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1. 发明专利

JP2002212630A METHOD FOR MEASURING ATMOSPHERIC GAS CONCENTRATION IN HEATING FURNACE, AND HEATING FURNACE 失效
公开(公告)号：JP2002212630A
公开(公告)日：2002-07-31
申请号：JP2001014230
申请日：2001-01-23
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , ADACHI KAZUNARI , SUGIMOTO ICHIRO , FURUKAWA AKIHIRO
IPC分类号： F23L15/02 , C21D1/52 , C21D1/76 , F27D7/06 , F27D17/00
摘要： PROBLEM TO BE SOLVED: To provide a method with which the measurement of component gas concentration in the atmosphere in a heating furnace can accurately be performed by utilizing the existing facility. SOLUTION: In the heating furnace having the storage type burners disposed as facing the burner pair attached to the heat-storing body as the heating source, each pair of the burners in the heat-storage type burners are alternately burnt, and exhaust gas in the furnace is sucked from the burner at non-burning and the heat in the exhaust gas is recovered into the heat-storing body by introducing the exhaust gas into the heat-storing body. When the operation of the heating furnace is performed by utilizing the recovered heat to the heating of the air for combustion in the burner at the combustion, a part of the exhaust gas sucked from the above burner is introduced to an analyzer to measure the component concentration in the exhaust gas.

2. 发明专利

JPH10328738A METHOD FOR COOLING HOT ROLLING COIL AND DEVICE THEREFOR 失效
公开(公告)号：JPH10328738A
公开(公告)日：1998-12-15
申请号：JP17189197
申请日：1997-06-27
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , NAKAGAWA FUTAHIKO , KOIDE MASATO
IPC分类号： B21C47/26 , C21D9/52 , C21D9/573
摘要： PROBLEM TO BE SOLVED: To uniformly and swiftly cool a coil without wetting the coil and without generating a rust on the coil by jetting a cooling fog toward the side front face of the hot rolling coil from the lower side of the hot rolling coil by joining it to the raise of an air raising along the side face of the hot rolling coil. SOLUTION: An air piping 3 and a water piping 4 are arranged in pairs along a coil series 2 on both sides of the coil series 2 arranged with plural numbers of coils 1. In fog spraying nozzles 5a to 5d, the opening shape and the inclination against the coil 1 are made different on every nozzle, and a fine drop of water from each nozzle 1 is spread in the range of uniformly covering the side face of the coil 1. For jetting a mist like cooling fog from the fog spraying nozzle 5a to 5d, the water (about 1 kg/cm ) introduced in the nozzle from each piping and the compression air (about 1.5 kg/cm ) are mixed, a fine drop of water is made, and these are jetted. If possible, the raising flow of a cooling fog containing hot temperature air is preferably controlled to 3 to 5 m/s by average flow velocity. The diameter of the drop of cooling water is preferably regulated to less than 50 μm.

3. 发明专利

JPH1072621A HEATING FURNACE OF STEEL MATERIAL 失效
公开(公告)号：JPH1072621A
公开(公告)日：1998-03-17
申请号：JP22884196
申请日：1996-08-29
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , NAKAGAWA FUTAHIKO
IPC分类号： C21D1/00 , C21D1/74 , C21D9/00
摘要： PROBLEM TO BE SOLVED: To reduce scale loss and to drastically improve the yield by arranging a slit nozzle to at least one side of a charging door and an ejecting door in a heating furnace, injecting an inert gas when furnace pressure becomes negative and preventing the entering of the outer air. SOLUTION: A refractory 2a is arranged in the inside of the ejecting door 2 arranged to the furnace body 1 of the heating furnace and a water cooling pipe 2b is embedded in the inner part of the refractory. Further, the slit nozzle 3 for injecting the inert gas is embedded in the ejecting door 2 so as to have about 30-60 deg.C injection angle downward to perpendicular direction and is connected with a piping 4 for supplying the innert gas, and a pressure gage 5 for measuring the furnace pressure, is arranged at the same height as the lowest part of the opening part of an extractor. In this constitution, when the furnace pressure measured with the pressure gage 5 becomes negative, the inert gas is blown from the slit nozzle 3 to prevent the entering of the air from the outer part and an O2 concn. on the surface of a slab in the heating furnace can always be kept to

