A pretreatment tank for coal tar preliminary treatment

The utility model belongs to the technical field of the chemical industry, a pretreatment tank for coal tar preliminary treatment especially, being cylindrical the latter half including the first halfand personally experiencing sth. Part of the body for obconic's jar, a jar body upper end is provided with feed inlet and gas vent, and the conical bottom of lower extreme is provided with the discharge gate, is provided with air inlet and heater on the wall of jar side, is provided with dross removal mechanism on the conical bottom surface. The utility model provides a pretreatment tank, jar internal heater that is provided with heats coal tar, is provided with the scummer simultaneously on the conical bottom surface that the jar was personally experienced sth. Part of the body, utilizes therotatory sedimentary solid impurity in bottom surface of collecting of scraper blade principle, and with its settling pit of collecting the bottom surface center, the content of solid impurity in thecoal tar that has signific