Rotary buffer type arch breaking device for preventing coal gangue bin from being blocked and stagnated
The mechanical removal of blockages in the coal gangue bins by a rotary buffer arch-breaking device has solved the problem of blockages, enabling safe and efficient production and reducing dust pollution.
Patent Information
- Application Number
- CN202423203754.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Coal gangue bins often become clogged in mine production due to their high viscosity and moisture content. Existing technologies such as blasting and manual clearing pose safety hazards and are inefficient, affecting production safety and economic benefits.
The device employs a rotary buffer-type arch-breaking device, including an electric arch-breaking component and a vibrating coal feeder. It mechanically rotates to break up the interlocking and bridging of large coal gangue. The device also includes a waterproof coal device and a dust removal system, which uses the impact force of falling coal gangue to spray water to suppress dust.
It has achieved safe and efficient unblocking of coal gangue bins, eliminated the safety hazards of manual handling, improved production efficiency, and reduced dust pollution.
Smart Images
Figure CN223534100U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal mine safety transportation technology, specifically relating to a rotary buffer arch-breaking device for preventing coal gangue bunkers from becoming clogged and stuck. Background Technology
[0002] Coal gangue buffer bins are a key storage and loading link in mine production systems, playing a vital role in ensuring continuous and stable mine production. Conveyors (such as scraper conveyors) and mine cars are located below the coal gangue bins. During transfer, the gangue in the buffer bins falls onto the conveyors or into the mine cars. Coal gangue generated during mining operations is highly viscous and has a high moisture content. When passing through the buffer bins, the gangue often arches and blocks the bin outlet due to stagnation, hindering normal transport operations and frequently requiring manual handling. This not only fails to fully utilize the function of the coal gangue buffer bins but also seriously affects normal and safe production.
[0003] The most common form of blockage in coal gangue buffer bins is arching. Currently, the main methods for dealing with arching caused by stagnant gangue during transportation are blasting and manual clearing. However, with increasingly stringent safety requirements for coal mining, blasting operations are prohibited. Manual arching requires a wet environment containing large pieces of gangue, posing significant safety hazards to personnel and equipment. Manual arching is inefficient, taking a considerable amount of time each time it addresses stagnant gangue, leading to prolonged shutdowns of related transportation systems, severely impacting normal mine production and significantly affecting the mine's economic benefits. In particular, manual clearing presents significant safety risks; sudden surges of gangue during manual clearing can cause serious injury to operators.
[0004] Therefore, there is an urgent need to adopt efficient and safe treatment methods to solve the problem of blockage and stagnation in coal gangue buffer silos during production. This invention can effectively address the problem of arching and blockage in coal gangue buffer silos. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rotary buffer arch-breaking device to prevent coal gangue from being blocked and stagnant in the bin, thus solving the problem of gangue blockage in the existing technology.
[0006] The purpose of this utility model can be achieved through the following technical solution: a rotary buffer arch-breaking device for preventing coal gangue bunker from becoming clogged and stuck, comprising a buffer bunker, a frame and an electric arch-breaking component;
[0007] A flat gate is installed at the lower part of the lock opening of the buffer chamber, and a lock opening chute is installed at the lower part of the flat gate. A frame is installed on the outer wall of the buffer chamber, and a vibrating coal feeder is installed on the top of the frame. The lock opening chute is inserted into the trough of the vibrating coal feeder. An electric arch-breaking component is installed on the inner wall of the lock opening chute. A telescopic connecting rod is installed at one end of the lower circular connecting rod of the electric arch-breaking component. A rotary motor is installed on the left side of the telescopic connecting rod. A baffle plate is installed in front of the discharge end of the vibrating coal feeder, and a guide chute is installed at the lower part of the discharge end. A belt feeder is installed at the bottom of the guide chute.
[0008] In some disclosures, a maintenance and operation platform is installed on the outer wall of the frame, an explosion-proof electrical controller is installed on the inner wall of the frame, and a mine car is placed below the vibrating coal feeder.
[0009] In some disclosures, the electric arch-breaking assembly includes a trapezoidal arch-breaking device and a telescopic link, with the trapezoidal arch-breaking device mounted on the outer wall of the telescopic link.
