The hub of heavy minerals
The invention relates to gravity extraction of useful components when gidrogenizirovannoe the development of placer deposits and weathering crusts. The hub includes a housing mounted with the possibility of oscillations, sieve conical shape, lying on concentric walls forming an annular compartments with piping with valves regulating pressure environment, adequate thickness of sediment material over the compartments, a stationary comb to evenly loosening the total volume of the suspension. The boot device is provided with a nozzle for supplying a source inside the conical sieve below the level of suspended material. Pipe for discharging heavy fraction is equipped with a device for supplying a counter-current protection with adjustable pressure in the form of additional pipe with ball valve and a device for releasing a predetermined volume of a heavy fraction in the form of a removable, transparent, plastic container with ball valve in front of him. The invention improves the extraction of valuable minerals due to the exclusion of vzaimozatmeniya partial fractions. 1 Il. The invention relates to a gravity concentration of minerals and can be used for izvlecheny and weathering crusts.Known jigging machine for ore beneficiation, including housing, consisting of oversize and undersize offices, sieve, located in the housing, the movable housing to create a pulsation device to download the source material and unloading light and heavy fraction (USSR Author's certificate 1502107, CL 03 In 5/24, 1989).However, this device does not allow to achieve high removal of heavy fractions and their content in the concentrate due to non-uniform fluidization of sediments on its height and complexity of the concentrate output of a given size.The closest to the essential features is the hub of heavy minerals, including housing that is installed with the possibility of vibration, devices for discharging light and heavy fractions. Installed in the housing, the conical sieve, consisting of concentrically arranged discs collected with a gap between them in the packages are installed in isolated compartments of the housing, the compartments have individual piping with valves that regulate the pressure of the working medium in each compartment. Device for discharging heavy fraction is made in the form of a branch pipe connected with the top of the stake is aromasine for periodic discharge of the heavy fraction (RF Patent 2084289 C1, 6 03 IN 5/36).However, this device does not allow to increase the recovery of the most fine fractions of the metal and its content in the concentrate.The main objective of the invention is to provide a device allowing to increase the extraction of heavy fractions and their contents in the concentrate by reducing vzaimozatmeniya minerals.To solve the problem of the inventive device, the hub of heavy minerals, including housing that is installed with the possibility of oscillations, sieve conical shape, lying on concentric walls forming an annular compartments with piping with valves regulating pressure environment, adequate thickness of sediment material over the compartments, boot device, devices for discharging light and heavy fractions, according to the invention is equipped with a fixed comb to evenly loosening the total volume of the suspension, while the boot device is provided with a nozzle for supplying a source inside the conical sieve below the level of suspended material, and a pipe for discharging heavy fraction is equipped with a device for supplying a counter-current protection with adjustable pressure in the form of additional pipe with ball valve for regulating the th, plastic container with ball valve in front of him.The drawing shows a General view of the hub, a longitudinal section.The hub of heavy minerals consists of a cylindrical body 1 placed in it the working of the conical surface of the sieve 2, based on ring 3 compartments isolated from each other by partitions 4, all equipped with private pipelines with valves that regulate the pressure-flow environment. Discharging the light fraction is carried out through pipe 5, is coupled in the lower part of the annular groove 6. The body of the hub is fixed spring supports 7 to the frame 8 and is installed with the possibility of oscillations from installed eccentric disk 9, driven by a motor 10. The hub is provided with a nozzle 11 for supplying the source material to the inside of the cone below the level of suspension. Device for discharging heavy fraction is made in the form of a pipe 13 connected with the top of the conical sieve 2, and is provided with an additional outlet with ball valve 12 for flow of the fluid as well as a removable, transparent, plastic container 14 with the ball valve in front of him. Inward conical sieve 2 is placed fixed comb 16.To the scarfing transparent plastic container 14 with the ball valve in front of him. Through the pipe 12 into the device for discharging the heavy fraction is fed countercurrent clear water, precluding ingress of light fraction in the container 14.In the annular compartments 3 individual tubes undersize water, turns on the electric motor 10, and then boot the device 11 is supplied to the source material in a dry form or in the form of a slurry with a relatively small ratio W:T (liquefaction) inside the cone below the level of suspension. The material evenly pseudogiants through-flow of a medium under pressure, is proportional to the height of the suspension and the relative movement of the dies 16. The top layer, gradually freeing itself from particles smaller density, flows into the annular groove 6 and pipe 5 for discharging the light fraction.Supply source to the inside of the cone reduces the likelihood of removal of very fine fractions of metal (not yet moving into the lower layers) flow of slurry in the annular groove.The dense particles, dropping into the lower layers, reach sieves 2 and under the action of the tangential component of the gravitational force moved him to the top of the conical sieve 2, where the more intense the process of self-purification of random particles easily Eloy fraction is periodic unloading it through mated with the top of the cone 2 pipe 13 by reducing the pressure of the flow medium, while in the container 14 will not visually see the flow of the concentrate. The proposed device when the cleaners placer gold will help to regulate eat concentrate the specified color. After unloading the heavy fractions of the locking counter-current flow of the medium through the pipe 12 is returned to its original position and the accumulation of heavy fractions in the top of the cone continues. Overlaps the valve upstream of the container 14 and the container is replaced by empty and fill it again with clean water from the pipe 12.The device is used as follows.Example 1. The Deposit is oxidized alunatic gold ore weathering crusts with a high content of clay fraction 80% work in an open way with the use of hydraulic design. The ore feed at the perforated surface of 20 mm hydromassage carried out by a bulldozer. Erosion of rocks on the horizontal and tilt table hydromassage perform a giant by rotational mixing in the pulp clay voluntati ore from near edge along the pile to the far edge. Grunteneem Grau-400/20 the pulp fed to the gateway of deep content EMP-50 and barrel in the crash. Fraction 10 mm serves on the set of locking is the Eraly of the prototype. The average gold content in voluntati grade of 2.36 g/T. the Volume weight of the dry ore is 1.65 t/m3.The performance of the mining complex of 26 t/H. the Use of operational time for washing and processing of ore per day is 23 hours. The duration of Promzona - 180 working days. Gold recovery was 68%. At one stage enrichment obtained concentrate of metal content of 32%.Example 2. Developed Deposit and mining method similar to that shown in example 1.Spolecnosti concentrate with a catching surface gateways minor direction is sent to the hub of heavy minerals through pipe boot device inside conical sieve below the level of the suspension in which the device for discharging the heavy fraction is supplied by a pipe counterflow flow environment and a removable, transparent, airtight, plastic container, which get rich concentrate containing gold 48%.The performance of the mining complex 15,76 m3/PMGold recovery was 69%.Proposed the use of the device, the Hub of heavy minerals in the development alunatic Ola one prometon 2.5 kg and get rich concentrate 18% higher.
