Sublimation Drying of Fish Products in the Arctic in the Production of Feed for Farm Animals

Introduction. The article considers biological resources of the Arctic, which is expedient to use in the production of fish meal for feeding farm animals. The aim of the research is to prove the usefulness of a continuously operating two-chamber line for sublimation drying of fish products using natural freezing of fish catch and a cheap source of thermal energy for drying: ethane, propane, butane (waste when cleaning natural gas and petroleum products of local enterprises), as well as microwave energy. Materials and Methods. A continuously operating two-chamber sublimation line is proposed, the chambers of which work alternately: one for the process of sublimation drying, and the other for loading and unloading processed products. The natural freezing of fish and thermal energy for the process of sublimation (drying) from the burning of waste gas are used whenever possible. When there is cheap electricity, it is advisable to use microwave energy for drying that makes it possible to shorten the drying cycle, ensure uniformity and simultaneity of drying the material up to 3–5% humidity without rearranging the trays along the height of the cart. Results. We propose the construction of a two-chamber sublimation line for large lump products and a sublimation unit based on microwave energy, which allows regulating the sublimation drying temperature within specified limits. Discussion and Conclusion. The presented design solutions of a large lump product sublimation drying line and sublimation unit using microwave energy are necessary for designing equipment based on digital technology

The research of remote earthquakes impact on the intensity of geomechanical processes in burst-hazardous rock massif

Brief summary of works on the detection of pendulum waves intensifying geomechanical processes in rock massif, with the application of high-sensitivity laser measurements, is represented in the article. Peculiarities and technical characteristics of laser deformograph applied as part of comprehensive geodynamic monitoring system in the area of “Streltsovskoe” ore field have been taken into consideration. The results of experimental research for the evaluation of remote earthquakes impact on the condition of rock massif of “Streltsovskoe” ore field, registration of remote earthquakes and their forerunners are given

The research of remote earthquakes impact on the intensity of geomechanical processes in burst-hazardous rock massif

Brief summary of works on the detection of pendulum waves intensifying geomechanical processes in rock massif, with the application of high-sensitivity laser measurements, is represented in the article. Peculiarities and technical characteristics of laser deformograph applied as part of comprehensive geodynamic monitoring system in the area of “Streltsovskoe” ore field have been taken into consideration. The results of experimental research for the evaluation of remote earthquakes impact on the condition of rock massif of “Streltsovskoe” ore field, registration of remote earthquakes and their forerunners are given

Forecast for the formation of zones of high rock pressure in the conditions of mining ore deposits in a combined way

The prospect of mining the majority of deposits in the Far Eastern region is associated with the need to switch from the open-pit to the underground method of developing deep-lying ore bodies. Ensuring the safest conditions for the combined development of the field is possible only after comprehensive studies have been carried out that make it possible to establish the peculiarities of the formation of the stress state in the rock mass taking into account the influence of various natural and technogenic factors. An assessment of the stability of structural elements of the proposed development systems at the deposits will allow identifying potentially impact hazardous areas and developing measures to maintain and protect mine workings, which will reduce the risk of dynamic manifestations of rock pressure