Optimizing charge size analyses to maximize bulk density
Commercial trials have shown that for the coals currently supplied to the works the optimum degree of charge crushing is 76-77 percent below 3 mm. This increases the coke-oven output and leaves the coke quality at its former level. The use of stamped sieves instead of barred gratings in hammer crushers handling gas coals brings about a substantial improvement in their performance. The commercial adoption of a rational crushing scheme based on crushing each coal in the blend only to the degree necessary leads to a reduced crushing load and optimizes the size analysis of the charge for high bulk density without lowering coke quality. Two crushers have been shut down, reducing the over-all motor rating by 1050 kW. By introducing this rational coal-preparation scheme and optimizing the size analysis of the charge, savings of 790,000 roubles/year are being made at the Krivoi Rog Works.
- OSTI ID:
- 6813602
- Journal Information:
- Coke Chem., USSR (Engl. Transl.); (United States), Vol. 7; Other Information: Translated from Koks Khim.; No. 7, 4-6(1976)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL
CARBONIZATION
CRUSHING
COKE OVENS
OPERATION
COAL PREPARATION
DENSITY
MIXING
OPTIMIZATION
SCREENS
USSR
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COMMINUTION
DECOMPOSITION
ENERGY SOURCES
EUROPE
FOSSIL FUELS
FUELS
PHYSICAL PROPERTIES
010401* - Coal & Coal Products- Carbonization- (-1987)