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公开(公告)号：US07976774B2
公开(公告)日：2011-07-12
申请号：US12136013
申请日：2008-06-09
Applicant: Kevin Fraser , Murray Pearson
Inventor： Kevin Fraser , Murray Pearson
CPC classification number: C21B7/163 , C21C5/4606 , C21C5/462 , C21C5/5217 , F27D3/16 , Y02P10/216
Abstract: A composite sparger for use in elevated temperature and corrosive environments. The composite sparger is formed from a substrate tube with a thermally conductive interlayer on its surfaces exposed to the reactor environment. The thermally conductive interlayer is protected with a corrosion resistant layer. The corrosion resistant layer protects the interlayer from the corrosive environment of the reactor vessel and the interlayer material conducts heat away from the corrosion resistant layer to prevent combustion of the corrosion resistant layer. The interlayer material and corrosion resistant material may be selected so as to provide for sufficient thermal conduction to prevent combustion of the corrosion resistant material.
Abstract translation: 用于高温和腐蚀性环境的复合喷雾器。 复合喷雾器由在其暴露于反应器环境的表面上具有导热中间层的基底管形成。 导热中间层用耐腐蚀层保护。 耐腐蚀层保护中间层免受反应堆容器的腐蚀环境的影响，夹层材料将热量从耐腐蚀层传导出去以防止耐腐蚀层的燃烧。 可以选择中间层材料和耐腐蚀材料，以便提供足够的热传导以防止耐腐蚀材料的燃烧。
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公开(公告)号：US20110143296A1
公开(公告)日：2011-06-16
申请号：US13009223
申请日：2011-01-19
Applicant: Kevin S. Fraser , Murray S. Pearson , William E. McCombe
Inventor： Kevin S. Fraser , Murray S. Pearson , William E. McCombe
CPC classification number: C22B3/02 , C22B3/04 , F27B15/18 , F27D19/00 , G05D23/1393 , G05D23/1931 , Y02P10/234
Abstract: A method and apparatus are disclosed for controlling a temperature within a reactor vessel such as an autoclave operating at elevated temperature and pressure. The apparatus includes a preheating vessel for preheating a feed material such as an aqueous slurry. The preheating vessel forms part of a preheating control system which provides the primary means of temperature control within the reactor vessel, and the reactor temperature is used as the setpoint for the preheating control system. The apparatus also comprises secondary means for heating and cooling the reactor. The feed material temperature is increased or decreased by the preheating control system, based on the reactor temperature. This is sufficient to heat or cool the reactor under most process conditions. Where the preheating control system is at or near its capacity for heating or cooling, the secondary heating or cooling means is activated to bring the reactor temperature within an optimum range.
Abstract translation: 公开了用于控制反应器容器内的温度的方法和装置，例如在升高的温度和压力下操作的高压釜。 该装置包括用于预热诸如含水浆料的进料的预热容器。 预热容器形成预热控制系统的一部分，其提供反应器容器内的主要温度控制装置，反应器温度用作预热控制系统的设定值。 该装置还包括用于加热和冷却反应器的二次装置。 基于反应器温度，通过预热控制系统增加或减少进料温度。 这足以在大多数工艺条件下加热或冷却反应器。 在预热控制系统处于或接近其加热或冷却能力的地方，二次加热或冷却装置被激活以使反应器温度在最佳范围内。
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63.发明授权System and method for the acoustic monitoring of tapblocks and similar elements 有权tapblocks和类似元素的声学监测系统和方法公开(公告)号：US07783436B2
公开(公告)日：2010-08-24
申请号：US12240215
申请日：2008-09-29
Applicant: Afshin Sadri , Pawel B. Gebski , Bert O. Wasmund , Nils W. Voermann
Inventor： Afshin Sadri , Pawel B. Gebski , Bert O. Wasmund , Nils W. Voermann
CPC classification number: F27D21/00 , C21B7/12 , C21B7/24 , C21C5/4653 , C21C5/4673 , F27D3/1518
Abstract: Some metallurgical furnaces have a tapblock that is blocked during operation of the furnace. The tapblock may be opened by lancing, drilling, tapping or by other methods to release metal from the furnace. By monitoring acoustic emissions during the opening process, feedback may be provided to improve the opening process and to avoid excessive damage to the tapblock, the cooling elements, a refractory lining of the tapblock or other elements of the metallurgical furnace.
