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1. 发明专利

JP2003112121A TROMMEL AND METHOD FOR SEPARATING WASTE BY USING THE SAME 审中-公开
公开(公告)号：JP2003112121A
公开(公告)日：2003-04-15
申请号：JP2001310849
申请日：2001-10-09
申请人： NIPPON KOKAN KK , NKK PLANT ENG CORP
发明人： YAMAZAKI SHIGEKI , NODA HIDETOSHI , NOMURA TAKURO , TAKUWA TOSHIAKI , YAMAMOTO SAKAE , TOYODA YUKIO
IPC分类号： B07B1/22 , B07B1/52
摘要： PROBLEM TO BE SOLVED: To provide a trommel made proof against clogging of sieve openings by tapes by a simple structure and to provide a method for separating wastes by using the trommel. SOLUTION: The trommel is the one that sieves the wastes introduced into the hollow of a rotary drum by many sieve openings piercing the peripheral wall and has a scraper that removes tapes contained in the wastes and clogging the sieve openings on passing. The trommel may be the above one wherein the scraper has a comb-like scraping member with scraping pieces arranged in the direction of the axis of the rotary drum, scraping the tapes, and confronting the sieve openings at their tips.

2. 发明专利

JP2003103520A METHOD FOR TREATING DISCARDED PET BOTTLE 审中-公开
公开(公告)号：JP2003103520A
公开(公告)日：2003-04-09
申请号：JP2001301420
申请日：2001-09-28
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , NODA HIDETOSHI , NOMURA TAKURO , TAKUWA TOSHIAKI , TOYODA YUKIO , YAMAMOTO SAKAE
IPC分类号： B65F5/00 , B29B17/00 , B29B17/02 , B29K67/00
摘要： PROBLEM TO BE SOLVED: To provide a method for treating a discarded PET bottle comprising a label releasing step or a bottle cleaning step suitable for the discarded PET bottle which is recovered from a mixture-recovered plastic waste or particularly in the case in which the surface is contaminated or a label remains attached to the surface as it is. SOLUTION: The method for treating the discarded PET bottle comprises the steps of collecting a bag in which the plastic waste containing the discarded PET bottle is sealed, destroying the bag to separate the solid plastic, sorting the bottle-like plastic, releasing the label attached to the bottle-like plastic, and further sorting the PET bottle. The method further comprises a step of cleaning the bottle-like plastic from which the label is released.

3. 发明专利

JP2002316095A SHAPE SORTER OF PLASTIC WASTE 失效
公开(公告)号：JP2002316095A
公开(公告)日：2002-10-29
申请号：JP2001125325
申请日：2001-04-24
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , NODA HIDETOSHI , NOMURA TAKURO
IPC分类号： B07B1/22 , B07B1/46 , B07B1/50
摘要： PROBLEM TO BE SOLVED: To provide a shape sorter of plastic wastes which is capable of continuously sorting bottle-like plastics from the plastic wastes with good accuracy without relaying upon manpower. SOLUTION: This sorter has an outer cylindrical section, an inner cylindrical section which is freely rotatably installed in parallel to the outer cylinder and is pierced with prescribed through-holes, a plastic feeding section which feeds the plastic wastes into the inner cylindrical section, a small-sized plastic recovering section which recovers the small-sized plastic wastes passing through the through-holes and a large-sized recovering section which recovers the plastic wastes failing to pass through the through-holes among the plastic wastes.

4. 发明专利

JP2002177704A DEFOAMING METHOD FOR WET TYPE GRAVITY SEPARATOR FOR WASTE PLASTIC 失效
公开(公告)号：JP2002177704A
公开(公告)日：2002-06-25
申请号：JP2000373930
申请日：2000-12-08
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , TOMA ICHIRO , FUJISAWA YOSHINARI , NODA HIDETOSHI , ABE MORIKAZU , NOMURA TAKURO , KURIYAMA ICHIRO , TERATSUJI KAZUHIRO
IPC分类号： B01D19/02 , B01D19/04 , B03B5/28 , B03B5/30
摘要： PROBLEM TO BE SOLVED: To provide a defoaming method by which foaming of a gravity liquid can be suppressed and the effect for suppressing the foaming can be maintained when plastic wastes containing chlorine are separated from mixed plastic wastes, which has been separated from industrial wastes or municipal wastes, by a gravity liquid circulation type gravity separation system. SOLUTION: The defoaming method comprises at least one of a process for charging a adsorbing agent capable of adsorbing a foaming component in the gravity liquid into the gravity liquid and adsorbing and removing the foaming component or a process for charging an acidic substance such as hydrochloric acid into the gravity liquid and controlling the pH of the gravity liquid to be acidic of =60 deg.C to remove the foaming component in the gravity liquid.

