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51. 发明专利

JPS59145730A Method for extending life of lance for stirring molten metal 失效
标题翻译：用于延长金属丝的生命寿命的方法
公开(公告)号：JPS59145730A
公开(公告)日：1984-08-21
申请号：JP1886283
申请日：1983-02-09
申请人： Nippon Kokan Kk
发明人： SHIRATANI YUUSUKE , MATSUDA YASUHIRO , KOMATSU YOSHIMI , USUI TSUTOMU , KOBAYASHI MOTONOBU , TAKAHASHI TATSUTO , KITAMURA MINORU , KATOU KAZUYOSHI
IPC分类号： C21C1/02 , B22D1/00 , C21C5/46 , C21C5/56 , C21C7/072 , C22B9/05
CPC分类号： B22D1/005
摘要： PURPOSE:To extend the service life of a lance for stirring a molten metal in the stage of using said lance by holding the lance in a nonoxidative atmosphere after the treatment thereby preventing the oxidation of carbon in the refractories of the lance. CONSTITUTION:A molten metal is stirred and refined by using a lance 3 for stirring a molten metal consisting of a metallic pipe 7 having a gas passage hole 7' and refractories 8 covering the outside circumference thereof. Said lance is housed in a sealing vessel 10 after the treatment. The vessel 10 consists of a shell 11 and a heat insulating material 12 and is provided with a cover 13 to be opened and closed by a hinge 14 and a feed port 15 for inert gas. Said lance 3 is held in an inert atmosphere of N2, Ar, etc. in the vessel 10 to prevent the oxidation of carbon in the refractories 8 and to make effective use of the resistance to slag and spalling of carbon, whereby the service life of the lance 3 is extended.
摘要翻译：目的：通过在处理之后将喷枪保持在非氧化性气氛中，在使用所述喷枪的阶段中延长用于搅拌熔融金属的喷枪的使用寿命，从而防止喷枪耐火材料中的碳氧化。构成：通过使用用于搅拌由具有气体通道孔7'的金属管7和覆盖其外圆周的耐火材料8组成的熔融金属的喷枪3搅拌和精炼熔融金属。所述喷枪在处理之后容纳在密封容器10中。容器10由外壳11和绝热材料12组成，并且设置有盖13，其由铰链14和用于惰性气体的进料口15打开和关闭。所述喷枪3在容器10中保持在N 2，Ar等的惰性气氛中，以防止耐火材料8中的碳氧化，并有效利用耐渣和耐剥落性，从而使其寿命喷枪3延伸。

52. 发明专利

JPS59145727A Cooling method of lance for stirring molten metal 失效
标题翻译：用于冲击金属的冷却方法
公开(公告)号：JPS59145727A
公开(公告)日：1984-08-21
申请号：JP1885983
申请日：1983-02-09
申请人： Nippon Kokan Kk
发明人： SHIRATANI YUUSUKE , MATSUDA YASUHIRO , KOMATSU YOSHIMI , USUI TSUTOMU , KOBAYASHI MOTONOBU , TAKAHASHI TATSUTO , KITAMURA MINORU , KATOU KAZUYOSHI
IPC分类号： C21C1/02 , B22D1/00 , C21C5/46 , C21C5/56 , C21C7/072
CPC分类号： B22D1/005
摘要： PURPOSE:To extend the service life of a lance for stirring a molten metal and to reduce the cost ratio thereof in the stage of using said lance by packing finely granulated dry ice into the metallic pipe of said lance thereby cooling forcibly the pipe. CONSTITUTION:A molten metal is stirred and refined by using a lance 3 for stirring a molten metal consisting of a metallic pipe 7 having a gas passage hole 7' and refractories 8 covering the outside circumference thereof. The finely pulverized dry ice in a hopper 10 is forced by gaseous Ar, etc. into the pipe 7 after the end of the treatment so that the pipe is forcibly and effectively cooled by utilizing the sublimation heat of said ice. The difference in thermal expansion between the pipe 7 and the refractories 8 is thus decreased and the generation of the crack and peeling in the refractories and the bend, etc. of the pipe 7 is prevented, by which the life of the lance 3 is extended and the cost ratio thereof is reduced.
摘要翻译：目的：为了延长用于搅拌熔融金属的喷枪的使用寿命，并且通过将细碎的干冰包装在所述喷枪的金属管中，在使用所述喷枪的阶段降低其成本比，从而强制冷却管道。构成：通过使用用于搅拌由具有气体通道孔7'的金属管7和覆盖其外圆周的耐火材料8组成的熔融金属的喷枪3搅拌和精炼熔融金属。在处理结束之后，料斗10中的细粉碎的干冰被气态Ar等压入管道7中，从而通过利用所述冰的升华热来强制地和有效地冷却管道。因此，管7与耐火材料8之间的热膨胀差异减小，并且防止了管7的耐火材料的龟裂和剥离和弯曲等的产生，延长了喷枪3的寿命成本比降低。

