公开(公告)号：US3993477A

公开(公告)日：1976-11-23

申请号：US516610

申请日：1974-10-21

申请人： Paul D. Hess ,  Robert E. Spear

发明人： Paul D. Hess ,  Robert E. Spear

IPC分类号： C22C1/02

CPC分类号： C22C1/026

摘要： Our invention relates to the feeding of sodium to aluminum containing silicon as an alloying element in hypoeutectic percentages by flowing the molten aluminum through a trough and feeding a tube which contains sodium within it into the aluminum in the trough, the tube being preferably fed in countercurrent direction with special mixing and a protective surface coating for the flowing molten aluminum. The invention appears primarily applicable to casting large masses of aluminum such as are used in the melts which produce aluminum ingots for sale to foundries.

摘要翻译： 本发明涉及通过使熔融铝流过槽并将其中含有钠的管送入槽内的铝，将钠转化为含铝的合金元素作为合金元素，该管优选以逆流方式进料 方向具有特殊的混合和用于流动的熔融铝的保护性表面涂层。 本发明主要适用于铸造大量的铝，例如用于生产铝锭的熔体中用于出售给铸造厂的铝。

公开(公告)号：US4270900A

公开(公告)日：1981-06-02

申请号：US110255

申请日：1980-01-07

申请人： James L. Shy ,  Paul D. Hess

发明人： James L. Shy ,  Paul D. Hess

IPC分类号： F27B7/20 ,  F27B15/00 ,  F27B7/02

CPC分类号： F27B7/2033

摘要： A suspension preheater adapted to be connected to the feed end housing of a rotary kiln or the like, whereby kiln exhaust gas emerging from the feed end housing passes through the preheater in countercurrent heat exchange relation with particulate feed material for the kiln which passes through the preheater from a feed inlet end contiguous the upper end of the preheater to a feed discharge end at the lower end of the preheater, comprising one or more cyclone means arranged in series gas and particulate feed material flow relation with respect to each other, means for admitting the particulate feed material from a feed material supply source to the upper portion of the preheater, a hollow preheating chamber at the lower portion of the suspension preheater, the hollow preheating chamber having the upper end thereof in gas and material flow communication with the upper end of the lowermost of the cyclone means, the lower end of the hollow preheating chamber being in gaseous flow communication with the feed end housing of the rotary kiln, a first particulate material delivery pipe connecting the lower portion of the lowermost cyclone means to the interior of the hollow preheating chamber intermediate the height of the preheating chamber, and a second particulate material delivery pipe connecting the lower portion of the lowermost cyclone means directly to the interior of the feed end housing of the kiln.

摘要翻译： 一种悬挂预热器，其适于连接到回转窑等的进料端壳体，由此从进料端壳体排出的窑尾废气以与窑的颗粒进料相反的热交换关系通过预热器， 从与预热器的上端相邻的进料入口端的预热器到预热器的下端处的进料排出端，包括一个或多个沿着彼此串联的气体和颗粒进料流动关系的旋风装置， 将进料材料从进料材料供应源进入预热器的上部，在悬浮预热器下部的中空预热室，空心预热室的上端为气体，物料与上部 旋流器装置的最下面的端部，空气预热室的下端处于气流中 与回转窑的进料端壳体连接，第一颗粒材料输送管将最下旋风装置的下部连接到在预热室的高度之间的中空预热室的内部;以及第二颗粒材料输送管，其连接 最低旋风分离器的下部直接指向窑的进料端壳体的内部。

公开(公告)号：US4372784A

公开(公告)日：1983-02-08

申请号：US295218

申请日：1981-08-21

申请人： Paul D. Hess

发明人： Paul D. Hess

IPC分类号： C04B7/43 ,  F27B7/20 ,  C04B7/02 ,  F27B7/02 ,  F27B15/00

CPC分类号： C04B7/434 ,  F27B7/2033

摘要： A calcining combustor for the suspension preheater of a rotary kiln cement manufacturing plant having a cooler for the clinker comprises an upright furnace vessel having an outwardly spiraling gas exhaust duct at its upper end leading to a preheater gas/meal separator and a mixing portion at its lower end; an inlet for hot combustion air from the cooler into the mixing portion; an inlet for cement meal from the preheater into the mixing portion downstream from the combustion air inlet to entrain the meal in the rising combustion air; and burners for injecting fuel into the air/meal stream downstream from the meal inlet to calcine the meal by heat released by burning of the fuel with the combustion air. The initial calcination temperature is a minimum because the combustion air atmosphere within the combustor is devoid of significant amounts of carbon dioxide and chlorine and alkali vapors typically present in kiln-off gases, and the endothermic calcination reaction absorbs heat energy to limit temperature rise within the combustor so that caking and formation of alkali and nitrogen oxide vapors is minimized. An alternative embodiment has an inlet for hot kiln-off gases into the furnace vessel at a point where substantial calcination has occurred so that both (a) calcining and (b) mixing of the calcined meal/air stream with the kiln-off gases to transfer heat energy thereto occur in a single vessel.

