A few days ago, the China Shipbuilding Ninth Design and Research Institute Engineering Co., Ltd. and the China Shipbuilding Industry Corporation's Planning and Development Department jointly carried out the “Research and Practice of Dust Pollution Prevention and Control Technology for the Construction and Shipyard Production Facilities Construction Project”, which passed the expert review. The "patent welding treatment patent technology" plan is promoted and applied in a number of repair shipyards under CSIC.
It is understood that after using the high vacuum welding fume purification system and displacement ventilation system developed by Jiuyuan Company, the average dust concentration in the workplace air is significantly lower than that when not used. The technology is also suitable for manual welding and semi-automatic welding in the shipyard welding shop. CO2 protection welding, welding line, plane segmentation line and other work stations play an active role in reducing welding smoke pollution in the workshop and ensuring the occupational health and safety of welders, with good environmental, economic and social benefits. The technology proves that the treatment device has a significant effect on the welding fume treatment in the welding fume treatment engineering practice of the workshop component welding workshop of Dalian Shipbuilding Industry Group Co., Ltd. The high efficiency of the welding process of the high vacuum welding fume purification system in the project is 98.2%. The catching efficiency of the mouthpiece is up to 93.6%.
Up to now, Jiuyuan Company has completed the welding fume treatment work of the component welding test in the large ship company, and the welding fume treatment in the curved surface welding workshop, and completed the preliminary welding fume treatment plan in Qingdao Beihai Shipbuilding Heavy Industry Co., Ltd. In addition, a number of companies under the CSIC Group have also contacted the Jiuyuan Company to express their welding fume treatment.

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