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在300×50×2600mm带有流化分离柱的灰熔聚冷模流化床中,选用具有实际意义的焦粉/灰球体系,通过考察不同操作条件及不同几何结构时灰球的分离效率及分离速率的变化特征,以确定这一射流流化床的适宜操作及几何条件。证明了对分离操作而言,射流分离分隔式的流化床具有操作弹性大的优点。基于实验结果及理论分析,指出流出分离柱高/宽比小于3.7时可获得稳定分离操作,并给出分离柱高效分离操作时的气速变化范围。本文研究结果可为灰熔聚气化过程中主体设备(射流床)的合理设计与操作提供参考
In the 300 × 50 × 2600mm with fluidized separation column ash fusion cold mold fluidized bed, the choice of a practical coke / gray ball system, through the study of different operating conditions and different geometry of the separation efficiency of the gray ball And the rate of change of the separation characteristics to determine the proper operation of the jet fluidized bed and geometric conditions. It proves that jet separation separable fluidized bed has the advantage of great operational flexibility for the separation operation. Based on the experimental results and theoretical analysis, it is pointed out that when the height / width ratio of effluent separation column is less than 3.7, a stable separation operation can be obtained and the variation range of the gas velocity during the separation operation of the separation column is given. The results of this paper can provide reference for the rational design and operation of the main equipment (fluidized bed) in the process of ash fusion gasification