Patent ID: 6047768
Filing Date: 2000-04-11
Classification: C02F,F28D,Y02W

Abstract:
A heat exchanger for transferring heat between first waste solids and second waste solids, said heat exchanger comprising:a first waste solids source for supplying first waste solids;a second waste solids source for supplying second waste solids the second waste solids being at a temperature different from the first waste solids;a heat transfer portion remotely located from said first waste solids source and said second waste solids source, said heat transfer portion includinga first conduit having a first entry port fluidly interconnected with said first waste solids source so as to receive first waste solids from said first waste solids source and a first discharge port fluidly interconnected with said first waste solids source such that at least a portion of the first waste solids passed through said first conduit is returned to said first waste solids source, anda second conduit fluidly interconnected with said second waste solids source such that second waste solids from said second waste solids source are passed through said heat transfer portion, said second conduit having a thermally-conducting wall disposed substantially adjacent said first conduit and for transferring heat between first waste solids passed through said first conduit and second waste solids passed through said second conduit.