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1. 发明专利

JPS636616B2 失效
公开(公告)号：JPS636616B2
公开(公告)日：1988-02-10
申请号：JP12772480
申请日：1980-09-13
申请人： NIPPON STEEL CORP
发明人： SAWAMURA YASUMASA , SATO KATSUHIKO , SUZUKI SATORU
IPC分类号： C22B1/20 , C22B1/16

2. 发明专利

JPS6017809B2 失效
公开(公告)号：JPS6017809B2
公开(公告)日：1985-05-07
申请号：JP18717181
申请日：1981-11-21
申请人： NIPPON STEEL CORP
发明人： OOMIZU MASARU , HARUNA JUNSUKE , SAWAMURA YASUMASA
IPC分类号： C22B1/16

3. 发明专利

JPS5579836A MANUFACTURE OF UNCALCINED LUMP ORE 失效
公开(公告)号：JPS5579836A
公开(公告)日：1980-06-16
申请号：JP15054178
申请日：1978-12-07
申请人： NIPPON STEEL CORP
发明人： SAKURAI SATORU , SATOU KATSUHIKO , SAWAMURA YASUMASA , SUZUKI SATORU
IPC分类号： C22B1/14 , C22B1/243
摘要： PURPOSE:To prevent softening of lump iron raw material at low temps. and deterioration thereof in reducing properties by regulating the value of CaO/SiO2 in all of raw materials, the amt. of MgO and the amt. of the slag making agent to specified values in manufacture of the lump iron raw material for a blast furnace by solidifying fine iron ore with cement. CONSTITUTION:In manufacture of the pellets or briquettes of fine iron ore without sintering, the fine ore is solidified with cement as a binder. At this time, to the ore are added CaO raw material such as limestone or dolomite, SiO2 raw material such as beach sand, serpentine or olivine, and MgO raw material such as hydrocake, serpentine or dolomite. The value of CaO/SiO2 in the solidified pellets or the likes is regulated to 1.2-3.1, the amt. of MgO contained to 1.2-5% of all of the raw materials, and the amt. of the slag making agent to 13-43%. The pellets are not soften early in a blast furnace and are not deteriorated in reducing properties.

4. 发明专利

JPS52126401A PREPARATION OF FUELS WHICH YIELD NO* AT A LOW RATE 失效
公开(公告)号：JPS52126401A
公开(公告)日：1977-10-24
申请号：JP4322976
申请日：1976-04-16
申请人： NIPPON STEEL CORP
发明人： SAWAMURA YASUMASA , YAMAGUCHI TOKUJI
IPC分类号： C10B57/06 , B01D53/34 , B01D53/56 , C10L9/10
摘要： PURPOSE:Preparation of coke which yields NOx at a low rate and is useful as fuels for sintering, characterized by adding CaO or the like as an additive to coal as a raw material.

5. 发明专利

JPS5891132A MANUFACTURE OF SINTERED ORE 失效
公开(公告)号：JPS5891132A
公开(公告)日：1983-05-31
申请号：JP18717181
申请日：1981-11-21
申请人： NIPPON STEEL CORP
发明人： OOMIZU MASARU , HARUNA JIYUNSUKE , SAWAMURA YASUMASA
IPC分类号： C22B1/16
摘要： PURPOSE:To enhance the JIS reduction rate and the reduction powdering index by granulating limestone in the presence of a specified amount of water so as to provide a specified grain size constitution and by blending the limestone with other starting materials. CONSTITUTION:Limestone is granulated in the presence of 2-7%, especially 3-5% water so as to regulate the amount of granules having =3mm. grain size to

6. 发明专利

JPS5884931A MANUFACTURE OF SINTERED ORE 失效
公开(公告)号：JPS5884931A
公开(公告)日：1983-05-21
申请号：JP18413781
申请日：1981-11-17
申请人： NIPPON STEEL CORP
发明人： SAWAMURA YASUMASA , ONO KATSUYA , SATOU KATSUHIKO
IPC分类号： C22B1/20 , C22B1/16 , F27B21/06
摘要： PURPOSE:To enhance the yield, strength and reduction powdering index (RDI) of sintered ore obtd. by a sintering method using air sucked downward by adjusting limestone in starting materials including fine iron ore to a prescribed grain size and vibrating the surface of sintered ore in the early stage of sintering. CONSTITUTION:Limestone as a starting material is adjusted so that fine granules having

