Superheated steam drying sawdust
salin made ​​with steam needed wood fiber superheated steam at a pressure drier to a moisture content of 2% -3%, wood and steam mixture is fed to the vertical heat exchanger, after discharged from the dryer, and sawdust in the cyclone separation of the steam, the test using a 13m-long single-tube heat exchanger, sawdust stopped-flow time of 12-15s, through the heat exchanger requires two chips, the drying time to reach 25-30 sec. Tests showed. The plate strength, moisture absorption can be good. A steam drying wood fiberboard made ​​of tensile strength and flexural strength are superior to fiber air dried, this plate strength, moisture absorption is good, the quality can be improved drying, to recover the costs for 2 years.

 

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