CN109260837A - A kind of bag filter - Google Patents

A kind of bag filter Download PDF

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Publication number
CN109260837A
CN109260837A CN201811304701.9A CN201811304701A CN109260837A CN 109260837 A CN109260837 A CN 109260837A CN 201811304701 A CN201811304701 A CN 201811304701A CN 109260837 A CN109260837 A CN 109260837A
Authority
CN
China
Prior art keywords
air
dust
bag
valve block
cloth
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.)
Withdrawn
Application number
CN201811304701.9A
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Chinese (zh)
Inventor
何仕勇
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.)
LIXIAN JINHUI GYPSUM PRODUCTS CO Ltd
Original Assignee
LIXIAN JINHUI GYPSUM PRODUCTS CO Ltd
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 LIXIAN JINHUI GYPSUM PRODUCTS CO Ltd filed Critical LIXIAN JINHUI GYPSUM PRODUCTS CO Ltd
Priority to CN201811304701.9A priority Critical patent/CN109260837A/en
Publication of CN109260837A publication Critical patent/CN109260837A/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters 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 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
    • B01D46/04Cleaning filters

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

A kind of bag filter, comprising: air hose, air inlet threeway valve block, aspiration channel, air blower, air blower discharge pipe, outlet air threeway valve block, discharge pipe, exhaust column, anti-blowpipe, ipper air chamber, cloth bag inner frame, dust-removal cloth-bag, outer case of dust remover, dirt air hose, lower air chamber, relay valve, blowback branch pipe;It is characterized in that: deduster is equipped with ipper air chamber and lower air chamber, deduster exhaust column connects with air inlet threeway valve block room blast pipe, and when deduster work, air inlet threeway valve block closes air hose, and fan induced draught pipe is opened;Dust-removal cloth-bag is installed, there is skeleton in inside, is connected in dirt air hose and workshop room in lower air chamber;Vertebra shape bucket has a relay valve ash discharge, and when reverse gas cleaning, outlet air threeway valve block opens air hose, and fan induced draught pipe is closed, while being opened anti-blowpipe by outlet air threeway valve block, closes discharge pipe;Negative pressure chamber's fast transition is plemum, and the dust for being adsorbed on dust-removal cloth-bag outer surface is blown off, then rapidly returns back to dust removal state again.

