SU360975A1 - DEVICE FOR CLASSIFICATION OF GRAINED MATERIALS - Google Patents

Description

one

A true device for classifying granular materials, including a chute with an endless belt in it, covering the drums.

The proposed device differs from the known one in that the endless ribbon is made in the form of a sieve with transverse grates, on the straight line of the upper branch of which a vibrator is mounted. This improves the efficiency of the classification of the source material.

FIG. 1 shows the proposed device, a longitudinal section; in fig. 2 is the same, top view in FIG. 3 is a section along A-A in FIG. one; in fig. 4 is a section along BB in FIG. 3; in fig. 5 shows the node I in FIG. 3 (image in two projections); in fig. 6 is a section along BB in FIG. one.

The proposed device consists of a receiving pipe /, a loading chamber 2 with a mechanism 3 placed therein for removing large inclusions from the slurry, the rotation of which is transmitted through a V-belt (or other) transmission from the engine 4.

On the front wall of the loading chamber, obliquely along the movement of the slurry-securing vehicle, the grate 5, located along the axis of the gap between the columns of the mechanism 3.

The endless belt 6, made in the form of a sieve with transversely grate 7, covers three drums; drive 8, end 9 and tension 10. The rotation to the drive drum is transmitted through the gearbox // from the engine 12.

The curved portion of the grate is formed by two clamping drums 13 located on the same shaft.

The sieve is made in the form of two side rubber bands connected by the grate 7.

Each tape has two flanges: the outer one is high and the inner one is low. The inner flanges fix the polishing of the belts on the drums, preventing the grate sieve from moving sideways from the longitudinal axis of the device; outer ribs serve to prevent the slurry from spreading beyond the screening surface of the sieve.

To prevent the belts from lengthening during tension during the operation of the device

the ribbons inside are reinforced with longitudinally arranged cable reinforcement 14. To increase the stiffness of the outer ribs, the ribbons are reinforced with an additional L-shaped bar reinforcement 15.

The grate 7 sieves are fixed on the tapes with the help of linings 16 with trapezoidal grooves attached to the tapes, for example, by means of bolted joints 17. The linings are inclined towards the longitudinal axis

devices for the flow of slurry on a sieve and

Preventing the removal of a portion of small fractions into a large product.

The side ribbons of the flat portion of the upper sieve branch are enclosed by stapled spring-loaded slides 18, the IK of which is attached to the vibrator 19. An irrigation device 20 is installed above the straight section of the sieve.

The device works as follows.

The source material to be divided into two fractions, in the form of a slurry, is fed through the inlet pipe / into the loading chamber 2 vertically downwards.

Large inclusions, located at the slurry stream closer to the front wall of the loading chamber, falling onto the grate bars 5, are thrown away towards the oversize exit.

Some of the large inclusions that pass the bog grates fall into the "a" grid of the 3 -mechanism for removing large inclusions, which, rotating in a clockwise direction, with the help of scalping bars of the grid 22 removes them beyond the loading chamber.

The slurry that passes through the grate between the grates collects in the lower part of the loading chamber 2 and through the slit-hole of the guide funnel enters the rotating KOSTOKES 7. At the site of the sieve bent along the arc, due to centrifugal forces, a large part of the water together with particles less

the boundary diameter is divided and passes through the sieve to the distribution point 23 and to the bunker 24. Part of the fine material is not noshedsha

through the sieve on its arcuate section, under the joint influence of the directional oscillating vibrator 19 and water supplied from the irrigation device 20, is sorted in the straight line section of the working

sieve branches.

The slurry of the small product — from the collecting bin 24 and the dewatered large product — are discharged through the box 21 to the subsequent processing steps.

The rotary grate of the device, in combination with vibrating and irrigated straight lines, allows to classify granular materials with high

separation accuracy with minimal abrasive wear.

Subject invention

A device for classifying granular materials, including with an endless belt located therein, covering drums, characterized in that, in order to increase the efficiency of the classification, the infinite band is made in video screen with transverse grate, on the straight section of the upper parts of which is installed vibrator.

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