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11. 发明专利

JP2001065832A WASTE PROCESSING SYSTEM AND WASTE PROCESSING METHOD 失效
公开(公告)号：JP2001065832A
公开(公告)日：2001-03-16
申请号：JP24104899
申请日：1999-08-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： KASAI TAKAKUNI , BANDAI SHIGEMI , MIYAMOTO MANABU
IPC分类号： B09B3/00 , C10J3/00 , C10K1/10 , F23G5/00 , F23G5/027 , F23G5/033 , F23G5/44
摘要： PROBLEM TO BE SOLVED: To provide a waste fuel processing system where corrosion of a melting furnace wall and an evaporation tube of a boiler is prevented from happening, and a waste fuel processing system where the through-put of waste fuel is larger. SOLUTION: A waste processing system is adapted to include a supplier 4 for supplying waste fuel, a dry distillation furnace 1 for drying and gasifying waste fuel supplied from the supplier 4, a combustion melting furnace 10 for combusting and melting char left behind in the dry distillation furnace 1, and a desalting apparatus 3 for desalting gas produced by drying. In the system, there is further provided a desalting apparatus 9 between the dry distillation furnace 1 and the combustion and melting furnace 10 for further desalting char. Further, there is provided means upstream the supplier 4 for finely granulated waste fuel.

12. 发明专利

JPH11148619A COMBUSTION MELTING FURNACE 失效
公开(公告)号：JPH11148619A
公开(公告)日：1999-06-02
申请号：JP31978297
申请日：1997-11-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： BANDAI SHIGEMI , KASAI TAKAKUNI , MIYAMOTO MANABU
IPC分类号： F23G5/00 , F23G5/02 , F23G7/06 , F23J1/00
摘要： PROBLEM TO BE SOLVED: To discharge molten slag at low temperature in a combustion melting furnace where char is combusted using refuse dry distillation gas as a fuel, and ash and metal are melted and guided to a slag reservoir. SOLUTION: A feeder 11 for adding borax B is provided on a char supply pipe 10 for feeding airborne char to a char supply hole 2 in a combustion melting furnace. The char is combusted in the combustion melting furnace, and although ash involved in the char is melted and is forced to flow down from a throat 6 to a slag reservoir 9, borax B added to the char lowers a melting point of the produced char with the aid of char combustion.

13. 发明专利

JPH08261441A BOILER FURNACE WALL HAVING ABRASION REDUCING STRUCTURE FOR HEAT TRANSFER TUBE 失效
公开(公告)号：JPH08261441A
公开(公告)日：1996-10-11
申请号：JP6586795
申请日：1995-03-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： MIYAMOTO MANABU , KATAYAMA HIROYUKI , KOBAYASHI YOSHIBUMI
IPC分类号： F23M5/00
摘要： PURPOSE: To provide a boiler furnace wall having the abrasion reducing structure of a heat transfer tube, which reduces the abrasion of the heat transfer tube on the upper surface of refractory at the corner of a combustion chamber. CONSTITUTION: Heat transfer tubes 1 in a combustion chamber are connected by fins 4 and form the heat transfer wall 5 of the combustion chamber. Refractory 2, covering the heat transfer tubes 1, is applied on the lower part of the combustion chamber 3 while the corner part is provided with a corner configuration 6, cut by 135 deg., which has been 90 deg. conventionally. Grains in the combustion chamber 3 drop along the heat transfer tube wall 5 and form a slanted surface while being accumulated on the upper surface 2a of the refractory 2, then, dropping grains are contacted with the heat transfer tubes 1 while moving on the slanted surface and cause local abrasion at the corner part especially, however, the corner part is larger than the conventional 90 deg. and is wide whereby the speed of the grain, moving on the slanted surface, is reduced and local abrasion is also reduced.

14. 发明专利

JPH06109210A FLUIDIZED BED COMBUSTION APPARATUS 失效
公开(公告)号：JPH06109210A
公开(公告)日：1994-04-19
申请号：JP25807192
申请日：1992-09-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： ICHIMURA SHIGEKATSU , MIYAMOTO MANABU
IPC分类号： F22B1/02 , F23C10/00 , F23C11/02
摘要： PURPOSE:To adequately burn unburnt combustibles and relax restrictions such as a particle size distribution, speificial velocity, and the like with respect to a flowing material and fuel. CONSTITUTION:A fluidized bed combustion apparatus comprises a combustion chamber l, in which fuel burns on a fluidized bed, a dust collector 3 for separating from combustion gases a flowing material and unburnt combustibles contained in the combustion gases, and a heat exchanger 5 for absorbing heat of the combustion gases leaving the dust collector 3. Air containing therein oxygen is charged into combustion gases between an outlet of the combustion chamber and an inlet of the heat exchanger through a nozzle 8.

