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1. 发明专利

JPS648053B2 失效
公开(公告)号：JPS648053B2
公开(公告)日：1989-02-13
申请号：JP2549680
申请日：1980-03-01
申请人： KOBE STEEL LTD
发明人： NARITA KIICHI , KANEKO DENTARO , MAEKAWA MASAHIRO , KANAYAMA HIROSHI , KIMURA YOSHIO
IPC分类号： C22B1/216 , C22B1/14

2. 发明专利

JPS5649811A BLOWING METHOD FOR SLURRY FUEL 失效
公开(公告)号：JPS5649811A
公开(公告)日：1981-05-06
申请号：JP12716179
申请日：1979-10-01
申请人： KOBE STEEL LTD
发明人： NARITA KIICHI , MAEKAWA MASAHIRO , DEGUCHI MIKIROU , MORI TOSHIJI
IPC分类号： F23N1/00 , F23C1/10 , F23K1/02 , F23K5/00
摘要： PURPOSE:To provide a uniform blowing of slurry fuel into a furnace from a plurality of tuyeres by a method wherein a pressure loss in the slurry fuel return pipe is adjusted for its dispersion covering an entire length of the pipe in a mass feeding and a partial return system. CONSTITUTION:Feeding volume of slurry fuel from the pump 5 is made to be higher than a blowing volume from the tuyeres of the shaft furnace 8, the remaining volume other than a blowing consumption volume is returned back to the tank 2 through the flow rate adjuster valve 11b, a return pipe 15. In this case,a degree of opening of the flow rate adjustment valve 11b is kept at a predetermined initial value, and a pressure loss is adjusted for its dispersion so as to apply a desired return pressure over an entire length of the return pipe 15 after the valve 11b. As its dispersion adjustment method, a branch pipe and the valves 16, 16' are arranged in the return pipe 15, 1) either one of the valves 16, 16 is opened to vary a length of the pipe, 2) similarly a pipe having a different diameter is selected, and 3) similarly a pipe having a different height is selected, etc. Accordingly, a pressure loss over an entire length of the return pipe 15 becomes substantially the same as a sum of the pressure loss in the entire length of the pipe ranging from the annular pipe 6 to the shaft furnace 8 and the furnace pressure, resulting in that a volume of blowing at the tuyeres is made to be uniform.

3. 发明专利

JPS55160092A SLURRY FUEL 失效
公开(公告)号：JPS55160092A
公开(公告)日：1980-12-12
申请号：JP6827479
申请日：1979-05-31
申请人： KOBE STEEL LTD
发明人： NARITA KIICHI , MAEKAWA MASAHIRO , DEGUCHI MIKIROU , MORI TOSHIJI , KATOU KENZOU
IPC分类号： C10L1/32 , C10L10/08
摘要： PURPOSE:Slurry fuel, capable of keeping blowing resistance as low as possible and preventing clogging and wear of a flow control valve and a blowing nozzle, prepared by mixing a carbonaceous material of a specified particle size with a liquid fuel. CONSTITUTION:A carbonaceous material, of which not more than 0.5wt% has a particle size of 1/3-3/3 of the minimum width in the pipe line and at least 40wt% has a particle size of 0.1mm. or less, and as a coal powder, is mixed with a liquid fuel such as heavy oil. Whereby it is possible to eliminate difficulties such as clogging and wear of a flow control valve and a burner and to maintain stable blowing conditions for a long period of time.

4. 发明专利

JPH0582447B2 失效
公开(公告)号：JPH0582447B2
公开(公告)日：1993-11-19
申请号：JP14564185
申请日：1985-07-02
申请人： KOBE STEEL LTD
发明人： ASHINAGA TAKEHIKO , TSUCHA OSAMU , WATANABE MAKOTO , IMANISHI NOBUYUKI , ONODA MAMORU , MAEKAWA MASAHIRO
IPC分类号： C21B13/02 , C21B5/00 , C21B13/00 , C22B1/14 , C23C4/04

5. 发明专利

JPS5779128A Sintered ore of iron ore 失效
标题翻译：铁矿石烧结矿
公开(公告)号：JPS5779128A
公开(公告)日：1982-05-18
申请号：JP15501280
申请日：1980-11-04
申请人： Kobe Steel Ltd
发明人： SHIGAKI ICHIROU , SAWADA MINEO , NARITA KIICHI , MAEKAWA MASAHIRO
IPC分类号： C22B1/16
摘要： PURPOSE: To improve the properties of sintered ore of iron ore at high temp. in a blast furnace by adding a specified amount of Mn to the sintered ore in the form of oxide.
CONSTITUTION: Sintered ore of iron as starting material for a blast furnace is mixed with ore such as iron-manganese ore or slag contg. Mn such as ferromanganese slag so that manganese oxide is contained in the sintered ore by 0.9W4.0wt% as Mn. When the resulting sitered ore is reduced at a high temp. in the blast furnace, molten slag oozes from the ore and covers the ore surface, so the retardation of the reduction can be prevented, and the productivity of the furnace is not lowered. In addition, the pressure of air blown into the furnace is not raised, the consumption of coke is not increased, and the conditions of the furnace are not made unstable.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：提高铁矿石高温烧结矿的性能。在高炉中以氧化物的形式向烧结矿中加入规定量的Mn。构成：以铁矿为原料的铁矿烧结矿与铁锰矿或矿渣等矿石混合。锰如铁锰渣，使得烧结矿中的锰氧化物以Mn为0.9-4.0重量％。当所得到的矿石在高温下还原时。在高炉中，熔渣从矿石渗出并覆盖矿石表面，因此可以防止还原的延迟，并且炉的生产率不降低。此外，吹入炉内的空气的压力不会升高，焦炭的消耗量不会增加，并且炉子的状况不会变得不稳定。

6. 发明专利

JPS5723039A Sintered pellet of iron ore 失效
标题翻译：铁矿石烧结粉
公开(公告)号：JPS5723039A
公开(公告)日：1982-02-06
申请号：JP9665880
申请日：1980-07-14
申请人： Kobe Steel Ltd
发明人： SHIGAKI ICHIROU , SAWADA MINEO , NARITA KIICHI , MAEKAWA MASAHIRO
IPC分类号： C22B1/14
CPC分类号： Y02P10/212
摘要： PURPOSE: To provide the titled pellet excellent in high temp. softening property and capable of lowering a cost of a fuel such as coke or the like when it is used in an iron stock material in a shaft furnace or the like as well as keeping a furnace condition stable comprising containing Mn oxide in a predetermined ratio.
CONSTITUTION: An iron ore sintered pellet contains 0.8W4.0wt% of Mn oxide as an Mn amount. In said sintered pellet, an m.p. of the Mn oxide therein is low, that is, 1,570°C and, because there is no shell formation found in a conventional magnesia containing pellet, slag formation in pellet sintering is promoted smoothly. Therefore, there is no anxiety such that pellet strength is lowered by a residue of a nonslagged substance. Further, as an Mn oxide source used in preparing said pellet, ferruginous manganese ore, ferrorhodochrosite or the like can be shown.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：提供高温高品质丸粒。软化性能，并且当其用于竖炉炉等中的铁屑材料中时能够降低诸如焦炭等燃料的成本，并且保持包含以预定比例含有Mn氧化物的炉状态稳定。构成：铁矿石烧结颗粒含有0.8-4.0重量％的Mn氧化物作为Mn量。在所述烧结颗粒中，的Mn氧化物低，即为1570摄氏度，并且由于在常规的含有氧化镁的颗粒中没有发现壳形成，颗粒烧结中的炉渣形成顺利地促进。因此，没有焦虑，使得颗粒强度被非剥离物质的残留物降低。此外，作为用于制备所述颗粒的Mn氧化物源，可以示出铁质锰矿，铁素体合金等。

