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1. 发明专利

JPH08239667A METHOD AND APPARATUS FOR REMOVING CARBON DEPOSITED ON CHARGING PORT OF COKE OVEN 失效
公开(公告)号：JPH08239667A
公开(公告)日：1996-09-17
申请号：JP7742795
申请日：1995-03-07
申请人： NIPPON KOKAN KK , FUKUYAMA KYODO KIKO
发明人： NAKATANI HIROSHI , URAYASU MASAHIRO , KOUHATA SANEMORI , NAKAO YUICHI
IPC分类号： C10B31/02 , C10B43/04
摘要： PURPOSE: To provide a method for removing carbon deposited on a charging port of a coke oven which can eliminate a danger and an environmental problem involved in removal of carbon deposited on the charging port by pushing-off using a crowbar by human power and burning-off utilizing air combustion and can safely and surely remove the deposited carbon in a short time by ejecting hard particulates towards a deposited carbon layer within the oven by a hard particulates ejection means. CONSTITUTION: The drawing is a side view of an apparatus for removing carbon deposited on the charging port of a coke oven. This apparatus comprises a particulate ejection nozzle mechanism A and a blast generating mechanism B. A coke oven 1 comprises an oven wall 1A, a charging port 1B, and a coke oven chamber 1C. The mechanism A has a particulate ejection nozzle 2 which can be inserted into the charging port 1B. A nozzle 2 is held on a body base 10 by means of a holder 3, and the inclination angle is variable by means of an inclination cylinder 4. The mechanism B comprises a hopper for storing and taking off particulates and a compressor for application of a high pressure gas. A mixed material comprising a coke powder and a blast material is suitable as the hard particulates.

2. 发明专利

JP2001252580A METHOD AND DEVICE FOR SHREDDING WASTE SYNTHETIC RESIN MATERIAL 失效
公开(公告)号：JP2001252580A
公开(公告)日：2001-09-18
申请号：JP2000067894
申请日：2000-03-13
申请人： NIPPON KOKAN KK
发明人： NAKATANI HIROSHI , KOYANAGI HOSHIYO , KANETANI GENJI
IPC分类号： B02C18/14 , B02C18/18 , B02C18/22 , B02C23/16 , B29B17/00 , B29B17/04
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for efficiently shredding a waste synthetic resin material in domestic refuse in a pretreatment process for feeding the resin material into a blast furnace or the like as fuel or a reducing material. SOLUTION: The waste synthetic resin material is compressed from two or more directions to be shaped in an individual piece of a prescribed shape. While this individual piece is pressed to the directions of both edges of rotary blades 8 rotating around a fixed shaft and first fixed blades 9 each paired with the rotary blade 8, it is shredded by the rotary blades 8 and the first fixed blades 9. The shredded pieces are housed and kept in a space between a partially cylindrical fixed screen, which is installed between the rotary blades 8 to leave a prescribed space, and of which the starting end is made to be adjacent to the first fixed blades 9, and the rotary blades 8 from the starting end of the fixed screen, and are sieved with the fixed screen at the same time to make them fall down. The shredded pieces which do not fall down from the sieve and move to the end edge of the fixed screen are further shredded by the rotary blades and second fixed blades 10, which are connected to the end edge part of the fixed screen, and each of which is paired with the rotary blade, to make their size smaller. In such a way, the shredded pieces are made to pass through the sieve meshes and fall down from the screen.

