CN201643896U - Dry dedusting apparatus for wet dusty gas - Google Patents
Dry dedusting apparatus for wet dusty gas Download PDFInfo
- Publication number
- CN201643896U CN201643896U CN2010201236485U CN201020123648U CN201643896U CN 201643896 U CN201643896 U CN 201643896U CN 2010201236485 U CN2010201236485 U CN 2010201236485U CN 201020123648 U CN201020123648 U CN 201020123648U CN 201643896 U CN201643896 U CN 201643896U
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- dedusting
- deduster
- dry
- conduit
- air
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Abstract
The utility model relates to a dry dedusting apparatus for wet dusty gas in the coking industry. The dry dedusting apparatus comprises a dedusting suction hood, a dedusting conduit, a deduster, a main dedusting fan, a chimney and a steam conduit. The dry dedusting apparatus is characterized in that: the inlet of the dedusting suction hood is provided with a hot air conduit, which is provided with an air heater and a mixing fan, and the air heater is connected with a fresh air inlet. The outside of the dedusting conduit is provided with heat-insulating material and adopts steam tracing. The deduster adopts a short filter bag and a high-pressure pulse blowing method to clean up dust. Compared with the prior art, the utility model has the advantages that: the utility model can effectively solves the problem that the filter bag can be stuck and that the dedusting conduit can be blocked due to dewing; the high-efficiency filtration type deduster can be effectively applied in various dedusting systems for high-moisture content dusty gas for a long time, and can come up to a high emission standard; meanwhile, the method is simple and practical, the initial investment and the operation cost are less, and popularization is easy.
Description
Technical field
The utility model relates to the dry-method dust-removal device of a kind of wet dirt gas of coking industry.
Background technology
At present, each iron and steel enterprise coke-oven plant is extensive use of CDQ technology, and during standby quenching is produced, also has considerable coke wet quenching technology in coke-oven plant independently with as dry coke quenching.Stop up causes such as cleaning shaft owing to the bonding filter bag, because of dewfall, the efficiency of dust collection of wet quenching is lower, concentration of emission≤100mg/m
3Though, satisfy concentration of emission≤120mg/m in the national existing discharge standard of air pollutants
3Requirement, but can not satisfy the tight discharge standard (general requirement≤50mg/m of factory of large enterprise self regulation at present both at home and abroad
3, indivedual requirement≤20mg/m of factory
3), be the unique channel that satisfies tight discharge standard and adopt high efficiency filter formula deduster.
Present domestic part coke-oven plant handles workshop section Jiao of wet quenching and has adopted the dry-method bag-type dust collecting device, and ubiquitous problem is:
1) moist dirt gas bonding filter bag, the deashing difficulty causes that dust remover resistance rises and causes the minimizing of dedusting air quantity and make dedusting air-suction cover place airborne dust;
2) because of dewfall, dust stops up cleaning shaft and deduster drainage line;
3) because of dewfall, the deduster inside panel is vulnerable to corrosion.
More than the problem of Cun Zaiing is particularly serious in northern coke-oven plant.
Summary of the invention
The purpose of this utility model provides a kind of dry-method dust-removal device of wet dirt gas, and this device can effectively solve the bonding filter bag, stop up the problem of cleaning shaft because of dewfall.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of dry-method dust-removal device of wet dirt gas, comprise dedusting air-suction cover, cleaning shaft, deduster, dedusting main air blower, chimney, jet chimney, it is characterized in that, be provided with hot air duct at dedusting air-suction cover inlet, hot air duct is provided with air heater and blending blower fan, and air heater is connected with fresh wind port.
Described cleaning shaft outside is provided with insulation material and adopts steam tracing.
Described deduster is for adopting the deduster of short filter bag, high-voltage pulse jetting deashing mode.
Compared with prior art, the utility model has the advantages that: can effectively solve the bonding filter bag, stop up the problem of cleaning shaft because of dewfall; Make high efficiency filter formula deduster can be applied to the dust pelletizing system of various high water capacity dirt gas long-term effectively, satisfy tight discharge standard; Simultaneously, this mode is simple, practical, and initial cost and running cost are less, is easy to promote.
Description of drawings
Fig. 1 is a kind of structure chart of dry-method dust-removal device of wet dirt gas.
Among the figure: 1-air heater, 2-blending blower fan, 3-jet chimney, 4-dedusting air-suction cover, 5-cleaning shaft, 6-insulation material, 7-deduster, 8-dedusting main air blower, 9-chimney, 10-hot air duct
The specific embodiment
See Fig. 1, a kind of dry-method dust-removal device of wet dirt gas, comprise dedusting air-suction cover 4, cleaning shaft 5, deduster 7, dedusting main air blower 8, chimney 9, jet chimney 3, air heater 1, blending blower fan 2, be provided with hot air duct 10 at dedusting air-suction cover 4 inlets, hot air duct 10 is provided with air heater 1 and blending blower fan 2, and air heater 1 is connected with fresh wind port 11.
See Fig. 1, the course of work of this device is: high water capacity dirt gas is sucked by dedusting air-suction cover 4, and the air of blending is sucked by fresh wind port 11, through air heater 1 heating, the heating agent of air heater 1 is supplied steam by jet chimney 3, the air of blending and steam are sent into hot blast in the dedusting air-suction cover 4 through hot air duct 10 by blending blower fan 2 and are mixed with water capacity dirt gas, mixed wet dirt temperature degree is higher than the dew-point temperature dew-point temperature of the humid air after the hypersaturated state humid air evaporates fully (or be higher than) of wet dirt gas, the moisture film on grit surface and other free state drop evaporate again, so, mixed wet dirt gas becomes unsaturated wet dirt gas, mixed wet dirt gas enters deduster 7 through cleaning shaft 5 and carries out filtration, purification under the swabbing action of dedusting main air blower 8, unsaturated humid air after the purification is entered in the atmosphere by chimney 9, and the dust of doing is collected by the filter bag of deduster 7, deduster 7 and anterior cleaning shaft thereof are all established insulation material 6 and steam tracings, prevent that deduster 7 and cleaning shaft 5 from stopping up cleaning shaft because of the dewfall dust that bonds.
Claims (3)
1. the dry-method dust-removal device of a wet dirt gas, comprise dedusting air-suction cover, cleaning shaft, deduster, dedusting main air blower, chimney, jet chimney, it is characterized in that, be provided with hot air duct at dedusting air-suction cover inlet, hot air duct is provided with air heater and blending blower fan, and air heater is connected with fresh wind port.
2. the dry-method dust-removal device of a kind of wet dirt gas according to claim 1 is characterized in that, described cleaning shaft outside is provided with insulation material and adopts steam tracing.
3. the dry-method dust-removal device of a kind of wet dirt gas according to claim 1 is characterized in that, described deduster is for adopting the deduster of short filter bag, high-voltage pulse jetting deashing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201236485U CN201643896U (en) | 2010-03-05 | 2010-03-05 | Dry dedusting apparatus for wet dusty gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201236485U CN201643896U (en) | 2010-03-05 | 2010-03-05 | Dry dedusting apparatus for wet dusty gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201643896U true CN201643896U (en) | 2010-11-24 |
Family
ID=43109091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201236485U Expired - Lifetime CN201643896U (en) | 2010-03-05 | 2010-03-05 | Dry dedusting apparatus for wet dusty gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201643896U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105273729A (en) * | 2014-07-07 | 2016-01-27 | 新日铁住金工程技术株式会社 | Dry quenching apparatus |
| CN107497228A (en) * | 2017-09-04 | 2017-12-22 | 成都易态科技有限公司 | Gas filtration method and gas filter plant |
| CN108273652A (en) * | 2017-12-27 | 2018-07-13 | 唐山博全实业有限公司 | A kind of Vertical Mill returning charge dust arrester installation and collecting method |
| CN109529468A (en) * | 2018-12-29 | 2019-03-29 | 江苏索普（集团）有限公司 | A kind of filtering type sulphur fog purification device |
-
2010
- 2010-03-05 CN CN2010201236485U patent/CN201643896U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105273729A (en) * | 2014-07-07 | 2016-01-27 | 新日铁住金工程技术株式会社 | Dry quenching apparatus |
| CN107497228A (en) * | 2017-09-04 | 2017-12-22 | 成都易态科技有限公司 | Gas filtration method and gas filter plant |
| CN108273652A (en) * | 2017-12-27 | 2018-07-13 | 唐山博全实业有限公司 | A kind of Vertical Mill returning charge dust arrester installation and collecting method |
| CN108273652B (en) * | 2017-12-27 | 2023-08-25 | 唐山凡卓实业有限公司 | Vertical mill returning charge dust collection device and dust collection method |
| CN109529468A (en) * | 2018-12-29 | 2019-03-29 | 江苏索普（集团）有限公司 | A kind of filtering type sulphur fog purification device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |