CN201971854U - Converter gas dry method bag type recovery and purification system - Google Patents
Converter gas dry method bag type recovery and purification system Download PDFInfo
- Publication number
- CN201971854U CN201971854U CN2011200478941U CN201120047894U CN201971854U CN 201971854 U CN201971854 U CN 201971854U CN 2011200478941 U CN2011200478941 U CN 2011200478941U CN 201120047894 U CN201120047894 U CN 201120047894U CN 201971854 U CN201971854 U CN 201971854U
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- Prior art keywords
- gas
- cooler
- ash conveying
- phase pneumatic
- bag type
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000000746 purification Methods 0.000 title abstract description 11
- 238000011084 recovery Methods 0.000 title abstract description 7
- 239000007789 gas Substances 0.000 claims abstract description 49
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003345 natural gas Substances 0.000 claims abstract description 5
- 239000003034 coal gas Substances 0.000 claims description 27
- 239000003245 coal Substances 0.000 claims description 6
- 239000003818 cinder Substances 0.000 claims description 5
- 230000001131 transforming effect Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 13
- 238000007599 discharging Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract description 2
- 238000007790 scraping Methods 0.000 abstract 1
- 238000009834 vaporization Methods 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 15
- 238000005516 engineering process Methods 0.000 description 6
- 238000001556 precipitation Methods 0.000 description 3
- 239000012716 precipitator Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000000752 ionisation method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005200 wet scrubbing Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a converter gas dry method bag type recovery and purification system. The recovery and purification system has the scheme that the two ends of a vaporization cooler are respectively connected with a converter and an evaporative cooler, the evaporative cooler is connected with a gas pipe which is connected with a plurality of bag type dusters in parallel, a dense-phase pneumatic ash conveying device I which is connected with a fine dust bin is arranged at the lower parts of the bag type dusters, the upper ends of the bag type dusters are connected with an explosion unloading device through pipelines, the upper ends of the bag type dusters are connected with a gas purifying pipe which is respectively connected with a diffusing tower and a gas cooler through a gas induced fan and a gas switch valve, the diffusing tower is connected with a natural gas igniting device and a nitrogen injecting device, the gas cooler is connected with a gas storing cabinet through a cut-off valve bank, a nitrogen storing tank is connected with the bag type dusters and the dense-phase pneumatic ash conveying device I through a pipeline and a nitrogen heater, an urgent ash discharging device and a dense-phase pneumatic ash conveying device II are respectively arranged at the lower part of the evaporative cooler through a scraping machine, and the dense-phase pneumatic ash conveying device II is connected with a coarse ash bin. The dust content in the gas which is purified and recovered by the recovery and purification system is smaller than 5mg/Nm3.
Description
Technical field
The invention belongs to RECOVERY OF CONVERTER GAS treating plant field, relates to a kind of employing dry-method bag-type dedusting pattern particularly, to the converter gas dry method pocket type reclaiming clean system of the omnidistance closed circuit reclaiming clean of the coal gas that produces in the converter steelmaking process.
Background technology
The flue gas that converter produces in smelting process, its carbon monoxide content is about 45 ~ 55%, and dust content is up to 20 ~ 25 g/Nm
3, can not directly use, must carry out could using after the dedusting.At present, the RECOVERY OF CONVERTER GAS purification process mainly adopts wet scrubbing and dry electric precipitation dual mode.
The converter gas wet purification process mainly is made up of secondary purification device and dewatering unit, and the coal gas of converter dust content after wet purification is up to 100mg/Nm at present
3, in scavenging process, consume a large amount of water, there is the secondary pollution of water and washing back dust, need subsequent disposal, the running cost height.
The coal gas of converter dry electric precipitation reclaims technology and mainly is made up of evaporative cooler, electrostatic precipitator and gas cooler etc.The electric precipitation principle is to utilize high pressure ionization, and dust is adsorbed by cathode-anode plate, the dust on rapping regularly or the sound wave cleaning cathode-anode plate, and dust has spark to produce at ionization process, easily causes coal gas at the electric precipitator internal explosion, and integral device is damaged.
Summary of the invention
It is stable that the purpose of the invention provides a kind of operating safety, and easy to operate, pollution-free, the coal gas dust content behind the reclaiming clean is at 5mg/Nm
3Following converter gas dry method pocket type reclaiming clean system.The invention can be reclaimed the heat energy in the converter steelmaking process, has stopped the problem of electric precipitator inside and recovery system blast.
