Dovbysh A. Parameters substantiation of a tube chain conveyor with a separator bin

Thesis is dedicated to theoretical and experimental research on projecting and calculation of the technological and design requirements of working organs of tube drag chain conveyors that will give the opportunity to improve the friable material transportation. The theoretical calculation of driving chain fluctuations of a conveyor which transports friable material by means of oscillation excitation caused by drag dynamics along the salient points of horisontal and vertical conveyor parts have been made. The conditions of resonance vibrations for different speed rates of friable material transportation have been identified. It has been established that the transition amplitude due to resonance is higher for higher speed rates of a driving chain, and a simultaneously maximal dynamic stress in a chain is higher when the speed rate of a friable material transportation increases from 1m/s to 2 m/s. It causes a 5.2 times increase in dynamic stress, and a 3 times increase under a speed rate from 2 m/s to 3 m/s under the same parameters. The developed constructions of tube chain conveyors with different working organs as well as of test-bed equipment with the use of frequency changer Altivar 71 and software Power Suite v.2.5.0 made it possible to conduct a number of experimental research on identifying the productivity while transporting the friable material. The main parameters of a technological process of friable material transportation and separation have been substantiated on the basis of theoretical and experimental research. The results of theoretical and experimental research have been introduced into production process.