A mine TBM rear matching belt conveyor automatic slag cleaning and backfilling device

Abstract

This utility model discloses an automatic slag removal and backfilling device for a mining TBM-equipped belt conveyor, relating to the field of coal mine roadway construction technology. It includes a support frame and a plow-shaped coal sweeper. Two sets of support frames are respectively installed above the top of the conveyor tail buffer frame connected to the TBM-equipped trailer. One end of each support frame is connected to a hinged seat. A plow-shaped coal sweeper is installed between the front ends of the two sets of support frames. A chain is located at the top center of the plow-shaped coal sweeper. A cylinder is mounted on the TBM-equipped trailer, with its output end connected to one end of the chain. This utility model connects the cylinder output end to one end of the chain on the plow-shaped coal sweeper. By controlling the extension and retraction of the cylinder output end, the support frame can be rotated, causing the bottom of the plow-shaped coal sweeper to make close contact with the conveyor belt surface. When the conveyor is running, the plow-shaped coal sweeper scrapes the slag on the belt surface through friction, automatically backfilling the slag to the bottom of the roadway arch on both sides of the belt conveyor.

Description

Technical Field

[0001] This utility model relates to the field of coal mine roadway construction technology, and in particular to an automatic slag removal and backfilling device for a mine TBM-equipped belt conveyor. Background Technology

[0002] Currently, the cross-sectional shape of tunnels excavated by tunnel boring machines in mines is mostly circular. To meet the needs of pedestrians and transportation, a delayed bottom backfilling method is generally used to treat the tunnel floor arch. Bottom backfilling typically uses materials such as crushed gangue and concrete, which are obtained either by transporting materials from outside or by utilizing gangue generated within the tunnel itself. Compared to transporting materials from outside for bottom backfilling, utilizing gangue generated within the tunnel itself offers better economic benefits, effectively reducing material costs, transportation costs, labor costs, gangue hoisting costs, and environmental costs associated with gangue stockpiling. Therefore, using crushed gangue generated within the tunnel itself for backfilling is a common practice in coal mining enterprises.

[0003] In existing technologies, the debris generated during tunnel excavation needs to be swept from the conveyor belt to the tunnel floor. Manually sweeping debris from a running conveyor belt poses significant safety risks. Typically, this is done by organizing personnel to stop the machine and work together at a suitable time. This method requires a large workforce, involves high labor intensity, and cannot be operated continuously, resulting in low efficiency, slow backfilling progress, and a long delay in the face, hindering the efficient and rapid excavation of the tunnel boring machine (TBM). Therefore, this utility model proposes an automatic debris removal and backfilling device for a mining TBM's downstream conveyor belt, to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an automatic slag removal and backfilling device for a mining TBM-equipped belt conveyor. This device involves installing a plow-shaped coal sweeper between the front ends of two support frames. A cylinder is mounted on the TBM's rear trailer, and its output end is connected to one end of a chain on the plow-shaped coal sweeper. By controlling the extension and retraction of the cylinder's output end, the support frames can be rotated, ensuring close contact between the bottom of the plow-shaped coal sweeper and the conveyor belt surface. During conveyor operation, the plow-shaped coal sweeper scrapes away slag and gravel from the belt surface through friction, automatically backfilling the slag and gravel into the arch bottom of the roadways on both sides of the belt conveyor.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An automatic slag removal and backfilling device for a mining TBM-equipped belt conveyor includes a support frame and a plow-shaped coal sweeping frame. The support frame is provided in two sets, which are respectively installed on the top of the tail buffer frame of the conveyor connected to the TBM-equipped trailer. Each of the top two sides of the tail buffer frame of the conveyor is provided with a hinge seat. One end of the support frame is connected to the hinge seat. A plow-shaped coal sweeping frame is installed between the front ends of the two sets of support frames. A chain is provided at the middle of the top of the plow-shaped coal sweeping frame. A cylinder is provided on the TBM-equipped trailer, and the output end of the cylinder is connected to one end of the chain. The plow-shaped coal sweeping frame includes a plow-shaped mounting plate and a plow-shaped coal sweeping plate. The shape and size of the plow-shaped coal sweeping plate are adapted to the plow-shaped mounting plate. The lower end of the plow-shaped coal sweeping plate extends out of the bottom of the plow-shaped mounting plate. The plow-shaped coal sweeping plate and the plow-shaped mounting plate are detachable and installable.

