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公开(公告)号：US4023713A
公开(公告)日：1977-05-17
申请号：US619538
申请日：1975-10-03
申请人： Karl Brotzmann , Hans Georg Fassbinder , Paul Gerhard Mantey , Johann Claus Grapengiesser , Alfred Hansen
发明人： Karl Brotzmann , Hans Georg Fassbinder , Paul Gerhard Mantey , Johann Claus Grapengiesser , Alfred Hansen
CPC分类号： G01F11/34 , B01J8/0035 , B65G53/40
摘要： Apparatus for batchwise feeding of powders or other particulate materials from a pressurized supply vessel with a sealable discharge orifice including a movable sealing-and-metering member and a seal against which it seals during periods of non-discharge.
摘要翻译： 用于从具有可密封的排放孔口的加压供应容器中分批供给粉末或其它颗粒材料的装置，包括可移动的密封和计量构件以及在不排放期间密封的密封件。
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公开(公告)号：US3970444A
公开(公告)日：1976-07-20
申请号：US400423
申请日：1973-09-24
CPC分类号： B22D41/13
摘要： A method of casting steel at a lower overheated temperature during continuous casting, wherein the inner surface of a tundish is heated to a temperature which approximately corresponds to the temperature of the steel in a ladle, the tundish is filled with steel, and the steel is poured into at least one mold. According to the invention a discharge spout of the tundish which opens above the reference level of the metal bath, prior to casting and during heating of the tundish is brought into a position which occupies the lowest point of the inner surface of the tundish, the heating of the tundish is continued until adjusting an approximately stationary thermal gradient between the inner and the outer surfaces of the tundish, and prior to pouring of the steel into the mold the tundish is brought into its casting position.The tundish for the pouring of steel during continuous casting comprises a substantially troughlike lower portion and a domed cover member, at least one bottom nozzle provided for the tundish lower portion, said cover member being provided with an opening for the pouring in of the steel melt from a ladle, and a heating device is arranged above the reference bath level of the tundish. The tundish has a lining possessing a heat conductivity resistance of at least 0.25 m.sup.2.h. .degree.C/Kcal, and is further provided with a discharge spout partially possessing a substantially tubular-shaped cross-section and opening above the reference level of the metal bath. There is also provided means for displacing the tundish about a horizontal axis.
摘要翻译： 在连续铸造期间，在较低的过热温度下铸钢的方法，其中将中间包的内表面加热到大致对应于钢包中钢的温度的温度，中间包被钢填充，钢是 倒入至少一个模具。 根据本发明，在铸造之前和中间包的加热期间，在金属浴的参考水平面上方开口的中间包的排放口进入占据中间包内表面的最低点的位置，加热 的中间包，直到调整中间包的内表面和外表面之间的大致静止的热梯度，并且在将钢浇注到模具中之前，中间包进入其浇铸位置。
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公开(公告)号：US4047707A
公开(公告)日：1977-09-13
申请号：US694413
申请日：1976-06-09
CPC分类号： C21C5/34
摘要： An improvement in the refining of molten metals in a converter by means of oxygen introduced into the metal through tuyeres which include two concentric pipes, oxygen being passed into the melt through the central pipe and a protective fluid being passed into the melt as a sheath or screen around the oxygen, through the clearance space between the two pipes. In the present invention two tuyeres, disposed horizontally and each passing through the convertor sidewall permit refining to be accomplished without any slopping or splashing of the melt and with only minor wear of the convertor lining.
摘要翻译： 改进了转炉中的熔融金属的精炼，其中通过包括两个同心管的风嘴将金属引入金属中，氧气通过中心管道进入熔体，保护性流体作为护套进入熔体， 屏幕周围的氧气，通过两个管道之间的间隙。 在本发明中，水平设置并且各自通过转换器侧壁的两个风口允许完成精炼，而不会使熔体发生任何喷溅或飞溅，并且仅具有转子内衬的微小磨损。
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4.发明授权
公开(公告)号：US3950161A
公开(公告)日：1976-04-13
申请号：US494678
申请日：1974-08-02
CPC分类号： C21C5/04
摘要： An increase in the life of basic refractory linings in hearth type refining furnaces and a decrease in tap-to-tap time is achieved by the use of at least one refining tuyere which consists of two concentric pipes. The central pipe feeds oxygen into the melt below the bath surface, and a hydrocarbon stream surrounds the oxygen being fed into the bath, the hydrocarbon flowing in the space between the two pipes. Preferably the tuyere is embedded in the furnace backwall and is approximately horizontal and is directed toward the center of the hearth. By use of the double tuyere, oxygen can be used for refining without experiencing excessive refractory wear.
