Coal mine screening and impurity removing device for coal mining

Abstract

The invention relates to the field of coal screening, and discloses a coal mine screening and impurity removing device for coal mining, the coal mine screening and impurity removing device for coal mining comprises two supports and a stock bin mechanism arranged above the supports, a screening mechanism is arranged in the stock bin mechanism, and the screening mechanism comprises a rotating assembly arranged in the stock bin mechanism; and three sets of beating assemblies and three sets of screening assemblies are arranged on the outer side of the rotating assembly, a cleaning assembly is arranged in each screening assembly, and an inner wall cleaning assembly is arranged on one side of each screening assembly. The wet coal is easy to adhere to the screening net, so that the screening net is blocked, and the screening effect is influenced, while the sliding plate drives the cleaning soft rod to clean the screening net and clean the wet and adhered coal when sliding in the fixed frame, so that the continuity and the stability of the screening process are ensured, and the screening device is particularly suitable for screening the wet coal.

Description

Technical Field

[0001] The present invention relates to the technical field of coal screening, and specifically relates to a coal screening and impurity removing device for coal mining in coal mines. Background Technique

[0002] In the patent application with the publication number of CN201911378935.2, it includes a fixed frame. The top of the fixed frame is fixedly connected with a conveyor belt main body. The outer wall of the conveyor belt main body is movably connected with a first roller. The outer wall of the first roller is movably connected with a first belt line. The top of the conveyor belt main body is fixedly connected with a first motor. The output end of the first motor is movably connected with the inner wall of the conveyor belt main body through a coupling. This coal screening machine for mining can disassemble the discharge plate, solves the problem that the general coal screening machine for mining cannot clean the inside of the discharge port after screening coal, which will reduce the working efficiency of the general coal screening machine. It can clean the surface of the discharge plate, and will not cause the phenomenon of siltation inside the coal screening machine, and thus can improve the working efficiency of the coal screening machine and meet the use requirements of the coal screening machine.

[0003] In the above patent, it is impossible to screen coal into multiple different states, and the moisture in the coal is relatively large, which will affect the screening efficiency and block the screening mesh, affecting the work progress. Summary of the Invention

[0004] The purpose of the present invention is to provide a coal screening and impurity removing device for coal mining in coal mines to solve the problems raised in the above background technique.

[0005] To solve the above technical problems, the technical solution of the present invention is: A coal screening and impurity removing device for coal mining in coal mines includes two brackets and a silo mechanism arranged above the brackets. A screening mechanism for screening coal is arranged inside the silo mechanism. The screening mechanism includes a rotating component arranged inside the silo mechanism. Three groups of striking components and three groups of screening components are arranged outside the rotating component. A cleaning component is arranged inside the screening component. An inner wall cleaning component for cleaning the inside of the silo mechanism is arranged on one side of the screening component; The rotating component includes a small rotating wheel. One end of the small rotating wheel is fixedly connected with a connecting rotating rod. Nine movable grooves are opened on the connecting rotating rod. Every three of the movable grooves are in a group; The striking component includes a striking long rod rotatably connected in the movable groove. Limiting sliding grooves are opened on both sides of the striking long rod. A sliding frame is slidably connected to the outside of the striking long rod. Limiting sliding rods are fixedly connected to both sides inside the sliding frame. The limiting sliding rods correspond to the limiting sliding grooves.

[0006] Preferably, the screening component includes a fixed frame fixedly connected to the outer side of the connecting rotating rod. One side of the fixed frame is fixedly connected with a screening net. Sliding grooves are formed on both sides inside the fixed frame. Each group of the fixed frames is located between two movable grooves.

[0007] Preferably, the cleaning component includes a sliding plate slidably connected in the sliding groove. Through holes are formed in the sliding plate. A plurality of cleaning soft rods are fixedly connected to one side of the sliding plate facing the screening net.

[0008] Preferably, the inner wall cleaning component includes a mounting groove formed at one end of the fixed frame. The mounting groove is an L-shaped groove. An L-shaped mounting rod is slidably connected in the mounting groove. A cleaning brush is fixedly connected to one end of the L-shaped mounting rod. The L-shaped mounting rod is fixedly arranged on one side of the mounting groove through a bolt.

[0009] Preferably, the silo mechanism includes a silo shell arranged on the support. Connecting discs are respectively fixedly connected to both sides of the silo shell. A rotating wheel is fixedly connected to one side of one of the connecting discs. A feed door is formed on the outer side of the silo shell. A rotating door is rotatably connected in the feed door.

[0010] Preferably, the connecting rotating rod penetrates through the other connecting disc and enters the interior of the silo shell. The connecting rotating rod is rotatably connected to the connecting disc and the silo shell.

