CN210796511U - Blast furnace gas ash comprehensive utilization device - Google Patents
Blast furnace gas ash comprehensive utilization device Download PDFInfo
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- CN210796511U CN210796511U CN201920751982.6U CN201920751982U CN210796511U CN 210796511 U CN210796511 U CN 210796511U CN 201920751982 U CN201920751982 U CN 201920751982U CN 210796511 U CN210796511 U CN 210796511U
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- blast furnace
- ash
- gas ash
- comprehensive utilization
- utilization device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Abstract
The utility model belongs to the technical field of blast furnace by-product recycle, concretely relates to blast furnace gas ash comprehensive utilization device, including the ash storehouse, ash storehouse bottom is through unloading grey pipeline and jetting jar entry linkage, the export of jetting jar is connected with blast furnace coal injection house steward and tank car through gas ash jetting house steward and tank car ash conveying pipeline respectively. The blast furnace coal injection main pipe is connected with a blast furnace coal powder distributor, and the blast furnace coal powder distributor is connected with a blast furnace air supply tuyere of the blast furnace through a coal injection branch pipe. The utility model discloses both can directly utilize blast furnace gas ash, spout into the blast furnace after mixing gas ash and buggy, simplify the utilization flow of gas ash, also can transport the gas ash to the sintering plant through the tank car when the unsuitable jetting gas ash of blast furnace condition handles, and the ash that raises in the gas ash transportation process can all be avoided to two kinds of utilization modes, avoids the polluted environment. Solves the problem that the blast furnace gas ash is difficult to treat.
Description
Technical Field
The utility model belongs to the technical field of blast furnace by-product recycle, concretely relates to blast furnace gas ash comprehensive utilization device.
Background
The collected ash is called gas ash, which contains multiple elements such as iron and carbon, and is a poisonous and harmful substance with light weight and tiny particles, and is also one of the main solid emissions of steel enterprises. In the traditional treatment technology, gas ash is discharged into a truck through a humidifying ash discharging machine and then is conveyed to a sintering plant for treatment through the truck, and dust is seriously raised in the ash discharging and transferring processes, so that the environment is polluted. The blast furnace gas ash injection technology simplifies the blast furnace gas ash utilization process flow, avoids dust raising in the gas ash transfer process, and is beneficial to environmental protection, energy conservation and consumption reduction. However, the use of blast furnace gas ash injection technology is conditional, and blast furnace gas ash injection is not suitable for cases such as blast furnace irregularity, poor furnace conditions, poor raw fuel conditions, excessive harmful impurities in blast furnace gas ash, and the like. The ash storage capacity of the ash bin of the gravity dust collector or the cyclone dust collector is limited, and other treatment methods must be found for the gas ash.
Disclosure of Invention
In view of the above technical problems, an object of the present invention is to provide a blast furnace gas ash comprehensive utilization apparatus, which solves the problem that blast furnace gas ash is difficult to treat.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a blast furnace gas ash comprehensive utilization device which characterized in that: the device comprises an ash bin, wherein the bottom of the ash bin is connected with an inlet of a blowing tank through an ash discharging pipeline, and an outlet of the blowing tank is connected with a blast furnace coal injection main pipe and a tank car through a gas ash blowing main pipe and a tank car ash conveying pipeline respectively.
Furthermore, two parallel injection tanks are arranged at the bottom of the ash bin and are connected through an ash discharge pipeline.
Furthermore, the ash discharging pipeline is sequentially provided with a first ball valve and a flow limiting hole from top to bottom.
Furthermore, a diffusing pipeline is arranged at the top of the injection tank, a fourth ball valve is arranged on the diffusing pipeline, and the diffusing pipeline is connected with a bag-type dust collector.
Furthermore, a third ball valve is arranged on the gas ash injection main pipe.
Further, a second ball valve is arranged on the ash conveying pipeline of the tank truck.
Furthermore, the blast furnace coal injection main pipe is connected with a blast furnace coal powder distributor, and the blast furnace coal powder distributor is connected with a blast furnace air supply tuyere of the blast furnace through a coal injection branch pipe.
Further, the ash bin is an ash bin of a gravity dust collector or a cyclone dust collector.
The invention has the beneficial effects that: the utility model discloses both can directly utilize blast furnace gas ash, spout into the blast furnace after mixing gas ash and buggy, simplify the utilization flow of gas ash, also can transport the gas ash to the sintering plant through the tank car when the unsuitable jetting gas ash of blast furnace condition handles, and the ash that raises in the gas ash transportation process can all be avoided to two kinds of utilization modes, avoids the polluted environment. Solves the problem that the blast furnace gas ash is difficult to treat.
Drawings
FIG. 1 is a schematic structural view of a blast furnace gas ash comprehensive utilization apparatus.
In the figure: 1. an ash bin; 2. a first ball valve; 3. a flow restriction orifice; 4. an ash discharge pipe; 5. a blowing tank; 6. a gas ash injection main pipe; 7. a tank car ash conveying pipeline; 8. a second ball valve; 9. a tank car; 10. a third ball valve; 11. a blast furnace coal injection main pipe; 12. a blast furnace coal powder distributor; 13. coal injection branch pipes; 14. a blast furnace air supply tuyere; 15. a blast furnace; 16. a bag-type dust collector; 17. a fourth ball valve; 18. and (4) diffusing the pipeline.
Detailed Description
For a better understanding of the present invention, the technical solutions of the present invention will be further described below with reference to the following examples and accompanying drawings.
As shown in fig. 1, a blast furnace gas ash comprehensive utilization device, including gravity dust collector or cyclone's ash bin 1, ash bin 1 bottom is equipped with two jetting jars 5 that parallel, and the entry of two jetting jars 5 is all connected with ash bin 1 bottom through unloading grey pipeline 4, is equipped with two first ball valves 2 and a restricted aperture 3 from last to down in proper order on every unloading grey pipeline 4. The top of the blowing tank 5 is provided with a diffusing pipeline 18, the diffusing pipeline 18 is provided with a fourth ball valve 17, and the diffusing pipeline 18 is connected with a bag-type dust collector 16.
The outlet of the injection tank 5 is respectively connected with a blast furnace coal injection main pipe 11 and a tank car 9 through a gas ash injection main pipe 6 and a tank car ash conveying pipeline 7; or the outlet of the injection tank 5 is connected with a blast furnace coal injection main pipe 11 through a gas ash injection main pipe 6, and the tank car ash conveying pipeline 7 is connected with the gas ash injection main pipe 6. And a third ball valve 10 is arranged on the gas ash injection main pipe 6, and a second ball valve 8 is arranged on the ash conveying pipeline 7 of the tank car. The blast furnace coal injection main pipe 11 is connected with a blast furnace coal powder distributor 12, and the blast furnace coal powder distributor 12 is connected with a blast furnace air supply tuyere 14 of a blast furnace 15 through a coal injection branch pipe 13.
The utility model discloses an operation principle: the utility model discloses carry out gas ash jetting under the condition that 15 suitable gas ash of blast furnace jetting, and gas ash can be transported to the sintering plant by tank car 9 and handle under the condition that is not suitable for the jetting.
The utility model discloses an operation process: the gas ash in the ash bin 1 of the gravity dust collector or the cyclone dust collector is loaded into a blowing tank 5 through an ash discharge pipeline 4. Install first ball valve 2, restricted orifice 3 from last to down on unloading the ash pipeline 4, restricted orifice 3 is used for the restriction to unload the ash flow, closes first ball valve 2 after jetting jar 5 fills with the gas ash.
When the blast furnace 15 is suitable for gas ash injection, the second ball valve 8 on the ash conveying pipeline 7 of the tank car is closed, the third ball valve 10 on the gas ash injection main pipe 6 is opened, the gas ash passes through the gas ash injection main pipe 6 from the injection tank 5 and enters the blast furnace coal injection main pipe 11, then enters the blast furnace coal powder distributor 12 together with coal powder, and then sequentially passes through the coal injection branch pipe 13 and the blast furnace air supply tuyere 14 and enters the blast furnace 15 for combustion. For safety, nitrogen was used for gas ash injection.
When the blast furnace 15 is not suitable for gas ash injection, the second ball valve 8 on the ash conveying pipeline 7 of the tank car and the third ball valve 10 on the gas ash injection main pipe 6 are closed, the fourth ball valve 17 on the diffusing pipeline 18 is opened, dust-containing gas in the injection tank 5 is diffused, nitrogen is introduced to completely remove the gas, the dust-containing gas and the nitrogen are filtered by the bag-type dust remover 16 and then discharged into the atmosphere, when the gas content is reduced to the safety standard, the nitrogen introduction is stopped, and the fourth ball valve 17 on the diffusing pipeline 18 is closed. And opening a second ball valve 8 on the ash conveying pipeline 7 of the tank truck, spraying the gas ash in the spraying tank 5 into the tank truck 9, closing the second ball valve 8 after the ash loading of the tank truck 9 is finished, and conveying the gas ash to a sintering plant by the tank truck 9 for treatment.
The above description is only an application example of the present invention, and certainly, the present invention should not be limited by this application, and therefore, the present invention is still within the protection scope of the present invention by equivalent changes made in the claims of the present invention.
Claims (8)
1. The utility model provides a blast furnace gas ash comprehensive utilization device which characterized in that: the device comprises an ash bin (1), wherein the bottom of the ash bin (1) is connected with an inlet of a blowing tank (5) through an ash discharge pipeline (4), and an outlet of the blowing tank (5) is connected with a blast furnace coal injection main pipe (11) and a tank car (9) through a gas ash blowing main pipe (6) and a tank car ash conveying pipeline (7) respectively.
2. The blast furnace gas ash comprehensive utilization device according to claim 1, characterized in that: the bottom of the ash bin (1) is provided with two parallel injection tanks (5) which are connected through an ash discharge pipeline (4).
3. The blast furnace gas ash comprehensive utilization device according to claim 2, characterized in that: the ash discharging pipeline (4) is sequentially provided with a first ball valve (2) and a flow limiting hole (3) from top to bottom.
4. The blast furnace gas ash comprehensive utilization device according to claim 1, 2, or 3, characterized in that: the blowing tank (5) top is equipped with diffuse pipeline (18), be equipped with fourth ball valve (17) on diffuse pipeline (18), diffuse pipeline (18) and be connected with sack cleaner (16).
5. The blast furnace gas ash comprehensive utilization device according to claim 1, characterized in that: and a third ball valve (10) is arranged on the gas ash injection main pipe (6).
6. The blast furnace gas ash comprehensive utilization device according to claim 1, characterized in that: and a second ball valve (8) is arranged on the ash conveying pipeline (7) of the tank car.
7. The blast furnace gas ash comprehensive utilization device according to claim 1, characterized in that: the blast furnace coal injection main pipe (11) is connected with a blast furnace coal powder distributor (12), and the blast furnace coal powder distributor (12) is connected with a blast furnace air supply tuyere (14) of a blast furnace (15) through a coal injection branch pipe (13).
8. The blast furnace gas ash comprehensive utilization device according to claim 1, characterized in that: the ash bin (1) is an ash bin of a gravity dust collector or a cyclone dust collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920751982.6U CN210796511U (en) | 2019-05-23 | 2019-05-23 | Blast furnace gas ash comprehensive utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920751982.6U CN210796511U (en) | 2019-05-23 | 2019-05-23 | Blast furnace gas ash comprehensive utilization device |
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| Publication Number | Publication Date |
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| CN210796511U true CN210796511U (en) | 2020-06-19 |
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| CN201920751982.6U Active CN210796511U (en) | 2019-05-23 | 2019-05-23 | Blast furnace gas ash comprehensive utilization device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428655A (en) * | 2021-08-26 | 2021-09-24 | 江苏沃泰冶金设备有限公司 | Anti-blocking and anti-reverse-flow closed gas ash closed conveying system |
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2019
- 2019-05-23 CN CN201920751982.6U patent/CN210796511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428655A (en) * | 2021-08-26 | 2021-09-24 | 江苏沃泰冶金设备有限公司 | Anti-blocking and anti-reverse-flow closed gas ash closed conveying system |
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