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1. 发明专利

JP2000039143A COMBUSTION CONTROL METHOD OF HEAT STORAGE TYPE BURNER DEVICE AND BURNER DEVICE THEREFOR 失效
公开(公告)号：JP2000039143A
公开(公告)日：2000-02-08
申请号：JP20940498
申请日：1998-07-24
申请人： NIPPON KOKAN KK , NIPPON FURNACE KOGYO KK
发明人： SASAKI TAKETO , AKIYAMA SHUNICHI , TAKASHI KOICHI , OGUMA OSAMU , SASA TOSHIO , SHIOJIRI KEIICHI , OKAMOTO YOSHIHIDE , MIYATA MAKOTO
IPC分类号： F23N5/20 , F23L15/02
摘要： PROBLEM TO BE SOLVED: To stabilize combustion and reduce the generation of NOx, in a heat storage type burner device. SOLUTION: The generation of NOx is restrained by a method wherein primary air is supplied from a primary air supplying pipe 5 around a fuel nozzle 4 while secondary air, low in the oxygen concentration thereof, is supplied through a heat storage body 7 to burn the fuel further. When a temperature in a furnace is low, the rate of the primary air is increased by a control unit 40 but the rate of secondary air is increased by the same unit 40 when the temperature in the furnace is high.

2. 发明专利

JPH11236614A HEATING EQUIPMENT AND HEATING METHOD USING THE SAME 失效
公开(公告)号：JPH11236614A
公开(公告)日：1999-08-31
申请号：JP33904798
申请日：1998-11-30
申请人： NIPPON FURNACE KOGYO KK , NIPPON KOKAN KK
发明人： TANAKA RYOICHI , MATSUO MAMORU , KAWAMOTO MASAO , SUDO ATSUSHI , TERAMOTO TOYOKAZU , ISHIOKA MUNEHIRO , HINO YOSHIMICHI , TADA TAKESHI , AKIYAMA SHUNICHI , ISHIGUCHI YUKIO , SASAKI TAKETO , SUGIYAMA SHUNICHI , NAKAYAMA MICHIO , FUJII YOSHIMOTO
IPC分类号： C21D1/52 , C21D9/00 , F23L15/02 , F27B19/00 , F27D17/00
摘要： PROBLEM TO BE SOLVED: To maximize the heat efficiency by drastically reducing gas exhaust loss and to avoid the deterioration of durability of a switching means of a heat storage type burner system. SOLUTION: An auxiliary heating equipment 20 attached to a main heating equipment 1 and a gas exhaust means 21 for exhausting a part of the combustion gas produced in the main heating equipment 1 after dividing the gas flow into the auxiliary heating equipment 20 without passing through the heat storage type burner system 2. A large part of the combustion end produced in the main heating equipment 1 is made to pass through the heat storage type burner system 2 and a part thereof is made to exhaust through the auxiliary heating equipment 20, and the combustion gas quantity exhausted from the heat storage type burner system 2 is controlled to the balancing quantity with the supplied air for combustion, and the exhaust gas temp. exhausted from a heat storage body (e.g. 3b) is lowered near the temp. of the air for combustion before introducing into a heat storage body (e.g. 3a). The exhaust gas temp. of a part of the combustion gas divided into the auxiliary heating equipment 20 is lowered to near the heating furnace temp. in the conventional heating furnace, too, and as the whole body, the exhaust gas temp. is extremely lowered and the max. limit of heat efficiency is obtd.

3. 发明专利

JPH0985326A COOLING DEVICE OF STEEL SHEET 失效
公开(公告)号：JPH0985326A
公开(公告)日：1997-03-31
申请号：JP27954795
申请日：1995-09-22
申请人： NIPPON KOKAN KK , SPRAYING SYST JAPAN KK
发明人： SASAKI TAKETO , MORI ISAO , HINO YOSHIMICHI , IKESOU SHIYOUZOU , YAMAMOTO MASAKI , AKECHI KOSHIN
IPC分类号： B21B45/02
摘要： PROBLEM TO BE SOLVED: To prevent a steel sheet from hindering to pass by connecting a spray nozzle to the inlet of a cooling water, providing a vane giving the cooling water a turning force in the nozzle and gradually converging the cooling water toward the outlet side to stabilize cooling capability even to the variation of cooling water pressure. SOLUTION: The pressured cooling water is fed from the inlet 64 of a connecting body 61 connected to a nozzle body 63 of the nozzle 60 via feeding pipes 16 from a header 1a of the spry nozzle 60, is turned with the vane 62, is converged according to advance while turning in a flow turning chamber 65 and is jetted just after further convergence with an orifice 66. The orifice 66 is formed into an elliptical shape so as to gradually expand according to approach to its outlet and the cooling water is widely and uniformly diffused on the steel sheet with a wholly elliptical spray pattern. And waterdrops are extremely miniaturized, the impact is reduced on the other hand and the local impact to the steel sheet is reduced when the pressure and amount of the water are in the same condition.

