LOADING AND DOSING DEVICE OF VACUUM PLANTS Russian patent published in 1998 - IPC

FIELD: vacuum systems. SUBSTANCE: external cone 3, to which concentric cylindrical rings 1 are secured, is fixed to upper cover of cylindrical body inside the latter. Cone-splitter 13, tapered cone 12, inclined circular louver 11, and double-sided cone 10 are secured to lower cover of body made as cone-funnel 6 through thrust plates. Under action of gravitational forces loose material getting into space between cones 3, 13 and 3, 12, as well as between louver 11 and rings 1, is supplied to evacuated working chamber 15 through outlet dosing tube. Air, which is cleaned of admixtures and dust due to filtration through continuously moving material, is sucked off by vacuum pump. EFFECT: higher efficiency of dosing, enhanced reliability of vacuum system. 1 dwg