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1. 发明专利

JPH0790388A HEAT TREATMENT FURNACE FOR ROUND STEEL COIL 失效
公开(公告)号：JPH0790388A
公开(公告)日：1995-04-04
申请号：JP23693293
申请日：1993-09-22
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： TAKEUCHI OSAMU , YAMAMURA IKUO , IURA TORU , OGUSHI MASAKI , SUGANUMA TAKAYUKI , ISHIGURO MORIYUKI
IPC分类号： C21D1/00 , C21D1/74 , C21D1/767 , C21D9/00 , C21D9/52
摘要： PURPOSE:To provide a heat treatment furnace for round steel coil, by which the charge and the ejection of the round steel coil into the furnace are stabilized and simplified and the quality and the productivity of a heat-treated product from the round steel coil are improved. CONSTITUTION:This heat treatment furnace has a furnace body 1, into which the round steel coil M can be charged so as to be put sidewise and is provided with a C type hook 19 hanging the round steel coil M so as to be freely charged to and ejected from the furnace body 1, lattice-like coil receiving bases 3 capable of supporting the round steel coil M put sidewise and a pushing device, 14, etc., capable of adjusting at least the axial directional dimension of the round steel coil M.

2. 发明专利

JPS62199715A INSTALLATION FOR BILLET HEATING FURNACE 失效
公开(公告)号：JPS62199715A
公开(公告)日：1987-09-03
申请号：JP4084586
申请日：1986-02-26
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： TAKEUCHI OSAMU , YAMAMURA IKUO , WAKATSUKI HARUO , TERAUCHI TAKUMASA
IPC分类号： C21D1/00
摘要： PURPOSE:To contrive operation with an optimum heat pattern and to economize energy by disposing a preheating furnace and heating furnace in parallel, providing an ejection port of the preheating furnace and a charging port of the heating furnace to the side walls so as to face each other and providing a charging port to be exclusively used for hot billets to the other side. CONSTITUTION:The preheating furnace 1 and the heating furnace 2 are disposed in parallel so as to partly overlap the same. The cold billet charging port 3 is provided to the rear end of the preheating furnace 1 and the ejection port 7 is provided to the side face opposite to the heating furnace 2. The charging port 8 is provided to the heating furnace 2 so as to face the ejection port 7. The hot billet charging port 16 is further provided to the wall part of the preheating furnace 1 on the side opposite from the ejection port 7. The cold billets are heated by passing the preheating furnace 1 and the heating furnace 2 and after the hot billets enter the preheating furnace 1, the hot billets are immediately ejected therefrom and enter the heating furnace 2 where the hot billets are heated respectively to prescribed temps. The billets are thereafter ejected from the furnace and are fed to a rolling mill 20. Both the cold billets and the hot billets are heated with the optimum heat pattern according to the above-mentioned mechanism.

3. 发明专利

JPS60162119A HEAT RECOVERY DEVICE FOR HEATING FURNACE 失效
公开(公告)号：JPS60162119A
公开(公告)日：1985-08-23
申请号：JP1660584
申请日：1984-02-01
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , NIPPON KOKAN KK
发明人： YAMAMURA IKUO , NOMATA KATSUHIKO , MATSUO TOSHINORI , KANDA JIROU , NAKANISHI HIROAKI
IPC分类号： F23L15/00
摘要： PURPOSE:To reduce heat loss, by a method wherein the partition walls of a heating furnace are cooled by means of the air, and the air, heated resulting from cooling, is aded to a combustion air in the heating furnace. CONSTITUTION:Partition walls 2, serving to partition a combustion control zone, are located to the ceiling of a heating furnace 1, and a cooling air flow passage 3 is installed in each partition wall 2. An amount of the air for cooling, fed to a pipe 5 with the aid of a cooling fan 4, is regulated by a control valve 6, such air is fed in each cooling air flow passage 3 through a pipe 7 and flows through a pipe 8 and a valve 9 into a mixer 10 where the open air sucked through an open air intake pipe 11 is supplied. Such air is fed to a combustion air blower 13 through a pipe 12, the air flows in a heat recovery device 16, mounted to a flue duct 15, through a pipe 14, and the air is fed as the air for combustion, to a burner 18 of the heating furnace 1 through a pipe 17. Since the air, increased in temperature resulting from cooling of the partition wall, is used as the air for combustion of a burner, the air for combustion is increased in temperature, and this enables saving of energy.

