Using the undersizes of Karaganda coals in coking charges
The requirements for coking coals have increased considerably in the Karaganda basin in connection with starting up the Vostochaya Central Concentrating Mill and coal treatment plant No. 2 of the Karaganda Metallurgical Complex, as well as in connection with the increase in the use of Karaganda coking coals which has taken place at the plants in the Ural and Ukraine regions. The problem of expanding the source of raw materials is of current interest due to the involvement of Karaganda coals with a high ash content in the charge. In this connection, undersizes of the fine classes of Karaganda coals presently used to meet energy needs are of considerable interest. This paper discusses how an undersize of types K and K2 Karaganda coals can be used in determined amounts in the coking charges of the Karaganda Metallurgical Complex. When the amount of type KZh coals in a charges is decreased (less than or equal to 50%), the percentage of coal undersizes from the Karaganda mine must be no more than 5% due to their inferior agglutinating power. When the content of type KZh coal is 55% or more, the percentage of coal undersizes from the Karaganda mine can be increased to 7%. Coal undersizes from the 50th Anniversary of the October Revolution mine possess a higher agglutinating power than those from the Karaganda mine. However, it is not advisable to feed them into a coking charge in an amount surpassing 5% at the present time due to the higher ash content.
- Research Organization:
- Karaganda Metallurgical Complex
- OSTI ID:
- 5295588
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Vol. 7
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
COAL
COKING
MIXING
COAL FINES
ASH CONTENT
COAL MINES
COAL PREPARATION
COAL PREPARATION PLANTS
PARTICLE SIZE
UKRAINIAN SSR
URALS
ASIA
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL REACTIONS
DECOMPOSITION
EASTERN EUROPE
ENERGY SOURCES
EUROPE
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
MATERIALS
MINES
MOUNTAINS
SIZE
UNDERGROUND FACILITIES
USSR
013000* - Coal
Lignite
& Peat- Transport
Handling
& Storage
010401 - Coal & Coal Products- Carbonization- (-1987)