CN105536418A - Dust purification device of coal bed methane gathering and transportation pipeline - Google Patents
Dust purification device of coal bed methane gathering and transportation pipeline Download PDFInfo
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- CN105536418A CN105536418A CN201610107241.5A CN201610107241A CN105536418A CN 105536418 A CN105536418 A CN 105536418A CN 201610107241 A CN201610107241 A CN 201610107241A CN 105536418 A CN105536418 A CN 105536418A
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- cylinder
- drum
- cyclone cylinder
- whirlwind
- cyclone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
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Abstract
A dust purification device of a coal bed methane gathering and transportation pipeline comprises a filter drum (1), a whirlwind drum (2), an air manifold (5), a spraying and blowing pipe (6), a pulse valve (7), an air pump (8) and an isolation drum (10). The top of the whirlwind drum is cylindrical, the upper middle of the whirlwind drum is in a cone frustum shape, the lower middle of the whirlwind drum is in a funnel shape, and the bottom of the whirlwind drum is communicated with an ash hopper (13); an air outlet (4) is formed in the side wall of the top of the whirlwind drum, and an air inlet (3) is formed in the side wall of the upper middle of the whirlwind drum; the filter drum is fixed to the top end of the upper middle of the whirlwind drum, and the inner diameter of the filter drum is identical to the diameter of a top end opening in the whirlwind drum; the filter drum is sleeved with the isolation drum, and a spiral flow-guiding plate (11) is arranged on the side wall of the isolation drum; the air manifold is arranged at one end of the spraying and blowing pipe, the pulse valve and the air pump connected with the pulse valve in parallel are arranged at the middle end of the spraying and blowing pipe, the pipe orifice end of the spraying and blowing pipe penetrates through the side wall of the top of the whirlwind drum, and a spraying nozzle (9) is arranged at the pipe orifice end of the spraying and blowing pipe. Operation resistance is low, dust removal efficiency is high, the dust-clearing period is long, and external gas is not introduced in the process of pulse dust clearing.
Description
Technical field
The present invention relates to a kind of powder purification apparatus, be specifically related to a kind of coal bed gas gathering line powder purification apparatus.
Background technology
Coal bed gas is often entrained with the grit such as coal dust, sandstone impurity from the course of conveying of subsurface to surface, these solid impurities not only can cause the accuracy of metering instrument, but also wearing and tearing or the blocking of the assembly such as valve, compressor can be caused, thus reduce the efficiency of coal bed gas gathering system.
At present, the separating and filtering equipment that coal bed gas gathering system major part adopts is vertical filter unit, and this vertical filter unit only plays an important role to the separation of fine dusts.Because the grit impurity in gathering line has, dust concentration fluctuation is large and particle size distribution scope is wide, causes filter operating load very large.According to current filter element technique, the filter core usually adopted needs about weekly deashing once.Because the gas in coal bed gas delivery pipeline is special, can not introduce ambient atmos and carry out deashing to filter core element, therefore generally adopt the mode of more renew cartridge at present, the workload of which is comparatively large, and operating cost is high.
Summary of the invention
The object of the present invention is to provide a kind of coal bed gas gathering line powder purification apparatus, this device can reduce running resistance, improves efficiency of dust collection, extends cleaning cycle, and can not introduce ambient atmos in pulse dust cleaning process.
For achieving the above object, this coal bed gas gathering line powder purification apparatus, comprises filter cylinder, cyclone cylinder, gas bag, injection tube, pulse valve, air pump and isolating cylinder, the top of described cyclone cylinder is cylindrical shape, middle and upper part is truncated cone-shaped, and middle and lower part is infundibulate, and bottom is communicated with ash bucket; The top sidewall of described cyclone cylinder is provided with gas outlet, middle and upper part sidewall is provided with air inlet; Described filter cylinder is fixed on the top of cyclone cylinder middle and upper part, and the central shaft of filter cylinder is consistent with the central shaft of cyclone cylinder, and filter cylinder internal diameter is consistent with the top ports diameter of cyclone cylinder; Described filter cylinder overcoat has isolating cylinder, the sidewall of isolating cylinder is provided with helical form deflector; One end of described injection tube is provided with gas bag, the air pump that middle-end is provided with pulse valve and is in parallel with pulse valve, the nose end of injection tube passes the top sidewall of cyclone cylinder in cyclone cylinder, and the nose end of described injection tube is provided with perpendicular to injection tube and spout nozzle down.
