Coal mine crushing device for coal mining

Abstract

The utility model discloses a coal mine crushing device for coal mining, and belongs to the technical field of coal mine crushing, the coal mine crushing device for coal mining comprises a crushing box, the top end of the crushing box is connected with a feed hopper in an embedded mode, according to the coal mine crushing device for coal mining, materials are fed into the crushing box through the feed hopper, and meanwhile an exhaust fan at one end of an air outlet pipe starts to work; dust overflowing from the feeding hopper can enter the purification box through the air inlet pipe and is preliminarily filtered through the filter screen, meanwhile, the spraying head sprays water flow conveyed through the water pipe to the surface of gas in the purification box for dust falling treatment, then the gas can be pumped out through the air outlet pipe, the purification treatment effect on the dust at the position of the crushing box is improved, and the service life of the crushing box is prolonged. Potential safety hazards are reduced to a certain extent, the using effect is improved, when the filter screen is blocked after being used for a long time, the pull rod can be pulled to drive the brush cylinder to brush and sweep the surface of the filter screen, and the using effect of the purifying box is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine crushing, and more specifically to a coal mine crushing device used in coal mine mining. Background Art

[0002] Coal is mined from coal fields and is mostly large in size. In order to facilitate transportation and use, the coal needs to be crushed.

[0003] The current coal mine mining uses coal mine crushing devices, such as the "A Coal Mine Crushing Device for Coal Mine Mining" proposed with patent number 202220279878.3, which includes a crushing chamber, a feed piece, a crushing roller, a crushing drive linkage, a reaction top block and a vibrating screening assembly, wherein the feed piece is arranged on the side wall of the crushing chamber, the reaction top block is arranged in a right-angled triangle structure and is arranged in contact with the top wall of the crushing chamber, the inclined surface of the reaction top block is arranged toward the feed piece, the crushing roller is provided with two groups and is rotatably arranged on the inner side wall of the crushing chamber, the crushing drive linkage is arranged on the crushing chamber and is connected to the two groups of crushing rollers, and the vibrating screening assembly is arranged in the crushing chamber and below the crushing roller; the utility model belongs to the field of coal mine crushing technology, and specifically refers to a coal mine crushing device for coal mine mining.

[0004] The existing coal mine exploitation uses a coal crushing device to stir and feed the coal in the feed hopper through spiral blades. Although it can prevent the feed hopper from being blocked and improve the use effect, in actual use, a large amount of dust will be filled in the air during the coal mine feeding process, and the coal blocks will cause a large area of ​​dust when being stirred, which can easily affect the health of surrounding workers to a certain extent. Therefore, it is urgent to improve the technology of the structure of the coal crushing device used in coal mine exploitation to improve this equipment. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a coal mine crushing device for coal mine exploitation, which can be used to put materials into the crushing box through the feed hopper when the coal mine exploitation is used, and at the same time, the exhaust fan at one end of the air outlet pipe starts working, so that the dust overflowing from the feed hopper can enter the purification box through the air inlet pipe and is preliminarily filtered by the filter. At the same time, the water flow transported by the sprinkler head through the water pipe is sprayed onto the gas surface inside the purification box for dust reduction treatment. After that, the gas can be extracted from the air outlet pipe, which improves the purification treatment effect of the dust at the crushing box, reduces safety hazards to a certain extent, and improves the use effect. When the filter is blocked after long-term use, the pull rod can be pulled to drive the brush cylinder to brush the surface of the filter, further improving the use effect of the purification box.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A coal mining crushing device for coal mining comprises a crushing box, a feed hopper is embedded at the top of the crushing box, a first crushing roller and a second crushing roller are rotatably connected inside the crushing box, a mounting groove is provided at the rotating shaft of the crushing box near the first crushing roller, a stirring paddle is arranged inside the feed hopper, the left end of the stirring paddle extends to the outside of the feed hopper and is rotatably connected to the feed hopper, the outside of the crushing box drives the first crushing roller, the second crushing roller and the stirring paddle to rotate through a transmission mechanism, a screen is fixedly connected to the inner wall of the crushing box, and the bottom of the crushing box is provided with a screen. A discharge port is provided in the middle of the end, a spiral feeder is provided on one side of the crushing box, a connecting pipe and a circulating feed pipe are connected between the spiral feeder and the crushing box, the connecting pipe is located above the screen, the circulating feed pipe is located above the first crushing roller, a purification box is provided on one side of the feed hopper, the purification box is placed on the top of the crushing box, an air inlet pipe is connected between the feed hopper and the purification box, an end of the purification box away from the air inlet pipe is connected to an air outlet pipe, and the other end of the air outlet pipe is connected to an exhaust fan, and the gas inside the purification box is purified by a purification mechanism.

