Heating – Tumbler-type rotary - drum furnace – Having combustion products generated in or fed to drum
Patent
1997-07-01
1999-11-23
Leung, Philip H.
Heating
Tumbler-type rotary - drum furnace
Having combustion products generated in or fed to drum
432103, 432106, 432 14, F27B 736
Patent
active
059890185
ABSTRACT:
A method and apparatus for supplying lime sludge to a rotary kiln guides the flow of the lime sludge into the kiln, and the flow of flue gases out of the kiln, in distinct paths so that contact between the lime sludge entering the kiln and flue gases exiting the kiln is substantially prevented. This is typically accomplished by providing a general horizontal tubular duct interiorly of the kiln first end and extending into a substantially vertical flue gas conduit with an annular chamber defined between an outer surface of the tubular duct and an inner surface of an inlet to the first end of the rotary kiln. The lime sludge is introduced into the annular chamber. Spiral feeding blades are preferably provided on the outer surface of the tubular duct and the duct rotates with the rotary kiln so that the spiral feeding blades engage the lime sludge and move it toward the kiln. The lime sludge is preferably dried before it is fed into the annular chamber. Different types of baffles may be provided at a top portion of the annular chamber to cause any flue gas which enters the annular chamber to exit it, and flow into the vertical flue gas conduit, adjacent a bottom portion of the annular chamber.
REFERENCES:
patent: 3603569 (1971-09-01), Abboud
patent: 4255131 (1981-03-01), Johnson, Jr.
patent: 5110289 (1992-05-01), Mattelmaki
patent: 5213496 (1993-05-01), Avhenainen
patent: 5558432 (1996-09-01), Swisher, Jr.
patent: 5673748 (1997-10-01), May et al.
patent: 5746590 (1998-05-01), May et al
Ahlstrom Machinery Oy
Cu Jiping
Leung Philip H.
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