CN100450579C - Wet nanometer grade vortex dust-removing device and dust removing method - Google Patents
Wet nanometer grade vortex dust-removing device and dust removing method Download PDFInfo
- Publication number
- CN100450579C CN100450579C CNB2006100225903A CN200610022590A CN100450579C CN 100450579 C CN100450579 C CN 100450579C CN B2006100225903 A CNB2006100225903 A CN B2006100225903A CN 200610022590 A CN200610022590 A CN 200610022590A CN 100450579 C CN100450579 C CN 100450579C
- Authority
- CN
- China
- Prior art keywords
- dust
- chamber
- dedusting
- purge gas
- pipe
- Prior art date
Links
- 239000000428 dust Substances 0.000 title claims abstract description 46
- 239000007789 gases Substances 0.000 claims abstract description 73
- 239000007788 liquids Substances 0.000 claims abstract description 46
- 239000006260 foams Substances 0.000 claims abstract description 36
- 210000000214 Mouth Anatomy 0.000 claims abstract description 27
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 241000208125 Nicotiana Species 0.000 claims description 35
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 35
- 238000004062 sedimentation Methods 0.000 claims description 34
- 239000003546 flue gases Substances 0.000 claims description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000003500 flue dust Substances 0.000 claims description 15
- 238000005065 mining Methods 0.000 claims description 7
- 230000002000 scavenging Effects 0.000 claims description 7
- 239000002253 acids Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 3
- 239000007921 sprays Substances 0.000 claims description 3
- 239000002245 particles Substances 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 2
- 238000005507 spraying Methods 0.000 abstract 1
- 239000000243 solutions Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 239000003570 air Substances 0.000 description 4
- 239000000203 mixtures Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 238000000034 methods Methods 0.000 description 3
- 239000002585 bases Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injections Substances 0.000 description 2
- 239000002244 precipitates Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 241001640558 Cotoneaster horizontalis Species 0.000 description 1
- 231100000614 Poisons Toxicity 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Abstract
Description
Technical field
The present invention relates to a kind of device that dusty gas is carried out dedusting, especially relate to a kind of cleaner that can effectively remove the nano level superfine dust that flue dust behind the high-risk castoff burning or mining industry produce, and dust collection method.
Background technology
High-risk discarded object, the rubbish that produces as hospital, zooperal discarded object, with useless sensitization liquid, developer solution or the like, people's custom is the most unmanageable part in the townm refuse with extraordinary rubbish of its appellation or high-risk rubbish.The a large amount of poisonous and harmful flue gases that produce in the burning disposal process directly are discharged in the atmosphere, surrounding air, water quality, natural environment are polluted very serious, have not only seriously endangered the healthy of people, have also destroyed ecological environment, and are very harmful.
Pulverize in the process at ore, also produce a large amount of dust, people claim that the dust of granularity below 0.20 μ m is the nanoscale dust, different with big dust particle is: the former is easy to remove, and this nanoscale dust is because little, the light weight of its granularity, pulverize very easily to float in the process at ore and be diffused in the air, remove that they are very difficult in for a long time.Therefore, this dust is to people, bigger to the harm of environment.
The patent No. is the Chinese patent of ZL 94212017.5, a kind of eddy current type micropore deduster is disclosed, its structure is: in the housing upper end deflection cone and air inlet pipe are housed, the housing inner chamber is equipped with vortex cone, the micropore tube is housed between vortex cone and housing, housing is equipped with blast pipe on the face of cylinder, and base cone and ash bucket are equipped with in the housing lower end.This deduster is by micropore tube and vortex cone structure in the housing, purges the micropore tube by micro porous filtration on the micropore tube and eddy current and carries out dedusting.Because its efficiency of dust collection is subjected to the restriction of filter opening on the micropore tube, efficiency of dust collection only is controlled at 97%, does not also reach the mean level of efficiency of dust collection 99%, so the deduster of this structure, dust removing effects is unsatisfactory, and is only limited to processing dry type dust-contained airflow.
