公开(公告)号：US5170891A

公开(公告)日：1992-12-15

申请号：US763303

申请日：1991-09-20

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/28

CPC classification number: B03C1/284

Abstract: The improved self-cleaning magnetic separator includes a tube and a conveying flight spiralled about the tube. The separator has a magnetic material collecting portion, a magnetic material discharge portion and a bar-like magnet providing a lobe-like magnetic field. The field is of generally uniform strength along the material collecting portion and diminishes in strength along the discharge portion. In a highly preferred arrangement, the magnet is stationary and the tube and flight rotate with respect to it. Because the magnetic material is "trapped" by the stationary field, such rotation causes the magnetic material to be urged by the flight from the collecting portion to the discharge portion. The field, of diminished strength in the discharge portion, permits magnetic material to fall away from the discharge portion. In one arrangement, the magnet has a shunt for diminishing the field strength to a very low value, zero or only slightly above, thereby configuring the separator for use even with very finely divided magnetic material.

Abstract translation: 改进的自清洁磁选机包括管和围绕管螺旋的输送螺旋。 隔膜具有磁性材料收集部分，磁性材料排出部分和提供叶状磁场的棒状磁体。 该场沿着材料收集部分具有大致均匀的强度，并且沿着排出部分减小强度。 在非常优选的布置中，磁体是静止的并且管和飞行器相对于其旋转。 由于磁性材料被静止场“捕获”，所以这种旋转使得磁性材料被从收集部分到排放部分的飞行物推动。 放电部分强度降低的场地允许磁性材料从放电部分脱落。 在一种布置中，磁体具有用于将场强降低到非常低的值，即零或仅略高于的分流器，从而构成即使用非常细的磁性材料使用的隔板。

公开(公告)号：US4264887A

公开(公告)日：1981-04-28

申请号：US963420

申请日：1978-11-24

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: H01F7/20

CPC classification number: H01F7/206

Abstract: A coil for an electromagnet is made up of a spiral wound, anodized aluminum strip, and a strip of magnetic material wound in interleaved fashion with the central portion of the aluminum strip. The magnetic material strip is electrically insulated from the aluminum strip and the aluminum strip is electrically energized to excite the magnet. The magnetic material strip is wider than the aluminum strip and extends beyond both opposite edges of the aluminum strip to make direct contact with the coil housing and a pole shoe. Electrical insulating material fills the cavity defined by the magnetic strip projecting beyond the edges of the aluminum strip.

Abstract translation: 用于电磁体的线圈由螺旋卷绕的阳极氧化铝条和与铝条的中心部分交错缠绕的磁性材料条构成。 磁性材料带与铝带电绝缘，并且铝带被电激励以激励磁体。 磁性材料条比铝条宽，并延伸超过铝条的两个相对边缘，以直接接触线圈外壳和极靴。 电绝缘材料填充由超过铝带边缘突出的磁条限定的空腔。

公开(公告)号：US6104271A

公开(公告)日：2000-08-15

申请号：US387129

申请日：1999-08-31

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/28 ,  H01F7/02

CPC classification number: B03C1/28 ,  H01F7/0257 ,  H01F7/0268

Abstract: A composite magnet having a steel back plate on which an inner section of a first magnetic material having a high residual magnetic strength and an energy product greater than 25 million and preferably 35 million G-Oe or greater is positioned. Although possessing such high residual magnetic strength, the first magnetic material contained in the inner section comprises less than 1/8 the entire volume of the composite magnet. A barrier surrounds the inner section, and an outer section of a second magnetic material abuts the barrier and surrounds the sides of the first magnetic material. Such second section of magnetic material has a low residual magnetic strength (i.e., 3,800-4,000 G), and an energy product greater than 3 million G-Oe.

