Coal mine scraper conveyor

Abstract

The invention belongs to the field of scraper conveyors, and particularly relates to a coal mine scraper conveyor which comprises a transport box, power cabinets are installed at the two ends of the transport box, motor boxes are fixedly connected to the outer sides of the power cabinets, and driving discs are rotatably connected to the interiors of the power cabinets. The output end of the motor box is in transmission connection with the driving discs through a belt, a driving chain is connected between the two driving discs in a sleeved mode, a plurality of friction scraping plates are installed on the outer side of the driving chain, a feeding port is formed in the position, close to the rear end, of the top face of the conveying box, and a discharging port is formed in the position, close to the front end, of the bottom face of the conveying box. A hot melting box used for coating a friction scraper is arranged in the transport box, the top face of the hot melting box is open, and through the arrangement, abrasion of the transport box, a driving chain and the friction scraper in the using process is greatly reduced, the service life of parts is prolonged, the follow-up work of frequently replacing the parts is reduced, and the production efficiency is improved. Therefore, the use cost of the equipment is reduced.

Description

Technical Field

[0001] The invention belongs to the field of scraper conveyors, in particular to a coal mine scraper conveyor. Background Art

[0002] Scraper conveyor is a common continuous conveying equipment, mainly used for horizontal or inclined conveying of granular, block or powdery materials. Scraper conveyor uses a set of chains to firmly fix the scraper on the chain, and then drives the chain through the motor to move the scraper along the conveying path. During the movement, the scraper pushes the material from the feed port to the discharge port to achieve continuous conveying of the material.

[0003] The scraper conveyor has a solid structure and can withstand the impact, collision, smashing, and pressure of coal, gangue or other materials. It can adapt to the needs of uneven bottom plate and bending of coal mining working face, and can withstand vertical or horizontal bending. Traditional scraper conveyors are generally used to transport bulk materials such as coal due to their sturdy structure and stable transportation method. However, during the transportation process, the materials will rub against the scraper and bottom plate of the equipment for a long time, which will not only easily cause serious friction between the parts of the equipment, requiring regular replacement, but also cause more material loss during the friction process.

[0004] To this end, the present invention provides a coal mine scraper conveyor. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a coal mine scraper conveyor described in the present invention comprises a transport box, power cabinets are installed at both ends of the transport box, a motor box is fixedly connected to the outside of the power cabinet, a drive disk is rotatably connected inside the power cabinet, the output end of the motor box and the drive disk are connected by a belt, a drive chain is sleeved between the two drive disks, a plurality of friction scrapers are installed on the outside of the drive chain, a feeding port is opened on the top surface of the transport box near the rear end, a discharging port is opened on the bottom surface of the transport box near the front end, a hot melt box for coating the friction scraper is arranged inside the transport box, and the top surface of the hot melt box is opened; The material is continuously injected into the transport box through the feeding port. The material passes through the friction scraper above and falls to the bottom of the transport box. Through the motor in the motor box, the belt and the driving disc are driven to rotate, thereby driving the driving chain to move in a circular motion. Then, the friction scraper pushes the material at the bottom towards the front end of the transport box and finally discharges it from the discharge port. As the driving chain moves, at a certain moment, it will drive the friction scraper to move above the hot melt box. The hot melt box is filled with hot melt material, and epoxy resin can be used as the hot melt material. An electric heating module is arranged in the hot melt box to heat the hot melt material into a molten state. The friction scraper will sink into the hot melt box, so that the molten hot melt material adheres to the outside of the friction scraper. Then, the driving chain and the friction scraper continue to move to the outside of the hot melt box. As the temperature decreases, the hot melt material gradually hardens and adheres to the outside of the driving chain and the friction scraper. In this way, during the subsequent process of pushing the coal blocks, it is actually the hardened hot melt material that contacts the coal blocks. Even after hardening, the surface of the hot melt material is relatively soft, and during the friction process, the hot melt material will gradually be worn. As a result, the driving chain, the friction scraper, and the transport box are no longer directly rubbed by the coal blocks, and the driving chain and the friction scraper no longer directly rub against the bottom surface of the transport box. Through this setting, the wear of the transport box, the driving chain, and the friction scraper during use is greatly reduced, the service life of the parts is improved, the work of frequently replacing parts in the future is reduced, and thus the use cost of the equipment is reduced. At the same time, during the transportation of the coal blocks, a large amount of coal powder will diffuse into the air, affecting the working environment. However, the surface of the hot melt material has a certain adsorption viscosity, which can effectively reduce the diffusion of coal powder, thereby reducing the impact of coal powder on the environment.

