GRAIN CLEANING MACHINE Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, grain cleaning and sorting equipment.

SUBSTANCE: grain cleaning machine has air system and sieve shoe mounted above air system. Air system has pneumatic separating channel, separating chamber and settling chamber. Fan is connected to settling chamber and is equipped with air flow rate regulator arranged in discharge branch pipe. Common wall of adjacent pneumatic separating channel and separating chamber is equipped with height regulator to provide for separation of basic grain material into heavy and average fractions of approximately equal weight without changing air flow speed in pneumatic separating channel.

EFFECT: increased efficiency by preventing drawing away of full-value grain into settling chamber and uniform charging of seeding sieves.

1 dwg