SCREEN Russian patent published in 2004 - IPC

FIELD: construction industry, in particular, equipment for separation by size of materials tending to sticking and freezing onto screening surface members.

SUBSTANCE: screen has screening surface composed of hollow longitudinal members, which are connected by feeding device with working fluid source and drive. Longitudinal members are composed of two parts connected rigidly and detachably with the use of stiffening members. One of parts is upper cover made from gas and liquid permeable material. Lower part is pole made from high-density strong material. Width of cover exceeds width of pole. Hollow members are tightly connected with their ends through tightening member to hollow collectors, which are joined through hollow suspenders, hollow shaft and controlled valve to feeding device.

EFFECT: increased efficiency in screening and stabilized operating mode even with stuck on and frozen material under screening process on screening surface.

5 dwg