Alloy silicon slag

Silicon slag generally refers to the remaining part after the ore is refined, and it also contains a certain amount of silicon. There are many kinds of silicon slag, industrial silicon slag, solar silicon slag, semiconductor silicon slag and other metallurgical materials.
Silicon slag is the solid residue after alumina is extracted by the fly ash sintering method. The mainstream silicon slag on the market is ferrosilicon slag and metal silicon slag. Silicon slag mainly contains silicon element, so it is widely called silicon slag in the industry. At present, silicon slag Slag can not only be used for deoxidation in the steelmaking industry, but also has been developed in the cement, concrete, calcium silicate board, and permeable brick industries. However, due to the high alkali content of silica slag, its use in the building materials industry is quite limited!

Because silicon slag is cheap and contains silicon, steelmakers prefer silicon slag when purchasing ferroalloy raw materials for steelmaking, and silicon slag performs equally well in desulfurization, mainly because silicon slag contains a large amount of alkaline oxidation It can react with sulfur dioxide to generate sulfate, and its slurry can be used for flue gas desulfurization. Silicon slag can be used for desulfurization, so what is the effect? Experiments show that the desulfurization effect of silicon slag can be as high as that, and the duration of desulfurization efficiency is longer than that of limestone slurry under the same conditions. It can be considered to replace limestone slurry for flue gas desulfurization. Flue gas desulfurization of silicon-calcium slag can not only reduce the emission of sulfur dioxide in the flue gas, but also reduce the alkali pollution in the stacking process of silicon-calcium slag, which provides another new idea for the comprehensive utilization of silicon-calcium slag.

Silicon slag can not only be used for desulfurization and the effect is very obvious in actual use. As a low-priced ferroalloy product, it has great advantages compared to expensive desulfurizers. Now more manufacturers prefer to use silicon slag as a desulfurization agent in desulfurization. Smelting materials, and the effect of using silicon slag is satisfactory.
Manufacturers who are familiar with silicon slag know that the main raw material of silicon slag is ferrosilicon slag, which is ground into powder and then made into silicon slag. The main smelting materials of ferrosilicon slag are silica, coke, etc. Among them, silica is very important. The most important factor is also an important factor to determine the quality of silicon slag, so the application of good silica is an important part of smelting silicon slag.

As a combustion aid and heating material for smelting silicon slag, coke is also an important factor affecting the quality of silicon slag. The control of coke should be low in ash content and low in water content. Why is it controlled in this way? That is because if If the ash content is too high, it will affect the gas permeability of ferrosilicon. If the water content is too high, it will affect the temperature stability in the furnace and affect the quality of silicon slag!