CN103845979A - Gas dedusting device - Google Patents
Gas dedusting device Download PDFInfo
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- CN103845979A CN103845979A CN201210493927.4A CN201210493927A CN103845979A CN 103845979 A CN103845979 A CN 103845979A CN 201210493927 A CN201210493927 A CN 201210493927A CN 103845979 A CN103845979 A CN 103845979A
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- discharge duct
- cylindrical shell
- wall
- cylinder body
- gas
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Abstract
The invention provides a gas dedusting device which comprises a cylinder body. The top part of the cylinder body is provided with a gas inlet, and the lower part of the cylinder body is provided with an ash discharging port; a gas discharging pipeline is arranged in the cylinder body, and one side of the upper end of the gas discharging pipeline is provided with a gas discharging port communicated with the exterior of the cylinder body; the gas discharging pipeline is provided with a secondary settlement bin, and the inner diameter of the secondary settling bin is greater than the inner diameter of the gas discharging pipeline; the inner peripheral wall of the middle part of the cylinder body is provided with a funnel-shaped wind guiding plate. Compared with a conventional gravity deduster, the gas dedusting device has the dust removal efficiency greatly improved, is longer in service life, has no need of frequent shunting for maintenance, and does not affect continuous production of a shaft furnace.
Description
Technical field
The present invention relates to a kind of blast furnace gas dust remover, specifically a kind of dedusting equipment.
Background technology
Most domestic ironmaking enterprise all adopts gravitational precipitator when blast furnace roof raw coke oven gas is carried out to thick dedusting, that gravitational precipitator has advantages of is reliable, maintenance is little, but the efficiency of dust collection of gravitational precipitator is low, thereafter when supporting dry-dedusting system moves, can cause the cloth bag essence cleaner load of purified gas large, cloth bag is low service life.Minority ironmaking enterprise adopts cyclone dust collectors in the time that blast furnace roof raw coke oven gas is carried out to thick dedusting, and cyclone dust collectors are compared with gravitational precipitator, and efficiency of dust collection is higher, but cyclone dust collectors self are shorter service life, need often to shut down and safeguard, affect blast furnace and produce continuously.
Summary of the invention
The object of this invention is to provide a kind of dedusting equipment, it is compared with existing gravitational precipitator, and efficiency of dust collection significantly improves, and service life is longer, does not need often to shut down and safeguard, does not affect blast furnace and produces continuously.
The present invention for achieving the above object, be achieved through the following technical solutions: comprise cylindrical shell, air inlet is offered at cylindrical shell top, ash discharging hole is offered in cylindrical shell bottom, discharge duct is installed in cylindrical shell, and the one side setting of discharge duct upper end and the outside exhaust outlet being communicated with of cylindrical shell, install secondary settlement storehouse on discharge duct, the internal diameter in secondary settlement storehouse is greater than the internal diameter of discharge duct, and cylindrical shell middle part internal perisporium is installed infundibulate wind deflector.Between discharge duct outer wall and cylinder inboard wall, swirl vane is installed.Conical wind-guiding cap is installed on discharge duct top.Discharge duct outer wall border arranges guide shell, and guide shell end face is connected with discharge duct outer wall border, between guide shell lateral wall and cylinder inboard wall, swirl vane is installed.Cylinder inboard wall, infundibulate wind deflector inwall, discharge duct inner and outer wall, secondary settlement storehouse inner and outer wall all arrange acid-proof wear-proof coating.Swirl vane outer surface arranges acid-proof wear-proof coating.Wind-guiding cap outer surface arranges acid-proof wear-proof coating.Guide shell outer wall arranges acid-proof wear-proof coating.
The invention has the advantages that: adopt two-stage dedusting structure, efficiency of dust collection significantly improves, and service life is longer, do not need often to shut down and safeguard, do not affect blast furnace and produce continuously, corrosion-resistant and anti-wear performance is strong etc.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
A kind of dedusting equipment of the present invention comprises cylindrical shell 1, air inlet 2 is offered at cylindrical shell 1 top, ash discharging hole 3 is offered in cylindrical shell 1 bottom, the interior installation discharge duct 4 of cylindrical shell 1, discharge duct 4 upper end one side settings and the outside exhaust outlet 8 being communicated with of cylindrical shell 1, secondary settlement storehouse 5 is installed on discharge duct 4, and the internal diameter in secondary settlement storehouse 5 is greater than the internal diameter of discharge duct 4, and cylindrical shell 1 middle part internal perisporium is installed infundibulate wind deflector 6.Infundibulate wind deflector 6 upsides are a settling bin 10, infundibulate wind deflector 6 downsides are dust compartment 11, when installation, air inlet 2 is connected with blast furnace raw gas pipeline, blast furnace raw gas enters settling bin 10 one time, in raw coke oven gas, contained big dust particle falls into dust compartment 11, realize one-time dedusting, raw coke oven gas after one-time dedusting enters from discharge duct 4 lower ends, during through secondary settlement storehouse 5, the flow velocity of air-flow reduces, in air-flow, remaining most dust can be settled down to dust compartment 11 under the effect of gravity, realize final dusting, raw coke oven gas after final dusting is discharged from exhaust outlet 8, enter thin dedusting link.Infundibulate wind deflector 6 can produce barrier effect to air-flow, makes dust and flow separation, can also prevent counter the flowing in a settling bin 10 of dust in dust compartment 11 simultaneously.The present invention adopts two-stage dedusting structure, and compared with existing gravitational precipitator product, efficiency of dust collection significantly improves, and service life is longer, does not need often to shut down and safeguard, does not affect blast furnace and produces continuously.
