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1. 发明专利

JP2001220589A BULKED MATERIAL WHICH SURFACE CONTAINS SYNTHETIC RESIN AND IS MELTED-SOLIDIFIED AND ITS PREPARATION PROCESS 失效
公开(公告)号：JP2001220589A
公开(公告)日：2001-08-14
申请号：JP2000033559
申请日：2000-02-10
申请人： NIPPON KOKAN KK
发明人： NAKATANI HIROSHI , KOYANAGI HOSHIYO , KANETANI GENJI , ASANUMA MINORU , TOMA ICHIRO , ABE MORIKAZU
IPC分类号： B09B3/00 , C10L5/48
摘要： PROBLEM TO BE SOLVED: To provide a bulked material which surface contains a synthetic resin which improve the burning rate in a raceway, and is melted-solidified and to provide its preparation process. SOLUTION: The bulked material which surface contains a synthetic resin and is melted-solidified has an enough strength to reach a specific reign in the raceway when it is blown into the furnace and an enough particle size to oblation a velocity not less than the limited flow velocity at the same time.

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

JP2002066368A METHOD OF CONTROLLING OPERATION FOR SPENT PLASTIC CRUSHING DEVICE 失效
公开(公告)号：JP2002066368A
公开(公告)日：2002-03-05
申请号：JP2000260200
申请日：2000-08-30
申请人： NIPPON KOKAN KK
发明人： TADOKORO KENICHIRO , KANETANI GENJI , NAKATANI HIROSHI , KOYANAGI HOSHIYO
IPC分类号： B02C18/22 , B02C18/00 , B29B17/00 , B29B17/04 , B02C18/44
摘要： PROBLEM TO BE SOLVED: To provide a method of controlling the operation for a spent plastic crushing device to keep the prescribed throughput stably. SOLUTION: When a pusher sets in a forward movement, a time necessary for the forward movement is counted. In the case that the forward movement limit of the pusher is not input to a limit switch within a fixed time (10 sec in the example of the fig.), that is in the case the pusher cannot reach the forward movement limit, the descending action of a wing is stopped and ascends by a distance equivalent to 0.5 sec of the descending rate from the position. In next 11 sec, the wing ascends by the distance equivalent to 0.5 sec to lead the pusher to the forward movement limit by repeating the wing ascending actions.

4. 发明专利

JP2002059421A METHOD FOR OPERATING GRANULAR PLASTIC GRANULATION APPARATUS 失效
公开(公告)号：JP2002059421A
公开(公告)日：2002-02-26
申请号：JP2000246652
申请日：2000-08-16
申请人： NIPPON KOKAN KK
发明人： TADOKORO KENICHIRO , KANETANI GENJI , NAKATANI HIROSHI , KOYANAGI HOSHIYO
IPC分类号： B29B9/00 , B01J2/20 , B29B17/00
摘要： PROBLEM TO BE SOLVED: To develop a method for controlling the operation of a granular plastic molded article granulation apparatus for keeping the quality of a granular plastic raw material and ensuring high productivity. SOLUTION: A storage device 11 is arranged on the upstream side of a granulation apparatus 12 and a plurality of softening/melting/extrusion molding type granulators are used as granulators 13 and, when granulation operation abnormality is generated in a part of the granulators during granulation operation, this operation abnormality is detected and the gragulator having generated granulation operation abnormality is changed over to a manual operation mode on the basis of the granulation operation abnormality and, therafter, it is detected that the granulation operation abnormality is returned to a normal condition and the granulator returned to the normal condition is changed over to an automatic operation mode from the manual operation mode to continue the operation of the granulation apparatus in the automatic operation mode. A drying device 19 for drying moisture adhering to plastics is provided on the upstream side of the storage tank provided on the upstream side of the granulation apparatus and, further, a forcible cooling device 20 for a plastic molded article is provided on the downstream side of the granulation apparatus line.