[0010] In some disclosures, the inner wall of the buffer chamber is equipped with a No. 1 rod via bearings, the outer wall of the No. 1 rod is surrounded by a belt, and the No. 1 rod is connected to the output end of the rotary motor via belt drive. A No. 1 gear is installed at the top of the No. 1 rod.
[0011] In some disclosures, the inner wall of the buffer chamber is equipped with multiple fixed rings. A second rod is movably installed on the inner wall of the fixed rings. A second gear is installed at both the upper and lower ends of the second rod, and the second gear meshes with a first gear. A third rod is movably installed on the inner wall of the fixed rings. A third gear is installed at the bottom of the third rod, and the third gear meshes with a second gear. Cams are installed on the outer walls of the first, second, and third rods. A movable rod is installed through the outer wall of the buffer chamber. A push plate is installed at one end of the movable rod. A first spring is installed around the outer wall of the movable rod.
[0012] In some disclosures, a dust collector is installed on the top of the maintenance operation platform. The top of the dust collector has an air inlet. A fixed shaft is installed on the outer wall of the dust collector. An impact plate is installed on the outer wall of the fixed shaft. A second spring is installed on the outer wall of the impact plate. A water tank is installed on the inner wall of the dust collector. A water spray pipe is installed through the outer wall of the water tank. One end of the water spray pipe is located above the vibrating coal feeder. A retaining ring is installed on the outer wall of the water spray pipe.
[0013] In some disclosures, a fixed cylinder is installed on the inner wall of the dust collector, a fixed hole is opened on the outer wall of the fixed cylinder, a driven rod is installed through the outer wall of the fixed cylinder, a third spring is installed around the outer wall of the driven rod, and one end of the third spring is fixedly connected to the outer wall of the dust collector. A sealing plate is installed on one end of the driven rod, a fixed pipe is installed at the bottom of the fixed cylinder, and the bottom of the fixed pipe extends into the interior of the water tank. A one-way valve is installed on the outer wall of the fixed pipe.
[0014] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:
[0015] A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them;
[0016] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.
[0017] Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields.
[0018] A sliding connection is a connection between parts that allows the parts to slide against each other.
[0019] The beneficial effects of this utility model are:
[0020] 1. This utility model adopts an electromechanical method for combined arch breaking, which has the advantages of strong adaptability to different types of arch breaking, large clearing range, and good arch breaking effect, effectively solving the long-standing problem of arching in coal gangue silos.
[0021] 2. This utility model installs a waterproof coal device at the lock opening of the gangue bin to prevent water and coal from entering and to facilitate equipment maintenance.
[0022] 3. The present invention is connected to a vibrating belt feeder, and a movable anti-sticking and wear-resistant vibrating backstop plate is installed at the rear to eliminate the adhesion and caking of the gangue under the lock, thus eliminating the risk of arching in this part.
[0023] 4. This utility model includes an electric arch-breaking device installed at the lock position of the gangue bin. The electric arch-breaking device is installed inside the bin and, driven by a rotary motor, performs mechanical arch breaking within the gangue bin, causing the broken pieces to bridge and form an arch.
[0024] 5. This utility model can completely eliminate the safety hazards of personnel injury during daily arch breaking operations by using electric rotary mechanical methods, without the need for manual arch breaking operations.
[0025] 6. This utility model utilizes the impact force of falling coal gangue to drive corresponding components, enabling water to be automatically sprayed onto the surface of the coal gangue, thereby achieving dust suppression. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0028] Figure 2 This is a front view of the electric arch-breaking component according to an embodiment of the present utility model;
[0029] Figure 3 This is a schematic diagram of the buffer compartment structure according to an embodiment of the present invention;
[0030] Figure 4 This is a schematic diagram of the dust collector box structure according to an embodiment of the present utility model;
[0031] Figure 5 This is a schematic diagram of the fixed cylinder part of an embodiment of the present utility model.
