Coal seam roof support

Abstract

The utility model relates to the technical field of roof supports, and discloses a coal seam roof support. The coal seam roof support comprises a supporting structure assembly, the upper end of the supporting structure assembly is connected and provided with a reinforcing protection assembly, the upper end of the reinforcing protection assembly is connected and provided with a steel frame, the upper end of the steel frame is fixedly provided with a stress rod, and the upper end of the stress rod is connected and provided with a stress plate; the upper end of the reinforcing protection assembly is connected with the water source concentration assembly, the upper end of the water source concentration assembly is provided with the roof body, and the situation that a newly mined coal seam is often covered with goaf water, goaf water disasters occur day by day in the mining process, mining-induced fractures of a goaf are damaged again when coal is mined, and the coal mining efficiency is improved is effectively prevented. The technical problem that the development of the coal industry is severely restricted due to the fact that the surface water enters a mine due to subsequent communication of the surface water and the safety production of the subsequent mine is greatly threatened is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to roof support technical field, concretely is a coal seam roof support. BACKGROUND

[0002] After long -term large -scale exploitation, the shallow coal resources of many coalfields in our country have gradually exhausted, the average exploitation depth has reached about 600m at present, and extends to the depth with the speed of 8~12m per year, and plans to exploit the coal resources in the deeper place. After the shallow coal seam exploitation, a large area of goaf destruction area is left, the stress balance state of the rock mass is broken after the deep coal seam exploitation, stress is redistributed, causes the roof to sink, breaks down, the fracture develops upward, the permeability of the rock mass in the fracture zone increases sharply, and the water inrush from the old goaf is common. The old goaf water inrush has the characteristics of short time, large water quantity and strong destructive, and can easily cause the major accidents of head and surface submergence and injury, and seriously threatens the safety production of the mine.

[0003] The existing reference announcement number CN211397603U discloses a coal seam roof waterproof support structure, which is composed of a plurality of multilayer plate structures supported by columns to support the coal seam roof. Each multilayer plate structure is composed of a support top plate, a side guard plate, and a reinforced bottom plate from top to bottom. The side guard plate connects the support top plate and the reinforced bottom plate to form a ventilation cavity with open ends. A U-shaped groove is arranged in the ventilation cavity with its opening facing upward, forming a closed water guide pipe with open ends. A drainage hole is arranged on each closed water guide pipe to guide the water from the coal seam roof into the closed water guide pipe. The waterproof support structure can support the coal seam roof while collecting and guiding the scattered water to improve the working environment and support the stability of the coal seam roof.

[0004] Based on the above patent search and combined with the existing technology, it is found that the newly mined coal seam is often overlaid by old goaf water, and the old goaf water disaster is increasingly common during the mining process. The mining cracks in the goaf are damaged again during the mining of coal, causing the surface water to enter the mine, which poses a great threat to the safety production of the subsequent mine and seriously restricts the development of the coal industry. These problems affect the use of the device. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] The utility model discloses a coal seam roof support possesses the advantage of effectively preventing the new exploitation coal seam often overlying old empty water, and the old empty water disaster is increasingly more and more in the mining process, and when the coal is exploited, will make the mining fracture of mined -out area again damage, causes the follow -up communication surface water and leads to the surface water body into the mine, causes the follow -up mine's safety production to bring very big threat, seriously restricts the development of coal industry's shortcoming, solved above -mentioned technical problem.

[0007] Technical scheme

[0008] In order to realize above-mentioned purpose, the utility model provides following technical scheme: a coal seam roof support, including support structure subassembly, the upper end of support structure subassembly is connected and is installed with the force plate of upper end is reinforced through steel frame and stressed rod, steel frame is the combination of triangular structure and stressed rod, the reinforcing protection subassembly that supports between reinforcing plate and force plate, the upper end of reinforcing protection subassembly is installed with the drainage ditch of top plate body upper end and transports the water of upper end to both sides, the left and right sides of top plate body are installed with the concentration groove, the lower end of concentration groove is installed with the delivery pipe, and the water source is concentrated and stored through concentration groove, and the water source concentration subassembly is discharged through the delivery pipe of lower end;

[0009] The upper end of reinforcing protection subassembly is connected and installed with steel frame, the upper end of steel frame is fixedly installed with stressed rod, the upper end of stressed rod is connected and installed with force plate, and the force plate is connected and installed at the upper end of steel frame, and the force plate is in the shape of arch, facilitating subsequent dispersion of the degree of extrusion of the upper end.

