CN100490937C - Pulse back blowing bag-type dust collector - Google Patents
Pulse back blowing bag-type dust collector Download PDFInfo
- Publication number
- CN100490937C CN100490937C CNB2005100683625A CN200510068362A CN100490937C CN 100490937 C CN100490937 C CN 100490937C CN B2005100683625 A CNB2005100683625 A CN B2005100683625A CN 200510068362 A CN200510068362 A CN 200510068362A CN 100490937 C CN100490937 C CN 100490937C
- Authority
- CN
- China
- Prior art keywords
- bag
- blowback
- dust
- level
- casing
- 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.)
- Active
Links
- 239000000428 dust Substances 0.000 title claims abstract description 39
- 238000007664 blowing Methods 0.000 title description 2
- 239000004744 fabric Substances 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 238000005453 pelletization Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000011010 flushing procedure Methods 0.000 abstract 7
- 238000005192 partition Methods 0.000 abstract 1
- 238000010926 purge Methods 0.000 description 3
- 238000010410 dusting Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/70—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter
- B01D46/71—Regeneration of the filtering material or filter elements inside the filter by acting counter-currently on the filtering surface, e.g. by flushing on the non-cake side of the filter with pressurised gas, e.g. pulsed air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/31—Other construction details
- B01D2201/313—Means for protecting the filter from the incoming fluid, e.g. shields
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Processing Of Solid Wastes (AREA)
- Blast Furnaces (AREA)
Abstract
The pulse back flushing bag-type dust collector includes box, dust collecting cloth bag, partition board, gas collecting box, the first stage and the second stage of pulse back flushing dust collecting systems. The dust collecting cloth bag is 8-12 m long, the first stage pulse back flushing system has the back flushing branch with port at the mouth of the dust collecting cloth bag, the second stage pulse back flushing system has the back flushing branch with port stretched into the dust collecting cloth bag. The two stages of pulse back flushing can raise the dust collecting efficiency, increase effective filtering area of the dust collecting cloth bag and raise the dust eliminating efficiency.
Description
Technical field
The present invention relates to a kind of bag-type dust collector, particularly a kind of pulse backflushing bag-type dust collectors that are used for the steel industry blast furnace gas dry dusting more.
Background technology
Bag-type dust collector is widely used in the dedusting of all gases medium or solid and the gas barrier technology, in the technical field especially for blast furnace gas dry dusting.In the prior art, bag-type dust collector by casing, dust-removal cloth-bag, dividing plate, pulse backblowing device, air inlet/gas outlet, ash bucket, unload structures such as ash and defeated ash and form.As shown in Figure 1, dusty gas enters casing from air inlet, and after filtering, gas enters in the dust-removal cloth-bag, by pure qi (oxygen) body collecting pipe, enters the pure qi (oxygen) body plenum chamber unit of casing, again by pure qi (oxygen) body gas outlet output casing.Pulse backblowing gas enters from the blowback house steward, by the blowback arm that is located at the dust removing cloth sack cloth bag is carried out pulse backblowing, thereby the dust blowback on the cloth bag is removed, and dust is discharged casing by ash bucket and ash-discharging device from ash hole.According to the material of cloth bag, factors such as gas characteristic and temperature, existing bag-type dust collector box body diameter is generally 3.5 meters, and the cloth bag length is generally 130 millimeters of 6 meters and diameters, sets out 192 of dust-removal cloth-bags in the case.Because the restriction of the blowback efficient of pulse backflushing bag-type system, the effective length of cloth bag can not increase.The dust-removing box quantity of whole dust-removal system is more, and area occupied is big, and cost is higher.
Summary of the invention
Based on the shortcoming that exists in the above-mentioned prior art, the object of the invention provides a kind of pulse backflushing bag-type dust collector that improves the cloth bag effective length, improves the dedusting area of cloth bag and casing, improves efficiency of dust collection.
