EXPERIENCE WITH REPAIRING SHAFT FURNACE LINING
I. V. Tropinova,
A. M. Tropinov,
N. I. Chulovskii,
P. A. Kudrii,
V. S. Fedyanin,
V. N. Mots,
Ya. F. Vakhovskii,
V. N. Pekel’nyi,
and V. N. Kovalevskii
Translated from Novye Ogneupory, No. 12, pp. 6 – 10, December, 2008.
Original article submitted April 8, 2008.
The Alineka Company has produced dry mixtures of the refractory concretes BRAB40I15** and
BRAB50I17** as well as light thermally insulating components I-9 and I-11 for the current and restorative re
pair of the lining in a shaft furnace. The current and restorative repairs have been performed professionally by
the Kudrii Company at 11 organizations, which has confirmed the reliability and improved working life of lin
ing made of these materials (not less than two years). The lining reconstruction performed by Tekhnosakhar
has eliminated existing deficiencies in the working technology (lumping) on the one hand while on the other it
has reduced the consumption of fuel (energy saving) and raised the amount and competitiveness of the final
product (lime), while increasing the throughput.
The steadily increasing prices of energy resources force
energy-saving technologies to pass from theoretical studies
and transfer to introduction in individual cases. In the area of
furnace heat engineering, the shaft furnaces built by the
Rosstromproekt with throughput from 35 to 200 ton/day are
dependent on the obedience to a working technology where
deviations lead to lumping of the fired limestone, i.e., the oc-
currence of a high-temperature source (1200°C), which
sometimes may exceed 1700°C, and which is the cause of
melting in the lining (Figs. 1 and 2). The following factors
involving technology deviations are reasons for this:
excessive fuel (over 7.0%);
more than 5% content of dusty fuel fractions (less than
deviations in the granular size of the sediment (the size
of the lumps should be in the range 60 – 80 mm) and of the
fuel (size of the lumps should be 40 – 60 mm);
contamination of the sedimentary rock with clay (more
poor choice of charge components, e.g., limestone-coal
(limestone-coke is better);
inclination of the furnace lining to the vertical more than
2° (observed in most furnaces);
poor distribution of the sedimentary rock-fuel system;
lack of temperature monitoring and firing technology
To raise the lining reliability and working life, it is first
necessary to devise a technology that excludes the above fac-
Refractories and Industrial Ceramics Vol. 49, No. 6, 2008
1083-4877/08/4906-0418 © 2008 Springer Science+Business Media, Inc.
Alineka Scientific Production Federation, Kiev, Ukraine.
Tekhnosakhar, Vinnitsa, Ukraine.
P. A. Kudrii Company, Vatutino, Cherkassy Region, Ukraine.
Cellular Concrete and Component Experimental Plant Ltd, Bel
Pal=mir Sugar Plant, Voznesenskoe-1, Cherkassy Region, Ukraine.
Otradnoe Sugar Corporation, Orlov Region, Russia.
Fig. 1. IPSh-100 shaft
furnace in which lump
ing occurs and the lin
ing of ShPD-39 com