Seed from harvesting machines or hand collections will include a mix of stems, leaves, chaff, appendages, empty glumes, and seeds of various sizes and quality.  The extraneous materials must be removed to insure a quality product and to allow uniform dispensing through seeding equipment. 

Application of Basic Seed Cleaning Screen
Pre-cleaning is the rapid removal of excessive, extraneous materials by pre-cleaner, which is used to remove large trash, stems, leaves, and associated chaff prior to basic cleaning. 


Working Principle of Basic Seed Cleaning Screen
1.  Grain flows into dedusting bin from silo by a bucket elevator;
2.  A fan sucks out the relatively light sundries like dust, stive, rice chaff and bran;
3.  Then grain flows onto a flat screen that is set at a slight incline and vibrated mechanically;
4.  Large trash is removed as the seed fall through the holes in the first screen and onto a second screen;
5.  The second screen traps the seeds and moves them to a hopper as smaller trash falls through the holes and discharged from another hopper.

DZL-10 Basic Seed Cleaning Screen Parameters:

Model	Dimension	Fan power and rotate speed	Motor Power	Capacity
DZL-10	3100*1450*2750mm	1.5kw/2900round/minute	1.5-4grade	10T/hour

DZL-15 Basic Seed Cleaning Screen Parameters:

Model	Dimension	Fan power and rotate speed	Motor Power	Capacity
DZL-15	3040*1120*2300mm	1.5kw/2900round/minute	1.5-6grade	15-20T/h