1. Belt conveyor is composed of conveyor belt, roller, roller and drive, brake, tensioning, redirection, loading, unloading, cleaning and other devices. There are two types of conveyor belts commonly used: rubber belts and plastic belts. The rubber belt is suitable for working ambient temperatures between -15 and 40 °C. The material temperature does not exceed 50°C. The inclination angle of 12° to 24° for conveying bulk materials upward. Patterned rubber belts are available for large inclination conveyors. Plastic belts have the advantages of oil, acid, alkali resistance, etc., but they have poor adaptability to climate, and are easy to slip and age. Bandwidth is the main technical parameter of belt conveyors. Two, screw conveyor is generally composed of three parts of the conveyor body, inlet and outlet and drive device; the spiral blade of the screw conveyor has three forms: solid spiral surface, belt spiral surface and blade spiral surface, among which, the blade type spiral surface has relatively few applications, mainly used to convey large viscosity and compressible materials, this screw suspension type, in the process of completing the conveying operation, has and completes the stirring of the material. Blending and other functions. 3. Buried scraper conveyor series products are widely used in metallurgy, building materials, electricity, chemical, cement, port, wharf, coal, mining, grain and oil, food, feed, etc. Qianyu Wangpu https://40653.qianyuwang.com/