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1. 发明申请

WO2019229444A1 A SCREEN BOWL DECANTER CENTRIFUGE 审中-公开
公开(公告)号：WO2019229444A1
公开(公告)日：2019-12-05
申请号：PCT/GB2019/051481
申请日：2019-05-30
申请人： THOMAS BROADBENT & SONS, LIMITED
发明人： SELWAY, Andrew John , FROHLICH, Nicholas Robert Jr. , HAIGH, Nigel Patterson
IPC分类号： B04B3/04
摘要： A screen bowl decanter centrifuge comprises a horizontally rotatable bowl (10) within which a scroll conveyor (46, 60) is coaxially mounted for rotation at a slightly different speed for conveying solids, deposited by centrifugal action on the internal surface of the bowl, towards a solids discharge end of the bowl, the other end of the bowl having a liquids outlet (28). The bowl (10) has an imperforate frustoconical portion (18), which converges towards the solids discharge end and provides a sloping ramp up which solids are drawn by the conveyor out of the liquid pool contained in the bowl, and a perforate screen portion (20) downstream of the imperforate frustoconical portion (18) in the direction of solids discharge for assisting dewatering of the solids. The perforate screen portion (20) comprises a first portion (22) downstream of the imperforate frustoconical portion (18), inclined at a first angle with respect to the rotational axis (A – A) of the bowl, and a second, divergent portion (24), considered in the direction of solids discharge, downstream of the first portion (22) and inclined at a second angle with respect to the rotational axis of the bowl. The scroll conveyor (46, 60) is located adjacent to both the imperforate portion (18) and the perforate screen portion (20) of the bowl.

2. 发明申请

WO1991002969A1 METHOD FOR DETECTING WEAR ON METAL ASSEMBLIES HAVING INERT COATINGS THEREON 审中-公开
标题翻译：用于检测具有其中涂层的金属组件的方法
公开(公告)号：WO1991002969A1
公开(公告)日：1991-03-07
申请号：PCT/GB1990001323
申请日：1990-08-24
申请人： THOMAS BROADBENT & SONS LIMITED , GRIMWOOD, Geoffrey, Luther
发明人： THOMAS BROADBENT & SONS LIMITED
IPC分类号： G01N27/20
CPC分类号： G01N27/205
摘要： A method and apparatus for testing, in situ, for imperfections in an inert coating (2) of a moving metal component (1) of an apparatus (e.g. a metal basket of a centrifuge) involves covering the inert coating (2) with an electrically conductive liquid (33), applying an electrical voltage across the inert coating (2) while the apparatus is operational, monitoring the current or applied voltage, and utilising the measured current or voltage to provide an indication of the condition of the inert coating. If the coating is defective, the conductive liquid will find its way into any flaws or imperfections, thereby providing a path of lower electrical resistance.

3. 发明公开

EP2376233A1 DECANTING CENTRIFUGE WITH PLURAL SCREEN SUPPORT SECTIONS 审中-公开
标题翻译：具有多SIEBTRAGABSCHNITTEN DEAN动物离心机
公开(公告)号：EP2376233A1
公开(公告)日：2011-10-19
申请号：EP09803890.4
申请日：2009-12-22
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： HELEY, Trevor , WRIGHT, John
IPC分类号： B04B3/04 , B04B7/16
CPC分类号： B04B3/04 , B04B7/16
摘要： A screen bowl decanting centrifuge comprising a rota table bowl (4) and a conveyor assembly (8) adapted, in use, to separate a slurry into solids and liquids components, and an outlet for the liquids component which outlet communicates with the inlet (102) of a perforated bowl section (100) arranged, in use, to filter the liquids component as it passes through the perforations of a screen or screens (13), wherein the perforated bowl section (100) comprises a plurality of removably mounted screen support sections (50).

