SU1430106A1 - Unit for dividing mixtures of materials - Google Patents

Abstract

The invention relates to a device for separating mixtures differing in density, and can be. used in nonferrous metallurgy, etc. The aim of the invention is to increase the installation performance by increasing the time between repairs of its operation. Inside the housing 2 on the vertical shaft 9 there is a rotor () 13, made in the form of cylindrical walls (c) 14 and 15j interconnected by a disk 16 and jumpers. Tf Power, 21. 9 (L 00 Phag.1

Description

At the same time, P 13 is loosely mounted on the hub consisting of sleeve 11 with packs of flat springs 12. In case 2, a pulse braking mechanism 24 kinematically connected to P 13 is mounted, consisting of a spring pawl. The disk 16 has holes 19 for supplying power and water to the C 15 and a shell 20 is installed, which forms an annular feeder 21 with the upper part C 15 and the disk 16. On base 1. receivers A and 6 are installed, respectively, of centrate and concentrate. Pulp from a feeder 21 evenly raz 0106

flows over the surface of P 13. The denser pulp particles are pressed against C 15 and flow down. As a result of the combined actions of the mechanism 24 and the springs 12, a periodic force is applied to the particles — shaking and stirring up the material. As the concentrate reaches the lower level of P 13, the power is cut off and the frequency of rotation of P 13 is sharply reduced. Then, through pipe 30, water is supplied to C 15 to flush the concentrate, which enters the receiver 6. The centrifuge is discharged to receiver 4. 2 Il.

one

The invention relates to devices for separating mixtures that differ in density under the action of centrifugal forces and can be used in non-ferrous metallurgy and other industries.

The purpose of the invention is to increase the productivity of the installation by increasing the time between repairs of its operation.

Figure 1 shows the proposed installation, section; figure 2 - section aa in figure 1.

The installation consists of the base 1, the housing 2 and the cover 3. The base 1 contains the receiver 4 of the centrate with the outlet nozzle, 5, the receiver 6 of the concentrate with the nozzles 7 and. a bearing assembly 8 in which a shaft 9 is mounted. A hub 10 is mounted on the latter, consisting of a sleeve 11 with packs of flat springs 12. A rotor 13 is mounted on the hub. 10 and consists of cylindrical walls 14 and 1 5 interconnected

 disc 16 and bridges 17. On the inner wall 14, install the stops 18 to install the springs 12 of the hub 10 in them. In the disc 16 there are holes 19 for supplying power and water to the inner wall 15. The wall is lined with a durable material with a small coefficient of friction and a smooth surface. On the disk 16, a ring feeder 21 is mounted on the shell 20, forming together with the upper part of the wall 15 and the disk 16

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The outer part of the wall 15 is fixed to a ring 22 with two roller lugs 23 spaced 180 degrees apart. In case 2, a rotor pulse braking mechanism 24 is mounted, consisting of (figure 2) pawl 25 with a spring 26 fixed in an eye 27 27 by an axis 28. The pawl rests on a soft rubber lining (not shown) in the initial position. The tension of the springs can be adjusted by a bolt 29. In the lid 3, nozzles 30 and 31 are mounted for supplying water and pulp to the feeder 21.

In the process of adjusting the installation to the optimum mode of operation, the calculated required rigidity of the packages of springs 12 is selected by selecting them by number or thickness. The duration and strength of the braking impulse of the rotor 13 depend on the stiffness of the spring 12 and tension (spring 26 of the pawl 25, which resists the stop roller 23.

The installation works as follows.

. Turn on the electric motor, in the annular feeder 21 serves the pulp. Under the action of centrifugal forces, the slurry spreads evenly over the surface of the rotating rotor. More dense (heavy) pulp particles are more actively pressed against the wall, they are more strongly inhibited, accumulate on it, and slowly flow down under the action of gravitational forces.

In order to more actively separate the material mixtures in the pulp, periodic force on the particles is required, shaking or so-called vzmuchivanie material. In this device, this is achieved as a result of the combined action of the mechanism 24 of the pulsating braking of the rotor and the spring springs 12. Rotate in the direction indicated by the arrow in Fig. 2, the thrust roller 23 hits the short arm of the supporting pawl 25, the rotor slows down, stopping for a time necessary for triggering the pawl. The hub 10 during rotation of the rotor continues to rotate with the shaft 9 by inertia, while the springs 12, bending, store potential energy. Out of engagement, the rotor under the action of the stored energy of the spring 12 progresses sharply in the direction of rotation, and each particle of material found in the pulp layer on the rotor wall receives, due to inertia, its own mass of impulse 1 moving relative to the wall.

During one revolution of the rotor, two pulp soaring cycles occur. The frequency of the cycles may vary with the speed of rotation of the rotor and the number of stop rollers. In a plant that is tuned to the optimum mode of operation, there is a gradual accumulation of dense particles of the useful component and honey.

their sliding along the rotor wall, lighter particles (fugat) go to the unloading into the receiver 4. As the concentrate reaches the lower level of the rotor, the power is cut off, the rotor rotates (or stops) sharply, then water is fed through the pipe 30 15 to flush the concentrate. Since the rotational speed of the rotor is low (or zero), the enriched material drains steeply into the concentrate receptacle 6 along with the water. At the end of the concentrate unloading, the former rotor speed is turned on again and the new enrichment cycle is repeated. The cycle rotation process is easily automated.

Claims (1)

Invention Formula A plant for separating mixtures of materials, including a housing, a rotor mounted inside the housing on a vertical shaft, receivers of separation products, characterized in that, in order to increase productivity, it is equipped with a pulse braking mechanism, and the rotor is built in the form of a hollow double wall cylinder, freely mounted on the hub, consisting of a sleeve and a spring spring system, the rotor is kinematically connected with the mechanism of pulse braking. 25 29 2 22