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288 条记录 (耗时 0.016 秒)

    Method and apparatus for heating a furnace chamber
    31.
    发明授权
    Method and apparatus for heating a furnace chamber 失效
    用于加热炉室的方法和设备

    公开(公告)号：US4181491A

    公开(公告)日：1980-01-01

    申请号：US870329

    申请日：1978-01-18

    申请人： James E. Hovis

    发明人： James E. Hovis

    IPC分类号： F23D14/20 ,  F27D7/00 ,  F23D13/12

    CPC分类号： F23D14/20 ,  F27D7/00

    摘要： The method for heating the furnace chamber produces high momentum levels during the heat treating cycle so as to obtain substantially uniform temperature throughout the charge. The method includes initially firing a plurality of high velocity burners at substantially maximum fuel input and in substantially stoichiometric ratio. Thereafter, the fuel input is reduced while maintaining the stoichiometric ratio at least during the high input portion of the cycle. Excess air is introduced external of the combustion zones of the burners on a predetermined signal such as a given fuel input reduction to maintain the desired momentum level within the furnace. The apparatus comprises a high velocity burner having associated therewith an excess air unit for discharging excess air external of the combustion chamber or port block of the burner. The excess air unit can be integral with the burner so as to supply excess air through the burner port block or a separate unit can be provided which is connectable to the burner and about the port block which defines the combustion chamber.

    摘要翻译： 用于加热炉室的方法在热处理循环期间产生高动量水平，以便在整个充电期间获得基本均匀的温度。 该方法包括最初以基本上最大的燃料输入和基本上化学计量比来燃烧多个高速燃烧器。 此后，燃料输入减少，同时至少在循环的高输入部分期间保持化学计量比。 过多的空气在燃烧器的燃烧区域的外部被引入诸如给定的燃料输入减少的预定信号，以保持炉内所需的动量水平。 该装置包括高速燃烧器，其具有与其相关联的过量空气单元，用于排出燃烧室的燃烧室或端口块外部的多余的空气。 多余的空气单元可以与燃烧器成一体，以便通过燃烧器端口块供应多余的空气，或者可以提供可连接到燃烧器和限定燃烧室的端口块的单独的单元。

    Method and apparatus for feeding an oxidant within a furnace enclosure
    32.
    发明授权
    Method and apparatus for feeding an oxidant within a furnace enclosure 失效
    在炉壳内供给氧化剂的方法和装置

    公开(公告)号：US4149939A

    公开(公告)日：1979-04-17

    申请号：US821161

    申请日：1977-08-02

    申请人： William E. Solano

    发明人： William E. Solano

    IPC分类号： C10B7/00 ,  F27D7/00 ,  C10B1/10 ,  C10B57/00 ,  F27B9/04 ,  F27D7/06

    CPC分类号： C10B7/00 ,  F27D7/00

    摘要： Method and apparatus for feeding an oxidant such as air and/or a fuel rich gas within the confines of a substantially air tight enclosure employed in the heat treatment of volatile containing materials which are deposited on the floor of a rotary hearth mounted within the enclosure. A larger number of air and/or fuel rich gas inlet ports are provided in the roof of the enclosure at the outer periphery thereof than at the central or intermediate areas of the enclosure to thus provide a more oxidizing atmosphere at the outer peripheral area of the enclosure than at the central and intermediate areas of the enclosure. The oxidant is admitted into the furnace enclosure through concentrically arranged rows of inlet openings formed in the roof of the enclosure. The oxidant mixes in the upper portion of the enclosure with the volatiles evolved from the materials and combusts therewith and following combustion of the said oxidant and released volatiles the waste gases of combustion are caused to travel radially outwardly to a peripherally mounted exhaust manifold whereas the materials undergoing heat treatment on the hearth are gradually advanced from the point of entry thereof to a centrally located discharge outlet. Means are provided in the exhaust manifold to cause said oxidant and waste gases of combustion to travel in a line of direction outwardly of the enclosure and into the said exhaust manifold. Thus, the direction of flow of the oxidant and waste gases of combustion within the enclosure is counter-current to the direction of travel of the materials undergoing treatment on the hearth.

