• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Metal is melted in melting vessels heated in a melting furnace by combustion of fuel and by exhaust gases from the combustion. In order to prevent evaporation, overheating and contamination of the melt, the exhaust gases of the melting furnace, including unburned fuel components of the exhaust gases, are directed through a channel of limited cross-sectional size into a melting chamber of substantially larger cross-sectional size. The hot gases are directed against the surface of melting vessels in the furnace and are allowed to expand in the melting chamber to transfer heat to melting vessels there. In addition, the hot gases are retained and the unburned components are burned in the melting chamber so that their heat capacity is given off to objects within the melting chamber to be stored in those objects to achieve a high degree of utilization of the fuel.
    公开号:SU1063296A3
    申请号:SU802999791
    申请日:1980-11-03
    公开日:1983-12-23
    发明作者:Цойг Йозеф
    申请人:Йозеф Цойг (ФРГ)；
    IPC主号:
    专利说明:

    -BUT/--
    yes with yu with fig. f The invention relates to metallurgy, in particular to furnaces for melting metals and alloys. A known furnace for melting metals comprising two chambers. In the first chamber, the metal is melted, and in the second chamber, the molten metal is settled. The temperature of the metal in the second chamber is re- maintained due to the heat of the C11 waste gases. A disadvantage of the known construction is the incomplete use of the heat of the exhaust gases and the additional oxidation of the metal during settling. The closest to the technical essence of the invention is a furnace for melting metals and alloys including two chambers, a chimney of a device for kigan fuel, while chambers are connected by a gas path, and the second chamber is connected to a chimney t 2 T via a system of adjustable gates. . The disadvantage of this furnace design is the incomplete use of heat from the exhaust gases. The aim of the invention is to reduce the energy consumption during melting. . . This goal is achieved by the fact that in a furnace for melting metals and alloys, including two chambers, a chimney, a device for burning fuel, in which chambers are connected by a gas path, and the second chamber is connected to the chimney through a sigma regulator, the second saw chamber It has a cross section that is 8–12 times larger than the cross section of the gas path, AND: the melting crucibles are installed in the chamber. In this case, the gas path is made. with adjustable bore. In addition, one of the melting crucibles in the second chamber is located but along the longitudinal axis of the chamber. , FIG. 1 shows a furnace, a longitudinal section, and FIG. 2 is a section .A-A in FIG. one. . . The furnace consists of a melting chamber 1, a device 2 for burning fuel, melting crucibles 3, lids 4, combustion chamber 5, gas path b, second melting chamber 7, chimney1 pipe 8, guiding the gas flow elementchev 9, safety valve 10 gates 11 valves of the tube pipe, the second valve of the 12th pipe, holes 13 in the gas path, communicated with the environment, krshiki-14 holes, heat-accumulative elements 15, heat insulated 1 (their surfaces 16 chambers 1 and 7. The furnace works in the following way. Gases from the device burned These fuels are directed tangentially into the combustion chamber. Gases surround the crucible 8 (indicated by arrow 17 / with metal and then through the gas path with cross section F enter the second melting chamber with cross section LZ then into the chimney. To ensure a uniform, temperature field The second melting chamber in it is installed a gas flow guide element 10. To adjust the thrust in the chimney at the beginning of the chimney, as usual, there is a valve, which has a safety valve at its lower end , providing discharge of exhaust gases in the area of reduced pressure. The latch .10 serves - at the same time and in order that it is enough to slow down the movement from the worked gases and thereby to get the possibility of diverting the heat remaining in them to the environment. Valve control 10; can be carried out manually or normally by means of a drive. When the device for burning the fuel is switched off when the melt pouring temperature is reached, from the point of view of the level of thermal efficiency, it is advantageous if another valve 12 is installed in the chimney, which does not have a fuse: Noah cut, and only serves to natural waste was released into the environment. The valve 12 and the fuel combustion device 2 are mutually opposed to each other, so that the fuel combustion device can only be turned on when the valve is open. The blocking circuit is shown by the dashed line 18. In the melting chamber 7 there are tritigl, and two crucibles, when viewed in the longitudinal direction of the furnace, are mounted on both sides of its longitudinal axis, facing the valve 10, the third crucible is on the longitudinal axis. In order to obtain the desired heat transfer value for the smelting process and to prevent danger, the operating personnel working with the furnace, for example as a result of exhaust gas outflow, exhaust gas valve 10 is adjusted so that, depending on the type of combustion device, by increasing the free section Fj second the melting chamber to reduce the velocity of the exhaust gases arising from the gas tract by about 8–12 times. Due to this (in addition to starting in a cold state, absolunt combustion of supplied fuel can be ensured, and those who have reached the second melting chamber 7 have not yet burned carbon particles in this place completely burned due to accumulated heat. To equalize pressure fluctuations during cold start, the gas path for exhaust nuts is provided with an ISv passage opening whose cross section can be adjusted in a simple manner, for example by corresponding movement of the cover 14.
    In order to fully equip the cavity with a melting chamber with a radiator surface, it is not convenient to envisage it. the second melting chamber additional heat-emitting elements 19
    These are of high heat storage materials with high heat storage capacity, for example, magnesite.
    In the second smelter, hot gases are washed on all sides by crucibles with metal, thereby melting the metal into crucibles. However, by eliminating contact between the hot gases and the metal, oxidation of the metal is avoided. In this case, BQ3, it is possible to melt various grades of alloys in all crucibles.
