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41. 发明专利

JP2005325446A Method for controlling hot blast stove, control unit, control system, computer program, and computer readable recording medium 有权
标题翻译：控制单元，控制单元，控制系统，计算机程序和计算机可读记录介质的方法
公开(公告)号：JP2005325446A
公开(公告)日：2005-11-24
申请号：JP2005114957
申请日：2005-04-12
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： FUJII AKIRA , UENO TOSHIAKI , SATO TAKASHI , ITO MASAHIRO , KAWAMURA TAKUSHI , YOMOTO KAZUO , HONDA MOTOKI
IPC分类号： C21B9/00 , G05B13/04
摘要： PROBLEM TO BE SOLVED: To improve thermal efficiency in the operation of a hot blast stove, as regards the control method of the hot blast stove for supplying hot blast into a blast furnace, a controller, a control system, a computer program, and a computer readable recoding medium.
SOLUTION: The hot blast stove is constituted of a regenerator for giving the heat to blasting into the blast furnace 200 and a combustion chamber for heating the regenerator, and when the hot blast stove 100 operating the combustion and the blasting as one cycle, is controlled, the combustion term in the one cycle, is divided into the plurality of terms, and the combustion gas temperature and the combustion gas flow-rate, are controlled for each divided term. At this time, the combustion gas temperature at the first term in the one cycle, is higher than the combustion gas temperature at the latter term, and the combustion gas flow-rate at the first term is less than the combustion gas flow-rate at the latter term. Timing for changing from the first term to the latter term, is set to the changing time of the combustion gas temperature and the changing time of the combustion gas flow-rate, respectively, and controlled so as to improve the thermal efficiency.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提高热风炉的运行中的热效率，关于用于向高炉供应热风的热风炉的控制方法，控制器，控制系统，计算机程序，以及计算机可读记录介质。解决方案：热风炉由用于将热量喷射到高炉200中的再生器和用于加热再生器的燃烧室构成，并且当热风炉100操作燃烧和爆破作为一个循环被控制在一个循环中的燃烧项被分为多个项，燃烧气体温度和燃烧气体流量对于每个分割项被控制。此时，一个循环中的第一期的燃烧气体温度高于后期的燃烧气体温度，第一期间的燃烧气体流量小于第一期间的燃烧气体流量，后一个术语。从第一项到第二个任期的时间分别设定为燃烧气体温度的变化时间和燃烧气体流量的变化时间，并且被控制以提高热效率。版权所有（C）2006，JPO＆NCIPI

42. 发明专利

JPH07166165A METHOD FOR CONTROLLING INNER PRESSURE OF COKE OVEN 失效
公开(公告)号：JPH07166165A
公开(公告)日：1995-06-27
申请号：JP34231693
申请日：1993-12-15
申请人： NIPPON STEEL CORP
发明人： YAMAMOTO YASUNORI , TANAKA KEIHACHIRO , SHIHARA YASUTAKA , SATO TAKASHI
IPC分类号： C10B21/16
摘要： PURPOSE:To prescisely control the inner pressures of a coke oven comprising plural arranged combustion chambers and carbonization chambers. CONSTITUTION:In a method for performing a program heat control for each carbonization chamber in a coke oven, the passage surface of a combustion exhaust gas is computed with the characteristic equation described below, and the opening degree of the combustion chamber pressure-controlling damper 16 is determined on the basis of the computed passage area for each combustion chamber. W=alpha.S(PTOP-PDRF) =(aS +bS+C).S-.(PTOP-PDRF) (W is the exhaust gas flow volume of a combustion exhaust gas-changing valve; S is the passage area of the combustion exhaust gas-changing valve; PTOP is the oven top pressure of the combustion chamber; PDRF is the pressure of the exhaust gas passage; alpha is flow volume coefficient; a, b, c are control parameters).

