Heating – Processes of heating or heater operation – Including repairing – converting or assembling apparatus
Patent
1980-06-19
1981-09-15
Yuen, Henry C.
Heating
Processes of heating or heater operation
Including repairing, converting or assembling apparatus
432119, 110336, F27B 728, F27D 116
Patent
active
042894794
ABSTRACT:
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 insulating blocks positioned against the interior surface of the metal cylindrical wall of the kiln, with anchor brackets secured to the kiln wall 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 successive lower region of the kiln wall interior surface while the respective segment is being constructed.
REFERENCES:
patent: 2111783 (1938-03-01), Hults
patent: 2137184 (1938-11-01), Seil
patent: 2321813 (1943-06-01), Henzel
patent: 2341777 (1944-02-01), Hensel
patent: 3445099 (1969-05-01), Olsen et al.
patent: 3994669 (1976-11-01), Meenan
patent: 4122642 (1978-10-01), Buchy
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