SU1651988A1 - Sifter - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to the mining industry, construction, chemical industry, and others, which belonged to the national economy. The goal is to increase the performance and quality of screening by creating a shock-resonance mode of operation of the oscillating parts of the screen. A sieve 9 is installed obliquely along the zigzag line inside the movable part 2 of the composite frame of the screen. A platform 16 is connected to the movable part 2. The frame, on which a vibrator 15 is mounted on the shock absorber 17. A dust fan 3 is installed on the fixed part 1 of the frame. surfaces (P) of the movable part 2 of the frame are fixed spring-loaded supports 12, on which sieves 9 are installed. In the cross section of the sieve 9, box-shaped forms are made in the form of sifting P 10. The screens between 9 and 11 are installed. The distance between P 10 and 11 s puts 1.5-2.2 cell sizes of screen 9. With fan 3, nozzle 4 is connected to confusor 5 with loading nozzle 6. Unloading nozzles 13 are installed in the moving part 2 of the frame. P 10, fall on P 11 and, making reciprocating movements, clean P 10 from contamination. The movement of the grains along P 10 and 11 is carried out in the resonant mode of oscillation of the supports 12. 4 Il cl

Description

The invention relates to installations for cleaning and sorting mater; It can be used in the mining, construction, chemical, and other industries of the national economy.

The purpose of the invention is to increase the productivity and quality of screening by creating a shock resonance mode of operation of the oscillating parts of the screen.

FIG. 1 schematically shows the roar, general view; in fig. 2 - node I in FIG. 1; in fig. 3 shows section A-A in FIG. 2; FIG. 4 is a section bb of FIG. one.

The screen consists of a fixed part 1 of the frame, inside of which the movable part 2 of the frame is placed. Above still

Part of the frame is fitted with a dust fan 3, connected by a pipe 4 with an embarrassing 5 that contains a loading pipe 6. The mobile and fixed parts of the frame are connected by vertical 7 and horizontal 8 shock absorbers. Inside the moving part of the frame, box-shaped sieves 9 are placed in cross-section in the form of screening surfaces 10 and fender surfaces 11 installed under the screens, and they are installed along a zigzag line. The distance between the screening 10 and the baffle 11 surface is 1.5-2.2 mesh size. The sieve 9 is mounted on spring-loaded supports 12 fixed on the inner surface of the movable part 2 of the frame. Unloading nozzles 13 install

SP

Yu

00 00

In front of the stationary part 1 of the frame there is a vibrator 15, made in the form of a shock-vibration mechanism. Above the vibrator 15 there is a oscillating platform 16 mounted on shock absorbers 17. The operation of the screen is controlled from the control panel 18.

The roar works as follows.

The material through the loading nozzle 6 enters the sieve 9 of the box section and is sorted under the shock-vibration effect. The impact on the material is communicated from the platform 16 through the movable part 2 of the frame. In the process of sorting, the grains of material pass through the sifting surface 10, fall on the bumping surface 11 and, making reciprocating movements, clean the sifting surface from soiling. The grains move along the screening and breaking surfaces in the resonant mode of oscillation of the spring-loaded supports 12. The cleaned material moves along the installed obliquely screenings 10 and the cutting surfaces 11 into the discharge pipes 13 and further to the conveyors with vibrating feeders 14. Dusty particles through confuser 5, pipe 4 and

The dust fan 3 enters the aspiration system (not shown). To avoid damage to the elements of the screen, the lifting parts of which oscillate in a shock resonance mode, vertical 7 and horizontal 8 shock absorbers are provided.

Claims (1)

Claim of the invention, including fixed and movable parts of the frame, placed obliquely along a zigzag line inside the movable part of the sieve frame, a vibrator with a platform mounted on the shock absorbers connected to the movable part of the frame, loading and unloading nozzles, dust fan installed above the fixed part of the frame, and conveyors with vibrating feeders, characterized in that, in order to increase the productivity and quality of screening by creating a shock-resonance mode of operation, oscillating screen parts are provided with spring-loaded supports fixed on the inner surface of the moving part of the frame, on which screen-shaped sieves are installed in cross-section, and the fender surfaces installed under them, the distance between each sieve and the corresponding fender surface being 1, 5-2.2 cell size sieves.