Coal mine coal slime desilting and coal mining integrated equipment and method

Abstract

The present invention relates to the technical field of mine desilting and coal mining, and in particular to an integrated device and method for coal mine coal slime desilting and coal mining, comprising a positioning cylinder group, the rear end of which is adjustably hinged on a coal mining machine body, the front end of which is connected to a coal slime receiving mechanism, which is used for integrated coal mining of water-containing coal seams, and a transfer machine system is installed on the coal mining machine body, which is used to realize the transportation of the collected coal to the downstream. When the equipment follows the coal mining machine to work, it can effectively carry out integrated collection of water-containing coal blocks for coal seam conditions with accumulated water, and can effectively realize the integrated treatment of coal blocks and water-coal liquid in the accumulated water area and realize diversion and export, effectively avoiding the operation of separate water pumping, and better ensuring the coordination and unity of efficient drainage and coal mining under such complex coal seam conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of mine desilting and coal mining, and in particular to a machine capable of realizing rapid coal mining and drainage under working conditions where there is water-coal mixture or wet coal slime in a coal mine, and corresponding methods for coal mining, desilting and drainage, and in particular to an integrated equipment and method for coal mine coal slime desilting and coal mining. Background Art

[0002] Coal mining under water bodies includes mining under surface water bodies, water-bearing sand layer water bodies and bedrock water bodies. When mining under water bodies, it is necessary to prevent water or mud and sand from the overlying water body from bursting into the mine, and to prevent excessive increase in mine drainage costs due to increased mine water inflow;

[0003] When mining coal under water, it is necessary to ensure that the water-conducting fractures formed after the coal seam is mined do not constitute a channel for water to rush into the mine. In addition, how to quickly and safely mine the coal that has already entered the water in the mine after ensuring that the leak is sealed is also a difficulty in coal mining conditions.

[0004] There is a certain amount of residual water in the coal seam that has been flooded. Therefore, during the mining process, we need to consider not only how to complete the coal mining quickly, but also how to quickly discharge the residual water inside.

[0005] At present, in response to the above situation, the method used in water tank excavation is mainly to directly remove the sludge section formed by mixed water coal sludge by manual excavation and transportation by transfer equipment. In addition, for example, in the patent document with patent application number CN202021849835.1, a pneumatic jet pump for extracting water from a tunnel water hole is disclosed, and its main structure includes a circular tube (1), a conical tube (2) and a water inlet pipe (3); the starting end of the circular tube (1) is fixed with a conical tube (2), A drainage port (1.1) is provided at the end of the circular tube (1), and a water inlet pipe (3) is connected to the circular tube (1). The water inlet pipe (3) is located on the right side of the conical tube (2), and the water inlet pipe (3) extends below the water surface of the water pit through a pipeline; the conical tube (2) is located inside the circular tube (1), the left end of the conical tube (2) is an air inlet (2.1), and the right end is a nozzle (2.2), the diameter of the air inlet (2.1) is larger than the diameter of the nozzle (2.2), and the air inlet (2.1) is connected to the underground high-pressure air duct through a quick connector. It can be seen from the above structure that it can be used for drainage in any area of ​​the coal mine, solving the problem of being unable to directly discharge water when cleaning up water accumulation in low-lying areas of underground tunnels and water accumulation on the surface of coal slime in sedimentation tanks and water pits.

[0006] However, in reality, in this case, during the cleaning process, a certain amount of coal will often fall and be cleaned and transferred due to construction vibration. These coal slimes and coal can be used as normal coal materials to a certain extent. Directly cleaning and transporting them will cause a waste of resources.

[0007] In addition, before mining under the above conditions, mixed coal and dredging areas may be encountered at intervals, so intermittent mining and dredging are required in a continuous cycle. This operation method makes the overall coal mining efficiency relatively low and the operation is cumbersome, and continuous progress cannot be guaranteed. Equipment in different processes needs to be rotated, and the reciprocating rotation of large equipment in the coal mining tunnel also increases the difficulty of turnover.

