使用数据采集系统实时采集试验过程中的压力、流量数据，同时对筛管防砂后的流体采样，并进行粒度分析。
It can collect the pressure and the flow by da (data acquisition) system during testing, also can sample and analysis the grain size of the flow after controlled sand.
对小型锤片式无筛粉碎机进行粉碎试验，分析比较了影响加工粒度的因素。
According to the experiment of minitype hammer no-sieve disintegrator, we analyze the effect factor of machining granularity.
通过对洗矿作业的查定及产品粒度组成和回收试验结果的分析，论证从溢流中回收流失的锰矿物的必要性和可能性。
After checking the whole ore-washing process, and analysing the particle size and the experiment results, this paper shows the necessity and possibility of recovering the lost Mn.
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