CN112483164A - Coal mine coal face upper corner gas extraction device - Google Patents
Coal mine coal face upper corner gas extraction device Download PDFInfo
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- CN112483164A CN112483164A CN202011498955.6A CN202011498955A CN112483164A CN 112483164 A CN112483164 A CN 112483164A CN 202011498955 A CN202011498955 A CN 202011498955A CN 112483164 A CN112483164 A CN 112483164A
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- Prior art keywords
- air
- upper corner
- exhaust fan
- gas extraction
- extraction device
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
Abstract
The invention discloses a gas extraction device for an upper corner of a coal mining working face of a coal mine, and relates to the technical field of gas extraction devices. The air-suction type air-suction device is reasonable in structure and simple in operation, the first exhaust fan is arranged in the upper corner area, the third exhaust fan and one end of the air inlet pipe are arranged outside the well, the first exhaust fan extracts air in the upper corner area through the plurality of dispersed air inlets and extracts the air for the second time through the third exhaust fan, so that the air is extracted smoothly, and the second exhaust fan extracts fresh air outside the well into the upper corner area and rapidly disperses the fresh air through the plurality of air outlets.
Description
Technical Field
The invention relates to the technical field of gas extraction devices, in particular to a gas extraction device for an upper corner of a coal mining working face of a coal mine.
Background
Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines, when the coal layer is far away from the ground surface, the coal layer is generally selected to dig a tunnel to the underground, which is a mineworker coal mine, when the coal seam is very close to the earth surface, the coal is excavated by directly stripping the earth surface, the coal is an open-pit coal mine, most coal mines in China belong to underground coal mines, the coal mining working face refers to a first production site of the coal, the coal mining working face has the characteristics of narrow working space, more mechanical equipment, poor visual environment and high temperature, the coal mining working face is a frequently-occurring place of mine accidents, the upper corner refers to the return air side of the coal mining working face and is close to a triangular zone at the upper side of a return air tunnel and the edge of a goaf, the ventilation of the area is poor, the temperature and the humidity are high, the gas released by intersection of the goaf and the mining face is easy to accumulate, the gas concentration is high, and the area is the key point for preventing and controlling the gas on the working face.
In the prior art, gas at an upper corner of a coal mining working face is generally extracted by a single exhaust fan and is conveyed out of a well through a pipeline, because a mine is generally deep, a conveying pipeline is long, the suction force of the exhaust fan is continuously attenuated, the gas extraction efficiency is reduced, the exhaust fan generally adopts single-point extraction, the gas extraction time in a certain space is long, and meanwhile, after the gas is extracted, fresh air is not supplemented in time, the field operation is not facilitated, so that the upper corner gas extraction device for the coal mining working face of a coal mine is disclosed to meet the requirements of people.
Disclosure of Invention
The invention aims to provide a gas extraction device for an upper corner of a coal mining working face of a coal mine, and aims to solve the problems in the background art.
In order to achieve the above purpose, the present application provides the following technical solutions: a gas extraction device for an upper corner of a coal mining working face of a coal mine comprises a base frame, wherein a base plate is fixedly mounted on the top side of the base frame, a first exhaust fan and a second exhaust fan are fixedly mounted on the top side of the base plate, a filter box is fixedly connected to one side of the first exhaust fan, a plurality of air inlets are fixedly communicated with the outer side wall of the filter box, a plurality of expansion brackets are fixedly mounted at one ends of the air inlets through fixing rings, one ends of the expansion brackets are fixedly mounted on the top surface of the base plate, an air outlet pipe is arranged on the other side of the first exhaust fan, one end of the air outlet pipe is communicated with one side of the first exhaust fan, the other end of the air outlet pipe is communicated with a third exhaust fan, a plurality of air outlets are communicated with one side of the second exhaust fan, and the air outlets and the air inlets are respectively located on, the opposite side of second air exhauster is equipped with the air-supply line, the one end intercommunication of air-supply line is in one side of second air exhauster, the other end is followed the play tuber pipe extends to one side of third air exhauster.
