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1. WO2006124815 - DUAL HARDNESS COMPOSITE SCREEN FRAME

Publication Number WO/2006/124815
Publication Date 23.11.2006
International Application No. PCT/US2006/018800
International Filing Date 15.05.2006
IPC
B01D 35/20 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
35Filtering devices having features not specifically covered by groups B01D24/-B01D33/, or for applications not specifically covered by groups B01D24/-B01D33/230; Auxiliary devices for filtration; Filter housing constructions
20Vibrating the filters
CPC
B07B 1/06
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
06Cone or disc shaped screens
B07B 1/4609
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
46Constructional details of screens in general; Cleaning or heating of screens
4609constructional details of screening surfaces or meshes
B07B 1/4645
BPERFORMING OPERATIONS; TRANSPORTING
07SEPARATING SOLIDS FROM SOLIDS; SORTING
BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
1Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
46Constructional details of screens in general; Cleaning or heating of screens
4609constructional details of screening surfaces or meshes
4645Screening surfaces built up of modular elements
Applicants
  • M-I L.L.C. [US]/[US] (AllExceptUS)
  • CADY, Eric [US]/[US] (UsOnly)
  • CARR, Brian [US]/[US] (UsOnly)
Inventors
  • CADY, Eric
  • CARR, Brian
Agents
  • BALLEW, Kimberly, D.
Priority Data
11/128,78713.05.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DUAL HARDNESS COMPOSITE SCREEN FRAME
(FR) STRUCTURE DE TAMIS COMPOSITE A DOUBLE INDICE DE DURETE
Abstract
(EN)
A screen assembly for a vibratory separator includes a composite screen frame that has a rigid support section formed from a polymer material and a cushioned strain relief zone. The strain relief zone is located along the inner periphery of the rigid support section and provides support at the interface between the screen frame and the screen cloth. The strain relief zone may extend along an inner peripheral wall of the rigid support section. The rigid support section may include a flange and the strain relief zone may extend around the rigid support section to encapsulate the flange in addition to providing additional support to the screen cloth. The rigid support section and the strain relief zone may be co-formed in a molding process. Alternatively the rigid support section may be a molded member and the strain relief zone may be an extrusion to be assembled to the rigid support member. The screen cloth is affixed to the peripheral frame. The screen frame may include an internal support frame having a rigid support section defining a plurality of openings, each of which has a strain relief zone around its periphery to provide cushioned support to the screen cloth across the opening.
(FR)
L'invention concerne un tamis destiné à un séparateur vibrant comprenant une structure de tamis composite comportant une section de support rigide constituée d'un polymère et une zone de réduction des tensions souple. Cette zone de réduction des tensions est située le long du pourtour interne de la section de support rigide et constitue un support entre la structure de tamis et la toile de tamis. La zone de réduction des tensions peut s'étendre le long de la paroi interne de la section de support rigide. Cette section de support rigide peut comprendre une bride et la zone de réduction des tensions peut s'étendre autour de la section de support rigide de façon à envelopper la bride en plus de fournir un support supplémentaire pour le tissu de tamis. La section de support rigide et la zone de réduction des tensions peuvent être formées ensemble dans un processus de moulage. Par ailleurs, la section de support rigide peut être constituée d'un élément moulé et la zone de réduction des tensions peut être constituée d'un élément extrudé destiné à être couplé à l'élément de support rigide. Le tissu de tamis est fixé à la structure. La structure de tamis peut comprendre une structure de support interne comportant une section de support rigide formant une pluralité d'ouvertures comportant chacune une zone de réduction des tensions fournissant un support souple au tissu de tamis au niveau de l'ouverture.
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