RESEARCH OF A FLEXIBLE SCREW CONVEYOR FOR DISPOSAL OF AGRICULTURAL LAND DAMAGED BY MILITARY ACTIONS

The article examines the damage and destruction of the fertile soil layer because of military operations, in particular the detonation of various types of explosive objects, and the level of contamination of agricultural soils with heavy metals and other harmful substances is studied. A method of restoring the surface of damaged lands due to bombing is proposed, which involves first cleaning the sinkholes from damaged and contaminated soil with heavy metals and other dangerous substances. If a dangerous concentration of heavy metals and other dangerous substances is detected on the surface of the funnel, then the removed contaminated layer of soil must be disposed of. During disposal of the removed contaminated soil layer, it is proposed to use a flexible screw conveyor with a sectional screw working body. The structural scheme of the experimental installation with the attachment system of the machine-tractor unit and a flexible screw conveyor is shown. The axial speed and power of transporting damaged and contaminated soil by the sectional working body of the screw conveyor along the curved route were determined. The calculation showed that the angular velocities of the adjacent sections are almost the same. This study draws attention to the importance of soil condition monitoring after restoration works. Forecasting the possible environmental consequences of using the proposed methods is an important aspect to prevent further pollution. In addition, the results of the experiments can serve as a basis for the development of new cleaning technologies adapted to specific conditions. It is also important to take into account the impact of land restoration on the local ecosystem and agricultural practices, which can positively affect the restoration of soil fertility.