Design and Study on Coal Slime Drying System with the Low Concentration Coal Bed Methane Regenerative Oxidation
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In order to solve the industrial application difficulty of coal slime in coal mine, and the pollutants exceeding the standard exists in the coal furnace in the current coal slime drying system, by using low concentration coal bed methane (CBM) regenerative oxidation reactor instead of coal furnace to produce the high temperature flue gas and combining with slime drying system, a low concentration coal bed methane regenerative oxidation slime drying system which is applied to coal slime drying is formed. The technical principle of low concentration CBM regenerative oxidation and the technological process of a whole coal slime drying system are introduced. Taking the scale of a single regenerative oxidation reactor which processing capacity is 100,000m3/h as an example, the thermal calculation of the whole coal slime drying system was carried out. The results show that the system can dry coal slime 39t/h and has a large-scale effect.
Low concentration coal bed methane, regenerative oxidation, coal slime drying, thermodynamic calculation