Plastics liquefaction melt tank agitator coupled with solids removal

Abstract

The present invention relates to a liquefaction reactor with three distinct elements. First, an anchor type mixer with vertical blades near the reactor wall is used to prevent accumulation of viscous materials near the reactor wall. Second, the center shaft of the anchor mixer doubles as an auger mixer to provide vertical mixing and to draw any floating, unmelted waste below the surface. Finally, a dead zone nozzle at the bottom of the reactor is used to accumulate inorganic, undissolved solids and facilitate removal of these solids.

1. An apparatus for liquefying solid waste material in hydrocarbon oil, comprising:
 a) a waste inlet means;  
 b) a hydrocarbon oil inlet means;  
 c) an anchor mixer comprising a center shaft and a plurality of vertical blades;  
 d) helically shaped flights that run along the center shaft;  
 e) a waste/oil outlet means; and  
 f) a dead space for collecting inorganic material and undissolved solids.