CN216934796U - Coal water separation device for underground downhill tunneling working face - Google Patents
Coal water separation device for underground downhill tunneling working face Download PDFInfo
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- CN216934796U CN216934796U CN202220511152.8U CN202220511152U CN216934796U CN 216934796 U CN216934796 U CN 216934796U CN 202220511152 U CN202220511152 U CN 202220511152U CN 216934796 U CN216934796 U CN 216934796U
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Abstract
The application discloses a coal water separation device for an underground mountain-descending tunneling working face, which comprises a driving mechanism, a transmission mechanism, a mud scraping plate, a compression plate and a water-absorbing sponge, wherein the driving mechanism, the transmission mechanism, the mud scraping plate, the compression plate and the water-absorbing sponge are arranged in a filtering and water-collecting shell; the device also comprises a water collecting pipe, a water collecting tank, a drainage pump and a dredging opening which are arranged at the lower part of the filtering and water collecting shell; the surface of the filtering and water collecting shell is provided with holes; the driving mechanism is fixedly connected with one end of the transmission mechanism; the other end of the transmission mechanism is fixedly connected with a compression plate and is used for driving the compression plate to do up-and-down reciprocating motion; the mud scraping plate is fixedly connected above the compression plate and used for cleaning coal gangue particles entering the filtering and water collecting shell; a water absorption sponge is arranged between the lower end of the compression plate and the bottom of the filtering water collection shell; the lower end of the filtering and water collecting shell is provided with a water collecting pipe, and the other end of the water collecting pipe is provided with a water collecting tank; the lower end of the water collecting tank is provided with a dredging opening; the other side of the water collecting tank is connected with a draining pump; the outlet of the drainage pump is connected with a drainage pipe. This application is rational in infrastructure, can realize coal, separation of water fast.
Description
Technical Field
The application relates to the technical field of coal water separation equipment for coal mines, in particular to a coal water separation device for an underground downhill tunneling working face.
Background
In the underground coal mine production, the condition that the water drainage is not timely on the driving face, the slurry of the driving face is pasty after being mixed, the coal is difficult to discharge and the like is often existed on the driving face, and particularly, when the water spraying amount of the top and bottom plates of the driving roadway is large, the driving roadway passes through a geological structure zone and the single-feeding level is low, the driving face is difficult to produce, and certain potential safety hazards are caused. In addition, when the pasty coal slime water mixture is conveyed to a tunneling belt conveyor for discharging, the problems that the belt conveyor is seriously deviated, more coal is scattered along the way, a lower belt returns coal to block a tail belt conveyor roller and the like are easily caused.
Most of coal mines solve the problems at present by scattering a large amount of water absorbing materials such as cement on a driving face and discharging the coal slime paste after solidification, but the operation has the defects of high cement consumption, high labor intensity of manual labor, high cost and the like. In addition, the slurry of coal slurry on the working face of the underground excavation roadway pollutes the underground operation environment and affects the mine civilization image, and no special equipment for separating the coal slurry and water mixture on the working face of the underground excavation roadway exists in the market so far, so that a device suitable for separating the coal slurry and water on the working face of the underground excavation roadway is urgently needed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The application provides a coal water separator for going downhill in pit and tunnelling working face to adopt among the solution prior art to scatter water-absorbing materials such as a large amount of cement at the tunnelling working face, arrange outward behind the solidification of coal slime water paste, it is big to have water-absorbing material consumption, and artifical physical labor intensity is big, and is with high costs and polluted the problem of borehole operation environment.
The technical scheme adopted by the application is as follows:
a coal water separation device for an underground downhill tunneling working surface comprises a driving mechanism 1, a transmission mechanism, a mud scraper 6, a compression plate 7 and a water absorption sponge 14 which are arranged in a filtering and water collecting shell 13;
the device also comprises a water collecting pipe 9, a water collecting tank 10, a drainage pump 11 and a desilting opening 16 which are arranged at the lower part of the filtering and water collecting shell 13;
the surface of the filtering and water collecting shell 13 is provided with a plurality of holes;
an output shaft of the driving mechanism 1 is fixedly connected with one end of the transmission mechanism;
the other end of the transmission mechanism is fixedly connected with the compression plate 7 and is used for driving the compression plate 7 to reciprocate up and down;
the mud scraping plate 6 is fixedly connected above the compression plate 7 and used for cleaning coal gangue particles entering the filtering and water collecting shell 13;
the water-absorbing sponge 14 is arranged between the lower end of the compression plate 7 and the bottom of the filtering water-collecting shell 13;
the lower end of the filtering and water collecting shell 13 is provided with the water collecting pipe 9, and the other end of the water collecting pipe 9 is provided with the water collecting tank 10;
the lower end of the water collecting tank 10 is provided with a dredging opening 16;
the other side of the water collecting tank 10 is connected with the drainage pump 11;
the outlet of the drainage pump 11 is connected with a drainage pipe.
