CN2661699Y - Continuous desulphurization equipment for blast furnace liquid iron - Google Patents
Continuous desulphurization equipment for blast furnace liquid iron Download PDFInfo
- Publication number
- CN2661699Y CN2661699Y CN 03205072 CN03205072U CN2661699Y CN 2661699 Y CN2661699 Y CN 2661699Y CN 03205072 CN03205072 CN 03205072 CN 03205072 U CN03205072 U CN 03205072U CN 2661699 Y CN2661699 Y CN 2661699Y
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- Prior art keywords
- desulfurization
- pit
- residue
- keeping away
- avoiding
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- Expired - Fee Related
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model relates to a continuous desulfurization unit for BF hot metal, solving the problem for the hot metal desulfurization continuity that other desulfurization station does not need to be built. Former residue-avoiding pit for the iron runner is deepened and enlarged; a desulfurization spray is inserted at the back of the barricade inside the residue-avoiding pit; other small pit for avoiding desulfurization residue is arranged at the back of the residue-avoiding pit for the iron runner; a residue-removing device is arranged between the residue-avoiding pit and the small pit. The desulfurization result can meet requirements from a plurality of steel grades during steelmaking process.
Description
Technical field: the utility model belongs to a kind of desulfurizer.
Background technology: desulfurizing iron has the kinds of processes method both at home and abroad at present, the representative external desulfurization of hot metal method of industrial use has suspension system, mechanical mixing method, blowing process, airlift pump circulation doctor treatment etc., nearly all sulfur removal technology all will drop into substantial contribution and set up desulfurization station special-purpose, that occupy suitable place, and is that discontinuity is carried out desulfurizing iron.For carrying out continuous desulfurization of molten iron in the blast furnace casting process, only rest on the experimental stage that the surface of the molten iron in the casting runner is sprayed, blown sweetening agent.
Goal of the invention: the purpose of this utility model is, a kind of blast-melted continuous desulfurization device is provided, and need not build the desulfurization station that accounts for suitable place again, but continuous desulfurization, and sweetening effectiveness can satisfy the most of steel grade needs of steel making working procedure.
Technical scheme: according to the size of blast furnace, keep away that pit is deepened, capacity strengthens with trough is former, as the desulfurization station, the agent of desulphurization spray gun blowing desulfurization is inserted in the back of barricade in keeping away pit, desulfurization is carried out in stirring mobile naturally and spray gun by molten iron, establish one in addition in the back that trough is kept away pit and keep away the pitting of desulfurization slag, molten iron after the desulfurization and desulfurization slag are kept away the slag pitting through trough by second desulfurization slag are blocked from keeping away the pit overflow, and molten iron flows into the molten iron container through this.When the amount of tapping a blast furnace is big, can the device of skimming be set keeping away between pit and the pitting.For preventing that sweetening agent from flying upward, can a dw be set on the pit keeping away.
Beneficial effect: the utility model is owing to adopt technique scheme, and it is simple to have technology, saves space less investment, the advantage that cost is low.And because desulfurization is the molten iron temperature height, and dynamic conditions is good, so sweetening effectiveness is good, desulfurization degree can reach more than 50%, and iron loss is few, and temperature drop is little, flow process is short, can realize controlling automatically according to iron flow the consumption of sweetening agent.Treated molten iron can satisfy the most of steel grade needs of steel making working procedure.
Description of drawings: Fig. 1 is for originally making the structural representation of utility model.
Embodiment: as shown in the figure, size according to blast furnace, keep away that pit 1 is deepened, capacity strengthens with trough 7 is former, as the desulfurization station, desulphurization spray gun 3 blowing desulfurization agent are inserted in the back of barricade 2 in keeping away pit 1, desulfurization is carried out in stirring mobile naturally and spray gun 3 by molten iron, establish one in addition in the back that trough is kept away pit 1 and keep away the pitting 4 of desulfurization slag, molten iron after the desulfurization and desulfurization slag are kept away slag pitting 4 through trough 7 by second desulfurization slag are blocked from keeping away pit 1 overflow, and molten iron flows into the molten iron container through this.When the amount of tapping a blast furnace is big, can the device 5 of skimming be set keeping away between pit 1 and the pitting 4.For preventing that sweetening agent from flying upward, can a dw 6 be set on the pit 1 keeping away.