53. 发明专利

JPS59145720A Cooling method of lance for stirring molten metal 失效
标题翻译：用于冲击金属的冷却方法
公开(公告)号：JPS59145720A
公开(公告)日：1984-08-21
申请号：JP1885283
申请日：1983-02-09
申请人： Nippon Kokan Kk
发明人： SHIRATANI YUUSUKE , MATSUDA YASUHIRO , KOMATSU YOSHIMI , USUI TSUTOMU , KOBAYASHI MOTONOBU , TAKAHASHI TATSUTO , KITAMURA MINORU , KATOU KAZUYOSHI
IPC分类号： C21C1/02 , B22D1/00 , C21C5/46 , C21C5/56 , C21C7/072
CPC分类号： B22D1/005
摘要： PURPOSE:To extend the service life of a lance for stirring a molten metal and to reduce the cost ratio thereof by using the lance for refining and running the gas cooled to an ordinary temp. or below in succession to the treatment thereby cooling the lance. CONSTITUTION:A lance 3 for stirring a molten metal which consists of a metallic pipe 7 having a gas passage hole 7 and covering refractories 8 enclosing the outside circumference thereof is immersed in the molten iron 4 in a ladle 1 and gas bubbling 6 is generated, whereby the molten iron 4 is stirred and refined. The gas cooled to an ordinary temp. or below is kept run in succession even after the end of the treatment to cool said pipe 7. The difference in the thermal expansion between the refractories 8 and the pipe 7 is thus decreased and the generation of the crack and stripping in the refractories 8 and the bend, etc. of the pipe 7 is prevented. Air, Ar, N2, CO2 or the like is cooled by being passed through a cooling tank filled therein with liquefied gas and is adequately used at a flow rate of 200-5,000Nl/min as the above-mentioned cooling gas.
摘要翻译：目的：为了延长喷枪的使用寿命，用于搅拌熔融金属，并通过使用用于精炼和运行冷却至普通温度的气体的喷枪降低成本比。或以下，从而冷却喷枪。构成：用于搅拌熔融金属的喷枪3由具有气体通道孔7的金属管7和包围其外圆周的耐火材料8组成，浸入钢包1中的铁水4中，产生气体鼓泡6，从而使铁水4被搅拌和精制。气体冷却至普通温度即使在处理结束后，连续地保持连续运行，以冷却所述管7.耐火材料8和管7之间的热膨胀差异因此降低，并且在耐火材料8中产生裂纹和剥离能够防止管7的弯曲等。空气，Ar，N 2，CO 2等通过在其中填充有液化气体的冷却槽进行冷却，并以200-5,000Nl / min的流量充分地用作上述冷却气体。

54. 发明专利

JPS58181813A Split-type refining furnace 失效
标题翻译：分体型精炼炉
公开(公告)号：JPS58181813A
公开(公告)日：1983-10-24
申请号：JP6391882
申请日：1982-04-19
申请人： Nippon Kokan Kk
发明人： YAMADA KENZOU , IWASAKI KATSUHIRO , KITANI FUKUICHI , TAKAHASHI TATSUTO
IPC分类号： C21C1/00 , C21C5/28
CPC分类号： C21C5/28
摘要： PURPOSE:To enhance the efficiency of decarburization with injected oxygen, while reducing the diffusion of heat through the opening of a furnace to the smallest value, in the split-type refining furnace comprising upper and lower cells, by making the sectional area of the opening in the upper cell to a specified size. CONSTITUTION:In the split-type refining furnace comprising an upper cell 1 and a lower cell 2, wherein the upper and lower cells 1, 2 can be freely connected to and separated from each other, the sectional area of an opening 1A in the upper cell 1 is limited in a range of 0.002-0.03m by ton of molten iron to be charged in the lower cell 2. Hence the sectional area of the opening 1A can be made without deteriorating the efficiency of decarburization with oxygen, and the amount of heat diffusing through the opening 1A can be suppressed to the lowest value.
摘要翻译：目的：为了提高注射氧气的脱碳效率，同时通过将炉子开口的热量扩散到最小值，在包括上下电池的分流式精炼炉中，通过使开口的截面积在上部单元格中指定大小。构成：在包括上电池1和下电池2的分割式精炼炉中，上电池1,2和下电池1可以彼此自由地连接和分离，上部开口1A的截面积在上部单体电池1在0.002-0.03m 2的范围内被限制在下部电池2中的铁水中。因此，开口1A的截面积可以在不降低氧气脱碳效率的情况下进行，并且可以将通过开口1A扩散的热量抑制到最低值。