[0010] The upper end of water source concentration subassembly is installed with top plate body, the inside of top plate body is fixedly installed with reinforcing interlayer, the upper end of top plate body is fixedly installed with drainage ditch, the left and right sides of top plate body are connected and installed with concentration groove, the lower end of concentration groove is connected and installed with delivery pipe, and the concentration groove is connected and installed at the upper end of both sides of top plate body, and the water source discharged through drainage ditch is concentrated and stored through concentration groove, and the water source is discharged through the delivery pipe of lower end.

[0011] As a preferred technical scheme of the utility model, the upper end of the support structure subassembly is connected and installed with a placing plate, and the upper end of the placing plate is fixedly installed with a support rod, the upper end of the support rod is connected and installed with a connecting block, the upper end of the connecting block is connected and installed with a fixed rod, the upper end of the fixed rod is connected and installed with a shielding cloth, and the fixed rod is connected and installed at the upper end of the connecting block, facilitating subsequent installation of the shielding cloth at the lower end, facilitating subsequent protection of the two sides of the roadway, and preventing subsequent stone blocks from falling onto the upper end of the road.

[0012] As the preferred technical scheme of the utility model, the upper end of the reinforcing protection assembly is connected with a reinforcing plate, the reinforcing plate connects the steel frame at the upper end, and the reinforcing plate is connected and installed at the upper end of the connecting block, thereby facilitating the subsequent protection of the upper end of the roadway.

[0013] As the preferred technical scheme of the utility model, the upper end of the reinforcing protection assembly is connected with a reinforcing plate, the reinforcing plate connects the steel frame at the upper end, and the reinforcing plate is connected and installed at the upper end of the connecting block, thereby facilitating the subsequent protection of the upper end of the roadway.

[0014] As the preferred technical scheme of the utility model, the upper end of the reinforcing protection assembly is connected with a reinforcing plate, the reinforcing plate connects the steel frame at the upper end, and the reinforcing plate is connected and installed at the upper end of the connecting block, thereby facilitating the subsequent protection of the upper end of the roadway.

[0015] As the preferred technical scheme of the utility model, the upper end of the reinforcing protection assembly is connected with a reinforcing plate, the reinforcing plate connects the steel frame at the upper end, and the reinforcing plate is connected and installed at the upper end of the connecting block, thereby facilitating the subsequent protection of the upper end of the roadway.

[0016] As the preferred technical scheme of the utility model, the upper end of the reinforcing protection assembly is connected with a reinforcing plate, the reinforcing plate connects the steel frame at the upper end, and the reinforcing plate is connected and installed at the upper end of the connecting block, thereby facilitating the subsequent protection of the upper end of the roadway.

[0017] As the preferred technical scheme of the utility model, the upper end of the reinforcing protection assembly is connected with a reinforcing plate, the reinforcing plate connects the steel frame at the upper end, and the reinforcing plate is connected and installed at the upper end of the connecting block, thereby facilitating the subsequent protection of the upper end of the roadway.

[0018] Compared with the prior art, the utility model provides a coal seam roof support with the following beneficial effects:

[0019] 1.The utility model discloses a whole device setting, reinforcing protection subassembly installs reinforcing plate, reinforcing plate connects the steel frame of upper end, and the upper end of the steel frame is supported and is reinforced through the triangle structure of steel frame, and the both sides of steel frame are connected and install the stress bar, and the upper end of stress bar is connected with stress plate, and the pressure of stress plate upper end is supported conveniently, and the top plate body is installed in water source concentration subassembly, and the inside fixed mounting of top plate body has reinforcing interlayer, and the inside of reinforcing interlayer is slag aggregate interlayer, and this interlayer support mode uses light slag bead concrete, and it has higher compressive strength, and slag bead aggregate can form compact structure after special processing, so that concrete can show good compression resistance when being subjected to external force, and the upper end of top plate body is installed with drainage ditch, and the water source of top plate upper end is discharged through drainage ditch, and the both sides of drainage ditch are installed with concentration groove, and the water source of drainage ditch is concentrated and discharged through concentration groove, effectively prevent the new mining coal seam from often overlying old goaf water, and the goaf water disaster is increasingly more and more in the mining process, and the mining crack of goaf is damaged again when mining coal, causes the follow-up communication surface water to make surface water body enter the mine, causes the safety production of subsequent mine to bring great threat, seriously restricts the development of coal industry. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is whole structure schematic diagram of the utility model;

[0021] Figure 2 It is support structure subassembly schematic diagram of the utility model;

[0022] Figure 3 It is reinforcing protection subassembly schematic diagram of the utility model;

[0023] Figure 4 It is water source concentration subassembly schematic diagram of the utility model;

[0024] Among them: 1, support structure subassembly;101, placement plate;102, support rod;103, connecting block;104, fixed rod;105, shielding cloth;2, reinforcing protection subassembly;201, reinforcing plate;202, steel frame;203, stress bar;204, stress plate;3, water source concentration subassembly;301, top plate body;302, protection layer;303, reinforcing interlayer;304, drainage ditch;305, concentration groove;306, delivery pipe. DETAILED DESCRIPTION

[0025] The embodiment of the utility model is further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0026] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through an intermediate medium.The specific meaning of the above terms in the utility model can be understood according to the specific circumstances for ordinary skilled persons in the art.

[0028] Please refer to Figure 1 - Figure 4 In the embodiment, a coal seam roof support comprises a support structure assembly 1, a reinforcing protection assembly 2 is connected and installed at the upper end of the support structure assembly 1, a steel frame 202 is connected and installed at the upper end of the reinforcing protection assembly 2, a stress rod 203 is fixedly installed at the upper end of the steel frame 202, a stress plate 204 is connected and installed at the upper end of the stress rod 203, a water source concentration assembly 3 is connected and installed at the upper end of the reinforcing protection assembly 2, a roof body 301 is installed at the upper end of the water source concentration assembly 3, a reinforcing interlayer 303 is fixedly installed in the inside of the roof body 301, a drainage ditch 304 is fixedly installed at the upper end of the roof body 301, concentration grooves 305 are connected and installed at the left and right sides of the roof body 301, conveying pipes 306 are connected and installed at the lower ends of the concentration grooves 305, the reinforcing protection assembly 2 is connected and installed at the upper end of the connecting block 103 in the support structure assembly 1, and the water source concentration assembly 3 is connected and installed at the upper end of the stress plate 204 in the reinforcing protection assembly 2.

[0029] Through the above structure, the support structure assembly 1 supports the upper end reinforcing protection assembly 2 and the water source concentrating assembly 3 by the internal support rod 102, facilitating the use of the subsequent overall device, the reinforcing protection assembly 2 reinforces the upper end stress plate 204 by the steel frame 202 and the stress rod 203, the steel frame 202 is a triangular structure combined with the stress rod 203, supporting between the reinforcing plate 201 and the stress plate 204, the water source concentrating assembly 3 transports water on the upper end to both sides through the drainage ditch 304 on the upper end of the top plate body 301, the left and right sides of the top plate body 301 are provided with concentrating grooves 305, the lower end of the concentrating grooves 305 is provided with a conveying pipe 306, the water source is concentrated and stored through the concentrating grooves 305, and is discharged through the lower end conveying pipe 306.

