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1. 发明专利

JPH10165752A EXHAUST GAS TREATMENT PROCESS FOR WASTE DISPOSAL FACILITY 失效
公开(公告)号：JPH10165752A
公开(公告)日：1998-06-23
申请号：JP35344096
申请日：1996-12-16
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： MIYATANI TOSHIHIRO , ONO YOSHIHIRO , TODAKA MITSUMASA
IPC分类号： F23J15/00 , B01D53/30 , B01D53/50 , B01D53/56 , B01D53/68 , B01D53/81 , F23G5/16
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas treatment process for a waste disposal facility for preventing the excessive supply of a chemical and reduce the running cost. SOLUTION: The concentration of a residual noxious matter in exhaust gas after the noxious matter removing treatment generated from a combustion chamber 14 is sensed, and based on the sensed value, the amount of a chemical for reducing the noxious matter to be added into the exhaust gas before removing the noxious matter is feed back controlled, and the fluctuation of the amount of combustion air flow rate varying in compliance with the amount of combustion matter fed into the combustion chamber 14 is sensed, and based on the sensed value, the amount of the chemical to be added into the exhaust gas is feed-back-controlled to feed the chemical of optimum amount can be fed into exhaust gas at all times and prevent the wasteful use of the chemical caused by the excessive supply.

2. 发明专利

JP2003112012A METHOD OF REMOVING DIOXINS IN EXHAUST GAS OF WASTE TREATING FURNACE AND EQUIPMENT FOR THE SAME 有权
公开(公告)号：JP2003112012A
公开(公告)日：2003-04-15
申请号：JP2001305692
申请日：2001-10-01
申请人： NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： ONO YOSHIHIRO , KOBAYASHI ATSUSHI , HIGUCHI MASAKAZU
IPC分类号： B01D53/70 , B01D53/34 , B01D53/86 , B01J20/20
摘要： PROBLEM TO BE SOLVED: To provide a method of removing dioxins in exhaust gas of a waste treating furnace which reduces the effluent concentration of the dioxins to a lower level and equipment for the same. SOLUTION: The exhaust gas discharged from the waste treating furnace is cooled and is then subjected to dust collection by a bag filter 1. The dioxins in the exhaust gas after the dust collection are oxidation-decomposed by a catalytic reaction in catalyst beds 3a and further the misty dioxins are adsorbed by an adsorption bed 4a in down stream, by which the dioxins in the exhaust gas of the waste treating furnace are removed.

3. 发明专利

JPH109509A SECONDARY COMBUSTION METHOD OF PYROLYTIC GAS OF WASTE 失效
公开(公告)号：JPH109509A
公开(公告)日：1998-01-16
申请号：JP16029096
申请日：1996-06-20
申请人： KAMAISHISHI , NIPPON STEEL CORP , NITTETSU PLANT DESIGNING CORP
发明人： ISHIDA YOSHIHIRO , MURAHASHI KAZUTAKE , ONO YOSHIHIRO , EGAWA YOSHIO , EGUCHI KAZUYA
IPC分类号： F23B99/00 , B09B3/00 , F27D17/00 , F23B5/00
摘要： PROBLEM TO BE SOLVED: To stably burn the pyrolytic gas without being affected by the fluctuation in generation of the flammable dust in a secondary combustion method of the pyrolytic gas of the waste generated in treatment of wastes. SOLUTION: In a secondary combustion method of the pyrolytic gas containing the flammable dust generated in the partial combustion of wastes, the dust in the pyrolytic gas containing the flammable dust is collected by a dust remover provided in the middle of a gas duct to lead the pyrolytic gas containing the flammable gas into a secondary combustion furnace 6, and then, the pyrolytic gas is blown from a burner 7 of the secondary combustion furnace 6 and burned in a primary combustion zone 9, and the flammable dust collected by the dust remover is stored in a hopper, and the flammable dust taken from the hopper is fed to a secondary combustion zone 10 together with the air and burned there.

