公开(公告)号：US5042400A

公开(公告)日：1991-08-27

申请号：US469097

申请日：1990-01-24

申请人： Michiro Shiraha ,  Kenji Mori ,  Shingo Suzuya ,  Eiichi Harada

发明人： Michiro Shiraha ,  Kenji Mori ,  Shingo Suzuya ,  Eiichi Harada

IPC分类号： C10J3/46 ,  C10J3/48 ,  F23C3/00 ,  F23C6/04 ,  F23J1/08

CPC分类号： C10J3/487 ,  C10J3/66 ,  F23C3/008 ,  F23C6/04 ,  F23J1/08 ,  C10J2200/152 ,  C10J2300/093 ,  C10J2300/1223

摘要： A first-stage furnace for partial combustion of solid fuel and oxidizer gas to generate inflammable exhaust gases which are passed to a secondary-stage furnace is shown. The first-stage furnace comprises a vertical pre-combustion chamber and a likewise cylindrical main combustion chamber mounted in horizontal position, connected downstream of the pre-combustion chamber through a tangential connecting passage. The air-fuel mixture introduced into the pre-combustion chamber is given swirling motion and burned at a temperature that converts the mixture to a mix of incompletely burned fuel particles, exhaust gases and non-combustible products in molten state. The mix stream into the tangential passage into the main combustion chamber develops into a high-velocity vortex, with the molten slag being centrifuged onto the inner wall of the main combustion chamber to form a film which is extracted out through a tapping port. Thus, the inflammable gases generated are free from non-combustible products such as ash, and conveyed to the secondary-stage furnace, through the gas transport duct.