Patent ID: 8016642
Filing Date: 2011-09-13
Classification: B24C

Abstract:
1. A hybrid type blasting device for steel pipe inner surface that combines high-pressure injection and negative-pressure suction, comprising: a compressor for supplying high pressure air, a wiping material or a polishing material tank for dropping the wiping material or the polishing material into the high pressure air, a tubular carrier fluid inflow unit connected to one end of a steel pipe installed horizontally, and a suction blower for suctioning the air inside the steel pipe from the other end of the steel pipe, wherein the compressor and the wiping material or polishing material tank are arranged upstream from an edge face of the tubular carrier flow inflow unit such that the wiping material or the polishing material is injected into the tubular carrier fluid inflow unit horizontally along with the high pressure air from a hole formed in the edge face of the tubular carrier fluid inflow unit.