[0007] Preferably, the driving chain is composed of multiple groups of connecting chains. The connecting chain includes link one and link two. Link one and link two are rotatably connected to each other, and adjacent connecting chains are rotatably connected. The friction scraper is arranged on both sides of link one. Link one is composed of two link twos. The friction scraper is rotatably connected to the middle of link one through a rotating shaft. The structural setting of the driving chain enables the driving chain to move stably in a circular motion driven by the driving disc. In the face of huge mechanical forces, the hardened hot melt material can be easily overcome, so it will not affect the bending and turning process of link one and link two. The rotatable connection setting of the friction scraper makes the friction scraper turn downward under the action of gravity when it moves to the top of the transport box. In this way, the friction scraper can fully sink into the hot melt material in the hot melt box to ensure the full adhesion of the hot melt material. When the friction scraper moves to the lower part, it will become a horizontal device under the action of gravity and will not affect normal work.

[0008] Preferably, a guiding plate is arranged in the transport box. Both sides of the guiding plate are fixedly connected to the transport box through brackets. The guiding plate is located above the interior of the transport box. A transfer pipe is fixedly connected to the top of the hot melt box. The guiding plate is provided to enable the friction scraper to be normally in a horizontal state around the driving disc, ensuring that the driving disc driving the driving chain is not affected by the friction scraper. At the same time, the guiding plate supports the friction scraper. After the friction scraper moves above the hot melt box, the friction scraper is then lowered. The transfer pipe is used to guide the friction scraper after it rotates downward to a horizontal state, so that the friction scraper can be smoothly removed from the hot melt box.

[0009] Preferably, a receiving box fixedly connected to the transport box is arranged on one side of the hot melt box. The top surface of the receiving box is open. The bottom of the receiving box is connected to the hot melt box through a suction pipe. The receiving box is located behind the hot melt box. A dispersion pipe is fixedly connected between the transfer pipe and the guiding plate. The dispersion pipe is located above the receiving box. When the friction scraper is removed from the hot melt box, the still-unsolidified hot melt material will drip downward and is recovered through the receiving box. The recovered hot melt material is transferred to the hot melt box through the suction pipe for heating and reuse. The dispersion pipe is provided to enable the hot melt material on the surface of the friction scraper to drip smoothly into the receiving box through the dispersion pipe.

[0010] Preferably, nozzles are fixedly connected to both sides near the top surface of the hot melt box. A transfer pump is installed at the bottom of the hot melt box. The output end of the transfer pump is communicated with the nozzles. The nozzles can spray the hot melt material onto the central driving chain through the transfer pump, ensuring that the hot melt material can fully cover the driving chain and the friction scraper.

[0011] Preferably, a spray pipe is installed above the interior of the transport box. Sprayers are installed on both the upper and lower sides of the spray pipe. The spray pipe is located behind the receiving box. A plurality of maintenance openings are opened above the transport box, and sealing covers are placed in the maintenance openings. The spray pipe is used to connect to an external water source. After the water is atomized by the sprayers, it is sprayed into the transport box. The downward water mist contacts the coal blocks, which can both reduce the diffusion of coal powder and cool the coal blocks, reducing potential safety hazards during transportation. The upward water mist can quickly cool the hot melt material, causing the hot melt material to cool rapidly and solidify.

[0012] Preferably, a hollow sandwich is formed inside the friction scraper. A plurality of leakage holes communicating with the hollow sandwich are formed on the surface of the friction scraper. After the friction scraper is placed in the hot melt box, the hot melt material will flow into the hollow sandwich along the leakage holes. After the hot melt material solidifies, the internal and external hot melt materials will be connected to each other through the leakage holes, so that the coating on the surface of the friction scraper will not fall off in large pieces when subjected to external forces.

[0013] Preferably, a friction roller is rotatably connected to the side of the friction scraper that rubs against the transport box. Part of the friction roller is located in the hollow sandwich layer of the friction scraper. When the friction scraper moves downward, the friction roller will contact the bottom of the transport box, which can not only reduce the frictional damage between the friction scraper and the transport box, but also increase the internal temperature as the friction roller rotates continuously. The hot-melt material in the hollow sandwich layer will gradually be smeared on the inner bottom of the transport box through the friction roller, thereby reducing the frictional damage of the coal blocks to the transport box during movement. At the same time, the friction roller can smear the hot-melt material on the inner bottom of the transport box more evenly without affecting the normal movement of the drive chain and the friction scraper.