Abstract translation: 一些冶金炉具有在炉的操作期间被阻塞的分流块。 可以通过穿刺，钻孔，攻丝或通过其它方法来打开分接头以从炉中释放金属。 通过在打开过程中监测声发射，可以提供反馈以改善打开过程并且避免对抽头块，冷却元件，分接块的耐火衬层或冶金炉的其它元件的过度损坏。
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公开(公告)号：US20080056327A1
公开(公告)日：2008-03-06
申请号：US11738901
申请日：2007-04-23
Applicant: Terry Gerritsen
Inventor： Terry Gerritsen
CPC classification number: H05B7/148 , F27D11/10 , F27D19/00 , F27D21/00 , Y02P10/256 , Y02P10/259
Abstract: Aspects of the invention relate to methods and systems for predictive electrode lowering in an electric furnace. According to one aspect, there is provided a method comprising: monitoring an operating parameter of a variable reactance circuit; comparing the operating parameter with a threshold value; and lowering an electrode coupled to the variable reactance circuit if the operating parameter meets or passes the threshold value. The operating parameter may be a current threshold. The current threshold may be determined based on at least one of: a predetermined proportion of an expected total current through the variable reactance circuit; a primary supply voltage; a rated reactance value of the parallel inductor; and a target power factor. The current threshold may be in the range between about 10% and 60% of the expected total current through the variable reactance circuit and may vary proportionally with the primary supply voltage.
Abstract translation: 本发明的方面涉及电炉预测电极降低的方法和系统。 根据一个方面，提供了一种方法，包括：监视可变电抗电路的工作参数; 将操作参数与阈值进行比较; 以及如果所述操作参数满足或通过所述阈值，则降低耦合到所述可变电抗电路的电极。 操作参数可以是电流阈值。 可以基于以下中的至少一个来确定当前阈值：通过可变电抗电路的预期总电流的预定比例; 初级电源电压; 并联电感的额定电抗值; 和目标功率因数。 电流阈值可以在通过可变电抗电路的预期总电流的约10％至60％之间的范围内，并且可以与初级电源电压成比例地变化。
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公开(公告)号：US07134397B2
公开(公告)日：2006-11-14
申请号：US10854349
申请日：2004-05-26
Applicant: Kenneth T. Hutchinson , Kenneth M. Donaldson , Keith E. Joiner , Clarence A. Nichols , Jimmy Sarvinis
Inventor： Kenneth T. Hutchinson , Kenneth M. Donaldson , Keith E. Joiner , Clarence A. Nichols , Jimmy Sarvinis
Abstract: A binding system for applying a vertical compressive force to the refractory walls of a rectangular or circular furnace comprises a compressive member engaging a laterally extending surface of the furnace wall and a support member to which the compressive member is connected. The compressive member preferably comprises a coil spring which acts directly on the laterally extending surface or indirectly through a force-applying member. The force applied by the compressive member is sufficient to control vertical expansion and substantially prevent vertical expansion of the furnace walls due to infiltration of material into the joints between the refractory bricks during operation of the furnace.
Abstract translation: 用于向矩形或圆形炉的耐火壁施加垂直压缩力的装订系统包括接合炉壁的横向延伸表面的压缩构件和压缩构件连接到的支撑构件。 压缩构件优选地包括螺旋弹簧，其直接作用在横向延伸的表面上或间接地通过施力构件。 由压缩构件施加的力足以控制垂直膨胀，并且基本上防止由于材料在炉的操作期间将材料浸入耐火砖之间的接合处而导致炉壁垂直膨胀。
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Patent Agency Ranking
公开(公告)号：US20060196399A1
公开(公告)日：2006-09-07
申请号：US11070035
申请日：2005-03-02
Applicant: Felim McCaffrey , Nils Voermann , Clarence Nichols , Robert Veenstra , Jimmy Sarvinis , Keith Joiner , Brett Emery
Inventor： Felim McCaffrey , Nils Voermann , Clarence Nichols , Robert Veenstra , Jimmy Sarvinis , Keith Joiner , Brett Emery
CPC classification number: F27B3/12
Abstract: Binding systems are described for applying compressive forces on the refractory hearth and/or refractory sidewall of a circular furnace having an outer metal shell which may be segmented. One preferred binding system comprises a tensioning band having one or more segments which extends around the furnace hearth and/or sidewall, with a resilient connection being provided between the opposite ends of the band and, where the band is segmented, resilient connections are also provided between the ends of adjacent segments. Another preferred binding system comprises a plurality of pivoting members provided around the circumference of the furnace. Each pivoting member is acted upon by a force-generating member which applies a controlled amount of force to the pivoting member and causes it to apply a compressive force to the hearth.
