Cement producing system incorporating a waste derived fuel...

Details Cement producing system incorporating a waste derived fuel... Cement producing system incorporating a waste derived fuel...

2005-04-05

2005-04-05

Wilson, Gregory (Department: 3749)

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

C432S058000, C110S346000

Reexamination Certificate

active

06875015

ABSTRACT:
A cement producing system includes a rotary kiln, a riser duct having lower portion communicably connected to the rotary kiln to pass process materials thereto, and a down draft calciner having a lower portion communicably connected to the lower portion of the riser duct. A tertiary duct is communicably connected to an upper portion of the down draft calciner to receive heated tertiary gas therefrom and a suspension burner is operably disposed in the down draft calciner in a manner to permit receipt of combustible waste and suspension of the waste therein for combustion thereof. A method of producing cement using the burner in the down draft calciner is also provided.

REFERENCES:
patent: 4464111 (1984-08-01), Rastogi et al.
patent: 5816795 (1998-10-01), Hansen et al.
patent: 5989017 (1999-11-01), Evans
patent: 6470812 (2002-10-01), Arroyave-Garcia et al.
patent: 6773259 (2004-08-01), Bech et al.

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