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 measurement 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 Janssen’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.