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101. 发明专利

JPH07332614A METHOD FOR FLUIDIZED BED GASIFICATION AND MELTING COMBUSTION AS WELL AS ITS APPARATUS 失效
公开(公告)号：JPH07332614A
公开(公告)日：1995-12-22
申请号：JP2200095
申请日：1995-02-09
申请人： EBARA CORP
发明人： HIRAYAMA MITSUO , OSHITA TAKAHIRO , TAGOME CHIKAYUKI , NAGATOU SHIYUUICHI , HIROSE TETSUHISA , MIYOSHI YOSHIHISA , TOYODA SEIICHIRO , HOSODA SHUGO , FUJINAMI SHOSAKU , TAKANO KAZUO
IPC分类号： C10J3/46 , C10J3/48 , C10J3/50 , C10J3/52 , C10J3/54 , C10J3/56 , C10J3/64 , C10J3/66 , C10J3/86 , F23C10/00 , F23C10/02 , F23C10/12 , F23G5/00 , F23G5/027 , F23G5/16 , F23G5/30 , F23G5/32 , F23G5/46 , F23J1/00 , F23J15/00 , F23L7/00 , F23C11/02
摘要： PURPOSE:To change combustibles such as waste or coals and the like into gas to generate production gas containing a large amount of combustible in which ashes can be melted with a self-heat quantity and then to perform a melting combustion thereof. CONSTITUTION:A horizontal cross section of a fluidized bed furnace 2 is formed into a circular shape. A moving layer 9 where flowing medium is sedimented and dispersed is formed at a central part within the furnace, a fluidized bed 10 where fluidizing medium ascends is formed at a circumference within the furnace. The fluidizing medium is deflected from an upper part of the fluidized bed 10 toward an upper part of the moving layer, and then the medium is circulated through both layers. Combustibles 11 are loaded into the upper part of the moving layer and gasified into combustible gas while circulating together with the fluidized medium. An amount of air supplied to the fluidized bed furnace 2 is set to be 30% or less of a theoretical amount of air, a temperature of the fluidized bed is set to be 450 to 650 deg.C and the production gas contains a large amount of combustibles. Combustible gas generated at the fluidized bed furnace 2 and fine particles are supplied to the melting combustion furnace, combusted at high temperature and then the ashes are melted.

102. 发明专利

JPH0788329A TREATMENT OF WASTE GAS CONTAINING ORGANOHALOGEN COMPOUND 失效
公开(公告)号：JPH0788329A
公开(公告)日：1995-04-04
申请号：JP25633393
申请日：1993-09-21
申请人： EBARA CORP
发明人： OSHITA TAKAHIRO , ISHIKAWA RYUICHI , HIGO TSUTOMU , KANEKO MITSUYOSHI
IPC分类号： F23G7/06 , B01D53/86 , F23G7/07
摘要： PURPOSE:To decompose and remove the poisonous org. halogen compds. such as dioxine in a waste gas generated from the incineration of various wastes while suppressing the resynthesis of the compds. CONSTITUTION:A waste gas contg. org. halogen compds. discharged from combustion equipment 1 is passed through a catalyst bed to decompose and remove the compds. The catalyst bed is set as the heat accumulator of a regenerative heat exchanger 3. An NOx removing catalyst is preferably used as the catalyst of the bed, air is used as the cooling medium of the heat exchanger, and the heated air is preferably used as the combustion air of the equipment 1.

103. 发明专利

JPH06317306A PRESSURE INTERNAL CIRCULATION TYPE FLUIDIZED BED BOILER 失效
公开(公告)号：JPH06317306A
公开(公告)日：1994-11-15
申请号：JP5820894
申请日：1994-03-03
申请人： EBARA CORP
发明人： NAGATOU SHIYUUICHI , HORIO MASAYUKI , OSHITA TAKAHIRO , MIYOSHI YOSHIHISA , TOYODA SEIICHIRO , SHIMOKURA AKIRA , SHINANO TOMOYUKI , HOSODA SHUGO
IPC分类号： F01K23/10 , F22B1/02 , F23C10/02 , F23C10/16 , F23C11/02
摘要： PURPOSE:To achieve a load control without varying the height of a fluidized layer, and higher denitration efficiency by preventing the generation of agglomeration ashes, and attain a higher utilization rate of limestone by minimizing the generation of carbon monoxide while preventing the lowering of the efficiency of a gas turbine. CONSTITUTION:A combustor 2 is arranged in a pressure container and an air disperser 21 for air for fluidizing is provided on the bottom part of the combustor 2. An inclined partition wall 8 is provided to intercept an upward flow of the air for fluidizing which is jetted from a part involved above an air jetting part with a large mass velocity while reflecting and turning the air for fluidizing above the air jetting part with a smaller mass velocity to form a fluidized bed main combustion chamber 9. Moreover, a heat recovery chamber 10 is formed with the inclined partition wall 8 as divided from the main combustion chamber 9 and a heat transfer surface is arranged in the heat recovery chamber 10 through a heat receiving fluid while a heat recovery chamber diffuser 24 is provided on the bottom of the heat recovery chamber 10. The upper part of heat recovery chamber 10 is integrated with the upper part of the main combustion chamber 9 to form a free board 31.

104. 发明专利

JPH05240416A 失效
公开(公告)号：JPH05240416A
公开(公告)日：1993-09-17
申请号：JP7314692
申请日：1992-02-25
申请人： EBARA CORP
发明人： KAMISADA MASAJI , NAGATOU SHIYUUICHI , OSHITA TAKAHIRO , SATO KEIICHI
IPC分类号： F23G5/14 , F23G5/30
摘要： PURPOSE:To minimize the scattering of unburnt carbon and a fluid medium and control an unburnt gas to be generated to a minimum level in an incinerator. CONSTITUTION:In an incinerator 10 wherein a combustion gas generated from a fire grate part or a fluidized sand bed part 12 is introduced into an upper combustion chamber and mixed with secondary air to complete combustion, the combustion chamber comprises: a recessed portion 14 provided on the way of a gas flow passage, which is recessed laterally with respect to a gas stream and expanded again at a fixed distance; a first barrier 16 formed into a hat shape and provided at the outlet of the recessed portion; a lower combustion chamber 13 provided underneath the barrier and an upper combustion chamber 15 provided above the barrier; and a gas passage 17 provided on the outer side of the barrier. Further, a plurality of secondary air blowing ports 22b for injecting secondary air in a direction opposed to, or cross to, the combustion gas stream from the outlet of the barrier are provided in the upper combustion chamber and, according to this combustion, the stream of the combustion gas is turned in the downstream direction by the secondary air in the upper combustion chamber 15. Furthermore, a second comb-like barrier 23 is provided so that the secondary air and an unmixed combustion gas impact against the second barrier and are mixed with each other in the upper combustion chamber.

105. 发明专利

JPH02290402A HEAT RECOVERY CONTROL METHOD FOR FLUIDIZED BED BOILER 失效
公开(公告)号：JPH02290402A
公开(公告)日：1990-11-30
申请号：JP11132889
申请日：1989-04-28
申请人： EBARA CORP
发明人： INUMARU NAOKI , OSHITA TAKAHIRO , KOSUGI SHIGERU , NAGATOU SHIYUUICHI , MIYOSHI YOSHIHISA
IPC分类号： F23C10/28 , F22B1/02 , F23G5/50
摘要： PURPOSE:To finely control an amount of recovered heat throughout a wide range in a way that a diffusion airflow diffused from a plurality of diffusing devices is controlled classified by the diffusing device by a method wherein a plurality of fluidized bed combustion furnaces are provided, and a plurality of the diffusing devices are mounted to a plurality of heat recovery parts mounted in a fluidized bed and the fluid medium layer of the fluidized bed combustion furnace. CONSTITUTION:A boiler comprises a combination coal and waste combustion fluidized bed combustion bed A, a mono-coal combustion fluidized bed combustion furnace B, and a boiler part C. Heat recovery chambers 114 and 115 are provided in the fluid medium layers of the combination coal and waste combustion fluidized bed combustion furnace A and the mono-coal combustion fluidized bed combustion furnace B. Main diffusing devices 119, 120, 119a, and 120a are arranged to the bottom part in the fluid medium layer of the heat recovery chambers 114 and 115, and auxiliary diffusing devices 121 and 122 are arranged on the side positioned opposite to the main diffusing devices 119 and 120. The large volumes of the heat recovery chambers 114 and 115 are controlled by means of a diffusion airflow independently diffused from the main diffusing devices 119, 120, 119a, and 120a and the auxiliary diffusing devices 121 and 122, resulting in the possibility to finely control heat recovery.

106. 发明专利

JPS63166757A TI02 SINTERED BODY AND MANUFACTURE 失效
公开(公告)号：JPS63166757A
公开(公告)日：1988-07-09
申请号：JP30927586
申请日：1986-12-27
申请人： IBIDEN CO LTD , EBARA CORP
发明人： TSUKADA KIYOTAKA , OSHITA TAKAHIRO , ISHIKAWA RYUICHI , SATOIE CHIKAO
IPC分类号： C04B35/46

