CN101301553A - Method for cleaning superfine powder dust of bag-type dust remover and device thereof - Google Patents

Method for cleaning superfine powder dust of bag-type dust remover and device thereof Download PDF

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Publication number
CN101301553A
CN101301553A CNA2008101243077A CN200810124307A CN101301553A CN 101301553 A CN101301553 A CN 101301553A CN A2008101243077 A CNA2008101243077 A CN A2008101243077A CN 200810124307 A CN200810124307 A CN 200810124307A CN 101301553 A CN101301553 A CN 101301553A
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CN
China
Prior art keywords
winding
venturi tube
mouth
bag
deashing
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.)
Pending
Application number
CNA2008101243077A
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Chinese (zh)
Inventor
王民玉
戴朗才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AUXILARY VALVES Manufacturing Co Ltd YUDA POWER STATION JIANGSU
Original Assignee
AUXILARY VALVES Manufacturing Co Ltd YUDA POWER STATION JIANGSU
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
Application filed by AUXILARY VALVES Manufacturing Co Ltd YUDA POWER STATION JIANGSU filed Critical AUXILARY VALVES Manufacturing Co Ltd YUDA POWER STATION JIANGSU
Priority to CNA2008101243077A priority Critical patent/CN101301553A/en
Publication of CN101301553A publication Critical patent/CN101301553A/en
Pending legal-status Critical Current

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Abstract

A superfine dust cleaning method of a bag type dust collector includes forming the first stage induced wind at the induced hole on the outer spray nozzle, forming the second stage induced wind between the outer spray nozzle and the venturi, forming the third stage induced wind between the venturi and the top hole of a bag cage, the third stage induced wind cleaning dust of the filtering bag at the side of the venture, removing blind area of dust. The superfine dust cleaner of the bag type dust collector contains an electromagnetic impulse valve, a blowing pipe, a blowing nozzle, a gas storage bag, a PLC control system and a venturi placed in the bag cage, the top of the venturi is fixed on the top of the bag cage by a support, the venturi is suspended at the top of the bag cage, the blowing nozzle is mounted on the blowing tube corresponding to the middle of the venturi, the blowing nozzle is composed of the inner blowing nozzle and the outer blowing nozzle.The outer blowing nozzle has several induced holes. The present invention has advantages of small resistance to dust cleaning, low pressure of dust cleaning,and good effect of dust cleaning, and convenient maintenance.

