РАЗРАБОТКА ЛАБОРАТОРНОЙ УСТАНОВКИ ДЛЯ СУШКИ ЛИЧИНОК МУХИ HERMETIA ILLUCENS В ВИБРООЖИЖЕННОМ СЛОЕ

Abstract

One of the modern and promising areas for the disposal of food waste and agricultural waste from plant and animal origin is the use of larvae of Black stratiomys flies (Hermetia illucens) with the subsequent receipt of them high-quality natural protein feed for livestock, poultry, aquaculture, etc. Use larvae in live frozen and dried state. Drying allows you to increase the shelf life and get a more concentrated feed. However, most drying methods are characterized by high energy intensity of the process with varying degrees of preservation of the properties of the feedstock. One of the methods for drying larvae is drying in a vibro-fluidized bed in an infrared field generated by a gas mixture. To implement this method, a laboratory setup has been developed. A closed perforated container with larvae, which performs vertical vibrations, is installed in the working chamber. The oscillation frequency is selected depending on the degree of drying. At the bottom of the chamber is a gas infrared generator fed by a propane-butane mixture from a cylinder. To create a steady flow, an exhaust fan is installed in the upper part of the working chamber. Temperature control in the upper and lower parts of the working area is carried out by thermocouples. During the experiments, the drying regimes and the rate of moisture evaporation were clarified. The moisture content of the dried material was measured over the entire drying period. The energy consumption for moisture evaporation was controlled. As a result, the energy intensity and productivity of the heat and moisture transfer process are determined. The larvae of Black stratiomys flies dried by this method have a dense texture, a homogeneous structure, and a tan color.