55. 发明专利

JP2002238401A METHOD FOR IMPROVING UNDERWATER ENVIRONMENT 审中-公开
公开(公告)号：JP2002238401A
公开(公告)日：2002-08-27
申请号：JP2001270231
申请日：2001-09-06
申请人： NIPPON KOKAN KK
发明人： NUMATA TETSUSHI , MIYATA YASUTO , TAKAHASHI TATSUTO , TOYODA KEISEI , SATO YOSHIO
IPC分类号： A01K61/00
摘要： PROBLEM TO BE SOLVED: To provide a method for improving the underwater environment by which the method can be carried out at a low cost in a sea area where a withered seashore or red tide is actually caused or there is a fear of causing the withered seashore or red tide or a sea area where decline or disappearance of the seaweed growing environment due to a cause other than the withered seashore is actually caused or there is a fear of causing the decline or disappearance and excellent effects on prevention of occurrence of the withered seashore or prevention of the red tide, creation of seaweed beds or repair, etc., of seaweed growing environment are obtained. SOLUTION: This method for improving the underwater environment comprises sinking a granulated blast furnace slag in the sea area where the withered seashore or red tide is actually caused or there is a fear of causing the withered seashore or red tide or the sea area where the decline or disappearance of seaweed growing environment due to a cause other than the withered seashore is actually caused or there is a fear of causing the decline or disappearance. Thereby, extremely effective countermeasures for preventing the withered seashore or countermeasures for red tide or the creation of seaweed beds or the repair of the seaweed bed growing environment can be realized at a low cost. The method is characterized by installing the granulated blast furnace slag as a silicate ion releasing source in water.

56. 发明专利

JP2002154886A SLOW-ACTING POTASH FERTILIZER 失效
公开(公告)号：JP2002154886A
公开(公告)日：2002-05-28
申请号：JP2000343976
申请日：2000-11-10
申请人： NIPPON KOKAN KK
发明人： HAMADA ETSUO , YAO YASUKO , TAKAHASHI TATSUTO , ISOO NORIO
IPC分类号： C05D11/00
摘要： PROBLEM TO BE SOLVED: To produce a potash fertilizer having a good slow-acting property regardless of components exclusive of K2O. SOLUTION: This slow-acting potash fertilizer consists essentially of K2O, SiO2 and CaO and contains Al2O3, MgO, MnO and Fe2O as selective components. The content of K2O thereof is below the threshold at which the ratio of water- soluble K2O rises.

57. 发明专利

JP2002012480A METHOD OF MANUFACTURING CARBONATED SOLID 失效
公开(公告)号：JP2002012480A
公开(公告)日：2002-01-15
申请号：JP2000193036
申请日：2000-06-27
申请人： NIPPON KOKAN KK , KOKAN MINING CO LTD
发明人： ISOO NORIO , TAKAHASHI TATSUTO , WATANABE KEIJI , NISHI KATSUHIRO
IPC分类号： C04B28/08 , C04B40/02
摘要： PROBLEM TO BE SOLVED: To provide a method of manufacturing a large carbonated solid with strength at a low cost by the process that gaseous carbon dioxide is introduced into a packed layer filled with a noncarbonated raw material which contains calcium and water, then carbonation-solidification is carried out in a simple frame mold. SOLUTION: A manufacturing apparatus is provided with the frame mold, a gas supply pipe and a gas blow part which is arranged at the bottom of the frame mold and connected to the gas supply pipe. The frame mold is filled with the raw material, then the gaseous carbon dioxide is released from the gas blow part. The gas passes through the raw material layer and is discharged from the upper part of the mold. The raw material layer is solidified by carbonation and reinforced by at least the used gas blow part.

