CN113088619A - Vanadium extraction converter gas recovery device - Google Patents
Vanadium extraction converter gas recovery device Download PDFInfo
- Publication number
- CN113088619A CN113088619A CN202110362092.8A CN202110362092A CN113088619A CN 113088619 A CN113088619 A CN 113088619A CN 202110362092 A CN202110362092 A CN 202110362092A CN 113088619 A CN113088619 A CN 113088619A
- Authority
- CN
- China
- Prior art keywords
- gas
- vanadium extraction
- extraction converter
- recovery device
- gas recovery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 48
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000000605 extraction Methods 0.000 title claims abstract description 47
- 238000011084 recovery Methods 0.000 title claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 55
- 239000000428 dust Substances 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003034 coal gas Substances 0.000 claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 15
- 239000001301 oxygen Substances 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000009834 vaporization Methods 0.000 claims abstract description 10
- 230000008016 vaporization Effects 0.000 claims abstract description 10
- 238000001704 evaporation Methods 0.000 claims abstract description 7
- 230000008020 evaporation Effects 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 17
- 239000003546 flue gas Substances 0.000 claims description 14
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 abstract description 3
- 238000009628 steelmaking Methods 0.000 abstract description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
-
- 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
- Y02P10/25—Process efficiency
Abstract
The invention relates to the field of vanadium extraction converter equipment, in particular to a vanadium extraction converter gas recovery device for effectively realizing vanadium extraction converter gas treatment and energy recovery. The technical scheme adopted by the invention for solving the technical problems is as follows: the vanadium extraction converter gas recovery device comprises a vaporization cooling flue, an evaporation cooler, a spray washing dust remover, a fine dust remover, a dehydrator and a three-way switching valve set which are sequentially communicated, wherein the three-way switching valve set is respectively communicated with a gas ignition diffusing tower and a gas turbine, and an oxygen detection device is arranged between the cyclone dehydrator and the three-way switching valve set. The invention can not only recover the coal gas of the vanadium extraction converter, but also utilize the gas turbine of the fuel with ultra-low heat value to generate power resources, fully recycle the waste heat, further reduce the energy consumption of steelmaking, and is particularly suitable for the coal gas recovery process of the vanadium extraction converter.
Description
Technical Field
The invention relates to the field of vanadium extraction converter equipment, in particular to a coal gas recovery device of a vanadium extraction converter.
Background
When the vanadium extraction converter is used for converting, a large amount of high-temperature flue gas containing carbon monoxide and iron oxide dust is generated, carbon monoxide contained in the flue gas cannot be effectively recovered, and after the recovery, the coal gas generated by the vanadium extraction converter is unstable, the calorific value is too low, and the coal gas cannot be utilized, so that the coal gas cannot be recycled, and the energy waste is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a vanadium extraction converter gas recovery device which can effectively realize the treatment of the vanadium extraction converter gas and the energy recovery.
The technical scheme adopted by the invention for solving the technical problems is as follows: the vanadium extraction converter gas recovery device comprises a vaporization cooling flue, an evaporation cooler, a spray washing dust remover, a fine dust remover, a dehydrator and a three-way switching valve set which are sequentially communicated, wherein the three-way switching valve set is respectively communicated with a gas ignition diffusing tower and a gas turbine, and an oxygen detection device is arranged between the cyclone dehydrator and the three-way switching valve set.
Further, the gas-water heat exchanger is communicated with the gas outlet of the gas turbine.
Further, the device comprises a flue gas diffusing tower, and the gas-water heat exchange device is communicated with the flue gas diffusing tower.
Further, the solar water heater comprises a domestic water inlet pipe and a domestic water outlet pipe which are communicated with the gas-water heat exchange device, wherein a lithium bromide absorption unit is arranged at the domestic water outlet pipe.
Further, the fine dust collector is a venturi tube.
Further, the gas turbine is an ultra-low heating value fuel gas turbine.
Further, the oxygen detection device is an oxygen analyzer.
Further, the dehydrator is a cyclone dehydrator.
Further, the device comprises a cooling water pipe which is communicated with the evaporation cooling flue to realize heat exchange.
Further comprises a vanadium extraction converter hood which is communicated with the vaporization cooling flue.