Preferably, the driving mechanism 1 comprises a compression motor and a reducer;
the compression motor is fixedly connected with the speed reducer.
Preferably, the transmission mechanism comprises a transmission rod 2, a transmission pin 3, a reciprocating rod 4 and a reciprocating pin 5;
the output shaft of the speed reducer is fixedly connected with the transmission rod 2;
the transmission rod 2 is rotatably connected with the reciprocating rod 4 through a transmission pin 3;
the reciprocating rod 4 is rotatably connected with the compression plate 7 through a reciprocating pin 5.
Preferably, the upper end of the reciprocating pin 5 is rotatably connected with the reciprocating rod 4 through a pin shaft;
the lower part of the reciprocating pin 5 is of a claw-shaped structure, and the lower end of the reciprocating pin 5 is fixedly connected with the compression plate 7.
Preferably, the upper part of the compression plate 7 is fixedly connected with the mud scraper 6 through a fixing bolt 8;
the mud scraper 6 is made of plastic material.
Preferably, the scraper 6 is made of plastic rubber.
Preferably, the diameter of the mud scraper 6 is larger than the filtering and water collecting shell 13;
the water-absorbing sponge 14 is arranged between the lower ends of the mud scraping plate 6 and the compression plate 7 and the bottom of the filtering and water-collecting shell 13.
Preferably, the lower end of the compression plate 7 is fixedly connected with a return spring 15;
the return spring 15 is installed inside the water absorption sponge 14.
Preferably, a check valve 12 is connected between the outlet of the drain pump 11 and the drain pipe.
A coal water separation method for an underground downhill tunneling working face is applied to the coal water separation device for the underground downhill tunneling working face and comprises the following steps:
the coal water separation device is integrally placed in a coal slurry water mixture of a driving face in the downhill, so that the filtering and water collecting shell 13 is immersed in the coal slurry water mixture;
connecting a drain pipe and a power supply;
absorbing water permeated from the coal slime water mixture through the water absorption sponge 14;
the driving mechanism 1 drives the transmission mechanism to move, and then drives the mud scraping plate 6 and the compression plate 7 to do up-and-down reciprocating motion;
the water absorbed in the water absorption sponge 14 is extruded and separated through the up-and-down reciprocating motion of the compression plate 7;
meanwhile, coal gangue particles entering the filtering and water collecting shell 13 are cleaned through the up-and-down reciprocating motion of the mud scraper 6, so that the coal-water separation is realized;
the separated water enters a water collecting tank 10 through a water collecting pipe 9;
the separated water is collected and precipitated by the water collection tank 10;
discharging solid particles precipitated in the water collecting tank 10 through a dredging port 16;
the separated moisture is discharged through a drain pipe by the drain pump 11.
The technical scheme of the application has the following beneficial effects:
1. the coal water separation device for the underground downhill tunneling working face is scientific and reasonable in structure, safe and convenient to use, and can quickly absorb water in a coal slime water mixture by means of the water absorption sponge, so that coal and water are separated; the filtering and water collecting shell is arranged, on one hand, the filtering and water collecting shell is used for preventing the large coal gangue from extruding the water absorbing sponge and ensuring that the water absorbing sponge has sufficient water absorbing space, and on the other hand, when the water absorbing sponge reciprocates relative to the filtering and water collecting shell, the filtering and water collecting shell can remove coal gangue particles adsorbed on the surface of the water absorbing sponge, so that the self-cleaning function of the water absorbing sponge is realized; the water collecting tank and the dredging port are arranged, so that a certain amount of water can be stored, centralized drainage is realized, idling and frequent starting of the drainage pump are prevented, suspended particles contained in accumulated water in the water collecting tank can be precipitated at the lower part of the water collecting tank, secondary filtration is realized, and filtered precipitates can be cleaned regularly by opening the dredging port of the water collecting tank; a compression motor and a speed reducer are matched with a return spring, so that the water passing-through sponge can circulate between an expansion water absorption state and a compression dehydration state; the device is provided with a mud scraping plate and a compression plate, wherein the compression plate can extrude water absorbing sponge and discharge absorbed water into a water collecting pipe, and the mud scraping plate has certain plasticity, the diameter of the mud scraping plate is slightly larger than that of a filtering water collector shell, so that coal and gangue particles entering the filtering water collector shell can be cleaned when the mud scraping plate reciprocates; the check valve is arranged to prevent accumulated water in the drainage pipe from flowing backwards.
