Silicon-manganese high-efficiency absorption alloy ball and preparation method thereof

Abstract

The invention discloses a silicomanganese efficient absorption alloy ball. Silicomanganese alloy, silicon iron, manganese ore, high alumina cement and a binder are mixed and made into the alloy ball with the particle size of 20 millimeters to 50 millimeters. The alloy ball replaces the traditionally used alloys such as silicon iron, high carbon ferromanganese, and the silicomanganese, and enables the cost of steel per ton to be obviously reduced. The alloy ball not only can improve the efficiency of silicon and manganese and the recovery rate of alloy can be increased, but also can completely replace the traditionally used alloys such as the silicon iron, the high carbon ferromanganese and the silicomanganese. The deoxygenation response is fast, the alloying speed is high, cost consumption of raw and auxiliary materials can be reduced, environmental pollution is reduced, working condition is improved, and steel-making cost is reduced. Therefore, the silicomanganese efficient absorption alloy ball and the preparation method of the silicomanganese efficient absorption alloy ball play a significant role in improvement of comprehensive economic benefits of steel enterprises.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to an alloy ball used for adding alloy elements in the smelting process of silicon-manganese alloy steel. Background technique [0002] In the known technology, the smelting of silicon-manganese alloy steel is usually to add ferrosilicon, high-carbon ferromanganese, silicon-manganese and other alloys in molten steel as intermediate materials for alloying agents. At the same time, silicon, manganese, calcium, Aluminum, magnesium and other deoxidizers can be used to achieve the content of silicomanganese and other quality indicators in alloy steel. The main defects of this method are: 1) The melting and absorption efficiency of silicon-manganese alloy is low, which leads to long smelting time of molten steel, high energy consumption and high pollution , coupled with the constraints of national policies, many small-scale enterprises are mostly in a state of suspension of production...

AI Technical Summary

Problems solved by technology

[0002] In the known technology, the smelting of silicon-manganese alloy steel is usually to add ferrosilicon, high-carbon ferromanganese, silicon-manganese and other alloys in molten steel as alloying agent At the same time, deoxidizers such as silicon, manganese, calcium, aluminum, and magnesium must be added to achieve the content of silicon-manganese and other quality indicators in the alloy steel. The main defects of this method are: 1) The silicon-manganese alloy melts and absorbs Low efficiency, resulting in long molten steel smelting time, high energy consumption, high pollution, coupled with national policy constraints, so many small-scale enterprises are mostly in a state of shutdown, and the total domestic alloy production cannot meet the current production needs of domestic steel mills; 2) The low absorption rate of silicomanganese alloy results in a large amount of alloy raw materials added, which increases the production cost of alloy steel; 3) the amount of residual silicomanganese alloy is large and the recovery rate is low

So far, the above problems have not been satisfactorily resolved.