CN103695582B - Dehumidification v-bearing titanomagnetite smelting state modulator technology - Google Patents
Dehumidification v-bearing titanomagnetite smelting state modulator technology Download PDFInfo
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- CN103695582B CN103695582B CN201310729074.4A CN201310729074A CN103695582B CN 103695582 B CN103695582 B CN 103695582B CN 201310729074 A CN201310729074 A CN 201310729074A CN 103695582 B CN103695582 B CN 103695582B
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Abstract
The invention discloses dehumidification v-bearing titanomagnetite smelting state modulator technology, it is characterized in that, comprise the control of following parameter: A, dehumidification degree scope control; B, coke load scope control; C, blast furnace [Si+Ti] value control; D, blast furnace top pressure promote; Wherein de-humid control is at 7.0 ± 0.5g/m3; The scope of coke load is 4.5 ~ 4.7; The scope of [Si+Ti] value is 0.2% ~ 0.4%; The scope control of blast furnace top pressure is at 170 ~ 175KPa.The invention provides a kind of dehumidification v-bearing titanomagnetite smelting state modulator technology, reduce the impact of atmospheric moisture in production process, reduce smelting difficulty, avoid blast furnace fluctuation, improve security and the yield rate of smelting.
Description
Technical field
The present invention relates to a kind of steel-smelting technology, relate to the state modulator technology used in a kind of dehumidification v-bearing titanomagnetite smelting specifically.
Background technology
Iron and steel has high requirement to material and environment in the process of smelting, especially the moisture content in material and the humidity in environment have very large impact to the smelting process of iron and steel and final argument, and the natural characteristics that v-bearing titanomagnetite smelting is different from the refining of common mining and metallurgy due to it requires particularly harsh.In Sichuan province, atmospheric moisture differs very large in summer with winter, so just can have an impact to the moisture fluctuation in starting material, in the process of smelting, atmospheric moisture also can have an impact to whole process simultaneously, causes the working of a furnace frequently to fluctuate, and then larger difficulty is brought to smelting, cause blast furnace not normal time serious, cause larger loss, reduce the yield rate of smelting, improve the input of production cost, be unfavorable for the development and progression of enterprise.And although prior art has made some reactions to this phenomenon, but be also only, on blast furnace, air blow for removing moisture device is installed, not a set of perfect technical controlling standard, many times be difficult to the effect reaching institute's phase, produce and also can cause disadvantageous effect to smelting process on the contrary, thus cause fluctuation.
Summary of the invention
In view of this, the invention provides a kind of dehumidification v-bearing titanomagnetite smelting state modulator technology, reduce the impact of atmospheric moisture in production process, reduce smelting difficulty, avoid blast furnace fluctuation, improve security and the yield rate of smelting.
For solving above technical problem, technical scheme of the present invention is:
Dehumidification v-bearing titanomagnetite smelting state modulator technology, comprises the control of following parameter:
A, dehumidification degree scope control;
B, coke load scope control;
C, blast furnace [Si+Ti] value control;
D, blast furnace top pressure promote.
The scope control of the degree of dehumidification described in A completes by installing air blow for removing moisture device on blast furnace, will take off humid control at 7.0 ± 0.5g/m3 by air blow for removing moisture device.
The scope of the coke load described in B is 4.5 ~ 4.7, controls the method that this coke meets scope and is divided into again direct method and indirect method.
As preferably, described direct method is control coke load by changing the ore coke ratio number often criticizing furnace charge in blast furnace.
Preferred as another kind, described indirect method is that first concentrated or compartment of terrain loads some crowdes of clean burnt or empty Jiao to blast furnace, then in charge backward, add or do not add corresponding ore and flux to alleviate coke load, with this, coke load is controlled in the scope of 4.5 ~ 4.7.
The scope of [Si+Ti] value in controlling blast furnace [Si+Ti] value described in C is 0.2% ~ 0.4%.
As preferably, described [Si+Ti] value assigns to control by the ash controlled in SiO2, coke and the coal dust in raw material.
As preferably, described [Si+Ti] value is also controlled by blast furnace top pressure size, and wherein blast furnace top pressure higher [Si+Ti] value is just lower.
Blast furnace top pressure described in D is controlled by the blast furnace top pressure Controlling System be arranged on blast furnace, and by the scope control of blast furnace top pressure at 170 ~ 175KPa.
Compared with prior art, the present invention has following beneficial effect:
The present invention controls by entering parameter to the dehumidification degree in v-bearing titanomagnetite smelting, coke load, [Si+Ti] value and blast furnace top pressure, also avoid blast furnace while atmospheric moisture and produced as strong fluctuation in process of production reducing in production process, substantially increase the security of production, also reduce the difficulty of smelting, improve the yield rate of product, thus reduce the burden of enterprise, improve economic benefit.
Embodiment
Core thinking of the present invention is, provides a kind of dehumidification v-bearing titanomagnetite smelting state modulator technology, reduces the impact of atmospheric moisture in production process, reduce smelting difficulty, avoids blast furnace fluctuation, improves security and the yield rate of smelting.
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment
Dehumidification v-bearing titanomagnetite smelting state modulator technology, comprises the control of following parameter:
A, dehumidification degree scope control;
B, coke load scope control;
C, blast furnace [Si+Ti] value control;
D, blast furnace top pressure promote.
The scope control of the degree of dehumidification described in A completes by installing air blow for removing moisture device on blast furnace, will take off humid control at 7.0 ± 0.5g/m3 by air blow for removing moisture device.