[0008] To this end, the present application proposes a machine that can achieve rapid coal mining and drainage under conditions where there is water-coal mixture or wet coal slime in coal mines, as well as corresponding coal mining, silt removal and drainage methods, so as to better solve the problems existing in the prior art. Summary of the invention

[0009] The present invention is to solve one of the above-mentioned technical problems, and the technical solution adopted is: an integrated equipment for coal mine coal slime desilting and coal mining, which is installed in the coal mining tunnel and used and follows the coal mining machine to realize forward propulsion, including a positioning cylinder group, the rear end of which can be adjustably hinged on the coal mining machine body, and the front end of which is connected with a coal slime receiving mechanism, which is used for integrated coal mining of water-containing coal seams, and a transfer machine system is installed on the coal mining machine body, and the transfer machine system is used to realize the transportation of the collected coal to the downstream.

[0010] In any of the above schemes, it is preferred that it further includes a coal-water conveying system coordinated with the coal slime receiving mechanism, and the coal-water conveying system is used to transfer and convey the coal slime and water delivered by the coal slime receiving mechanism.

[0011] In any of the above schemes, it is preferred that the top of the coal slime receiving mechanism is open.

[0012] In any of the above schemes, it is preferred that a coal pusher is installed on the top of the front end of the coal slime receiving mechanism, and the coal pusher is used to push and transport the mined coal stones and coal blocks that fall on the coal slime receiving mechanism to one side of the transfer machine system.

[0013] In any of the above schemes, it is preferred that the coal slime receiving mechanism includes a steel receiving hopper, a discharge pipe with an electromagnetic control valve is fixedly welded to the bottom of the steel receiving hopper, and the discharge pipe is connected to the coal-water conveying system; a coal slime isolation net is detachably fixedly installed in the steel receiving hopper, and the coal slime isolation net is used for allowing small-diameter coal slime and water to pass through and for blocking coal mines and medium and large-diameter coal materials.

[0014] In any of the above schemes, it is preferred that the coal pusher includes a multi-stage telescopic coal pushing cylinder fixedly mounted on the top of the front end portion of the steel receiving hopper, and a rubber coal pushing plate is fixedly mounted on the end of the piston rod of the multi-stage telescopic coal pushing cylinder, and the rubber coal pushing plate is used to push the coal accumulated on the top of the coal slime isolation net to the downstream transfer machine system and deliver it thereto.

[0015] In any of the above schemes, it is preferred that the coal-water conveying system includes a coal slime discharge pipe screwed to the discharge pipe, and a plurality of booster peristaltic pumps are installed on the coal slime discharge pipe at intervals along its length direction, each of the booster peristaltic pumps is used to improve the efficiency and smoothness of coal slime conveying by the coal slime discharge pipe, and a vortex separator is connected to the end of the coal slime discharge pipe, and the vortex separator is used to separate coal particles and water in the coal slime, and the coal particles output by the vortex separator are sent to the coal powder conveying line, and the discharged water is sent to the drainage system.

[0016] In any of the above schemes, preferably, a coal slime suction pipe with a valve is provided at the bottom of the steel receiving hopper, a suction pump is arranged on the coal slime suction pipe, and an outlet end of the suction pump is connected to the coal slime discharge pipe.

[0017] In any of the above solutions, it is preferred that the front end of the steel receiving hopper is provided with a shovel-shaped opening 4 .

[0018] The present invention also provides a coal mine coal slime dredging and coal mining integrated method, wherein the coal mine coal slime dredging and coal mining integrated method is implemented by using the coal mine coal slime dredging and coal mining integrated equipment according to any one of claims 1 to 7, and is characterized in that it comprises the following steps:

[0019] S1: The equipment moves to the working end of the water-containing coal mud tunnel to be mined;

[0020] S2: Start the coal mining machine and transfer machine system, and keep them in working state, and keep moving forward to cut the coal seam;

[0021] S3: When the coal cutting unit moves forward to cut coal, the positioning cylinder group will drive the coal slurry receiving mechanism connected to it to achieve a certain front end downward inclination and move forward;

[0022] S4: When working in a place with coal sludge and water accumulation, the coal sludge receiving mechanism is used to realize the integrated separation and transportation of coal blocks and water liquid;

[0023] S5: Repeat the steps in formula 1 until less coal slime remains and start the suction pump;

[0024] S6: Use the suction pump to suck the remaining coal slime into the coal slime discharge pipe, and the coal slime water accumulation operation is completed;

[0025] S7: When encountering coal slime water accumulation during the advancement process, repeat the steps of S4-S6 to complete the operation;

[0026] S8: Continue to push the coal mining machine forward and cut and mine the coal in the coal seam. The unmined coal material falls directly onto the coal slime receiving mechanism and is sent into the transfer machine system through the coal pusher for outward transportation.

