How to solve the screen block of vibrating screen?
As the material is layered and screened on the screen surface, the larger the effective screening area, the greater the screen penetration rate per unit time of the screen surface, the higher the production efficiency. So in a certain capacity under the condition of increasing screen surface area can reduce the material thickness, can improve the screening efficiency to a certain extent, but also will make the vibration screen too bulky, increase equipment and construction cost. The vibration strength is too small, will cause the material can not fully loose effect through the sieve, increase the intensity of vibration can improve the screening efficiency, but if it is wet fine material, the material will be tightly glued to the screen, the whole layer of material movement, improve the strength of layered difficult vibration to solve congestion problems is not obvious, and the vibration intensity is too the assembly of linear vibration sieve plate, beam pipe, vibration caused damage, reduce the service life of the vibration sieve.
After analysis, found out the causes of vibration screen screen is blocked due to more screening materials of fine materials, the grain size and screen size is relatively close, easily stuck in the sieve, causing blockage; in addition, the screening material is wet, moist fine stick each other to form a group adhesion on the screen to complete the screening process. It is difficult to change the properties of materials, so the solution of blocking problem should mainly begin with the structure of vibrating screen and the structure of screen mesh. Two. The main methods to solve the clogging problem are concentrated in two aspects: the structural form and vibration intensity of vibrating screen and the structure of screen. From the development of vibration screen structure, the probability of screen, flip flow screen thickness screen, and other forms of vibration screen, there are some progress in resolving the blocking problem, but it can not be effective since the screen clean, generally used only for more than 13 mm material classification.
There are many factors affecting the screening rate of materials, but there are two main types of materials. One is the various characteristics of the material itself, and the other is the vibrating screen structure of the two.