摘要翻译： 用于具有用于熟料的冷却器的回转窑水泥制造厂的悬浮预热器的煅烧燃烧器包括立式炉容器，其在其上端具有向外螺旋形的排气管道，其通向预热器气体/粉碎分离器和混合部分 下端 用于从冷却器到混合部分的热燃烧空气的入口; 来自预热器的水泥粉的入口进入燃烧空气入口下游的混合部分，以在上升的燃烧空气中夹带餐; 以及用于将燃料喷射到进餐口下游的空气/膳食流中的燃烧器，以通过用助燃空气燃烧燃料而释放的热量来煅烧餐。 初始煅烧温度是最小的，因为燃烧器内的燃烧空气气氛中没有大量的二氧化碳，典型地存在于窑式气体中的氯和碱蒸汽，吸热煅烧反应吸收热能来限制温度升高 从而使碱和氮氧化物蒸气的结块和形成最小化。 替代实施例具有用于在已经发生实质的煅烧的点处将热的窑炉气体进入炉膛的入口，以便（a）煅烧和（b）将煅烧的粕/空气流与窑炉气体混合到 将热能转移到单个容器中。

公开(公告)号：US4326845A

公开(公告)日：1982-04-27

申请号：US222035

申请日：1981-01-02

申请人： Paul D. Hess

发明人： Paul D. Hess

IPC分类号： F27B7/20 ,  F27B7/02 ,  F27B15/00

CPC分类号： F27B7/2033

摘要： A multi-stage cement calcining plant suspension preheater has a calcining combustor flow connected with a cyclone separator in the uppermost stage and helical duct inertial separators in the remaining stages which are lower in height and in pressure drop than conventional cyclone separators and permit reduction in height of the preheater tower and use of a lower horsepower fan to move kiln-off gases through the preheater.

摘要翻译： 多阶段水泥煅烧厂悬浮预热器具有与最高阶段的旋风分离器连接的煅烧燃烧器流和其余级中的螺旋管惯性分离器，其高度和压降低于常规旋风分离器，并允许降低高度 的预热塔和使用较低功率的风扇通过预热器移动窑废气。

公开(公告)号：US4318692A

公开(公告)日：1982-03-09

申请号：US222034

申请日：1981-01-02

申请人： Paul D. Hess

发明人： Paul D. Hess

IPC分类号： F27B7/20 ,  F27B15/00 ,  F27B7/02

CPC分类号： F27B7/2033

摘要： A helical duct separator particularly suited for use in the suspension preheater of a cement calcining plant to separate raw cement meal from kiln-off gases in which the meal is suspended comprises a hollow elongated continuous duct having its longitudinal axis disposed along a downwardly inclined helical path, an inlet opening in a vertical plane for receiving a horizontal stream of gas with entrained meal, a downwardly inclined upper wall and a concave outer sidewall in the path of the gas stream to deflect the gas stream into a downwardly inclined helical path, a horizontal bottom wall adjacent the outlet end of the duct, a meal exit opening in the bottom wall and a gas exhaust opening in a horizontal plane in the upper wall adjacent the outlet end of the duct. The gas stream so directed in a downwardly inclined helical path impinges on the horizontal bottom wall and is deflected upward and drawn upward by suction from an induced draft fan toward the gas exhaust opening while the heavier meal is precipitated from the gas stream and urged by centrifugal and inertial forces to flow along the bottom wall and through the meal exit opening. The helical duct separator is substantially shorter in height, and has a substantially lower pressure drop, than a cyclone separator, thereby permitting reduction in the height of, and the energy required to operate, a suspension preheater in comparison to one of the cyclone separator type.

摘要翻译： 特别适合用于水泥煅烧设备的悬浮预热器的螺旋管道分离器，用于将原料水泥粉与其中悬浮的窑炉气体分离，包括中空细长连续管道，其纵向轴线沿着向下倾斜的螺旋路径 在垂直平面中的入口开口，用于接收具有夹带餐的水平气流，在气流的路径中的向下倾斜的上壁和凹入的外侧壁，以将气流偏转成向下倾斜的螺旋路径，水平 靠近管道的出口端的底壁，底壁中的出口开口和邻近管道出口端的上壁中的水平面中的排气口。 如此引导在向下倾斜的螺旋路径中的气流撞击在水平底壁上并且向上偏转并且通过从引风机的抽吸向气体排出口向上拉动，同时较重的餐从气流中沉淀并通过离心 和惯性力沿着底壁流过膳食出口。 与旋风分离器类型相比，螺旋管道分离器的高度基本上比旋风分离器短，并且具有比旋风分离器基本上更低的压降，从而允许降低悬架预热器的高度和所需的能量。 。