There are actually two types of silicon slag. One is the small-grained ferrosilicon slag ranging from 0-3mm or 3-8mm left behind when manually or machine-processed to the standard 10-60mm. Another type is the dross floating on the furnace during the smelting process when silicon metal is smelted. This is called silicon metal slag. By-products of the production of silicon metal include grass ash silicon, furnace bottom silicon, hand-picked silicon, edge silicon, silicon carbide and other silicon waste.
The silicon content of ferro silicon slag is not high, and it is usually used as a furnace washer or a layer is sprinkled on the bottom of the ladle to play an isolation role. Today we will focus on silicon metal slag. Because the content of silicon metal slag is relatively high, there are several contents such as 50. 55. 60. 65. 70. It can be seen that the content of silicon metal slag can actually reach the content of ferrosilicon. In addition, the price of silicon metal slag is higher than that of ferrosilicon. Much cheaper. Therefore, some silicon metal slag is now being used to replace ferrosilicon on the market.
Silicon metal slag contains a large amount of silicon metal and other elements, so it is a good deoxidizer, which has a good effect in deoxidizing and purifying molten steel. In addition, its price is low and its effect is good, so For some steel mills, it is also a good choice to reduce costs and increase efficiency. Silicon briquettes are made by pressing silicon slag with a briquetting machine. When used, they are more likely to react with molten steel than silicon metal slag. Avoid oxidation with air. It is a product that is easier to use than silicon metal slag.
The size of silicon metal slag produced is mainly powder, with sizes of 0-5mm and 0-10mm. When packaging, you can choose to pack it in small bags, or you can directly add small bags to ton bags. Silicon briquettes are produced in standard sizes 10-50mm. Of course, manufacturers can also customize some indicators according to purchasing needs.
