Authors: A.L. Yablonev, D.M. Shcherbakova

Title of the article: Research and determination of rational parameters of the installation of the suction nozzle of a pneumatic peat harvester

Year: 2022, Issue: 2, Pages: 22-30

Branch of knowledge: 05.05.06 Mining machines

Index UDK: 658.5

DOI: 10.26730/1816-4528-2022-2-22-30

Abstract: The geometrical parameters of the location of the suction nozzle of a peat pneumatic harvester and the aerodynamic properties of milled peat particles affect the actual length of the axis of the active zone of the suction flare, which ultimately determines the productivity and efficiency of the machine. Since there are no precise and substantiated recommendations on the parameters of the installation of the suction nozzles, by agreement with LLC Pindstrup, this study was carried out, the purpose of which is to determine the rational angle of installation of the suction nozzle and the height of its location above the underlying surface of the peat deposit, when sucking up peat crumb -th aerodynamic characteristic. The experimental study was carried out in laboratory conditions using a specially designed and created experimental installation. The results of the study showed that the soaring speed of peat particles of the transitional and high type is, respectively, 14.41 and 10.78 m / s, the rational parameters of the nozzle setup are an angle of 30-35 °, the height of the nozzle above the underlying surface of the deposit is 25 mm. The results of the study were transferred to LLC Pindstrup for adjusting the parameters of the installation of suction nozzles on peat pneumatic harvesters KTT-2. The obtained experimental data can also be used under other conditions of pneumatic peat harvesting, using the method of large-scale modeling.

Key words: peat peat particles suction nozzle core axis nozzle installation angle pneumatic method peat harvesting machine aerodynamic properties

Receiving date: 30.09.2021

Approval date: 20.10.2021

Publication date: 15.01.2022

CITE DOWNLOAD