METHOD OF SANDBLASTING USING MOIST SAND, AND SANDBLASTING APPARATUS FOR CARRYING OUT SUCH METHOD

摘要

TITLE A METHOD OF SANDBLASTING USING MOIST SAND, AND SANDBLASTING APPARATUS FOR CARRYING OUT SUCH METHOD INVENTOR Josef KEIZERS A sandblasting apparatus incorporating a novel blasting nozzle for moist sand is connected to a pressure vessel via hose and the blasting nozzle is connected to an additional or auxiliary propellent line including a propelling or driving nozzle into which the hose for the water and sand mixture opens. This apparatus includes an inlet port for sand water mixture downstream from the propelling nozzle throughwhich the auxiliary propellent flows. In underwater sandblasting application an opening for the propellent through which the propellent can flow out is also provided. The invention also discloses a novel method of sandblasting using moist sand in that water and sand are mixed within a pressure vessel and thereafter delivered to the blasting nozzle under pressure while an auxiliary propellent is supplied within the blasting nozzle.