CN101239343A - Injector for bag filter of dust collector - Google Patents

Injector for bag filter of dust collector Download PDF

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Publication number
CN101239343A
CN101239343A CNA200710146221XA CN200710146221A CN101239343A CN 101239343 A CN101239343 A CN 101239343A CN A200710146221X A CNA200710146221X A CN A200710146221XA CN 200710146221 A CN200710146221 A CN 200710146221A CN 101239343 A CN101239343 A CN 101239343A
Authority
CN
China
Prior art keywords
bag filter
mentioned
injector
playpipe
main
Prior art date
Application number
CNA200710146221XA
Other languages
Chinese (zh)
Other versions
CN100574849C (en
Inventor
李正元
Original Assignee
(株)安城精机
李正元
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to KR1020070013203A priority Critical patent/KR100718708B1/en
Priority to KR1020070013203 priority
Application filed by (株)安城精机, 李正元 filed Critical (株)安城精机
Publication of CN101239343A publication Critical patent/CN101239343A/en
Application granted granted Critical
Publication of CN100574849C publication Critical patent/CN100574849C/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023Pockets filters, i.e. multiple bag filters mounted on a common frame
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • B01D46/4281Venturi's or systems showing a venturi effect

Abstract

The present invention provides an ejector for a bladder type dust filter, having multiple bladder type dust filters of processing dust collecting to the air flowing in the hood inner; the upper side of the bladder type dust filter is arranged in a certain interval, thereby injecting an injection pipe of the compressed gas provided from the exterior, characterized in that, the injector further includes: a hollow structure having an inhaled object gas filler mounted on the upper, and a main part run-through combining the injection pipe on the side; and a ring preparation canal of nozzle long pore forming protractedly on the upper of the main part, and forming on the influx side of the absorbing object air, and connecting with the injecting pipe, and at least one ring canal of compressing the air influx is provided on one side of the preparation canal; an injecting nozzle formed on the lower side of the injecting pipe penetrating to the main part, capable of processing injection of the compression air downwards.

Description

Injector for bag filter of dust collector
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, bottom one side of the hood (210) that is provided with according to certain space in inside is provided be blown into mouthful (270) that contaminated air can be sucked, and is provided with the outlet (260) that cleaned air passes can be discharged in the top of hood (a 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) bottom 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, be drawn into the inner contaminated air of hood (210) after filtering by being blown into mouthful (270) through bag filter (240), discharge by outlet (260).
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) periphery 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.
Main part (310) is a hollow structure, and it has the inflow entrance (315) that sucks object gas.
Circular bore (320) is arranged on the top of main part (310) by prolongation annular preparation thorax (330) constitutes, upward be formed with nozzle slender holes (337) along guiding device (339) at preparation thorax (330), its guiding device (339) is arranged to inflow entrance (315) lopsidedness that sucks object gas.
In addition, preparation thorax (330) be formed with relative to each other the Compressed Gas inflow entrance that is connected with playpipe (230) (335a, 335b).
According to this structure, when supplying with Compressed Gas by playpipe (230), (335a is 335b) to the inner inflow of preparation thorax (330) to make Compressed Gas pass through inflow entrance.
When the inner Compressed Gas because of inflow of preparation thorax (330) reached capacity state, Compressed Gas will be by inflow entrance (315) the 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 inner down current that forms of main part (310), like this, the ambient air that is positioned at main part (310) top will be inhaled into main part (310).
It speeds up afterwards through Venturi tube (250) by the inner Compressed Gas of main part (310) and ambient air, and supply to bag filter (240) inside, simultaneously, down current is formed at the top at bag filter (240), like this, the ambient air that is positioned between Condar injector (300) and the bag filter (240) will be inhaled into bag filter (240).
Supply to bag filter (240) inner Compressed Gas and ambient air as mentioned above bag filter (240) is shaken, thereby break away from the particle that falls to accumulate in the polluter on bag filter (240) outer peripheral face.
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 inlet 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, constitute by main part (10) and circular bore (20) two parts according to injector for bag filter of dust collector of the present invention (100).
Main part (10) is for being formed with the hollow structure that sucks object gas inflow entrance (15) at an upper portion thereof, its side connects with playpipe (30) and combines, along bottom one side of the playpipe that penetrates into main part (10) (30), be formed with the injection nozzle (33) that sprays Compressed Gas downwards.
Circular bore (20) prolongs the annular that forms by the top at main part (10) and prepares thorax (21) formation, goes up along being formed with nozzle slender holes (27) to the guiding device (23) that sucks the setting of object gas inflow entrance (15) lopsidedness at preparation thorax (21).
In addition, preparation thorax (21) be formed with relative to each other the Compressed Gas inflow entrance that is communicated with playpipe (30) (25a, 26b).
Below, the operation principle when supplying with Compressed Gas is described in detail, when Compressed Gas was supplied with by playpipe (30), (25a 25b) flowed into to being arranged on Compressed Gas inflow entrance on the preparation thorax (21) 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) top, 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, (under the influence of the stronger down current that suction object gas inflow entrance (15) is located to form, the ambient air (G2) that is positioned at injector (100) top will be inhaled into the inside of main part (10) for G1, high velocity jet G3) owing to Compressed Gas.
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 be bag filter (50) internal feed of inside below being positioned at by main part (10) together.
Compressed Gas and ambient air (G1 by main part (10), G2, G3) be accelerated afterwards by the Venturi tube (40) that is positioned at bag filter (50) top, therefore, stronger down current will be formed at the top at bag filter (50), like this, be positioned at the inside that ambient air (G4) between injector for bag filter of dust collector (100) and the bag filter (50) will be inhaled into bag filter (50) together, thereby to the internal feed of bag filter (50).
By to the Compressed Gas of the internal feed of bag filter (50) and ambient air (G1, G2, G3, G4) shock wave that is produced shakes bag filter (50), thereby makes bag filter (50) break away to fall the particle of the polluter of outer peripheral face.
Table 1 is illustrated in and utilizes the injector according to prior art shown in Figure 2 (300) on the bag filter of the processing capacity with 100m3/min and according to injector of the present invention (100), dust arrester is driven the result of the test of measuring 6 gained in 8 hours.
[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 of the present invention (100), 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, the performance that proves 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, according to injector for bag filter of dust collector of the present invention, 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 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 inlet 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.
CN200710146221A 2007-02-08 2007-08-28 Injector for bag filter of dust collector CN100574849C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020070013203A KR100718708B1 (en) 2007-02-08 2007-02-08 Injector for bag filter of dust collector
KR1020070013203 2007-02-08

