公开(公告)号：US4168968A

公开(公告)日：1979-09-25

申请号：US810766

申请日：1977-06-28

申请人： Isao Udo ,  Tatsuya Kai ,  Masahiro Kuwashiro

发明人： Isao Udo ,  Tatsuya Kai ,  Masahiro Kuwashiro

IPC分类号： C21C5/52 ,  C21C7/10

CPC分类号： C21C5/5217 ,  Y02P10/216

摘要： A cold charge of steel scrap is melt cut and melted in an arc furnace provided with special oxygen-fuel burners by which rapid melting is promoted, the interior of the furnace being maintained under negative pressure by a fume evacuation and filtration means thereby to draw in secondary air from the outside atmosphere and, moreover, to increase the burner combustion efficiency. The arc furnace is provided with water cooling devices including a water-cooled ring, carbonaceous bricks, high-alumina ramming masses, and burner tiles in parts of the furnace wall and roof, particularly at wall parts where the burners are mounted, the wall above the slag line, and a roof part where an exhaust gas outlet is formed.

摘要翻译： 在具有特殊的氧燃料燃烧器的电弧炉中熔融切断并冷却废钢，由此快速熔化，通过排烟和过滤装置将炉内保持在负压下，从而吸入 来自外部大气的二次空气，并且还增加了燃烧器的燃烧效率。 电弧炉在炉壁和屋顶的一部分，特别是在安装燃烧器的壁部分上设置有水冷却环，碳质砖，高铝捣打块和燃烧器砖的水冷装置，上面的壁 渣线和形成废气出口的屋顶部分。

公开(公告)号：US4526531A

公开(公告)日：1985-07-02

申请号：US501243

申请日：1983-06-06

申请人： Tatsuya Kai

发明人： Tatsuya Kai

IPC分类号： C21C5/52 ,  F23C5/02 ,  F27B3/20 ,  F27D99/00 ,  F23C5/06

CPC分类号： F27D99/0033 ,  C21C5/5217 ,  F23C5/02 ,  F27B3/20 ,  Y02P10/216

摘要： A burner apparatus for a smelting furnace comprising a burner body having a tip insertable into and withdrawable from a burner inserting bore in the wall of the furnace, a seal bar insertable into and withdrawable from the bore for closing the bore, shifting means for alternatively positioning the tip or the seal bar in alignment with the bore, and means for driving the tip and the seal bar into and out of the bore. When the burner is not used for auxiliary combustion, the seal bar is inserted into the bore to prevent the bore and the burner nozzles from clogging with splashes of molten metal and slag.

摘要翻译： 一种用于冶炼炉的燃烧器装置，包括一个燃烧器主体，该燃烧器主体具有可插入和从燃烧器壁中的燃烧器插入孔中抽出的尖端，可插入并可从该孔中抽出以封闭该孔的转换装置， 尖端或密封条与孔对齐，以及用于将尖端和密封杆驱动进入和离开孔的装置。 当燃烧器不用于辅助燃烧时，密封杆插入孔中，以防止孔和燃烧器喷嘴被熔融金属和炉渣溅起而堵塞。

公开(公告)号：US4077614A

公开(公告)日：1978-03-07

申请号：US742137

申请日：1976-11-10

申请人： Isao Udo ,  Tatsuya Kai ,  Masahiro Kuwashiro

发明人： Isao Udo ,  Tatsuya Kai ,  Masahiro Kuwashiro

IPC分类号： C21C5/52 ,  C21C5/56 ,  F27D1/12 ,  F27D9/00 ,  C21C7/00

CPC分类号： F27D1/12 ,  C21C5/5217 ,  C21C5/562 ,  F27D2009/004 ,  Y02P10/216

摘要： A cold charge of steel scrap is melt cut and melted in an arc furnace provided with special oxygen-fuel burners by which rapid melting is promoted, the interior of the furnace being maintained under negative pressure by a fume evacuation and filtration means thereby to draw in secondary air from the outside atmosphere and, moreover, to increase the burner combustion efficiency. The arc furnace is provided with water cooling devices including a water-cooled ring, carbonaceous bricks, high-alumina ramming masses, and burner tiles in parts of the furnace wall and roof, particularly at wall parts where the burners are mounted, the wall above the slag line, and a roof part where an exhaust gas outlet is formed.

摘要翻译： 在具有特殊的氧燃料燃烧器的电弧炉中熔融切断并冷却废钢，由此快速熔化，通过排烟和过滤装置将炉内保持在负压下，从而吸入 来自外部大气的二次空气，并且还增加了燃烧器的燃烧效率。 电弧炉在炉壁和屋顶的一部分，特别是在安装燃烧器的壁部分上设置有水冷却环，碳质砖，高铝捣打块和燃烧器砖的水冷装置，上面的壁 渣线和形成废气出口的屋顶部分。