| 摘要 |
An indirectly heated rotary calciner or dryer for high temperature operation, whereby it is important to reduce cylinder stress to achieve a reasonable life expectancy of the heated section of a cylinder even when the most exotic of metal alloys is used for its construction. The present invention is able to reduce the stress in the heated section of an indirectly heated rotary calciner or dryer cylinder by the use of either long extensions beyond the cylinder's riding ring supports or by shorter, weighted extensions beyond said riding ring supports, which act as moment arms and thus permit a calciner to be operated at substantially higher temperatures than would be the case had the invention not been employed, while still achieving good life expectancy.
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