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1. 发明专利

JP2000300977A LATERAL TYPE AGITATING MIXER 失效
公开(公告)号：JP2000300977A
公开(公告)日：2000-10-31
申请号：JP11291099
申请日：1999-04-20
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： KONDO EIJI , HAMAKAWA NORIHIRO , HIURA FUMIAKI
IPC分类号： B09B3/00 , B01F7/04 , B01F15/02
摘要： PROBLEM TO BE SOLVED: To obtain a lateral type agitating mixer with a discharge valve locking mechanism in which a discharge valve is not opened even when the thrust force of a discharge valve opening and closing device is small. SOLUTION: In the lateral agitating mixer, in which a throw-in hole is formed on a ceiling on one end of a casing 1, a discharge outlet is formed on a bottom face on the other end, a rotating shaft with an agitating paddle is disposed rotatably in the casing 1, and a discharge valve 4 rotated by a discharge valve opening and closing device 2 and opening and closing the discharge outlet 12 from the lower face of the discharge outlet 12, a lock member 9 and one end of an arm 11 constituting a lever with a shaft 10 as a support are set rotatably on a piston rod 8 of a lock member rotating device 7, and the bottom face of the discharge valve 4 is pressed by the rotation of the lock member 9 to the side of the discharge valve 4 to lock the discharge valve 4 and then separated from the discharge valve 4 to release the locking of the discharge valve 4.

2. 发明专利

JPH10220724A DETECTION METHOD OF QUANTITY OF DUMPED GARBAGE 失效
公开(公告)号：JPH10220724A
公开(公告)日：1998-08-21
申请号：JP3325897
申请日：1997-01-30
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： IWAMOTO SHINJI , HIDAKA RYOTA , HIURA FUMIAKI , KAMIYA JUNICHI , MATSUMOTO SHUICHI
IPC分类号： F23G5/44 , F27B15/08 , F27B15/20
摘要： PROBLEM TO BE SOLVED: To enable accurate detection of the quantity of dumped garbage even when the garbage diffusively drops side ways within a vertical part of a dirt supply chute or long-sized dirt hangs from a dirt supplying device by arranging a plurality of amount of dumped garbage sensors as spaced at a specified interval parallel with the direction of dumping the garbage at the dirt supply chute. SOLUTION: Amount of dumped garbage sensors 14, 15 and 16 are all of a photoelectric tube type and are installed in a pair on the light emitting side and on the photodetecting side respectively. The sensors detect light intercepted time while dropping garbage G passes between the two sensors and integrate the detection time to measure a correct amount (volume) of the garbage G passing. The amount of dumped garbage sensors 14, 15 and 16 set the direction of detection parallel with the direction of dumping the garbage and three sets 14, 15 and 16 thereof are installed horizontal to the direction of dumping the garbage G so as to obtain a proper resolving power with respect to the width of the dirt supply chute 12. This can prevent missed and duplicated detection of the dropping garbage G thereby achieving an accurate proportion between the amount of the actually dropping garbage G and an amount of dumped garbage signal.

