For filtering large volumes of gas-air mixtures, reverse airflow cleaning is often used. How does a baghouse work with a reverse air system? The filtered medium is fed from the bottom into a wide and long bag, where particles fall due to gravity. According to a set schedule, the direct gas supply is turned off, and a fan creates a counterflow, driving the accumulated contaminants into a waste receiver. The advantages of this technology are its simplicity and high efficiency, as well as an almost continuous operating mode.
Since aerodynamic compression of the fabric bag occurs when the ventilation is reversed, the fabric walls are reinforced with spacer rings. The rings prevent the bag from collapsing completely, significantly enhancing the purification efficiency of equipment.
When choosing a regeneration method, the type of fabric, apparatus design, emissions characteristics, technological process, and other factors are important.