43. 发明专利

JPH07124702A METHOD FOR CONTINUOUSLY CASTING DUPLEX LAYER METALLIC MATERIAL 失效
公开(公告)号：JPH07124702A
公开(公告)日：1995-05-16
申请号：JP29149493
申请日：1993-10-28
申请人： NIPPON STEEL CORP
发明人： SEZE AKIFUMI , TAKEUCHI EIICHI , SATO TAKASHI , TANAKA HIROYUKI , HISATOMI RYOICHI
IPC分类号： B22D11/00 , B22D11/04 , B22D11/10 , B22D11/11 , B22D11/112 , B22D11/116 , B22D27/02
摘要： PURPOSE:To provide a continuous casting method of a duplex layer metallic material having excellent separation of components in the surface inner layers and a prescribed thickness of the surface layer. CONSTITUTION:In the continuous casting method of the duplex layer metallic material supplying two kinds of metals having different compositions into the upper and the lower parts by having the a static magnetic field zone 3 formed in a continuous casting mold 1 as a boundary, the distance from the boundary 7 of the two kinds of metals to the lower end of the mold 1 is made to be within 800 mm. By this method, the duplex layer metallic material having the excellent separation of the components in the surface inner layers and the prescribed thickness of the surface layer can be produced and the duplex layer metallic material having excellent precision of the surface layer and quality characteristic can be obtd.

44. 发明专利

JPH0457886A PROCESS FOR LIQUEFYING COAL 失效
公开(公告)号：JPH0457886A
公开(公告)日：1992-02-25
申请号：JP17064590
申请日：1990-06-28
申请人： MITSUI SEKITAN EKIKA KK , NIPPON STEEL CORP
发明人： YAMAURA JUNJI , MURAKAMI HISASHI , YAMAMOTO HISANORI , IGUCHI KENJI , HIRAYAMA YOSHITAKA , KOBAYASHI MASATOSHI , TABUCHI SUNAO , MOCHIZUKI MICHIHARU , SATO TAKASHI
IPC分类号： B01J23/88 , C10G1/06
摘要： PURPOSE:To control the proportion of aromatic hydrocarbons in a solvent for coal liquefaction always at a given value so as to obtain an optimum yield of a liquefied oil without depending on the properties of the raw coal by employing specific conditions in the title process comprising the coal liquefaction step and the solvent hydrogenation step. CONSTITUTION:In the title process comprising the coal liquefaction step, wherein coal is mixed with a solvent for coal liquefaction to form a slurry, which is heated under pressure in the presence of H2 to undergo hydrogenolysis of the coal, and the solvent is separated from the residue, and the solvent hydrogenation step, wherein part of the solvent separated in the previous step is hydrogenated by heating under pressure in the presence of a catalyst, the hydrogenated solvent from the solvent hydrogenation step being used repeatedly as the solvent for coal liquefaction, such conditions are employed that the difference in the proportion of aromatic hydrocarbons between the solvent fed to the solvent hydrogenation step and the hydrogenated solvent is made equal to the absolute value of the difference in the proportion of aromatic hydrocarbons between the solvent for coal liquefaction fed to the coal liquefaction step and the solvent from the coal liquefaction step by controlling the hydrogenation temperature in the solvent hydrogenation step.

45. 发明专利

JPS63317588A PREDICTION OF FIRE EXTINGUISHMENT IN COKE OVEN 失效
公开(公告)号：JPS63317588A
公开(公告)日：1988-12-26
申请号：JP15297687
申请日：1987-06-18
申请人： NIPPON STEEL CORP
发明人： NAKAGAWA YOJI , SHIHARA YASUTAKA , SATO TAKASHI
IPC分类号： C10B21/10 , C10B57/00
摘要： PURPOSE:To provide the titled prediction procedure where the time when the center in the oven width direction of the carbonizing chamber reaches a specified temperature or higher is detected and based on this time, the extinguishing time is predicted, thus enabling early operation necessary for e.g., the change in the amount of heating fuel during the dry distillation. CONSTITUTION:The time when the temperature at the center in the oven width direction of the carbonizing chamber developing during initial-to-intermediate period of coal dry distillation in the coke oven begins to rise beyond 100 deg.C is detected, thus enabling prediction of the extinguishing time 8-10hr before it occurs. Furthermore variation in practical extinguishing times can greatly be reduced.

