Ferroalloy steel industry is an important raw material and machinery essential for the foundry industry, its main purpose: First, as a deoxidizer, eliminate excess liquid oxygen steel; the second is as an alloying additive element barium calcium silicon alloy prices, improved steel quality and performance. As China's iron and steel industry sustained and rapid development, varieties of steel, continues to expand and improve the quality of products put a higher demand ferroalloy, ferroalloy industry is increasingly becoming relevant technologies and supporting engineering steel industry. Ferroalloy industry has experienced three periods: the ferroalloy industry modernization period. So far in 1960, gradually replacing the blast furnace and dominant. After 1960, production surpassed the blast furnace ferroalloy ferroalloy production, and continue its rapid development. 1995 world steel production of about 340 million t, ferroalloy production is about 16 million tons of silicon barium calcium alloy plant, where electric ferroalloy production of more than 80%. Meanwhile electric equipment technology accelerates large-scale, fully enclosed of (semi-closed), mechanization and process control the pace of modernization, electric furnace gas cleaning and heat recovery to reach the practical stage, there has been pollution-free ferroalloy plant; computer controlled production process application and promotion.