SU1235555A1 - Vibratory screen - Google Patents

Description

The invention relates to the field of separation of bulk materials into fractions and can be used in the coal, mining, building materials and other areas of the national economy.

The aim of the invention is to improve the quality of the screening process by providing uniform oscillations over the entire surface of the screen.

FIG. 1 shows the proposed screen, a plan view; in fig. 2 is a sectional view in FIG. one.

The screen contains frame 1, duct 2 in the form of separate sections, fixed on frame 1 by means of shock absorbers 3. Each section of box 2 is equipped with a high-frequency vibrator 4. Sieve 5 is also made of separate sections interconnected by flexible tapes 6. Each section of sieve 5 is fixed on a rigid framework 7.

Each frame 7 is a rigid metal structure in the form of a sieve.

ki formed by side 8 and internal 9 jumpers. The frames 7 are supported by the side bridges 8 on the sections of the box 2 through elastic elements 10 made in the form of plates. The sides of the sections of the duct 2 are connected by flexible sides 11 to the sections of the sieve 5.

The roar works as follows. When high-frequency vibrators 4 are turned on, sections of the duct 2 begin to vibrate, from which vibrations are transmitted through elastic elements 10 to frames 7 and sections of sieve 5 fixed on them, into which the source material is divided.

In the process of oscillation, the frame 7 with the sections 1 fixed on the sieve 5 collides with the sections of the box 2. At the same time, shock pulses are added to the incident inertial forces caused by the E high frequency vibration. The resulting inertial and shock forces provide

effective cleaning of the screen from adhering material and allows for the screening process with high efficiency.

FIG. 2

Claims (1)

VIBRATING SCREEN, including a frame, a box with sieves and elastic elements and high-frequency vibrators, characterized in that, in order to improve the quality of the screening process by ensuring uniform vibrations across the entire surface of the sieve, the box with a sieve is made in separate sections and equipped with sections elastic elements with rigid frames on which sieves are installed, each section being installed with the possibility of interaction with a high-frequency vibrator. A J u SL SL SL SL FIG. 1