The丸尘混合物 that falls is transported by the recycling spiral to the hopper of the room and collected by the longitudinal and transverse conveying spirals below the elevator. It is then elevated to the separator at the top of the machine. The pure pellets, separated from the mixture, fall into the separator's hopper for reuse in the shot blasting cycle. Dust generated during the shot blasting process is directed to the dust removal system via a duct, where the purified air is released into the atmosphere, while the granular dust is captured and collected.