公开(公告)号：US20240027400A1

公开(公告)日：2024-01-25

申请号：US18254214

申请日：2021-01-18

Applicant: HATCH LTD.

Inventor： Wai Lai Winnie Ying ,  Maria Tibbo

IPC: G01N29/04 ,  G01N29/07

CPC classification number: G01N29/043 ,  G01N29/07 ,  G01N2291/0289

Abstract: A system and method for assessing deterioration of a metallurgical runner using acoustic emissions. The system may be referred to as an acoustic emission runner integrity system (AERIS). The system comprises acoustic emission sensors mounted on the runner. At least some of the sensors can detect acoustic emission signals in the runner. The sensors may be able to emit acoustic emission signals into the runner. The sensors are in communication with a controller. The controller is configured to one or more of identify and monitor deterioration of the runner based on the acoustic emission signals of the sensors. The method comprises affixing AE sensors to the runner, detecting AE signals with the sensors, and assessing deterioration of the runner based on the AE signals of the sensors.

公开(公告)号：US11384986B2

公开(公告)日：2022-07-12

申请号：US16499708

申请日：2018-01-22

Applicant: Hatch Ltd.

Inventor： Dong Shen ,  Michael Morgan Campbell ,  Steven Robert Hawthorne

IPC: H05B7/148 ,  F27D19/00 ,  F27D11/08 ,  F27D21/00

Abstract: A system measures parameters of the electricity drawn by an arc furnace and, based on an analysis of the parameters, provides indicators of whether arc coverage has been optimized. Factors related to optimization of arc coverage include electrode position, charge level, slag level and slag behaviour. More specifically, such indicators of whether arc coverage has been optimized may be used when determining a position for the electrode such that, to an extent possible, a stable arc cavity is maintained and an open arc condition is avoided. Conveniently, by avoiding open arc conditions, the internal linings of the furnace walls and roof may be protected from excessive wear and tear.

公开(公告)号：US20210198766A1

公开(公告)日：2021-07-01

申请号：US16078677

申请日：2018-08-15

Applicant: HATCH LTD.

Inventor： David DELVES ,  Mahdi MAHDI ,  Sabrina FRANCEY ,  Yuhin WU ,  Santiago FAUCHER ,  Bruce UYEDA ,  Daniel MAJOR ,  Kamal ADHAM

IPC: C22B1/243 ,  C22B26/12 ,  C22B60/02 ,  B02C23/14 ,  B02C19/06

Abstract: A system and method for dry ablation beneficiation of ore. The system comprises a nozzle to emit an air stream, and a feeder to provide ore particles for entraining in the air stream and colliding. The ore comprises gangue grains bound together with a cementing material. The cementing material comprises a desired material. The collisions are controlled to help preferentially break the cementing material over breaking the bonds holding a gangue grain together. The system also comprises a classifier to separate broken cementing material from the remaining material (which includes gangue grains) based on size. The method comprises entraining the ore particles in an air stream and colliding to preferentially break the cementing material. The ore particles may be collided with each other or a surface. The broken cementing materials are then separated from the remaining materials (which includes gangue grains). The enriched ore is the separated cementing material.

公开(公告)号：US10995014B1

公开(公告)日：2021-05-04

申请号：US17066769

申请日：2020-10-09

Applicant: Hatch Ltd. ,  Northvolt AB

Inventor： Robert John Fraser ,  Evangelos Stamatiou ,  Mark Joseph Machado ,  Henry Christian Immo von Schroeter ,  Mahmood Alemrajabi

IPC: C01G53/10 ,  C01G51/10 ,  C01G45/10 ,  C22B26/12 ,  H01M10/0525 ,  C22B7/00 ,  C22B3/00 ,  H01M10/54

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.

公开(公告)号：US20180105895A1

公开(公告)日：2018-04-19

申请号：US15568896

申请日：2016-04-12

Applicant: HATCH LTD.

