Automatic desilting device for water tank of circular cooler

The utility model discloses an automatic desilting device for a water tank of a circular cooler. The automatic desilting device comprises a mud shoveling bucket, a mud conveying assembly, a support, a supporting arm and a mud collecting bucket. The sludge conveying assembly is composed of an outer cylinder, a first motor installed at the tail of the outer cylinder and a spiral blade installed in the outer cylinder. The outer cylinder is obliquely inserted into the water tank and is mounted on a smoke hood of the circular cooler through a support arm and a bracket; the mud shoveling bucket is arranged at the feeding end of the outer cylinder, and a bucket tail opening of the mud shoveling bucket is communicated with the outer cylinder. A sludge outlet is formed in the outer cylinder and extends to the upper part of the sludge collecting hopper; two distance measuring sensors are arranged on the smoke hood and used for measuring the sludge thickness and the water level in the water tank respectively. The device