The meaning of common indicators of coal quality
1. Moisture symbol: M, unit:%,
2. Ash symbol: A, unit:%,
3. Volatile matter (full name: Volatile matter yield, Volatile matter)
4. Symbol of fixed carbon content: FC, unit:%
V. Total sulfur symbol: St, unit:%
6. Calorific value: Q, unit: J / g (Joule / gram), MJ / kg (Megajoule / kg), customarily also use cal / g (calorie / gram), kcal / kg (kcal / kg );
Seven, the maximum thickness of the colloidal layer (Y)
Eight, bonding index (G)
Nine, coal ash fusion temperature (ash melting point) (℃)
Ten, Hastelloy's Grindable Coefficient (HGI)
Eleven, crucible expansion number (CSN)
Twelve, char characteristics
13. Common benchmarks for coal industry analysis indicators
(1) Air-drying base (abbreviation: air-drying base, formerly called: analytical base)
The symbol of air-drying base: ad refers to: based on coal that has reached equilibrium with air humidity, the results directly measured by the laboratory are generally analysis-based results, such as Mad, Aad, Vad, etc.
(2) Dry basis (abbreviation: dry basis)
Dry basis symbol: d, refers to the coal based on the imaginary anhydrous state, and the dry basis result is converted.
(3) Receiving base (formerly known as: application base)
Received base symbol: ar, which refers to the coal in the received state.
(4) Dry ashless base (formerly known as: combustible base)
Dry ashless base symbol: daf, refers to the coal in the imaginary waterless and ashless state.
GlazeKing Ceramics TechnologyCo.,Ltd. , http://www.maglazekingceramics.com