Inventor： KAMAL ADHAM ,  CHRISTOPHER THOMAS HARRIS ,  CHRISTOPHER FRANCIS MICHAEL TWIGGE-MOLECEY

IPC: C22B1/11 ,  C01G49/00 ,  B01J8/18

CPC classification number: C22B1/11 ,  A61B17/7098 ,  A61B17/8095 ,  A61B17/864 ,  A61B17/8645 ,  A61B17/866 ,  A61B2017/00884 ,  A61B2017/00893 ,  A61B2017/00955 ,  A61B2017/561 ,  B01J8/1827 ,  B01J8/1836 ,  B01J8/1845 ,  B01J2208/00752 ,  B01J2208/00893 ,  C01G49/009

Abstract: A process and reactor for arsenic fixation in which a first gas stream comprises oxygen and an iron-containing particulate material. The oxygen and particulate material may be fed to reactor through respective first and second inlets. A second gas stream containing one or more volatile arsenic compounds is fed through a third inlet and mixed with the first gas stream and the particulate material to produce a combined gas stream containing the volatile arsenic compounds and the particulate material. The arsenic compounds are reacted with iron in the particulate material as the combined gas stream flows through the reactor to produce solid iron arsenates which are then recovered. The portion of the reactor including the first, second and third inlets is vertically oriented, and the reactor may include a venturi arrangement having a throat at which the second inlet is located.

公开(公告)号：US09850138B2

公开(公告)日：2017-12-26

申请号：US14231351

申请日：2014-03-31

Applicant: Hatch Ltd.

Inventor： David R. Chinloy ,  Jianping Zhang ,  Evangelos Stamatiou

IPC: B01D1/24 ,  C01D3/08 ,  F24J2/04 ,  C01D3/06 ,  F28C3/06 ,  C02F1/22

CPC classification number: C01D3/08 ,  B01D1/24 ,  C01D3/06 ,  C02F1/22 ,  F24S10/10 ,  F24S10/13 ,  F28C3/06

Abstract: A pond for cooling and/or recovering salt from a hot aqueous solution of a salt such as potassium chloride produced by solution mining. The pond comprises a plurality of channels arranged side-by-side, each of the channels being defined by a plurality of sides. An inlet is provided in a side of a channel for receiving the aqueous solution, and an outlet is provided in a side of another one of the channels for discharging the aqueous solution. The pond has at least one dike separating the channels from one another. A gap is formed in each dike to permit the aqueous solution to flow between the channels, the gap having a length which is about 10 to about 40 percent of the length of the sides of the channels. Salt is crystallized and the solution is cooled as it passes through the channels of the pond.

公开(公告)号：US09657939B2

公开(公告)日：2017-05-23

申请号：US14390944

申请日：2013-04-05

Applicant: Hatch Ltd.

Inventor： Maciej Jastrzebski ,  Alan Mallory ,  Javier Eduardo Larrondo Piña ,  Thomas W. Gonzales ,  Alexandre Lamoureux ,  Ivan Marincic

IPC: F23D1/00 ,  F27D99/00 ,  F27D3/00

CPC classification number: F23D1/00 ,  F27D3/0033 ,  F27D99/0033

Abstract: A burner is provided for a pulverous feed material. The burner has a structure that integrates the burner with a reaction vessel, and has an opening that communicates with the interior of the reaction vessel. The burner also has a gas supply channel to supply reaction gas through the opening into the reaction vessel, and a feed supply for delivering pulverous material to the reaction vessel. The burner also has a fluidic control system having at least one port capable of directing a stream of fluid at an angle to the direction of flow of the reaction gas so as to modify the flow of the reaction gas. In addition, components are provided to modify the swirl intensity and turbulence intensity of the reaction gas independently of the exit velocity.

公开(公告)号：US09273368B2

公开(公告)日：2016-03-01

申请号：US14235277

申请日：2012-07-16

Applicant: Iakov M. Gordon

Inventor： Iakov M. Gordon

IPC: C21B11/02 ,  C21B13/02 ,  C21B13/00

CPC classification number: C21B13/02 ,  C21B11/02 ,  C21B13/004 ,  C21B13/0073 ,  C21B2100/02 ,  C21B2100/04 ,  C21B2100/282 ,  Y02P10/122 ,  Y02P10/128 ,  Y02P10/136

Abstract: A process for direct reduction of iron oxide in a shaft furnace. The process includes feeding iron oxide to the furnace, passing the iron oxide successively downwardly through a pre-reduction zone, a transition zone, a metallization zone, and a cooling zone while passing rich fuel gas produced by external partial combustion with a sub-stoichiometric volume of air upwardly through the pre-reduction zone in counter-current flow so as to partially reduce the iron oxide, and passing reducing gas downwardly through the metallization zone in co-current flow so as to substantially complete the reduction of the iron oxide to metallic iron. The reducing gas is first pre-heated in a gas heater and then subjected to partial combustion with oxygen to further increase its temperature. The process includes removing a metallized iron product from the cooling zone.