[0006] A further improvement is that a diagonal bracing channel steel is installed on the support frame by a first mounting bolt, and one end of the diagonal bracing channel steel is connected to the top of the plow-shaped mounting plate by a second mounting bolt.

[0007] A further improvement is that the bottom of the plow-shaped mounting plate is provided with a plow-shaped groove, and the upper end of the plow-shaped coal sweeping plate is inserted into the plow-shaped groove.

[0008] A further improvement is that the plow-shaped mounting plate is provided with through fixing holes, and multiple through fixing holes are provided in a group along the height direction of the plow-shaped mounting plate.

[0009] A further improvement is that the plow-shaped coal sweeping plate is provided with a mating hole adapted to the through fixing hole, and the through fixing hole and the mating hole are connected by fixing bolts and nuts.

[0010] A further improvement is that: a first positioning half-groove is provided on one side wall of the plow-shaped groove, and multiple sets of the first positioning half-groove are provided; a second positioning half-groove is provided on one side wall of the plow-shaped coal sweeping plate; and a positioning rod is provided inside the first positioning half-groove after the second positioning half-groove is aligned with it.

[0011] The beneficial effects of this utility model are as follows: This utility model hinges two support frames to the tail buffer frame of the conveyor connected to the trailer of the TBM, and then installs a plow-shaped coal sweeper between the front ends of the two support frames. By setting a cylinder on the trailer of the TBM and connecting the output end of the cylinder to one end of the chain on the plow-shaped coal sweeper, the support frame can be rotated by controlling the extension and retraction of the output end of the cylinder, so that the bottom of the plow-shaped coal sweeper is in close contact with the conveyor belt surface. When the conveyor is running, the plow-shaped coal sweeper scrapes the slag on the belt surface through the friction between it and the belt surface, thereby automatically backfilling the slag to the bottom of the roadway arch on both sides of the belt conveyor. There is no need for manual sweeping of the slag off the belt surface, which is highly safe and effectively reduces the consumption of manual labor. Attached Figure Description

[0012] Figure 1 This is a top view of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a three-dimensional schematic diagram of the plow-shaped coal sweeper structure of this utility model; Figure 4 This is a three-dimensional schematic diagram of the plow-shaped coal sweeping plate structure of this utility model.

[0013] The components include: 1. Support frame; 2. Plow-shaped coal sweeping frame; 201. Plow-shaped mounting plate; 202. Plow-shaped coal sweeping plate; 203. Plow-shaped trough; 204. Through fixing hole; 205. Butt joint hole; 206. Fixing bolt; 3. TBM rear trailer; 4. Conveyor tail buffer frame; 5. Hinge seat; 6. Chain; 7. Cylinder; 8. Diagonal brace channel steel; 9. First positioning half-groove; 10. Second positioning half-groove; 11. Positioning rod. Detailed Implementation

[0014] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model. Example 1

[0015] according to Figure 1-4 As shown in the figure, this embodiment proposes an automatic slag removal and backfilling device for a mining TBM-equipped belt conveyor, including a support frame 1 and a plow-shaped coal sweeping frame 2. The support frame 1 has two sets, each set positioned above the top of the conveyor tail buffer frame 4 connected to the TBM-equipped trailer 3 on both sides. Each of the top two sides of the conveyor tail buffer frame 4 is equipped with a hinge seat 5. One end of each support frame 1 is connected to the hinge seat 5. A plow-shaped coal sweeping frame is installed between the front ends of the two sets of support frames 1. 2. A chain 6 is provided at the middle of the top of the plow-shaped coal sweeper 2. A cylinder 7 is provided on the trailer 3 that is matched with the TBM. The output end of the cylinder 7 is connected to one end of the chain 6. The plow-shaped coal sweeper 2 includes a plow-shaped mounting plate 201 and a plow-shaped coal sweeping plate 202. The shape and size of the plow-shaped coal sweeping plate 202 are adapted to the plow-shaped mounting plate 201. The lower end of the plow-shaped coal sweeping plate 202 extends out of the bottom of the plow-shaped mounting plate 201. The plow-shaped coal sweeping plate 202 and the plow-shaped mounting plate 201 can be detached and installed.

