CN207243917U - A kind of blast furnace gas diffusing dust-extraction unit - Google Patents
A kind of blast furnace gas diffusing dust-extraction unit Download PDFInfo
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- CN207243917U CN207243917U CN201721156644.5U CN201721156644U CN207243917U CN 207243917 U CN207243917 U CN 207243917U CN 201721156644 U CN201721156644 U CN 201721156644U CN 207243917 U CN207243917 U CN 207243917U
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Abstract
A kind of blast furnace gas diffusing dust-extraction unit is the utility model is related to, belongs to metallurgical industry field.The device includes cyclone dust collectors, gas bleeding valve control valve, diffuses pipeline, ash discharge pipeline, water supply pipe, ash-valve and solid-holding device.Cyclone dust collectors are installed on and diffuse on pipeline, cyclone entrance end is connected with diffuse channel, cyclone dust collectors arrival end is connected by diffuse channel with gas bleeding valve control valve, gas bleeding valve control valve arrival end is connected by diffuse channel with coal gas five-way ball, ash-valve is installed on the removing ash pipeline of cyclone dust collectors lower part, removing ash pipeline accesses solid-holding device, is provided with water supply valve group and force (forcing) pump on water supply pipe, water supply pipe end is provided with nozzle.The utility model has the advantages that environmentally friendly, simple in structure, small investment, easy to operate, the blast furnace roof occurred under the key equipments such as blast furnace more air change outlet, shutdown maintenance, normal damping down maintenance situation diffuses exhaust gas, it is discharged into again in air after by this dust-extraction unit, reduces pollution of the dust to environment.
Description
Technical field
The utility model belongs to metallurgical industry field, is related to a kind of blast furnace gas diffusing dust-extraction unit.
Background technology
Steel and iron industry is one of China's main sewerage industry, according to environmental statistics annual report in 2015, its sulfur dioxide, nitrogen oxygen
Compound, smoke-dust discharge capacity are respectively 173.6 ten thousand tons, 104.3 ten thousand tons, 357.2 ten thousand tons, account for focal investigation industrial enterprise discharge capacity
Ratio be respectively 12.4%, 9.6%, 32.2%.At present, China's steel industry has quite a few source of atmospheric pollution with no group
The form discharge knitted is changed into and discharges in a organized way, it is necessary to collected.See with practical conditions, most TECHNIQUE TO LARGE INTEGRATED STEEL WORKSs
Exhaust gas capture rate also only have 60%~70%, the inorganization exhaust gas volumn that part small enterprise or the low enterprise of management level are discharged
Up to more than 80%.Therefore, it is necessary to increase iron and steel enterprise's uncontrollable discharge control measure, to improve iron and steel enterprise's uncontrollable discharge
Present situation.
Blast furnace in process of production, it is necessary to which blast furnace gas is carried out the reason for because of situations such as more air change outlet, shutdown maintenance
Diffuse, at present not diffuse valve outlet be provided with dedusting set, traditional diffusing directly is arranged by opening bleeding valve
Enter in air, due to containing a large amount of dust in blast furnace gas, scene, which can be seen when blast furnace roof diffuses, occurs that black smoke billows, right
Air causes greatly to pollute.In order to improve this pollution condition, it is badly in need of setting one kind blast furnace out-spreading coal gas can be carried out dedusting
It is discharged into the facility of air again afterwards, so as to reduce the discharge of dust, reduces the pollution to air, while reduce to iron-smelter worker's body
The harm of heart health.
Utility model content
In view of this, the purpose of this utility model is to provide the low and environmentally friendly height of a kind of simple in structure, small investment, energy consumption
The dust-extraction unit that producer gas diffuses.
