Method for driving a rotary kiln for roasting cement raw meals

Details Method for driving a rotary kiln for roasting cement raw meals Method for driving a rotary kiln for roasting cement raw meals

1984-04-11

1986-03-25

Camby, John J.

Heating

Processes of heating or heater operation

Including passing, treating or conveying gas into or through...

432106, F27B 1500, F27B 702

Patent

active

045780293

ABSTRACT:
A rotary kiln for roasting cement raw meals provided with, on the raw meal inlet side of the kiln, a suspension preheater having a calcining furnace, which includes a kiln body lined with refractory materials, a mechanism for supporting said kiln body with a slight inclination to the horizontal, and a mechanism for rotating the change kiln body around an axis thereof and on the supporting mechanism at a variable speed, wherein the slope of the axis of the kiln body ranges from 1.5% to 3.5% and the maximum rotational speed of said kiln body is in a range represented by the following equation: N=(0.2.about.0.4).times.42.3/.sqroot.D wherein N is the maximum rotational speed of the kiln body, and D is the inside diameter of refractory materials in the granulating zone of the kiln, thereby improving the granulation of the cement raw meals in the kiln.

REFERENCES:
patent: 3116055 (1963-12-01), Pixley et al.
patent: 4420302 (1983-12-01), Knudsen
patent: 4435159 (1984-03-01), Knudsen

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