多方位配煤掺烧模型的研究应用

Application of multi-aspect coal blending and blending burning model in coal-fired power plant

为缓解煤电企业设计煤种的供应压力,降低成本,分析了配煤掺烧中的关键参数,设计了一种基于企业生产全过程的多方位配煤掺烧模型,研究了模型在康平电厂的应用情况。结果表明,多方位配煤掺烧模型主要包括进煤管理、煤场管理、配煤方案设计和掺烧现场管理四大模块,可综合考虑燃烧效率、结渣结灰、污染物排放、企业运行状况和社会实时需求等因素,根据来煤情况、煤场各煤种的存储分布情况、锅炉运行情况及企业生产状态等,确定经济有效的掺烧方案。多方位配煤掺烧模型在康平电厂应用后,每年可使350万t原煤就地转化,节约煤炭运输成本6000多万元,节省原煤61万t/a,脱硫效率提高至95%,减少CO2排放量1.5万t,实现环保用水。

In order to alleviate the shortage of designed coal and decrease cost in coal-fired power plant,the key parameters of blending coal were analyzed. Based on the whole production procedure of coal-fired power plant,a multi-aspect model for blending coal burning was designed. The application of the model in Kangping coal-fired power plant was investigated. The model was composed of four function parts which were coal purchasing management,coal yard management,coal blending management and blending combustion management. The model could determine the cost-effective blending coal solution according to the coal properties,slag and ash characteristics,pollutant e-missions,market requirement,coal storage state in yard,boiler running conditions and so on. The model helped Kangping coal-fired power plant consume 3. 5 x106 tons local raw coal,saved transportation costs more than RMB 6x107 ,saved raw coal 6. 1x105 tons,reduced CO2 emissions 1. 5x104 tons every year.