About the article
А.L. YABLONEV, Dr. Sc., D.M. SCHERBAKOVA, Postgraduate
The parameters affecting the efficiency of suction of peat crumb by pneumatic harvesters are listed. Among them are the height of the nozzle above the underlying surface of the deposit and the angle of the nozzle. Since there is very little information and recommendations on the rational values of these parameters, a laboratory experiment was carried out, using a specially created installation to assess the air flow rate, depending on the distance fr om the nozzle, the angle of the nozzle and the height of the nozzle above the underlying surface of the deposit. The results of the experiment are presented. It is shown, that it is impossible to reproduce the zero distance from the nozzle to the underlying surface in practice; therefore, it is recommended to lim it the height of 25 mm, which is equal to the maximum size of the conditioned peat crumb. It is noted, that for more accurate results, it is necessary to carry out the following series of experimental works to assess the parameters of suction of peat chips with specific physical and mechanical characteristics by the nozzle.
peat, pneumatic peat harvester, suction nozzle, air flow velocity, anemometer, peat crumb, height of the nozzle above the underlying surface of the deposit.