Further, connect as one structure between the middle and upper part of described cyclone cylinder and middle and lower part by cylindrical drum, be provided with in the middle and lower part of cyclone cylinder in funnel shaped blanking conically shaped, the bottom of blanking conically shaped is connected with ash bucket; The external diameter of blanking conically shaped upper end cylinder is less than the internal diameter of cylindrical drum and forms annular blanking channel.
Preferably, the bevel altitude of described blanking conically shaped is 1 ~ 3cm, and the gap of blanking conically shaped and cyclone cylinder middle and lower part is at least 2cm.
Preferably, the lead angle of described helical form deflector is 10 ° ~ 25 °, and the horizontal range between the outward flange of helical form deflector and isolating cylinder is 1/2 ~ 2/3 of horizontal range between isolating cylinder outer wall and cyclone cylinder inwall.
Preferably, described isolating cylinder is the pyramidal structure that top is little, bottom is large, and the cone angle of described pyramidal structure is 5 ° ~ 12 °.
Compared with prior art, the present invention has following advantage:
(1) what the present invention adopted cyclone cylinder inner sleeve filter cylinder revolves filter formula dust arrester structure, first air-flow containing dust removes big dust particle through cyclone centrifugal effect, then through high efficiency filter effect removing granule, joint space-efficient is conducive to improving filter efficiency and extending cleaning cycle simultaneously;
(2) the present invention is looped around the surrounding of an outer formula isolating cylinder by spiral deflector, increases the wind speed of swirling eddy, thus enhances the centrifugal force effect to dust granules;
(3) the present invention carries out blanking by the mode arranging annular blanking channel in cyclone cylinder middle and lower part, greatly reduces again flying upward of adherent downslide dust in cyclone cylinder, improves the purification efficiency of this device;
(4) the present invention adopts the Parallel Design of gas bag supercharging air pump and pulse valve, using through filter cylinder purified gas as compressed gas source, utilize injection tube and nozzle as source of the gas passage, thus ensure that the gas that the gas that deashing uses is gathering system inside, do not introduce any ambient atmos.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the top view of Fig. 1;
In accompanying drawing: 1, filter cylinder, 2, cyclone cylinder, 2-1, cylindrical drum, 3, air inlet, 4, gas outlet, 5, gas bag, 6, injection tube, 7, pulse valve, 8, air pump, 9, nozzle, 10, isolating cylinder, 11, helical form deflector, 12, blanking conically shaped, 13, ash bucket, 14, annular blanking channel.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As depicted in figs. 1 and 2, a kind of coal bed gas gathering line powder purification apparatus, comprises filter cylinder 1, cyclone cylinder 2, gas bag 5, injection tube 6, pulse valve 7, air pump 8 and isolating cylinder 10, the top of described cyclone cylinder 2 is cylindrical shape, middle and upper part is truncated cone-shaped, and middle and lower part is infundibulate, and bottom is communicated with ash bucket 13; The top sidewall of described cyclone cylinder 2 is provided with gas outlet 4, middle and upper part sidewall is provided with air inlet 3;
Described filter cylinder 1 is fixed on the top of cyclone cylinder 2 middle and upper part, and the central shaft of filter cylinder 1 is consistent with the central shaft of cyclone cylinder 2, and filter cylinder 1 internal diameter is consistent with the top ports diameter of cyclone cylinder 2; Described filter cylinder 1 overcoat has isolating cylinder 10, the sidewall of isolating cylinder 10 is provided with helical form deflector 11;
One end of described injection tube 6 is provided with gas bag 5, the air pump 8 that middle-end is provided with pulse valve 7 and is in parallel with pulse valve 7, the nose end of injection tube 6 passes the top sidewall of cyclone cylinder 2 in cyclone cylinder 2, and the nose end of described injection tube 6 is provided with perpendicular to injection tube 6 and spout nozzle 9 down.