3. 发明专利

JPH09141519A ROLLED STEEL STRIP FISH TAIL DETECTING METHOD AND CUTTING DEVICE 失效
公开(公告)号：JPH09141519A
公开(公告)日：1997-06-03
申请号：JP30139895
申请日：1995-11-20
申请人： NIPPON KOKAN KK , FURUSHIMA TEKKOSHO KK
发明人： NAKATANI HIROSHI , NAKAYAMA YASUTOSHI , SHIMADA TAKASHI , KAWAGUCHI ATSUSHI , ASANO MASASHI
IPC分类号： B23D36/00
摘要： PROBLEM TO BE SOLVED: To execute cutting of a fish tail at a good yield so as to attain labor saving and high efficiency. SOLUTION: A fish tail 1a of a rolled steel strip 1 is photographed by a CCD camera 2, and a luminance change part is extracted on the basis of an image signal 3 inputted to an image processing device 4 and a cutting position setting device 5. The shape of the fish tail 1a is judged from the continuous state of extracted luminance change points, and the continuous state of the luminance change points is classified by directions and the number of continuity to eliminate invalid luminance change points caused by disturbance such as rust, soil and the like on the surface of the rolled steel strip 1, thus improving shape detecting accuracy. The detected result is converted into X-Y coordinates, and the maximum value of a curve on the X-Y coordinates is qualified as the tip of the fish tail 1a, while the minimum value of the curve is qualified as a bottom part of the fish tail 1a, and the fish tail 1a is cut by cutting mechanism C receiving a cutting signal 6 qualifying the bottom part as a cutting position, and an alignment signal 7.

4. 发明专利

JPH095154A ADAPTIVE TYPE DIRECTIONAL SOUND DETECTOR 失效
公开(公告)号：JPH095154A
公开(公告)日：1997-01-10
申请号：JP15567995
申请日：1995-06-22
申请人： NIPPON KOKAN KK
发明人： NISHIMURA TAKUICHI , ISHINO KAZUNARI , KABEYA KAZUHISA , NAKATANI HIROSHI
IPC分类号： G01M99/00 , G01H17/00 , H04R1/40 , G01M19/00
摘要： PURPOSE: To provide a handy adaptive type directional sound detector with an improved S/N ratio by catching a sound from a noise source with a directional microphone. CONSTITUTION: A first directional acoustic sensor 1 is arranged as input signal microphone facing an apparatus to be detected with directivity. Then, a second directional acoustic sensor 2 which detects noises produced from wide-ranging noise sources without detecting the sound of the apparatus to be detected is arranged on the reverse side of the first directional acoustic sensor. After amplified by an amplifier 5, signals (an input signal 3 and a reference signal 4) from microphones are inputted into an A/D converter 6 to be digitized. The resulting signals are sent to an electronic computer 7 and noise components in the input signal are erased by an adaptive type noise canceler processing using an LMS algorithm in the computer 7 to be outputted as output signal 8.

5. 发明专利

JPH08189779A DEVICE FOR DISMANTLING REFRACTORY LINING 失效
公开(公告)号：JPH08189779A
公开(公告)日：1996-07-23
申请号：JP349795
申请日：1995-01-12
申请人： KOBE STEEL LTD , SUMITOMO METAL IND , KAWASAKI STEEL CO , NIPPON KOKAN KK , YAMAMOTO ENG WORKS
发明人： FUKUMORI KOJI , OKUDA KATSUJI , NAKATANI HIROSHI , KOTO HIROYUKI , SHOJI SHIGEO , SHIBAOKA FUMIO , FUJII KEIICHI , OKADA TOSHITAKE , ITO RYOJI , MIYAGAWA YUTAKA , KAWAKAMI HIROMI , YATAYA YOSHIKAZU
IPC分类号： E04G23/08 , B22D35/00 , B22D41/02 , C21B7/06 , C21B7/14 , F27D1/16
摘要： PURPOSE: To prevent generation of an excessive bending stress in the framework of a crushing means, caused by the reaction force received by the crushing means from refractory material, so as to make the device as a whole compact and improve the dismantling ability of the crushing means. CONSTITUTION: In a dismantling device 1 for a refractory lining a crushing means 5 is provided in a framework 4, the framework 4 being placed over a container 3 lined with a refractory material 2 which leaves a clear inside space 9 enclosed by the bottom 7 and upright side wall 8 and the crushing means 5 having a cutting tool 25 for cutting the refractory material 2 from inside outward and provided in a manner of being movable vertically and horizontally inside the clear inside space 9. In this framework 4 grounding means 6 are provided, which are set from inside plane against plane firmly on the upright side wall 8 of the refractory material 2 in grounding.

