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61. 发明专利

JP2001318077A ANALYZING METHOD OF WASTE 失效
公开(公告)号：JP2001318077A
公开(公告)日：2001-11-16
申请号：JP2000137212
申请日：2000-05-10
申请人： NIPPON KOKAN KK
发明人： HIRAYAMA ATSUSHI , SHIOMITSU TORU , IWASAKI TOSHIHIKO
IPC分类号： G01N27/62 , G01N33/00
摘要： PROBLEM TO BE SOLVED: To provide an analyzing method of waste capable of easily quantifying hazardous organic matters contained in the waste in a short time. SOLUTION: This analyzing method of waste is characterized in that organic compounds are volatilized by heating the waste contaminated with the hazardous organic matters in a flowing gas, that the gas containing the volatilized organic compounds is analyzed by a flame ionization detector, and that at least one kind of the organic matters contained in the waste is quantified based on the total amount of organic compounds found through the analysis by the detector.

62. 发明专利

JP2001212430A METHOD FOR TREATING WASTE GASES OF WASTE INCINERATION FURNACE AND EQUIPMENT FOR THE SAME 失效
公开(公告)号：JP2001212430A
公开(公告)日：2001-08-07
申请号：JP2000026170
申请日：2000-02-03
申请人： NIPPON KOKAN KK
发明人： AYUKAWA SUSUMU , AKIYAMA HAJIME , HIRAYAMA ATSUSHI , SHIOMITSU TORU , IWASAKI TOSHIHIKO
IPC分类号： F23G5/44 , B01D53/34 , B01D53/68 , B01D53/70 , B01D53/86 , F23G5/46 , F23J15/00
摘要： PROBLEM TO BE SOLVED: To provide a method for treating waste gases of a waste incineration furnace by which vapor of a high temperature and high pressure may be obtained, energy consumption is reduced and organic chlorine compounds, such as dioxins, may be removed without discharging the same to the outside of the system, and an equipment for the same. SOLUTION: This equipment has an acidic gas removing agent feeding device 12 which feeds an acidic gas removing agent for high temperature into a flow passage of the waste gases discharged from the waste incineration furnace 10, a high- temperature dust collector 11 which is introduced with the waste gases fed with the acidic gas removing agent for high temperature and subjects the gases to a dust collection treatment, a waste heat boiler 14 which is introduced with the waste gases discharged from the high-temperature dust collector 11 and recovers the heat thereof, a catalytic reactor 15 which is introduced with the waste gases discharge from the waste heat boiler 14 and cracks the organic chlorine compounds, a heat recovering device 16 which recovers the heat from the waste gases discharged from the catalytic reactor 15 and an active carbon adsorption column 17 which removes the hazardous components in the waste gases after the heat recovery.

63. 发明专利

JP2000126691A DRY SEPARATION OF WASTE PLASTIC BY SPECIFIC GRAVITY AND SHAPE 失效
公开(公告)号：JP2000126691A
公开(公告)日：2000-05-09
申请号：JP30653598
申请日：1998-10-28
申请人： NIPPON KOKAN KK
发明人： TATEFUKU TERUO , YAMAZAKI SHIGEKI , IWASAKI TOSHIHIKO
IPC分类号： B09B5/00 , B03B4/00 , B07B4/08 , B07B7/12 , B07B13/08 , B29B17/00
摘要： PROBLEM TO BE SOLVED: To separate plastics from the waste plastics in the general and industrial wastes in accordance with their kinds. SOLUTION: Air 10 is introduced into a tower 1a from its lower face, pulsated air 5 is simultaneously introduced from the side face of the tower 1a, and the air 10 and pulsated air 5 are injected into the waste plastics 6 in the lower 1a to form a fluidized bed 2 of the waste plastics 6, the waste plastic 6 are vibrated by the pulsated air 5 introduced from the side face of the fluidized bed 2 so that the waste plastics are separated into a plastic A and a plastic B. The pulsation frequency of the pulsated air 5 and the flow rate of the air 10 and pulsated air 5 are controlled to separate the plastics into the desired kinds. A chlorine-contg. plastic is separated from the waste plastics with high efficiency in this way.

64. 发明专利

JP2000126688A DRY SEPARATION OF WASTE PLASTIC BY SPECIFIC GRAVITY AND SHAPE 失效
公开(公告)号：JP2000126688A
公开(公告)日：2000-05-09
申请号：JP30652498
申请日：1998-10-28
申请人： NIPPON KOKAN KK
发明人： TATEFUKU TERUO , YAMAZAKI SHIGEKI , IWASAKI TOSHIHIKO
IPC分类号： B07B4/08 , B29B17/00 , B29K101/00 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To separate and classify plastics from the waste plastics in the general and industrial wastes. SOLUTION: Pulsated air 5 is introduced into a tower 1a from its lower face, an ascending air current 7 is injected on the waste plastics 6 in the tower 1a to form a fluidized bed 2 of the waste plastics 6, the ascending air current 7 introduced from below the fluidized bed 2 is pulsated to vibrate the waste plastics 6 so that the waste plastics are separated into a plastic A and a plastic B. The pulsation frequency and flow rate of the ascending air current are controlled to separate the plastics into desired kinds. A chlorine-contg. plastic is separated from the waste plastics with high efficiency in this way.

