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1、锅炉尾部的改装该厂#6炉系东德制造的EKM-200吨/时煤粉炉,主要设计参数为: 锅炉出力:D-200吨/时过热蒸汽温度:tgr——535℃＂＂压力:Pgr-98大气压给水温度:tgs——190℃排烟温度:tpy——160℃原尾部受热面由二级省煤器、二级大板式和一级小板式予热器组成。在小板式与工级予热器采用顺流传热。锅炉原设计煤种为可燃质挥发份Vr=43％的褐煤,在燃用挥发份低,水份较高的铜川与焦平混煤(煤质特性见表10)时将出现省煤器受热而过多,予热器受热
1, the rear of the boiler modification The plant # 6 East Germany EKM-200 t / h pulverized coal fired boilers, the main design parameters are: boiler output: D-200 tons / hour overheating steam temperature: tgr - 535 ℃ " Pressure: Pgr-98 Atmospheric pressure Water temperature: tgs - 190 ℃ Exhaust temperature: tpy - 160 ℃ The original tail heating surface consists of two economizers, two large plates and one small plate preheater. Precipitator heat transfer in small plate and grade level. Boiler original design coal is flammable Volatile matter Vr = 43% of lignite, coal combustion in the use of low volatile, high water Tongchuan and Jiao Ping coal (coal properties in Table 10) will appear economizer heat Too much heat to the heater