焦炭或煤Reduction zone干燥区C+02→2CO干馅区CO2 + C2CO还原层汽化区H2O+C-H2+CO氧化层灰渣区OxidezoneC+02C02fixed-bed batch gasifier
fixed-bed batch gasifier Reduction zone C+O2→2CO CO2 + C→2CO H2O+C→H2+CO Oxide zone C+O2→CO2
Advantagesand disadvantagesofbatchgasificationmethodNot use oxygen as gasification, noOOneed air separation deviceProduction process is intermittent, andproduction intensity of gasifier is low
Advantages and disadvantages of batch gasification method Not use oxygen as gasification, no need air separation device. Production process is intermittent, and production intensity of gasifier is low
2.Watergasis prepared byfixed-bedcontinuous gasificationGasification reagents:mixture of steam and oxygenFuel layering is same as that of batch methodThe burning exothermic reactions of carbon withoxygen and the endothermic reactions of carbon withsteam proceed simultaneityThe temperature of various layers in the stove may bestably controlled by regulatingthe ratio of steam tooxygen
Gasification reagents：mixture of steam and oxygen Fuel layering is same as that of batch method The burning exothermic reactions of carbon with oxygen and the endothermic reactions of carbon with steam proceed simultaneity. The temperature of various layers in the stove may be stably controlled by regulating the ratio of steam to oxygen. 2．Water gas is prepared by fixed-bed continuous gasification
CharacteristicsFixed-bed continuous gasification methodThe production capacity is higher,and thepressure is about 2-3MPa, higher pressure isfavorable for methane and CO,productionItis suitableto be used as urban gas
⚫ Fixed-bed continuous gasification method The production capacity is higher, and the pressure is about 2-3MPa, higher pressure is favorable for methane and CO2 production. It is suitable to be used as urban gas. Characteristics
菜锁液分商器便压传动装置接拌器煤分配器回炉碳千燥层洗涤冷却器蒸汽清环冷扫千屋洗涤水气化屋绿烧层丰煤气灰层转动炉算液压传动装置高压蒸汽灰锁胀冷凝器02图5一3鲁奇炉结构示意图1.煤箱2.分布器3.水夹套4灰箱5.洗涤器
图5－3 鲁奇炉结构示意图 1.煤箱 2.分布器 3.水夹套 4. 灰箱 5.洗涤器