CN101352636B - Technique for purifying converter gas and removing dust - Google Patents
Technique for purifying converter gas and removing dust Download PDFInfo
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- CN101352636B CN101352636B CN2007101378493A CN200710137849A CN101352636B CN 101352636 B CN101352636 B CN 101352636B CN 2007101378493 A CN2007101378493 A CN 2007101378493A CN 200710137849 A CN200710137849 A CN 200710137849A CN 101352636 B CN101352636 B CN 101352636B
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Abstract
The invention discloses a converter gas purifying and dedusting process, comprising the flows as follows: the dust-contained converter gas coming out of the converter is firstly cooled by a movable chimney and then cooled by an evaporated flue so as to recover part of heat energy to generate steam; subsequently, the gas enters a spraying and cooling tower, and is cooled, rough-purified and dedusted by a plurality of internal dual-fluid spraying guns and high-pressure single-fluid spraying gun; subsequently, the gas enters a bag deduster so as to be cleanly purified and dedusted; alternatively, the gas enters the next step of spraying and cooling tower and is cooled; with the temperature of the pipeline adjusted, the gas enters a plastic burning plate deduster so as to be cleanly purified and dedusted; subsequently, the gas enters the next step of spraying and cooling tower so as to be cooled, valueless converter gas is sent to a chimney, burned and exhausted and valuable converter gas directly enters a gas cabinet. Therefore, the converter gas purifying and dedusting process has good purifying and dedusting effect on the converter gas and drains the ash dryly, and the content of the exhausted and recovered converter gas dust achieves the standard of exhausting and recovering smoke stipulated by China.
Description
Technical field
The invention belongs to metallurgical furnace and produce gas purification dedusting field, relate in particular to a kind of gas purification dust collecting process of converter.
Background technology
The processing of coal gas of converter and recovery have two kinds of method in common, the dry cleaning dust collecting process and the converter coal gas wet-type process for purifying of coal gas of converter Germany LURGI and Thyssen Aktiengesellschaft's cooperative development.
Coal gas of converter Germany LURGI has significant advantage with the dry dust removal technology of Thyssen Aktiengesellschaft's cooperative development than converter coal gas wet-type process for purifying, is able to all over the world promote.The dry cleaning dust collecting process of converter current coal gas Germany LURGI and Thyssen Aktiengesellschaft's cooperative development; Coal gas of converter gets into spray cooling tower from converter; Get into the dry electric precipitation device again, after supersaturation coal gas spray tank cools, send into converter gas cabinet at last.The effect of purifying converter gas and removing dust is better, major defect: one-time investment is higher, often in several hundred million first people, and the spray cooling tower wall that wets, and operation and maintenance are had relatively high expectations.The saturated coal gas water spray type of cooling is adopted in coal gas cooling behind the electric cleaner, consumes a large amount of water.
The major defect of converter coal gas wet-type process for purifying: the one, the exhaust gas dust content after handling is still very high, is difficult to reach the standard limit of smog release (100 milligrams/cubic metre) of national regulation, and the 2nd, SR is big especially, up to 20-26 kPa, causes power consumption higher.The 3rd, water consumption is big especially, increases the disposal cost of water.
Summary of the invention:
The object of the present invention is to provide a kind of technique for purifying converter gas and removing dust, it is effective to make it have a purifying and dedusting, and the coal gas of converter of discharge reaches the discharging and the recovery standard of the coal gas dust-laden of national regulation in discharging dustiness when recycling; Reclaim coal gas of converter; And the process equipment cost is low, processing ease, and maintenance cost and water consumption are few; Practice thrift the facility and the floor space of supply water, the facility that conserve water is handled and the advantage of floor space.
The present invention realizes through following technical scheme for realizing above-mentioned purpose:
The about 1500-1600 ℃ of coal gas of converter that gives off from converter (1); Be cooled to about 800-1000 ℃ through movable gas hood (13) and gasification cooling flue (14); Get into spray cooling tower (2); Through being installed in 6-20 two-fluid spray gun (steam or nitrogen are done carrier) or the gun spraying of high pressure single fluid in the tower, cool and thick dedusting, the coal gas of converter temperature that goes out spray cooling tower (2) is controlled at 150-200 ℃; Get into sack cleaner (4); Smart purifying and dedusting; Or get into the spray cooling tower (3) that 4-15 two-fluid spray gun (nitrogen is done carrier) or high pressure single fluid spray gun are installed and cool, dehydrator dewaters, and mixes with the coal gas of converter of bypass process; Mix the back temperature and be controlled in the 80-100 ℃ of scope, get into the smart purifying and dedusting of sintered plate deduster (6); Sack cleaner (4) is used alternatingly with sintered plate deduster (6); Getting into the spray cooling tower (8) that 5-20 two-fluid spray gun (nitrogen is done carrier) or high pressure single fluid spray gun are installed again cools to 50-55 ℃; Get into dehydrator (9) dehydration; See off by frequency control blower fan (11); Do not have the coal gas of value to deliver to chimney (12) and burn discharging, have and utilize the coal gas that is worth to send into converter gas cabinet (7).
The dry ash that produces from spray cooling tower (2), sack cleaner (4) and sintered plate deduster (6), is discharged into and adorns grey car and transport to ash bucket through conveyor delivery; Delivering to water treatment field (10) from spray cooling tower (3) with the cooling water of spray cooling tower (8) generation handles.
Technique for purifying converter gas and removing dust of the present invention has following advantage and good effect:
The present invention does ash discharge owing to adopt the combination purification dedusting of spray cooling tower (2), sack cleaner (4) and sintered plate deduster (6), and purifying and dedusting is effective, and discharging and the coal gas of converter dust content that reclaims reach the fume emission and the recovery standard of national regulation.
The present invention has obvious energy-saving effect because blower motor adopts frequency control.
The present invention has improved the utilization rate of water owing in spray cooling tower (3) and spray cooling tower (8), adopted two-fluid aerosol spray gun (nitrogen is made carrier) or high pressure single fluid spray gun, has reduced the disposal cost of water and the investment cost of drainage facility.
Description of drawings
Figure one is the technique for purifying converter gas and removing dust flow process
Embodiment:
The about 1500-1600 ℃ of coal gas of converter that gives off from converter (1); Be cooled to about 800-1000 ℃ through movable gas hood (13) and gasification cooling flue (14); Get into spray cooling tower (2); Through being installed in 6-20 two-fluid spray gun (steam or nitrogen are done carrier) or the gun spraying of high pressure single fluid in the tower, cool and thick dedusting, the coal gas of converter temperature that goes out spray cooling tower (2) is controlled at 150-200 ℃; Get into sack cleaner (4); Smart purifying and dedusting; Or get into the spray cooling tower (3) that 4-15 two-fluid spray gun (nitrogen is done carrier) or high pressure single fluid spray gun are installed and cool, dehydrator dewaters, and mixes with the coal gas of converter of bypass process; Mix the back temperature and be controlled in the 80-100 ℃ of scope, get into the smart purifying and dedusting of sintered plate deduster (6); Sack cleaner (4) is used alternatingly with sintered plate deduster (6); Getting into the spray cooling tower (8) that 5-20 two-fluid spray gun (nitrogen is done carrier) or high pressure single fluid spray gun are installed again cools to 50-55 ℃; Get into dehydrator (9) dehydration; See off by frequency control blower fan (11); Do not have the coal gas of value to deliver to chimney (12) and burn discharging, have and utilize the coal gas that is worth to send into converter gas cabinet (7).
The dry ash that produces from spray cooling tower (2), sack cleaner (4) and sintered plate deduster (6), is discharged into and adorns grey car and transport to ash bucket through conveyor delivery; Delivering to water treatment field (10) from spray cooling tower (3) with the cooling water of spray cooling tower (8) generation handles.
Claims (2)
1. technique for purifying converter gas and removing dust; 1500-1600 ℃ the coal gas of converter that gives off from converter (1); Be cooled to 800-1000 ℃ through movable gas hood (13) and gasification cooling flue (14), get into first spray cooling tower (2), through being installed in 6-20 two-fluid spray gun or the gun spraying of high pressure single fluid of adopting steam or nitrogen to do carrier in the tower; Cool and thick dedusting, the coal gas of converter temperature that goes out first spray cooling tower (2) is controlled at 150-200 ℃; Get into sack cleaner (4); Smart purifying and dedusting; Or get into and to be equipped with 4-15 and to adopt nitrogen to make the two-fluid spray gun of carrier or second spray cooling tower (3) of high pressure single fluid spray gun cools, dehydrator dewaters, and mixes with the coal gas of converter of bypass process; Mix the back temperature and be controlled in the 80-100 ℃ of scope, get into the smart purifying and dedusting of sintered plate deduster (6); Sack cleaner (4) is used alternatingly with sintered plate deduster (6); Get into again and be equipped with that 5-20 employing nitrogen is made the two-fluid spray gun of carrier or the 3rd spray cooling tower (8) of high pressure single fluid spray gun cools to 50-55 ℃; Get into dehydrator (9) dehydration; See off by frequency control blower fan (11); Do not have the coal gas of value to deliver to chimney (12) and burn discharging, have and utilize the coal gas that is worth to send into converter gas cabinet (7).
2. technique for purifying converter gas and removing dust according to claim 1 is characterized in that, the dry ash that produces from first spray cooling tower (2), sack cleaner (4) and sintered plate deduster (6), is discharged into and adorns grey car and transport to ash bucket through conveyor delivery; Delivering to water treatment field (10) from second spray cooling tower (3) with the cooling water of the 3rd spray cooling tower (8) generation handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101378493A CN101352636B (en) | 2007-07-25 | 2007-07-25 | Technique for purifying converter gas and removing dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101378493A CN101352636B (en) | 2007-07-25 | 2007-07-25 | Technique for purifying converter gas and removing dust |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101352636A CN101352636A (en) | 2009-01-28 |
| CN101352636B true CN101352636B (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101378493A Expired - Fee Related CN101352636B (en) | 2007-07-25 | 2007-07-25 | Technique for purifying converter gas and removing dust |
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| CN (1) | CN101352636B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812562B (en) * | 2010-04-21 | 2011-08-17 | 周建安 | Safe and high-efficiency recovery method for converter gas |
| CN102296979B (en) * | 2010-06-22 | 2013-09-25 | 武汉高科佳诚动力科技有限公司 | Dedusting and dehydrating process of deep condensation to gas by utilizing natural cold source |
| CN102382932B (en) * | 2011-10-31 | 2013-05-01 | 中冶南方工程技术有限公司 | Gas cooling technology used for dry dedusting for converter gas |
| CN103816735B (en) * | 2014-02-28 | 2015-12-02 | 成都易态科技有限公司 | Gas filter system and device |
| CN105986056A (en) * | 2015-02-04 | 2016-10-05 | 北京博鹏蓝天环保设备有限公司 | Technology for utilizing sintered plate dust remover in converter wet dust removal system |
| CN108379955B (en) * | 2018-05-03 | 2020-11-27 | 桐乡市舒适家具有限公司 | Dust collection channel mechanism of double-barrel cloth bag dust collector |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144848A (en) * | 1996-09-13 | 1997-03-12 | 冶金工业部钢铁研究总院 | Whole-dry type dust removing device and method for blast furnace gas |
| CN2905187Y (en) * | 2006-04-29 | 2007-05-30 | 江苏科林集团有限公司 | Converter coal gas dry-process purifying bag type dust collector |
-
2007
- 2007-07-25 CN CN2007101378493A patent/CN101352636B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1144848A (en) * | 1996-09-13 | 1997-03-12 | 冶金工业部钢铁研究总院 | Whole-dry type dust removing device and method for blast furnace gas |
| CN2905187Y (en) * | 2006-04-29 | 2007-05-30 | 江苏科林集团有限公司 | Converter coal gas dry-process purifying bag type dust collector |
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| CN101352636A (en) | 2009-01-28 |
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Owner name: JIA YING Free format text: FORMER OWNER: SONG HUIJIANG Effective date: 20090626 |
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