Maintenance repair of the refractory lining of glass furnaces

2000 ◽  
Vol 41 (5-6) ◽  
pp. 211-212
Author(s):  
V. I. Kirilenko
Keyword(s):  
Refractory Lining ◽  
Glass Furnaces

Some features of the refractory lining of design elements in glass furnaces

1977 ◽  
Vol 34 (11) ◽  
pp. 700-703 ◽  
Author(s):  
K. T. Bondarev ◽  
O. N. Popov ◽  
V. A. Il'inskii ◽  
A. S. Bokova
Keyword(s):  
Refractory Lining ◽  
Design Elements ◽  
Glass Furnaces

Measurement of erosion state and refractory lining thickness of blast furnace hearth by using three-dimensional laser scanning method

2020 ◽  
Vol 118 (1) ◽  
pp. 106
Author(s):  
Lei Zhang ◽  
Jianliang Zhang ◽  
Kexin Jiao ◽  
Guoli Jia ◽  
Jian Gong ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Laser Scanning ◽  
Refractory Lining ◽  
Three Dimensional ◽  
3D Laser Scanning ◽  
Scanning Method ◽  
Blast Furnace Production ◽  
Severe Erosion ◽  
Residual Thickness ◽  
Minimum Depth

The three-dimensional (3D) model of erosion state of blast furnace (BF) hearth was obtained by using 3D laser scanning method. The thickness of refractory lining can be measured anywhere and the erosion curves were extracted both in the circumferential and height directions to analyze the erosion characteristics. The results show that the most eroded positions located below 20# tuyere with an elevation of 7700 mm and below 24#–25# tuyere with an elevation of 8100 mm, the residual thickness here is only 295 mm. In the circumferential directions, the serious eroded areas located between every two tapholes while the taphole areas were protected well by the bonding material. In the height directions, the severe erosion areas located between the elevation of 7600 mm to 8200 mm. According to the calculation, the minimum depth to ensure the deadman floats in the hearth is 2581 mm, corresponding to the elevation of 7619 mm. It can be considered that during the blast furnace production process, the deadman has been sinking to the bottom of BF hearth and the erosion areas gradually formed at the root of deadman.

Exploitation of glass furnaces working on natural gas

1963 ◽  
Vol 20 (12) ◽  
pp. 650-653
Author(s):  
N. A. Shestak
Keyword(s):  
Natural Gas ◽  
Glass Furnaces

First-principles simplified modelling of glass furnaces combustion chambers

2008 ◽  
Vol 16 (12) ◽  
pp. 1443-1456 ◽  
Author(s):  
Olivier Auchet ◽  
Pierre Riedinger ◽  
Olaf Malasse ◽  
Claude Iung
Keyword(s):  
First Principles ◽  
Combustion Chambers ◽  
Glass Furnaces

Service life of refractories in large glass furnaces

1971 ◽  
Vol 28 (6) ◽  
pp. 341-344
Author(s):  
V. M. Budov ◽  
Yu. V. Seskutov ◽  
K. P. Krylov
Keyword(s):  
Service Life ◽  
Large Glass ◽  
Glass Furnaces

Light monolithic concrete for insulating the roofs of glass furnaces

1988 ◽  
Vol 45 (2) ◽  
pp. 65-67
Author(s):  
R. Ya. Akhtyamov
Keyword(s):  
Glass Furnaces

ADVANCED TYPES OF CHECKERWORK OF REGENERATIVE HEAT EXCHANGERS FOR GLASS FURNACES

2021 ◽  
pp. 3-10
Author(s):  
O. Koshelnik ◽  
S. Hoisan
Keyword(s):  
Phase Transition ◽  
Heat Exchangers ◽  
Heat Storage ◽  
Point Of View ◽  
Operating Conditions ◽  
Flue Gases ◽  
Regenerative Heat ◽  
Exchange Processes ◽  
Glass Furnaces ◽  
Refractory Bricks

One of the ways to increase glass furnaces energy efficiency is to apply heat exchangers for flue gases thermal potential utilization. Flue gases losses is up to 25-40 % of the total amount of heat supplied in the furnace. These losses are influences by such factors as fuel type, furnace and burners design and manufactured product type. Regenerative heat exchangers with various types of heat storage packing is more efficient for high-power furnaces. Such types of regenerator checkerwork as Cowper checkerwork, two types of Siemens checkerwork, Lichte checkerwork and combined checkerwork have already been sufficiently researched, successfully applied and widely used for glass furnaces of various designs. All of its are made of standard refractory bricks. Basket checkerwork and cruciform checkerwork that are made of fused-cast molded refractory materials have been widely used recently as well. Further improvement of regenerative heat exchangers thermal efficiency only by replacing the checkerwork does not seem possible unless their size being increased. But this enlarging is not always realizable during the modernization of existing furnaces. From this point of view heat storage elements with a phase transition, where metal salts and their mixtures are used as a fusible agent look promising for glass furnaces. These elements can accumulate additional amount of heat due to phase transition, which allows to increase significantly heat exchanger thermal rating without its size and operating conditions changing. However, it is necessary to carry out additional studies of this type of checkerwork dealing with analysis of complex unsteady heat exchange processes in regenerators and selection of appropriate materials that satisfy the operating conditions of regenerative heat exchangers so that the checkerwork can be widely used for glass furnaces.

Possibilities of Use of the Thermographic Measurement as a Tool for Detecting Defects and Improving the Production Process

2015 ◽  
Vol 1127 ◽  
pp. 23-29
Author(s):  
Eva Rykalová ◽  
Zdeněk Peřina ◽  
Radek Fabian ◽  
Petr Jonšta
Keyword(s):  
Friction And Wear ◽  
Refractory Lining ◽  
Steel Ingot ◽  
Electric Arc ◽  
The State ◽  
Temperature Fields ◽  
Arc Furnace ◽  
Casting And Solidification ◽  
Steel Ingots ◽  
Thermographic Measurement

Infrared radiometric long-waved systems are widely used in various industries as well as in research and development. This long-waved system is the perfect tool for quick diagnosis of the state of the equipment, easy defect detection, which is reflected by higher temperatures due to increased friction and wear. Infrared radiometric long-waved systems are used especially in civil engineering, electrical engineering, metallurgy and many other industries. They are also used to optimize and improve of the production processes. The series of measurements using the infrared radiometric long-waved system in steel plant were carried out due to prepared research project. Images of temperature fields of ladles with liquid steel, cooled exhaust knee of electric arc furnace and ingot mould were obtained during solidification of steel ingot. Information about the state of wear of the refractory lining of the ladle, exhaust knee can be gained from obtained images. The obtained results can be used for more accurate numerical simulations of the process of casting and solidification of steel ingots.

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