| 摘要 |
PROBLEM TO BE SOLVED: To provide a screw press dehydrator capable of greatly reducing the using quantity of a coagurant since it is not necessary to make a flock excessively large, capable of making a running cost (chemical expense) low, and capable of preventing clogging since filter cloth can be cleaned continuously. SOLUTION: Using the filter cloth 12 running endlessly, a part of the filter cloth is inserted into a cylindrical path formed by an outer screen 13 and an inner screen 14 provided with a plurality of holes. And through the cylindrical path, the filter cloth is drawn out outside the screen to suspend on a cylindrical driving device 16, and the filter cloth is moved endlessly so as to make cleaning by a cleaning device 17.
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