摘要
针对管道化溶出过程中熔盐炉加热系统难于控制、运行效率低、系统能耗高的现象,依据加热系统的运行机理,利用Control-Build工程控制软件建立了熔盐炉加热系统的仿真模型。得到了不同运行工况下热工参数的仿真值,与实际测得数据进行比较,误差在5%以内。应用该模型对系统进行仿真优化研究,结果表明:在保证矿浆温度的情况下,控制矿浆流量为283.5～297.5 m3/h,有利于降低加热矿浆所需熔盐的进口温度,达到节能目的;计算得到管道化溶出系统的清疤周期为56 d。
Based on the fact that heating system of molten salt furnace in tube digestion has some shortcomings such as being difficult to control, low operating efficiency and high energy consumption in the digestion process, a simulation model of the system is established with engineering control software Control-Build according to the operating mechanism of the system. The thermal parameters under different operating conditions are obtained from this model, and the errors compared with the site data are within 5%. The simulation result for the system shows that if the pulp temperature meets the requirement, the control of pulp flow around 283.5 -297. 5 m3/h is beneficial to reduce the required molten salt temperature of heating pulp, which can achieve the objective of energy-saving. According to the simulation, the scar cleaned cycle of tube digestion system is found to be 56 days.
出处
《现代化工》
CAS
CSCD
北大核心
2012年第9期103-106,共4页
Modern Chemical Industry