The invention has the beneficial effects that: during actual use, coal gas from the vanadium extraction converter firstly enters the vaporization cooling flue, the temperature of the coal gas of the vanadium extraction converter is reduced to 800-1000 ℃ through the vaporization cooling flue, and meanwhile steam produced by recovering waste heat of flue gas is taken away. Then, the coal gas of the vanadium extraction converter enters an evaporative cooler for cooling and coarse dust removal, the temperature of the coal gas of the vanadium extraction converter is further reduced to about 300 ℃, and the dust concentration is reduced to 30g/Nm3The following. Then the flue gas enters a spray washing dust remover, the temperature of the coal gas of the vanadium extraction converter is further reduced to about 72 ℃ of saturation temperature, and the dust concentration is further reduced to 5g/Nm3And then, the gas enters a fine dust remover for fine dust removal, and then is dewatered and demisted by a subsequent dehydrator, the gas is detected by an oxygen detection device, if the gas is unqualified in oxygen detection, the gas flows to a gas ignition diffusing tower for combustion and then is diffused by a three-way switching valve group, and if the gas is qualified in oxygen detection, the vanadium extraction converter gas enters a gas turbine for combustion and power generation through the three-way switching valve group to realize recovery. The invention can not only recover the coal gas of the vanadium extraction converter, but also utilize the gas turbine of the fuel with ultra-low heat value to generate power resources, fully recycle the waste heat, further reduce the energy consumption of steelmaking, and is particularly suitable for the coal gas recovery process of the vanadium extraction converter.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Labeled as: the device comprises a vanadium extraction converter cover 1, a vaporization cooling flue 2, an evaporation cooler 3, a spray washing dust remover 4, a fine dust remover 5, a dehydrator 6, a pump 7, an oxygen detection device 8, a three-way switching valve group 9, a gas ignition diffusing tower 10, a gas turbine 11, a gas-water heat exchange device 12, a flue gas diffusing tower 13, a domestic water outlet pipe water pump 14, a lithium bromide absorption unit 15, a steam discharge pipe 16, a cooling water pipe 161, a domestic water outlet pipe outlet 17 and a domestic water inlet pipe 18.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The vanadium extraction converter gas recovery device shown in fig. 1 comprises a vaporization cooling flue 2, an evaporation cooler 3, a spray washing dust remover 4, a fine dust remover 5, a dehydrator 6 and a three-way switching valve group 9 which are sequentially communicated, wherein the three-way switching valve group 9 is respectively communicated with a gas ignition diffusing tower 10 and a gas turbine 11, and an oxygen detection device 8 is arranged between the cyclone dehydrator 6 and the three-way switching valve group 9. When the existing vanadium extraction converter works practically, about 2.5 ten thousand meters of vanadium is generated in each converter3The vanadium extraction converter gas has carbon monoxide content of about 20 percent and heat value of 650Kcal/m3On the other hand, the vanadium extraction converter has unstable gas generation amount and low gas heat value, so that the vanadium extraction converter can not be recycled. The invention can not only recover the coal gas of the vanadium extraction converter, but also utilize the gas turbine of the fuel with ultra-low heat value to generate power resources, fully recycle the waste heat and further reduce the energy consumption of steelmaking.
In actual use, in order to recycle the heat energy of the gas discharged from the gas turbine 11, it is preferable to add a gas-water heat exchanger 12, and the gas-water heat exchanger 12 is communicated with the gas outlet of the gas turbine 11. The tail gas discharged by the gas turbine 11 is diffused by the flue gas diffusing tower 13 after passing through the gas-water heat exchange device 12, and the domestic water input from the outlet 17 of the domestic water outlet pipe is heated by the gas-water heat exchange device 12 and then is sent to domestic water areas such as bathhouses and dining halls for direct use. Preferably, a flue gas diffusing tower 13 is additionally arranged, and the gas-water heat exchange device 12 is communicated with the flue gas diffusing tower 13, so that the diffusing through the flue gas diffusing tower 13 is realized. In addition, preferably with the life water inlet pipe 18 and the life water outlet pipe of air water heat transfer device 12 intercommunication, life water outlet pipe department is provided with lithium bromide absorption unit 15 to let the life water of life water outlet pipe export 17 input after the heating of air water heat transfer device 12, send lithium bromide absorption unit 15 to for office and control room central air conditioning refrigeration heating usefulness. Generally, it is preferable to include a vanadium extraction converter hood 1, said vanadium extraction converter hood 1 communicating with a vaporization cooling flue 2 and thus better communicating with the vanadium extraction converter.
In order to further improve the treatment quality, the fine dust collector 5 is preferably a venturi, so as to obtain better fine dust collection effect. Preferably, the gas turbine 11 is an ultra-low calorific value fuel gas turbine, so that the vanadium extraction converter gas passing through the three-way switching valve group 9 and qualified in oxygen detection is fully utilized. The oxygen detection device 8 is preferably an oxygen analyzer to more accurately analyze the flue gas exiting the outlet of the dehydrator 6, and typically the dehydrator 6 is preferably a cyclone dehydrator.