To reach above-mentioned purpose, the utility model provides following technical solution：
A kind of blast furnace gas diffusing dust-extraction unit, including cyclone dust collectors (1), gas bleeding valve control valve (2), desorption tube
Road (3) and ash-valve (6)；
The cyclone dust collectors (1) are arranged at stock gas and diffuse on pipeline (3), and cyclone dust collectors (1) port of export passes through
Blast furnace out-spreading coal gas after dedusting is discharged into air by diffuse channel (3-3)；Cyclone dust collectors (1) arrival end passes through diffuse channel
(3-2) is connected with gas bleeding valve control valve (2) port of export；Gas bleeding valve control valve (2) arrival end passes through desorption tube
Road (3-1) is connected with coal gas five-way ball (14)；
The pipeline (3) that diffuses includes diffuse channel (3-1), diffuse channel (3-2) and diffuse channel (3-3)；
The ash-valve (6) is installed on cyclone dust collectors (1) lower part, for being turned on and off the row of cyclone dust collectors (1)
The grey port of export.
Further, described device further includes ash discharge pipeline (4), water supply pipe (5) and solid-holding device (7)；
The ash-valve (6) is installed on the ash discharge pipeline (4) of cyclone dust collectors (1) lower part, and ash discharge pipeline (4) access is held
Slag device (7)；
The access point of the water supply pipe (5) removes to be connected positioned at blast furnace roof position with cyclone dust collectors (1) to whirlwind
Supply water and cleaned in dirt device (1).
Further, the solid-holding device (7) is blast furnace dry pit (7-1) or grain slag sedimentation basin (7-2).
Further, the gas bleeding valve control valve (2) is type hydraulic actuator valve, the diameter and quantity of valve with
Blast furnace heat size is adapted.
Further, the type of drive of the ash-valve (6) include it is electronic, surge and pneumatically.
Further, water supply valve group and force (forcing) pump (10) are provided with the water supply pipe (5), water supply pipe (5) end is set
Nozzle (22) is equipped with, ejected wash water carries out cyclone dust collectors (1) inner wall by being arranged on the nozzle (22) of water supply pipe (5) end
Cleaning.
Further, the nozzle (22) is installed on the upper and lower part of cyclone dust collectors (1).
Further, the water supply pipe (5) includes water supply pipe one (5-1) and water supply pipe one (5-2)；The feed pipe
Road one (5-1) is provided with feed water valve (8) and maintenance valve (9)；The water supply pipe two (5-2) is provided with force (forcing) pump (10), stops
Return valve (11) and maintenance valve (12)；
When blast furnace high-pressure water pressure is enough, feed water valve (8) is opened, ejected wash water is flowed to by water supply pipe one (5-1) revolves
Wind deduster (1) cleans it；When blast furnace high-pressure water pressure does not reach requirement, startup is arranged on two (5- of water supply pipe
2) force (forcing) pump (10) on, ejected wash water flow to cyclone dust collectors (1) by water supply pipe two (5-2) and it are cleaned.
Further, described device further includes emergency diffusion system；The emergency diffusion system include hydraulic pressure diffusion valve (15),
Press coal gas supervisor's diffusion valve (17), blast furnace down-comer (20) and press gas pipe (18), the hydraulic pressure diffusion valve (15) is set
In the top of blast furnace down-comer, coal gas supervisor's diffusion valve (17) is pressed to be arranged at the top for pressing coal gas supervisor (18), in blast furnace
When urgent damping down occurring in production operation, by bleeding valve (15) and press coal gas to be responsible for diffusion valve (17) and carry out coal gas
Emergency diffusion；During normal damping down, the emergency diffusion system is closed.
The beneficial effects of the utility model are：The utility model has environmentally friendly, simple in structure, small investment, easy to operate etc.
Advantage, the blast furnace roof occurred under the situations such as blast furnace more air change outlet, shutdown maintenance diffuses exhaust gas, after by this dust-extraction unit
It is discharged into again in air, pollution of the dust to environment, meet the requirement of environmental protection, so as to fulfill the environmentally friendly hair of iron-smelter can be reduced
Exhibition.
Brief description of the drawings
In order to make the purpose of this utility model, technical solution and beneficial effect clearer, the utility model provides as follows
Attached drawing illustrates：
Fig. 1 is the process flow chart of embodiment one；
Fig. 2 is the process flow chart of embodiment two.