4. 发明公开

EP0846919A4 BURNING/MELTING METHOD OF WASTE MELTING FURNACE 失效
标题翻译：刻录/融合废炉
公开(公告)号：EP0846919A4
公开(公告)日：1999-12-08
申请号：EP97927421
申请日：1997-06-23
申请人： NIPPON STEEL CORP
发明人： ISHIDA YOSHIHIRO , TAWARA YOUICHI , KATO YASUHIKO , ONO YOSHIHIRO , KURIBAYASHI KAZUHIRO , FUKINAKA NORIO , HARAJIRI HACHIRO , MURAHASHI KAZUKI
IPC分类号： F23G5/08 , F23G5/24 , F23G5/50
CPC分类号： F23G5/085 , F23G5/24 , F23L2900/07007 , Y02E20/344
摘要： Sinking of a charge in a cross-sectional direction of a melting furnace is made uniform, poor heat-exchange between the charge and a gas due to improper sinking of the charge and local concentration of a gas flow is reduced to minimum, a melting condition of wastes is stabilized irrespective of the composition of the wastes, and a charge of a treating speed of the wastes is restricted, too. A plurality of lower stage tuyeres are disposed vertically in a burning/melting zone, carbonaceous mass-like inflammable matters are mainly burnt by supplying a combustion support gas, a plurality of upper stage tuyeres are disposed vertically in a plurality of stages at the positions above the tuyeres, and a part of the wastes is burnt by supplying the combustion support gas. In this instance, the combustion support gas equivalent to oxygen content of 130 to 600 Nm3/t of wastes is supplied, and the combustion support gas is supplied from the upper stage tuyeres so that the proportion of the oxygen content from the upper tuyeres is 0.2 to 0.8 of the sum of those of the lower and upper stages. Further, the supply quantity is controlled so that the oxygen content supplied from the lower stage tuyeres is at least 0.8 times the theoretical oxygen content of the carbonaceous mass-like inflammable matters, and the exhaust gas temperature on the packing layer of the wastes is set to 150 to 700 °C.

5. 发明专利

DE69724562T2 未知
公开(公告)号：DE69724562T2
公开(公告)日：2004-04-08
申请号：DE69724562
申请日：1997-06-23
申请人： NIPPON STEEL CORP
发明人： ISHIDA YOSHIHIRO , TAWARA YOUICHI , KATO YASUHIKO , ONO YOSHIHIRO , KURIBAYASHI KAZUHIRO , FUKINAKA NORIO , HARAJIRI HACHIRO , MURAHASHI KAZUKI
IPC分类号： F23G5/08 , F23G5/24 , F23G5/50
摘要： A melting method for waste in which charging material uniformly moves down in the cross-sectional direction thereof to prevent occurrence of failure in waste moving down or to minimize deterioration in heat exchange between waste and gas by locally concentrated gas flow, a melting condition of the waste can be stabilized and a dispersion of a waste treating rate can be restrained regardless of the waste composition, by arranging a plurality of lower tuyeres up and down in the burning and melting zone, mainly burning carbonic massive combustible material by feeding burning support gas, and arranging a plurality of upper tuyeres up and down at the upper position of the lower tuyeres, wherein, at the time of burning part of waste by feeding burning support gas, the burning support gas per waste one ton is fed to be equivalent to 130 to 600 Nm of oxygen content, the support gas feeding rate from the upper tuyeres is 0.2 to 0.8 of the total quantity of the lower and the upper tuyeres, and further the oxygen feeding rate from the lower tuyeres is controlled to not less than 0.8 time of the theoretical oxygen quantity of carbonic massive combustible material so that the exhaust gas temperature at the upper position over the waste charged layer is 150 to 700 DEG C.

6. 发明专利

DE69724562D1 未知
公开(公告)号：DE69724562D1
公开(公告)日：2003-10-09
申请号：DE69724562
申请日：1997-06-23
申请人： NIPPON STEEL CORP
发明人： ISHIDA YOSHIHIRO , TAWARA YOUICHI , KATO YASUHIKO , ONO YOSHIHIRO , KURIBAYASHI KAZUHIRO , FUKINAKA NORIO , HARAJIRI HACHIRO , MURAHASHI KAZUKI
IPC分类号： F23G5/08 , F23G5/24 , F23G5/50
摘要： A melting method for waste in which charging material uniformly moves down in the cross-sectional direction thereof to prevent occurrence of failure in waste moving down or to minimize deterioration in heat exchange between waste and gas by locally concentrated gas flow, a melting condition of the waste can be stabilized and a dispersion of a waste treating rate can be restrained regardless of the waste composition, by arranging a plurality of lower tuyeres up and down in the burning and melting zone, mainly burning carbonic massive combustible material by feeding burning support gas, and arranging a plurality of upper tuyeres up and down at the upper position of the lower tuyeres, wherein, at the time of burning part of waste by feeding burning support gas, the burning support gas per waste one ton is fed to be equivalent to 130 to 600 Nm of oxygen content, the support gas feeding rate from the upper tuyeres is 0.2 to 0.8 of the total quantity of the lower and the upper tuyeres, and further the oxygen feeding rate from the lower tuyeres is controlled to not less than 0.8 time of the theoretical oxygen quantity of carbonic massive combustible material so that the exhaust gas temperature at the upper position over the waste charged layer is 150 to 700 DEG C.