Based on the structure, the base frame is placed in the upper corner area, one end of the third exhaust fan and one end of the air inlet pipe are arranged outside the well, the first exhaust fan extracts air in the upper corner area, the second exhaust fan reversely extracts air to extract fresh air outside the well to the upper corner area, the air environment is improved, the plurality of telescopic frames enable the plurality of air inlets to be respectively arranged in the plurality of areas, the distribution positions of the air inlets are increased, the air in the upper corner area can be collected and extracted more quickly, the air extracted by the first exhaust fan is conveyed out of the well through the air outlet pipe, the air is extracted by the third exhaust fan arranged outside the well for the second time, the fresh air extracted by the second exhaust fan is dispersed to the upper corner area through the plurality of air outlets, the air environment is improved quickly, the extracted air is primarily purified through the filter box, and the air in the upper corner area is prevented from being mixed with pollutants such as dust, causing secondary pollution to other areas where the gas is discharged.
Preferably, it is a plurality of equal fixed mounting has the check valve on the air outlet, be equipped with the conical surface in the check valve, one side of conical surface with the air outlet is linked together, and the opposite side is equipped with the activity ball rather than the looks adaptation, fixedly connected with spring on the lateral wall of activity ball, the spring is located keeps away from one side position department of conical surface.
Furthermore, the check valve controls the on-off of the air outlet through the separation or the close of the movable round ball and the conical surface, when the air pressure overcomes the elasticity of the spring to enable the movable round ball to move towards the spring side, the movable round ball is separated from the conical surface, the air outlet is communicated, air can circulate, the air outlet is closed in the reverse direction, and air cannot circulate, so that the air at the upper corner can be prevented from diffusing into the air outlet when the second exhaust fan is closed, and the air in the air outlet is kept in a fresh state.
Preferably, a plurality of screen panels are fixedly sleeved at one end of the air inlet, the screen panels are communicated with one end of the air inlet, a plurality of air holes are uniformly formed in the outer side wall of each screen panel, and the screen panels are located at one side positions corresponding to the fixing rings.
Furthermore, under the condition that the upper corner space area is small, the air inlets touch a well wall and the like, so that the pipe orifices of the air inlets are propped to cause unsmooth air inlet, extraction is affected, the net cover can protect the pipe orifices of the air inlets, the pipe orifices of the air inlets can keep smooth through the air holes under the propped condition, and extraction is guaranteed.
Preferably, a plurality of support sleeves are fixedly mounted on the bottom side of the base frame, a plurality of support sleeves are screwed with support screws, and hexagonal blocks are fixedly sleeved on the support screws close to the bottom ends.
Furthermore, the supporting screws move on the supporting sleeves by respectively rotating the supporting screws, so that the distance from the bottom ends of the supporting screws to the base frame is adjusted to adapt to the ground with different heights, the top surface of the base frame is kept in a horizontal plane state, and the supporting screws are convenient to apply force to rotate through the hexagonal blocks.
Preferably, a plurality of the bottom of supporting screw rod all is equipped with the toper structure, and is a plurality of the equal fixed socket joint of one end of supporting screw rod installs the disc, and is a plurality of the disc all is located and corresponds hexagonal piece with correspond position department between the toper structure.
Further, can support the faster ground that inserts of screw rod through the toper structure, the disc can increase lifting surface, makes supporting screw rod more firm, can prevent simultaneously that dust from overflowing to hexagonal piece region, keeps it clean.
Preferably, a plurality of reinforcing cross bars are uniformly and fixedly mounted on the inner side walls, close to each other, of the base frame, and the plurality of reinforcing cross bars are located on the bottom side of the base plate and correspond to the plurality of support sleeves in position.
Furthermore, a plurality of reinforcing cross bars can increase the rigidity of the base frame, so that the base frame is more stable and is corresponding to the supporting sleeve, and the base frame is prevented from deforming due to the bearing of gravity.
Preferably, a multi-link support is fixedly mounted on the top side of the base plate, and an illuminating lamp is fixedly mounted at the top end of the multi-link support.
Furthermore, the angle and the length can be adjusted through the multi-connecting-rod support, the position of the illuminating lamp can be adjusted conveniently, the corresponding area can be illuminated conveniently, and related operations can be performed conveniently under the illumination of the illuminating lamp.
