RU210582U1 - DEVICE FOR EXTRACTION OF PRECIOUS METALS FROM SANDS - Google Patents

Abstract

The utility model relates to devices and systems for separating solid materials using liquids, concentration tables or jigging machines. The technical result of the utility model is to increase the extraction rate of precious metals, which is achieved due to the fact that the device for extracting precious metals from sands, containing a hopper, screening grates, a sluice, a dump chute and an irrigation system, is characterized by the fact that it additionally contains a scrubber- a dredger mounted on the frame of the device under the loading hopper and made with the possibility of mechanical disintegration of sands, and an unloading hopper mounted under the sowing surface of the scrubber dredger at an inclination to the upper part of the vibrating sluice with the possibility of supplying pulp of disintegrated and fractionated sands from the scrubber dredger to the upper part of the vibration lock located in the lower part of the frame of the device, the vibration lock on the frame is mounted on sliders that provide a change in the angle of inclination of the vibration lock, and is movable with the possibility of reciprocating motion perpendicular to the longitudinal axis of the device, while returning the reciprocating movement of the vibrating sluice is made from an engine mounted on a frame with the possibility of involving the laminar flow of the pulp in its upper layers in the transverse reciprocating motion of the vibrating sluice into a circuit with further precipitation of precious metal fractions in dredging mats mounted on the bottom of the vibrating sluice, while the uniformity is longitudinally - the transverse movement of the pulp in the vibrating sluice is controlled by the engine speed, the irrigation system consists of pipelines with nozzles connected to the pump, mounted on the walls of the loading hopper and inside the scrubber-butare, the outlet of the loading hopper is closed with a grate, which ensures the retention of sand fractions in the mentioned bunker, the dimensions of which exceed the step of the grate, and their further disintegration in the loading hopper, inside the scrubber butary at the exit to the dump tray, a nugget trap is made in the form of a pocket, which ensures trapping due to centrifugal force and gravity heavy fractions of sands exceeding the size of the sieve of the sowing part of the scrubber-butara and not subjected to disintegration. 3 w.p. f-ly, 4 ill.

Description

The utility model relates to devices and systems for separating solid materials using liquids, concentration tables or jigging machines [B03B 9/00, B03B 5/02, B03B 5/56].

Known from the prior art METHOD AND DEVICE FOR ENTRAINING SANDS OF ALLOWER DEPOSITS OF PRECIOUS METALS [RU 2736020 (C1), publ. 11/11/2020], including the supply of material, its disintegration, classification into fractions with removal of waste rock to the dump and enrichment of the fraction in the lock, characterized in that they initially set the direction of rotation of the vibration motor to set the direction of the vector of the driving force of the vibration motor relative to the center of mass of the vibrating screen and the angle of inclination of the stencils of the lock, the preliminary disintegration of the source material containing precious metals is carried out in the hopper, and the resulting pulp from the hopper at an angle of 5 to 15°, preferably 10°, ensuring the optimal speed and uniformity of the feed flow of the pre-disintegrated pulp is fed to vibrating screen and carry out its final disintegration, the classification of the washed material is carried out on a vibrating screen installed at an angle of 5 to 15 °, preferably 10 °, ensuring uniform movement of the pulp along the sieves of the vibrating screen under action due to the influence of gravity and the exciting force of the vibration motor and the optimal time for disintegration of screening into fractions +55 mm and -55 mm with the removal of the fraction +55 mm to the dump, -55 mm and +28 mm with the removal of the fraction +28 mm to the dump and -28 mm, at the final stage, separate enrichment of pulp with a fraction of 28 to 0.2 mm is carried out with separation into concentrate and tailings in an inclined sluice from 8° to 12° with a groove pitch of not more than 0.1 m at a groove height of 1.5 up to 2.5 sizes of minus fraction.

The disadvantage of this analogue is the complexity of the design and the difficulty of repair in the field.