5. 发明专利

JP2000052346A COMPRESSION SUPPLY APPARATUS FOR FILM TYPE MIXED WASTE PLASTIC 失效
公开(公告)号：JP2000052346A
公开(公告)日：2000-02-22
申请号：JP22328698
申请日：1998-08-06
申请人： NIPPON KOKAN KK
发明人： KURIYAMA ICHIRO , NOMURA TAKURO , TSUBOI TOSHIO
IPC分类号： B09B3/00 , B29B17/00 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To obtain the subject apparatus for enhancing the treatment effect of a melting granulation apparatus. SOLUTION: A taper 7 for avoiding that film type mixed waste plastic 6 is held between the leading end part of a cylinder rod 2a and the leading end part 1a of a hopper 1 is provided at the upper part of the leading end part of the cylinder rod 2a. When the leading end part of the cylinder rod 2a passes the leading end part 1a of the hopper 1, the film 6 is not held between the cylinder rod 2a and the leading end part 1a of the hopper 1 by the action of the taper 7. By this constitution, since the film 6 is not held between the cylinder rod 2a and the leading end part 1a of the hopper 1, the shear fracture of the film 6 is not generated and a cylinder mechanism 2 requires no large power.

6. 发明专利

JP2002186878A WET TYPE SPECIFIC GRAVITY SEPARATION APPARATUS AND OPERATION METHOD THEREOF 失效
公开(公告)号：JP2002186878A
公开(公告)日：2002-07-02
申请号：JP2000388256
申请日：2000-12-21
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , NODA HIDETOSHI , TOMA ICHIRO , ABE MORIKAZU , NOMURA TAKURO
IPC分类号： B04B1/20 , B03B5/32 , B03B9/06 , B03D1/00 , B04B11/02 , B29B17/02
摘要： PROBLEM TO BE SOLVED: To provide a wet type specific gravity separation method and apparatus capable of easily and certainly discharging a floating substance such as plastics or the like in wet type separator for separating solid substances different in specific gravity contained in a medium liquid. SOLUTION: Solid substances different in specific gravity are charged in a rotary container along with the medium liquid and a solid substance, of which the specific gravity is less than that of the medium liquid, is floated toward the center-of-rotation side of the container and the floated solid substances is discharged out of the container by air streams. Further, the rotary shaft arranged in the rotary container is equipped with a mixture transport route for transporting the mixture of the solid substances into the container and compressed air is injected in the mixture transport route to feed the mixture to a floating substance discharge port by air streams based on compressed air.

7. 发明专利

JP2000052096A DRIVING METHOD OF DEVICE FOR COMPRESSING AND SUPPLYING FILM SYSTEM MIXED WASTE PLASTIC 失效
公开(公告)号：JP2000052096A
公开(公告)日：2000-02-22
申请号：JP22328798
申请日：1998-08-06
申请人： NIPPON KOKAN KK
发明人： KURIYAMA ICHIRO , NOMURA TAKURO , TSUBOI TOSHIO
IPC分类号： B09B3/00 , B29B7/72 , B29B17/00 , B30B9/28
摘要： PROBLEM TO BE SOLVED: To obtain a driving method of a device for compressing and supplying a film system mixed waste plastic in order to improve treatment effects of a molten grain device. SOLUTION: A given volume of a film 8 is detected by a light sensor 6, and inserted. After the insertion, a compressing cylinder rod 2a is moved from one side of a device body 4 to a position forwarded by a given interval 7 from a tip part 1a in a hopper 1 for compressing the film 8. At that time, since the film 8 is not sandwiched between the cylinder rod 2a and the hopper tip part 1a, shear fracture does not occur. Then, the compressing cylinder rod 2a is returned to one side of the device body 4, and the film 8 in the hopper 1 is dropped into a compression part 4a of the device body 4. By repeating the action in plural times, the total volume of the film 8 in the hopper 1 is accommodated in the compression part of the device body 4. Next, the compressing cylinder rod 2a is completely pushed into the other side of the device body 4, resulting in completion of compression. Thereby, since the film 8 is not sandwiched between the cylinder rod 2a and the tip part 1a of the hopper 1, the shear fracture does not occur and the cylinder mechanism 2 does not require a large power.

