煤流在立式煤仓中多次反弹下落能量变化方程的建立  

Energy Change Equation during the Course of Coal Rebound Downcast in Coal Bunker

作　　者：张向东[1] 兰常玉[1] 余建荣[1] 于景泉 

机构地区：[1]辽宁工程技术大学,阜新123000 [2]开滦集团有限公司,唐山063000

出　　处：《科学技术与工程》2008年第11期2960-2962,共3页Science Technology and Engineering

摘　　要：建立了煤流在立式煤仓中多次反弹下落能量变化方程。指出煤流在煤仓中的多次反弹下落过程可以看作是煤流能量变化的过程。得到含水量越大煤粒的不均匀系数Cu值趋于稳定值的速度越慢,这一点说明在冲击过程中水分吸收了一部分能量,减慢了煤粒的分解,有一定的缓冲作用。在含水量相同的条件下,煤流的冲击速度越大,Cu值趋于定值的速度越快的结论。A energy change equation during the course of coal rebound downcast in coal bunker was established.The course of coal rebound downcast in coal bunker is a energy change course. The increase of moisture content will slow up the rate of speed which Cu drive to stabilization. This declarated that moisture content inhibited the coal cracking and the water imbibite energy; the increase of collision velocity will accelerate the rate of speed of Cu.

关 键 词：能量 煤仓 煤流 动能 

分 类 号：TD529.1[矿业工程—矿山机电]