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

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...

AI Technical Summary

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.