4. 发明专利

JPS62288483A HEARTH ROLL 失效
公开(公告)号：JPS62288483A
公开(公告)日：1987-12-15
申请号：JP12967886
申请日：1986-06-04
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： TAKEUCHI OSAMU , YAMAMURA IKUO
IPC分类号： F27B9/24 , C21D1/00

5. 发明专利

JPS6077914A HEATING FURNACE 失效
公开(公告)号：JPS6077914A
公开(公告)日：1985-05-02
申请号：JP18552383
申请日：1983-10-04
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YAMAMURA IKUO
IPC分类号： C21D1/00 , C21D1/52 , F23L1/00 , F27D1/00
摘要： PURPOSE:To improve heat efficiency of furnace by providing a hollow body sealing external peripheral surface of a ceiling wall and furnace bed wall of a furnace body and transporting air to a branch pipe from an air duct relaying the air with the hollow body. CONSTITUTION:A heating furnace is constituted of a furnace body 1, hollow bodies 6, 6' sealing the external peripheral surface of the ceiling wall 11 and furnace bed wall 12, air ducts 4, 4' with outlets connected to the hollow bodies 6, 6' so as to supply fuel and air from an air feeding source to the inside of the hollow bodies 6, 6', plural numbers of branch pipe 5 having inlets connected to the hollow bodies 6, 6' so as to discharge the air in the hollow bodies 6, 6' and plural numbers of burner 2 for heating the inside of the furnace 1 each connected to the outlet of the branch pipe 5.

6. 发明专利

JPS5996213A METHOD FOR DRIVING MOVABLE BEAM IN WALKING BEAM TYPE HEATING FURNACE 失效
公开(公告)号：JPS5996213A
公开(公告)日：1984-06-02
申请号：JP20461382
申请日：1982-11-24
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YAMAMURA IKUO
IPC分类号： C21D1/00 , F27B9/20 , F27B9/24
摘要： PURPOSE:To reduce the cycle time of walking beams and to improve the operating efficiency of a walking beam type heating furnace which moves an object to be heated by increasing the speed in vertical movement of the movable beam in said furnace in a no-load period. CONSTITUTION:Movable beams 3 which are movable vertically and longitudinally are provided in a walking beam type heating furnace 1 of a movable hearth system which moves an object 4 to be heated in a longitudinal direction. The upward moving speed of each beam 3 is decelerated just before the beam 3 goes flush with the top level 5 of a stationary beam 2 in the upward moving stage of the beam 3. The object 4 is placed on the beam 3 and the upward movement is completed at that speed. The downward moving speed of the beam 3 is accelerated right after the top level of the beam 3 goes flush with the level 5 in the downward moving stage of the beam 3, and the object 4 is placed thereon, then the beam is moved downward at the accelerated speed.

7. 发明专利

JPH03153824A BILLET HEATING FURNACE 失效
公开(公告)号：JPH03153824A
公开(公告)日：1991-07-01
申请号：JP29425789
申请日：1989-11-13
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YAMAMURA IKUO
IPC分类号： C21D1/52 , C21D9/00 , F27B9/24
摘要： PURPOSE:To uniformly heat a billet while effectively preventing the overheating of its both ends by providing plural axial burners in parallel on the wall surface of the nose part of the billet heating furnace in a skid group and a side burner on both side wall surfaces and separately controlling the combustion of the burners. CONSTITUTION:The inside of a furnace casing 1 is separated by a nose part 2 into plural zones 3-5, and the axial burner 6, roof burner 7, etc., for blowing off a combustion flame are arranged in the zones. A billet 8 to be treated is transferred in the casing 1 by a transfer mechanism 9 toward the axial outlet 11 from an inlet 10. In this billet heating furnace, the mechanism 9 consists of the moving support 15 of a moving beam 14 and a fixed support 16, and the billet is supported by the skid buttons 13 on horizontal skids 12. Plural axial burners 20 are provided in parallel on the wall surface of the nose part 2 at the intermediate position in the cross direction of the furnace in the skid 12 group, and a side burner 21 is furnished on both side wall surfaces of the casing 1. The fuel supplies to the burners 20 and 21 are separately controlled based on the temps. of the intermediate part in the cross direction of the furnace and the furnace temps. on both sides to uniformly heat the billet 8.