15. 发明专利

JPS63169412A FUEL FEEDING METHOD 失效
公开(公告)号：JPS63169412A
公开(公告)日：1988-07-13
申请号：JP31074286
申请日：1986-12-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： HASEGAWA KOJI , ARAKAWA YOSHIHISA , MIYAMOTO MANABU
IPC分类号： F23C10/18 , F23C10/22
摘要： PURPOSE:To vaporize a moisture content on the surface of solid fuel by means of a sensible heat by particles, by a method wherein high temperature particles collected from combustion exhaust gas exhausted from a fluidized bed combustion furnace are mixed with solid fuel, and thereafter, gas is carried and is fed in a fluidized bed in the combustion furnace. CONSTITUTION:Solid fuel 3 is charged in a fuel hopper 5 through a fuel feed pipe 4, and is introduced through a takeout valve 6 to a fuel-particle mixer 7. To the mixer, particles, collected from combustion exhaust gas exhausted from a combustion furnace 1 and having temperature of about 100-400 deg.C, are introduced through a particle recirculating pipe 8, and are mixed with the solid fuel 3. The mixing causes vaporization of a part or all of a moisture content on the surface of the solid fuel 3 by means of a sensible heat possessed by the solid fuel. This method eliminates drying of the solid fuel as pretreatment. Since a moisture content on the surface of the solid fuel is vaporized in a mixer 7, choking is prevented from occurring in fuel feed systems 11-14.

16. 发明专利

JP2002221302A CIRCULATING FLUIDIZED BED BOILER WITH WEAR PREVENTING MECHANISM FOR EVAPORATING PIPE OF FURNACE 失效
公开(公告)号：JP2002221302A
公开(公告)日：2002-08-09
申请号：JP2001014498
申请日：2001-01-23
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAKAWA YOSHIHISA , YAMADA KAZUJI , KUROISHI TOSHIRO , NISHIO TOSHIAKI , MIYAMOTO MANABU
IPC分类号： F23C10/02 , F22B1/02 , F22B37/10
摘要： PROBLEM TO BE SOLVED: To provide a circulating fluidized bed boiler with a wear preventing mechanism for an evaporating pipe of a furnace having a simple constitution. SOLUTION: The wear of the evaporating pipes 2 of the furnace with fluidized material particles is suppressed by reducing the amount of the particles which deposit on the upper surface of a refractory material 3 and descend along the internal wall of the furnace by covering the gap between the upper parts of the evaporating pipes 2 from the upper surface of the refractory material 3 covering the internal lower part of the furnace.

17. 发明专利

JP2002005413A CIRCULATED FLUIDIZED BED COMBUSTION FURNACE AND OPERATING METHOD THEREOF 失效
公开(公告)号：JP2002005413A
公开(公告)日：2002-01-09
申请号：JP2000186255
申请日：2000-06-21
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAGASHIRA KENJI , MYOYO KAZUYUKI , TORII ISAO , MIYAMOTO MANABU
IPC分类号： F23G5/30 , F23C10/02 , F23C10/22 , F23G5/44 , F23G5/46 , F27B15/09 , F27D17/00
摘要： PROBLEM TO BE SOLVED: To provide a circulated fluidized bed combustion furnace capable of restricting and preventing the generation of dioxins or the like. SOLUTION: The circulated fluidized bed combustion furnace is constituted of a combustor 11, forming a high speed fluidized bed to burn high volatile fuel 30, a cyclone 12, separating discharged fluidized material or grains 21 from waste gas, a fluidized bed heat exchanger 15, re-circulating the separated grains through a grain circulating line 13 to separate high-temperature grains from low-temperature grains and supply the separated low-temperature grains through a low-temperature grain circulating line 24 for circulating the separated low-temperature grain thereby effecting the heat exchange of latent heat in the separated waste gas, and a dust removing means 27 for removing the dust of soot in the waste gas. In such a circulated fluidized bed combustion furnace, a waste gas circulating line 102 for re-circulating a part of waste gas 22, discharged out of the dust removing means 27, to the upstream side of the heat exchanging means 25 through a waste gas circulating fan 101, is provided.