In order to reduce adherent in cyclone cylinder on dust again fly upward, structure is connected as one by cylindrical drum 2-1 between the middle and upper part of described cyclone cylinder 2 and middle and lower part, be provided with in funnel shaped blanking conically shaped 12 in the middle and lower part of cyclone cylinder 2, the bottom of blanking conically shaped 12 is connected with ash bucket 13; The external diameter of blanking conically shaped 12 upper end cylinder is less than the internal diameter of cylindrical drum 2-1 and forms annular blanking channel 14.
In order to make adherent in cyclone cylinder on dust successfully landing to ash bucket 13, thus prevent dust from again flying upward better, the bevel altitude of described blanking conically shaped 12 is 1 ~ 3cm, and blanking conically shaped 12 is at least 2cm with the gap of cyclone cylinder 2 middle and lower part.
In order to increase the wind speed of swirling eddy, strengthen the centrifugal force effect to dust granules, the lead angle of described helical form deflector 11 is 10 ° ~ 25 °, and the horizontal range between the outward flange of helical form deflector 11 and isolating cylinder 10 is 1/2 ~ 2/3 of horizontal range between isolating cylinder 10 outer wall and cyclone cylinder 2 inwall.
In order to reduce local air flow resistance, described isolating cylinder 10 is the pyramidal structure that top is little, bottom is large, and the cone angle of described pyramidal structure is 5 ° ~ 12 °.
During use, the coal bed gas of carrying dust enters cyclone cylinder 2 by air inlet 3, and under the effect of centrifugal force and inertia force, air ring rotates around the wall of cyclone cylinder 2, and spiral is descending under the effect of deflector 11 and division board 10 outer wall and cyclone cylinder 2 inwall; Dust-laden coal bed gas produces centrifugal force in rotary course, and the dust granules making severe be greater than gas overcomes gas-flow resistance and shifts to cyclone cylinder 2 inwall; Dust granules once with cyclone cylinder 2 contact internal walls after, just can lose inertia force and the adherent landing that faces down under the drive of gravity and rotating fluid.Outer formula structure of isolating cylinder 10 makes the inner space of cyclone cylinder 2 middle and upper part diminish gradually from top to bottom, air-flow wind speed becomes large gradually rotating in downward process, the centrifugal force that the air-flow that rotation is declined is down produced is stronger, the separating effect of dust granules and coal bed gas is also better, after swirling eddy arrives the adjacent bottom portions position of isolating cylinder 10, turn back by down again with same direction of rotation and upwards enter isolating cylinder 10 inside.Rise in the space of air-flow between filter cylinder 1 and isolating cylinder 10 and progress in filter cylinder 1, namely the position of the air-flow between filter cylinder 1 and isolating cylinder 10 bottom filter cylinder 1 is maximum, therefore in order to reduce local air flow resistance, described isolating cylinder 10 adopts the pyramidal structure that top is little, bottom is large.Under the effect of cyclone centrifugal power, unsegregated subparticle arrives filter cylinder 1 position along with air-flow, is intercepted at the outer wall of filter cylinder 1, and clean air-flow is then discharged from gas outlet 4 through filter cylinder 1.
