Abstract: Taking the VOC waste gas treatment equipment used in automobile painting workshop as an example,this paper discusses the way to delay the runner blockage. According to the practical experience,the feasible method to delay the runner blockage is summarized. The first is to reduce the paint mist content in the treatment gas from the source,and select dry circulating air treatment if conditions permit. The second is to ensure the capacity of the filter in front of the runner. Suggestions on the design and installation of the filter are put forward. This method provides a reference for the maintenance and use of waste gas treatment equipment in automobile painting and related fields in the future.

Key words: painting workshop, VOC equipment, blockage