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广西合山电厂是我国利用劣质烟煤发电的最大火力发电厂,全厂现总装机容量为32.5万千瓦(尚在继续扩建中)。锅炉燃用当地的合山煤。该煤品质低,特点是“三高,二低”;即高表面水份(W_(wz)>8％),高灰份(A~y>50％),高硫(S_y=4.5～5％),低挥发份(V_g=10～11％),低发热量(Q_(DW)~y≈2500大卡/公斤左右)。近年来燃用煤质分析见表1。另外,合山煤由于其V_g较低,与烟煤,贫煤相近,其燃烧特性亦与无烟煤,贫煤相
Guangxi Heshan Power Plant is China’s largest thermal power plant that uses inferior bituminous coal for power generation. The whole plant now has a total installed capacity of 325,000 kilowatts (continuing to expand). The boiler burns Heshan coal locally. The quality of the coal is low and is characterized by “three highs and two lows”; that is, high surface moisture (Wz> 8%), high ash %), Low volatility (V_g = 10 ~ 11%), low calorific value (Q_ (DW) ~ y≈2500 kcal / kg or so). In recent years, coal quality analysis in Table 1. In addition, Heshan coal due to its V_g lower, and bituminous coal, lean coal is similar to its combustion characteristics are also anthracite, lean coal phase