Surface applied abrasive cleaning apparatus and method

摘要

A rotor assembly is provided for blast processing. The rotor assembly includes multiple lofting elements to create a vortex to loft particulate material to be used to process a target, and multiple elements to project the particulate material toward the target. The rotor assembly is enclosed within an operating chamber that has a target area into which the particulate material is projected to strike the target. There may further be angled deflectors at the opening to direct particulate material back toward the rotor assembly to use the material for further processing. Certain components are easily adjustable for different sizes and shapes of target. The action of the rotor assembly enables the use of up to 100% pure grit for entire cleaning processes, and provides single pass hook profile on any common material surface.

主权项

1. An apparatus comprising:
a rotor assembly having a base and a top, the rotor assembly including:
a shaft, extending from the base of the rotor assembly to the top of the rotor assembly, that rotates about a longitudinal axis of the apparatus;a first lofting deflector and a second lofting deflector coupled to the shaft, each having a face pointing to the top of the rotor assembly, in a direction substantially parallel to the longitudinal axis, the first and second lofting deflectors to create a vortex of air along the longitudinal axis as the shaft rotates, the vortex to move particulate material along the longitudinal axis in the direction of the top of the rotor assembly, wherein the first lofting deflector is angularly offset in a circumferential direction from the second lofting deflector and axially offset along the shaft in a longitudinal direction from the second lofting deflector; anda first impeller and a second impeller coupled to the shaft, each impeller adjacent to a corresponding one of the first lofting deflector and the second lofting deflector, each extending radially outward from the shaft, each having a face pointing in the direction of rotation of the shaft, each impeller to project the particulate material away from the axis; and an operating chamber having walls to enclose the rotor assembly along the longitudinal axis, and a bottom portion proximate the base of the rotor assembly and a top portions proximate the top of the rotor assembly to determine a vertical size of the operating chamber, the operating chamber having a target area opening in the walls through which the projected particulate material is directed toward a target.