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公开(公告)号：EP3510287A1
公开(公告)日：2019-07-17
申请号：EP17777964.2
申请日：2017-09-06
Applicant: FLSmidth A/S
Inventor： ECHEVERRI, Luis Fernando , KIDD, Klayton
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公开(公告)号：EP3759387A1
公开(公告)日：2021-01-06
申请号：EP19713866.2
申请日：2019-03-01
Applicant: FLSmidth A/S
Inventor： ECHEVERRI, Luis Fernando
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公开(公告)号：WO2019202499A1
公开(公告)日：2019-10-24
申请号：PCT/IB2019/053127
申请日：2019-04-16
Applicant: FLSMIDTH A/S
Inventor： ECHEVERRI, Luis Fernando , FRATER, John Semple
Abstract: A centrifugal seal system for a slurry pump (1) is provided with an adjustable wear ring (2) having an outer diameter (18) that is 1.3 to 2.1, and more preferably between 1.5 and 1.9 times the inlet diameter (17) of a suction orifice (33). The adjustable wear ring (2) acts in combination with a centrifugal expeller (5) that generates a differential backpressure to seal the slurry pump (1) and prevent leakage of the fluid pumped to the surroundings. The centrifugal expeller (5) has a diameter (12) which is 75 to 95%, and more preferably, between 82% and 90% of the diameter (19) of the impeller (7). The slurry pump (1) may comprise a seal clamp (44), one or more compression packing rings (47), and an axially-floating cartridge (48) comprising one or more lip seals (46) to prevent leakage when the slurry pump (1) is stopped.
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公开(公告)号：EP2627427B1
公开(公告)日：2016-07-27
申请号：EP11833491.1
申请日：2011-10-14
Applicant: FLSmidth A/S
Inventor： ECHEVERRI, Luis Fernando
CPC classification number: B01D21/2411 , B01D21/06 , B01D21/2427
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公开(公告)号：WO2022249056A1
公开(公告)日：2022-12-01
申请号：PCT/IB2022/054843
申请日：2022-05-24
Applicant: FLSMIDTH A/S
Inventor： ECHEVERRI, Luis Fernando
Abstract: A variable geometry infeed shelf (23) is configured to be installed within a tank pump (1) and provides supplemental internal rigid stationary fluid boundary surfaces within a cylindrical tank assembly (7) of the tank pump (1). The variable 5 geometry infeed shelf (23) promotes uniform distribution of feeding flow around the entire volume of the tank, favouring retention time and reducing bypassing and local peak vertical velocities of a tank infeed flow path (45) in a vertical direction (Z1) within the tank assembly (7). By virtue of its design, the variable geometry infeed shelf (23) reduces stagnation zones, air entrainment and turbulence within 10 the tank assembly (7), thereby improving pumping efficiency of a centrifugal pump (20) operating within the tank assembly (7).
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Patent Agency Ranking
公开(公告)号：EP4337866A1
公开(公告)日：2024-03-20
申请号：EP22729787.6
申请日：2022-05-24
Applicant: FLSmidth A/S
Inventor： ECHEVERRI, Luis Fernando
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公开(公告)号：EP2627427A1
公开(公告)日：2013-08-21
申请号：EP11833491.1
申请日：2011-10-14
Applicant: FLSmidth A/S
Inventor： ECHEVERRI, Luis Fernando
CPC classification number: B01D21/2411 , B01D21/06 , B01D21/2427
Abstract: A feedwell for a thickener/clarifier includes a feedwell body (40), a feedwell inlet (41), a sidewall (42), and a discharge opening (48). At least one infeed conduit (21) is connected at an upstream end of the feedwell inlet (41). The sidewall (42) has a non-cylindrical curved peripheral surface defining a radially-outermost fluid boundary surface for an influent stream (60). The non-cylindrical curved peripheral surface may include portions of a volute surface, coil surface, helical surface, compound curve surface, spline curve surface, or spiral surface. Feedwells according to the invention provide a uniform settling tank feeding flux around exiting portions of the feedwell, control velocity gradients and shear rates, protect flocculated aggregates, normalize sedimentation conditions in the settling tank, and prevent large local accelerations and flow non-uniformities.
