Heating – Tumbler-type rotary - drum furnace
Patent
1996-09-24
1997-12-09
Bennett, Henry A.
Heating
Tumbler-type rotary - drum furnace
432118, 432119, 432252, 110246, F27B 700
Patent
active
056953291
ABSTRACT:
A rotary kiln apparatus including an outer kiln shell defining an interior heating chamber therein for receiving material for heating which preferably includes a rotational drive for rotating the kiln, and a plurality of refractory bricks movably positioned within the chamber in order to maintain heat within the chamber where the refractory bricks are movable and in abutment with respect to one another to accommodate thermal expansion during heating and to maintain enhanced heating within the interior heating chamber with an outer liner insulation included extending about the inside of the outer kiln shell and in abutment therewith providing thermal insulation between the outer kiln shell and the refractory brick members with a metallic intermediate liner mechanically affixed to the inner side of the outer liner insulation to extend thereover to prevent abrasion of the outer liner insulation during normal movement of the refractory brick members during kiln rotation, with mechanical affixing of the intermediate metallic liner to the softer outer liner insulation obviating the use of adhesive-type material for connecting the metallic intermediate liner to the outer liner insulation wherein the mechanical affixation provided preferably by tangs or prongs which can be punched in the metallic intermediate layer which can easily be secured extending into the softer fibrous outer liner insulation for mechanical affixation therewith.
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Bennett Henry A.
Lu Jiping
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