Anthracite AC (6-13 mm)
Coal-anthracite of the AC brand (anthracite-seed), fraction 6-13 mm. ASH grade anthracite coal (anthracite-shtyb), fraction 0-6 mm. Coal-anthracite of the AO brand (anthracite-nut), fraction 25-50 mm. Coal-anthracite of the AK brand (anthracite is large), a fraction of 50-100 mm.
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Technical Specification: Anthracite AC grade coal (6-13 mm)
1. Particle sizes:
- Size range: 6-13 mm.
- The particle size distribution should correspond to the following values:
- The proportion of particles with a size of 6-10 mm: at least 80%
- The proportion of particles with a size of 10-13 mm: no more than 20%
2. Physical properties:
- Density: at least 1.35 g/cm3.
- Compressive strength: at least 7 MPa.
- Humidity: no more than 3%.
- Porosity: at least 45%.
3. Chemical composition:
- Ash content: no more than 5%.
- Sulfur content: not more than 0.8%.
- Volatile matter content: no more than 6%.
4. Thermal properties:
- Heat of combustion: at least 27 MJ/kg.
- Softening temperature: at least 1450°C.
5. Certification:
- The products are certified in accordance with local and international coal quality standards.
Note: This specification is provided as an example and can be adapted to meet specific customer requirements or quality standards.
1. Particle sizes:
- Size range: 6-13 mm.
- The particle size distribution should correspond to the following values:
- The proportion of particles with a size of 6-10 mm: at least 80%
- The proportion of particles with a size of 10-13 mm: no more than 20%
2. Physical properties:
- Density: at least 1.35 g/cm3.
- Compressive strength: at least 7 MPa.
- Humidity: no more than 3%.
- Porosity: at least 45%.
3. Chemical composition:
- Ash content: no more than 5%.
- Sulfur content: not more than 0.8%.
- Volatile matter content: no more than 6%.
4. Thermal properties:
- Heat of combustion: at least 27 MJ/kg.
- Softening temperature: at least 1450°C.
5. Certification:
- The products are certified in accordance with local and international coal quality standards.
Note: This specification is provided as an example and can be adapted to meet specific customer requirements or quality standards.