Sand blasting device for processing inner wall surface of pipeline

Abstract

The invention discloses a sand blasting device for processing the inner wall surface of a pipeline. The device is characterized in that one end of a travelling trolley is equipped with a driving assembly which provides a driving force to the travelling trolley, and while the other end of the travelling trolley is equipped with a plurality of blasting gun racks for fixing a blasting gun assembly; the blasting gun assembly comprises a blasting gun rod which is erected on a plurality of blasting gun supporting mechanisms, and a blasting gun head which is connected with one end of the blasting gun rod; an inner wall sand blaster is arranged at the end part of the blasting gun head; track wheel sets are arranged at the bottom parts of the spraying gun supporting mechanisms and matched with a track system arranged in the pipeline. According to the device, the travelling trolley drives a blasting gun erected on the blasting gun supporting mechanisms on the track system, materials in a sand blasting tank are uniformly blasted on the inner wall of the pipeline through the inner wall sand blaster arranged on the blasting gun head, and therefore, the rust on the surface can be effectively removed. The device is low in dust removal cost, stable in quality, environmentally friendly, and energy saving.

Description

technical field [0001] The invention relates to the technical processing field of sand blasting, in particular to a sand blasting device used for surface treatment of the inner wall of a pipeline. Background technique [0002] The principle of sandblasting and shot peening surface treatment is to spray abrasives onto the surface of the workpiece for impact grinding, remove impurities, variegated colors and oxide layers on the surface, and at the same time roughen the surface of the medium to increase the surface area, which can improve the coating. Adhesion makes the coating have the strongest acid and alkali resistance, improves the coating quality, and at the same time reduces the residual stress on the surface of the substrate, improves the surface hardness of the substrate and meets the requirements of surface decoration. Industrial and civil liquids and gases are mainly transported by metal pipelines. Because the corrosiveness of liquids and gases corrodes the inner wal...

AI Technical Summary

Problems solved by technology

The use of chemical pickling method not only has high processing cost, unstable rust removal quality, serious pollution, harsh production environment, and great health hazards to operators. At the same time, the surface roughness required for coating anti-corrosion protection layer cannot be formed after rust removal. As a result, the coating quality is affected and the service life of the pipeline is reduced

The manual workload and labor intensity of the mechanical cleaning method are too large, and the mechanical cleaning method is not suitable for the inner diameter of the small pipe.

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