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

JPH0527582B2 失效
公开(公告)号：JPH0527582B2
公开(公告)日：1993-04-21
申请号：JP4017187
申请日：1987-02-25
申请人： NIPPON KOKAN KK , TAISEI KENSETSU KK
发明人： SATO KAZUYOSHI , ARAKI SHIGERU , HARA MIKIKAZU , YANAKA HIDEOMI , HATSUZAKI TOSHIO , SAKAMOTO MASANOBU , UJI KIMITAKA
IPC分类号： C04B28/02 , C04B7/19 , C04B24/16 , C04B24/30 , C04B24/38

2. 发明专利

JPH0452411B2 失效
公开(公告)号：JPH0452411B2
公开(公告)日：1992-08-21
申请号：JP15001382
申请日：1982-08-31
申请人： NIPPON KOKAN KK
发明人： SAITO HIROSHI , YANAKA HIDEOMI , TAKEMOTO KATSUHIRO
IPC分类号： G01N21/17 , G01N33/24

3. 发明专利

JPH0364562B2 失效
公开(公告)号：JPH0364562B2
公开(公告)日：1991-10-07
申请号：JP8388084
申请日：1984-04-27
申请人： NIPPON KOKAN KK
发明人： YANAKA HIDEOMI , NAGANO MASANORI , NODA HIDETOSHI , HOTSUTA HIROHISA
IPC分类号： C21B5/00

4. 发明专利

JPH02145729A MANUFACTURE OF BRIQUETT ORE 失效
公开(公告)号：JPH02145729A
公开(公告)日：1990-06-05
申请号：JP30018888
申请日：1988-11-28
申请人： NIPPON KOKAN KK
发明人： KUMASAKA AKIRA , YANAKA HIDEOMI , SAKAMOTO NOBORU
IPC分类号： C22B1/14
摘要： PURPOSE:To uniformize the steamline density of a gas over the total width and to improve the yield of the formed products in the title ores by charging granular green pellets to the neighborhood of a pallet sidewall in an edgeless moving grate type firing furnace. CONSTITUTION:Granular iron ores are admixed with a solvent and the admixture is granulated. The surface of the granulates is coated with a granular solid fuel to prepare green pellets. Next, the green pellets are charged to the neighborhood of a pallet sidewall in an edgeless moving grate type firing furnace and are fired. Then, the lump ores constituted of an aggregate of fired pellets having an irregular shape are continuously manufactured.

5. 发明专利

JPH01119351A METHOD FOR MANUFACTURING FINE POWDER 失效
公开(公告)号：JPH01119351A
公开(公告)日：1989-05-11
申请号：JP27505487
申请日：1987-10-30
申请人： NIPPON KOKAN KK , NISSHIN ENG
发明人： YANAKA HIDEOMI , SATO KAZUYOSHI , HARA MIKIKAZU , KOKUBU MUTSUO , YAMADA YUKIYOSHI , KANO OSAMU
IPC分类号： B02C23/08 , B02C23/14 , C04B7/147 , C04B7/52
摘要： PURPOSE: To provide fine powder of >=6000 in plane specific surface area by classifying the pulverized feed formed by pulverizing the feed to the plane specific surface area of 4300 to 800 cm /g, then capturing the resultant classified fine powder in a capturing stage. CONSTITUTION: The pulverized feed formed to the plane specific surface area of 4300 to 800 cm /g is charged into a classifying machine 3 by a screw feeder 2. The classified fine powder classified by the pneumatic classifying machine 3 having a rotor rotated by a motor 14 is introduced by a conduit 12 into a cyclone 5. The fine powder of the plane specific surface area of 600 to 12000 cm /g is primarily captured by this cyclone 5. The primarily captured fine powder is discharged and recovered from the cyclone 5 by opening a rotary valve 6. On the other hand, the classified coarse powder classified by the classifying machine 3 is discharged through a coarse powder discharge pipe 13 by opening a rotary valve 4.

