COREX熔化气化炉填充床内未燃煤粉行为的实验研究

Experimental Research on the Movement of UPC in the Packed Bed of COREX Melter Gasifier

通过建立热态模型,利用石蜡模拟矿石,玉米粒子模拟焦炭和块煤,煤粉模拟未燃煤粉,用于研究COREX熔化气化炉填充床内的未燃煤粉。结果显示,在正常生产和风口回旋区塌料两种炉况下,填充床中的未燃煤粉有弥散和聚集两种分布形式;聚集形式的未燃煤粉从填充床中心向边缘发展。最后,结合本实验结果和前人研究成果提出了关于COREX的生产建议。

A thermal model was established for the study about the movement of UPC in the packed bed of COREX melter gasifier. In the model, the ore was simulated by wax, the coke and lump coal were simulated by maize, UPC is simulated by pulverized coal. The results showed that under both normal production and collapsing furnace state, UPC is dispersed or aggregated distribution in packed bed. And the aggregated UPC is development from center to edge in the packed bed. According to this experimental results and the previous research results, the production suggestions about COREX were given at last.