活性石灰回转窑烟气低温余热利用方案优化设计
胡定强，郭劲松，龙林林，汪静
（湖北省化学工业研究设计院，湖北 武汉 430071）
摘要： 以2伊800 t/d 活性石灰回转窑窑尾烟气低温余热梯级利用为基础，对比分析了余热发电和热交换在低温余热利
用上的不同。结果表明：余热发电可以吸收烟气中大部分能量，但发电效率很低；热交换过程能量利用率高，但消纳烟
气余热数量有限。低温烟气余热利用应重点考虑开发热用户。
关键词： 活性石灰；回转窑；烟气；余热
中图分类号： TK115     文献标识码： A     文章编号： 2095-0802-(2021)02-0079-03
Scheme Optimization Design of Utilizing Waste Heat of Low Temperature Fume from Active
Lime Rotary Kiln
HU Dingqiang, GUO Jinsong, LONG Linlin, WANG Jing
(Hubei Research and Design Institute of Chemical Industry, Wuhan 430071, Hubei, China)
Abstract: Based on step utilization of the waste heat of the low temperature fume from 2伊800 t/d active lime rotary kiln, the this
paper contrasted and analyzed the difference of cogeneration and heat exchange in utilizing waste heat. The result showed that
most of the energy could be absorbed if the waste heat was used by cogeneration, but the power generation efficiency was very
low; if the waste heat was used by heat exchange, the energy efficiency could be very high, but the utilization amount of waste heat
was too limited. Developing heat consumers should be first considered in the utilization of waste heat.

Key words: active lime; rotary kiln; fume; waste heat