[0032] In the diagram: 1. Buffer chamber; 11. Frame; 2. Flat gate; 3. Rotary motor; 4. Feed chute; 5. Explosion-proof electrical controller; 6. Electric arch-breaking assembly; 61. Trapezoidal arch breaker; 62. Telescopic connecting rod; 7. Locking chute; 8. Vibrating feeder; 9. Maintenance and operation platform; 10. Mine car; 12. No. 1 rod; 13. Belt conveyor; 14. No. 1 gear; 15. No. 2 rod; 16. No. 3 rod; 17. Fixing ring ; 18. No. 3 rod; 181. Cam; 19. No. 3 gear; 20. Moving rod; 21. First spring; 22. Push plate; 23. Dust collector; 24. Air inlet; 25. Fixed shaft; 26. Impact plate; 27. Second spring; 28. Water tank; 29. Water spray pipe; 30. Snap ring; 31. Fixed cylinder; 32. Fixed hole; 33. Driven rod; 34. Third spring; 35. Sealing plate; 36. Fixed tube. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0034] Please see Figure 1 and Figure 2A rotary buffer-type arch-breaking device for preventing coal gangue silos from becoming clogged and stuck includes a buffer silo 1, a frame 11, and an electric arch-breaking assembly 6. A flat gate 2 is installed at the lower part of the locking opening of the buffer silo 1, and a locking chute 7 is installed at the lower part of the flat gate 2. The frame 11 is installed on the outer wall of the buffer silo 1, and a vibrating feeder 8 is installed on the top of the frame 11. The locking chute 7 is inserted into the groove of the vibrating feeder 8. The electric arch-breaking assembly 6 is installed on the inner wall of the locking chute 7, and a telescopic component is installed at one end of the lower circular connecting rod of the electric arch-breaking assembly 6. The retractable connecting rod 62 has a rotary motor 3 installed on its left side. A baffle plate is installed in front of the discharge end of the vibrating coal feeder 8, and a guide chute 4 is installed at the lower part of the discharge end. A belt feeder is installed at the bottom of the guide chute 4. An inspection and operation platform 9 is installed on the outer wall of the frame 11, and an explosion-proof electrical controller 5 is installed on the inner wall of the frame 11. A mine car 10 is placed below the vibrating coal feeder 8. The electric arch-breaking assembly 6 includes a trapezoidal arch-breaking device 61 and a retractable connecting rod 62. The trapezoidal arch-breaking device 61 is installed on the outer wall of the retractable connecting rod 62.
[0035] Specifically, when the coal gangue in the coal gangue bin forms an arch, the electric arch-breaking component 6 is activated. Driven by the rotational force of the motor, the electric arch-breaking component 6 mechanically rotates and breaks the arch at the arched part. The mechanical arch-breaking is mainly able to break the interlocking and bridging arch caused by large pieces of coal gangue.
[0036] Please see Figure 3 The inner wall of the buffer chamber 1 is fitted with a first rod 12 via bearings. A belt 13 is mounted around the outer wall of the first rod 12, and the first rod 12 is connected to the output end of the rotary motor 3 via the belt 13. A first gear 14 is mounted at the top of the first rod 12. Multiple fixed rings 17 are mounted on the inner wall of the buffer chamber 1. A second rod 15 is movably mounted on the inner wall of the fixed rings 17. A second gear 16 is mounted at both the upper and lower ends of the second rod 15, and the second gear 16 meshes with the first gear 14. A third rod 18 is movably mounted on the inner wall of the fixed rings 17. A third gear 19 is mounted at the bottom of the third rod 18, and the third gear 19 meshes with the second gear 16. Cams 181 are mounted on the outer walls of the first rod 12, the second rod 15, and the third rod 18. A moving rod 20 is installed through the outer wall of the buffer chamber 1. A push plate 22 is mounted at one end of the moving rod 20, and a first spring 21 is mounted around the outer wall of the moving rod 20.
[0037] Specifically, the rotary motor 3 drives the belt 13 to rotate, the belt 13 drives the first rod 12 to rotate, the first rod 12 drives the first gear 14 to rotate, the first gear 14 drives the second gear 16 to rotate, the second gear 16 drives the second rod 15 to rotate, and similarly, the third gear 19 drives the third rod 18 to rotate. When the first rod 12, the second rod 15 and the third rod 18 rotate, they drive the cam 181 to rotate. During the rotation of the cam 181, it will squeeze the moving rod 20. The moving rod 20 moves and drives the first spring 21 to contract. Then the moving rod 20 drives the push plate 22 to lift the coal gangue inside the buffer chamber 1, thereby assisting in breaking the arch and preventing blockage.
