If any of return sludge pumps is in off mode, it will be regarded as standby unit. If fault is found on duty pump, the standby pump will be automatically change over.
2
用真空泵除去污泥的固体含量而该泥水则经排水渠或回流渠排出。
The sludge is passed under a vacuum pump and allows the water to pass through a discharge or recirculation drain.
3
用于提升回流污泥或带渣质废水,能起到轴流泵所不及的作用。
For promotion of sludge or slag backflow qualitative wastewater, can play the role that less reliable.