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US 5,580,242 AGranted
Rotary kiln
AssigneeBabcock-BSH GmbH
InventorHans Becker
Life of this patent
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Abstract
A rotary kiln has a generally cylindrical housing centered on and extending along an axis inclined to the horizontal and having an upper upstream end and a lower downstream end and a drive that rotates the kiln about its axis. Particles to be heat-treated are fed into the housing at the upstream end and are extracted from the downstream end. A plurality of axially separate heat-exchange radiators fixed in the housing are connected axially in series and a fluent heat-exchange medium is flowed serially through the radiators from the downstream end of the housing to the upstream end of the housing.
Claims6
A rotary kiln comprising:
- a generally cylindrical housing centered on and extending along an axis inclined to the horizontal and having an upper upstream end and a lower downstream end;
- means for rotating the kiln about its axis;
- means for feeding particles to be heat-treated into the housing at the upstream end;
- means for extracting the particles from the downstream end;
- a plurality of axially separate and axially spaced heat-exchange radiators fixed in the housing;
- respective axially extending connector tubes each connecting a respective one of the radiators axially in series with the adjacent radiator;
- and
- means for flowing a fluent heat-exchange medium serially through the radiators from the downstream end of the housing to the upstream end of the housing.
5 more elements
Dependencies are inferred from the claim text.