CN1087684A - Method with smelting duriron with raw coal - Google Patents
Method with smelting duriron with raw coal Download PDFInfo
- Publication number
- CN1087684A CN1087684A CN 93119508 CN93119508A CN1087684A CN 1087684 A CN1087684 A CN 1087684A CN 93119508 CN93119508 CN 93119508 CN 93119508 A CN93119508 A CN 93119508A CN 1087684 A CN1087684 A CN 1087684A
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- CN
- China
- Prior art keywords
- raw coal
- smelting
- charcoal
- ferrosilicon
- coke
- 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.)
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- Manufacture And Refinement Of Metals (AREA)
- Silicon Compounds (AREA)
Abstract
The invention discloses a kind of method with smelting duriron with raw coal, it is directly to use raw coal as reductive agent, coke for replacing, and blue charcoal and charcoal carry out ferrosilicon smelting.It is low that the present invention has a production cost, quality product, output height, and energy consumption is low, and reduces the advantages such as pollution to environment, can be widely used in the production occasions such as smelting factory of ferrosilicon.
Description
The invention belongs to the melting method of a kind of manufacture method of black alloy, particularly a kind of ferrosilicon.
At present, domestic in the method for smelting duriron, all adopt coke as reductive agent, (as Chinese patent application 87106762.5,92103047.9), so on the one hand because coke price height increases production cost, the ferrosilicon aluminum content height of producing on the other hand generally also must add blue charcoal or charcoal and be controlled.
The objective of the invention is to: provide a kind of and come the novel method of smelting duriron, thereby reduce production costs greatly, and can improve the quality of products and output without coke and blue charcoal, charcoal.
The present invention is achieved in that and directly adopts raw coal as reductive agent, whole instead of coke, and blue charcoal and charcoal, by silica, raw coal, iron charge are formed smelting furnace material and are smelted.
The present invention compared with prior art has and produces that this is low, quality product height, output advantages of higher.Because the raw coal price is a coke, the 1/2-1/5 of blue carbon and charcoal price, thereby can reduce production costs greatly, and the fugitive constituent of raw coal is separated out when 400 ℃ of left and right sides and airborne oxygen reaction burning, forms high temperature, improves temperature (but not reaching this point with coke) in the stove, power consumption is reduced, output improves, and raw coal does not also need to smelt, and has reduced environmental pollution and energy consumption.
Embodiments of the invention: produce 1 ton of 75 ferrosilicon, select the 1800KVA smelting furnace for use, its proportioning raw materials is:
1, ash＜10 raw coal 56kg(weight %), fugitive constituent＜10, fixed carbon 78-80.
2, SiO silica 100kg(weight %)
299, Al
2O
30.5, Fe
2O
30.1 other is 0.4 years old.
3, iron filings 10kg
Produce with conventional smelting duriron method by above proportioning, just can produce 1 ton of 75 ferrosilicon with 17 batch of materials, its Chemical Composition is as follows:
Si＞76，Al＜1.5，P＜0.04，S＜0.02，C＜0.2
Be up to state standards.
Claims (1)
1, a kind of method with smelting duriron with raw coal is characterized in that: directly adopt raw coal as going back principle, come instead of coke and blue charcoal, charcoal carries out the smelting of ferrosilicon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93119508 CN1044261C (en) | 1993-10-25 | 1993-10-25 | Method for smelting duriron with raw coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93119508 CN1044261C (en) | 1993-10-25 | 1993-10-25 | Method for smelting duriron with raw coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1087684A true CN1087684A (en) | 1994-06-08 |
| CN1044261C CN1044261C (en) | 1999-07-21 |
Family
ID=4992965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93119508 Expired - Fee Related CN1044261C (en) | 1993-10-25 | 1993-10-25 | Method for smelting duriron with raw coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044261C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053640C (en) * | 1998-01-06 | 2000-06-21 | 鞠远峰 | Method for prepn. of metal silicon, and reducing agent therefor |
| CN105195748A (en) * | 2015-09-30 | 2015-12-30 | 黄穗 | Method for preparing silicon-containing reduced iron fine powder |
-
1993
- 1993-10-25 CN CN 93119508 patent/CN1044261C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053640C (en) * | 1998-01-06 | 2000-06-21 | 鞠远峰 | Method for prepn. of metal silicon, and reducing agent therefor |
| CN105195748A (en) * | 2015-09-30 | 2015-12-30 | 黄穗 | Method for preparing silicon-containing reduced iron fine powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1044261C (en) | 1999-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |