RU2012110437A

RU2012110437A - DIRECT RATTER

Info

Publication number: RU2012110437A
Application number: RU2012110437/03A
Authority: RU
Inventors: Георгий Васильевич Серга; Виктор Дмитриевич Таратута
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2013-09-27
Also published as: RU2497602C1

Abstract

Прямоточный грохот, включающий просеивающую поверхность, загрузочное и разгрузочное приспособления, привод, отличающийся тем, что просеивающая поверхность выполнена винтовой многозаходной, пустотелой из трех и более перфорированных полос прямоугольной формы, свернутых в вертикальной плоскости в продольном направлении и изогнутых по винтовым линиям в поперечном направлении на цилиндрической оправке с образованием по периметру винтовых линий и винтовых криволинейных поверхностей в виде винтовых канавок вогнутой или выпуклой формы относительно оси симметрии просеивающей поверхности с центрами кривизны расположенными наружи или внутри поперечного сечения просеивающей поверхности, или просеивающая поверхность изготовлена из трех и более винтовых перфорированных полос криволинейной вогнутой или выпуклой формы относительно оси вращения просеивающей поверхности различного порядка и степени кривизны с центрами, расположенными наружи или внутри поперечного сечения просеивающей поверхности относительно ее оси вращения, при этом по всей длине просеивающей поверхности смонтирована цилиндрическая пружина, которая оборудована устройством для изменения шага витков путем ее растяжения или сжатия.Direct-flow screen, including a screening surface, loading and unloading devices, a drive, characterized in that the screening surface is made of multi-helical screw, hollow of three or more perforated rectangular strips, rolled up in a vertical plane in the longitudinal direction and curved along helical lines in the transverse direction to a cylindrical mandrel with the formation along the perimeter of helical lines and helical curved surfaces in the form of helical grooves of a concave or convex shape o relative to the axis of symmetry of the screening surface with the centers of curvature located outside or inside the cross section of the screening surface, or the screening surface is made of three or more screw perforated strips of curved concave or convex shape relative to the axis of rotation of the screening surface of various orders and degrees of curvature with centers located outside or inside the cross-section of the screening surface relative to its axis of rotation, while along the entire length of the screening surface STI is mounted the coil spring, which is equipped with a device for changing a pitch of the turns by stretching or compressing it.

Claims

Direct-flow screen, including a screening surface, loading and unloading devices, a drive, characterized in that the screening surface is made of multi-helical screw, hollow of three or more perforated rectangular strips, rolled up in a vertical plane in the longitudinal direction and curved along helical lines in the transverse direction to a cylindrical mandrel with the formation along the perimeter of helical lines and helical curved surfaces in the form of helical grooves of a concave or convex shape o relative to the axis of symmetry of the screening surface with the centers of curvature located outside or inside the cross section of the screening surface, or the screening surface is made of three or more screw perforated strips of curved concave or convex shape relative to the axis of rotation of the screening surface of various orders and degrees of curvature with centers located outside or inside the cross-section of the screening surface relative to its axis of rotation, while along the entire length of the screening surface STI is mounted the coil spring, which is equipped with a device for changing a pitch of the turns by stretching or compressing it.