The prior art known METHOD FOR SELECTING CLAY AND CLEANING GRAVEL AND SAND AND A DEVICE FOR SELECTING CLAY AND CLEANING GRAVEL AND SAND [RU 2279317 (C2), publ. July 22, 2004]. In the method of extracting and cleaning gravel and sand, the corresponding flow is washed in a rotating drum, the mixture is fed into it along spiral trajectories in a cascade mixing mode, using pressure jets of water directed to the cleanable stream of gravel or sand mixed in a rotating drum, while feeding jets of water are carried out through nozzles installed coaxially along the axis of rotation of the drum and interconnected with the possibility of relative coaxial angular displacement, the water nozzles of which are arranged in a row, and the washed particles and loosened, as well as pounded pieces of clay are removed through windows located along the length of the drum with calibrated sieves, the unloading of cleaned gravel or sand is carried out through an unloading device located at the upper end of the drum and made in the form of a grate grate nozzle fixedly connected to the frame, made of metal rods rolled into rings and covering the upper end of the drum, and that also installed with a gap along the axis of the latter, and the spirals of the drum are made to extend beyond the latter from the unloading side and rotate in the lattice nozzle of the unloading device.

The disadvantage of this analogue is the complexity of the production line in terms of the separation of fractions into constituent parts.

The closest in technical essence is FLUSHING DEVICE FOR EXTRACTION OF GOLD [RU 2392055 (C1), publ. 06/20/2010], a washing device for gold recovery, including a hydraulic monitor, a hydraulic cradle, a hydraulic elevator, a pressure slurry pipeline, a hydraulic screen, a deep filling lock, fine filling locks, characterized in that the hydraulic screen is installed between the deep filling lock and fine filling locks and is made up of two parts, the first part of the hydroscreen is installed along the flow of pulp from the deep filling sluice, and the second part of the hydroscreen is located across the direction of the oversize material from the first part of the hydroscreen, while the grid of the first part of the hydroscreen is made articulated with the grid of the second part of the hydroscreen by means of a transition wall, and the grid of the second part of the hydroscreen passes into the guide chute in the end part, while the undersize section of the hydroscreen is connected to fine filling locks.

The disadvantage of the prototype is the low recovery factor of precious metals due to the design features of the device associated with a low level of disintegration of the source material and significant weight and size indicators of the device.

The purpose of the utility model is to eliminate the shortcomings of the prototype.

The technical result of the utility model is to increase the recovery factor of precious metals.

The specified technical result is achieved due to the fact that the device for extracting precious metals from sands, containing a loading hopper, screening grates, a gateway, a dumping chute and an irrigation system, is characterized in that it additionally contains a scrubber butara mounted on the frame of the device under the loading hopper and made with the possibility of mechanical disintegration of sands, and an unloading hopper mounted under the sowing surface of the scrubber butary at an angle to the upper part of the vibrating sluice with the possibility of supplying pulp of disintegrated and fractionated sands from the scrubber butary to the upper part of the vibrating sluice located in the lower part of the device frame, the vibration lock on the frame is mounted on sliders that provide a change in the angle of inclination of the vibration lock, and is movable with the possibility of reciprocating motion perpendicular to the longitudinal axis of the device, while the reciprocating motion of the vibration lock is made from an engine mounted on a ra me with the possibility of involving the laminar flow of the pulp in its upper layers during the transverse reciprocating movement of the vibrating sluice into the circuit with further precipitation of precious metal fractions in drag carpets mounted on the bottom of the vibrating sluice, while the uniformity of the longitudinal-transverse movement of the slurry in the vibrating sluice is regulated by the engine speed, the system irrigation is pipelines with nozzles connected to the pump, mounted on the walls of the loading hopper and inside the scrubber-butara, the outlet of the loading hopper is closed with a grate, which ensures the delay in the said hopper of sand fractions, the dimensions of which exceed the grate spacing, and their further disintegration in the boot bunker, inside the scrubber-butare at the outlet to the dump tray, a nugget trap is made in the form of a pocket, which ensures the capture due to centrifugal force and gravity of heavy sand fractions exceeding the size of the sieve of the sowing part of the scrubber-butare and does not subjected to disintegration.