2. A coal water separator for going downhill in pit tunnelling working face adopt the electric energy as the power supply, clean environmental protection, work efficiency is high, adopts the sponge that absorbs water as the material that absorbs water, can recycle, with low costs low-power consumption is little.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a coal water separation device for a downhole driving face;
FIG. 2 is a schematic view of a connection structure of the compression plate and the mud scraper in the coal-water separation device for a downhole driving face;
FIG. 3 is a schematic structural diagram of the installation position of a return spring in a coal-water separation device for an underground downhill tunneling working surface according to the present application;
FIG. 4 is a schematic diagram illustrating a structure of the water-absorbing sponge in the coal-water separation device for the underground downhill tunneling working surface according to the present application;
FIG. 5 is a schematic structural view of the filtering and water collecting casing of the coal water separation device for the underground downhill tunneling working face according to the present application;
illustration of the drawings:
the device comprises a driving mechanism 1, a driving rod 2, a driving pin 3, a reciprocating rod 4, a reciprocating pin 5, a mud scraper 6, a compression plate 7, a fixing bolt 8, a water collecting pipe 9, a water collecting tank 10, a water discharging pump 11, a check valve 12, a filtering water collecting shell 13, a water absorbing sponge 14, a return spring 15 and a desilting opening 16.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as examples of systems and methods consistent with certain aspects of the application, as detailed in the claims.
Referring to fig. 1, it is a schematic structural diagram of a coal-water separation device for a driving face in a downhole mountain descending manner according to the present invention.
The coal water separation device for the underground downhill tunneling working surface comprises a driving mechanism 1, a transmission mechanism, a mud scraping plate 6, a compression plate 7 and a water absorption sponge 14, wherein the driving mechanism 1, the transmission mechanism, the mud scraping plate 6, the compression plate and the water absorption sponge are arranged in a filtering and water collecting shell 13;
and a water collecting pipe 9, a water collecting tank 10, a drainage pump 11 and a dredging opening 16 which are arranged at the lower part of the filtering and water collecting shell 13.
The surface of the filtering and water collecting shell 13 is provided with a plurality of dense holes;
an output shaft of the driving mechanism 1 is fixedly connected with one end of the transmission mechanism;
the other end of the transmission mechanism is fixedly connected with the compression plate 7 and is used for driving the compression plate 7 to reciprocate up and down;
the mud scraping plate 6 is fixedly connected above the compression plate 7 and used for cleaning coal gangue particles entering the filtering and water collecting shell 13;
the water absorption sponge 14 is arranged between the lower end of the compression plate 7 and the bottom of the filtering water collection shell 13, as shown in fig. 4, the water absorption sponge 14 can rapidly absorb water in a coal slime water mixture to realize coal and water separation, and then the compression plate 7 reciprocates up and down to extrude the water in the water absorption sponge 14;
the lower end of the filtering and water collecting shell 13 is welded with the water collecting pipe 9, the other end of the water collecting pipe 9 is welded with the water collecting tank 10, and water absorbed and separated by the water absorbing sponge 14 enters the water collecting tank 10 through the water collecting pipe 9 to be stored and drained in a centralized manner;
a dredging opening 16 is welded at the lower end of the water collecting tank 10, suspended particles contained in accumulated water in the water collecting tank 10 can be precipitated at the lower part of the water collecting tank 10, secondary filtration is realized, and filtered precipitates can be periodically cleaned by opening the dredging opening 16;
the other side of the water collecting tank 10 is connected with the drainage pump 11;
the outlet of the drainage pump 11 is connected with a drainage pipe.
