Steel plate pretreatment line shot blasting machine
Steel plate shot blasting machine is a multifunctional steel pretreatment line for cleaning welded structural parts, H steel, section steel, mesh frame and steel plate. The arrangement of the shot blasting machine is in the form of multi-angle, the world's most advanced unit disc blade shot blasting machine is selected, which shoots out a high-speed dense beam of projectiles, striking at various parts of the steel in its original state for three-dimensional cleaning, so that the rust layer, welding slag, oxide skin and its dirt on each surface of the steel quickly fall off, to obtain a certain roughness of the smooth surface, improve the adhesion of the paint film to the steel surface, and improve the steel's resistance to fatigue strength and corrosion resistance of steel, improve the intrinsic quality of steel, and extend its service life.
I. Overview Overview
Steel plate shot blasting machine is a multifunctional steel pretreatment line for cleaning welded structural parts, H steel, section steel, mesh frame and steel plate. The arrangement of the shot blasting machine is multi-angle, the choice of the world's most advanced unit disc blade shot blasting machine, throwing a high-speed dense beam of projectiles, striking in various parts of the original state of steel, three-dimensional cleaning, so that the steel surface rust layer, welding slag, oxide and its dirt quickly off, to obtain a certain degree of roughness of the surface, improve the adhesion of the paint film and steel surface, and improve the fatigue strength of steel and corrosion resistance, improve the intrinsic quality of steel, and extend its service life.
II. Structure and working principle
1 Structure
The main functional components of this machine is the cleaning room, indoor conveyor roller conveyor and inlet and outlet conveyor roller conveyor, shot blasting machine, projectile circulation system (including elevator. Separator, longitudinal and transverse spiral conveyor and projectile recovery mechanism and supply pipe) blowing mechanism, dust removal, electrical control and other components
2. Working principle
This machine is a silver channel type continuous feeding high function shot blasting equipment, in the cleaning process by the electrically controlled adjustable speed conveyor roller conveyor will steel structure or steel into the cleaning machine chamber body projection area, its circumference of each surface from different coordinates of the orientation of the intensive projectile striking and grinding, so that its oxidation, rust layer and its dirt quickly off, the steel surface to obtain a certain degree of roughness of the surface, in the cleaning room Both sides of the import and export roller conveyor loading and unloading workpiece. Falling into the steel above the projectile and rust dust by the blowing device blowing, scattering down the mixture of pellets and dust by the recovery screw conveyor to the chamber funnel, vertical and horizontal screw conveyor gathered in the lower part of the hoist, and then lifted to the upper part of the machine separator, after the separation of pure pellets fall into the separator hopper for shot blasting cycle. Shot blasting cleanup in the generation of sitting, sent to the dust removal system by the extraction pipe, clean treatment of the net air emissions to the atmosphere, particulate dust is captured and collected.
III. Overview
Steel pretreatment equipment is used for pretreatment of various types of plates and profiles, thus playing a role in improving the quality and added value of steel produced by steel mills. In the construction of ships, drilling rigs and other offshore projects, the steel dimensions are even more demanding, and this poses a considerable challenge for various surface treatments, as a large number of steel plates and special profiles need to be cleaned, cut, welded and painted before assembly. Surface treatment as a procedure is done on the pretreatment line, which is a process that combines shot blasting, priming and drying. After this process, the steel plates and profiles are blast cleaned and, at the same time, a temporary anti-corrosion coating can be applied. Of course, in addition to the external conveyors, the pretreatment line also includes a preheating furnace, a continuous pass-through blast machine, a paint booth and a mobile furnace grate with baking channels. In the steel loading area, the plant offers a cross-conveyor system, which allows for uninterrupted loading and unloading of the material and effectively avoids collision damage to the material.