CN103484682A - Method for adopting nickel or copper smelting waste slag for ferrosilicon smelting - Google Patents
Method for adopting nickel or copper smelting waste slag for ferrosilicon smelting Download PDFInfo
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- CN103484682A CN103484682A CN201210194589.4A CN201210194589A CN103484682A CN 103484682 A CN103484682 A CN 103484682A CN 201210194589 A CN201210194589 A CN 201210194589A CN 103484682 A CN103484682 A CN 103484682A
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- nickel
- waste slag
- ferrosilicon
- copper smelting
- smelting waste
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The present invention relates to utilization of nickel or copper smelting waste slag, particularly to a method for adopting nickel or copper smelting waste slag for ferrosilicon smelting. The method comprises: screening, wherein nickel or copper smelting waste slag is screened, and particles with a diameter of 2-5 mm are retained; smelting, wherein the screened nickel or copper smelting waste slag, silica, semi-coke and pellet ore are poured into a furnace to smelt; and iron discharging, wherein slag iron is separated. The method has the following effects that: the nickel or copper smelting waste slag for producing ferrosilicon is a good iron product furnace material; the waste resource reuse problem is well solved with the technical scheme; the Fe content in the nickel or copper smelting waste slag is high, such that consumption of steel chips, pellet ore or oxide skin and other iron products during the ferrosilicon smelting process is reduced so as to substantially reduce production cost and expand types of iron product furnace materials in ferrosilicon production; and positive effects are provided for ferrosilicon production and even the ferroalloy industry.
Description
Technical field
The present invention relates to the utilization to nickel or copper smelting waste slag, relate in particular to a kind of nickel or the copper smelting waste slag method for ferrosilicon smelting.
Background technology
Castaway slag after metallic nickel or copper are smelted, well rationally do not utilize, and the outside sale of the nickel of some enterprise or copper smelting waste slag is not gone out, and taken a large amount of places and stacked, and so not only was unfavorable for environmental protection but also wasted resource.
In known ferrosilicon production process, the ferrous products furnace charge is very single in addition, only with steel cuttings, pellet, oxide skin etc., makes alloy addition and produces ferrosilicon; And using these ferrous products costs constantly to rise, we produce the bottleneck of ferrosilicon to become restriction.
Summary of the invention
The object of the present invention is to provide a kind of nickel or the copper smelting waste slag a kind of embodiment for the method for ferrosilicon smelting, with expectation, can solve existing nickel or the copper smelting waste slag utilization ratio is not high, and the too high problem of ferrosilicon production cost.
For addressing the above problem, the technical solution used in the present invention is:
A kind of nickel or copper smelting waste slag are for the method for ferrosilicon smelting, and its method is as follows:
Screening, screened nickel or copper smelting waste slag, retains the particle of diameter 2-5 millimeter;
Smelt, the nickel after screening or copper smelting waste slag, silica, blue charcoal, pellet are dropped in stove and smelt;
Tap a blast furnace, separate slag iron.
For making the present invention play better technique effect:
Further technical scheme is that above-mentioned nickel or copper smelting waste slag weight percent is 3%-6%, and the silica weight percent is 56%-53%, and blue charcoal weight percent is 33%-35%, and the pellet weight percent is 8%-6%.
Further technical scheme is that in above-mentioned screening, the iron level in nickel or copper smelting waste slag is more than or equal to 35%.
Further technical scheme is that the fabric height that forms of nickel in above-mentioned stove or copper smelting waste slag, silica, blue charcoal, pellet is below 400mm.
The beneficial effect that adopts technique scheme to produce is:
In the ferrosilicon smelting process with nickel or copper smelting waste slag as furnace charge, found the new approach that utilizes to nickel or copper smelting waste slag, realize reusing of energy source, both can economize on resources, can reduce the pollution to environment again.
Produce ferrosilicon with nickel or copper smelting waste slag as furnace charge, can effectively reduce the consumption of the ferrous productss such as pellet, steel cuttings or oxide skin, reduce ferrosilicon production unit consumption simultaneously, thereby greatly reduce production cost, the present invention has opened up ferrosilicon and has produced the furnace charge kind.
