这是一根长1.5米的空心圆柱状设备，可以利用升降机穿梭于液压挖掘机打通的给养通道。

This is a 1.5 m long hollow cylinder apparatus, can use the elevator shuttle to hydraulic excavator through food channel.

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排泥阀产品由液压缸和角式截止阀组合而成，液压缸内动力带动瓣升降，使阀体通道开或闭，以达到流体通断。

Mud valves and Angle by the hydraulic cylinder type combination valve, hydraulic power drive cylinder valve lift, the valve open or closed channel, in order to achieve the fluid off.

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该技术利用液流浮力变化驱动浮体升降来控制排水通道的开闭。

This technology is using current buoyancy change, floating body to control drain switch of passageway.

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