CN202006070U - Electrostatic agglomeration type filter bag dust collector - Google Patents
Electrostatic agglomeration type filter bag dust collector Download PDFInfo
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- CN202006070U CN202006070U CN2011200276066U CN201120027606U CN202006070U CN 202006070 U CN202006070 U CN 202006070U CN 2011200276066 U CN2011200276066 U CN 2011200276066U CN 201120027606 U CN201120027606 U CN 201120027606U CN 202006070 U CN202006070 U CN 202006070U
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- Prior art keywords
- electrode
- earth electrode
- filter bag
- dust
- chamber
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- 239000000428 dust Substances 0.000 title claims abstract description 50
- 238000005054 agglomeration Methods 0.000 title abstract 2
- 230000002776 aggregation Effects 0.000 title abstract 2
- 239000000779 smoke Substances 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 16
- 239000003546 flue gas Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 10
- 239000008187 granular material Substances 0.000 claims description 10
- 230000003068 static Effects 0.000 claims description 8
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 5
- 240000002853 Nelumbo nucifera Species 0.000 claims description 5
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 abstract description 11
- 238000002156 mixing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 238000005192 partition Methods 0.000 description 4
- 238000005367 electrostatic precipitation Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011068 load Methods 0.000 description 1
- -1 locellus valve Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Abstract
An electrostatic agglomeration type filter bag dust collector comprises an air inlet smoke case, an air purifying smoke duct and a casing. The casing comprises an ionization chamber and a filter chamber, a group of longitudinal grounding electrodes, corona electrodes and rows of transverse grounding electrodes are sequentially arranged inside the ionization chamber, the first row transverse grounding electrodes and the other rows of transverse grounding electrodes are arranged in a staggered manner, and a filter bag dust collecting component is arranged inside the filter chamber. Air is ionized firstly and carries positive electric charges and negative electric charges through dust particles in smoke in an ionization area to be agglomerated into larger particles with the dust particles, and the dust particles ratained in the filter bag are in lump loosened ventilating structure after being filtered. Dedusting effect of equipment can be greatly improved, secondary back-mixing of fine dust can be avoided, pressure loss can be reduced, and dedusting air speed can be increased.
Description
Technical field
The utility model relates to cleaner, especially the cleaner of filter bag type.
Background technology
The filter bag type dedusting is based on the dust collecting process of work principle of filter, directly utilizes organic fiber or inorfil filter cloth that the dust in flue gas particle is filtered out, and characteristics are discharge index height, can reach 30mg/Nm
3Below, and to accounting for the fine dust particle (PM10 of soot emissions total amount 1/4th, PM2.5) very good effect is also arranged, therefore obtained in recent years using widely, conventional filter bag type cleaner is by the air inlet smoke box, exhaust uptake, the filter chamber, filter bag and framework, ash bucket, deashing mechanism, airflow distribution device, compositions such as locellus valve, flue gas enters from the air inlet smoke box, behind airflow distribution device, evenly arrive the filter chamber, behind filter bag, dust granules has been stayed the filter bag top layer, purified gas is discharged by exhaust uptake, for guaranteeing the normal operation of filter bag type cleaner, maintenance to filter bag is extremely important, filter bag and framework thereof mostly are the branch cell structure, must often strictly start respectively by correct procedure, close down the locellus valve, the maintenance filter bag, safeguard that loaded down with trivial details is a distinct disadvantage of filter bag type dust collecting process and equipment, in addition because operation principle and structural reason, conventional filter bag type cleaner easily produces the secondary back-mixing of fine dust, the fine and close dust stratification layer of filter bag bottom accumulation makes the flue gas pressures loss also bigger, reach about 1200～1800Pa, increase operating cost, limited the dedusting wind speed.
China's utility model patent " electric filter-bag deduster " (patent No. 02224478.6) and Chinese utility model patent " technique for dust removal combined electricity with fabric and equipment thereof " (patent No. 200510095431.1) have been announced the dust collecting process and the equipment thereof of a kind of electrostatic precipitation and filter bag dedusting combination respectively, though both version differences, but technical scheme all is to increase one-level electrostatic precipitation operation before the filter bag dedusting, utilize electrostatic precipitation to remove most dust granules in the flue gas, thereby alleviate the live load of filter bag dedusting, prolong the maintenance period of filter bag, the dust collecting process of above-mentioned two kinds of electrostatic precipitations and filter bag dedusting combination and equipment thereof have been alleviated the loaded down with trivial details problem of filter bag maintenance to a certain extent, increase but cost is an operating cost, the problems such as the pressure loss of the fine and close dust stratification layer generation in the secondary back-mixing of fine dust and filter bag bottom simultaneously are not resolved.
The utility model content
The purpose of this utility model is to overcome the deficiency of existing filter bag type cleaner, provides a kind of maintenance simple, the static cohesion type bag dust collector of high-efficiency low energy consumption.