Figure label is：1 cyclone dust collectors, 2 gas bleeding valve control valves, 3 diffuse pipeline, 3-1 diffuse channels, and 3-2 is put
Separate tube road, 3-3 diffuse channels, 4 ash discharge pipelines, 5 water supply pipes, 5-1 water supply pipes one, 5-2 water supply pipes two, 6 ash-valves, 7
Solid-holding device, 7-1 blast furnace dry pits, 7-2 grain slag sedimentation basins, 8 feed water valves, 9 maintenance valves, 10 force (forcing) pumps, 11 check-valves, 12 inspections
Valve is repaiied, 14 coal gas five-way balls, 15 hydraulic pressure diffusion valves, 16 bleeding valve platforms, 17 press coal gas supervisor's diffusion valve, and 18 press
Coal gas is responsible for, 19 coal gas tedges, 20 blast furnace down-comers, 21 coal gas sealing covers, 22 nozzles.
Embodiment
Below in conjunction with attached drawing, the preferred embodiment of the utility model is described in detail.
Embodiment one
Fig. 1 is the process flow chart of embodiment one provided by the utility model, and device includes cyclone dust collectors (1), coal
Gas diffusion valve control valve (2), diffuse pipeline (3) and ash-valve (6).Cyclone dust collectors (1) are installed on and diffuse on pipeline (3), and
It is placed on bleeding valve platform (16), cyclone dust collectors (1) port of export is connected with diffuse channel (3-3), cyclone dust collectors
(1) arrival end is connected by diffuse channel (3-2) with gas bleeding valve control valve (2), gas bleeding valve control valve (2) arrival end
It is connected by diffuse channel (3-1) with coal gas five-way ball (14), ash-valve (6) is installed on cyclone dust collectors (1) lower part.Blast furnace is just
During normal damping down, diffuse exhaust gas and be discharged into air after cyclone dust collectors dedusting, the large dust particle in emission coal gas is removed by whirlwind
The lower part of cyclone dust collectors is deposited in after the dedusting of dirt device, ash-valve is opened after the completion of diffusing and carries out artificial deashing.
Embodiment two
Fig. 2 is the process flow chart of embodiment two provided by the utility model, and device includes cyclone dust collectors (1), coal
Gas diffusion valve control valve (2), diffuse pipeline (3), ash discharge pipeline (4), water supply pipe (5), ash-valve (6) and solid-holding device (7).
Cyclone dust collectors (1) are installed on and diffuse on pipeline (3), and are placed on bleeding valve platform (16), and cyclone dust collectors (1) go out
Mouth end is connected with diffuse channel (3-3), and cyclone dust collectors (1) arrival end passes through diffuse channel (3-2) and gas bleeding valve controls
Valve (2) is connected, and gas bleeding valve control valve (2) arrival end is connected by diffuse channel (3-1) with coal gas five-way ball (14), ash discharge
Valve (6) be installed on cyclone dust collectors (1) lower part ash discharge pipeline (4) on, ash discharge pipeline (4) access blast furnace dry pit (7-1) or
Grain slag sedimentation basin (7-2), is provided with water supply valve group and force (forcing) pump (10) on water supply pipe (5), water supply pipe (5) end is provided with
Nozzle (22).
In blast furnace because, it is necessary to open under the situation such as the key equipment such as more air change outlet, shutdown maintenance, the maintenance of normal damping down
Diffusion valve positioned at furnace roof discharges the exhaust gas of generation.When every preparation is completed to reach and diffuses condition, coal is first turned on
Gas diffuses control valve (2), and coal gas imports after being come out from coal gas sealing cover (21) along four coal gas tedges (19) is located at the five of top
In logical ball (14), coal gas is discharged into air after cyclone dust collectors (1) dedusting.Blown in blast furnace staying using steam and catch up with remnants
During coal gas, moisture content increases in emission coal gas, and after cyclone dust collectors (1), large dust particle can settle the dust in coal gas
In the bottom of cyclone dust collectors (1), a part of dust can be sticked on the inner wall of cyclone dust collectors (1), devise cleaning for this
Water system.After coal gas diffusion is complete, the ash-valve (6) being arranged on ash discharge pipeline (4) is first turned on；Water supply pipe
(5) water supply pipe one (5-1) and water supply pipe one (5-2) are included；Water supply pipe one (5-1) is provided with feed water valve (8) and maintenance
Valve (9)；Water supply pipe two (5-2) is provided with force (forcing) pump (10), check-valves (11) and maintenance valve (12)；In blast furnace high pressure water
When pressure is enough, feed water valve (8) is opened, ejected wash water flows to cyclone dust collectors (1) from water supply pipe one (5-1)；When blast furnace high pressure
When water pressure does not reach requirement, start the force (forcing) pump (10) being arranged on water supply pipe two (5-2), ejected wash water passes through water supply pipe
Two (5-2) flow to cyclone dust collectors (1), and ejected wash water is by being arranged on the nozzle (22) of water supply pipe (5) end to cyclone dust removal
Device (1) inner wall is cleaned.Dust and sewage are discharged into blast furnace dry pit (7-1) or grain slag sedimentation basin (7-2) along ash discharge pipeline (4)
In, the waste water of generation may be recovered utilization after grain slag sedimentation basin (7-2), while iron dust containing also achieves recycling profit
With.
