Overview of automatic winding type air filter design, reasonable structure, easy maintenance, easy to transport and assembly, filter using a planar structure, in order to increase the effective filtration area, meet the design requirements of wind capacity filter. Filter used in high strength, good chemical stability, does not produce toxic and harmful substances when burned in a fire situation, durable, by washing or blowing smoke can be reused after regeneration. This device is suitable for the need for air purification place of wind capacity, widely used in public works ventilation pharmaceutical, food, electronic instruments, chemicals, metallurgy, air conditioning, subways, power grids and other buildings, the purification system. The device can use a single, standalone, can also be used in combination with 1-3 units jointly by one or more sets drive means to meet the needs of different places. The main principle is to use the filter, filter and automatic winding system control components. New filter material mounted on the bin, when the intake air with a high concentration of dust laden air through the winding filter, the differential pressure before and after the filter gradually increased with the increase of dust. When the filter resistance rises to the final resistance value is set, the pressure switch activates, winding system update media, stop the drive when the differential pressure lowering, update media work is completed, re-filtered. Installation and commissioning of the winding type air filter installed in the air intake system of reserve air at the outlet of the filter around the sealed material, which pressed compacted to ensure sealing, when multiple filters in parallel, filtration unit The height, diameter and roll axis filter specifications, the length should be consistent to ensure synchronous operation of the filter. Do contact surface filter installed before running Check the filter holder has broken horn, flash, nicks, etc. filter should ensure smooth contact surface. The stopper plate should be adjusted accurately to avoid premature loss of the role of the police or the compression stroke with 1-2 layers of filter media thickness can be compressed. Filter installation required level, so as not to derail the automatic operation, the binder bar adjustment appropriate to ensure the filter both subject to certain restrictions, but is free to slide.