7. 发明专利

JPS5458611A MANUFACTURE OF SINTERED ORE 失效
公开(公告)号：JPS5458611A
公开(公告)日：1979-05-11
申请号：JP12615677
申请日：1977-10-19
申请人： KOBE STEEL LTD
发明人： NARITA KIICHI , MAEKAWA MASAHIRO , SHIGAKI ICHIROU , SAWADA MINEO
IPC分类号： C22B1/16
摘要： PURPOSE:To manufacture sintered ore giving guarantee for stable blast furnace operation by regulating the MgO content and basicity of the product sintered ore to each specific range. CONSTITUTION:A MgO-contg. substance is added to sintering raw materials so that the MgO content of the resulting sintered ore becomes 1.0-3.0 wt% and the basicity (CaO/SiO2) 1.1-1.4, followed by sintering. By this sintering method high m.p. sintered ore is manufactured and the powdering tendency due to low temp. reduction is improved. Using the sintered ore in blast furnace operation the coke ratio is lowered and the hot iron ratio is increased.

8. 发明专利

JPH0130045B2 失效
公开(公告)号：JPH0130045B2
公开(公告)日：1989-06-15
申请号：JP8736880
申请日：1980-06-26
申请人： KOBE STEEL LTD
发明人： NARITA KIICHI , MAEKAWA MASAHIRO , KANAYAMA HIROSHI , SEKI YOSHIKAZU , SAITO TAKEFUMI
IPC分类号： C10L5/00 , F23C1/00 , F23D1/00

9. 发明专利

JPS5712096A COMBUSTION METHOD FOR POWDER FUEL 失效
公开(公告)号：JPS5712096A
公开(公告)日：1982-01-21
申请号：JP8736880
申请日：1980-06-26
申请人： KOBE STEEL LTD
发明人： NARITA KIICHI , MAEKAWA MASAHIRO , KANAYAMA HIROSHI , SEKI YOSHIKAZU , SAITOU TAKEFUMI
IPC分类号： C10L5/00 , F23C1/00 , F23D1/00
摘要： PURPOSE:To obtain a good combustion efficiency and combustion rate with a powder fuel having bad burning properties, by blending a slow-burning powder fuel with a rapid-burning powder fuel and blowing them into a furnace together with a carrier gas. CONSTITUTION:A slow-burning powder fuel containing 10wt% or more combustible volatile matter, e.g. coke for a blast furnace, is blended with 50wt% or more rapid-burning powder fuel containing 20wt% or more combustible volatile matter, e.g. Risgow coke, to blow them into a furnace together with a carrier gas. When a blending ratio of the rapid-burning fuel to the slow-burning fuel is less than 40wt%, the combustion ratio is hardly improved. After the blending ratio reaches 40wt%, the combustion ratio is abruptly raised and, in particular, the mixed fuel blended with 50wt% or more raiod-burning fuel shows an excellent combustion ratio hardly inferior to a sole rapid-burning fuel.

10. 发明专利

JPS56123332A CALCINING METHOD FOR IRON ORE PELLET 失效
公开(公告)号：JPS56123332A
公开(公告)日：1981-09-28
申请号：JP2549680
申请日：1980-03-01
申请人： KOBE STEEL LTD
发明人： NARITA KIICHI , KANEKO DENTAROU , MAEKAWA MASAHIRO , KANAYAMA HIROSHI , KIMURA YOSHIO
IPC分类号： C22B1/216 , C22B1/14
摘要： PURPOSE:To reduce the pellet calcining cost by introducing a hot gas of low oxygen concn. from an upper part of a heating section to heat raw pellets contg. a specified amount of coke to a temp. where the pellets are not burned. CONSTITUTION:Raw pellets M contg. 1-10% coke besides iron ores are prepared. Pellets M are carried to drying section 21 with grate 20 and dried by introducing a hot gas upward from the bottom of grate 20. Dried pellets M are then heated to >= about 800 deg.C with a hot gas in heating section 22. At this time, the gas is desired to be slightly short in oxygen not to ignite pellets M, and low oxygen auxiliary fuel G is introduced from an upper part to restrict the oxygen concn. to

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