Pulse backflushing bag-type dust collector of the present invention comprises: casing, and a plurality of dust-removing boxs constitute whole dust-removal system; Dividing plate places among the casing, and casing top is separated out a plenum chamber unit; The plenum chamber unit, dusty gas enters and comes together in wherein after going out the dust-removal cloth-bag udst separation, after discharge pure qi (oxygen) body gas outlet; Dust-removal cloth-bag is used for blowing clearly the dust attached on the dust-removal cloth-bag, and its length is 8-12m; One-level pulse backflushing bag-type system and secondary pulse backflushing bag-type system; The dusty gas air inlet, it is arranged at the bottom of casing; Pure qi (oxygen) body gas outlet places the upper position of the plenum chamber of casing.
Wherein one-level pulse backflushing bag-type system has one-level purge gas inlet, one-level blowback house steward and one-level blowback arm, and secondary pulse backflushing bag-type system has secondary blowback house steward and secondary blowback arm.
Wherein the port of one-level pulse backblowing arm reaches the position of dust removing cloth sack.Secondary pulse backblowing arm passes one-level blowback house steward and one-level blowback arm extend in the dust-removal cloth-bag, and stretching into the degree of depth is 1/2 of dust-removal cloth-bag length, and secondary blowback arm and one-level blowback arm are concentric.
Wherein secondary blowback arm is made up of more piece, every joint length 1-2m, between link to each other by articulation.
Wherein this two-stage blowback point is respectively the entry position of dust-removal cloth-bag and the middle part of sack, and blowback points promptly at different levels are positioned at the top of each grade section, the blowback point of one-level blowback at the blowback point of sack porch secondary blowback at the sack middle part.
Wherein the I and II blowback system carries out the one-level blowback earlier, carries out the secondary blowback again, or carries out the secondary blowback earlier, carries out the one-level blowback again, and its two kinds of blowback modes can be slightly overlapping.
The present invention effectively raises the dedusting area and the length of dust-removal cloth-bag, has improved single casing efficiency of dust collection.
Description of drawings
Fig. 1 is the structure chart of the present bag-type dust collector of using always;
Fig. 2 is the structure chart of pulse backflushing bag-type dust collector casing of the present invention;
Fig. 3 is the I position enlarged drawing of Fig. 2;
Fig. 4 is the II position enlarged drawing of Fig. 2;
Fig. 5 is the III position enlarged drawing of Fig. 2.
Among the figure
1. secondary blowback house steward 2. secondary blowback arms
3. one-level blowback house steward 4. one-level blowback arms
5. dividing plate 6. dust-removal cloth-bags
7. support frame 8. threadeds for union
9. bag-type dust collector casing 10. plenum chambers
The 12. one-level anti-blowpipes inlet 11. the secondary anti-blowpipe enters the mouth
Short tube on 13 upper flanges and the blind flange 14.
15. following short tube 16. lower flanges
17. casing flange 18. sleeve pipes
The 20. pure qi (oxygen) bodies outlet 19. dusty gas enters the mouth
The specific embodiment
The present invention is further illustrated below in conjunction with Figure of description
Be depicted as the structure chart of embodiments of the invention as Fig. 2-4, pulse backflushing bag-type dust collector comprises casing 9, dividing plate 5, dust-removal cloth-bag 6, support frame 7, plenum chamber 10, one-level blowback system, secondary blowback system, dusty gas inlet 19, pure qi (oxygen) body outlet 20 etc.
The one-level blowback system is made up of one-level purge gas inlet 12, one-level blowback house steward 3, one-level blowback arm 4.
The secondary blowback system is made up of secondary purge gas inlet 11, secondary blowback house steward 1, secondary blowback arm 2.
One-level anti-blowpipe inlet enters bag-type dust collector casing 9 backs and can link to each other by flange with one-level blowback house steward 3, and secondary anti-blowpipe inlet enters bag-type dust collector casing 9 backs and also can link to each other by flange with secondary blowback house steward 1.Conveniently in bag-type dust collector casing (9), to dismantle one-level blowback house steward 3 and secondary blowback house steward 1.
