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公开(公告)号：JP2005090792A
公开(公告)日：2005-04-07
申请号：JP2003321652
申请日：2003-09-12
Applicant: Furukawa Co Ltd , 古河機械金属株式会社
Inventor： SATO SEIKAN , TAIRA KOJI
Abstract: PROBLEM TO BE SOLVED: To provide a coke bed type melting treatment device capable of separating metal from molten slag to produce the slag of high quality by improving a condition of the molten slag in a furnace bottom.
SOLUTION: In a melting furnace 1 constituting this coke bed type melting treatment device, a slag tapping port 32 and a metal tapping port 33 are formed in upper and lower two stages in the furnace bottom 30, a pair of furnace bottom tuyeres 34 are formed, and the air-blasting direction from each furnace bottom tuyere is offset to an outer side with respect to a center O of the furnace bottom in a plan view.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供一种能够通过改善炉底中的熔渣的状态来将金属与熔渣分离以产生高质量的炉渣的焦炭型熔融处理装置。 解决方案：在构成该焦炭型熔融处理装置的熔炉1中，在炉底30的上下两级形成有排渣口32和金属排出口33，一对炉底风口 34，并且来自每个炉底风口的喷气方向在俯视图中相对于炉底的中心O偏移到外侧。 版权所有（C）2005，JPO＆NCIPI
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72.发明专利
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公开(公告)号：JP2004293993A
公开(公告)日：2004-10-21
申请号：JP2003089474
申请日：2003-03-28
Applicant: Jfe Engineering Kk , Jfeエンジニアリング株式会社
Inventor： TANABE MINORU , YOSHINARI YUUSUKE
Abstract: PROBLEM TO BE SOLVED: To provide a melting furnace for gasifying refuse and an operation method for it, keeping stable operation by estimating a change in properties of refuse from variation of exhaust gas properties without a special device such as a gas analyzer.
SOLUTION: This melting furnace for gasifying refuse includes: a first means for measuring or calculating the quantiy of refuse supplied to the melting furnace per unit hour, an auxiliary fuel quantity for gasifying and melting the above quantity of refuse and the quantity of air and the quantity of oxygen supplied from the respective tuyeres; a second means for measuring or calculating the quantity of exhaust gas discharged from the melting furnace per unit hour and component contained in exhaust gas; and a third means for calculating the quantity of non-combustible refuse of the refuse supplied per unit hour. The variation in the quantity of water per unit hour of the gasified and melt refuge, the non-combustible quantity and the combustible quantity can be estimated by the first, second and third means.
COPYRIGHT: (C)2005,JPO&NCIPI-
公开(公告)号：JP2004239596A
公开(公告)日：2004-08-26
申请号：JP2003196658
申请日：2003-07-14
Applicant: Nippon Steel Corp , 新日本製鐵株式会社
Inventor： HIDAKA RYOTA , MURAHASHI KAZUTAKE , ISHIDA YOSHIHIRO , KATOU YASUHIKO
IPC: H05B6/22 , B09B3/00 , C02F11/10 , F23G5/24 , F23G5/44 , F27B1/09 , F27B1/12 , F27B1/14 , F27B1/21 , F27D11/06
Abstract: PROBLEM TO BE SOLVED: To provide a waste melting furnace capable of melting waste by efficiently carrying out induction heating of a conductive substance in a hearth, and suppressing heating loss due to flowing of an eddy current in a furnace shell.
SOLUTION: The waste melting furnace carries out induction heating by applying a high frequency current to the conductive substance filled in a furnace bottom by an induction heating coil 10 arranged in a furnace lower part. The furnace shell 15 is composed of a non-magnetic metal with low electric resistance, the induction heating coil 10 is installed in an outer side of the furnace shell 15, at least one portion in a circumferential direction of the furnace shell 15 is electrically isolated, vertical electric isolation of the furnace shell 15 from upper and lower metal furnace bodies is carried out by horizontally forming dividing parts 21 at positions in upper and lower end neighborhoods of the induction heating coil 10, and the dividing parts 21 are used as permeation paths of a magnetic flux into the furnace.
COPYRIGHT: (C)2004,JPO&NCIPI-
Patent Agency Ranking76.发明专利
公开(公告)号：JP2004205180A
公开(公告)日：2004-07-22
申请号：JP2002383414
申请日：2002-12-20
Applicant: Katsuhiro Ito , 勝弘 伊藤
Inventor： ITO KATSUHIRO
CPC classification number: Y02E20/348 , Y02P80/152
Abstract: PROBLEM TO BE SOLVED: To provide a cyclone incinerating/melting system and an incinerating/melting furnace to be used for the same, applicable as a medium/small scale combustion system and as a melting furnace for completely controlling dioxine with a heat source being adjusted while supplying air downward from a caster body efficiently using an air ratio and auxiliary fuel.