7. 发明专利

JP2000317234A BAG TYPE DUST COLLECTOR AND ITS OPERATION 失效
公开(公告)号：JP2000317234A
公开(公告)日：2000-11-21
申请号：JP13022399
申请日：1999-05-11
申请人： NIPPON STEEL CORP
发明人： ONO YOSHIHIRO , SHIBAIKE HIDEJI , MURAHASHI KAZUTAKE , MIYATANI TOSHIHIRO
IPC分类号： B01D46/02
摘要： PROBLEM TO BE SOLVED: To provide a bag type dust collector and its operating method high in adsorption efficiency of the harmful material such as HCl. SOx and dioxins. SOLUTION: The bag type dust collector 10 is constituted so that a exhaust side of filter chamber 14-16 provided respectively with the filter fabrics 11-13 for filtering exhaust gas may be connected to a common inlet side of a dust collector main body housing the plurality of filter chambers 14-16 by interposing exhaust gas return valves 29-31 and an exhaust gas return fan 32 connected to these valves. In the operating method of the bag type dust collector 10, the treated gas passing the filter chambers 14-16 just after back washing is returned to the common inlet side of the dust collector main body by interposing exhaust gas return valves 29-31 and the exhaust gas return fan 32 connected to these valves.

8. 发明专利

JPH10192657A CATALYST REGENERATION 失效
公开(公告)号：JPH10192657A
公开(公告)日：1998-07-28
申请号：JP1307197
申请日：1997-01-07
申请人： NIPPON STEEL CORP
发明人： MURAHASHI KAZUTAKE , ONO YOSHIHIRO
IPC分类号： B01D53/86 , B01D53/94 , B01J38/00
摘要： PROBLEM TO BE SOLVED: To regenerate a catalyst without stopping an incinerator. SOLUTION: This catalyst regenerating method is to regenerate a catalyst with which a catalyst tower 20 is filled and which is used for decomposing NOx and organic halogen compounds contained in a flue gas supplied from an incinerator to the catalyst tower 20 and the inside of the catalyst tower 20 is divided into two or more chambers 25-28 and, while the catalyst in one chamber being regenerated, the flue gas is led to the remaining chambers to decompose NOx and organic halogen compounds contained in the flue gas.

9. 发明专利

JPH0873044A HOPPER EQUIPPED WITH SCREW CONVEYOR 失效
公开(公告)号：JPH0873044A
公开(公告)日：1996-03-19
申请号：JP23945994
申请日：1994-09-06
申请人： NIPPON STEEL CORP , YONDEN ENG KK
发明人： SHIMIZU KIYOSHI , MIYATANI TOSHIHIRO , ONO YOSHIHIRO , ANDO TAKASHI , ASADA YUKISHIGE , NITTA MASAHIRO
IPC分类号： B65G33/18 , B65G33/26 , B65G65/46
摘要： PURPOSE: To provide a hopper equipped with a screw conveyor which can prevent the deflection of the treated substance in a hopper, permits the reduced biting even if stones, etc., are contained in a soft treated substance, and permits the small driving torque. CONSTITUTION: As for a hopper equipped with a screw conveyor which is equipped with a screw conveyor 11 for discharge at the bottom part, the outside diameter of a screw blade 14 on the counter-discharge port side of the screw conveyor 11 is made smaller than that of the screw blade 15 on the discharge port side.

10. 发明专利

JP2001191052A METHOD AND DEVICE FOR HEAT TREATING COLLECTED ASH FROM WASTE GASIFICATION MELTING FURNACE 失效
公开(公告)号：JP2001191052A
公开(公告)日：2001-07-17
申请号：JP2000298921
申请日：2000-09-29
申请人： NIPPON STEEL CORP
发明人： MURAHASHI KAZUTAKE , ARIMITSU ISAO , ONO YOSHIHIRO , MIYATANI TOSHIHIRO
IPC分类号： A62D3/00 , A62D3/30 , A62D3/38 , A62D3/40 , A62D101/08 , A62D101/22 , A62D101/28 , B01D53/50 , B01D53/68 , B01D53/81 , B01D53/86 , B09B3/00 , C07B35/06 , C07B37/06 , C07D319/24
摘要： PROBLEM TO BE SOLVED: To provide a method and a device for efficiently decomposing organic materials such as organic halogen compounds contained in collected ash, while are applied for heat treating collected ash discharged from a coke bed type gasification high temperature melding integrated process and small in unburnt carbon. SOLUTION: The contained organic halogen compounds are reduced by heating the collected ash from a waste gasification melting furnace 1 and the organic halogen compounds are oxidized and decomposed by heating the collected ash with a heating device 13, keeping at 400-550 deg.C in the presence of air to transfer the organic materials such as the organic halogen compounds to a gas side, passing the waste gas through a filter ash layer composed of secondary fly ash from a filter type duct collector 18 and bringing it into contact with a catalyst in a catalytic reactor 19.

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