[0014] Preferably, a support pipe for support is fixedly connected to the bottom of the hot-melt box. Both ends of the support pipe penetrate to the outside of the transport box and are in communication with the inside of the hot-melt box. A filling valve is installed at the end of one of the support pipes. The support pipe is used to support the hot-melt box and at the same time continuously inject the external hot-melt material into the hot-melt box.

[0015] Preferably, a fan is installed on the outside of one of the power cabinets. The output end of the fan faces into the power cabinet. A dust collector is installed on the other side of the power cabinet. The fan and the dust collector are started at the same time to form a stable air flow in the power cabinet to clean the coal powder on the surface of the friction scraper. The cleaned coal powder is recovered by the dust collector, thereby reducing the amount of coal powder being carried into the hot-melt box.

[0016] The beneficial effects of the present invention are as follows: 1. For the coal mine scraper conveyor of the present invention, as the drive chain moves, at a certain moment, it will drive the friction scraper to move above the hot-melt box. The hot-melt box is filled with a hot-melt material, and the hot-melt material can be epoxy resin. An electric heating module is provided in the hot-melt box to heat the hot-melt material into a molten state. There is a downward protrusion on the inner top of the transport box. The position of the protrusion is above the hot-melt box and coincides with the track of the drive chain. When the drive chain and the friction scraper pass by the hot-melt box, under the action of the protrusion, the drive chain and the friction scraper will sink into the hot-melt box, so that the molten hot-melt material adheres to the outside of the drive chain and the friction scraper. Then the drive chain and the friction scraper continue to move to the outside of the hot-melt box. As the temperature decreases, the hot-melt material gradually hardens and adheres to the outside of the drive chain and the friction scraper. In this way, during the subsequent process of pushing the coal blocks, it is actually the hardened hot-melt material that contacts the coal blocks. Even after the hot-melt material hardens, its surface is still relatively soft, and during the friction process, the hot-melt material will gradually be worn. As a result, the drive chain, the friction scraper, and the transport box are no longer directly rubbed by the coal blocks, and the drive chain and the friction scraper are no longer directly rubbed against the bottom surface of the transport box. Through this setting, the wear of the transport box, the drive chain, and the friction scraper during use is greatly reduced, the service life of the parts is improved, the work of frequently replacing parts in the future is reduced, and thus the use cost of the equipment is reduced.