In order to fully utilize the heat of the evaporative cooling flue 2, as shown in fig. 1, it is preferable to include a cooling water pipe 161, and the cooling water pipe 161 is communicated with the evaporative cooling flue 2 to perform heat exchange. The desalted water in the cooling water pipe 161 passes through the evaporative cooling flue 2 to form steam, and is discharged through the steam discharge pipe 16, thereby realizing full utilization of energy.
Claims (10)
1. The vanadium extraction converter gas recovery device is characterized in that: the device comprises a vaporization cooling flue (2), an evaporation cooler (3), a spray washing dust remover (4), a fine dust remover (5), a dehydrator (6) and a three-way switching valve set (9) which are sequentially communicated, wherein the three-way switching valve set (9) is respectively communicated with a coal gas ignition diffusion tower (10) and a gas turbine (11), and an oxygen detection device (8) is arranged between the cyclone dehydrator (6) and the three-way switching valve set (9).
2. The vanadium extraction converter gas recovery device of claim 1, wherein: the gas-water heat exchanger comprises a gas-water heat exchanger (12), wherein the gas-water heat exchanger (12) is communicated with a gas outlet of a gas turbine (11).
3. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: comprises a flue gas diffusing tower (13), and the gas-water heat exchange device (12) is communicated with the flue gas diffusing tower (13).
4. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: the device comprises a domestic water inlet pipe (18) and a domestic water outlet pipe which are communicated with a gas-water heat exchange device (12), wherein a lithium bromide absorption unit (15) is arranged at the domestic water outlet pipe.
5. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: the fine dust remover (5) is a venturi tube.
6. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: the gas turbine (11) is an ultra-low heating value fuel gas turbine.
7. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: the oxygen detection device (8) is an oxygen analyzer.
8. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: the dehydrator (6) is a cyclone dehydrator.
9. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: the device comprises a cooling water pipe (161), wherein the cooling water pipe (161) is communicated with the evaporation cooling flue (2) to realize heat exchange.
10. The vanadium extraction converter gas recovery device of claim 1 or 2, wherein: the device comprises a vanadium extraction converter cover (1), wherein the vanadium extraction converter cover (1) is communicated with a vaporization cooling flue (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362092.8A CN113088619A (en) | 2021-04-02 | 2021-04-02 | Vanadium extraction converter gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362092.8A CN113088619A (en) | 2021-04-02 | 2021-04-02 | Vanadium extraction converter gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113088619A true CN113088619A (en) | 2021-07-09 |
Family
ID=76673589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110362092.8A Pending CN113088619A (en) | 2021-04-02 | 2021-04-02 | Vanadium extraction converter gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113088619A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55152117A (en) * | 1979-05-17 | 1980-11-27 | Kawasaki Heavy Ind Ltd | Recovery apparatus for waste heat of converter exhaust gas treating apparatus |
| CN102628623A (en) * | 2012-04-20 | 2012-08-08 | 新奥科技发展有限公司 | Energy supply system |
| CN102851420A (en) * | 2012-09-12 | 2013-01-02 | 首钢总公司 | Steelmaking residual heat step recycling method |
| CN102899444A (en) * | 2012-10-26 | 2013-01-30 | 通化市五一环保科技股份有限公司 | System and method for treating converter flue gas |
| CN109837358A (en) * | 2019-03-26 | 2019-06-04 | 东北大学 | A kind of steel-making flue gas self-loopa top-bottom blowing system and method |
-
2021
- 2021-04-02 CN CN202110362092.8A patent/CN113088619A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55152117A (en) * | 1979-05-17 | 1980-11-27 | Kawasaki Heavy Ind Ltd | Recovery apparatus for waste heat of converter exhaust gas treating apparatus |
| CN102628623A (en) * | 2012-04-20 | 2012-08-08 | 新奥科技发展有限公司 | Energy supply system |
| CN102851420A (en) * | 2012-09-12 | 2013-01-02 | 首钢总公司 | Steelmaking residual heat step recycling method |
| CN102899444A (en) * | 2012-10-26 | 2013-01-30 | 通化市五一环保科技股份有限公司 | System and method for treating converter flue gas |
| CN109837358A (en) * | 2019-03-26 | 2019-06-04 | 东北大学 | A kind of steel-making flue gas self-loopa top-bottom blowing system and method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210709 |