Výzkum fluidizace v dopravních a skladovacích systémech

Abstract

Motivation, that supports the initiation of scientific research and thus to the formation of the work, was a lack of knowledge or information paradoxically. The lack of knowledge or information in the sense that I lived in the belief that the "Research fluidization in Transport and Storage Systems" is an unexplored area. I have lived in this belief until I was studying the fluidization problems himself deeper in. Another motivation was sincere interested in expanding their knowledge of the behavior of particles of solid matter on which operates the gas stream in order to raise and maintain the particles in suspension. The primary problem that is being solved, thus the behavior of layers of solid particles (bed) as a unit which is enclosed in vertical cells of different cross section. The layers of particles and bottom are defined differently aerated flow of the gaseous medium. It is an examination of the different behavior of aerated particulate solid. Treatment upward flow of the gaseous medium thus the different modes of behavior of the bed particles and from fixed bed to pneumatic transport. The goal is to determine which of the proposed vertical faces is suitable for a given mode of behavior particle bed. To solve the problem of tracking modes conduct an experimental apparatus. The behavior of the material within this experimental device has been verified by scaling using Ansys Fluent. Achievements solution show that the vertical cell with a regular pentagonal cross section, has the best properties for fluidization to the maximum with a minimum (minimum energy input) pressure loss, so this type of cells suitable for a device which is intended for fluidization but also for pneumatic transport. Conversely vertical cell with a regular triangular cross-section showing the property worthy of the best aspirant for use in the storage of bulk materials because it has the highest rate of the voids between particles, and therefore least likely to creating vaults. The findings obtained in this research can be used both in storage and in transport of particles of solid matter, but also to design equipment for significant airing of solid particles in tanks with subsequent transport.