A screw conveyor is a machine that utilizes a motor to drive the screw to rotate, thereby pushing materials for conveying purposes. It can convey horizontally, at an incline, or vertically, and possesses advantages such as simple structure, small cross-sectional area, good sealing, convenient operation, easy maintenance, and ease of enclosed transportation.

Screw conveyors are widely used in various sectors of the national economy, including the grain industry, building materials industry, chemical industry, machinery manufacturing, and transportation industry. Screw conveyors are primarily utilized for conveying a wide range of materials in powder, granular, and small block forms. The bulk materials conveyed encompass grain products such as cereals, beans, and flour, building materials like cement, clay, and sand, chemicals like salts, alkalis, and fertilizers, as well as bulk commodities like coal, coke, and ore.