How to Determine Length-Diameter Ratio of Ceramsite Kiln

The sizes of ceramsite kiln parts are generally related to kiln diameter that is cylinder diameter; the diameter of rolling circle, wheel and gear ring, as well as size of sealing device are also determined by diameter of ceramsite kiln. The ratio of length to diameter is a very important parameter, this article makes detailed introduction to methods of determining the length-diameter ratio of ceramsite kiln.
There are two representations for length-diameter ratio of ceramsite kiln.
One is the ratio of effective length L to cylinder diameter D; L typically refers to the whole length of kiln, as for kiln with multi-cylinder cooler, we should deduct in the part from discharging mouth to kiln eye of cylinder; and D refers to average internal diameter of cylinder.
The other one is the ratio of L to D' which is the mean effective diameter of kiln. L/D can more precisely reflect the thermal characteristics of ceramsite kiln. Effective length-diameter ratio is L/D'.

F is internal surface area of ceramsite kiln, Di and Li are effective diameter and length (m).
Having determined usage of  kiln, feeding way and heating method, we should first determine the length-diameter ratio of ceramsite kiln. Main factors affecting the ratio of length to diameter are firing temperature, heat consumption and feeding method.
What need attention is that, length-diameter ratio of similar kilns are also related to kiln diameter, small value is suitable for small kiln, and large value is suitable for large kiln, so that ensure the thermal performances are similar after enlarging shaft kiln diameter.

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