In order to realize the moisture in the quick absorption coal slime water mixture, this application installs the sponge 14 that absorbs water in filtering catchment shell 13, in order to realize screening and keeping the recovery deformation space of sponge 14 that absorbs water for the major diameter solid particle in the coal slime water mixture, is provided with intensive hole on filtering catchment shell 13. In order to store a certain amount of water, to realize concentrated drainage, to prevent idling and frequent start of the drainage pump, and to realize secondary sedimentation of collected sewage, a water collection tank 10 is provided. In order to periodically clean the sump 10 of the settled solid particles, a dredging opening 16 is provided at a lower portion of the sump 10. In order to realize the compression of the water absorption sponge 14 and the automatic cleaning of the inner wall of the filtering and water collecting device shell 13, a compression plate 7 and a mud scraping plate 6 are arranged on the water absorption sponge 14.
Preferably, in this embodiment, as shown in fig. 5, a plurality of dense holes are opened on the surface of the filtering and water collecting housing 13, on which the water absorbing sponge 14 is installed, and the height of the part of the filtering and water collecting housing 13, on which the holes are formed, is not less than the maximum height of the water absorbing sponge 14.
Preferably, in this embodiment, the driving mechanism 1 includes a compression motor and a speed reducer, and adopts electric energy as a power source, so that the device is clean and environment-friendly, and has high working efficiency and low power consumption;
the compression motor is fixedly connected with the speed reducer.
In one embodiment, the gear port may be a rack and pinion gear. Preferably, in this embodiment, the transmission mechanism is a crank link mechanism, and the transmission mechanism specifically includes a transmission rod 2, a transmission pin 3, a reciprocating rod 4 and a reciprocating pin 5;
the output shaft of the speed reducer is welded with the transmission rod 2;
the transmission rod 2 is rotatably connected with the reciprocating rod 4 through a transmission pin 3;
the reciprocating rod 4 is rotatably connected with the compression plate 7 through a reciprocating pin 5.
Preferably, as shown in fig. 2, in the present embodiment, the upper end of the reciprocating pin 5 is rotatably connected to the reciprocating rod 4 through a pin;
the lower part of the reciprocating pin 5 is of a claw-shaped structure, and the lower end of the reciprocating pin 5 is fixedly connected with the compression plate 7.
In other embodiments, the driving mechanism 1 may also be an air compressor, an air pump, or the like, and the corresponding transmission mechanism may be a device that can perform an up-and-down reciprocating motion, such as an air cylinder.
Preferably, as shown in fig. 2, in the present embodiment, the mud scraper 6 is fixedly connected above the compression plate 7 by a fixing bolt 8;
the mud scraper 6 is made of plastic material.
Preferably, in this embodiment, the scraper 6 is made of plastic rubber.
Preferably, in the embodiment, the diameter of the scraper 6 is slightly larger than that of the filtering and water collecting shell 13, so that when the scraper 6 reciprocates up and down, gangue particles entering the filtering and water collecting shell 13 can be cleaned;
and the water-absorbing sponge 14 is arranged between the lower ends of the mud scraping plate 6 and the compression plate 7 and the bottom of the filtering and water collecting shell 13.
Preferably, as shown in fig. 3, in the present embodiment, in order to further increase the ability of the water absorption sponge 14 to rapidly recover the deformation, a return spring 15 is welded to the lower end of the compression plate 7, and the return spring 15 is installed inside the water absorption sponge 14.
Optionally, the reciprocating stroke of the compression plate (7) is not more than the maximum compression amount of the return spring (15). Preferably, in the embodiment, the reciprocating stroke of the compression plate (7) is equal to the maximum compression amount of the return spring (15).
Preferably, in this embodiment, a check valve 12 is connected between the outlet of the drainage pump 11 and the drainage pipe, so as to prevent accumulated water in the drainage pipe from flowing back to the gangue particles in the coal slime water mixture shell.
A coal water separation method for an underground downhill tunneling working face is applied to the coal water separation device for the underground downhill tunneling working face and comprises the following steps:
the coal water separation device is integrally placed in a coal slurry water mixture of a driving face in the downhill, so that the filtering and water collecting shell 13 is immersed in the coal slurry water mixture;
connecting a drain pipe and a power supply;
absorbing water permeated from the coal slime water mixture through the water absorption sponge 14;
the driving mechanism 1 drives the transmission mechanism to move, and then drives the mud scraping plate 6 and the compression plate 7 to do up-and-down reciprocating motion;
the water absorbed in the water absorption sponge 14 is extruded and separated through the up-and-down reciprocating motion of the compression plate 7;
meanwhile, coal gangue particles entering the filtering and water collecting shell 13 are cleaned through the up-and-down reciprocating motion of the mud scraper 6, so that the coal-water separation is realized;
the separated water enters a water collecting tank 10 through a water collecting pipe 9;
the separated water is collected and precipitated by the water collection tank 10;
discharging solid particles precipitated in the water collecting tank 10 through a dredging port 16;
the separated moisture is discharged through a drain pipe by the drain pump 11.
The application relates to a working principle and a using method of a coal-water separation device for an underground downhill tunneling working face:
firstly, the device is integrally placed in a coal slurry water mixture of a driving face in a downhill, and a power supply and a drain pipe are connected. The filtering and water collecting shell 13 is immersed in coal slime water, water permeating from a coal slime water mixture is absorbed by the water absorbing sponge 14, and the rotating torque of the motor is converted into power of reciprocating motion of the compression plate 7 through rotation of the compression motor and the speed reducer and transmission of the transmission rod 2, the transmission pin 3, the reciprocating rod 4 and the reciprocating pin 5. The compression plate 7 compresses the water absorption sponge 14, absorbed water enters the water collection tank 10 through the water collection pipe 9, is collected by the water collection tank 10, and is discharged into a main water discharge pipeline through the water discharge pump 11 after secondary precipitation. The check valve 12 is used for preventing liquid in the main pipeline from flowing back to enter the coal-water mixture. In order to facilitate periodic cleaning of the sump 10 from solid deposits, a dredging opening 16 is provided in the lower portion of the sump 10 as a dredging passage. In order to increase the quick recovery deformation capacity of the water absorption sponge 14, a return spring 15 is arranged inside the water absorption sponge 14. The mud scraping plate 6 is fixed on the surface of the compression plate 7 through the fixing bolt 8, and the inner surface of the filtering water collector shell 13 is continuously cleaned along with the reciprocating motion process of the compression plate 7, so that self-cleaning is realized.
The application a coal moisture separator for going downhill in pit headwork face structure scientific and reasonable, high safety and convenience in utilization, adopt the electric energy as the power supply, clean environmental protection, high work efficiency, adopt the sponge that absorbs water as the water-absorbing material, can recycle, with low costs low power dissipation is little, effectively solved and adopted to scatter water-absorbing materials such as a large amount of cement at the headwork face among the prior art, arrange outer row after the solidification of slime water paste, it is big to have the water-absorbing material consumption, artifical physical power intensity of labour is big, with high costs and polluted the problem of operation environment in the pit. The water-absorbing sponge is arranged in the coal slime water separation device, so that water in a coal slime water mixture can be quickly absorbed, and coal and water separation is realized; the filtering and water collecting shell is arranged, on one hand, the filtering and water collecting shell is used for preventing the large pieces of coal gangue from extruding the water absorbing sponge and ensuring that the water absorbing sponge has sufficient water absorbing space, and on the other hand, when the water absorbing sponge reciprocates relative to the filtering and water collecting shell, the filtering and water collecting shell can remove coal gangue particles adsorbed on the surface of the water absorbing sponge, so that the self-cleaning function of the water absorbing sponge is realized; the water collecting tank and the dredging port are arranged, so that a certain amount of water can be stored, centralized drainage is realized, idling and frequent starting of the drainage pump are prevented, suspended particles contained in accumulated water in the water collecting tank can be precipitated at the lower part of the water collecting tank, secondary filtration is realized, and filtered precipitates can be cleaned regularly by opening the dredging port of the water collecting tank; a compression motor and a speed reducer are matched with a return spring, so that the water passing-through sponge can circulate between an expansion water absorption state and a compression dehydration state; the device is provided with a mud scraping plate and a compression plate, wherein the compression plate can extrude water absorbing sponge and discharge absorbed water into a water collecting pipe, and the mud scraping plate has certain plasticity, the diameter of the mud scraping plate is slightly larger than that of a filtering water collector shell, so that coal and gangue particles entering the filtering water collector shell can be cleaned when the mud scraping plate reciprocates; the check valve is arranged to prevent accumulated water in the drainage pipe from flowing backwards.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (9)
