Noise reduction, crushing and screening integrated device for coal sample

Abstract

The utility model discloses a coal sample noise reduction crushing and screening integrated device, which relates to the technical field of coal sample manufacture and comprises a base, a convex chute is arranged in the base, a first convex block and a second convex block are slidably connected in the convex chute, and the top of the first convex block and the top of the second convex block are both connected with a support frame. Compared with the prior art, the noise reduction, crushing and screening integrated device for the coal samples has the beneficial effects that crushed coal samples which are not fully crushed can be guided into the conveying groove through the inclined screen, and are fed between the two crushing rollers again under the action of the conveying belt and the material hopper for repeated crushing, so that the frequency of manual feeding is reduced, the efficiency is improved, and the labor intensity of workers is reduced. And meanwhile, an eccentric cam is matched with deformation of a spring to push the treatment box to shake repeatedly, the screening and material guiding speed can be increased, a damping pad is installed at the bottom of the base, damping and buffering can be conveniently conducted on the device, and noise generated by vibration of the device and the ground is reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal sample preparation technology, specifically to an integrated device for noise reduction, crushing, and screening of coal samples. Background Technology

[0002] The preparation of coal samples includes procedures such as crushing, sieving, mixing, reducing and drying. The main purpose of crushing and sieving is to ensure the representativeness and uniformity of the coal sample, as well as to meet the needs of subsequent analysis or testing.

[0003] Application No. 202322010719.0 discloses an integrated device for crushing and screening coal samples in the laboratory. The device adjusts the distance between the first moving roller and the first fixed roller by adjusting the first roller distance adjustment device, thereby achieving crushing and screening of coal samples with different particle sizes, simplifying the coal sample crushing and screening process, saving time, and making the screening of coal samples more precise.

[0004] The screening structure described in the above application collects the coal sample fragments together and discharges them. It requires manual labor to put them back into the device for repeated crushing, which is inefficient. In addition, the vibration and noise generated during the coal sample crushing process will also affect the working environment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an integrated device for noise reduction, crushing, and screening of coal samples, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated device for noise reduction, crushing, and screening of coal samples, comprising a base, the interior of which is provided with a convex groove. A first convex block and a second convex block are slidably connected within the convex groove. Support frames are connected to the tops of both the first and second convex blocks. A processing box is mounted on the top of the two support frames. The processing box contains a crushing chamber and a screening chamber. A discharge port is located inside the processing box, between the crushing and screening chambers. Two crushing rollers are rotatably connected inside the crushing chamber. Two gears are rotatably connected to one side of the processing box via a rotating shaft. The two gears mesh with each other and are respectively connected to the two crushing rollers. The screening chamber is equipped with… The system includes a screen. Inside the processing box, on one side of the crushing and screening chambers, are a guide port and a feed port. Inside the processing box, on one side of the guide port and feed port, is a conveying trough. Inside the conveying trough, two rotating rollers are rotatably connected. A conveyor belt is sleeved on the outer side of the two rollers. A material hopper is connected to one side of the conveyor belt and fits into the conveying trough. A telescopic spring connects the convex chute and the first convex block. A pulley is rotatably connected to one side of the second convex block. Inside the convex chute, on one side of the pulley, is an eccentric cam. A third self-locking motor is installed on the top of the base, on one side of the convex chute. The output end of the third self-locking motor is connected to the eccentric cam. A shock-absorbing pad is installed on the bottom of the base.

[0007] Preferably, a first self-locking motor and a second self-locking motor are installed on the outer wall of the base, and the output ends of the first self-locking motor and the second self-locking motor are respectively connected to one of the crushing rollers and one of the rotating rollers.

[0008] Preferably, the processing box is equipped with a feed hopper and a discharge pipe, respectively, located inside the crushing chamber and at the top and bottom of the screening chamber, and a valve is installed on one side of the discharge pipe.

[0009] Preferably, a guide plate is connected inside the crushing chamber and at the top of both crushing rollers.

[0010] Preferably, an electric push rod is installed inside the screening chamber and at the top of the screen, and a baffle is connected to the output end of the electric push rod and on one side of the feed inlet.

[0011] Preferably, the bottom of both the first convex block and the second convex block is equipped with multiple auxiliary wheels.

[0012] Preferably, a controller is installed on one side of the convex groove and at the bottom of the second self-locking motor.

[0013] This utility model provides an integrated device for noise reduction, crushing, and screening of coal samples, which has the following beneficial effects:

[0014] 1. This coal sample noise reduction crushing and screening integrated device uses an inclined screen to guide insufficiently crushed coal sample fragments into a conveying trough. Under the action of the conveyor belt and material hopper, the fragments are fed again between two crushing rollers for repeated crushing. This helps reduce the number of times manual feeding is required and improves efficiency. At the same time, the eccentric cam, in conjunction with the deformation of the spring, pushes the processing box to shake repeatedly, which helps to speed up the screening and material guiding. Furthermore, the bottom of the base is equipped with shock-absorbing pads to facilitate shock absorption and reduce the noise generated by the device vibration and the ground.

