1 概述众所周知,火力发电厂是耗煤的大户。一座容量仅为200MW 的高温高压电厂,其小时耗煤量达110t(煤的发热值按20.93MJ/kg 计算)。煤在送入锅炉燃烧之前,要经过装卸、输送、转运、筛分破碎等一系列运输和工艺加工过程,产生大量煤尘,严重地污染环境。经我们多年大量现 1 Overview As we all know, thermal power plants are large consumers of coal. A high-temperature and high-pressure power plant with a capacity of only 200MW has an hourly coal consumption of 110 tons (the calorific value of coal is calculated at 20.93 MJ/kg). Before the coal is sent to the boiler for combustion, it must undergo a series of transportation and technological processes such as loading and unloading, transportation, transportation, screening, crushing, etc., resulting in a large amount of coal dust, which seriously pollutes the environment. After many years of our