[0027] In any of the above schemes, it is preferred that the specific operating steps in step S4 are as follows: when working in a place where coal slime is accumulated with water, the working height is adjusted to make the top of the coal slime receiving mechanism submerge under the water-containing coal slime and delay for a certain period of time. At this time, the coal mining and cutting part can be flexibly controlled to stop, and the coal mining machine is controlled to lift upward to drive the coal slime receiving mechanism to rise. The water flow and fine coal powder in the coal slime will pass through the steel receiving hopper and be discharged into the coal-water conveying system through the discharge pipe. After the coal slime receiving mechanism is leveled, the wet coal blocks on its top are sent into the transfer machine system under the action of the coal pusher.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. When this equipment works with the coal mining machine, it can effectively carry out integrated collection of water-containing coal blocks in coal seams with water accumulation, and can effectively realize the integrated treatment of coal blocks and water-coal liquid in the water-accumulated area and realize diversion and export, effectively avoiding the operation of separate water pumping, and better ensuring the coordination and unity of efficient drainage and coal mining under such complex coal seam conditions.

[0030] 2. When using this equipment to process water-containing coal slime and coal blocks, the coal powder water liquid can be directly pumped to the downstream coal-water conveying system to improve the efficiency and effect of the conveying. At the same time, the water liquid and the coal powder particles can be separated after conveying, which better avoids the waste of coal powder particles and effectively improves the resource recovery rate.

[0031] 3. Coal mining is achieved directly during the pumping process, which effectively avoids the impact of turnover vibration caused by the separation of the two processes on the shedding of coal blocks, and effectively improves the safety of underground operations in this type of coal mine; the mined coal blocks are directly transported to the transfer machine system for transfer, which effectively ensures the efficiency of coal mining.

[0032] 4. The booster peristaltic pumps installed at intervals on the long-distance coal slime discharge pipeline of the coal-water transportation system can effectively improve the transportation power, effectively increase the transportation speed, prevent pipeline blockage during large-flow transportation, and ensure smooth transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn according to the actual scale.

[0034] Figure 1 It is a structural schematic diagram of the present invention.

[0035] Figure 2 It is a schematic diagram of the connection structure of the coal slime receiving mechanism of the present invention.

[0036] Figure 3 It is a schematic diagram of the connection structure of the coal-water transportation system of the present invention.

[0037] In the figure, 1. coal mining tunnel; 2. position adjustment cylinder group; 3. coal mining machine body; 4. shovel-shaped opening; 5. coal slime receiving mechanism; 501. steel receiving hopper; 502. discharge pipe; 503. coal slime isolation net; 6. transfer machine system; 7. multi-stage telescopic coal pushing cylinder; 8. rubber coal pushing plate; 9. coal slime discharge pipeline; 10. booster peristaltic pump; 11. vortex separator; 12. coal slime suction pipe; 13. suction pump. DETAILED DESCRIPTION

[0038] The following is a detailed description of the embodiments of the technical solution of the present invention in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present invention. Figure 1-3 as shown in .

[0039] Embodiment 1:

[0040] A coal mine coal slime desilting and coal mining integrated equipment, the coal mine coal slime desilting and coal mining integrated equipment is installed in a coal mining tunnel 1 for use and follows the coal mining machine to achieve forward advancement, including a positioning cylinder group 2, the rear end of the positioning cylinder group 2 is adjustably hinged on the coal mining machine body, the front end of the positioning cylinder group is connected to a coal slime receiving mechanism, the coal slime receiving mechanism 5 is used for integrated coal mining of water-containing coal seams, a transfer machine system 6 is installed on the coal mining machine body 3, and the transfer machine system 6 is used to transport the collected coal to the downstream.

[0041] This integrated equipment is mainly used to realize the integrated shoveling operation of water and coal for the coal slime and coal-water mixture in the water-containing coal seam, and to effectively separate the water and coal. The water is filtered out by the coal slime receiving mechanism 5 and directly enters the coal-water conveying system, and then the solid-liquid separation is achieved and then directly transported in phases to ensure the effective recycling of coal powder; at the same time, the coal blocks and large-diameter coal particles filtered out by the coal slime receiving mechanism 5 are directly accumulated on the top of the coal slime receiving mechanism 5 and are pushed to the transfer machine system 6 by the coal pusher.

