Foundry coke
Category
产品名称： Foundry coke
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Category:
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Indicator |
Level |
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Special Grade |
Level 1 |
Level 2 |
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Block size, mm |
>80 80–60 >60 |
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Moisture Mad, % |
≤5.0 |
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Ash content Ad, % |
≤8.00 |
8.01–10.00 |
10:01–12:00 |
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Volatile matter Vdaf, % |
≤1.5 |
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Sulfur content St.d, % |
≤0.60 |
≤0.80 |
≤0.80 |
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Drum strength M40, % |
≥85.0 |
≥81.0 |
≥77.0 |
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Drop intensity SI504% |
≥92.0 |
≥88.0 |
≥84.0 |
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Apparent porosity Ps, % |
≤40.0 |
≤45.0 |
≤45.0 |
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Crushed coke rate (<40 mm), % |
≤4.0 |
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Blast furnace coke
Bituminous coal, when heated to 950–1050°C in the absence of air, undergoes stages such as drying, pyrolysis, melting, coking, solidification, and shrinkage, ultimately producing coke. This process is known as high‑temperature coking (high‑temperature dry distillation). Since over 90% of metallurgical coke is used in blast furnaces for ironmaking, blast furnace coke is often referred to simply as metallurgical coke. According to particle size, it is classified into 60–80 mm, 40–60 mm, 25–40 mm, 10–25 mm, and <10 mm.
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