Abstract translation: 在竖炉中直接还原氧化铁的方法。 该方法包括向炉中加入氧化铁，使铁氧化物连续向下通过预还原区，过渡区，金属化区和冷却区，同时通过外部部分燃烧产生的富燃料气体以亚化学计量 空气的体积向上通过预还原区域以逆流流动，以便部分地还原氧化铁，并且使还原气体以并流流动向下通过金属化区域，以便基本上完成氧化铁的还原 金属铁。 还原气体首先在气体加热器中预热，然后用氧进行部分燃烧，以进一步提高其温度。 该方法包括从冷却区去除金属化的铁产品。

公开(公告)号：US20150050188A1

公开(公告)日：2015-02-19

申请号：US13972439

申请日：2013-08-21

Applicant: Hatch Ltd.

Inventor： Kevin S. Fraser ,  Murray S. Pearson ,  William E. McCombe

IPC: B01J19/00

CPC classification number: B01J19/0033 ,  B01J19/0006 ,  B01J19/006 ,  B01J19/0066 ,  B01J19/18 ,  B01J19/1862 ,  B01J2219/00166 ,  B01J2219/00182 ,  B01J2219/002 ,  B01J2219/00213 ,  B01J2219/00236 ,  B01J2219/00768 ,  B01J2219/182

Abstract: A method is disclosed for controlling retention time in a reactor, such as an autoclave, having a plurality of compartments separated by dividers with underflow openings. A retention time of the reaction mixture is calculated and compared with an optimal retention time, and the volumes of the reaction mixture in the compartments are adjusted while maintaining the flow rate of the reaction mixture, so as to change the retention time to a value which is closer to the optimal retention time. The reactor may include a level sensor in the last compartment for generating volume data; a control valve for controlling the liquid level in the last compartment; and a controller which receives volume data from the level sensor and controls operation of the control valve.

Abstract translation: 公开了一种用于控制在诸如高压釜的反应器中的保留时间的方法，其具有由具有下溢开口的分隔器隔开的多个隔室。 计算反应混合物的保留时间并与最佳保留时间进行比较，并且在保持反应混合物的流速的同时调整隔室中的反应混合物的体积，从而将保留时间改变为 更接近最佳保留时间。 反应器可以包括用于产生体积数据的最后隔室中的液位传感器; 用于控制最后隔室中的液位的控制阀; 以及控制器，其从液位传感器接收音量数据并控制控制阀的操作。

公开(公告)号：US20140352269A1

公开(公告)日：2014-12-04

申请号：US14365859

申请日：2012-12-13

Applicant: Hatch Ltd.

Inventor： Michael Trovant ,  Arran Thomas McGrath ,  Daniel Scott

IPC: B01D45/04

CPC classification number: B01D45/04 ,  B65G69/182

Abstract: A chute receives contaminant gas-laden dust from a dust collector. At least one gas injector provides an upward flow of purge gas in the chute to release contaminant gas entrained with the dust. Downstream areas are maintained at positive pressure relative to upstream areas. A purge hopper arranged below the chute collects the dust. Dust handling apparatuses allow the upward flow of the purge and contaminant gases. Movable flaps in the dust handling apparatuses include perforations that may be capped to vary the gas flow rate. A dust discharge apparatus discharges washed dust from the purge hopper.

Abstract translation: 滑槽从集尘器接收污染物气体的灰尘。 至少一个气体喷射器在滑槽中提供吹扫气体的向上流动以释放夹带有灰尘的污染气体。 下游地区相对于上游地区保持正压。 布置在滑槽下方的清洗料斗收集灰尘。 灰尘处理设备允许吹扫和污染气体向上流动。 粉尘处理装置中的可移动襟翼包括可以被封盖以改变气体流速的穿孔。 排尘装置从清洗料斗排出洗涤的灰尘。