[0042] In any of the above schemes, it is preferred that it further includes a coal-water conveying system coordinated with the coal slime receiving mechanism, and the coal-water conveying system is used to transfer and convey the coal slime and water delivered by the coal slime receiving mechanism.

[0043] In any of the above schemes, it is preferred that the top of the coal slime receiving mechanism is open.

[0044] In any of the above schemes, it is preferred that a coal pusher is installed on the top of the front end of the coal slime receiving mechanism, and the coal pusher is used to push and transport the mined coal stones and coal blocks that fall on the coal slime receiving mechanism to one side of the transfer machine system.

[0045] The main function of the coal pusher is to push the coal stones and coal blocks to one side of the transfer machine, thereby ensuring the smooth operation of the coal stones and coal blocks.

[0046] In any of the above schemes, it is preferred that the coal slime receiving mechanism 5 includes a steel receiving hopper 501, a discharge pipe 502 with an electromagnetic control valve is fixedly welded to the bottom of the steel receiving hopper 501, and the discharge pipe 502 is connected to the coal-water conveying system; a coal slime isolation net 503 is detachably fixedly installed in the steel receiving hopper 501, and the coal slime isolation net 503 is used for allowing small-diameter coal slime and water to pass through and for blocking coal mines and medium and large-diameter coal materials.

[0047] The inner cavity of the steel receiving hopper 501 is mainly used to contain water, and the coal slime isolation net 503 arranged on the top of the steel receiving hopper 501 can directly separate the water from the coal blocks of the water-coal mixture poured in from the top. The water directly enters the inner cavity, and the coal is blocked on the top of the coal slime isolation net 503 and accumulated, thereby realizing integrated shoveling, screening, diversion and transfer. The accumulated coal can be pushed and transferred to the downstream transfer machine for transportation and transfer under the action of the coal pusher.

[0048] In any of the above schemes, it is preferred that the coal-water conveying system includes a coal slime discharge pipe 9 screwed to the discharge pipe 502, and a plurality of booster peristaltic pumps 10 are installed on the coal slime discharge pipe 9 at intervals along its length direction, and each of the booster peristaltic pumps 10 is used to improve the efficiency and smoothness of coal slime conveying by the coal slime discharge pipe 9, and a vortex separator 11 is connected to the end of the coal slime discharge pipe 9, and the vortex separator 11 is used to separate the coal particles and water in the coal slime, and the coal particles output by the vortex separator 11 are sent to the coal powder conveying line, and the discharged water is sent to the drainage system.

[0049] The coal-water conveying system is mainly installed at the end of the discharge pipe 502, and is used to receive and lead out the water-liquid mixture containing coal powder filtered inside the inner cavity. The setting of each booster peristaltic pump 10 can ensure the dynamics and smoothness of the conveying during the pipeline conveying with a larger stroke; the conveyed mixed liquid is separated by the vortex separator 11 to realize the two-way flow of solid and liquid, and finally achieve the purpose of effectively recycling the coal powder and improving the effective utilization rate of resources.

[0050] In any of the above schemes, preferably, a coal slime suction pipe 12 with a valve is provided at the bottom of the steel receiving hopper 501 , a suction pump 13 is arranged on the coal slime suction pipe 12 , and an outlet end of the suction pump 13 is connected to the coal slime discharge pipe 9 .

[0051] The suction pump 13 can suck and discharge the remaining small amount of accumulated water, effectively ensuring the thoroughness of cleaning the coal slime water in the mine.

[0052] Embodiment 2:

[0053] A coal mine coal slime desilting and coal mining integrated equipment, the coal mine coal slime desilting and coal mining integrated equipment is installed in a coal mining tunnel 1 for use and follows the coal mining machine to achieve forward advancement, including a positioning cylinder group 2, the rear end of the positioning cylinder group 2 is adjustably hinged on the coal mining machine body 3, the positioning cylinder group 2 is connected to a coal slime receiving mechanism 5, the coal slime receiving mechanism 5 is used for integrated coal mining of water-containing coal seams, a transfer machine system 6 is installed on the coal mining machine body 3, and the transfer machine system 6 is used to transport the collected coal to the downstream.