Description

A kind of bag filter
Technical field
The present invention is a kind of bag filter, belongs to environmental protection machinery equipment technical field.
Background technique
Some workshops for generating a large amount of dust, are equipped with bag filter, for purifying air, harmful dust are avoided to damage The health of worker;The current small-sized few reverse gas cleaning functions of bag filter, medium-sized and large-scale bag filter is all Design has reverse gas cleaning system, has and carries out deashing using back blowing machine, has using air compressor jetting deashing etc., except gathering dust Outside blower, installation reverse gas cleaning blower or compressor are additionally needed, bag filter operation needs two air blowers to work at the same time, Power consumption is big, and equipment is more complex, repairs also pretty troublesome etc..
Summary of the invention
To solve the above-mentioned problems, the present invention designs a kind of only with an air blower operation, real by a set of change-over switch The negative pressure bag-type dust collector that existing dedusting and deashing completely combine.
In order to solve the problems, such as above-mentioned branch art, a kind of bag filter, comprising: air hose, air inlet threeway valve block, air blower Aspiration channel, air blower, air blower discharge pipe, outlet air threeway valve block, discharge pipe, deduster exhaust column, anti-blowpipe, ipper air chamber, cloth Bag inner frame, dust-removal cloth-bag, outer case of dust remover, dirt air hose, lower air chamber, series connection relay valve, blowback branch pipe.
It is characterized in that: being equipped with ipper air chamber and lower air chamber in outer case of dust remover, ipper air chamber is negative pressure chamber, is exported as deduster Exhaust column simultaneously connects with air inlet threeway valve block room blast pipe, and air inlet threeway valve block is converted in air inlet threeway valve block room, works as dedusting When device works: air inlet threeway valve block closes air hose, and fan induced draught pipe is opened;Outlet air threeway valve block closes anti-blowpipe, opens Discharge pipe.
More dust-removal cloth-bags are installed in the lower air chamber in outer case of dust remover, cloth bag in-seam is installed inside dust-removal cloth-bag Frame, the dust-removal cloth-bag section mouth downward with ipper air chamber suitable for reading connect, and lower air chamber is equipped with the air inlet of dirt air hose, dirt air hose and dust-laden Workshop is connected in room.
The lower mouth of lower air chamber's vertebra shape bucket is equipped with concatenated double relay valves, is used for automatic gas-locking ash discharge.
When deduster is used for high-temperature hot-air dedusting, cloth bag material should use the glass fibre cloth of superelevation heatproof, heatproof It should be greater than 200 degree;Cloth bag inner frame is designed as spring steel wire and rolls.
At normal temperature when dedusting, inner frame is designed as plastic grid inner frame.
Because of the suction of air blower, the outlet of air blower connects dusty gas with the blast pipe of outlet air threeway valve block room, threeway Two discharge pipes of valve block room, one of outlet are connected between ipper air chamber by anti-blowpipe, another discharge pipe and big gas phase Connection, threeway valve block at this time are in the state for closing anti-blowpipe, and discharge pipe is opened.
Reverse gas cleaning, which is also named, flashes deashing: outlet air threeway valve block at this time will be opened into the air hose of air, and blower is inhaled Air hose is closed, while being opened anti-blowpipe by outlet air threeway valve block, closes discharge pipe;Negative pressure chamber's fast transition is plemum, drum The pressure wind of blower pass through air blower discharge pipe, into anti-blowpipe after every dust-removal cloth-bag inner cavity is blowed to by blowback branch pipe again, this When dust-removal cloth-bag drum is big rapidly, the dust for being adsorbed on dust-removal cloth-bag outer surface is blown off, then rapidly returns back to dust removal state again.
The outlet air end of anti-blowpipe is connected with more thinner blowback branch pipes, and blowback branch pipe puts in every dust-removal cloth-bag outlet It is interior, it is inserted into the depth of 10-20mm inwards.
The angle of vertebra shape bucket is 60-62 degree.
The air blower of 10000 cubic metres of processing capacity per hour, air hose basal area should be greater than 0.4 square metre.
For advantageous reverse gas cleaning, dust-removal cloth-bag when 10000 cubic metres of processing capacity answers design diameter to exist per hour Between 300-400mm.
The dust-removal cloth-bag gross area is no less than 300-500 square metres, determines the dust-removal cloth-bag gross area by dust moisture content.
The deashing blowback time is designed as 6-10 seconds, if dust water content is higher, the blowback time will be appropriately extended, instead It, the blowback time can shorten.
Blowback overlong time, which will affect, gathers dust, and the blowback time is too short, and ash-removal effect can reduce again.
When dusty gas temperature is higher, cloth bag material should use the glass fibre cloth of superelevation heatproof, and heatproof should be greater than 200 DEG C degree.
A kind of bag filter that the present invention is set has following progress compared with general bag filter.
The present invention can reduce a reverse gas cleaning air blower or pressure fan using conversion wind direction reverse gas cleaning.
