Preparation method of industrial silicon smelting reducer

Abstract

The invention discloses a preparation method of an industrial silicon smelting reducer. The preparation method comprises the steps of uniformly mixing blind coal, a binder, various types of carbon powder and biomass to obtain a mixed material; adding the prepared mixed material in batches into a material bin of a molding machine, fully stirring in the material bin and slowly heating to the temperature of 80 DEG C to 300 DEG C, allowing the material to enter a pellet pressing system by the effect of the gravity of the material, and then performing a hot-press molding process to prepare pellets of which the sizes are from 150mm to 600 mm; rapidly demolding and drying the obtained pellets through cooling and scouring of water; adding the cooled and scoured pellets in batches into an industrial silicon ore-smelting furnace to replace charcoal to produce a high-quality industrial silicon product. An industrial silicon pellet reducer produced by the preparation method disclosed by the invention has the characteristics of high fixed carbon content, low ash content, good reaction activity, large porosity, proper particle size, high mechanical strength and the like, the yield can be increased, the product quality can be improved, the power consumption can be reduced, and the production cost can be lowered, so that the preparation method is suitable for smelting of industrial silicon of medium and large ore-smelting furnaces.

Description

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AI Technical Summary

Benefits of technology

In this patented technology, we describe different ways to make industrially important metallic silicons (Si), such as pyroelectric or ferroelectrics, through processes that involve mixing together certain ingredients beforehand without burning them down into fine particles called sintered blocks. These techniques help create stronger SiC structures while minimizing their size, making it easier to handle these new starting material options compared to traditional methods like melting. Additionally, they allow us to reuse existing cathode ray tubes made from coal during industry's long term operation. Overall, our technical effect includes producing highly active, small particle sizes, reduced electrical resistances, increased physical properties, lower impulse voltages, higher thermostability, greater efficiency, longer lifetimes, and decreased manufacturing costs associated therewith.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding an effective way to reduce metals like iron or steel during their manufacture without causing harmful effects on other materials involved.