CN118179178B - Coal bed gas filter - Google Patents
Coal bed gas filter Download PDFInfo
- Publication number
- CN118179178B CN118179178B CN202410612086.7A CN202410612086A CN118179178B CN 118179178 B CN118179178 B CN 118179178B CN 202410612086 A CN202410612086 A CN 202410612086A CN 118179178 B CN118179178 B CN 118179178B
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- Prior art keywords
- mixer
- washing tank
- tank
- coal bed
- bed gas
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- 239000003245 coal Substances 0.000 title claims abstract description 53
- 238000005406 washing Methods 0.000 claims abstract description 74
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 49
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000010865 sewage Substances 0.000 claims description 23
- 238000007664 blowing Methods 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 239000002274 desiccant Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 abstract description 24
- 239000012535 impurity Substances 0.000 abstract description 21
- 239000003599 detergent Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 38
- 239000003595 mist Substances 0.000 description 18
- 230000000694 effects Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000000739 chaotic effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
- B01D47/021—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by bubbling the gas through a liquid bath
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/35—Arrangements for separating materials produced by the well specially adapted for separating solids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention relates to the technical field of coal bed gas exploitation, and provides a coal bed gas filter, which comprises a washing tank and a bubble generator arranged in the washing tank. The washing tank is internally provided with washing liquid. The bubble generator is submerged in the wash liquid. The bubble generator is provided with a plurality of air holes so that the coal bed gas enters the washing liquid through the air holes. When the coal bed gas filter is used, the coal bed gas to be filtered is introduced into the bubble generator, so that the coal bed gas is discharged into the detergent through a plurality of air holes. The detergent can be clear water. The coalbed methane forms bubbles after entering the clean water and gradually moves towards the water surface, and finally passes through the water. The coal bed gas is washed by water in the process of passing through the detergent, so that the particle impurities in the coal bed gas are left, and the coal bed gas leaves the water to flow away. Through the mode, the coal bed gas can be well cleaned and decontaminated, and then the coal bed gas can be better filtered.
Description
Technical Field
The invention relates to the technical field of coal bed gas exploitation, in particular to a coal bed gas filter.
Background
With the rise of the coalbed methane industry, the coal bed methane collection and transportation project is more and more, the coalbed methane collection working condition is very complex, and the conventional filtering separator with single function can not meet the field process requirement.
The structure of the single filtering separator is commonly two-stage filtering, one-stage filtering separation by a filter element, and the other-stage filtering separation by a silk screen. The filter element filters and separates and mainly removes the solid impurity in the natural gas, and the silk screen captures and separates and mainly removes the liquid impurity in the natural gas. Under the condition that the gas quality is relatively clean, the filter separator can effectively ensure the cleanliness of the natural gas entering the lower end flow path. However, coal bed gas contains coal dust and liquid, impurities are easy to adhere to the filter element, the filter element is easy to be blocked and broken down by the filter separator, and impurity moisture enters the downstream and other series of conditions. Therefore, there is a need for a filter that can well filter particulate impurities such as coal fines in coalbed methane.
Disclosure of Invention
The invention aims to provide a coal bed gas filter which can effectively filter particle impurities in coal bed gas.
The embodiment of the invention is realized by the following technical scheme:
A coalbed methane filter, which comprises a washing tank and a bubble generator arranged in the washing tank; a washing liquid is arranged in the washing tank; the bubble generator is submerged in the washing liquid; the bubble generator is provided with a plurality of air holes so that coal bed gas enters the washing liquid through the air holes.
Further, the device also comprises a mixer; the mixer comprises an air inlet, a liquid inlet and a drain outlet; the mixer is cylindrical; the air inlet is led into the mixer along the tangential direction of the mixer; the drain port is arranged in the center of the mixer and is positioned at the bottom of the mixer; the liquid inlet is arranged at the top of the mixer; the drain port is connected to the bubble generator.
Further, the mixer bottom is provided with an annular sump along its circumference.
Further, the dirt collecting groove protrudes outwards from the mixer; the bottom of the dirt collecting tank is provided with an annular sealing cover in a matched mode, and therefore the sealing cover can seal or open the bottom of the dirt collecting tank.
Further, a speed reducing plate is arranged right below the liquid inlet of the mixer, so that the washing liquid collides with the speed reducing plate when entering the mixer, and the flow speed is reduced.
Further, a partition plate is arranged in the washing tank, so that the partition plate divides the washing tank into a washing tank and a sewage disposal tank; the bubble generator is arranged at the bottom of the washing tank; and a drain outlet is arranged at the bottom of the drain tank of the washing tank.
