A screw feeding typed dehydration apparatus

摘要

The present invention provides a dehydrator of a screw feeder type including a cylindrical body (10) formed with a sludge input port (11) on one side, and a screen hole on the outer peripheral surface through which only moisture removed from sludge passes; a transfer screw (20) having a screw shaft (21) installed in the body (10) from one side to the other side rotated by a drive motor (23), a screw blade (22) spirally formed on the outer peripheral surface of the screw shaft (21), and the transfer screw transferring the sludge inputted through the sludge input port (11); and a compressive dehydrating member (30) installed to the other side of the body (10), compressing and dehydrating the sludge transferred from the transfer screw (20), and discharging a sludge cake to the outside. The compressive dehydrating member (30) is formed with a sludge cake discharge port (31) of which the diameter is deformed depending on the size of the sludge cake.