Smelting system and method for reducing magnetic iron generated in copper ore smelting process

A magnetic iron and copper ore technology, applied in chemical instruments and methods, magnetic separation, furnaces, etc., can solve the problem of insufficient time for clarification and separation of slag and matte, the reduction of the effective volume of the precipitation zone in the furnace, and the contact reaction of difficult-to-magnetic iron oxides, etc. problems, to achieve the effect of ensuring the clarification and separation time, reducing the slag temperature and smelting energy consumption, and reducing the copper content

Active Publication Date: 2021-06-29
YIMEN COPPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High magnetic iron causes the following problems: ① leads to an increase in the temperature of slag slag, resulting in a certain increase in smelting energy consumption; ② leads to an increase in the viscosity of slag, resulting in an increase in copper content in slag; 30%, the effective volume of the precipitation zone in the furnace decreases sharply, resulting in insufficient clarification and separation time f

Method used

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  • Smelting system and method for reducing magnetic iron generated in copper ore smelting process

Examples

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Effect test

Example Embodiment

[0031] Example 1:

[0032] This embodiment provides a smelting system that generates magnetic iron during a smelting process, including a smelting furnace, a blown furnace, a cooling mechanism, a mixed flotation mechanism and a magnetic selection mechanism thereof, in which a molten furnace is provided. There is a glaze discharge opening and a melting slag outlet, the ice bronze discharge port is connected to the feed port of the blown furnace, and a crude copper discharge opening is provided on the blown furnace and the blowing residue discharge port, smelting slag Advanced port, blowing slag discharge port is connected to the slow-cooling mechanism; the melting slag and its blowing residue are sequentially treated after the cycle mechanism, the mixed flotation mechanism, and the magnetic selection mechanism to obtain a batch slag concentrate; copper mine smelting system There is also a mixed cartridge, and a first feed port is provided on the mixing cartridge, a second feed open...

Example Embodiment

[0037] Example 2:

[0038]This example provides a method of reducing the generation of magnetic iron during copper molten, including the following steps:

[0039] 1) Put into the bumpsets and pulverized coal into the mixed cartridge, and stir evenly to form a mixture;

[0040] 2) When the mixture, copper concentrate and its flux are fed into the bottom blown furnace, the pulverization is reducing, and the magnetic iron can be reacted, and the reaction 4C + Fe occurs when the pulverization is excessive. 3 O 4 = 3FE + 4CO, when the magnetic iron is over, the reaction Fe 3 O 4 + 2C = 3FE + 2CO 2 And in general, the magnetic iron is over, and the second reaction occurs, and the content of magnetic iron is reduced;

[0041] 3) Turning the oxygen in the bottom blown refining furnace to smelt and the carbon-based reducing agent 3 O 4 + 2C = 3FE + 2CO 2 And through the cigarette port to the bottom blown refining furnace, the reactive FE occurs 3 O 4 + Fe = 4FEO, so that the magnetic iron ...

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Abstract

The invention discloses a smelting system and method for reducing magnetic iron generated in a copper ore smelting process, and relates to the technical field of copper ore smelting. A mixing cylinder is further arranged in the copper ore smelting system. The mixing cylinder is provided with a first feed port for feeding batching slag concentrate, a second feed port for feeding pulverized coal and a discharge port for outputting a mixture; and the discharge port is over against a first metering belt for conveying the mixture. According to the smelting system and method for reducing the magnetic iron generated in the copper ore smelting process, the mixing cylinder is arranged to mix the batching slag concentrate and the pulverized coal, so that the water content of the batching slag concentrate can be reduced, the batching slag concentrate is more prone to being heated for reaction, and the water content of the pulverized coal can be obviously improved, so that the pulverized coal is not prone to flying in a smelting furnace and can be stably positioned in a low-oxygen environment at the lower part of the smelting furnace; and the pulverized coal reacts with the magnetic iron in the batching slag concentrate and the newly generated magnetic iron, so that the content of the magnetic iron in the smelting slag is reduced.

Description

technical field [0001] The invention relates to the technical field of copper ore smelting, in particular to a smelting system and method for reducing the generation of magnetic iron in the copper ore smelting process. Background technique [0002] Copper is one of the first metals discovered and used by humans. Copper and its alloys are widely used due to their good electrical and thermal conductivity, strong corrosion resistance, easy processing, and good tensile strength and fatigue strength. They are second only to steel and aluminum in the consumption of metal materials, and have become national economy, people's livelihood and national defense projects. Even the indispensable basic materials and strategic materials in the high-tech field. It has a wide range of uses in the electrical industry, machinery industry, chemical industry, defense industry and other departments, and the demand has always been high. [0003] The traditional smelting method is copper smelting ...

Claims

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Application Information

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IPC IPC(8): C22B15/02C22B5/10C22B9/00B03C1/02
CPCC22B15/0032C22B15/006C22B5/10C22B9/00B03C1/02Y02P10/20
Inventor 余小吕陈全坤杨应宝叶钟林伏彦雄段亚明罗京
Owner YIMEN COPPER CO LTD
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