Gas scrubber for wet process rotary kilns

Details Gas scrubber for wet process rotary kilns Gas scrubber for wet process rotary kilns

1993-08-16

1994-06-14

Yuen, Henry C.

Heating

Tumbler-type rotary - drum furnace

432110, 432111, 432118, F27B 700

Patent

active

053205243

ABSTRACT:
In the initial part of a wet-process rotary kiln, means to decrease the amount of product dust entrained in the escaping combustion gases. Pipes running lengthwise of the kiln, in the region where the feed slurry is wet enough to flow, fill with slurry as they rotate through the slurry pool at the bottom of the kiln, and discharge their contents through exit ports so placed on each pipe as to emit streams of slurry when the pipe is carried by kiln rotation to a position near the top of the kiln. In conjunction with the forest of chains commonly used in such kilns, the transverse-flowing combustion gases are scrubbed of some of their entrained product dust content by its being entrapped in wet slurry and recycled.

REFERENCES:
patent: 3802831 (1974-04-01), Woodward
patent: 4676740 (1987-06-01), de Beus
patent: 4726765 (1988-02-01), O'Connor
patent: 4784604 (1988-11-01), O'Connor
patent: 4988290 (1991-01-01), Forster et al.
patent: 4993942 (1991-02-01), Boyden, II et al.

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