Non-ferrous metal smelting industry mainly use silicate thermal insulation materials, ‌ glass wool thermal insulation materials, ‌ mineral wool thermal insulation materials, ‌ aluminum silicate thermal insulation materials for heat saving. These materials have good thermal insulation properties, ‌ high temperature resistance and chemical stability, which‌ can effectively reduce each process’s energy consumption and improve smelting efficiency, meanwhile supply workers better working environment and promote safe production.