In particular, the nozzles are made adjustable with the possibility of changing the direction of the disintegrating liquid jets.

In particular, the angle of inclination of the vibration lock is chosen from 6 to 10 degrees.

In particular, the operating reciprocating motion of the vibrogate is set to 60 to 78 cycles per minute.

Brief description of the drawings.

In FIG. 1 and 2 show a general view of a device for extracting precious metals from sands.

In FIG. 3 shows a side view of a device for extracting precious metals from sands.

In FIG. 4 shows a front view of the scrubber butary.

The figures indicate: 1 - carrier frame, 2 - loading hopper, 3 - scrubber-butara, 4 - support rollers, 5 - thrust roller, 6 - mesh, 7 - nugget catcher, 8 - unloading hopper, 9 - vibrating sluice, 10 - moldboard tray, 11 - corrugations, 12 - flow direction bars, 13 - vibrating lock shaft, 14 - eccentric, 15 - motor, 16 - transmission, 17 - reducer, 18 - scrubber butary shaft, 19 - pressure head, 20 - pipelines, 21 - irrigation pipes, 22 - scrubber-butter irrigation nozzle, 23 - water pistol, 24 - counterflow lifters, 25 - adjusting sliders, 26 - lever, 27 - dredge carpets.

Implementation of the utility model.

The device for extracting precious metals from sands consists of a supporting frame 1 (see Fig. 1), made of a metal profile and consisting of vertical posts connected by horizontal crossbeams (not shown in the figures). In the upper part of the carrier frame 1, a loading hopper 2 is mounted, formed by side walls tapering downwards, in the lower part of which an outlet is made. The hopper 2 is made with the possibility of being placed inside in the lower part of the transverse grate with a cell pitch of 50 mm (not shown in the figures).

The scrubber-butara 3 is mounted on support rollers 4 (see Fig. 2) mounted on the carrier frame 1 under the scrubber-butara 3, holding the said scrubber-butara 3, and the thrust roller 5, mounted on the carrier frame 1 and holding the scrubber -butaru 3 in the longitudinal plane. Mentioned support 4 and thrust 5 rollers 4 are rubber-coated. The outlet of the loading hopper 2 is directed to the inlet of the scrubber 3. The scrubber 3 is made in the form of a cylinder, in the central part of which a hole is made along the perimeter, closed by a mesh 6 with a cell of less than 10 mm, with the possibility of acting as a sowing part. In the lower part of the scrubber-butary 3, a nugget trap 7 is mounted, made in the form of an annular pocket. In the scrubber-butare 3 around the circumference outside the zone of the sowing part, counter-current lifters 24 are mounted (see Fig. 4).

Under the scrubber 3 on the carrier frame 1 (see Fig. 1), at an angle from the scrubber 3, an unloading hopper 8 is mounted, which ensures the supply of pulp from the scrubber 3 into the upper part of the vibrating sluice 9, placed on the transverse beams of the carrier frame 1 under unloading hopper 8 and scrubber-butare 3. From the end under the scrubber-butare 3 on the carrier frame 1 is mounted dump chute 10, made removable and rotatable with the ability to turn to the left or right relative to the scrubber-butare 3. 1, is mounted on adjusting sliders 25 (see Fig. 2), made with the possibility of adjusting the angle of inclination of the vibration lock 9 horizontally from 6 to 10 degrees. Vibrosluice 9 is formed from the side walls and the bottom. Rifles 11 are mounted transversely inside the sluice 9 on its bottom, between which dredging mats 27 are mounted.

In each of the halves of the sluice 9 relative to its longitudinal axis on the corrugations 11 of the sluice 9 at an angle downwards from the side walls to the center in steps, flow direction strips 12 are mounted (see Fig. 1, 3).

