Innovative study on pneumatic separation of grain heap and economic feasibility of design versions

Abstract

The paper is dedicated to the innovative analytical research in the field of pneumatic separation concerning the issues of grain heap feed for harvester-thresher cleaning, composition of tailings and the amount of grain. The problem of improving the separation of air-sieve cleaning of modern combines is of great current interest. The cleaning design with the use of pneumatic and inertia separator of small grain heaps for high-producing harvester-thresher is developed. The engineering study is conducted for the installation of the 8-bladed rotor above the chaffer sieve for experimental cleaning taking into account dimensional limitations and minimal alteration of the current air-sieve cleaning. The results of the study show the opportunity of better operation of the design of small grain heap cleaning with the application of pneumatic and inertia separator. The developed solutions make it possible to reduce grain losses and increase the harvester-thresher productivity level, as a result of which it is expected to achieve the economic effect assessed in the study.

The Grain Cleaning Production Lines’ Energysaving Operation Modes of Electromechanical Systems

“…Recommendations on improving the design of pneumatic grain separators were also developed to increase their efficiency. Although pneumatic transportation is considered experimental science, Bortolaia et al (2008) and Kroulík et al (2016) noticed a lack of procedures, parameters, and orientation in the literature for tests and comparisons that are fundamental to the design of this type of conveyor (Muratov et al, 2020). On the other hand, to simulate the system of mechanical ventilation of granaries Zhang et al (2014) recommend using dynamic numerical modeling.…”

Energy Assessment of the Pneumatic Sieve Separator for Agricultural Crops

“…Therefore, it is an urgent task to intensify preliminary cleaning of seeds of agricultural crops, subject to a decrease in specific energy consumption (Muratov et al, 2020).…”