公开(公告)号：US20170334036A1

公开(公告)日：2017-11-23

申请号：US15599023

申请日：2017-05-18

Applicant: Graco Minnesota Inc.

Inventor： John W. Turner ,  Nicholas K. Studt ,  Bryce J. Gapinski ,  Brandon K. Falkenberg

IPC: B24C7/00

CPC classification number: B24C7/0015 ,  B24C7/0007 ,  B24C7/0023

Abstract: A blasting system includes a pressure vessel, water pump, blast circuit, motor, orifice valve, and controller. The pressure vessel is configured to contain a pressurized blast media slurry. The water pump pumps water from a water supply to the pressure vessel. The blast circuit delivers the pressurized blast media slurry received from the pressure vessel. The motor drives the water pump. The orifice valve regulates a rate of flow of the blast media slurry to the blast circuit. The controller provides control commands to the water pump or the orifice valve based on a blast media flow rate set point and at least one sensed operating parameter.