RU2665493C2 - Vibrating gate - Google Patents

Abstract

FIELD: extraction of minerals.

SUBSTANCE: invention relates to the enrichment of minerals containing heavy and precious metals, in placer deposits, sand and gravel mixtures, man-made dumps and in other materials. In the method, the vibrating gate contains an inclined trough with a tilt adjuster, a vibrator, a vibration control system, rugs and stencils. Said vibrating gate is equipped with one or more additional vibrators installed under the chute along its length and width. Above vibrators are made on the basis of electromagnets, and the vibration control system is made with the possibility of adjusting the amplitude of the pulses of vibration action during the operation of the vibrating gate and with the possibility of adjusting the shape of the vibration pulse by setting successive pulses of vibration action along the length of the trough – in the traveling wave mode.

EFFECT: technical result is an increase in the efficiency of precipitation of the useful component and the maximum extraction of fine and small grades of the useful component with varying characteristics of the pulp.

1 cl, 2 dwg

Description

The invention relates to the field of mineral processing, containing heavy and precious metals, in placers, sand and gravel mixtures, man-made dumps, phosphorites and other materials.

Known vibratory lock containing an inclined trough, a system of stencils and a crank mechanism with a drive (ed. St. USSR No. 724194, class B03B 5/70, 1965). A disadvantage of the known solution is the low efficiency of the enrichment process, due to the formation of stagnant zones at the bottom of the trench, preventing the deposition of particles of the useful component.

Closest to the proposed device, the technical solution (prototype) is a vibratory lock containing an inclined trough with a tilt angle adjuster, a pallet with a vibrator, a vibration control system, mats, stencils and a water supply system (RF patent No. 2160639, IPC V03V 5/72, 20.12. 2000).

The disadvantage of the prototype device is the inability to quickly and efficiently rebuild the operation of the vibratory lock depending on the parameters of the incoming pulp changing at the input, jamming of the pallet with the incoming material during operation.

The technical result of the proposed technical solution is the ability to maximize the extraction of a useful component with a varying composition and quality of pulp both from field to field and in time at one field, increasing the production work of the sluice, reducing energy consumption and increasing the deposition efficiency of the useful component.

The specified technical result is achieved by the fact that in a vibratory lock containing an inclined trough with a tilt angle adjuster, a vibrator, a vibration control system, mats and stencils, according to the proposal, the vibrator is installed under the trough, and the vibration control system is configured to control the amplitude of the pulses of the vibrator’s vibration impact on the trough during operation of the lock and with the possibility of regulating the shape of the pulses of vibration exposure.

The device can be additionally equipped with one or more vibrators installed under the chute along its length and width, and the vibration control system is additionally configured to control the amplitude of the pulses of the vibration effects of these vibrators on the chute during operation of the lock and with the possibility of controlling the shape of the pulses of the vibration effect.

In addition, the vibration control system may be further configured to control the vibration frequency.

Vibrators can be made on the basis of electromagnets, moreover, the control system for the vibration of pallets can be additionally configured to specify a sequence of pulses of vibration exposure along the length of the gutter.

The implementation of the vibration control system with the ability to control the amplitude of the pulses of the vibration exposure during the operation of the lock and with the ability to control the shape of the pulses of the vibration lock allows you to increase the productive work of the lock, reduce energy consumption and increase the deposition efficiency of the useful component, especially its fine and fine fractions, due to the optimal amplitude and the shape of the vibration pulses when reaching the maximum value (sharp shaking mode). Periodic short-term increase in vibration amplitude allows avoiding siltation of mats without stopping the enrichment process.

The additional supply of a vibratory lock with one or more vibrators installed under the groove along its length and width, and the implementation of a vibration control system with the ability to control the amplitude of the pulses of the vibration effects of these vibrators on the groove during the operation of the lock and with the possibility of controlling the shape of the pulses of vibration exposure allows you to change deposition modes of the useful component and choose the most energy-efficient pulp separation mode.

The implementation of the vibration control system with the ability to control the vibration frequency provides an additional increase in the separation efficiency of the pulp due to the expansion of the parameters of the deposition mode of the useful component.

The implementation of vibrators based on electromagnets allows you to expand the ability to control vibration modes. In particular, the implementation of a vibration control system with the ability to specify a sequence of pulses of vibration along the length of the gutter (“traveling wave” mode) avoids siltation of the stencils and increases production time between industrial product shots.

We have not found known technical solutions with features similar to the essential distinguishing features of the proposed device, therefore, we believe that it meets the criteria of the invention "inventive step".

The proposed device is illustrated by drawings, where in FIG. 1 shows a general view of a vibratory lock; FIG. 2 - general view of a vibratory lock with two vibrators.

The vibro-lock (Fig. 1) contains: an inclined trough 1, an angle adjuster 2, a vibrator 3, a vibration control system 4, mats 5, stencils 6.

The vibration control system is configured to control the amplitude, shape and frequency of the pulses of vibration exposure during operation of the lock.

The vibro lock can contain two or more vibrators 7 (Fig. 2) along the length of the groove 1, and the vibration control system 4 is configured to control the amplitude of the pulses of the vibration effects of these vibrators on the groove during the operation of the vibro lock and with the possibility of regulating the shape of the pulses of the vibration. In addition, the vibration control system 4 may be further configured to control the vibration frequency.

Vibrators can be made on the basis of electromagnets, moreover, the vibration control system can be additionally configured to specify a sequence of pulses of vibration exposure along the length of the gutter.

The device operates as follows.

The incoming material in the form of pulp is fed to the gutter 1 (Fig. 1, 2) with a vibrator 3 (Fig. 1) or vibrators 7 (Fig. 2), laid on the bottom with mats 5 and stencils 6. Before that, using the adjuster 2, select the angle tilt the gutter. When you turn on the vibrator 3 using the vibration control system 4, the vibration mode is set. At the beginning of the enrichment process, average values of the parameters of the mode (amplitude, frequency and vibration mode) of vibration are set and after a certain time, for example 24 hours, the product is removed. Further, the amplitude of the oscillations decreases and the product is again removed. Depending on the output quantity of the useful component, the optimal vibration mode is selected (the amplitude and frequency of the oscillations decrease or increase).

To reduce the siltation of mats 5 and stencils 6 (Fig. 1) during the operation of the vibratory lock, in order to reduce the processing time of the pulp, the amplitude of the pulses of vibration exposure can be changed (increased) or the shape of the pulses can be changed, for example, by drastically reducing the impact from the maximum amplitude pulses to a minimum value.

The implementation of the vibrators 7 (Fig. 2) based on electromagnets allows you to further expand the range of modes of operation of the gateway, in particular, to implement, if necessary, the sequential mode of supplying pulses of vibration exposure along the length of the gutter ("traveling wave" mode).

Claims (1)

A vibratory lock containing an inclined groove with a tilt angle adjuster, a vibrator, a vibration control system, mats and stencils, characterized in that the vibratory lock is equipped with one or more additional vibrators installed under the groove along its length and width, the vibrators being made on the basis of electromagnets, and the system vibration control is configured to control the amplitude of the pulses of the vibration effect during operation of the lock and with the ability to control the pulse shape of the vibration impact put We set the consecutive impulses of vibration exposure along the length of the gutter in the traveling wave mode.

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