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1. 发明专利

JPH10292176A PREPARATION OF PLAN FOR TAKING OUT COKE, AND APPARATUS THEREFOR 失效
公开(公告)号：JPH10292176A
公开(公告)日：1998-11-04
申请号：JP10207397
申请日：1997-04-18
申请人： FUJITSU LTD , NIPPON KOKAN KK
发明人： MATSUMOTO SHUNJI , YAMAMOTO SHUICHI , TAKETOMI HIROFUMI , EBIHARA TAMEFUMI
IPC分类号： C10B33/00 , C10B41/00 , C10B57/00
摘要： PROBLEM TO BE SOLVED: To provide a method for preparing a plane for taking out coke for a plurality of coke ovens operated while being separated into a prescribed number of series according to the kind of cokes to be produced by which the need for knowledge acquiring operations can be eliminated to avoid such conditions that nothing is known at all until a solution is obtained, and practice is stopped at a suitable time and operations can be performed by using the best solution at the time as an actually adaptable one, and also an apparatus therefor. SOLUTION: Prescribed conditions for preparing a plan are inputted to produce operation blocks for successively operate pushers for charging coke into ovens for the coke with the first genetic algorism(GA) based on the conditions for preparing the plan and the arrangement order of the operation blocks is optimized to optimize the starting time in the allocatable time of the operation blocks in which the sequential order is optimized with the second GA. The operation blocks in the allocatable time are displayed for each series and a plan for pushing the coke, as necessary corrected, is transmitted to a computer for control capable of controlling the oven for the coke in the method for preparing the plan for pushing the coke comprising preparing the plan for pushing of the plural ovens for the coke operated in divisions into a prescribed number of series according to the kind of the produced coke.

2. 发明专利

JPH05194956A BENT RISER OF COKE OVEN 失效
公开(公告)号：JPH05194956A
公开(公告)日：1993-08-03
申请号：JP705892
申请日：1992-01-20
申请人： NIPPON KOKAN KK
发明人： TAKETOMI HIROFUMI , HATTORI MICHINORI , HASEBE SHINJI , MATSUMURA SUSUMU
IPC分类号： C10B27/06
摘要： PURPOSE:To provide a bent riser reduced in the deposition of carbon, etc., and requiring less frequent check, repair, etc., by coating the surface of its inside wall with a film comprising nitride ceramics and/or carbide ceramics. CONSTITUTION:A riser 5 to be shut with a cover 4 is attached to the opening 3 on the top of a coke oven 1 and connected to a gas collection pipe 7 through a bent riser 6. The surface of the inside wall of the riser 6 is coated with a film 8 of carbide ceramics, nitride ceramics or a combination thereof (exemplified by TiC, TiN or TiC+TiN). Thus, the bent riser 6 is reduced in the deposition of carbon, etc., and requires less frequent check, repair, etc., so that the coke oven gas can be smoothly recovered.

3. 发明专利

JPH04264194A METHOD FOR MONITORING GAS LEAKAGE FORM RISER OF COKE OVEN 失效
公开(公告)号：JPH04264194A
公开(公告)日：1992-09-18
申请号：JP2354991
申请日：1991-02-18
申请人： NIPPON KOKAN KK
发明人： HASEBE SHINJI , TAKETOMI HIROFUMI
IPC分类号： C10B41/08 , F27D21/00 , G01N21/84 , H04N7/18
摘要： PURPOSE:To monitor gas leakage from a riser of a coke oven. CONSTITUTION:A method for monitoring gas leakage under operation from a riser of a coke oven which discharges the air from a carbonization chamber in pushing out coke, comprising the steps of; taking a picture of the periphery of a top cover of the riser with a CCD camera; dividing the taken picture into a plurality of points; grasping the time change in luminance signals at each point; and judging the occasion of gas leakage when the number of the changed points exceeds a given number. The gas leakage can be accurately detected.

