Fluidized bed porosity ɛ is a primary property of fluidized systems when determining the minimum floating velocity. The air flow rate in (or fluid layer material) increases with diminishing porosity. This paper devoted to calculations for consisting spherical particles having different diameters (2, 4, 6, 8, 10 mm) and differently shaped polygonal cells possessing characteristic particle velocities. For testing purposes, was experimentally measured subsequently modelled by simulation using...

The present article deals with investigation of geometric properties surface modified titanium white the help silica oxide by various methods shape and size identification clusters made processing fluidisation. For purpose artificially (titanium white) was processed fluidisation a defined percentage additive. selected additive represented hydrophilic pyrogenic (micronised oxide), known under commercial name Aerosil 200, R972 metal Aeroxide P25. began image acquisition individual additives...

This paper deals with adjustment of certain optical parameters nano and micro-structured particles silica by which Mastersizer 2000 as a device for size distribution particle measurement has been used. The method process may be used looking unique refractive absorption index investigated particles. Optical properties, i.e. the have found related to inter-particle bindings in form Hamaker constants. For properties calculations using Mie Scattering solutions representing electric magnetic...

The contribution deals with the strength analysis and optimization of welding robot mechanism in emergency stop state. common operational positioning is characterized by smooth course speeds time. resulting load does not differ significantly from static loading. However safety requirements given norm require ability function. Since speed time rather steep higher values acceleration thus excitation force expected. dynamical simulation performed describes response form stress time, quantifies...

The paper deals with an experience innovation process of a technical solution grinding device for homogenization mechanical metallurgy process.Milling equipment-ball mills and planetary ball are used conventional material milling.Their principle is based on very fine milling the material.As other equipment, there effect by combining three factors: pressure, impact, smearing.A major disadvantage previously equipment fact that during process, due to pressure impact bodies, agglomerates...

The cooperation of students the Faculty Mechanical Engineering VSB-Technical University Ostrava and companies engaged in construction operation storage systems has created a practical requirement for development autonomous equipment that will eliminate flow defects particulate materials systems. Based on these requirements with industrial practice, an innovative device was created, protected by utility model No. CZ28212 patent CZ307405 (see www.upv.cz). invention relates to providing...

EXPERIENCE WITH MASTER DEGREE EDUCATION OF STUDENTS BY INNOVATION BALL MILL DEVICE DEVELOPED IN PATENT

Voidage of a fluidized bed is primary property systems when determining the minimum floating velocity.The air flow rate in (or fluid layer material) increases with diminishing voidage.This paper devoted to voidage calculations for consisting spherical particles having different diameters and differently shaped polygonal cells possessing characteristic particle velocities.For testing purposes, voltage was experimentally measured subsequently modelled by simulation using Rocky (DEM) software.

Appears in: EDULEARN20 Proceedings Publication year: 2020Pages: 109-112ISBN: 978-84-09-17979-4ISSN: 2340-1117doi: 10.21125/edulearn.2020.0064Conference name: 12th International Conference on Education and New Learning TechnologiesDates: 6-7 July, 2020Location: Online

Appears in: EDULEARN20 Proceedings Publication year: 2020Pages: 103-108ISBN: 978-84-09-17979-4ISSN: 2340-1117doi: 10.21125/edulearn.2020.0062Conference name: 12th International Conference on Education and New Learning TechnologiesDates: 6-7 July, 2020Location: Online

This article concerns the cooperation between VŠB-Technical University of Ostrava and company SSI Schäfer Ltd. in solving bachelor's thesis, aim which was design two variants manually driven industrial trucks with a load capacity 1500 kg. The proposals were created s.r.o, provided essential information on based. documents include company's intellectual property: drawings existing structure, material sheets structures used, practical experience safety requirements ensuring minimum...

The paper sets an example of modeling the expansion and bed pressure drop cohesive problematic material -titanium dioxide modified by Aerosil R972 in program Ansys / CFX -Fluent using two multiphase models, Euler Fluid-Granular Model Dense Discrete Phase at certain predefined conditions a square section fluidized cell.The variables drop, particle concentration volume velocity field solid particles were defined for simulations metallurgical processes.The research follows on from previous...