Complete set of equipment for step-by-step sludge drying through hot tail gas of boiler

A complete set of equipment for step-by-step sludge drying through hot tail gas of a boiler is an innovative development, and comprises a drying tank and a drying room; the useless hot tail gas generated and exhausted by the boiler is used as a heating medium for sludge drying; the steps of sludge drying comprise: firstly, wet sludge is dried into half-dry sludge in the drying tank, and secondly, the half-dry sludge is dried into dry sludge in the drying room; a cavity of the drying tank is formed by concrete through pouring; the drying room is located below the drying tank; an open multi-layered band dryer is arranged in the drying room; and walls on the four sides of the drying room are built by bricks and cement. The complete set of equipment has the advantages of obvious energy-saving effect, high drying efficiency and low use cost and equipment manufacturing cost, and is ideal equipment for batch sludge drying.