COREX熔化气化炉软熔区域的物理模拟

为了模拟COREX熔化气化炉软熔区域,建立了COREX熔化气化炉热态模型,设有热电偶和观察面板,可获得模型内部信息.在热态物理模拟实验中,考察了排料速度、石蜡与玉米体积比、风温和风量等操作参数对软熔区域的影响.实验结果表明,随着所选实验参数值的增加,风口回旋区发生塌料现象的可能性增加;当排料速度增加时,软熔区域位置降低,厚度减少;当石蜡与玉米体积比增加时,塌料前软熔区域位置升高,厚度增加,塌料后软熔区域位置降低,厚度增加;当风温增加时,塌料前软熔区域位置升高,厚度增加,塌料后软熔区域位置降低,厚度减少;当风量增加时,发生塌料前后软熔区域都位置升高,厚度增加.

Physical Simulation of Cohesive Zone in COREX Melter Gasifier

In order to simulate the cohesive zone of COREX melter gasifier,a thermal physical model was established.With thermocouples and an observation panel,the bed information inside the model was obtained.In the experiment,the influences of operating parameters,such as discharge rate,wax/maize volume ratio,blast temperature and blast volume on the cohesive zone were investigated.It was found that,with the increase of the selected parameters values,the possibility of raceway collapsing increases.When the disharge rate is increased,the location of the cohesive zone becomes lower and its thickness decreases.When the wax/maize volume ratio is increased,the location of the cohesive zone becomes higher and its thickness increases before collapsing,and its location becomes lower and the thickness increases after collapsing.When the blast temperature is increased,the cohesive zone position becomes higher and its thickness increases before collapsing,and the cohesive zone position becomes lower and its thickness decreases after collapsing.When the blast volume is increased,the cohesive zone position becomes higher and its thickness increases before and after collapsing.