3. 发明专利

JPH05340675A 失效
公开(公告)号：JPH05340675A
公开(公告)日：1993-12-21
申请号：JP17603092
申请日：1992-06-11
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： TAWARA YOICHI , HARAJIRI HACHIRO , KAMIYA JUNICHI , FURUTA MASAKAZU , HIURA FUMIAKI , TANAKA YUKIMASA
IPC分类号： F27B15/10 , F27D7/02
摘要： PURPOSE:To enable burning gaseous fuel in a manner of multifuel combustion in safety, without raising environmental problems, and highly efficiently in a circulating, fluidized bed type combustion chamber with a two-stage supply of air by a method wherein gaseous fuel is fed through a pipe provided inside a secondary air-feeding pipe and a specific relationship is maintained between the amount of secondary air fed through a lower-level inlet and the flow-rate of gaseous fuel. CONSTITUTION:Granular coal 1 and limestone 3 are fed into a fluidized bed combustion chamber 6 by a feed pipe 5 and primary air blown into the fluidized bed combustion chamber 6 by a primary air-feeding pipe 8, which is connected to the bottom of the fluidized bed combustion chamber 6, keeps the granular coal 1, limestone 3, etc., in a fluidized state. A secondary air upper-level feed pipe 9 and a secondary air lower-level feed pipe 24 are connected to the fluidized bed combustion chamber 6 and a gaseous fuel feed pipe 25 is connected to the fluidized bed combustion chamber 6 in a concentric arrangement inside the secondary air lower-level feed pipe 24. Under this piping arrangement the feeding of air and gaseous fuel is made to maintain a relationship between Q1 representing the amount of secondary air at the lower level, i.e., the stream through the secondary air lowerlevel feed pipe 24, and Q2 representing the flow-rate of the gaseous fuel, i.e., the stream through the gaseous fuel feed pipe 25, expressed as Q1/Q2>=0.3A0 where A0 represents a threoretical amount of air for combustion against gaseous fuel.

4. 发明专利

JPH0355408A METHOD FOR BURNING CHARCOAL MATERIAL BY USING CIRCULATING FLUIDIZED BED 失效
公开(公告)号：JPH0355408A
公开(公告)日：1991-03-11
申请号：JP19010189
申请日：1989-07-22
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： TAWARA YOICHI , KAMIYA JUNICHI , HIURA FUMIAKI , TANAKA YUKIMASA , FUJITA GENJI
IPC分类号： F23C10/00 , F23C10/02
摘要： PURPOSE:To produce quantities of heat through improvement of a ratio of a charcoal material consumed for combustion by a method wherein when combustion gas is discharged to the outside of a system, fly ash, having a specified grain size or more, of fly ash separated away from combustion gas by means of a dust collector is graded and blown in a fluidized bed combustion chamber. CONSTITUTION:Combustion gas is fed to a convection boiler 9 and the heat of which is recovered. After dust is removed from the combustion gas by means of first and second dust collectors 10 and 11, the combustion gas is discharged to the outside of a system by means of a blower 12. In this case, a solid material with a grain size of 2mum or more is separated away from a solid material by means of the first dust collector 10 and fine dust is separated by the second dust collector 11. Fly ash with a grain size of 2mum separated by means of the first dust collector 10 is returned through a coarse grain return pipe 15 to a fluidized bed combustion chamber 2. The coarse grain return pipe 15 is opened in a level higher than that of a secondary air introduction pipe 5 and in the fluidized bed combustion chamber 2. Since this position is a part where the internal pressure of the fluidized bed combustion chamber 2 is comparatively low and oxygen concentration in the fluidized bed combustion chamber 2 is increased by means air blown through the secondary air introduction pipe 5, excellent combustion at an unburnt part located to the central part of fly ash is effected.

5. 发明专利

JPH0355407A HEAT RECOVERY METHOD FOR CIRCULATING FLUIDIZED BED 失效
公开(公告)号：JPH0355407A
公开(公告)日：1991-03-11
申请号：JP19010089
申请日：1989-07-22
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： TAWARA YOICHI , KAMIYA JUNICHI , HIURA FUMIAKI , TANAKA YUKIMASA , FUJITA GENJI
IPC分类号： F23C10/00 , F23C10/02
摘要： PURPOSE:To enable high-efficient recovery of heat possessed by a solid material without complication of equipment and operation by a method wherein heat is taken out to external part from the thickened part of the solid material formed in the middle of an external circulating route. CONSTITUTION:Combustion gas produced by combustion is raised within a fluidized bed combustion chamber 2 together with dust. Combustion gas away from which dust is separated by means of a cyclone 5 is fed through a discharge pipe 6 to a convection boiler 7. A heat transfer pipe 8 is arranged in the convection boiler 7, and heat possessed by combustion gas flowing through the discharge pipe 6 is recovered by fluid flowing through a heat transfer pipe 8. Meanwhile, a solid material, e.g. an unburnt component, an ash component, separated away from the combustion gas by means of the cyclone 5 is lowered to a return pipe 11. The solid material gathers at a bent part being the lower part of the return pipe to form a particle thickened part 12. A heat transter pipe 14 is arranged to the particle thickened part 12, and since fluid 15, e.g. water, flows, heat possessed by the solid material is transferred to the fluid 15 through the pipe wall of the heat transfer pipe 14 with high efficiency. This constitution simplifies recovery of the heat of the solid material, e.g. an unburnt component, an ash component.

