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31. 发明专利

JPH10192815A METHOD FOR EXTENDING LIFE OF FINAL RECLAIMED SITE FOR REFUSE INCINERATION ASH 失效
公开(公告)号：JPH10192815A
公开(公告)日：1998-07-28
申请号：JP488997
申请日：1997-01-14
申请人： HITACHI SHIPBUILDING ENG CO
发明人： YASHIMA SHOICHI , KATO MASAFUMI , SHIGIHARA YOSHIMASA , ISHIDA MICHIO , KAWAGUCHI SATOSHI , KONO TADASHI
IPC分类号： B09B1/00 , B09B3/00
摘要： PROBLEM TO BE SOLVED: To extend the life of a final reclaimed site by a method in which in the final reclaimed site in which refuse incineration ash is embedded, and the embedded ash is dug up, melted, and volume-reduced. SOLUTION: Refuse incineration ash 2 embedded in a final reclaimed site 1 is dug up in a work house 3, transported to a dewatering site 10 by a truck 5, dewatered, transported by a truck, and charged into a hopper 14. The ash 2 in the hopper 14 is sent by a specified quantity to a vibrating screen 15, where large foreign matters such as metal, glass, and plastic are removed to be stored in a foreign matter yard 16. Next, the ash 2, after being sent to a magnetic selector 17 to remove iron scraps, is sent to a burner type ash melting furnace 19 to be melted, the molten slag is dropped into a cooling apparatus to be water-granulated and discharged as water-cooled slag, which is stored in a slag yard 21 and used effectively as a civil engineering material and a soil improving material.

32. 发明专利

JPH06193854A ELECTRIC ASH MELTING FURNACE 失效
公开(公告)号：JPH06193854A
公开(公告)日：1994-07-15
申请号：JP21932093
申请日：1993-09-03
申请人： HITACHI SHIPBUILDING ENG CO
发明人： SASAKI KUNIO , OGINO ETSUO , SHITAYA HIDEO , KONO TADASHI , FUJISAKI TOYOHISA , ITO MICHIO , TAKAKURA CHITOSE , AOKI TOMOHIRO
IPC分类号： F23G5/00 , F23J1/00
摘要： PURPOSE:To effectively suppress generation of volatile substance such as heavy metals, dust, fume, etc. CONSTITUTION:A funnel-like ash filling chamber 7 for containing gas absorption ash filling layer L continued to melted metal 3 is formed at a ceiling of a melting chamber 4 for containing the metal 3 to be melted by electrodes 2, an ash introducing inlet 9 is provided at the ceiling of the chamber 7, and an exhaust gas tube 11 connected into an incinerator is connected. Thus, volatile substance and dust are caught by the ash filling layer of the chamber 7 to be precipitated, and returned to the chamber 4.

33. 发明专利

JPH06147452A METHOD FOR SUPPLYING ASH TO BURNER TYPE ASH MELTING FURNACE 失效
公开(公告)号：JPH06147452A
公开(公告)日：1994-05-27
申请号：JP29669592
申请日：1992-11-06
申请人： HITACHI SHIPBUILDING ENG CO
发明人： SASAKI KUNIO , OGINO ETSUO , SHITAYA HIDEO , KONO TADASHI , FUJISAKI TOYOHISA , ITO MICHIO , TAKAKURA CHITOSE , AOKI TOMOHIRO
IPC分类号： F23J1/00
摘要： PURPOSE:To provide a uniform heating and melting of ash by a method wherein occurrence of bridge within a hopper or adhesion and solidification of ash against the hopper, a pushing device and an ash supplying port are prevented. CONSTITUTION:Ash is fed into a forming mold of a pressing machine and pressurized there to form an ash block 12, thereafter this ash block 12 is supplied by a pushing device 9 into an ash melting furnace 6. With such an arrangement, the solid ash is pushed into the pushing device 9 in sequence to cause a hopper to be eliminated and then a pushing force can be uniformly transmitted and the ash block is hardly melted at its supplying part and also the block is not adhered to its supplying part.

