Abstract:
A method for screening with a screen assembly (10), the screen assembly comprising screening material having non-flat areas of screening material therein, the non-flat areas of screening material between lines of glue (13) gluing together a plurality of layers (11, 12) of screening material, the plurality of glued-together layers of screening material secured to a frame, the method comprising the steps of mounting the screen assembly (10) on a vibratory separator, the vibratory separator located in an environment at an ambient temperature, vibrating the screen assembly with the vibratory separator for a period of time, feeding material to be treated onto the screen assembly, the material to be treated at a material temperature above the ambient temperature, the period of time of such a temporal length and the material temperature of such a temperature to effect flattening of the non-flat areas of screening material.
Abstract:
A method for making a screen for a shale shaker, the screen comprising a first layer and second layer of screening material, the first layer having a series of shute wires and a series of warp wires, the second screen having a series of shute wires and a series of warp wires, the method comprising the steps of selecting the first and second layers by wire count ratio to obtain alignment of a number of the warp wires of the first layer with a number of warp wires wires of the second layer and alignment of a number of shute wires of the first layer with a number of shute wires of the second layer.
Abstract:
A method for making a screen assembly (78) for a vibratory separator, the method comprising sewing together with sewing material at least two layers (83, 84) of fine screening material, placing said sewn-together at least two layers of fine screening material in a heating apparatus, placing a coarse mesh layer adjacent the at least two layers of screening material on the heating apparatus, placing adjacent the coarse mesh layer (82) a support (80) with heat activated material thereon for adhering the support to the coarse mesh layer (82), and heating the coarse mesh layer (82), the at least two layers (83, 84) of fine screening material, and the support (80) to adhere the support to the coarse mesh layer and the at least two layers of fine screening material to the coarse mesh layer.
Abstract:
An apparatus for separating material, said apparatus comprising a shale shaker and a screen assembly, said shale shaker having a mounting structure (450) on to which said screen assembly is releasably mountable, wherein one of said mounting structure (450) and said screen assembly has projecting member sized and configured so it is receivable in a corresponding hole or recess (452) in the other of said mounting structure and said screen assembly.
Abstract:
A method for making a screen for a vibratory separator, the method comprising applying glue in a glue pattern to at least one layer of screening material useful for screening fluid introduced to a vibratory separator, said applying done by powered moving mechanical glue application means. Preferably, the glue is heated moisture-curing hot melt glue, the method further comprising heating the glue. Advantageously, the method further comprises the step of spraying the screen to speed up the curing of the glue.The invention also relates to a screen and an apparatus for making a screen of the invention.
Abstract:
A screen and a method for m aking a screen for a shale shaker, the screen comprising a first layer and second layer of screening material, the first layer having a series of shute wires and a series of warp wires, the second screen having a series of shute wires and a series of warp wires, the method comprising the steps of selecting the first and second layers by wire count ratio, and combin ing a panel and a support with the at least first and second layers of screening material, the panel having multiple spaced - apart openings, at le ast a portion of which having a central cross - member extending from a first side of an openi ng to a second side thereof.
Abstract:
Methods for making frames for screen assemblies for vibratory separators, and screen assemblies with such frames, the methods, in certain aspects, including making a frame support for a screen assembly for a vibratory separator ( e.g. but not limited to with robotic welding apparatus), moving the frame support to cleaning apparatus to clean the frame support, heating the frame support, moving the heated frame support to coating apparatus, coating the frame support in the coating apparatus with protective material, allowing the coated frame support to cool so that the protective material sets, moving of the frame support in one aspect done by mechanical movement apparatus; and, in certain aspects, adding screening material to the frame to produce a screen assembly.
Abstract:
A method for manipulating screen assemblies in a vibratory separator, the method comprising the steps of positioning a first screen assembly in holding apparatus of a vibratory separator, connecting a second screen assembly to the first screen assembly and moving the first screen assembly by manipulating the second screen assembly. A screen assembly for a vibratory separator, the screen assembly comprising screening material, a support for supporting the screening material and interconnection apparatus on the support for releasably connecting the screen assembly to an adjacent screen assembly.
Abstract:
A vibratory separator for separating solids from a fluid comprising a screen container (101) and a vibrating apparatus characterised in that said screen container (101) comprises a plurality of spaced apart substantially vertically arranged screen assemblies (60;120). A screen assembly for use in a vertical orientation in a vibratory separator, the screen assembly (60;120) comprising two sides of screening material (61;60A;132) spaced to form a central hollow (101a). A screen assembly comprising a support (18;16;32;151) for supporting at least one layer of mesh (14;16a;31;212) arranged thereon, wherein said support has first portion (12;33;151) which is generally flat lying in a first plane and a second portion (16;18;34a;154) in a second plane characterised in that, said first plane is substantially horizontal and said second portion (16;18;34a;154) rises in said second plane at an angle of at least 45° to a height of at least five centimetres
Abstract:
A screen and a method for making a screen for a shale shaker, the screen comprising a first layer and second layer of screening material, the first layer having a series of shute wires and a series of warp wires, the second screen having a series of shute wires and a series of warp wires, the method comprising the steps of selecting the first and second layers by wire count ratio, and combining a panel (904) and a support (910) with the at least first and second layers of screening material, the panel having multiple spaced - apart openings (904a), at Ieast a portion of which having a central cross - member (904e) extending from a first side of an opening to a second side thereof.