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公开(公告)号：WO2019167024A1
公开(公告)日：2019-09-06
申请号：PCT/IB2019/051683
申请日：2019-03-01
Applicant: FLSMIDTH A/S
Inventor： ECHEVERRI, Luis Fernando
Abstract: An internal inclined sub-channel, or ramp device (24), for suspending and/or re-suspending solids within a pipeline system during transport of slurry may be provided to various components of the slurry transport system to control or reduce localized and severe wear that often occurs in slurry pumps. Embodiments of the ramp device (24) may be adequately configured to alter slurry multiphase flow patterns and/or disrupt traditional moving / sliding bed regime phenomena. Embodiments of the ramp device may be adequately configured to raise coarse abrasive particulates from bottom portions of a slurry pipe section - where a higher concentration and/or a larger presence of coarser particles may be present. Embodiments of the ramp device may be installed in proximity of and/or upstream of slurry pumps to prevent occurrences of severe localized wear at the inner diameter of the pump suction side wall around the bottom or 6 o'clock position.
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公开(公告)号：WO2018047072A1
公开(公告)日：2018-03-15
申请号：PCT/IB2017/055361
申请日：2017-09-06
Applicant: FLSMIDTH A/S
Inventor： ECHEVERRI, Luis Fernando , KIDD, Klayton
Abstract: A pressure relief device (1) for a centrifugal pump (50) comprising a shear pin(3), a piston (4) and a rod (6), the rod (6) having a first end (6a) and a second end (6b) and the piston (4) having a top face (4a) and a bottom face (4b), the second end (6b) of the rod (6) connected to the top face (4a) of the piston (4), the shear pin (3) disposed through the rod (6) and connected to the piston (4) via the rod (6). The piston (4) is disposed on the seal chamber (11) such that the bottom face (4b) of the piston (4) is directly exposed to the slurry located inside the seal chamber (11) and the top face (4a) of the piston (4) is located outside the seal chamber (11). The piston (4) is configured to apply a pressure proportional shear force to the shear pin (3). The shear pin (3) is configured to break or shear when the pressure proportional shear force exceeds a limit corresponding to the effective relief pressure such that the piston (4) can assume a retracted position and at least a portion of the slurry can exit the inside of the centrifugal pump (50).
Abstract translation: 一种用于离心泵（50）的泄压装置（1），其包括剪切销（3），活塞（4）和杆（6），杆（6）具有第一 （6）的第二端（6b），所述活塞（4）具有顶面（4a）和底面（4b），所述杆（6）的所述第二端（6b） （4）的活塞（4a），安装穿过杆（6）并通过杆（6）连接到活塞（4）的剪切销（3）。 活塞（4）设置在密封室（11）上，使得活塞（4）的底面（4b）直接暴露于位于密封室（11）内部的浆料和 活塞（4）位于密封室（11）的外部。 活塞（4）构造成向剪切销（3）施加压力成比例的剪切力。 当压力成比例的剪切力超过对应于有效安全压力的极限时，剪切销（3）被配置为破坏或剪切，使得活塞（4）可以呈现缩回位置，并且浆料的至少一部分可以离开 在离心泵（50）的内部。
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公开(公告)号：WO2012051536A1
公开(公告)日：2012-04-19
申请号：PCT/US2011/056369
申请日：2011-10-14
Applicant: FLSMIDTH A/S , ECHEVERRI, Luis Fernando
Inventor： ECHEVERRI, Luis Fernando
CPC classification number: B01D21/2411 , B01D21/06 , B01D21/2427
Abstract: A feedwell for a thickener/clarifier includes a feedwell body (40), a feedwell inlet (41), a sidewall (42), and a discharge opening (48). At least one infeed conduit (21) is connected at an upstream end of the feedwell inlet (41). The sidewall (42) has a non-cylindrical curved peripheral surface defining a radially-outermost fluid boundary surface for an influent stream (60). The non-cylindrical curved peripheral surface may include portions of a volute surface, coil surface, helical surface, compound curve surface, spline curve surface, or spiral surface. Feedwells according to the invention provide a uniform settling tank feeding flux around exiting portions of the feedwell, control velocity gradients and shear rates, protect flocculated aggregates, normalize sedimentation conditions in the settling tank, and prevent large local accelerations and flow non-uniformities.
Abstract translation: 用于增稠器/澄清器的进料井包括进料井体（40），进料井入口（41），侧壁（42）和排出口（48）。 至少一个进料管道（21）在进料井入口（41）的上游端连接。 侧壁（42）具有限定用于流入物流（60）的径向最外侧的液体边界面的非圆柱形弯曲外周表面。 非圆柱形弯曲外周表面可以包括蜗壳表面，线圈表面，螺旋表面，复合曲线表面，花键曲面或螺旋表面的部分。 根据本发明的进料口提供均匀的沉淀池，在供给井的出口部分周围提供通量，控制速度梯度和剪切速率，保护絮凝的聚集体，使沉淀池中的沉淀条件正常化，并防止大的局部加速度和流动不均匀性。
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