化工学报 ›› 2010, Vol. 61 ›› Issue (8): 1882-1888.

• 过程系统工程 • 上一篇    下一篇

流化床锅炉煤泥湿法输送系统建模与优化

江爱朋;姜周曙;王春林;陈立;江爱伟;邵兵;范家峰   

  1. 杭州电子科技大学自动化研究所, 浙江 杭州 310018;兖矿峄山化工有限公司, 山东 邹城 273500;山东华聚能源济二矿电厂, 山东 济宁 272072;邹城博达电力自动化工程有限公司, 山东 邹城 273500
  • 出版日期:2010-08-05 发布日期:2010-08-05

Modeling and optimization of slurry wet pipeline transportation system in fluidized bed boiler

JIANG Aipeng;JIANG Zhoushu;WANG Chunlin;CHEN Li;JIANG Aiwei;SHAO Bing;FAN Jiafeng
  

  • Online:2010-08-05 Published:2010-08-05

摘要:

煤泥发电是实现煤泥、煤矸石资源化利用最有效的途径,煤泥的湿法管道输送是煤泥燃烧发电过程中重要环节,存在最佳输送操作浓度问题。以煤泥输送流变特性、煤泥发热量特性以及流化床锅炉燃烧发电热力过程为基础,建立了煤泥湿法管道输送以及锅炉热利用模型,以及基于电耗与煤耗综合费用目标最小的最优经济性目标,通过非线性优化计算得到了电厂煤泥输送最佳含水量值。考虑到煤泥价格、电价以及其他参数对优化目标的影响,对煤泥湿法管道输送距离、电耗、煤耗等影响因素进行了系统分析与优化计算,得出了在上述参数发生变化时的最优操作工况以及相应组成成本情况。本研究结果对流化床锅炉运行优化与节能具有重要意义。

关键词:

煤泥, 流变特性, 湿法管道输送, 建模, 优化

Abstract:

It is the most effective resource use practices for slurry and slime to be used as fuel for power generation.The wet slurry pipeline transportation is an important part for the process of power generation, and there are design and operational optimization issues when pipeline transportation system was used .In order to achieve system optimization and energy conservation, the slurry wet pipeline transportation system model and the boiler heat utilization model were established based on rheological properties of slurry transportation, slurry heat and fluidized bed boiler combustion characteristics.Then an integrated optimization objective function based on power consumption cost and slurry consumption cost was established.The whole optimal problem was optimized by nonlinear optimization algorithm of SQP.Finally, with the consideration of parameters such as slurry price, wet slurry pipeline transports distance, power consumption, and other parameters which can impact the optimization objective, analysis and optimization calculations were carried out to obtain the detail results.The research results and present findings are of important significance to the operational optimization and energy conservation of fluidized bed boiler.

Key words:

煤泥, 流变特性, 湿法管道输送, 建模, 优化