CN103252152A - Horizontal type electrostatic fabric filter - Google Patents

Horizontal type electrostatic fabric filter Download PDF

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Publication number
CN103252152A
CN103252152A CN2013102096428A CN201310209642A CN103252152A CN 103252152 A CN103252152 A CN 103252152A CN 2013102096428 A CN2013102096428 A CN 2013102096428A CN 201310209642 A CN201310209642 A CN 201310209642A CN 103252152 A CN103252152 A CN 103252152A
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CN
China
Prior art keywords
bag
filter bag
horizontal
filtering
dust
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Pending
Application number
CN2013102096428A
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Chinese (zh)
Inventor
楼波
邬思柯
孙超凡
龙新峰
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South China University of Technology SCUT
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South China University of Technology SCUT
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Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN2013102096428A priority Critical patent/CN103252152A/en
Publication of CN103252152A publication Critical patent/CN103252152A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a horizontal type electrostatic fabric filter. The horizontal type electrostatic fabric filter comprises an air inlet horn mouth, an electrostatic dust-removing region, a horizontal type cloth bag dust-removing region, an air purifying chamber and a smoke outlet, which are connected in sequence, wherein the horizontal cloth bag dust-removing region is internally provided with a plurality of filtering bag pipe boxes; each filtering bag pipe box is formed by filtering bags and a filtering cage; a plurality of the filtering cages are arranged; ash buckets are arranged at the bottoms of the horizontal cloth bag dust-removing region and the electrostatic dust-removing region; and a pulse ash cleaning device is arranged at the right side of the horizontal type cloth bag dust-removing region. According to the horizontal type electrostatic fabric filter disclosed by the invention, air flows entering the cloth bag dust-removing region can be uniformly distributed and impact to partial regions of the filtering bags by smoke is avoided, so that the dust-removing load of each filtering bag is close, filtering materials can be effectively protected and the service life of the filtering bags is prolonged; and under the condition of the same filtering area, the length of the cloth bag dust-removing region can be shortened by 10-20% when the cloth bag dust-removing region is compared with a traditional filtering bag which is arranged in a vertical direction, and the occupied area is reduced.

