Why Choose a Rotary Drum Screen?
The selection of Rotary drum screen as solid-liquid separation equipment is mainly based on its unique advantages and characteristics in specific application scenarios. The following are the advantages of choosing a rotary drum screen.
1. The core principle is simple and efficient.
The rotary drum screen relies on its precision-made filter screen for physical screening. Solid particles larger than the mesh size are trapped on the surface of the filter screen to form a filter cake, while water and fine particles smaller than the mesh pass through. This purely physical process does not require the addition of chemical agents, and the operation and management are relatively simple.
2. Large processing capacity and relatively small footprint.
Rotary drum screens are usually designed to operate continuously. Sewage flows through the rotating filter surface, and the filter screen is continuously flushed to maintain filtering capacity. This continuous self-cleaning feature enables it to handle large flows of water and has a high processing capacity per unit area.
3. Effectively remove suspended solids.
It is effective in removing fibers, hair, paper scraps, food residues, larger particles of organic and inorganic suspended matter, etc. Its filtration accuracy is usually between twenty microns and hundreds of microns, which can effectively reduce the load of subsequent processing units.
4. Relatively simple operation and maintenance.
Its core components are the rotating filter and cleaning device, which have a relatively simple structure and a high degree of automation, and can achieve continuous operation and automatic cleaning. Daily maintenance mainly involves the inspection, cleaning or replacement of the filter, and the cycle is relatively long.
5. Relatively low energy consumption.
The main energy consumption comes from the motor that drives the filter to rotate and the cleaning water pump. Compared with membrane filtration or deep filtration equipment that requires high-pressure backwashing, its energy consumption is usually much lower.
6. Suitable for a variety of water quality pretreatment.
Rotary drum screens are suitable for municipal sewage treatment, industrial wastewater treatment, circulating cooling water systems, landscape water bodies and aquaculture water treatment, rainwater treatment, and seawater desalination pretreatment.
Rotary drum screens are a kind of physical screening equipment with high efficiency, energy saving, relatively simple operation and maintenance, and moderate investment cost. They are particularly good at treating suspended solids with a particle size ranging from tens to hundreds of microns in large flow water bodies. They are ideal pretreatment or primary deep treatment options, especially for protecting subsequent more sensitive or more expensive treatment units.
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Nina
Email: nina@filtrationchina.com
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