This text introduces the operation principle, valve position, velocity control, and the solution for key problems of velocity valve's control system for vertical semi-continuous casting machine.

本文介绍了立式半连续铸造机速度阀控制系统的工作原理、阀位、速度控制方式和各种关键问题的解决方法。

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This paper analyzes the failure in detail, discusses the theory of EMCS, the communication of intelligent low-pressure and the control theory of wind valve, and attempts a solution to the malfunction.

对发现的问题及故障原因进行了详细分析，讨论了机电设备控制系统与智能低压的通讯、风阀的控制原理，提出了解决方案。

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The accident is analyzed and the prevention method is provided, that is, preventing the pneumatic control valve of dilute salt solution pump from having breakdowns or changing the operating method.

分析了事故原因并提出避免事故的方法：避免淡盐水泵的气动调节阀发生故障或改变操作方法。

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