About the article
А.L. YABLONEV, Dr. Sc., D.M. SCHERBAKOVA, Postgraduate
The efficiency of suction of milling chips by pneumatic peat harvesters is largely determined by the height and angle of installation of the suction nozzle in relation to the underlying surface. However, the issue of increasing the efficiency of the machine with a constant suction speed is not limited to this. To increase the efficiency of the pneumatic harvester, it is proposed to equip the suction nozzles with mouthpieces. The study has proved, that the maximum efficiency, according to the criterion of the length of the axis of the active zone of the suction flare, has a nozzle, installed at an angle of 30…35°, equipped with a mouthpiece with an activation angle of 50…55°. Comparison of the efficiency of the nozzle without a mouthpiece and with a mouthpiece showed that the proposed mouthpiece is able to more, than double the length of the axis of the active zone of the suction plume, and, consequently, to increase the efficiency of the machine.
peat, pneumatic peat harvester, suction nozzle, air speed, anemometer, peat crumb, mouthpiece, spread activation angle, spread angle of attack.