[0017] 2. For the coal mine scraper conveyor of the present invention, the structural arrangement of the drive chain enables the drive chain to move stably in a circular motion driven by the drive disk. In the face of huge mechanical forces, the hardened hot-melt material can be easily overcome, so it will not affect the bending and turning processes of link one and link two. The rotational connection arrangement of the friction scraper causes the friction scraper to turn downward under the action of gravity when it moves to the top of the transport box, so that the friction scraper can fully sink into the hot-melt material in the hot-melt box, ensuring full adhesion of the hot-melt material. When the friction scraper moves to the lower part, it will become a horizontal device under the action of gravity and will not affect normal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a perspective view of the present invention; Figure 2 is a cross-sectional view of the transport box of the present invention; Figure 3 is a perspective view of the power cabinet and the transport box of the present invention; Figure 4 is a perspective view of the drive chain and the hot-melt box of the present invention; Figure 5 is a perspective view of the hot-melt box and the receiving box of the present invention; Figure 6 is a perspective view of the friction scraper of the present invention; In the figure: 1, transport box; 2, power cabinet; 3, motor box; 4, sealing cover; 5, feeding port; 6, fan; 7, discharge port; 8, drive chain; 9, friction scraper; 10, receiving box; 11, hot-melt box; 12, spray head; 13, drive disk; 14, guiding plate; 15, nozzle; 16, support pipe; 17, transfer pipe; 18, dispersion pipe; 19, link one; 20, link two; 21, rotating shaft; 22, friction roller; 23, leakage hole; 24, spray pipe. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0021] As Figures 1 to 6As shown, a coal mine scraper conveyor described in an embodiment of the present invention comprises a transport box 1, power cabinets 2 are installed at both ends of the transport box 1, a motor box 3 is fixedly connected to the outside of the power cabinet 2, a drive disk 13 is rotatably connected inside the power cabinet 2, an output end of the motor box 3 is connected to the drive disk 13 through a belt, a drive chain 8 is sleeved between two drive disks 13, a plurality of friction scrapers 9 are installed on the outside of the drive chain 8, a feeding port 5 is opened on the top surface of the transport box 1 near the rear end, a discharge port 7 is opened on the bottom surface of the transport box 1 near the front end, a hot melt box 11 for coating the friction scraper 9 is arranged inside the transport box 1, and the top surface of the hot melt box 11 is opened; The material is continuously injected into the transport box 1 through the feeding port 5, and the material passes through the friction scraper 9 above and falls to the bottom of the transport box 1. The motor in the motor box 3 drives the belt and the drive disk 13 to rotate, thereby driving the drive chain 8 to move in a circular manner, and then the friction scraper 9 pushes the bottom material to the front end of the transport box 1, and finally discharges it from the discharge port 7; as the drive chain 8 moves, at a certain moment, the friction scraper 9 will be driven to move above the hot melt box 11; the hot melt box 11 is filled with hot melt material, and the hot melt material can use epoxy resin. The hot melt box 11 is provided with an electric heating module to heat the hot melt material into a molten state; the drive chain 8 will sink into the hot melt box 11, so that the hot melt material adheres to the outside of the friction scraper 9, and then the drive chain 8 and the friction scraper 9 continue to move to the outside of the hot melt box 11. As the temperature decreases, the hot melt material gradually hardens and adheres to the drive chain 8 and the outer side of the friction scraper 9, so that in the subsequent process of pushing the coal block, what actually contacts the coal block is the hardened hot-melt material, and even after the hot-melt material is hardened, the surface is relatively soft, and in the friction process, the hot-melt material will gradually be worn, so that the drive chain 8, the friction scraper 9 and the transport box 1 are no longer directly rubbed by the coal block, and the drive chain 8 and the friction scraper 9 are no longer directly rubbed with the bottom surface of the transport box 1. Through this arrangement, the wear of the transport box 1, the drive chain 8 and the friction scraper 9 during use is greatly reduced, the service life of the parts is increased, and the subsequent work of frequent replacement of parts is reduced, thereby reducing the use cost of the equipment; at the same time, during the transportation of the coal block, a large amount of coal powder will diffuse into the air, affecting the working environment, and the surface of the hot-melt material has a certain adsorption viscosity, which can effectively reduce the diffusion of coal powder, thereby reducing the impact of coal powder on the environment.

[0022] The driving chain 8 is composed of a plurality of connecting chains, the connecting chain includes a chain link 19 and a chain link 20, the chain link 19 and the chain link 20 are rotationally connected, and adjacent connecting chains are rotationally connected, the friction scraper 9 is arranged on both sides of the chain link 19, the chain link 19 is composed of two chain links 20, and the friction scraper 9 is rotationally connected to the middle part of the chain link 19 through a rotating shaft 21; During operation, the structure of the drive chain 8 is arranged such that the drive chain 8 can perform stable circular movement driven by the drive disk 13. In the face of huge mechanical forces, the hardened hot-melt material can be easily overcome, so it will not affect the bending and turning processes of the first link 19 and the second link 20. The rotatable connection of the friction scraper 9 enables the friction scraper 9 to turn downward under the action of gravity when it moves to the top of the transport box 1, so that the friction scraper 9 can fully sink into the hot-melt material in the hot-melt tank 11, ensuring full adhesion of the hot-melt material. When the friction scraper 9 moves downward, it will become a horizontal device under the action of gravity and will not affect normal operation.

[0023] A guide plate 14 is arranged in the transport box 1. Both sides of the guide plate 14 are fixedly connected to the transport box 1 through brackets. The guide plate 14 is located above the interior of the transport box 1. The top of the hot-melt tank 11 is fixedly connected with a transfer pipe 17. During operation, the guide plate 14 is provided to enable the friction scraper 9 to be in a normal horizontal state around the drive disk 13, ensuring that the drive disk 13 does not affect the drive chain 8 during driving, and at the same time, the guide plate 14 supports the friction scraper 9. After the friction scraper 9 moves above the hot-melt tank 11, the friction scraper 9 is lowered. The transfer pipe 17 is used to guide the friction scraper 9 after it rotates downward to a horizontal state, so that the friction scraper 9 can be smoothly moved away from the hot-melt tank 11.