[0030] Please refer to Figure 1 - Figure 4 The upper end of the support structure assembly 1 is connected and installed with a placing plate 101, and the upper end of the placing plate 101 is fixedly installed with a support rod 102, the upper end of the support rod 102 is connected and installed with a connecting block 103, the upper end of the connecting block 103 is connected and installed with a fixed rod 104, the upper end of the fixed rod 104 is connected and installed with a shielding cloth 105, the support rod 102 is a telescopic structure, the inside of the connecting block 103 is fixedly installed with a penetrating slot, the both sides of the fixed rod 104 are fixedly installed with an insertion plate, and the shielding cloth 105 is a detachable structure.

[0031] Through the above structure, the support rod 102 on the upper end is fixedly installed through the installation of the placing plate 101, and the subsequent overall structure is installed in the inside of the roadway, the support rod 102 is fixedly installed on the upper end of the placing plate 101, and the support rod 102 is a telescopic structure, facilitating the subsequent height adjustment of the upper end overall structure, the connecting block 103 is connected and installed on the upper end of the support rod 102, and the inside of the connecting block 103 is provided with a penetrating slot, facilitating the subsequent connection and installation of the fixed rod 104, the fixed rod 104 is connected and installed on the upper end of the connecting block 103, facilitating the subsequent installation of the lower end shielding cloth 105, facilitating the subsequent protection of the both sides of the roadway, preventing the subsequent stone from falling on the upper end of the road.

[0032] Please refer to Figure 1 - Figure 4 The upper end of the reinforcing protection assembly 2 is connected and installed with a reinforcing plate 201, the reinforcing plate 201 is connected and installed on the upper end of the connecting block 103, the steel frame 202 is a triangular structure, the lower end of the stress rod 203 is connected with the steel frame 202, and the upper end is connected with the stress plate 204, and the stress plate 204 is an arch-shaped structure.

[0033] Through the above structure: the upper end of the steel frame 202 is connected by mounting the reinforcing plate 201, and the reinforcing plate 201 is connected and mounted at the upper end of the connecting block 103, which facilitates subsequent protection of the upper end of the roadway. The steel frame 202 is triangularly connected and mounted at the upper end of the reinforcing plate 201, and is connected with the stress rod 203 for use, which facilitates subsequent reinforcement and support of the upper end of the stress plate 204. The stress plate 204 is connected and mounted at the upper end of the steel frame 202, and is arched, which facilitates subsequent dispersion of the pressing force at the upper end.

[0034] Please refer to Figure 1 - Figure 4 The upper end of the water source concentrating assembly 3 is provided with a protective layer 302, the top plate body 301 is arc-shaped, the protective layer 302 is fixedly installed at the front and rear ends of the upper end of the top plate body 301, and the number of the drainage ditches 304 is two. The inside of the concentrating groove 305 is provided with a heightening structure on both sides.

[0035] Through the above structure: the upper end of the steel frame 202 is connected by mounting the reinforcing plate 201, and the reinforcing plate 201 is connected and mounted at the upper end of the connecting block 103, which facilitates subsequent protection of the upper end of the roadway. The steel frame 202 is triangularly connected and mounted at the upper end of the reinforcing plate 201, and is connected with the stress rod 203 for use, which facilitates subsequent reinforcement and support of the upper end of the stress plate 204. The stress plate 204 is connected and mounted at the upper end of the steel frame 202, and is arched, which facilitates subsequent dispersion of the pressing force at the upper end.