The purpose of the invention is achieved through the following technical solutions: converter gas dry method pocket type reclaiming clean system, it is characterized in that: converter is connected with blister cooler, blister cooler is connected with evaporative cooler, the outlet of evaporative cooler is connected with gas pipe, the other end of gas pipe some the sack cleaners that are connected in parallel by the road, concentrated phase pneumatic ash conveying plant I is installed in the bottom of every sack cleaner, concentrated phase pneumatic ash conveying plant I is connected with thin grey storehouse by the road, the upper end of every sack cleaner by the road with unload quick-fried device and be connected, the gas exit that is located at sack cleaner upper end by the road with the purified gas pipe coupling, the other end of clean coal tracheae through coal gas induced draft fan and coal gas transforming valve respectively with diffuse tower and be connected with gas cooler, diffuse tower and be connected with the nitrogen induction apparatus with the natural gas portfire, gas cooler is connected with gas storage cabinet with the trip valve group by the road; Nitrogen storage tank is by pipeline and be arranged on the outer nitrogen heater of pipeline and be connected with concentrated phase pneumatic ash conveying plant I with sack cleaner; The bottom of evaporative cooler is connected with concentrated phase pneumatic ash conveying plant II with urgent ash exhauster respectively by the scraper plate machine, and concentrated phase pneumatic ash conveying plant II is connected with the cinder storehouse by the road.
The technology of the invention is:
1) cooling: the coal gas that is produced during converter smelting is entered in the blister cooler by fire door, reduces to 800 ~ 900 ℃ through blister cooler, through evaporative cooler coal gas of converter is continued to be cooled to 150 ℃ ~ 250 ℃ again;
2) thick dedusting: oarse-grained cinder dirt enters in the cinder storehouse through the scraper plate machine and the concentrated phase pneumatic ash conveying plant II of evaporative cooler bottom, regularly discharging;
3) coal gas that has a fine particle dust enters in the gas pipe through the outlet of evaporative cooler, enter dedusting in the sack cleaner that some parallel connections arrange by the road respectively at the other end of gas pipe, concentrated phase pneumatic ash conveying plant I and the pipeline of dust through being installed in the sack cleaner bottom of collecting is transported in the thin grey storehouse, regularly effluxes and transports;
4) gas exit and the pipeline of coal gas through being located at the sack cleaner upper end after purifying in the sack cleaner enters in the clean coal tracheae, enter the coal gas induced draft fan before, every 1 ~ 2 hour, detect the dustiness of coal gas, dustiness is less than 5mg/Nm in coal gas
3The time, close and lead to the coal gas transforming valve diffuse tower, the coal gas after the purification is entered in the gas cooler, cooled coal gas enters in the gas storage cabinet with the trip valve group by the road and stores, and directly uses for the user.
5) in coal gas dustiness greater than 5mg/Nm
3The time, close coal gas transforming valve towards gas cooler, coal gas after the purification is entered diffuse in the tower, diffuse through natural gas portfire and the igniting of nitrogen induction apparatus.
The beneficial effect of the invention is:
1. converter gas dry method pocket type reclaiming clean system, no sewage produces, dust content＜5mg/Nm after the gas purification
3, can directly use for the user.While coal gas induced draft fan long service life, maintenance workload is few.
2. converter gas dry method pocket type reclaiming clean system, the about 4000Pa of dust collecting process resistance, the about 21000Pa of wet method, the invention technology current consumption is about 1/3 of wet dedusting technology.
3. converter gas dry method pocket type reclaiming clean system, coal gas of converter adopts totally enclosed Pneumatic ash conveying technology, has avoided effectively that the oxygen index of coal gas is too high to be caused blast and prevent the flyash secondary pollution because of reason that mechanical means is leaked out causes.
4. converter gas dry method pocket type reclaiming clean system has removed the electric precipitator internal discharge, the danger of blasting, and operating safety is stable, and is easy to operate.
Description of drawings
Fig. 1 is the structural representation of the invention.
Embodiment
As shown in Figure 1, converter gas dry method pocket type reclaiming clean system: converter (1) is connected with blister cooler (2), blister cooler (2) is connected with evaporative cooler (3), the outlet of evaporative cooler (3) is connected with gas pipe (10), the other end of gas pipe (10) some the sack cleaners (11) that are connected in parallel by the road, concentrated phase pneumatic ash conveying plant I (12) is installed in the bottom of every sack cleaner (11), concentrated phase pneumatic ash conveying plant I (12) is connected with thin grey storehouse (14) by the road, the upper end of every sack cleaner (11) by the road with unload quick-fried device (13) and be connected, the gas exit that is located at sack cleaner (11) upper end is connected with clean coal tracheae (23) by the road, the other end of clean coal tracheae (23) through coal gas induced draft fan (15) and coal gas transforming valve (16) respectively with diffuse tower (17) and be connected with gas cooler (20), diffuse tower (17) and be connected with nitrogen induction apparatus (19) with natural gas portfire (18), gas cooler (20) is connected with gas storage cabinet (22) with trip valve group (21) by the road; Nitrogen storage tank (8) is by pipeline and be arranged on the outer nitrogen heater (9) of pipeline and be connected with concentrated phase pneumatic ash conveying plant I (12) with sack cleaner (11); The bottom of evaporative cooler (3) is connected with concentrated phase pneumatic ash conveying plant II (6) with urgent ash exhauster (5) respectively by scraper plate machine (4), and concentrated phase pneumatic ash conveying plant II (6) is connected with cinder storehouse (7) by the road.