Abstract translation: 描述了用于将压力施加在具有可分段的外金属壳的圆形炉的耐火炉床和/或耐火侧壁上的结合系统。 一种优选的装订系统包括具有一个或多个在炉膛和/或侧壁周围延伸的段的张紧带，弹性连接设置在带的相对端之间，并且在带被分段的地方，也提供弹性连接 在相邻段的末端之间。 另一个优选的装订系统包括设置在炉周围的多个枢转构件。 每个枢转构件由力产生构件作用，该力产生构件向枢转构件施加受控量的力并使其向炉膛施加压缩力。
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公开(公告)号：US20240409432A1
公开(公告)日：2024-12-12
申请号：US18754741
申请日：2024-06-26
Applicant: Hatch Ltd. , Northvolt AB
Inventor： Robert John FRASER , Evangelos STAMATIOU , Mark Joseph MACHADO , Henry Christian Immo von SCHROETER , Mahmood ALEMRAJABI
Abstract: A process for generating a metal sulfate that involves crystallizing a metal sulfate from an aqueous solution to form a crystallized metal sulfate in a mother liquor with uncrystallized metal sulfate remaining in the mother liquor; separating the crystallized metal sulfate from the mother liquor; basifying a portion of the mother liquor to convert the uncrystallized metal sulfate to a basic metal salt; and using the basic metal salt upstream of crystallizing the metal sulfate. So crystallized, the generated metal sulfate may be battery-grade or electroplating-grade.
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公开(公告)号：US20230084963A1
公开(公告)日：2023-03-16
申请号：US17917480
申请日：2021-04-09
Applicant: HATCH LTD.
Inventor： Matthew Gorczyca , Mark James Mitchell , Patrick Henry McGinn , Michael Morgan Campbell , Matthew Douglas Brown
IPC: G01R31/52 , B60M3/00 , B61D15/12 , B61K9/08 , B61L27/53 , G01R33/07 , G01R31/00 , G01R31/11 , G01R33/00 , G01R33/028 , G01R33/04 , G01R33/09
Abstract: A method, device, and system for detecting a current leak in a traction power rail. Magnetic or electrical properties of the rail are measured. The measurements are performed using a rail instrument that senses the properties around the rail at various times while the instrument is being moved down the rail, such as using a cart or train. The rail instrument may be a flux concentrator or open Rogowski coil. The locations of the rail, about which the readings are taken by the rail instrument, may be determined and correlated with the measurements themselves. The method may comprise measuring the magnetic field of the rail along a length of the rail, and identifying a leak based on differences between the magnetic field measurements. The system may comprise a cart comprising the rail instrument and a location instrument.
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公开(公告)号：US20230046474A1
公开(公告)日：2023-02-16
申请号：US17979502
申请日：2022-11-02
Applicant: HATCH LTD.
Inventor： Robert John Fraser , Andrew Doolittle , Alexander Sutherland , Adam Best , Firsya Risandi
IPC: C01G53/10
Abstract: A process for removing impurities from a crystallized metal sulfate, including contacting crystallized metal sulfate with a liquor rich in metal sulfate. The metal may be cobalt, nickel, or manganese, and the impurities may be magnesium or calcium. The liquor rich in metal sulfate may be an overflow liquor from crystallization of the metal sulfate, and said overflow liquor may be subject to one or more impurities removal steps prior to contacting the crystallized metal sulfate, such that the overflow liquor contains lower levels of impurities than the crystallized metal sulfate to be contacted. A counter-current wash circuit may be used to remove impurities from a crystallized metal sulfate, whereby a plurality of washing tanks are configured to receive crystallized metal sulfate in a sequence, and washing liquor in reverse of said sequence.
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公开(公告)号：US11122654B2
公开(公告)日：2021-09-14
申请号：US15579796
申请日：2016-05-26
Applicant: HATCH LTD.
Inventor： Dong Shen , Michael Morgan Campbell , Jason Cheung , James Wikston
Abstract: It is proposed herein to employ thyristor firing angles as a fast prediction of flicker in power supply for an electric arc furnace. It is further proposed to actively modify operating variables for the electric arc furnace to maintain the flicker below a predefined threshold. Aspects of the present application use the thyristor firing angles in combination with control ranges of variable reactance devices to predict the flicker severity level generated by the electric arc furnace with thyristor-controlled variable reactance devices. Based on the predicted flicker level, at least one operating variable of the electric arc furnace may be changed, if required, to maintain flicker to acceptable limit.
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