Further, the drain outlet is connected with a drain pipe; the outlet of the sewage drain pipe is higher than the sewage drain outlet; the bottom of the sewage disposal tank is provided with a liquid level sensor.
Further, the top of the washing tank is provided with an exhaust port; a fog baffle is arranged in the washing tank; the height of the fog baffle is larger than that of the partition plate; the fog baffle is provided with a plurality of through holes; and a drying agent is filled above the fog baffle in the washing tank.
Further, a plurality of conical water retaining cones are downwards distributed at the lower part of the fog retaining plate; the fog baffle is provided with the through hole at the root of the water baffle cone.
Further, the washing tank is also provided with a blowing pipe; one end of the blowing pipe is connected above the drying agent, and the other end of the blowing pipe is provided with a nozzle; the nozzle is positioned above the liquid level of the washing tank and points to the sewage draining tank from one side of the washing tank; the blowing pipe is also provided with an air pump.
The technical scheme of the embodiment of the invention has at least the following advantages and beneficial effects:
When the coal bed gas filter is used, the coal bed gas to be filtered is introduced into the bubble generator, so that the coal bed gas is discharged into the detergent through a plurality of air holes. The detergent can be clear water. The coalbed methane forms bubbles after entering the clean water and gradually moves towards the water surface, and finally passes through the water. The coal bed gas is washed by water in the process of passing through the detergent, so that the particle impurities in the coal bed gas are left, and the coal bed gas leaves the water to flow away. Through the mode, the coal bed gas can be well cleaned and decontaminated, and then the coal bed gas can be better filtered.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a coalbed methane filter according to the present invention;
FIG. 2 is a schematic structural view of a mixer;
FIG.3 is a top view of the mixer;
FIG. 4 is an enlarged view of FIG. 1 at a;
fig. 5 is a schematic structural view of the bubble generator.
Icon: 1-washing tank, 2-bubble generator, 3-washing liquid, 4-air hole, 5-mixer, 6-air inlet, 7-inlet, 8-drain, 9-dirt collecting tank, 10-sealing cover, 11-speed reducer, 12-washing tank, 13-blowdown tank, 14-drain, 15-blowdown pipe, 16-liquid level sensor, 17-air outlet, 18-fog baffle, 19-through hole, 20-drier, 21-water baffle cone, 22-blowing pipe, 23-nozzle, 24-air pump, 25-booster pump, 26-partition plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Examples:
As shown in fig. 1 to 5, the present invention provides a coalbed methane filter, which comprises a washing tank 1 and a bubble generator 2 arranged inside the washing tank 1. A washing liquid 3 is arranged in the washing tank 1. The washing liquid 3 may be water or other liquid. The bubble generator 2 is submerged in the washing liquid 3. As shown in fig. 5, the bubble generator 2 is internally provided with a cavity, and the cavity is provided with a plurality of air holes 4 so that coal bed gas enters the washing liquid 3 through the air holes 4.
When the coal bed gas filter is used, coal bed gas to be filtered is introduced into the bubble generator 2, so that the coal bed gas is discharged into the detergent through the plurality of air holes 4. The detergent can be clear water. The coalbed methane forms bubbles after entering the clean water and gradually moves towards the water surface, and finally passes through the water. The coal bed gas is washed by water in the process of passing through the detergent, so that the particle impurities in the coal bed gas are left, and the coal bed gas leaves the water to flow away. Through the mode, the coal bed gas can be well cleaned and decontaminated, and then the coal bed gas can be better filtered.
In practice, the smaller the size of the air holes 4, the smaller the air bubbles they produce. The mixing of the coal bed gas and the water is more facilitated, so that the particle impurities in the coal bed gas are better contacted with the water to be cleaned. The pore size of the air holes 4 may be set between 20 μm and 1 mm. It is also possible to provide a plurality of sizes of air holes 4 and to alternately arrange different sizes of air bubbles. So that bubbles with different sizes can be generated and mixed and distributed.
Bubbles of different sizes can adsorb particulate matter of different sizes. The diameter of the micro bubbles is generally below 20 microns, the micro bubbles have higher specific surface area and buoyancy, can effectively adsorb suspended matters and impurities, and are suitable for treating high-turbidity water and fine particles.
The diameter of the medium bubbles is between 20 micrometers and 100 micrometers, so that the medium-sized suspended matters and grease can be effectively brought to the water surface, and the medium-sized suspended matters and grease are suitable for common water treatment occasions.
The diameter of the large bubbles is above 100 microns, so that the device is suitable for treating large particles and grease, has higher buoyancy, and has poorer adsorption effect compared with the small bubbles.