[0038] Please see Figure 4 and Figure 5 The maintenance operation platform 9 has a dust collector 23 installed on its top. The top of the dust collector 23 has an air inlet 24. A fixed shaft 25 is installed on the outer wall of the dust collector 23. An impact plate 26 is installed on the outer wall of the fixed shaft 25. A second spring 27 is installed on the outer wall of the impact plate 26. A water tank 28 is installed on the inner wall of the dust collector 23. A water spray pipe 29 is installed through the outer wall of the water tank 28. One end of the water spray pipe 29 is located above the vibrating coal feeder 8. A retaining ring 30 is installed on the outer wall of the water spray pipe 29. A fixing cylinder 31 is installed on the inner wall of the dust box 23. A fixing hole 32 is opened on the outer wall of the fixing cylinder 31. A driven rod 33 is installed through the outer wall of the fixing cylinder 31. A third spring 34 is installed around the outer wall of the driven rod 33. One end of the third spring 34 is fixedly connected to the outer wall of the dust box 23. A sealing plate 35 is installed on one end of the driven rod 33. A fixing pipe 36 is installed at the bottom of the fixing cylinder 31. The bottom of the fixing pipe 36 extends into the interior of the water tank 28. A one-way valve is installed on the outer wall of the fixing pipe 36.
[0039] Specifically, when the coal gangue in the buffer bin 1 falls above the vibrating feeder 8, the coal gangue will come into contact with the impact plate 26. The rotation of the impact plate 26 will cause the second spring 27 to contract. Subsequently, the impact plate 26 will squeeze the driven rod 33 during rotation. The driven rod 33 will move inside the fixed cylinder 31. At this time, the outside air will enter the dust collector 23 through the air inlet 24, and then enter the fixed cylinder 31 through the fixed hole 32. When the driven rod 33 moves, it will drive the sealing plate 35 to move, thereby causing the sealing plate 35 to squeeze the air in the fixed cylinder 31. Then the air will enter the fixed pipe 36 and the one-way valve into the water tank 28, thereby increasing the pressure in the water tank 28. After the pressure inside the water tank 28 increases, the water will be sprayed onto the vibrating feeder 8 through the water spray pipe 29, thereby reducing dust.
[0040] It should be noted that the coal gangue is squeezed and impacted by the plate 26, which in turn sprays water out through the water pipe 29. By utilizing the impact force of the falling coal gangue, the corresponding parts are driven to work, so that water is sprayed onto the surface of the coal gangue. The water absorbs the dust on the surface of the coal gangue, thereby reducing the dust during the operation of the equipment.
[0041] Working principle: Rotary motor 3 drives belt 13 to rotate, belt 13 drives rod 12 to rotate, rod 12 drives gear 14 to rotate, gear 14 drives gear 16 to rotate, gear 16 drives rod 15 to rotate, and similarly gear 19 drives rod 18 to rotate. The rotation of rods 12, 15, and 18 drives cam 181 to rotate. During this rotation, cam 181 compresses moving rod 20, causing the first spring 21 to contract. Subsequently, moving rod 20 drives push plate 22 to lift the coal gangue inside buffer bin 1, thus assisting in breaking arches and preventing blockages. When the coal gangue in buffer bin 1 falls above vibrating feeder 8... Coal gangue will come into contact with the impact plate 26. The rotation of the impact plate 26 will cause the second spring 27 to contract. Subsequently, the impact plate 26 will squeeze the driven rod 33 during rotation. The driven rod 33 will move inside the fixed cylinder 31. At this time, external air will enter the dust collector 23 through the air inlet 24 and then enter the fixed cylinder 31 through the fixed hole 32. When the driven rod 33 moves, it will drive the sealing plate 35 to move, thereby causing the sealing plate 35 to squeeze the air in the fixed cylinder 31. Then the air will enter the fixed pipe 36 and the one-way valve into the water tank 28, thereby increasing the pressure in the water tank 28. After the pressure inside the water tank 28 increases, water will be sprayed onto the vibrating coal feeder 8 through the water spray pipe 29, thereby reducing dust.
[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.
