An Anhui heavy engineering machinery Co., Ltd. is a high-tech enterprise specialized in the development and production of fork loading and unloading trucks. The enterprise has a complete production line of finishing material, welding production line, painting production line and testing production line. Recently, the welding dust purification system designed and manufactured by Qingdao Lubo is mainly used for the collection and purification of smoke dust generated by the welding production line. The welding work position includes multiple manual welders and robot welders. After the design, production, construction and installation, completion and commissioning, the project was completed within the agreed period of time and passed the customer acceptance at one time. The operation during the use process was simple, the system was stable, the purification effect was significant, and the local relevant exhaust emission standards were achieved, and the users were well received.