ASPHALT DRUM MIXER WITH SCOOP-LIKE MIXING TIPS
    22.
    发明公开
    ASPHALT DRUM MIXER WITH SCOOP-LIKE MIXING TIPS 失效
    勺形混合元件沥青搅拌桶

    公开(公告)号:EP0730518A4

    公开(公告)日:1997-06-18

    申请号:EP95901748

    申请日:1994-11-01

    Applicant: ASTEC IND

    Inventor: MILSTEAD JOHN

    Abstract: An asphalt drum mixer (10) includes a rotating drum (12) within a fixed sleeve (32) which defines an annular chamber (34), and mixing tips (50, 58) mounted on the drum and in the annular chamber. The mixing tips (50, 58) pass through the hot mix asphalt laying in the bottom of the annular chamber (34) and mix and shear the hot mix asphalt and increase its residence time in the drum mixer (10). In one embodiment, the mixing tips may comprise curved scoop-like elements (50) which lift the hot mix asphalt higher than conventional paddles and greatly increase residence time of the mix in the drum (12) over conventional paddles. The quality of the mix is thus greatly improved. In another embodiment the mixing tips may comprise curved scoop-like elements (58) having slots (64) which greatly increase sheering of the hot mix asphalt, thereby further improving the quality of the mix.

    Gas-liquid contacting apparatus
    23.
    发明公开
    Gas-liquid contacting apparatus 失效
    气液接触装置

    公开(公告)号:EP0407180A3

    公开(公告)日:1992-05-20

    申请号:EP90307336.9

    申请日:1990-07-05

    Abstract: The efficiency of a gas-liquid contacting process is greatly improved with stability by using a gas-liquid contacting apparatus which comprises: (A) a vessel for holding a liquid; and (B) a gas sparger unit immersed in the liquid comprising (a) a gas inlet tube; (b) a gas sparger box, the upper surface of which is provided with perforations through which the gas is bubbled, communicating with the gas inlet tube; and (c) a liquid-seal tube connected to the lower portion of the gas sparger box and extending downwardly and opening at the lower end. Two or more of the gas sparger boxes can be provided each communicating with the gas inlet tube through a manifold. Preferably, the gas sparger box or boxes are open upwardly and the open upper end is covered with a perforated rubber plate. This gas-liquid contacting apparatus is particularly useful in processes in which a large volume of a solid material is formed by a gas-liquid contacting reaction as in the production of precipitated calcium carbonate by the carbonation of milk of lime.

    Mixing apparatus and methods of fabricating same
    25.
    发明公开
    Mixing apparatus and methods of fabricating same 失效
    Mischvorrichtung und Verfahren zu ihrer Herstellung。

    公开(公告)号:EP0284929A1

    公开(公告)日:1988-10-05

    申请号:EP88104388.9

    申请日:1988-03-18

    Abstract: A mixer which provides axial flow in a non-uniform flow field, such as may be established by gas which is sparged into a medium being mixed in a tank, and provides large axial flow volume without flooding and withstands variable loads on the blades thereof, thereby providing for reliable operation. The mixer impeller is made up of paddle shaped blades, which near their tips (e.g., at 90% of the radius of the impeller from its axis of rotation) are of a width at least 40% of the impeller's diameter. The blades also having camber and twist. They are formed by establishing bending moments which form the blades into sections which are curved and flat, with the flat sections being at least in the center area of the base of the blades. The hub for attaching the blades to the shaft of the mixer has radially extending arms with flat surfaces. The base of the blades are spaced from the shaft to define areas therebetween. These areas are reduced in size, thereby limiting the passage of sparging gas between the blades and the shaft and the strength of the coupling between the blades and the shaft are enhanced by backing plates of width greater than the width of the arms. These backing plates are fastened between the arms and the flat sections of the blades. Bolts extending through aligned holes in the arms, backing plates and blades provide strong and secure attachment of the impeller blades to the shaft so that the impeller will operate reliably in the environment which provides variable loads on the blade.