Abstract translation: 一种具有钢背板的复合磁体，其上具有高残余磁强度的第一磁性材料的内部和能量乘积大于25百万，优选为3500万G-Oe以上的复合磁体。 虽然具有这样高的残余磁强度，但是包含在内部部分中的第一磁性材料包括复合磁体的整个体积小于+ E，fra 1/8 + EE。 屏障围绕内部部分，第二磁性材料的外部部分邻接屏障并围绕第一磁性材料的侧面。 这种磁性材料的第二部分具有低的残余磁强度（即3800-4,000G），能量乘积大于300万G-Oe。

公开(公告)号：US4686034A

公开(公告)日：1987-08-11

申请号：US904774

申请日：1986-09-05

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/22 ,  B07C9/00

CPC classification number: B03C1/22 ,  Y10S209/93

Abstract: A solid waste magnetic separator having a material transport belt, a mechanism for generating a magnetic field, and a mechanism for supporting the belt so magnetic materials can be attracted to the belt and transported therewith as the belt moves through the magnetic field. The magnetic field generating mechanism comprises at least two magnetic assemblies aligned relative to each other in the direction of travel of the belt. A ferromagnetic pole shoe is disposed between the belt and the magnetic assemblies, thereby creating a relatively uniform combined magnetic field along the magnetic assemblies so that heavy magnetic materials attracted to the belt remain attracted to the belt as the belt moves through the combined magnetic field.

Abstract translation: 具有材料输送带的固体废物磁选机，用于产生磁场的机构，以及用于支撑带的机构，使得磁性材料可以随着皮带移动通过磁场而被吸引到皮带并随其传送。 磁场产生机构包括至少两个在带的行进方向上相对于彼此对准的磁性组件。 铁磁极靴设置在带和磁性组件之间，从而沿着磁性组件产生相对均匀的组合磁场，使得当带移动通过组合磁场时，吸引到带的重磁性材料保持吸引到带上。

公开(公告)号：US5655664A

公开(公告)日：1997-08-12

申请号：US740616

申请日：1996-10-31

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/247 ,  B03C1/00

CPC classification number: B03C1/247 ,  B03C2201/20

Abstract: The disclosed eddy-current separator has several new features. One includes a magnet assembly which is metal-sleeved for protecting the magnets from impact by particles or objects piercing the waste-carrying conveyor belt with which the separator is used. A low-rotating-speed epoxy-layered shell surrounds the sleeve for additional protection. A conveying extension carries ferrous "fines" from the conveyor into the receptacle used to collect waste from which non-ferrous material has been separated. Such extension permits such fines to be under the substantial influence of the magnet assembly over an arc well less than 180.degree.. The conveyor belt uses relatively-closely-spaced cleats of reduced height to reduce the "loading" of an individual cleat with potentially-piercing ferrous fines. A two pole magnet assembly may be used and/or a magnet assembly in which the magnet pole faces are curved for air gap reduction.

Abstract translation: 所公开的涡流分离器具有几个新特征。 一个包括一个金属套筒的磁体组件，用于保护磁体免受使用分离器的废物输送传送带刺穿的颗粒或物体的冲击。 围绕套筒的低转速环氧树脂层壳体进行额外的保护。 输送延伸件将铁质“细粉”从输送机运送到用于收集已经分离有色金属材料的废物的容器中。 这种延伸允许这样的细粉在小于180°的电弧井下在磁体组件的实质影响下。 传送带使用相对紧密间隔的高度减小的防滑钉，以减少具有潜在穿孔铁质细粒的个别防滑板的“装载”。 可以使用两极磁体组件和/或磁体组件，其中磁极面弯曲以减少气隙。

公开(公告)号：US4867869A

公开(公告)日：1989-09-19

申请号：US128148

申请日：1987-12-03

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/28

CPC classification number: B03C1/284

Abstract: A grate magnet apparatus comprising a frame defining an opening adapted to have material to be separated pass therethrough, a non-magnetic tube supported by the frame and extending across the opening, and an elongated magnetic member removably housed in the tube, whereby magnetic material is attracted to the tube when the magnetic member is housed in the tube and is released from the tube when the member is removed from the tube. The non-magnetic tubes and magnet members are connected both for joint movement to be withdrawn from the path of the flowing material and then for relative movement to release magnetic material from the non-magnetic tube.

