摘要
铜冶炼过程产生的烟气中含有大量的二氧化硫,为使二氧化硫得以充分回收利用,对喷雾冷却系统在铜冶炼时降低烟气温度的原理和实现方法进行了研究。冷却系统采用喷雾冷却枪将恒定压力的水汽混合物喷入冷却器中。对烟气进行冷却并将出口烟气温度控制在恒定值。运用热力学传热传质相关原理,对不同喷嘴压力下的出口温度进行建模并采用Matlab仿真,最终确定了有效控制温度时的喷嘴压力。该方法为热力学与自动化结合提供了新的思路。
In flue gas produced in copper smelting process,there is a large amount of sulfur dioxide,in order to fully recycling of sulfur dioxide,the principle and implementing method of the spray chilling system to reduce the temperature of flue gas are researched.The spray chilling gun is adopted in the system,to spray the water/steam mixture under constant pressure into chiller for cooling the flue gas and control the outlet flue gas temperature in constant value.Using the thermodynamic heat and mass transfer principle,the model of outlet temperature under different nozzle pressure is established,and simulated with Matlab,thus the effective nozzle pressure for controlling temperature is determined.The method provides new concept for the combination of thermodynamics ad automation.
出处
《自动化仪表》
CAS
北大核心
2013年第11期59-61,65,共4页
Process Automation Instrumentation
关键词
恒压供水
温度控制
MATLAB
PLC
压力传感器
Constant pressure water supply
Temperature control
Matlab
Programmable logic controller（PLC）
Pressure sensor