4. 发明公开

EP1475156A2 Load control of centrifuges 有权
标题翻译： STEUERUNG DESFÜLLUNGSGRADESVON ZENTRIFGGEN
公开(公告)号：EP1475156A2
公开(公告)日：2004-11-10
申请号：EP04252545.1
申请日：2004-04-30
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： Grimwood, Geoffrey Clive , Grimwood, Geoffrey Luther
IPC分类号： B04B11/04
CPC分类号： B04B11/043
摘要： A method of controlling a centrifuge of the type having a rotating perforated basket (1) on whose inner peripheral wall a liquids/solids slurry is caused to collect in use, with separated liquid being collected via the basket perforations (8). The method comprising taking depth measurement of the material in the rotating basket (8) continuous or at repeated intervals, over a basket cycle from commencement of slurry feed to discharge of solids, using at least one laser unit (30) adapted to direct a beam (32) of coherent light energy towards said inner peripheral wall of the basket of solids. The depth measurements can be made using at least one laser unit (30) adapted to direct a beam (32) of coherent light energy towards said inner peripheral wall of the basket (8).
摘要翻译：一种控制具有旋转穿孔筐（1）的类型的离心机的方法，在其内周壁上使液体/固体浆液在使用中收集，分离的液体通过筐式穿孔（8）收集。该方法包括：使用至少一个适于引导光束的激光单元（30），在从浆料进料开始到固体排出的连续或以重复间隔连续或以重复的间隔深度测量材料，（32）相对于固体篮的所述内周壁的相干光能。深度测量可以使用至少一个激光单元（30）来进行，所述至少一个激光单元适于将相干光能量束（32）引向篮子（8）的所述内周壁。

5. 发明公开

EP0594315A1 Particle separation and drying apparatus 失效
标题翻译： Trennung von Teilchen和Trockner。
公开(公告)号：EP0594315A1
公开(公告)日：1994-04-27
申请号：EP93307795.0
申请日：1993-09-30
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： Grimwood, Geoffrey Luther , Grimwood, Geoffrey Clive
IPC分类号： B01D21/00 , B01D29/00 , B04B15/12 , F26B1/00
CPC分类号： B04B11/08 , B01D33/11 , B01D33/466 , B01D33/58 , B01D33/60 , B01D33/663 , B01D33/666 , B01D33/76 , B01D2201/287 , B04B15/02 , B04B15/12 , F26B7/00
摘要： An apparatus which performs solids particles separation from a liquids/solids slurry, and subsequent drying of such solids particles, within a single enclosure. Further processing functions, such as reslurry washing, plug washing, crystal growth and other reactions, can also be carried out within that single enclosure. The single enclosure comprises a partly perforated centrifuge drum (2) which can be rotated about a vertical axis at a fast speed at which the centrifugal effects on material in the drum are substantial so that partly dried solids collect in a substantially cylindrical form on the side wall of the drum, and a slow speed at which the centrifugal effects on material in the drum are negligible; a stripping mechanism (10) which is displaceable within the drum (2), when the drum (2) is rotated at slow speed, for dislodging solids which have been built up on the side wall of the drum during rotation at high speed ; and means (15) for heating at least a bottom part of the drum on which partly dried solids collect when dislodged by the stripping mechanism from the side wall of the drum. The solids can themselves thus be heated, or otherwise processed, to cause evaporation therefrom of any remaining liquid.
摘要翻译：在单个外壳内执行固体颗粒从液体/固体浆料分离以及随后干燥这种固体颗粒的装置。还可以在该单个外壳内进行诸如再次洗涤，塞子洗涤，晶体生长和其它反应的其它处理功能。单个外壳包括部分穿孔的离心机鼓（2），其可以以垂直轴线以快速的速度旋转，在该速度下，对滚筒中的材料的离心效应是显着的，使得部分干燥的固体以基本上圆柱形的形式聚集在侧面滚筒的壁，以及对滚筒中材料的离心效应可以忽略的缓慢的速度; 当滚筒（2）以低速旋转时可移动的滚筒（2）内的剥离机构（10），以便在高速旋转期间移除在鼓的侧壁上积聚的固体; 以及用于加热所述滚筒的至少底部的装置（15），所述滚筒的底部部分在从所述滚筒的侧壁移除所述剥离机构时收集在所述部分干燥的固体上。因此，固体本身可被加热或以其他方式加工，从而使任何剩余液体蒸发。

