Rotary Drum Screen

Solids And Liquid Separator

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Media Filter

The technology of this equipment is called micro filtration. It is used to separate the micro suspended solid (paper fiber) out of the liquid to reach the aim of solid-liquid separation. The difference of micro filtration is that the filter media has tiny space and intercept the suspended solid by the centrifugal force of the filter drum.

This equipment is designed aiming at improving the current drum filter which is easy to be clogged, easy to be damaged, high maintainance cost and other problem.

It can be applied in any circumstance which need solid-liquid separation, such as municipal sewage treatment, paper making wastewater treatment, printing and dyeing wastewater treatment, chemical wastewater treatment and ect. It is particularly applied in papermaking wastewater treatment.


Product Details

Product introduction

 

The technology of this equipment is called micro filtration. It is used to separate the micro suspended solid (paper fiber) out of the liquid to reach the aim of solid-liquid separation. The difference of micro filtration is that the filter media has tiny space and intercept the suspended solid by the centrifugal force of the filter drum.

This equipment is designed aiming at improving the current drum filter which is easy to be clogged, easy to be damaged, high maintainance cost and other problem.

It can be applied in any circumstance which need solid-liquid separation, such as municipal sewage treatment, paper making wastewater treatment, printing and dyeing wastewater treatment, chemical wastewater treatment and ect. It is particularly applied in papermaking wastewater treatment.


Main structure and working principle


The drum filter is a mechanical filtering device, consisting of driving device, overflow water distributor, washing water device, filter screen, base and other parts. the filter screen is stainless steel wedge wire screen.

When the sewage water enters the overflow water distributor through the water inlet, it will stay a while to steady the flow. Then it will flow out evenly through the water outlet and distribute on the filter screen which is rotates in contrary direction. The water flow and the inner screen generate relative shear movement. The the solid will be separated and discharged from the other end of the screen and the waste water flows out from the effluent outlet at the bottom. The outside of the filter screen is configured with washing pipe which can ensure the filtering capacity of the filter screen.


Features

Simple structure, stable operation, easy maintainance and long using life.

High treatment capacity, high efficiency. Generally the recycle rate of the waste fiber is more than 80%.

Easy installation, less space covering, low speed operation, energy saving.

Continuously automatic operation, the recycled fiber concentration can reach more than 12%.


Main technical parameters