[0054] This integrated equipment is mainly used to realize the integrated shoveling operation of water and coal for the coal slime and coal-water mixture in the water-containing coal seam, and to effectively separate the water and coal. The water is filtered out by the coal slime receiving mechanism 5 and directly enters the coal-water conveying system, and then the solid-liquid separation is achieved and then directly transported in phases to ensure the effective recycling of coal powder; at the same time, the coal blocks and large-diameter coal particles filtered out by the coal slime receiving mechanism 5 are directly accumulated on the top of the coal slime receiving mechanism 5 and are pushed to the transfer machine system 6 by the coal pusher.

[0055] In any of the above schemes, it is preferred that it further includes a coal-water conveying system coordinated with the coal slime receiving mechanism, and the coal-water conveying system is used to transfer and convey the coal slime and water delivered by the coal slime receiving mechanism.

[0056] In any of the above schemes, it is preferred that the top of the coal slime receiving mechanism is open.

[0057] In any of the above schemes, it is preferred that a coal pusher is installed on the top of the front end of the coal slime receiving mechanism, and the coal pusher is used to push and transport the mined coal stones and coal blocks that fall on the coal slime receiving mechanism to one side of the transfer machine system.

[0058] The main function of the coal pusher is to push the coal stones and coal blocks to one side of the transfer machine, thereby ensuring the smooth operation of the coal stones and coal blocks.

[0059] In any of the above schemes, it is preferred that the coal slime receiving mechanism 5 includes a steel receiving hopper 501, a discharge pipe 502 with an electromagnetic control valve is fixedly welded to the bottom of the steel receiving hopper 501, and the discharge pipe 502 is connected to the coal-water conveying system; a coal slime isolation net 503 is detachably fixedly installed in the steel receiving hopper 501, and the coal slime isolation net 503 is used for allowing small-diameter coal slime and water to pass through and for blocking coal mines and medium and large-diameter coal materials.

[0060] The inner cavity of the steel receiving hopper 501 is mainly used to contain water, and the coal slime isolation net 503 arranged on the top of the steel receiving hopper 501 can directly separate the water from the coal blocks of the water-coal mixture poured in from the top. The water directly enters the inner cavity, and the coal is blocked on the top of the coal slime isolation net 503 and accumulated, thereby realizing integrated shoveling, screening, diversion and transfer. The accumulated coal can be pushed and transferred to the downstream transfer machine for transportation and transfer under the action of the coal pusher.

[0061] In any of the above schemes, it is preferred that the coal pusher includes a multi-stage telescopic coal pushing cylinder 7 fixedly installed on the top of the front end of the steel receiving hopper 501, and a rubber coal pushing plate 8 is fixedly installed on the end of the piston rod of the multi-stage telescopic coal pushing cylinder 7. The rubber coal pushing plate 8 is used to push the coal material accumulated on the top of the coal slime isolation net 503 to the downstream transfer machine system 6 and deliver it thereto.

[0062] When the coal pusher is working, it mainly relies on the extension and contraction of the multi-stage telescopic coal pushing cylinder 7 to drive the rubber coal pushing plate 8 at its end to push the coal blocks accumulated on the top of the coal slime isolation net 503 backward, thereby pushing the coal blocks to the transfer machine system 6 to ensure the normal transfer of the coal blocks.

[0063] In any of the above schemes, it is preferred that the coal-water conveying system includes a coal slime discharge pipe 9 screwed to the discharge pipe 502, and a plurality of booster peristaltic pumps 10 are installed on the coal slime discharge pipe 9 at intervals along its length direction, and each of the booster peristaltic pumps 10 is used to improve the efficiency and smoothness of coal slime conveying by the coal slime discharge pipe 9, and a vortex separator 11 is connected to the end of the coal slime discharge pipe 9, and the vortex separator 11 is used to separate the coal particles and water in the coal slime, and the coal particles output by the vortex separator 11 are sent to the coal powder conveying line, and the discharged water is sent to the drainage system.

[0064] The coal-water conveying system is mainly installed at the end of the discharge pipe 502, and is used to receive and lead out the water-liquid mixture containing coal powder filtered inside the inner cavity. The setting of each booster peristaltic pump 10 can ensure the dynamics and smoothness of the conveying during the pipeline conveying with a larger stroke; the conveyed mixed liquid is separated by the vortex separator 11 to realize the two-way flow of solid and liquid, and finally achieve the purpose of effectively recycling the coal powder and improving the effective utilization rate of resources.

