Method for preparing artificial decorative stone by using manganese-silicon alloy hot melting slag

Abstract

The invention belongs to the field of manganese-silicon alloy hot-melt slag treatment, and particularly discloses a method for preparing artificial decorative stone by using manganese-silicon alloy hot-melt slag, which comprises the following steps: S1, synchronously adding the manganese-silicon alloy hot-melt slag and a clarifying agent into a tempering electrolytic furnace to obtain mixed slag, keeping the temperature in the tempering electrolytic furnace at 1100-1600 DEG C, and uniformly mixing and heating for 1-4 hours; s2, pouring the mixed slag into a mold, then transferring the mold rapidly into a crystallization furnace, controlling the temperature of the crystallization furnace to range from 800 DEG C to 1300 DEG C, carrying out heat preservation for 1-3 h, and obtaining crystals; s3, after heat preservation is finished, stopping heating of the crystallization furnace kiln, and after the temperature of the crystallization furnace kiln is naturally cooled to the room temperature, withdrawing the mold from the crystallization furnace kiln; and S4, taking out the cooled crystal from the mold, cutting and polishing to obtain the artificial decorative stone. The method has the advantages that resources are effectively saved, the compressive strength of the artificial decorative stone is improved, and the porosity of the artificial decorative stone is reduced.

Description

technical field [0001] The invention belongs to the field of manganese-silicon alloy hot slag treatment, in particular to a method for preparing artificial decorative stones by using manganese-silicon alloy hot slag. Background technique [0002] Smelting manganese-silicon alloy will produce a large amount of manganese-silicon alloy hot-melt waste. Manganese-silicon alloy waste slag contains more SiO2 and CaO, and hardly contains iron. The existing manganese-silicon alloy waste slag utilization technology in my country is mainly to use the waste slag as the main raw material of cement after water quenching; it can also be used to produce unburned bricks and other building materials. However, the slag water quenching treatment technology has the disadvantages of consuming a large amount of water, causing air pollution, water pollution, and heat energy cannot be recovered. Improper operation of slag water quenching is also prone to explosion, forming a hidden danger of accid...

AI Technical Summary

Problems solved by technology

However, the slag water quenching treatment technology has the disadvantages of consuming a large amount of water, causing air pollution, water pollution and heat energy cannot be recovered.

Improper operation of molten slag in water quenching is also prone to explosion, forming a hidden danger of accidents in safe production

[0003] The Chinese invention patent with the authorized announcement number CN101559953B and the authorized announcement date of 2009.10.21 discloses a method for manufacturing cast stone from high-temperature liquid silicomanganese alloy slag as raw material. The method mainly uses quartz sand and chromite powder as additional agent, rent quartz sand and chromite powder in proportion and heat it to 1300°C-1400°C, then add the silicomanganese alloy slag after smelting in the submerged arc furnace together with additives into the slag water bag for miscibility, Then it is prepared into stone through pouring molding, crystallization, annealing and other processes; the porosity of the stone prepared by this method is relatively high, which seriously affects the compressive strength of the stone

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