8. 发明专利

JP2002326058A DEVICE FOR AND METHOD OF SORTING BOTTLE SHAPED PLASTIC 失效
公开(公告)号：JP2002326058A
公开(公告)日：2002-11-12
申请号：JP2001135910
申请日：2001-05-07
申请人： NIPPON KOKAN KK
发明人： YAMAZAKI SHIGEKI , NODA HIDETOSHI , NOMURA TAKURO
IPC分类号： B07B13/11
摘要： PROBLEM TO BE SOLVED: To provide a method for and a device of sorting plastic waste which continuously and precisely sorts bottle shaped plastic from plastic waste without relying on man power. SOLUTION: This vibrational sorting device comprises a slant face which vibrates in the width direction and is inclined in the width direction and in the longitudinal direction and, therein, features that the waste plastic containing the bottle shaped plastic is fed to the upper part in the longitudinal direction of the slant face, the bottle shaped plastic which is relatively small in the coefficient of friction is moved downward in the width direction of the slant face, at the same time, is moved downward in the longitudinal direction and is recovered on the lower part in the width direction and on the lower part in the longitudinal direction of the slant face.

9. 发明专利

JP2000052345A COMPRESSION SUPPLY APPARATUS FOR FILM TYPE MIXED WASTE PLASTIC 失效
公开(公告)号：JP2000052345A
公开(公告)日：2000-02-22
申请号：JP22328598
申请日：1998-08-06
申请人： NIPPON KOKAN KK
发明人： KURIYAMA ICHIRO , NOMURA TAKURO , TSUBOI TOSHIO
IPC分类号： B09B3/00 , B29B17/00 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To obtain the subject apparatus for enhancing the treatment effect of a melting granulation apparatus. SOLUTION: An apparatus main body comprising a horizontal cylindrical body constituting a cylinder part and the cylinder mechanism 2 inserted into the apparatus main body 4 from one end thereof and having the compression cylinder rod 2a freely horizontally moved within the apparatus main body are provided and a hopper 1 is provided to the upper part of the apparatus main body and a film 9 is charged in the hopper to fall into the apparatus main body. A discharge port 5 comprising a vertical cylindrical body and the cylinder mechanism 3 having the discharge cylinder rod 3a vertically inserted into the discharge port from above and freely vertically moving within the discharge port are provided to the other end of the cylindrical apparatus main body and the film 9 charged in the hopper to fall into the apparatus main body is compressed in the compression part 4a of the apparatus main body by the compression cylinder rod. The compressed film is pushed downwardly by the discharge cylinder rod 3a to be supplied to a melting granulation apparatus.

10. 发明专利

JP2000052344A COMPRESSION GRANULATION METHOD FOR FILM TYPE WASTE PLASTIC 失效
公开(公告)号：JP2000052344A
公开(公告)日：2000-02-22
申请号：JP22328498
申请日：1998-08-06
申请人： NIPPON KOKAN KK
发明人： KURIYAMA ICHIRO , NOMURA TAKURO , TSUBOI TOSHIO
IPC分类号： B09B3/00 , B29B9/00 , B29B13/10 , B29B17/00 , B29B17/04 , B29K105/26
摘要： PROBLEM TO BE SOLVED: To obtain a film type waste plastic treatment method for enhancing the treatment effect of a melting granulation apparatus. SOLUTION: The film type waste plastic charged in a crusher 2 by a supply conveyor 1 is crushed into a proper size by the crusher 2 to be fed to an improper matter sorter 4 by a first transfer conveyor 3. Subsequently, foreign matter such as a metal or the like is sorted and removed by the improper matter sorter and the crushed plastic after sorting is introduced into a pressure type compressure supply apparatus by a second feed conveyor 5 and compressed by the compression supply apparatus 6 to increase the bulk density of the film type waste plastic. The film type waste plastic increased in bulk density is fed to a granulator 7 and the waste plastic heated and granulated by the granulator 7 is stored in a silo 9 by a third transfer conveyor 8 and blown into a blast furnace (not shown in a drawing) as a raw material. By this constitution, the bulk density of the film type waste plastic is increased by the compression supply apparatus and melting granulation efficiency is enhanced and a granulation treatment amt. is increased and handling becomes easy.

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