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Method for adopting nickel or copper smelting waste slag for ferrosilicon smelting

A technology for copper smelting and ferrosilicon, which is applied in the field of ferrosilicon smelting and the utilization of nickel or copper smelting waste slag, can solve the problems of high production cost of ferrosilicon, low utilization rate of nickel or copper smelting waste slag, etc. High Fe content and the effect of reducing pollution

Inactive Publication Date: 2014-01-01
内蒙古鄂尔多斯冶金有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an embodiment of a method for using nickel or copper smelting waste slag in ferrosilicon smelting, in order to solve the problem of low utilization rate of existing nickel or copper smelting waste slag and the production cost of ferrosilicon too high problem

Method used

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] A method for using nickel or copper smelting waste slag in ferrosilicon smelting, the method is as follows:

[0020] Screening, screening nickel or copper smelting waste slag, retaining particles with a diameter of 2-5 mm;

[0021] Smelting, put the screened nickel or copper smelting slag, silica, semi-coke, and pellets into the furnace for smelting;

[0022] Tap iron and separate slag and iron.

[0023] According to an embodiment of the method for using nickel or copper smelting waste slag in ferrosilicon smelting according to the present invention, the weight percentage of nickel or copper smelting waste slag is ...

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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 [0001] The invention relates to utilization of nickel or copper smelting waste slag, in particular to a method for using nickel or copper smelting waste slag in ferrosilicon smelting. Background technique [0002] Waste slag after metal nickel or copper smelting has not been properly utilized. Some enterprises cannot sell the waste slag of nickel or copper smelting to the outside world, occupying a lot of space for stacking, which is not conducive to environmental protection and wastes resources. [0003] In addition, in the known production process of ferrosilicon, the furnace charge of iron products is very single, and only steel shavings, pellets, oxide scales, etc. are used as alloy additives to produce ferrosilicon; and the cost of using these iron products continues to rise, which restricts our production of silicon Iron bottleneck. Contents of the invention [0004] The purpose of the present invention is to provide an embodiment of a method for usi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/04C22C1/02C22C1/10C22C35/00
CPCY02P10/20
Inventor 唐宗党刘鹏
Owner 内蒙古鄂尔多斯冶金有限责任公司
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