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Title:
PIPE LIFTER FOR ROTARY KILN
Document Type and Number:
WIPO Patent Application WO/2018/155505
Kind Code:
A1
Abstract:
A part of the outer surface of this pipe lifter, which is formed so as to have no mutual interference with rotary kiln refractory, is in contact with or embedded in the inner wall refractory of a rotary kiln outer shell, and another part of the outer surface is provided so as to protrude into the rotary kiln. If the installation angle of the pipe lifter is at least the angle of repose of a material to be processed, the cross-section of the pipe lifter in the direction of forward rotation is open, and the cross-section in the direction of rearward rotation is closed. If the material to be processed is to be provided with a reverse feed effect, the pipe lifter is tilted at an inverse spiral, and if there is to be no resistance or propulsion for the conveyance of the material to be processed, the pipe lifter is not tilted in the peripheral direction. The installation central angle of the pipe lifter is at most the central angle of the material to be processed. If the installation angle of the pipe lifter is at most the angle of repose of the material to be processed, a plurality of intrusion openings, which are for the material to be processed that has been scraped up by the outer surface of the pipe lifter protruding into the rotary kiln and which also serve as discharge openings when the material to be processed has been drawn up, are provided to the outer surface of the pipe lifter. The pipe lifter, which is for a rotary kiln for solid-gas reactions, efficiently disperses solids in gas and is sufficiently durable even at high temperatures.

Inventors:
ABE TAKAICHI (JP)
Application Number:
PCT/JP2018/006285
Publication Date:
August 30, 2018
Filing Date:
February 21, 2018
Export Citation:
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Assignee:
ENVIRONMENT AND ENERGY RES AND DEVELOPMENT LLC (JP)
International Classes:
F27B7/16; C21B11/06
Domestic Patent References:
WO1999044000A11999-09-02
Foreign References:
JPS5457249A1979-05-08
JP2015210067A2015-11-24
JP2007132552A2007-05-31
JP2013167423A2013-08-29
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