MECHANIZED ROOFING MATERIAL PRODUCTION LINE Russian patent published in 2001 - IPC

FIELD: construction materials. SUBSTANCE: production line has unwinding device, roll material impregnation apparatus with impregnation bath, covering layer applying device with covering bath provided with guiding roll, sprinkling unit with supply of large-grain sprinkling material, cooled conveyor table and winding device. Each of impregnation and covering layer applying baths has at least one guiding roll and dipping rolls positioned for free rotation. Dipping rollers are mounted on hinged frame. Each of impregnation and covering layer applying baths has driven squeezing roll half dipped into hot working fluid. Bath with fine-dispersed powder suspension is positioned between covering bath and sprinkling unit and is provided with covering roll which is half dipped into suspension. Covering roll is positioned for rotation in counterclockwise direction. Prior to starting production line, roll material web is passed through all process devices from the beginning to the end of line and is arranged in horizontal position. EFFECT: simplified construction and convenient operation and maintenance. 3 cl, 3 dwg