4. 发明专利

JP2002213879A ATMOSPHERE CONTROL METHOD FOR HEATING FURNACE, AND THE HEATING FURNACE 失效
公开(公告)号：JP2002213879A
公开(公告)日：2002-07-31
申请号：JP2001008524
申请日：2001-01-17
申请人： KAWASAKI STEEL CO
发明人： SUGIMOTO ICHIRO , FURUKAWA AKIHIRO , KARIBE KENTA , ADACHI KAZUNARI
IPC分类号： C21D1/52 , C21D1/76 , F23N3/00 , F23N5/00 , F27B9/36 , F27B9/39 , F27D7/06
摘要： PROBLEM TO BE SOLVED: To provide a method wherein infiltration of air from the extraction door into a heating furnace is surely prevented from happening. SOLUTION: Upon opening the extraction door of the heating furnace, the control of combustion of a heating burner disposed in a lower zone of a furnace extraction end among a plurality of heating burners disposed in the heating furnace is made independently. Further, the frame of the burner is extended in the direction of the extraction outlet extending over the opening width of the extraction outlet, and an infiltration passage for air from the extraction passage is interrupted with the burner frame, to suppress the increase of oxygen concentration in the furnace.

5. 发明专利

JPH10328737A METHOD FOR COOLING HOT ROLLING COIL AND DEVICE THEREFOR 失效
公开(公告)号：JPH10328737A
公开(公告)日：1998-12-15
申请号：JP17189097
申请日：1997-06-27
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , NAKAGAWA FUTAHIKO , KOIDE MASATO
IPC分类号： B21B45/02 , B21C47/26 , C21D9/52 , C21D9/573
摘要： PROBLEM TO BE SOLVED: To uniformly cool a series of coils and each coil, and to immediately ship the coil without storing them by blowing a cooling air from the lower side of a hot rolling coil toward the side surface of the coil and joining the cooling air to a hot air stream generating along the side surface of the coil. SOLUTION: Ventilation ducts 3 are arranged along a coil series 2 on both sides of the coil series 2 arranged with plural numbers of coils 1. The outside air is introduced from ventilation fans 4 installed at the beginning ends of respective ventilation ducts 3. Jetting nozzles pointing to the coil 1 are arranged on both side faces of the ventilation duct 3 by at least, three, for example, 5a to 5d are arranged on every coil 1, and the coil 1 is cooled by blowing the air to the coil 1. In the ventilation duct 3, it is important that the static pressure of the air flow inside the duct 3 is made uniform from the beginning end to the finishing end of the ventilation duct 3. Therefore, the blowing amount of the air onto the coil 1 can be made same between the total coil 1.

6. 发明专利

JPH0938713A METHOD FOR UNIFORMLY COOLING STEEL PLATE 失效
公开(公告)号：JPH0938713A
公开(公告)日：1997-02-10
申请号：JP19477095
申请日：1995-07-31
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA
IPC分类号： B21B45/02 , C21D1/00 , C21D9/52
摘要： PROBLEM TO BE SOLVED: To provide a uniformly cooling method for a steel plate capable of uniformizing the density distribution of water quantity passed on the plate in the plate width direction in the control cooling of the high temp. steel plate. SOLUTION: High speed air flow is ejected to the width edge parts of the steel plate which is cooling by the cooling water from the upper and lower sides to control the contact time of the cooling water passed on the plate with the width edge parts of the steel plate.

7. 发明专利

JP2002220620A METHOD FOR CONTROLLING PRESSURE OF HEATING FURNACE 失效
公开(公告)号：JP2002220620A
公开(公告)日：2002-08-09
申请号：JP2001016974
申请日：2001-01-25
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , ADACHI KAZUNARI , SUGIMOTO ICHIRO , FURUKAWA AKIHIRO
IPC分类号： C21D1/52 , C21D9/00 , F27D7/06 , F27D17/00 , F27D19/00
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling a furnace pressure, which can surely prevent invasion of air into the heating furnace. SOLUTION: This method for controlling the furnace pressure, which arranges a recuperator in the way of a flue for leading exhaust gas in the heating furnace to the outside, and which supplies a dilute air to the recuperator side in the flue, in order to protect the recuperator from high temperature atmosphere, when preheating the combustion air supplied to a burner which is a heat source of the heating furnace, with the recuperator, is characterized by controlling the amount of dilute air flow according to an exhaust gas temperature at the recuperator side and a combustion load of the heating furnace.