[0011] Preferably, two connecting rods are fixedly connected between the two groups of supports. The supports are in an inverted V shape. A reinforcing rod is fixedly connected inside the supports. Fixed discs are fixedly connected to the upper ends of the two groups of supports. A large through hole is formed in one of the fixed discs. The connecting disc is rotatably connected to the large through hole. The connecting disc penetrates through the large through hole and is connected to the rotating wheel. A small through hole is formed in the other fixed disc. The connecting rotating rod rotates in the small through hole. The connecting rotating rod penetrates through the small through hole and is fixedly connected to a small rotating wheel.

[0012] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) A rotating component, a striking component, a screening component and a cleaning component are arranged in the silo mechanism. By setting the cleaning component, including a sliding plate and cleaning soft rods, the screening net can be effectively cleaned. During the screening process, wet coal easily adheres to the screening net, resulting in the blockage of the screening net and affecting the screening effect. When the sliding plate slides in the fixed frame, it will drive the cleaning soft rods to clean the screening net, removing the wet and adhered coal. This design not only avoids the blockage of the screening net, but also improves the screening efficiency and quality, ensuring the continuity and stability of the screening process, and is especially suitable for the screening of wet coal. (2) The striking component in the device can strike the fixed frame, causing the coal blocks on the fixed frame to be scattered. At the same time, the coal adhering to the screening net will also be shaken off due to the striking force. This design solves the problem that large coal blocks and wet and adhered coal blocks are difficult to pass through the screening net, further improving the screening effect. Through the action of the striking component, large coal blocks can be scattered into smaller particles, enabling them to better pass through the screening net, thus achieving finer screening. At the same time, it can also reduce the residue of coal blocks during the screening process and improve the thoroughness of screening. (3) By setting three groups of screening nets with different pore sizes (large-hole, medium-hole, and small-hole screening nets), the device can divide the coal mine into three parts, namely large coal blocks and impurities, small coal blocks, and powdered coal. After the screening is completed, through the rotating device, it is convenient to take out the coal with different particle sizes respectively, 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 uses, reducing the complexity of subsequent processing and improving the efficiency and economy of the entire coal processing process. Brief Description of the Drawings

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the support structure of the present invention; Figure 3 It is a schematic diagram of the silo mechanism structure of the present invention; Figure 4 It is a schematic diagram of the screening mechanism structure of the present invention; Figure 5 It is a schematic diagram of the rotating component structure of the present invention; Figure 6 It is a schematic diagram of the striking component structure of the present invention; Figure 7 It is a schematic diagram of the screening component structure of the present invention; Figure 8 It is a partial structure schematic diagram of the screening component of the present invention; Figure 9 It is a schematic diagram of the inner wall cleaning component structure of the present invention; Figure 10 It is a schematic diagram of the cleaning component structure of the present invention.

[0014] In the figure: 1. Bracket; 11. Reinforcing rod; 12. Connecting rod; 13. Fixed disk; 14. Large through-hole; 15. Small through-hole; 2. Bin mechanism; 21. Bin shell; 22. Connecting disk; 23. Rotating wheel; 24. Feeding door; 25. Rotating door; 3. Screening mechanism; 31. Rotating assembly; 311. Small rotating wheel; 312. Connecting rotating rod; 313. Activity groove; 32. Striking assembly; 321. Striking long rod; 322. Limit sliding groove; 323. Sliding frame; 324. Limit sliding rod; 33. Screening assembly; 331. Fixed frame; 332. Screening net; 333. Sliding groove; 34. Cleaning assembly; 341. Sliding plate; 342. Through-hole; 343. Cleaning soft rod; 35. Inner wall cleaning assembly; 351. Installation groove; 352. Cleaning brush; 353. L-shaped installation rod. Detailed implementation manners

[0015] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Apparently, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0016] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The words such as "including" or "comprising" used in the present disclosure mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connection" or "connection" and other similar words are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0017] As Figures 1 to 10 As shown, the present invention provides a coal screening and impurity removing device for coal mining, including two brackets 1 and a bin mechanism 2 arranged above the brackets 1. A screening mechanism 3 for screening coal is arranged inside the bin mechanism 2. The screening mechanism 3 includes a rotating assembly 31 arranged inside the bin mechanism 2. Three groups of striking assemblies 32 and three groups of screening assemblies 33 are arranged outside the rotating assembly 31. A cleaning assembly 34 is arranged inside the screening assembly 33. 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; The rotating assembly 31 includes a small rotating wheel 311. The small rotating wheel 311 is connected to the driving device through a belt. One end of the small rotating wheel 311 is fixedly connected to a connecting rotating rod 312. Nine movable slots 313 are formed in the connecting rotating rod 312, and every three of the movable slots 313 form a group. The striking assembly 32 includes a striking long rod 321 rotatably connected in the movable slot 313. Limiting sliding slots 322 are formed on both sides of the striking long rod 321. A sliding frame 323 is slidably connected to the outside of the striking long rod 321. Limiting sliding rods 324 are fixedly connected to both sides inside the sliding frame 323, and the limiting sliding rods 324 correspond to the limiting sliding slots 322.