107. 发明专利

JPS63131916A FLUIDIZED BED TYPE HEAT REACTION EQUIPMENT 失效
公开(公告)号：JPS63131916A
公开(公告)日：1988-06-03
申请号：JP27526686
申请日：1986-11-20
申请人： EBARA CORP
发明人： INUMARU NAOKI , HIGO TSUTOMU , OSHITA TAKAHIRO , KOSUGI SHIGERU
IPC分类号： F23G5/30
摘要： PURPOSE:To improve the efficiency of reaction and combustion with the effective dispersion of granular solids along a swirl in a fluidized bed by installing the opening pipe ends of an air flow transfer pipe for the granular solids at the bottom of the fluidized bed inside near the boundaries between a part where the flow rate of blown air is relatively small and a part where large. CONSTITUTION:Granular solids supplied into an air flow transfer pipe 37 are mixed with air and then supplied into the inside of a fluidized bed from supply nozzles 39 through the pipe 37. The nozzles 39 are placed near respective houndaries between the air chamber 15, 16 and 16, 17, and the granular solids supplied from there are dispersed into the inside of the swirl fluidized bed along the stream of flowing mediums in an arrow direction. It is sufficient to install the nozzles 39 at two places. As the supply locations of the granular solids are set at the boundary range between a descent moving bed and an ascent moving bed where the mediums are transferred from the lower part of the descent moving bed to the lower part of the ascent moving bed, the granular solids supplied are involved in a swirl to be dispersed wholly into the fluidized bed.

108. 发明专利

JPS63107711A FILTER FOR REMOVING CLADS IN BOILER CONDENSATE 失效
公开(公告)号：JPS63107711A
公开(公告)日：1988-05-12
申请号：JP25183486
申请日：1986-10-24
申请人： EBARA CORP , IBIDEN CO LTD
发明人： SATOIE CHIKAO , OSHITA TAKAHIRO , ISHIKAWA RYUICHI , TSUKADA KIYOTAKA
IPC分类号： G21F9/06 , B01D29/33 , B01D29/50 , F22D11/00 , G21F9/00
摘要： PURPOSE:To remove clads under a high temperature by using a filter element constituted with a ceramic porous material and removing clads contained in boiler condensate. CONSTITUTION:A filter element 1 consisted, for instance, of a parent material 7 on the condensate inflow side and a film 8 on the outflow side, both of the parent material 7 and the film 8 constituted with a ceramic porous material of heat resistance and corrosion resistance, is formed up, for instance, into a long, cylindrical body with an opening 2 at one end. Boiler condensate filtered is guided from a condensate inlet 9 into a filter, flowed from the outer periphery face of an element 1 into the inside of the element 1 flowed out of the opening 2 in the form of purified liquid and discharged out of a condensate outlet 10. As a result, clads contained in the boiler condensate can be removed at high temperature.

109. 发明专利

JPS6387520A UNBURNT ASH RECOVERING DEVICE 失效
公开(公告)号：JPS6387520A
公开(公告)日：1988-04-18
申请号：JP22980386
申请日：1986-09-30
申请人： EBARA CORP
发明人： HIGO TSUTOMU , OSHITA TAKAHIRO , KOSUGI SHIGERU , INUMARU NAOKI
IPC分类号： F23J3/06 , F23C10/24
摘要： PURPOSE:To improve the combustion rate due to return ashes by providing in parallel a plurality of separation mechanisms with dampers in a combustion waste gas flowpath and adjusting the number of opening and closing of separators to make constant the draft pressure loss of the combustion waste gas in the separation mechanisms. CONSTITUTION:A plurality of separation mechanisms consisting of combinations of separators 7 and dampers 7a are provided in parallel to each other in the combustion waste gas flowpaths of a fluidized bed boiler 1. By this constitution, the waste gas passes through separators 7 and dampers 7a and is sent to a dust collector 8 and dusts and dirts are arrested. Upon this occasion, the control of opening and closing of respective damper 7a is carried out so that by the difference in pressure between the front part and the rear part of the separation mechanism detected by a differential pressure meter 30, the draft pressure loss becomes constant. Thus, it is possible to maintain the ability meeting the waste gas flow rate and to operate the device in a high efficiency zone.

110. 发明专利

JPS6372319A FILTER FOR USE AT HIGH TEMPERATURE 失效
公开(公告)号：JPS6372319A
公开(公告)日：1988-04-02
申请号：JP21400186
申请日：1986-09-12
申请人： EBARA CORP , IBIDEN CO LTD
发明人： OSHITA TAKAHIRO , ISHIKAWA RYUICHI , SATOIE CHIKAO , TSUKADA KIYOTAKA
IPC分类号： B01D39/20 , B01D46/24
摘要： PURPOSE:To provide a filter having resistance to high temperature, by composing a ceramic porous filter of a porous sintered material comprising at least 85wt% of TiO2. CONSTITUTION:A filter 1 for high temperature is formed in the shape of a cylindrical body with an opening 2 at one end, and gas containing dust is introduced from the outer peripheral face of the filter 1 and exhausted out of the opening 2. The filter 1 is consisted of a film 6 with pores of different diameters and a main body 7 on the inner side, and both the film 6 and the main body 7 are constituted with a porous body made of a sintered material containing at least 85wt% or more of TiO2. The pore diameters of the main body 7 are larger than those of the film 6, and the layer thickness thereof is formed larger from the viewpoint of strength. The filter comprising TiO2 as a main component is not blocked with molten alkali metal salt or the like in high temperature exhaust gas, and can be operated continuously for a long period of time.

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