利用正交试验,对双卧轴搅拌机返回叶片数进行试验研究。极差分析结果表明:在相同的搅拌时间和搅拌臂围流布置的前提下,搅拌线速度是影响混凝土搅拌质量的首要参数;返回叶片数对搅拌质量有一定影响,在满足搅拌线速度为1.2m/s,返回叶片数为2个,双轴交错布置,双轴正正排列的条件时,混凝土搅拌质量较好。 Using orthogonal test, the number of leaves returned by twin-shaft mixer was tested. The results of range analysis show that the stirring speed is the most important parameter affecting the quality of concrete mixing at the same mixing time and the confining arm confluence. The number of returning blades has some influence on the mixing quality. When the stirring speed is 1.2 m / s, the number of blades returned to 2, arranged biaxially staggered, biaxially arranged conditions, the concrete mixing quality is better.