On the supporting frame 1 under the hopper 2 on the transverse crossbeams placed the engine 15 (see Fig. 2), connected by means of a transmission 16, for example, a belt or chain, with the shaft of the scrubber butary 18 by the gearbox 17. The shaft of the scrubber butary 18 is chain or belt drive (not shown in the figures) is connected to the means of rotation of the scrubber-butary 3 (not shown in the figures) and the shaft of the vibration lock 13. An eccentric 14 is mounted on the shaft of the vibration lock 13, which engages with the articulated lever 26, mounted to the side wall of the vibration lock 9 with the possibility of converting the rotational motion of the shaft of the vibration lock 13 into reciprocating motion in the transverse plane of the vibration lock 9. The engine 15 is made in the form of an electric or internal combustion engine.

In the upper part, on the walls of the hopper 1, irrigation pipes 21 are mounted, connected by pipelines 20 through a pressure head 19, for example, a fire head coupling pressure head GMN-50, with a fluid supply pump (not shown in the figures). Pipelines 20 are also connected to said pump by a spray nozzle of the scrubber-butare 22, located inside the scrubber-butare 3, and a water gun 23 (see Fig. 1). Irrigation pipes 21 are equipped with nozzles (not shown in the figures) directed inside the hopper 2 and configured to adjust the water pressure and irrigation direction. The spray nozzle of the scrubber-butary 22 is made with the possibility of changing the direction of irrigation and the pressure of the water.

Placement on the supporting frame 1 of the dump tray 10 and the output of the vibrating sluice 9 is made in such a way that allows you to install containers under their outputs for collecting disintegrated material and pulp.

A device for extracting precious metals from the sands works as follows.

The engine 15 with the help of transmission 16 through the gearbox 17 is rotated through the shaft of the scrubber-butare 18, the scrubber-butare 3 and through the shaft of the vibratory lock 13, the eccentric 14, which, in turn, through the lever 26 drives the vibrating lock 9 into reciprocating motion.

The pump is fed through the pressure head 19 into the irrigation pipes 21, to the irrigation nozzle of the scrubber-butary 22 and the water gun 23 water.

The enriched material is fed into the hopper 2 and disintegrated with water from the nozzles of the irrigation pipes 21 against the grate and the walls of the hopper 2. From the hopper 2, the disintegrated material is fed into the scrubber 3, while the grate mounted in the outlet of the hopper 2, retain fractions of the enriched material, the dimensions of which exceed the grate pitch. These fractions continue to disintegrate in the hopper 2.

In the scrubber-butare 3, water flows from the spray nozzle of the scrubber-butare 22, countercurrent lifters 24 and the rotation of the scrubber-butare 3 continue to disintegrate the enriched material. The disintegrated material is divided on the grid 6 of the scrubber-butars 3 into fractions corresponding to the mesh size of the grid 6, for example, into a fraction of +10 and -10 mm, while the grid 6 is made removable with the possibility of replacing it with a grid with a different cell size. The +10 mm fraction of the material is fed to the dump tray 10, and the -10 mm fraction is fed to the unloading hopper 8, from which the enriched material is fed to the upper part of the vibrating sluice 9 due to the inclination of the said hopper 8 and the flow of water from the scrubber butary 3.

In the nugget 7, mounted in the scrubber 3, by using centrifugal force and gravity, heavier fractions of the enriched material are captured, presumably containing particles of precious metal that could not be disintegrated in the hopper 2 and in the scrubber 3. Extraction of the specified material to search for nuggets of precious metals exceeding a size of more than 10 mm, it is carried out after the end of the operation of the device, while to simplify its extraction, a water gun 23 is used, which breaks the mass accumulated in the nugget catcher 7.

In the sluice 9, the disintegrated and fractionated material with water flows is passed through the corrugations 11, while the flow direction strips 12 create zones of low pressure in the pulp flow. The water supply from the motor pump to the cam clutch 19 is carried out with such a pressure that the pulp level on the vibrating sluice 9 does not exceed the upper edge of the flow direction bar 12. Light particles of the disintegrated material are fed into the ephel through the vibrating sluice 9. Particles of precious metal due to gravity are deposited on drag carpets 27.