[0018] The screening assembly 33 includes a fixed frame 331 fixedly connected to the outside of the connecting rotating rod 312. A screening net 332 is fixedly connected to one side of the fixed frame 331. Sliding slots 333 are formed on both sides inside the fixed frame 331, and each group of the fixed frames 331 is located between two groups of the movable slots 313. The screening nets 332 on the three groups of screening assemblies 33 are a large-hole screening net, a medium-hole screening net, and a small-hole screening net respectively.

[0019] The cleaning assembly 34 includes a sliding plate 341 slidably connected in the sliding slot 333. Through holes 342 are formed in the sliding plate 341. A plurality of cleaning soft rods 343 are fixedly connected to one side of the sliding plate 341 facing the screening net 332.

[0020] The inner wall cleaning assembly 35 includes a mounting slot 351 formed at one end of the fixed frame 331. The mounting slot 351 is an L-shaped slot. An L-shaped mounting rod 353 is slidably connected in the mounting slot 351. A cleaning brush 352 is fixedly connected to one end of the L-shaped mounting rod 353. The L-shaped mounting rod 353 is fixedly arranged on one side of the mounting slot 351 through a bolt.

[0021] The bin mechanism 2 includes a bin housing 21 arranged on the bracket 1. Connecting discs 22 are respectively fixedly connected to both sides of the bin housing 21. A rotating wheel 23 is fixedly connected to one side of one of the connecting discs 22. The rotating wheel 23 is connected to the driving device through a belt. A feed door 24 is formed on the outside of the bin housing 21. A rotating door 25 is rotatably connected in the feed door 24.

[0022] The connecting rotating rod 312 penetrates through the other connecting disc 22 and enters the inside of the bin housing 21. The connecting rotating rod 312 is rotatably connected to the connecting disc 22 and the bin housing 21.

[0023] There are two connecting rods 12 fixedly connected between the two sets of brackets 1. The brackets 1 are in an inverted V shape. A reinforcing rod 11 is fixedly connected inside the brackets 1. The upper ends of the two sets of brackets 1 are fixedly connected with a fixed disk 13. A large through hole 14 is formed in one of the fixed disks 13. The connecting disk 22 is rotatably connected to the large through hole 14, and the connecting disk 22 passes through the large through hole 14 and is connected to the rotating wheel 23. A small through hole 15 is formed in the other fixed disk 13. The connecting rotating rod 312 rotates in the small through hole 15, and the connecting rotating rod 312 passes through the small through hole 15 and is fixedly connected to the small rotating wheel 311.

[0024] The working principle of the present invention: When screening coal mines is required, open the rotating door 25 and pour the coal from the feeding door 24 into the interior of the bin housing 21. At this time, the screening mesh 332 with large holes is located below the feeding door 24, and the coal falls on the screening mesh 332 with large holes. Close the rotating door 25. 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. The fixed frame 331 drives the screening mesh 332 to rotate. At this time, the fixed frame 331 drives the coal to flip in the bin housing 21 through the screening mesh 332. The powdered coal passes through the screening mesh 332 with large holes and the screening mesh 332 with medium holes and is then blocked by the screening mesh 332 with small holes. Some wet and agglomerated coal is blocked by the screening mesh 332 with medium holes after passing through the screening mesh 332 with large holes. Only larger coal blocks and impurities remain on one side of the screening mesh 332 with large holes. When the fixed frame 331 is above the interior of the bin housing 21, the sliding plate 341 slides down from above the fixed frame 331 and contacts the connecting rotating rod 312. When the fixed frame 331 is below the interior of the bin housing 21, the sliding plate 341 slides in a direction away from the connecting rotating rod 312. During the sliding process of the sliding plate 341, the sliding plate 341 drives the cleaning soft rod 343 to clean the screening mesh 332, so that the coal wet-adhered to the screening mesh 332 is cleaned off, preventing the screening mesh 332 from being blocked by the wet coal and affecting the screening effect. When the connecting rotating rod 312 rotates, the striking long rod 321 rotates with the connecting rotating rod 312. When the striking long rod 321 is directly above the interior of the bin housing 21, with the further rotation of the connecting rotating rod 312, due to the setting of the sliding frame 323 and the center of gravity, one end of the striking long rod 321 moves in the movable groove 313, and the other end of the striking long rod 321 quickly falls on another fixed frame 331 to strike the fixed frame 331, so that the coal blocks on the fixed frame 331 are scattered, and the coal adhered to the screening mesh 332 will be shaken off due to the striking force. When the fixed frame 331 rotates, it drives the cleaning brush 352 to fit with the inner wall of the bin housing 21 to clean the coal adhered to the inner wall of the bin housing 21. After the screening is completed, open the rotating door 25. At this time, the large-hole screening mesh 332 is located below the feeding door 24. When the large-hole screening mesh 332 is flush with the bottom of the feeding door 24, use tools to remove the large pieces of coal and impurities on the large-hole screening mesh 332. Subsequently, the small rotating wheel 311 drives the connecting rotating rod 312 to rotate 120 degrees again, so that the middle-hole limiting chute 322 is flush with the bottom of the feeding door 24. Use tools to remove the small pieces of coal on the middle-hole screening mesh 332. Subsequently, the driving device drives the rotating wheel 23 to rotate through the belt. The rotating wheel 23 drives the bin housing 21 to rotate through the connecting disk 22, so that the opening of the feeding door 24 faces downward. Place the collection box below the feeding door 24. Subsequently, the small rotating wheel 311 drives the connecting rotating rod 312 to rotate again, and the pulverized coal on the small-piece screening mesh 332 drops, screening the coal into three portions, which facilitates the subsequent processes.

