There are many factors that affect the screening rate of materials, and there are two main categories. One is the various characteristics of the material itself, and the other is the vibrating screen structure. After analysis, it was found that the reason for the clogging of the vibrating screen mesh is mainly due to the large number of fine-grained materials in the screening materials. The size of these fine particles is relatively close to the screen hole size, and it is easy to get stuck on the screen holes, causing blockage. In addition, the screening materials are also It is relatively humid, and the wet fine particles will stick to each other and stick to the screen surface, making the screening process difficult to complete. It is difficult to change the properties of materials, so the solution to the clogging problem should mainly focus on the structural form of the vibrating screen, the screen structure and other aspects.
The main methods to solve the clogging problem focus on two aspects: the structural form and vibration intensity of the vibrating screen and the structural form of the screen. Judging from the development of vibrating screen structural forms, various forms of vibrating screens have appeared, such as probability screens, relaxation screens, and equal thickness screens. They have made certain progress in solving the clogging problem, but their screens cannot be automatically Cleaning is generally only used for grading the above materials.