An automatic sandblasting machine for the inner wall of a pipeline

Abstract

The invention provides an automatic sand blasting machine for the inner walls of pipelines. The automatic sand blasting machine comprises a material storage device, a conveying device, a feeding device, V-shaped supports, pipe rotation driving devices and sand blasting devices. The V-shaped supports, the pipe rotation driving devices and the sand blasting devices are arranged as two groups to formtwo sand blasting stations, and sand blasting operation can be carried out on two steel pipes at the same time; the sand blasting devices can adjust the positions of spray guns according to the pipediameters of the steel pipes, and L-shaped rocker arms for mounting the spray guns do reciprocating swinging motion under the driving of air cylinders and are matched with the rotation of the steel pipes to evenly spray grinding materials to the inner walls of the steel pipes; the two spray guns are respectively connected with two sand blasting tanks, when one of the spray guns is used for carrying out sand blasting operation, the sand blasting tank connected with the other spray gun is used for recycling the grinding materials, and the two spray guns work alternately, so that the sand blasting operation is carried out uninterruptedly. The automatic sand blasting machine is high in automation degree, simple and reasonable in structure, continuous and compact in sand blasting process, highin efficiency, and capable of achieving sand blasting treatment of the steel pipes with various pipe diameters.

Description

technical field [0001] The invention relates to the technical field of rust removal by sandblasting, and more precisely relates to an automatic sandblasting machine for the inner wall of a pipeline. Background technique [0002] In modern energy construction and urban municipal infrastructure construction, there are more and more pipeline construction projects. In order to ensure the safe, stable and long-term operation of these pipelines, some technical problems need to be solved. Pipeline anticorrosion is one of these technical problems important aspect. Among the anti-corrosion measures of pipelines, coating anti-corrosion is the most widely used. The key operation of coating construction is to clean and derust the surface of the pipe wall. If the cleaning and derusting are not thorough, the quality of the coating cannot be guaranteed, and the corrosion resistance is also unreliable. At present, the rust removal methods commonly used at home and abroad include pickling,...

AI Technical Summary

Problems solved by technology

The existing sandblasting technology and equipment are not highly automated, and most of the sandblasting in the workshop is manual work, the working environment is poor, the work intensity is high, and the dust and flying sand particles are extremely harmful to the human body and the environment.

The automatic sandblasting equipment mostly drives the spray gun and the steel pipe to move relative to each other through a moving trolley or traction device, so that the spray gun enters the steel pipe to complete the sandblasting operation. The equipment investment is large and the floor area is large. burden

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