Description

The ultrafine dust ash removal method and the device thereof of sack cleaner
Technical field:
The present invention relates to sack cleaner, particularly the ultrafine dust ash removal method and the device thereof of sack cleaner.
Background technology:
Along with the compulsory execution of national prevention and control of air pollution discharge standard "≤50mg/nm3 ", sack cleaner is widely used and accepts, and the gesture that replaces high-voltage electrostatic dust separator is arranged.Deashing device is one of sack cleaner critical component.The ultrafine dust deashing device of existing sack cleaner, as high pressure Wen pulse jetting deashing device, contain compact electromagnetic pulse valve, winding-up pipe, winding-up mouth, gas storage bag, PLC control system and Venturi tube, Venturi tube places in bag cage, and the suitable for reading of Venturi tube is welded at bag cage mouth place.Each filter chamber of sack cleaner is furnished with a plurality of electromagnetic impulse valves, electromagnetic impulse valve is generally 1/2 " 3 ", each electromagnetic impulse valve control one row's filter bag, the winding-up mouth is installed in the top of filter bag center, makes its energy centering filter bag center winding-up, improve cleaning efficiency, deashing pressure is 450kpa---600kpa, owing to adopted the high pressure Wen jet current principle of jetting, so air consumption is low, the air supply system investment is little, has reduced the deduster cost.But owing to a bag cage mouth that Venturi tube is welded, the gas channel that causes sack is the minimum diameter of Venturi tube by the reduced of filter bag, cause equipment resistance to increase, reach 800-1800pa, increased the blower fan kinetic equation loss, simultaneously, between the filter bag that the side and the 300mm-500mm of Venturi tube grow, since gases at high pressure blow less than, formed the dead band of deashing, the dust on the filter bag does not get off clearly, thereby reduced the filter area of filter bag, deashing pressure height in addition, high pressure draught is serious to washing away of filter bag, has shortened the service life of filter bag.
Summary of the invention:
The object of the present invention is to provide the ultrafine dust ash removal method and the device thereof of the sack cleaner that a kind of deashing resistance is little, ash-removal effect is good.
Solution of the present invention: the ultrafine dust ash removal method of sack cleaner, adopt three grades of induced air winding-ups, remove the dead band of deashing, after electromagnetic impulse valve obtains the deashing instruction of PLC control system, the ejection high velocity air, high velocity air enters inner nozzle by the winding-up pipe to carry out spraying behind distribution of air flow and the water conservancy diversion, form first order induced air through the hole of inducing on the outer nozzle, first order induced air is once more through behind the outer nozzle water conservancy diversion and spray into Venturi tube, between outer nozzle and Venturi tube, form second level induced air, after air-flow is gone out Venturi tube, form third level induced air between Venturi tube and bag cage are suitable for reading, the dust on the filter bag of third level induced air handle and Venturi tube side is removed.
The ultrafine dust deashing device of sack cleaner, contain electromagnetic impulse valve, winding-up pipe, winding-up mouth, gas storage bag, PLC control system and Venturi tube, Venturi tube places in bag cage, the suitable for reading of Venturi tube is fixed on bag cage place suitable for reading by support, it is suitable for reading that Venturi tube is suspended in bag cage, and the winding-up mouth is installed on the winding-up pipe corresponding with the Venturi tube medium position.
The winding-up mouth is made up of interior winding-up mouth and outer winding-up mouth.
In the outer winding-up some holes of inducing are arranged.
Distance between the suitable for reading and bag cage of Venturi tube is suitable for reading is 50-80mm.
Distance between the end opening of the suitable for reading and outer winding-up mouth of Venturi tube is 100-150mm.
The end opening of interior winding-up mouth hangs down 30-50mm than the end opening of outer winding-up mouth.
The 2-3 of the caliber that outer caliber of jetting mouth is interior winding-up mouth doubly.
Deashing resistance of the present invention is little, and deashing pressure is low, and ash-removal effect is good, and uses easy to maintenance.
The specific embodiment:
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the I portion enlarged drawing of the embodiment of the invention.
Among the figure: 1----electromagnetic impulse valve, 2----gas storage bag, the 3---pipe of jetting, winding-up mouth in the 4----Venturi tube, 5----, the 6----mouth of jetting outward, the 7----support, 8----bag cage, 9----induces the hole, the 10----filter bag.
Contain electromagnetic impulse valve 1, winding-up pipe 3, winding-up mouth, gas storage bag 2, PLC control system and Venturi tube 4, electromagnetic impulse valve 1 model is 3/2 " 3 ", and a plurality of electromagnetic impulse valves 1 are joined by each filter chamber, each electromagnetic impulse valve 1 control one row's filter bag 10.Venturi tube 4 places in bag cage 8, the suitable for reading of Venturi tube 4 is fixed on bag cage 8 places suitable for reading by support 7, it is suitable for reading that Venturi tube 4 is suspended in bag cage 8, enclosure space between the filter bag of the side of former Venturi tube and 300mm-500mm length has become us and has opened the space, between Venturi tube 4 and bag cage 8 are suitable for reading, formed gas channel, increased circulation area, solved the problem of filter bag 10 deashing difficulties of the side of Venturi tube 4, guaranteed filter area, avoided increasing because of setting up the resistance that Venturi tube 4 brings, make equipment resistance reduce to 250pa-1200pa, and introduce third level induced air, ash-removal effect has been improved in the dead band of having removed deashing, correspondingly, also increased the filter area of filter bag 10.The winding-up mouth by original single winding-up mouth change into by interior winding-up mouth 5 and outer winding-up mouth 6 form in, outer double-deck winding-up mouth, interior winding-up mouth 5 and outer winding-up mouth 6 are installed on the winding-up pipe 3 corresponding with Venturi tube 4 medium positions, jet in the center that interior winding-up mouth 5 and outer winding-up mouth 6 face toward filter bag, improved cleaning efficiency, jetting outside has 4 to induce hole 9 on the mouth 6, induce hole 9 to introduce first order induced air, jet outside and introduce second level induced air between mouth 6 and the support 7, add the third level induced air of between the suitable for reading of Venturi tube 4 and bag cage 8 are suitable for reading, introducing, just make original one-level induced air become three grades of induced airs, increase deashing tolerance and deashing length, solved the long bag more than 6 meters, have the ultrafine dust of electrostatic charge and with a slight problem of sticking with paste bag deashing difficulty.Distance between Venturi tube 4 suitable for reading and bag cage 8 are suitable for reading is 60mm, distance between the end opening of the suitable for reading and outer winding-up mouth 6 of Venturi tube 4 is 120mm, in the end opening of winding-up mouth 5 than the low 40mm of end opening of outer winding-up mouth 6, the caliber of the mouth 6 of jetting outward is 2.5 times of caliber of interior winding-up mouth 5.Present embodiment adopts the middle pressure winding-up jet current principle of 200kpa---400kpa, though air consumption slightly increases than high pressure Wen pulse spraying equipment, the deashing ability has strengthened, and has reduced high pressure draught to the washing away of filter bag, and has prolonged the service life of filter bag 10.
When carrying out the deashing operation, after electromagnetic impulse valve 1 obtains the deashing instruction of PLC control system, the ejection high velocity air, high velocity air enters inner nozzle 5 by winding-up pipe 3 to carry out spraying behind distribution of air flow and the water conservancy diversion, form first order induced air through the hole 9 of inducing on the outer nozzle 6, first order induced air is once more through behind outer nozzle 6 water conservancy diversion and spray into Venturi tube 4, between outer nozzle 6 and Venturi tube 4, form second level induced air, after air-flow is gone out Venturi tube 4, form third level induced air between Venturi tube 4 and bag cage 8 are suitable for reading, the dust on the filter bag 10 of third level induced air handle and Venturi tube 4 sides is removed.