Summary of the invention
The objective of the invention is to: for the user provides a kind of wet nanometer grade vortex dust-removing device that can efficiently remove flue dust or mining industry nano level superfine dust.
Another object of the present invention is: a kind of method that can efficiently remove flue dust or mining industry nano level superfine dust is provided.
The objective of the invention is to realize by the enforcement following technical proposals:
A kind of wet nanometer grade vortex dust-removing device, the body of heater that mainly has the acid and alkali-resistance lining by inwall, be contained in the tobacco juice mixing chamber that the body of heater top is connected with the venturi type equipment flue dust input mouth of pipe, the treatment fluid that is contained on this chamber locular wall sprays the mouth of pipe, be positioned at the tobacco juice expanding chamber that is communicated with it below the tobacco juice mixing chamber, be contained in the hydrocyclone that is positioned at the tobacco juice expanding chamber in the body of heater, be positioned at bottom of furnace body and collect the sedimentation basin and the slag-drip opening thereof of dust, and the Purge gas discharge mouth of pipe and the decontaminating liquid discharge mouth of pipe that are contained on the furnace body wall are formed, it is characterized in that: the described hydrocyclone that is positioned at the tobacco juice expanding chamber in the body of heater that is contained in is by the hollow deflection cone that is positioned at this hydrocyclone top point upward, sidewall is made up of the eddy current foam dust-removing chamber that slat constitutes around being contained in this deflection cone bottom; Constitute the slat of wall around this eddy current foam dust-removing chamber, by around the vertical axis of hollow deflection cone, equidistantly arrange each other, top, blade face has following bending angle and is positioned at the outdoor circle of this foam dust-removing and be similar to the leg-of-mutton fin of curved surface and formed; Also include and be arranged on that this eddy current foam dust-removing Shi Xia Bu And is communicated with it, sidewall and have the circulator that Purge gas discharge pipe and foam liquid remove out pipe, Purge gas discharge pipe on the circulator sidewall and the Purge gas on the furnace body wall are discharged the mouth of pipe and are fused, and the foam liquid discharge pipe then stretches to sedimentation basin.
In above-mentioned wet nanometer grade vortex dust-removing device, described and eddy current foam dust-removing chamber, hollow deflection cone are formed the circulator of one, be seat be contained in the sedimentation basin top, along the most of level of inboard wall of furnace body along on the horizontal semitight division board of being formed of sedimentation basin.
In above-mentioned wet nanometer grade vortex dust-removing device, on the horizontal semitight division board of this sedimentation basin, be provided with the Purge gas passing away that is communicated with Purge gas discharge pipe on the circulator.
In above-mentioned wet nanometer grade vortex dust-removing device, also be provided with and be positioned at below the horizontal semitight division board of sedimentation basin, the filter that liquid in the sedimentation basin is filtered.
Above-mentioned wet nanometer grade vortex dust-removing device also is equipped with the heat exchanger of protecting special constant temperature for the foam solution in the cavity and Purge gas in described circulator cavity.
The dedusting operation principle of dust arrester of the present invention is as follows:
With pending flue gas or mining industry nanoscale dusty gas, enter the tobacco juice mixing chamber at body of heater top by the flue dust gas inlet pipe of venturi type equipment, the injection mouth of pipe on this locular wall simultaneously, the treatment fluid that will contain chemical reagent sprays into indoor and flue gas hybrid cooling with the pressure of 0.20-0.30MPa, the tobacco juice of hybrid cooling enters the tobacco juice expanding chamber of bottom then, because the volumetric expansion flow velocity slows down, the above bulky grain flue dust of 50 μ m in the flue gas, the separated sedimentation basin that falls in tobacco juice volumetric expansion diffusion process, and the tobacco juice mixed liquor after overexpansion diffusion dedusting, accelerate because of the channel narrows flow velocity through deflection cone, slat around the high speed impact eddy current foam dust-removing chamber on the wall, make whole hydrocyclone rotation, make simultaneously and produce negative pressure in its cavity, the tobacco juice mixed liquor just enters in the hydrocyclone cavity from the space between adjacent two curved surface triangle fins, be subjected to the effect of powerful eddy current to be stirred into foam, flue dust in the contained flue gas of former mixed liquor is caught by foam, and with foam solution flow into down and circulator, foam liquid drain on its sidewall is discharged into sedimentation basin again, and by the Purge gas behind the foamed filter, then the Purge gas discharge pipe on the circulator sidewall is discharged the mouth of pipe by the Purge gas on the furnace body wall and is discharged; Liquid in the sedimentation basin and dust are through precipitation, the dirt slag is got rid of by slag-drip opening, precipitated liquid and contained gas thereof the filter below being positioned at the horizontal semitight division board of sedimentation basin filters, Purge gas is discharged through circulator Purge gas discharge pipe by the Purge gas passing away that is provided with on this division board; And filtered fluid is discharged by the discharge of the decontaminating liquid on the furnace body wall mouth of pipe, recycles through dealing with liquid introducing treatment fluid playpipe after the additional chemical agent examination again.
