Bag Filter

A bag filter (sometimes incorrectly called back filter), also known as a baghouse filter, is one of the most important and efficient types of air and dust filtration devices, which due to the need to comply with environmental standards in factories and industrial centers. Also, in order to prevent the waste of the product produced in the factories and its distribution in the environment, as well as the observance of the physical and mental health of the workers, its use in many dusty environments is inevitable.

How the bag filters works?

Bag filters consist of cubic and sometimes cylindrical chambers with a funnel at the bottom with a slope of about 60 degrees. Fabric filters are placed inside the cubic part of the device, each of which is covered with a light metal basket as a holder. The air containing the dust is drawn into the machine by a centrifugal suction fan through the air transfer pipes, and the dust particles remain on the outside of the filters and the purified air passes through the upper part of the chamber. Finally, the pollution-free air is removed through the suction and returned to the environment.

High pressure air (6-8 bar) is used to clean the filter bag cloths. In this way, the compressed air stored by the compressor stored in the collector tank is blown through the piping network in the inner part of the fabrics, respectively, by the sudden opening and closing of the solenoid valves, which are controlled by the PLC switchboard. . With each sneeze of compressed air inside each row of baskets, the dust around the fabrics is cleared and falls into the funnel and is removed from the funnel by the rotary valve, thus the fabrics take turns during the interval. They are cleared at the scheduled time. This makes it possible to operate the device without interruption.