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US 5,018,707 AGranted
Heating furnace
AssigneeGas Research Institute
InventorsKlaus H. Hemsath, H. Kenneth Staffin, Michael Owsiany
Life of this patent
Estimating the term…
Abstract
A heating mantle for heating materials, such as metals, alloys or inorganic chemicals in a retort, includes a tubular wall and annular chambers cooperating with said wall for forming a tortious path around the retort for hot gases. The mantle provides a very high convective heat transfer coefficient.
Claims10
A heating mantle for heating a retort having an elongated tubular body comprising:
- a source of hot gases;
- cylindrical wall means;
- and a plurality of baffles supported by and extending radially inwardly from said cylindrical wall means to form a space for said retort, said baffles and said cylindrical wall means cooperating to form a plurality of heating chambers in communication with said source and open to said space, said chambers defining a tortuous path for said gases for transferring heat to said retort;
- said cylindrical wall means being disposed substantially vertically, and said baffles extending in planes perpendicular to said cylindrical wall means, said heating chambers being interconnected by slots in said baffles, said slots being radially offset from one baffle to another.
1 more element
A heating apparatus comprising:
- a housing made of an insulating material and having a top;
- a cylindrical wall imbedded in said insulating material and having a longitudinal axis;
- a plurality of ceramic baffles supported from said cylindrical wall and extending radially inward to form a tubular space, said baffles cooperating to define annular heating chambers open to said space;
- a retort for holding materials for heating said retort being supported by said top and extending into said tubular space without touching said baffles;
- and
- a source of hot gases;
- said baffles, said cylindrical wall and said retort cooperating to form a tortuous path for hot gases for convective heat transfer to said retort.
4 more elements
Dependencies are inferred from the claim text.