Needs according to Purge gas and decontaminating liquid use can be provided with heat exchanger in circulator, make the Purge gas of discharge and liquid keep needed serviceability temperature.
The invention has the advantages that: ordinary circumstance can reach the ideal effect of udst separation gas by the two-stage dust removal installation:
First order dust removal installation: adopted tobacco juice mixing chamber and tobacco juice expanding chamber structure combining, made the tobacco juice that in the tobacco juice mixing chamber, mixes, by the expansion diffusion in expanding chamber, that the bulky grain flue dust more than the 50 μ m is separated;
Second level dust removal installation: in body of heater, be provided with and be positioned at the hydrocyclone that the flue gas expanding chamber has special construction, by the hollow deflection cone of this deduster and the powerful eddy current that synergy produced of eddy current foam dust-removing cell structure, to stir into foam through the mixing tobacco juice after the first order dedusting, by foamed filter effect udst separation gas.
As required, the present invention also can set up third level dust removal installation: filter is set on sedimentation basin, promptly below the horizontal semitight division board of sedimentation basin filter is set, liquid in the sedimentation basin and contained gas are carried out dust removal by filtration.
Because the present invention has structurally adopted the dust removal installation of combinations thereof, improved efficiency of dust collection greatly, test shows: for the nano level superfine dust of granularity below 0.2 μ m, its efficiency of dust collection is up to 99.95%.Thereby the dust removing effects of wet type hydrocyclone of the present invention is very good, and the gas that it is discharged, liquid not only can cycling and reutilizations, and Purge gas directly is discharged into also can not produce environment in the air pollutes.
The method that a kind of efficient removing flue dust or mining industry nano level superfine dust are provided of the present invention comprises the steps: in regular turn
The first step: provide temperature at the pending flue gas below 120 ℃;
Second step: pending flue gas is mixed with treatment fluid;
The 3rd step: 2.5-3.5 doubly carries out first order volumetric expansion dedusting with this mixeding liquid volume expansion;
The 4th step: the mixed liquor flow velocity after the dedusting is controlled at the 10-12 meter per second;
The 5th goes on foot: the mixed liquor of flow velocity 10-12 meter per second after the dedusting is carried out 600-1200 rev/min second level eddy current foamed filter dedusting;
The 6th step: the Purge gas after the dedusting is drawn;
The 7th step: the filtered fluid after the dedusting of eddy current foamed filter is precipitated;
The 8th step: precipitated liquid is carried out the dedusting of 200-300 purpose third level fine filtering;
The 9th step: draw Purge gas and scavenging solution after the 8th step dedusting standby respectively.As the realization of this method, can finish by wet nanometer grade vortex dust-removing device of the present invention.
