CN209227008U - A kind of blast furnace gas purification recovery system - Google Patents
A kind of blast furnace gas purification recovery system Download PDFInfo
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- CN209227008U CN209227008U CN201821298830.7U CN201821298830U CN209227008U CN 209227008 U CN209227008 U CN 209227008U CN 201821298830 U CN201821298830 U CN 201821298830U CN 209227008 U CN209227008 U CN 209227008U
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- gas
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- recovering
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Abstract
The utility model discloses a kind of blast furnace gas purification recovery systems, it is related to gas purification recovery technology field, blast furnace gas purification recovery system includes blast furnace, batch can, gravitational dust collecting device, presses coal-gas recovering dust-extraction unit and dedusting of blast furnace gas unit, the upper end of blast furnace is provided with batch can, blast furnace is connected by raw coke oven gas pipeline with gravitational dust collecting device, and gravitational dust collecting device is connected by conveyance conduit with dedusting of blast furnace gas unit；And batch can, by pressing coal-gas recovering pipeline to be connected to pressure coal-gas recovering dust-extraction unit, pressure coal-gas recovering dust-extraction unit is connected to outer net coal gas user；Damping down air-supply coal-gas recovering pipeline is provided on raw coke oven gas pipeline, damping down air-supply coal-gas recovering pipeline is connected to close one end for pressing coal-gas recovering dust-extraction unit of pressure coal-gas recovering pipeline.The release of raw coke oven gas results in waste of resources and the problem of environmental pollution when the utility model is able to solve damping down, pushing wind manipulation in the work of existing blast furnace metallurgy, energy conservation and environmental protection.
Description
Technical field
The utility model relates to gas purification recovery technology fields, and in particular to a kind of blast furnace gas purification recovery system.
Background technique
In metallurgy industry, the pollution of energy consumption needed for blast furnace ironmaking and generation occupies very big in entire steel process
Specific gravity is the important propulsion object of energy-saving and emission-reduction measure.Blast furnace ironmaking using pressing coal-gas recovering technology, can not only for enterprise and
Society brings good environmental protection effect, and considerable economic benefit is also brought to enterprise.But stop in blast furnace production process at present
The release problem of raw coke oven gas is never well solved when wind, pushing wind manipulation.Although such case is abnormal condition
Lower generation, but pollution resulting from and waste can not be ignored, the recycling of blast furnace staying air-supply coal gas and purified gas row
It puts with important environment protection significance.
Utility model content
The purpose of this utility model is to provide a kind of blast furnace gas purification recovery systems, to solve existing blast furnace process
The release of raw coke oven gas results in waste of resources and the problem of environmental pollution when damping down, pushing wind manipulation in the process.
To achieve the above object, the utility model embodiment provides a kind of blast furnace gas purification recovery system, the blast furnace
Gas purification recovery system includes blast furnace, batch can, gravitational dust collecting device, presses coal-gas recovering dust-extraction unit and dedusting of blast furnace gas
Unit, the upper end of the blast furnace are provided with batch can, and the blast furnace is connected by raw coke oven gas pipeline with gravitational dust collecting device, described heavy
Power dust-extraction unit is connected by conveyance conduit with dedusting of blast furnace gas unit；And the batch can is connected by pressure coal-gas recovering pipeline
It is connected to pressure coal-gas recovering dust-extraction unit, the pressure coal-gas recovering dust-extraction unit is connected to outer net coal gas user；The famine coal
Damping down air-supply coal-gas recovering pipeline is provided in feed channel, the damping down air-supply coal-gas recovering pipeline is connected to pressure coal-gas recovering
The close one end for pressing coal-gas recovering dust-extraction unit of pipeline.
The batch can upper end is provided with pressure-equalizing bleeding device, the top of the raw coke oven gas pipeline as a preferred technical solution,
End is provided with bleeding valve.
Gravitational dust collection release is provided on the conveyance conduit on gravitational dust collection unit top as a preferred technical solution,
Valve, the top inside gravitational dust collection unit are provided with gravity intercepter valve (IV).
Described press sets respectively on coal-gas recovering pipeline and damping down air-supply coal-gas recovering pipeline as a preferred technical solution,
It is equipped with and presses coal-gas recovering control valve and damping down air-supply coal-gas recovering control valve.
