Research findings on the effect of tubular shredder on the process of water heating in grain molasses plant

Abstract

In Russia, cereals are one of the main components of farm animal feeds and the basis for compound feeds. Grain feeding to animals is traditionally carried out in dry form, having previously subjected it to mechanical processing on crushers, flatteners and granulators. Based on our analysis of scientific sources, it is concluded that today there is an intensive development and implementation of biotechnologies designed to change the chemical composition of grain. One of the products of such bio-processing of grain is molasses which has high carbohydrate content. Grain molasses is produced in special plants. However, as the experience of operating such installations has shown, problems arise with obtaining homogeneous molasses from hard varieties, and therefore additional exposure is necessary to contribute to their destruction. For this purpose, we have proposed using a passive shredder in the form of a cylindrical grate in plants for the preparation of grain molasses. The research goal is to study the influence of the parameters of a tubular shredder on the process of water heating in a grain molasses plant. The research was carried out in the scientific and production laboratory of the Nizhny Novgorod State University of Engineering and Economics. The influence of the diameter of the bypass channel of the molasses plant was determined. The study was carried out by heating 50 liters of water from room temperature to 30°C. During the experiments, the heating time to the required temperature and the electricity consumed were recorded. The choice of the most rational design was carried out according to the criteria of heating speed and specific energy consumption. As a result of the conducted research, the inner diameter of the tubular shredder was determined at which the most intense heating was observed with minimal specific energy consumption - 50 mm. In combination of two criteria for evaluating the water heating process in the molasses plant, the rational diameter of the holes of the tubular shredder equal to 6 mm was determined.