6. 发明专利

JP2002052531A METHOD FOR CONTROLLING OPERATION OF COOLING DEVICE FOR GRANULAR PLASTIC MOLDED MATERIAL 失效
公开(公告)号：JP2002052531A
公开(公告)日：2002-02-19
申请号：JP2000239695
申请日：2000-08-08
申请人： NIPPON KOKAN KK
发明人： TADOKORO KENICHIRO , KANETANI GENJI , NAKATANI HIROSHI , KOYANAGI HOSHIYO
IPC分类号： B09B3/00 , B01J2/00 , B01J2/20 , B09B5/00 , B29B17/00
摘要： PROBLEM TO BE SOLVED: To develop a method for controlling the operation of a cooling device for a granular plastic molded material, keeping the quality of a granular plastic raw material and ensuring high productivity. SOLUTION: The stock amount of the granular plastic molded material stored in the cooling tank of a cooling device and the temperature of the granular plastic molded material in the bottom part of the tank are detected and, on the basis of the detection data related to the stock amount and the detection data related to the temperature, the granular plastic molded material in the tank is delivered from the cooling tank. The vertical cooling tank 10 is used and a stock level is used as an index of the stock amount of the granular plastic molded material in the tank to set the predetermined height position L(Height) above the vicinity of the bottom surface of the cooling tank and the predetermined height position H at the upper part of the cooling tank, and the predetermined height position L(Temp.) above the vicinity of the bottom surface of the tank is set as the detection position of the temperature T of the granular plastic molded material in the bottom part of the tank and the granular plastic molded material is delivered from the cooling tank on the basis of the detection data of the height position L(Height), H and L(Temp.).

7. 发明专利

JP2002046126A MANUFACTURING PLANT FOR GRANULAR PLASTIC STOCK FOR BLOW CHARGING INTO FURNACE AND METHOD FOR OPERATING THE SAME 失效
公开(公告)号：JP2002046126A
公开(公告)日：2002-02-12
申请号：JP2000232883
申请日：2000-08-01
申请人： NIPPON KOKAN KK
发明人： TADOKORO KENICHIRO , KANETANI GENJI , NAKATANI HIROSHI , KOYANAGI HOSHIYO
IPC分类号： B29B17/00 , C10L5/48
摘要： PROBLEM TO BE SOLVED: To develop a high productivity granulating facility capable of dealing with an operation of a practical blast furnace by efficiently manufacturing a granular plastic molding by a ring die granulator, and a method for operating the same. SOLUTION: A manufacturing plant for a granular plastic stock for blow charging into a furnace comprises a dryer 8 of a spent and pretreated plastic 1a provided at an upstream side of a line of a granulating machine 14 having the ring die granulator, and a storage unit 11 provided at an upstream side of the machine 14 at a downstream side of the dryer 8. The plant also comprises a cooling unit 24 of the granular plastic molding 18 at the downstream side of the line of the machine 14, and further a granulating facility 3 having a plurality of the machines in parallel. The method for operating the plant comprises the steps of starting to drive the facility by an automatic start and stopping to drive the facility by an automatic stop after sensing that predetermined starting conditions and stopping conditions from the downstream of the line are respectively satisfied.

8. 发明专利

JP2000046810A ULTRASONIC FLAW DETECTION APPARATUS 失效
公开(公告)号：JP2000046810A
公开(公告)日：2000-02-18
申请号：JP21556598
申请日：1998-07-30
申请人： NIPPON KOKAN KK
发明人： NAKATANI HIROSHI , ISHIDA SHIGEO , MURAKAMI NAOHIKO
IPC分类号： G01N29/24
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flaw detection apparatus capable of simplifying the arranging work of an apparatus machinery and capable of easily performing a flaw detection test successively by arranging a plurality of steel panels. SOLUTION: An ultrasonic flaw detection apparatus is equipped with a probe holder 1 having an ultrasonic probe detecting the ultrasonic echo of a steel panel 9 to be tested and a laser target 2 for detecting the position of the steel panel to be tested, a plurality of laser beam projection detectors 3 arranged outside the steel panel 9 in order to project laser beam on the laser target 2 to detect the position thereof, a position detector 4 detecting the positions of the detectors 3 from the detection results thereof and an operator 5 converting the position detection results corresponding to an ultrasonic echo to the position of the steel panel 9. Further, a monitor gate discriminating the echo with respect to the ultrasonic echo, a flaw judging circuit for judging a flaw from the echo height of the discriminated echo and a beam path length and a flaw display means are provided.