It is set on the conveyance conduit of the pressure coal-gas recovering dust-extraction unit connection external network user as a preferred technical solution,
It is equipped with purified gas release valve and outer net control valve.
It is provided on the pressure coal-gas recovering pipeline of described batch can one end for connecting as a preferred technical solution,
The blast furnace balanced pressure system interface of external system.
The TRT system that the blast furnace dedusting system is provided with for connecting TRT system as a preferred technical solution, connects
Mouthful.
The utility model embodiment has the advantages that
(1) the utility model recycles the coal gas diffused in traditional blast furnace staying, air supply process to greatest extent, subtracts
Secondary energy sources are recycled while of low pollution；
(2) purified gas diffuses after dust removal by filtration may be implemented for the coal gas for being unsuitable for recycling in the utility model；
(3) the utility model is conceived to existing blast furnace and presses gas recovery system, makes full use of the function of the set system, only
Increase a small amount of equipment；
(4) there is individual automatic control system in the sets of plan, by detecting various process parameters, realize each valve
Intelligentized control method, and with original system organically combine；
(5) it the utility model damping down gas recovery system and traditional direct furnace roof diffusion system and deposits, mutual backup system
System improves process safety coefficient.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of blast furnace gas purification recovery system provided by the embodiment of the utility model.
In figure: blast furnace 1, gravitational dust collecting device 3, presses coal-gas recovering dust-extraction unit 4, dedusting of blast furnace gas unit at batch can 2
5, pressure-equalizing bleeding device 6, raw coke oven gas pipeline 7, bleeding valve 8, pressure coal-gas recovering pipeline 9, damping down air-supply coal-gas recovering pipe
Road 10, purified gas release valve 11, gravity intercepter valve (IV) 12, damping down air-supply coal-gas recovering control valve 13, gravitational dust collection diffusion valve 14,
Outer net control valve 15 presses coal-gas recovering control valve 16, TRT system interface 17, blast furnace balanced pressure system interface 18.
Specific embodiment
The following examples illustrate the utility model, but is not intended to limit the scope of the present invention.
Embodiment 1
With reference to Fig. 1, the present embodiment provides a kind of blast furnace gas purification recovery systems, including blast furnace 1, batch can 2, gravitational dust collection
Device 3 presses coal-gas recovering dust-extraction unit 4 and dedusting of blast furnace gas unit 5, and the upper end of blast furnace 1 is provided with batch can 2, for containing
Crude fuel needed for dress is smelted, blast furnace 1 are connected by raw coke oven gas pipeline 7 with gravitational dust collecting device 3, and raw coke oven gas pipeline includes export
Pipe, tedge and down-comer etc., gravitational dust collecting device 3 are connected by conveyance conduit with dedusting of blast furnace gas unit 5, are carried out normal
Production procedure；And batch can 2 is connected to pressure coal-gas recovering dust-extraction unit 4 by pressure coal-gas recovering pipeline 9, for coal gas
It is recycled, pressure coal-gas recovering dust-extraction unit 4 is connected to outer net coal gas user, provides coal gas for user.The present embodiment provides
Blast furnace gas purification recovery system be all made of automated procedures control.
Further, damping down air-supply coal-gas recovering pipeline 10, damping down air-supply coal-gas recovering pipe are provided on raw coke oven gas pipeline 7
Road 10 is connected to one end of the close import for pressing coal-gas recovering dust-extraction unit 4 of pressure coal-gas recovering pipeline 9.2 upper end of batch can is set
It is equipped with pressure-equalizing bleeding device 6, the top of raw coke oven gas pipeline 7 is provided with bleeding valve 8, and pressure coal gas diffusing device 6 is used to put down
Balance system pressure, bleeding valve 8 are used for the release of blast furnace gas when damping down.