    Along with these advantages of the device, energy from burning fuel is maximally used by creating directed and controlled flows of hot gases.
    sixteen
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    权利要求:
    Claims (3)
    [1]
    1. FURNACE FOR MELTING METALS AND ALLOYS, including two chambers, a chimney, a device for burning fuel, in which the chambers are connected by a gas path, and the second chamber is connected to the chimney through a system of adjustable gates, characterized in that, in order to reduce energy costs during melting, the second melting chamber has a cross section 8-12 times larger than the cross section of the gas path, and melting crucibles are installed in the chamber.
    [2]
    2. The furnace according to π. 1, the only reason is that the gas path is made with an adjustable hole.
    [3]
    3. The furnace according to π. 1, with the fact that one of the melting crucibles in the second chamber is located along the longitudinal axis of the chamber.
    16 1 of FIG. 1 into the combustion chamber. The gases go around the crucible 8 (shown by arrow 17) with metal and then through the gas path with a cross section F ^ enter the second melting chamber with a cross section F 2 and then into the chimney. To ensure a uniform temperature field in the second melting chamber, a gas directing element 10 is installed in it.
    To regulate the draft in the chimney, at the beginning of the chimney, a valve is provided, as usual, which has a safety clearance at its lower end that allows exhaust gas to be drawn into the low-pressure region. The valve 10 serves at the same time and in order to sufficiently slow down the movement of the 20 worked gases and thereby be able to remove the heat remaining in them into the environment. The control of the valve 10 can be carried out manually or in the usual way by means of an actuator.
    When the device for burning fuel when the temperature of the casting of the melt is turned off, from the point of view of the level of thermal efficiency is beneficial,
    30 if another chimney 12 is installed in the chimney, which does not have a safety slot, but serves solely to accumulate
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    同族专利:
    公开号 | 公开日
    DE3004906C2|1982-04-08|
    DE3004906A1|1981-08-20|
    PL228662A1|1981-09-04|
    RO82076A|1983-08-03|
    IT1150071B|1986-12-10|
    FR2475706B1|1985-01-25|
    GB2070213B|1983-10-19|
    JPS5851192B2|1983-11-15|
    RO82076B|1983-07-30|
    IT8026891D0|1980-12-23|
    US4466827A|1984-08-21|
    US4378105A|1983-03-29|
    JPS56113982A|1981-09-08|
    BE884983A|1981-03-02|
    ATA503380A|1987-03-15|
    AT384296B|1987-10-27|
    DD155433A5|1982-06-09|
    FR2475706A1|1981-08-14|
    HU178902B|1982-07-28|
    YU40780B|1986-06-30|
    GB2070213A|1981-09-03|
    PL124677B1|1983-02-28|
    CH653367A5|1985-12-31|
    YU191680A|1983-02-28|
    CS221282B2|1983-04-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1370139A|1921-03-01|John tjbban mcdowald |
    US515261A|1894-02-20|Liquid-fuel furnace |
    US1192946A|1915-08-28|1916-08-01|Juan N Silva|Kiln.|
    US1454358A|1922-06-12|1923-05-08|Weeks Leroy|System of kilns|
    GB220837A|1923-10-03|1924-08-28|Bellis Heat Treating Company|An improved method of heat treating metals and furnace therefor|
    DE444535C|1926-02-05|1927-05-24|Martin Gramss|Crucible furnace with premelter|
    GB266923A|1926-04-06|1927-03-10|Alfred Smallwood|Improvements in or relating to furnaces|
    US2656171A|1947-05-13|1953-10-20|George E Markley|Furnace for heating crucibles and the like|
    US2681854A|1951-12-11|1954-06-22|Kautz Karl|Method and apparatus for smelting hydrogen-reducible ores|
    DE935332C|1953-05-24|1955-11-17|Ver Deutsche Metallwerke Ag|Device for drying and preheating the input material for melting furnaces, preferably rotary drum furnaces|
    FR1121161A|1955-02-07|1956-07-24|Fond Montupet Montupet|Improvements made to double furnaces, in particular for metallurgy|
    NL286791A|1961-12-18|1900-01-01|
    DE1210132B|1962-08-24|1966-02-03|Westofen G M B H|Crucible furnace for melting non-ferrous metals|US6074205A|1997-10-17|2000-06-13|South African Bureau Of Standards|Determination of volatile matter in samples|
    US5980818A|1998-07-08|1999-11-09|Valiant Machine & Tool Inc.|Melt tank assembly|
    US7328799B2|2003-07-24|2008-02-12|Rubbermaid Incorporated|Task trays|
    US8246715B2|2010-05-26|2012-08-21|Thut Bruno H|Adjustable vortexer apparatus|
    CN102914155A|2012-11-15|2013-02-06|天津口岸检测分析开发服务有限公司|Sample melting furnace|
    CN106766971B|2017-03-14|2018-03-20|永兴县东宸有色金属再生利用有限公司|The oxygen-enriched side-blowing intensified smelting stove of leaded secondary material can be handled|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19803004906|DE3004906C2|1980-02-09|1980-02-09|Melting furnace for metals and metal alloys with a thermally insulated chamber connected via an exhaust gas duct and a method for melting|
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