Claims (1)
1. converter gas dry method pocket type reclaiming clean system, it is characterized in that: converter (1) is connected with blister cooler (2), blister cooler (2) is connected with evaporative cooler (3), the outlet of evaporative cooler (3) is connected with gas pipe (10), the other end of gas pipe (10) some the sack cleaners (11) that are connected in parallel by the road, concentrated phase pneumatic ash conveying plant I (12) is installed in the bottom of every sack cleaner (11), concentrated phase pneumatic ash conveying plant I (12) is connected with thin grey storehouse (14) by the road, the upper end of every sack cleaner (11) by the road with unload quick-fried device (13) and be connected, the gas exit that is located at sack cleaner (11) upper end is connected with clean coal tracheae (23) by the road, the other end of clean coal tracheae (23) through coal gas induced draft fan (15) and coal gas transforming valve (16) respectively with diffuse tower (17) and be connected with gas cooler (20), diffuse tower (17) and be connected with nitrogen induction apparatus (19) with natural gas portfire (18), gas cooler (20) is connected with gas storage cabinet (22) with trip valve group (21) by the road; Nitrogen storage tank (8) is by pipeline and be arranged on the outer nitrogen heater (9) of pipeline and be connected with concentrated phase pneumatic ash conveying plant I (12) with sack cleaner (11); The bottom of evaporative cooler (3) is connected with concentrated phase pneumatic ash conveying plant II (6) with urgent ash exhauster (5) respectively by scraper plate machine (4), and concentrated phase pneumatic ash conveying plant II (6) is connected with cinder storehouse (7) by the road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200478941U CN201971854U (en) | 2011-02-25 | 2011-02-25 | Converter gas dry method bag type recovery and purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200478941U CN201971854U (en) | 2011-02-25 | 2011-02-25 | Converter gas dry method bag type recovery and purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971854U true CN201971854U (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200478941U Expired - Lifetime CN201971854U (en) | 2011-02-25 | 2011-02-25 | Converter gas dry method bag type recovery and purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971854U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071281A (en) * | 2011-02-25 | 2011-05-25 | 辽宁环宇环保技术有限公司 | Converter gas dry method bag type recovering and purifying system and process |
| CN103332490A (en) * | 2013-06-28 | 2013-10-02 | 中冶南方工程技术有限公司 | Converter gas dry dedusting fine dust pneumatic transport system |
| CN103332458A (en) * | 2013-06-28 | 2013-10-02 | 中冶南方工程技术有限公司 | Pneumatic conveying system for removing dust and fine ash in dry process of converter gas |
| CN103388045A (en) * | 2013-06-28 | 2013-11-13 | 中冶南方工程技术有限公司 | Pneumatic transmission system for dry dedusting of thick ash in converter gas |
| CN103388046A (en) * | 2013-06-28 | 2013-11-13 | 中冶南方工程技术有限公司 | Pneumatic transmission method for dry dedusting of fine ash in converter gas |
| CN103757176A (en) * | 2014-01-26 | 2014-04-30 | 江苏博际环境工程科技有限公司 | Primary flue gas-coal gas dedusting and deep purification system of converter |
-
2011
- 2011-02-25 CN CN2011200478941U patent/CN201971854U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071281A (en) * | 2011-02-25 | 2011-05-25 | 辽宁环宇环保技术有限公司 | Converter gas dry method bag type recovering and purifying system and process |
| CN103332490A (en) * | 2013-06-28 | 2013-10-02 | 中冶南方工程技术有限公司 | Converter gas dry dedusting fine dust pneumatic transport system |
| CN103332458A (en) * | 2013-06-28 | 2013-10-02 | 中冶南方工程技术有限公司 | Pneumatic conveying system for removing dust and fine ash in dry process of converter gas |
| CN103388045A (en) * | 2013-06-28 | 2013-11-13 | 中冶南方工程技术有限公司 | Pneumatic transmission system for dry dedusting of thick ash in converter gas |
| CN103388046A (en) * | 2013-06-28 | 2013-11-13 | 中冶南方工程技术有限公司 | Pneumatic transmission method for dry dedusting of fine ash in converter gas |
| CN103388046B (en) * | 2013-06-28 | 2015-04-01 | 中冶南方工程技术有限公司 | Pneumatic transmission method for dry dedusting of fine ash in converter gas |
| CN103388045B (en) * | 2013-06-28 | 2015-04-01 | 中冶南方工程技术有限公司 | Pneumatic transmission system for dry dedusting of thick ash in converter gas |
| CN103332490B (en) * | 2013-06-28 | 2015-06-17 | 中冶南方工程技术有限公司 | Converter gas dry dedusting fine dust pneumatic transport system |
| CN103332458B (en) * | 2013-06-28 | 2015-09-02 | 中冶南方工程技术有限公司 | The thin grey air-transport system of a kind of dry dedusting of converter |
| CN103757176A (en) * | 2014-01-26 | 2014-04-30 | 江苏博际环境工程科技有限公司 | Primary flue gas-coal gas dedusting and deep purification system of converter |
| CN103757176B (en) * | 2014-01-26 | 2015-09-30 | 江苏博际环境工程科技有限公司 | A kind of converter flue gas coal gas dust removal and advanced purification system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110914 Effective date of abandoning: 20120530 |
|
| RGAV | Abandon patent right to avoid regrant |