[0036] In use, first, the placement plate 101 is placed to the ground of the roadway, the upper end structure is supported and connected, the upper end of the placement plate 101 is fixedly installed with the support rod 102, the support rod 102 is a telescopic structure, the height of the upper end is adjusted through the support rod 102, the upper end of the support rod 102 is connected and installed with the connecting block 103, the upper end of the connecting block 103 is installed with the penetrating slot, the shielding cloth 105 is connected to the penetrating slot in the upper end of the connecting block 103 through the upper end fixed rod 104, the shielding cloth 105 is connected and installed, the two sides of the support structure are protected through the shielding cloth 105, subsequent stone block is prevented from falling, the upper end of the connecting block 103 is connected and installed with the reinforcing plate 201, the upper end of the reinforcing plate 201 is installed with the steel frame 202, the steel frame 202 is a triangular structure, and the steel frame 202 is connected with the stress rod 203 on the two sides, the pressure borne by the stress plate 204 on the upper end is dispersed through the steel frame 202 and the stress rod 203, so that the pressure of the working face is reduced and the roof breaking is controlled, the water damage risk is reduced, the upper end of the stress plate 204 is connected and installed with the roof body 301, the inside of the roof body 301 is fixedly installed with the reinforcing interlayer 303, the inside of the reinforcing interlayer 303 is a slag aggregate interlayer, this interlayer support mode uses light slag bead concrete, which has high compressive strength, the slag bead aggregate is treated specially, can form a compact structure, so that the concrete can show good compression resistance when subjected to external force, the whole structure is conveniently reinforced, the upper end of the roof body 301 is fixedly installed with the drainage ditch 304, and the left and right sides of the roof body 301 are installed with the concentration groove 305, the water source on the upper end of the roof body 301 is discharged through the drainage ditch 304, and the water source is concentrated and conveyed into the concentration groove 305, the lower end of the concentration groove 305 is fixedly installed with the conveying pipe 306, and the water source is discharged through the conveying pipe 306 when flowing into the concentration groove 305.

[0037] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A coal seam roof support, characterized in that, The system includes a support structure component (1), a reinforcement and protection component (2) connected to the upper end of the support structure component (1), a steel frame (202) connected to the upper end of the reinforcement and protection component (2), a force-bearing rod (203) fixedly installed at the upper end of the steel frame (202), a force-bearing plate (204) connected to the upper end of the force-bearing rod (203), a water source concentration component (3) connected to the upper end of the reinforcement and protection component (2), a top plate body (301) installed at the upper end of the water source concentration component (3), a reinforcement interlayer (303) fixedly installed inside the top plate body (301), a drainage ditch (304) fixedly installed at the upper end of the top plate body (301), a concentration trough (305) connected to the left and right sides of the top plate body (301), and a conveying pipe (306) connected to the lower end of the concentration trough (305).

2. The coal seam roof support according to claim 1, characterized in that, The upper end of the support structure component (1) is connected to and installed with a placement plate (101), and a support rod (102) is fixedly installed on the upper end of the placement plate (101). A connecting block (103) is connected to and installed on the upper end of the support rod (102), a fixing rod (104) is connected to and installed on the upper end of the connecting block (103), and a shielding cloth (105) is connected to and installed on the upper end of the fixing rod (104).

3. The coal seam roof support according to claim 1, characterized in that, The upper end of the reinforced protection component (2) is connected to a reinforcing plate (201).

4. A coal seam roof support according to claim 1, characterized in that, The upper end of the water source concentration component (3) is equipped with a protective layer (302).

5. A coal seam roof support according to claim 1, characterized in that, The reinforcement and protection component (2) is connected to the upper end of the connecting block (103) in the support structure component (1), and the water source concentration component (3) is connected to the upper end of the load-bearing plate (204) in the reinforcement and protection component (2).

6. A coal seam roof support according to claim 2, characterized in that, The support rod (102) is a telescopic structure, the connecting block (103) has a through slot fixedly installed inside, the fixing rod (104) has an insertion plate fixedly installed on both sides, and the shielding cloth (105) is a detachable structure.

7. A coal seam roof support according to claim 3, characterized in that, The reinforcing plate (201) is connected and installed on the upper end of the connecting block (103). The steel frame (202) is a triangular structure. The lower end of the force-bearing rod (203) is connected to the steel frame (202), and the upper end is connected to the force-bearing plate (204). The force-bearing plate (204) is an arched structure.

8. A coal seam roof support according to claim 4, characterized in that, The top plate body (301) has an arc-shaped structure. The protective layer (302) is fixedly installed at the front and rear ends of the top plate body (301). There are two drainage ditches (304). The inner sides of the central trough (305) are raised structures.

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