MODULE-ATTACHMENT TO AIR SEEDER FOR TREATING SEEDS WITH PROTECTIVE-STIMULATING PREPARATIONS Russian patent published in 2018 - IPC A01C1/00 

FIELD: agriculture; engineering.

SUBSTANCE: module-attachment to the air seeder for treating seeds with protective-stimulating preparations contains a container for working fluid 1, metering pump 2, mixing chamber 3 with sprayer 4 installed in the pneumatic seed tube, collection of excess working fluid 5, discharge pipe 6 and helical surface 7. Latter is installed at the entrance to the mixing chamber and is made with the number of turns from 1 to 3. Diameter of screw surface 7 is equal to the inner diameter of mixing chamber 3, and the pitch of the turns is 1.5…3 times the diameter of the mixing chamber.

EFFECT: invention provides a uniform distribution of the drug in the mixing chamber and, consequently, its uniform and complete application to the seeds; in addition, the turbulence of the air flow minimizes the pressure loss during the passage of the seeds of the mixing chamber and reduces the possibility of its clogging.

1 cl, 2 dwg