Epoxy powder spray system for the external wall of steel pipeline

More and more epoxy powder has been used as external coating on buried steel pipeline at home in recent years. By description of the spray process of epoxy powder, expounded the constitution of the spray system and design consideration, work principle, and a design plan adopted in actual design process. Made a comparison to the spray systems at home and abroad, and pointed out the problems existed in the aspect of epoxy powder spray system in our country and put forward recommendations.