Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like

BPERFORMING OPERATIONS TRANSPORTING B07Solids separation B07BSEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, OR SIFTING OR BY USING GAS CURRENTS OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL

B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like

B07B1/005Transportable screening plants B07B1/02Hand screens B07B1/04Stationary flat screens B07B1/06Cone or disc shaped screens B07B1/08Screens rotating within their own plate B07B1/10Screens in the form of endless moving bands B07B1/12Apparatus having only parallel elements B07B1/14Roller screens B07B1/145the material to be screened moving along the axis of the parallel elements B07B1/15using corrugated, grooved or ribbed rollers B07B1/155the rollers having a star shaped cross section B07B1/16the elements being movable and in other than roller form B07B1/18Drum screens B07B1/185provided with exchangeable sieve panels B07B1/20Stationary drums with moving interior agitators B07B1/22Revolving drums B07B1/24with fixed or moving interior agitators B07B1/26with additional axial or radial movement of the drum B07B1/28Moving screens not otherwise provided for B07B1/282their jigging movement being a closed or open curvilinear path in a plane perpendicular to the plane of the screen and parrallel or transverse to the direction of conveyance B07B1/284with unbalanced weights B07B1/286with excentric shafts B07B1/288Tumbling screens B07B1/30jigging or moving to-and-fro within their own plane in or approximately in or transverse to the direction of conveyance B07B1/34jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen B07B1/343with mechanical drive elements other than electromagnets B07B1/346with electromagnets B07B1/36jigging or moving to-and-fro in more than one direction B07B1/38oscillating in a circular arc in their own plane plansifters B07B1/40Resonant vibration screens B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens B07B1/44Balancing devices B07B1/46Constructional details of screens in general Cleaning or heating of screens B07B1/4609constructional details of screening surfaces or meshes B07B1/4618Manufacturing of screening surfaces B07B1/4627Repairing of screening surfaces B07B1/4636Regulation of screen apertures B07B1/4645Screening surfaces built up of modular elements B07B1/4654Corrugated Screening surfaces B07B1/4663Multi-layer screening surfaces B07B1/4672Woven mesches B07B1/4681Meshes of intersecting, non-woven, elements B07B1/469Perforated sheet-like material B07B1/48Stretching devices for screens B07B1/485Devices for alternately stretching and sagging screening surfaces B07B1/49stretching more than one screen of screen section by the same or different stretching means B07B1/50Cleaning B07B1/52with brushes or scrapers B07B1/522with brushes B07B1/524the brushes being rotating B07B1/526with scrapers B07B1/528the scrapers being rotating B07B1/54with beating devices B07B1/55with fluid jets B07B1/56Heated screens B07B1/58heated by heated fluid B07B1/60heated by flame heating B07B1/62heated by direct electric heating