Preferably, one side of the third exhaust fan and one end of the air inlet pipe are fixedly provided with filter screens, and the inner cavity of the filter box is fixedly provided with a plurality of layers of filter cotton.
Furthermore, the filter screen can prevent the air inlet pipe and the air outlet pipe from being blocked due to the entering of foreign matters, so that the pipeline is not smooth, large granular substances such as dust can be filtered through the multi-layer filter cotton, the pipeline is prevented from being silted to cause the blockage, and extracted gas can be preliminarily purified, so that the gas outside the well is prevented from being polluted, and the dual protection effect is achieved.
Preferably, the top side fixed mounting of base plate has the mount, the top side of mount is equipped with oval clamp, the air-supply line with it is in to go out tuber pipe fixed mounting side by side in the oval clamp.
Furthermore, the air inlet pipe and the air outlet pipe are fixedly mounted on the base plate in parallel through the fixing frame, so that the stability of the pipeline is improved, and meanwhile, the base frame is favorably moved.
Preferably, the bottom side of the base frame is provided with support rods at positions close to the four corners, and the bottom ends of the four support rods are provided with movable wheels.
Furthermore, the movable wheels are convenient to move the base frame, and the height of the base frame from the ground can be increased through the supporting rods, so that the base frame can move smoothly on the ground with different unevenness.
In conclusion, the technical effects and advantages of the invention are as follows:
1. the invention has reasonable structure, the base frame is arranged in an upper corner area, one end of a third exhaust fan and one end of an air inlet pipe are arranged outside a well, the first exhaust fan extracts air in the upper corner area, the second exhaust fan reversely extracts air to extract fresh air outside the well to the upper corner area, the air environment is improved, a plurality of telescopic frames enable a plurality of air inlets to be respectively arranged in a plurality of areas, the distribution positions of the air inlets are increased, the air in the upper corner area can be collected and extracted more quickly, the air extracted by the first exhaust fan is conveyed out of the well through the air outlet pipe, the air is extracted for the second time through the third exhaust fan arranged outside the well, the fresh air extracted by the second exhaust fan is dispersed to the upper corner area through a plurality of air outlets, the air environment is improved quickly, the extracted air is primarily purified through the filter box, and the air in the upper corner area is prevented from being mixed with pollutants such as dust, causing secondary pollution to other areas where the gas is discharged.
2. In the invention, through the arrangement of the plurality of check valves, the check valves control the on-off of the air outlet through the separation or the approach of the movable round ball and the conical surface, when the air pressure overcomes the elasticity of the spring to enable the movable round ball to move towards the spring side, the movable round ball is separated from the conical surface, the air outlet is communicated, the air can circulate, the air outlet is closed in the reverse direction, and the air cannot circulate, so that the air at the upper corner is prevented from diffusing into the air outlet when the second exhaust fan is closed, and the air in the air outlet is kept in a fresh state.
3. According to the invention, through the arrangement of the mesh enclosure, under the condition that an upper corner space area is smaller, a plurality of air inlets can touch a well wall and the like, so that the pipe orifices of the air inlets are propped to cause unsmooth air inlet, extraction is influenced, the mesh enclosure can protect the pipe orifices of the air inlets, so that the pipe orifices can keep the smoothness of the air inlets through the air holes under the propped condition, extraction is ensured, a plurality of reinforcing cross rods can increase the rigidity of the base frame, the base frame is more stable and is corresponding to the support sleeve, the base frame is prevented from deforming due to the bearing of gravity, the angle and the length can be adjusted through the multi-connecting-rod support, the position of an illuminating lamp can be conveniently adjusted, the corresponding area can be conveniently illuminated.
4. According to the invention, the supporting screws move on the supporting sleeves by respectively rotating the plurality of supporting screws so as to adjust the distance between the bottom ends of the supporting screws and the base frame to adapt to the ground with different heights, the top surface of the base frame is kept in a horizontal plane state, the supporting screws are convenient to apply force to rotate through the hexagonal blocks, the supporting screws can be more quickly inserted into the ground through the conical structures, the stress area of the disc can be increased, the supporting screws are more stable, and meanwhile, dust can be prevented from overflowing to the hexagonal block area to keep the cleaning of the supporting screws.
