CN1654684A - Smelting method for total vanadium and titanium magnetite in blast furnace - Google Patents
Smelting method for total vanadium and titanium magnetite in blast furnace Download PDFInfo
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- CN1654684A CN1654684A CN 200510020398 CN200510020398A CN1654684A CN 1654684 A CN1654684 A CN 1654684A CN 200510020398 CN200510020398 CN 200510020398 CN 200510020398 A CN200510020398 A CN 200510020398A CN 1654684 A CN1654684 A CN 1654684A
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Abstract
The blast furnace smelting method adopts special Panxi high-Ti type V-Ti iron concentrate as main material. The materials including SiO2 IN 1-5 wt% and high-Ti type V-Ti iron concentrate in 95-99 wt% are sintered with binary alkali to obtain sintered ore, and the sintered ore is smelted at 1390-1440 deg.c with the slag possessing TiO2 less than 23 %. The said smelting method has the advantages of full use of the special Panxi V-Ti iron ore resource, no contamination of iron water and beneficial elements, no dilution to V and other beneficial elements in iron water, and low cost.
Description
Affiliated field
The present invention relates to a kind of smelting technology, particularly a kind of V-Ti-magnetite blast furnace smelting method.
Background technology
The abundant vanadium titano-magnetite of Panxi Diqu is a high titanium type, be world's mineral of difficult smelting, country is in order to develop these valuable resources, front and back concentrate for three times national strength to carry out research of technique, invented the smelting technology of Chinese uniqueness, be that spray gun adds corresponding slag making smelting technology, solved the problem of tapping a blast furnace.
Climb the seventies after the steel operation, operation of blast furnace has some setbacks, and the capacity factor of a blast furnace is not high, is lower than 1 for a long time, the loss of enterprise, and production is difficult to tissue.It is to produce to join the ore deposit with the ore deposit that current tackling key problem changes prepurging, and operation of blast furnace is normal, and output improves gradually, has broken through 1.7 design utilization coefficient, climbs steel and moves towards profit.
The middle and later periods eighties tackles key problems for the third time, continue to improve the result that tackles key problems for the second time, that carries out high low-grade and usefulness in joining the ore deposit joins the ore deposit system, has cancelled spray gun, has realized coal powder injection, oxygen enrichment, computer control, utilization coefficient breaks through 2.0, every year new breakthrough is arranged all later on, has broken through 2.5 at present, come out at the top in the world, but this technology also has significant limitation:
1, joins ore resources and peter out, can't satisfy the needs of climbing the steel production development;
2, the difficult problem polluted of the pig iron and vanadium goods is difficult to overcome;
3, the beneficial elements such as vanadium that contain in the molten iron are diluted, and vanadiumcontent drops to present 0.27%--0.28% from 0.4% of V-Ti-magnetite, has increased the consumption of vanadium extraction, has improved cost.The mechanism that schreyerite is smelted does not have unified view at present, and what have thinks dilution, and what have thinks restriction, and what have thinks balance, and There are many different versions of a story, and the developing direction of schreyerite smelting technology is what just it is hard to tell.
Summary of the invention
Purpose of the present invention promptly is to overcome the shortcoming of prior art, a kind of V-Ti-magnetite blast furnace smelting method that need not join the ore deposit is provided, it can overcome the difficult problem that the pig iron and vanadium goods are polluted, and containing beneficial elements such as vanadium and can not be diluted in the molten iron can reduce the cost of vanadium extraction.
Purpose of the present invention is achieved through the following technical solutions: V-Ti-magnetite blast furnace smelting method, and selecting the distinctive high-Ti type V-Ti magnetite concentrate of Panxi Diqu for use is raw material, at first prepares burden, the weight percent of furnish component is SiO
21～5%, high-Ti type V-Ti magnetite concentrate 99%～95% utilizes sintered material, adopts dual alkalinity, gets agglomerate; Advance stove then, Control for Kiln Temperature is at 1390～1440 ℃; Come out of the stove at last, the ratio of titanium dioxide is less than 23% in the slag.
According to SiO in the concentrate
2And TiO
2Content decide SiO in the batching
2Content.
