The utility model discloses
sludge low-temperature
drying and
dewatering coupling equipment based on
heat pump waste heat recovery, which belongs to the technical field of
sludge drying treatment and comprises a
drying box, a
coupling box is fixedly connected to one side of the drying box, a partition plate is mounted in the middle of the inner wall of the
coupling box, and a gas-liquid separator is fixedly connected to the top of the partition plate. Four heat conduction pipes are installed on one side of the gas-liquid separator, and a
heat pump body is fixedly installed at the position, located at the bottom of the partition plate, of the coupling box. According to the
sludge low-temperature drying and
dewatering coupling equipment based on
heat pump waste heat recovery, a first
air pump, a heat pump body, a heat conduction
pipe and an air outlet seat are arranged, and air enters a gas-liquid separator through an air inlet seat and an air guide
pipe, so that the air can penetrate through the heat conduction
pipe at the top of the gas-liquid separator; and residual heat in the gas is transferred into the drying box through the heat conduction pipe to be recycled, so that the heat is recycled, and the
waste heat utilization efficiency of the equipment is improved.