8. 发明专利

JPS6350412A WALKING BEAM TYPE HEATING FURNACE 失效
公开(公告)号：JPS6350412A
公开(公告)日：1988-03-03
申请号：JP19589086
申请日：1986-08-21
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YAMAMURA IKUO
IPC分类号： C21D1/00 , B65G25/02 , F27B9/24
摘要： PURPOSE:To reduce the skid mark on a steel billet by arranging plural posts with interlock as movable vertically at extracting hole side in a furnace, specifying the max. ascending position for the post and holding the steel billet to the post and a walking beam alternately. CONSTITUTION:The steel billet S is carried and heated in the furnace by the walking beam 11 and a fixed beam 12. At the extracting hole side in the furnace body 10, about three pieces or more of posts 21 supporting as receiving the steel billet S by ends thereof from the walking beam 11 are arranged as movable vertically by a rising/falling cylinder 23. Therefore, the steel billet S carried to near the extracting hole is carried on the posts 21 from the walking beam 11 and at the time of confirming, that the billet is surely laid on the posts 1 by a sensor 24, the steel billet S is held alternately by the posts 1 and the walking beam 11, to execute soaking treatment. Further, at the time of positioning, where the posts 1 are the max. height, the consideration is necessary for the relative positions, so as not to cast a shadow of the beam 15 of walking beam 11 on the steel billet S. In this way, the heat received by the lower face of steel billet S is gereally uniformized, and the homogeneous temp. of the steel billet S is improved and the skid mark is reduced.

9. 发明专利

JPS60169521A SEALING DEVICE FOR SLAB INLET AND OUTLET OF HEATING FURNACE 失效
公开(公告)号：JPS60169521A
公开(公告)日：1985-09-03
申请号：JP2588584
申请日：1984-02-14
申请人： ISHIKAWAJIMA HARIMA HEAVY IND , IWAKUNI SEISAKUSHO KK
发明人： YAMAYA ETSUO , YAMAMURA IKUO
IPC分类号： C21D1/00 , C21D9/00 , F27D1/18
摘要： PURPOSE:To provide a titled device which improves the thermal efficiency of a heating furnace by the constitution in which sealing curtains are doubly provided to the bottom end of a door body for opening and closing the outlet and inlet of the furnace so as to contact gradually the sealing curtain arriving at the pass line for the slab and the slab. CONSTITUTION:An outside sealing curtain 16 arriving at the pass line 4 of a slab 2 and an inside sealing curtain 15 having the length at which the curtain arrives gradually at the slag 2 and is hardly interfered by the passage thereof are provided doubly to the bottom end of a door body 5 for opening and closing an extraction port 3 for the slab 2 of a heating furnace body 1. The door body 5 closing the port 3 is driven by a motor 9 so as to ascend and a cylinder 21 is actuated to bring a sealing table 17 supported by an arm 18 into tight contact with the body 1 in the stage of extracting the slab 2. An extractor is then inserted into the furnace through a notch 22 provided with a sealing cloth 23 of the table 17 to extract the slab 2 by lifting the curtain 16. The construction is similar in the stage of charging the slab 2 into the body 1. The passage of the gas through the slab inlet and outlet is thus suppressed and the thermal efficiency of the furnace is improved.

10. 发明专利

JPS58102020A EXHAUST GAS TREATING APPARATUS FOR ARC FURNACE 失效
公开(公告)号：JPS58102020A
公开(公告)日：1983-06-17
申请号：JP20117581
申请日：1981-12-14
申请人： ISHIKAWAJIMA HARIMA HEAVY IND
发明人： YAMAMURA IKUO
IPC分类号： F23N5/00 , F23G5/50 , F23G7/06
摘要： PURPOSE:To burn CO gas with minimum possible amount of air within a range free from explosion of the CO gas by controlling the amount of cool air flowing in according to deviation in comparison with the preset concentration of CO gas detected in a gas from a combustion column. CONSTITUTION:The concentration of CO gas is preset for a CO gas concentration indicator/adjusting meter 15 in a range of allowing no explosion beforehand. If the amount of air flowing in from a cool air inflow duct 13 is small, CO gas generated from an arc furnace 1 remains in a combustion column 5. This CO is detected with a detector 14 and compared with the preset, concentration of CO gas in the CO gas concentration indicator/adjusting meter 15 and a cool air flow control valve 12 is opened according to the deviation signal. When the amount of air flowing in from a cool air inflow duct 13 is too much, the cool air flow control valve 12 is reduced according to a detection value of a CO gas detector 14. This enables the combustion of CO gas with minimum possible amount of air within a range free from the explosion of the CO gas.

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