The commonly used alloy hammer of vertical impact crusher has poor quality, short life and large consumption, affecting the equipment availability.
常用立式冲击破碎机合金锤头质量差，使用寿命短，消耗量大，影响了设备的运转作业率。
The paper theoretically analyzes the critical speed of the rotor system of a vertical impact crusher by use of the vibration theory, and the analyzed result is verified by experiments.
采用振动理论，对立式冲击破碎机转子系统临界转速进行理论分析，并进行了实验验证。
The property and feature of PSFL series vertical shaft impact crusher and application in coal water slurry production are introduced in this paper.
介绍了PSFL系列立轴双反击破碎机的性能、特点及在水煤浆生产中的应用效果。
This paper introduces briefly the sand processing history by both rod mill and vertical axis impact crusher.
本文分析了砂岩湿法棒磨工艺的现状和存在的问题，并提出了工艺改进的意见。
This paper introduces briefly the sand processing history by both rod mill and vertical axis impact crusher.
本文分析了砂岩湿法棒磨工艺的现状和存在的问题，并提出了工艺改进的意见。
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