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Method for preparing low-carbon low-phosphor silicon manganese alloy by utilizing medium manganese slag and siliceous reducer

A technology of reducing agent, phosphorus silicon manganese, applied in the field of production of low carbon low phosphorus silicon manganese alloy, can solve the problems of complex process, high energy consumption, low efficiency, etc., and achieve the effect of simple process, reduced energy consumption and obvious economic benefits

Active Publication Date: 2007-12-12
五矿湖铁(内蒙古)铁合金有限责任公司
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Problems solved by technology

[0002] The current production of low-carbon and low-phosphorus silicon-manganese alloys mainly adopts the production method of submerged arc furnace, which has complicated process, high energy consumption and low efficiency.

Method used

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Embodiment Construction

[0024] The present invention requires one medium manganese smelting electric furnace, one crane, one shaker, and three shakers. The refined iron and manganese smelting electric furnace is preferably 3500KVA, and the crane is preferably a 15T crane, preferably a 10T shaker. It is mainly achieved through the following steps:

[0025] a) Before the refined ferromanganese electric furnace comes out, prepare a special slag ladle and two special molten iron ladles. The effective volume of the special slag ladle is 60% of the effective volume of the shaking ladle, and the effective volume of the two special molten iron ladles is 70% of the effective volume of the shaking ladle respectively.

[0026] b) The refined ferromanganese electric furnace is discharged to form refined ferromanganese hot metal and medium-carbon ferromanganese slag liquid (or low-carbon ferromanganese slag liquid), and the medium-carbon ferromanganese slag liquid (or low-carbon ferromanganese slag liquid) is put...

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Abstract

This invention relates to a method of producing silicon-manganese alloy with low carton and phosphorus with manganese residue and siliceous reducer. It mainly settles the technical matters such as complex manufacturing technique, high energy consumption and low efficiency. The essential of the technical project is following: when ferromanganese has been refined in the electric stove, adding manganese residue liquid with medium or low carton into a special slag bag, mixing the liquid with siliceous reducer for heat exchange and adding them into a special melted iron bag, after this, pouring them into another special melted iron bag, changing bags like this for 2-3 times, finally pouring them into rocky bag quickly and actuating it for 3-15 minutes, after this, precipitate them for 8-25 minutes,pouring residue liquid into a low steel disk for cooling after removing residue, then dealing with them to get finished product. With simple process, its energy consumption and unit cost decrease greatly, so its economic benefit and social benefit are very obvious.

Description

technical field [0001] The invention relates to a method for producing low-carbon and low-phosphorus silicon-manganese alloy by using medium manganese slag and silicon reducing agent. Background technique [0002] The current production method of low-carbon and low-phosphorus silicon-manganese alloy mainly adopts the production method of submerged arc furnace, which has complicated process, high energy consumption and low efficiency. Contents of the invention [0003] The purpose of the present invention is to provide a low-carbon and low-phosphorus silicon-manganese alloy produced by using medium-carbon ferromanganese slag liquid (or low-carbon ferromanganese slag liquid) and silicon reducing agent with simple process, relatively low energy consumption and better benefits Methods. [0004] The technical scheme that the present invention solves its technical problem adopts is: it comprises the following steps: [0005] a) Before the refined ferromanganese electric furnac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/02C22C1/06C22C22/00
Inventor 宁结算
Owner 五矿湖铁(内蒙古)铁合金有限责任公司
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