RU2011136121A

RU2011136121A - DRUM RATTER

Info

Publication number: RU2011136121A
Application number: RU2011136121/03A
Authority: RU
Inventors: Виктор Дмитриевич Таратута; Георгий Васильевич Серга
Priority date: 2011-08-30
Filing date: 2011-08-30
Publication date: 2013-03-10
Also published as: RU2481902C1

Abstract

Барабанный грохот, включающий закрытый со всех сторон короб, с расположенными поярусно друг под другом и соединенными жестко в единую технологическую цепочку винтовыми пустотелыми барабанами, вибровозбудителем и упругими элементами, средствами загрузки и выгрузки мелких и крупных частиц сыпучего материала, отличающийся тем, что винтовые пустотелые барабаны выполнены выпуклой и вогнутой формы, установленные поочередно друг под другом, при этом винтовые барабаны выпуклой формы изготовлены по периметру из трех и более свернутых в вертикальной плоскости и последовательно соединенных между собой перфорированных полос переменной ширины выпуклой криволинейной формы, свернутых в вертикальной плоскости в продольном направлении, изогнутых по винтовым линиям в поперечном направлении и согнутых по надрезам, со скошенными стенками в поперечно-продольном направлении, расположенными попарно под углом один к другому с обеих сторон перфорированных полос на выпуклой оправке с образованием по периметру винтового барабана направленных навстречу друг другу ломаных винтовых линий и ломаных винтовых перфорированных поверхностей с одинаковым переменным шагом по длине барабана; а винтовые барабаны вогнутой формы изготовлены из перфорированных полос переменной ширины вогнутой формы свернутых в вертикальной плоскости в продольном направлении, изогнутых в по винтовым линиям в поперечном направлении и согнутых по надрезам, со скошенными стенками в поперечно-продольном направлении, расположенными под углом один к другому с обеих сторон перфорированных полос на вогнутой оправке с образованием по периметру винтовог�Drum screen, including a box closed on all sides, with belt-mounted screw hollow drums, vibration exciter and elastic elements, means for loading and unloading small and large particles of granular material, which are tucked under each other and rigidly connected to a single technological chain, characterized in that the screw hollow drums made convex and concave in shape, mounted alternately under each other, while the convex-shaped screw drums are made around the perimeter of three or more vertically folded the horizontal plane and serially connected perforated strips of variable width of a convex curvilinear shape, folded in a vertical plane in the longitudinal direction, curved along helical lines in the transverse direction and bent along notches, with beveled walls in the transverse-longitudinal direction, arranged in pairs at an angle of one to to the other, on both sides of the perforated strips on a convex mandrel with the formation along the perimeter of the helical drum of broken helical lines directed towards each other perforated screw and polygonal surfaces with the same variable pitch length of the drum; and concave helical drums are made of perforated strips of variable width of concave curved in the vertical plane in the longitudinal direction, curved in the helical lines in the transverse direction and bent along the notches, with beveled walls in the transverse-longitudinal direction, located at an angle to one another both sides of the perforated strips on a concave mandrel with the formation of a screw

Claims

Drum screen, including a box closed on all sides, with belt-mounted screw hollow drums, vibration exciter and elastic elements, means for loading and unloading small and large particles of granular material, which are tucked under each other and rigidly connected to a single technological chain, characterized in that the screw hollow drums made convex and concave in shape, mounted alternately under each other, while the convex-shaped screw drums are made around the perimeter of three or more vertically folded the horizontal plane and serially connected perforated strips of variable width of a convex curvilinear shape, folded in a vertical plane in the longitudinal direction, curved along helical lines in the transverse direction and bent along notches, with beveled walls in the transverse-longitudinal direction, arranged in pairs at an angle of one to to the other, on both sides of the perforated strips on a convex mandrel with the formation along the perimeter of the helical drum of broken helical lines directed towards each other perforated screw and polygonal surfaces with the same variable pitch length of the drum; and concave helical drums are made of perforated strips of variable width of concave curved in the vertical plane in the longitudinal direction, curved in the helical lines in the transverse direction and bent along the notches, with beveled walls in the transverse-longitudinal direction, located at an angle to one another both sides of the perforated strips on a concave mandrel with the formation along the perimeter of the screw drum of a concave shape directed towards each other broken lines and broken screws s perforated surfaces with variable pitch.