1 preparation time is longer than mixing and discharging time. Because the preparation of various raw materials needs to be completed after the preparation, in this case, there is a large amount of idle time in the whole process, which can only wait for the preparation work, which greatly reduces the workload and efficiency of each workflow. Time unit. Unable to complete the corresponding workload.

　　2准备时间小于或等于两者之和。 混凝土生产过程中工作效率的计算比较大，也就是说，总生产时间过长，会破坏整个混凝土的生产平衡，工作效率低。

　　2 the preparation time is less than or equal to the sum of the two. In the process of concrete production, the calculation of work efficiency is relatively large, that is to say, the total production time is too long, which will destroy the production balance of the whole concrete, and the work efficiency is low.

　　准备阶段的浪费时间太长，这意味着原料的称量或运输过程太长。

　　The waste time in the preparation stage is too long, which means that the weighing or transportation process of raw materials is too long.

　　由于其特殊性，诸如砾石和卵石之类的材料很难运输到搅拌机中，因此在这段时间内称量水泥，固化剂和液体需要很长时间，并且可以终止运输，因此砾石和 卵石可以根据标准的时间称量和运输方式直接确定混凝土搅拌站的效率。

　　Due to its particularity, materials such as gravel and pebble are difficult to transport to the mixer, so it takes a long time to weigh the cement, curing agent and liquid during this period, and the transportation can be terminated, so gravel and pebble can be directly determined the efficiency of the concrete mixing plant according to the standard time weighing and transportation mode.

　　在实践中，我们可以控制称重工具的速度，使运输设备可以大大增加运输工作量，对于减少砂石的运输时间非常有利。 这些是混凝土搅拌机效率低下的原因。

　　In practice, we can control the speed of weighing tools, so that the transportation equipment can greatly increase the transportation workload, which is very beneficial to reduce the transportation time of sand and stone. These are the reasons why concrete mixers are inefficient.