Static cohesion type bag dust collector, contain air inlet smoke box, pure qi (oxygen) flue, housing, ash bucket is below housing, housing has two parts of ionisation chamber and filter chamber, be provided with self-regulating airflow distribution device between ionisation chamber and the filter chamber, be furnished with one group of vertical earth electrode, corona discharge electrode and many horizontal rows in the ionisation chamber successively to earth electrode, first horizontal row is arranged to the earth electrode staggered positions to earth electrode and later each horizontal row, is furnished with filter bag dedusting assembly in the filter chamber.
Vertical interlaced arrangement corona discharge electrode between the earth electrode forms some passages of gas flow, and first horizontal row arranges that to earth electrode and the dislocation of adjacent transverse earth electrode the distance of each row and front-seat 1/4～1/2 the electrode section length that staggers is arranged later on; Gas is ionized at the corona discharge electrode place, and dust granules mixes and condenses at horizontal earth electrode place after lotus has positive and negative charge in this zone in the flue gas.
Vertically ground electrode width is 300mm～5000mm, laterally ground electrode width is 150mm～600mm, vertically the earth electrode and first horizontal row distance between earth electrode is 50～300mm, and laterally the earth electrode pitch is 50～500mm, and vertically ground electrode arrangement is 1～100.
The beneficial effects of the utility model are: a kind of novel static cohesion type bag dust collector is provided, gas is at first through ionization, there are positive and negative different electric charge and mixing to be condensed into bigger particle by ionized region dust in flue gas particle by lotus, the dust of staying after filtering in the filter bag is the loose ventilating structure of bulk, greatly improved the dust removing effects of equipment, avoid the secondary back-mixing of fine dust simultaneously, reduced the pressure loss, improved the dedusting wind speed.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the housing section layout drawing of the utility model embodiment.
Fig. 3 is the housing section partial enlarged drawing of the utility model embodiment.
Among the figure: 1---air inlet smoke box; The 2---housing; The 3---negative corona utmost point; The 4---positive corona utmost point; The vertical earth electrode of 5---; The horizontal earth electrode of 6-; The 7---airflow distribution device; The 8---partition plate; The 9---filter bag; The 10---deashing mechanism; 11---locellus valve; 12---pure qi (oxygen) flue; The 13---ash bucket; 14---monitoring material position device; The 15---rapping apparatus.
The specific embodiment:
Below in conjunction with drawings and Examples the utility model is further specified.
As figure, contain air inlet smoke box 1, pure qi (oxygen) flue 12, housing 2, ash bucket 13, monitoring material position device 14, filter bag 9, partition plate 8, deashing mechanism 10, airflow distribution device 7, locellus valve 11, also contain vertical earth electrode 5, horizontal earth electrode 6, the positive corona utmost point 4, the negative corona utmost point 3, rapping apparatus 15; Air inlet smoke box 1 is installed in housing 2 left sides, pure qi (oxygen) flue 12 is above housing 2, and ash bucket 13 is designed to truncated rectangular pyramids shape, is installed in housing 2 belows, housing 2 inside left are furnished with vertical earth electrode 5, horizontal earth electrode 6, the positive corona utmost point 4, the negative corona utmost point 3, rapping apparatus 15, as ionisation chamber; The right side is furnished with filter bag 9, partition plate 8, deashing mechanism 10, as the filter chamber, there is airflow distribution device 7 centre, the flue gas stream distribution of regulating each passage of ionisation chamber and entering the filter chamber, partition plate 8 is divided into several locellus with the filter chamber, locellus valve 11 is controlled enabling, closing down of each locellus, and rapping apparatus 15 all has setting at horizontal earth electrode 5, vertical earth electrode 6, the positive corona utmost point 4, the negative corona utmost point 3 places, to guarantee the electrode cleaning.
Flue gas enters the osculum of air inlet smoke box 1, air velocity reduces with the section that enlarges gradually, in air inlet smoke box 1, take water conservancy diversion to add porous plate and force uniform measure, make cross-sectional flow even, dusty gas after uniform enters housing 2 left side ionisation chambers, at the positive corona utmost point 4, vertically apply with HVDC electric forming highfield between the earthing pole 5, keep a space that is enough to make gas ionization, apply with HVDC electric forming highfield between the adjacent negative corona utmost point 3 and the vertical earthing pole 5, keep a space that is enough to make gas ionization equally, but direction of an electric field is opposite, when flue gas passes through each ionized region, a part of dust granules lotus in the flue gas has positive charge, part lotus has negative electrical charge, two kinds of charged dust granules move to filtering area under the impetus of flue gas stream, be blocked and divide at horizontal earthing pole 6 first rows place toward both sides, like this, in the eddy current mixed zone that has vertically formed positive and negative charged dust granules between earthing pole 5 and horizontal earthing pole 6 first rows, make positive and negative charged dust granules cohesion, equally, second row and the 3rd row at horizontal earthing pole 6 also can form eddy current because of stopping of front row, positive and negative charged dust granules is fully condensed, three cohesion back fine dust particle (PM10, PM2.5) can reduce 90%, under the control and regulation of airflow distribution device 7, flue gas enters the filter chamber of housing 2 and evenly distributes, this moment is a spot of in the flue gas does not condense charged fine dust particle and can condense once more, filtration through filter bag 9, dust granules after the cohesion can change the structure and the physical property of filter bag 9 surface dust layers, electric charge makes dust be adsorbed in filter bag with bulk mostly, formed dust layer is porous, loose cavernous body shape, compare with common dust layer that to have gas permeability strong, resistance is low, the characteristics that purification efficiency is high, gap between the dust group is strengthened, reduced dust layer density, when having reduced flue gas resistance, also reduced the absorption affinity of filter bag outer surface grit; When filter bag surface knoisphere reaches a certain amount of, remove and fall into ash bucket 13 by deashing mechanism 10, monitoring material position device 14 is installed in 1/2 of ash bucket 13 and highly locates, control ash bucket 13 ash discharges.