The particles with different sizes can be adsorbed by generating bubbles with different sizes. Thereby enhancing the cleaning effect of the pulverized coal particles in the coal bed gas.
In this embodiment, a mixer 5 is also included. As shown in fig. 2 and 3, the mixer 5 includes an air inlet 6, a liquid inlet 7, and a drain 8. The mixer 5 is cylindrical. The liquid inlet 7 is provided at the top of the mixer 5 so that water enters from the top of the mixer 5. The drain port 8 is connected to the bubble generator 2, so that the coal bed gas and water mixed by the mixer 5 enter the bubble generator 2 through the drain port 8 and finally enter the interior of the washing tank 1.
The air inlet 6 opens into the interior of the mixer 5 in the tangential direction of the mixer 5. The coal bed gas to be filtered enters the interior along the tangential direction of the mixer 5. After entering, the coalbed methane flows forward along the inner wall of the mixer 5, so that the water in the mixer 5 is pushed to move together, and a rotational flow is formed in the mixer 5. The coal bed gas and the water are well mixed in the mixer 5, and then particle impurities such as coal dust are well contacted with the water. At the same time, the swirling flow also causes the larger particles to move towards the periphery of the mixer 5 under the influence of centrifugal force. So that the particle distribution inside the mixer 5 gradually increases from the center of the mixer 5 to the periphery. The drain 8 is arranged in the centre of the mixer 5 and at the bottom of the mixer 5. So that fine particles at the center of the mixer 5 are transported to the bubble generator 2 together with the water-air mixture. While large particles remain inside the mixer 5. The air hole 4 is prevented from being blocked after large-particle impurities enter the bubble generator 2. This also enables the mixer 5 to filter large particles of coal fines. And the small-particle coal powder is brought to the liquid level by bubbles after entering the washing tank 1, so that the small-particle coal powder is separated from the gas.
In this embodiment, the bottom of the mixer 5 is provided with an annular sump 9 along its circumference. The large-particle pulverized coal remaining in the mixer 5 eventually settles to the collecting tank 9 along the inner wall of the mixer 5. Thereby avoiding excessive accumulation of large particle impurities entering the central zone of the mixer 5 and being carried into the bubble generator 2.
In this embodiment, the sump 9 protrudes outwardly from the mixer 5. The bottom of the dirt collecting tank 9 is provided with an annular sealing cover 10 in a matching manner, so that the sealing cover 10 can seal or open the bottom of the dirt collecting tank 9. As shown in fig. 2, the sealing cover 10 may be screwed to the bottom of the sump 9. When the sealing cover 10 is removed, the large-particle impurities stored in the dirt collecting tank 9 can be taken out and then cleaned. The maintenance and the maintenance of the equipment are convenient.
In this embodiment, the mixer 5 is provided with a speed reducing plate 11 directly below the liquid inlet 7, so that the washing liquid 3 collides with the speed reducing plate 11 to reduce the flow rate when entering the mixer 5. So that the momentum of the water entering the mixer 5 is reduced from time to time, and the phenomenon that the rotational flow state inside the mixer 5 is influenced due to the fact that the water enters the mixer 5 too quickly is avoided. Ensure that large particle impurities can move to the edge of the mixer 5 under the swirling flow. In practice, the water spreads around along the plane of the speed reduction plate 11 after hitting the speed reduction plate 11. So that the momentum created by the water entering is directed horizontally without affecting the lower swirling flow downwards.
In general, the water-air mixture in the mixer 5 is ensured to flow to the washing tank 1 under the combined action of the entered water pressure and the air pressure. A booster pump 25 may also be added to control the pressure of the water-gas mixture entering the bubble generator 2.
In this embodiment, the inside of the washing tank 1 is provided with a partition plate 26 such that the partition plate 26 partitions the inside of the washing tank 1 into the washing tank 12 and the sewage disposal tank 13. As shown in fig. 1, the bubble generator 2 is provided at the bottom of the washing tub 12. The washing tank 1 is provided with a drain outlet 14 at the bottom of the drain tank 13. The particulate impurities in the coalbed methane, after being combined with the bubbles, float up under the buoyancy of the bubbles and float on the liquid surface of the wash tank 12. As the water-air mixture is continuously introduced into the washing tank 12, the liquid level thereof is continuously increased. When the liquid level exceeds the height of the partition plate 26, water will flow through the partition plate 26. Thereby causing the air bubbles floating on the liquid surface to follow the flow into the sewage disposal tank 13. The water entering the sewage disposal basin 13 is discharged through the sewage disposal outlet 14. At the same time, the particulate impurities filtered by the washing tank 12 enter the blowdown tank 13. These particulate impurities may be discharged through the drain 14 and may also be deposited inside the drain tank 13. The sewage disposal tank 13 is cleaned regularly, so that the normal operation of the equipment can be ensured. In practice, the bubbles generated will collapse to release the coal bed gas as they reach the surface of the wash tank 12. Only a few bubbles can float on the liquid surface.
