公开(公告)号：EP1522789A2

公开(公告)日：2005-04-13

申请号：EP04029905.9

申请日：1999-03-25

申请人： Mitsubishi Heavy Industries, Ltd.

发明人： Kitta, Takehiro, Yokohama R&D Cr. ,  Takuma, Masao, Yokohama R&D Cr. ,  Honda, Hiroki, Yokohama R&D Cr. ,  Ose, Kimitoshi, Yokohama Dockyard & Mach., Wrks ,  Sato, Tetsuo, Yokohama Dockyard & Mach., Wrks ,  Ishikawa, Izuru, Yokohama R&D Cr. ,  Shibata, Kenichi, Yokohama Dockyard & Mach., Wrks ,  Noma, Akira, Yokohama R&D Cr.

IPC分类号： F23G5/44 ,  F23G5/00 ,  F23J1/08

CPC分类号： C03B5/005 ,  C03B5/2353 ,  C21B3/04 ,  F23G5/00 ,  F23G5/085 ,  F23G5/444 ,  F23G5/50 ,  F23G2202/104 ,  F23G2202/20 ,  F23G2203/101 ,  F23G2204/103 ,  F23G2205/10 ,  F23G2205/121 ,  F23G2207/1015 ,  F23G2209/30 ,  F23G2900/50004 ,  F23G2900/55005 ,  F23J1/00 ,  F23J1/08 ,  F23J2900/01001 ,  F23J2900/01007 ,  F23N2029/20 ,  F27B17/00 ,  F27D3/0033 ,  F27D3/04 ,  F27D3/08 ,  F27D15/00 ,  F27D19/00 ,  F27D21/02 ,  F27D99/0033 ,  F27D2019/004 ,  F27D2019/0043 ,  Y02E20/344 ,  Y02P10/34 ,  Y02P40/52 ,  Y02P40/55 ,  Y02W30/542

摘要： Disclosed is an ash-melting furnace which can respond to fluctuations in the load and is capable of highly efficient and stable operation. In an ash-melting furnace which heats and melts primary ash (ash containing rough particles) and fly ash (ash containing minute particles) obtained by combustion together, the primary ash is supplied from an upper end of the furnace to form an upper layer of a two-tiered layer of ash, and the fly ash is supplied from the upper end of the furnace to form a lower layer of a two-tiered layer of ash. The two-tiered layer together is moved towards the far end of the furnace, and is heated and melted by a burner (10) to form molten slugs (25a) during the moving step. When the burner is an oxygen-enriched burner, this configuration makes it possible to control the volume of oxygen to be added to the burner air (including changing the density of the oxygen). This invention can control not only the volume of fuel but also the density of the oxygen-enriched air and the volume of the ash to be supplied in response to the state of flow of the molten ash melted by the oxygen-enriched burner.

摘要翻译： 本发明公开了一种灰熔化炉，其能够响应负载的波动并且能够高效稳定地运行。 在将通过一起燃烧而得到的一次灰分（含有粗颗粒的灰分）和飞灰（含有微小颗粒的灰分）加热熔融的灰熔融炉中，从炉子的上端供给一次灰分，形成上层 两层灰分，并且从炉子的上端供应飞灰以形成灰层的双层层的下层。 两层层一起朝向炉子的远端移动，并且在移动步骤期间通过燃烧器（10）加热和熔化以形成熔融块（25a）。 当燃烧器是富氧燃烧器时，这种结构可以控制添加到燃烧器空气中的氧气的体积（包括改变氧气的密度）。 本发明不仅可以控制燃料的体积，而且可以控制富氧空气的密度以及响应于由富氧燃烧器熔化的熔融灰流的状态而供应的灰的体积。