ClaimsThe hub of heavy minerals, including housing that is installed with the possibility of oscillations, sieve conical shape, lying on concentric walls forming an annular compartments with piping with valves regulating pressure environment, adequate thickness of sediment material over the compartments, boot device, devices for discharging light and heavy fractions, characterized in that it has a fixed comb to evenly loosening the total volume of the suspension, while the boot device is provided with a nozzle for supplying a source inside the conical sieve below the level of suspended material, and a pipe for discharging heavy fraction is equipped with a device for supplying a counter-current protection in the form of additional pipe with a ball valve to regulate the pressure of the medium and device for the production of a given volume of heavy fractions in the form of a removable, transparent, plastic container with ball valve in front of him.
FIELD: mining industry; devices for minerals dressing using a method of heavy minerals separation.
SUBSTANCE: the invention is pertinent to mining industry, in particular, to devices for minerals dressing using a method of heavy minerals separation. The heavy minerals cone separator includes a body, a drive, an airlift with a receiving box, a drainage sifter with a drain pan and a rabble. A zone of separation is partitioned from a stagnation zone by a ring-type cleaver-pusher. The cleaver-pusher is fixed on the rabble. The drain pan of the drainage sifter is supplied with a curvilinear launder. The launder is passing along the course of rotation of the rabble into the zone of separation. An internal wall of the body and the ring-type cleaver-pusher form the zone of separation. The diameter of the cleaver-pusher makes 0.2-0.4 of the diameter of the cylindrical part of the body. Depth of its immersing in suspension concerning to the level of overflow makes 0.3-0.5 m. The drainage sifter is displaced relatively to the axis of the rabble rotation and is installed under the receiving box of the outside airlift. The technical result is an increase and stabilization of a density of suspension in the zone of separation.
EFFECT: the invention ensures an increase and stabilization of a density of suspension in the zone of separation.
3 cl, 2 dwg, 1 ex
FIELD: mining engineering; mechanics.
SUBSTANCE: gravity concentrator includes a conical chamber with downward facing cone vertex, a central pulp charging tube, which can rotate in said chamber, a nozzle to supply water into lower part of said chamber, and containers to collect light and heavy fractions of material. Concentrator is equipped with a perforated conveyor worm, which is rigidly connected with said central tube and provides for bottom-up pulp transfer within chamber. Nozzle is positioned coaxially with said central tube to create loosening fluid flow, which passes through splitter and filter in the direction opposite to that of the pulp delivered from said tube.
EFFECT: improved efficiency of valuable heavy fraction extraction, improved concentrator throughput.
SUBSTANCE: invention relates to the field of minerals concentration, in particular concentration of ores and alluvial deposits by means of their wet gravitation separation in flow of pulp that flows along inclined working surface. Separator includes feeder and at least two double-level stages of separation, in each level of which the following components are serially arranged along vertical axis - pulp distributor, working surface in the form of tilted cone-shaped surface, unloading unit with splitter, besides unloading unit comprises outputs of heavy and light fractions, and lower perimetres of working surfaces in levels of all double-level stages of separation are arranged as identical. In each double-level stage of separation perimetre of upper part of working surface of lower level is less than perimetre of upper part of working surface of upper level.
EFFECT: increased efficiency of separation.
3 cl, 2 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to dressing of minerals, in particular, gold bearing sands. Proposed method comprises tangential feed of pulp into top working zone, forming pulp flow swirled crosswise and vortex flows inside chutes over their entire length wherein, at centrifugal forces acting on mineral particles, they are classified to density. Heavy particles are precipitated on inclined bottom of chutes to roll downward to make concentrate while light particles flow off the chute in swirling pump flow in tails. Intercone space is formed by setting limiting cone coaxially with concentrator cone. Said intercone space thickness is adjusted to maintain constant centrifugal force. Additionally, water is fed into intercone space working zone top part to form pulp and water flow swirling crosswise. Proposed apparatus comprises conical concentrator with cone-shaped working chamber with radially narrowing chutes, branch pipe for tangential feed of pulp and separation products unloading means. Said concentrator is furnished with limiting cone arranged coaxially with working chamber with adjustable clearance from chute wall edges. It comprises also water tangential feed branch pipe and pump feed branch pipe arranged at working chamber top section. Tail unloading means represent circular deflector arranged at cone bottom section coaxially with concentrate discharge opening.
EFFECT: higher efficiency of separation.
2 cl, 1 dwg