Under the influence of centrifugal force, depart from the dust granules of air-flow from the adherent landing in cyclone cylinder 2 top and middle part, and increase gradually; Isolating cylinder 10 inside is entered owing to will continuing to rotate after air-flow arrival bottom position in cyclone cylinder 2 and starting rising, namely cyclone cylinder 2 bottom position air turbulence is the most severe, the dust of adherent downslide is easily rolled by air-flow and is again flown upward, therefore fly upward to prevent the dust of adherent downslide from again to be entrainmented in cyclone cylinder 2 bottom, the middle and lower part of described cyclone cylinder 2 is provided with annular blanking channel 14, when on the wall that the dust glided from top reaches cylindrical drum 2-1, gravitate directly will enter ash bucket 13 by annular blanking channel 14.
When filter cylinder 1 outer wall trapping dust reach a certain amount of after, when needing to carry out deashing to filter cylinder 1, booster air pump 8, the gas of position, gas outlet 4 enters into injection tube 6 from the position of nozzle 9, then after air pump 8 supercharging, enters gas bag 5; When the pressure in gas bag 5 reach deashing require time, starting impulse valve 7, the compressed air be accumulated in gas bag 5 sprays from nozzle 9 instantaneously through injection tube 6 and pulse valve 7, the air pulse produced carries out blowback to filter cylinder 1, the dust that filter cylinder 1 outer wall traps is blown off in ash bucket 13, thus reaches ash-removal effect.
Claims (5)
1. a coal bed gas gathering line powder purification apparatus, it is characterized in that, comprise filter cylinder (1), cyclone cylinder (2), gas bag (5), injection tube (6), pulse valve (7), air pump (8) and isolating cylinder (10), the top of described cyclone cylinder (2) is cylindrical shape, middle and upper part is truncated cone-shaped, middle and lower part is infundibulate, and bottom is communicated with ash bucket (13); The top sidewall of described cyclone cylinder (2) is provided with gas outlet (4), middle and upper part sidewall is provided with air inlet (3);
Described filter cylinder (1) is fixed on the top of cyclone cylinder (2) middle and upper part, the central shaft of filter cylinder (1) is consistent with the central shaft of cyclone cylinder (2), and filter cylinder (1) internal diameter is consistent with the top ports diameter of cyclone cylinder (2); Described filter cylinder (1) overcoat has isolating cylinder (10), the sidewall of isolating cylinder (10) is provided with helical form deflector (11);
One end of described injection tube (6) is provided with gas bag (5), the air pump (8) that middle-end is provided with pulse valve (7) and is in parallel with pulse valve (7), the nose end of injection tube (6) passes the top sidewall of cyclone cylinder (2) in cyclone cylinder (2), and the nose end of described injection tube (6) is provided with perpendicular to injection tube (6) and spout nozzle down (9).
2. a kind of coal bed gas gathering line powder purification apparatus according to claim 1, it is characterized in that, structure is connected as one by cylindrical drum (2-1) between the middle and upper part of described cyclone cylinder (2) and middle and lower part, be provided with in funnel shaped blanking conically shaped (12) in the middle and lower part of cyclone cylinder (2), the bottom of blanking conically shaped (12) is connected with ash bucket (13); The external diameter of blanking conically shaped (12) upper end cylinder is less than the internal diameter of cylindrical drum (2-1) and forms annular blanking channel (14).
3. a kind of coal bed gas gathering line powder purification apparatus according to claim 2, it is characterized in that, the bevel altitude of described blanking conically shaped (12) is 1 ~ 3cm, and blanking conically shaped (12) is at least 2cm with the gap of cyclone cylinder (2) middle and lower part.
4. a kind of coal bed gas gathering line powder purification apparatus according to claim 1 and 2, it is characterized in that, the lead angle of described helical form deflector (11) is 10 ° ~ 25 °, and the horizontal range between the outward flange of helical form deflector (11) and isolating cylinder (10) is 1/2 ~ 2/3 of horizontal range between isolating cylinder (10) outer wall and cyclone cylinder (2) inwall.