[0015] 2. This coal sample noise reduction crushing and screening integrated device has a lifting baffle on one side of the feed inlet. Under the action of the electric push rod, the feed inlet can be opened or closed to prevent the coal sample fragments on the screen from being discharged before being fully screened. In addition, multiple sets of auxiliary wheels are installed at the bottom of the convex slider, which helps to reduce the friction between it and the convex chute, making its sliding smoother and reducing noise. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front sectional view of the present invention;

[0018] Figure 3 This is a top sectional view of the present invention;

[0019] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 5 This is a side view of the present invention.

[0021] In the diagram: 1. Base; 2. Convex chute; 3. First convex block; 4. Second convex block; 5. Support frame; 6. Processing box; 7. Crushing chamber; 8. Screening chamber; 9. Discharge port; 10. Crushing roller; 11. Gear; 12. Screen; 13. Guide port; 14. Feed port; 15. Conveying trough; 16. Rotating roller; 17. Conveyor belt; 18. Material hopper; 19. Telescopic spring; 20. Pulley; 21. Eccentric cam; 22. Third self-locking motor; 23. Shock-absorbing pad; 24. First self-locking motor; 25. Second self-locking motor; 26. Guide plate; 27. Feed hopper; 28. Discharge pipe; 29. ​​Auxiliary wheel; 30. Electric push rod; 31. Baffle; 32. Controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1 to 5This utility model provides a technical solution: an integrated device for noise reduction, crushing, and screening of coal samples, including a base 1. A convex groove 2 is provided inside the base 1. A first convex block 3 and a second convex block 4 are slidably connected inside the convex groove 2. Support frames 5 are connected to the tops of both the first convex block 3 and the second convex block 4. A processing box 6 is installed on the top of the two support frames 5. A crushing chamber 7 and a screening chamber 8 are provided inside the processing box 6. A discharge port 9 is provided inside the processing box 6, located between the crushing chamber 7 and the screening chamber 8. Two crushing rollers 10 are rotatably connected inside the crushing chamber 7. Two gears 11 are rotatably connected to one side of the processing box 6 via a rotating shaft. The two gears 11 mesh with each other and are respectively connected to the two crushing rollers 10. Under the action of 11, the two crushing rollers 10 are driven and rotated to squeeze and crush the coal sample. A screen 12 is installed inside the screening chamber 8 to facilitate sieving of the crushed coal sample. A guide plate 26 is connected inside the crushing chamber 7 and at the top of the two crushing rollers 10 to facilitate the centralized introduction of the coal sample between the two crushing rollers 10. A guide port 13 and a feed port 14 are respectively opened inside the processing box 6 on one side of the crushing chamber 7 and the screening chamber 8. A conveying trough 15 is opened inside the processing box 6 on one side of the guide port 13 and the feed port 14. Two rotating rollers 16 are rotatably connected inside the conveying trough 15. A conveyor belt 17 is sleeved on the outside of the two rotating rollers 16. A material hopper 18 is connected to one side of the conveyor belt 17. The feeding trough 15 fits, causing the material hopper 18 to circulate with the conveyor belt 17, scraping the coal sample in the feeding trough 15 and throwing it back into the crushing chamber 7 through the feed inlet 14, facilitating secondary crushing of the coal sample and making it more thoroughly crushed. A first self-locking motor 24 and a second self-locking motor 25 are installed on the outer wall of the base 1. The output ends of the first self-locking motor 24 and the second self-locking motor 25 are respectively connected to one of the crushing rollers 10 and one of the rotating rollers 16, providing power for the rotation of the crushing roller 10 and the rotating roller 16. A telescopic spring 19 connects the convex chute 2 and the first convex block 3. A pulley 20 is rotatably connected to one side of the second convex block 4. An eccentric cam 21 is rotatably connected inside the convex chute 2 and located on one side of the pulley 20. The cam 21 is extended... The deformation of the compression spring 19 causes the pulley 20 to move along with the rotation of the eccentric cam 21, pushing the second convex block 4 and the first convex block 3. The processing box 6 slides repeatedly, which helps to speed up the sieving of the coal sample by the screen 12. A third self-locking motor 22 is installed on the top of the base 1 and on one side of the convex chute 2. The output end of the third self-locking motor 22 is connected to the eccentric cam 21 to provide power for the rotation of the eccentric cam 21. An electric push rod 30 is installed inside the screening chamber 8 and on the top of the screen 12. A baffle 31 is connected to the output end of the electric push rod 30 and on one side of the guide port 13. The baffle 31 is raised and lowered under the action of the electric push rod 30 to control the opening and closing of the guide port 13. This helps to prevent the broken material on the screen 12 from being introduced into the conveying trough 15 before it has been fully sieved.Multiple auxiliary wheels 29 are installed at the bottom of both the first convex block 3 and the second convex block 4, which helps to reduce friction between the first convex block 3 and the second convex block 4 and the convex chute 2, making their sliding smoother and reducing noise. A shock-absorbing pad 23 is installed at the bottom of the base 1 to facilitate shock absorption and reduce vibration and noise generated by the device. Inside the processing box 6, at the top of the crushing chamber 7 and the bottom of the screening chamber 8, a feed hopper 27 and a discharge pipe 28 are respectively connected. A valve is installed on one side of the discharge pipe 28 to facilitate the feeding and discharge of coal samples. A controller 32 is installed on one side of the convex chute 2, at the bottom of the second self-locking motor 25.