4. 发明专利

JPH08155527A COOLER FOR HOT ROLLED METALLIC STRIP 失效
公开(公告)号：JPH08155527A
公开(公告)日：1996-06-18
申请号：JP30618794
申请日：1994-12-09
申请人： NIPPON KOKAN KK
发明人： SASAKI TAKETO , MORI ISAO
IPC分类号： B21B45/02 , C21D9/52 , C21D9/573
摘要： PURPOSE: To make the flow rate density distribution of cooling water in the transverse direction of a metallic strip uniform and to lessen the nonuniform cooling at the un-stationary time at the time of turning a stop valve on and off by providing a hairpin nozzle with the stop valve and an opening degree regulating valve and regulating the cooling water flow rate. CONSTITUTION: This cooler of a pipe laminar system is installed on a run-out table on the outlet side of a hot finishing mill and is mounted with the opening degree regulating valve 4 together with the hairpin nozzle 1 and the stop valve 3. The opening degree regulating valve 4 changes its opening rate by the vertical movement of a bolt screw, thereby changing the flow rate density of the cooling water in the transverse direction of the metallic strip. Since the hairpin nozzle 1 is provided with the stop valve 3, the generation of the water hammer which takes place at the time of the transient on and off of the stop valve 3 is lessened to a negligible level. The responsiveness at the time of discharging the cooling water and the responsiveness at the time of water draining are improved by providing the hairpin nozzle with the stop valve 3 nearer the discharge port.

5. 发明专利

JPH07139727A DOUBLE STAGE FUEL-COMBUSTING DEVICE AND ITS COMBUSTION CONTROL METHOD 失效
公开(公告)号：JPH07139727A
公开(公告)日：1995-05-30
申请号：JP28648893
申请日：1993-11-16
申请人： NIPPON KOKAN KK , NIPPON FURNACE KOGYO KK
发明人： HAMAGUCHI SOU , SASAKI TAKETO , MATSUO MAMORU , SUDO ATSUSHI
IPC分类号： F23N1/00 , F23C99/00 , F23C11/00
摘要： PURPOSE:To provide a double stage fuel combusting device and its combustion control method in which NOx can be restricted over an entire temperature range, a problem of durability of a primary fuel supplying nozzle can be eliminated and further an ignition stability at a combustion burner under a low temperature state can be realized. CONSTITUTION:A double stage fuel combustion device comprises primary fuel supplying means 10, 12 for use in supplying fuel to a primary fuel supplying nozzle 4; secondary fuel supplying means 11, 13 for use in supplying fuel to a secondary fuel supplying nozzle 5; a temperature sensing means 14 for sensing a temperature within a heating furnace or a temperature of combustion air; and a control calculator 15 for setting a rate of fuels supplied to the primary fuel supplying nozzle 4 and the secondary fuel supplying nozzle 5 in response to the detected temperature of the temperature sensing means 14 and controlling the primary fuel supplying means 10, 12 and the secondary fuel supplying means 11, 13, respectively.

6. 发明专利

JPH06241420A HEAT STORAGE TYPE BURNER 失效
公开(公告)号：JPH06241420A
公开(公告)日：1994-08-30
申请号：JP2710193
申请日：1993-02-17
申请人： NIPPON KOKAN KK , NIPPON FURNACE KOGYO KK
发明人： ISHIGUCHI YUKIO , SATO HIROAKI , HAMAGUCHI SOU , SASAKI TAKETO , AKIYAMA SHUNICHI , HINO YOSHIMICHI , TADA TAKESHI , TANAKA RYOICHI , KAWAMOTO MASAO
IPC分类号： F23D14/66 , F23C7/06 , F23J3/04 , F23L15/02
摘要： PURPOSE:To obtain a heat storage type burner which enables operation normally for a long time by preventing a scale or the like contained in an exhaust gas from lowering the function of a heat storage body. CONSTITUTION:A heat storage chamber 4 is provided almost orthogonal to the direction of an exhaust gas flowing through a burner main pipe 2 of a burner unit 1 while having a heat storage body 5 arranged above the burner main pipe 2. A cyclone type dust trapper 3 is provided on the side of introducing the exhaust gas of the heat storage chamber 4.

