Coal Quality Characteristics in Mazhuangqiao of Puyang City

The mining field is situated in the joint part of Neihuang bulge and Dongming hollow of north China depression, and belongs to Kaifeng coal-forming district. The coal-bearing strata is Permo-carboniferous, including 13 coal-bearing layers, among which 5 are minable; 2₁ coal layer is the primary minable coalbed, 2₀², 1₄², 1₄¹ and 1₁¹ coal layer are secondary minable coalbed. 2₁ and 2₀² coal layers are low ash, super-low and low sulfur, low phosphorus, medium fixed carbon, strong cohesiveness, super and high calorific value, better dressing; they belong to 1/3 coking and full coking coal, and can be used as coal blending of coking skeleton and the main coking coal. 1₄², 1₄¹ and 1₁¹ coal are medium ash, medium and high sulfur, super-low and low phosphorus, medium fixed carbon, super-strong cohesiveness, high and super-high calorific value, respectively belong to low dressing 1/3 coking coal, medium dressing fat coal and full coking coal, which can be used as a general power coal as well as in coking blending.