6. 发明专利

JPS6472949A PRODUCTION OF CEMENT HARDENED BODY HAVING HIGH STRENGTH 失效
公开(公告)号：JPS6472949A
公开(公告)日：1989-03-17
申请号：JP23004387
申请日：1987-09-14
申请人： NIPPON KOKAN KK
发明人： SATO KAZUYOSHI , ARAKI SHIGERU , HARA MIKIKAZU , YANAKA HIDEOMI
IPC分类号： C04B7/19 , C04B28/04
摘要： PURPOSE:To obtain cement hardened body having excellent strength and chemical resistance, and stable and good characteristics, by kneading glassy blast- furnace slag having a specified fineness, cement, high efficient water reducing agent and aggregate with water and thereafter, by increasing density. CONSTITUTION:The glassy blast-furnace slag having 8,000-25,000cm /g fineness expressed by Blaine specific surface area, cement, high efficient water reducing agent, aggregate and water are kneaded and thereafter, the density of the mixture is increased by vibrating and press-forming, to obtain the targeted hardened body. The glassy blast-furnace slag superfine powder above-mentioned is preferably produced by crushing with ball mill, roller mill, vibrating mill, etc., by deironing and thereafter, by separating the powder having a fixed Blaine specific surface area with a classifying device. The high efficient reducing agent is a surfactant not entraining too much air and having large dispersibility and, for example, the surfactant consisting of salt of melamine sulfonic acid- formaldehyde condensate, salt of polycarboxylic acid, etc., as main component, is exemplified.

7. 发明专利

JPS63210052A CEMENT COMPOSITION FOR UNDERWATER CONCRETE 失效
公开(公告)号：JPS63210052A
公开(公告)日：1988-08-31
申请号：JP4017187
申请日：1987-02-25
申请人： NIPPON KOKAN KK , TAISEI CORP
发明人： SATO KAZUYOSHI , ARAKI SHIGERU , HARA MIKIKAZU , YANAKA HIDEOMI , HATSUZAKI TOSHIO , SAKAMOTO MASANOBU , UJI KIMITAKA
IPC分类号： C04B28/02 , C04B7/19 , C04B24/16 , C04B24/30 , C04B24/38

8. 发明专利

JPS63149333A COATING METHOD FOR POWDERY COKE ON GREEN PELLET FOR BURNT AGGLOMERATED ORE 失效
公开(公告)号：JPS63149333A
公开(公告)日：1988-06-22
申请号：JP29668986
申请日：1986-12-15
申请人： NIPPON KOKAN KK
发明人： SAKAMOTO NOBORU , NODA HIDETOSHI , YANAKA HIDEOMI
IPC分类号： C22B1/14
摘要： PURPOSE:To produce green pellet for burnt agglomerated ore having excellent characteristic by making the green pellet in a disk-type pelletizer while adding water, after mixing a drum mixer while adding flux to the powdery iron ore and further coating the green pellet with powdery coke using a drum-type pelletizer. CONSTITUTION:At the time of producing by burning the burnt agglomerated ore as the raw material for blast furnace or the raw material for directly reducing iron-making by an endlessly moving grate type burning furnace, at least one kind of material or more among lime, slaked lime, limestone, bentonite, dolomite, water granulated blast furnace slag are added as flux to the iron ore having

9. 发明专利

JPS62284021A CRUSHING METHOD FOR SINTER CAKE 失效
公开(公告)号：JPS62284021A
公开(公告)日：1987-12-09
申请号：JP12732186
申请日：1986-06-03
申请人： NIPPON KOKAN KK
发明人： YASHIMA SABURO , HASHIMOTO HITOSHI , YAMAMOTO RYOJI , YANAKA HIDEOMI , HATTORI MICHINORI , TAKAGI AKIRA
IPC分类号： C22B1/20 , F27B21/12
摘要： PURPOSE:To prevent the over-crushing of sintered ore and to improve the yield as sintered ore usable in a blast furnace, by intermittently rotating the protruding teeth of a crusher in crushing sintered iron ore by the use of a single spike roll-type crusher. CONSTITUTION:In crushing sinter cakes discharged from a sintering machine into massive state of >=50mm suitable for use in a blast furnace by means of a crusher consisting of protruding teeth 9 and receiving teeth 8, intermittent operation is carried out so that rotation of protruding teeth 9 is stopped every 120 deg. in the course of one rotation. In this way, the quantity of =50mm usable in a blast furnace can be improved.

10. 发明专利

JPS6247927B2 失效
公开(公告)号：JPS6247927B2
公开(公告)日：1987-10-12
申请号：JP22326683
申请日：1983-11-29
申请人： NIPPON KOKAN KK
发明人： YANAKA HIDEOMI , HOTSUTA HIROHISA , NAGANO MASANORI , NODA HIDETOSHI , FURUKAWA KAZUHIRO
IPC分类号： C22B1/20

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