[0065] In any of the above schemes, preferably, a coal slime suction pipe 12 with a valve is provided at the bottom of the steel receiving hopper 501 , a suction pump 13 is arranged on the coal slime suction pipe 12 , and an outlet end of the suction pump 13 is connected to the coal slime discharge pipe 9 .

[0066] The suction pump 13 can suck and discharge the remaining small amount of accumulated water, effectively ensuring the thoroughness of cleaning the coal slime water in the mine.

[0067] In any of the above solutions, it is preferred that the front end of the steel receiving hopper 501 is provided with a shovel-shaped opening 414 , and the opening is located above the coal slime isolation net 503 .

[0068] The present invention also provides a method for integrated coal mine slime desilting and coal mining, wherein the method is implemented by using the above-mentioned integrated coal mine slime desilting and coal mining equipment, and comprises the following steps:

[0069] S1: The equipment moves to the working end of the water-containing coal mud tunnel to be mined;

[0070] S2: Start the coal mining machine and the transfer machine system 6, and keep them in working state, and keep moving forward to cut and mine the coal seam;

[0071] S3: When the coal cutting unit moves forward to cut coal, the positioning cylinder group 2 drives the coal slurry receiving mechanism 5 connected thereto to achieve a certain front end downward tilt and move forward;

[0072] S4: When working in a place where coal sludge and water accumulate, the coal sludge receiving mechanism 5 is used to realize the integrated separation and transportation of coal blocks and water liquid;

[0073] S5: repeat the steps in formula 1 until less coal slime remains and start the suction pump 13;

[0074] S6: Use the suction pump 13 to suck the remaining coal slime into the coal slime discharge pipe 9, and the coal slime water accumulation operation is completed;

[0075] S7: When encountering coal slime water accumulation during the advancement process, repeat the steps of S4-S6 to complete the operation;

[0076] S8: Continue to push the coal mining machine forward and cut the coal in the coal seam. The uncut coal material directly falls on the coal slime receiving mechanism 5 and is sent to the transfer machine system 6 through the coal pusher to be transported outward.

[0077] Among them, the specific operating steps in step S4 are as follows: when working in a place where coal slime is accumulated with water, the working height is adjusted to make the top of the coal slime receiving mechanism 5 immersed under the water-containing coal slime and delayed for a certain period of time. At this time, the coal mining and cutting part can be flexibly adjusted to stop, and the coal mining machine is controlled to lift upward to drive the coal slime receiving mechanism 5 to rise. The water flow and fine coal powder in the coal slime will pass through the steel receiving hopper 501 and be discharged into the coal and water conveying system through the discharge pipe 502. After the coal slime receiving mechanism 5 is leveled, the wet coal blocks on its top are sent into the transfer machine system 6 under the action of the coal pusher.

[0078] When this equipment works with the coal mining machine, it can effectively carry out integrated collection of water-containing coal blocks in coal seams with water accumulation, and can effectively realize the integrated treatment of coal blocks and water-coal liquid in the water-accumulated area and realize diversion and export, effectively avoiding the operation of separate water pumping, and better ensuring the coordination and unity of efficient drainage and coal mining under such complex coal seam conditions; when using this equipment to treat water-containing coal slime and coal blocks, the coal powder water liquid can be directly pumped to the downstream coal-water conveying system, thereby improving the efficiency and effect of the conveying, and at the same time, the water liquid can be separated from the coal powder particles after conveying, so as to better avoid The waste of coal powder particles is avoided, and the resource recovery rate is effectively improved; coal mining is directly realized during the pumping process, which effectively avoids the influence of turnover vibration caused by the separation of the two processes on the shedding of coal blocks, and effectively improves the safety of underground operations in this type of coal mine; the mined coal blocks are directly transported to the transfer machine system 6 for transfer, which effectively ensures the efficiency of coal mining; the booster peristaltic pumps 10 arranged at intervals on the long-distance coal slime discharge pipeline 9 of the coal-water conveying system can effectively improve the conveying power, effectively increase the conveying speed, prevent the pipeline from being blocked during large-flow conveying, and ensure the smoothness of conveying.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention. For those skilled in the art, any replacement, improvement or change made to the implementation mode of the present invention falls within the protection scope of the present invention.

