Compressed air driven grit blasting appts. - has helical gear transporter between grit supply tank and compressed air pipe

摘要

Appts. (1) includes an air pressure line (2), at one end coupled via valve (4) to air compressor (3). The other end of line includes rubber hose (5) and nozzle head (6). Grit (9) is stored in tank (8) which has a filling funnel (16) and valve (17), . The tank has, at the bottom an outlet (10) connected to helical screw transporter pipe (12). Grit from outlet is transported by the helical screw to the pressure line and depending on rotary speed of drive motor (14) delivered in required quantities.