Small-caliber steel pipe inner wall sand blasting device

Abstract

The invention discloses a small-caliber steel pipe inner wall sand blasting device which comprises a first connecting joint, a to-be-sprayed pipe and a second connecting joint. A sand inlet pipe is fixedly arranged on the left side face of the first connecting joint. A connecting pipe is fixedly arranged at the inner position of the left side face of the first connecting joint. A spray pipe is fixedly arranged at the right end of the connecting pipe. A fixed rod is fixedly arranged at the position, close to the right end, of the interior of the connecting pipe. A bearing is fixedly arranged inthe center of the fixed rod. A rotating shaft movably penetrates in the bearing. A limiting head is fixedly arranged at the left end of the rotating shaft. A spiral head is fixedly arranged at the left end of the rotating shaft. A sealing gasket is fixedly arranged at the position, located inside, of the left side face of the first connecting joint. Multiple T-shaped grooves are evenly formed onthe cylindrical face of the first connecting joint. The connecting joints capable of being mounted and inserted rapidly are arranged, and therefore sand blasting is more convenient and rapider, sand blasting is more thorough through a rotating head device, and sand blasting is safer through a closed sand blasting environment.

Description

technical field [0001] The invention relates to the technical field of sandblasting equipment, in particular to a sandblasting device for the inner wall of a small-diameter steel pipe Background technique [0002] In industry and daily life, steel pipes are mainly used for the transportation of various fluid media, including sewage, clean water, oily water, crude oil, etc. After a period of use, the inner wall of the pipe will form dirt due to the corrosion and deposition of the transported liquid, which will reduce the diameter of the steel pipe. The transmission resistance increases, the transmission capacity decreases, the steel pipe wall is corroded and perforated, and environmental safety accidents such as leakage occur. Therefore, special anti-corrosion treatment is required for the inner wall of the steel pipe. Before the special anti-corrosion treatment, sandblasting is required to clean the dirt and rust on the inner wall of the steel pipe to reveal the original met...

AI Technical Summary

Problems solved by technology

Before the special anti-corrosion treatment, sandblasting is required to clean the dirt and rust on the inner wall of the steel pipe to reveal the original metal color. Sandblast the nozzle to be sprayed with the sandblasting pipe, so that the cleaning of the pipe wall is likely to be incomplete, and the ejected sand is not easy to recover, and it is easy to splash and cause damage

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