专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

DE3273996D1 METHODS FOR MELTING AND REFINING A POWDERY ORE CONTAINING METAL OXIDES AND APPARATUSES FOR MELT-REFINING SAID ORE 未知
公开(公告)号：DE3273996D1
公开(公告)日：1986-12-04
申请号：DE3273996
申请日：1982-04-22
申请人： KAWASAKI STEEL CO
发明人： HAMADA TAKAO , TSUCHIYA NOBUO , KATAYAMA EIJI , KOITABASHI TOSHIMITSU , OKABE KYOJI , SUMITO MITSUO , TAKADA YOSHIYASU , INATANI TOSHIHIRO
IPC分类号： C21B13/00 , C21B13/14 , C22B5/18
摘要： A powdery or fine granular ore containing metal oxides is melted and refined by charging said ore and a part of a reducing gas discharged from a vertical type of melting and reducing furnace into a fluidized bed type of preliminary reducing furnace to preliminarily reduce said ore therein, charging the preliminarily reduced ore heated at a high temperature into the above described melting and reducing furnace and melting and reducing said ore by using a carbonaceous solid reducing agent and air or oxygen rich air heated at a high temperature and discharging the molten metal and the molten slag from the melting and reducing furnace. By using the preliminary reduction step, the pretreatment of the powdery or fine granular ore containing metal oxides, such as formation into pellets, sintered ores, briquets and the like can be omitted.

2. 发明专利

PH26062A Method for melting and refining a powdery ore containing metal oxides and apparatus for melting said ore 未知
公开(公告)号：PH26062A
公开(公告)日：1992-01-29
申请号：PH35514
申请日：1987-06-07
申请人： KAWASAKI STEEL CO
发明人： HAMADA TAKAO , TSUCHIYA NOBUO , INATANI TOSHIHIRO , OKABE KYOJI , SUMITO MITSUO , TAKADA YOSHIYASU , KATAYAMA EIJI , KOITABASHI TOSHIMITSU
IPC分类号： C22B1/14

3. 发明专利

GB2109819B A METHOD FOR PRODUCING FE-B MOLTEN METAL] 未知
公开(公告)号：GB2109819B
公开(公告)日：1985-06-19
申请号：GB8221086
申请日：1982-07-21
申请人： KAWASAKI STEEL CO
发明人： HAMADA TAKAO , TSUCHIYA NOBUO , INATANI TOSHIHIRO , TAKADA YOSHIYASU , SUMITO MITSUO , KATAYAMA EIJI , KOITABASHI TOSHIMITSU , OKABE KYOJI , ITO YO
IPC分类号： C21B5/02 , C21B11/02 , C22C33/00 , C22C33/04 , C22C38/00 , C21B13/02
摘要： Fe-B molten metal for producing amorphous alloys are produced in a low cost by using a vertical furnace wherein beds packed with a carbonaceous solid reducing agent are formed and two or three stages of tuyeres are provided in the lower portion of said furnace, feeding a preliminarily reduced powdery iron ore into the furnace through the upper stage of tuyeres together with hot air and feeding boron oxide or boric acid into the furnace through the lower stage of tuyeres together with hot air and, if necessary blowing hot air into the furnace through the lowest stage of tuyeres. In stead of the above described vertical furnace, a usual blast furnace provided with one or two stages of tuyeres at the lower portion of said furnace is used. In this case, sintered iron ore, pellet-formed iron ore or lump iron ore is fed from the top of the furnace and powdery boron oxide or boric acid is fed through the tuyeres.

4. 发明专利

AU8285482A REDUCTION OF POWDERY OXIDE ORES TO METAL 未知
公开(公告)号：AU8285482A
公开(公告)日：1982-12-23
申请号：AU8285482
申请日：1982-04-20
申请人： KAWASAKI STEEL CO
发明人： HAMADA TAKAO , TSUCHIYA NOBUO , INATANI TOSHIHIRO , KATAYAMA EIJI , KOITABASHI TOSHIMITSU , OKABE KYOJI , SUMITO MITSUO , TAKADA YOSHIYASU
IPC分类号： C22B23/02 , C21B11/02 , C21B13/00 , C21B13/14 , C22B34/00 , C22B47/00 , C21B5/00 , C21B7/00 , C21B7/16 , C22B1/02 , C22B1/10 , C22B1/14 , C22B5/10 , F27B1/00 , F27B1/02 , F27B1/16 , F27B1/20 , F27B15/00 , F27B19/02 , F27B19/04 , F27D3/18

5. 发明专利

DE3228593A1 未知
公开(公告)号：DE3228593A1
公开(公告)日：1983-06-01
申请号：DE3228593
申请日：1982-07-30
申请人： KAWASAKI STEEL CO
发明人： HAMADA TAKAO , TSUCHIYA NOBUO , INATANI TOSHIHIRO , TAKADA YOSHIYASU , SUMITO MITSUO , KATAYAMA EIJI , KOITABASHI TOSHIMITSU , OKABE KYOJI , ITO YO
IPC分类号： C21B5/02 , C21B11/02 , C22C33/00 , C22C33/04 , C21B13/02
摘要： Fe-B molten metal for producing amorphous alloys are produced in a low cost by using a vertical furnace wherein beds packed with a carbonaceous solid reducing agent are formed and two or three stages of tuyeres are provided in the lower portion of said furnace, feeding a preliminarily reduced powdery iron ore into the furnace through the upper stage of tuyeres together with hot air and feeding boron oxide or boric acid into the furnace through the lower stage of tuyeres together with hot air and, if necessary blowing hot air into the furnace through the lowest stage of tuyeres. In stead of the above described vertical furnace, a usual blast furnace provided with one or two stages of tuyeres at the lower portion of said furnace is used. In this case, sintered iron ore, pellet-formed iron ore or lump iron ore is fed from the top of the furnace and powdery boron oxide or boric acid is fed through the tuyeres.