7. 发明专利

JPS5754230A Production of sintered ore resistant to reduction and degradation 失效
标题翻译：空值
公开(公告)号：JPS5754230A
公开(公告)日：1982-03-31
申请号：JP12772480
申请日：1980-09-13
申请人： Nippon Steel Corp
发明人： SAWAMURA YASUMASA , SATO KATSUHIKO , SUZUKI SATORU
IPC分类号： C22B1/20 , C22B1/16
摘要： PURPOSE: To produce a sintered ore excellent in resistance to reduction and degradation by mixing a coarse particles of lime of a specified particle size into a powder of iron ore together with other mixing material, when sintering a powder of iron ore by a bottom gas-intake type sintering machine.
CONSTITUTION: When sintering the powder of iron ore by the bottom gas-intake type sintering machine, coarse particles of lime having a particle size of 0.5W10mm, inclusive, are mixed into the powder of iron ore together with other mixing materials. Accordingly, the reaction of the lime in the sintering process is retarded, the formation or growth of the secondary hematite is controlled, and Fe
2 O
3 and CaO are positively reacted with eath other at the time when the atmosphere in the system becomes oxidizing in the later period of the sintering process, thereby forming calcium-ferrite.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：通过将特定粒径的粗石颗粒与其他混合材料一起混合成铁矿石粉末，通过底部气体混合烧结铁矿石粉末，制造出耐还原和降解性优异的烧结矿石，进气式烧结机。构成：通过底部进气型烧结机烧结铁矿石粉末时，粒径为0.5-10mm的石灰粗粉与其他混合材料一起混入铁矿石粉末中。因此，烧结过程中石灰的反应延迟，次级赤铁矿的形成或生长被控制，并且在后期的系统中的气氛变为氧化时，Fe 2 O 3和CaO与其他物质的积极反应的烧结工艺，从而形成铁素体。

8. 发明专利

JPS51147417A METHOD OF MANUFACTURING NONNSINTERED BRIQUETTE 失效
公开(公告)号：JPS51147417A
公开(公告)日：1976-12-17
申请号：JP7143275
申请日：1975-06-14
申请人： NIPPON STEEL CORP
发明人： FURUI TAKEO , SAWAMURA YASUMASA
IPC分类号： C22B1/243 , C22B1/14
摘要： PURPOSE:To manufacture low SiO2 (meaning little slag formation) non-sintered pellets or briquettes with extremely excellent high temperature properties and excellent reducing properties.

9. 发明专利

JPS6160833A Treatment of pulverized raw material for iron making 失效
标题翻译：用于铁制造的粉末原料的处理
公开(公告)号：JPS6160833A
公开(公告)日：1986-03-28
申请号：JP18243284
申请日：1984-08-30
申请人： Hamada Juko Kk , Nippon Steel Corp
发明人： SAWAMURA YASUMASA , TSUDA KATSUHISA
IPC分类号： C22B1/16
摘要： PURPOSE: To produce inexpensively pellets having high strength by adding and mixing CaO and water to and with pulverized iron ore having a specific grain size distribution and curing the same for a specific period then charging the mixture together with the other sintering raw materials to a sintering machine via a mixer.
CONSTITUTION: The CaO or basic material contg. the CaO (about 1W3% quicklime in the case of CaO) as a binder is added and mixed together with suitable water to and within the pulverized iron ore contg. grains of ≤1mm at ≥90% and the ore is cured for ≥3hr. The ore is then charged together with the other sintering raw materials via the mixer to the sintering machine by which pellets are formed. The pellets in which a large amt. of the pulverized iron ore is used are thus formed without using a costly binder.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过向具有特定粒度分布的粉碎铁矿石加入并混合CaO和水，使其固化一段特定时间，生产廉价的高强度颗粒，然后将混合物与其他烧结原料一起加入烧结机器通过搅拌机。构成：CaO或碱性物质加入CaO（在CaO的情况下为约1-3％的生石灰）作为粘合剂，并与合适的水一起混合在粉碎的铁矿石中。 > = 90％的颗粒> 90％，矿石固化> = 3小时。然后将矿石与其他烧结原料一起通过混合器与烧结机一起装入其中形成颗粒。其中大颗粒因此不使用昂贵的粘合剂形成粉碎的铁矿石。

10. 发明专利

JPS5620129A MANUFACTURE OF SINTERED ORE 失效
公开(公告)号：JPS5620129A
公开(公告)日：1981-02-25
申请号：JP9469679
申请日：1979-07-25
申请人： NIPPON STEEL CORP
发明人： SAWAMURA YASUMASA
IPC分类号： C22B1/16
摘要： PURPOSE:To manufacture low SiO2 sintered ore without causing a strength lowering by blending briquettes consisting of high grade iron ore contg. a little SiO2 and a CaO type additive into fine iron ore, carbon material, etc. as starting materials for sintered ore. CONSTITUTION:In the manufacture of sintered ore for a blast furnace, molded briquettes consisting of high grade iron ore contg. a little SiO2 and a CaO type additive such as limestone, quick lime or gypsum are blended into blended starting material of usual fine iron ore and carbon material for fuel. When the materials are sintered, calcium ferrite is formed on the grain boundary of hematite in the iron ore to lower the SiO2 content of the resulting sintered ore as well as hold the strength of the ore. Accordingly, the sintered ore has high crushing strength and can be used sufficiently in a blast furnace. The formation of slag is reduced, the fuel ratio can be lowered, and the productivity of the furnace is enhanced.

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