5. According to the invention, the filter screen can prevent the air inlet pipe and the air outlet pipe from being blocked due to the entering of foreign matters, so that the pipeline is not smooth, large granular substances such as dust can be filtered through the multi-layer filter cotton, the pipeline is prevented from being blocked due to siltation, extracted gas can be preliminarily purified, the pollution of gas outside a well is prevented, the dual-protection effect is achieved, the stability of the pipeline is improved through the fixing frame, the base frame is convenient to move through the movable wheels, the height of the base frame from the ground can be increased through the support rod, and the base frame can be smoothly moved on the ground with different unevenness.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the present invention;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of the enlarged portion of the area A in FIG. 3 according to the present invention;
FIG. 5 is a partially enlarged perspective view of the support sleeve region of the present invention;
FIG. 6 is a partially enlarged schematic view of a third blower area according to the present invention;
FIG. 7 is a schematic view of a first air inlet duct with a partially enlarged structure according to the present invention;
fig. 8 is a partially enlarged structural view of the check valve region of the present invention.
In the figure: 1. a base frame; 2. a support sleeve; 3. a movable wheel; 4. a strut; 5. a first exhaust fan; 6. a fixed mount; 7. an air outlet; 8. a one-way valve; 9. a second exhaust fan; 10. an air inlet pipe; 11. an air outlet pipe; 12. an illuminating lamp; 13. a filter box; 14. a multi-link bracket; 15. an air inlet; 16. a telescopic frame; 17. a mesh enclosure; 18. a substrate; 19. a reinforcing cross bar; 20. filtering cotton; 21. a support screw; 22. a hexagonal block; 23. a disc; 24. a tapered structure; 25. a third exhaust fan; 26. filtering with a screen; 27. a fixing ring; 28. a conical surface; 29. a movable ball; 30. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b): referring to fig. 1-8, the gas extraction device at the upper corner of the coal mining working face of the coal mine comprises a base frame 1, and the base frame 1 can be a frame made of any hard material in the prior art, such as a frame welded by metal rods.
A base plate 18 is fixedly arranged on the top side of the base frame 1, a first exhaust fan 5 and a second exhaust fan 9 are fixedly arranged on the top side of the base plate 18, the base frame 1 is arranged in the upper corner area, the first exhaust fan 5 exhausts air in the upper corner area, and the second exhaust fan 9 reversely exhausts air in other areas to the upper corner area.
One side of the first exhaust fan 5 is fixedly connected with a filter box 13, and the extracted gas is primarily purified through the filter box 13, so that the gas in the upper corner area is prevented from being mixed with pollutants such as dust and causing secondary pollution to other areas discharging the gas.
The outer side wall of the filter box 13 is fixedly communicated with a plurality of air inlets 15, one ends of the air inlets 15 are fixedly provided with a plurality of expansion brackets 16 through fixing rings 27, one ends of the expansion brackets 16 are fixedly arranged on the top surface of the base plate 18, the expansion brackets 16 enable the air inlets 15 to be respectively located in a plurality of areas, the distribution positions of the air inlets 15 are increased, and gas in the upper corner area can be collected and extracted more quickly.
The other side of first air exhauster 5 is equipped with out tuber pipe 11, and the one end intercommunication of going out tuber pipe 11 is in one side of first air exhauster 5, and the other end intercommunication has third air exhauster 25, and the gas of first air exhauster 5 extraction is carried to the well outside through going out tuber pipe 11 to through the secondary drainage of the third air exhauster 25 that is located the well outside, make gas smoothly taken out.
One side of the second exhaust fan 9 is communicated with a plurality of air outlets 7, and the fresh air drawn by the second exhaust fan 9 is dispersed to the upper corner area through the plurality of air outlets 7, so that the air environment is improved.
