Name
Serga Georgy Vasilievich
Scholastic degree
•
Academic rank
professor
Honorary rank
—
Organization, job position
Kuban State Agrarian University
Web site url
—
—
Articles count: 18
The article presents results of research of rotary-screw
systems in relation to the creation of rotary kilns for
the annealing of-cuttings in the preparation of cement
clinker. Using the proposed design, in comparison
with known designs of similar purpose, it significantly
improves performance, reduces size and power consumption
through the use of rotary screw systems in
the form of screw rotors and drums made hollow with
sidewalls assembled from separate strips or plates of
different geometrical shapes with form inside the
screw breaks or smooth edges, screw surfaces and
screw grooves. It is shown that the housing of the rotary
kiln is expedient to produce helical surfaces whose
centers of curvature are located within the housing.
Using the proposed constructions rotary kiln during
the firing when preparing cement wedge can increase
the speed of rotation of the housing, furnaces 5-10
times due to changes in the rotary-screw systems increase
efficiency and reduce the size of furnaces
We have provided technical solutions to improve performance
of technological systems for the preparation
of solutions and concrete based on the use of screw
rotors in the form of drums with helix lines formed on
the perimeter as interconnect lines of his spiral surfaces.
We discuss the six varieties of devices and installations
for mixing, including concrete mixers, reels
which are of a complicated geometric body formed by
helical surfaces with variable or constant pitch and
which creates screw lines in the places of their connection.
In the form of screw drums, they may be conical,
concave, convex, cylindrical. The experimental test
was conducted on the concrete mixer drums, which are
arranged one in the other. The implementation of the
mixer in the form of coaxially edited two barrels provides
not only a reduction in size in length, but a significant
reduction in energy consumption due to the
use of heat, released during the activation process of
inert heating of the concrete mix as when re-mixing
and concrete mix when mixing it with water and transportation.
The drums of such systems is made of flat
elements with the formation of the helical lines discretely
spaced around the perimeter of different pitch
and with different numbers directed towards each other
helical surfaces. In the process of transporting the
components of concrete in the internal screw drum
there is active mixture of sand, gravel and cement.
Thus, there is not only the destruction of lumpy, sticky
components of the raw materials, but also active uniform
distribution of particles of cement, sand and
gravel into a homogenous mass. The implementation
of the proposed technology and equipment ensures not
only reduction of the dimensions of the mixer length,
but also improving the quality of finished products, as
well as potential cement savings of 3-5%
A number of small-sized machines for division of loose
materials on the basis of screw drums created with use
of engineering geometry and computer graphics
methods, in particular of the engineering geometry
section: curves and surfaces. In these machines, unlike
the known ones, the effect of the movement of bulks on
the curvilinear surfaces of screw reels with imposing of
low-frequency fluctuations from the vibrator on this
main movement is used. Such addition of two
movements does not only increase productivity, but also
provides self-cleaning of the sifting surfaces of screw
drums. The standard machine’s schemes are presented
with use of low-frequency fluctuations on the basis of
the screw drums made of several screw punched strips
with smooth screw lines on perimeter and also of screw
drums of only one of punched strips with various form of
cross section of the sifting surface
Results of engineering and scientific search of
improvement of resource-saving machine technologies
of finishing and cleanup processing of cars details,
development of new camps and technologies are
presented. The possibility of low-frequency
fluctuations with big amplitude can be implemented
due to assembling flat or curvilinear elements on
external surfaces of the relative screw reel. The use of
computer modeling enabled us to obtain a relative
screw drum that provides not only giving movement to
loading masses with a big fluctuations amplitude, but
also compression of loading masses in the process of
their motion from loading to unloading. In such
machines increase in processing efficiency is reached
not only due to achievement of great movement
amplitudes values of the loading masses, but also at
the cost of compression of loading masses in
processing and intensity increase of their mixing. The
scheme of the machine for continuous processing with
mechanization of separation of details from working
environments particles is provided. Results of
researches of quality and surfaces micro hardness
change processed in the offered machines designs
show that details processing time makes 3-6 min
In complex multiparameter technical systems there are
numerous and varied physical processes which, on the
one hand, have a significant impact on the
performance of those systems, and on the other hand, it
is extremely difficult amenable to description in the
form of meaningful analytical models based on
equations, because these models must take into
account the specific features of the systems. As a
consequence, the development of conceptual analytical
models is a "hand-made work" and it is associated with
a large number of simplifying assumptions that reduce
their versatility and reliability. But there is also another
principle of modeling: the construction of
phenomenological information models, i.e. models that
do not have analytical forms of representation that
describes the simulated system superficially as a
"black box". Such models can be built directly based
on empirical data and with the appropriate software it
can be a standard technology much faster and much
less time consuming than developing meaningful
analytical models. On the other hand, the
phenomenological information model can be sufficient
to determine the rational design features and
parameters of the modes of operation of complex
technical systems. Besides, such phenomenological
models can be viewed as the first stage in the
development of meaningful analytical models. It is
proposed to use a new universal innovative method of
artificial intelligence for creating phenomenological
models of complex technical systems: automated
system-cognitive analysis (ASC-analysis) and its
programmatic Toolkit which is a universal cognitive
analytical system called "Eidos". In the system of
"Eidos" we have implemented a software interface that
provides direct input into the system large amounts of
empirical data from an Excel file. The system of
"Eidos" can directly (based on empirical
(experimental) data) calculate how much information about the results of the technical systems is contained
in the facts of possessing certain specific structural
elements and certain values of the parameters modes
of its work. On this basis, the system provides
research-based and appropriate recommendations for
the rational choice of design features and parameters
of the operation modes of the simulated system
The article presents the results of the research on modeling of working bodies of agricultural equipment by methods of engineering geometry and computer graphics. The design and the principle of operation of the equipment on the basis of working bodies in the form of screw drums is shown on the example of a device for the preparation of concentrated feed