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61. 发明专利

JPS63258622A DENITRATION METHOD 失效
公开(公告)号：JPS63258622A
公开(公告)日：1988-10-26
申请号：JP9385687
申请日：1987-04-16
申请人： BABCOCK HITACHI KK
发明人： NAGAMINE SHOGO , MORITA ISATO , YOSHITAKE TSUNEO , MUKAI MASATO
IPC分类号： B01D53/94
摘要： PURPOSE:To prevent poisoning of catalysts and enhance combustion efficiency by a method in which dust is collected after denitration of exhaust gas; heavy metal compounds of ash permitted to dissolve out from the recovered ash in an acid solution tank at pH 5 or less; and the deposit is dehydrated and recycled to the combustion equipment. CONSTITUTION:Exhaust gas generated in a boiler 1 is denitrated by a denitration device 2 after NH3 injection, and then, ash is collected by a dust collector 4. The ash passes through an extraction line 13, being conduction to an acid solution tank 7 adjusted to pH 5 or less for effusion of heavy metal compounds. Next, the mixture is introduced into a thickener 8 and only the solution portion of the ash is separated. Further, the solution portion is separated by a centrifuge 9, and the ash passes through an ash recycling line 18, thusbeing recycled to the boiler 1 recombustion.

62. 发明专利

JPS6221571B2 失效
公开(公告)号：JPS6221571B2
公开(公告)日：1987-05-13
申请号：JP1760678
申请日：1978-02-20
申请人： BABCOCK HITACHI KK
发明人： OGURA KATSUJI , MUKAI MASATO , MASUTOMI HIROSHI , MORI YOSHIMICHI
IPC分类号： B01D53/94 , B01J8/02 , F01N3/24

63. 发明专利

JPS6086305A BOILER DEVICE 失效
公开(公告)号：JPS6086305A
公开(公告)日：1985-05-15
申请号：JP19169683
申请日：1983-10-15
申请人： BABCOCK HITACHI KK
发明人： MUKAI MASATO , ISHITOKU HIDEAKI , HIRANO MASAYUKI
IPC分类号： F22B37/20 , F22B37/24

64. 发明专利

JPS5794330A REACTOR FOR HIGH DUST 失效
公开(公告)号：JPS5794330A
公开(公告)日：1982-06-11
申请号：JP17023280
申请日：1980-12-04
申请人： BABCOCK HITACHI KK
发明人： WATANABE SHIGEO , MUKAI MASATO
IPC分类号： B01D53/86 , B01J8/04
摘要： PURPOSE:To treat exhaust gas highly containing dust without clogging catalyst layers by providing dust collecting devices in the inlet side of each stage of multistage catalyst layer and installing them on the inner peripheral walls in the second stage and lower. CONSTITUTION:In treating gas highly containing dust such as exhaust gas of coal-burning boiler etc. by multistage catalyst layers 2A, 2B, 2C, dust collecting devices 5A, 5B, 5C made of wire netting, perforated plate etc. are installed in the upper part of catalyst layers 2A-C. In the uppermost stage 5A, it is installed over whole area of gas flow, and in the second stage and lower 5B, 5C, the devices are installed in shelflike form with a specified width from inner periphral wall of the reactor. By this way, dust falling down from the inner wall of the reactor and catalyst layers can be collected satisfactorily and clogging of catalyst layers 2A-C is prevented. Consequently, long, stable operation can be made possible.

65. 发明专利

JPS5457466A PLATE CATALYTIC APPARATUS 失效
公开(公告)号：JPS5457466A
公开(公告)日：1979-05-09
申请号：JP12350477
申请日：1977-10-17
申请人： BABCOCK HITACHI KK
发明人： MORI YOSHIMICHI , MUKAI MASATO , KONISHI KUNIHIKO , KAMIO HIROYUKI , ISHIKAWA TOMIHISA
IPC分类号： B01D53/86 , B01D53/34 , B01J19/24 , B01J35/02 , B01J35/04
摘要： PURPOSE:To provide a plate catalytic apparatus, in which the catalyst itself serves as a spacer, and which has increased rigidity and strength, by arranging side by side and in parallel with each other plate catalyst units having straight parts and bent parts alternately in their cross sections. CONSTITUTION:A substrate 6 with many connecting holes 7 made in it, and with projections 8 made alternately on both right and left sides in a sectional view is coated with catalyst layers 9, so that the catalyst layer 9 are joined each other through the connecting holes 7 and fixed strongly on the substrate 6. A plate catalytic units 41 with bent parts of S-shape, and a plate catalytic unit 42 with bent parts of Z-shape are formed from the substrate 6. Arrangement of the plate catalytic units 41, 42 side by side alternately formes a gas-flow paths 4 of the same sectional shape with length equal to 1/2 the pitch of the bent parts and with breadth equal to the height of the projections. Hereby, the catalyst itself serves as a spacer, reducing the weight of the apparatus, increasing rigidity and strength of the catalyst plate.

66. 发明专利

JPS536278A CATALYTIC REACTOR 失效
公开(公告)号：JPS536278A
公开(公告)日：1978-01-20
申请号：JP7988176
申请日：1976-07-07
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： MURAKAMI TADATAKA , ARASHI NORIO , AKATSU SHIGEYUKI , TAKI TOMOYUKI , MUKAI MASATO
IPC分类号： B01D53/94 , B01J8/00 , B01J8/02 , F23G7/07
摘要： PURPOSE:To prevent channeling of gas passing through catalyst layer by reversing the gas flow in a catalytic reactor in the time after the gas has passed through the inlet until it flows out of the outlet.