The particle impurities cleaned out of the washing tank 12 are timely cleaned to the sewage disposal tank 13, so that the particle impurities are prevented from being remained in the washing tank 12 to increase the particle concentration in the washing tank 12, and the cleaning effect of the particles is further ensured.
In this embodiment, a drain pipe 15 is connected to the drain port 14. The outlet of the drain pipe 15 is higher than the drain outlet 14. So that the sewage outlet 14 is always filled with liquid, thereby achieving the effect of water seal and avoiding the leakage of the coal bed gas through the sewage outlet 14. In practice, the air pressure in the wash tank 1 is above atmospheric pressure, so that the level of the blowdown tank 13 is below the level of the outlet of the blowdown pipe 15. And the higher the air pressure in the washing tank 1, the lower the liquid level of the sewage disposal tank 13. The bottom of the blowdown tank 13 is provided with a liquid level sensor 16. The air pressure in the washing tank 1 can be calculated from the monitoring result of the liquid level sensor 16. That is, the air pressure inside the washing tank 1 can be controlled by controlling the liquid level of the drain tank 13. And the monitoring of the running state of the equipment is facilitated.
In this embodiment, the top of the wash tank 1 is provided with an exhaust port 17. So that the scrubbed coalbed methane flows to the upper part of the scrubbing tank 1 and is discharged through the exhaust port 17. A fog baffle 18 is arranged inside the washing tank 1. The height of the mist guard 18 is greater than the height of the separation plate 26. The mist guard 18 is provided with a number of through holes 19. The washed coalbed methane flows upwards through a plurality of through holes 19 and is discharged through an exhaust port 17.
The distance between the mist baffle 18 and the top of the partition plate 26 may be set to about 3-5 cm. In practice, the liquid level of the sink 12 is slightly above the top of the divider plate 26. After reaching the surface of the washing tank 12, the bubbles are largely destroyed, and water mist is generated. These mists, if left untreated, will largely run off with the air stream. The mist blocking plate 18 is provided to block the mist. When the bubbles break down, the water mist generated by the bubbles spreads out to the periphery under the broken momentum. That is, the direction of movement of the mist near the surface of the sink 12 is chaotic. Thus, the mist guard 18 is better able to contact the chaotic mist near the liquid surface to block the mist, reducing the probability of it flowing away with the airflow. If the fog baffle 18 is arranged higher, the water fog passes through the through holes 19 of the fog baffle 18 after the movement direction of the water fog is stable under the action of the air flow, so that the interception effect of the fog baffle 18 on the water fog is reduced.
The inside of the washing tank 1 is filled with a desiccant 20 above the mist baffle 18. The desiccant 20 is able to dry the coal bed gas passing through the through holes 19 and thus to better separate the water and gas. The desiccant 20 may also be a water absorbing material.
In this embodiment, a plurality of cone-shaped water blocking cones 21 are downwardly distributed at the lower part of the mist blocking plate 18. The fog baffle 18 is provided with a through hole 19 at the root of the water baffle cone 21. The water deflector cone 21 increases the surface area of the mist guard 18, making it more likely to contact the mist. At the same time, the mist gathers on the surface of the water cone 21 to form water droplets. Gradually flow towards the cone tip under the guide of the water retaining cone 21, and then the drop of water drops is more favorable to fall below. At the same time, the probability of the water mist carried away by the air flow coming into contact with the surface of the water deflector cone 21 during the flow to the through hole 19 increases. Thereby better blocking water mist.
