Filters are key equipment for separating materials in chemical production processes and play a crucial role in upstream and downstream processes.During the operation of the filter,materials are prone to adhere to the filter element,resulting in a decrease in filtration area and an increase in operating pressure difference.Therefore,it is necessary to clean the dust in a timely manner.By remotely and automatically controlling the blowback valve through the PLC system,the filter element can be cleaned with fixed resistance or timed cleaning,ensuring the continuous and effective operation of the filter and ensuring the long-term stable operation of the entire device.