46. 发明专利

JPS63268794A METHOD FOR CONTROLLING CARBONIZATION OF COKE OVEN 失效
公开(公告)号：JPS63268794A
公开(公告)日：1988-11-07
申请号：JP10274387
申请日：1987-04-24
申请人： NIPPON STEEL CORP
发明人： MATSUO TAIYO , NAKAGAWA YOJI , SHIHARA YASUTAKA , SATO TAKASHI , NAGANUMA YOICHI , TANAKA KEIHACHIRO
IPC分类号： C10B21/10 , C10B57/00
摘要： PURPOSE:To surely produce coke satisfying target quality thereof, by using a heating rate and discharged coke temperature within a softening and melting region of coke as controllable factors. CONSTITUTION:Target values are set for heating rate and discharged coke temperature within a temperature region in which coal charged into a coke oven softens and melts to compare actual values of the heating rate in operation with the target value of the heating rate and determine a deviation. The following heating pattern including the discharged coke temperature is corrected on the basis of the deviation and the heating pattern in the next cycle is also corrected.

47. 发明专利

JPS63268792A METHOD FOR CONTROLLING HEATING OF TERMINAL FLUE IN PROGRAMMED HEATING OF COKE OVEN 失效
公开(公告)号：JPS63268792A
公开(公告)日：1988-11-07
申请号：JP10274287
申请日：1987-04-24
申请人： NIPPON STEEL CORP
发明人： NAKAGAWA YOJI , SHIHARA YASUTAKA , SATO TAKASHI
IPC分类号： C10B21/10
摘要： PURPOSE:To carry out optimum heating while keeping temperature levels of both terminal flues in a low charging period, by biasing a heating program for both terminal flues corresponding to temperature levels of the heating program for the middle flue and controlling the heating. CONSTITUTION:A supplying system of a fuel and air for exclusive use in both terminal flues is installed and heating of both the terminal flues is carried out along a heating program for exclusive use in both the terminal flues (provided that the lower limit temperature is 900-950 deg.C) having a lower bias by 0-100 deg.C corresponding to a heating pattern of the middle flue system. Furthermore, if the heating program for the middle flue is carried out on the basis of flow rate, heating is controlled by a heating program for exclusive use in both terminal flues biased corresponding to the flow rate level thereof.

48. 发明专利

JPS63241094A METHOD FOR PREDICTING TERMINATION OF COKING PERIOD IN COKE OVEN 失效
公开(公告)号：JPS63241094A
公开(公告)日：1988-10-06
申请号：JP7570087
申请日：1987-03-27
申请人： NIPPON STEEL CORP
发明人： NAKAGAWA YOJI , SHIHARA YASUTAKA , SATO TAKASHI
IPC分类号： C10B45/00 , C10B57/00
摘要： PURPOSE:To easily predict the termination of coking period, by measuring the water content of coke oven gas discharged from a carbonization chamber of a coke oven and predicting the termination of coking period on the basis of the water content change pattern thus obtd. CONSTITUTION:The water content of a coke oven gas generated in a carbonization chamber 2 of a coke oven is continuously measured by a water content detector 7 disposed in the middle of riser tube 5. The measurement results obtd. by the detector 7 are successively fed to a central processing unit 8, wherein computation is conducted to obtain a water content change pattern. As a result, an inflection point (A) and a time (TA) taken to reach the point shown in the drawing are determined. The termination of coking period (TH) is computed and predicted on the basis of the determination results. Dispersion in actual termination of coking period is greatly improved by the present method as compared to the conventional method wherein the termination of coking period is predicted by detecting the peak point of generated gas temps.

49. 发明专利

JPS6045248B2 失效
公开(公告)号：JPS6045248B2
公开(公告)日：1985-10-08
申请号：JP4196081
申请日：1981-03-23
申请人： NIPPON STEEL CORP
发明人： SATO TAKASHI , MURAKAMI MASAAKI , KUWAHATA TSUNEO
IPC分类号： C21D1/70 , C21D1/68

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