6. 发明专利

AU534503B2 REDUCTION OF POWDERY OXIDE ORES TO METAL 未知
公开(公告)号：AU534503B2
公开(公告)日：1984-02-02
申请号：AU8285482
申请日：1982-04-20
申请人： KAWASAKI STEEL CO
发明人： HAMADA TAKAO , TSUCHIYA NOBUO , INATANI TOSHIHIRO , KATAYAMA EIJI , KOITABASHI TOSHIMITSU , OKABE KYOJI , SUMITO MITSUO , TAKADA YOSHIYASU
IPC分类号： C22B23/02 , C21B11/02 , C21B13/00 , C21B13/14 , C22B34/00 , C22B47/00 , C21B5/00 , C21B7/00 , C21B7/16 , C22B1/02 , C22B1/10 , C22B1/14 , C22B5/10 , F27B1/00 , F27B1/02 , F27B1/16 , F27B1/20 , F27B15/00 , F27B19/02 , F27B19/04 , F27D3/18

7. 发明专利

GB2109819A A METHOD FOR PRODUCING FE-B MOLTEN METAL] 未知
公开(公告)号：GB2109819A
公开(公告)日：1983-06-08
申请号：GB8221086
申请日：1982-07-21
申请人： KAWASAKI STEEL CO
发明人： HAMADA TAKAO , TSUCHIYA NOBUO , INATANI TOSHIHIRO , TAKADA YOSHIYASU , SUMITO MITSUO , KATAYAMA EIJI , KOITABASHI TOSHIMITSU , OKABE KYOJI , ITO YO
IPC分类号： C21B5/02 , C21B11/02 , C22C33/00 , C22C33/04 , C22C38/00 , C21B13/02
摘要： Fe-B molten metal for producing amorphous alloys are produced in a low cost by using a vertical furnace wherein beds packed with a carbonaceous solid reducing agent are formed and two or three stages of tuyeres are provided in the lower portion of said furnace, feeding a preliminarily reduced powdery iron ore into the furnace through the upper stage of tuyeres together with hot air and feeding boron oxide or boric acid into the furnace through the lower stage of tuyeres together with hot air and, if necessary blowing hot air into the furnace through the lowest stage of tuyeres. In stead of the above described vertical furnace, a usual blast furnace provided with one or two stages of tuyeres at the lower portion of said furnace is used. In this case, sintered iron ore, pellet-formed iron ore or lump iron ore is fed from the top of the furnace and powdery boron oxide or boric acid is fed through the tuyeres.

8. 发明专利

JP2000282457A BASE FOR STEEL PIPE PILE 失效
公开(公告)号：JP2000282457A
公开(公告)日：2000-10-10
申请号：JP8666999
申请日：1999-03-29
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA EIJI , MATSUNAGA SATOSHI , IMASHIO HIROYUKI , SHIODA KEISUKE
IPC分类号： E02D5/24 , E02D27/12
摘要： PROBLEM TO BE SOLVED: To ensure transmission of a uniform stress between a pile and an upper frame structure without using a reinforcing rib by extending an upper surface of a pile from the whole circumference of outer diameter surface of head of the pile to a sideward direction over the outer diameter of the head of the pile by a specified length or more, and specifying the thickness of wall of abutting part of fitting part of the upper frame structure. SOLUTION: An extending amount of a pile 2 from the outer circumference of a head thereof is made 100 mm or more from an outer diameter D of an upper part of the pile 2, on the whole circumference. The plate thickness of a base 1 is set to have a minimum value H2 of not less than 75 mm, and the base 1 is fomed by machining a steel plate or made of cast steel. A part or the whole positioned in a circle with a smaller radius by 100 mm than a radius of an outer diamter surface of the pile 2 is opened with a thin wall or upward/downward. In this case, the base 1 is used as a connection member, and even if there is a horizontal eccentricity between the head of th pile 2 and the fitting steel pipe 3 the connection between the two 2, 3 are made possible without using a reinforcing member. Accordingly, on-site welding is reduced than a conventional method, thereby reducing the work period and cost, as well as reducing the amount of on-site welding resulting in improvement of quality in the connection part.

9. 发明专利

JP2000204505A WIDENED ROAD AND ITS EXECUTION METHOD 失效
公开(公告)号：JP2000204505A
公开(公告)日：2000-07-25
申请号：JP502299
申请日：1999-01-12
申请人： KAWASAKI STEEL CO
发明人： KATAYAMA EIJI , SAKA HIROMITSU , SHIODA KEISUKE
IPC分类号： E01C1/00
摘要： PROBLEM TO BE SOLVED: To provide a road, which is executed comparatively simply and which has high strength. SOLUTION: The road, in which the road width of an existing road built on the slope of a mountainous section or the like is widened towards the valley side, is composed of a plurality of concrete foundations arranged to the valley- side end section of the existing road at intervals along the existing road and at least one foundation piles driven in response to the quantity of widening at every concrete foundation. The road is constituted of transverse panel point girders connecting mutual concrete foundations and foundation piles among these foundations and piles, longitudinal panel point girders stretched to each of the mutually adjacent concrete foundations and foundation piles and a floor slab installed onto the transverse and longitudinal panel point girders.

10. 发明专利

JPH046765B2 失效
公开(公告)号：JPH046765B2
公开(公告)日：1992-02-06
申请号：JP29669986
申请日：1986-12-15
申请人： KAWASAKI STEEL CO
发明人： ITAYA HIROSHI , KATAYAMA EIJI , HAMADA HISAO , SATO KAZUHIKO , TAKEUCHI SHINOBU
IPC分类号： C21B11/02 , C21B13/00 , C21B13/02

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式