[0025] The above embodiments are only exemplary embodiments of the present invention and are not used to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present invention.

Claims

1. A coal screening and impurity removal device for coal mining, comprising two supports (1) and a silo mechanism (2) arranged above the supports (1), wherein a screening mechanism (3) for screening coal is arranged inside the silo mechanism (2), characterized in that: The screening mechanism (3) comprises a rotating assembly (31) arranged inside the silo mechanism (2); three groups of striking assemblies (32) and three groups of screening assemblies (33) are arranged outside the rotating assembly (31); a cleaning assembly (34) is arranged inside the screening assembly (33); and an inner wall cleaning assembly (35) for cleaning the interior of the silo mechanism (2) is arranged on one side of the screening assembly (33); The rotating assembly (31) comprises a small rotating wheel (311), one end of the small rotating wheel (311) is fixedly connected to a connecting rotating rod (312), the connecting rotating rod (312) is provided with nine movable grooves (313), and every three movable grooves (313) form a group; The striking assembly (32) comprises a striking rod (321) rotatably connected in the movable groove (313), and limit sliding 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), and limit sliding rods (324) are fixedly connected to both sides of the inside of the sliding frame (323), and the limit sliding rods (324) correspond to the limit sliding grooves (322).

2. A coal mine screening and impurity removal device for coal mining according to claim 1, characterized in that: The screening assembly (33) comprises a fixed frame (331) fixedly connected to the outside of the connecting rotating rod (312); a screening net (332) is fixedly connected to one side of the fixed frame (331); sliding grooves (333) are provided on both sides of the interior of the fixed frame (331); and each group of the fixed frames (331) is located between two groups of movable grooves (313).

3. A coal mine screening and impurity removal device for coal mining according to claim 2, characterized in that: The cleaning assembly (34) comprises a sliding plate (341) slidably connected in the sliding groove (333), a through hole (342) being provided on the sliding plate (341), and a plurality of cleaning soft rods (343) being fixedly connected to one side of the sliding plate (341) facing the screening net (332).

4. A coal mine screening and impurity removal device for coal mining according to claim 3, characterized in that: The inner wall cleaning assembly (35) comprises a mounting groove (351) formed at one end of the fixing frame (331); the mounting groove (351) is an L-shaped groove; an L-shaped mounting rod (353) is slidably connected in the mounting groove (351); a cleaning brush (352) is fixedly connected to one end of the L-shaped mounting rod (353); and the L-shaped mounting rod (353) is fixedly arranged on one side of the mounting groove (351) by means of bolts.

5. The coal screening and impurity removal device for coal mining according to claim 1, characterized in that: The silo mechanism (2) comprises a silo shell (21) arranged on a bracket (1), the two sides of the silo shell (21) are respectively fixedly connected to connecting plates (22), one side of the connecting plate (22) is fixedly connected to a rotating wheel (23), a feed door (24) is provided on the outside of the silo shell (21), and a rotating door (25) is rotatably connected inside the feed door (24).

6. A coal screening and impurity removal device for coal mining according to claim 5, characterized in that: The connecting rotating rod (312) passes through another connecting disk (22) and enters the interior of the silo shell (21); the connecting rotating rod (312) is rotatably connected to the connecting disk (22) and the silo shell (21).

7. The coal screening and impurity removal device for coal mining according to claim 1, characterized in that: Two connecting rods (12) are fixedly connected between the two groups of brackets (1); the brackets (1) are in an inverted V shape; a reinforcing rod (11) is fixedly connected inside the brackets (1); a fixing plate (13) is fixedly connected to the upper ends of the two groups of brackets (1); a large through hole (14) is formed on one of the fixing 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 formed on the other of the fixing plates (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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