F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/27
F27B 7/38 (2006.01) F27B 7/22 (2006.01)
Patent
CA 1133698
- 22 - COOLING ARRANGEMENT FOR ROTARY KILN ABSTRACT OF DISCLOSURE An arrangement for mounting a cooling cowl on the discharge end of a rotary kiln which allows for radial and axial differential expansion between the kiln shell and the cooling cowl. The cooling cowl is mounted on the kiln contiguous the discharge end of the kiln, with the cowl being positioned radially outwardly of the outer peripheral surface of the kiln to define an annulus between the inner peripheral surface of the cowl and the outer peripheral surface of the kiln through which cooling air can flow to cool the discharge end of the kiln. A radially outer set of end castings is supported by the kiln shell at the discharge end of the kiln and defines an axial end closure for the cooling annulus between the cowl and the kiln shell. A radially inner set of end castings is supported by the kiln shell at the discharge end of the kiln and retains the "nose brick" of the kiln lining. Both the radially outer and the radially inner end castings are supported by the kiln in such manner as to be structurally independent of the cowl. A plurality of spacer bars made of a flexible material such as steel is positioned in the annulus between the cowl and the kiln, the spacer bars extending in a direction substantially parallel to the axis of rotation of the kiln and being angularly spaced apart from each other, the respective spacer bars being fixedly secured at one end thereof only to the cowl and at the opposite end thereof only to the kiln. As a further feature of the construction, a pair of keeper blocks, preferably supported by the cowl, are positioned contiguous opposite circumferentially spaced sides of a given spacer bar whereby to substantially prevent circumferential shifting of the cowl.
344853
Bliemeister Robert M.
Conrad Ralph M.
Allis-Chalmers Corporation
Swabey Ogilvy Renault
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