CN201168519Y - High temperature coal gas bag-type dust remover - Google Patents
High temperature coal gas bag-type dust remover Download PDFInfo
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- CN201168519Y CN201168519Y CNU2008200566796U CN200820056679U CN201168519Y CN 201168519 Y CN201168519 Y CN 201168519Y CN U2008200566796 U CNU2008200566796 U CN U2008200566796U CN 200820056679 U CN200820056679 U CN 200820056679U CN 201168519 Y CN201168519 Y CN 201168519Y
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- high temperature
- dust
- gas
- coal gas
- filter bag
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Abstract
The utility model relates to a high temperature gas bag type dust collector which comprises a cylindrical dust collector shell, and a clean room, a card, a filter bag, a keel, an air guide plate, a filtration chamber, a dust hopper, a heat tracing device and a heat preservation device are arranged in the shell. The top of the shell is provided with a bleeding device and a clean gas outlet, and the bottom of the shell is provided with a dust unloading valve and a dust conveyer. A pulse nitrogen injection device and a dust gas inlet are arranged on the shell. The filter bag is supported by the keel, the air guide plate is arranged below the filter bag, and the filtration chamber is arranged below the air guide plate. The high temperature gas bag type dust collector is one of main equipments in a high temperature gas bag type dust-removal system (a BG dry process dust-removal system for short), has all advantages needed by the BG dry process dust-removal system. The high temperature gas bag type dust collector has the advantages of high efficiency of dust collection, low running resistance and energy consumption, no system pollution and second pollution to water, convenient equipment maintenance and low cost, realizes the gas dust removal and recovery and converter negative energy steel smelting.
Description
Technical field
The utility model relates to the high-temperature gas duster in the steelmaking processes such as converter of metallurgical steel mill and furnace of calcium carbide, particularly a kind of sack cleaner that is used for high-temperature gas duster.
Background technology
At present steel mill's converter dust-removing reclaims process and mainly contains two kinds of wet method (being called for short OG) and dry method (abbreviation LT); The furnace of calcium carbide coal gas of high temperature mainly adopts wet dedusting.
The converter gas wet dust arrester that with OG is representative mainly is made up of two-stage dust removal device and dewater unit.The first order adopts sizing or manual path transfer overflow Venturi tube (being called for short a literary composition) or water cooling tower, and it act as the cooling and the thick dedusting of converter raw coke oven gas.The second level is adopted automatic path transfer Venturi tube (being called for short two literary compositions) or is adopted circumferential weld washer (being called for short RSW), and it act as the smart dedusting of raw coke oven gas.Dewater unit is used for the coal gas moisture of the system that removes.China has a considerable amount of coal gas of converter OG system to exist following situation to some extent: (coal gas discharging dust content surpasses 100mg/Nm to high dust emission
3); High equipment operation energy consumption (system's running resistance surpasses 20kPa); High operation and maintenance cost; (average ton steel coal-gas recovering amount is only at 50mg/Nm for low ton steel coal-gas recovering
3About).
The converter gas dry method dust arrester that with LT is representative mainly is made up of wet cooling tower, electrostatic precipitator and gas cooler etc.Though and the LT dry-dedusting system obviously is being better than OG aspect coal gas dust removal and the system energy consumption, but because of the LT method needs from external introduction, cost of investment is higher, the electrostatic precipitator fault is more, and reasons such as equipment tackling key problem and operating experience, influenced and popularize, the whole nation only has block converter more than 20, the whole world to have the coal gas of block converter more than 60 to adopt the LT dry-dedusting system at present.
Reclaim the weak point of technology OG and LT in order to overcome steel mill's coal gas of converter dedusting, proposed BG dry method dust new technology, implement this novel dedusting process, need to develop a kind of house-bag duster for high temperature that is used for coal gas of converter for cooperating.
The utility model content
Task of the present utility model provides a kind of coal gas of high temperature sack cleaner, and it has overcome the weak point of coal gas of converter dedusting recovery technology OG and LT, has solved and the supporting dust arrester problem of BG dry method dust new technology.
Technical solution of the present utility model is as follows:
A kind of coal gas of high temperature sack cleaner, it comprises deduster housing cylindraceous, clean room, card, filter bag, keel, gas-flow deflector, filter chamber, ash bucket and companion's heat and attemperator are housed in the described housing, in case top bleeding device and purified gas outlet are set, settle unloading valve and ash conveying device at housing bottom, installing pulse nitrogen injection device and dusty gas inlet on housing; Described filter bag is supported by keel, and gas-flow deflector is installed in the below of filter bag, the filter chamber then be placed in gas-flow deflector below.
