CN203403125U - One-time flue gas ceramic fiber membrane high-temperature dry dedusting device of converter - Google Patents
One-time flue gas ceramic fiber membrane high-temperature dry dedusting device of converter Download PDFInfo
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- CN203403125U CN203403125U CN201320516721.9U CN201320516721U CN203403125U CN 203403125 U CN203403125 U CN 203403125U CN 201320516721 U CN201320516721 U CN 201320516721U CN 203403125 U CN203403125 U CN 203403125U
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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
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Abstract
The utility model discloses a one-time flue gas ceramic fiber membrane high-temperature dry dedusting device of a converter, and relates to the field of steel-making converters in the steel industry. One end of an evaporation cooling flue is connected with the converter. The other end of the evaporation cooling flue is connected with the upper end of a fog cooler. The fog cooler is connected with a ceramic membrane and a space cotton high-temperature dust remover. A dust bin is arranged below the ceramic membrane and the space cotton high-temperature dust remover. The ceramic membrane and the space cotton high-temperature dust remover are connected with a main fan through a water spraying cooling device. A diffusion chimney is connected with the main fan. A bypass valve and a switching valve are arranged between the diffusion chimney and the main fan. A gas cooler is connected with the main fan. The gas cooler is connected with a gas chamber. The two sides of the gas cooler are respectively provided with a glasses valve. According to the one-time flue gas ceramic fiber membrane high-temperature dry dedusting device, dust is easily and reliably removed, the investment is small, the one-time flue gas ceramic fiber membrane high-temperature dry dedusting device is quite suitable for the small and medium size converter, the economic benefits are remarkable, energy is saved, the water processing expense is low, and the dust utilization rate is high.
Description
Technical field:
The utility model relates to steel industry steel-making converter field, is specifically related to flue gas ceramic fiber film high-temp. dry-method dust-removal device of converter.
Background technology:
A flue gas of steel-making converter (coal gas) udst separation dry method dust, replaces domestic, external Venturi meter wet sprinkling cooling dust collecting process or the transpiration cooling of LT dry method of generally using to add electric dust-removing process.Can reduce steel-making converter one-time dedusting blower motor power 50% with the comparison of wet dedusting technique, reduce wet dedusting sludge treatment technique link simultaneously, save sludge treatment power consumption 200～300kW/h; Add electric dust-removing process with the transpiration cooling of LT dry method and relatively reduce explosion hazard, safety coefficient is high, cost saving 30%; LT dry process is foreign patent technology, and construction investment is higher, and production operation administrative skill requires high.
800,000,000 tons/year of the existing steel-making abilities of China, more than 95% are wherein top-blown oxygen steelmaking converter, and 45 tons of above converters have 800～900; These converters more than 95% adopt two civilian towers (secondary Venturi meter adds elbow separator humidification and revolves water trap) or civilian two towers (spray cooling tower add Venturi meter add elbow separator humidification revolve water trap) water spray wet dedusting technique, wet method dedusting system flow system running resistance is larger, and dedusting fan power of motor is in 1200～1500Kw left and right.
Because oxygen top blown converter steel making technique flue gas main component is CO, at Primary period, there is O2 gas to sneak into, as easy as rolling off a log blasting under the effect of electric precipitation electrical spark.This dust collecting process is suitable for the large-scale steel-making converter that operant level is relatively high, and Controlling System drops into larger.Being not suitable for penetration and promotion ，Er China current 80% in middle-size and small-size converter is the middle-size and small-size converter of 40～80t.
Utility model content:
The purpose of this utility model is to provide flue gas ceramic fiber film high-temp. dry-method dust-removal device of converter, and its dedusting is simple, reliable, there is no explosion hazard, its investment is little, is well suited for middle-size and small-size converter penetration and promotion, its remarkable in economical benefits, energy-conservation, water treatment expense is low, and dust utilization ratio is high.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises gasification cooling flue 1, mist cooler 2, ash silo 3, ceramic membrane and too cotton hot precipitator 4, spraying temp. lowering apparatus 5, main air blower 6, diffusing chimney 7, by-pass valve 8, switching valve 9, glasses valve 10, gas cooler 11, gas chamber 12, one end of gasification cooling flue 1 is connected with converter, the other end of gasification cooling flue 1 is connected with the upper end of mist cooler 2, mist cooler 2 is connected with ceramic membrane and too cotton hot precipitator 4, the below of ceramic membrane and too cotton hot precipitator 4 is provided with ash silo 3, ceramic membrane and too cotton hot precipitator 4 are connected with main air blower 6 by spraying temp. lowering apparatus 5, diffusing chimney 7 is connected with main air blower 6, and between diffusing chimney 7 and main air blower 6, be provided with by-pass valve 8 and switching valve 9, gas cooler 11 is connected with main air blower 6, gas cooler 11 is connected with gas chamber 12, the both sides of gas cooler 11 are equipped with glasses valve 10.
Described mist cooler 2 is modified to 580 ℃～350 ℃ left and right coal gas, flue-gas temperature, meets the requirement of ceramic membrane and 4 pairs of coal gas dust removal of converter performances of too cotton hot precipitator and relative humidity.
