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1. 发明专利

JPS6154511B2 失效
公开(公告)号：JPS6154511B2
公开(公告)日：1986-11-22
申请号：JP7445081
申请日：1981-05-18
申请人： NIPPON KOKAN KK , SHINAGAWA ROKOO KK , SHINAGAWA SHIRORENGA KK
发明人： TAGUCHI KYOMI , TERADA OSAMU , MORISHITA NORIAKI , MIHASHI HIROSHI , YOSHIMURA MASATOSHI , OZAKI YUKIO
IPC分类号： B22D41/02 , F27D1/16

2. 发明专利

JPS612870B2 JPS612870B2 - 失效
公开(公告)号：JPS612870B2
公开(公告)日：1986-01-28
申请号：JP7213681
申请日：1981-05-15
申请人： Nippon Kokan Kk , Shinagawa Shirorenga Kk
发明人： TAGUCHI KYOMI , TERADA OSAMU , MORISHITA NORIAKI , MIHASHI HIROSHI , NAGAI SEIJI
IPC分类号： B22D41/02 , F27D1/16 , F27D3/00
CPC分类号： F27D1/1626 , F27D2003/0007 , F27D2003/0038

3. 发明专利

JPS6154509B2 失效
公开(公告)号：JPS6154509B2
公开(公告)日：1986-11-22
申请号：JP7131981
申请日：1981-05-14
申请人： NIPPON KOKAN KK , SHINAGAWA SHIRORENGA KK
发明人： TAGUCHI KYOMI , TERADA OSAMU , MORISHITA NORIAKI , MIHASHI HIROSHI , KONO EISUKE
IPC分类号： B22D41/02 , F27D1/00 , F27D1/16

4. 发明专利

JPS6154510B2 失效
公开(公告)号：JPS6154510B2
公开(公告)日：1986-11-22
申请号：JP7132081
申请日：1981-05-14
申请人： NIPPON KOKAN KK , SHINAGAWA SHIRORENGA KK
发明人： TAGUCHI KYOMI , TERADA OSAMU , MORISHITA NORIAKI , MIHASHI HIROSHI , KONO EISUKE
IPC分类号： B22D41/02 , F27D1/00 , F27D1/16

5. 发明专利

JPS6154508B2 失效
公开(公告)号：JPS6154508B2
公开(公告)日：1986-11-22
申请号：JP7131881
申请日：1981-05-14
申请人： NIPPON KOKAN KK , SHINAGAWA SHIRORENGA KK
发明人： TAGUCHI KYOMI , TERADA OSAMU , MORISHITA NORIAKI , MIHASHI HIROSHI , HAYASE MASAHIRO
IPC分类号： B22D41/02 , F27D1/00 , F27D1/16

6. 发明专利

JPS6154507B2 失效
公开(公告)号：JPS6154507B2
公开(公告)日：1986-11-22
申请号：JP7131381
申请日：1981-05-14
申请人： NIPPON KOKAN KK , SHINAGAWA ROKOO KK , SHINAGAWA SHIRORENGA KK
发明人： TAGUCHI KYOMI , TERADA OSAMU , MORISHITA NORIAKI , MIHASHI HIROSHI , YOSHIMURA MASATOSHI , NONAKA SHINGO
IPC分类号： B22C9/08 , B22D41/02 , F27D1/16

7. 发明专利

JPH0479744B2 失效
公开(公告)号：JPH0479744B2
公开(公告)日：1992-12-16
申请号：JP19336783
申请日：1983-10-18
申请人： NIPPON KOKAN KK
发明人： SUZUKI MIKIO , MYAHARA SHINOBU , TERADA OSAMU , HANMYO MASAYUKI , UCHIDA SHIGETAKA , WADA TSUTOMU , KOMATSU YOSHIMI , OBATA TATSUO , KITAGAWA TOORU , KURIBAYASHI AKIO , MIZUKAMI HIDEAKI
IPC分类号： B22D11/16 , B22D11/04 , B22D11/041 , B22D11/053