8. 发明专利

JP2000130745A OPERATING METHOD FOR HEATING FURNACE 失效
公开(公告)号：JP2000130745A
公开(公告)日：2000-05-12
申请号：JP31100298
申请日：1998-10-30
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , ADACHI KAZUNARI
IPC分类号： F23N5/00 , F23L15/00
摘要： PROBLEM TO BE SOLVED: To perform optimum operation of a heating furnace by a method wherein a flue draft and a high-efficiency waste heat recovery are made compatible with each other in a heating furnace having a regenerative combustion device. SOLUTION: Regenerative combustion devices 11 and 12 each comprising a given pair of burners 13a and 13b disposed on a furnace wall, and a given pair of heat storage bodies 20a and 20b connected to the respective burners 13a and 13b are disposed in a heating zone 4 are disposed at a heating zone 4. A flow rate of exhaust gas discharged after the passage through a heat storage body is controlled by a flow rate regulation value 28 and fed to the incoming side of the air recuperator 8 of a flue 7 and a rest to the outgoing side of a gas recuperator 9. At the flow rate regulating valve 28, by considering a flue draft, a flue pressure loss, and an air recuperator weld loss temperature from the combustion load of a heating furnace, upper and lower limit values of an exhaust gas dilution amount are decided. An exhaust gas dilution amount is controlled such that an exhaust gas dilution amount is adjusted to an optimum value determined as a value, at which a fuel unit requirement is minimized, within the upper and lower limit range of the decided exhaust gas dilution amount.

9. 发明专利

JPH11310831A ROTARY TYPE HEAT EXCHANGER FOR ANNEALING FURNACE FOR METALLIC STRIP 失效
公开(公告)号：JPH11310831A
公开(公告)日：1999-11-09
申请号：JP34630898
申请日：1998-12-07
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , ADACHI KAZUNARI , MOCHIZUKI SAKAE
IPC分类号： C21D1/26 , C21D1/52 , C21D9/56
摘要： PROBLEM TO BE SOLVED: To efficiently recover the heat held in combustion exhaust gas exhausted from a heating zone in a continuous annealing furnace, etc. SOLUTION: The rotary type heat exchanger disposed in the annealing furnace and raising the temp. of circulating gas circulating a preheating zone in the annealing furnace through a heat storage body (t) has the heat exchanger body 1 provided with the heat storage body (t) and continuously or intermittently rotatable itself, a combustion exhaust gas supplying passage 3 for giving the sensible heat of the combustion exhaust gas to the heat storage body (t) by blowing the combustion exhaust gas to this heat exchanger body and a circulating gas supplying passage for raising the temp. of a metallic strip by blowing the circulating gas to the heat storage body, recovering the sensible heat given to the storage heat body and blowing the circulating gas to the metallic strip passed through the preheating zone in the annealing furnace.

10. 发明专利

JP2002220621A METHOD FOR CONTROLLING FURNACE PRESSURE USING REGENERATIVE BURNER 失效
公开(公告)号：JP2002220621A
公开(公告)日：2002-08-09
申请号：JP2001017017
申请日：2001-01-25
申请人： KAWASAKI STEEL CO
发明人： KARIBE KENTA , ADACHI KAZUNARI , SUGIMOTO ICHIRO , FURUKAWA AKIHIRO
IPC分类号： F23L15/02 , C21D1/52 , C21D1/76 , F23C7/06
摘要： PROBLEM TO BE SOLVED: To provide a method for controlling a furnace pressure, which can surely prevent an invasion of air into a heating furnace. SOLUTION: This method for controlling the furnace pressure includes adjusting a suction rate of exhaust gas from the burner to a thermal storage substance, according to a combustion load of the whole heating furnace; in the heating furnace which has a preheating range, a heating range and a soaking range, and which arranges several pairs of regenerative burners as heat sources of the soaking range, in which a pair of burners provided with thermal storage substances is arranged so as to face each other; when sucking up exhaust gas in the furnace from the pausing burner and introducing the exhaust gas to the thermal storage substance, to collect heat in the exhaust gas to the thermal storage substance, along with operating alternately each pair of the burners of the regenerative burners, and operating the heating furnace while using the collected heat for heating the combustion air of the working burner.

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