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    • 1. 发明申请
    • ELIMINATION OF SHRINKAGE CAVITY IN CAST INGOTS
    • 消除。OF OF。。。。。。。
    • WO2012083452A1
    • 2012-06-28
    • PCT/CA2011/050790
    • 2011-12-21
    • NOVELIS INC.ANDERSON, MarkBISCHOFF, Todd F.BOORMAN, JamesFENTON, Wayne J.SINDEN, DavidTINGEY, John StevenWAGSTAFF, Robert Bruce
    • ANDERSON, MarkBISCHOFF, Todd F.BOORMAN, JamesFENTON, Wayne J.SINDEN, DavidTINGEY, John StevenWAGSTAFF, Robert Bruce
    • B22D7/12B22D15/04
    • B22D11/049B22D11/10B22D11/18B22D11/185B22D11/186B22D19/10B22D41/18
    • An exemplary embodiment provides a method of fully or partially eliminating a shrinkage cavity in a metal ingot cast by direct chill casting. The method involves casting a metal ingot by introducing molten metal into a direct chill casting mold from a spout to form an upright ingot having an upper surface at a predetermined height. Upon completion of the casting, the lower tip of the spout is preferably maintained below the upper surface in molten metal at or near a center of the upper surface of the ingot. The metal flow through the spout is terminated while maintaining sufficient heat in metal within and supplying the spout to keep the metal molten for subsequent delivery through the spout. A partial shrinkage cavity is allowed to form in the upper surface of the ingot as metal of the ingot shrinks and contracts. Preferably before the partial cavity exposes the lower tip of the spout, the partial shrinkage cavity is preferably over‐filled with molten metal, while all or significant spillage of molten metal from the partial cavity is avoided, and then the flow of metal through the spout is terminated. The steps of allowing a partial shrinkage cavity to form in the upper surface and then preferably over‐filling the partial shrinkage cavity with molten metal from the spout before the cavity exposes the lower tip is repeated, preferably until no further contraction of the metal of the ingot causes any part of the upper surface to contract below the predetermined height. The spout is then removed from contact with molten metal of the ingot and all parts of the ingot are allowed to cool to a temperature at which the metal is fully solid.
    • 一个示例性实施例提供了一种通过直接冷却铸造完全或部分地消除金属锭铸件中的收缩腔的方法。 该方法包括通过从喷口将熔融金属引入直接冷却铸造模具中来铸造金属锭,以形成具有预定高度的上表面的立式铸锭。 在铸件完成时,喷嘴的下端优选地保持在熔池中的上表面处于锭的上表面的中心处或附近。 通过喷口的金属流动被终止,同时在金属内保持足够的热量并且供应喷口以保持金属熔融以便随后通过喷口输送。 当锭的金属收缩并收缩时,允许在锭的上表面形成部分收缩腔。 优选地,在部分空腔暴露出口的下端之前,部分收缩腔优选地被熔融金属过度填充,同时避免了来自部分腔的熔融金属的全部或大量溢出,然后金属流过喷口 被终止。 重复在空腔暴露下端之前允许在上表面形成部分收缩腔并且然后优选地从熔喷金属从熔融金属过度填充部分收缩腔的步骤,优选地直到不再进一步收缩 锭子使上表面的任何部分收缩到预定高度以下。 然后将喷口与铸锭的熔融金属接触脱除,并使锭的所有部分冷却至金属完全固体的温度。
    • 2. 发明申请
    • SYSTEMS AND PROCESSES FOR IMPROVING DISTILLATE YIELD AND QUALITY
    • 改善蒸发量和质量的系统和方法
    • WO2011115678A1
    • 2011-09-22
    • PCT/US2011/000488
    • 2011-03-17
    • THIOSOLV, L.L.C.ANDERSON, Mark, C.WINTER, George, R.
    • ANDERSON, Mark, C.WINTER, George, R.
    • C10G21/00C10G21/02
    • C10G7/08B01D3/32B01D3/42C10G7/12
    • Systems and processes for improving quality and yield of one or more distillate products generated in a distillation column are disclosed. The system comprises a feed inlet distributor that reduces the amount of liquid entrained in vapor rising from the feed zone of the distillation column, a wash zone collection apparatus having an improved design for collecting slop wax falling from a liquid/vapor contacting structure provided in the wash zone, a recirculation subsystem for recirculating at least a portion of the collected slop wax to the top of the wash zone for distribution as wash oil, and a control subsystem. The feed inlet distributor ensures a horizontal fluid flow path free of transverse surfaces thereby minimizing atomization of liquid droplets entrained in vapor in the feed stream.
    • 公开了一种用于提高在蒸馏塔中产生的一种或多种馏出物的质量和产率的系统和方法。 该系统包括进料口分配器,其减少从蒸馏塔的进料区中升出的蒸气中夹带的液体的量;洗涤区收集装置,其具有改进的设计,用于收集从设置在该蒸馏塔中的液/ 洗涤区,用于将至少一部分收集的污泥蜡再循环到洗涤区的顶部以用于分配为洗涤油的再循环子系统和控制子系统。 进料口分配器保证水平流体流动路径不受横向表面的影响,从而最小化夹带在进料流中蒸气中的液滴的雾化。