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31. 发明专利

JPS6124453B2 JPS6124453B2 - 失效
公开(公告)号：JPS6124453B2
公开(公告)日：1986-06-11
申请号：JP14829480
申请日：1980-10-24
申请人： Nippon Kokan Kk
发明人： OZEKI AKYA , HASEGAWA TERUYUKI , TANMURA YOICHI , YAMADA KENZO , USUI TSUTOMU , TAMURA KONOSHIN , EDANE TOSHIO
IPC分类号： C21C5/48
CPC分类号： C21C5/48

32. 发明专利

JPS57188609A UPWARD AND DOWNWARD BLOWING METHOD 失效
公开(公告)号：JPS57188609A
公开(公告)日：1982-11-19
申请号：JP7279081
申请日：1981-05-14
申请人： NIPPON KOKAN KK
发明人： OZEKI AKIYA , HASEGAWA TERUYUKI , NIMURA YOUICHI , YAMADA KENZOU , USUI TSUTOMU , TAMURA KOUNOSHIN , EDANE TOSHIO
IPC分类号： C21C5/34 , C21C5/35
摘要： PURPOSE:To produce not only low carbon steel, but also high carbon steel efficiently by accelerating slag making properties by blowing oxygen from above a steel bath by a swiveling lance, and stirring gas from below the steel bath. CONSTITUTION:A lance 2 swiveling as shown by an arrow blows oxygen 6 from above molten steel 4. At the same time, stirring gas is blown into the molten bath from tuy ere 3. In a swiveling lance method for upward blowing, when the rotational frequency of the lance 2 is regulated to >=15r.p.m., a decrease in decarbonization reation efficiency is great, but using the blowing of the stirring gas from the tuy ere 3 in combination eliminates the influence of the rotational frequency of the lance 2 upon decarbonization. For this purpose, the lance is rotated as fast as possible effectively for the production of slag and dephosphorization.

33. 发明专利

JPS57152413A GAS BLOWING METHOD IN VESSEL FOR MOLTEN METAL 失效
公开(公告)号：JPS57152413A
公开(公告)日：1982-09-20
申请号：JP3539081
申请日：1981-03-13
申请人： NIPPON KOKAN KK
发明人： OZEKI AKIYA , HASEGAWA TERUYUKI , NIMURA YOUICHI , YAMADA KENZOU , USUI TSUTOMU , TAMURA KOUNOSHIN , EDANE TOSHIO
IPC分类号： C21C5/34 , C21C5/35 , C21C7/072
摘要： PURPOSE:To expand the controlling range for the amt. of the gas to be blown by mixing the gas and liquid suitably according to need just before the tuyeres provided to the bottom part or the side wall of a vessel, and blowing this mixture into the molten metal in the vessel. CONSTITUTION:A pipeline 5 which feeds a gas forcibly and a pipeline 6 which feeds liquid forcibly are provided between the tuyeres 3 of a converter 1 and a liquid CO2 source 4. Liquid CO2 is gasified by the evaporator 50 of the pipeline 5 and is fed forcibly through a pressure control valve 52, a flow control valve 53 and a check valve 54 by a gas pressure feed pump 51. On the other hand, the liquid CO2 is forcibly fed through a pressure control valve 62, a flow control valve 63 and a check valve 64 by a gas pressure feed pump 61. Both are mixed just before the tuyeres 3, and the mixture is blown into the molten steel through the tuyeres 3. At this time, the mixing ratios of the gaseous CO2 and the liquid CO2 are suitably determined according to the required flow rate of the gas. If a small flow rate of the gas is required, only the gaseous CO2 is blown.

34. 发明专利

JPS5770215A Controlling method for finish temperature of converter operation 失效
标题翻译：转炉运行完成温度控制方法
公开(公告)号：JPS5770215A
公开(公告)日：1982-04-30
申请号：JP14436480
申请日：1980-10-17
申请人： Nippon Kokan Kk
发明人： TERADA OSAMU , HASEGAWA TERUYUKI , YAMASE OSAMU , EDANE TOSHIO
IPC分类号： C21C5/30 , C21C5/32
CPC分类号： C21C5/32 , Y02P10/212
摘要： PURPOSE:To improve the adequteness degree of the finish temperature of a converter operation and control the finish temperature at the optimum value by a method wherein a correction term determined by the mixing ratios of molten pig iron is added to a temperature rise model used for a dynamic control of the finish temperature of a converter operation for refining. CONSTITUTION:For the dynamic control of the finish temperature of the converter operation for refining, a temperature rise model is used which represents the temperature rise rate per unit amount of blown oxygen dT/dQ in terms of the factors as follows: dT/dQ=F([C]i, Bi, Fi, Ei, Oi, Ii, Ki,). where i is the heat number, [C] is the carbon content of the steel bath, Q is the amount (Nm ) of blown oxygen, B is the blowing pattern, F is the amount of flux charged, E is the contents of other components (Si, Mn, P, etc.), O is the amount of iron ores charged, I is the initial conditions and K is a model factor. To this basis temperature rise model is added the correction term which depends on the amount of undissolved scraps and is determined by the mixing ratios of the molten pig iron. Accordingly, it is made possible to control the finish temperature following up to the change in the mixing ratios of the molten pig iron.
摘要翻译：目的：提高转炉运行终点温度的正确度，并通过一种方法将最终温度控制在最佳值，其中将通过熔融生铁混合比确定的修正项加到用于用于精炼的转炉操作的终止温度的动态控制。构成：为了精炼转炉运行的终止温度的动态控制，使用温升模型，其代表根据以下因素的每单位吹氧量DT / dQ的升温速率：dT / dQ = F（[C] i，Bi，Fi，Ei，Oi，Ii，Ki）。其中i是热数，[C]是钢浴的碳含量，Q是吹氧的量（Nm 3），B是吹塑图案，F是充入的量的量，E是其他组分（Si，Mn，P等）的含量，O是铁矿石的含量，I是初始条件，K是模型因子。在此基础上，增加温升模型，该校正项取决于未溶解废料的量，并由熔融生铁的混合比决定。因此，随着熔融生铁的混合比的变化，能够控制最终温度。

