| 摘要 |
Provided is a shot blast device for regeneration of a superannuated pipe comprising multiple shot blast heads which are rotated along the inner surface of a pipe; a shot supplier which has a shot supply tank connected to the shot blast head; a shot recovery device which is arranged in a front and rear direction with the shot supply tank and has a shot recovery tank connected to the shot blast head; and a transfer unit which transfers shots recovered in the shot recovery tank to the shot supply tank, thereby improving work efficiency. |