Description

A kind of horizontal electric-bag complex dust collector
Technical field
The present invention relates to the smoke duster field, be specifically related to a kind of horizontal electric-bag complex dust collector.
Background technology
China belongs to typical smoke pollution country, and the flue dust that a large amount of coal fired power generations produce has caused the serious environmental pollution, the life health of harm humans.China in 2003 is 50mg/Nm for the dust emission standard of coal-burning boiler 3, but according to new standard GB 13223-2012 " thermal power plant's atmosphere pollutants emission standards ", the Emission in Coal-fired Power Plant concentration limit in general area is carried out 30mg/Nm 3, the emission limit of key area is carried out 20mg/Nm 3Electric-bag complex dust collector is a kind of novel cleaner, this equipment combines traditional electrostatic precipitator and the advantage of sack cleaner, has compact conformation, floor space is little, efficiency of dust collection is not subjected to the influence of dust characteristic, and running resistance is little, the grade dust-collection efficiency height, characteristics such as investment and maintenance cost are low have become a kind of trend that power plant's dedusting technology develops.Yet, the bag-type dust district mainly adopts traditional vertical direction to arrange the filter bag mode in the electric-bag complex dust collector at present, enter the bag-type dust district through flue gas level after electrostatic precipitation district's dedusting, after this enter air-purifying chamber from vertical direction again, this kind arrangement easily causes the air-flow skewness, causes front-seat filter bag load of dust remove big, back row's filter bag load of dust remove is little, filter bag damage appears in front-seat filter bag easily, and service life is low, reduces the deduster reliability.
Summary of the invention
Shortcoming and deficiency that the present invention exists in order to overcome prior art provide a kind of horizontal electric-bag complex dust collector.
The present invention adopts following technical scheme:
A kind of horizontal electric-bag complex dust collector, comprise the air horn, electrostatic precipitation district, horizontal bag-type dust district, air-purifying chamber and the exhanst gas outlet that connect successively, inside, described horizontal bag-type dust district arranges a plurality of filter bag bobbin carriages, described each filter bag bobbin carriage is made of filter bag and filter cage, described filter bag is a plurality of, the bottom in described horizontal bag-type dust district and electrostatic precipitation district arranges ash bucket, and the right side in described horizontal bag-type dust district arranges pulse ash remover.
Described air horn arranges the airflow uniform distribution plate, described airflow uniform distribution plate has 3, be followed successively by first block of airflow uniform distribution plate, second block of airflow uniform distribution plate, the 3rd block of airflow uniform distribution plate along the ascending direction of air horn cross-sectional area, be separately positioned on 1/5,2/5,4/5 place of air horn length.
Described airflow uniform distribution plate is orifice plate, and described hole is circular hole, is followed successively by 40%, 40%, 50% along the percent opening of the ascending direction airflow uniform distribution plate of air horn cross-sectional area.
Described filter bag is flat quadrangular shape, and its filter bag bottom width is 1/2 of filter bag top width, and the filter bag bottom level equates with the filter bag overhead height, the equal in length in the length of described filter bag and described horizontal bag-type dust district.
Described filter bag bobbin carriage is made of steel bracket, and described filter bag bobbin carriage bottom is provided with crossbeam.
Described a plurality of filter bag bobbin carriage adopts the stacking formula to place at vertical direction, is provided with four spandrel girders between filter bag bobbin carriage and the ash bucket.
Described horizontal bag-type dust district is connected with air-purifying chamber by dividing plate.
The present invention further comprises the pulse ash remover moving track, and pulse ash remover slides up and down at the pulse ash remover moving track.
Beneficial effect of the present invention:
The present invention can guarantee that the air-flow that enters the bag-type dust district is evenly distributed, and avoids flue gas to the impact of filter bag subregion, makes that the load of dust remove of each filter bag is close, can effectively protect filtrate, prolongs the service life of filter bag; Under the condition of identical filter area, compare with traditional vertical direction layout filter bag, can shorten the length 10%-20% in bag-type dust district, reduce floor space; Use the box type structure with a plurality of filter bag blocking, make things convenient for maintenance and the replacing of filter bag.
Description of drawings
Fig. 1 is the structural representation of a kind of horizontal electric-bag complex dust collector of the present invention;
Fig. 2 is the structure chart in horizontal bag-type dust district among Fig. 1;
Fig. 3 is the filter bag structure chart among Fig. 2.
Shown in the figure:
The 1-air horn, 2-electrostatic precipitation district, 3-horizontal bag-type dust district, the 4-air-purifying chamber, 5-exhanst gas outlet, 6-ash bucket, first block of airflow uniform distribution plate of 1-1-, second block of airflow uniform distribution plate of 1-2-plate, the 3rd block of airflow uniform distribution plate of 1-3-, 3-1-filter bag bobbin carriage, 3-2-spandrel girder, 3-3-filter bag, 3-4-filter bag bottom, 3-5-filter bag top, 3-6-steel crossbeam, the 4-1-dividing plate, 4-2-pulse ash remover moving track, 4-3-pulse ash remover.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 1, a kind of horizontal electric-bag complex dust collector, comprise the air horn 1, electrostatic precipitation district 2, horizontal bag-type dust district 3, air-purifying chamber 4 and the exhanst gas outlet 5 that connect successively in the horizontal direction, the bottom in described horizontal bag-type dust district 3 and electrostatic precipitation district 2 arranges ash bucket 6, the right side in described horizontal bag-type dust district 3 arranges pulse ash remover 4-3, and described pulse ash remover 4-3 is at the pulse ash remover moving track 4-2 deashing that from top to bottom slides.
Described air horn 1 arranges the airflow uniform distribution plate, described airflow uniform distribution plate has 3, be followed successively by first airflow uniform distribution plate 1-1, second airflow uniform distribution plate 1-2, the 3rd airflow uniform distribution plate 1-3 along the ascending direction of air horn cross-sectional area, be separately positioned on 1/5,2/5,4/5 place of air horn 1 length.
Described airflow uniform distribution plate is orifice plate, and described hole is circular hole, is followed successively by 40%, 40%, 50% along the percent opening of the ascending direction airflow uniform distribution plate of air horn cross-sectional area.
Described filter bag 3-3 is flat quadrangular shape, its bottom width is 1/2 of top width, filter bag bottom 3-4 height highly equates with filter bag top 3-5, the equal in length in the length of described filter bag and described horizontal bag-type dust district 3, specifically determine that by required filter bag dedusting area filter bag is long, wide, high concrete value, as shown in Figure 3, flue gas enters filter bag inside from the filter bag outside, belong to the outside filtering type dedusting structure, the flow direction is shown in arrow among Fig. 3, and because adopting the filter bag structure of the narrow top width in the end, each regional load of dust remove of filter bag surface differs littler, avoided flue gas to the washing away the life-span that can prolong each filter bag simultaneously of local filter bag, prevented that the part filter bag from damaging too early.
As shown in Figure 2,3 inside, described horizontal bag-type dust district arrange a plurality of filter bag bobbin carriage 3-1, described each filter bag bobbin carriage 3-1 is made of filter bag 3-3 and filter cage, and described filter bag 3-3 is a plurality of, and every a plurality of filter bags adopt a filter bag bobbin carriage 3-1 structure, realize the blocking of a plurality of filter bags, can effectively safeguard and change, the filter bag bobbin carriage is made of steel bracket, does not influence flowing of flue gas, because filter bag length is longer, so filter bag bobbin carriage bottom is provided with the weight that steel crossbeam 3-6 supports the filter cage.
Described a plurality of filter bag bobbin carriage 3-1 adopts the stacking formula to place at vertical direction, and is provided with four spandrel girder 3-2 between filter bag bobbin carriage 3-1 and the ash bucket 6, and described spandrel girder 3-2 adopts the higher steel plate of intensity, and overall structure is simple, need not complicated overhung construction load-bearing.
Described filter bag bottom 3-4 is towards the electrostatic precipitation district, filter bag top 3-5 is towards air-purifying chamber, the filter cage top in described horizontal bag-type dust district 3 is connected with air-purifying chamber 4 by dividing plate 4-1, adopt the bolt mode to fix, the effect of dividing plate 4-1 is to allow to purify flue gas to enter, prevent from not purifying flue gas and enter.
The course of work of the present invention:
After flue gas enters air horn 1, successively through first airflow uniform distribution plate 1-1, second airflow uniform distribution plate 1-2, the 3rd airflow uniform distribution plate 1-3, evenly shunting is laggard goes into electrostatic precipitation district 2 with inlet flue gas, remove most dust by electrostatic precipitation, dust falls into ash bucket 6 through the effect of pulse ash remover 4-3, flue gas 3 flows towards horizontal bag-type dust district then, because no any obstruction in the flow process, flue gas can keep evenly flowing to forward flowing, flue gas enters filter bag inside from filter bag 3-3 outside, belong to the outside filtering type dedusting structure, pass filtrate, above most of dust will stick to owing to the obstruction of filtrate and adhesion layer dust, because adopting the filter bag structure of the narrow top width in the end, each regional load of dust remove of filter bag 3-3 surface differs littler, has avoided flue gas to the washing away the life-span that can prolong each filter bag simultaneously of local filter bag, prevents that the part filter bag from damaging too early.Flue gas directly flows to horizontal bag-type dust district 3 from electrostatic precipitation district 2, avoided the traditional electrical bag dust collector to install the shortcoming that cutoff board causes pressure reduction to increase additional, has also solved the even problem when flue gas flows through bag-type dust district 3 simultaneously.Through the dedusting effect of filter bag surface and surface dust thereof, flue gas flows to air-purifying chamber 4 from filter bag inside, flows to exhanst gas outlet 5 then.
After using after a while, can long-pending there be a large amount of dust on the filter bag surface, use pulse ash remover 4-3 to carry out deashing this moment, and pulse ash remover 4-3 is equipped with both sides pulse ash remover moving track 4-2, carries out deashing from top to bottom along moving track during the deashing device deashing.
Above-described embodiment is preferred implementation of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.