[0016] When using the automatic slag removal and backfilling device for the mining TBM and its matching belt conveyor, the controller of cylinder 7 is connected to the pneumatic control box. The pneumatic control box controls the output end of cylinder 7 to extend, causing the support frame 1 to fall downwards until the plow-shaped coal sweeping plate 202 of the plow-shaped coal sweeping frame 2 lands on the belt surface of the belt conveyor. When the belt conveyor moves, the plow-shaped coal sweeping plate 202 scrapes the slag on the belt surface to both sides, achieving backfilling to the bottom of the roadway arch. Then, the swept-off gangue is simply leveled by hand to meet the requirements of bottom backfilling.

[0017] A diagonal bracing channel steel 8 is mounted on the support frame 1 via a first mounting bolt. One end of the diagonal bracing channel steel 8 is connected to the top of the plow-shaped mounting plate 201 via a second mounting bolt. By setting the diagonal bracing channel steel 8, this utility model can improve the structural stability between the support frame 1 and the plow-shaped coal sweeping frame 2, and the support frame 1, the plow-shaped coal sweeping frame 2, and the diagonal bracing channel steel 8 can form a stable integrated structure.

[0018] The plow-shaped mounting plate 201 has a plow-shaped groove 203 at its bottom, and the upper end of the plow-shaped coal sweeping plate 202 is inserted into the plow-shaped groove 203. The plow-shaped mounting plate 201 has through-holes 204, and multiple sets of through-holes 204 are arranged in groups along the height direction of the plow-shaped mounting plate 201. The plow-shaped coal sweeping plate 202 has mating holes 205 that fit the through-holes 204, and the through-holes 204 and the mating holes 205 are connected by fixing bolts 206 and nuts. This design allows for quick assembly and disassembly of the plow-shaped coal sweeping plate 202, facilitating replacement. The plow-shaped coal sweeping plate 202 of this invention is made of rubber to reduce friction on the belt surface. Example 2

[0019] according to Figure 1-4 As shown in the figure, this embodiment proposes an automatic slag removal and backfilling device for a mining TBM-equipped belt conveyor, including a support frame 1 and a plow-shaped coal sweeping frame 2. The support frame 1 has two sets, each set positioned above the top of the conveyor tail buffer frame 4 connected to the TBM-equipped trailer 3 on both sides. Each of the top two sides of the conveyor tail buffer frame 4 is equipped with a hinge seat 5. One end of each support frame 1 is connected to the hinge seat 5. A plow-shaped coal sweeping frame is installed between the front ends of the two sets of support frames 1. 2. A chain 6 is provided at the middle of the top of the plow-shaped coal sweeper 2. A cylinder 7 is provided on the trailer 3 that is matched with the TBM. The output end of the cylinder 7 is connected to one end of the chain 6. The plow-shaped coal sweeper 2 includes a plow-shaped mounting plate 201 and a plow-shaped coal sweeping plate 202. The shape and size of the plow-shaped coal sweeping plate 202 are adapted to the plow-shaped mounting plate 201. The lower end of the plow-shaped coal sweeping plate 202 extends out of the bottom of the plow-shaped mounting plate 201. The plow-shaped coal sweeping plate 202 and the plow-shaped mounting plate 201 can be detached and installed.

[0020] The plow-shaped trough 203 has a first positioning half-groove 9 on one side wall, and multiple sets of the first positioning half-groove 9 are provided. The plow-shaped coal sweeping plate 202 has a second positioning half-groove 10 on one side wall. After the first positioning half-groove 9 and the second positioning half-groove 10 are aligned, a positioning rod 11 is provided inside. In this utility model, by setting multiple first positioning half-groove 9 and setting second positioning half-groove 10 on one side wall of the plow-shaped coal sweeping plate 202, when the second positioning half-groove 10 is aligned with the first positioning half-groove 9 at different positions, the pre-positioning installation of the plow-shaped coal sweeping plate 202 can be achieved by inserting the positioning rod 11, which facilitates the subsequent fixing of the plow-shaped coal sweeping plate 202 inside the plow-shaped trough 203 using fixing bolts 206 and nuts. Multiple first positioning half-grooves 9 in the height direction of the plow-shaped trough 203 allow the plow-shaped coal sweeping plate 202 to be positioned by positioning rod 11 after being raised and lowered inside the plow-shaped trough 203. This allows the plow-shaped coal sweeping plate 202 to continue sweeping away the slag and stone on the surface by adjusting the installation height of the plow-shaped coal sweeping plate 202 when it is driven to fall to the limit position by the cylinder 7.

