CN1118380A - Process for producing high carbon content chrome iron - Google Patents
Process for producing high carbon content chrome iron Download PDFInfo
- Publication number
- CN1118380A CN1118380A CN 94111895 CN94111895A CN1118380A CN 1118380 A CN1118380 A CN 1118380A CN 94111895 CN94111895 CN 94111895 CN 94111895 A CN94111895 A CN 94111895A CN 1118380 A CN1118380 A CN 1118380A
- Authority
- CN
- China
- Prior art keywords
- zang
- high carbon
- major ingredient
- auxiliary material
- ore deposit
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The process for producing high-carbon ferrochromium uses chronic spinel difficult to dissolve and reduce, which is mined from Tibet, as main material, and coke, silica, lime, saw dust and dolomite as auxiliary ones, and features low energy consumption and high output ratio. Its slag contains SiO3 (27-30%), Al2O3 (22-25%), MgO (32-35%) and Cr2O3 (<6%).
Description
The present invention is the production method of high carbon ferro-chrome, and particularly the method for producing high carbon content chrome iron is adopted in main raw material picotite ore deposit.
High carbon ferro-chrome also claims carbon ferrochrome, and its carbon content is 6～10%, is mainly used in the high instrument of carbon content, die steel, stainless refractory steel etc., is the important alloying constituent of producing steel alloy.Existing method of producing high carbon ferro-chrome is produced by following technical process:
Major ingredient and auxiliary material be broken respectively → mix → be fed into stove → tap a blast furnace by prescription weighing → table.
Its major ingredient is the picotite ore deposit, and auxiliary material is coke, silica.Major ingredient picotite used in the prior art ore deposit is generally Yi Rong and easy reductive ore, and the picotite ore deposit that produce in China Tibet has insoluble and difficult reductibility, adopts existing method big with Zang Kuang production high carbon ferro-chrome energy consumption, and output capacity is low.So find the production method with producing high carbon content chrome iron so far, domestic many manufacturers all use easily molten and easy reduced ore and ore deposit, Tibetan mixed smelting.
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of and make the method that major ingredient is produced high carbon ferro-chrome with the Quan Zang ore deposit, and it is little to reach energy consumption, the output capacity height.
Solution of the present invention is: adopt existing technical process of producing high carbon ferro-chrome, major ingredient adopts the Quan Zang ore deposit, auxiliary material adopts coke, silica, lime, wood sawdust and rhombspar, and major ingredient and each auxiliary material dosage ratio are: Quan Zang ore deposit: coke: silica: lime: wood sawdust: rhombspar=1000: 200～250: 20～50: 10～40: 10～30: 0～30.The slag type that adopts aforesaid method to produce is a high melting-point slag type, contains SiO in the slag type
227～30%, Al
2O
322～25%, MgO32～35%, Cr
2O
3＜6%.
In the aforementioned production method, add wood sawdust,, increase the burner hearth ventilation property in order to remedy the deficiency of carbon.Add lime, rhombspar in order to mix residue adjustment, reduce sulphur, phosphorus content, overcome insoluble and the difficult reductibility of Zang Kuang in smelting process.
The present invention's advantage compared with prior art: the present invention has adopted the Quan Zang ore deposit to make major ingredient, has increased wood sawdust, lime and rhombspar in the auxiliary material, tackles the slag type mutually and adjusts, and has overcome insoluble and the difficult reductibility of Zang Kuang in smelting process.The high carbon ferro-chrome that adopts the inventive method to produce, it is about 50% to contain the yield rate of Cr60%, and energy consumption is low.
The present invention can further specify in conjunction with the embodiments.
Embodiment 1: the method for producing high carbon content chrome iron is pressed following technical process production:
Major ingredient and auxiliary material be broken respectively → mix → be fed into stove → tap a blast furnace by prescription weighing → table.
Its major ingredient adopts the Quan Zang ore deposit, and auxiliary material adopts coke, silica, lime, wood sawdust, and major ingredient with each auxiliary material dosage ratio is: Zang Kuang: sulphur content is less than 0.6% coke: silica: lime: wood sawdust=1000: 230: 43: 15: 25.Contain SiO in its slag type
228%, Al
2O
322%, MgO34%, Cr
2O
34.7%.
The method of embodiment 2, producing high carbon content chrome iron is pressed following technical process production:
Major ingredient and auxiliary material be broken respectively → mix → be fed into stove → tap a blast furnace by prescription weighing → table;
Its major ingredient adopts the Quan Zang ore deposit, and auxiliary material adopts sulphur content less than 0.6% coke, silica, lime, wood sawdust, rhombspar.Major ingredient with each auxiliary material dosage ratio is: Zang Kuang: sulphur content is less than 0.6% coke: silica: lime: wood sawdust: rhombspar=1000: 250: 40: 20: 20: 10.Contain SiO in its slag type
230%, Al
2O
324%, MgO33%, Cr
2O
35.1%.