A hydraulic pressure diffusion valve (15) is provided with the top of blast furnace down-comer (20), presses the top of coal gas supervisor (18)
It is provided with one and presses coal gas supervisor's diffusion valve (17).In operation of blast furnace production, pipeline or explosion occur in stove when accident,
By bleeding valve (15) and coal gas supervisor's diffusion valve (17) can be pressed to carry out the emergency diffusion of coal gas, ensure blast fumance
It is safe and smooth.
Using this dust-extraction unit, pollution of the dust to environment can be reduced, the sewage recoverable of generation, also achieves and contain
The recycling of iron laden dust.
Finally illustrate, preferred embodiment above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe has been described in detail the utility model by above preferred embodiment, but those skilled in the art should manage
Solution, in the form and details can make it various changes, without departing from the utility model claims book institute
The scope of restriction.
Claims (9)
- A kind of 1. blast furnace gas diffusing dust-extraction unit, it is characterised in that：The device includes cyclone dust collectors (1), gas bleeding valve Control valve (2), diffuse pipeline (3) and ash-valve (6)；The cyclone dust collectors (1) are arranged at stock gas and diffuse on pipeline (3), and cyclone dust collectors (1) port of export is by diffusing Blast furnace out-spreading coal gas after dedusting is discharged into air by pipeline (3-3)；Cyclone dust collectors (1) arrival end passes through diffuse channel (3- 2) it is connected with gas bleeding valve control valve (2) port of export；Gas bleeding valve control valve (2) arrival end passes through diffuse channel (3-1) is connected with coal gas five-way ball (14)；The pipeline (3) that diffuses includes diffuse channel (3-1), diffuse channel (3-2) and diffuse channel (3-3)；The ash-valve (6) is installed on cyclone dust collectors (1) lower part, and the ash discharge for being turned on and off cyclone dust collectors (1) goes out Mouth end.
- A kind of 2. blast furnace gas diffusing dust-extraction unit as claimed in claim 1, it is characterised in that：Described device further includes ash discharge Pipeline (4), water supply pipe (5) and solid-holding device (7)；The ash-valve (6) is installed on the ash discharge pipeline (4) of cyclone dust collectors (1) lower part, ash discharge pipeline (4) access solid-holding dress Put (7)；The access point of the water supply pipe (5) is is connected positioned at blast furnace roof position with cyclone dust collectors (1), to cyclone dust collectors (1) supply water and cleaned in.
- A kind of 3. blast furnace gas diffusing dust-extraction unit as claimed in claim 2, it is characterised in that：The solid-holding device (7) is Blast furnace dry pit (7-1) or grain slag sedimentation basin (7-2).
- A kind of 4. blast furnace gas diffusing dust-extraction unit as claimed in claim 1, it is characterised in that：The gas bleeding valve control Valve (2) is type hydraulic actuator valve, and diameter and quantity and the blast furnace heat size of valve are adapted.
- A kind of 5. blast furnace gas diffusing dust-extraction unit as claimed in claim 1 or 2, it is characterised in that：The ash-valve (6) Type of drive include it is electronic, surge and pneumatically.
