 332, screening net; 333, sliding slot; 34, cleaning assembly; 341, sliding plate; 342, through hole; 343, cleaning soft rod; 35, inner wall cleaning assembly; 351, mounting slot; 352, cleaning brush; 353, L-shaped mounting rod. DETAILED DESCRIPTION

[0029] So that the objectives, technical solutions and superiorities of the embodiments of the present disclosure are more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all of the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of the present disclosure.

[0030] Unless otherwise defined, technical terms or scientific terms used in the present disclosure shall have the ordinary meaning of the terms to a person of ordinary skill in the art to which the present disclosure belongs. The similar words such as “comprise” or “include” and the like used in the present disclosure mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and other elements or objects are not excluded. The similar words such as “connect” or “connected” are not limited to physical or mechanical connection, but also include electrical connection, whether direct or indirect. “Up”, “down”, “left”, “right” and the like are only used to represent relative positional relationship, when the absolute position of the described object is changed, the relative positional relationship may also be changed accordingly.

[0031] As shown in Figures 1 to 10 The present application provides a coal mine screening and impurity removing device for coal mining, which comprises two supports 1 and a bin mechanism 2 arranged above the supports 1. The bin mechanism 2 is internally provided with a screening mechanism 3 for screening coal. The screening mechanism 3 comprises a rotating assembly 31 arranged inside the bin mechanism 2. Three groups of beating assemblies 32 and three groups of screening assemblies 33 are arranged outside the rotating assembly 31. The screening assembly 33 is internally provided with a cleaning assembly 34. An inner wall cleaning assembly 35 for cleaning the inside of the bin mechanism 2 is arranged on one side of the screening assembly 33.

[0032] The rotating assembly 31 comprises a small rotating wheel 311 connected with a driving device through a belt, and the small rotating wheel 311 is fixedly connected with a connecting rotating rod 312 at one end, and nine movable grooves 313 are arranged on the connecting rotating rod 312, and every three movable grooves 313 form a group.

[0033] The hitting assembly 32 comprises a hitting long rod 321 rotatably connected in the movable groove 313, and limiting sliding grooves 322 are arranged on both sides of the hitting long rod 321, and a sliding frame 323 is slidably connected outside the hitting long rod 321, and limiting sliding rods 324 are fixedly connected inside both sides of the sliding frame 323, and the limiting sliding rods 324 correspond to the limiting sliding grooves 322.

[0034] The screening assembly 33 comprises a fixed frame 331 fixedly connected outside the connecting rotating rod 312, and the fixed frame 331 is fixedly connected with a screening net 332 at one side, and sliding grooves 333 are arranged inside both sides of the fixed frame 331, and every group of fixed frames 331 is located between two groups of movable grooves 313, and the screening nets 332 on the three groups of screening assemblies 33 are respectively large-pore screening nets, medium-pore screening nets and small-pore screening nets.

[0035] The cleaning assembly 34 comprises a sliding plate 341 slidably connected in the sliding groove 333, and through holes 342 are arranged on the sliding plate 341, and a plurality of cleaning soft rods 343 are fixedly connected on one side of the sliding plate 341 facing the screening net 332.

[0036] The inner wall cleaning assembly 35 comprises a mounting groove 351 arranged at one end of the fixed frame 331, and the mounting groove 351 is an L-shaped groove, and an L-shaped mounting rod 353 is slidably connected in the mounting groove 351, and a cleaning brush 352 is fixedly connected at one end of the L-shaped mounting rod 353, and the L-shaped mounting rod 353 is fixedly arranged at one side of the mounting groove 351 through bolts.

[0037] The stock bin mechanism 2 comprises a stock bin shell 21 arranged on the support 1, and connecting discs 22 are fixedly connected at both sides of the stock bin shell 21, and a rotating wheel 23 is fixedly connected at one side of one connecting disc 22, and the rotating wheel 23 is connected with a driving device through a belt, and a feeding door 24 is arranged outside the stock bin shell 21, and a rotating door 25 is rotatably connected in the feeding door 24.

[0038] The connecting rotating rod 312 penetrates through the other connecting disc 22 into the inside of the stock bin shell 21, and the connecting rotating rod 312 is rotatably connected with the connecting disc 22 and the stock bin shell 21.

[0039] Two connecting rods 12 are fixedly connected between the two groups of the supports 1, the support 1 is inverted V-shaped, a reinforcing rod 11 is fixedly connected inside the support 1, the upper end of the two groups of the supports 1 is fixedly connected with a fixed disc 13, a large hole 14 is formed in the one fixed disc 13, a connecting disc 22 is rotatably connected with the large hole 14, and the connecting disc 22 penetrates through the large hole 14 and is connected with a rotating wheel 23, a small hole 15 is formed in the other fixed disc 13, a connecting rotating rod 312 is rotatable in the small hole 15, and the connecting rotating rod 312 penetrates through the small hole 15 and is fixedly connected with a small rotating wheel 311.

[0040] The working principle of the present application is as follows: when it is necessary to screen coal, the rotating door 25 is opened, and the coal is poured into the inside of the bunker shell 21 from the feeding door 24. At this time, the large-hole screening net 332 is located below the feeding door 24, and the coal falls on the large-hole screening net 332. The rotating door 25 is closed, the driving device drives the small rotating wheel 311 to rotate through the belt, the small rotating wheel 311 drives the connecting rotating rod 312 to rotate, the connecting rotating rod 312 drives the fixed frame 331 to rotate, and the fixed frame 331 drives the screening net 332 to rotate. At this time, the fixed frame 331 drives the coal in the bunker shell 21 to overturn through the screening net 332. The powder coal is blocked by the small-hole screening net 332 after passing through the large-hole screening net 332 and the medium-hole screening net 332. Some coal that is wet and bonded into blocks is blocked by the medium-hole screening net 332 after passing through the large-hole screening net 332. Only large coal blocks and impurities exist on one side of the large-hole screening net 332. When the fixed frame 331 is located above the inside of the bunker shell 21, the sliding plate 341 slides off from above the fixed frame 331 and contacts the connecting rotating rod 312. When the fixed frame 331 is located below the inside of the bunker shell 21, the sliding plate 341 slides away from the connecting rotating rod 312. In the process of sliding of the sliding plate 341, the sliding plate 341 drives the cleaning soft rod 343 to clean the screening net 332, so that the coal that is wet and adheres to the screening net 332 is cleaned away, the screening net 332 is prevented from being blocked by the wet coal, and the screening effect is affected.

[0041] When the connecting rotating rod 312 rotates, the beating long rod 321 rotates with the connecting rotating rod 312. When the beating long rod 321 is located directly above the inside of the bunker shell 21, the beating long rod 321 moves in the movable groove 313 at one end due to the setting of the sliding frame 323 and the reason of the center of gravity, and the other end of the beating long rod 321 falls on the other fixed frame 331 quickly, so that the fixed frame 331 is beaten, the coal blocks on the fixed frame 331 are scattered, and the coal that adheres to the screening net 332 is shaken off due to the beating force. The fixed frame 331 drives the cleaning brush 352 to abut against the inner wall of the bunker shell 21 when rotating, so that the coal that adheres to the inner wall of the bunker shell 21 is cleaned away.

[0042] After the screening is completed, the rotating door 25 is opened, at this time the large-hole screening net 332 is located below the feeding door 24, when the large-hole screening net 332 is flush with the bottom of the feeding door 24, the large pieces of coal and impurities on the large-hole screening net 332 are taken out through tools, then the small rotating wheel 311 drives the connecting rotating rod 312 to rotate again by 120 degrees, so that the medium-hole limiting sliding groove 322 is flush with the bottom of the feeding door 24, the small pieces of coal on the medium-hole screening net 332 are taken out through tools, then the driving equipment drives the rotating wheel 23 to rotate through the belt, the rotating wheel 23 drives the bin shell 21 to rotate through the connecting disc 22, so that the opening of the feeding door 24 faces downward, the collecting frame is placed below the feeding door 24, then the small rotating wheel 311 drives the connecting rotating rod 312 to rotate again, the small pieces of screening net 332 falls, the coal is screened into three parts, which facilitates the subsequent process.

[0043] The above examples are only exemplary embodiments of the present application and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements shall also be considered to fall within the protection scope of the present application.

Claims

1. A coal screening and impurity removal device for coal mining, comprising two supports (1) and a hopper mechanism (2) disposed above the supports (1), wherein the hopper mechanism (2) is provided with a screening mechanism (3) for screening coal, characterized in that: The screening mechanism (3) includes a rotating component (31) disposed inside the hopper mechanism (2). Three sets of striking components (32) and three sets of screening components (33) are disposed on the outside of the rotating component (31). A cleaning component (34) is disposed inside the screening component (33). An inner wall cleaning component (35) for cleaning the inside of the hopper mechanism (2) is disposed on one side of the screening component (33). The rotating assembly (31) includes a small rotating wheel (311), one end of which is fixedly connected to a connecting rotating rod (312). The connecting rotating rod (312) has nine movable slots (313), and every three movable slots (313) form a group. The striking assembly (32) includes a striking rod (321) rotatably connected in a movable groove (313). Limiting grooves (322) are provided on both sides of the striking rod (321). A sliding frame (323) is slidably connected to the outside of the striking rod (321). Limiting rods (324) are fixedly connected to both sides inside the sliding frame (323). The limiting rods (324) correspond to the limiting grooves (322). The screening component (33) includes a fixed frame (331) fixedly connected to the outside of the connecting rotating rod (312). A screening mesh (332) is fixedly connected to one side of the fixed frame (331). Sliding grooves (333) are opened on both sides inside the fixed frame (331). Each set of fixed frames (331) is located between two sets of movable grooves (313). The cleaning assembly (34) includes a sliding plate (341) slidably connected in a sliding groove (333), the sliding plate (341) having a through hole (342), and a plurality of cleaning rods (343) fixedly connected to the side of the sliding plate (341) facing the screen (332).

2. The coal mine screening and impurity removal device according to claim 1, characterized in that: The inner wall cleaning component (35) includes an installation groove (351) opened at one end of the fixed frame (331). The installation groove (351) is L-shaped. An L-shaped installation rod (353) is slidably connected in the installation groove (351). A cleaning brush (352) is fixedly connected to one end of the L-shaped installation rod (353). The L-shaped installation rod (353) is fixedly set on one side of the installation groove (351) by bolts.

3. A coal mine screening and impurity removal device according to claim 1, characterized in that: The hopper mechanism (2) includes a hopper shell (21) mounted on a bracket (1). Connecting discs (22) are fixedly connected to both sides of the hopper shell (21). A rotating wheel (23) is fixedly connected to one side of each connecting disc (22). A feeding door (24) is opened on the outside of the hopper shell (21). A rotating door (25) is rotatably connected inside the feeding door (24).

4. A coal mine screening and impurity removal device according to claim 3, characterized in that: The connecting rod (312) passes through another connecting disc (22) and enters the interior of the hopper shell (21). The connecting rod (312) is rotatably connected to the connecting disc (22) and the hopper shell (21).

5. A coal mine screening and impurity removal device according to claim 4, characterized in that: Two connecting rods (12) are fixedly connected between the two sets of brackets (1). The bracket (1) is inverted V-shaped. A reinforcing rod (11) is fixedly connected inside the bracket (1). A fixed plate (13) is fixedly connected to the upper end of the two sets of brackets (1). A large through hole (14) is opened on one of the fixed plates (13). The connecting plate (22) is rotatably connected to the large through hole (14). The connecting plate (22) passes through the large through hole (14) and is connected to the rotating wheel (23). A small through hole (15) is opened on the other fixed plate (13). The connecting rotating rod (312) rotates in the small through hole (15). The connecting rotating rod (312) passes through the small through hole (15) and is fixedly connected to the small rotating wheel (311).

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