RU2059441C1 - Device for production of auriferous metals - Google Patents

Abstract

FIELD: production of gold and other native metals from auriferous deposits using ore washing. SUBSTANCE: device has receiving hopper, pump plant, head hatch of drum plant, drum screen of the drum plant, stacker, jigging machines, concentration tables to recleaning concentrate of the jigging machines. The device is provided with spiral classifier to dry fine class from point plant which is open through mixer to branch pipe and through control valve to jigging machines and plant for friction drying tail product of the jigging machines. EFFECT: high productivity. 2 dwg

Description

 The invention relates to mining and can be used for the extraction of gold and other native metals from placer deposits by washing.

 A device for gold mining is known, including a receiving hopper, a pumping station, a head airlock of a barrel unit, a drum screen of a barrel unit, a stacker, jigging machines, concentration tables for cleaning the concentrate of jigging machines (see source, prototype).

 This device has the disadvantage that it does not provide complete metal recovery. Losses mainly occur due to the loss of fine gold and related metals, which reduces the efficiency of mining operations and the impossibility of its use for the development of placer deposits of tin and other metals. In addition, work on the known device requires a stop, i.e. loss of time for metal removal, as well as significant difficulties associated with changing the loading scheme (mechanical or hydraulic) depending on the geological conditions of the landfill.

 The aim of the invention is to increase the efficiency of production by increasing the extraction of fine gold, additional extraction of related metals, the ability to use the device at various landfills with mechanical and hydraulic loading, as well as a sharp reduction in time and money for installation and dismantling of the device.

 This is achieved by the fact that the device is equipped with a spiral classifier for dehydration of a small class of barrel unit, communicated by means of a mixer with a pipe and a regulating valve with jigging machines and a unit of fractional dehydration of the dump product of jigging machines.

 The presence of new elements, their relationship and relative position allow us to consider the invention to meet the criterion of "novelty."

 The new device provides additional disintegration and two-fraction screening, collecting waste water by the classifier, supplying clean water through an original nozzle with an adjustable gate, which allows creating the optimal degree of dilution of dehydrated sands with clean (fresh) water according to the technical scheme of gravity hydraulic enrichment of gold and tin-containing sands, and the use of jigging machines from concentration tables instead of traditional fine filling gateways significantly increase efficiency mining operations due to reduced losses of fine gold and related metals. The new device is applicable for the development of alluvial deposits of gold, tin and complex deposits with various metals, it reduces the time of metal removal, solves the problem of choosing a washing plant loading scheme depending on the mining and geological conditions of the landfill, which significantly increases productivity and improves working conditions.

 The combination of new features of the device provides a separation in the slurry of the slurry metal, which is not extracted by existing nodes. A new set of devices and units provides additional extraction of that part of the metal that is not extracted separately in each unit taken separately. Only the interaction of new devices in a certain sequence and the introduction of the original mixing nozzle with a control valve ensures the achievement of the goal, therefore, the proposed technical solution meets the criterion of "significant differences".

 In FIG. 1 shows the main units of the proposed flushing unit with hydraulic or mechanical loading, and a diagram of the gravitational hydraulic enrichment of gold and tin-containing sands indicating the size of the fractions; in FIG. 2 circuit mixer.

 In statics, the device is a complex of twelve easily assembled modular units of the device, equipped with a feed hydraulic elevator and a flushing hydraulic monitor, a feed hopper or a bulldozer hopper with a carriage feeder and a conveyor belt, as well as a pump station operating on a closed water circuit.

 On the diagram (Fig. 1): 1 pumping station for elevator feed; 1a pumping station of the transport feed; 2a receiving hopper-feeder, belt conveyor and watering apparatus; 3 head gateway deep filling.

 The device operates as follows. From the placer, sand is fed by a bulldozer to the receiving hopper 2. From the hopper, the rock in the form of a hydraulic mixture is fed by a feed elevator (or in dry form) by a conveyor belt to the head airlock of the barrel unit. Then, the slurry is fed by gravity into the scrubber barrel 4, where additional disintegration and two-fraction screening occurs: a class of 20 mm is fed to the spreader 5 and stored in a galefelny dump 13, and the fine fraction 20 is fed by gravity to the spiral classifier 6. The dehydrated concentrate (sands) in the original mixer 7 and the control valve is liquefied by supplying clean (fresh) water to the optimum degree and fed by gravity to the depositors 8, then the rock voids class 13-20 is fed by gravity to the fractional both vozhivatel 9, after which water and class 3 (gangue) merges with the spiral classifier water in the pond 12, and the class of 13-20, dewatered, mechanically strushivaetsya on spreader 5 and is stored together with Galey. The concentrate class 3 is fed by gravity to the concentration tables 10, after which it is collected in a container 11, and the tails are washed off into the tailing dump 12.

An example of a specific device is designed for installation with a capacity of 1200 m ³ / day. Two bulldozers of the T-170, DET-120M type are used to load the receiving hopper and to clean the landfill. The grate of the receiving hopper is made in the form of sheet perforations with a diameter of 100 mm. A hydraulic elevator with a nozzle with a diameter of 45 mm and working under pressure up to 0.5 MPa is installed in the hopper. The diameter of the supply pipe is 400 mm. The total lifting height of the hydraulic mixture is 8.5 m, the length of the device is 12.5 m without a dump. The width of the device is 6 m. The total weight of the device is 60 tons. The installation of the main units on the supporting skeleton after its installation at the training ground takes 8 people / cm of welding using a crane with a lifting capacity of 16 tons. The complex is moved with bulldozers, after dismantling the main units. The dismantling of the main units is 8 people / cm using a truck crane. The pumping station includes one pump 12 VATH. Pump drive power 12 VAT 300 hp For belt loading, an 8NDV 120 hp pump is used. The width of the deep filling lock is 1 m, the length is 6 m. The scrubber barrel has a mass of 10.8 tons and a drive with a power of 17 kW. The installation angles of the locks 6-8 and 32-36 ^{about the} feed conveyor.

 The new device provides for the capture and extraction of the finest metal inclusions, while the losses are 50% lower compared to the analogue. Additional metal recovery is 7%

Claims (1)

 DEVICE FOR EXTRACTION OF DISCHARGE METALS, including a receiving hopper, a pump station, a head lock of a barrel unit, a drum screen of a barrel unit, a stacker, jigging machines, concentration tables for cleaning the concentrate of jigging machines, characterized in that it is equipped with a spiral classifier for fine dehydration class communicated by means of a mixer with a nozzle and a regulating valve with jigging machines and a unit for fractional dehydration of the dump product of jigging m tires.

Images