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公开(公告)号：US4798624A
公开(公告)日：1989-01-17
申请号：US23369
申请日：1987-03-09
CPC分类号： C21B13/14 , C21B13/0013 , Y02P10/122 , Y02P10/126 , Y02P10/136
摘要： A method for the melt reduction of iron ores, in which iron oxide in the liquid state is substantially reduced and the energy required for the heat balance of the process is generated by adding carbonaceous fuels to the melt and by afterburning the resulting reaction gases, mainly CO and H.sub.2. The reaction gases are afterburned successively two or more times in oxygen-containing gas jets that blow into reaction spaces which are effectively independent of each other.
摘要翻译： 铁矿石的熔融还原方法，其中液态的氧化铁被显着地降低，并且通过向熔体中加入碳质燃料并且通过再次燃烧所得到的反应气体来产生该方法的热平衡所需的能量 CO和H2。 反应气体在含氧气体射流中连续二次以上燃烧，这些气体射入反应空间，这些反应空间有效地彼此独立。
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公开(公告)号：US4171971A
公开(公告)日：1979-10-23
申请号：US884510
申请日：1978-03-08
CPC分类号： C21B11/02 , C21B5/001 , C21B5/06 , Y02P10/136 , Y02P10/265 , Y02P10/283
摘要： A method of manufacturing hot metal from iron oxide in a shaft furnace by means of reduction with CO and H.sub.2 is described in the case of which iron oxide and coke are placed in the shaft furnace. For the purpose of the coke combustion, oxygen or a gas containing oxygen is introduced together with a reduction gas having a temperature ranging from approximately 1300.degree. to 1500.degree. C., comprising for the most part CO and H.sub.2 and introduced from the hot metal zone of fusion into the furnace shaft. The flue gas of the shaft furnace is purified at least partly, whereby a backflow gas comprising for the most part CO and H.sub.2 is formed and introduced back into the shaft furnace. This method is characterized by the fact that it is especially economical.
摘要翻译： 在竖炉中放置氧化铁和焦炭的情况下，描述了通过CO和H 2还原从竖炉中的氧化铁制造热金属的方法。 为了焦炭燃烧的目的，将氧气或含氧气体与约1300℃至1500℃的还原气体一起引入，其中大部分包括CO和H 2并从热金属区域引入 融入炉轴。 至少部分净化竖炉的烟气，由此形成大部分CO和H2的回流气体并引回到竖炉中。 这种方法的特征在于它是特别经济的。
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公开(公告)号：US4062657A
公开(公告)日：1977-12-13
申请号：US684330
申请日：1976-05-07
CPC分类号： C21C5/34 , C10J3/46 , C10J3/57 , C10J3/723 , C21C5/48 , C10J2300/093 , C10J2300/0956 , C10J2300/0959 , C10J2300/0996 , C10J2300/1807
摘要： This application describes a process and apparatus for gasifying sulphur bearing coal in a molten iron bath which is covered with a sulphur absorbing slag. In order to make the process practical, the hot liquid slag is transferred to a second vessel in which it is desulfurized by contact with an oxygen containing gas, and then returned as hot liquid slag to the iron bath for reuse.
