消除动筛跳汰机卡矸、堵筛现象的应用研究

摘要

Analyzes the reasons of stucking gangue and blocking sieve in movable sieve jig,puts forward that a-dopting circular arc wave sieve plate instead of straight square hole sieve plate,and the industrial applications compar-ative tests show that use arc -shaped hole sieve bed not only eliminating the production of big material through the sieve,reducing the material quantity through the sieve sharply,eliminating the phenomenon of stucking gangue and blocking sieve mainly,but also increasing the efficiency of coal preparation and reducing the imperfect degree,impro-ving the process effect of movable sieve jig.%分析了动筛跳汰机卡矸、堵筛的原因，提出采用圆弧波浪形筛板代替直方形孔筛板，通过工业应用的对比试验表明，使用圆弧形孔筛床不仅杜绝了大块透筛物的产生，大幅度降低了透筛物量，卡矸、堵筛现象基本得以消除，而且提高了选煤效率，降低了不完善度，改善了动筛跳汰机的工艺效果。