[0024] In summary, in use, the coal sample noise reduction crushing and screening integrated device allows the coal sample to enter the crushing chamber 7 through the feed hopper 27. It is then guided by two guide plates 26 between two rotating crushing rollers 10. After being crushed by the crushing rollers 10, the sample enters the screening chamber 8, where it is sieved by the screen 12. Simultaneously, the third self-locking motor 22 drives the eccentric cam 21 to rotate. With the first convex block 3 and the second convex block 4 slidably connected to the convex groove 2, and a telescopic spring 19 connecting the first convex block 3 and the convex groove 2, the pulley 20 on one side of the second convex block 4, along with the rotation of the eccentric cam 21, pushes the second convex block 4 and its top support frame 5 to move, thus displacing the processing box 6 and... The screen 12 shakes repeatedly to sieve the crushed material. Qualified coal sample crushed material is collected in the screening chamber 8 and then discharged through the discharge pipe 28. Larger crushed material remains on the screen 12. After a period of time, the electric push rod 30 drives the baffle 31 to rise and open the guide port 13. The crushed material on the screen 12 enters the conveying trough 15 in the processing box 6 at an inclined angle. At this time, the second self-locking motor 25 drives the rotating roller 16 to rotate, causing the conveyor belt 17 to run. The material hopper 18 on one side of the conveyor belt 17 moves with the circulation, scraping up the crushed material in the conveying trough 15 and throwing it back into the crushing chamber 7 through the feed port 14. The guide plate 26 guides it a second time between the two crushing rollers 10 for secondary crushing.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coal sample noise reduction crushing and screening integrated device, comprising a base (1), characterized in that: The base (1) has a convex groove (2) inside. A first convex block (3) and a second convex block (4) are slidably connected inside the convex groove (2). A support frame (5) is connected to the top of the first convex block (3) and the second convex block (4). A processing box (6) is installed on the top of the two support frames (5). A crushing chamber (7) and a screening chamber (8) are opened inside the processing box (6). A discharge port (9) is opened inside the processing box (6) between the crushing chamber (7) and the screening chamber (8). Two crushing rollers (10) are rotatably connected inside the crushing chamber (7). Two gears (11) are rotatably connected to one side of the processing box (6) through a rotating shaft. The two gears (11) mesh with each other and are respectively connected to the two crushing rollers (10). A screen (12) is installed inside the screening chamber (8). A guide is opened inside the processing box (6) on one side of the crushing chamber (7) and the screening chamber (8). The material inlet (13) and the feed inlet (14) are connected. Inside the processing box (6) and on one side of the material inlet (13) and the feed inlet (14), a conveying trough (15) is provided. Inside the conveying trough (15), two rotating rollers (16) are rotatably connected. A conveyor belt (17) is sleeved on the outside of the two rotating rollers (16). A material hopper (18) is connected to one side of the conveyor belt (17). The material hopper (18) fits into the conveying trough (15). The convex chute (2) and the first convex block (3) A telescopic spring (19) is connected between them. A pulley (20) is rotatably connected to one side of the second convex block (4). An eccentric cam (21) is rotatably connected inside the convex groove (2) and on one side of the pulley (20). A third self-locking motor (22) is installed on the top of the base (1) and on one side of the convex groove (2). The output end of the third self-locking motor (22) is connected to the eccentric cam (21). A shock-absorbing pad (23) is installed at the bottom of the base (1).

2. The integrated device for noise reduction, crushing, and screening of coal samples according to claim 1, characterized in that: The outer wall of the base (1) is equipped with a first self-locking motor (24) and a second self-locking motor (25). The output ends of the first self-locking motor (24) and the second self-locking motor (25) are respectively connected to one of the crushing rollers (10) and one of the rotating rollers (16).

3. The integrated device for noise reduction, crushing, and screening of coal samples according to claim 1, characterized in that: The processing box (6) is connected to a feed hopper (27) and a discharge pipe (28) at the top of the crushing chamber (7) and the bottom of the screening chamber (8), respectively. A valve is installed on one side of the discharge pipe (28).

4. The integrated device for noise reduction, crushing, and screening of coal samples according to claim 1, characterized in that: The crushing chamber (7) is connected to a guide plate (26) inside and on top of the two crushing rollers (10).

5. The integrated device for noise reduction, crushing, and screening of coal samples according to claim 1, characterized in that: An electric push rod (30) is installed inside the screening chamber (8) and at the top of the screen (12). A baffle (31) is connected to the output end of the electric push rod (30) and on one side of the feed inlet (13).

6. The integrated device for noise reduction, crushing, and screening of coal samples according to claim 1, characterized in that: Multiple auxiliary wheels (29) are installed at the bottom of the first convex block (3) and the second convex block (4).

7. The integrated device for noise reduction, crushing, and screening of coal samples according to claim 2, characterized in that: A controller (32) is installed on one side of the convex groove (2) and at the bottom of the second self-locking motor (25).

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