| 摘要 |
PURPOSE:To make the dehydration treatment surer and a device simpler by providing spiral feed venes of a hollow shaft having the diameter increasing gradually from the rear part toward the front part and rotating the shaft in a casing. CONSTITUTION:The hollow shaft 30 for compressing a material which is to be treated and is supplied through a supply port 21 while feeding said material to a discharge port 22 side is rotatably provided in a casing 20. The shaft 30 is made gradually larger in diameter from the rear part toward the front part and is perforated with many holes 32, 23. The material to be treated is fed by the feed vanes 31 toward the port 22 side when the shaft 30 driven by a motor is rotated at a low speed. The water in the material is removed by the gradually decreasing gap between the shaft 30 and the inside circumferential surface of the casing 20 and is leached to the outside through the holes 32, 23. Since the shaft 30 rotates at a low speed, the device is made smaller and simpler and the sure dehydration is executed. |