    摘要翻译： 用于将空气和/或富燃料气体的氧化剂进料的方法和装置，所述氧化剂在基本上不透气的外壳的范围内，所述外壳用于热处理包含在外壳内的旋转炉床的地板上的挥发性物质的热处理。 在外壳的外壳的顶部设置有大量空气和/或富燃料气体入口，而不是在外壳的中央或中间区域，从而在外壳的外围区域提供更多的氧化气氛 外壳比外壳的中央和中间区域。 氧化剂通过形成在外壳顶部的同心排列的入口开口进入炉壳体。 氧化剂在外壳的上部与由材料放出的挥发物混合并与其燃烧并在燃烧所述氧化剂和释放的挥发物之后使燃烧的废气径向向外行进到外围安装的排气歧管，而材料 在炉膛上进行热处理从进入点逐渐前进到位于中心的排出口。 装置设置在排气歧管中，以使燃烧的氧化剂和废气沿外壳的外侧的方向行进到所述排气歧管中。 因此，外壳内的氧化剂和燃烧废气的流动方向与正在炉膛上进行处理的材料的行进方向相反。

    Method and apparatus for drying and preheating small metallic particles
    33.
    发明授权
    Method and apparatus for drying and preheating small metallic particles 失效
    用于干燥和预热小金属颗粒的方法和装置

    公开(公告)号：US4133635A

    公开(公告)日：1979-01-09

    申请号：US766489

    申请日：1977-02-07

    申请人： John R. Fellnor ,  William J. Love, Jr.

    发明人： John R. Fellnor ,  William J. Love, Jr.

    IPC分类号： B22F8/00 ,  C22B1/00 ,  C22B1/248 ,  F27D7/00

    CPC分类号： C22B1/248 ,  B22F8/00 ,  C22B1/005 ,  Y02P10/24 ,  Y02W30/541

    摘要： A system for drying and preheating small metallic particles such as chips, turnings, borings and the like to remove volatiles therefrom which includes a dryer working in conjunction with a briquetting press. The dryer includes a drying and preliminary combustion chamber including a revolving drum therein through which the chips pass. The drying and preliminary combustion is heated and is atmospherically sealed and operated with a reducing atmosphere. The volatiles driven from the metallic particles are passed to a combustion completion chamber which is maintained at a temperature sufficient to burn the combustibles and into which air is injected to complete the combustion. The hot metallic particles are thermally insulated and sealed from the atmosphere while being conveyed from the drying and preliminary combustion chamber to the briquetting press where they are compressed into briquettes for subsequent introduction into induction furnaces and the like.

    摘要翻译： 一种用于干燥和预热小金属颗粒如碎屑，turn屑，钻孔等的系统，用于除去其中的挥发物，其包括与压块机一起工作的干燥机。 干燥机包括干燥预备燃烧室，其中包括一个转盘，芯片通过该转鼓。 干燥和预燃烧被加热并且被大气密封并且在还原气氛下操作。 从金属颗粒驱动的挥发物被传送到燃烧完成室，该燃烧完成室保持在足以燃烧可燃物的温度，并注入空气以完成燃烧。 热的金属颗粒在从干燥和预燃烧室输送到压块压块的同时，与大气隔绝并密封，在压块机中将它们压缩成压块，随后引入感应炉等。

    Burner systems for ovens and methods of operating such systems
    35.
    发明授权
    Burner systems for ovens and methods of operating such systems 失效
    用于烤箱的燃烧器系统和操作这种系统的方法

    公开(公告)号：US3969069A

    公开(公告)日：1976-07-13

    申请号：US459687

    申请日：1974-04-10

    申请人： Rudiger Knaak

    发明人： Rudiger Knaak

    IPC分类号： F23N5/22 ,  C21D1/52 ,  C21D11/00 ,  F23N5/20 ,  F27B3/20 ,  F27D7/00 ,  F27B9/14

    CPC分类号： F27D7/00

    摘要： Burners of an oven are operated to satisfy heat loads changeable between a high load and substantially smaller loads. At least under the smaller loads the burners are cyclically controlled in a cycle of time periods T-1 and T-2. During the periods T-1 the burners are steadily regulated to maintain a uniform temperature in the oven. For periods T-2 the burners are periodically controlled to admit one of two selected magnitudes of fuel flow to the oven. At least under the smallest loads the latter magnitudes are periodically controlled to be zero or close to zero.

