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公开(公告)号：US20240326095A1
公开(公告)日：2024-10-03
申请号：US18742131
申请日：2024-06-13
申请人： Derrick Corporation
CPC分类号： B07B1/4618 , B01D29/012 , B07B1/46 , B07B1/4609 , B07B1/4645 , B07B1/4654 , B07B1/4663 , B07B1/469 , B29C45/0001 , B29C65/16 , B29D28/00 , B07B1/48 , B29K2075/00
摘要： A disclosed screening apparatus includes a subgrid, and a screen element attached to the subgrid via laser welding at a plurality of attachment positions such that, under vibrational excitation, the screen element has a pre-determined profile of vibrational motion relative to the subgrid. The screen element may be attached at a maximal number of attachment locations to the subgrid to minimize relative motion of the screen element and the subgrid under vibrational excitation, or the screen element may be attached a sub-set of the maximal number of attachment locations to allow vibrational motion of the screen element relative to the subgrid. A disclosed method may include attaching a plurality of screen elements to a respective plurality of subgrids, attaching the plurality of subgrids to one another to form a screening pre-assembly, and cutting edges of the screening pre-assembly to form the screen assembly having a perimeter with a pre-determined shape.
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公开(公告)号：US20240131557A1
公开(公告)日：2024-04-25
申请号：US18545243
申请日：2023-12-19
申请人： Derrick Corporation
CPC分类号： B07B1/36 , B07B1/28 , B07B1/46 , B07B1/48 , B07B13/16 , B07B2201/04 , B07B2230/01
摘要： Vibratory screening machines that include stacked screening deck assemblies are provided. In some embodiments, at least one of the vibratory screening machines can include an outer frame, an inner frame connected to the outer frame, and a vibratory motor assembly secured to the inner frame for vibrating the inner frame. A plurality of screen deck assemblies can be attached to the inner frame in a stacked arrangement, each configured to receive replaceable screen assemblies. The screen assemblies can be secured to respective ones of the plurality of the screen deck assemblies by tensioning the screen assemblies in a direction that a material to be screened flows across the screen assemblies. An undersized material discharge assembly can be configured to receive materials that pass through the screen assemblies, and an oversized material discharge assembly can be configured to receive materials that pass over the screen assemblies.
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3.发明公开公开(公告)号：US20230234076A1
公开(公告)日：2023-07-27
申请号：US17988549
申请日：2022-11-16
申请人： Derrick Corporation
摘要： The present disclosure relates to baffle assemblies, nozzles, and related systems and methods for handling solid discharges of centrifuge separators. In one implementation, a two-piece baffle assembly configured to be positioned around discharge nozzles of a centrifuge separator includes a first segment and a second segment configured to attach to the first segment. The first segment includes a first baffle, a second baffle, and a first discharge gap formed between the first baffle and the second baffle. The second segment includes a frame having an arcuate shape, a third baffle extending inwardly relative to the arcuate frame, a fourth baffle extending inwardly relative to the arcuate frame, and a second discharge gap formed between the third baffle and the fourth baffle.
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公开(公告)号：US11654380B2
公开(公告)日：2023-05-23
申请号：US17537167
申请日：2021-11-29
申请人： DERRICK CORPORATION
CPC分类号： B01D33/0376 , B01D33/37 , B07B1/46 , B07B13/16 , B07B2201/04
摘要： Vibratory screening machines that include stacked screening deck assemblies are provided. In some embodiments, at least one of the vibratory screening machines may include an outer frame, an inner frame connected to the outer frame, and a vibratory motor assembly secured to the inner frame for vibrating the inner frame. A plurality of screen deck assemblies may be attached to the inner frame in a stacked arrangement, each configured to receive replaceable screen assemblies. The screen assemblies may be secured to respective ones of the plurality of the screen deck assemblies by tensioning the screen assemblies in a direction that a material to be screened flows across the screen assemblies. An undersized material discharge assembly may be configured to receive materials that pass through the screen assemblies, and an oversized material discharge assembly having a deflector may be configured to receive materials that pass over the screen assemblies.
