GRAIN CLEANING MACHINE Russian patent published in 2001 - IPC

FIELD: agricultural production, flour milling and feed mill industry. SUBSTANCE: machine has pneumatic separating channel, feeder with guiding grid, device adapted for supplying of air into zone below guiding grid and communicated with pneumatic separating channel in zone below the portion where cut-off flour is discharged from guiding grid, settling chamber communicated with pneumatic separating channel outlet end, fan, aspiration channel for communicating settling chamber via fan with pneumatic separating channel, additional chamber equipped with baffle-type wall and discharge device and arranged between aspiration channel and pneumatic separating channel, grain mixture discharge branch pipe and light fraction discharge device arranged in lower part of settling chamber. Additional chamber is communicated with settling chamber via dust discharge channel and with aspiration chamber via air supply channel. Grain discharge surface is positioned below baffle-type wall. EFFECT: wider operational capabilities and improved quality of grain cleaning. 1 dwg