The air outlets 7 and the air inlets 15 are respectively located at two sides of the base frame 1, which are far away from each other, an air inlet pipe 10 is arranged at the other side of the second exhaust fan 9, one end of the air inlet pipe 10 is communicated with one side of the second exhaust fan 9, and the other end of the air inlet pipe extends to one side of the third exhaust fan 25 along with the air outlet pipe 11.
Based on the above structure, the base frame 1 is placed in the upper corner area, one end of the third exhaust fan 25 and one end of the air inlet pipe 10 are located outside the well, the first exhaust fan 5 extracts air in the upper corner area, the second exhaust fan 9 reversely extracts air to extract fresh air outside the well to the upper corner area, so as to improve the air environment, the plurality of expansion brackets 16 enable the plurality of air inlets 15 to be respectively located in a plurality of areas, the distribution positions of the air inlets 15 are increased, so that the air in the upper corner area can be collected and extracted more quickly, the air extracted by the first exhaust fan 5 is conveyed outside the well through the air outlet pipe 11, and is extracted by the third exhaust fan 25 located outside the well for the second time, so that the air is extracted smoothly, the fresh air extracted by the second exhaust fan 9 is dispersed to the upper corner area through the plurality of air outlets 7, so as to improve the air environment quickly, the extracted air is primarily purified by the filter box 13, and the gas in the upper corner area is prevented from being mixed with pollutants such as dust and the like to cause secondary pollution to other areas discharging the gas.
In this embodiment, the plurality of air outlets 7 are all fixedly installed with one-way valves 8, the one-way valves 8 are internally provided with conical surfaces 28, one side of each conical surface 28 is communicated with the air outlet 7, the other side of each conical surface 28 is provided with a movable round ball 29 matched with the corresponding conical surface, the outer side wall of each movable round ball 29 is fixedly connected with a spring 30, the spring 30 is positioned at a position far away from one side of the conical surface 28, the one-way valves 8 are separated from or close to the conical surfaces 28 through the movable round balls 29 to control the on-off of the air outlets, when the air pressure overcomes the elasticity of the spring 30 to make the movable ball 29 move to the spring 30 side, the movable ball 29 is separated from the conical surface 28, the air outlet 7 is communicated, the air can circulate, the air outlet 7 is closed when the air pressure is reversed, the air can not circulate, this prevents the air in the upper corner from diffusing into the outlet 7 when the second blower 9 is turned off, thereby keeping the air in the outlet 7 fresh.
In this embodiment, the mesh enclosure 17 is all fixedly connected to the one end of a plurality of air inlets 15, the mesh enclosure 17 is linked together with the one end of air inlet 15, a plurality of bleeder vents have evenly been seted up on the lateral wall of mesh enclosure 17, a plurality of mesh enclosures 17 all are located one side position department that corresponds fixed ring 27, under the less condition in upper corner space region, a plurality of air inlets 15 can touch the wall of a well etc. department, make the 15 mouth of pipe of air inlet withstand and cause the air inlet not smooth, influence is taken out and draws, the mesh enclosure 17 can protect the 15 mouth of pipe of air inlet, make the mouth of pipe can keep the 15 unblocked of air inlet through the bleeder vent under the circumstances of withstanding.
In this embodiment, a plurality of support sleeves 2 are fixedly mounted on the bottom side of the base frame 1, a support screw 21 is mounted on each of the support sleeves 2 in a threaded manner, a hexagonal block 22 is mounted on each of the support screws 21 near the bottom end, and the support screws 21 are moved on the support sleeves 2 by rotating the support screws 21 respectively, so as to adjust the distance from the bottom ends of the support screws 21 to the base frame 1 and adapt to the ground with different heights, so that the top surface of the base frame 1 is kept in a horizontal plane state, and the support screws 21 are rotated by applying force conveniently through the hexagonal block 22.
In this embodiment, a plurality of support screw 21's bottom all is equipped with toper structure 24, the equal fixed sleeve of one end of a plurality of support screw 21 installs disc 23, a plurality of discs 23 all are located correspond hexagonal piece 22 and correspond position department between the toper structure 24, can support the faster ground that inserts of screw 21 through toper structure 24, disc 23 can increase lifting surface, it is more firm to make support screw 21, can prevent simultaneously that dust from overflowing to hexagonal piece 22 region, keep it clean.