Claims (3)
1, a kind of method of producing high carbon content chrome iron, undertaken by following technical process:
Major ingredient and auxiliary material be broken respectively → mix → be fed into stove → tap a blast furnace by prescription weighing → table;
It is characterized in that major ingredient adopts the Quan Zang ore deposit, auxiliary material is coke, silica, lime, wood sawdust and rhombspar, and wherein major ingredient with the dosage ratio of each auxiliary material is: Quan Zang ore deposit: coke: silica: lime: wood sawdust: rhombspar=1000: 200～250: 20～50: 10～40: 10～30: 0～30.
2, the method for producing high carbon content chrome iron according to claim 1 is characterized in that the major ingredient and the dosage ratio of each auxiliary material are: the Quan Zang ore deposit: sulphur content is less than 0.6% coke: silica: lime: wood sawdust=1000: 230: 43: 15: 25.
3, Jin Zang according to claim 1 ore deposit produces the method for high carbon ferro-chrome, it is characterized in that the major ingredient and the dosage ratio of each auxiliary material are: the Quan Zang ore deposit: sulphur content is less than 0.6% coke: silica: lime: wood sawdust: rhombspar=1000: 250: 40: 20: 20: 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111895 CN1118380A (en) | 1994-09-07 | 1994-09-07 | Process for producing high carbon content chrome iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111895 CN1118380A (en) | 1994-09-07 | 1994-09-07 | Process for producing high carbon content chrome iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1118380A true CN1118380A (en) | 1996-03-13 |
Family
ID=5035720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94111895 Pending CN1118380A (en) | 1994-09-07 | 1994-09-07 | Process for producing high carbon content chrome iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1118380A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300361C (en) * | 2004-03-22 | 2007-02-14 | 武汉科技大学 | Process for producing high-carbon-chromium iron |
| CN109136440A (en) * | 2018-08-06 | 2019-01-04 | 万国雄 | A kind of high carbon ferro-chrome composition and its smelting process |
| CN111876594A (en) * | 2020-08-06 | 2020-11-03 | 徐州宏阳新材料科技有限公司 | Furnace charge formula for improving ferrochrome smelting property and processing method thereof |
-
1994
- 1994-09-07 CN CN 94111895 patent/CN1118380A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300361C (en) * | 2004-03-22 | 2007-02-14 | 武汉科技大学 | Process for producing high-carbon-chromium iron |
| CN109136440A (en) * | 2018-08-06 | 2019-01-04 | 万国雄 | A kind of high carbon ferro-chrome composition and its smelting process |
| CN111876594A (en) * | 2020-08-06 | 2020-11-03 | 徐州宏阳新材料科技有限公司 | Furnace charge formula for improving ferrochrome smelting property and processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102978312B (en) | Blast furnace smelting process used for high-vanadium-titanium low-MgO furnace slag | |
| KR20070085069A (en) | A smelting process of ferronickel with nickel oxide ore free of crystal water in a blast furnace | |
| CN101525678A (en) | Method of replacing lime with limestone for slagging and producing steel in oxygen top blown converter | |
| CN103882181A (en) | Manganese-containing steel alloying process | |
| CN104313309A (en) | Technology and system for producing stainless steel by submerged arc furnace and AOD furnace duplex process | |
| CN110724784A (en) | Low-silicon high-phosphorus molten iron converter smelting method | |
| CN1088112C (en) | Flux and process for forming slag of converter | |
| CN111663071A (en) | Economical chromium-manganese stainless steel smelting production method and system thereof | |
| CN105755195B (en) | A method of molten steel is directly prepared from high-silicon iron ore | |
| CN204265815U (en) | Mineral hot furnace and AOD furnace duplex practice stainless steel production system | |
| CN100577840C (en) | Technique for directly smelting stainless steel from dephosphorization blast furnace molten iron in furnace | |
| CN1118380A (en) | Process for producing high carbon content chrome iron | |
| CN107619899A (en) | A kind of production method and Steel material of low remaining chromium content molten steel | |
| CN111575431A (en) | Method for increasing CO content of converter gas | |
| CN108624734A (en) | A method of decarbonized slag circulatory stove number in control converter less-slag melting technique | |
| CN101440419B (en) | Control method for smelting high carbon low phosphorus steel by converter | |
| CN108384916B (en) | Method for improving control capability of steelmaking converter blowing end point carbon | |
| CN1064714C (en) | Method for reforming slags system of smelting steel with low-Si molten iron or semisteel by using slag inclusion of converter as slag modifier | |
| CN103614506B (en) | A kind of converter steel making method using little grade high basicity sinter | |
| CN1706974A (en) | Vanadium extracting process | |
| CN113957185A (en) | Furnace charge formula for smelting vanadium-titanium magnetite in blast furnace | |
| CN1211495C (en) | Method for smelting chromium-contg. melted iron with powder ore cooled agglomerated pellet | |
| CN111961803A (en) | Production process and method of industrial pure iron | |
| CN102352421B (en) | Process for smelting industrial pure iron with converter waste slag ball iron | |
| CN1172010C (en) | process for producing low-Ti High-C ferrochronium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |