The first stage large(single)cyclone separator adopts the principle ofcentrifugal separation.The sprayed powder is recycled and pumpedto the large cyclone separator,automatically separating the ultrafinepowder in the powder and air mixture.The ultrafine powder is separatedand pumped to the post filtration device,and high-quality powder is thentransported to the powder collection box through the recycling powderpump for recycling and reuse.