Vertical roasting kiln for foundry waste sand

Abstract

The utility model relates to the technical field of roasting kiln discloses a vertical roasting kiln for foundry waste sand, including furnace kiln, the inside of furnace kiln is divided into baking area and air inlet area by air bed, is provided with waste sand buffer structure in baking area, and the inside bottom of baking area is connected with combustion machine, and a plurality of air holes are arranged on the air bed, the top of furnace kiln is equipped with feeding pipe and exhaust pipe, and the lower end of furnace kiln is equipped with discharging equipment and air inlet pipe, the outer wall of furnace kiln is wrapped with the heat preservation layer, and is fixed by the fixed frame of setting on the outside, the utility model discloses through the additional waste sand buffer structure, can effectively prolong the falling residence time of waste sand in the inside of furnace kiln, fundamentally solves the problem that the baking is not sufficient and the impurity is difficult to remove thoroughly because of the too fast flow speed of waste sand, and the cleanliness and overall effect of waste sand regeneration treatment are greatly improved, and the cleaning and maintenance operation of furnace kiln bottom air bed are also simplified, and the operation stability of equipment is further optimized.

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