Patent ID: 7575043

Claim:
A conveyor for handling hot materials at a temperature on the order of 1,000° F. or higher comprising: an elongated conveyor trough having an inlet for receiving material to be conveyed and an outlet whereat handled hot material passes out of said trough; a conveyor member supported within said trough to extend along said trough, and a drive for moving said conveying member to advance hot material to be handled along said trough; said trough having an inner wall having an inside surface confining hot material to be handled; one or more liquid flow vessels supported so as to be extending over but spaced away from an outside surface of said inner wall to reduce heat transfer therebetween by an interposed limiting heat conductive connection position to contact said outside surface of said inner wall and a limited area of an outer surface of said heat exchange liquid flow vessels; and, a source of cooling liquid supplying cooling liquid to said liquid flow vessels, whereby said cooling liquid indirectly transfers heat from said trough inner wall through said heat conductive connection and through said outer surface of said inner wall and said limited area of said outer surface of said flow vessels into said cooling liquid to prevent excessive heat transfer and resulting boiling of said cooling liquid.