| 摘要 |
FIELD: agricultural engineering. SUBSTANCE: pneumatic system has pneumatic separating and air supplying channels for primary and secondary cleaning processes, settling chambers, diametral fan with delivery pipe connected with primary cleaning air supplying channel, air cleaner, grain mixture charging device, fraction discharge device and mechanisms for regulating air speed rate in pneumatic separating channels and for regulating air flow rate in air supplying channels. Regulating mechanisms are formed as throttle valves coupled one with the other through regulated tie-rods. EFFECT: increased efficiency, simplified construction and reduced discharge of dust-laden air in zones adjacent to pneumatic system exit end. |
