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51. 发明专利

JPH0849821A DEVICE AND METHOD FOR TREATING WASTE 失效
公开(公告)号：JPH0849821A
公开(公告)日：1996-02-20
申请号：JP18327694
申请日：1994-08-04
申请人： MITSUI SHIPBUILDING ENG
发明人： TAKAHASHI YOICHI , TEZUKA NORIO , HATTA NAOKI , SUZUKI TAKESHI
IPC分类号： F23G5/027 , F23G5/14 , F23G5/46
摘要： PURPOSE:To provide the waste treating technology, higher in a power generating efficiency than conventional super waste power generating technology, by a method wherein a direct heating system, self supplying the heat of thermal decomposition by burning a part of low-temperature distillation gas produced by the thermal decomposition is employed in the waste treating technology, in which the thermal decomposition of the waste is carried out heat energy produced by burning the products of the thermal decomposition is converted into an electric power to recover it. CONSTITUTION:A combustor 11 burns a part of low-temperature distillation gas produced in a thermal decomposition reactor 2, employing a part of waste gas of combustion of another combustor 35 after driving a gas turbine 29 as combustion air. The waste gas of combustion is introduced directly into wastes in thermal decomposition reactor 2 through a combustion waste gas supplying tube 16 and is used for a heat source for effecting the thermal decomposition of the waste. The combustion waste gas of the combustor 35 is employed for the combustion air of the other combustor 55. Accordingly, the combustion waste gas after driving the gas turbine 29 is changed into high-temperature combustion waste gas by the combustion of the final combustor 55 and is used as the heat source of production of steam for driving a steam power generator 50 as it is.

52. 发明专利

JPH0777317A METHOD OF COMBUSTING POWDER FUEL 失效
公开(公告)号：JPH0777317A
公开(公告)日：1995-03-20
申请号：JP22171493
申请日：1993-09-07
申请人： MITSUI SHIPBUILDING ENG
发明人： MURATA KATSUHIDE , TEZUKA NORIO , TAKAHASHI YOICHI , NONAKA MASAAKI
IPC分类号： F23D17/00 , F23G5/50
摘要： PURPOSE:To execute a safety operation by stabilizing combustion, by setting an induced draft fan inducing an exhaust gas of a combustion furnace, by thus preventing a backfire through regulating to a negative pressure an inside of the combustion furnace and making a powder fuel disperse by feeding to a burner a compressed air at a backfire generating time. CONSTITUTION:In the case where a combustion of a powder fuel having a minute particle state of a waste plastic included in a general waste material or a pulvevized coal is executed, a powder fuel 1 stored in a feeder 11 and fed by a disk rotated by a motor 12 is sent and supplied to a burner 7 of a combustion furnace 10 through a controlling valve 5 with a conveyed air 3 from a conveyance air fan 2 and is subjected to a combustion. At this time, an exhaust gas 13 in the combustion furnace 10 is made to be induced to an induced draft fan 8 and an inside of the combustion furnace 10 is regulated to a negative pressure and a backfire generation is prevented. However, at a generation of a backfire, by closing the controlling valve 5 a powder fuel feeding is made to be stopped and instead of a conveyance air 3 a compressed air 15 is fed through a compressed air controlling valve 6 to the burner 7, and a spontaneous extinction of the backfire is made to be executed.

53. 发明专利

JPH0771728A BURNER 失效
公开(公告)号：JPH0771728A
公开(公告)日：1995-03-17
申请号：JP21942993
申请日：1993-09-03
申请人： MITSUI SHIPBUILDING ENG
发明人： MURATA KATSUHIDE , TEZUKA NORIO , TAKAHASHI YOICHI , NONAKA MASAAKI
IPC分类号： F23D17/00 , F23G7/12
摘要： PURPOSE:To facilitate ignition to waste plastics, so as to enable a stable combustion by arranging nozzles for spraying liquid on the outer periphery of a nozzle for injecting powder. CONSTITUTION:A gas burner is ignited by a spark of high-pressure electricity, and then fuel oil burners 4 are successively ignited by the gas burner. Next, solid waste plastics crushed into the grain diameter of 1mm or less are injected from a powder injection nozzle 10 by air for conveyance and then ignited by the fuel oil burners 4, and the combustion air amount from combustion air pipes 11 is adjusted, thereby the waste plastics are completely burnt. A thin plastic waste which is some millimeters square, other than powder-like one, for example, a plastic waste obtained by crushing a PET bottle or that obtained by crushing a plastic film can be used as the waste plastics. Thereby ignition to the waste plastics can be easily performed, and a stable combustion can be performed.

54. 发明专利

JPH0771720A BURNER 失效
公开(公告)号：JPH0771720A
公开(公告)日：1995-03-17
申请号：JP21943093
申请日：1993-09-03
申请人： MITSUI SHIPBUILDING ENG
发明人： MURATA KATSUHIDE , TEZUKA NORIO , TAKAHASHI YOICHI , NONAKA MASAAKI
IPC分类号： F23D1/00
摘要： PURPOSE:To enable powder fuel of low melting point to be prevented from being melted, adhered and molten at the extremity end of a burner for igniting the fuel. CONSTITUTION:The extremity end of a burner cylinder 1 is formed by a ring 2 made of porous ceramics having a length of about 5 to 50 mm. The burner cylinder is connected to a double-walled structure where cooling water is flowed. As porous ceramics, it is preferable to apply a sintered member of alumina system. The length l of the ring 2 made of porous ceramics is properly defined in reference to a diameter of the burner and inputted heat.

55. 发明专利

JPH06304489A METHOD FOR PULVERIZING PLASTIC MATERIAL 失效
公开(公告)号：JPH06304489A
公开(公告)日：1994-11-01
申请号：JP12051093
申请日：1993-04-23
申请人： MITSUI SHIPBUILDING ENG , PLAST SHIYORI SOKUSHIN KYOKAI
发明人： MURATA KATSUHIDE , TEZUKA NORIO , SATO KENJI , KAJI MITSUO
IPC分类号： B02C13/18 , B02C18/00 , B29B13/10 , B29B17/00 , B29B17/04 , B29K105/26 , B02C18/44
摘要： PURPOSE:To provide a method for pulverizing plastic material wherein the kind of the applicable plastic material is not limited and the mean particle diameter of particles is regulated to the desirable size of the degree not larger than specified mum and also the plastic material is treated at a low cost. CONSTITUTION:A mixed raw material being in a state wherein respective plastic materials having different elasticity or impact resistance such as low density polyethylene, high density polyethylene, polypropylene, polystyrene, polyethylene, terephthalate and polyvinyl chloride are mixed is coarsely crushed in particle diameter of about 5 mm by a coarse crusher 2. Thereafter the coarse granular material obtained after coarse crushing is mechanically pulverized at ordinary temperature by a pulverizer using an internal classification method wherein shearing force and impact force become main stress controlling pulverization. Fine powder obtained after such pulverization is taken out through a bag filter 3 and a blower 4.

56. 发明专利

JPH0633078A METHOD FOR TREATING PLASTIC AND APPARATUS THEREFOR 失效
公开(公告)号：JPH0633078A
公开(公告)日：1994-02-08
申请号：JP18532492
申请日：1992-07-13
申请人： MITSUI SHIPBUILDING ENG
发明人： MURATA KATSUHIDE , TEZUKA NORIO , SATO KENJI , KATO YUICHI
IPC分类号： C10L1/32 , C10L10/18
摘要： PURPOSE:To obtain a method for treating a plastic capable of carrying out combustion treatment of the plastic in a stable state and capable of obtaining fuel excellent in handleability for transportation, storage, etc. CONSTITUTION:A plastic waste matter 11 is crushed with a crusher 20 and successively pulverized with a pulverizer 30 to afford a plastic pulverized material 13. This plastic pulverized material 13 is mixed with a liquid 40 containing a surfactant in a mixing tank 50 to afford a slurry-like fuel 52, which is subjected to combustion treatment.

57. 发明专利

JPH0633069A METHOD FOR TREATING PLASTIC 失效
公开(公告)号：JPH0633069A
公开(公告)日：1994-02-08
申请号：JP18532592
申请日：1992-07-13
申请人： MITSUI SHIPBUILDING ENG
发明人： MURATA KATSUHIDE , TEZUKA NORIO , SATO KENJI , KATO YUICHI
IPC分类号： C10G1/10 , C10L1/00 , C10L10/18
摘要： PURPOSE:To provide a method for treating a plastic by which combustion treatment of the plastic can be carried out in a stable state and a fuel excellent in handleability such as transportation and storage can be obtained. CONSTITUTION:A plastic waste 11 is coarsely crushed and the resultant coarsely crushed plastic 12 is pressurized to provide a plastic 13 in a semimolten state, which is then thermally melted or dissolved in a melting and decomposing vessel 30 to afford a liquid plastic material 14 directly usable as a liquid fuel. Furthermore, the material 14 is cooled with water 51 in a spray tower 50 to provide a fine particulate solid 15, which is mixed with a liquid 72 containing a surfactant to afford a slurry fuel 16. The obtained slurry fuel 16 is then sprayed and burned in a combustion furnace 90.

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