| 摘要 |
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 DIFFERENCE 0.4)x42.3/ 2ROOT 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.
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