| 摘要 |
The invention can be used in various branches of industry in which the processing of bulk materials, in particular grain, is required. A separator comprises an air blower; a separation chamber with two inlets and two outlets; a loading hopper; at least one discharge channel; a return air duct with a series of curved portions; and at least one residue collection chamber. The sequentially connected air blower, separation chamber and return air duct form a recirculation channel. The return air duct comprises at least one horizontally flared portion, to which one of the aforementioned residue collection chambers is connected via an opening in the lower wall of the air duct. The separator is designed such that air can be injected into the separation chamber via the discharge channels. The first horizontally flared portion in the direction of flow has a downwardly curved lower wall. An opening into a residue collection chamber is situated within the region of a smooth curve from the flared portion to the first portion having an upward curve. The opening into the residue collection chamber is the only opening in the return air duct which constantly connects the return air duct to the external environment. The technical result is improved purification of fractions and better operational and environmental characteristics. |
