CN100574849C - Injector for bag filter of dust collector - Google Patents
Injector for bag filter of dust collector Download PDFInfo
- Publication number
- CN100574849C CN100574849C CN200710146221A CN200710146221A CN100574849C CN 100574849 C CN100574849 C CN 100574849C CN 200710146221 A CN200710146221 A CN 200710146221A CN 200710146221 A CN200710146221 A CN 200710146221A CN 100574849 C CN100574849 C CN 100574849C
- Authority
- CN
- China
- Prior art keywords
- mentioned
- bag filter
- playpipe
- injector
- compressed gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/4281—Venturi's or systems showing a venturi effect
Abstract
The present invention relates to a kind of injector for bag filter of dust collector, it has, and the air that flow into hood inside is carried out a plurality of bag filters that control of dust is handled; The upside of above-mentioned bag filter is provided with at regular intervals, thereby spray playpipe from outside compressed and supplied gas, it is characterized in that, also comprise: have the hollow structure that is provided with suction object gas inflow entrance at an upper portion thereof, and connect main part in conjunction with above-mentioned playpipe in its side; And the top that is included in aforementioned body portion prolongs formation, and flow into the annular preparation thorax of the nozzle slender holes that oral-lateral forms to above-mentioned suction object gas, and be communicated with, and be provided with the circular bore of at least more than one Compressed Gas inflow entrance in a side of above-mentioned preparation thorax with above-mentioned playpipe; In the bottom of the playpipe that penetrates into aforementioned body portion one side, be formed with the injection nozzle that above-mentioned Compressed Gas can be sprayed downwards.
Description
Technical field
The present invention relates to a kind of injector for bag filter of dust collector, more specifically, relate to a kind of injector for bag filter of dust collector with following function.Promptly, supply with Compressed Gas by playpipe to the preparation thorax, then, in whole scope of main part inside, spray Compressed Gas by the nozzle slender holes again, because playpipe connects main part, by the injection nozzle that below the one side edge, playpipe bottom that connects, forms Compressed Gas is sprayed, thereby make the inhalation power multiplication that sucks object gas.
Background technology
Dust arrester is to be set at a large amount of factories that discharge of dust etc. to locate, the polluters such as dust that contain in the air and be in floating state are collected,, made it become clean air so that air is carried out purified treatment, then, again with its a kind of in the air cleaning unit that discharge the outside.
Dust arrester as mentioned above, generally all be contaminated air to be filtered by bag filter, polluter is filtered, then, more peace and quiet air is discharged to the outside, superposed injection nozzle sprays Compressed Gas to bag filter, thereby the collected polluter of bag filter is broken away from, like this, just can prevent the bag filter blockage phenomenon effectively, simultaneously, can also improve the efficient of purification.
Below, be described in detail with reference to the structure and the operation principle of accompanying drawing common dust arrester.
Fig. 1 is the schematic diagram that expression describes the structure and the operation principle of common dust arrester.
As can be seen from the figure, in inside according to bottom one side of the hood 210 of certain space setting be provided with contaminated air can be sucked be blown into mouthfuls 270, be provided with the outlet 260 that cleaned air passes can be discharged in the top of hood 210 side.
Handle in order to carry out control of dust to the contaminated air that sucks, be provided with a plurality of bag filters 240, be provided with the Venturi tube 250 that can make the Compressed Gas acceleration of ejecting on the top of bag filter 240 in hood 210 inside.
According to the certain playpipe 230 that can supply with Compressed Gas from Compressed Gas supply arrangement 220 that is arranged at intervals with, the side in playpipe 230 bottoms is provided with the injection nozzle 235 that Compressed Gas can be sprayed downwards at the upside of bag filter 240.
In addition, be provided with the rotary valve 280 that the polluter that gathers after breaking away from can be discharged to the outside in the bottom of hood 210.
Below, will the process of purifying contaminated air be described, by being blown into mouthful 270 contaminated airs that are drawn into hood 210 inside after filtering, discharge by outlet 260 through bag filter 240.
Contaminated air is after through filtration, there is the particle that does not have to break away from the polluter that falls in periphery at bag filter 240, in order to prevent that the particle because of this polluter from stopping up the phenomenon generation of bag filter 240, spray Compressed Gas by superposed injection nozzle 235, thereby the particle of polluter is broken away from.
The Compressed Gas that sprays is made its acceleration by Venturi tube 250, and supply to the inside of bag filter 240, then, the shock wave that high velocity jet produced along with Compressed Gas, bag filter 240 is shaken, thereby the particle of the polluter of bag filter 240 peripheries is broken away from, and accumulate to the bottom of hood 210.
The particle of the polluter that gathers is along with the rotation of rotary valve 280 is discharged to the outside.
But, because injection nozzle and playpipe form as one, thus can only be merely by 1 end injection Compressed Gas, therefore, exist its take off dirt power a little less than, can not solve the problem of the clogging of bag filter effectively.
In order to solve the existing the problems referred to above of original technology, having proposed a kind of fluid that utilizes can be attached to the Condar injector of lip-deep Coanda effect (Coanda effect) when flexure plane flows.
Fig. 2 is the bag filter of Condar injector is used in expression according to prior art the main organigram that takes off the dirt structure.
As shown in the figure, the Condar injector 300 according to prior art is made of main part 310 and circular bore 320 two parts.
In addition, preparation thorax 330 is formed with the Compressed Gas inflow entrance 335a that is connected with playpipe 230 relative to each other, 335b.
According to this structure, when supplying with Compressed Gas, make Compressed Gas pass through inflow entrance 335a by playpipe 230,335b is to preparation thorax 330 inner inflows.
When preparation thorax 330 inside reached capacity state because of the Compressed Gas that flows into, Compressed Gas will be by the inflow entrance 315 one side high velocity jet of nozzle slender holes 337 to the suction object gas under the guiding of guiding device 339.
The Compressed Gas that ejects will be supplied with downwards in the scope of whole inner peripheral surface along main part 310 according to Coanda effect, simultaneously, at the main part 310 inner down currents that form, like this, the ambient air that is positioned at main part 310 tops will be inhaled into main part 310.
Compressed Gas by main part 310 inside and ambient air are through it speeds up after the Venturi tube 250, and supply to bag filter 240 inside, simultaneously, down current is formed at the top at bag filter 240, like this, the ambient air between Condar injector 300 and bag filter 240 will be inhaled in the bag filter 240.
The Compressed Gas and the ambient air that supply to bag filter 240 inside as mentioned above shake bag filter 240, thereby break away from the particle that falls to accumulate in the polluter on bag filter 240 outer peripheral faces.
But, above-mentionedly can not solve the blockage problem of bag filter fully according to the Condar injector of prior art, have the problem of regular meeting's blockage phenomenon in the time of can producing bag filter.
Particularly, if the clogging of this bag filter takes place continually, shortened the service life of bag filter.Therefore, be starved of research and development a kind of can solution to this problem.
The technical task that invention will realize
The present invention researches and develops for addressing the above problem, the objective of the invention is to, a kind of injector for bag filter of dust collector is provided, it sprays Compressed Gas by the injection nozzle that forms on the playpipe of nozzle slender holes that penetrates into circular bore and main part, thereby the suction that sucks object gas is doubled, the dirt effect of taking off of bag filter is maximized.
Summary of the invention
To achieve these goals, according to injector for bag filter of dust collector of the present invention, it comprises: be used for the air that flow into hood inside is carried out a plurality of bag filters that control of dust is handled; Upside can spray at above-mentioned bag filter according to the certain intervals setting from the playpipe of outside compressed and supplied gas, it is characterized in that, comprise having the hollow structure that is formed with suction object gas inflow entrance on top, and connect the main part that combines with above-mentioned playpipe in the side; And the top that is included in aforementioned body portion prolongs formation, and be formed with the annular preparation thorax of nozzle slender holes to inflow entrance one side of above-mentioned suction object gas, be communicated with above-mentioned playpipe with a side, and form the circular bore of more than one Compressed Gas inflow entrance at least at above-mentioned preparation thorax; Bottom one side at the playpipe that connects aforementioned body portion is formed with the injection nozzle that above-mentioned Compressed Gas can be sprayed downwards.
In addition, above-mentioned preparation thorax has 2 Compressed Gas inflow entrances that form relative to each other.
Preferably, will engage with above-mentioned playpipe with the side that above-mentioned playpipe connects the main part of combination.
Here, above-mentioned circular bore is formed with to the setting of above-mentioned suction object gas inflow entrance lopsidedness, thus with the Compressed Gas in the above-mentioned circular bore to the side directed guiding device of above-mentioned suction object gas inflow entrance one.
Description of drawings
Fig. 1 represents schematic diagram that the structure of common dust arrester and operation principle are described.
Fig. 2 represents to have utilized according to prior art the main organigram that takes off the dirt structure of the bag filter of Condar injector.
Fig. 3 represents the main organigram that takes off the dirt structure that utilized the bag filter of injector for bag filter of dust collector according to of the present invention.
Fig. 4 represents the stereogram according to injector for bag filter of dust collector of the present invention.
Fig. 5 represents the polycrystalline substance stereogram according to injector for bag filter of dust collector of the present invention.
Detailed description of main elements
10: main part 15: suck the object gas inflow entrance
20: circular bore 21: the preparation thorax
23: guiding device 25a, 25b: Compressed Gas inflow entrance
27: nozzle slender holes 30: playpipe
33: injection nozzle 40: Venturi tube (Ventury)
50: bag filter 100: injector
The specific embodiment
Below, with reference to the accompanying drawings a preferred embodiment of the present invention is described in detail.
What Fig. 3 represented to use the bag filter that utilizes injector for bag filter of dust collector according to the present invention takes off the main organigram of dirt structure, and Fig. 4 and Fig. 5 represent to utilize according to the present invention the stereogram and the bottom surface structural perspective of injector for bag filter of dust collector.
As can be seen from the figure, injector for bag filter of dust collector 100 according to the present invention is made of main part 10 and circular bore 20 two parts.
In addition, preparation thorax 21 is formed with the Compressed Gas inflow entrance 25a that is communicated with playpipe 30 relative to each other, 26b.
Below, the operation principle when supplying with Compressed Gas is described in detail, when Compressed Gas was supplied with by playpipe 30, to the Compressed Gas inflow entrance 25a that is arranged on the preparation thorax 21,25b flowed into respectively for it.
When making the inside of preparation thorax 21, the Compressed Gas that flows into reaches capacity after the state, Compressed Gas G1 will be under the guiding of guiding device 23, carry out high velocity jet by nozzle slender holes 27 to the suction object gas inflow entrance 15 that is formed on main part 10 tops, simultaneously, under the effect of Coanda effect, supply with downwards in the whole inner peripheral surface scope of main part 10, thereby be positioned at the also high velocity jet Compressed Gas G3 downwards of injection nozzle 33 of bottom of the playpipe 30 of perforation.
At this moment, since Compressed Gas G1, the high velocity jet of G3, and under the influence of the stronger down current that sucks the formation of object gas inflow entrance 15 places, the ambient air G2 that is positioned at injector 100 tops will be inhaled into the inside of main part 10.
That is to say, the Compressed Gas G1 that nozzle slender holes 27 by preparation thorax 21 sprays, the ambient air G2 that the Compressed Gas G3 that sprays by injection nozzle 33 and the top of main part 10 suck together the inside by main part 10 to bag filter 50 internal feeds that are positioned at the below.
Compressed Gas and ambient air G1 by main part 10, G2, G3 is accelerated after by the Venturi tube 40 that is positioned at bag filter 50 tops, therefore, stronger down current will be formed at the top at bag filter 50, like this, the ambient air G4 between injector for bag filter of dust collector 100 and bag filter 50 will be inhaled into the inside of bag filter 50 together, thereby to the internal feed of bag filter 50.
By Compressed Gas and ambient air G1 to the internal feed of bag filter 50, G2, G3, the shock wave that G4 produced shake bag filter 50, thereby make bag filter 50 break away to fall the particle of the polluter of outer peripheral face.
Table 1 is illustrated in has 100m
3Utilize shown in Figure 2ly on the bag filter of the processing capacity of/min, dust arrester is driven the result of the test of measuring 6 gained in 8 hours according to the injector 300 of prior art with according to injector 100 of the present invention.
[table 1]
| The improvement project | Compare with existing bag filter |
| Compressed air consumption | Reduce 40%～50% |
| Burst length | Reduce 50% |
| Bag filter is provided with area | Reduce 60%～70% |
| Pressure differential in the bag filter | Reduce 50%～70% |
| The rate of filtration of bag filter | Increase by 140% |
| Bag filter take off dirt efficient | Increase by 150% |
Such as in the table 1 record, because of using according to injector for bag filter of dust collector 100 of the present invention, when having reduced the Compressed Gas consumption, that has improved bag filter 50 takes off dirt efficient, thereby the rate of filtration of bag filter 50 has improved 140%, therefore, proves that the performance of entire equipment has improved.
