NOZZLE FOR VACUUMING AND ASPIRATION SYSTEMS Russian patent published in 2020 - IPC B07B7/00 B01D49/00 

FIELD: ventilation.

SUBSTANCE: disclosed invention relates to cleaning air or gas, as well as their mixtures from mechanical impurities, particularly to trapping and cleaning aspiration air. Nozzle for systems of evacuation and aspiration contains air pipeline, one end of which is made with possibility of its connection with receiving chamber of aspiration unit, and on the other one air receivers are made. Air duct cross-section area and sum of cross-section areas of air receivers are approximately equal to 1:1. Cross-sections of air receivers have different cross-sectional areas to collect air particles of different fractions. Air receivers are detachable. Air receivers are flexible and can change their spatial position. Air pipeline is made cylindrical. Air receivers are arranged at an angle to air duct axis. Air intake with cross-section of larger diameter is located in central part of nozzle, and air receivers with smaller diameters are located in peripheral area of nozzle. Air receivers are equipped with cone-shaped tips.

EFFECT: technical result is higher efficiency of particles removal from working zone.

8 cl, 14 dwg, 3 tbl