Vertically the corresponding flue gas flow of the plate width of earth electrode 5 and horizontal earth electrode 6 is designed to 300mm～5000mm and 150mm～600mm respectively, vertically earth electrode 5 is arranged 1～100, excessive size is had relatively high expectations to ancillary equipment such as rectifying installation, transformers, and operating cost also can increase simultaneously; The distance between vertical earth electrode 5 and horizontal earth electrode 6 first rows and the pitch of horizontal earth electrode 6 should be chosen corresponding value according to the plate width of vertical earth electrode 5 and horizontal earth electrode 6, actual test for the former between 50～300mm, the latter is comparatively suitable between 50～500mm, the effect of mixing cohesion is better, and fine dust particle (PM10, PM2.5) can reduce more than 90%.
Above-mentioned static cohesion type bag dust collector, can satisfy new environmental emission standard, can improve operational reliability again, reduce dedusting operating cost, practical for the synergy of active service cleaner reform, the cleaner reform project that especially place is little, the dilatation difficulty is big can reach new discharge standard requirement.Have small investment, the construction period is short, floor space is little, efficiency of dust collection is high plurality of advantages, both be suitable for grassroot project and also be suitable for technological transformation project, therefore, have a good application prospect in the dedusting technology field.
Claims (3)
1. static cohesion type bag dust collector, contain air inlet smoke box, pure qi (oxygen) flue, housing, ash bucket is below housing, housing has two parts of ionisation chamber and filter chamber, be provided with self-regulating airflow distribution device between ionisation chamber and the filter chamber, be furnished with filter bag dedusting assembly in the filter chamber, it is characterized in that: be furnished with one group of vertical earth electrode, corona discharge electrode and many horizontal rows in the ionisation chamber successively to earth electrode, first horizontal row is arranged to the earth electrode staggered positions to earth electrode and later each horizontal row.
2. static cohesion type bag dust collector according to claim 1 is characterized in that: interlaced arrangement corona discharge electrode between vertical earth electrode, form some gas passages, and adjacent two corona discharge electrode polarity are opposite; First horizontal row arranges that to earth electrode and the dislocation of adjacent transverse earth electrode the distance of each row and front-seat 1/4～1/2 the electrode section length that staggers is arranged later on; Gas is ionized at the corona discharge electrode place, and dust granules mixes and condenses at horizontal earth electrode place after lotus has positive and negative charge in this zone in the flue gas.
3. static cohesion type bag dust collector according to claim 2, it is characterized in that: vertically ground electrode width is 300mm～5000mm, laterally ground electrode width is 150mm～600mm, vertically the earth electrode and first horizontal row distance between earth electrode is 50～300mm, laterally the earth electrode pitch is 50～500mm, and vertically ground electrode arrangement is 1～100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200276066U CN202006070U (en) | 2011-01-27 | 2011-01-27 | Electrostatic agglomeration type filter bag dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200276066U CN202006070U (en) | 2011-01-27 | 2011-01-27 | Electrostatic agglomeration type filter bag dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202006070U true CN202006070U (en) | 2011-10-12 |
Family
ID=44747734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200276066U Expired - Fee Related CN202006070U (en) | 2011-01-27 | 2011-01-27 | Electrostatic agglomeration type filter bag dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202006070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151452A (en) * | 2011-01-27 | 2011-08-17 | 江苏宇达电站辅机阀门制造有限公司 | Electrostatic coagulation type filter bag dust removal process and equipment |
| CN103721517A (en) * | 2014-01-17 | 2014-04-16 | 中钢集团天澄环保科技股份有限公司 | Electrical agglomeration bag filter |
-
2011
- 2011-01-27 CN CN2011200276066U patent/CN202006070U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102151452A (en) * | 2011-01-27 | 2011-08-17 | 江苏宇达电站辅机阀门制造有限公司 | Electrostatic coagulation type filter bag dust removal process and equipment |
| CN103721517A (en) * | 2014-01-17 | 2014-04-16 | 中钢集团天澄环保科技股份有限公司 | Electrical agglomeration bag filter |
| CN103721517B (en) * | 2014-01-17 | 2016-04-06 | 中钢集团天澄环保科技股份有限公司 | A kind of electrical agglomeration bag filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20200127 |