工业硅冶炼中附加氯化钙的探讨研究  

Study on the Addition of Calcium Chloride in Industrial Silicon Smelting

作　　者：王玺玺 曾仁福 王吉文 范鸡鸣 马天荣[1] 赵鹏翔 WANG Xixi;ZENG Renfu;WANG Jiwen;FAN Jiming;MA Tianrong;ZHAO Pengxiang(Jiusteel Group Hongdian Ferroalloy Co.Ltd.,Jiayuguan 735100,China)

机构地区：[1]酒钢集团宏电铁合金有限责任公司,甘肃嘉峪关735100

出　　处：《甘肃冶金》2025年第1期33-35,共3页Gansu Metallurgy

摘　　要：工业硅的冶炼过程以及炉内发生的系列反应是一个比较复杂的过程。工业硅的冶炼是连续不间断进行的,如果长时间出现投入炉内的物料总量大于产出的物料总量,炉内炉渣、碳化硅便会淤积,现象就是料面透气性差、电极周围出现结块现象、电炉参数跳动、炉前出硅不畅,通过正常的用碳调整作用不大时,严重时会出现死相、严重偏相,刺火严重。CaCl_(2)作为一种冶金行业重要的添加剂,在金属冶炼中有着调节炉况的作用。通过附加CaCl_(2)来调整工业硅冶炼中碳化硅结块、炉渣淤积等炉况不顺的现象,在工业硅冶炼中附加CaCl_(2)有促进化学反应、改善硅质品质、控制反应温度、促进硅的析出、稳定反应体系等作用。The smelting process of industrial silicon and the series of reactions in the furnace are a relatively complex process.The smelting of industrial silicon is continuous,if the total amount of material invested in the furnace is greater than the total amount of material produced,the slag and silicon carbide in the furnace will accumulate,the phenomenon is that the air permeability of the material surface is poor,the agglomeration phenomenon appears around the electrode,the parameter beating of the electric furnace,the silicon out before the furnace is not smooth,and the normal carbon adjustment is not big,when severe,there will be a dead phase,serious phase,the stab fire is severe,CaCl_(2)as an important additive in the metallurgical industry,has the function of regulating the furnace condition in the metal smelting.In this paper,by adding CaCl_(2)to adjust the silicon carbide agglomeration,slag deposition and other furnace conditions in industrial silicon smelting phenomenon,additional CaCl_(2)in industrial silicon smelting can promote the chemical reaction,improve the silicon quality,control the reaction temperature,promote the precipitation of silicon,stabilize the reaction system.

关 键 词：工业硅 CaCl_(2) 碳化硅结块 炉渣淤积 炉况异常 

分 类 号：TF63[冶金工程—钢铁冶金]