Studies of the thermal stability of briquettes based on microsilica

The object of study in this work is microsilica. Microsilica a pulverized technogenic waste generated during the smelting technical silicon industries. intended use material to obtain highest quality grades end result without expensive quartz. finely dispersed powder, direct processing (without preliminary preparation) which into impossible ore-thermal furnaces. That requires manufacture high-strength briquettes based on it, meeting all requirements for raw materials In paper, authors present results thermal stability microsilica-based order optimize physicochemical properties resulting briquettes. tested microsilica with various carbonaceous reducing agents (screenings coke thermo-oxidative coking, screenings charcoal, etc.) were obtained large-scale laboratory roller briquetting press ZZXM-4. evaluation was carried out according method are subjected shock followed by abrasion special drum. resistance briquette defined as ratio weight main body after test sum and crumbled material. dependence granulometric composition also determined. optimal determined, have satisfactory stability. Thus, most technologically advanced charge reduction an furnace established. It best compositions appropriate fractions 0-1; 1-3; 3-5 mm following proportions 35/35/30 60/20/15, well particle size distribution within these ranges variation.