In this embodiment, a plurality of reinforcing cross bars 19 are uniformly and fixedly mounted on the inner side wall, which is close to each other, of the base frame 1, the reinforcing cross bars 19 are all located at the bottom side of the base plate 18, and correspond to the positions of the plurality of supporting sleeves 2, the rigidity of the base frame 1 can be increased by the plurality of reinforcing cross bars 19, so that the base frame 1 is more stable, and the supporting sleeves 2 correspond to each other, bear gravity, and prevent the base frame 1 from deforming.
In this embodiment, the multi-link support 14 is fixedly mounted on the top side of the substrate 18, the illumination lamp 12 is fixedly mounted on the top end of the multi-link support 14, the angle and the length of the multi-link support 14 can be adjusted, the position of the illumination lamp 12 can be adjusted conveniently, the corresponding area can be illuminated conveniently, and related operations can be performed conveniently under the illumination of the illumination lamp 12.
In this embodiment, a filter screen 26 is fixedly mounted on one side of the third exhaust fan 25 and one end of the air inlet pipe 10, a plurality of layers of filter cotton 20 are fixedly mounted in the cavity of the filter box 13, the filter screen 26 can prevent the air inlet pipe 10 and the air outlet pipe 11 from being blocked due to the entering of foreign matters, so that the pipeline is not smooth, the large granular substances such as dust can be filtered through the plurality of layers of filter cotton 20, the pipeline is prevented from being silted to cause unsmooth movement, meanwhile, extracted gas can be primarily purified, the gas outside the well is prevented from being polluted, and the dual protection effect is achieved.
In this embodiment, the top side fixed mounting of base plate 18 has mount 6, and the top side of mount 6 is equipped with oval clamp, and air-supply line 10 and play tuber pipe 11 fixed mounting are parallel in oval clamp, through mount 6 with air-supply line 10 and play tuber pipe 11 fixed mounting parallel on base plate 18, increase the stability of pipeline, do benefit to simultaneously and remove bed frame 1.
In this embodiment, the equal fixed mounting in the bottom side of bed frame 1 near four turning positions department has branch 4, and the equal fixed mounting in bottom of four branch 4 has loose wheel 3, is convenient for remove bed frame 1 through loose wheel 3, can increase the height that bed frame 1 is apart from ground through branch 4 to bed frame 1 can move smoothly on different unevenness subaerial.
This practical theory of operation: the base frame 1 is placed in an upper corner area, one end of a third exhaust fan 25 and one end of an air inlet pipe 10 are arranged outside a well, the first exhaust fan 5 extracts air in the upper corner area, the second exhaust fan 9 reversely extracts air to extract fresh air outside the well to the upper corner area, so that the air environment is improved, the plurality of expansion brackets 16 enable the plurality of air inlets 15 to be respectively arranged in a plurality of areas, the distribution positions of the air inlets 15 are increased, so that the air in the upper corner area can be collected and extracted more quickly, the air extracted by the first exhaust fan 5 is conveyed out of the well through the air outlet pipe 11, and is extracted secondarily through the third exhaust fan 25 arranged outside the well, so that the air is extracted smoothly, the fresh air extracted by the second exhaust fan 9 is dispersed to the upper corner area through the plurality of air outlets 7, so that the air environment is improved quickly, the extracted air is primarily purified through the filter box 13, and the air in the upper corner area is prevented from being mixed with pollutants such as dust and the like, causing secondary pollution to other areas where the gas is discharged.
