Sand blasting nozzle structural classification

Straight bore nozzle narrowing part only of its internal structure and the straight section, the structure is simple, easy to make. This form can not overcome the nozzle inlet end vortex exists, the pressure loss is large, the exit velocity of the abrasive under pressure less than 0.7MPa 100m / s. Generally used for small sandblasting equipment.

Venturi nozzle venturi nozzle contraction of the structure is divided into sections, straight section and diffuser of three parts, difficult to produce. Venturi nozzle aerodynamic performance than straight bore nozzle, or no longer significantly improved vortex, the pressure loss is greatly reduced, at the same pressure conditions, the exit velocity of the abrasive than doubled, the efficiency of the nozzle hole than the straight increased by 15% -40% abrasive consumption reduced by 20%.

Two spray nozzles Venturi nozzles constituting the front and back, as the role of high-speed airflow to produce a large negative pressure, the surrounding air into the nozzle, the air is ejected in the amount of air volume. Dual Venturi nozzle blasting area than standard venturi nozzle blasting area 35%, the exit velocity blast media about reduced. This nozzle is usually used for large area surface treatment of moderate intensity.

Angle of the nozzle flow direction of movement of the abrasive changes, can be used to clean bridges, towers and other steel truss, blue hair on the back, the inner surface of the pipe, so that these parts can be difficult to clean the abrasive direct blow, to clean purposes. Angle of the nozzle holes 1, 2, 3, etc., the hole centerline axis of the nozzle angle is 45 degrees, 90 degrees, 135 degrees, to meet different construction applications, the need for cleaning workpieces of different shapes.