Tell me the trouble which the coal index English code in this format please tell me - - water - ash volatile sulfur - fixed carbon - coke slag characteristics of heat - Requirements: the last edition of the new national standard GB and best can mark up compared with the old standard, the new national standard is different, in the measurement and as a way of testing, please inform. .
Coal five common indicators for you to do reference.The first indicator: moisture.The moisture in coal is divided into internal water, external water, crystal water and water.The water is too large, is not conducive to processing, transportation, combustion will affect the thermal stability and thermal conduction, coking will reduce the coke yield and extend the coking cycle.
Now we often report the moisture index:1, all water (Mt), is the sum of all the internal moisture and external moisture in coal, also commonly used Mar. Usually below 8%.2, air dry base moisture (Mad), refers to the coal in the air dry state containing water. Can also be considered to be internal moisture, the old national standard has called the "analysis of water base".
Air dried base volatile (Vad), dry base volatile matter (Vd), dry ash free volatile matter (Vdaf) and base volatile (Var).Air dried base ash (Aad), dry base ash (Ad), received base ash (Aar).Air dried base all sulfur (St, AD), dry base full sulfur (St.d) and received base sulfur (St, AR).
