342-0925/02 – Storage System Mechanical Handling and Equipment Technologies of Bulk Solids (SMTSH)

Gurantor departmentInstitute of TransportCredits10
Subject guarantordoc. Ing. Robert Brázda, Ph.D.Subject version guarantordoc. Ing. Robert Brázda, Ph.D.
Study levelpostgraduateRequirementChoice-compulsory
YearSemesterwinter + summer
Study languageCzech
Year of introduction2013/2014Year of cancellation
Intended for the facultiesHGF, FSIntended for study typesDoctoral
Instruction secured by
LoginNameTuitorTeacher giving lectures
BRA37 doc. Ing. Robert Brázda, Ph.D.
Extent of instruction for forms of study
Form of studyWay of compl.Extent
Full-time Examination 25+0
Combined Examination 25+0

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:

Walker,S.C.: Mine Winding and Transport. Elsevier 1988 Standard Shear Testing Technique for Particulate Solids Using the Jenike Shear Cell (SSTT), A Report of the EFCE Working Party on the Mechanics, UK (1989), ISBN 0-85295-232-5.

Way of continuous check of knowledge in the course of semester

Průběžné konzultace a diskuze nad semestrálním projektem.

E-learning

Další požadavky na studenta

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

Full-time form (validity from: 2013/2014 Winter semester)
Task nameType of taskMax. number of points
(act. for subtasks)
Min. number of points
Examination Examination  
Mandatory attendence parzicipation:

Show history

Occurrence in study plans

Academic yearProgrammeField of studySpec.FormStudy language Tut. centreYearWSType of duty
2014/2015 (P2301) Mechanical Engineering (2301V003) Transport Equipment and Technology P Czech Ostrava Choice-compulsory study plan
2014/2015 (P2301) Mechanical Engineering (2301V003) Transport Equipment and Technology K Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (2301V003) Transport Equipment and Technology P Czech Ostrava Choice-compulsory study plan
2013/2014 (P2301) Mechanical Engineering (2301V003) Transport Equipment and Technology K Czech Ostrava Choice-compulsory study plan

Occurrence in special blocks

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