8. 发明专利

JPH01205018A SMELTING REDUCTION METHOD 失效
公开(公告)号：JPH01205018A
公开(公告)日：1989-08-17
申请号：JP2858588
申请日：1988-02-09
申请人： NIPPON KOKAN KK
发明人： IWASAKI KATSUHIRO , TAKAHASHI KENJI , INOUE SHIGERU , TANABE HARUYOSHI , KAWAKAMI MASAHIRO , TERADA OSAMU
IPC分类号： C21B11/00 , C21B13/00
摘要： PURPOSE:To execute smelting reduction of ore at high heat transfer efficiency and to obtain gas having high calorie by blowing oxygen into slag layer while intensively stirring the slag layer containing a part of iron bath and reforming generated gas in a furnace having high oxidizing degree by charging carbonic material. CONSTITUTION:The ore preheated with a preheating device 30 is charged into a smelting furnace 10 together with the carbonic material and slag making material. To the iron bath 11 and slag layer 12 formed in there, inert gas, CO or process gas is blown from bottom blowing tuyere 26 and side blowing tuyere 25, to execute the smelting reduction. Then, the oxygen for decarbonizing and secondary combustion is blown into the slag layer 12 from a top blowing oxygen lance 21. Further, gas from the side blowing tuyere 25 is hit to molten metal part risen with the gas from the bottom blowing tuyere 26. Then, oxidizing degree (H2O+CO2)/(H2+H2O+CO+CO2) of the gas in the furnace is made to 0.5-1.0. By this method, the heat transfer efficiency is improved and pre-reducing process is made to unnecessity. Further, it is desirable to obtain the gas having high calorie by charging the bulky or granular carbonic material from a charging hole 29 of gas introducing tube 15 in the smelting furnace 10, to reform the above gas in the furnace into low oxidizing degree.

9. 发明专利

JPH01205015A SMELTING REDUCTION METHOD AND APPARATUS THEREOF 失效
公开(公告)号：JPH01205015A
公开(公告)日：1989-08-17
申请号：JP2858288
申请日：1988-02-09
申请人： NIPPON KOKAN KK
发明人： IWASAKI KATSUHIRO , TAKAHASHI KENJI , INOUE SHIGERU , TANABE HARUYOSHI , KAWAKAMI MASAHIRO , TERADA OSAMU
IPC分类号： C21B11/00 , C21B13/00
摘要： PURPOSE:To simply execute smelting reduction to ore at high heat efficiency and high productivity by charging the ore having low prereduced ratio preheated with gas having the specific oxidizing degree and temp. generating in a smelting furnace together with carbonic material and slag making material into the smelting furnace and blowing gas while stirring. CONSTITUTION:The ore is preheated with exhaust gas from the smelting furnace 10 at 300-1,300 deg.C in a preheating device 30 composing of cyclones 31, 35, 39 and heat exchanging ducts 32, 36, 40, etc., and made to

10. 发明专利

JPH01162711A SMELTING REDUCTION METHOD 失效
公开(公告)号：JPH01162711A
公开(公告)日：1989-06-27
申请号：JP32232287
申请日：1987-12-18
申请人： NIPPON KOKAN KK
发明人： IWASAKI KATSUHIRO , TAKAHASHI KENJI , INOUE SHIGERU , TANABE HARUYOSHI , KAWAKAMI MASAHIRO , TERADA OSAMU
IPC分类号： C21B11/00 , C21B11/02 , C21B13/00 , C21B13/02 , C22B5/00
摘要： PURPOSE:To produce molten iron at excellent heat efficiency and low cost by pre- heating and pre-reducing iron ore with exhaust gas in a smelting furnace at the time of iron-making-smelting by reducing the iron ore with carbonic material under using the top-bottom blowing converter type smelting furnace. CONSTITUTION:Lump carbonic material and slag making material are charged into the converter type refining furnace 10 providing a top blowing lance 21 and tuyeres 25, 26 for stirring at side face and bottom part from a chute 13 and also the iron ore is supplied into the pre-heating and pre-reduction furnace 30 from a chute 31 and after pre-heating and pre-reducing with the exhaust gas from the refining furnace 10, it is charged into the smelting furnace 10 through a chute 32. The carbonic material is burnt with O2 blowing from a nozzle 22 of the lance 21 and the raw material is smelting-reduced to make the molten iron 11 and the molten slag 12. CO in the exhaust gas is secondarily burnt with O2 from a nozzle 23 of the lance 21 and supplied into the pre-heating and pre-reducing furnace 30 as the exhaust gas having 300-800 deg.C the temp. and 0.4-0.6 the oxidized degree. This furnace uses fluidized bed type shaft type or rotary kiln type furnace and the exhaust gas is utilized to power generation, etc., by recovering sensible heat with a heat-exchanger 35 after removing dust with a cyclone 33.

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