The present invention, in order further to promote efficiency of dust collection, can install swirl vane 7 between discharge duct 4 outer walls and cylindrical shell 1 inwall.When air-flow is when the swirl vane 7, can produce strong eddy flow, dust can be concentrated and is distributed in air-flow periphery due to centrifugal action in eddy flow, is easy to sedimentation, is conducive to strengthen efficiency of dust collection.
The present invention can shunt when making raw coke oven gas air-flow enter cylindrical shell 1 uniformly, and conical wind-guiding cap 9 can be installed on discharge duct 4 tops.
The present invention, in order to increase the eddy flow effect of air-flow, can arrange guide shell 12 in discharge duct 4 outer wall borders, and guide shell 12 end faces are connected with discharge duct 4 outer wall borders, between guide shell 12 lateral walls and cylindrical shell 1 inwall, swirl vane 7 are installed.Guide shell 12 can reduce the draught area at swirl vane 7 places, increases air velocity, strengthens eddy flow effect.
The present invention is in order to strengthen corrosion-resistant and anti-wear performance, increase the service life, can acid-proof wear-proof coating be all set at cylindrical shell 1 inwall, infundibulate wind deflector 6 inwalls, discharge duct 4 inner and outer walls, secondary settlement storehouse 5 inner and outer walls, swirl vane 7 outer surfaces, wind-guiding cap 9 outer surfaces and guide shell 12 outer walls.
Claims (6)
1. a dedusting equipment, it is characterized in that: comprise cylindrical shell (1), air inlet (2) is offered at cylindrical shell (1) top, ash discharging hole (3) is offered in cylindrical shell (1) bottom, discharge duct (4) is installed in cylindrical shell (1), the one side setting of discharge duct (4) upper end and the outside exhaust outlet (8) being communicated with of cylindrical shell (1), the upper secondary settlement storehouse (5) of installing of discharge duct (4), the internal diameter in secondary settlement storehouse (5) is greater than the internal diameter of discharge duct (4), cylindrical shell (1) middle part internal perisporium is installed infundibulate wind deflector (6), between discharge duct (4) outer wall and cylindrical shell (1) inwall, swirl vane (7) is installed, conical wind-guiding cap (9) is installed on discharge duct (4) top.
2. a kind of dedusting equipment according to claim 2, it is characterized in that: discharge duct (4) outer wall border arranges guide shell (12), guide shell (12) end face is connected with discharge duct (4) outer wall border, between guide shell (12) lateral wall and cylindrical shell (1) inwall, swirl vane (7) is installed.
3. a kind of dedusting equipment according to claim 1 and 2, is characterized in that: cylindrical shell (1) inwall, infundibulate wind deflector (6) inwall, discharge duct (4) inner and outer wall, secondary settlement storehouse (5) inner and outer wall all arrange acid-proof wear-proof coating.
4. a kind of dedusting equipment according to claim 1 and 2, is characterized in that: swirl vane (7) outer surface arranges acid-proof wear-proof coating.
5. a kind of dedusting equipment according to claim 1, is characterized in that: wind-guiding cap (9) outer surface arranges acid-proof wear-proof coating.
6. a kind of dedusting equipment according to claim 2, is characterized in that: guide shell (12) outer wall arranges acid-proof wear-proof coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210493927.4A CN103845979A (en) | 2012-11-28 | 2012-11-28 | Gas dedusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210493927.4A CN103845979A (en) | 2012-11-28 | 2012-11-28 | Gas dedusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103845979A true CN103845979A (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210493927.4A Pending CN103845979A (en) | 2012-11-28 | 2012-11-28 | Gas dedusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103845979A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328234A (en) * | 2014-11-24 | 2015-02-04 | 中冶赛迪工程技术股份有限公司 | Rough collection device and method for gas and dust from blast furnace |
| CN107446625A (en) * | 2017-09-08 | 2017-12-08 | 新奥科技发展有限公司 | A kind of gasification furnace |
| CN108237023A (en) * | 2016-12-25 | 2018-07-03 | 况保宗 | Eddy flow low speed deduster |
| CN110702299A (en) * | 2019-09-17 | 2020-01-17 | 郭存洪 | Intelligent sensor |
-
2012
- 2012-11-28 CN CN201210493927.4A patent/CN103845979A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328234A (en) * | 2014-11-24 | 2015-02-04 | 中冶赛迪工程技术股份有限公司 | Rough collection device and method for gas and dust from blast furnace |
| CN108237023A (en) * | 2016-12-25 | 2018-07-03 | 况保宗 | Eddy flow low speed deduster |
| CN108237023B (en) * | 2016-12-25 | 2021-07-27 | 况保宗 | Cyclone low-speed dust remover |
| CN107446625A (en) * | 2017-09-08 | 2017-12-08 | 新奥科技发展有限公司 | A kind of gasification furnace |
| CN110702299A (en) * | 2019-09-17 | 2020-01-17 | 郭存洪 | Intelligent sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |