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).