AND HEAT-INSULATING COMPONENTS IN FERROUS
AND NONFERROUS METALLURGY
G. M. Martynenko,
S. M. Mal’tsev,
and S. A. Zabolotnyi
Translated from Novye Ogneupory,No.6,pp.3–5,June, 2009.
Original article submitted April 20, 2009.
It is shown to be promising to use ceramoconcrete technology in making refractory and heat-insulating materi
als. Research on these concretes has been done in industrial furnaces and plant. A new technology has been de
veloped for gun-spraying of ceramoconcrete. Industrial tests have been performed and a technology has been
devised for making large-block thermal-insulation components. Improvements have been made to the mate
rial as regards strength and thermal conductivity. Tests have been done on thermal-insulation ceramoconcretes
in the lining of pouring ladles. The characteristics of ceramoconcretes are compared with those of traditional
Keywords: ceramoconcrete, furnace, ladle, channel, lining, gun coating, thermal-insulation refractory, ther-
There are important lines in the scientific industrial ac-
tivity of this organization in the development, testing, and
implementation of new and promising materials. Efforts are
devoted primarily of all to raising the quality of the materials
and consequently increasing their working lives, and also the
scope for reducing energy consumption.
Recently there has been a substantial volume of research
that has provided major results on the production of refrac
tory and thermal-insulation materials on the basis of
ceramoconcrete. Much experience has been accumulated in
using dense ceramoconcretes in contact with molten media
in magnesium electrolyzers and chlorators, as well as
fluidized-bed furnaces and so on. Good results have been ob
tained in the development of a working lining, burner fit
tings, and pouring gullies made of ceramoconcrete in nonfer
rous and ferrous metallurgy (Figs. 1 and 2).
Extensive use has recently been made of ceramo
concretes in furnaces for firing the anodes for the aluminum
industry, where they have replaced traditional mullite
refractories. A basic criterion influencing the working life of
refractories in this furnace is the thermal stability. Table 1
gives the characteristics of IKBM-62 components made of
ceramoconcrete by comparison with those of MLS-64 ones.
Table 1 shows that ceramoconcretes have clear-cut advan-
In 2008, dense long and large-block components of
ceramoconcretes were made for organizations in nonferrous
metallurgy. In February 2009, industrial tests were com-
pleted on a new development at this organization: a technol
ogy for gun-spraying with ceramoconcrete. The unique prop
erties of ceramoconcretes allow one to deposit them by gun
spraying at an essentially new level. The material shows al
most no shrinkage, and this avoids the formation of a large
number of cracks, which had been assumed to be a normal
phenomenon for a gun-sprayed surface. Also, there has been
Refractories and Industrial Ceramics Vol. 50, No. 3, 2009
1083-4877/09/5003-0163 © 2009 Springer Science+Business Media, Inc.
From the International Conference of Refractory Engineers and
Metallurgists, 23 – 24 April, 2009, Moscow.
Soyuzteplostroi Company Ltd, Moscow, Russia.
Fig. 1. Channel furnace under wagons for firing bricks (after two
years of work).