电磁振动式标准筛振筛机的筛分性能

将新型电磁振动式Φ200mm标准筛振筛机与机械振动式XSB－70B型Φ200mm标准筛机的筛分性能进行了比较，实验证明用二者进行粒度筛分分析的结果是相似的，电磁振动式Φ200mm标准筛振筛机由于有较高的振击频率，并能短时间内达到筛分终点，因而用以取代机械振动式标准筛振筛机是可能的。

The sieving performances of the standard test sieve shaker of the electromagnetic vibrative pattern

This article deals with the sieving performances of the new type of the Φ200 mm standard test sieve shaker which is vibrated by the electromagnetic force.In comparison between the sieving performances of the new type of the Φ200 mm standard test sieve shaker and the old type of the XSB-70B Φ200 mm standard test sieve shaker which is vibrated by the mechanical force,it has been proved by the experiments that the results of the laboratory size analyses of using respectively the two standard test sieve shakers are identical, and that the new type of the Φ200 mm standard test sieve shaker of the electromagnetic vibration pattern is easier to reach the end of the sieving sepration in the shorter time because of its higher vibrative frequency than that of the old type of the Φ200 mm standard test sieve shaker .It is possible to use the new type of the Φ200 mm standard test sieve shaker of the electromagnetic vibration pattern as a substitute for the old type of the XSB-70B Φ200 mm standard test sieve shaker.