FORCED CIRCULATE PITCH DEWATERING AND TEMP. RAISING DEVICE

The utility model designs a forced circulate pitch dewatering and temperature raising device. The utility model is characterized in that a semi-water gas occurrence and combustion system is composed of a blower, a first and second air pipe, a fire tube, a grate, etc; a pave water pore and a heating system of the surrounding wall of a hollow cast-iron hot pin 33 are made into a snaking circumnutate type or a multiple way embranchment type in order to increase the thermolysis area. The forced circulate dewatering system comprises a pitch variable displacement pump arranged on the inner lower part of a main chamber; the pitch variable displacement is provided with two inlets and two outlets. The utility model also has a leakage protective system and a discharging and pouring pitch system. The utility model is convenient to operate in use and has the advantages of reasonable structure, high reliability and good economy.