Wherein: the first step, the pending flue gas below 120 ℃ is provided by venturi type flue dust gas input equipment;
In second step, fully mix in pending flue gas and the tobacco juice mixing chamber of treatment fluid in device;
In the 3rd step, mixeding liquid volume expansion 2.5-3.5 doubly finishes in the tobacco juice expanding chamber in device;
The 4th step by be positioned at the hydrocyclone that the tobacco juice expanding chamber is provided with in device, narrowed down the mixed liquor runner, the slack-off mixed liquor that expands can be raised speed to the 10-12 meter per second;
In the 5th step,, the mixed liquor of flow velocity 10-12 meter per second is carried out 600-1200 rev/min second level eddy current foamed filter dedusting by having the hydrocyclone that eddy current foam dust-removing chamber that hollow deflection cone and perisporium be made of slat is constituted;
In the 6th step,, discharge the mouth of pipe by the Purge gas discharge pipe on the circulator sidewall in the device via the Purge gas on the device body wall and draw the Purge gas after the dedusting;
In the 7th step,, be discharged into sedimentation basin by the foam liquid drain on the circulator sidewall in the device and precipitate the filtered fluid after the dedusting of eddy current foamed filter;
In the 8th step, the 200-300 order filter by being provided with below the horizontal semitight division board of sedimentation basin in the device carries out third level dust removal by filtration to liquid in the sedimentation basin and contained gas;
In the 9th step,, draw by the Purge gas passing away that is communicated with Purge gas discharge pipe on the circulator that on the horizontal semitight division board of this sedimentation basin, is provided with in the device respectively Purge gas and the scavenging solution after the 8th step dedusting; And scavenging solution is drawn standby by the decontaminating liquid discharge mouth of pipe on the device body wall.
Description of drawings
Fig. 1 is the main cutaway view of apparatus of the present invention
Fig. 2 is the hydrocyclone structural representation
Mark among the figure: 1 is body of heater, 2 is the tobacco juice mixing chamber at body of heater top, 3 is the tobacco juice expanding chamber, 4 is the treatment fluid injection mouth of pipe on the tobacco juice mixing chamber sidewall, 5 is the hollow deflection cone at hydrocyclone top, 6 is the eddy current foam dust-removing chamber as the hydrocyclone matrix, 7 is the circulator that is communicated with eddy current foam dust-removing chamber, 8 is the Purge gas discharge mouth of pipe on the furnace body wall, 9 is the Purge gas discharge pipe on the circulator sidewall, 10 is the horizontal semitight isolation seat board of circulator and sedimentation basin, 11 is the foam liquid drain on the circulator sidewall, 12 is that the Purge gas passing away on the seat board is isolated in horizontal semitight, and 13 is the decontaminating liquid discharge mouth of pipe on the furnace body wall, and 14 is the filter on the sedimentation basin, 15 is sedimentation basin, the 16 flue dust gas inlet pipe mouths for venturi type equipment are the gas approach of tobacco juice mixing chamber, and 17 is slag-drip opening, and 18 is the curved surface triangle fin in the slat.
The specific embodiment
A kind of wet nanometer grade vortex dust-removing device, its cylindrical furnace are stainless steel casing 1, and outer casing inner wall is resistance to acids and bases material coating, the high 160cm of body of heater, horizontal diameter 200cm; The gas approach of the tobacco juice mixing chamber 2 at body of heater top is connected with the venturi type equipment flue dust input mouth of pipe 16,2 one-tenth hollow frusto-conical of tobacco juice mixing chamber, its top mouthful diameter 24cm, cone bottom diameter 40cm, high 25cm, treatment fluid sprays the mouth of pipe 4 and is contained on this chamber locular wall; Being positioned at below the tobacco juice mixing chamber 2 is the cylindric tobacco juice expanding chamber 3 of hollow that is communicated with it, its column diameter 40cm, the high 25cm of post; Be contained in the hydrocyclone that is positioned at flue gas expanding chamber 3 in the body of heater, sidewall is made up of the eddy current foam dust-removing chamber 6 that slat constitutes by the hollow deflection cone 5 that is positioned at this dust remover roof point upward and around being contained in this deflection cone bottom, and the cone bottom diameter of this hollow deflection cone 5 is 20cm, bore high 18cm; Eddy current foam dust-removing chamber 6 is that hollow is cylindric, horizontal diameter 20cm, the high 20cm of post, be positioned at the slat of this outdoor its perisporium of composition, by around the vertical axis of hollow deflection cone 5, equidistantly arrange each other, a circle that top, blade face has following bending angle