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1. 发明专利

JPH07110192A NON-METAL MELTING FURNACE 失效
公开(公告)号：JPH07110192A
公开(公告)日：1995-04-25
申请号：JP28162693
申请日：1993-10-14
申请人： TOKYO GAS CO LTD , NITSUKAN CHIKURO KOGYO KK
发明人： WATANABE KAZUFUMI , ISEDA YOSHIHISA , KINOSHITA AKIRA , YOSHIKAWA HIDEO
IPC分类号： F27B17/00
摘要： PURPOSE:To cause a non-metal melting furnace to be one of which operation can be performed within a short period of time, in an energy-saving mode and to be operated for multi types and in less volume production. CONSTITUTION:A furnace 1 is formed with some refractory materials. One opening is used as a molten material feeding port 2a and the other opening as a molten metal feeding-out port 2b. This tube 2 having such openings or a trough member is passed through the furnace and fixed to the furnace 1. The furnace 1 is provided with a heating means for heating a part of a cavity 10 within the tube 2 or trough in the furnace 1. Either the tube 2 or the trough member is inclined and passed through the furnace 1 or passed in a horizontal direction, the furnace 1 is supported by an inclination changing means to enable the inclination of the furnace 1 to be changed. Either the tube 2 or the trough is preferably set in such a way that it may be removaly attached to the furnace 1.

2. 发明专利

JPH07110190A NON-IRON METAL MELTING AND HOLDING FURNACE 失效
公开(公告)号：JPH07110190A
公开(公告)日：1995-04-25
申请号：JP28162793
申请日：1993-10-14
申请人： TOKYO GAS CO LTD , NITSUKAN CHIKURO KOGYO KK
发明人： WATANABE KAZUFUMI , ISEDA YOSHIHISA , KINOSHITA AKIRA , YOSHIKAWA HIDEO
IPC分类号： F27B14/08 , F27B14/14
摘要： PURPOSE:To faciliate manufacturing, repairing and partial replacement, improve a thermal efficiency and reduce a difference in temperatures at an upper part and a lower part of a cylindrical furnace having a crucible by a method wherein the furnace is formed in such a way that it may be divided into a plurality of upper and lower segment stages, and means for heating the stored crucible is arranged. CONSTITUTION:A base block 3 comprised of a side circumference 1 and a bottom plate 2 is applied as a crucible receiving part. The base block is made of refractory material. In turn, a metal mat 6 is arranged at an inner surface of a cylinder 4 made of refractory material through a mixture gas room 5. A surface combustion burner 8 provided with a mixture gas supplying port 7 opened at the mixture gas room 5 is arranged and mounted at the upper surface of a side circumference 1 through a seal member 9. An upper furnace member 13 made of refractory material is mounted at the upper part of the surface combustion burner 8 through a seal member 12. A discharged gas cylinder 11 opened into a space 10 above the bottom plate 2 is arranged. Then, a crucible 16 is installed on the upper surface of the bottom plate 2 through the block 15 and then a lid 18 hermetical closing the space 10 is arranged at the upper edge of the crucible through a seal member 17.

3. 发明专利

JPH10160350A METAL CHIP MELTING FURNACE 失效
公开(公告)号：JPH10160350A
公开(公告)日：1998-06-19
申请号：JP32122696
申请日：1996-12-02
申请人： TOKYO GAS CO LTD
发明人： ISEDA YOSHIHISA , MORISHITA TORU
IPC分类号： C22B9/16 , F27B3/02 , F27B3/18
摘要： PROBLEM TO BE SOLVED: To increase a speed of immersion in molten iron and to perform reliable immersion by providing a raw material inserting pipe running from the outside of a molten iron pool to the inside of the molten iron pool along one of the inner wall surface of the molten iron pool and through which metal chips to be melted is fed. SOLUTION: A metal chip melting furnace is formed to be heated indirectly from the outside of a molten iron pool by a heating means. Further, solution is effected in a way that metal chips are brought into contact with molten iron of a dissolved metal in the molten iron pool 10. A raw material insertion pipe 11 through which metal chips to be melted are fed in molten iron, stored in the molten iron pool 10, from the outside of the molten iron pool 10 is provided. The tip side of the tubular raw material insertion pipe 11 is formed in a manner to extend to the vicinity of the inner bottom of the molten iron pool 10, where a raw material, i.e., the chips are reliably immersed in molten iron and oxidation of a raw material is prevented from occurring.

4. 发明专利

JPH08313160A FURNACE APPARATUS AND COMBUSTION METHOD 失效
公开(公告)号：JPH08313160A
公开(公告)日：1996-11-29
申请号：JP11872995
申请日：1995-05-17
申请人： TOKYO GAS CO LTD
发明人： WATANABE KAZUFUMI , ISEDA YOSHIHISA
IPC分类号： F23G7/00 , F23C3/00 , F23L15/02 , F27B9/06 , F27B9/36
摘要： PURPOSE: To facilitate exchange of a heat storage body by a method wherein a fuel nozzle is so arranged to be opened in a furnace body located away from a heat storage chamber and an inner-furnace radiation tube is installed in the furnace body to charge a material to be heated on the center axis thereof. CONSTITUTION: Heat storage chambers 3A and 3B which are opened in a furnace body 1 while making a pair are arranged in the furnace body 1. Fuel nozzles 4 to be set corresponding to the respective heat storage chamber 3A and 3B are so arranged to be opened in the furnace body 1 located away from the heat storage chambers 3A and 3B. An inner-furnace radiation pipe 6 is installed in the furnace body 1 to charge a material 5 to be heated on the center axis thereof. When the furnace body 1 is used as a melting furnace, it is inclined slightly so that molten metal 7 flows out naturally and can be introduced into a holding chamber 13 at a pouring gate. This facilitates the exchanging of a heat storage body 11 and can minimize the oxidation of the material 5 to be heated thereby enabling significant reduction in a scale loss.

5. 发明专利

JPH06147433A REGENERATIVE RADIANT TUBE BURNER 失效
公开(公告)号：JPH06147433A
公开(公告)日：1994-05-27
申请号：JP23613692
申请日：1992-09-03
申请人： TOKYO GAS CO LTD
发明人： YASUOKA SHO , ISEDA YOSHIHISA
IPC分类号： F23C99/00 , F23D14/12 , F23L15/02 , F23C11/00
摘要： PURPOSE:To provide a compact-sized regenerative radiant tube burner which is serviceable even when a furnace temperature is under a specific high temperature, and minimizes the amount of emitted oxide nitrogen and eliminate any projected part from the outside of a furnace body. CONSTITUTION:A ceramic-made straight tube 2 is adapted to penetrate through a furnace body 1 and a heat storage layer 4 and a thick and thin two stage combustion mechanism which provides a flame formation nozzle 5 in the heat storage layer is installed to the part positioned in the furnace body wall 3 of the straight tube 2. The thick and thin combustion mechanism is positioned inside a furnace body wall 3 on both sides of the straight tube 2 so that combustion may take place alternately. This construction makes it possible to inhibit the generation of oxide nitrogen and compact the size of the furnace body and execute the service even at a furnace temperature which exceeds 1000 deg.C. In addition to that, it is possible to use the heat storage layer and the thick and thin two stage combustion mechanical area even at a low temperature range of at most 1000 deg.C.

6. 发明专利

JP2002206121A METHOD FOR INHIBITING OXIDATION OF MOLTEN MAGNESIUM 失效
公开(公告)号：JP2002206121A
公开(公告)日：2002-07-26
申请号：JP2000402279
申请日：2000-12-28
申请人： TOKYO GAS CO LTD , TOKYO GAS CHEMICALS CO LTD
发明人： NODA HIROKAZU , ISEDA YOSHIHISA , OGA SHINICHI
IPC分类号： C22B9/16 , F27B14/04 , F27D7/02
摘要： PROBLEM TO BE SOLVED: To solve the problem that, although the inside of a magnesium melting or melting and holding furnace is filled with gaseous mixture prepared by diluting gaseous sulfur hexafluoride (SF6) with air or gaseous carbon dioxide (CO2) in order to prevent the oxidation of magnesium in high-temperature state, gaseous sulfur hexafluoride exerts an adverse effect on the problem of global environmental warming because it has a global warming coefficient of 23,900 and an extremely high greenhouse effect as compared with the case of gaseous CO2 and there is an apprehension about its use. SOLUTION: In the oxidation inhibiting method, the inside 20 of the magnesium melting furnace or melting and holding furnace or a molten magnesium feed path 9 is filled with gaseous krypton or a gaseous mixture of gaseous krypton and air or gaseous carbon dioxide.

7. 发明专利

JPH11159711A BURNER COMPRISING HETEROGENEOUS MATERIAL JOINT TYPE SLEEVE 失效
公开(公告)号：JPH11159711A
公开(公告)日：1999-06-15
申请号：JP32910297
申请日：1997-11-28
申请人： TOKYO GAS CO LTD
发明人： ISEDA YOSHIHISA , MORISHITA TORU , TAKEBE JIRO
IPC分类号： F23D14/26 , F23D14/24 , F23D14/46
摘要： PROBLEM TO BE SOLVED: To improve usage temperature, durability, and handling characteristics by configuring a sleeve wherein an air circulator or a flame protector are housed inside using joint of heterogeneous material. SOLUTION: In a heterogeneous material joint type sleeve 11, a root-side wall surface 11a which is on rear root-side of a jetting part of a mixed air pipe 13 (or a fuel pipe 13), in other words, a part not directly contacting a flame is configured of metal, while a tip-side wall surface 11b which is on front tip-side of the jetting part of the mixed air pipe 13, in other words, a part directly exposed to the flame is configured of ceramics.

8. 发明专利

JPH1182938A COMBUSTION BURNER MOUNTED ON CURVED SURFACE 失效
公开(公告)号：JPH1182938A
公开(公告)日：1999-03-26
申请号：JP23518797
申请日：1997-08-29
申请人： TOKYO GAS CO LTD
发明人： SHIZUKUISHI SHIN , ISEDA YOSHIHISA
IPC分类号： F23D14/16 , F23C5/02
摘要： PROBLEM TO BE SOLVED: To prevent the leakage of fuel and combustion air from parts except a burner material. SOLUTION: A cylindrical space 12 is provided in the central part of a cage 11 annular in section, an outer peripheral side wall 11a is formed with a metallic plate, and a top part 11b and a bottom part 11c are formed with ceramic fiber boards. A burner material 13 such as a fiber mat is cylindrically extended along the inner surface of the space pad 12 and fixed to the top 11b and the bottom 11c by means of bolts 14 or the like. In a premix air introducing space 15 of the case 11, a sealant 17 such as coating cement is applied to the surface of the ceramic fiber board. The ceramic fiber boards are previously impregnated with the sealant 17.

9. 发明专利

JPH1026474A METALLIC CHIP MELTING FURNACE 失效
公开(公告)号：JPH1026474A
公开(公告)日：1998-01-27
申请号：JP17772796
申请日：1996-07-08
申请人： TOKYO GAS CO LTD
发明人： ISEDA YOSHIHISA , MORISHITA TORU
IPC分类号： C22B9/16 , F27B3/06 , F27B9/22
摘要： PROBLEM TO BE SOLVED: To improve an efficiency by permitting a melting chamber filled by metallic chips to be molten uniformly with a high density. SOLUTION: A hopper 13 for charging metallic chips M into a melting chamber 11 is provided at the high position side of the melting chamber 11 and a metallic chip inserting device 14 for pushing the metallic chip M into the melting chamber 11 is arranged at the opening port side of the melting chamber 11 near the hopper 13. A molten metal tapping port 15 is provided at the end surface of the lowest position side of the melting chamber 11 and a perforated resistance plate 16, on which a multitude of holes are bored, is arranged in the molten metal tapping port 15.

10. 发明专利

JPH09170759A IGNITION DEVICE FOR SURFACE COMBUSTION BURNER 失效
公开(公告)号：JPH09170759A
公开(公告)日：1997-06-30
申请号：JP33128895
申请日：1995-12-20
申请人： TOKYO GAS CO LTD
发明人： ISEDA YOSHIHISA , MORISHITA TORU
IPC分类号： F23D14/02 , F23Q3/00
摘要： PROBLEM TO BE SOLVED: To prevent an erroneous ignition within a burner, prevent a damage at a combustion surface with a spark and enable an ON/OFF control to be carried out by a method wherein an extremity end of a metallic cylindrical pipe is provided with a projection in a radial direction and the projection is formed at a spark receiving plane acting to support a spark rod and to support an ignition device by itself. SOLUTION: An extremity end of a metallic cylindrical pipe 2 is provided with a projection 3 in a radial direction, the projection 3 is formed as a spark receiving plane 4 acting as a spark rod supporting section. A spark rod 6 is fitted into the cylindrical pipe 2 through an insulating member 5, its extremity end is faced against the spark receiving plane 4, a spark rod fixing member 7 is installed at a rear part of the metallic cylindrical pipe 2 so as to fix the spark rod 6. A spark distance 11 at the extremity end between the spark receiving plane 4 and the spark rod 6 is adjusted by the spark rod fixing member 7 by itself. A spark is generated between the spark receiving plane 4 and the extremity end of the spark rod 6 so as to ignite gas.

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