5. a kind of coal bed gas gathering line powder purification apparatus according to claim 1 and 2, is characterized in that, described isolating cylinder (10) is the pyramidal structure that top is little, bottom is large, and the cone angle of described pyramidal structure is 5 ° ~ 12 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107241.5A CN105536418B (en) | 2016-02-26 | 2016-02-26 | A kind of coal bed gas gathering line powder purification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610107241.5A CN105536418B (en) | 2016-02-26 | 2016-02-26 | A kind of coal bed gas gathering line powder purification apparatus |
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| Publication Number | Publication Date |
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| CN105536418A true CN105536418A (en) | 2016-05-04 |
| CN105536418B CN105536418B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610107241.5A Active CN105536418B (en) | 2016-02-26 | 2016-02-26 | A kind of coal bed gas gathering line powder purification apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106318471A (en) * | 2016-11-02 | 2017-01-11 | 秦家运 | Enhanced-type automatic backflow deduster |
| CN109529513A (en) * | 2018-12-24 | 2019-03-29 | 华东理工大学 | A kind of gas-solid separating device for thorium base molten salt reactor |
| CN113617166A (en) * | 2021-08-18 | 2021-11-09 | 杭州康利维环保科技有限公司 | Rotary negative pressure automatic cleaning filter |
| CN115212683A (en) * | 2021-04-21 | 2022-10-21 | 佛山希望数码印刷设备有限公司 | Gas-liquid separation device for ink |
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| JP2004160367A (en) * | 2002-11-13 | 2004-06-10 | Sanpoo:Kk | Dust collecting mechanism for dust collector and its constitution method |
| CN2780775Y (en) * | 2005-03-31 | 2006-05-17 | 上海泰山除尘设备有限公司 | Gas dry method cleaning dedust system of manganese iron blast furnace |
| CN201124125Y (en) * | 2007-11-23 | 2008-10-01 | 于广彦 | Shunt cylinder shunt type cyclone separating device |
| CN201940134U (en) * | 2010-11-30 | 2011-08-24 | 北京柯兰富尔过滤技术有限公司 | Fresh air filter |
| CN203355545U (en) * | 2013-07-08 | 2013-12-25 | 安徽省元琛环保科技有限公司 | Cyclone bag-type composite dust collector |
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2016
- 2016-02-26 CN CN201610107241.5A patent/CN105536418B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004160367A (en) * | 2002-11-13 | 2004-06-10 | Sanpoo:Kk | Dust collecting mechanism for dust collector and its constitution method |
| CN2780775Y (en) * | 2005-03-31 | 2006-05-17 | 上海泰山除尘设备有限公司 | Gas dry method cleaning dedust system of manganese iron blast furnace |
| CN201124125Y (en) * | 2007-11-23 | 2008-10-01 | 于广彦 | Shunt cylinder shunt type cyclone separating device |
| CN201940134U (en) * | 2010-11-30 | 2011-08-24 | 北京柯兰富尔过滤技术有限公司 | Fresh air filter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106318471A (en) * | 2016-11-02 | 2017-01-11 | 秦家运 | Enhanced-type automatic backflow deduster |
| CN109529513A (en) * | 2018-12-24 | 2019-03-29 | 华东理工大学 | A kind of gas-solid separating device for thorium base molten salt reactor |
| CN109529513B (en) * | 2018-12-24 | 2021-09-28 | 华东理工大学 | Gas-solid separation device for thorium-based molten salt reactor |
| CN115212683A (en) * | 2021-04-21 | 2022-10-21 | 佛山希望数码印刷设备有限公司 | Gas-liquid separation device for ink |
| CN113617166A (en) * | 2021-08-18 | 2021-11-09 | 杭州康利维环保科技有限公司 | Rotary negative pressure automatic cleaning filter |
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| Publication number | Publication date |
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| CN105536418B (en) | 2017-06-16 |
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Address after: No. 1, Tongshan University Road, Xuzhou, Jiangsu Province, Jiangsu Patentee after: China University of Mining & Technology Address before: No. 1, University Road, Xuzhou, Jiangsu Province Patentee before: China University of Mining & Technology |