SU749431A2 - Apparatus for enriching minerals - Google Patents

Description

The invention relates to a device for the separation of minerals by specific gravity and fineness and can be used in the beneficiation and classification of ores.

On the main author; St. No. 4,76895 a device is known including a cylindrical-conical chamber ⁵ with a cylindrical gravity separation chamber installed underneath it and an additional nozzle installed in the gravitational chamber, in the upper part of which a separation cup is placed with the possibility of moving along the nozzle. The apparatus is equipped with a pulsator connected to a gravitational separation chamber. The unloading of the heavy, _$ logo of the product is carried out through the nozzle [1].

In such an apparatus, it is impossible to regulate the outlet gap, as a result of which the process continuity is violated. _Μ The purpose of the invention is to increase the separation efficiency by ensuring the uniformity of pulp flows in the area of cramped separation.

This is achieved by the fact that the gravitational chamber is equipped with a perforated annular partition mounted at the level of the pulsator and a conical device installed with the possibility of vertical movement and forming an annular gap with the partition.

The drawing shows the proposed apparatus.

The apparatus includes cameras 1 and 2 of centrifugal and gravity separation. In the gravitational chamber 2, at the level of the pulsator 3, a perforated annular partition 4 is mounted, attached to the body of this chamber, forming a protrusion 5. A conical shutter 7 is mounted with the possibility of longitudinal movement 6 and a dividing cup 8 is installed.

The lower part of the gravitational chamber 2 is formed by truncated cones 9 and 10 connected by bases. This shape of the lower part of the gravitational chamber is due to the placement of a cone in it

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whom the shutter 7. To unload the separation products, in addition to the additional pipe 6, are the pipes 11 and 12,

The device operates as follows.

The initial pulp is fed into the centrifugal separation chamber 1, from where the discharge is removed through the nozzle 11, and the sands enter the gravity chamber 2, where, under the action of the pulsating water flow generated by the pulsator 3 directed towards the separated material, they are separated into light and heavy products. The light product due to the difference in hydrostatic pressure arising in the stratification zone of the grains 15 of the useful component is displaced by a heavier mechanical suspension under the separation cup 8 and is removed through an additional pipe 6.

The heavy product is discharged through 2 (> the annular gap between the protrusion 5 of the perforated annular partition 4 and the conical shutter 7 into the discharge pipe 12, rinsing with a pulsating water flow. The size of the outlet slit 25 is regulated by moving the conical plot up or down.

When classifying iron ores according to the class of 40 μm, the classification efficiency in the proposed apparatus was 86%, which is 20% higher than the classification efficiency in the known apparatus.

Claims (1)

Claim Apparatus for mineral processing by ed. St. No. 476895, which is due to the fact that, in order to increase the separation efficiency by ensuring the uniformity of pulp flows in the restricted separation zone, the gravity chamber is equipped with a perforated annular partition installed at the level of the pulsator and conical. A shutter installed with the possibility of vertical movement and forming an annular gap with a partition.