[0080] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. An integrated equipment for coal mine slime desilting and coal mining, which is installed in a coal mining tunnel and follows a coal mining machine to move forward, and is characterized by: It comprises a positioning cylinder group, the rear end of which is adjustably hinged on the coal mining machine body, the front end of which is connected to a coal slime receiving mechanism, which is used for integrated coal mining of water-containing coal seams, and a transfer machine system is installed on the coal mining machine body, which is used to transport the collected coal to the downstream; It also includes a coal-water conveying system matched with the coal-slime receiving mechanism, and the coal-water conveying system is used to transfer and convey the coal-slime and water delivered by the coal-slime receiving mechanism; The top of the coal slime receiving mechanism is open; A coal pusher is installed at the top of the front end of the coal slime receiving mechanism, and the coal pusher is used to push and transport the mined coal stones and coal blocks that fall on the coal slime receiving mechanism to one side of the transfer machine system; The coal slime receiving mechanism comprises a steel receiving hopper, a discharge pipe with an electromagnetic control valve is fixedly welded at the bottom of the steel receiving hopper, and the discharge pipe is connected to the coal-water conveying system; a coal slime isolation net is detachably fixedly installed in the steel receiving hopper, and the coal slime isolation net is used to allow small-diameter coal slime and water flow to pass through and to block coal mines and medium- and large-diameter coal materials; The coal-water conveying system includes a coal slime discharge pipe screwed to the discharge pipe, and a plurality of booster peristaltic pumps are installed on the coal slime discharge pipe at intervals along its length direction, and each of the booster peristaltic pumps is used to improve the efficiency and smoothness of coal slime conveying by the coal slime discharge pipe. A vortex separator is connected to the end of the coal slime discharge pipe, and the vortex separator is used to separate coal particles and water in the coal slime. The coal particles output by the vortex separator are sent to the coal powder conveying line, and the discharged water is sent to the drainage system.

2. The integrated equipment for coal mine slime desilting and coal mining according to claim 1, characterized in that: The coal pusher includes a multi-stage telescopic coal pushing cylinder fixedly installed on the top of the front end of the steel receiving hopper, and a rubber coal pushing plate is fixedly installed on the end of the piston rod of the multi-stage telescopic coal pushing cylinder. The rubber coal pushing plate is used to push the coal accumulated on the top of the coal slime isolation net to the downstream transfer machine system and deliver it thereto.

3. A method for integrated coal mine slime desilting and coal mining, wherein the method is implemented by using the integrated coal mine slime desilting and coal mining equipment as claimed in claim 2, characterized in that: The steps include: S1: The equipment moves to the working end of the water-containing coal mud tunnel to be mined; S2: Start the coal mining machine and transfer machine system, and keep them in working state, and keep moving forward to cut the coal seam; S3: When the coal cutting unit moves forward to cut coal, the positioning cylinder group will drive the coal slurry receiving mechanism connected to it to achieve a certain front end downward inclination and move forward; S4: When working in a place with coal sludge and water accumulation, the coal sludge receiving mechanism is used to realize the integrated separation and transportation of coal blocks and water liquid; S5: repeat the steps in S4 until less coal slime remains and start the suction pump; S6: Use the suction pump to suck the remaining coal slime into the coal slime discharge pipe, and the coal slime water accumulation operation is completed; S7: When encountering coal slime water accumulation during the advancement process, repeat the steps of S4-S6 to complete the operation; S8: Continue to push the coal mining machine forward and cut and mine the coal in the coal seam. The mined coal falls directly on the coal slime receiving mechanism and is sent into the transfer machine system through the coal pusher for outward transportation.

4. The integrated method for coal mine slime desilting and coal mining according to claim 3, characterized in that: The specific operation steps in step S4 are as follows: when working in a place where coal slime is accumulated with water, the working height is adjusted to make the top of the coal slime receiving mechanism submerge under the water-containing coal slime and delay for a certain period of time. At this time, the coal mining and cutting part can be flexibly adjusted to stop, and the coal mining machine is controlled to lift the coal slime receiving mechanism upward. The water flow and fine coal powder in the coal slime will pass through the steel receiving hopper and be discharged into the coal-water conveying system through the discharge pipe. After the coal slime receiving mechanism is leveled, the wet coal blocks on its top are sent into the transfer machine system under the action of the coal pusher.

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