Recovery-free inner wall shot blasting machine for nodular cast iron pipe

Abstract

The invention discloses a recovery-free inner wall shot blasting machine for a nodular cast iron pipe, belongs to the field of metal processing, and can realize that shots are sealed in a hollow outer barrel by improving a traditional shot blasting machine and abandoning a traditional blade casting or crawler belt casting mode, by collision between collision bulges rotating at a high speed and the shots, the shots are endowed with a certain initial speed to achieve a throwing effect, then a rebound assisting film is driven to collide with the pipe wall, shot blasting operation is achieved, the situation that when a traditional shot blasting machine carries out shot blasting operation on the interior of a pipeline, shot blasting and recycling are needed at the same time, and blockage is extremely prone to occurring is avoided, the shot blasting cost is effectively reduced, and meanwhile, in the presence of the rebound assisting film, residues falling off due to impact of the shots cannot fall into the hollow outer barrel, the later-stage cleaning cost of the equipment is effectively reduced, the situation of excessive collision is effectively avoided through mutual cooperation between a centrifugal shot blasting barrel and a hollow supporting column, and the service life of the pipeline is prolonged.

Description

technical field [0001] The invention relates to the field of metal processing, and more specifically relates to a recovery-free inner wall shot blasting machine for ductile iron pipes. Background technique [0002] Ductile cast iron is a high-strength cast iron material developed in the 1950s. Its comprehensive performance is close to that of steel. It is based on its excellent performance that it has been successfully used to cast some complex stress, strength, toughness, and wear resistance. Parts with high performance requirements. [0003] Ductile iron pipes manufactured using ductile iron technology are mainly called centrifugal ductile iron pipes, which have the essence of iron and the performance of steel, excellent anti-corrosion performance, good ductility, good sealing effect, easy installation, and are mainly used in municipal, industrial and mining enterprises Water supply, gas transmission, oil transportation, etc. are the first choice for water supply pipes, w...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems existing in the prior art, the object of the present invention is to provide a recycling-free inner wall shot blasting machine for ductile iron pipes, which can improve the traditional shot blasting machine and abandon the traditional blade shot or crawler shot blasting method. , the projectile is sealed in the hollow outer barrel, through the collision between the high-speed rotating collision protrusion and the projectile, the projectile is given a certain initial velocity to achieve the projectile effect, and then the rebound-assisted film is driven to collide with the tube wall to achieve shot blasting operation, avoiding the traditional shot blasting machine for blasting the inside of the pipeline, which needs to be blasted and recovered at the same time, which is very prone to blockage and effectively reduces the cost of shot blasting. The residues falling off from the impact of the projectile will not fall into the hollow outer barrel, which effectively reduces the post-cleaning cost of the equipment

Images