In addition, along with the raising of taking off dirt efficient of bag filter 50, also prolonged the service life of bag filter 50, and correspondingly, its maintenance expense also will reduce.
Beneficial effect
As mentioned above, the present invention has following good result, spray Compressed Gas by the injection nozzle that on the playpipe of nozzle slender holes that penetrates into circular bore and main part, forms, double so that suck the inhalation power of object gas, thereby that improves bag filter takes off dirt efficient, and can prolong the service life of bag filter.
In the above description, though be illustrated about the preferred embodiments of the present invention, the related work personnel can carry out various change and modification fully in not departing from feature of the present invention and scope.In addition, to the change of feature of the present invention and revise the scope that can not exceed appended claim.
Claims (4)
1, a kind of injector for bag filter of dust collector, it has, and the air that flow into hood inside is carried out a plurality of bag filters that control of dust is handled; The upside of above-mentioned bag filter is provided with at regular intervals, and sprays the playpipe from outside compressed and supplied gas, it is characterized in that, also comprises:
Have the hollow structure that is provided with suction object gas inflow entrance at an upper portion thereof, and connect main part in conjunction with above-mentioned playpipe in its side; And
The top that is included in aforementioned body portion prolongs and forms, and flow into the annular preparation thorax of the nozzle slender holes that oral-lateral forms to above-mentioned suction object gas, and be communicated with, and be provided with the circular bore of at least more than one Compressed Gas inflow entrance in a side of above-mentioned preparation thorax with above-mentioned playpipe;
In the bottom of the playpipe that penetrates into aforementioned body portion one side, be formed with the injection nozzle that above-mentioned Compressed Gas can be sprayed downwards.
2, injector for bag filter of dust collector as claimed in claim 1 is characterized in that,
Have 2 Compressed Gas inflow entrances relative to each other on the above-mentioned preparation thorax.
3, injector for bag filter of dust collector as claimed in claim 1 is characterized in that,
The side that connects the main part of combination with above-mentioned playpipe engages with above-mentioned playpipe.
4, injector for bag filter of dust collector as claimed in claim 1 is characterized in that,
Above-mentioned circular bore is formed with to above-mentioned suction object gas inflow entrance lopsidedness and forms, thus with the compressed air in the above-mentioned circular bore to the side directed guiding device of above-mentioned suction object gas inflow entrance one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070013203 | 2007-02-08 | ||
| KR1020070013203A KR100718708B1 (en) | 2007-02-08 | 2007-02-08 | Injector for bag filter of dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101239343A CN101239343A (en) | 2008-08-13 |
| CN100574849C true CN100574849C (en) | 2009-12-30 |
Family
ID=38270841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710146221A Expired - Fee Related CN100574849C (en) | 2007-02-08 | 2007-08-28 | Injector for bag filter of dust collector |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100718708B1 (en) |
| CN (1) | CN100574849C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811790A (en) * | 2010-03-24 | 2012-12-05 | 韩国能量技术研究院 | Pulse air injection nozzle with dual columnar slits and bag filter dust removal system using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100882318B1 (en) * | 2007-09-03 | 2009-02-11 | 김기호 | Injector for filter of dust collector and dust collector using the same |
| KR100957030B1 (en) * | 2008-03-27 | 2010-05-13 | 한국에너지기술연구원 | Filter Cleaning Air Injection Apparatus for Pulse-jet type Bag Filters |
| KR100957029B1 (en) * | 2008-03-27 | 2010-05-13 | 한국에너지기술연구원 | Spherical type Air Injection Nozzle and Injection Apparatus for Pulse-jet type Filter Cleaning System of Bag Filters |