[0021] This invention involves hinged installation of two support frames 1 on the conveyor tail buffer frame 4, which is connected to the TBM rear trailer 3. A plow-shaped coal sweeper 2 is then installed between the front ends of the two support frames. A cylinder is installed on the TBM rear trailer 3, and the output end of the cylinder is connected to one end of the chain 6 on the plow-shaped coal sweeper 2. By controlling the extension and retraction of the output end of the cylinder 7, the support frame 1 can be rotated, so that the bottom of the plow-shaped coal sweeper 2 is in close contact with the conveyor belt surface. When the conveyor is running, the plow-shaped coal sweeper 2 scrapes the slag on the belt surface through the friction between it and the belt surface, thereby automatically backfilling the slag to the bottom of the roadway arch on both sides of the belt conveyor. There is no need for manual sweeping of the slag off the belt surface, which is highly safe and effectively reduces the consumption of manual labor.

[0022] 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic slag removal and backfilling device for a mining TBM-connected belt conveyor, characterized in that: The device includes a support frame (1) and a plow-shaped coal sweeper (2). The support frame (1) is provided in two sets. The two sets of support frames (1) are respectively set on the top of the conveyor tail buffer frame (4) connected to the TBM rear trailer (3). The top of the conveyor tail buffer frame (4) is provided with a hinge seat (5). One end of the support frame (1) is connected to the hinge seat (5). The plow-shaped coal sweeper (2) is installed between the front ends of the two sets of support frames (1). The plow-shaped coal sweeper (2) is provided with a chain (6) at the middle of the top of the plow-shaped coal sweeper (2). The TBM rear trailer (3) is provided with a cylinder (7). The output end of the cylinder (7) is connected to one end of the chain (6). The plow-shaped coal sweeper (2) includes a plow-shaped mounting plate (201) and a plow-shaped coal sweeping plate (202). The plow-shaped coal sweeping plate (202) is adapted to the shape and size of the plow-shaped mounting plate (201). The lower end of the plow-shaped coal sweeping plate (202) extends out of the bottom of the plow-shaped mounting plate (201). The plow-shaped coal sweeping plate (202) and the plow-shaped mounting plate (201) are detachable and installable.

2. The automatic slag removal and backfilling device for a mining TBM-connected belt conveyor according to claim 1, characterized in that: A diagonal bracing channel steel (8) is installed on the support frame (1) by a first mounting bolt. One end of the diagonal bracing channel steel (8) is connected to the top of the plow-shaped mounting plate (201) by a second mounting bolt.

3. The automatic slag removal and backfilling device for a mining TBM-connected belt conveyor according to claim 1, characterized in that: The bottom of the plow-shaped mounting plate (201) is provided with a plow-shaped groove (203), and the upper end of the plow-shaped coal sweeping plate (202) is inserted into the plow-shaped groove (203).

4. The automatic slag removal and backfilling device for a mining TBM-connected belt conveyor according to claim 3, characterized in that: The plow-shaped mounting plate (201) is provided with through fixing holes (204), and multiple through fixing holes (204) are provided in a group along the height direction of the plow-shaped mounting plate (201).

5. The automatic slag removal and backfilling device for a mining TBM-equipped belt conveyor according to claim 4, characterized in that: The plow-shaped coal sweeping plate (202) is provided with a mating hole (205) that is adapted to the through fixing hole (204). The through fixing hole (204) and the mating hole (205) are connected by fixing bolts (206) and nuts.

6. The automatic slag removal and backfilling device for a mining TBM-equipped belt conveyor according to claim 3, characterized in that: The plow-shaped groove (203) has a first positioning half groove (9) on one side wall. The first positioning half groove (9) has multiple sets. The plow-shaped coal sweeping plate (202) has a second positioning half groove (10) on one side wall. After the first positioning half groove (9) and the second positioning half groove (10) are aligned, a positioning rod (11) is provided inside.

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