基于无简仓的实时优化配煤系统研究

针对煤质差造成火电厂燃煤与锅炉设计煤质严重偏离,运行不稳等问题,分析了燃料管理落后环节和不适应因素,结合燃煤电厂燃料配煤和管理现状,提出了火电厂燃料无筒仓的实时优化配煤、燃料智能化管理系统构建的总体设计,给出燃料从计划、入厂、入炉、结算的精准计划管理的实时配煤解决方案.结果表明,采用无筒仓的实时优化配煤系统经过前置预处理沟,基于热值和硫含量的精确定位,配合在线监测、控制系统,对给煤进行调整混配,可实现燃料均匀混配,使燃煤粒度小于10mm,硫含量、热值均满足锅炉设计煤要求,保证锅炉稳定燃烧及污染物有效控制.多渠道分离输送装置及无筒仓封闭式储煤混配控制系统、燃料混配的智能化管理系统的构建在保证正常生产条件下,最大限度地降低生产成本和煤耗,提高了资金利用率,实现电厂燃料智能化管理.

Optimization of real-time coal blending system based on non-silos

Combined with the status of coal blending and management in fire-power plant,the shortcomings and unfitable elements in fuel management were analyzed.A design of intelligent fuel management and real-time coal blending system based on non-silos in power plant was proposed.The results showed that the pretreatment ditch and precise location based on calorific value and sulfur were set.With online monitoring and control system,the coal blending could be adjusted evenly,the particle size was less than 10 mm,the sulfur and calorific value of coal boiler could meet the design requirements,and it ensured the effective control of pollutants and the stable combustion of the boiler.A real-time fuel management solution and multi-channel separating and conveying device and control system of closed type coal blending based on non-silos was proposed.The solution could maximally reduce production cost and coal consumption,improve fund utilization rate and realize intelligent management of fuel.