[0010] Furthermore, the outer ends of the first crushing roller and the second crushing roller are fixedly connected with a plurality of evenly arranged saw teeth, and the saw teeth at the outer ends of the first crushing roller and the second crushing roller are staggered.

[0011] Furthermore, a mounting groove is provided at the inner wall of the crushing box, and the outer end of the rotating shaft of the first crushing roller is fixedly connected with a first cylindrical gear and a driving wheel, and the first cylindrical gear is rotatably connected in the mounting groove, and the outer end of the rotating shaft of the second crushing roller is fixedly connected with a second cylindrical gear, and the second cylindrical gear is rotatably connected in the mounting groove and meshingly connected with the first cylindrical gear, and the end of the rotating shaft of the first crushing roller is fixedly connected with a motor, and the outer end of the feed hopper is fixedly connected with a driven wheel, and a belt is sleeved on the outside of the driving wheel and the driven wheel, and the middle part of the side end of the driven wheel is fixedly connected to the end of the stirring paddle.

[0012] Furthermore, the screen is arranged to be inclined downward toward one side of the connecting pipe, the inner bottom wall of the crushing box is arranged to be inclined, and the inner bottom wall of the crushing box is arranged to be inclined downward toward one side of the discharge port.

[0013] Furthermore, a filter is provided in the purification box, a spray head is mounted on the inner top wall of the purification box, the top of the spray head is connected to a water pipe, the inner bottom of the purification box is slidably connected to a collection box, and the collection box can be moved out from the right side opening of the purification box, a brush cylinder is fitted on the bottom of the filter, a pull rod is connected to the outer end of the brush cylinder, the pull rod is mounted in the purification box, and the pull rod extends to the outside of the purification box and forms a sliding connection with the purification box.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) According to the utility model, the material is put into the crushing box through the feed hopper, and the exhaust fan at one end of the air outlet pipe starts to work at the same time, so that the dust overflowing from the feed hopper can enter the purification box through the air inlet pipe and be initially filtered by the filter. At the same time, the water flow transported by the sprinkler head through the water pipe is sprayed onto the gas surface inside the purification box to carry out dust reduction treatment. After that, the gas can be extracted from the air outlet pipe, thereby improving the purification effect of the dust at the crushing box, reducing safety hazards to a certain extent, and improving the use effect. In addition, when the filter is blocked after long-term use, the pull rod can be pulled to drive the brush barrel to brush the surface of the filter, thereby further improving the use effect of the purification box.

[0017] (2) In the utility model, when the motor is working, it can drive the first crushing roller to rotate, and at the same time, it can drive the first cylindrical gear and the driving wheel at the outer end of the first crushing roller to rotate together. The rotation of the first cylindrical gear drives the second crushing roller to rotate in the opposite direction through the meshing connection formed with the second cylindrical gear, so that the coal mine can be crushed by the first crushing roller and the second crushing roller, and the rotation of the driving wheel can drive the driven wheel to rotate together through the belt, thereby driving the stirring paddle to rotate together. The stirring paddle can stir the material in the feed hopper, which is beneficial to the dredging of the feed hopper, avoiding blockage, and facilitating use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the purification box of the utility model;

[0020] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] Description of the numbers in the figure:

[0022] 1. Crushing box; 2. Feed hopper; 3. First crushing roller; 4. Second crushing roller; 5. Mounting slot; 6. First cylindrical gear; 7. Second cylindrical gear; 8. Motor; 9. Driving wheel; 10. Driven wheel; 11. Belt; 12. Agitator; 13. Screen; 14. Discharge port; 15. Screw feeder; 16. Connecting pipe; 17. Circulating feed pipe; 18. Purification box; 19. Inlet pipe; 20. Filter; 21. Outlet; 22. Sprinkler head; 23. Collection box; 24. Brush cylinder; 25. Pull rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0024] Example:

[0025] See also Figure 1-3 A coal mining crushing device for coal mining includes a crushing box 1, a feed hopper 2 is embedded at the top of the crushing box 1, a first crushing roller 3 and a second crushing roller 4 are rotatably connected inside the crushing box 1, a mounting groove 5 is provided near the rotating shaft of the first crushing roller 3 of the crushing box 1, a stirring paddle 12 is arranged inside the feed hopper 2, the left end of the stirring paddle 12 extends to the outside of the feed hopper 2 and is rotatably connected to the feed hopper 2, the outside of the crushing box 1 drives the first crushing roller 3, the second crushing roller 4 and the stirring paddle 12 to rotate through a transmission mechanism, a screen 13 is fixedly connected to the inner wall of the crushing box 1, and a bottom middle portion of the crushing box 1 is provided. There is a discharge port 14, a screw feeder 15 is provided on one side of the crushing box 1, a connecting pipe 16 and a circulating feed pipe 17 are connected between the screw feeder 15 and the crushing box 1, the connecting pipe 16 is located above the screen 13, the circulating feed pipe 17 is located above the first crushing roller 3, a purification box 18 is provided on one side of the feed hopper 2, the purification box 18 is placed on the top of the crushing box 1, an air inlet pipe 19 is connected between the feed hopper 2 and the purification box 18, one end of the purification box 18 away from the air inlet pipe 19 is connected to an air outlet pipe 21, the other end of the air outlet pipe 21 is connected to an exhaust fan, and the gas inside the purification box 18 is purified by a purification mechanism.