Through the arrangement of the one-way valve 8, when the air pressure overcomes the elasticity of the spring 30 to enable the movable round ball 29 to move towards the spring 30, the movable round ball 29 is separated from the conical surface 28, the air outlet 7 is communicated, the air can circulate, the air outlet 7 is closed when the air pressure is reversed, the air can not circulate, thus the air at the upper corner can be prevented from diffusing into the air outlet 7 when the second exhaust fan 9 is closed, the air in the air outlet 7 is kept in a fresh state, the mesh cover 17 can protect the pipe orifice of the air inlet 15, the pipe orifice can keep the air inlet 15 smooth through the air holes under the condition that the pipe orifice is jacked, the extraction is ensured, the supporting screw rods 21 can move on the supporting sleeve 2 by respectively rotating the plurality of supporting screw rods 21, the distance from the bottom ends of the supporting screw rods 21 to the base frame 1 is adjusted to adapt to the ground with different heights, the top surface of the base frame 1 is kept, the supporting screw 21 can be inserted into the ground more quickly through the conical structure 24, the stress area of the disc 23 can be increased, the supporting screw 21 is more stable, meanwhile, dust can be prevented from overflowing to the hexagonal block 22 area to keep the hexagonal block clean, the plurality of reinforcing cross bars 19 can increase the rigidity of the base frame 1 to ensure that the base frame 1 is more stable and corresponds to the supporting sleeve 2 to bear gravity to prevent the base frame 1 from deforming, the related operation is convenient to be carried out under the illumination of the illuminating lamp 12, the filter cotton 20 can preliminarily purify the extracted gas, prevent the gas outside the well from being polluted, play a role of double protection, increase the stability of the pipeline through the fixing frame 6, do benefit to simultaneously and remove bed frame 1, be convenient for remove bed frame 1 through loose wheel 3, can increase the height of bed frame 1 apart from ground through branch 4 to bed frame 1 can move smoothly on different unevenness subaerial.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a colliery coal face upper corner gas drainage device, includes bed frame (1), its characterized in that: the air purifier is characterized in that a base plate (18) is fixedly mounted on the top side of the base frame (1), a first exhaust fan (5) and a second exhaust fan (9) are fixedly mounted on the top side of the base plate (18), a filter box (13) is fixedly connected to one side of the first exhaust fan (5), a plurality of air inlets (15) are fixedly communicated with the outer side wall of the filter box (13), a plurality of expansion brackets (16) are fixedly mounted at one ends of the air inlets (15) through fixing rings (27), one ends of the expansion brackets (16) are fixedly mounted on the top surface of the base plate (18), an air outlet pipe (11) is arranged on the other side of the first exhaust fan (5), one end of the air outlet pipe (11) is communicated with one side of the first exhaust fan (5), the other end of the air outlet pipe is communicated with a third exhaust fan (25), and one side of the second exhaust fan (9) is communicated with a, it is a plurality of air outlet (7) and a plurality of air intake (15) are located respectively the both sides position department that bed frame (1) kept away from each other, the opposite side of second air exhauster (9) is equipped with air-supply line (10), the one end intercommunication of air-supply line (10) is in one side of second air exhauster (9), the other end is followed go out tuber pipe (11) and extend to one side of third air exhauster (25).
2. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that: a plurality of equal fixed mounting has check valve (8) on air outlet (7), be equipped with conical surface (28) in check valve (8), one side of conical surface (28) with air outlet (7) are linked together, and the opposite side is equipped with movable ball (29) rather than the looks adaptation, fixedly connected with spring (30) on the lateral wall of activity ball (29), spring (30) are located and keep away from one side position department of conical surface (28).
3. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that: it is a plurality of screen panel (17) has all been fixed to have cup jointed to the one end of air intake (15), screen panel (17) with the one end of air intake (15) is linked together, a plurality of bleeder vents have evenly been seted up on the lateral wall of screen panel (17), and is a plurality of screen panel (17) all are located and correspond one side position department of solid fixed ring (27).
4. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that: the bottom side fixed mounting of bed frame (1) has a plurality of supports cover (2), and is a plurality of support screw rod (21) are installed to all the spiro union on supporting cover (2), and is a plurality of equal fixed cup joint of the department of being close to the bottom position on support screw rod (21) is installed hexagonal piece (22).
5. The coal mine coal face upper corner gas extraction device according to claim 4, characterized in that: a plurality of the bottom of supporting screw (21) all is equipped with toper structure (24), and is a plurality of disc (23) are installed to the equal fixed socket of one end of supporting screw (21), and are a plurality of disc (23) all are located and correspond hexagonal piece (22) and correspond position department between toper structure (24).
