Impact of mine shaker, trommel efficiency factors can be simply divided into
Structural vibration sieve , sieve material nature is working operating conditions and so on. Wherein the configuration parameters include the shaker screen surface width and length , inclination of the screen surface , the mesh size , shape, and opening ratio.
As to the nature of the material and working conditions on mine shaker is relatively easy to understand , then shaker screen surface structure , especially what impact the efficiency of screening na ?
mine shaker screen surface width and length
Generally , mining vibrating sieve determine the width of the sieve surface capacity , the wider the screen surface , the greater the yield ; ore determine screening efficiency and with a vibration sieve sieve surface length , the longer the screen surface , the higher the efficiency , screening more clean. However, the mine increased shaker screen frame width is limited structural strength . Generally, the larger the width , the shorter the life of the screen frame . Our mining vibrating sieve width generally less than 3m, while some countries sieve wide 5.5m. Mine shaker design and production process is generally in determining the width of the screen , then the ratio of the screen according to the structure longer than OK. Mine shaker aspect ratio to use more two coal vibrating screen with an aspect ratio of 2.5 .
mine vibrating sieve surface inclination
Screen angle effect on sieve size is relatively easy to understand. Screen surface inclination large, easy to discharge oversize material , large capacity, and sometimes inclined installation screen surface , the speed of the screen surface material layer on the fast forward movement , but the screen surface material stays shortened, reducing the particles through the sieve opportunity to reduce the screening efficiency . That is not easy to sieve clean.
mine shaker sieve , shape and opening rate
The larger the mesh unit area of the screen , the higher processing capacity , the production of the screen , the larger the particle size of conventional screening , so that the mesh size is usually equal to mesh ; mesh , but when the requirement is small, mesh sieve size should be slightly larger than that ; for approximate screening , much larger than the mesh sieve size .
Common mesh shape shape of round, square and rectangular are three circular and square mesh sieve was obtained in a more regular , and the flaky particles are easily leave out the strip from the rectangular meshes , Thus , a rectangular mesh is generally less available. However, in the wet sieving , viscous materials , if the long side of the rectangular sieve ( sieve often called seam) along the moving direction of the material is arranged on the sieve , the sieve can reduce obstacles to the material , thereby reducing clogging . In constant mesh size , the larger the opening rate of screening the more favorable rates often restricted opening screen surface strength , life .
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Join date : 2014-02-21