9. 发明专利

JPH108115A METHOD FOR CHARGING MUD MATERIAL INTO MUD GUN FOR BLAST FURNACE AND ITS APPARATUS 失效
公开(公告)号：JPH108115A
公开(公告)日：1998-01-13
申请号：JP15711296
申请日：1996-06-18
申请人： NIPPON KOKAN KK
发明人： NAKATANI HIROSHI , TOMIOKA KOICHI , KAWAHARA SUSUMU , KAMIKAWA TAKESHI , UESUGI NORIMI
IPC分类号： C21B7/12
摘要： PROBLEM TO BE SOLVED: To provide a apparatus for surely and automatically charging mud material for plugging an iron tapping hole of a blast furnace into a mud gun by necessary and suitable number. SOLUTION: This charging method is executed by charging the block-state mud material into a cylinder of the mud gun for pressing-in the mud material 7 to plug the iron tapping hole 4 after completing the iron tapping. In such a case, the mud material charged into the cylinder of the mud gun is detected on a conveying machine 10 with an optical sensor 13 and number of the mud materials are calculated with this detected signal and, while judging whether the setting number of mud materials are conveyed within a setting time or not, the mud material is discharged into a pallet 6 and charged into the mud gun.

10. 发明专利

JPH0931508A METHOD FOR REMOVING SLAG IN MOLTEN SLAG TROUGH FOR METALLURGICAL FURNACE 失效
公开(公告)号：JPH0931508A
公开(公告)日：1997-02-04
申请号：JP17901395
申请日：1995-07-14
申请人： KAWASAKI STEEL CO , SUMITOMO METAL IND , NIPPON KOKAN KK , KOBE STEEL LTD , MITSUI MIIKE MACHINERY CO LTD
发明人： FURUYA JUNICHI , MASUMOTO SHINICHI , SHIJIYOU HIDETOSHI , KONDO ATSUSHI , NAKATANI HIROSHI , TOMIOKA KOICHI , TOGO TAMIO , YAMAGATA HITOAKI , YOSHIDA TOSHIHIRO , UENO KENJI
IPC分类号： C21B7/14 , F27D1/16
摘要： PROBLEM TO BE SOLVED: To efficiently execute the crush and the removal of slag in a trough by executing the rotation of drums in a specific condition, at the time of rotating one pair of parallel vertical drums fitting many edges in a special arrangement on the outer periphery in the molten slag trough. SOLUTION: One pair of parallel vertical drums 1a, 1b fitting many attached edges 2a, 2b in the spiral arrangement on the outer periphery are rotated in the molten slag trough 13 to crush and remove the slag in the trough. At this time, the relations among interval (d) of the attached edges 2a, 2b in the axial direction of each of the drums, pitch (p) of the attached edges in the circular direction of each of the drums, the number of revolution (n) of each of the drums, feeding velocity (v) in each of the drums, crushing slag size D and crushing torque T are beforehand obtd. related to the objective trough 13 and slag. The drums 1a, 1b are driven under condition, in which the crushed slag max. size D is the fixed size or less and the crushing torque T becomes the min. Then, it is desirable to be in the range of 10-200mm (d), 100-400mm (p), 100-250rpm (n), 1-1.5m/min (v) and 50-150mm D. By this method, the crushed slag is made to fine grain so as to execute the suction and the cleaning.

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