65. 发明专利

JPH11156850A METHOD FOR GRANULATING WASTE PLASTIC FILM 失效
公开(公告)号：JPH11156850A
公开(公告)日：1999-06-15
申请号：JP32565697
申请日：1997-11-27
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , IWASAKI TOSHIHIKO , AKIYASU YASUSHI , OGAKI YOJI , UEHARA HATSUO , OKUYAMA KEIICHI , YOSHINAGA YOICHI
IPC分类号： B29B9/12 , B29B13/04 , B29B13/10 , B29B17/00 , B29B17/04 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To reduce a residual ratio and to granulate efficiently by a method in which a material consisting mainly of waste plastic films is agitated in a closed granulator and cooled after melting. SOLUTION: Waste plastic films are crushed into an appropriate size and, after metal and others being separated, are supplied from the hopper 3 of a granulator 1 to the granulator 1 through a valve 4. After the supply, valves 4, 6, 8 are closed to make the granulator 1 closed, agitating blades 2 are rotated, and plastics are melted by the frictional heat of the agitation. When the plastics are melted into rain drops, the valve 8 is opened to introduce cooling water and others into the granulator l to cool the molten plastics. In this process, paper and powdery plastics are caught by the molten plastics to be granulated. When the mixture is cooled sufficiently, the valve 6 is opened, and granules are transported to a sweeping apparatus 5.

66. 发明专利

JPH1119934A DEVICE FOR SEPARATELY RECOVERING WASTE PLASTIC BOTTLE 失效
公开(公告)号：JPH1119934A
公开(公告)日：1999-01-26
申请号：JP17398597
申请日：1997-06-30
申请人： NIPPON KOKAN KK
发明人： AOKI AKIO , FUJISAWA YOSHINARI , IWASAKI TOSHIHIKO , NOTO TAKASHI
IPC分类号： G01N21/90 , B07C5/36 , B09B5/00 , B29B13/10 , B29B17/00 , B29K101/00 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To separate and recover waste plastic vessels for recycling use. SOLUTION: A waste plastic vessel conveyed from a waste plastic vessel accepting part passes through a conveying pipe 7a and then a conveying pipe 7b, in the midway during its conveying through which its color is detected with a color detector 9 and then its material is detected with a material detector 11. Next, the waste plastic vessel is conveyed to an assorting part B equipped with an assorting compartment 13 and a foreign matter compartment 40. In response to the information of colors and materials obtained with the detectors 9 and 11 in the midway of the conveying pipe 7b, the waste plastic vessels conveying in an assorting passage 43 are blown with the airs injected from the nozzle 1A 14 and from a nozzle 1B 15 into an assorting compartment 1 13a, an assorting compartment 2 13b and the like so as to be assorted and recovered. Further, waste plastic vessels, which do not reach the standard of a vessel, is discharged to a foreign matter compartment 40. Since eddy current develops in the conveying pipes 7a and 7b by the action of an eddy current former 12 provided in the conveying pipe 7a, the waste plastic vessels are aligned at certain intervals and conveyed, resulting in executing easy detection and assortment.

67. 发明专利

JPH10259901A METHOD AND APPARATUS FOR RECOVERING HEAT OF FLUIDIZED BED 失效
公开(公告)号：JPH10259901A
公开(公告)日：1998-09-29
申请号：JP6472197
申请日：1997-03-18
申请人： NIPPON KOKAN KK
发明人： IWASAKI TOSHIHIKO , MATSUI SATOSHI , NOTO TAKASHI , SUZUKI YASUO , AKIYAMA HAJIME
IPC分类号： F22B1/02 , F23C10/18 , F23G5/30 , F23G5/46 , F23J7/00
摘要： PROBLEM TO BE SOLVED: To facilitate replacement work of a heat exchanger tube while preventing entanglement of incombustible on the heat exchanger tube by a method wherein the heat exchanger tube to be arranged in a fluidized bed of an incinerator is inserted vertically into a fluidized bed from a furnace wall part, a heat receiving medium flows in downward through the heat exchanger tube from the furnace wall part and is made to flow out upward via a curved part. SOLUTION: A fluidized bed type incinerator 11 performs an incineration treatment of combustible wastes such as city garbage in sand forming a fluidized bed 15. In this process, a heat exchanger tube 14 is inserted vertically from a horizontal part 13 of a wall of the furnace, steam for recovering heat flows downward through the heat exchanger tube 14 from the horizontal part 13 of the furnace wall, upward via a curved part 20 and then, is made to flow out from the horizontal part 13 of the furnace wall. Thus, the vertical insertion of the tube heat exchanger tube 14 into a sand layer can prevent the entanglement of incombustible in the sand layer on the heat exchanger tube 14 without closing a vertically moving fluid medium. In addition, a coupling part with the horizontal part 13 of the furnace wall is taken off to pull out the heat exchanger tube 14 thereby easily implementing the replacing of the heat exchanger tube 14 as well.