is similar to the leg-of-mutton fin of curved surface and formed; The frustum circulator 7 that is positioned at below the eddy current foam dust-removing chamber 6 and connects with this chamber disjunctor, its top diameter 20cm, high 25cm, end diameter 22cm is that the Breadth Maximum 160cm of this plate is isolated on the seat board 10 in the horizontal semitight that seat is contained in sedimentation basin 15; Below isolating seat board 10, this horizontal semitight is provided with the identical filter 14 of shape size; Purge gas discharge pipe 9 on circulator 7 sidewalls is discharged the mouth of pipe 8 with the Purge gas on the furnace body wall and is connected, and the Purge gas passing away 12 that sedimentation basin is isolated on the seat board 10 is communicated with the Purge gas discharge pipe 9 of circulator 7; Foam liquid drain 11 on circulator 7 sidewalls stretches to sedimentation basin 15; Decontaminating liquid also is housed on furnace body wall discharges the mouth of pipe 13, bottom of furnace body is provided with slag-drip opening 17.Constitute all components of wet type vortex dust-removing device of the present invention; except the curved surface triangle fin 18 of filter 14 and formation slat; remaining component all is a stainless steel part, and these assemblies all have the protective finish that prevents acid and alkali corrosion on the surface of contact flue gas, treatment fluid.The curved surface triangle fin 18 that constitutes slat then is to make with carbon fibre composite.Needs according to Purge gas and decontaminating liquid use can be provided with heat exchanger in circulator 7, make the Purge gas of discharge and liquid keep needed serviceability temperature.
The method of efficient removing flue dust of the present invention or mining industry nano level superfine dust comprises the steps: in regular turn
The first step: provide temperature at the pending flue gas below 120 ℃;
Second step: pending flue gas is mixed with treatment fluid;
The 3rd step: 2.5-3.5 doubly carries out first order volumetric expansion dedusting with this mixeding liquid volume expansion;
The 4th step: the mixed liquor flow velocity after the dedusting is controlled at the 10-12 meter per second;
The 5th goes on foot: the mixed liquor of flow velocity 10-12 meter per second after the dedusting is carried out 600-1200 rev/min second level eddy current foamed filter dedusting;
The 6th step: the Purge gas after the dedusting is drawn;
The 7th step: the filtered fluid after the dedusting of eddy current foamed filter is precipitated;
The 8th step: precipitated liquid is carried out the dedusting of 200-300 purpose third level fine filtering;
The 9th step: draw Purge gas and scavenging solution after the 8th step dedusting standby respectively.
As the realization of this method, can finish by wet nanometer grade vortex dust-removing device of the present invention.
Wherein: the first step, the pending flue gas below 120 ℃ is provided by the venturi type flue dust gas input equipment mouth of pipe 16;
In second step, fully mix in pending flue gas and the tobacco juice mixing chamber 2 of treatment fluid in device;
The 3rd step, mixeding liquid volume expansion 2.5-3.5 doubly, the tobacco juice in device expands and finishes in the Room 3;
The 4th step by be positioned at the hydrocyclone that tobacco juice expanding chamber 3 is provided with in device, narrowed down the mixed liquor runner, the slack-off mixed liquor that expands can be raised speed to the 10-12 meter per second;
In the 5th step,, the mixed liquor of flow velocity 10-12 meter per second is carried out 600-1200 rev/min second level eddy current foamed filter dedusting by having the hydrocyclone that eddy current foam dust-removing chamber 6 that hollow deflection cone 5 and perisporium be made of slat is constituted;
In the 6th step,, discharge the mouth of pipe 8 by the Purge gas discharge pipe 9 on circulator 7 sidewalls in the device via the Purge gas on the device body wall and draw the Purge gas after the dedusting;
In the 7th step,, be discharged into sedimentation basin 15 by the foam liquid drain 11 on circulator 7 sidewalls in the device and precipitate the filtered fluid after the dedusting of eddy current foamed filter;
In the 8th step, the 200-300 order filter 14 by being provided with below sedimentation basin 15 horizontal semitight division boards 10 in the device carries out third level dust removal by filtration to liquid in the sedimentation basin 15 and contained gas;
In the 9th step,, draw by the Purge gas passing away 12 that is communicated with Purge gas discharge pipe 9 on the circulator 7 that on these sedimentation basin 15 horizontal semitight division boards 10, is provided with in the device respectively Purge gas and the scavenging solution after the 8th step dedusting; And scavenging solution is drawn standby by the decontaminating liquid discharge mouth of pipe 13 of device.
