Ghana+Rotary Drum Screen+Paper mill

September 8, 2022 Ghana

Product: Rotary Drum Screen

Country: Ghana

Application: Paper mill

Why paper mill needs rotary drum screen:

As we all know, the paper industry is a water-intensive, energy-intensive and polluting industry. There are a lot of organic pollutants such as SS, CODcr and BOD5 in the discharged white water, which will seriously pollute the environment. Therefore, in order to reduce water pollution, improve the reuse rate of water, and alleviate the contradiction of water shortage, most paper mills have adopted rotary drum screen for water treatment.

Type: Rotary Drum Screen
Core Components: PLC, Engine, Bearing, Gearbox, Motor, Pressure vessel
Screen size: 0.15-5 mm
Material: SS 304/316 L
Warranty time: 1 year

Advantages:

1. Simple structure, small footprint and small investment;
2. Large filtration capacity, high efficiency, low operating cost, and extremely simple operation.
3. The uniquely designed backwashing device fundamentally solves the problem that the filter screen is often blocked and easily damaged, and prolongs the service life of the filter screen.
4. The discharge of tailing pulp is automated, which greatly reduces labor intensity.

Working Principles:

Rotary drum screen is a simple mechanical method. It controls the amount of water inflow through the regulating valve, so that the liquid level of the water inlet and the water outlet will generate and maintain a certain liquid level difference. Suspended solids such as fibers in the white water are trapped on the filter screen, and as the suspended solids accumulated on the filter screen increase, a finer filter membrane will be formed. This filter membrane medium has relatively high flow rate characteristics under low hydraulic resistance, so that the size of the retained suspended solids is always smaller than the micropores on these filters. This is the main mechanism of the rotary drum screen to treat wastewater. With the continuous rotation of the filter cartridge, the suspended solids trapped on the filter screen are lifted to the top of the slag collecting hopper with the filter screen, and the pressurized cleaning water sprayed from the cleaning nozzle is recoiled and falls into the slag collecting hopper, and is discharged by the filter. The slag discharge port is discharged into the slag collection tank, and the filtered white water overflows from the water outlet. After washing, the filter screen enters the next circle to filter this cycle, that is the entire filtering process.

After-Sale Services

Quality guarantee: 12 months after the equipment having been operated.
Satisfied after-sell service: free maintenance and inspection.
Detailed installation instructions, CAD drawing and product qualification certificate.