5. 发明专利

JP2002036238A GRANULATION INSTALLATION FOR USED PLASTICS AND ITS OPERATION METHOD 失效
公开(公告)号：JP2002036238A
公开(公告)日：2002-02-05
申请号：JP2000225120
申请日：2000-07-26
申请人： NIPPON KOKAN KK
发明人： TADOKORO KENICHIRO , KANETANI GENJI , NAKATANI HIROSHI , KOYANAGI HOSHIYO
IPC分类号： B30B11/20 , B29B17/00 , B29B17/04 , C21B5/00 , C22B1/248
摘要： PROBLEM TO BE SOLVED: To provide a high productivity granulation installation which is equipped with a ring die granulation machine for efficiently manufacturing granular plastic moldings and thereby, is capable of dealing with the operation of a practical blast furnace as well as its operation method. SOLUTION: A storage device 8 for used plastics 4 which are through with a pretreatment is installed at the line upstream side of a granulation device 5' equipped with the ring die granulation machine and a cooling device 7 for the granular plastic moldings 6 is installed at the line downstream side of the granulation device 5'. In addition, the granulation installation 1 is of such a type that a plurality of the granulation devices 5' and 5" are arranged in parallel. The operation of the installation 1 is started from the line downstream side in each of the devices 5' and 5" and is stopped from the line downstream side in each of the devices 5' and 5" in the automatic start and the automatic stop mode respectively after detecting the fact that specified start and stop conditions are satisfied.

6. 发明专利

JP2001322125A APPARATUS FOR SEPARATING WASTE PLASTIC 失效
公开(公告)号：JP2001322125A
公开(公告)日：2001-11-20
申请号：JP2000144687
申请日：2000-05-17
申请人： NIPPON KOKAN KK , TATSUMI AIR ENGINEERING KK
发明人： NAKATANI HIROSHI , KANETANI GENJI , KOYANAGI HOSHIYO , NODA YASUHIRO
IPC分类号： B09B5/00 , B04C5/14 , B04C5/22 , B29B17/02
摘要： PROBLEM TO BE SOLVED: To provide a plastic separator optimum for separating a plastic. SOLUTION: An inlet 11 wherein a gas flow in which a waste plastic is intermingled flows in, a waste plastic outlet 12 from which the separated plastic is discharged, and outflow openings 13, 13 wherein the gas flow from which the waste plastic is separated are provided to a casing 7. A cage rotor 9 wherein a filter 8 through which the gas flow passes is wound on an outer periphery is provided inside the casing 7, and a stripping roller 10 wherein an inside of the casing 7 is made airtight and besides the separated plastic is discharged, is provided to a discharge opening 12 of the casing 7. A rotating passage for rotating the gas flow alowwed to flow in from the inlet 11 is formed between the outer peripheral face and the inner peripheral face 7a of the easing 7. A flowout passage 26 for introducing the gas flow passed through the filter 8 to the outflow openings 13, 13 is formed to the casing 7. The waste plastic is made along the inner peripheral face 7a of the casing 7 by the gas flow rotated by the rotating passage 14, and the stripping roller discharges the plastic made along the inner peripheral face 7a.

7. 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.).

8. 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.

9. 发明专利

JP2002059422A METHOD FOR OPERATING GRANULATION APPARATUS IN PLANT FOR MANUFACTURING GRANULAR PLASTIC RAW MATERIAL BLOWN AND CHARGED INTO INDUSTRIAL FURNACE 失效
公开(公告)号：JP2002059422A
公开(公告)日：2002-02-26
申请号：JP2000246653
申请日：2000-08-16
申请人： NIPPON KOKAN KK
发明人： TADOKORO KENICHIRO , KANETANI GENJI , NAKATANI HIROSHI , KOYANAGI HOSHIYO
IPC分类号： B29B17/00 , B01J2/00 , B01J2/20 , B29B17/04 , C21B5/00 , C22B1/14
摘要： PROBLEM TO BE SOLVED: To develop a method for controlling the operation of a granular plastic molded article granulation apparatus for keeping the quality of a granular plastic raw material and ensuring high productivity. SOLUTION: A storage device 6 is arranged on the upstream side of a granulation apparatus 7 and a softening/melting/extrusion molding type granulor is used as a granulator 9 and, when it is detected that the raw material charged into the granulator 9 is reduced to a predetermined amount or less or ready to reduce to the predetermined amount or less, the standby operation of the granulator constituted so as to suppress the lowering of the temperature of the die and extrusion fixture of the granulator is started. As the standby operation, operation for starting the operation of the granulator is performed for a predetermined time while a substance constituted of a material, which is a granular substance different from the charged raw material and has hardness less than that of the die and the extrusion fixture like rice bran and has physical properties not melted when extruded during the starting of the granulator, is supplied to the granulator.

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