Spraying (throwing) rust removal is driven by a high-power motor to twist the spraying (throwing) blade at a high speed, so that abrasives such as steel grit, steel shot, iron wire segments, minerals and the like can spray (throw) the appearance of the steel pipe under the effect of centrifugal force, which can not only completely eliminate rust, oxides and dirt, but also achieve the required average roughness under the effect of abrasive fierce impact and friction.

After spraying (throwing) the rust, it can not only expand the physical adsorption effect of the pipe appearance, but also strengthen the mechanical adhesion effect between the anti-corrosion layer and the pipe appearance. Therefore, spray (throwing) rust removal is an ideal method for pipeline anti-corrosion. Generally speaking, shot blasting (sand) derusting is mainly used for pipe inner and outer surface disposal, shot blasting (sand) derusting is mainly used for pipe surface disposal.