| CN101808710B (en) * | 2008-03-27 | 2013-05-08 | 韩国energy技术研究院 | Circular type air injection nozzles having two circular slits and filter cleaning system using them |
| KR100928591B1 (en) * | 2009-03-04 | 2009-11-24 | (주)이진엔지니어링 | Apparatus for jetting compressed air |
| CN101985079A (en) * | 2010-08-25 | 2011-03-16 | 杭州山立净化设备有限公司 | High-pressure self-cleaning air filter |
| KR101139217B1 (en) * | 2011-10-06 | 2012-05-15 | (주)안성정기 | Simultaneous complex treatment apparatus for advanced treatment of mixed exhaust gas |
| CN102908840B (en) * | 2012-09-29 | 2014-05-21 | 中国石油大学(北京) | Pulse backflush deashing device for filter |
| KR200472211Y1 (en) | 2012-12-13 | 2014-04-10 | 조광섭 | Apparatus for mass compressed air injection |
| KR101471809B1 (en) * | 2014-07-25 | 2014-12-10 | 조광섭 | Bag filter cleaning system for dust collector having two control valves and compressed air pipes separated from one another |
| KR101643574B1 (en) | 2014-11-04 | 2016-07-28 | 한서대학교 산학협력단 | Jet nozzle for bagfilter cleaning |
| KR101672730B1 (en) * | 2014-12-22 | 2016-11-07 | 한국기계연구원 | Multiplex Coanda nozzle |
| KR101673525B1 (en) * | 2015-02-04 | 2016-11-22 | 김희선 | Hybrid injector for bag filters |
| KR101681761B1 (en) * | 2016-02-03 | 2016-12-01 | 김희선 | Hybrid injector for bag filters |
| CN106144679A (en) * | 2016-08-23 | 2016-11-23 | 安徽泽加业粉体工程有限公司 | A kind of bag bag discharging dust removal device |
| CN112604404B (en) * | 2020-12-18 | 2022-04-05 | 盐城诚达环保工程有限公司 | Energy-saving safe pulse bag-type dust collector |
| CN112568216A (en) * | 2020-12-28 | 2021-03-30 | 上海交通大学重庆研究院 | Electromagnetic type shock wave drives bird big gun and bird repellent device |
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| US4645520A (en) * | 1984-07-20 | 1987-02-24 | Huettlin Herbert | Filter assembly for dust removal from gases, especially in fluidized bed apparatus |
| CN1185999A (en) * | 1996-11-12 | 1998-07-01 | 动力炉·核燃料开发事业团 | Cyclone dust collector |
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| JP2004351323A (en) * | 2003-05-29 | 2004-12-16 | Sumitomo Heavy Ind Ltd | Cleaning control process for bag type dust collecting apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19849639C1 (en) | 1998-10-28 | 2000-02-10 | Intensiv Filter Gmbh | Airfoil ejector for backwashed filter dust |
| KR200321528Y1 (en) | 2003-04-28 | 2003-07-28 | 우리엔텍(주) | Ejecter for bag-filter of dust collector |
| KR200342510Y1 (en) | 2003-11-07 | 2004-02-21 | 대하환경보전 주식회사 | A dust collector with adapter for connecting injection pipe |
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2007
- 2007-02-08 KR KR1020070013203A patent/KR100718708B1/en not_active IP Right Cessation
- 2007-08-28 CN CN200710146221A patent/CN100574849C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4356010A (en) * | 1980-02-07 | 1982-10-26 | Intensity-Filter Gmbh & Co. Kg | Filter apparatus having filter elements and reverse-flow cleaning means |
| US4645520A (en) * | 1984-07-20 | 1987-02-24 | Huettlin Herbert | Filter assembly for dust removal from gases, especially in fluidized bed apparatus |
| CN1185999A (en) * | 1996-11-12 | 1998-07-01 | 动力炉·核燃料开发事业团 | Cyclone dust collector |
| CN1367034A (en) * | 2000-11-10 | 2002-09-04 | 曹吉功 | Air cleaner dust-removing machine |
| KR20040045981A (en) * | 2002-11-26 | 2004-06-05 | 엠에이티 주식회사 | Filter bag assembly for gas scrubber and gas scrubber having the same |
| JP2004351323A (en) * | 2003-05-29 | 2004-12-16 | Sumitomo Heavy Ind Ltd | Cleaning control process for bag type dust collecting apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102811790A (en) * | 2010-03-24 | 2012-12-05 | 韩国能量技术研究院 | Pulse air injection nozzle with dual columnar slits and bag filter dust removal system using same |
| CN102811790B (en) * | 2010-03-24 | 2014-10-15 | 韩国能量技术研究院 | Pulse air injection nozzle with dual columnar slits and bag filter dust removal system using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101239343A (en) | 2008-08-13 |
| KR100718708B1 (en) | 2007-05-15 |
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