초록 ▼

A system for receiving and removing contaminants from soil, sand, etc. which has been contaminated by liquid contaminants. The contaminated material is heated in a rotating chamber sufficiently to volatilize the contaminants. The volatilized contaminents flow from one end of the chamber while the se

A system for receiving and removing contaminants from soil, sand, etc. which has been contaminated by liquid contaminants. The contaminated material is heated in a rotating chamber sufficiently to volatilize the contaminants. The volatilized contaminents flow from one end of the chamber while the separated material is discharged from the other end as an uncontaminated material. Dust is removed from the volatilized contaminants and they are fed into a combustion chamber for conversion to harmless products of combustion.

대표청구항 ▼

A system for removing liquid contaminants from solid materials comprising: a longitudinally extending, rotatably mounted housing with a first end and a second end; a first inlet for receiving hot gas and a discharge for solids each disposed at said first end of said housing; a second inlet for recei

A system for removing liquid contaminants from solid materials comprising: a longitudinally extending, rotatably mounted housing with a first end and a second end; a first inlet for receiving hot gas and a discharge for solids each disposed at said first end of said housing; a second inlet for receiving contaminated solids and an outlet for gases each disposed at said second end of said housing; said housing having an inner surface and a plurality of spaced lifting flights extending inwardly from said surface; drive means for rotating said housing; a furnace having an exhaust at one end positioned to deliver products of combustion to said first inlet; a damper connected to said outlet, whereby flow of gas through said housing can be controlled; said rotating housing continuously lifting and spilling solid materials passing therein to expose liquid contaminants to the hot gas causing vaporization of said contaminants and separation from said solid materials; said furnace having a longitudinally extending, contaminant combustion chamber; a burner axially disposed at the other end of said furnace; a burner combustion chamber disposed between said burner and said contaminant combustion chamber; a plurality of spaced nozzles disposed about said burner combustion chamber; each of said nozzles having a central oxidizer portion and a reflux gas portion; each of said oxidizer portions being connected to an oxidizer manifold; each of said reflux gas portions being connected to a reflux gas manifold connected to receive gas from said outlet; an exhaust at the other end of said furnace; a stack extending from said contaminant combustion chamber at a location axially spaced from said exhaust.