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Recycling method for producing silicomanganese alloy and medium and low carbon ferromanganese

A technology of silicon-manganese alloy and low-carbon ferromanganese, which is applied in the field of mutual recycling of solid waste and waste water, can solve the problems of comprehensive utilization of solid waste that have not been discussed, and achieve environmental protection, resource and energy saving, and improvement of enterprise economy benefit effect

Inactive Publication Date: 2014-04-02
广西敏诚矿业股份有限公司
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Problems solved by technology

[0007] However, the above-mentioned publications only proposed the sintering utilization of dust, and did not discuss the comprehensive utilization of solid waste generated between other processes.

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  • Recycling method for producing silicomanganese alloy and medium and low carbon ferromanganese

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Embodiment 1

[0025] One of the recycling methods for the production of silicon-manganese alloy and medium-low carbon ferromanganese of the present invention: sintering and utilization of silicon-manganese alloy dust, and its ingredients are:

[0026] Silicon-manganese alloy dust 15% to 20%;

[0027] Manganese powder ore 40%;

[0028] 20% of sintered ore powder;

[0029] Coke powder 8~10%;

[0030] Plant fiber 10%;

[0031] Dolomite balance.

[0032] The above mixed sintering raw materials are placed in a box-type sintering machine and sintered at about 1250 ° C for 45 minutes, then condensed into blocks, crushed and screened, and returned to the furnace for smelting as finished raw materials.

[0033] The second recycling method of the present invention: part of the iron slag and iron powder produced by finishing and crushing of silicon-manganese alloy products has low use value, and being idle as an energy carrier is a large waste of energy. By analyzing the content of each element a...

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Abstract

The invention discloses a method for mutually recycling solid wastes produced by production of a silicomanganese alloy and medium and low carbon ferromanganese. The method comprises the following steps: sintering dust produced by production of silicomanganese of a submerged arc furnace, manganese powder ores, plant fibers and coke powder to blocks, and re-melting down to smelt; refining scrap iron and iron powder of the silicomanganese alloy and preparing manganese ore and lime; and placing in a finery to smelt the medium and low carbon ferromanganese. Carbon manganese residues produced in the smelting process can further replace dolomite and rich-manganous slags as the production raw material of the silicomanganese alloy, so that the recycling production process which consumes the wastes as the raw materials and brings out the best in each other is realized among steps of a workshop.

Description

technical field [0001] The invention relates to the technical field of ferroalloy, one of the raw materials for iron and steel smelting, and in particular to a mutual recycling method for solid waste and waste water produced in the production of silicon-manganese alloy and medium-low carbon ferromanganese. Background technique [0002] Silicon-manganese alloy is an alloy composed of manganese, silicon, iron and a small amount of carbon and other elements. It is a ferroalloy with wide application and large output. Manganese-silicon alloy is a compound deoxidizer commonly used in steelmaking, and it is also a reducing agent for the production of medium and low carbon ferromanganese and the production of metal manganese by electrosilicothermal method. Manganese and silicon are the main alloying elements used in carbon steels. Manganese is one of the most important deoxidizers in the steelmaking process, and almost all steel types need to use manganese for deoxidation. Because...

Claims

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Application Information

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IPC IPC(8): C21C7/00C21C7/06C22C1/02C22B1/16C22B1/248
CPCY02P10/20
Inventor 钟敏林晨黎文格谢力
Owner 广西敏诚矿业股份有限公司
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