Internally Fed Rotary Drum Screen

Description Of Internally Fed Rotary Drum Screen

Internally Fed Rotary Drum Screen is an internally fed screening device, which the flow being fed and distributed inside a screening cylinder. it can be devided into open type or fully covered type according to the onsite working condition.

Working Principle Of Internally Fed Rotary Drum Screen

When water containing suspended particles enters the drum, the suspended particles are intercepted by the stainless steel filter, and the filtered water without suspended particles enters the clean water tank. When suspended solids accumulate to a specific amount in the drum, it will cause a decrease in the permeability of the filter screen, resulting in an increase in the water level in the drum. When the water level rises to the set high water level, press the operation button of the liquid level automatic control system. At this time, the backwash water pump and drum motor will automatically start at the same time. The high-pressure water pumped out by the backwash water pump will be backwashed by the backwash system of the microfilter to the rotating drum filter screen. The suspended solids remaining on the filter screen will be washed by the high-pressure water and enter the collection tank for discharge through the sewage pipe. After the filter screen is cleaned, the permeability of the drum filter screen increases, and the water level inside the drum decreases. When the water level drops to the set low level, the automatic control system works, and the backwash water pump and drum motor will automatically stop working. The Internally Fed Rotary Drum Screen enters a new working cycle.

Advantages Of Internally Fed Rotary Drum Screen

1. Exquisite structure and small footprint; Easy and fast installation.

2. Equipped with a fully automatic backwash device to keep the equipment in good working condition at all times;

3. The application of stainless steel and corrosion-resistant materials enhances their resistance to seawater corrosion and prolongs their service life;

4. The water head loss of the internal inlet microfilter is small, energy-saving and efficient; Smooth operation and low noise;

5. High degree of automation and convenient operation and maintenance;

6. The filter screen is easy to replace, and different specifications of filters can be used to meet different water quality treatment requirements.

Application Of Internally Fed Rotary Drum Screen

It is widely applicable to various occasions that require solid-liquid separation, such as the filtration of urban domestic sewage, papermaking, textile, printing and dyeing, chemical,residential and slaughter industry sewage. Especially suitable for the treatment of wastewater from seawater factory aquaculture and papermaking wastewater, to achieve closed-loop reuse.