Principle of Rotary Micro Drum Filter

Rotary micro drum filter is an efficient filtration equipment commonly used in industrial production. The rotary micro drum filter is composed of filter element, inner and outer shells, inlet and outlet pipelines, gear motor, etc. The filter element is the key component, the impurities and particles in the liquid and gas are filtered by filter element. There are many types of filter element, such as screen mesh, filter paper, filter cloth, etc. The filter element should be selected according to the filtering requirement.

1. Feeding and Filtering

When the raw liquid is sent to the rotary micro drum filter, it will be filtered by the filter element. The filter element is a cylinder, its outer surface is covered with screen mesh, filter paper, filter cloth, etc.

During the filtration process, the raw liquid will gradually permeate from the outer surface into the inner wall of the filter element, and flow along the inner wall. The impurities and particles will be intercepted on the outer surface of the filter element.

2. Cleaning and Recycling

A lot of impurities and particles will gather on the surface of the filter element with the filtration process, the filter effect will be gradually reduced. Therefore, the rotary micro drum filter needs to be cleaned and maintained regularly.

The cleaning process includes flushing, blowback, chemical cleaning, etc. Flushing is using cleaning liquid to wash away impurities and particles deposited on the filter element. Blowback is using compressed air to blow away impurities and particles. Chemical cleaning is using chemical solvent to dissolve impurities and particles.

After cleaning, the filter element can be recycled and reused. When recycling the filter element, attention should be paid to ensure that the filter element has been completely cleaned, so as to ensure the filter effect is good when reused.

3. Automatic Operating and Monitoring System

Rotary micro drum filter is usually equipped with automatic operating and monitoring system. The system is composed of sensors, flow meters, pressure gauges, etc. The system monitors the working condition of the filter in real-time, so as to ensure the equipment will work properly.

The automatic operating system will automatically control the start, stop, clean and other operations of the rotary micro drum filter. The automatic monitoring system will automatically monitor the inlet and outlet pressure, flow rate and other parameters in real-time. It will alarm in time or make corresponding adjustments.

4. Application Field

Rotary micro drum filter is widely used in industrial production such as food and beverage industry, pharmaceutical industry, chemical industry, sewage treatment industry, etc. It is used for filtering impurities and particles. It can filter suspended particles, solid particles and turbid substances, etc.

5. Conclusion

The working process of the rotary micro drum filter mainly includes feeding and filtering, cleaning and recycling, automatic operating and monitoring system, etc. The rotary micro drum filter intercept impurities and particles on the outer surface of the filter element, so as to filter the raw liquid. It is widely used in industrial production.