Publications (2)

Publication Number Publication Date
CN101239343A true CN101239343A (en) 2008-08-13
CN100574849C CN100574849C (en) 2009-12-30

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CN (1) CN100574849C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
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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
CN102413946A (en) * 2009-03-04 2012-04-11 二津化工机械有限公司 Apparatus for jetting compressed air, and method for manufacturing same
CN102908840A (en) * 2012-09-29 2013-02-06 中国石油大学(北京) Pulse backflush deashing device for filter
CN103028299A (en) * 2011-10-06 2013-04-10 安城精机株式会社 Simultaneous complex treatment apparatus for advanced treatment of mixed exhaust gas

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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
WO2009119925A1 (en) * 2008-03-27 2009-10-01 Korea Institute Of Energy Research Circular type air injection nozzles having two circular slits and filter cleaning system using them
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
WO2011118862A1 (en) * 2010-03-24 2011-09-29 한국에너지기술연구원 Pulse air injection nozzle with dual columnar slits and bag filter dust removal system using same
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

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DE3004453A1 (en) * 1980-02-07 1981-08-13 Intensiv Filter Gmbh TWO-STAGE INJECTOR FOR THE EXHAUST GAS CLEANING OF DUST FILTERS
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KR200321528Y1 (en) 2003-04-28 2003-07-28 우리엔텍(주) Ejecter for bag-filter of dust collector
JP4118744B2 (en) * 2003-05-29 2008-07-16 住友重機械工業株式会社 Bag type dust collector cleaning control method
KR200342510Y1 (en) 2003-11-07 2004-02-21 대하환경보전 주식회사 A dust collector with adapter for connecting injection pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102413946A (en) * 2009-03-04 2012-04-11 二津化工机械有限公司 Apparatus for jetting compressed air, and method for manufacturing same
CN102413946B (en) * 2009-03-04 2014-07-30 二津化工机械有限公司 Apparatus for jetting compressed air, and method for manufacturing same
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
CN103028299A (en) * 2011-10-06 2013-04-10 安城精机株式会社 Simultaneous complex treatment apparatus for advanced treatment of mixed exhaust gas
CN102908840A (en) * 2012-09-29 2013-02-06 中国石油大学(北京) Pulse backflush deashing device for filter
CN102908840B (en) * 2012-09-29 2014-05-21 中国石油大学(北京) Pulse backflush deashing device for filter

Also Published As

Publication number Publication date
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