| 摘要 |
In a box-type continuous hot air drying machine having a drying chamber through which yarn sheets are processed, the supply rate of thermal energy into the drying chamber is automatically controlled in accordance with the running condition of the drying machine, i.e., high speed running, low speed running and stoppage of the drying machine. Preferably cool air under pressure is introduced into the drying chamber when the machine stops running for accelerated cooling of the air and the yarn sheet in the drying chamber.
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