34. 发明专利

JPH0682027A MELTING FURNACE 失效
公开(公告)号：JPH0682027A
公开(公告)日：1994-03-22
申请号：JP23398592
申请日：1992-09-02
申请人： HITACHI SHIPBUILDING ENG CO
发明人： SASAKI KUNIO , OGINO ETSUO , SHITAYA HIDEO , KONO TADASHI , FUJISAKI TOYOHISA , ITO MICHIO , TAKAKURA CHITOSE
IPC分类号： F23J1/00 , F23J1/08
摘要： PURPOSE:To provide a melting furnace which is bearable for use of a long period of time and the melting of inorganic solid substance such as ash efficiently and evenly. CONSTITUTION:In a melting furnace which heats ash to melt. a weir part 46 is formed on a bottom wall part 45 of a furnace body 41 and a melting tank 47 is formed at the bottom of the furnace body 41. Electrodes 48 and 49 are arranged inside the melting tank to heat the ash accumulated in the melting tank, a ceiling section of the furnace body 41 positioned above a discharge port 44 and the weir part 6 is formed semi-circular protruding upward at the center thereof and a main burner 53 for heating is arranged on the semi-circular ceiling section 50. The burning with the heating burner 53 is directed askew downward to a liquid surface of the ash positioned below the end part biased to the feed port of the curved ceiling section 50. Thus, a circulation flow (a) is generated in the melted ash in the melting tank 47 to keep melting condition better.

35. 发明专利

JPH05322142A ROTARY FURNACE 失效
公开(公告)号：JPH05322142A
公开(公告)日：1993-12-07
申请号：JP12398592
申请日：1992-05-18
申请人： HITACHI SHIPBUILDING ENG CO
发明人： OGINO ETSUO , SASAKI KUNIO , SHITAYA HIDEO , KONO TADASHI , FUJISAKI TOYOHISA , ITO MICHIO , KINOSHITA MASAO
IPC分类号： F23G5/00 , F23G5/20 , F23G5/44
摘要： PURPOSE:To stabilize a combustion state and prevent clinker from being generated by a method wherein a small diameter part forming a drying zone is provided with a feeding hopper for feeding materials to be ignited and a primary air supplying port and a stepped part between a large diameter part and the small diameter part forming a combustion zone is provided with a secondary air supplying port and an injection water nozzle in such a manner that they are directed downwardly. CONSTITUTION:A furnace main body 1 supported by a rotary supporting roller 11 is comprised of a small diameter part 2 forming a drying zone A and a large diameter part 3 forming a combustion zone B. An end plate 5 at the small diameter part 2 is provided with a hopper 12 for use in feeding the combustion material C and a primary air supplying port 13. An annular wall 4 serving as a stepped part between the small diameter part 2 and the large diameter part 3 is provided with a secondary air supplying port 14 and an atomization water nozzle 15 in such a manner that they are directed downwardly. With such an arrangement as above, it is possible to attain a positive combustion and to prevent clinker caused by molten ashes from being generated.

36. 发明专利

JPS6311649A SPHEROIDAL GRAPHITE CAST IRON FOR PALLET OF SINTERING MACHINE 失效
公开(公告)号：JPS6311649A
公开(公告)日：1988-01-19
申请号：JP15673086
申请日：1986-07-02
申请人： HITACHI SHIPBUILDING ENG CO
发明人： HASEGAWA MASAE , KONO TADASHI , AKESADA MASATOSHI , OSHIO KATSUHIRO , NAKAMOTO TAKAMI
IPC分类号： C22C37/04
摘要： PURPOSE:To decrease cracks, dimensional distortions and bends and to extend the life of a pallet by incorporating specific ratios of Ni and Mo into a specifically composed spheroidal graphite cast iron. CONSTITUTION:This spheroidal graphite cast iron consists, by weight, 3.4-3.8% C, 1.85-3.0% Si, 0.2-0.6% Mn,

37. 发明专利

JPH10238950A WORKING GAS CONNECTOR FOR ELECTRIC FURNACE AND ATTACHING/DETACHING DEVICE THEREFOR 失效
公开(公告)号：JPH10238950A
公开(公告)日：1998-09-11
申请号：JP4128097
申请日：1997-02-26
申请人： HITACHI SHIPBUILDING ENG CO
发明人： SATO HIDEO , KONO TADASHI , SAKATA SHIRO , SAKAKIBARA KOJI , NORITOMI KATSUYA
IPC分类号： H05B7/14 , F27B3/08 , F27B3/20
摘要： PROBLEM TO BE SOLVED: To provide a working gas connector of which attachment and detachment to an electrode is easy and to provide a attaching and detaching device of it. SOLUTION: A working gas connector 21 comprises a cap part 27 having the connecting hole 26 connecting between the connecting hole 24 of piping and the base edge part 25A of an electrode and covering the base edge part 25A of the electrode and an air tube 28 sealing between the cap part 27 and the side surface of the base edge part 25A of the electrode by supplying air and a attaching and detaching device 22 comprises an arm 38 and a first air cylinder 39 being connected to the outer surface of the cap part 27 of the connector and ascending or descending the connector 21, a second air cylinder 43 rotating these elevating means horizontally, an elevating means ascending and descending the connector, a rotating means rotating the elevating means horizontally and a controller attaching or detaching the connector 21 on the base edge part 25A of the electrode by driving an air supplying means. Therefore, the connector 21 can be attached or detached with a simple structure.