4. 发明专利

JPH0356587A METHOD FOR CHARGING COAL INTO COKE OVEN 失效
公开(公告)号：JPH0356587A
公开(公告)日：1991-03-12
申请号：JP19371489
申请日：1989-07-26
申请人： NIPPON KOKAN KK
发明人： NAKAJIMA RYUICHI , HASEBE SHINJI , TAKETOMI HIROFUMI
IPC分类号： C10B31/00 , C10B41/00
摘要： PURPOSE:To eliminate a partial excess and insufficient amount of charging coal and defective carbonization only and reduce heat quantity basic unit by determining average temperature between respective sections from measured values of oven wall temperatures of coke oven carbonization chambers and correcting the amount of the charging coal in the aforementioned sections. CONSTITUTION:Coke in each carbonization chamber 1 is discharged with a pusher. In the process, the upper, middle and lower temperatures of the oven wall are measured with a radiation type thermometer 4 provided in a ram head 3 and the resultant values are transmitted to the central arithmetic unit 5 where the average values of the oven wall temperatures of the respective sections are calculated. A correction coefficient of the amount of charging coal in the respective sections is calculated based on a difference between the average values and the previously inputted target temperatures of the respective sections to determine the actual amount charged, which is then transmitted to an automatic coal charging unit of a coal charging cart. The coal is charged from the respective coal charging ports 21, 22, 23 and 24 into the respective carbonization chambers while measuring the coal with a hopper scale of the coal charging cart. When the amount attains a prescribed value, a mining feeder is automatically stopped.

5. 发明专利

JPH0220592A METHOD FOR ESTIMATING MAXIMUM FLUIDITY COMBINED COAL 失效
公开(公告)号：JPH0220592A
公开(公告)日：1990-01-24
申请号：JP17056988
申请日：1988-07-08
申请人： NIPPON KOKAN KK
发明人： KATO TOMONORI , FUNABIKI YOSHIHIRO , TAKETOMI HIROFUMI
IPC分类号： C10B57/04
摘要： PURPOSE:To enable the production of a coke having a desired high strength by obtaining the logarithmic value of the flow temp. for each coal to be combined at each predetermined temp. between the flow initiating temp. and the solidifying temp., calculating weighted averages from the values to obtain the fluidities of combined coal and presuming the max. thereof as the max. fluidity of combined coal. CONSTITUTION:The flow curve for each coal to be combined is enciphered from the flow initiating temp., max. flow temp., solidifying temp. and fluidity thereof, thereby obtaining a numerical formula. On the basis of this formula, the logathmic value of the fluidity for each coal to be combined at each predetermined temp, between the flow initiating temp. and the solidifying temp. is calculated. Weighted averages are calculated from the resultant logathmic values of the fluidity to obtain the fluidities of combined coal. The max. of the obtd. fluidities of combined coal is presumed as the max. fluidity of combined coal. The above method enables the estimation of the max. fluidity accurately. As a result, it is possible to produce a coke having a desired high strength.

6. 发明专利

JPH11199333A REPAIRING MATERIAL FOR THERMAL SPRAYING 失效
公开(公告)号：JPH11199333A
公开(公告)日：1999-07-27
申请号：JP493398
申请日：1998-01-13
申请人： NIPPON KOKAN KK , SHINAGAWA REFRACTORIES CO
发明人： MIWA TORU , TAKETOMI HIROFUMI , TAKENAKA HIROSHI , AKIZUKI TOSHIHIKO , OSAKI YOSHIAKI
IPC分类号： C04B35/66 , F27D1/00
摘要： PROBLEM TO BE SOLVED: To obtain a thermal spraying material that has a low porosity, excellent hot abrasion resistance, compression strength, hot shear adhesion strength and heat shock resistance by using Chamotte fireclay and cordierite mixed powder as a refractory oxide powder in the thermal spray type repairing material comprising the refractory oxide powder and a readily oxidizable metal powder. SOLUTION: The formulation in the Chamotte fireclay and cordierite mixed powder is preferably 70-90 wt.% of Chamotte and 10-30 wt.% of cordierite. The Chamotte includes preferably 30-60 wt.% of Al2 O3 . If the content of Al1 O3 is in this range in Chamotte, good hot adhesion strength can be attained in the case that it is used for repairing the furnace walls of the coke furnace made of the Chamotte bricks. This refractory oxide powder melts at a relatively lower temperature than that of the conventional repairing material and becomes glassy by the metal spraying thereby forming melt-sprayed body resistant to peeling and clucks.

7. 发明专利

JPH09132780A METHOD FOR CHARGING COAL AND WASTE PLASTIC INTO COKE OVEN AND APPARATUS FOR LOADING COAL AND WASTE PLASTIC IN COAL CHARGING VEHICLE 失效
公开(公告)号：JPH09132780A
公开(公告)日：1997-05-20
申请号：JP29125395
申请日：1995-11-09
申请人： NIPPON KOKAN KK
发明人： ISHIGURO HIROKI , MATSUMURA SUSUMU , FUKADA KIYOSHI , TAKETOMI HIROFUMI
IPC分类号： C10B31/02 , C10B41/00 , C10B53/07 , C10B57/04 , C10G1/10 , C10B53/00
摘要： PROBLEM TO BE SOLVED: To dispense with the work to finely pulverize waste plastic in the charging of the waste plastic into a coke oven after mixing with coal and prevent the generation of clogging of a gas flow channel with an incompletely decomposed substance in the charging of a waste plastic on a red hot coke. SOLUTION: Raw materials filled in charge hoppers 11 containing waste plastic 51 at the lower part and coal 50 placed on the waste plastic are delivered in a manner same as the conventional raw material charging operation and the delivered raw materials are charged into a carbonization chamber 1. A layer composed mainly of the waste plastic is formed on the bottom of the carbonization chamber 1 and a layer composed mainly of coal is formed on the plastic layer.

