公开(公告)号：US20020174812A1

公开(公告)日：2002-11-28

申请号：US10106181

申请日：2002-03-26

Applicant: Fuji Electric Co., Ltd.

Inventor： Kouzou Shionoya ,  Yasuyuki Nemoto ,  Banryu Hosokawa ,  Tatsuo Tohyama ,  Naomi Makise ,  Nariharu Kitao ,  Mikio Kurosaki ,  Kazuaki Koshi ,  Sueo Syudo ,  Tetsuichiro Hosokawa

IPC: F23G007/00 ,  F23G005/30

CPC classification number: F23G5/12 ,  F23G5/0273 ,  F23G7/10 ,  F23L1/00 ,  F23L17/005

Abstract: A downdraft gasifier has a gas producer. The gas producer includes an introducing portion provided in an upper portion for introducing solid biomass fuel 4, an air inlet 17 provided in a central portion, a fire grate 14 provided in a lower portion, and a product gas delivery portion provided below the fire grate. In this gasifier, there are provided fire-proofball laid layers in which a plurality of metal balls 15 are disposed in layers on the fire grate substantially uniform, and a preheating unit (such as a burner) for preheating the fire-proof balls. The metal balls 15 are preheated in advance to a predetermined temperature ranging from 500null C. to 800null C. before the solid biomass fuel is introduced into the producer. After that, the solid biomass fuel 4 is introduced into the producer, and gas produced in the producer is delivered from a portion below the fire grate.

Abstract translation: 下降气化炉具有气体生产者。 气体发生器包括设置在上部的导入部分，用于引入固体生物质燃料4，设置在中心部分的进气口17，设置在下部的炉排14，以及设置在炉排下方的产品气体输送部分 。 在该气化器中，设置防火球层，其中多个金属球15分层地布置在炉膛上大体均匀，以及预热单元（例如燃烧器），用于预热防火球。 在将固体生物质燃料引入生产者之前，预先将金属球15预热至500℃至800℃的预定温度。 之后，将固体生物质燃料4引入生产者中，并在生产者中生产的气体从炉膛下方输送。