Smelting furnace sealing device for white corundum production

The utility model belongs to the field of white corundum production application equipment, and particularly relates to a smelting furnace sealing device for white corundum production, which comprises a hollow rectangular heating area, a smelting fixing furnace is arranged in the heating area, two L-shaped placement blocks are symmetrically arranged at the upper ends of the inner walls of the two sides in the heating area, and the two L-shaped placement blocks are arranged in the heating area. Rotating rods are arranged in the long edge of the placement block, a hollow cylindrical sealing plate is arranged between the rotating rods, the inner diameter size of the sealing plate is matched with the periphery of the upper end of the smelting fixing furnace, the sealing plate is connected to the lower end of the heating device in a clamped mode, and a balancing weight is arranged at the rear end of the sealing plate. The sealing device is reasonable in design, simple in structure, convenient to machine, capable of