VERTICAL CURRENT SEPARATION OF PRECONDITIONED GARBAGE FROM HEAVIER FRACTIONS AND LIGHTER CLINKERLESS USTIBLES

摘要

A closed system between a conveyor-pressure operated intake port at an air sealed gate overlying a hopper for receiving and funneling preconditioned garbage into the restricted end of a tapering air duct through which air from a blower enters to effect venturi action forcing the garbage toward the lower end of a vertical stack of zigzag ducts wherein heavier fractions drop out to be uscd as earth fill and the like while lighter fractions discharge into a trommel screen in a closed chambered storage bin for future use as a fuel, such as combustible briquettes and the like, from which closed chambered storage bin air recirculates back to the blower from which supplemental air feeds into an air cushion at the juncture of the tapering air duct with the stack of ducts for boosting, the on coming garbage up into the latter, and means for controlling air pressure within the ducts of the system.