Claims
1. A rotary buffer-type arch-breaking device for preventing blockage and stagnation in coal gangue bins, characterized in that, Includes a buffer chamber (1), a frame (11), and an electric arch-breaking assembly (6); A flat gate (2) is installed at the lower part of the lock opening of the buffer chamber (1). A lock opening chute (7) is installed at the lower part of the flat gate (2). A frame (11) is installed on the outer wall of the buffer chamber (1). A vibrating feeder (8) is installed on the top of the frame (11). The lock opening chute (7) is inserted into the groove of the vibrating feeder (8). An electric arch-breaking assembly (6) is installed on the inner wall of the lock opening chute (7). A telescopic connecting rod (62) is installed at one end of the lower circular connecting rod of the electric arch-breaking assembly (6). A rotary motor (3) is installed on the left side of the telescopic connecting rod (62). A baffle is installed in front of the discharge end of the vibrating feeder (8). A guide chute (4) is installed at the lower part of the discharge end. A belt feeder is installed at the bottom of the guide chute (4).
2. The rotary buffer arch-breaking device for preventing blockage and stagnation of coal gangue bins according to claim 1, characterized in that, The outer wall of the frame (11) is equipped with a maintenance operation platform (9), the inner wall of the frame (11) is equipped with an explosion-proof electrical controller (5), and a mine car (10) is placed below the vibrating coal feeder (8).
3. The rotary buffer arch-breaking device for preventing blockage and stagnation of coal gangue bins according to claim 1, characterized in that, The electric arch-breaking assembly (6) includes a trapezoidal arch-breaking device (61) and a telescopic connecting rod (62), with the trapezoidal arch-breaking device (61) installed on the outer wall of the telescopic connecting rod (62).
4. The rotary buffer arch-breaking device for preventing blockage and stagnation of coal gangue bins according to claim 1, characterized in that, The inner wall of the buffer chamber (1) is fitted with a first rod (12) via a bearing. A belt (13) is mounted around the outer wall of the first rod (12). The first rod (12) is connected to the output end of the rotary motor (3) via the belt (13). A first gear (14) is mounted on the top of the first rod (12).
5. A rotary buffer-type arch-breaking device for preventing blockage and stagnation of coal gangue bins according to claim 1, characterized in that, The inner wall of the buffer chamber (1) is equipped with multiple fixed rings (17). A second rod (15) is movably installed on the inner wall of the fixed ring (17). A second gear (16) is installed at both the upper and lower ends of the second rod (15), and the second gear (16) meshes with the first gear (14). A third rod (18) is movably installed on the inner wall of the fixed ring (17). A third gear (19) is installed at the bottom of the third rod (18), and the third gear (19) meshes with the second gear (16). A cam (181) is installed on the outer wall of the first rod (12), the second rod (15), and the third rod (18). A moving rod (20) is installed through the outer wall of the buffer chamber (1). A push plate (22) is installed at one end of the moving rod (20), and a first spring (21) is installed around the outer wall of the moving rod (20).
6. A rotary buffer arch-breaking device for preventing blockage and stagnation of coal gangue bins according to claim 2, characterized in that, The maintenance operation platform (9) is equipped with a dust collector (23) on top. The dust collector (23) has an air inlet (24) on top. A fixed shaft (25) is installed on the outer wall of the dust collector (23). An impact plate (26) is installed on the outer wall of the fixed shaft (25). A second spring (27) is installed on the outer wall of the impact plate (26). A water tank (28) is installed on the inner wall of the dust collector (23). A water spray pipe (29) is installed through the outer wall of the water tank (28). One end of the water spray pipe (29) is located above the vibrating coal feeder (8). A retaining ring (30) is installed on the outer wall of the water spray pipe (29).
7. A rotary buffer-type arch-breaking device for preventing blockage and stagnation of coal gangue bins according to claim 6, characterized in that, The inner wall of the dust collector (23) is equipped with a fixing cylinder (31), the outer wall of the fixing cylinder (31) is provided with a fixing hole (32), the outer wall of the fixing cylinder (31) is through-installed with a driven rod (33), the outer wall of the driven rod (33) is surrounded by a third spring (34), and one end of the third spring (34) is fixedly connected to the outer wall of the dust collector (23). One end of the driven rod (33) is equipped with a sealing plate (35), the bottom of the fixing cylinder (31) is equipped with a fixing pipe (36), and the bottom of the fixing pipe (36) extends into the interior of the water tank (28). The outer wall of the fixing pipe (36) is equipped with a one-way valve.