NIPKB Stroitehnika CJSC (Russia):

Sizikov S. A., General Director, Ph. D. in Technical Sciences

Vyatkin G. M., Deputy General Director

Sizikov V. S., Junior Researcher

E-mail (common): stroitehnika@mail.ru 

Interstroyproekt (Russia):

Shuloyakov A. D., General Director, Ph. D. in Technical Sciences, interstroyproekt@mail.ru

The process of drying and dedusting of crushed ballast screenings should remove finely dispersed impurities by vibration airflow-driven techniques in an aerated vibration fluidized bed plant (AVFB). One of the main technical parameters of AVFB plants is their throughput capacity, which directly depends on the flow rate of the material being processed on the vibrating load-carrying grate. To determine the flow rate, equations of dynamics of vibration-induced motion of the aerated layer of loose material on the gas-permeable bottom plate were used. Based on the above equation solutions an algorithm and a special software tool («Vibra») were developed to compute the principal parameters of dynamics of the vibration-induced motion of the material layer on the bottom plate of the vibrating device, including calculated flow rate of the aerated layer vibration-induced movement of material. For final adjustments of the software tool, experiments were performed on a special bench representing a horizontal vibrating chute with two bottom plates, the upper one being a flat perforated grate. On the basis of the results, numerical values of ratios were determined to describe deformation susceptibility of the sand layer in the process of its movement with the bottom plate of the vibrating screen, a margin of error was also estimated for the software modeling of motion parameters versus the experimentally identified parameters of physical sand movement. The margin of error does not exceed 10 %, and is admissible for «Vibra» software applications in engineering design and selection of modes of operation for AVFB plants, as well as in determining their flow rate capacity.

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4. Sizikov S. A., Vyatkin G. M., Skripilov A. P., Shuloyakov A. D. Obogashchenie Rud, 2012, No. 6, pp. 43–46.
5. Sizikov S. A., Lapshin V. L. K voprosu vybora ratsionalnykh rezhimov raboty vibrodozatorov (On choice of vibrodosimeter rational operations). Povysheniye effektivnosti dinamiki stroitelno-dorozhnykh mashin. Mezhvuzovskiy sbornik nauchnykh trudov (Improvement of the effectiveness of road-building machine dynamics. Interuniversity collection of scientific papers), Yaroslavl, Polytechnic Institute of Yaroslavl, 1987, pp. 66–74.