入厂煤和入炉煤热值偏差影响因素分析

Analysis on the Influence Factors of Calorific Value Deviation of Incoming Coal and Boiling Coal

入厂煤和入炉煤热值差是火力发电厂燃料管理的一项重要指标,从采样环节详细分析了入厂煤与入炉煤热值差大的原因,提出了控制发电厂入厂煤、入炉煤热值差,做好人工制样偏差的检查和采样偏差分析,缩短存煤期,加强存煤管理,减少存煤流失等相应对策,使热值差指标得到较大改善。

The calorific value difference of incoming coal and boiling coal is an important index for the fuel management of the coal- fired power factory. The reasons of big calorific value difference of incoming coal and boiling coal were analyzed from the sampling process in detail. It is pointed out that through using the corresponding countermeasures which are controlling the calorific value difference of incoming coal and boiling coal, doing well in the inspection of artificial sample preparation deviation and the analysis of sampling deviation, shortening the storage of coal, strengthening the management of coal deposit, and reducing the loss of coal deposit,etc., the index of calorific value difference can be improved greatly.