一九七五年Campbell和Davidson首先报道了流态化燃烧期间煤粒的破碎。此后,一些学者,如Sarofim,Beer,Gibbs等,相继发表文章作了探讨,一致认为流态化燃烧期间煤粒的破碎是一个重要现象,会对燃烧过程产生重大影响。本文叙述流态化燃烧过程中煤粒破碎的现象,它对燃烧速率的影响,提出了估算大煤粒燃尽时间的公式。 Campbell and Davidson first reported in 1975 the fragmentation of coal particles during fluidized combustion. Since then, some scholars, such as Sarofim, Beer, Gibbs and others, have published articles discussing and agreeing that the fragmentation of coal particles during fluidized combustion is an important phenomenon that will have a significant impact on the combustion process. This article describes the phenomenon of coal particles crushing during fluidized combustion and its impact on the combustion rate. The formula for estimating the burnout time of large coal particles is proposed.