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公开(公告)号：US11628474B2
公开(公告)日：2023-04-18
申请号：US16503331
申请日：2019-07-03
申请人： Derrick Corporation
摘要： A vibratory screening machine includes a primary screening area and a pre-screening assembly including a frame and screen assemblies. The screen assemblies are secured to the frame and form a pre-screening surface. The frame is attached to the vibratory screening machine such that the concave pre-screening surface is above the primary screening area.
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公开(公告)号：US11426766B2
公开(公告)日：2022-08-30
申请号：US17086761
申请日：2020-11-02
申请人： Derrick Corporation
发明人： Keith Wojciechowski
摘要： Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.
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公开(公告)号：US11344917B2
公开(公告)日：2022-05-31
申请号：US16794349
申请日：2020-02-19
申请人： Derrick Corporation
摘要： A screening machine includes wall members, screen assembly guide members, a screen assembly and a compression assembly. The screen assembly includes a frame with a plurality of side members and a screen supported by the frame. The compression assembly is attached to at least one wall member and forms the screen assembly into a concave shape.
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公开(公告)号：US20220088638A1
公开(公告)日：2022-03-24
申请号：US17542927
申请日：2021-12-06
申请人： Derrick Corporation
IPC分类号： B07B1/18 , B07B1/46 , B01D33/03 , B01D33/74 , B29C45/00 , B29D28/00 , B01D29/05 , B01D29/19 , B01D29/21 , B01D29/90 , B01D29/92 , B01D39/16
摘要： Embodiments of the present disclosure include a screen basket apparatus includes a substantially vertical cylindrical frame and a synthetic screening surface secured to the frame. The synthetic screening surface may be configured to separate carbon or resin from a slurry of a carbon-in-leach, carbon-in-pulp, resin-in-leach, or resin-in-pulp material as fluid flows from outside to inside the screen basket apparatus such that carbon or resin is retained on an external surface of the synthetic screening surface. The cylindrical frame may be a grid frame and the synthetic screening surface may include a plurality of replaceable screen assemblies attached to the grid frame. The grid frame may include a plurality of openings and each of the plurality of openings is configured to receive a respective one of the plurality of replaceable screen assemblies. The synthetic screening surface may include injected molded thermoplastics, thermoset polyurethanes, and/or other polymeric materials.
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公开(公告)号：US11198155B2
公开(公告)日：2021-12-14
申请号：US16028013
申请日：2018-07-05
申请人： Derrick Corporation
摘要： Screening members, screening assemblies, methods for fabricating screening members and assemblies and methods for screening materials are provided for vibratory screening machines that incorporate the use of injection molded materials. Use of injection molded screen elements provide, inter alia, for: varying screening surface configurations; fast and relatively simple screen assembly fabrication; and a combination of outstanding screen assembly mechanical and electrical properties, including toughness, wear and chemical resistance. Embodiments of the present invention use a thermoplastic injection molded material.
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公开(公告)号：US11185801B2
公开(公告)日：2021-11-30
申请号：US16460764
申请日：2019-07-02
申请人： Derrick Corporation
摘要： Vibratory screening machines that include stacked screening deck assemblies are provided. In some embodiments, at least one of the vibratory screening machines may include an outer frame, an inner frame connected to the outer frame, and a vibratory motor assembly secured to the inner frame for vibrating the inner frame. A plurality of screen deck assemblies may be attached to the inner frame in a stacked arrangement, each configured to receive replaceable screen assemblies. The screen assemblies may be secured to respective ones of the plurality of the screen deck assemblies by tensioning the screen assemblies in a direction that a material to be screened flows across the screen assemblies. An undersized material discharge assembly may be configured to receive materials that pass through the screen assemblies, and an oversized material discharge assembly having a deflector may be configured to receive materials that pass over the screen assemblies.
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