Multistage heat exchange coupled sludge wet oxidation treatment system

The utility model discloses a multi-stage heat exchange coupled sludge wet oxidation treatment system which comprises a sludge bin, the sludge bin is communicated with a sludge homogenizing tank, the sludge homogenizing tank is communicated with a cold-end flow channel of a multi-stage forced turbulence heat exchange station, the cold-end flow channel of the multi-stage forced turbulence heat exchange station is communicated with a mixed steam heater, and the mixed steam heater is communicated with the sludge homogenizing tank. The mixed steam heater is communicated with the wet oxidation reaction system, the wet oxidation reaction system is communicated with a hot end runner of the multi-stage forced turbulence heat exchange station, and a hot end runner of the multi-stage forced turbulence heat exchange station is communicated with the sludge concentration system. The waste heat recovery device has the advantages of being capable of achieving high waste heat recovery rate and good in continuous and stable o