为充分了解入口带有加速段的方形分离器的放大特性 ,如分离效率和阻力 ,在定型尺寸为 70 0 mm× 70 0 mm的冷态试验台上进行了详细的研究工作 ,还作了结构优化试验 ,确定了入口加速段宽度的最佳值。在优化结构条件下 ,分离器的切割直径为 2 8μm,临界直径为 12 5 μm,阻力因数为3.12。研究表明该分离器的性能可以满足大型循环床设计需要 ,该结果对大型循环床的设计具有重要意义 In order to fully understand the amplification characteristics of square separators with accelerating sections at the inlet, such as separation efficiency and resistance, detailed studies were carried out on a cold test bench with a fixed size of 70 mm × 70 mm and a structure Optimize the test to determine the optimal width of the entrance acceleration section. Under optimal structural conditions, the separator had a cut diameter of 28 μm, a critical diameter of 125 μm and a drag factor of 3.12. Studies have shown that the performance of the separator can meet the needs of large-scale circulating bed design, the results of the design of large circulating bed is of great significance