Claims (8)

1. horizontal electric-bag complex dust collector, it is characterized in that, comprise the air horn, electrostatic precipitation district, horizontal bag-type dust district, air-purifying chamber and the exhanst gas outlet that connect successively, inside, described horizontal bag-type dust district arranges a plurality of filter bag bobbin carriages, described each filter bag bobbin carriage is made of filter bag and filter cage, described filter bag is a plurality of, and the bottom in described horizontal bag-type dust district and electrostatic precipitation district arranges ash bucket, and the right side in described horizontal bag-type dust district arranges pulse ash remover.
2. a kind of horizontal electric-bag complex dust collector according to claim 1, it is characterized in that, described air horn arranges the airflow uniform distribution plate, described airflow uniform distribution plate has 3, be followed successively by first block of airflow uniform distribution plate, second block of airflow uniform distribution plate, the 3rd block of airflow uniform distribution plate along the ascending direction of air horn cross-sectional area, be separately positioned on 1/5,2/5,4/5 place of air horn length.
3. a kind of horizontal electric-bag complex dust collector according to claim 2, it is characterized in that, described airflow uniform distribution plate is orifice plate, and described hole is circular hole, is followed successively by 40%, 40%, 50% along the percent opening of the ascending direction airflow uniform distribution plate of air horn cross-sectional area.
4. a kind of horizontal electric-bag complex dust collector according to claim 1, it is characterized in that, described filter bag is flat quadrangular shape, its filter bag bottom width is 1/2 of filter bag top width, the filter bag bottom level equates with the filter bag overhead height, the equal in length in the length of described filter bag and described horizontal bag-type dust district.
5. a kind of horizontal electric-bag complex dust collector according to claim 1 is characterized in that, described filter bag bobbin carriage is made of steel bracket, and described filter bag bobbin carriage bottom is provided with crossbeam.
6. a kind of horizontal electric-bag complex dust collector according to claim 1 is characterized in that, described a plurality of filter bag bobbin carriages adopt the stacking formula to place at vertical direction, are provided with four spandrel girders between filter bag bobbin carriage and the ash bucket.
7. a kind of horizontal electric-bag complex dust collector according to claim 1 is characterized in that, described horizontal bag-type dust district is connected with air-purifying chamber by dividing plate.
8. according to each described a kind of horizontal electric-bag complex dust collector of claim 1-7, it is characterized in that, also comprise the pulse ash remover moving track.
CN2013102096428A 2013-05-30 2013-05-30 Horizontal type electrostatic fabric filter Pending CN103252152A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106215558A (en) * 2016-08-29 2016-12-14 合肥合意环保科技工程有限公司 A kind of sack cleaner with air cleaner
CN106215559A (en) * 2016-08-29 2016-12-14 合肥合意环保科技工程有限公司 A kind of long bag and low pulse bag-type dust collecting equipment
CN106268076A (en) * 2016-08-29 2017-01-04 合肥合意环保科技工程有限公司 A kind of Novel pulse exhaust dust device with bag
CN106268136A (en) * 2016-08-29 2017-01-04 合肥合意环保科技工程有限公司 A kind of unit pulse bag-type dust-removing device
CN112371505A (en) * 2020-10-26 2021-02-19 常州安康机械有限公司 High-voltage pulse dust removal equipment convenient for cleaning dust of gas path pipeline

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1190263A (en) * 1997-09-17 1999-04-06 Rinetsu Kogyo Kk Dust collector
CN2695087Y (en) * 2003-04-15 2005-04-27 罗思玲 Electron-bag combined dust separator
CN201959680U (en) * 2010-12-28 2011-09-07 江苏菲特滤料有限公司 Frame that is used for supporting the filter bag
CN202638202U (en) * 2012-02-15 2013-01-02 辽宁环星电除尘设备制造有限公司 Horizontal electric-bag composite dust-collector
CN203281185U (en) * 2013-05-30 2013-11-13 华南理工大学 Horizontal electric bag composite dust remover

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1190263A (en) * 1997-09-17 1999-04-06 Rinetsu Kogyo Kk Dust collector
CN2695087Y (en) * 2003-04-15 2005-04-27 罗思玲 Electron-bag combined dust separator
CN201959680U (en) * 2010-12-28 2011-09-07 江苏菲特滤料有限公司 Frame that is used for supporting the filter bag
CN202638202U (en) * 2012-02-15 2013-01-02 辽宁环星电除尘设备制造有限公司 Horizontal electric-bag composite dust-collector
CN203281185U (en) * 2013-05-30 2013-11-13 华南理工大学 Horizontal electric bag composite dust remover

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106215558A (en) * 2016-08-29 2016-12-14 合肥合意环保科技工程有限公司 A kind of sack cleaner with air cleaner
CN106215559A (en) * 2016-08-29 2016-12-14 合肥合意环保科技工程有限公司 A kind of long bag and low pulse bag-type dust collecting equipment
CN106268076A (en) * 2016-08-29 2017-01-04 合肥合意环保科技工程有限公司 A kind of Novel pulse exhaust dust device with bag
CN106268136A (en) * 2016-08-29 2017-01-04 合肥合意环保科技工程有限公司 A kind of unit pulse bag-type dust-removing device
CN112371505A (en) * 2020-10-26 2021-02-19 常州安康机械有限公司 High-voltage pulse dust removal equipment convenient for cleaning dust of gas path pipeline

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Application publication date: 20130821