    Abstract translation: 提供在非均匀流场中的轴向流动的混合器,例如可以通过喷射到在罐中混合的介质中的气体来建立,并且在没有溢流的情况下提供大的轴向流量并且承受其叶片上的可变负载, 从而提供可靠的操作。 混合器叶轮由桨形叶片组成,其叶片在其顶端附近(例如,叶轮半径从其旋转轴线的90%处)的宽度至少为叶轮直径的40%。 叶片也有弯曲和扭曲。 它们通过将形成叶片的弯矩建立成弯曲和平坦的部分形成,平坦部分至少在叶片的基部的中心区域中。 用于将叶片附接到混合器的轴的毂具有具有平坦表面的径向延伸的臂。 叶片的基部与轴间隔开以限定它们之间的区域。 这些区域的尺寸减小,从而限制喷射气体在叶片和轴之间的通过,并且叶片和轴之间的联接的强度通过宽度大于臂的宽度的背板增强。 这些背板被固定在臂和刀片的平坦部分之间。 延伸穿过臂,背板和叶片中的对准孔的螺栓提供了将叶轮叶片与轴的牢固和牢固的连接,使叶轮在可在叶片上提供可变载荷的环境中可靠地运行。

    A process for producing vinyl chloride resin
    26.
    发明公开
    A process for producing vinyl chloride resin 失效
    一种制备氯乙烯聚合物的方法。

    公开(公告)号:EP0187676A2

    公开(公告)日:1986-07-16

    申请号:EP86100285.5

    申请日:1986-01-10

    Abstract: @ The present invention provides a process for producing vinyl chloride resin in suspension polymerization of vinyl chloride monomer by the user of a polymerization reaction equipped with a reflux condenser using an improved brumagine-type impeller equipped with auxiliary blade/s, and polymerization is started in a range of 0.8 to 1.0 of the water/monomer ratio, polymerization temperature is raised 3 to 10°C at polymer conversion being not more than 50 weight percent, with water being added in the course of polymerization not more than making up for the volumetrical contraction resulting from the progress of polymerization so that upon completion of polymerization the water/monomer ratio is controlled in a range of 1.0 to 1.4. The polyvinyl chloride resin obtained by the present process is superior in quality such as high bulk density and little fish eye with high productivity.

    Stirring device for fermenting receptacles of grape mash
    27.
    发明公开
    Stirring device for fermenting receptacles of grape mash 失效
    用于发酵葡萄ma容器的搅拌装置

    公开(公告)号:EP0052298A3

    公开(公告)日:1983-04-06

    申请号:EP81109446

    申请日:1981-10-30

    Inventor: Rieger, Herbert

    CPC classification number: B01F7/00158 C12G1/02 C12G2200/25

    Abstract: Ein Rührwerk für Traubenmaische, das eine umlaufende Welle und blattförmige Mischflügel aufweist, die mindestens einen in einem Winkel shräg gegen die Umlaufrichtung angestellten ersten Abschnitt aufweisen, ist dadurch gekenn zeichnet, daß sich an den ersten Abschnitt (19, 23) in mindestens einer Umlaufrichtung gesehen ein zweiter in gleicher Richtung angestellter Flügelabschnitt (20, 21, 25, 26, 50, 51) anschließt, dessen Anstellwinkel kleiner als der des ersten Abschnitts ist.

    Abstract translation: 对于葡萄醪搅拌器,包括旋转轴和叶片形混合叶片,其在对使用第一部分的旋转方向的角度的至少一个shräg,其特征在于邻接在旋转中的至少一个方向上看到的第一部(19,23) (20,21,25,26,50,51)相同方向上的第二部分连接,迎角小于第一部分的迎角。

    Conteneur-citerne dont la cuve renferme un mélangeur
    28.
    发明公开
    Conteneur-citerne dont la cuve renferme un mélangeur 失效
    TrommelförmigerBehälter,enthaltend einRührwerk。

    公开(公告)号:EP0045235A1

    公开(公告)日:1982-02-03

    申请号:EP81401105.2

    申请日:1981-07-08

    Inventor: Bruas, Michel

    Abstract: Le conteneur-citerne selon l'invention comporte un mélangeur comprenant des pales (12) dont le bord activ (13) est adjacent à la face interne de la paroi latérale (4) de la cuve, ces palés étant fixées à l'extrémité libre de bras (14) montés radialement sur un arbre moteur (15) situé sur l'axe longitudinal de la cuve (3) et monté à rotation sur les parois terminales (5, 6) de celle-ci.
    Transport et stockage de produits visqueux tels que de la pâte de cacao.

    Abstract translation: 混合器具有其主动边缘(13)与容器的侧壁(4)的内表面相邻的叶片(12),这些叶片附接到径向安装在驱动轴上的自由端臂(14) 15),其位于容器(3)的纵向轴线上并且装配成在后者的端壁(5,6)上旋转。 运输和储存粘性产品如可可酱。

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