The uniformity of the longitudinal-transverse movement of the pulp in the sluice 9 is controlled by the speed of the engine 15. For efficient operation and high-quality extraction of precious metals, the working movement of the sluice 9 is from 60 to 78 cycles per minute. With a decrease in the number of cycles of movement of the vibration lock 9, the pulp flow will go beyond the vibration lock 9, and with an increase, the laminar flow of the pulp in its upper layers will not be involved in the circulation, which will adversely affect the precipitation of precious metal fractions in the drag carpets 27.

The angle of inclination of the sluice 9, which is set horizontally to less than 6 degrees, leads to a low speed of movement of the pulp in the sluice 9 and, as a result, to the overflow of the sluice with ephel. The angle of inclination of the sluice 9, which is set horizontally to more than 10 degrees, leads to a high speed of movement of the pulp in the sluice 9 and, as a result, inefficient separation of the pulp into solid and liquid fractions in the sluice 9.

The concentrate is removed from the vibration lock 9 after the end of the operation of the device, while to simplify its extraction, a water gun 23 is used.

EFFECT: increase in the extraction factor of precious metals is achieved due to multi-stage disintegration of sands in the hopper 2 and in the scrubber-butare 3 using liquid jets supplied directionally and under high pressure from the nozzles of the irrigation pipes 21 and the irrigation nozzles of the scrubber-butares 22, into the scrubber -butare 3 due to its rotation and collision of sand fractions both against each other and against the walls of the scrubber-butare 3 and counterflow lifters 24, as well as rarefaction of the pulp flow in the vibrating sluice 9 due to the reciprocating motion of the vibrating sluice 9. In addition, the slope vibration lock 9 from 6 to 10 degrees in the transverse plane ensures a longer stay of the pulp in the vibration lock 9 and its uniform distribution on its bottom and, accordingly, better precipitation of precious metals on the drag carpets 27.

Claims (4)

1. A device for extracting precious metals from sands, containing a loading hopper, screening grates, a sluice, a dumping chute and an irrigation system, characterized in that it additionally contains a scrubber butara mounted on the frame of the device under the loading hopper and made with the possibility of mechanical disintegration of sands, and an unloading hopper mounted under the sowing surface of the scrubber butary at an angle to the upper part of the vibrating sluice with the possibility of supplying pulp of disintegrated and fractionated sands from the scrubber butary to the upper part of the vibrating sluice located in the lower part of the frame of the device, the vibrating sluice on the frame is mounted on sliders, providing a change in the angle of inclination of the vibration lock, and movably with the possibility of reciprocating motion perpendicular to the longitudinal axis of the device, while the reciprocating motion of the vibration lock is made from an engine mounted on a frame with the possibility of engaging in a transverse reciprocating blunt movement of the vibratory sluice of the laminar flow of the pulp in its upper layers into a circuit with further precipitation of precious metal fractions in drag carpets mounted on the bottom of the vibratory sluice, while the uniformity of the longitudinal-transverse movement of the slurry in the vibratory sluice is regulated by the engine speed, the irrigation system is a pipeline connected to the pump with nozzles mounted on the walls of the loading hopper and inside the scrubber-butare, the outlet of the loading hopper is closed with a grate, which ensures the delay in the mentioned bunker of sand fractions, the dimensions of which exceed the step of the grate, and their further disintegration in the loading bunker, inside the scrubber-butares at the outlet a nugget trap is made in the dump tray in the form of a pocket, which ensures trapping due to centrifugal force and gravity of heavy fractions of sands that exceed the size of the sieve of the sowing part of the scrubber-butara and have not undergone disintegration. 2. The device according to claim 1, characterized in that the nozzles are made adjustable with the possibility of changing the direction of the disintegrating liquid jets. 3. The device according to claim 1, characterized in that the angle of inclination of the vibration lock is chosen from 6 to 10 degrees. 4. The device according to claim 1, characterized in that the working reciprocating movement of the vibrogate is set from 60 to 78 cycles per minute.

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