- A kind of 6. blast furnace gas diffusing dust-extraction unit as claimed in claim 2, it is characterised in that：On the water supply pipe (5) Water supply valve group and force (forcing) pump (10) are provided with, water supply pipe (5) end is provided with nozzle (22), and ejected wash water supplies water by being arranged on The nozzle (22) of pipeline (5) end cleans cyclone dust collectors (1) inner wall.
- A kind of 7. blast furnace gas diffusing dust-extraction unit as claimed in claim 6, it is characterised in that：The nozzle (22) is installed on The upper and lower part of cyclone dust collectors (1).
- A kind of 8. blast furnace gas diffusing dust-extraction unit as claimed in claim 6, it is characterised in that：Water supply pipe (5) bag Include water supply pipe one (5-1) and water supply pipe two (5-2)；The water supply pipe one (5-1) is provided with feed water valve (8) and service valve Door (9)；The water supply pipe two (5-2) is provided with force (forcing) pump (10), check-valves (11) and maintenance valve (12)；When blast furnace high-pressure water pressure is enough, feed water valve (8) is opened, ejected wash water flows to whirlwind by water supply pipe one (5-1) and removes Dirt device (1) cleans it；When blast furnace high-pressure water pressure does not reach requirement, startup is arranged on water supply pipe two (5-2) Force (forcing) pump (10), ejected wash water flows to cyclone dust collectors (1) by water supply pipe two (5-2) and it cleaned.
- A kind of 9. blast furnace gas diffusing dust-extraction unit as described in claim 1 or 2 or 3 or 4 or 6 or 7 or 8, it is characterised in that： Described device further includes emergency diffusion system；The emergency diffusion system includes hydraulic pressure diffusion valve (15), presses coal gas supervisor to put Dissipate valve (17), blast furnace down-comer (20) and press coal gas supervisor (18), the hydraulic pressure diffusion valve (15) is arranged at blast furnace down-comer Top, press coal gas supervisor diffusion valve (17) be arranged at press coal gas supervisor (18) top, sent out in operation of blast furnace production During raw urgent damping down, the emergency diffusion of coal gas supervisor's diffusion valve (17) progress coal gas by bleeding valve (15) and is pressed；Just During normal damping down, the emergency diffusion system is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721156644.5U CN207243917U (en) | 2017-09-11 | 2017-09-11 | A kind of blast furnace gas diffusing dust-extraction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721156644.5U CN207243917U (en) | 2017-09-11 | 2017-09-11 | A kind of blast furnace gas diffusing dust-extraction unit |
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| Publication Number | Publication Date |
|---|---|
| CN207243917U true CN207243917U (en) | 2018-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721156644.5U Active CN207243917U (en) | 2017-09-11 | 2017-09-11 | A kind of blast furnace gas diffusing dust-extraction unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439828A (en) * | 2018-12-27 | 2019-03-08 | 上海欧骋冶金成套设备有限公司 | A kind of blast furnace stops wind flue gas processing device again |
| CN109439821A (en) * | 2018-12-25 | 2019-03-08 | 中冶南方工程技术有限公司 | Coal gas diffusion at top of blast furnace system |
| CN111850200A (en) * | 2020-07-29 | 2020-10-30 | 中冶华天南京工程技术有限公司 | Environment-friendly blowing-down method for blast furnace |
| WO2021136010A1 (en) * | 2019-12-31 | 2021-07-08 | 中冶南方工程技术有限公司 | Furnace top diffused gas dust removal device during blowing-down and reblowing of blast furnace |
-
2017
- 2017-09-11 CN CN201721156644.5U patent/CN207243917U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109439821A (en) * | 2018-12-25 | 2019-03-08 | 中冶南方工程技术有限公司 | Coal gas diffusion at top of blast furnace system |
| CN109439828A (en) * | 2018-12-27 | 2019-03-08 | 上海欧骋冶金成套设备有限公司 | A kind of blast furnace stops wind flue gas processing device again |
| WO2021136010A1 (en) * | 2019-12-31 | 2021-07-08 | 中冶南方工程技术有限公司 | Furnace top diffused gas dust removal device during blowing-down and reblowing of blast furnace |
| CN111850200A (en) * | 2020-07-29 | 2020-10-30 | 中冶华天南京工程技术有限公司 | Environment-friendly blowing-down method for blast furnace |
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