Application of sieve bend with vibrating and striking function in Xiegou coal preparation plant
LIU Xiaohui
QIU Guanglei
WANG Jiannan
Abstract：In order to improve dehydration efficiency of sieve bend and decrease moisture of mixed coal in Xiegou coal preparation plant,a striking device and a vibrating motor were installed on the screen surface of sieve bend.The using effects and economic benefits after trans-formation were also analyzed.The results showed that,the fine coal in crack of sieve bend was removed with the action of hitting.A steady vibrational frequency made the materials on surface of sieve bend distribute uniformly and move fluently.The transformation optimized the dehydration,desliming and classifying roles of sieve bend.The dehydration efficiency was increased from 32% to 55.5%,the moisture of coarse slime was decreased from 14% to 10%,the moisture of mixed coal was decrease by 0.2%,the calorific value increased by 0.48 MJ/kg.The coal preparation plant could save the cost of RMB 3.72×106 one year.
Keywords：sieve bend with vibration and strike functionmoisturedehydration efficiencymixed coal
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 9-11 )