Thermally insulated rotary kiln and method of making same

Details Thermally insulated rotary kiln and method of making same Thermally insulated rotary kiln and method of making same

F - Mech Eng,Light,Heat,Weapons

27

B

39/30

F27B 7/28 (2006.01)

Patent

CA 1158041

-33- THERMALLY INSULATED ROTARY KILN AND METHOD OF MAKING SAME Abstract of the Disclosure A wear-resistant, thermal protective, annular liner for a rotary kiln and an attendant method of making the same. The liner includes a series of elongate, axially aligned, annular composite liner sections, each of which comprises a layer of lightweight insulation material formed by side-by-side longitudinal rows of thermal insu- lating blocks positioned against the interior surface of the metal cylindrical wall of the kiln, with anchor brackets secured to the kiln wail and extending through respective openings in the insulating blocks and embedded in a relatively thicker and heavier layer of refractory material overlying the layer of insulation material, and wherein column portions of the refractory material project inwardly from the layer of refractory material and through the openings in the insulating blocks and in surrounding relation to the inner portions of the anchor brackets for supporting the layer of refractory material and preventing crushing the insulation material. The method includes the forming of each of the annular liner sections in successive segments while periodically rotating the cylindrical wall of the kiln so that each successive segment may be supported upon a suc- cessive lower region of the kiln wall interior surface while the respective segment is being constructed.

379023

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