摘要翻译： 本申请描述了一种在硫磺吸收炉渣覆盖的铁水浴中气化含硫煤的方法和装置。 为了使该方法可行，将热液体渣转移到第二容器中，其中通过与含氧气体接触将其脱硫，然后作为热液体渣返回到铁浴中以供重新使用。
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公开(公告)号：US3932172A
公开(公告)日：1976-01-13
申请号：US315377
申请日：1972-12-15
IPC分类号： C21C5/34
CPC分类号： C21C5/34
摘要： Pig-iron is refined into steel by blowing oxygen and a protective screen of an encasing gas through injecting means located at or near the bottom of a converter containing a melt of molten metal. The encasing gas while protecting the injecting means, allows it to be consumed at substantially the same rate as the bottom of the converter so that the injecting means is not left projecting from the bottom of the converter. The encasing gas can be one which is inert to the melt or the metal of the injecting means or both, or it can be a gas which reacts sluggishly with the melt or the material of the oxygen feed pipe or both. Desirably, the oxygen jet is circular in cross-section and the encasing gas is in the form of a concentric jet.A converter for carrying out the method is made up of a pear-shaped sheet-steel casing having a refractory lining and an inserted bottom provided with nozzles in the form of metal tubes for the oxygen and encasing gas. Preferably, a substantial portion (for example about half) of the converter bottom is free of nozzles. The nozzles can be arranged in groups and there can be rows running parallel with the tilting axis of the converter. The nozzles may also be arranged to cause circulation of the molten metal in the converter. The nozzles can be constructed to provide for swirling movement of the encasing gas. Examples of encasing gas which may be used are hydrogen, nitrogen, noble-gases, carbon monoxide, carbon dioxide, ammonia, hydrogen-fluoride, furnace-mouth gas, coke-oven gas, natural gas and other gases containing hydrocarbons.
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公开(公告)号：US06952971B2
公开(公告)日：2005-10-11
申请号：US10362270
申请日：2001-08-22
CPC分类号： G01F1/80
摘要： The invention relates to a device for measuring a mass flow, comprising a measuring wheel (3) that is supported by a shaft (4) and that is driven and impinged axially by the mass flow. Said wheel deflects the flow, giving it both radial and tangential speed components. The shaft bears an actuation spur wheel (7), which engages with an intermediate spur wheel (8) that is held in position by a force measuring device (14) and has a second meshing with a drive spur wheel (9) that is driven by a drive motor (13). The diameter of the actuation spur wheel (7) is more than 0.3 fold, preferably 0.5 to 1 of the diameter of the measuring wheel (3). This provides a device for measuring a mass flow, which has a high zero constant and thus a high degree of measuring precision, is cost-effective to produce, robust during operation and which has none of the disadvantages of prior art.
摘要翻译： 本发明涉及一种用于测量质量流量的装置，包括由轴（4）支撑并被质量流动轴向冲击的测量轮（3）。 所述车轮偏转流动，给予径向和切向速度部件。 所述轴承有致动正齿轮（7），所述致动正齿轮（7）与通过力测量装置（14）保持在适当位置的中间正齿轮（8）接合，并且与被驱动的驱动正齿轮（9）具有第二啮合 通过驱动马达（13）。 致动正齿轮（7）的直径大于测量轮（3）的直径的0.3倍，优选为0.5至1。 这提供了一种用于测量质量流量的装置，其具有高零常数，因此具有高度的测量精度，在生产中是成本有效的，在操作期间是坚固的，并且其没有现有技术的缺点。
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10.发明授权
公开(公告)号：US4330326A
公开(公告)日：1982-05-18
申请号：US177162
申请日：1980-08-11
CPC分类号： C21C5/34 , C10J3/57 , C10J2200/152 , C10J2200/36 , C10J2300/093 , C10J2300/0943 , C10J2300/0953 , C10J2300/0959 , C10J2300/0996
摘要： A method and a means for introducing close-grained carbonaceous fuels, which are suspended in a carrier gas, and oxygen into a molten iron bath are described.In this method the fuel and the oxygen can be alternately introduced through the same introduction passage of a tuyere into a molten iron bath below the surface of the bath.The means provides for alternate supply of fuel or oxygen and is regulated by means of the oxygen line pressure.
摘要翻译： 描述了将悬浮在载气中的细粒碳质燃料和氧气引入铁水浴的方法和装置。 在这种方法中，燃料和氧气可以通过风口的相同的引入通道交替地引入到浴表面下方的铁水浴中。 该装置提供燃料或氧气的替代供应，并通过氧气管线压力进行调节。
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