Test shows: the nano level superfine dust of granularity below 0.2 μ m, its efficiency of dust collection is up to 99.95%.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100225903A CN100450579C (en) | 2006-12-22 | 2006-12-22 | Wet nanometer grade vortex dust-removing device and dust removing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100225903A CN100450579C (en) | 2006-12-22 | 2006-12-22 | Wet nanometer grade vortex dust-removing device and dust removing method |
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| Publication Number | Publication Date |
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| CN101007233A CN101007233A (en) | 2007-08-01 |
| CN100450579C true CN100450579C (en) | 2009-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100225903A CN100450579C (en) | 2006-12-22 | 2006-12-22 | Wet nanometer grade vortex dust-removing device and dust removing method |
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| CN109621584A (en) * | 2019-02-21 | 2019-04-16 | 昆山赛琦节能机电设备有限公司 | A kind of wet nanometer grade vortex dust-removing device and its dust removal method |
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| CN87200863U (en) * | 1987-01-26 | 1987-10-14 | 李松汉 | Wet dedusting and waste water disposal unit |
| US4833877A (en) * | 1986-09-02 | 1989-05-30 | Bergwerksverband Gmbh | Process for the reduction of pollutant emissions from power stations with combined gas/steam turbine processes with preceding coal gasification |
| CN1077907A (en) * | 1992-04-21 | 1993-11-03 | 塞荣机械工业公司 | Dusty gas forms the dust collect plant of eddy current flow flowing mode |
| CN1080566A (en) * | 1992-06-20 | 1994-01-12 | 冶金工业部安全环保研究院 | The cyclone dust collectors of static electrification-fabric filter |
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| CN2286646Y (en) * | 1997-02-03 | 1998-07-29 | 潘小军 | Wet high-efficiency smoke-purifying device |
| CN2717515Y (en) * | 2004-08-13 | 2005-08-17 | 内蒙古亚洁亚环保有限责任公司 | Wet-type cyclone desulfurizing dust collector |
| WO2005107925A1 (en) * | 2004-05-08 | 2005-11-17 | Qingbao Huang | A device for removing smoke dust of fuel oil |
| CN200984489Y (en) * | 2006-12-22 | 2007-12-05 | 董俊 | Wet-type nanometer-level transverse-current duster |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4833877A (en) * | 1986-09-02 | 1989-05-30 | Bergwerksverband Gmbh | Process for the reduction of pollutant emissions from power stations with combined gas/steam turbine processes with preceding coal gasification |
| CN87200863U (en) * | 1987-01-26 | 1987-10-14 | 李松汉 | Wet dedusting and waste water disposal unit |
| CN1077907A (en) * | 1992-04-21 | 1993-11-03 | 塞荣机械工业公司 | Dusty gas forms the dust collect plant of eddy current flow flowing mode |
| CN1080566A (en) * | 1992-06-20 | 1994-01-12 | 冶金工业部安全环保研究院 | The cyclone dust collectors of static electrification-fabric filter |
| CN2192389Y (en) * | 1994-05-14 | 1995-03-22 | 陈启松 | Whirling fluid type microporosity dust remover |
| CN2286646Y (en) * | 1997-02-03 | 1998-07-29 | 潘小军 | Wet high-efficiency smoke-purifying device |
| WO2005107925A1 (en) * | 2004-05-08 | 2005-11-17 | Qingbao Huang | A device for removing smoke dust of fuel oil |
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| CN101007233A (en) | 2007-08-01 |
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