7. 发明专利

JPH06194054A COMBUSTION CONTROL METHOD AND APPARATUS FOR HEATING 失效
公开(公告)号：JPH06194054A
公开(公告)日：1994-07-15
申请号：JP34705792
申请日：1992-12-25
申请人： NIPPON KOKAN KK , NIPPON FURNACE KOGYO KK
发明人： AKIYAMA SHUNICHI , TADA TAKESHI , TERAMOTO TOYOKAZU , SASAKI TAKETO , ISHIGUCHI YUKIO , MUTA KIYOSHI , TANAKA RYOICHI , KAWAMOTO MASAO
IPC分类号： F27B9/40 , C21D1/52
摘要： PURPOSE:To provide a combustion control method of a heating furnace and an apparatus therefor capable of arbitrarily controlling an in-furnace temperature pattern distributed longitudinally in the furnace. CONSTITUTION:There is provided a heating furnace 1 wherein the furnace is partitioned into a plurality of zones 2a-2d, and there are provided one or more of heat storage type alternate combustion burner systems in the respective zones 2a-2d each system serving to supply combustion air to burners 7a-7d through a heat storage member and exhaust combustion gas from the burners 7a-7b. Longitudinal temperature in the heating furnace l is detected by one or more of temperature detection means 16a-16d, 17a-17d provided in the respective zones 2a-2d. On the basis of a detection result, combustion of the heat storage type alternate combustion burner system in a corresponding zone is controlled and a longitudinal furnace temperature pattern in the heating furnace is controlled to a desired value.

8. 发明专利

JPH06159613A LOW NOX COMBUSTION METHOD AND BURNER USED FOR THE SAME 失效
公开(公告)号：JPH06159613A
公开(公告)日：1994-06-07
申请号：JP33488292
申请日：1992-11-24
申请人： NIPPON FURNACE KOGYO KK , NIPPON KOKAN KK
发明人： TANAKA RYOICHI , MATSUO MAMORU , SUDO ATSUSHI , YAHARA HITOSHI , KAWAMOTO MASAO , KIKUKAWA HIROKUNI , TADA TAKESHI , TERAMOTO TOYOKAZU , AKIYAMA SHUNICHI , ISHIGUCHI YUKIO , SASAKI TAKETO
IPC分类号： F23C99/00 , F23C11/00
摘要： PURPOSE:To enable NOx combustion lower than that of the prior art double stage fuel combustion method to be conducted. CONSTITUTION:At least one set of a heat accumulative type burner system in which combustion air is supplied through a heat accumulative member heated by heat of combustion gas is installed. Almost of all amounts of combustion air A of higher temperature than that of a normal combustion passed through the heat accumulating member is injected from a burner throat 6 and concurrently a primary fuel nozzle 1 directed toward an inner circumferential surface of the burner throat is opened and there is also provided a secondary fuel nozzle 2 for injecting directly a secondary fuel F2 inside the furnace while being substantially in parallel with the throat 6. Primary fuel F1 is injected from around a flow of combustion air A of high temperature so as to form a primary flame B1 around the combustion air A, the secondary fuel injected in parallel with the outside part is shielded against the combustion air, the primary fuel is ignited under an excessive air state and then NOx within the primary flame is reduced with the secondary fuel and at the same time the combustion air of high temperature and the secondary fuel are gradually mixed to each other so as to perform the secondary combustion B2.

9. 发明专利

JPH05245524A 失效
公开(公告)号：JPH05245524A
公开(公告)日：1993-09-24
申请号：JP4868492
申请日：1992-03-05
申请人： NIPPON KOKAN KK
发明人： SASAKI TAKETO , TANAKA KENJI , OKAZAKI YUKIHIKO
IPC分类号： B21B37/00 , B21B37/68 , B21B39/00 , B21B39/14
摘要： PURPOSE:To provide the meandering control device suitable for the material of thin thickness and broad width. CONSTITUTION:The equipment transferring the belt like material 6 at the hot or cold rolling time with a roller table 3, the meandering control device is provided with table rollers 4a-4c more than one piece of the roller table in freely steering upward and pressing rollers 1a-1b retreatably upward at the upper side.

10. 发明专利

JPH0441116A SLITTER STAND 失效
公开(公告)号：JPH0441116A
公开(公告)日：1992-02-12
申请号：JP14802790
申请日：1990-06-06
申请人： NIPPON KOKAN KK
发明人： SASAKI TAKETO
IPC分类号： B23D19/06
摘要： PURPOSE:To quickly position and accurately fix cutters by moving cutter holders and lock nuts to position the cutter holders and fastening the cutter holders with the lock nuts to fix the cutter holders to arbor shafts. CONSTITUTION:Four cutter holders 3 and four lock nuts 4 are fitted outside to pairs of upper and lower arbor shafts 2, respectively. That is, the cutter holders 3 fixed together with cutters 5 and the lock nuts 4 are fitted outside to the arbor shafts 2 with grooves 2b and female screws 3a loosely fitted thereto and moved to preset positions, respectively. Next, the cutter holders 3 are turned to thread male screws 2a to the female screws 3a for interlocking. After the cutters are positioned in this way, jigs 8 are fitted to the lock nuts 4, protruded portions 8a are locked to grooves in the lock nuts 4 and the lock nuts 4 are turned and fastened using the jigs 8. The cutter holders 3 are accurately fixed to preset positions on the arbor shaft 2, accordingly.

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