8. 发明专利

JPH0552771A METHOD FOR MEASURING CRACK OF LUMP OF COKE 失效
公开(公告)号：JPH0552771A
公开(公告)日：1993-03-02
申请号：JP21824991
申请日：1991-08-29
申请人： NIPPON KOKAN KK
发明人： YAMATE YOSHITOMO , KAWAGUCHI YASUHIRO , ISHIGUCHI YUKIO , TAKETOMI HIROFUMI , MITANI NARIYASU , OGAWA MITSUGI
IPC分类号： G01N23/18 , G01N33/22
摘要： PURPOSE:To accurately measure the cracking degree of a lump of coke without assistance. CONSTITUTION:As X-rays are cast to a lump of cake for every predetermined interval, the penetrating X-rays are scanned. The distribution of the X-ray absorption coefficient in each cross section is measured. The cracking degree is evaluated from the existing ratio of the X-ray absorption coefficient of a predetermined value or lower. There are air holes and cracks in the crevice of the lump of cake. Since the X-ray absorption coefficient of the crack is larger than that of the air holes, the cracking degree can be evaluated by obtaining the existing ratio of the X-ray absorption coefficient of a predetermined value or lower. In this manner, the cracking degree of the lump of cake can be accurately evaluated easily without any help. Therefore, the cake of good quality can be produced if the producing condition is changed based on the evaluating result as an index.

9. 发明专利

JPH03212488A METHOD FOR CONTROLLING TEMPERATURE OF COKE OVEN GAS 失效
公开(公告)号：JPH03212488A
公开(公告)日：1991-09-18
申请号：JP904890
申请日：1990-01-18
申请人： NIPPON KOKAN KK
发明人： OSHIMA YOSHIHIRO , HASEBE SHINJI , TAWARA TSUTOMU , TAKETOMI HIROFUMI
IPC分类号： C10B57/18
摘要： PURPOSE:To optionally increase the amount of a recovered coke oven gas and tar without changing the coke oven gas composition by providing an indirect heating means and a blowing and cooling means for cooling coke oven gas in the upper space of a carbonization chamber and additionally providing a temperature controlling mechanism. CONSTITUTION:The temperature of a coke oven gas 21 is continuously sensed with a temperature sensor 24 and the sensed values are fed to a controlling mechanism 25 to issue a command to an indirect heating means 22 and blowing nozzles 23 for cooling the coke oven gas and control the temperature of the coke oven gas 21. Furthermore, it is necessary to mount the nozzles 23 at the end of a riser in a coke oven carbonization chamber 1 and the end on the opposite side. Thereby, the produced coke oven gas and cooling coke oven gas can be completely mixed.

10. 发明专利

JPH03210386A BENT RISER OF COKE OVEN 失效
公开(公告)号：JPH03210386A
公开(公告)日：1991-09-13
申请号：JP562990
申请日：1990-01-12
申请人： NIPPON KOKAN KK
发明人： OSHIMA YOSHIHIRO , HASEBE SHINJI , TAWARA TSUTOMU , TAKETOMI HIROFUMI
IPC分类号： C10B27/06
摘要： PURPOSE:To prevent pitch and carbon produced from generated gas from adhering to thereby dispense from the removal of carbon by coating the inner wall of a bent part of a bent riser with a wall release material and providing means for jet-cooling the inner wall. CONSTITUTION:A gas at a high temperature of about 800 deg.C which is generated from an opening 3 of the top of a coke oven is passed through a riser 1 and then through a bent part 22 and a vertical part 23 of a bent riser 21. Herein a cooling water from an annular slit nozzle 27 provided at an inlet end of the bent part 22 is jetted against the inner wall coated with a wall release material comprising a graphite coating material or a synthetic fluororesin in such a manner that the cooling water does not enter the riser 1, thereby cooling the inner wall to 300 deg.C or below. Then, even if pitch and carbon are produced from the generated gas, they do not adhere to the surface of the wall release material 24 and are washed away into the vertical part 23 by the jetted cooling water.

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