污泥干化焚烧过程中的热量平衡计算  

Calculation of heat balance during sludge drying and incineration process

作　　者：张炳学 王冰雪 陈静 高召 侯中兰 ZHANG Bing-xue;WANG Bing-xue;CHEN Jing

机构地区：[1]河南路卡贝节能技术有限公司,河南郑州450001 [2]郑州大学化工与能源学院,河南郑州450001

出　　处：《节能》2018年第10期85-87,共3页Energy Conservation

摘　　要：以某污水处理厂的1000t/d污泥干化焚烧系统为例进行热量平衡计算,在该系统中,将含水率为80%,实际热值为6647.96kJ/kg的湿污泥干化至含水率为30%的污泥,需要饱和蒸汽热量100974.59MJ/h。干化后的污泥进行焚烧,经热量平衡计算,污泥自身的热量不足以支持焚烧炉燃烧,需要每小时补充天然气1324m3才能实现热量平衡。Taking the 1000t/d sludge drying and incineration system of a sewage treatment plant as an example, the heat balance calculation is carried out. In this system, the saturated steam heat of 100974.59MJ/h is needed to dry the wet sludge with the moisture content of 80% and the actual heat value of 6647.96kJ/kg to the moisture content of 30%. After drying, the sludge is incinerated. According to the heat balance calculation, the heat of the sludge itself is not enough to support the combustion of the incinerator, and 1324m3 of natural gas is needed every hour to achieve the heat balance.

关 键 词：污泥 干化 焚烧 热量平衡 

分 类 号：X705[环境科学与工程—环境工程]