[0024] One side of the hot-melt tank 11 is provided with a receiving box 10 fixedly connected to the transport box 1. The top surface of the receiving box 10 is open. The bottom of the receiving box 10 is connected to the hot-melt tank 11 through a suction pipe. The receiving box 10 is located behind the hot-melt tank 11. A dispersion pipe 18 is fixedly connected between the transfer pipe 17 and the guide plate 14. The dispersion pipe 18 is located above the receiving box 10. During operation, when the friction scraper 9 is moved away from the hot-melt tank 11, the not-yet-solidified hot-melt material will drip downward and is recycled through the receiving box 10. The recycled hot-melt material is transferred to the hot-melt tank 11 through the suction pipe for heating and reuse. The dispersion pipe 18 enables the hot-melt material on the surface of the friction scraper 9 to drip smoothly into the receiving box 10 through the dispersion pipe 18.

[0025] Nozzles 15 are fixedly connected to both sides of the top surface of the hot-melt tank 11. A transfer pump is installed at the bottom of the hot-melt tank 11. The output end of the transfer pump is communicated with the nozzles 15. During operation, the nozzles 15 can spray the hot-melt material towards the central drive chain 8 through the transfer pump, ensuring that the hot-melt material can fully cover the drive chain 8 and the friction scraper 9.

[0026] Above the interior of the transport box 1, a spray pipe 24 is installed. Nozzles 12 are installed on both the upper and lower sides of the spray pipe 24. The spray pipe 24 is located behind the receiving box 10. A plurality of maintenance openings are provided above the transport box 1, and sealing covers 4 are placed in the maintenance openings; During operation, the spray pipe 24 is used to connect to an external water source. After the water is atomized by the nozzles 12, it is sprayed into the transport box 1. The downward water mist contacts the coal blocks, which can both reduce the diffusion of coal powder and cool the coal blocks at the same time, reducing potential safety hazards during transportation. The upward water mist can quickly cool the hot-melt material, causing the hot-melt material to cool rapidly and solidify.

[0027] A hollow sandwich is provided inside the friction scraper 9, and a plurality of leakage holes 23 communicating with the hollow sandwich are provided on the surface of the friction scraper 9; During operation, when the friction scraper 9 is placed in the hot-melt box 11, the hot-melt material will flow into the hollow sandwich along the leakage holes 23. When the hot-melt material solidifies, the internal and external hot-melt materials will be connected to each other through the leakage holes 23. In this way, when the coating on the surface of the friction scraper 9 is not subject to external forces, it will not fall off in large pieces.

[0028] A friction roller 22 is rotatably connected to the side of the friction scraper 9 that rubs against the transport box 1, and a part of the friction roller 22 is located in the hollow sandwich of the friction scraper 9; During operation, when the friction scraper 9 moves downward, it will cause the friction roller 22 to contact the bottom of the transport box 1. This can not only reduce the frictional damage between the friction scraper 9 and the transport box 1, but also as the friction roller 22 rotates continuously, the internal temperature rises, and the hot-melt material in the hollow sandwich will gradually be smeared on the inner bottom of the transport box 1 through the friction roller 22, thereby reducing the frictional damage of the coal blocks to the transport box 1 during movement. At the same time, the friction roller 22 can smear the hot-melt material on the inner bottom of the transport box 1 more evenly, without affecting the normal movement of the drive chain 8 and the friction scraper 9.

[0029] A support pipe 16 for support is fixedly connected to the bottom of the hot-melt box 11. Both ends of the support pipe 16 penetrate to the outside of the transport box 1, and the support pipe 16 is in communication with the inside of the hot-melt box 11. A filling valve is installed at the end of one of the support pipes 16; During operation, the support pipe 16 is used to support the hot-melt box 11 and is also used to continuously inject external hot-melt material into the hot-melt box 11.

[0030] A blower 6 is installed on the outside of one of the power cabinets 2. The output end of the blower 6 faces into the power cabinet 2, and a vacuum cleaner is installed on the other side of the power cabinet 2; During operation, the fan 6 and the vacuum cleaner are started simultaneously to form a stable air flow in the power cabinet 2, which is used to clean the pulverized coal on the surface of the friction scraper 9. The cleaned pulverized coal is recovered by the vacuum cleaner, thereby reducing the amount of pulverized coal being carried into the hot melt tank 11 in large quantities.

