A screw-driven shutter is a device commonly used in industrial production to control the flow and conveyance of materials. It consists of a spiral, a drive mechanism, a support device, an inlet, and an outlet.

The helix is the main component of the screw discharge valve, consisting of spiral blades and a spiral shaft. Through the rotation of the spiral blades, materials are transported from the feed port to the discharge port. The number, shape, and arrangement of the spiral blades can be adjusted to accommodate different material conveying requirements.