6. 发明专利

JPH06304467A FLUIDIZED BED REACTOR AND METHOD FOR CONTROLLING THE SAME 失效
公开(公告)号：JPH06304467A
公开(公告)日：1994-11-01
申请号：JP9813593
申请日：1993-04-23
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： KAMIYA JUNICHI , TAWARA YOICHI , HARAJIRI HACHIRO , FURUTA MASAKAZU , HIURA FUMIAKI , EGAWA YOSHIO
IPC分类号： B01J8/24 , F23C10/02 , F23C10/28 , F23C11/02
摘要： PURPOSE:To provide a fluidized bed reactor and a method for controlling it wherein even if reaction load becomes high, while a good and uniform reaction is guaranteed, the inner wall of a reaction room is prevented from wearing caused by particles without increasing unnecessarily density of suspension of circulating particles in the reaction room and reliability on installation is high. CONSTITUTION:This fluidized bed reactor consists of a fluidized bed reaction room 3, a solid content separator 7 and a recirculation pipe path 11 and a storing box 14 with a smaller cross-sectional area than the bottom area of the reaction room and storing temporarily circulation particles is provided on the bottom part of the fluidized bed reaction room 3 and a primary gas feeding conduit 4 for blowing a reaction gas from the bottom part of the storing box 14 is provided and a secondary gas feeding conduit 15 for blowing the reaction gas is provided above the storing box and on the wall face of the fluidized bed reaction room 3.

7. 发明专利

JPH06221514A PRESSURE REGULATING MECHANISM IN DISCHARGED PARTICLE COOLING VESSEL FOR CIRCULATING FLUIDIZED BED DEVICE 失效
公开(公告)号：JPH06221514A
公开(公告)日：1994-08-09
申请号：JP933693
申请日：1993-01-22
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： FURUTA MASAKAZU , HIURA FUMIAKI , EGASHIRA TATSUHIKO , YAMAMOTO TETSUAKI , TAKEI YOSHIO , FUJITA GENJI
IPC分类号： F23C10/18 , F23C10/02 , F23C11/02
摘要： PURPOSE:To permit safe operation of whole of the title device by preventing spouting of particles upon discharging the particles from the bottom of a circulating fluidized bed device into a coling vessel. CONSTITUTION:A pressure regulating mechanism is provided in the discharged particles cooling vessel of a circulating fluidized bed device, constituted of a fluidized bed heat exchanger communicated with the guide-out passage of discharged particles from a fluidized bed forming section. A pressure regulating head is formed of a particles discharging pipe 74, of the discharged particles cooling vessel connected with a seal pipe 75 filled with the particles forming a fluidized bed and an opening degree regulating valve 76, regulating the opening degree of discharging valve positioned at the rear side of the discharging tube 74. According to this method, a pressure in the circulating fluidized bed and a pressure in the discarged particles cooling vessel can be equalized and the particles in the circulating fluidized bed can be discharged smoothly.