1. A coal water separation device for an underground downhill tunneling working surface is characterized by comprising a driving mechanism (1), a transmission mechanism, a mud scraper (6), a compression plate (7) and a water absorption sponge (14) which are arranged in a filtering and water collecting shell (13);
the device also comprises a water collecting pipe (9) arranged at the lower part of the filtering and water collecting shell (13), a water collecting tank (10), a drainage pump (11) and a desilting opening (16);
the surface of the filtering and water collecting shell (13) is provided with a plurality of holes;
an output shaft of the driving mechanism (1) is fixedly connected with one end of the transmission mechanism;
the other end of the transmission mechanism is fixedly connected with the compression plate (7) and is used for driving the compression plate (7) to do up-and-down reciprocating motion;
the mud scraping plate (6) is fixedly connected above the compression plate (7) and is used for cleaning coal gangue particles entering the filtering and water collecting shell (13);
the water absorption sponge (14) is arranged between the lower end of the compression plate (7) and the bottom of the filtering water collection shell (13);
the lower end of the filtering and water collecting shell (13) is provided with the water collecting pipe (9), and the other end of the water collecting pipe (9) is provided with the water collecting tank (10);
the lower end of the water collecting tank (10) is provided with a desilting opening (16);
the other side of the water collecting tank (10) is connected with the drainage pump (11);
and the outlet of the drainage pump (11) is connected with a drainage pipe.
2. A coal water separation device for a downhole mountain driving face according to claim 1, wherein the driving mechanism (1) comprises a compression motor and a reducer;
the compression motor is fixedly connected with the speed reducer.
3. A coal water separation device for a downhole mountain heading face according to claim 2, wherein the transmission mechanism comprises a transmission rod (2), a transmission pin (3), a reciprocating rod (4) and a reciprocating pin (5);
an output shaft of the speed reducer is fixedly connected with the transmission rod (2);
the transmission rod (2) is rotatably connected with the reciprocating rod (4) through a transmission pin (3);
the reciprocating rod (4) is rotatably connected with the compression plate (7) through a reciprocating pin (5).
4. The coal water separation device for the underground downhill tunneling working surface according to claim 3, wherein the upper end of the reciprocating pin (5) is rotatably connected with the reciprocating rod (4) through a pin shaft;
the lower part of the reciprocating pin (5) is of a claw-shaped structure, and the lower end of the reciprocating pin (5) is fixedly connected with the compression plate (7).
5. The coal water separation device for the underground downhill tunneling working surface according to claim 1, wherein the mud scraper (6) is fixedly connected above the compression plate (7) through a fixing bolt (8);
the mud scraper (6) is made of plastic materials.
6. A coal water separation device for a downhole mountain driving face according to claim 5, wherein the scraper (6) is of a plastic rubber material.
7. A coal water separation device for a downhole mountain driving face according to claim 5, characterized in that the diameter of the mud scraper (6) is larger than the filtering water-collecting casing (13);
and the water absorption sponge (14) is arranged between the lower ends of the mud scraping plate (6) and the compression plate (7) and the bottom of the filtering water collection shell (13).
8. The coal water separation device for the underground downhill tunneling working surface according to claim 1, wherein a return spring (15) is fixedly connected to the lower end of the compression plate (7);
the return spring (15) is arranged inside the water absorption sponge (14).
9. A coal water separation device for a downhole driving face according to claim 1, characterized in that a check valve (12) is connected between the outlet of the drain pump (11) and the drain pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220511152.8U CN216934796U (en) | 2022-03-10 | 2022-03-10 | Coal water separation device for underground downhill tunneling working face |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114470873A (en) * | 2022-03-10 | 2022-05-13 | 兖矿能源集团股份有限公司 | Coal-water separation device and method for underground downhill tunneling working face |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114470873A (en) * | 2022-03-10 | 2022-05-13 | 兖矿能源集团股份有限公司 | Coal-water separation device and method for underground downhill tunneling working face |
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