STUDY OF THE POSSIBILITY OF USING CARBON COMPOSITES
IN THE CREATION OF INDUSTRIAL FANS
APPLIED TO REFRACTORY PRODUCTION
S. A. Kolesnikov,
S. V. Vasil’chenko,
and V. G. Topchiev
Translated from Novye Ogneupory, No. 4, pp. 92 – 99, April 2010.
Original article submitted February 3, 2010.
An industrial fan impeller is tested, its strength reliability is established, and the calculated operating time is
determined for a carbon composite in an air atmosphere and flue gases. Results of tests confirm the high corro
sion resistance of carbon material in corrosive liquid media associated with the production of refractory mate
Keywords: carbon composite material, fan impeller, chemical resistance.
Use of object made from structural composite materials
is most effective in assemblies and units with an inertial dy-
namic load. Here the low density with high strength and elas-
ticity modulus of contemporary composites creates condi-
tions for high economic and operating efficiency of objects
of relatively expensive composite materials. Recently (since
1990) composite carbon- and glass-reinforced plastics have
been used in wind energy for manufacture of rotor blades
[1, 2]. The dimensions of the blades exceed several meters.
Reliable structures for blade fastening assemblies for pro
longed operation, quality control methods, engineering ex
amples of prolonged atmospheric stability and fatigue
strength for materials, have been developed.
Carbon-carbon composite materials (CCCM) have the
same high strength and stiffness with low density as for poly
mer composites. At the same time their high heat resistance,
refractoriness and chemical stability are known. Therefore
they are promising for moving objects, for example with
high circumferential velocities of structural elements and
mechanisms, under high temperature conditions, and in cor
These conditions relate to operation of a fan impeller in
metallurgical or refractory production. Results are known of
the application in industrial fans of composite materials,
mainly carbon- and glass-reinforced plastics [3, 4]. Fans in
tended for organizing transport of air in production areas at
room temperature or at the temperature of environment
[4 – 6].
Production of refractories is connected with movement
of large volumes (up to tens of thousands of cubic meters per
day) of hot (up to 900°C) working gases based on air, carbon
monoxide and dioxide . In gas atmospheres oxygen of the
air and carbon dioxide are oxidizing agents for carbon mate
rials. Carbon monoxide creates a reducing atmosphere and it
does not react chemically with carbon. The working temper
ature of the gas and air streams in tunnel furnaces for refrac
tory production has an average level from 550 to 800°C .
In tunnel furnaces for firing objects it is obligatory to feed
hot air with a temperature of 350°C. Provision of hot air is
organized by aerodynamic systems. Their functioning is con
nected with expenditure of energy, whose amount in turn is
determined by the weight of the rotary and movable elements
of a structure . In refractory production an important ques
tion that remains is the choice of corrosion-resistant materi
als for cleaning waste water and hot waste gases.
The aim of this work is to study the possibility of using
two-dimensional reinforced carbon-carbon composite mate
rial in aerodynamic systems for air supply in refractory pro
duction on the example of operating and industrial fan
VTs4-70-6.3. Production of material of this class of compos
ites has recently been resumed by ZAO Éskarb .
The impeller of an industrial fan experiences mechanical
and aerodynamic loads, corrosive action of waste products,
Refractories and Industrial Ceramics Vol. 51, No. 2, 2010
1083-4877/10/5102-00107 © 2010 Springer Science+Business Media, Inc.
FGUP NIIgrafit, Moscow, Russia.
ZAO Éskarb, Moscow, Russia.
OOO New Basalt Technology, Moscow, Russia.