[0031] During operation, materials are continuously injected into the transport box 1 through the feeding port 5. The materials pass through the upper friction scraper 9 and fall to the bottom of the transport box 1. The motor in the motor box 3 drives the belt and the driving disk 13 to rotate, thereby driving the driving chain 8 to move in a circular motion, and then the friction scraper 9 pushes the materials at the bottom towards the front end of the transport box 1 and finally discharges them from the discharge port 7. As the driving chain 8 moves, at a certain moment, it will drive the friction scraper 9 to move above the hot melt tank 11. The hot melt tank 11 is filled with a hot melt material, and the hot melt material can be epoxy resin. An electric heating module is provided in the hot melt tank 11 to heat the hot melt material into a molten state. The driving chain 8 will sink into the hot melt tank 11, causing the molten hot melt material to adhere to the outside of the friction scraper 9. Then the driving chain 8 and the friction scraper 9 continue to move to the outside of the hot melt tank 11. As the temperature decreases, the hot melt material gradually hardens and adheres to the outside of the driving chain 8 and the friction scraper 9. In this way, during the subsequent process of pushing the coal blocks, it is actually the hardened hot melt material that contacts the coal blocks. Even after the hot melt material hardens, its surface is still relatively soft, and during the friction process, the hot melt material will gradually be worn. As a result, the driving chain 8, the friction scraper 9, and the transport box 1 are no longer directly rubbed by the coal blocks, and the driving chain 8 and the friction scraper 9 are also no longer directly rubbed against the bottom surface of the transport box 1. Through this setting, the wear of the transport box 1, the driving chain 8, and the friction scraper 9 during use is greatly reduced, the service life of the parts is increased, the work of frequently replacing parts in the future is reduced, and thus the use cost of the equipment is reduced. At the same time, during the transportation of the coal blocks, a large amount of pulverized coal will diffuse into the air, affecting the working environment. However, the surface of the hot melt material has a certain adsorption viscosity, which can effectively reduce the diffusion of pulverized coal, thereby reducing the impact of pulverized coal on the environment. The structural setting of the driving chain 8 enables the driving chain 8 to move stably in a circular motion driven by the driving disk 13. In the face of huge mechanical forces, the hardened hot melt material can be easily overcome, so it will not affect the bending and turning process of the link one 19 and the link two 20. The rotational connection setting of the friction scraper 9 causes the friction scraper 9 to turn downward under the action of gravity when it moves to the top of the transport box 1. In this way, the friction scraper 9 can fully sink into the hot melt material in the hot melt tank 11 to ensure the full adhesion of the hot melt material. When the friction scraper 9 moves to the lower part, it will become a horizontal device under the action of gravity and will not affect normal operation. The guiding plate 14 is provided to enable the friction scraper 9 to be normally horizontal around the driving disc 13, ensuring that the driving disc 13 is not affected by the friction scraper 9 when driving the driving chain 8. At the same time, the guiding plate 14 supports the friction scraper 9. After the friction scraper 9 is moved above the hot-melt tank 11, the friction scraper 9 is then lowered. The transfer pipe 17 is used to guide the friction scraper 9, which has been rotated downward, to a horizontal state, so that the friction scraper 9 can be smoothly removed from the hot-melt tank 11; When the friction scraper 9 is removed from the hot-melt tank 11, the not-yet-solidified hot-melt material will drip downward and be recycled through the receiving tank 10. The recycled hot-melt material is transferred to the hot-melt tank 11 through a suction pipe for heating and reuse. The setting of the dispersion pipe 18 enables the hot-melt material on the surface of the friction scraper 9 to drip smoothly into the receiving tank 10 through the dispersion pipe 18; The nozzle 15 can spray the hot-melt material onto the central driving chain 8 through a transfer pump, ensuring that the hot-melt material can fully cover the driving chain 8 and the friction scraper 9; The spray pipe 24 is used to connect to an external water source. After the water is atomized by the nozzle 12 and sprayed in the transportation box 1, the downward water mist contacts the coal blocks, which can not only reduce the diffusion of coal powder but also cool the coal blocks, reducing potential safety hazards during transportation. The upward water mist can quickly cool the hot-melt material, causing the hot-melt material to cool rapidly and solidify; After the friction scraper 9 is placed in the hot-melt tank 11, the hot-melt material will flow into the hollow sandwich through the leakage holes 23. When the hot-melt material solidifies, the internal and external hot-melt materials will be connected to each other through the leakage holes 23, so that the coating on the surface of the friction scraper 9 will not fall off in large pieces when subjected to external forces; When the friction scraper 9 moves downward, it will cause the friction roller 22 to contact the bottom of the transportation box 1. This can not only reduce the frictional damage between the friction scraper 9 and the transportation box 1, but also, as the friction roller 22 rotates continuously, the internal temperature rises, and the hot-melt material in the hollow sandwich will gradually be smeared on the inner bottom of the transportation box 1 through the friction roller 22, thereby reducing the frictional damage to the transportation box 1 caused by the movement of the coal blocks. At the same time, the friction roller 22 can smear the hot-melt material on the inner bottom of the transportation box 1 relatively evenly without affecting the normal movement of the driving chain 8 and the friction scraper 9; The support pipe 16 is used to support the hot-melt tank 11 and is also used to continuously inject external hot-melt material into the hot-melt tank 11; The fan 6 and the vacuum cleaner are started simultaneously to form a stable airflow in the power cabinet 2 to clean the coal powder on the surface of the friction scraper 9. The cleaned coal powder is recycled by the vacuum cleaner, thereby reducing the amount of coal powder being carried into the hot-melt tank 11 in large quantities.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A coal mine scraper conveyor, characterized in that: It includes a transport box, both ends of which are equipped with power cabinets, the outer side of the power cabinet is fixedly connected with a motor box, the inside of the power cabinet is rotatably connected with a drive disk, the output end of the motor box and the drive disk are connected by a belt, a drive chain is sleeved between the two drive disks, a plurality of friction scrapers are installed on the outer side of the drive chain, a feeding port is provided on the top surface of the transport box near the rear end, a discharge port is provided on the bottom surface of the transport box near the front end, a hot melt box for coating the friction scraper is provided inside the transport box, and the top surface of the hot melt box is open.