    摘要翻译： 操作烤箱的燃烧器以满足在高负载和相当小的负载之间可变的热负荷。 至少在较小的载荷下，燃烧器在时间段T-1和T-2的循环中循环控制。 在T-1期间，燃烧器稳定地调节以保持烘箱中均匀的温度。 对于期间T-2，燃烧器被周期性地控制以允许将两个选定数量的燃料流中的一个引入烘箱。 至少在最小负载下，后一个量值周期性地控制为零或接近于零。

    Thermal treatment of granular or lumpy material, particularly firing lime, dolomite, magnesite or the like and furnace therefor
    36.
    发明授权
    Thermal treatment of granular or lumpy material, particularly firing lime, dolomite, magnesite or the like and furnace therefor 失效
    颗粒状或块状材料，特别是煅烧石灰，白云石，菱镁矿等的热处理和炉

    公开(公告)号：US3941557A

    公开(公告)日：1976-03-02

    申请号：US536932

    申请日：1974-12-23

    申请人： Heinrich Buchner

    发明人： Heinrich Buchner

    IPC分类号： C04B2/12 ,  F27B1/08 ,  F27B15/18 ,  F27D7/00

    CPC分类号： C04B2/12 ,  F27B1/08

    摘要： A calcining method and apparatus are provided wherein material to be treated is fed into the top of the furnace and the finished material discharges from the bottom of the furnace and cooling and combustion air enters under forced draft through the bottom of the furnace and flows upwardly through the column of material. A part of the fuel supply is delivered to the region between an upper preheating zone in the furnace and a subjacent combustion or firing zone and the balance of fuel required for firing is introduced into the combustion zone about its periphery. Provision is also made for bypassing part of the cooling air from a lower cooling zone to the combustion zone, with intermediate cleaning of the bypassed air.

    摘要翻译： 提供了一种煅烧方法和装置，其中待处理的材料被进料到炉的顶部，并且成品材料从炉底排出，并且冷却和燃烧空气在强制通风下进入炉底，并向上流过 材料栏。 燃料供应的一部分被输送到炉内的上部预热区域和下面的燃烧或燃烧区域之间的区域，并且燃烧所需的燃料余量被引入燃烧区域周围。 还设置了将一部分冷却空气从下部冷却区旁路到燃烧区，同时对旁路空气进行中间清洁。

    Cupolas
    38.
    发明授权
    Cupolas 失效
    CUPOLAS

    公开(公告)号：US3659832A

    公开(公告)日：1972-05-02

    申请号：US3659832D

    申请日：1969-10-22

    申请人： MIFUJI IRON WORKS CO LTD

    发明人： TAKAHASHI AKIRA ,  ARATA AKIMASA ,  OKAWARA YOSHIMI

    IPC分类号： F27B1/00 ,  F27D7/00

    CPC分类号： F27B1/00

    摘要： Combustion gases are generated in the liquid fuel combustion chambers provided on the middle shell of a cupola and blasted on the red-hot coke which is supplied automatically below said combustion chambers, to generate gas mixtures consisting of CO, H2 and N2 by water gas reaction and reducing reaction. These gas mixtures can be used as useful heat sources. By this process, the steam which has been so far regarded as a taboo in cupola operations can advantageously be utilized as hot gas so that cast iron of superior quality may be produced with better yields.

    摘要翻译： 在设置在冲天炉中壳上的液体燃料燃烧室中产生燃烧气体，并在自动下降到所述燃烧室下的红热焦炭上喷射，以通过水气反应产生由CO，H 2和N 2组成的气体混合物 并减少反应。 这些气体混合物可以用作有用的热源。 通过该方法，迄今被认为是冲天炉操作中的禁忌的蒸汽可以有利地用作热气体，从而可以以更好的产率生产出优质的铸铁。