Electric oven for extracting expanded vermiculite from vermiculite concentrates

摘要

The utility model relates to an electric furnace for producing expanded vermiculite from vermiculite concentrates. The oven contains a baking sheet made of dielectric refractory material, a furnace frame, a thermal cover, fastening heads with clamps fixed on the frame, U-shaped electric heaters made of strip nichrome laid flat on the surface of the baking sheet and fixed on the fastening heads with clamps, a vibrating bottom platform connected with an eccentric drive, springs, while the baking sheet is placed on the furnace frame and under the vibrating hearth platform, and the thermal cover is installed on the furnace frame above the vibrating hearth platform. In this case, the specified vibration platform is made in the form of a baking plate made of heat-resistant sheet metal, suspended on springs attached to it, placed along its edges horizontally on one side and the other and fixed in tensioners installed on the frame and placed above the U-shaped electric heaters, and the thermal cover is equipped with reflectors of thermal radiation. The technical result is to simplify the design. 4 ill.