Further, 3 top of gravitational dust collecting device is provided with gravitational dust collection diffusion valve 14, is used for gravitational dust collection when damping down and fills
The release of coal gas in 3 is set, gravitational dust collecting device 3 is internally provided with gravity intercepter valve (IV) 12, by promoting or transferring gravity intercepter valve (IV)
12 realize the on-off of blast furnace gas Yu dedusting of blast furnace gas unit 5.Press coal-gas recovering pipeline 9 and damping down air-supply coal-gas recovering
It is respectively arranged on pipeline 10 and presses coal-gas recovering control valve 16 and damping down air-supply coal-gas recovering control valve 13, be respectively intended to control
Press coal gas and the on-off for pressing coal-gas recovering dust-extraction unit in coal-gas recovering pipeline 9 and damping down air-supply coal-gas recovering pipeline 10.
Purified gas release valve 11 and outer net control are provided on the conveyance conduit of pressure coal-gas recovering dust-extraction unit 4 connection external network user
Valve 15, purified gas release valve 11, which is used to discharge gas composition, is unsatisfactory for production requirement or unrenewable blast furnace gas, outside
Net control valve 15 is used to control whether gas recovery supplying user.On the pressure coal-gas recovering pipeline 9 of 2 one end of batch can
It is provided with the blast furnace balanced pressure system interface 18 for connecting blast furnace balanced pressure system.Blast furnace dedusting system is provided with for connecting TRT
The TRT system interface 17 of system, TRT (Top Gas RecoveryTurbine Unit) are blast-furnace top gas recovery turbine power generation dresses
It sets, it is converted into mechanical energy by turbine expansion work using pressure energy and thermal energy possessed by top gas, thus
Driven generator power generation, improves energy utilization rate.
In addition, a kind of working principle of blast furnace gas purification recovery system provided in this embodiment are as follows: when blast furnace staying, first
It closes and presses coal gas recovery valve 16, open damping down air-supply recovery channel valve 13, transfer gravity intercepter valve (IV) 12, damping down coal gas is drawn
Enter pressure coal-gas recovering dust-extraction unit 4 to be recycled, the automatic control program in removal process by system is to coal gas pressure
The parameters such as power and oxygen content are detected, and guarantee the safety of system, when oxygen content be higher than limit value when or carbon monoxide index
It is unsatisfactory for stopping the recycling to damping down coal gas when recycling requires or when gas recovery pressure is lower than setting pressure, automatically controlling
Program automatically opens purified gas release valve 11, simultaneously closes off outer net control valve 15, carries out the release of residual gas, work as release
After the completion of process, i.e., when furnace top pressure is close to zero, automatic control program automatically turns on bleeding valve 8, gravitational dust collection release
Valve 14, is communicated with the atmosphere, and using the relatively high advantage of bleeding valve 8 and 14 position of gravitational dust collection diffusion valve, meets gas
The demand of circulation guarantees furnace top equipment and the movable safety of maintenance, bleeding valve 8 during damping down, purified gas diffusion valve 11,
Gravitational dust collection diffusion valve 14 is kept it turning on.
When blast furnace is blown, bleeding valve 8 and gravitational dust collection diffusion valve 14 are closed, and makes damping down air-supply coal gas recovery valve
13, purified gas release valve 11 is in the open state, and pressure coal-gas recovering control valve 16 and outer net control valve 15, which are in, closes
Air-supply initial stage raw coke oven gas is introduced and presses coal-gas recovering dust-extraction unit 4, after being filtered, passes through purified gas diffusion valve 11 by state
It is diffused to the coal gas that recycling requires is unsatisfactory for, after gas composition is met the requirements, automatic control system opens outer net control
Valve 15 simultaneously closes off purified gas diffusion valve 11, carries out coal-gas recovering.After having bleed condition completely, gravity intercepter valve (IV) is opened
Blast furnace gas is introduced gravitational dust collecting device 3 and dedusting of blast furnace gas unit 5 by 12, simultaneously closes off damping down air-supply coal gas recovery valve
13.This is arrived, gas purification recycling and release process are completed during blast furnace staying, air-supply, and gas cleaning system enters normal raw
Produce operational mode.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is apparent to those skilled in the art
's.Therefore, these modifications or improvements on the basis of without departing from the spirit of the present invention, belong to the utility model and want
Seek the range of protection.
