Pneumatic disc filter

The purpose of a pneumatic disc filter is to clean the inner surface of the filter screen by vertically moving a scraper that is powered by an air cylinder. It applies to filtering in highly viscous liquids, corrosive, inflammable, and explosive conditions, and utilizes a PTFE ring scraper.

A pneumatic disc filter is a simple and effective filter, made of a disc and strainer basket. Its filter rating of it is from 50μm to 2000μm, which is a wide range. Compared with conventional filters, it has a simple design and structure and can clean the filter element without contact.

With the self-cleaning characteristic, the pneumatic disc filter needs less maintenance and accordingly reduces the operation cost. Besides, it can continuously filter during the cleaning process, which can largely improve efficiency. It can be naturally integrated into the original equipment and have no affect on the operation of the original equipment. When it is installed, you can choose any direction you want.

The reasonable design makes it easy to install and clean. In addition, a pneumatic disc filter can reduce the loss of high-value materials. Due to the low differential pressure, it can need less energy to operate.

By utilizing the principle of physics, we can have this pneumatic disc filter. Solid contaminants are filtered out and left on the inner surface of the filter screen as the unfiltered liquid enters the filter from the intake.

The outlet releases the filtered liquid. When the filter screen needs cleaning, a timer setting or a differential pressure sensor will start the cleaning process. The solids deposits are continuously scraped off the inner surface of the filter screen by a spring-tightened clean disc that is tightened with a spring. These pollutants are released through the drain exit after they come off.