342-0925/02 – Storage System Mechanical Handling and Equipment Technologies of Bulk Solids (SMTSH)
| Gurantor department | Institute of Transport | Credits | 10 |
| Subject guarantor | doc. Ing. Robert Brázda, Ph.D. | Subject version guarantor | doc. Ing. Robert Brázda, Ph.D. |
| Study level | postgraduate | Requirement | Choice-compulsory |
| Year | | Semester | winter + summer |
| | Study language | Czech |
| Year of introduction | 2013/2014 | Year of cancellation | 2020/2021 |
| Intended for the faculties | FS, HGF | Intended for study types | Doctoral |
Subject aims expressed by acquired skills and competences
Students will acquire enough information for the correct choice of transport and storage depending on the characteristics of the manufacturing process of bulk materials for a variety of applications (eg. cement, wood chips, gravel, plastic granules, cocoa, coal powder, soot, cereals).
Teaching methods
Individual consultations
Experimental work in labs
Project work
Summary
Students of the subject will be introduced to fundamental laws and described
parameters needed to a mathematic and physical description of a bulk solid
behavior. Especially, a core of the subject will be turned to a storage system
proposal. Latest knowledge of the rapidly growing branch: nanotechnology will
be presented here also. There will be demonstrated measurement methods
following interpretation of measured values in the subject.
Ideal bulk solid; Definition of bulk solids state; Difference between
fundamental material states; Bulk solids logistics; Criteria of
transport/Processing system choice for Bulk solids. Granulometry and
Morphology, and methods and theory of their assessment, including mathematical
models, eg. Gauss, RRSB, Logarithmic Distribution and so on. Bulk solid
Properties and Their Description; Flow influence; Flow pattern size and their
development; Jenike Shear Machine principle and its equation; Rotary Shear
Machine; Another shear machine construction; Interpretation of measured
values; Mechanical-Physical Property definition. Particulate Material
Constitution for the Bulk Solid Application; Methods of angle of internal
friction Mmasurement and its interpretation including energy concept; Partial
physical magnitude influence ratio to bulk solid mechanical-physical property.
Definition of Inter-Particle Bindings; Ratio of individual physical and
geometrical property influence to mechanical-physical properties of Bulk
solids, eg. moisture, shape, mechanical and electrical bindings, Roscoe’s
diagram and its design and principle, applications. Models of Pressure State
Distribution; Models of bulk solid pressure development; General model of
bulk solid pressure distribution; Usual and state-of –the art of pressure
modeling methods of Bulk solids; Method of pressure distribution solution for
Bulk solids according to Jansen’s, Rankin’s and Pascal’s theories. Motion of
Bulk Solid Particulates in Assembly Constitution; 1st and 2nd of displacement
mechanism; Ideal bulk solids and their deeper relations; Piston flow mechanism
and its definition and description including edge conditions; Laminar flow
mechanism and its definition and description including edge conditions. Speed
Outlet Out of Vessel; Pressure peak and its model creation incl. technical
conclusions. Pulsating character of Bulk solid flow; Own and wall frequency.
Flow Failures of Bulk Solids; Static and dynamic arc; Mass and funnel flow;
Jenike’s theory of mass; Ideal bulk solid application; Flow through cone-shape
outlet. Application 1st: Bulk Solid Properties and Their Application by
Transport, Processing and storage designing; Bulk solid moulding /Balshin’s
Eq. Application 2nd: Shapes and Machine Materials by Transport, Processing and
storage designing; Bulk solid moulding /Balshin’s Eq. Bulk solid aeration.
Pneumatic Transport. Choice Method of Grinder and Mill Proposal; Grinding
theory; degradation and compression; Granulation. Criteria of Conveyor Choice
and Transport Systems for Bulk Solids; Demands to transport and storage, and
their quality parameters. Innovation in the Bulk Solid Area; R&D trends in the
area; Nanotechnology; Present situation in the Czech Rep. in comparison with
EU; R&D.
In main requirement for passing the subject is elaborating a short abstract of
a picked theme (Essay).
Compulsory literature:
Muther, R., Haganas, K.: Systematic Layout Planning, SNTL, Czech Rep., 1980.
Brown, R.: Principles of Powder Mechanics, Pergamon, UK, 1970.
Schulte, Ch.: Logistics, Victoria Publishing Praha, Czech Rep., 1994.
Recommended literature:
Way of continuous check of knowledge in the course of semester
Průběžné konzultace a diskuze nad semestrálním projektem.
E-learning
Other requirements
Basic knowledge of the issue of bulk materials
Prerequisities
Subject has no prerequisities.
Co-requisities
Subject has no co-requisities.
Subject syllabus:
Logistics of bulk materials, the definition of ideal bulk materials, loose definition
materials, defining the differences between the basic states of criteria elections
transport or processing system for bulk materials.
Geometric properties of bulk materials, particle size, morphology,
assessment methodology and theory (Gauss, RRSB, logarithmic distribution and more
statistics).
Mechanical and physical properties of bulk materials, descriptive variables, influence
on the flow and pressure profile. The principle of linear shear machine, basic equations,
rotary shear machine, other constructions.
Methods for measuring the angle of internal friction, energy concept, the degree of influence
partial physical quantities on the mechanical and physical properties of bulk
wt.
The degree of influence of various physical parameters on the mechanical and physical properties of bulk materials, např.vlhkost, shape, mechanical linkages, electrical ties, Roscouv diagram, structure, principles and applications. A general model of pressure distribution in the bulk compositions, traditional and modern models. Method of solution pressure distribution according to Jansen, Rankin, Pascal.
Ideal loose material, deepening relationships, piston mechanism
flow definition, description, boundary conditions, plastic mechanism flow definition,description, boundary conditions.
Pressure peaks, model creation, technical consequences. Pulsating character
the flow of bulk materials, wall frequency.
Disorders of the flow of bulk materials, static and dynamic arch. Weights and
core flow, mass flow Jenikeho theory, application ideal bulk materials.
Application properties of bulk materials in the construction of transport,
process and storage facilities, pressing bulk materials (Balšinova equation).
Application properties of bulk materials in the construction of transport,
process and storage facilities, pressing bulk materials (Balšinova equation)
pneumatic transport.
The procedure for the design of mills and grinders, disintegration theory, degradation and compression granulation.
Criteria for selecting a suitable conveyor and conveyor systems for bulk
materials, tracked demands on transport process.
Innovation in bulk materials, development trends, status in the Czech Republic
Compared with the EU.
Conditions for subject completion
Occurrence in study plans
Occurrence in special blocks
Assessment of instruction
Předmět neobsahuje žádné hodnocení.