35. 发明专利

JPS5757821A Hot blowing method in top and bottom blown converter 失效
标题翻译：顶部和底部转换器的热喷涂方法
公开(公告)号：JPS5757821A
公开(公告)日：1982-04-07
申请号：JP13237680
申请日：1980-09-25
申请人： Nippon Kokan Kk
发明人： OZEKI AKIYA , HASEGAWA TERUYUKI , NIMURA YOUICHI , YAMADA KENZOU , USUI TSUTOMU , TAMURA KOUNOSHIN , EDANE TOSHIO
IPC分类号： C21C5/32 , C21C5/35 , C21C5/44
CPC分类号： C21C5/44 , C21C5/35
摘要： PURPOSE:To make hot blowing uniform and lower the amt. of bottom blowing gases by adding O2 or combustible gas to the gases to be blown from bottom blowing nozzles. CONSTITUTION:After coke 2 is charged into a furnace 1, O2 is blown from a top blowing lance, and while gases added with, for example, 5-80% O2 are blown from bottom blowing nozzles 3, the furnace is heated up. Here, if the O2 is below the lower limit, the uniformalization of the hot blowing is not realized, and above the upper limit, the erosion and the like of the nozzles 3 occur. The direct use of conventional purging gases such as Ar, CO2 and N2 for the gases added with O2 suffices.
摘要翻译：目的：使热吹均匀，降低amt。通过向从底吹喷嘴喷射的气体加入O 2或可燃气体来产生底吹气体。构成：将焦炭2装入炉1后，从顶吹喷枪吹出O 2，在从底吹喷嘴3吹入加入例如5-80％O 2的气体的同时，炉子被加热。这里，如果O2低于下限，则不能实现热吹均匀化，并且在上限以上，出现喷嘴3的侵蚀等。直接使用常规吹扫气体如Ar，CO2和N2对于添加有O2的气体就足够了。

36. 发明专利

JPS5739113A Steel-making process by converter 失效
标题翻译：转炉制钢工艺
公开(公告)号：JPS5739113A
公开(公告)日：1982-03-04
申请号：JP11346880
申请日：1980-08-20
申请人： Nippon Kokan Kk
发明人： OZEKI AKIYA , HASEGAWA TERUYUKI , NIMURA YOUICHI , YAMADA KENZOU , USUI TSUTOMU , TAMURA KOUNOSHIN , EDANE TOSHIO
IPC分类号： C21C5/34 , C21C5/32 , C21C5/35 , C21C5/48
CPC分类号： C21C5/35
摘要： PURPOSE:To reduce the unit product of an agitating gas and also to prevent the fusion and damage and the clogging of a tuye re, by flowing from bottom of an inert gas or CO2 gas diluted by O2 gas as an agitating gas together with blowing of O2 from top. CONSTITUTION:White O2 gas is blown into molten steel 3 from a lance 2 for blowing from top, an inert gas or CO2 gas from a CO2 gas source 7 diluted by O2 gas from an O2 gas source 8 is blown as an agitating gas into the molten steel 3 from the tuye re 4 under the surface of molten steel 3 in the furnace. The suitable inert gas is Ar gas and the inert gas and CO2 gas may be used in combination. Further, the total amount of a gas blown from bottom is about 1/3-1/3,000 of that of O2 gas blown from top.
摘要翻译：目的：为了减少搅拌气体的单位产物，并且通过从作为搅拌气体的O 2气体稀释的惰性气体或二氧化碳气体的底部流出，同时防止熔融，损坏和堵塞，同时吹入 O2从顶部。构成：将白色的O 2气体从用于从顶部吹出的喷枪2吹入钢水3中，将来自O 2气体源8的由O 2气体稀释的CO 2气体源7的惰性气体或二氧化碳气体作为搅拌气体吹入钢水3从钢管3中的钢管3在炉内。合适的惰性气体是Ar气体，惰性气体和二氧化碳气体可以组合使用。此外，从底部吹出的气体的总量为从顶部吹出的O 2气的总量的大约1 / 3-1 / 3,000。

37. 发明专利

JPS55161778A METHOD OF CONTROLLING OPERATION OF CEILING CRANE 失效
公开(公告)号：JPS55161778A
公开(公告)日：1980-12-16
申请号：JP6610579
申请日：1979-05-30
申请人： NIPPON KOKAN KK
发明人： TSUBOI ISAMU , EDANE TOSHIO , TERAO SEITA , KANEDA MINORU , TSUKIHASHI IKUO
IPC分类号： B66C13/22 , B66C13/40 , B66C13/48

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