38. 发明专利

JPH09178153A DUST REMOVER FOR EXHAUST DUCT IN HIGH TEMPERATURE MELTING FURNACE 失效
公开(公告)号：JPH09178153A
公开(公告)日：1997-07-11
申请号：JP34206195
申请日：1995-12-28
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ISHIDA MICHIO , KAWAGUCHI SATOSHI , NORITOMI KATSUYA , KONO TADASHI
IPC分类号： F23J1/08 , F23J3/02
摘要： PROBLEM TO BE SOLVED: To prevent the lowering of operation efficiency of a melting furnace by providing a rod-shaped moving member free to move along the direction of the axis of an exhaust duct while a blade member for removing dust arranged free to rotate in the radial direction of the moving member about the axis of the exhaust duct. SOLUTION: A rod-shaped tube 10 (moving member) is inserted along the axis of a horizontal part from a side part of the horizontal part of an exhaust duct 2 and supported free to move along the direction of the axis of the horizontal part of the exhaust duct 2 while being supported free to move about the axis of the horizontal part. A blade member 13 for removing dust D is mounted in the radial direction of the tip part of the tube 10. With the rotation of the tube 10, the blade member 13 rotates to remove the dust D adhering to an internal wall surface of the horizontal part of the exhaust duct 2. This enables use even during the operation of a melting furnace 1 thereby preventing the lowering of the operation efficiency of the melting furnace 1.

39. 发明专利

JPH0985123A MAGNETIC SEPARATOR FOR MOLTEN SLAG 失效
公开(公告)号：JPH0985123A
公开(公告)日：1997-03-31
申请号：JP25000095
申请日：1995-09-28
申请人： HITACHI SHIPBUILDING ENG CO
发明人： HAMABE KOHEI , KAWAGUCHI SATOSHI , KONO TADASHI
IPC分类号： B03C1/22
摘要： PROBLEM TO BE SOLVED: To improve the removal rate of the iron-components in molten slag by arranging a magnetic force generating member above the transporting device in a device for removing the iron-components in molten slag by using magnetic force and disposing plural magnetic members in juxtaposition on endless rotating bodies rotating around this magnetic force generating member. SOLUTION: The respective magnetic sepn. chains 11 have magnetic force at the time the rear surface of a belt 10 comes into sliding contact with the base of the magnet 5 when the belt 10 is rotated around the magnet 5 by a driving motor 8. The respective magnetic sepn. chains 11 ride on the transporting surface 13 of the belt conveyor 4 when the chains arrive at this surface and move so as to rub the transporting surface 13 by attaining the deflected state from the straight shape. The chains pass evenly in the molten slag 2 under movement so as to stir the molten slag, thereby attracting the iron-components. Next, the magnetic sepn. chains 11 pass over the transporting surface 13 of the belt conveyor 4 and swing so as to restore the straight shape by their own weights until the chains are detached from the magnet 5, by which the magnetic force is released. The attracted iron-components 3 are then dropped alongside the conveyor 4.

40. 发明专利

JPH08327042A ASH FUSION FURNACE 失效
公开(公告)号：JPH08327042A
公开(公告)日：1996-12-10
申请号：JP13706795
申请日：1995-06-05
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ISHIDA MICHIO , KUWABARA TSUTOMU , KAWAGUCHI SATOSHI , KONO TADASHI
IPC分类号： F23G5/00 , F23J1/00
摘要： PURPOSE: To prevent slug, metals or the like from solidifying at a slug take-out port, through which fused slug is taken out from a fusion chamber. CONSTITUTION: An induction heating device 21, in which an electromagnetic induction coil 23 having water cooling holes 25 is embedded, is provided in castable refractories 22 around a slug take-out port. Accordingly, the electromagnetic induction coil produces induced current in fused slug, metals or the like, which constitute electric conductors, to effectively heat the same with Joule heat thereof and enable preventing the fused slug, metals or the like from solidifying and attaching to the slug take-out port.

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