In sum, utilizing nickel or copper smelting waste slag to produce ferrosilicon is extraordinary ferrous products furnace charge, and this technological invention has simultaneously well solved waste material recycling problem.Its Fe content of nickel or copper smelting waste slag is high, in the ferrosilicon smelting process, has reduced the consumption of the ferrous productss such as steel cuttings, pellet or oxide skin, greatly reduces production costs, and has opened up ferrosilicon and has produced ferrous products furnace charge kind.Ferrosilicon production and even the ferroalloy industry have been played to positive effect.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
A kind of nickel or copper smelting waste slag are for the method for ferrosilicon smelting, and its method is as follows:
Screening, screened nickel or copper smelting waste slag, retains the particle of diameter 2-5 millimeter;
Smelt, the nickel after screening or copper smelting waste slag, silica, blue charcoal, pellet are dropped in stove and smelt;
Tap a blast furnace, separate slag iron.
According to the present invention, a kind of nickel or copper smelting waste slag are for an embodiment of the method for ferrosilicon smelting, nickel wherein or copper smelting waste slag weight percent are 3%-6%, the silica weight percent is 56%-53%, and blue charcoal weight percent is 33%-35%, and the pellet weight percent is 8%-6%.
According to the present invention, a kind of nickel or copper smelting waste slag are for another embodiment of the method for ferrosilicon smelting, and in screening, the iron level in nickel or copper smelting waste slag is more than or equal to 35%.
According to the present invention, a kind of nickel or copper smelting waste slag are for another embodiment of the method for ferrosilicon smelting, due to nickel or copper smelting waste slag size range between 2-5mm, and fusing point is lower, when adopting this smelting waste slag, charge level (mixture surface) temperature drift, the as easy as rolling off a log unfavorable phenomenon such as thorn fire that causes, to note suitable red-tape operati charge level in actual production, keep good charge level ventilation property, optimum embodiment is that the fabric height that forms of nickel in stove or copper smelting waste slag, silica, blue charcoal, pellet is below 400mm.
And, because containing the SiO2 average content in this waste in 30% left and right, smelt in production process and easily cause the working of a furnace to be clamminess, observe in time, according to circumstances take the circumstances into consideration to adjust the amount of allocating into of carbonaceous reducing agent (blue charcoal).
Pellet also can adopt oxide skin to replace in the present invention in addition, and the method for its smelting and the proportioning of weight are all identical with pellet.
A kind of nickel of the present invention or copper smelting waste slag are applicable to smelting the 75# ferrosilicon for the method for ferrosilicon smelting very much.
" embodiment " that spoken of in this manual, " another embodiment ", " embodiment ", " preferred embodiment " etc., the specific features, structure or the characteristics that refer in conjunction with this embodiment description are included at least one embodiment of the application's generality description.In specification sheets, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while in conjunction with arbitrary embodiment, describing a specific features, structure or characteristics, what advocate is to realize that in conjunction with other embodiment this feature, structure or characteristics also fall within the scope of the invention.
Although with reference to a plurality of explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of the open claim of the application, can carry out multiple modification and improvement to building block and/or the layout of subject combination layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (4)
1. a nickel or copper smelting waste slag are for the method for ferrosilicon smelting, and its method is as follows:
Screening, screened nickel or copper smelting waste slag, retains the particle of diameter 2-5 millimeter;
Smelt, the nickel after screening or copper smelting waste slag, silica, blue charcoal, pellet are dropped in stove and smelt;
Tap a blast furnace, separate slag iron.
2. a kind of nickel according to claim 1 or copper smelting waste slag are for the method for ferrosilicon smelting, it is characterized in that: described nickel or copper smelting waste slag weight percent are 3%-6%, the silica weight percent is 56%-53%, blue charcoal weight percent is 33%-35%, and the pellet weight percent is 8%-6%.
3. a kind of nickel according to claim 1 or copper smelting waste slag are for the method for ferrosilicon smelting, and it is characterized in that: in described screening, the iron level in nickel or copper smelting waste slag is more than or equal to 35%.
