High-pressure spray gun with conveying rod

Abstract

The invention relates to the technical field of rust removal equipment and rust removal methods, in particular to a high-pressure spray gun rust removal device and a rust removal method using the high-pressure spray gun rust removal device. The high-pressure spray gun rust removal device is connected with a high-pressure spray gun, a water pump and a booster pump; the booster pump is pressurized to 30 MPa, fine sand is prepared, and the fine sand is sucked into a spray gun by negative pressure formed by water flow at the front end of the high-pressure spray gun to form water sand to spray out;and the cleaned metal surface is impacted and ground by using high-energy water sand jet, the corrosion layer, the scale formation layer and other multi-position layers on the metal surface are in porous distribution, once the scale formation layer is permeated, the high-pressure water sand jet is inserted between the scale formation layer and the metal base material in a wedge shape, and when the impact energy is larger than the adhesion limit strength of the scale formation layer and the base material, the corrosion layer and scale formation layer are removed. The rust removal method has the advantages that the high-pressure water jet is good in safety adaptability and can be applied to flammable and explosive places, the high-pressure water jet is high in rust removal safety performance, and no harm is caused to operators. The rust removal process is free of any life influence on surrounding people in the rust removal process.

Description

technical field [0001] The invention relates to the technical field of derusting equipment and derusting methods, in particular to a high-pressure spray gun with a transmission rod. Background technique [0002] LNG storage tanks are prone to rust. At present, manual derusting or electric grinding wheels are generally used for anti-corrosion and derusting. The production device area of ​​LNG storage tanks is a flammable and explosive area. No matter whether manual derusting or electric derusting is used, there will be sparks. In order to ensure safety, rust removal and anticorrosion work cannot be carried out at many points. Even areas where rust removal work can be carried out require a lot of safety work in the early stage before construction, and the construction progress and construction quality cannot be guaranteed. Contents of the invention [0003] The purpose of the present invention is to provide a high-pressure spray gun with a transmission rod, which can be cons...

AI Technical Summary

Problems solved by technology

[0002] LNG storage tanks are prone to rust. At present, manual derusting or electric grinding wheels are generally used for anti-corrosion and derusting. The production device area of ​​LNG storage tanks is a flammable and explosive area. No matter whether manual derusting or electric derusting is used, there will be sparks. In order to ensure safety, rust removal and anti-corrosion work cannot be carried out at many points. Even areas where rust removal work can be carried out require a lot of safety work in the early stage before construction, and the construction progress and construction quality cannot be guaranteed.

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