Storage tank cleaning processing device

The utility model discloses a storage tank cleaning processing device which comprises a suction module, a circulation module, a separation module, a dehydration module, a heat supply module and at least one cleaning spray nozzle. A oil-water-sand mixture in a tank is extracted by the suction module and then enters the circulation module to be subjected to solid-liquid two-phase separation; separated liquid oil water is divided into two paths; one path of the liquid oil water is heated to the temperature of 70 DEG C by the heat supply module and then is sprayed into a cleaned storage tank by utilizing a circulating pump through the cleaning spray nozzle to be used as cleaning liquid for cleaning the storage tank; the other path of the liquid oil water is injected into the dehydration module by the circulating pump to be further dehydrated, the obtained oil is stored in the oil storage tank and the obtained sewage is drained into a sewage tank; and separated solid bottom mud is further subjected to separation treatment by the separation module, the separated oil is stored in the oil storage tank by the pump, the sewage is pumped into the sewage tank by the pump, and finally, slags are discharged out. According to the device, the cleaning and the processing are combined; the recovery rate of crude oil is improved; the water content of the slags is reduced; and each module is arranged by a prying block, so that the storage tank cleaning processing device is convenient to maintain and transport.