Impact shaker screening processes and various factors

 

    The technical and economic indicators screening process is screening efficiency and productivity. The former quality indicators, the latter for quantitative indicators.

There is a certain relationship between them, but also with many other factors, these factors determine the result of screening.

    Factors affecting the screening process can be roughly divided into three categories:

    First, the physical properties of the material to be screened

    Including grain size of the material itself, humidity, clay content and particle shape.

    When the material fines content is high, productivity is also large sieve. When the humidity of materials, in general screening efficiency will be reduced. However, larger

mesh size, the smaller the influence of water, so the larger the wet material containing water, in order to improve the screening process, the general approach can be used to

increase the mesh, or the use of wet sieving. Materials containing large mud (mud when greater than 8%) should be used wet sieving, or pre-washing.

    Second, the screen surface properties and structural parameters of


    Shaker is to make the particles and the screen surface for vertical movement, so the high efficiency, large production capacity. The relative motion of particles and the

screen surface is parallel to the main sports bar screen, flat shaker, drum sieve, with its screening efficiency and productivity are low.Semi-mobile crushing plant

    For a given material, the sieve productivity and efficiency depends on the mesh size sieve. Productivity depends on the width of the screen surface, wide screen and high

productivity. Screening efficiency depends on the length of the screen surface, the screen surface long high screening efficiency. Average aspect ratio of 2.

    Effective sieve area (ie, the entire screen surface area and sieve area ratio) is larger, the productivity per unit area of ​​the screen surface and higher screening

efficiency.

    Sieve size is larger, the greater the productivity of the screen surface units, screening efficiency.

    Third, the production conditions of

    When the load is large sieve screening efficiency is low. Largely peaceful sieve sieve size and the total rate depends on screening efficiency; sieve larger, requiring lower

screening efficiency, the productivity is higher.complete crushing plant

    Feeding homogeneity very meaningful for the screening process.

    Sieve inclination to be appropriate, generally determined by experiment. Then the amplitude of vibration times the sieve, the sieve structure which sex-related, in a certain

range, the vibration can be increased to increase screening targets.