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US 4,266,931 AGranted
Apparatus and method of heating particulate material
OwnerHolger Struckmanninventor
Life of this patent
Estimating the term…
Abstract
The rotary combustion bed has a rotary drum with a permeable refractory lining through which air is blown during rotation of the drum and cascading of a charge of material in the drum. The air blown into the drum can be controlled to blow through various angular sections of the drum.
Claims17
A rotary combustion bed
- comprising a rotary drum having a longitudinal axis and defining a chamber to receive and cascade a charge of particulate material, said drum including an outer shell, a perforated inner shell and a plurality of spacer plates secured to and between said shells to define air distribution passages therebetween;
- a permeable refractory lining disposed about said chamber of said drum to receive a cascading charge of material thereon;
- means for passing a flow of combustion air into selected air distribution passages to flow radially upwardly through said lining into a cascading charge of particulate material in said chamber at a circumferential angle over a given angle of blow;
- and means for adjusting said predetermined angle.
1 more element
A rotary combustion bed comprising
- a rotary drum having a horizontal longitudinal axis and defining a combustion chamber to receive and cascade a charge of material therein, said drum including an outer shell having a plurality of circumferentially disposed slots, a perforated inner shell and a plurality of spacer plates secured to and between said shells to space said shells from each other, said plates including solid plates defining air distribution passageways therebetween longitudinally of said axis, said passageways being in communication with said slots;
- a permeable refractory lining disposed about said chamber of said drum to receive a cascading charge of material thereon;
- a belt circumferentially disposed about said drum to seal said slots;
- a take-up pulley for holding said belt against said drum;
- and
- means for passing a flow of combustion air through said lining into said chamber and into the cascading charge of material therein, said means including a blower in communication with a selective number of said passageways to blow air through said selective passageways into said chamber over a given angle of blow.
3 more elements
Dependencies are inferred from the claim text.