67. 发明专利

JPS52126673A CATALYZER PARTICLE CARRYING APPARATUS IN CATALYTIC REACTION EQUIPMENT 失效
公开(公告)号：JPS52126673A
公开(公告)日：1977-10-24
申请号：JP4357676
申请日：1976-04-19
申请人： HITACHI LTD , BABCOCK HITACHI KK
发明人： ARASHI NORIO , MURAKAMI TADATAKA , AKATSU SHIGEYUKI , MUKAI MASATO
IPC分类号： B01D53/86 , B01D53/94 , B01J8/12 , F23G7/07
摘要： PURPOSE:To make possible to carry uniformly the catalyzer particles over the whole area of the filling layer even from a small drain hole by providing the baffle, with forming the free surface of the catalyzer thereunder, at the hopper part of the bottom part of the bottom part of catalyzer filling layer in contact catalytic reaction apparatus of moving bed type.

68. 发明专利

JPS5264070A PROCESS FOR TREATING COMBUSTION EXHAUST GASES 失效
公开(公告)号：JPS5264070A
公开(公告)日：1977-05-27
申请号：JP13976575
申请日：1975-11-22
申请人： BABCOCK HITACHI KK
发明人： NAKAO TADANOBU , ISHIKAWA TOMIHISA , MUKAI MASATO
IPC分类号： B01D45/18 , B01D47/00 , B01D53/34 , B01D53/77
摘要： PURPOSE:To prevent the generation of white smoke by recycling a liquid for washing exhaust gases through a cooling tower.

69. 发明专利

JP2008155078A Catalyst structure and exhaust gas cleaner using the same 有权
标题翻译：催化剂结构和使用其的排气清洁剂
公开(公告)号：JP2008155078A
公开(公告)日：2008-07-10
申请号：JP2006343605
申请日：2006-12-20
申请人： Babcock Hitachi Kk , バブコック日立株式会社
发明人： YAMADA AKIHIRO , NAGAI YOSHINORI , MUKAI MASATO
IPC分类号： B01J35/02 , B01D53/86 , F01N3/28
摘要： PROBLEM TO BE SOLVED: To provide a catalyst structure which prevents a drift in the passage formed by being inserted by catalyst plates and simplifies the manufacturing step of the catalyst plate. SOLUTION: The catalyst structure is characterized in that a plurality of the catalyst plates 1 to which the catalyst to purify the exhaust gas is carried are arranged so that the plate face becomes parallel to the direction of the gas stream and so that they are piled up in a multistage by rectangularly crossing the up-and-down plate faces to the up and down direction, an incision 1A is installed to the end portion of the up and down piled-up portion of the catalyst plates with an equal pitch, the up-and-down catalyst plates are piled up by combining each incision and a support plate 3 to support the catalyst plate is installed to the uppermost stage of the catalyst plate and a supporting member 4 is installed to the lowermost stage. The support plate and the support member are arranged to extend to the rectangular direction to the plate face of the catalyst plate. The incisions 3A and 4A with the equal pitch are formed on the contact portion with each other. The catalyst plates are supported by combining the incisions with each other. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种催化剂结构，其防止由催化剂板插入形成的通道中的漂移，并且简化了催化剂板的制造步骤。解决方案：催化剂结构的特征在于，载有净化废气的催化剂的多个催化剂板1被布置成使得板表面平行于气流的方向，并且使得它们通过将上下板面向上和向下的方向成矩形地堆积在多段中，切口1A以等间距安装到催化剂板的上下堆叠部分的端部通过组合每个切口和支撑板3来堆叠上下催化剂板，以将催化剂板安装到催化剂板的最上段，并将支撑构件4安装到最下层。支撑板和支撑构件被布置成朝向矩形方向延伸到催化剂板的板面。具有相等间距的切口3A和4A彼此形成在接触部分上。通过将切口彼此组合来支撑催化剂板。版权所有（C）2008，JPO＆INPIT

70. 发明专利

JPH09173786A AMMONIA INJECTION DEVICE 失效
公开(公告)号：JPH09173786A
公开(公告)日：1997-07-08
申请号：JP33761595
申请日：1995-12-26
申请人： BABCOCK HITACHI KK
发明人： HORIUCHI TERUHIRO , MORI YOSHIMICHI , WATANABE KO , MUKAI MASATO
IPC分类号： B01D53/56 , B01D53/86 , B01D53/94
摘要： PROBLEM TO BE SOLVED: To solve the problem of unbalanced ammonia injection due to the reduction in injection amount of ammonia when the denitrification load lowers by mixing steam into the aqueous ammonia vapor to compensate the decrement of the aqueous ammonia vapor flow rate and apply the same pressure drop across one of nozzles as that before the decrease in aqueous ammonia vapor flow rate is caused, to each of the nozzles when the injection amount of aqueous ammonia vapor is reduced. SOLUTION: In this device, an aqueous ammonia vapor pipeline 10 is provided with a steam injection means downstream from a flow control valve 9 and steam is introduced to a steam pressure reducing valve 15 through a steam pipeline 14 to reduce the stream pressure to a value higher than the total value ((1)+(2)+(3)) of (1) the pressure drop across one of nozzles 13 at the time of allowing the aqueous ammonia vapor to flow at an intended flow rate, namely, at a flow rate before the reduction in injection amount of the aqueous ammonia vapor is caused, (2) the pressure drop across the aqueous ammonia vapor pipeline 10 and one of nozzle headers 11 and (3) the static pressure of a duct 2. When the amount of Nox produced reduced because of a change in denitrification load and accordingly, the injection amount of the aqueous ammonia vapor is reduced, steam is mixed into the aqueous ammonia vapor to compensate the decrement of the aqueous ammonia vapor flow rate and to maintain the injection velocity of the ammonia vapor at an intended nozzles 13 and further, to uniformly inject the aqueous ammonia vapor into the each of the nozzles 13 and further, to uniformly inject the aqueous ammonia vapor into the duct 2.

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