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Prediction of vertical expansion pressure stresses in coke oven heating walls

Journal Article:

Abstract

The paper describes an accurate method developed by Krupp Koppers for calculating stresses in the central areas of coke oven heating walls. The results of this calculation model have provided the following conclusions for the design of coke ovens: 1) a rising pre-stressing of the heating walls caused by the weight of the top deck of the coke oven leads - compared with the stress limits of W. Ahlers - to lower permissible expansion pressures. 2) A given heating wall width has its corresponding maximum feasible oven height. Heating wall width and top deck weight are not interchangeable parameters. 3) The dependence of the permissible expansion pressure on the stretcher brick thickness should not be overlooked. Stretcher brick thicknesses of under 90 mm are not recomended for tall ovens and heavily swelling coal. 4) The capacity of mortar to absorb tensile stresses is ultimately an undesirable property, because the stresses at the points where the mortar is not holding are higher than in a straightforward stretch of brickwork.
Publication Date:
Aug 01, 1987
Product Type:
Journal Article
Reference Number:
CLA-87-000127; EDB-87-167183
Resource Relation:
Journal Name: Glueckauf-Forschungsh.; (Germany, Federal Republic of); Journal Volume: 48:4
Subject:
01 COAL, LIGNITE, AND PEAT; COKE OVENS; DESIGN; WALLS; STRESS ANALYSIS; BRICKS; DIMENSIONS; FORECASTING; HEIGHT; LIMITING VALUES; MATHEMATICAL MODELS; MORTARS; PRESSURE EFFECTS; RECOMMENDATIONS; STRESSES; TENSILE PROPERTIES; THERMAL EXPANSION; THICKNESS; WEIGHT; WIDTH; BUILDING MATERIALS; EXPANSION; MATERIALS; MECHANICAL PROPERTIES; 010409* - Coal, Lignite, & Peat- Pyrolysis & Carbonization- (1987-)
OSTI ID:
5948295
Research Organizations:
Krupp Koppers GmbH (Germany, F.R.)
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Journal ID: CODEN: GKFRA
Submitting Site:
CLA
Size:
Pages: 208-213
Announcement Date:

Journal Article:

Citation Formats

Duerselen, H, and Janicka, J. Prediction of vertical expansion pressure stresses in coke oven heating walls. Germany: N. p., 1987. Web.
Duerselen, H, & Janicka, J. Prediction of vertical expansion pressure stresses in coke oven heating walls. Germany.
Duerselen, H, and Janicka, J. 1987. "Prediction of vertical expansion pressure stresses in coke oven heating walls." Germany.
@misc{etde_5948295,
title = {Prediction of vertical expansion pressure stresses in coke oven heating walls}
author = {Duerselen, H, and Janicka, J}
abstractNote = {The paper describes an accurate method developed by Krupp Koppers for calculating stresses in the central areas of coke oven heating walls. The results of this calculation model have provided the following conclusions for the design of coke ovens: 1) a rising pre-stressing of the heating walls caused by the weight of the top deck of the coke oven leads - compared with the stress limits of W. Ahlers - to lower permissible expansion pressures. 2) A given heating wall width has its corresponding maximum feasible oven height. Heating wall width and top deck weight are not interchangeable parameters. 3) The dependence of the permissible expansion pressure on the stretcher brick thickness should not be overlooked. Stretcher brick thicknesses of under 90 mm are not recomended for tall ovens and heavily swelling coal. 4) The capacity of mortar to absorb tensile stresses is ultimately an undesirable property, because the stresses at the points where the mortar is not holding are higher than in a straightforward stretch of brickwork.}
journal = {Glueckauf-Forschungsh.; (Germany, Federal Republic of)}
volume = {48:4}
journal type = {AC}
place = {Germany}
year = {1987}
month = {Aug}
}