58. 发明专利

JP2001252525A REACTION APPARATUS FOR DISCHARGED CARBON DIOXIDE ABSORBING REACTION 失效
公开(公告)号：JP2001252525A
公开(公告)日：2001-09-18
申请号：JP2000069265
申请日：2000-03-13
申请人： NIPPON KOKAN KK
发明人： ISHIGUCHI YUKIO , ISOO NORIO , TAKAHASHI TATSUTO
IPC分类号： B01D53/62 , B01D53/14 , B01D53/18 , B01J20/04
摘要： PROBLEM TO BE SOLVED: To prevent the blow-through of CO2-containing exhaust gas in a packed bed when CO2 in the CO2-containing exhaust gas is absorbed and fixed by solid particles containing non-carbonated Ca by introducing the CO2-containing exhaust gas into a reaction tank packed with an aggregate of solid particles containing non- carbonated Ca in a moisture-containing state. SOLUTION: In a reaction apparatus for discharged carbon dioxide absorbing reaction, having the reaction tank packed with the aggregate of the solid particles containing non-carbonated Ca, the reaction tank has at least one constitution selected from constitution (a) such that a vibrator is provided in the reaction tank to apply vibration to the side wall thereof, constitution (b) such that inclination reducing the horizontal cross-sectional area in the reaction tank downwardly is applied to the inner wall surface of the reaction tank, constitution (c) such that the horizontal cross section of the reaction tank is formed into a circular or oval shape or the inner corner part of the reaction tank is formed into an arcuate or oval arcuate shape and constitution (d) such that an exhaust gas introducing part is provided in the upper part of the reaction tank and an exhaust gas discharge part is provided in the bottom part thereof.

59. 发明专利

JP2000247711A PRODUCTION OF ARTIFICIAL STONE 失效
公开(公告)号：JP2000247711A
公开(公告)日：2000-09-12
申请号：JP5160199
申请日：1999-02-26
申请人： NIPPON KOKAN KK
发明人： ISOO NORIO , TAKAHASHI TATSUTO , TANABE HARUYOSHI
IPC分类号： C04B18/14 , B28B1/00 , C04B28/00 , C04B40/02 , C04B111/54
摘要： PROBLEM TO BE SOLVED: To efficiently produce an artificial stone having excellent strength and uniformity regardless of the largeness of the stone without causing the problem of deformation and breakage of a container for the production by using a CaO component-containing waste material and/or a CaO component- containing slug as a part of a raw material. SOLUTION: This method comprises caking a raw material for a stone, consisting essentially of a mixture of a fine powdery raw material comprising a CaO component-containing waste material and/or a CaO component-containing slug, and having carbonation activity, with a coarse grain raw material having no carbonation activity or a carbonation activity smaller than that of the fine powdery raw material, by carbonation reaction to provide a massive stone. The stone of a pile or a raw material-packed layer formed into the massive one is obtained by forming the pile of the raw material for the stone with added water, or a raw material-packed layer in an arbitrary space, blowing a raw material gas containing carbon dioxide gas into the interior thereof to solidify the pile of the raw material for the stone or the raw material-packed layer by carbonic acid by using CaCO3 formed by the carbonation reaction of CaO and/or Ca(OH)2 included mainly in the fine powder raw material.

60. 发明专利

JP2000203923A PRODUCTION OF STONE USING SLAG OR THE LIKE AS PRINCIPAL STARTING MATERIAL 失效
公开(公告)号：JP2000203923A
公开(公告)日：2000-07-25
申请号：JP13696199
申请日：1999-05-18
申请人： NIPPON KOKAN KK
发明人： ISOO NORIO , TAKAHASHI TATSUTO , KATO MAKOTO , KAWASHIMA TAKESHI , WATANABE KEIJI , TANABE HARUYOSHI , NISHI KATSUHIRO
IPC分类号： B09B3/00 , B28B23/02 , C04B28/08 , C04B28/12 , C04B30/00 , C04B40/02 , E04B2/02
摘要： PROBLEM TO BE SOLVED: To efficiently mass-produce massive artificial stone by carbonation using slag generated in a steel making process or the like as a principal starting material. SOLUTION: A water content of a starting material for stone based on slag generated in a steel making process or the like is adjusted and the starting material is agitated in a step A. The agitated starting material is filled into a molding flask in a step B. The starting material in the molding flask is solidified by carbonation by supplying gaseous CO2 or a gas containing gaseous CO2 in a step C. The resulting massive stone is released from the molding flask in a step D.

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