2. The coal mine scraper conveyor according to claim 1, characterized in that: The driving chain is composed of multiple groups of connecting chains, and the connecting chain includes link one and link two. The link one and link two are rotationally connected, and adjacent connecting chains are rotationally connected. The friction scraper is arranged on both sides of link one, and the link one is composed of two links two. The friction scraper is rotationally connected to the middle part of link one through a rotating shaft.

3. A coal mine scraper conveyor according to claim 2, characterized in that: A guide plate is provided in the transport box, and two sides of the guide plate are fixedly connected to the transport box through brackets. The guide plate is located at the upper part of the transport box, and a transfer tube is fixedly connected to the top of the hot melt box.

4. A coal mine scraper conveyor according to claim 3, characterized in that: A receiving box fixedly connected to the transport box is provided on one side of the hot melt box, the top surface of the receiving box is open, the bottom of the receiving box is connected to the hot melt box through a suction pipe, the receiving box is located behind the hot melt box, a dispersion pipe is fixedly connected between the transfer pipe and the guide plate, and the dispersion pipe is located above the receiving box.

5. A coal mine scraper conveyor according to claim 4, characterized in that: Nozzles are fixedly connected to both sides of the top surface of the hot melt box, and a transmission pump is installed at the bottom of the hot melt box, and the output end of the transmission pump is connected to the nozzle.

6. A coal mine scraper conveyor according to claim 5, characterized in that: A spray pipe is installed at the upper part of the transport box, and nozzles are installed on the upper and lower sides of the spray pipe. The spray pipe is located behind the receiving box. A plurality of inspection ports are opened on the top of the transport box, and sealing covers are placed in the inspection ports.

7. A coal mine scraper conveyor according to claim 6, characterized in that: A hollow interlayer is provided inside the friction scraper, and a plurality of leakage holes communicating with the hollow interlayer are provided on the surface of the friction scraper.

8. A coal mine scraper conveyor according to claim 7, characterized in that: The side of the friction scraper that rubs against the transport box is rotatably connected with a friction roller, and the friction roller is partially located in the hollow interlayer of the friction scraper.

9. A coal mine scraper conveyor according to claim 8, characterized in that: A support pipe for support is fixedly connected to the bottom of the hot melt box. Both ends of the support pipe penetrate to the outside of the transport box, and the support pipe is connected to the inside of the hot melt box. A filling valve is installed at the end of one of the support pipes.

10. A coal mine scraper conveyor according to claim 9, characterized in that: A fan is installed on the outer side of one of the power cabinets, with the output end of the fan facing the power cabinet, and a dust collector is installed on the other side of the power cabinet.

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