CN219957055U - Underground coal mine gas extraction combined negative pressure fixed point sampling device - Google Patents
Underground coal mine gas extraction combined negative pressure fixed point sampling device Download PDFInfo
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- CN219957055U CN219957055U CN202321189681.1U CN202321189681U CN219957055U CN 219957055 U CN219957055 U CN 219957055U CN 202321189681 U CN202321189681 U CN 202321189681U CN 219957055 U CN219957055 U CN 219957055U
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Abstract
The utility model discloses a coal mine underground gas extraction combined negative pressure fixed-point sampling device, which comprises: the base is arranged on the left side of the rock wall or the coal wall, the lower end of the base is fixedly provided with a brake wheel, and the upper end of the support rod is fixedly provided with a top plate; the connecting block is connected to the outer surface of the connecting rod, and the right end of the connecting block is fixedly provided with a hydraulic machine; the through hole is formed in the outer end face of the mounting rod, and the filter cover is fixedly connected inside the mounting rod; the gas extraction negative pressure pump is fixedly arranged on the upper end face of the base, and a gas collecting box is arranged at the left end of the gas extraction negative pressure pump. This colliery is gas drainage in pit and is united negative pressure fixed point sampling device, be convenient for adjust the drilling and take a sample height, and leak protection gas effect is better, is convenient for filter buggy mineral dust simultaneously, and classification collection gas and coal sample have solved current gas fixed point sampling device and easily lead to the problem that the gas sampling pipeline blockked up.
Description
Technical Field
The utility model relates to the technical field of coal mine gas fixed-point sampling devices, in particular to a coal mine underground gas extraction combined negative pressure fixed-point sampling device.
Background
The gas extraction is a fundamental measure for preventing and controlling coal mine gas outburst accidents, and from the beginning of the 50 th century, the gas extraction technology is taken as an important measure for controlling coal mine gas disasters in China, in the coal mine gas outburst disaster prevention and control work, coal samples can be collected in a coal bed through a negative pressure fixed-point sampling device, and then the coal bed gas content is detected through a desorption method, however, most coal mine gas fixed-point sampling devices in the market still have some defects, such as;
the utility model discloses a colliery underground gas extraction combines negative pressure fixed point sampling device with CN218030271U, and it is applicable to gas mine underground drainage lane negative pressure fixed point sampling and gas extraction operation. The gas extraction combined negative pressure fixed point sampling device is characterized in that a drilling machine is combined to perform negative pressure fixed point sampling operation on the basis of a downhole bottom drainage roadway gas extraction system. Compared with the conventional sampling, the gas extraction combined negative pressure fixed-point sampling method can accurately sample at fixed points, drill and simultaneously perform gas extraction to avoid gas overrun; meanwhile, the method avoids using a negative pressure pump, reduces the underground workload and the use of electrical equipment, and finally achieves the purpose of avoiding overrun of gas extraction during negative pressure fixed-point sampling and drilling.
However, the prior art solutions described above have the following drawbacks: it is inconvenient to adjust the drilling and sampling height, and is inconvenient to filter the buggy, easily leads to the gas sampling pipeline to block up, and then has certain use defect, therefore, we propose a colliery underground gas extraction to unite negative pressure fixed point sampling device to in order to solve the problem that above-mentioned was put forward.
Disclosure of Invention
The utility model aims to provide a coal mine underground gas extraction combined negative pressure fixed-point sampling device, which is used for solving the problems that the existing gas fixed-point sampling device provided in the background art is inconvenient to adjust the drilling sampling height, is inconvenient to filter coal dust and is easy to cause blockage of a gas sampling pipeline.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a colliery is gas drainage in pit allies oneself with negative pressure fixed point sampling device, includes:
the base is arranged on the left side of a rock wall or a coal wall, a brake wheel is fixedly arranged at the lower end of the base, a supporting rod is fixedly connected to the upper end face of the base, a top plate is fixedly arranged at the upper end of the supporting rod, a motor is fixedly arranged at the upper end face of the top plate, and a connecting rod is fixedly connected to the lower end of the motor;
the right end of the connecting block is fixedly connected with a hydraulic machine, the right end of the hydraulic machine is fixedly connected with a mounting rod, the right end of the mounting rod is fixedly connected with a drill bit, and the outer surface of the mounting rod is fixedly connected with a sealing ring;
the through hole is formed in the outer end face of the mounting rod, the filter cover is fixedly connected to the inside of the mounting rod, the exhaust pipe is fixedly connected to the inside of the filter cover, the air inlet hole is formed in the outer end of the exhaust pipe, and the dust pipe is fixedly connected to the inside of the mounting rod;
the gas drainage negative pressure pump is fixedly arranged on the upper end face of the base, a gas collecting box is arranged at the left end of the gas drainage negative pressure pump, a coal sample collecting chamber is arranged at the rear side of the gas collecting box, and a booster pump is fixedly arranged at the upper end of the coal sample collecting chamber.
Preferably, the supporting rods are symmetrically arranged on the left and right sides of the vertical center line of the connecting rod, the supporting rods penetrate through the inside of the connecting block, and the connecting block and the supporting rods form sliding connection.
Preferably, the connecting rod is rotatably arranged at the upper end of the base through a bearing structure, and the connecting mode between the connecting rod and the connecting block is threaded connection.
Preferably, the drill bit is arranged with the same diameter as the sealing ring.
Preferably, the through holes are equiangularly distributed about the central axis of the mounting rod, and the through holes are arranged on the inner sides of the drill bit and the sealing ring.
Preferably, the lower end of the exhaust pipe is fixedly connected with a negative pressure pipeline, and the lower end of the negative pressure pipeline is fixedly connected with a gas extraction negative pressure pump.
Preferably, the air inlet holes are arranged on the inner side of the filter cover, and the air inlet holes are uniformly distributed on the outer end face of the exhaust pipe from left to right.
Preferably, the lower end of the dust pipe is fixedly connected with the booster pump.
Compared with the prior art, the utility model has the beneficial effects that: the underground coal mine gas extraction combined negative pressure fixed-point sampling device is convenient for adjusting the drilling sampling height, has better air leakage prevention effect, is convenient for filtering pulverized coal and mineral dust, and is used for classifying and collecting gas and coal samples, thereby solving the problem that the existing gas fixed-point sampling device is easy to cause the blockage of a gas sampling pipeline;
1. the connecting rod, the connecting block and the drill bit are arranged, the connecting rod is driven to rotate through the motor, the connecting block moves outside the connecting rod and drives the hydraulic press to a proper height, and the height position of the drill bit is adjusted, so that the drilling sampling height is convenient to adjust, and the operation is more convenient;
2. the gas collecting box, the coal sample collecting chamber and the dust pipe are arranged, the diameters of the drill bit and the sealing ring are the same, the through holes are formed in the inner sides of the drill bit and the sealing ring, the drill bit drilling diameter is the same as that of the sealing ring, and the sealing ring is used for sealing the vertical face of the rock wall or the coal wall, so that gas leakage is avoided, and the practicability is better;
3. be equipped with filter mantle, inlet port and installation pole, filter through the filter mantle, the inside that gas got into the exhaust tube through the inlet port, the buggy then is through the dust pipe suction, collects the gas through the gas collecting box, collects buggy coal sample and mineral dust through the coal sample collecting room, is convenient for filter buggy mineral dust and categorised collection gas and coal sample, has solved the easy problem that leads to the gas sampling pipeline to block up of current gas fixed point sampling device.
Drawings
FIG. 1 is a schematic diagram of a front cross-sectional structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
FIG. 3 is a schematic cross-sectional view of the connection of the mounting rod and the dust tube;
FIG. 4 is a schematic side view of the air suction pipe and air inlet of the present utility model.