Coal gas of high temperature sack cleaner of the present utility model is one of main equipment in the coal gas of high temperature bag-type dust removing system (being called for short the BG dry-dedusting system), has the required every advantage of BG dry-dedusting system, its efficiency of dust collection height, running resistance and energy consumption are low, do not have the secondary pollution problem of system jams and water.It had both met strict environmental protection requirement, as one of main equipment in the BG dry-dedusting system, had realized the coal gas dust removal recovery again, and the realization negative converter can be made steel.
Filter bag in the utility model adopts special high temperature resistant (more than 230 ℃) filtrate to make, the efficiency of dust collection height, and coal gas discharging dust content is stabilized in 10mg/Nm
3Below; Operation energy consumption is low, and resistance is below 1800Pa; The secondary pollution problem that does not have system jams and water, plant maintenance is convenient and expense is low; Sack cleaner can select for use Duo Tai to be arranged in parallel with standby, to realize the needs of indivedual deduster off-line maintenance.
Description of drawings
Accompanying drawing is the structural representation of a kind of coal gas of high temperature sack cleaner of the present utility model.
The specific embodiment
Referring to accompanying drawing, a kind of coal gas of high temperature sack cleaner of the present utility model is equipped with deduster housing cylindraceous, and clean room 4, card 6, filter bag 7, keel 8, gas-flow deflector 9, filter chamber 10, ash bucket 12 and companion's heat and attemperator 13 are housed in the housing.Installing companion heat is in order to prevent ash bucket 12 dewfall, to add insulation at ash bucket 12 outer walls simultaneously with attemperator 13.
In case top bleeding device 2 and purified gas outlet 3 are set.For preventing the coal gas detonation, also be equipped with in case top and unload quick-fried valve 1.Settle unloading valve 16 and ash conveying device 17 at housing bottom.In order to guarantee that device security especially guarantees to enter deduster maintainer's safety, also is equipped with gas displacement device 15 at housing bottom.Installing pulse nitrogen injection device 5 and dusty gas inlet 11 on housing.
Filter bag 7 is supported by keel 8.Gas-flow deflector 9 is installed in the below of filter bag 7,10 of filter chambers be placed in gas-flow deflector 9 below.Filter bag 7 is made by the filtrate of special ability high temperature more than 230 ℃.
12 places are provided with nitrogen big gun 14 at ash bucket, in order to prevent ash bucket dust ramming material.
When coal gas of high temperature sack cleaner of the present utility model is worked, be controlled in about 230 ℃ from the gas temperature after thick dedusting of converter dry-dedusting system and the cooling, coal gas of high temperature enters house-bag duster for high temperature by pipeline.When dust-laden coal gas passed in bag by filter bag is outer equably, dust was trapped in outer surface by filter bag and purified gas passes through filter bag.Along with thickening of filter bag outer surface dust layer, the deduster running resistance rises, and prescribes a time limit when resistance reaches going up of setting value, and control system starting impulse nitrogen injection device carries out automatic ash removing, and ash bucket was discharged by pneumatic ash conveying plant bottom dust was stripped from and is fallen into.
Coal gas of high temperature sack cleaner of the present utility model is applicable to the high-temperature gas duster in the steelmaking processes such as metallurgical steel mill converter, also is applicable to dry method coal gas dust removals such as converter and furnace of calcium carbide.
Coal gas of high temperature sack cleaner of the present utility model is particularly useful for the technological transformation to existing coal gas of converter LT system, mainly take following measures: adopt the electrostatic precipitator in high temperature resistant (more than 230 ℃) sack cleaner replacement LT system, heighten the Outlet Gas Temperature of existing wet cooling tower, revise the control function of system etc.
Coal gas of high temperature sack cleaner of the present utility model is also applicable to selecting the overall technique transformation of coal gas of converter OG system for use, mainly take following measures: adopt the dry-method bag-type dust pelletizing system, with two literary compositions or the RSW in the house-bag duster for high temperature replacement OG dust pelletizing system, change the lower blower fan apparatus of power, revise the control function of system etc.
Coal gas discharging dust content behind enforcement the utility model is at 10mg/Nm
3Below, running resistance is below 1800Pa.
