SU839603A1 - Apparatus for sieving materials - Google Patents

Description

one

This invention relates to the production of construction materials and may. to be used for separating bulk building materials according to particle size. A centrifugal separator for separating loose mixes is known, which contains a rotating sieve made in the form of a reduced cone mounted with a smaller base, a rotor having openings, a conical distributor that can be moved vertically .

The separation of the material occurs in two fractions. The fine fraction through the holes in the perforated rotor enters the inner bunker, and large under the action of centrifugal force rises up and enters the outer bunker .D-

Closest to the proposed technical entity is a device for sifting material containing a rotor with blades, made in the form of a truncated cone, installed with a smaller base down and located inside the case on which the boot is fixed. : bunker and distributor installed inside the rotor. In this case, the device is equipped with a system for controlling the rotational speed of the rotor, which receives rotation from two electric motors through two friction bevel gears 2}.

A disadvantage of the known device is the low separation efficiency of the material due to the fact that the ratio of the area of the holes on the rotor to the total surface area of the rotor is relatively small. During the operation of the device, a large amount of dust rises, which contaminates the surrounding space.

five

The purpose of the invention is to increase productivity, quality screening and reduce dusting.

The goal is achieved by that in the device for sifting material containing a rotor with blades, made in the form of a truncated cone, installed by a smaller base anise and located inside the cone, on which

5 a loading hopper and a distributor mounted inside the rotor are fixed; the rotor is made of a frame with metal wire wound around it along a helical line with a gap between its turns, and the walls of the bunker

Claims (2)

Claim 1. Device For sifting material containing a rotor with blades, made in the form of a truncated cone installed with a smaller base down and located inside the housing on which the loading hopper is fixed, and a distributor installed inside the rotor, characterized in that., In order to increase productivity and sifting quality, the rotor is made of a frame with a metal wire wrapped around it on a helix with a gap between the turns. 2. The device according to claim 1, about t l and h a-. Further, in order to prevent dusting, the walls of the silo in the lower part are equipped with needles mounted perpendicular to the walls.