The scope of the coke load described in B is 4.5 ~ 4.7, controls the method that this coke meets scope and is divided into again direct method and indirect method.
As preferably, described direct method is control coke load by changing the ore coke ratio number often criticizing furnace charge in blast furnace.
Preferred as another kind, described indirect method is that first concentrated or compartment of terrain loads some crowdes of clean burnt or empty Jiao to blast furnace, then in charge backward, add or do not add corresponding ore and flux to alleviate coke load, with this, coke load is controlled in the scope of 4.5 ~ 4.7.
The scope of [Si+Ti] value in controlling blast furnace [Si+Ti] value described in C is 0.2% ~ 0.4%.
As preferably, described [Si+Ti] value assigns to control by the ash controlled in SiO2, coke and the coal dust in raw material.
As preferably, described [Si+Ti] value is also controlled by blast furnace top pressure size, and wherein blast furnace top pressure higher [Si+Ti] value is just lower.
Blast furnace top pressure described in D is controlled by the blast furnace top pressure Controlling System be arranged on blast furnace, and by the scope control of blast furnace top pressure at 170 ~ 175KPa.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. dehumidification v-bearing titanomagnetite smelting parameter control method, is characterized in that, comprises the control of following parameter:
A, dehumidification degree scope control;
B, coke load scope control;
C, blast furnace [Si+Ti] value control;
D, blast furnace top pressure promote;
The scope control of dehumidification degree described in described A completes by installing air blow for removing moisture device on blast furnace, will take off humid control at 7.0 ± 0.5g/m by air blow for removing moisture device
3;
The scope of the coke load described in described B is 4.5 ~ 4.7, controls the method that this coke meets scope and is divided into again direct method and indirect method;
The scope of [Si+Ti] value in controlling blast furnace [Si+Ti] value described in described C is 0.2% ~ 0.4%;
Blast furnace top pressure described in described D is controlled by the blast furnace top pressure Controlling System be arranged on blast furnace, and by the scope control of blast furnace top pressure at 170 ~ 175KPa.
2. dehumidification v-bearing titanomagnetite smelting parameter control method according to claim 1, is characterized in that, described direct method is control coke load by changing the ore coke ratio number often criticizing furnace charge in blast furnace.
3. dehumidification v-bearing titanomagnetite smelting parameter control method according to claim 2, it is characterized in that, described indirect method is that first concentrated or compartment of terrain loads some crowdes of clean burnt or empty Jiao to blast furnace, then in charge backward, add or do not add corresponding ore and flux to alleviate coke load, with this, coke load is controlled in the scope of 4.5 ~ 4.7.
4. dehumidification v-bearing titanomagnetite smelting parameter control method according to claim 1, is characterized in that, described [Si+Ti] value is by controlling the SiO in raw material
2, ash in coke and coal dust assigns to control.
5. dehumidification v-bearing titanomagnetite smelting parameter control method according to claim 4, is characterized in that, described [Si+Ti] value is also controlled by blast furnace top pressure size, and wherein blast furnace top pressure higher [Si+Ti] value is just lower.
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| CN201310729074.4A CN103695582B (en) | 2013-12-25 | 2013-12-25 | Dehumidification v-bearing titanomagnetite smelting state modulator technology |
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| CN201310729074.4A CN103695582B (en) | 2013-12-25 | 2013-12-25 | Dehumidification v-bearing titanomagnetite smelting state modulator technology |
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| CN103695582B true CN103695582B (en) | 2015-09-09 |
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| CN104232822B (en) * | 2014-09-28 | 2016-08-24 | 四川德胜集团钒钛有限公司 | The method of high-phosphor oolitic hematite vanadium titano-magnetite blast furnace ironmaking |
Citations (3)
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|---|---|---|---|---|
| CN1151439A (en) * | 1995-11-30 | 1997-06-11 | 承德钢铁公司 | Method of blowing-in furnace for smelting whole sefstromite using sefstromite blast furnace |
| CN101476001A (en) * | 2008-12-18 | 2009-07-08 | 攀钢集团成都钢铁有限责任公司 | Method for smelting medium titanium slag by blast furnace |
| CN102978312A (en) * | 2012-12-13 | 2013-03-20 | 四川省川威集团有限公司 | Blast furnace smelting process used for high-vanadium-titanium low-MgO furnace slag |
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2013
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1151439A (en) * | 1995-11-30 | 1997-06-11 | 承德钢铁公司 | Method of blowing-in furnace for smelting whole sefstromite using sefstromite blast furnace |
| CN101476001A (en) * | 2008-12-18 | 2009-07-08 | 攀钢集团成都钢铁有限责任公司 | Method for smelting medium titanium slag by blast furnace |
| CN102978312A (en) * | 2012-12-13 | 2013-03-20 | 四川省川威集团有限公司 | Blast furnace smelting process used for high-vanadium-titanium low-MgO furnace slag |
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| 张之晓等.承钢新4#(2500m3)高炉钒钛矿冶炼强化生产实践.《2012年全国炼铁生产技术会议暨炼铁学术年会文集(上)》.2012,第154-161页. * |
| 攀钢西昌钢钒1号高炉开炉达产实践;黄云;《炼铁》;20130228;第32卷(第1期);第1、2节，表2 * |
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Inventor after: He Yixian Inventor after: Jiang Qingfang Inventor after: Liu Tao Inventor after: Xu Yu Inventor before: He Yixian Inventor before: Jiang Qingfang Inventor before: Liu Tao Inventor before: Xu Yu Inventor before: Song Dean |
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