Abstract translation: 一种格栅磁铁装置，包括限定适于具有待分离材料的开口的框架，由框架支撑并延伸穿过开口的非磁性管，以及可移除地容纳在管中的细长磁性构件，由此磁性材料是 当磁性构件容纳在管中时被吸引到管上，并且当构件从管中移除时从管中释放。 非磁性管和磁体构件连接起来用于接合运动以从流动材料的路径中取出，然后进行相对运动以从非磁性管释放磁性材料。

公开(公告)号：US4008799A

公开(公告)日：1977-02-22

申请号：US611495

申请日：1975-09-08

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B65G15/30 ,  B03C1/16 ,  B65G15/32 ,  B65G15/36 ,  B65G15/44 ,  B65G15/58 ,  B65G15/42

CPC classification number: B65G15/44 ,  B65G15/32 ,  B65G2201/02

Abstract: Wear protection for a conveyor belt is provided by metal plates detachably connected to the belt along its length and located in the central area of the belt. The plates are constructed and arranged relative to each other to prevent foreign matter from becoming lodged between the plates and the belt surface. Cleats are provided on the plates.

Abstract translation: 传送带的磨损保护由金属板提供，金属板沿着其长度可拆卸地连接到带并且位于带的中心区域中。 这些板相对于彼此构造和布置，以防止异物卷入板和带表面之间。 板上设有夹板。

公开(公告)号：US4738367A

公开(公告)日：1988-04-19

申请号：US901294

申请日：1986-08-28

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/22 ,  B07C5/34

CPC classification number: B03C1/22 ,  Y10S209/93

Abstract: A magnetic separator comprising a plurality of relatively aligned magnetic field generators and a belt associated with the magnetic field generators and supported to move serially through the magnetic fields generated by the magnetic field generators. The magnetic field generators are spaced relative to each other in the direction of their relative alignment a distance sufficient to produce serial gaps between the magnetic fields generated such that magnetic articles attracted to the belt by one of the magnetic fields fall away from the belt at the gaps. The magnetic separator also comprises a conveyor below the belt and supported at the gaps to receive magnetic articles falling from one of the magnetic fields and to transport the fallen magnetic articles to the next magnetic field where the magnetic articles are again attracted to the belt.

Abstract translation: 一种磁分离器，包括多个相对排列的磁场发生器和与磁场发生器相关联的带，并被支撑以串联地移动通过由磁场发生器产生的磁场。 磁场发生器在其相对对准的方向上相对于彼此间隔开足够的距离，以产生所产生的磁场之间的串联间隙，使得由磁场中的一个吸引到带的磁性物品在带 差距 磁选机还包括位于皮带下方的输送机，并在间隙处支撑以接纳从一个磁场落下的磁性制品，并将下落的磁性物品运输到磁性物品再次吸引到皮带的下一个磁场。

公开(公告)号：US4428475A

公开(公告)日：1984-01-31

申请号：US326566

申请日：1981-12-02

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/16 ,  B65G15/32 ,  B65G15/58

CPC classification number: B03C1/16 ,  B65G15/32 ,  B65G2201/06 ,  Y10S209/93

Abstract: A wear protected belt comprising an elongated, generally flexible belt having a plurality of plates attached to the face of the belt. The plates extend across the belt at an angle to its longitudinal axis, and substantially cover a longitudinal portion of the belt. Each plate has a first plate portion, or rib, which projects laterally from the face of the belt. Attached to the rib is a second plate portion, or top which projects from the rib and extends over a portion of the belt parallel but spaced from the face of the belt. Disposed between the top of the plate and the belt surface is a shock absorbing bar means, or bar. When heavy objects impact the top of the plate, the top of the plate engages the bar and the bar absorbs the force of the impact. The bar also resists shearing or bending forces on the plate by bearing against the top of the plate and thereby resisting turning motions on the plate.

Abstract translation: 一种磨损保护带，包括细长的，通常柔性的带，其具有连接到带的表面上的多个板。 板沿其纵向轴线以一定角度延伸穿过带，并且基本上覆盖带的纵向部分。 每个板具有从带的表面横向突出的第一板部分或肋。 连接到肋的是第二板部分或顶部，其从肋突出并且延伸超过带的一部分平行但与带的表面隔开。 设置在板的顶部和带表面之间的是减震杆装置或杆。 当重物撞击板的顶部时，板的顶部接合杆，杆吸收冲击力。 该杆还通过抵靠板的顶部抵抗板上的剪切或弯曲力，从而抵抗板上的转动。

公开(公告)号：US3935947A

公开(公告)日：1976-02-03

申请号：US443953

申请日：1974-02-20

Applicant: William T. Barrett

Inventor： William T. Barrett

IPC: B03C1/02 ,  B03C1/16 ,  B03C1/22 ,  B07C5/344

CPC classification number: B03C1/22 ,  Y10S209/93 ,  Y10S209/931

Abstract: A magnetic separator includes a continuous belt revolving in a closed path in association with a supply conveyor carrying magnetic and non-magnetic refuse. A magnetic assembly at the belt includes, in the direction of belt travel, a pick-up magnet, a transfer magnet, and a discharge magnet. A curve is provided in the path of belt travel, other than at its head or end pulley, and the magnetic field is generated upstream and downstream of the belt curve and at the curve. The field from the pick-up magnet extends along the belt to the belt curve, the field from the transfer magnet is at the curve, and the discharge magnet is on the opposite side of the curve spaced from the transfer magnet to provide a gap in the magnetic field between the transfer and discharge magnet. Magnetic material from the burden on the supply conveyor is attracted to the belt and non-magnetic material falls away. The magnetic material so attracted travels with the belt into the gap in the magnetic field at which point it is released and falls away from the belt. The released magnetic material follows a trajectory which carries it into the field of the discharge magnet where it is again attracted to the belt. This release and re-attraction movement tends to dislodge any non-magnetic material initially drawn to the belt with the magnetics. In the area of the discharge magnet the magnetic material is moved completely out of the magnetic field whereupon it falls away from the belt for collection. The discharge magnet is adjustable relative to the transfer magnet in the direction of belt travel to vary the length of the gap.The conveyor belt includes a plurality of cleats projecting from the belt surface and spaced along the belt length. Replaceable wear pads are attached to the belt surface and to the cleat surfaces facing in the direction of belt travel.

Abstract translation: 磁性分离器包括与带有磁性和非磁性垃圾的供给传送器相关联的在闭合路径中旋转的连续带。 皮带上的磁性组件包括拾取磁体，传送磁体和放电磁体，沿皮带行进方向。 在皮带行进的路径中提供曲线，而不是在其头部或端部皮带轮处，并且在皮带曲线的上游和下游产生磁场。 来自拾取磁体的磁场沿着带延伸到带曲线，来自传送磁体的磁场处于曲线，并且放电磁体位于与传送磁体隔开的曲线的相对侧上，以提供间隙 传输和放电磁铁之间的磁场。 磁带材料由供给输送带上的负担吸引到皮带上，非磁性材料掉落。 磁性材料如此吸引与皮带一起移动到磁场中的间隙中，此时它被释放并从皮带上脱落。 释放的磁性材料遵循将其进入放电磁体的磁场的轨迹，在该磁场中再次被吸引到磁带。 这种释放和再吸引运动趋向于移除最初用磁性吸引到皮带的任何非磁性材料。 在放电磁体的区域中，磁性材料完全离开磁场，由此它从皮带上脱落收集。 放电磁体相对于传送磁体在带行进方向上是可调节的，以改变间隙的长度。