Claims (8)

1, the ultrafine dust ash removal method of sack cleaner, it is characterized in that adopting three grades of induced air winding-ups, remove the dead band of deashing, after electromagnetic impulse valve obtains the deashing instruction of PLC control system, the ejection high velocity air, high velocity air enters inner nozzle by the winding-up pipe to carry out spraying behind distribution of air flow and the water conservancy diversion, form first order induced air through the hole of inducing on the outer nozzle, first order induced air is once more through behind the outer nozzle water conservancy diversion and spray into Venturi tube, between outer nozzle and Venturi tube, form second level induced air, after air-flow is gone out Venturi tube, form third level induced air between Venturi tube and bag cage are suitable for reading, the dust on the filter bag of third level induced air handle and Venturi tube side is removed.
2, the ultrafine dust deashing device of sack cleaner, contain electromagnetic impulse valve, winding-up pipe, winding-up mouth, gas storage bag, PLC control system and Venturi tube, Venturi tube places in bag cage, the winding-up mouth is installed on the winding-up pipe corresponding with the Venturi tube medium position, it is characterized in that the suitable for reading of Venturi tube is fixed on bag cage place suitable for reading by support, it is suitable for reading that Venturi tube is suspended in bag cage.
3, the ultrafine dust deashing device of sack cleaner according to claim 2, the mouth that it is characterized in that jetting is made up of interior winding-up mouth and outer winding-up mouth.
4, the ultrafine dust deashing device of sack cleaner according to claim 3 is characterized in that in the outer winding-up some holes of inducing being arranged.
5, the ultrafine dust deashing device of sack cleaner according to claim 4 is characterized in that the suitable for reading of Venturi tube and the distance of bag cage between suitable for reading are 50-80mm.
6, the ultrafine dust deashing device of sack cleaner according to claim 5 is characterized in that the distance between the end opening of the suitable for reading of Venturi tube and outer winding-up mouth is 100-150mm.
7, the ultrafine dust deashing device of sack cleaner according to claim 6, the end opening of winding-up mouth is than the low 30-50mm of end opening of outer winding-up mouth in it is characterized in that.
8, the ultrafine dust deashing device of sack cleaner according to claim 7, the caliber that it is characterized in that outer winding-up mouth be interior winding-up mouth caliber 2-3 doubly.
CNA2008101243077A 2008-06-24 2008-06-24 Method for cleaning superfine powder dust of bag-type dust remover and device thereof Pending CN101301553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008101243077A CN101301553A (en) 2008-06-24 2008-06-24 Method for cleaning superfine powder dust of bag-type dust remover and device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008101243077A CN101301553A (en) 2008-06-24 2008-06-24 Method for cleaning superfine powder dust of bag-type dust remover and device thereof

Publications (1)

Publication Number Publication Date
CN101301553A true CN101301553A (en) 2008-11-12

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101810977A (en) * 2010-04-27 2010-08-25 东华大学 Filter-bag protective device for injecting pulse air flow of bag-type dust collector
CN102921257A (en) * 2011-08-10 2013-02-13 李忠重 Venturi nozzle and filter structure mounted with same for dust collection device
CN103566669A (en) * 2013-11-06 2014-02-12 浙江富士特集团有限公司 Bag type dust collector for producing silicon tetrachloride by direct method
CN103570025A (en) * 2013-11-06 2014-02-12 浙江富士特集团有限公司 Silicon powder recycling device for producing silicon tetrachloride through direct method
CN105169837A (en) * 2015-10-08 2015-12-23 东华大学 Device for recovering filtering function of bag opening of filtering bag of pulse-jet bag filter
CN110743858A (en) * 2019-10-30 2020-02-04 葛军 Dustproof jetting valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101810977A (en) * 2010-04-27 2010-08-25 东华大学 Filter-bag protective device for injecting pulse air flow of bag-type dust collector
CN101810977B (en) * 2010-04-27 2012-05-23 东华大学 Filter-bag protective device for injecting pulse air flow of bag-type dust collector
CN102921257A (en) * 2011-08-10 2013-02-13 李忠重 Venturi nozzle and filter structure mounted with same for dust collection device
CN103566669A (en) * 2013-11-06 2014-02-12 浙江富士特集团有限公司 Bag type dust collector for producing silicon tetrachloride by direct method
CN103570025A (en) * 2013-11-06 2014-02-12 浙江富士特集团有限公司 Silicon powder recycling device for producing silicon tetrachloride through direct method
CN103570025B (en) * 2013-11-06 2016-01-13 浙江富士特集团有限公司 A kind of direct method produces the silica powder recovering device of silicon tetrachloride
CN105169837A (en) * 2015-10-08 2015-12-23 东华大学 Device for recovering filtering function of bag opening of filtering bag of pulse-jet bag filter
CN110743858A (en) * 2019-10-30 2020-02-04 葛军 Dustproof jetting valve

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Application publication date: 20081112