SOLUTION: Incinerated/melted object materials are charged from the side face of the caster body. An upper limit temperature and a lower limit temperature are set as 1350°C or so and 1000-1200°C or so by a temperature sensor in connection. Combustion is carried out at 1300-1350°C. Air of 60-100°C is moved down from the upper part along the side wall of a caster. While efficiently adjusting the heat source using the air ratio and the auxiliary fuel, dioxine is completely controlled.
COPYRIGHT: (C)2004,JPO&NCIPI-
公开(公告)号：JP2004170000A
公开(公告)日：2004-06-17
申请号：JP2002336611
申请日：2002-11-20
Applicant: Chiyoda Enji:Kk , 株式会社千代田エンジ
Inventor： KANEKO YASUO , KAWAKAMI NOBUO
CPC classification number: Y02E20/344
Abstract: PROBLEM TO BE SOLVED: To render harmless a container from which PCB oil was drained and a PCB contaminated matter. SOLUTION: In this PCB incineration/melting furnace, a primary combustion chamber 3 is formed in a furnace 1 on the lower side of a water-cooled grate 2 and a secondary combustion chamber 4 is formed on the upper side thereof. A PCB burner 6 burning the mixture of PCB oil and pure oxygen and an auxiliary burner 5 burning the mixture of auxiliary fuel and pure oxygen are installed in the primary combustion chamber 3, and the primary combustion chamber 3 is kept at a temperature of 1700°C or higher. An air supply port 15 for filling secondary combustion air enriched with oxygen is provided in the secondary combustion chamber 4 to keep the secondary combustion chamber 4 at a temperature of 1300 to 1500°C. An inlet port 7 for PCB contaminated matter is provided in the secondary combustion chamber 4, and a feeding device 8 is installed on the outside of the inlet 7. The PCB contaminated matter such as containers is thrown from the inlet 7 into the secondary combustion chamber 4 through the feeding device 8 and incinerated/molten. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2004155915A
公开(公告)日：2004-06-03
申请号：JP2002323022
申请日：2002-11-06
Applicant: Kangen Yoyu Gijutsu Kenkyusho:Kk , 株式会社還元溶融技術研究所
Inventor： KUME SHOICHI
Abstract: PROBLEM TO BE SOLVED: To solve the problem that, in a conventional method, the treatment of livestock products, discharged materials thereof, or an abnormal prion of BSE is conducted at a low temperature; hence, sometimes the treatment is insufficient and a part of bones and meat is discharged as it is as incombustible or unburned matters. SOLUTION: The high-temperature melt reduction gasification method for livestock product wastes and discharged materials thereof subjects cows probably with bovine spongiform encephalopathy (BSE), powdered meat and bones derived therefrom, and stock farm product wastes (e.g. the stock farm products such as their internal organs after dissection) or discharged materials thereof to high-temperature melt reduction gasification at 1,200-2,600°C by using a melting furnace. In the method, the basicity of molten slag is controlled to 0.4-1.4 in terms of SiO 2 ; and a high-temperature melt reduction gas is recovered as an energy resource. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2004150653A
公开(公告)日：2004-05-27
申请号：JP2002313814
申请日：2002-10-29
Applicant: Hitachi Ltd , 株式会社日立製作所
Inventor： ISHIZAWA SHUICHI , IKEUCHI TOSHIAKI
Abstract: PROBLEM TO BE SOLVED: To provide a gasification melting furnace in which attachment and growth of ash on inner parts of a diffuser can be prevented. SOLUTION: This gasification melting furnace comprises the diffuser 11 to provide waste in the form of ash from a gasification furnace, a melting furnace main body 31 to melt noncombustible matter in the waste provided from the diffuser 11, and a slag discharge means 41 to discharge ash in the form of slag from the melting furnace main body 31. In this gasification melting furnace, the diffuser 11 is composed in a restriction structure 15 having a throat in the middle. A boiler 51 is disposed around piping to provide waste from the gasification furnace to the diffuser, and above the diffuser 11. A steam pipe is disposed in a wall of the diffuser 11, so that the diffuser 11 is cooled by steam supplied from the boiler 51 to the steam pipe. COPYRIGHT: (C)2004,JPO
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