8. 发明专利

JPH0626612A METHOD FOR BURNING LIQUID FUEL IN CIRCULATION TYPE FLUIDIZED BED 失效
公开(公告)号：JPH0626612A
公开(公告)日：1994-02-04
申请号：JP18137192
申请日：1992-07-08
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： HARAJIRI HACHIRO , TAWARA YOICHI , KAMIYA JUNICHI , FURUTA MASAKAZU , HIURA FUMIAKI , FUJITA GENJI
IPC分类号： F23C10/22 , F23C10/02 , F23C11/02
摘要： PURPOSE:To cause combustion to be stable and enable combustion heat to be efficiently recovered from combustion gas by a method wherein a liquid fuel supplying angle is specified at a lower level than that of a feeding port of secondary lower stage air into a fluidized bed combustion chamber. CONSTITUTION:Liquid fuel is supplied into a liquid fuel supplying pipe 35 mounted at a lower level of a secondary lower stage air feeding pipe 24 from a fuel injection gun 36 at the same central axis. At this time, a level ratio between the supplying pipe 35 and the secondary lower stage air feeding pipe 24 is from 0.3 to 0.8. Liquid fuel is supplied from the liquid fuel injection gun 36 having an angle formed between an axis of the liquid fuel injection gun 36 and a horizontal line within a vertical line including the axis of 5 to 20 deg. and then the liquid fuel is ignited. As a result, a maximum temperature within the combustion chamber is 850 deg.C, a concentration of monoxide carbon is 180ppm and a concentration of SO2 is 90ppm, resulting in that a superior combustion state can be attained.

9. 发明专利

JPH06159601A ARRANGEMENT OF HEAT TRANSFER FACE IN COMBUSTION CHAMBER OF CIRCULATING FLUIDIZED BED APPARATUS 失效
公开(公告)号：JPH06159601A
公开(公告)日：1994-06-07
申请号：JP31041292
申请日：1992-11-19
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： FURUTA MASAKAZU , HIURA FUMIAKI , TAWARA YOICHI , KAMIYA JUNICHI , TANAKA YUKIMASA , FUJITA GENJI
IPC分类号： F22B1/02
摘要： PURPOSE:To provide heat transfer plates having an excellent heat transfer capacity which do not obstruct the circulation of fuel powder in a combustion chamber of a circulating fluidized bed apparatus. CONSTITUTION:A heat transfer plates 8 composed of a plurality of horizontally disposed water-wall tubes are arranged parallelly with a wall face in the whole area of a horizontal section of a high temperature zone of a combustion chamber 1. Since the heat exchange plates 8 are disposed in the almost whole section of a highest temperature zone, the heat transfer area per unit volume of the interior space of the combustion chamber 1 is maximized so that both a maximum thermal efficiency and a compact structure can be realized. Wear due to the collision with circulating fluidized matter is reduced by arranging the plurality of the heat transfer plates 8 such that bottom ends thereof are located above a dense bed zone, such that top ends thereof are disposed below a connecting space 13 between a cyclone 2 and the combustion chamber 1 and such that a space is provided with regard to the wall face 9.

10. 发明专利

JP2004076998A Treatment method of dehydration sludge and ash, and device for the same 有权
公开(公告)号：JP2004076998A
公开(公告)日：2004-03-11
申请号：JP2002236179
申请日：2002-08-14
申请人： Nippon Steel Corp , 新日本製鐵株式会社
发明人： ONO HITOSHI , HIURA FUMIAKI
IPC分类号： F23G5/00 , B09B3/00 , C02F11/10 , F23G5/04 , F23G7/00
摘要： PROBLEM TO BE SOLVED: To provide a treatment method of dehydration sludge and ash, and a device for the same for improving a slag ratio of ash by reducing the rescattering of the ash in a furnace, reducing an ash discharging amount in facilities, and impairing the adherability of the sludge to reduce the labor hour in maintenance. SOLUTION: In the treatment of the dehydration sludge and ash by charging the dehydration sludge and the ash discharged from a waste gas processing system of the waste fusing processing equipment, into a waste fusing furnace to fuse them, the dehydration sludge cut out from a sludge storage vessel 10 and the ash cut out from an ash storage vessel 12 are kneaded by a kneader 14, and then the mixture of the kneaded dehydration sludge and ash is supplied to the waste fusing furnace. COPYRIGHT: (C)2004,JPO

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