碎煤加压气化炉的改进

Transformation of smashed coal pressurized gasifier

为了解决碎煤加压气化炉生产中存在的蒸汽消耗高、污水产量大且处理费用较高的问题,提出了将气化炉产的煤气水通过高压泵送入气化炉的氧化层内,让水汽化吸收一部分热量的改进方案,喷水喷嘴采用耐高温、耐腐蚀、耐磨雾化喷嘴。结果表明:1台碎煤加压气化炉加入煤气水2 t/h,节省3.8 MPa 6 t/h的蒸汽,同时也少产生6 t/h污水,每台气化炉可节省运行费用586元/h,经济效益明显。

The smashed coal pressurized gasifier has lots of disadvantages such as high water vapor consumption,large wastewater discharge which need high handing expenses.To resolve these problems,with the help of high-pressure pump,pump the coal gas water created by gasifier to the oxide layer of gasifier.The gasification of water would absorb part of heat.The water jet nozzle is made of special materials which would resist high-temperature,corrosion and abrasion.The results show that,pumping 2 tons coal gas water to one smashed coal pressurized gasifier per hour would saves 3.8 MPa,6 tons water vapor,generate 6 tons less wastewater,save operation cost 586 yuan.