The Basic Structure of Single Screw Extruder (2)
Feeding System
The feeding system of single screw extruder is composed of hopper and feeding devices. The shape of feed hopper can be conical, cylindrical or rectangular etc. On one side of hopper there is a hole used for material observation, and at the bottom there is an opening and closing door used for feeding control. The hopper cover can be closed keeping dust, moisture and other contaminants outside. The material of hopper is normally aluminum and stainless steel plate. And the volume of hopper should contain the extrusion capacity at least 1- 1. 5 hours. The shape of feeding port can be either an rectangle, which is the preference, or a circle. The feeding way can be manual or automatic. Automatic feeding device mainly consists of blast-furnace burden, spring feeding, vacuum suction and so on.
The feeding system of single screw extruder is composed of hopper and feeding devices. The shape of feed hopper can be conical, cylindrical or rectangular etc. On one side of hopper there is a hole used for material observation, and at the bottom there is an opening and closing door used for feeding control. The hopper cover can be closed keeping dust, moisture and other contaminants outside. The material of hopper is normally aluminum and stainless steel plate. And the volume of hopper should contain the extrusion capacity at least 1- 1. 5 hours. The shape of feeding port can be either an rectangle, which is the preference, or a circle. The feeding way can be manual or automatic. Automatic feeding device mainly consists of blast-furnace burden, spring feeding, vacuum suction and so on.