6. 发明公开

EP0166582A3 Improvements in and relating to separating systems 失效
标题翻译：对分离系统的改进和相关
公开(公告)号：EP0166582A3
公开(公告)日：1987-10-28
申请号：EP85304432
申请日：1985-06-20
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： Grimwood, Geoffrey Luther , Brook, Geoffrey Graham
IPC分类号： B04B01/20
CPC分类号： B04B15/12 , B04B1/20 , B04B3/04
摘要： A method of separating solid particles from the liquid constituent of a slurry, containing solids having a «wide» particle size distribution, that is, a size distribution wherein the equivalent diameter of particles in the slurry ranges between at least 15 microns and 150 microns. The method uses a screen bowl centrifuge and comprises:
(a) establishing a bed of solids on the screen of the centrifuge whose maximum radial thickness is greater than 15 times the mean particle equivalent diameter of said solids in the slurry; (b) operating the scroll of the centrifuge at a speed within the range of 0.5 to 10% of the bowl speed; and (c) returning at least a portion of the solids contaminated centrate from the centrifuge to the interior of the screen section of the bowl so as to deposit the centrate on the solids passing over the screen section at or adjacent a region of maximum solids thickness. A portion of the centrate from the centrifuge, contaminated with the fine solids, is returned to the interior of the screen section of the bowl by way of an auxiliary feed pipe. The pipe is so arranged as to cause the centrate to be deposited on the solids passing over the screen section.

7. 发明公开

EP0063910A2 Multi phase separation process 失效
标题翻译： Mehrphasen-Trennverfahren。
公开(公告)号：EP0063910A2
公开(公告)日：1982-11-03
申请号：EP82302007.8
申请日：1982-04-20
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： Wright, John , Grimwood, Geoffrey Luther
IPC分类号： B03B9/02 , E21B21/06
CPC分类号： B01D11/02 , B03B9/02 , B04B5/10 , E21B21/001 , E21B21/066 , E21B41/005
摘要： A multi-phase separation process which is particularly useful in connection with the cleaning of cuttings resulting from conventional oil drilling techniques.
A mixture of carrier liquid (sea water), a contaminant liquid (oil) and solids cuttings is passed over the screen of a screen bowl centrifuge while simultaneously washing the mixture with further sea water whereby a finer portion of the solids particles is washed through the screen taking with it the contaminant liquid oil which has been washed off the solids by the sea water and which adheres to the finer solids particles, thereby leaving the remaining, larger solids particles substantially free of oil of the "available" type which adheres to solids particles by surface tension forces only and can therefore be detached from such particles solely by immersion or washing in the carrier liquid.
Separation of the finer solids particles from the sea water carrier liquid is achieved in a secondary centrifuge.
摘要翻译：一种多相分离方法，其特别适用于由常规的石油钻井技术产生的切屑的清洁。将载体液体（海水），污染液体（油）和固体切片的混合物在筛碗离心机的筛网上通过，同时用进一步的海水洗涤混合物，由此将较细的固体颗粒部分通过筛选其中已经被海水冲洗掉固体的污染液体油，并粘附到较细的固体颗粒上，从而留下剩余的较大的固体颗粒基本上没有附着于固体的“可用”类型的油颗粒仅由表面张力产生，因此可以仅通过在载体液中浸渍或洗涤而从这些颗粒中分离出来。在二次离心机中实现更细的固体颗粒与海水载体液体的分离。

8. 发明公开

EP1475156A3 Load control of centrifuges 有权
标题翻译： Steuerung desFüllungsgradesvon Zentrifugen
公开(公告)号：EP1475156A3
公开(公告)日：2005-10-26
申请号：EP04252545.1
申请日：2004-04-30
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： Grimwood, Geoffrey Clive , Grimwood, Geoffrey Luther
IPC分类号： B04B11/04 , B04B15/12
CPC分类号： B04B11/043
摘要： A method of controlling a centrifuge of the type having a rotating perforated basket (1) on whose inner peripheral wall a liquids/solids slurry is caused to collect in use, with separated liquid being collected via the basket perforations (8). The method comprising taking depth measurement of the material in the rotating basket (8) continuous or at repeated intervals, over a basket cycle from commencement of slurry feed to discharge of solids, using at least one laser unit (30) adapted to direct a beam (32) of coherent light energy towards said inner peripheral wall of the basket of solids. The depth measurements can be made using at least one laser unit (30) adapted to direct a beam (32) of coherent light energy towards said inner peripheral wall of the basket (8).
摘要翻译：一种控制具有旋转穿孔筐（1）的类型的离心机的方法，在其内周壁上使液体/固体浆液在使用中收集，分离的液体通过筐式穿孔（8）收集。该方法包括：使用至少一个适于引导光束的激光单元（30），在从浆料进料开始到固体排出的连续或以重复间隔连续或以重复的间隔深度测量材料，（32）相对于固体篮的所述内周壁的相干光能。深度测量可以使用至少一个激光单元（30）来进行，所述至少一个激光单元适于将相干光能量束（32）引向篮子（8）的所述内周壁。