Claims (3)
1, a kind of blast-melted continuous desulfurization device is characterized in that: the former pit of keeping away of trough is deepened, strengthened, and the back of barricade is provided with desulphurization spray gun in keeping away pit, keeps away the back of pit in trough and establishes the pitting of keeping away desulfurization slag in addition.
2, according to the described stove continuous desulfurization of molten iron of claim 1 device, it is characterized in that: the device of skimming is set keeping away between pit and the pitting.
3, according to claim 1 or 2 described stove continuous desulfurization of molten iron devices, it is characterized in that: be provided with dust excluding hood on the pit keeping away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205072 CN2661699Y (en) | 2003-07-22 | 2003-07-22 | Continuous desulphurization equipment for blast furnace liquid iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03205072 CN2661699Y (en) | 2003-07-22 | 2003-07-22 | Continuous desulphurization equipment for blast furnace liquid iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2661699Y true CN2661699Y (en) | 2004-12-08 |
Family
ID=34324256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03205072 Expired - Fee Related CN2661699Y (en) | 2003-07-22 | 2003-07-22 | Continuous desulphurization equipment for blast furnace liquid iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2661699Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779690A (en) * | 2014-12-22 | 2016-07-20 | 北大方正集团有限公司 | Molten iron outer-furnace silicon adding method and method for producing foundry pig iron through molten iron outer-furnace silicon adding |
| CN107790649A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | Method for directly and continuously casting molten iron into steel billet |
| CN113748218A (en) * | 2019-05-24 | 2021-12-03 | 塔塔钢铁荷兰科技有限责任公司 | Apparatus and method for continuous desulfurization of liquid molten metal |
| CN114959158A (en) * | 2022-05-31 | 2022-08-30 | 本钢板材股份有限公司 | Efficient desulfurization, desilicication and dephosphorization method for molten iron runner self-rotating flow |
| CN115044717A (en) * | 2022-05-24 | 2022-09-13 | 中冶华天工程技术有限公司 | Blast furnace system fly ash resource utilization method and device |
-
2003
- 2003-07-22 CN CN 03205072 patent/CN2661699Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105779690A (en) * | 2014-12-22 | 2016-07-20 | 北大方正集团有限公司 | Molten iron outer-furnace silicon adding method and method for producing foundry pig iron through molten iron outer-furnace silicon adding |
| CN105779690B (en) * | 2014-12-22 | 2018-10-09 | 北大方正集团有限公司 | Increase the method for increasing silicon production foundry iron outside silicon method and molten iron furnace outside molten iron furnace |
| CN107790649A (en) * | 2016-08-31 | 2018-03-13 | 鞍钢股份有限公司 | Method for directly and continuously casting molten iron into steel billet |
| CN107790649B (en) * | 2016-08-31 | 2019-06-25 | 鞍钢股份有限公司 | Method for directly and continuously casting molten iron into steel billet |
| CN113748218A (en) * | 2019-05-24 | 2021-12-03 | 塔塔钢铁荷兰科技有限责任公司 | Apparatus and method for continuous desulfurization of liquid molten metal |
| CN113748218B (en) * | 2019-05-24 | 2023-07-14 | 塔塔钢铁荷兰科技有限责任公司 | Apparatus and method for continuous desulfurization of liquid molten metal |
| CN115044717A (en) * | 2022-05-24 | 2022-09-13 | 中冶华天工程技术有限公司 | Blast furnace system fly ash resource utilization method and device |
| CN114959158A (en) * | 2022-05-31 | 2022-08-30 | 本钢板材股份有限公司 | Efficient desulfurization, desilicication and dephosphorization method for molten iron runner self-rotating flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |