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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

JPH0979533A SURFACE MELTING FURNACE USING GAS FUEL 失效
公开(公告)号：JPH0979533A
公开(公告)日：1997-03-28
申请号：JP24104895
申请日：1995-09-20
申请人： TAKUMA KK , TOKYO GAS CO LTD
发明人： KAWAI YOSHIHISA , RIYUU DAII , SHIBATA KIYOSHI , WATANABE KAZUFUMI , SHIGETA EIJI , SUZUKI YASUNOBU
IPC分类号： F23G5/00 , F23C99/00 , F23J1/00 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To reduce the melt treatment capacity, an initial cost and a running cost by heating and melting a matter to be melted such as incineration slag by a combustion flame from a gas burner for burning a gas fuel with air provided on the ceiling of the body of a melting furnace to miniaturize the body of the melting furnace and other equipment. SOLUTION: A gas fuel 14 such as city gas, LPG or LNG is supplied to a melting/solidifying treatment equipment and after a reduction in pressure, it is supplied to a gas burner 5 of a surface melting furnace 1 being controlled by a combustion controller 13. The gas burner 5 is provided on the ceiling 4 of the body of the melting furnace and supported securely on the surface of the matter 7 to be melted such as incineration slag and crushed incombustible of city garbage at a roughly vertical attitude. Combustion air from a force blower 12 is heated by a radiation type air preheater 10 and then, supplied to the gas burner 5 being controlled by a combustion controller 13. Thus, the matter 7 to be melted is melted sequentially by a flame radiated vertically toward the melting surface 7a of the matter 7 to be melted.

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

JPH08135936A METHOD AND APPARATUS FOR INDIRECTLY MELTING INCINERATION ASH 失效
公开(公告)号：JPH08135936A
公开(公告)日：1996-05-31
申请号：JP27788994
申请日：1994-11-11
申请人： TOKYO GAS CO LTD
发明人： NAKAMACHI ICHIRO , WATANABE KAZUFUMI
IPC分类号： F23G5/00 , F23C3/00 , F23L15/02
摘要： PURPOSE: To prevent any dust from scattering externally owing to exhaust gas by melting and discharging ash in a slanting ash melting chamber while alternately combusting the ash with a regenerative burner including at opposite ends of a radiation pipe a pumping part having a heat storage material and a fuel supply part having a flame keeping part. CONSTITUTION: A plurality of regenerative burners I are disposed on an upper wall of a slanting ash melting chamber 6 perpendicularly to the longitudinal direction of the slanting ash melting chamber 6, each regenerative burner 1 including a pumping part 13 having a heat storage material 3 and a fuel supply part 4 having a flame keeping part 5 at opposite ends of a radiation pipe 2. First, on the side A combustion air introduced from the pumping part 13 is additionally heated with the heat storage material 3 and is forced to enter the radiation pipe 2. In contrast, a fuel introduced from the fuel supply part 4 is mixed with preheating air in the flame keeping pipe 5 to start combustion and is burned in the combustion pipe 2. Simultaneously, the fuel indirectly heats and melts ash 14 in the ash melting chamber 6. Waste gas preheats the heat storage material 3 on the side B and is exhausted. Such combustion is alternately performed on the sides A and B of each burner 1.

6. 发明专利

JPS62148053A MOLDING SAND COOLING METHOD 失效
公开(公告)号：JPS62148053A
公开(公告)日：1987-07-02
申请号：JP29026385
申请日：1985-12-23
申请人： TOKYO GAS CO LTD
发明人： WATANABE KAZUFUMI , KASHIWA MASASHI
IPC分类号： B22C5/08
摘要： PURPOSE:To cool a molding sand in short time by passing an air into a treating tank and by cooling the molding sand by the cooling means with holding the molding sand inside the treating tank in a fluid state. CONSTITUTION:When a water is distributed in a piping 3 and an air is passed into a treating tank 1 from an air passing part 5, the molding sand inside the treating tank 1 becomes in a fluid state and is effectively cooled by the water flowing in the piping 3 of a cooling means 2. Namely the still air near the cooling means 2 is moved by the fluid molding sand 8 and as the result of the film being broken the heat transfer becomes larger than the ordinary convective heat transfer and the rapid cooling of the molding sand 8 is achieved.

7. 发明专利

JPS5813923B2 失效
公开(公告)号：JPS5813923B2
公开(公告)日：1983-03-16
申请号：JP15818077
申请日：1977-12-29
申请人： TOKYO GAS CO LTD
发明人： WATANABE KAZUFUMI , KAKEGAWA YASUO
IPC分类号： G05D11/02 , G05D11/00

8. 发明专利

JPS5146436A 失效
公开(公告)号：JPS5146436A
公开(公告)日：1976-04-20
申请号：JP12006974
申请日：1974-10-18
申请人： TOKYO GAS CO LTD
发明人： WATANABE KAZUFUMI , CHITOSE AKIHIRO , SASAMOTO SHINTARO , ISHIBASHI KEN
IPC分类号： F23D14/22 , F23C99/00 , F23D14/70

9. 发明专利

JPH1182923A LEAN PRE-MIXING BURNER, AND COMBUSTION METHOD OF COMBUSTION DEVICE PROVIDED THEREWITH 失效
公开(公告)号：JPH1182923A
公开(公告)日：1999-03-26
申请号：JP23473497
申请日：1997-08-29
申请人： TOKYO GAS CO LTD
发明人： WATANABE KAZUFUMI , KURIHARA TAKAYOSHI
IPC分类号： F23D14/16 , F23C99/00 , F23D14/58 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To stabilize the combustion, and to suppress generation of NOx by providing a permeable porous substance in a burner case, and burning the pre- mixture of the oxidizing agent of the prescribed times the stoichiometric ratio or move with the fuel inside the porous substance. SOLUTION: A permeable porous substance 12 is arranged in a space within a burner case 11 of a lean pre-mixing burner 10, and a space 14 is provided in an intermediate part of the porous substance 12. The pre-mixture of the oxidizing agent of 1.3 times the stoichiometric ratio or more with the fuel is introduced from a pre-mixture introducing pipe 13, and burned in the internal space 14 of the porous substance 12. The combustion is proceeded even when pores of the porous substance 12 are dense, and the porous substance 12 can achieve the stable combustion constantly exceeding the ignition temperature. Unburnt part is difficult to generate, and the stability in starting can be secured.

10. 发明专利

JPH08178227A FLAT FLAME BURNER 失效
公开(公告)号：JPH08178227A
公开(公告)日：1996-07-12
申请号：JP33676394
申请日：1994-12-26
申请人： TOKYO GAS CO LTD , KATSURA SEIKI MFG
发明人： WATANABE KAZUFUMI , ISEDA YOSHIHISA , KAWAMOTO MASAO , TSUTADA KIMIHITO
IPC分类号： F23D14/24 , F23D14/74
摘要： PURPOSE: To make it possible to burn stably without causing vibrating combustion and ignite definitely and increase a turndown ratio. CONSTITUTION: More than two rows of spray nozzles 2 and 3, which are radially laid out, are installed to the tip of a fuel pipe which sprays fuel gas in the flow direction of combustion air while a flame holder 16 is installed to the upstream of the combustion air flow. The fuel spray nozzle 3 located near the flame holder 16 is used as a fuel spray nozzle which also serves as a pilot where a minimum amount of fuel required for pilot ignition is sprayed thereto. The remaining fuel is sprayed from the other spray nozzle 2 in the other radius direction. A part 22 of the fuel sprayed from the fuel spray nozzle 2 on the downstream side flows back to the flame holder 16 and is mixed with the fuel 32 sprayed from the fuel spray nozzle 3 in the radius direction directly near the flame holder 16, thereby forming an eddy current flame holding area whose fuel concentration is high and igniting the fuel definitely on one hand. The remaining fuel 22 flows expandingly to the downstream side gradually as it is and then it is mixed with the surrounding combustion air in a turning current and burns favorably without causing vibrating combustion.

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