Regulating the readiness of the coke cake. [Magnitogorsk Integrated Iron and Steel Works-USSR]
To develop a method of selecting the heating temperatures, the temperature field in the oven was calculated by means of nonstationary differential equations. These parameters were included: the thermophysical characteristics of the coal charge, its moisture and density, the dimensions of the oven, the heating rate, the temperature of the heating flues, the final coking temperature, and the coking time. The results were analyzed on a digital computer. Using a battery with ovens 407 mm wide a charge is coked with moisture of 8% and bulk density of 860 kg/m/sup 3/. At a coking time of 14 h 30 min coke readiness is provided at a heating temperature of 1344/sup 0/C. With a decrease in the charge density to 830 kg/m/sup 3/ the same coke readiness is provided by a temperature of 1334/sup 0/C. The transition from the mean temperatures to the temperatures in the control flues is accomplished using a temperature difference between the coke and pusher sides of the battery of 40/sup 0/C. The proposed method of correcting the coking temperature regime has been adopted for use in all coke batteries.
- OSTI ID:
- 6334093
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 12; ISSN COKCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010401* -- Coal & Coal Products-- Carbonization-- (-1987)
010500 -- Coal
Lignite
& Peat-- Products & By-Products
BULK DENSITY
CARBONACEOUS MATERIALS
CARBONIZATION
CHARGE DENSITY
CHEMICAL REACTIONS
COAL
COKE OVENS
COKING
COKING PLANTS
COMPUTERS
CONTROL
DATA
DATA ANALYSIS
DECOMPOSITION
DENSITY
DIAGRAMS
DIFFERENTIAL EQUATIONS
DIGITAL COMPUTERS
DIMENSIONS
ENERGY SOURCES
EQUATIONS
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
HEATING RATE
INDUSTRIAL PLANTS
INDUSTRY
INFORMATION
MATERIALS
MATHEMATICAL MODELS
METAL INDUSTRY
MOISTURE
MONITORING
NOMOGRAMS
NUMERICAL DATA
PHYSICAL PROPERTIES
TEMPERATURE CONTROL
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
VERY HIGH TEMPERATURE