Reverse gas cleaning control is simple, flexible operation, and ash-removal effect is ideal.
The present invention can reduce equipment investment, simplify equipment, reduce investment.
It is controlled using microcomputer and automation dedusting can be achieved.
Equipment making is simple, and large, medium and small type bag filter design is suitble to install and use.
Detailed description of the invention
With reference to the accompanying drawing, the invention will be further described.
Accompanying drawing 1 is the structural representation of the present invention.
In figure: 1. air hoses, 2. air inlet threeway valve blocks, 3. air blower aspiration channels, 4. air blowers, 5. air blower discharge pipes, 6. outlet air threeway valve block, 7. discharge pipes, 8. deduster exhaust columns, 9. anti-blowpipes, 10. ipper air chamber, 11. cloth bag inner frames, 12. are removed Dirt cloth bag, 13. outer case of dust remover, 14. dirt air hoses, 15. lower air chamber, 16. series connection relay valves, 17. blowback branch pipes.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
Referring to attached drawing, a kind of bag filter, comprising: air hose 1, air inlet threeway valve block 2, air blower aspiration channel 3, drum Blower 4, air blower discharge pipe 5, outlet air threeway valve block 6, discharge pipe 7, deduster exhaust column 8, anti-blowpipe 9, ipper air chamber 10, cloth bag Inner frame 11, dust-removal cloth-bag 12, outer case of dust remover 13, dirt air hose 14, lower air chamber 15, series connection relay valve 16, blowback branch pipe 17.
It is characterized in that: being equipped with ipper air chamber 10 and lower air chamber 15 in outer case of dust remover 13, ipper air chamber 10 is negative pressure chamber, outlet Connect for deduster exhaust column 8 and with air inlet threeway valve block room blast pipe, air inlet threeway valve block 2 turns in air inlet threeway valve block room It changes, when deduster work, air inlet threeway valve block 2 closes air hose 1, and air blower aspiration channel 3 is opened;Outlet air threeway valve block 6 Anti-blowpipe 9 is closed, discharge pipe 7 is opened.
More dust-removal cloth-bags 12 are installed in the lower air chamber 15 in outer case of dust remover 13, is equipped with and removes inside dust-removal cloth-bag 12 Dirt cloth bag inner frame 11, the section mouth downward with ipper air chamber 10 suitable for reading of dust-removal cloth-bag 12 connect, and lower air chamber 15 is equipped with dirt air hose 14 Air inlet, be connected in dirt air hose 14 and dust-laden workshop room.
The lower mouth of 15 vertebra shape bucket of lower air chamber is equipped with series connection relay valve 16, is used for automatic gas-locking ash discharge.
When deduster is used for high-temperature hot-air dedusting, 12 material of dust-removal cloth-bag should use the glass fabric of superelevation heatproof Material, heatproof should be greater than 200 DEG C of degree;12 cloth bag inner frame 11 of dust-removal cloth-bag is designed as spring steel wire and rolls.
At normal temperature when dedusting, 12 cloth bag inner frame 11 of dust-removal cloth-bag is designed as plastic grid inner frame.
Because of the suction of air blower 4, the outlet of air blower 4 connects dusty gas with the blast pipe of outlet air threeway valve block room, out Two discharge pipes of wind threeway valve block room, one of outlet are connected between ipper air chamber 10 by anti-blowpipe 9, another discharge pipe 7 are connected with atmosphere, and outlet air threeway valve block 6 at this time is in the state for closing anti-blowpipe 9, and discharge pipe 7 is opened.
Reverse gas cleaning, which is also named, flashes deashing: outlet air threeway valve block 6 at this time will be opened into the air hose 1 of air, by air blast Machine aspiration channel 3 is closed, while being opened anti-blowpipe 9 by outlet air threeway valve block 6, closes discharge pipe, and 10 fast transition of ipper air chamber is Plemum, the pressure wind of air blower 4 pass through air blower discharge pipe 5, into anti-blowpipe 9 after blow to every by blowback branch pipe 17 again and remove 12 inner cavity of dirt cloth bag, drum is big rapidly for dust-removal cloth-bag 12 at this time, the dust for being adsorbed on 12 outer surface of dust-removal cloth-bag is blown off, soot blowing Time is 6-10 seconds, then rapidly returns back to dust removal state again.
The outlet air end of anti-blowpipe 9 is connected with more thinner blowback branch pipes, and blowback branch pipe puts in every dust-removal cloth-bag outlet It is interior, it is inserted into the depth of 10-20mm inwards.
The angle of 15 vertebra shape bucket of lower air chamber is 60-62 degree.
The air blower 4 of 10000 cubic metres of processing capacity, air hose basal area should be greater than 0.4 square metre per hour.
For advantageous reverse gas cleaning, the dust-removal cloth-bag 12 when 10000 cubic metres of processing capacity answers design diameter to exist per hour Between 300-400mm.
12 gross area of dust-removal cloth-bag is no less than 300-500 square metres, and total face of dust-removal cloth-bag 12 is determined by dust moisture content Product.
The deashing blowback time is designed as 6-10 seconds, if dust moisture content is higher, the blowback time will be appropriately extended, instead It, the blowback time can shorten.
Blowback overlong time will affect continuation of gathering dust;The blowback time is too short, and ash-removal effect can reduce.
When dusty gas temperature is higher, 12 material of dust-removal cloth-bag should use the glass fibre cloth of superelevation heatproof, and heatproof is answered It is spent greater than 200 DEG C.