4. a kind of nickel according to claim 1 or copper smelting waste slag, for the method for ferrosilicon smelting, is characterized in that: the fabric height that the nickel in described stove or copper smelting waste slag, silica, blue charcoal, pellet form is below 400mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194589.4A CN103484682A (en) | 2012-06-14 | 2012-06-14 | Method for adopting nickel or copper smelting waste slag for ferrosilicon smelting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194589.4A CN103484682A (en) | 2012-06-14 | 2012-06-14 | Method for adopting nickel or copper smelting waste slag for ferrosilicon smelting |
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| CN103484682A true CN103484682A (en) | 2014-01-01 |
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| CN201210194589.4A Pending CN103484682A (en) | 2012-06-14 | 2012-06-14 | Method for adopting nickel or copper smelting waste slag for ferrosilicon smelting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263932A (en) * | 2014-10-16 | 2015-01-07 | 重庆大学 | Method utilizing copper flotation tailings for ferrosilicon production |
| CN105861845A (en) * | 2016-06-08 | 2016-08-17 | 江苏省冶金设计院有限公司 | Method for combined treatment of copper slags and steel slags |
| CN105861833A (en) * | 2016-06-08 | 2016-08-17 | 江苏省冶金设计院有限公司 | Method for combined treatment of copper slags and chromium slags |
| CN105886765A (en) * | 2016-04-26 | 2016-08-24 | 江苏省冶金设计院有限公司 | Method for producing ferrosilicon |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545043A (en) * | 2009-02-09 | 2009-09-30 | 牛庆君 | Method for producing ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN101545046A (en) * | 2009-02-12 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a nickel, copper and cobalt smelting waste slag electric stove integral deoxidation and reduction |
| CN101545042A (en) * | 2009-02-09 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN101545041A (en) * | 2009-02-09 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a nickel, copper and cobalt smelting waste slag electric stove integral deoxidation and reduction |
| CN101545045A (en) * | 2009-02-12 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN101545044A (en) * | 2009-02-12 | 2009-09-30 | 牛庆君 | Method for producing ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN102051428A (en) * | 2011-01-20 | 2011-05-11 | 西安建筑科技大学 | Iron extracting and steelmaking process for comprehensively treating copper ore tailing and nickel molten slag |
-
2012
- 2012-06-14 CN CN201210194589.4A patent/CN103484682A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101545043A (en) * | 2009-02-09 | 2009-09-30 | 牛庆君 | Method for producing ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN101545042A (en) * | 2009-02-09 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN101545041A (en) * | 2009-02-09 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a nickel, copper and cobalt smelting waste slag electric stove integral deoxidation and reduction |
| CN101545046A (en) * | 2009-02-12 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a nickel, copper and cobalt smelting waste slag electric stove integral deoxidation and reduction |
| CN101545045A (en) * | 2009-02-12 | 2009-09-30 | 牛庆君 | Method for producing microalloy ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN101545044A (en) * | 2009-02-12 | 2009-09-30 | 牛庆君 | Method for producing ferro-silicon by using a ferrous metasilicate electric stove integral deoxidation and reduction |
| CN102051428A (en) * | 2011-01-20 | 2011-05-11 | 西安建筑科技大学 | Iron extracting and steelmaking process for comprehensively treating copper ore tailing and nickel molten slag |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263932A (en) * | 2014-10-16 | 2015-01-07 | 重庆大学 | Method utilizing copper flotation tailings for ferrosilicon production |
| CN105886765A (en) * | 2016-04-26 | 2016-08-24 | 江苏省冶金设计院有限公司 | Method for producing ferrosilicon |
| CN105861845A (en) * | 2016-06-08 | 2016-08-17 | 江苏省冶金设计院有限公司 | Method for combined treatment of copper slags and steel slags |
| CN105861833A (en) * | 2016-06-08 | 2016-08-17 | 江苏省冶金设计院有限公司 | Method for combined treatment of copper slags and chromium slags |
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Application publication date: 20140101 |