Described ash silo 3 is V-type ash silo, and the ash silo 3 of V-type is integral types with ceramic membrane and too cotton hot precipitator 4.
Principle of work of the present utility model: first 1500 ℃ of high-temperature flue gas that converter produces in converting process are trapped by movable gas hood, then pass through gasification cooling flue 1; Gasification cooling flue 1 is lowered the temperature for the first time to flue gas when reclaiming heat energy.900 ℃～1000 ℃ high-temperature flue gas (coal gas) enter the cooling reducing temperature twice that carries out flue gas of mist cooler water-spraying evaporation, trap crude particle dust simultaneously, through being the working conditions that meets ceramic membrane and too cotton hot precipitator 4, in the interior transpiration cooling of mist cooler 2, mist cooler 2 is accurately controlled injection flow rate according to flue gas heat content, to after the complete atomization of water, be cooled to 580 ℃～350 ℃ left and right, the flue gas (coal gas) after the thick dedusting of the interior transpiration cooling of mist cooler 2 enters resistant to elevated temperatures ceramic membrane and too cotton hot precipitator 4.The dust spontaneous combustion that ceramic membrane and too cotton hot precipitator 4 are collected drops to two groups of film dust-removers and forms ash silo 3, ash silo 3 has two plate turnover ash discharge valves and regularly unloads ash, the heatproof that the clean flue gas (or coal gas) after dedusting reaches main air blower 6 through spraying temp. lowering apparatus 5 require following deliver to again diffusing chimney or be recovered to gas chamber store and utilize.
At ceramic membrane or too cotton hot precipitator air-purifying chamber and dirt air chamber, be respectively equipped with differential pressure controller, when pressure reduction is greater than 3～4kPa, automatically open N
2gas blowback system automatic ash removing.N
2after gas reverse gas cleaning, ceramic membrane or too cotton filter core return to again initial resistance 2kPa left and right, continue dust removal by filtration, and the cycle changes so repeatedly, fly-ash separator non-stop run.
Ceramic membrane or too cotton trapping mechanism of filtering powder dust particle: mainly contain that direct hurdle cuts, inertial impaction and Blang spread three kinds.Wherein, compared with the sedimentation due to inertial impaction of large particle; Medium sized particle is to be filtered layer directly to tackle and be filtered; Very little particle pedesis is stronger, and Chang Yin is diffused in micropore or bumps and assembles or by hole wall, adsorbed and be collected.
The beneficial effects of the utility model: dedusting is simple, reliable, there is no explosion hazard, and its investment is little, is well suited for middle-size and small-size converter penetration and promotion, its remarkable in economical benefits, energy-conservation, water treatment expense is low, and dust utilization ratio is high.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model.
Embodiment:
With reference to Fig. 1, this embodiment by the following technical solutions: it comprises gasification cooling flue 1, mist cooler 2, ash silo 3, ceramic membrane and too cotton hot precipitator 4, spraying temp. lowering apparatus 5, main air blower 6, diffusing chimney 7, by-pass valve 8, switching valve 9, glasses valve 10, gas cooler 11, gas chamber 12, one end of gasification cooling flue 1 is connected with converter, the other end of gasification cooling flue 1 is connected with the upper end of mist cooler 2, mist cooler 2 is connected with ceramic membrane and too cotton hot precipitator 4, the below of ceramic membrane and too cotton hot precipitator 4 is provided with ash silo 3, ceramic membrane and too cotton hot precipitator 4 are connected with main air blower 6 by spraying temp. lowering apparatus 5, diffusing chimney 7 is connected with main air blower 6, and between diffusing chimney 7 and main air blower 6, be provided with by-pass valve 8 and switching valve 9, gas cooler 11 is connected with main air blower 6, gas cooler 11 is connected with gas chamber 12, the both sides of gas cooler 11 are equipped with glasses valve 10.
Described mist cooler 2 is modified to 580 ℃～350 ℃ left and right coal gas, flue-gas temperature, meets the requirement of ceramic membrane and 4 pairs of coal gas dust removal of converter performances of too cotton hot precipitator and relative humidity.
Described ash silo 3 is V-type ash silo, and the ash silo 3 of V-type is integral types with ceramic membrane and too cotton hot precipitator 4.
The principle of work of this embodiment: first 1500 ℃ of high-temperature flue gas that converter produces in converting process are trapped by movable gas hood, then pass through gasification cooling flue 1; Gasification cooling flue 1 is lowered the temperature for the first time to flue gas when reclaiming heat energy.900 ℃～1000 ℃ high-temperature flue gas (coal gas) enter the cooling reducing temperature twice that carries out flue gas of mist cooler water-spraying evaporation, trap crude particle dust simultaneously, through being the working conditions that meets ceramic membrane and too cotton hot precipitator 4, in the interior transpiration cooling of mist cooler 2, mist cooler 2 is accurately controlled injection flow rate according to flue gas heat content, to after the complete atomization of water, be cooled to 580 ℃～350 ℃ left and right, the flue gas (coal gas) after the thick dedusting of the interior transpiration cooling of mist cooler 2 enters resistant to elevated temperatures ceramic membrane and too cotton hot precipitator 4.The dust spontaneous combustion that ceramic membrane and too cotton hot precipitator 4 are collected drops to two groups of film dust-removers and forms ash silo 3, ash silo 3 has two plate turnover ash discharge valves and regularly unloads ash, the heatproof that the clean flue gas (or coal gas) after dedusting reaches main air blower 6 through spraying temp. lowering apparatus 5 require following deliver to again diffusing chimney or be recovered to gas chamber store and utilize.
At ceramic membrane or too cotton hot precipitator air-purifying chamber and dirt air chamber, be respectively equipped with differential pressure controller, when pressure reduction is greater than 3～4kPa, automatically open N
2gas blowback system automatic ash removing.N
2after gas reverse gas cleaning, ceramic membrane or too cotton filter core return to again initial resistance 2kPa left and right, continue dust removal by filtration, and the cycle changes so repeatedly, fly-ash separator non-stop run.
Ceramic membrane or too cotton trapping mechanism of filtering powder dust particle: mainly contain that direct hurdle cuts, inertial impaction and Blang spread three kinds.Wherein, compared with the sedimentation due to inertial impaction of large particle; Medium sized particle is to be filtered layer directly to tackle and be filtered; Very little particle pedesis is stronger, and Chang Yin is diffused in micropore or bumps and assembles or by hole wall, adsorbed and be collected.
The dedusting of this embodiment is simple, reliable, there is no explosion hazard, and its investment is little, is well suited for middle-size and small-size converter penetration and promotion, its remarkable in economical benefits, and energy-conservation, water treatment expense is low, and dust utilization ratio is high.
Claims (1)
1. flue gas ceramic fiber film high-temp. dry-method dust-removal device of converter, it comprises gasification cooling flue (1), mist cooler (2), ash silo (3), ceramic membrane and too cotton hot precipitator (4), spraying temp. lowering apparatus (5), main air blower (6), diffusing chimney (7), by-pass valve (8), switching valve (9), glasses valve (10), gas cooler (11), gas chamber (12) to it is characterized in that it, one end of gasification cooling flue (1) is connected with converter, the other end of gasification cooling flue (1) is connected with the upper end of mist cooler (2), mist cooler (2) is connected with ceramic membrane and too cotton hot precipitator (4), the below of ceramic membrane and too cotton hot precipitator (4) is provided with ash silo (3), ceramic membrane and too cotton hot precipitator (4) are connected with main air blower (6) by spraying temp. lowering apparatus (5), diffusing chimney (7) is connected with main air blower (6), and between diffusing chimney (7) and main air blower (6), be provided with by-pass valve (8) and switching valve (9), gas cooler (11) is connected with main air blower (6), gas cooler (11) is connected with gas chamber (12), the both sides of gas cooler (11) are equipped with glasses valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516721.9U CN203403125U (en) | 2013-08-23 | 2013-08-23 | One-time flue gas ceramic fiber membrane high-temperature dry dedusting device of converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320516721.9U CN203403125U (en) | 2013-08-23 | 2013-08-23 | One-time flue gas ceramic fiber membrane high-temperature dry dedusting device of converter |
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| CN203403125U true CN203403125U (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320516721.9U Expired - Fee Related CN203403125U (en) | 2013-08-23 | 2013-08-23 | One-time flue gas ceramic fiber membrane high-temperature dry dedusting device of converter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006672A (en) * | 2014-05-31 | 2014-08-27 | 成都易态科技有限公司 | Method for smoke discharging and dedusting of steel making electric furnace |
| CN106929626A (en) * | 2017-02-25 | 2017-07-07 | 秦皇岛同力达环保能源股份有限公司 | Coal gas of steel-smelting revolving furnace dedusting waste heat reclaiming process and system |
| CN108624736A (en) * | 2018-04-24 | 2018-10-09 | 中冶南方工程技术有限公司 | Converter gas purification and residual neat recovering system and method |
| CN117327863A (en) * | 2023-10-11 | 2024-01-02 | 陕西西北风机制造有限公司 | Cooling and dedusting device of primary dedusting fan of converter |
-
2013
- 2013-08-23 CN CN201320516721.9U patent/CN203403125U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006672A (en) * | 2014-05-31 | 2014-08-27 | 成都易态科技有限公司 | Method for smoke discharging and dedusting of steel making electric furnace |
| CN106929626A (en) * | 2017-02-25 | 2017-07-07 | 秦皇岛同力达环保能源股份有限公司 | Coal gas of steel-smelting revolving furnace dedusting waste heat reclaiming process and system |
| CN106929626B (en) * | 2017-02-25 | 2022-11-04 | 秦皇岛同力达环保能源股份有限公司 | Steelmaking converter gas dedusting waste heat recovery process and system |
| CN108624736A (en) * | 2018-04-24 | 2018-10-09 | 中冶南方工程技术有限公司 | Converter gas purification and residual neat recovering system and method |
| CN117327863A (en) * | 2023-10-11 | 2024-01-02 | 陕西西北风机制造有限公司 | Cooling and dedusting device of primary dedusting fan of converter |
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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: 20140122 Termination date: 20190823 |