18. 发明专利

JP2001340836A METHOD AND SYSTEM FOR REDUCING VOLUME OF INCINERATION ASH 失效
公开(公告)号：JP2001340836A
公开(公告)日：2001-12-11
申请号：JP2000161512
申请日：2000-05-31
申请人： MITSUBISHI HEAVY IND LTD , OFIC CO
发明人： NAKAMORI MASAHARU , MATSUBARA RYUICHI , HOSHI TAKESHI , MIYAMOTO MANABU , TANIMURA TAKETOSHI , AISAKA TAKAYUKI , SAKAMOTO TEPPEI
IPC分类号： G21F9/30 , B01J19/08 , B09B3/00
摘要： PROBLEM TO BE SOLVED: To provide a technology for reducing the volume of incinerating ash discharged from various incinerators such as a municipal waste incinerator, an industrial waste incinerator, and a sludge incinerator, pyrolysis furnaces, melting furnaces, or the like. SOLUTION: A system for reducing the volume of incineration ash is constituted of a crushing means 12 for crushing the incineration ash 11, a particle size adjusting means 13 for classifying the crushed incineration ash 11, a water plasma irradiation means 18 having a water plasma burner 17 which generates a plasma jet 14 by supplying the adjusted incineration ash 11 and forms a flame- spraying substance 16 in a material 15 to be flame-sprayed, and a gas treatment means 20 for treating a harmful gas 19 generated together with the plasma.

19. 发明专利

JP2001108222A METHOD FOR WASTE BURNING POWER GENERATION 失效
公开(公告)号：JP2001108222A
公开(公告)日：2001-04-20
申请号：JP28758499
申请日：1999-10-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： KOJIMA KATSUHISA , KATAYAMA HIROYUKI , SAITO KEISHIRO , BANDAI SHIGEMI , MIYAMOTO MANABU
IPC分类号： B09B3/00 , F23G5/027 , F23G5/14 , F23G5/46 , F23J15/00 , F23J15/02
摘要： PROBLEM TO BE SOLVED: To provide a method for waste burning power generation capable of efficiently generating power by burning a chlorine-containing waste. SOLUTION: The method for waste burning power generation comprises the steps of dry distilling a chlorine-containing waste in a dry distilling furnace, passing generated gas through a desalting unit to remove its chlorine content in the gas, separately burning a combustion gas obtained by burning the obtained clean gas and a combustion gas obtained by burning a residue retained in the dry distilling furnace by introducing them to superheaters of a boiler to generate power or dry distilling the waste in the distilling furnace, combining clean gas obtained by removing the chlorine content in the gas through a wet desalting unit and a washing residue obtained by washing the residue retained in the distilling furnace with waste water from the desalting unit, and introducing the combined gas to the superheaters of the boiler to generate power.

20. 发明专利

JP2000257807A FLUIDIZED LAYER HEAT EXCHANGER 失效
公开(公告)号：JP2000257807A
公开(公告)日：2000-09-22
申请号：JP5870999
申请日：1999-03-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： ARAKAWA YOSHIHISA , KUROISHI TOSHIRO , MIYAMOTO MANABU
IPC分类号： F23C10/02 , F22B1/02
摘要： PROBLEM TO BE SOLVED: To provide a fluidized layer heat exchanger reducing the corrosion of a relatively high-temperature heat exchanger such as a super-heater or the like in a circulating fluidized bed boiler. SOLUTION: In a fluidized layer heat exchanger 140, separating particles from two-phase stream containing combustion gas and the particles produced in the furnace 110 of a circulating fluidized bed boiler 110 and recovering heat from at least one part of the separated particles, then, supplying the particles into the furnace 100 again after recovering heat, an upstream side first chamber and a downstream side second chamber are provided in the fluidized layer heat exchanger 140 in reference to the moving direction in the fluidized layer heat exchanger 140 of the particles running from the fluidized layer heat exchanger 140 toward the furnace 110 while a first heat exchanger 144, through which relatively low temperature operating fluid flows, is arranged in the first chamber and a second heat exchanger 146, through which relatively high temperature operating fluid flows, is arranged in the second chamber.

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