煤 工业实践中处理煤时测定煤的堆密度

[中文适用范围]： 本文件规定了一种锥形方法，用于测定最大标称粒度不超过45 mm的破碎煤在工业实践中处理时的未压实堆密度。该方法关注的是在没有压实作用力的情况下，将物料流动到测量容器（箱）中所产生的煤的未压实堆密度。将煤装入焦炉是测定堆密度的一个典型例子。 [外文原描述]： This document specifies a cone procedure for determining an uncompacted bulk density of crushed coal up to −45 mm nominal top size, as it is handled in industrial practices. It focuses on the uncompacted bulk density of coal resulting from flowing the material into a measuring container (box) in the absence of compacting forces. The determination of the bulk density of coal charged into coke ovens is a typical example. This document also provides a method for determining the bulk density of dry powdered coal at −63 micrometres for boiler or utility application. It does not cover the determination of bulk density of coal in storage piles.