Rust-cleaning shot blasting machine

Abstract

The invention belongs to the field of derusting equipment, and in particular relates to a derusting shot blasting machine, which includes a derusting working part, a projectile sorting part and a projectile transmission part; through the projectile sorting part, the sieve plate and the waste collecting plate are tilted downwards, and gravity is used to The function realizes the sorting of projectiles and the efficient separation of rust residues, and the light dust generated in the rust removal process is quickly removed by the dust removal mechanism, and is dissolved by the absorption liquid and filtered twice by the dust removal net to remove dust, and the dust removal effect is good; the rust removal method of the present invention The shot blasting machine has simple structure, low cost, high working efficiency, low pollution and low energy consumption, and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the field of derusting equipment, in particular to a derusting shot blasting machine. Background technique [0002] Ferrous metals are prone to rust when placed outdoors or in the open air, which not only affects the appearance quality, but also affects the normal progress of painting, bonding and other processes. If it is not handled in time, it will cause scrapping of materials and unnecessary economic losses. Traditional methods often use chemical methods to remove rust, using strong acid to chemically react with rust and metal oxides to generate soluble salts, so as to achieve the purpose of rust removal. At the same time as rust removal, the acid can react with the base metal to release hydrogen. Hydrogen can generate pressure on rust and insoluble scale, which is beneficial to their peeling and reduction of high-valent iron, and accelerates the pickling process, but the traditional acid treatment method also has obvious d...

AI Technical Summary

Problems solved by technology

[0002] Ferrous metals are prone to rust when placed outdoors or in the open air, which not only affects the appearance quality, but also affects the normal progress of painting, bonding and other processes. If it is not handled in time, it will cause scrapping of materials and unnecessary economic losses

Traditional methods often use chemical methods to remove rust, using strong acid to chemically react with rust and metal oxides to generate soluble salts, so as to achieve the purpose of rust removal. At the same time as rust removal, the acid can react with the base metal to release hydrogen. Hydrogen can generate pressure on rust and insoluble scale, which is beneficial to their peeling and reduction of high-valent iron, and accelerates the pickling process, but the traditional acid treatment method also has obvious defects: a large amount of hydrogen gas in the process The generation of hydrogen embrittlement will cause the steel to produce hydrogen embrittlement, which will cause the mechanical properties of the metal to decline and affect the strength of the steel itself; at the same time, it is easy to form acid mist, which will affect the health of the operator and corrode the surrounding equipment and environment; the consumption of acid is also large , increase the cost of treatment; this kind of acid will cause excessive corrosion of steel

In addition, the residues produced in large quantities need to be discharged frequently, which not only seriously corrodes industrial pipelines, but also pollutes the soil and the environment.

[0003] Another method of rust removal is to use a shot blasting machine, which uses the high-speed projectiles thrown by the shot blasting machine to clean the rust on the metal surface; Loss, the size of the projectile is different, which affects the surface rust removal effect, and the rust residue produced by rust removal is mixed with the projectile, which is not easy to separate

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