[0026] The material is put into the crushing box 1 through the feed hopper 2, and the exhaust fan at one end of the air outlet pipe 21 starts working. The dust overflowing from the feed hopper 2 can enter the purification box 18 through the air inlet pipe 19 and be preliminarily filtered by the filter 20. At the same time, the water flow transported by the spray head 22 through the water pipe is sprayed onto the gas surface inside the purification box 18 for dust reduction treatment. After that, the gas can be extracted from the air outlet pipe 21, which improves the purification effect of the dust at the crushing box 1, reduces safety hazards to a certain extent, and improves the use effect. When the filter 20 is blocked after long-term use, the pull rod 25 can be pulled to make the pull rod 25 drive the brush cylinder 24 to brush the surface of the filter 20, further improving the use effect of the purification box 18.

[0027] See also Figure 1 and Figure 3 The outer ends of the first crushing roller 3 and the second crushing roller 4 are fixedly connected with a plurality of uniformly arranged saw teeth, and the saw teeth at the outer ends of the first crushing roller 3 and the second crushing roller 4 are staggered. A mounting groove 5 is provided at the inner wall of the crushing box 1. The outer end of the rotating shaft of the first crushing roller 3 is fixedly connected with a first cylindrical gear 6 and a driving wheel 9, and the first cylindrical gear 6 is rotatably connected in the mounting groove 5. The outer end of the rotating shaft of the second crushing roller 4 is fixedly connected with a second cylindrical gear 7, and the second cylindrical gear 7 is rotatably connected in the mounting groove 5 and meshes with the first cylindrical gear 6. The end of the rotating shaft of the first crushing roller 3 is fixedly connected with a motor 8, and the outer end of the feed hopper 2 is fixedly connected with a driven wheel 10, and a belt 11 is sleeved on the outer side of the driving wheel 9 and the driven wheel 10, and the middle part of the side end of the driven wheel 10 is fixedly connected to the end of the stirring paddle 12.

[0028] When the motor 8 is working, it can drive the first crushing roller 3 to rotate, and at the same time, it can drive the first cylindrical gear 6 and the driving wheel 9 at the outer end of the first crushing roller 3 to rotate together. The rotation of the driving wheel 9 can drive the driven wheel 10 to rotate together through the belt 11, thereby driving the stirring paddle 12 to rotate together. The stirring paddle 12 can stir the material in the feed hopper 2, which is beneficial to the dredging of the feed hopper 2, avoiding blockage, and facilitating use.

[0029] See also Figure 1-2The screen 13 is arranged to be tilted downward toward one side of the connecting pipe 16, the inner bottom wall of the crushing box 1 is arranged to be tilted, and the inner bottom wall of the crushing box 1 is arranged to be tilted downward toward one side of the discharge port 14. A filter 20 is arranged in the purification box 18, and a spray head 22 is arranged at the inner top wall of the purification box 18. The top of the spray head 22 is connected with a water pipe, and the inner bottom of the purification box 18 is slidably connected with a collection box 23, and the collection box 23 can be moved out from the right opening of the purification box 18. A brush cylinder 24 is attached to the bottom of the filter 20, and a pull rod 25 is connected to the outer end of the brush cylinder 24. The pull rod 25 is arranged in the purification box 18, and the pull rod 25 extends to the outside of the purification box 18 and forms a sliding connection with the purification box 18. When the filter 20 is blocked due to long-term use, the pull rod 25 can be pulled to make the pull rod 25 drive the brush cylinder 24 to brush the surface of the filter 20, thereby further improving the use effect of the purification box 18.

