RU2392055C1 - Flushing device for gold recovery - Google Patents

Abstract

FIELD: metallurgy. ^ SUBSTANCE: invention refers to mining and can be applied for extraction of gold and other heavy metals from gravel deposits by sluice flushing method. Flushing device for gold recovery includes water jet, water washing table, water elevator, pressure sludge line, water sieve, deep sluice, shallow sluice. Water sieve is mounted between deep sluice and shallow sluices and is comprised of two parts. First part of water sieve is placed along sludge feed flow from deep sluice, while the second part of water sieve is placed across direction of fore-grate material feed from first sieve part. Grate of first sieve part is conjugated with grate of the second sieve part by transit wall, and grate of the second sieve part passes into guide chute at the end part. After-grate section of water sieve is connected with shallow sluices. ^ EFFECT: enhanced efficiency of dressing, reduced power consumption of sand processing. ^ 2 dwg

Description

The invention relates to mining and can be used for the extraction of gold and other heavy minerals from alluvial deposits by washing at locks.

A well-known flushing device for gold mining, including a hydraulic monitor, hydraulic guard, hydraulic elevator, pressure pulp line, deep filling sluices (1).

The disadvantage of this washing device is the low recovery of gold of small classes due to the lack of fractional separation of sands.

A known flushing device for gold mining, including a loading device, a conveyor belt, dump conveyor, fine filling sluices (2).

The disadvantages of this washing device are the inability to extract large (nuggets) of gold, the loss of gold due to poor sand disintegration, the presence of moving parts, additional energy consumption for the drive of the barrel unit.

A known flushing device for gold mining, including a loading device, a conveyor belt, a barrel unit with double perforation, a dump conveyor, fine filling locks, deep filling locks (3).

The disadvantages of this washing device are the loss of gold due to poor sand disintegration, the presence of moving parts, additional energy consumption for the drive of the barrel unit.

The closest in technical essence to the proposed washing device is a washing device including a hydraulic monitor, hydraulic guard, hydraulic elevator, pressure pulp line, deep filling locks, fine filling locks, a conical hydraulic screen installed after the pressure pulp line and connected to the thickener through the outlet pipe of the undergrate conch grate compartment and the outlet pipe of the oversize compartment of the conical hydro screen is connected to the deep filling locks, while the output element t of thickener is connected to fine filling locks, and the thickener drain pipe is connected to deep filling locks (4).

The disadvantages of this flushing device are the presence of losses of small fractions of rock mass and gold in the over-the-top product, losses of large fractions of gold at the deep filling gateway due to the need to supply additional quantities of process water, loss of gold at the fine filling locks due to the excess amount of technological water.

The technical result is to increase the efficiency of enrichment and reduce energy costs for the processing of sand.

The technical result is achieved by the fact that in the washing device for gold extraction, including a hydraulic monitor, hydraulic guard, hydraulic elevator, pressure pulp line, hydraulic screen, deep filling lock, fine filling locks, a hydraulic screen is installed between the deep filling lock and small filling locks and is made of two parts, the first part of the hydraulic screen is installed in the direction of the pulp from the sluice of deep filling, and the second part of the hydraulic screen is located across the direction of receipt of the oversize mat rial from the first part of the hydraulic screen, while the lattice of the first part of the hydraulic screen is articulated by means of the transition wall with the lattice of the second part of the hydraulic screen, and the lattice of the second part of the hydraulic screen passes into the guiding groove in the end part, while the sublattice compartment of the hydraulic screen is connected to the fine filling sluices.

The flushing device is shown in the drawings.

In Fig.1 is a top view of the flushing device, Fig.2 is a General view of the lock complex and the hydraulic screen of the industrial device.

The flushing device includes a hydraulic monitor 1, a hydraulic guard 2, a hydraulic elevator 3, a pressure pulp line 4, a hydraulic screen 5, a deep filling lock 6, fine filling locks 7. A hydraulic screen 5 is installed between the deep filling lock 6 and small filling locks 7 and is made of two parts 8, 9. The first part 8 of the hydraulic screen 5 is installed in the direction 10 of the pulp coming from the deep filling gateway 6, and the second part 9 of the hydraulic screen 5 is located across 11 the direction of receipt of the oversize material from the first part 8 of the hydraulic screen 5. Lattice 12 p The first part 8 of the hydraulic screen 5 is made articulating by means of the transition wall 13 with the grill 14 of the second part 9 of the hydraulic screen 5. The lattice of the second part 14 of the hydraulic screen 5 passes into the guide groove 15 in the end part 16. The undergrowth compartment 17 of the hydraulic screen 5 is connected to the small filling gates 7.

The washing device operates as follows.

From the placer, the sands are fed by a bulldozer to the hydraulic damper 2 and washed out by the hydraulic monitor 1. Oversize fractions are discharged by the jet of the hydraulic monitor 1 into the dump, and the smaller fractions pass through the openings of the sieve of the hydraulic damper 2 and served as a hydraulic mixture by the hydraulic elevator 3 through the pressure pulp 4 to the deep-filling gate 6. the deep filling gateway 6 pulp enters the first part 8 of the hydraulic screen 5, installed along the pulp 10 from the deep filling gateway 6. By means of the lattice 12, fractional separation is carried out e and the supply of oversize material to the grate 14 of the second part 9 of the hydraulic screen 5, which is articulated by means of the transition wall 13 with the grate 12 of the first part 8 of the hydraulic screen 5 and installed across 11 the direction of flow of material from the first part 8 of the hydraulic screen 5. Step difference between the levels of the first part 8 and second part 9 of the hydraulic screen 5 creates an additional hydrodynamic effect on the material to be separated, contributing to the additional destruction of the solid component of the pulp and their subsequent fractional separation. Oversize material enters the end portion 16 of the guide groove 15 into the blade. The under-sieve material of the hydraulic screen 5 enters through the under-sieve compartment 17 to the fine filling sluices 7.

The advantage of the proposed design is that due to the maximum (up to 95%) water intake and the minus fraction of the rock mass of useful components into the under-sieve space of the hydraulic screen, sand is enriched in the optimal mode. As a result of this, at gateways of fine filling, more complete extraction of not only small, but also large fractions of the useful component occurs. The flushing device has no moving parts. For the separation of placer sands in a hydraulic screen, additional energy costs are not required.

Information sources

1. Bogdanov E.I. Equipment for transporting and washing sand of placers. M., Nedra, 1978, p.163, Fig. 64.

2. Matsuev L.P. Calculation and operation of flushing devices. Magadan, 1958, p. 166, Fig. 62.

3. Bogdanov E.I. Issues of technological progress in washing sand of placers in deposits of the North-East of the USSR. Magadan, Book Publishing House, 1967, p. 72, Fig. 11.

4. Patent No. 2149696. RF Gold flushing device. / Podshivalov V.S., Ponomarchuk G.P., Mamaev Yu.A., Litvintsev V.S., Bull. No. 15, 05/27/2000

Claims (1)

A washing device for gold extraction, including a hydraulic monitor, a hydraulic guard, a hydraulic elevator, a pressure pulp line, a hydraulic screen, a deep filling lock, fine filling locks, characterized in that the hydraulic screen is installed between a deep filling lock and small filling locks and made of two parts, the first part of a hydraulic screen installed along the pulp from the deep filling sluice, and the second part of the hydraulic screen is located across the direction of oversize material from the first part rogrohota, wherein the first grating portion Hydro formed by mating the transition wall with the lattice Hydro second portion, and a second grating portion Hydro moves into the guide chute at an end portion, wherein the undersize Hydro compartment connected with gateways fine filling.

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