The dedusting purification process is: dusty gas enters bag-type dust collector casing 9 by dusty gas inlet 19, after dust-removal cloth-bag 6 filters out dust, enters plenum chamber 10, enters pure qi (oxygen) body house steward by pure qi (oxygen) body outlet 20 again.
Each dust-removal cloth-bag 6 length in the bag-type dust collector casing 9 are 8-12m, adopt two-stage pulse backblowing mode to carry out deashing to each dust-removal cloth-bag 6 in the bag-type dust collector casing 9, the blowback point of the two-stage blowback system of each dust-removal cloth-bag 6 is respectively the entry position of dust-removal cloth-bag and the middle part of sack, be the top that anti-mouths at different levels are positioned at each grade section, the blowback point that is the one-level blowback system is in the porch of sack, and the blowback point of secondary blowback system is at the sack medium position.
When carrying out the pulse backflushing bag-type deashing, except that the I and II blowback system can carry out simultaneously, preferably carry out the one-level blowback earlier, carry out the secondary blowback again, or carry out the secondary blowback earlier, carry out the one-level blowback again, its two kinds of blowback modes can be slightly overlapping.
The present invention is not limited only to above-mentioned embodiment, can also be the embodiment of various accommodations.For example, suitably strengthen dust-removal cloth-bag length, and, tertiary vein is set towards blowback system etc. as required according to the principle of two-stage pulse backblowing.
Claims (2)
1. pulse backflushing bag-type dust collector comprises:
Casing;
Dividing plate places box house, and casing top is separated out a plenum chamber unit;
Dust-removal cloth-bag places casing;
The dusty gas inlet places lower box;
The pure qi (oxygen) body exports, and places the top of the plenum chamber of casing;
One-level pulse backflushing bag-type system;
It is characterized in that described dust-removal cloth-bag length is 8-12m, and secondary pulse backflushing bag-type system is set, this secondary pulse backflushing bag-type system has secondary blowback house steward and secondary blowback arm, and the blowback port of this secondary blowback arm extend in the dust-removal cloth-bag;
Described one-level pulse backflushing bag-type system comprises one-level blowback house steward and one-level blowback arm;
Secondary blowback arm passes one-level blowback house steward and one-level blowback arm extend in the cloth bag, and stretching into the degree of depth is 1/2 of dust-removal cloth-bag length, and secondary blowback arm and one-level blowback arm are concentric;
Described secondary blowback arm is made up of more piece, the joint with the joint between link to each other by articulation.
2. pulse backflushing bag-type dust collector as claimed in claim 1 is characterized in that being provided with the pulse backblowing dust pelletizing system more than three grades or three grades.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100683625A CN100490937C (en) | 2005-05-08 | 2005-05-08 | Pulse back blowing bag-type dust collector |
| UAA200701329A UA90478C2 (en) | 2005-05-08 | 2005-09-05 | Bag pulse reverse blast ash removal device |
| PCT/CN2005/001405 WO2006119681A1 (en) | 2005-05-08 | 2005-09-05 | Bag pulse reverse blast ash removal device |
| RU2007104245/15A RU2355464C2 (en) | 2005-05-08 | 2005-09-05 | Dust removing unit with back pulse blowdown of fabric bag |
| TR2007/00789T TR200700789T1 (en) | 2005-05-08 | 2005-09-05 | Bag backward impact ash thrower |
| MYPI20060033A MY144254A (en) | 2005-05-08 | 2006-01-05 | Pulse inverse blow cloth bag dedusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100683625A CN100490937C (en) | 2005-05-08 | 2005-05-08 | Pulse back blowing bag-type dust collector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1857763A CN1857763A (en) | 2006-11-08 |
| CN100490937C true CN100490937C (en) | 2009-05-27 |
Family
ID=37296751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100683625A Active CN100490937C (en) | 2005-05-08 | 2005-05-08 | Pulse back blowing bag-type dust collector |
Country Status (6)
| Country | Link |
|---|---|
| CN (1) | CN100490937C (en) |
| MY (1) | MY144254A (en) |
| RU (1) | RU2355464C2 (en) |
| TR (1) | TR200700789T1 (en) |
| UA (1) | UA90478C2 (en) |
| WO (1) | WO2006119681A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833617A (en) * | 2016-05-20 | 2016-08-10 | 宁夏三瑞机械环保设备有限公司 | Boiler dust collector early-warning device |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5665297B2 (en) | 2009-09-30 | 2015-02-04 | 三菱重工業株式会社 | Dust removal device |
| CN102814085A (en) * | 2011-06-06 | 2012-12-12 | 李军 | Blowing method and device thereof for pulsed jet cloth filter |
| CN104667657A (en) * | 2015-03-11 | 2015-06-03 | 张家港市双龙氧化锌厂 | Dust recovery device |
| CN105148633A (en) * | 2015-10-14 | 2015-12-16 | 成都市智联环境保护设备有限公司 | Full-automatic multistage filter-bag dust remover with discharge function |
| CN108742315A (en) * | 2018-07-03 | 2018-11-06 | 苏州大西力环保科技有限公司 | A kind of pulse backblowing type secondary filtration industrial dust collector |
| CN110016530B (en) * | 2019-05-06 | 2024-02-23 | 中冶赛迪工程技术股份有限公司 | Blast furnace gas full-dry purification system and process flow thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO131380C (en) * | 1973-01-22 | 1975-05-21 | Svenska Flaektfabriken Ab | |
| US4336035A (en) * | 1979-03-12 | 1982-06-22 | Wheelabrator-Frye Inc. | Dust collector and filter bags therefor |
| JPH10309421A (en) * | 1997-05-12 | 1998-11-24 | Nippon Spindle Mfg Co Ltd | Bag filter type dust collecting apparatus |
| CN1563286A (en) * | 2004-03-26 | 2005-01-12 | 承德新新钒钛股份有限公司 | Multiple stage pulsant ash removal equipment in bag typed dust removal for blast furnace gas, and method |
-
2005
- 2005-05-08 CN CNB2005100683625A patent/CN100490937C/en active Active
- 2005-09-05 UA UAA200701329A patent/UA90478C2/en unknown
- 2005-09-05 TR TR2007/00789T patent/TR200700789T1/en unknown
- 2005-09-05 RU RU2007104245/15A patent/RU2355464C2/en active
- 2005-09-05 WO PCT/CN2005/001405 patent/WO2006119681A1/en active Application Filing
-
2006
- 2006-01-05 MY MYPI20060033A patent/MY144254A/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833617A (en) * | 2016-05-20 | 2016-08-10 | 宁夏三瑞机械环保设备有限公司 | Boiler dust collector early-warning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1857763A (en) | 2006-11-08 |
| MY144254A (en) | 2011-08-29 |
| UA90478C2 (en) | 2010-05-11 |
| RU2007104245A (en) | 2008-09-27 |
| TR200700789T1 (en) | 2007-04-24 |
| WO2006119681A1 (en) | 2006-11-16 |
| RU2355464C2 (en) | 2009-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG PROVINCE METALLURGICAL ENGINEERING CO., L Free format text: FORMER NAME: SHANGDONG DESIGN INST OF METALLURGY |
|
| CP03 | Change of name, title or address |
Address after: 250101 Shandong province Ji'nan High-tech Development Zone, Road No. 1969 Patentee after: Laiwu Tianming Metallurgical Equipment Co., Ltd. Address before: 250014 No. 134 Lishan Road, Shandong, Ji'nan Patentee before: Shangdong Design Inst of Metallurgy |