Claims (7)
1. a kind of blast furnace gas purification recovery system, it is characterised in that: the blast furnace gas purification recovery system includes blast furnace
(1), batch can (2), gravitational dust collecting device (3), pressure coal-gas recovering dust-extraction unit (4) and dedusting of blast furnace gas unit (5), it is described
The upper end of blast furnace (1) is provided with batch can (2), and the blast furnace (1) is connected by raw coke oven gas pipeline (7) with gravitational dust collecting device (3),
The gravitational dust collecting device (3) is connected by conveyance conduit with dedusting of blast furnace gas unit (5)；
And the batch can (2) is connected to pressure coal-gas recovering dust-extraction unit (4) by pressure coal-gas recovering pipeline (9), it is described equal
Pressure coal-gas recovering dust-extraction unit (4) is connected to outer net coal gas user；
Damping down air-supply coal-gas recovering pipeline (10), the damping down air-supply coal-gas recovering pipe are provided on the raw coke oven gas pipeline (7)
Road (10) is connected to one end of the close import for pressing coal-gas recovering dust-extraction unit (4) of pressure coal-gas recovering pipeline (9).
2. a kind of blast furnace gas purification recovery system as described in claim 1, it is characterised in that: batch can (2) upper end is set
It is equipped with pressure-equalizing bleeding device (6), the top of the raw coke oven gas pipeline (7) is provided with bleeding valve (8).
3. a kind of blast furnace gas purification recovery system as described in claim 1, it is characterised in that: the gravitational dust collecting device
(3) it is provided on the conveyance conduit on top gravitational dust collection diffusion valve (14), gravitational dust collecting device (3) is internally provided with gravity blocking
Valve (12).
4. a kind of blast furnace gas purification recovery system as described in claim 1, it is characterised in that: described to press coal-gas recovering pipe
It is respectively arranged on road (9) and damping down air-supply coal-gas recovering pipeline (10) and presses coal-gas recovering control valve (16) and damping down air-supply coal
Gas recovery control valve (13).
5. a kind of blast furnace gas purification recovery system as described in claim 1, it is characterised in that: the pressure coal-gas recovering is removed
Purified gas release valve (11) and outer net control valve (15) are provided on the conveyance conduit of dirt device (4) connection external network user.
6. a kind of blast furnace gas purification recovery system as described in claim 1, it is characterised in that: be located at the batch can (2) one
The blast furnace balanced pressure system interface (18) for connecting external system is provided on the pressure coal-gas recovering pipeline (9) at end.
7. a kind of blast furnace gas purification recovery system as described in claim 1, it is characterised in that: blast furnace (1) the dedusting system
System is provided with the TRT system interface (17) for connecting TRT system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298830.7U CN209227008U (en) | 2018-08-13 | 2018-08-13 | A kind of blast furnace gas purification recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821298830.7U CN209227008U (en) | 2018-08-13 | 2018-08-13 | A kind of blast furnace gas purification recovery system |
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| Publication Number | Publication Date |
|---|---|
| CN209227008U true CN209227008U (en) | 2019-08-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821298830.7U Expired - Fee Related CN209227008U (en) | 2018-08-13 | 2018-08-13 | A kind of blast furnace gas purification recovery system |
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| Country | Link |
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| CN (1) | CN209227008U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111187867A (en) * | 2020-04-01 | 2020-05-22 | 北京中北欧瑞智工程技术有限公司 | Integrated recovery process for diffused raw coke oven gas |
| CN113278747A (en) * | 2020-02-20 | 2021-08-20 | 宝山钢铁股份有限公司 | Method for preventing ash emission from top of blast furnace |
-
2018
- 2018-08-13 CN CN201821298830.7U patent/CN209227008U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113278747A (en) * | 2020-02-20 | 2021-08-20 | 宝山钢铁股份有限公司 | Method for preventing ash emission from top of blast furnace |
| CN111187867A (en) * | 2020-04-01 | 2020-05-22 | 北京中北欧瑞智工程技术有限公司 | Integrated recovery process for diffused raw coke oven gas |
| CN111187867B (en) * | 2020-04-01 | 2024-02-09 | 北京中北欧瑞智工程技术有限公司 | Integrated recovery process for diffused raw gas |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| 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: 20190809 |