SU84813A1 - Mobile grain cleaning device - Google Patents

Description

The known mobile grain cleaning devices, which use rolling sieve mills, brush mechanisms for cleaning the sieve surfaces and air fans for blowing the processed product with the air flow, do not provide sufficiently thorough cleaning of the grain from impurities.

In the described device for cleaning grain, this disadvantage is eliminated. To purge the grain before it enters the sieve mill and after it leaves the device, it has two air channels connected independently to a common fan.

FIG. 1 shows a cross-section of the device; FIG. 2 - its longitudinal section.

Inside the casing, which is moved by means of wheels 2, is mounted a rocking sieve mill 3, equipped with coping sieves 4, 5 and 5, and seeded sieves 7, 8 and 9.

Grain loading of all sorting screens 4, 5 and 6 occurs one time through feed channels 10, I and 12, located vertically with respect to the screens in a checkerboard pattern. In the feed channels 10, 11 and 12, the grain is fed from the housing 13 having two Russa sieves 14 and 15.

For each sieve, the grain enters in the same quantity through the slots of the distribution grid 16 of the feed bin 17. The flow of grain from the feed bunker / 7 and from the chamber 18 is controlled by the slide distribution grid 16 and the directional valves 19.

A rotating straw collector 20 is placed in the lower compartment of the feed hopper 17. Large impurities taken from the grain of the tooth by the straw collector 20 are discharged into the waste chamber 21.

The brushing mechanism 22 for cleaning the seed screens 7, 8 and 9 is driven into a straight-line reciprocating motion by rods 23, which are positioned on both sides of the device body on both sides.

Sorting sieves 4, 5 and 6 are cleaned with mixers of seed screens, on the upper side of which rubber plates 24 are reinforced.

either 84813-2. Inside the case / in its upper part a fan 25 is mounted, to which two independent air ducts 26 and 27 are connected. Channel 26 serves to blow the grain before it enters the sieve mill 3 and is provided with a jigging chamber 28. Channel 27 serves for the secondary blowing of grain at its exit from the sieve mill 3 and is provided with a sediment chamber 29.

11 p with d L1 o t and 3 samples

A mobile device for cleaning grain with an iridescence of a swinging sieve mill, a current for cleaning the sieve surfaces and a fan for blowing the processed product with air flow, characterized in that, in order to blow the grain before it arrives at the sieve mill and after leaving it, The device has two air drops, connected independently to the fan.