9. 发明公开

EP1561511A1 Decanting centrifuge 有权
标题翻译： Dekantierzentrifuge
公开(公告)号：EP1561511A1
公开(公告)日：2005-08-10
申请号：EP05250432.1
申请日：2005-01-27
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： Grimwood, Geoffrey Clive, Dr , Wright, John
IPC分类号： B04B15/12 , B04B3/04 , B04B1/20
CPC分类号： B04B1/20 , B04B3/04 , B04B15/12
摘要： A solid or screen bowl decanting-type centrifuge comprising:

a rotatable bowl (3); a helical scroll conveyor which rotates coaxially within the bowl at a different rotational speed, the helical scroll comprising a hub carrying a plurality of flights (8) whose radially outer edges lie close to an inner wall of the bowl (3) such that, in use, solids are scrolled by the conveyer to solids discharge ports (11) at one end of the bowl, with separated liquid being discharged from liquids discharge ports (5) at the opposite end of the bowl. The conveyor hub (6) carries a plurality of nozzles in a wash zone (17) for supplying wash fluid to solids being scrolled by the conveyer towards the solids discharge ports (11). The conveyor hub also carries a blade (22) in the region of the nozzles (18) and intermediate adjacent flights (8) of the conveyor for directing fluid droplets from the nozzles (18) over said solids.
摘要翻译：一种固体或筛碗倾析式离心机，包括：可旋转碗（3）; 螺旋形涡旋传送器，其以不同的转速在碗内同轴旋转，螺旋形涡卷包括承载多个翼片（8）的毂，其径向外边缘靠近碗（3）的内壁，使得在使用时，固体由输送机滚动到碗的一端的固体排出口（11），分离的液体从碗的另一端的液体排出口（5）排出。输送轮毂（6）在洗涤区（17）中承载多个喷嘴，用于将清洗流体供给由输送机向固体排出口（11）滚动的固体。输送轮毂还在输送机的喷嘴（18）和相邻的叶片（8）的区域内承载有叶片（22），用于将来自喷嘴（18）的流体液滴引导到所述固体上。

10. 发明公开

EP0166582A2 Method of separating solid particles from a liquid 失效
标题翻译：一种用于固体颗粒从液体中分离过程。
公开(公告)号：EP0166582A2
公开(公告)日：1986-01-02
申请号：EP85304432.9
申请日：1985-06-20
申请人： THOMAS BROADBENT & SONS LIMITED
发明人： Grimwood, Geoffrey Luther , Brook, Geoffrey Graham
IPC分类号： B04B1/20
CPC分类号： B04B15/12 , B04B1/20 , B04B3/04
摘要： A method of separating solid particles from the liquid constituent of a slurry, containing solids having a «wide» particle size distribution, that is, a size distribution wherein the equivalent diameter of particles in the slurry ranges between at least 15 microns and 150 microns. The method uses a screen bowl centrifuge and comprises:

(a) establishing a bed of solids on the screen of the centrifuge whose maximum radial thickness is greater than 15 times the mean particle equivalent diameter of said solids in the slurry;
(b) operating the scroll of the centrifuge at a speed within the range of 0.5 to 10% of the bowl speed; and
(c) returning at least a portion of the solids contaminated centrate from the centrifuge to the interior of the screen section of the bowl so as to deposit the centrate on the solids passing over the screen section at or adjacent a region of maximum solids thickness.

A portion of the centrate from the centrifuge, contaminated with the fine solids, is returned to the interior of the screen section of the bowl by way of an auxiliary feed pipe. The pipe is so arranged as to cause the centrate to be deposited on the solids passing over the screen section.

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