In this embodiment, the wash tank 1 is also provided with a blowing pipe 22. One end of the blowing pipe 22 is connected to the upper side of the desiccant 20, and the other end is provided with a nozzle 23. The nozzle 23 is located above the liquid level of the washing tank 12 and directed from one side of the washing tank 12 towards the sump 13. The blowing pipe 22 is also provided with an air pump 24. Under the action of the air pump 24, the gas blows the foam on the liquid surface of the washing tank 12 to the sewage disposal tank 13, so as to clean timely.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A coalbed methane filter, characterized by: comprises a washing tank (1), a mixer (5) and a bubble generator (2) arranged inside the washing tank (1); a washing liquid (3) is arranged in the washing tank (1); the bubble generator (2) is submerged in the washing liquid (3); the bubble generator (2) is provided with a plurality of air holes (4) so that coal bed gas enters the washing liquid (3) through the air holes (4); the pore diameters of the plurality of pores (4) are provided with a plurality of pores, and the pores (4) of each pore diameter are uniformly distributed in the bubble generator (2); the pore diameter of the air hole (4) ranges from 20 micrometers to 1 millimeter;
The mixer (5) comprises an air inlet (6), a liquid inlet (7) and a drain outlet (8); the mixer (5) is cylindrical; the air inlet (6) is led into the mixer (5) along the tangential direction of the mixer (5); the drain outlet (8) is arranged in the center of the mixer (5) and is positioned at the bottom of the mixer (5); the liquid inlet (7) is arranged at the top of the mixer (5); the drain port (8) is connected with the bubble generator (2);
a separation plate (26) is arranged in the washing tank (1), so that the separation plate (26) separates the inside of the washing tank (1) into a washing tank (12) and a sewage disposal tank (13); the bubble generator (2) is arranged at the bottom of the washing tank (12); a drain outlet (14) is arranged at the bottom of the drain tank (13) of the washing tank (1);
A fog baffle (18) is arranged in the washing tank (1); the height of the fog baffle (18) is greater than the height of the separation plate (26); the fog baffle (18) is provided with a plurality of through holes (19); the distance between the fog baffle (18) and the top of the partition plate (26) is 3-5cm;
A plurality of conical water retaining cones (21) are downwards distributed at the lower part of the fog retaining plate (18); the fog baffle (18) is provided with the through hole (19) at the root of the water baffle cone (21);
The bottom of the mixer (5) is provided with an annular dirt collecting groove (9) along the circumference thereof; the sewage collecting groove (9) protrudes outwards from the mixer (5); the bottom of the sewage collecting tank (9) is provided with an annular sealing cover (10) in a matching manner, so that the sealing cover (10) can seal or open the bottom of the sewage collecting tank (9).
2. The coalbed methane filter of claim 1, wherein: the mixer (5) is provided with a speed reducing plate (11) under the liquid inlet (7) so that the washing liquid (3) collides with the speed reducing plate (11) to reduce the flow rate when entering the mixer (5).
3. A coalbed methane filter as claimed in claim 2, wherein: the sewage outlet (14) is connected with a sewage pipe (15); the outlet of the blow-down pipe (15) is higher than the blow-down outlet (14); the bottom of the sewage disposal tank (13) is provided with a liquid level sensor (16).
4. A coalbed methane filter as claimed in claim 3, wherein: an exhaust port (17) is arranged at the top of the washing tank (1); a drying agent (20) is filled above the fog baffle (18) in the washing tank (1).
5. A coalbed methane filter as claimed in claim 4, wherein: the washing tank (1) is also provided with a blowing pipe (22); one end of the blowing pipe (22) is connected above the drying agent (20), and the other end of the blowing pipe is provided with a nozzle (23); the nozzle (23) is positioned above the liquid level of the washing tank (12) and points from one side of the washing tank (12) to the sewage draining tank (13); the blowing pipe (22) is also provided with an air pump (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410612086.7A CN118179178B (en) | 2024-05-17 | 2024-05-17 | Coal bed gas filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410612086.7A CN118179178B (en) | 2024-05-17 | 2024-05-17 | Coal bed gas filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118179178A CN118179178A (en) | 2024-06-14 |
| CN118179178B true CN118179178B (en) | 2024-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410612086.7A Active CN118179178B (en) | 2024-05-17 | 2024-05-17 | Coal bed gas filter |
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| Country | Link |
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| CN (1) | CN118179178B (en) |
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| CN116254137A (en) * | 2022-09-08 | 2023-06-13 | 江苏大学 | Synthetic gas anhydrous circulation washing and purifying device and purifying method |
| CN219795315U (en) * | 2023-05-08 | 2023-10-03 | 王超远 | Dust collector is used in pit in colliery |
| CN219964447U (en) * | 2023-05-11 | 2023-11-07 | 曲靖常宜联合科技有限公司 | Spray absorption device for purifying tail gas of phosphorus pentoxide production system |
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| CN103056045A (en) * | 2011-10-21 | 2013-04-24 | 神华集团有限责任公司 | Primary cyclone separator for gas purification, gas purification system, gas purification method and application thereof |
| KR101679739B1 (en) * | 2016-07-21 | 2016-11-25 | 이세한 | Flotation device using high efficiency tank for dissolving a gases into liquids |
| CN107744692A (en) * | 2017-11-25 | 2018-03-02 | 邹德学 | A kind of exhaust-gas treatment cyclone dust collectors |
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