An apparatus for blasting having a distribution block for receiving a blasting medium, a pressure medium and/or a fluid/liquid medium, said distribution block having an outlet connectable with at least one distributing tube.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving better application of the mixture while minimizing the amount of water required to contain and minimize or eliminate airborne particulate matter such as dust produced during the blasting operation. By more thoroughly mixing the water into the abrasive/water mix, the amount of water required is reduced. The abrasive feed is placed and shaped to optimize spray coverage and minimize abrasive flow into injection space thus mitigating water nozzle clogs. The abrasive flow is shaped as it is released from the metering valve in order to tighten the abrasive flow before it enters into the blast air stream. The shaped and tightened abrasive flow is maintained at the lower portion of the blast air stream. This positions the abrasive flow in optimum placement for spray wetting the abrasive as it flows into and through the nozzle. This also mitigates nozzle clogging by directing most of the abrasive flow away from the water spray nozzle port.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving a more efficient mixture while minimizing the amount of water required to contain and minimize or eliminate airborne particulate matter such as dust produced during the blasting operation. The system supports dry blasting, wet blasting, and water wash down modes and air drying modes. When blasting, by more thoroughly mixing the water into the abrasive/water mix, the amount of water required is reduced. The abrasive feed is placed and shaped to optimize spray coverage and minimize abrasive flow into injection space thus mitigating water nozzle clogs. The water injectors are downstream of the air/abrasive mixing station.

The invention is directed toward a mobile wet-abrasive blasting system used for cleaning, preparing surfaces, removing coatings, and other abrasive blasting applications. The wet abrasive basting system has a blast pot that includes pilot-controlled pneumatics to control the loading, pressurizing, de-pressurizing, and wash down functions. The wet-abrasive blasting system also uses a floating bung in conjunction with a vent mechanism to further automate the pressurizing steps in setting up the system. The wet-abrasive blasting system also uses pilot-controlled pneumatics to decide the blasting function options of just water, just air, or water/abrasive mix and air. Wet-abrasive blasting systems mix an abrasive media with water and convey the mix to meet compressed air and direct through a blast hose and nozzle.

An abrasive blasting system has an abrasive container or pot, preferably with a downwardly conically shaped interior bottom surface. A slurry delivery tube is positioned within the pot, with an open bottom end positioned at an operative distance above the bottom of the pot. The slurry delivery tube runs vertically upward and exits the pot, ultimately running to a hose and nozzle. With an abrasive slurry of solid particulate abrasive media and water inside the pot, air pressure is applied within the pot. When a relatively lower pressure is created in the slurry delivery tube, the resulting pressure differential moves the slurry downward within the pot, then upward through the slurry delivery tube, through the hose and ultimately to the nozzle, where it is directed by an operator onto a workpiece. The system is especially useful when using very fine abrasive material.

An abrasive fluid jet cutting device is disclosed comprising a rotating joint that includes a first path for abrasive and a second path for fluid, a mixing chamber where the first and second paths meet, a first expanding volume arranged above the first path to accumulate abrasive, and a second expanding volume arranged below the first path to accumulate abrasive between the first volume and the mixing chamber, in which the second volume forms a barrier against the return flow of humidity along the first path.

Multi-jet abrasive head for cleaning/removing material surfaces and splitting/cutting materials by a liquid beam enriched with solid abrasive particles with a uniform velocity and density profile allowing the cutting power to be increased with more efficient cutting beam usage.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving better application of the mixture while minimizing the amount of water required to contain and minimize or eliminate airborne particulate matter such as dust produced during the blasting operation. By more thoroughly mixing the water into the abrasive/water mix, the amount of water required is reduced. The abrasive feed is placed and shaped to optimize spray coverage and minimize abrasive flow into injection space thus mitigating water nozzle clogs. The abrasive flow is shaped as it is released from the metering valve in order to tighten the abrasive flow before it enters into the blast air stream. The shaped and tightened abrasive flow is maintained at the lower portion of the blast air stream. This positions the abrasive flow in optimum placement for spray wetting the abrasive as it flows into and through the nozzle. This also mitigates nozzle clogging by directing most of the abrasive flow away from the water spray nozzle port.

Fluid jet cutting systems, components and related methods for generating relatively low load abrasive fluid jets that are particularly well suited for cutting fragile, brittle or otherwise sensitive materials are provided. An example method includes supplying fluid at an operating pressure of at least 60,000 psi to an orifice having a circular cross-sectional profile with a diameter that is less than or equal to 0.010 inches to create a fluid jet that leaves a fluid jet cutting head through a jet passageway having a circular cross-sectional profile with a diameter that is less than or equal to 0.015 inches.

A wet media blasting system with a water injection system that provides more uniform distribution of the water, air and media components for achieving better application of the mixture while minimizing the amount of water required to contain and minimize or eliminate airborne particulate matter such as dust produced during the blasting operation. By more thoroughly mixing the water into the abrasive/water mix, the amount of water required is reduced. The abrasive feed is placed and shaped to optimize spray coverage and minimize abrasive flow into injection space thus mitigating water nozzle clogs. The abrasive flow is shaped as it is released from the metering valve in order to tighten the abrasive flow before it enters into the blast air stream. The shaped and tightened abrasive flow is maintained at the lower portion of the blast air stream. This positions the abrasive flow in optimum placement for spray wetting the abrasive as it flows into and through the nozzle. This also mitigates nozzle clogging by directing most of the abrasive flow away from the water spray nozzle port.