Oxygen lancing for production of cement clinker

Details Oxygen lancing for production of cement clinker Oxygen lancing for production of cement clinker

1995-02-13

1996-11-12

Bennett, Henry A.

Furnaces

Process

Incinerating refuse

110342, 110226, 110246, 432111, 432118, F23B 700, F23B 1400

Patent

active

055729380

ABSTRACT:
Oxygen is lanced into the main combustion reaction of a cement kiln to increase heat transfer to the clinker bed and to increase clinker production. Oxygen is separately lanced along the floor, i.e. the lowest wall of the kiln, to delay mixing with the flame to provide deep staging. The deeply staged oxygen flow is adjusted frequently to control emissions and stabilize the burning zone while the primary oxygen flow is maintained constant.

REFERENCES:
patent: 3302938 (1967-02-01), Bendy
patent: 3404199 (1968-10-01), Hoffmann
patent: 4741694 (1988-05-01), Mason et al.
patent: 4934931 (1990-06-01), Angelo, II
patent: 5372458 (1994-12-01), Flemmer et al.
patent: 5377603 (1995-01-01), Reese et al.

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