Title:
SCREW TYPE SEPARATION DEVICE AND WASTEWATER TREATMENT SYSTEM
Document Type and Number:
Japanese Patent JP2023078238
Kind Code:
A
Abstract:
To provide a screw type separation device where reduction of operability is suppressed.SOLUTION: A screw type separation device comprises: an object discharge port to be disposed at one end side and discharge a dehydrated object; a casing to be disposed at the other end side from the object discharge port and has an object putting hole into which the object is put; a screw shaft to be disposed at the inside of the casing and extend along an extending direction being a direction extending from one end part to the other end part; a first screw blade to spirally extend on an outer peripheral surface of the screw shaft; and a second screw blade to spirally extend on the outer peripheral surface of the screw shaft so as to be separated at prescribed intervals along the extending direction to the first screw blade. In the object discharge section of an object discharge port side, the first screw blade among the first screw blade and the second screw blade is disposed. In an object transportation section of an object putting hole side from the object discharge section, both of the first screw blade and the second screw blade are disposed and the pitch of the first screw blade in the object discharge section is shorter than the pitch in the object transportation section.SELECTED DRAWING: Figure 1
Inventors:
SUGAWARA YOSHIYUKI
Application Number:
JP2023036262A
Publication Date:
June 06, 2023
Filing Date:
March 09, 2023
Export Citation:
Assignee:
METAWATER CO LTD
International Classes:
B01D43/00; B30B9/16; C02F11/125
Attorney, Agent or Firm:
Sakai International Patent Office
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