SU919757A1 - Vibration classifyer - Google Patents

Description

(54) CLASSIFIED CLASSIFIER

 I. .

The invention relates to vibration classifiers designed to separate bulk mixtures and ol granulometric fractionation of bulk materials with a grain size of 8OO microns, and can be used in powder, metallurgy, chemical, refractory, rounder, pharmaceutical and other industries.

A device for separating materials is known, which includes a sloping chiu surface, a vibrator, a loading, and a discharge faceplate; esh1 D,

The disadvantage of this device is low transmission.

The closest to the technical essence and the achieved regulyatu to the fiddle is the classifier of powder-like mats, including the working surface, the vibrator, the diffuser, the generator, the filling and unloading devices 12,,

A disadvantage of the known device is the low quality of classification.

The purpose of the invention is to improve the quality of classification.

The goal is achieved by the fact that the classifier is provided with an installed working surface and a diffuser with a phase-shifting device, while the working plane of the oscillation plane is located asymmetrically with the longitudinal axis of the vibrator

Fig, 1 shows a vibration classifier, a general view; FIG. 2 is the same, view of CBep: sy,

Claims (2)

The vibration classifier contains a working surface 1 connected via a phase-shifting device 2 to the diffusion 3 with a vibrator 4. The working surface is made in the form of a plane supported on leaf springs 5 ,. The vibrator oscillations are excited by a gene of ator 6, which forms asymmetrical electrical signals. The feed material is supplied with chute 7, the classified product is collected in collection 8. The inclination of the working surface is changed by the inclination of the base plate 9 with screws H relative to the base plate 11, which sets the transverse tilt of the plate 9 and the entire device. The angle of lateral inclination is regulated by the rotation of the screws. The Schrabor Classifier works in a different way. The operation of the device is based on the joint use of the forces of friction and the forces of sound pressure. When working on the work surface I, the bulk material falling on it begins to move with a scaling determined by the value of the coefficient of friction. Carried out by acting on a pfoschkoobrazny material by shock acoustic waves coming from the loudspeaker loudspeaker 3, the particles additionally accelerate, but the rocks reverse their particle size. At each time point, the friction forces and the sound pressure forces act on the parts in the same direction of the line, and not in the opposite direction, as it would have been without the phase shifter 2. The latter ensures the out-of-phase oscillation of the working surface relative to the air. The combined action of friction forces and sonic forces leads to directional movement of particles along the working surface, often compensated by the inclination of the surface. As a result, particles of different sizes move at different speeds, not only in magnitude, but in direction. The presence of lateral inclination causes the particles to move along different trajectories and into different receiving receptacles. Smaller particles appear in the upper collections. The use of a glandated vibration classifier allows for improved classification quality. Vibration Classifier, which includes a vibrator, a work surface, a diffuser, a generator, loading and unloading devices, is different because, in order to improve the quality of the classification, the classifier is equipped with a phase-shifting device installed between the working surface and the diffuser. The working surface is located asymmetrically to the longitudinal axis of the vibrator. Sources of information taken into account at the first examination 1. USSR author's certificate No. 114115, cl. In O7 In 1 / 4O, 1956. 2. Copyright certificate of the GSSR according to the application M 2138162 / 29-03, B 1 / 4O, 1975 (prototype). .