6. The coal mine coal face upper corner gas extraction device according to claim 4, characterized in that: a plurality of reinforcing cross rods (19) are uniformly and fixedly mounted on the inner side walls, close to each other, of the base frame (1), and the reinforcing cross rods (19) are located on the bottom side of the base plate (18) and correspond to the positions of the supporting sleeves (2).
7. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that: the top side of base plate (18) is fixed mounting has many connecting rod support (14), the top fixed mounting of many connecting rod support (14) has light (12).
8. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that: one side of third air exhauster (25) with the equal fixed mounting of one end of air-supply line (10) has filter screen (26), the intracavity fixed mounting of rose box (13) has multilayer filter pulp (20).
9. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that: the top side fixed mounting of base plate (18) has mount (6), the top side of mount (6) is equipped with oval clamp, air-supply line (10) with it is fixed mounting side by side to go out tuber pipe (11) in the oval clamp.
10. The coal mine coal face upper corner gas extraction device according to claim 1, characterized in that: the bottom side of bed frame (1) is close to equal fixed mounting in four corner positions department has branch (4), four the equal fixed mounting in bottom of branch (4) has activity wheel (3).
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| CN202011498955.6A CN112483164B (en) | 2020-12-17 | 2020-12-17 | Gas extraction device for upper corners of coal mining working face of coal mine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011498955.6A CN112483164B (en) | 2020-12-17 | 2020-12-17 | Gas extraction device for upper corners of coal mining working face of coal mine |
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| CN112483164A true CN112483164A (en) | 2021-03-12 |
| CN112483164B CN112483164B (en) | 2023-07-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837708A (en) * | 2022-06-02 | 2022-08-02 | 安徽理工大学 | Multi-resource complementary collecting device for mine exploitation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2891612B1 (en) * | 2005-10-05 | 2007-12-28 | Patrick Kalb | BLOW-ON AND RETRACTABLE DUE-DUMPING DUCTING CONDUIT |
| CN109113783A (en) * | 2018-08-25 | 2019-01-01 | 许明 | A kind of gas extraction device for an upper corner of a coal mining working face |
| CN109611689A (en) * | 2018-12-30 | 2019-04-12 | 炬邦森业(天津)能源技术有限公司 | Low concentration gas processing equipment |
| CN110566265A (en) * | 2019-09-20 | 2019-12-13 | 河南城建学院 | Coal mine underground gas circulating pumping and draining system |
| CN210564642U (en) * | 2019-09-27 | 2020-05-19 | 大同煤矿集团有限责任公司 | Coal mine high gas coal face upper corner gas dispersion extraction device |
| CN111648815A (en) * | 2020-06-12 | 2020-09-11 | 张森荣 | Dust removal equipment for mine and use method thereof |
-
2020
- 2020-12-17 CN CN202011498955.6A patent/CN112483164B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2891612B1 (en) * | 2005-10-05 | 2007-12-28 | Patrick Kalb | BLOW-ON AND RETRACTABLE DUE-DUMPING DUCTING CONDUIT |
| CN109113783A (en) * | 2018-08-25 | 2019-01-01 | 许明 | A kind of gas extraction device for an upper corner of a coal mining working face |
| CN109611689A (en) * | 2018-12-30 | 2019-04-12 | 炬邦森业(天津)能源技术有限公司 | Low concentration gas processing equipment |
| CN110566265A (en) * | 2019-09-20 | 2019-12-13 | 河南城建学院 | Coal mine underground gas circulating pumping and draining system |
| CN210564642U (en) * | 2019-09-27 | 2020-05-19 | 大同煤矿集团有限责任公司 | Coal mine high gas coal face upper corner gas dispersion extraction device |
| CN111648815A (en) * | 2020-06-12 | 2020-09-11 | 张森荣 | Dust removal equipment for mine and use method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114837708A (en) * | 2022-06-02 | 2022-08-02 | 安徽理工大学 | Multi-resource complementary collecting device for mine exploitation |
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| CN112483164B (en) | 2023-07-14 |
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