Claims (8)

1. a kind of bag filter, comprising: air hose, air inlet threeway valve block, air blower aspiration channel, air blower, air blower outlet air Pipe, outlet air threeway valve block, discharge pipe, deduster exhaust column, anti-blowpipe, ipper air chamber, cloth bag inner frame, dust-removal cloth-bag, deduster Shell, dirt air hose, lower air chamber, series connection relay valve, blowback branch pipe;It is characterized in that: being equipped with ipper air chamber and leeward in outer case of dust remover Room, ipper air chamber are negative pressure chamber, export as deduster exhaust column and connect with air inlet threeway valve block room blast pipe, enter the wind threeway valve block It is converted in air inlet threeway valve block room, when deduster work, air inlet threeway valve block closes air hose, and fan induced draught pipe is beaten It opens;More dust-removal cloth-bags are installed in the lower air chamber in outer case of dust remover, cloth bag inner frame, dedusting are installed inside dust-removal cloth-bag The section mouth that cloth bag is suitable for reading and ipper air chamber is downward connects, and lower air chamber is equipped with the air inlet of dirt air hose, dirt air hose and dust-laden workshop room Inside it is connected;The lower mouth of lower air chamber's vertebra shape bucket is equipped with concatenated double relay valves, is used for automatic gas-locking ash discharge;When deduster is used for When high-temperature hot-air dedusting, cloth bag material should use the glass fibre cloth of superelevation heatproof, and cloth bag inner frame is designed as spring steel wire It rolls;At normal temperature when dedusting, inner frame is designed as plastic grid inner frame;Suction of the dusty gas because of air blower The outlet of power, air blower connects with the blast pipe of outlet air threeway valve block room, and two discharge pipes of threeway valve block room, one of them goes out Mouth is connected between ipper air chamber by anti-blowpipe, and another discharge pipe is connected with atmosphere, and threeway valve block at this time, which is in, closes instead The state of blowpipe, discharge pipe are opened;Reverse gas cleaning, which is also named, flashes deashing: outlet air threeway valve block at this time will be into the air hose of air It opens, fan induced draught pipe is closed, while being opened anti-blowpipe by outlet air threeway valve block, close discharge pipe;Negative pressure chamber quickly turns Become plemum, the pressure wind of air blower passes through air blower discharge pipe, into anti-blowpipe after blow to every by blowback branch pipe again and remove Dirt cloth bag inner cavity, drum is big rapidly for dust-removal cloth-bag at this time, the dust for being adsorbed on dust-removal cloth-bag outer surface is blown off, then again rapidly Return to dust removal state.
2. a kind of bag filter according to claim 1, it is characterized in that: the outlet air end of anti-blowpipe be connected with more compared with Thin blowback branch pipe, blowback branch pipe are put in every dust-removal cloth-bag outlet, are inserted into the depth of 10-20mm inwards.
3. a kind of bag filter according to claim 1, it is characterized in that: the angle of lower air chamber's vertebra shape bucket is 60-62 Degree.
4. a kind of bag filter according to claim 1, it is characterized in that: 10000 cubic metres of processing capacities per hour Air blower, cross air hose basal area should be greater than 0.4 square metre.
5. a kind of bag filter according to claim 1, it is characterized in that: be advantageous reverse gas cleaning, per hour 10000 Dust-removal cloth-bag diameter when cubic meter processing capacity should design between 300-400mm.
6. a kind of bag filter according to claim 1, it is characterized in that: 10000 cubic metres of processing capacities per hour When, the dust-removal cloth-bag gross area is no less than 300-500 square metres, and the gross area of dust-removal cloth-bag is determined by dust moisture content.
7. a kind of bag filter according to claim 1, it is characterized in that: the deashing blowback time is designed as 6-10 seconds Clock, if dust water content is higher, the blowback time will be appropriately extended, conversely, the blowback time can shorten.
8. a kind of bag filter according to claim 1, it is characterized in that: when dusty gas temperature is higher, dust removing cloth Bag material should use the glass fibre cloth of superelevation heatproof, and heatproof should be greater than 200 DEG C of degree.
CN201811304701.9A 2018-11-05 2018-11-05 A kind of bag filter Withdrawn CN109260837A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811304701.9A CN109260837A (en) 2018-11-05 2018-11-05 A kind of bag filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811304701.9A CN109260837A (en) 2018-11-05 2018-11-05 A kind of bag filter

Publications (1)

Publication Number Publication Date
CN109260837A true CN109260837A (en) 2019-01-25

Family

ID=65191736

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811304701.9A Withdrawn CN109260837A (en) 2018-11-05 2018-11-05 A kind of bag filter

Country Status (1)

Country Link
CN (1) CN109260837A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2523483Y (en) * 2002-01-04 2002-12-04 湖南有色冶金劳动保护研究所 Multi-status dust-removing control valve for reversing blow bag dust collector
CN201085970Y (en) * 2007-08-22 2008-07-16 查国才 Back flushing cloth bag dust-collecting equipment
CN105964072A (en) * 2016-06-23 2016-09-28 河北苹乐面粉机械集团有限公司 Horizontal flat bag-type dust catcher
CN107137990A (en) * 2017-05-27 2017-09-08 杨朴 A kind of sack cleaner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2523483Y (en) * 2002-01-04 2002-12-04 湖南有色冶金劳动保护研究所 Multi-status dust-removing control valve for reversing blow bag dust collector
CN201085970Y (en) * 2007-08-22 2008-07-16 查国才 Back flushing cloth bag dust-collecting equipment
CN105964072A (en) * 2016-06-23 2016-09-28 河北苹乐面粉机械集团有限公司 Horizontal flat bag-type dust catcher
CN107137990A (en) * 2017-05-27 2017-09-08 杨朴 A kind of sack cleaner

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Application publication date: 20190125