Lime sludge kiln

Details Lime sludge kiln Lime sludge kiln

1986-10-01

1990-08-28

Yuen, Henry C.

Heating

Tumbler-type rotary - drum furnace

432111, 432118, 432119, 432 48, F27B 700

Patent

active

049521470

ABSTRACT:
A kiln for reclaiming quick lime from calcium carbonate sludge formed in the production of cooking liquors in a wood pulping process for the production of paper. The kiln provides increased output with lower energy input due to: measurement and control of oxygen content in the kiln; non-air mixing burner; castable refractory liner with tumbler ribs; a heat transferring chain system; and a variable speed exhaust fan and air flow control. The output of the kiln was increased by more than ten percent along with a forty-five percent improvement in energy efficiency at substantial cost reduction due to its efficient use of energy.

REFERENCES:
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patent: 3026627 (1962-03-01), Moklebust
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patent: 3448969 (1969-06-01), Windsor
patent: 3519254 (1970-07-01), Putman
patent: 3603569 (1971-09-01), Abboud
patent: 4181495 (1980-01-01), Bernt
patent: 4300837 (1981-11-01), Malbrunot

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