68. 发明专利

JPH10258426A METHOD FOR GRANULATING GRANULAR MATTER OF POLYETHYLENE AND POLYPROPYLENE FROM WASTE PLASTIC 失效
公开(公告)号：JPH10258426A
公开(公告)日：1998-09-29
申请号：JP6839497
申请日：1997-03-21
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , IWASAKI TOSHIHIKO , OKUYAMA KEIICHI
IPC分类号： B03B5/30 , B29B9/10 , B29B13/10 , B29B17/00 , B29B17/04 , B29K23/00 , B29K27/06 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To granulate granular matter of PE and PP by separating chlorine-containing plastic and PE and PP from waste plastic. SOLUTION: A film-like plastic is charged in a charging hopper 1 to be crushed into a particle size of 50mm or less by a crusher 2 and the crushed plastic is transferred to a washing and mixing tank 4 by a blower 3. The crushed plastic is stirred by a stirrer 5 within a washing and mixing tank 4 and melted at the same time by a specific gravity soln. held to temp. equal to or higher than the melting points of PE and PP to become liquid droplet matter. The liquid droplet matter of PE and PP mixed by the stirrer 5 and other chlorine-containing plastic (PVC) pieces are transferred to a separation tank 7 by a pump 6 and the liquid droplet matter of PE and PP low in specific gravity is separated from the chlorinecontaining plastic high in specific gravity by specific gravity difference within the separation tank 7 to rise and cooled to below the m.p. thereof within a cooling pipe 8 to be molded and granulated into a granular matter with a particle size of 6mm or less. The granulated matter is separated from the specific gravity soln. by a vibration screen 9. The chlorine- containing plastic pieces separated from PP and PE are discharged from the lower part of the separation tank 7.

69. 发明专利

JPH10235645A SPECIFIC GRAVITY SEPARATION METHOD FOR PLASTIC WASTE 失效
公开(公告)号：JPH10235645A
公开(公告)日：1998-09-08
申请号：JP3765397
申请日：1997-02-21
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , OKUYAMA KEIICHI , IWASAKI TOSHIHIKO
IPC分类号： B09B5/00 , B02C23/08 , B03B5/28 , B03B7/00 , B07B13/08 , B29B17/00 , B29K105/26 , C08J11/04
摘要： PROBLEM TO BE SOLVED: To improve separation efficiency and remove plastics containing chlorine from plastic waste by using a specific gravity liquid heated within a specified range of temperatures when separating by specific gravity harmful plastics containing chlorine for combustion or blowing in a blast furnace from discarded plastics. SOLUTION: Plastic waste loaded into a hopper 1a is loaded into a crusher 2 by a conveyer 1. The plastic waste crushed to the appropriate size (5-50mm) by the crusher 2 is loaded into a mixing tank 5 through a blower 3 and a cyclone 4 and the crushings are mixed and dispersed into a specific gravity liquid heated at 300-100 deg.C, preferably 70 deg.C or higher by a heater with the help of a stirrer 6. The specific gravity liquid mixed with the crushings is sent to the supply sperture 9 of a body specific gravity separation tank 8 using a pump 7 and is separated to the upper part and the lower part of the interior of the specific gravity tank 8 in accordance with a specific gravity difference from the specific gravity liquid. Metal pieces and stone are separated from the specific gravity liquid by an oscillating sieve 11 and the separated specific gravity liquid passes through piping 13 to be sent to a specific gravity recovery container 14.

70. 发明专利

JPH10225933A METHOD FOR WATER TREATMENT OF WET TYPE SPECIFIC GRAVITY CLASSIFICATION PROCESS FOR PLASTIC WASTE 失效
公开(公告)号：JPH10225933A
公开(公告)日：1998-08-25
申请号：JP3060197
申请日：1997-02-14
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , FUJISAWA YOSHINARI , IWASAKI TOSHIHIKO , OKUYAMA KEIICHI
IPC分类号： B09B5/00 , B03B5/28 , B29B13/10 , B29B17/00 , B29K27/00 , B29K101/10 , B29K101/12 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To reduce loading to a water treatment facility in after-processes by treating conveniently and inexpensively water used for separation and removal of chlorine-contg. plastics from plastic waste. SOLUTION: As a plastic for water treatment, polyethylene(PE) and polypropylene(PP) are used. The plastic for water treatment is introduced into an input hopper 1 and an input hopper 2. The plastic for water treatment is crushed by means of a crusher 3 below the hopper 1 and pulverization is performed by means of a crusher 4 for pulverization of the hopper 2. Then, crushed and pulverized plastics are added in a washing and mixing tank 5 wherein specific gravity liq. (water) is placed. The crushed and pulverized plastics added are stirred by means of a stirrer to adsorb stain substance in the specific gravity liq. and they are transferred into a separation tank 6. The crushed and pulverized plastics discharged from the top of the separation tank 6 are separated from the specific gravity liq. as they adsorb stain ingredients. The stain substances are discharged outside as they are adsorbed on the crushed and pulverized plastics and then, they are treated at high temp. and are made to be harmless as a raw fuel for a furnace.

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