[0030] In the present invention, when the relevant technical personnel use the device, they put the material into the crushing box 1 through the feed hopper 2, and at the same time, the exhaust fan at one end of the air outlet pipe 21 starts to work, so that the dust overflowing from the feed hopper 2 can enter the purification box 18 through the air inlet pipe 19 and be initially filtered by the filter 20. At the same time, the water flow transported by the spray head 22 through the water pipe is sprayed onto the gas surface inside the purification box 18 to perform dust reduction treatment, and then the gas can be extracted from the air outlet pipe 21, thereby improving the purification effect of the dust at the crushing box 1, reducing safety hazards to a certain extent, and improving the use effect;

[0031] When the material enters the crushing box 1, the motor 8 starts working, and drives the first crushing roller 3 and the second crushing roller 4 to rotate through the transmission mechanism to crush the material. At the same time, it can drive the stirring paddle 12 to rotate together. The stirring paddle 12 can stir the material in the feed hopper 2, which is beneficial to the dredging of the feed hopper 2. After crushing, qualified materials flow into the discharge port 14 through the screen 13, and unqualified materials enter the screw feeder 15 through the connecting pipe 16. After passing through the screw feeder 15, they are re-put into the crushing box 1 through the circulating feed pipe 17 for secondary or multiple crushing, which improves the crushing effect of the crushing box 1 and is convenient to use.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mining crushing device for coal mining, comprising a crushing box (1), characterized in that: The top of the crushing box (1) is embedded with a feed hopper (2), and the inside of the crushing box (1) is rotatably connected with a first crushing roller (3) and a second crushing roller (4). The crushing box (1) is provided with a mounting groove (5) near the rotating shaft of the first crushing roller (3). A stirring paddle (12) is mounted inside the feed hopper (2), and the left end of the stirring paddle (12) extends to the outside of the feed hopper (2) and is rotatably connected with the feed hopper (2). The outside of the crushing box (1) drives the first crushing roller (3), the second crushing roller (4) and the stirring paddle (12) to rotate through a transmission mechanism. A screen (13) is fixedly connected to the inner wall of the crushing box (1), and a discharge port (14) is provided in the middle of the bottom end of the crushing box (1). ) is provided with a screw feeder (15) on one side, and a connecting pipe (16) and a circulating feed pipe (17) are connected between the screw feeder (15) and the crushing box (1), the connecting pipe (16) is located above the screen (13), and the circulating feed pipe (17) is located above the first crushing roller (3). A purification box (18) is provided on one side of the feed hopper (2), and the purification box (18) is placed on the top of the crushing box (1). An air inlet pipe (19) is connected between the feed hopper (2) and the purification box (18), and an end of the purification box (18) away from the air inlet pipe (19) is connected to an air outlet pipe (21), and the other end of the air outlet pipe (21) is connected to an exhaust fan. The gas inside the purification box (18) is purified by a purification mechanism.

2. A coal crushing device for coal mining according to claim 1, characterized in that: The outer ends of the first crushing roller (3) and the second crushing roller (4) are fixedly connected with a plurality of evenly arranged saw teeth, and the saw teeth at the outer ends of the first crushing roller (3) and the second crushing roller (4) are staggered.

3. A coal crushing device for coal mining according to claim 1, characterized in that: The transmission mechanism comprises a mounting groove (5), a first cylindrical gear (6), a second cylindrical gear (7), a motor (8), a driving wheel (9), a driven wheel (10) and a belt (11); the inner wall of the crushing box (1) is provided with a mounting groove (5); the outer end of the rotating shaft of the first crushing roller (3) is fixedly connected to the first cylindrical gear (6) and the driving wheel (9); the first cylindrical gear (6) is rotatably connected in the mounting groove (5); the outer end of the rotating shaft of the second crushing roller (4) is fixedly connected to the first cylindrical gear (6) and the driving wheel (9); A second cylindrical gear (7) is connected, the second cylindrical gear (7) is rotatably connected in the mounting groove (5) and is meshed with the first cylindrical gear (6), the end of the rotating shaft of the first crushing roller (3) is fixedly connected to a motor (8), the outer end of the feed hopper (2) is fixedly connected to a driven wheel (10), the outer part of the driving wheel (9) and the driven wheel (10) are sleeved with a belt (11), and the middle part of the side end of the driven wheel (10) is fixedly connected to the end of the stirring paddle (12).

4. A coal crushing device for coal mining according to claim 1, characterized in that: The screen (13) is arranged to be inclined downward toward one side of the connecting pipe (16), the inner bottom wall of the crushing box (1) is arranged to be inclined, and the inner bottom wall of the crushing box (1) is arranged to be inclined downward toward one side of the discharge port (14).

5. A coal crushing device for coal mining according to claim 1, characterized in that: The purification mechanism comprises a filter (20), a spray head (22), a collection box (23), a brush cylinder (24) and a pull rod (25); a filter (20) is arranged in the purification box (18); a spray head (22) is arranged on the inner top wall of the purification box (18); the top of the spray head (22) is connected to a water pipe; the inner bottom of the purification box (18) is slidably connected to the collection box (23); the collection box (23) can be removed from the right opening of the purification box (18); the bottom of the filter (20) is fitted with a brush cylinder (24); the outer end of the brush cylinder (24) is connected to the pull rod (25); the pull rod (25) is arranged in the purification box (18); the pull rod (25) extends to the outside of the purification box (18) and forms a slidable connection with the purification box (18).

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