Research on coke-oven heating technology and the properties of coke as a blast-furnace fuel. [UKhIN]
A fundamentally novel coke-oven system was designed at Giprokoks (underjet, with bottom gas and air regulation) on the basis of data from model experiments. In particular, when batteries of 41.6 m/sup 3/ coke ovens were developed, the results of model tests led to major modifications to the original designs for the regenerator zones, sloping ducts and flues. UKhIN investigations on hot and hydraulic models, using modern mathematical procedures and computers, were used to study the details of heat exchange and gas flow in the regenerator packings under coke ovens. Criterial equations were derived for the coefficients of heat transfer by convection and of hydraulic resistance, covering the specific features of regenerator performance in coke-oven heating systems. Much useful information for the advance of coke-oven technology has been obtained from laboratory, pilot and fullscale plant studies of the thermal properties of coals and blends. Investigations (including blast-furnace trials) in connection with the commercial adoption of dry coke cooling established that during its soaking in the storage chamber the coke undergoes changes in molecular structure, to an extent dependent on the time and temperature. Recommendations based on this research significantly improve the coke strength properties and extended the range of usable coal supplies. Traditionally, the Institute is greatly interested in the problem of coke yields, which has now become very urgent in connection with the use of higher proportions of grade G and other coals with high volatile matters. Detailed studies have been made of the effects of various processing factors on the yields of saleable and metallurgical coke.
- OSTI ID:
- 5648031
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Vol. 6; Other Information: Translated from Koks Khim.; No. 6, 12-15(1980)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL
COMPARATIVE EVALUATIONS
COKE
QUENCHING
TESTING
YIELDS
COKE OVENS
DESIGN
FUNCTIONAL MODELS
MATHEMATICAL MODELS
RESEARCH PROGRAMS
HEAT TRANSFER
HEATING SYSTEMS
REFRACTORIES
SIZE
USSR
ASIA
CARBONACEOUS MATERIALS
EASTERN EUROPE
ENERGY SOURCES
ENERGY SYSTEMS
ENERGY TRANSFER
EUROPE
FOSSIL FUELS
FUELS
MATERIALS
010401* - Coal & Coal Products- Carbonization- (-1987)