In the figure: 1. a base; 2. a brake wheel; 3. a support rod; 4. a top plate; 5. a motor; 6. a connecting rod; 7. a joint block; 8. a hydraulic press; 9. a mounting rod; 10. a drill bit; 11. a seal ring; 12. a through hole; 13. a filter cover; 14. an exhaust pipe; 15. an air inlet hole; 16. a dust tube; 17. a negative pressure pipeline; 18. a gas extraction negative pressure pump; 19. a gas collection box; 20. a booster pump; 21. and a coal sample collection chamber.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a colliery is gas drainage in pit allies oneself with negative pressure fixed point sampling device, includes: the base 1 is arranged at the left side of a rock wall or a coal wall, the brake wheel 2 is fixedly arranged at the lower end of the base 1, the supporting rod 3 is fixedly connected to the upper end face of the base 1, the top plate 4 is fixedly arranged at the upper end of the supporting rod 3, the motor 5 is fixedly arranged at the upper end face of the top plate 4, the connecting rod 6 is fixedly connected to the lower end of the motor 5, the connecting block 7 is connected to the outer surface of the connecting rod 6, the hydraulic press 8 is fixedly arranged at the right end of the connecting block 7, the mounting rod 9 is fixedly connected to the right end of the hydraulic press 8, as shown in fig. 1, the supporting rod 3 is symmetrically arranged left and right with respect to the vertical center line of the connecting rod 6, the supporting rod 3 penetrates through the inside of the connecting block 7, the supporting rod 3 plays a role in supporting the top plate 4, the limiting role is played on the connecting block 7, the right end of the mounting rod 9 is fixedly connected with the drill bit 10, the outer surface of the mounting rod 9 is fixedly connected with the sealing ring 11, and the outer end face of the mounting rod 9 is provided with the through hole 12;
the inside fixedly connected with filter mantle 13 of installation pole 9, and filter mantle 13's inside fixedly connected with exhaust tube 14, and the inlet port 15 has been seted up to the outer end of exhaust tube 14, as shown in fig. 3, inlet port 15 sets up the inboard at filter mantle 13, and inlet port 15 evenly distributed is in the outer terminal surface of exhaust tube 14 from left to right, the gas is to the inside air inlet of exhaust tube 14 through inlet port 15, the inside fixedly connected with dust pipe 16 of installation pole 9, the up end of gas extraction negative pressure pump 18 base 1 fixedly installs gas extraction negative pressure pump 18, and the left end of gas extraction negative pressure pump 18 is provided with gas collecting box 19, the lower extreme fixedly connected with negative pressure pipeline 17 of exhaust tube 14, and the lower extreme and the gas extraction negative pressure pump 18 fixedly connected of negative pressure pipeline 17, as shown in fig. 1, the rear side of gas collecting box 19 is provided with coal sample collecting chamber 21, and gas sample collecting chamber 21 fixedly installed at the up end of base 1, the upper end fixed mounting of coal sample collecting chamber 21 has booster pump 20, and 20 and the lower extreme fixedly connected with dust of dust pipe 16.
When the underground coal mine gas extraction combined negative pressure fixed point sampling device is used, firstly, the motor 5 is used for driving the connecting rod 6 to rotate, as shown in the figure 1, the connecting rod 6 is rotatably arranged at the upper end of the base 1 through a bearing structure, the connecting rod 6 is in threaded connection with the connecting block 7, the connecting block 7 and the supporting rod 3 form sliding connection, the connecting block 7 moves outside the connecting rod 6 and drives the hydraulic machine 8 to a proper height, the base 1 is moved to a proper position, when the drill bit 10 is drilled to a sampling point through the hydraulic machine 8, as shown in the figures 1 and 4, the gas extraction negative pressure pump 18 is used for providing negative pressure power, and gas or coal dust inside a rock wall or a coal wall enters the mounting rod 9 through the through hole 12 and is fixed on the base 1 through the brake wheel 2 due to the equal angle distribution of the through hole 12 relative to the central axis of the mounting rod 9;
specifically, as shown in fig. 1, 2 and 3, as the diameters of the drill bit 10 and the sealing ring 11 are the same, and the through holes 12 are formed in the inner sides of the drill bit 10 and the sealing ring 11, the diameter of the drill hole of the drill bit 10 is the same as that of the sealing ring 11, the vertical face of a rock wall or a coal wall is sealed by the sealing ring 11, gas leakage is avoided, the gas in the mounting rod 9 is filtered by the filter cover 13 and enters the inside of the exhaust tube 14 through the air inlet 15, coal dust is sucked out through the dust tube 16, the gas is collected through the gas collecting box 19, and the coal dust and the mineral dust are collected through the coal sample collecting chamber 21, so that the method for using the combined negative pressure fixed point sampling device for underground coal mine gas extraction is provided.
Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (8)
1. The utility model provides a colliery is gas drainage in pit and is united negative pressure fixed point sampling device which characterized in that: comprising the following steps:
the base is arranged on the left side of a rock wall or a coal wall, a brake wheel is fixedly arranged at the lower end of the base, a supporting rod is fixedly connected to the upper end face of the base, a top plate is fixedly arranged at the upper end of the supporting rod, a motor is fixedly arranged at the upper end face of the top plate, and a connecting rod is fixedly connected to the lower end of the motor;
the right end of the connecting block is fixedly connected with a hydraulic machine, the right end of the hydraulic machine is fixedly connected with a mounting rod, the right end of the mounting rod is fixedly connected with a drill bit, and the outer surface of the mounting rod is fixedly connected with a sealing ring;
the through hole is formed in the outer end face of the mounting rod, the filter cover is fixedly connected to the inside of the mounting rod, the exhaust pipe is fixedly connected to the inside of the filter cover, the air inlet hole is formed in the outer end of the exhaust pipe, and the dust pipe is fixedly connected to the inside of the mounting rod;
the gas drainage negative pressure pump is fixedly arranged on the upper end face of the base, a gas collecting box is arranged at the left end of the gas drainage negative pressure pump, a coal sample collecting chamber is arranged at the rear side of the gas collecting box, and a booster pump is fixedly arranged at the upper end of the coal sample collecting chamber.
2. The underground coal mine gas extraction combined negative pressure fixed point sampling device according to claim 1, wherein: the support rods are symmetrically arranged on the left and right of the vertical center line of the connecting rod, the support rods penetrate through the inside of the connecting block, and the connecting block and the support rods form sliding connection.
3. The underground coal mine gas extraction combined negative pressure fixed point sampling device according to claim 2, wherein: the connecting rod is rotatably arranged at the upper end of the base through the bearing structure, and the connecting mode between the connecting rod and the connecting block is threaded connection.
4. The underground coal mine gas extraction combined negative pressure fixed point sampling device according to claim 1, wherein: the diameter of the drill bit is the same as that of the sealing ring.
5. The underground coal mine gas extraction combined negative pressure fixed point sampling device according to claim 4, wherein: the through holes are distributed at equal angles relative to the central axis of the mounting rod, and the through holes are arranged on the inner sides of the drill bit and the sealing ring.
6. The underground coal mine gas extraction combined negative pressure fixed point sampling device according to claim 1, wherein: the lower end of the exhaust pipe is fixedly connected with a negative pressure pipeline, and the lower end of the negative pressure pipeline is fixedly connected with a gas extraction negative pressure pump.
7. The underground coal mine gas extraction combined negative pressure fixed point sampling device according to claim 1, wherein: the air inlet holes are arranged on the inner side of the filter cover and are uniformly distributed on the outer end face of the exhaust pipe from left to right.
8. The underground coal mine gas extraction combined negative pressure fixed point sampling device according to claim 1, wherein: the lower end of the dust pipe is fixedly connected with the booster pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321189681.1U CN219957055U (en) | 2023-05-17 | 2023-05-17 | Underground coal mine gas extraction combined negative pressure fixed point sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321189681.1U CN219957055U (en) | 2023-05-17 | 2023-05-17 | Underground coal mine gas extraction combined negative pressure fixed point sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219957055U true CN219957055U (en) | 2023-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321189681.1U Active CN219957055U (en) | 2023-05-17 | 2023-05-17 | Underground coal mine gas extraction combined negative pressure fixed point sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219957055U (en) |
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2023
- 2023-05-17 CN CN202321189681.1U patent/CN219957055U/en active Active
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