Certainly, those skilled in the art in the present technique field will be appreciated that, the foregoing description only is to be used for illustrating the utility model, and be not with opposing qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in the scope of the utility model claim conversion, the modification of the foregoing description.
Claims (5)
1. coal gas of high temperature sack cleaner, it comprises deduster housing cylindraceous, it is characterized in that, clean room, card, filter bag, keel, gas-flow deflector, filter chamber, ash bucket and companion's heat and attemperator are housed in the described housing, in case top bleeding device and purified gas outlet are set, settle unloading valve and ash conveying device at housing bottom, installing pulse nitrogen injection device and dusty gas inlet on housing; Described filter bag is supported by keel, and gas-flow deflector is installed in the below of filter bag, the filter chamber then be placed in gas-flow deflector below.
2. coal gas of high temperature sack cleaner according to claim 1 is characterized in that, described case top is equipped with unloads quick-fried valve.
3. coal gas of high temperature sack cleaner according to claim 1 is characterized in that, described ash bucket place is provided with the nitrogen big gun.
4. coal gas of high temperature sack cleaner according to claim 1 is characterized in that described housing bottom is equipped with the gas displacement device.
5. coal gas of high temperature sack cleaner according to claim 1 is characterized in that described filter bag is made by high temperature resistance filtration material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200566796U CN201168519Y (en) | 2008-03-28 | 2008-03-28 | High temperature coal gas bag-type dust remover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200566796U CN201168519Y (en) | 2008-03-28 | 2008-03-28 | High temperature coal gas bag-type dust remover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201168519Y true CN201168519Y (en) | 2008-12-24 |
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ID=40207572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200566796U Expired - Lifetime CN201168519Y (en) | 2008-03-28 | 2008-03-28 | High temperature coal gas bag-type dust remover |
Country Status (1)
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100991A (en) * | 2009-12-22 | 2011-06-22 | 贵阳铝镁设计研究院 | Chlorine filtering equipment |
| CN102183155A (en) * | 2011-03-25 | 2011-09-14 | 宝钢工程技术集团有限公司 | Smoke high-temperature dust removal and steam and coal gas recovery system and method for calcium carbide furnace |
| CN102389672A (en) * | 2011-10-19 | 2012-03-28 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN103834755A (en) * | 2014-02-28 | 2014-06-04 | 中冶南方工程技术有限公司 | Pulverized coal preheating technique of blast furnace coal injection system |
| CN105273729A (en) * | 2014-07-07 | 2016-01-27 | 新日铁住金工程技术株式会社 | Dry quenching apparatus |
| CN112370881A (en) * | 2020-10-31 | 2021-02-19 | 山东省药用玻璃股份有限公司 | Nitrogen protection device of coal gas cloth bag diffusion system |
-
2008
- 2008-03-28 CN CNU2008200566796U patent/CN201168519Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102100991A (en) * | 2009-12-22 | 2011-06-22 | 贵阳铝镁设计研究院 | Chlorine filtering equipment |
| CN102183155A (en) * | 2011-03-25 | 2011-09-14 | 宝钢工程技术集团有限公司 | Smoke high-temperature dust removal and steam and coal gas recovery system and method for calcium carbide furnace |
| CN102389672A (en) * | 2011-10-19 | 2012-03-28 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN102389672B (en) * | 2011-10-19 | 2015-06-03 | 无锡双雄通用机械有限公司 | Flame-proof anti-explosion anticorrosion bag type dust-removing device for drying brown coal |
| CN103834755A (en) * | 2014-02-28 | 2014-06-04 | 中冶南方工程技术有限公司 | Pulverized coal preheating technique of blast furnace coal injection system |
| CN105273729A (en) * | 2014-07-07 | 2016-01-27 | 新日铁住金工程技术株式会社 | Dry quenching apparatus |
| CN112370881A (en) * | 2020-10-31 | 2021-02-19 | 山东省药用玻璃股份有限公司 | Nitrogen protection device of coal gas cloth bag diffusion system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOSTEER ENGINEERING TECHNOLOGY GROUP CO., LTD Free format text: FORMER OWNER: BAOGANG ENGINEERING TECHN CO., LTD., SHANGHAI Effective date: 20100722 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100722 Address after: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee after: Baosteel Engeneering &Technology Group Co., Ltd. Address before: 201900 Shanghai city Baoshan District Tieli Road No. 2510 Patentee before: Shanghai Baogang Engineering Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081224 |
|
| CX01 | Expiry of patent term |