By top narration as can be seen, the present invention has the following advantages: 1, abundant alum titanomagnetite development of resources provides sufficient resource to guarantee to China's Panxi Diqu in the utilization of present technique, has removed joining the dependence in ore deposit;
2, molten iron and the beneficial element pollution that causes in the ore deposit joined in the common ore deposit of having avoided China now to adopt;
3, avoided joining common ore deposit and caused dilution beneficial elements such as vanadium in the molten iron;
4, the material aboundresources is gathered materials on the spot, and has saved common chief of a pit way transport charge, has reduced production cost;
5, containing beneficial element such as vanadium in the molten iron increases more than the 1kg/t, increases to be worth more than 200 yuan/t, and iron loss reduces in the vanadium extraction, joins the minimizing of ore deposit freight charges, can increase income more than 300 yuan for these three.
6, iron and slag are mobile very good, do not have an accident, and it is much better that economic and technical norms also match well ore deposit production, and organization of production is more simple, can large-scale promotion.
Embodiment
The present invention will be further described below by embodiment:
Embodiment 1: V-Ti-magnetite blast furnace smelting method, and selecting the distinctive high-Ti type V-Ti magnetite concentrate of Panxi Diqu for use is raw material, at first prepares burden, the weight percent of furnish component is SiO
2In 2%, high-Ti type V-Ti magnetite concentrate utilizes sintered material more than 98%, adopts dual alkalinity, gets agglomerate; Advance stove then, Control for Kiln Temperature is at 1400 ℃; Come out of the stove at last, the ratio of titanium dioxide is 22% in the slag.According to the SiO in the concentrate
2And TiO
2Content decide SiO in the batching
2Content.
Embodiment 2: V-Ti-magnetite blast furnace smelting method, and selecting the distinctive high-Ti type V-Ti magnetite concentrate of Panxi Diqu for use is raw material, at first prepares burden, the weight percent of furnish component is SiO
21%, high-Ti type V-Ti magnetite concentrate utilizes sintered material more than 99%, adopts dual alkalinity, gets agglomerate; Advance stove then, Control for Kiln Temperature is at 1400 ℃; Come out of the stove at last, the ratio of titanium dioxide is 20% in the slag.According to the SiO in the concentrate
2And TiO
2Content decide SiO in the batching
2Content.
Claims (2)
1, V-Ti-magnetite blast furnace smelting method is characterized in that: selecting the distinctive high-Ti type V-Ti magnetite concentrate of Panxi Diqu for use is raw material, at first prepares burden, and the weight percent of furnish component is SiO
21～5%, high-Ti type V-Ti magnetite concentrate 99%～95% utilizes sintered material, adopts dual alkalinity, gets agglomerate; Advance stove then, Control for Kiln Temperature is at 1390～1440 ℃; Come out of the stove at last, the ratio of titanium dioxide is less than 23% in the slag.
2, V-Ti-magnetite blast furnace smelting method according to claim 1 is characterized in that: according to the SiO in the concentrate
2And TiO
2Content decide SiO in the batching
2Content.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020398 CN1654684A (en) | 2005-02-23 | 2005-02-23 | Smelting method for total vanadium and titanium magnetite in blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510020398 CN1654684A (en) | 2005-02-23 | 2005-02-23 | Smelting method for total vanadium and titanium magnetite in blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1654684A true CN1654684A (en) | 2005-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510020398 Pending CN1654684A (en) | 2005-02-23 | 2005-02-23 | Smelting method for total vanadium and titanium magnetite in blast furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN1654684A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220441A (en) * | 2011-06-01 | 2011-10-19 | 邓元忠 | Detection and analysis method for use in blast-furnace smelting of high-titanium all vanadium titanium ore |
| CN115198115A (en) * | 2022-06-24 | 2022-10-18 | 岳庆丰 | Method for preparing rock wool and vanadium-containing pig iron by smelting stone coal vanadium ore in blast furnace |
-
2005
- 2005-02-23 CN CN 200510020398 patent/CN1654684A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102220441A (en) * | 2011-06-01 | 2011-10-19 | 邓元忠 | Detection and analysis method for use in blast-furnace smelting of high-titanium all vanadium titanium ore |
| CN115198115A (en) * | 2022-06-24 | 2022-10-18 | 岳庆丰 | Method for preparing rock wool and vanadium-containing pig iron by smelting stone coal vanadium ore in blast furnace |
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