Working principle and characteristics of dust-free automatic shot blasting machine

Working principle and characteristics of dust-free automatic shot blasting machine
1. Working principle:
    Dust-free shot blasting machine surface cleaning method is an advanced surface cleaning method, which is widely used in casting industry and coating industry. Common foreign continuous shot blasting machines mainly include crawler type, swing drum type, special crawler type and mesh belt Type, roller table type, stepped vibration groove type, etc. It completely abandons the method of compressed air as power, so that the surface cleaning work is more efficient, safer and lower consumption. However, these equipments adopt the operation method of workpiece movement and fixed head, which is bulky and is not suitable for use in bridge deck anti-corrosion construction.
    Dust-free automatic shot blasting machine is a highly efficient shot blasting / sand descaling equipment with unique design. The machine body is compact and flexible, and can continuously walk on the workpiece to remove rust.It is fully automatic and highly efficient.It is suitable for processing large-scale workpieces, such as steel Bridge deck, ship deck, floor, etc.
    Working principle: Use the high-speed rotating head of the shot blasting machine to throw the steel grit or steel shot to the surface of the workpiece at high speed, and remove the oxide layer and rust products on the surface by the impact of the sand shot. The shot blasting machine automatically walks on the workpiece like a car to obtain a continuous and uniform blasting surface.
    Abrasive circulation path: The hopper stores the abrasive → enters the abrasive control valve → enters the pill wheel → the high-speed blasting surface of the workpiece is cleaned → the abrasive rebounds to the sand chamber → the abrasive is sucked back into the hopper, which realizes the automatic recycling of abrasive Reuse.
    Dust movement path: Dust generated on the surface of the workpiece (crushed oxide layer and rust products and crushed products of some abrasives) → is sucked back to the hopper along with the abrasive → the dust is separated by the dust sand separator → enters the dust collector through the suction pipe → Clean air after filtering off dust is discharged into the atmosphere.
2. Working characteristics:
    The working characteristics of the dust-free automatic shot blasting machine: (1) The whole system is composed of several simple mechanisms such as the shot blasting and returning part, the walking part, the dust collector, the controller, etc .; (2) PLC control, the parameters are adjustable, and the walking is adjusted by adjusting The speed and the amount of sand input can achieve the ideal cleaning effect; (3) Flexible operation, forward, backward and turn, continuous work, any part of the large plane can obtain uniform and consistent rust removal quality; (4) Abrasives and dust Automatic recycling treatment, no sand leakage, no pollution to the environment; (5) High construction efficiency, effective width of one shot blasting cleaning up to 500mm.