Pospelova I.G., Dorodov P.V., Vozmishchev I.V., Titov I.V., Netesov S.V., Sidorov A.D.

Methodology for studying the disinfection of soil mixtures in a thin layer on a conveyor using IR radiation

Growing greens is always accompanied by the development of pests and diseases, the fight against which is an integral part of obtaining a high and high-quality harvest. Heat treatment is one of the best ways to combat plant diseases and pests. Allows you to quickly create the necessary sterile conditions without the use of chemicals. For heat treatment, a device is being developed for disinfecting soil and substrate in a thin layer using IR radiation on a conveyor belt. The prepared soil mixture from the supply hopper falls onto the conveyor belt in a thin layer. An IR emitter with adjustable power within the range of 4...10 kW is installed above the conveyor belt. The movement of the conveyor belt should ensure that the surface of the soil mixture is heated to 100 °C. This is controlled by a temperature sensor, which sends a signal via a programmable relay to the conveyor motor and regulates its movement. The disinfection process makes it possible to achieve high energy efficiency through software regulation, taking into account optimal modes and control of the processing temperature.

Keywords: DISINFECTION, IR RADIATION, HEATING, SURFACE, PROGRAM CONTROL, SOIL MIXTURE, DISEASES, PESTS