Unit of hydrocyclones incorporated with fine ore suspension separation system

FIELD: process engineering.

SUBSTANCE: invention relates to ore suspension separation, particularly, to hydrocyclone units used in fine ore suspension separation systems in mining, metallurgy, chemical industry, etc. Proposed system comprises unit of hydrocyclones, pulp distributor whereto connected are one to eight hydrocyclones with total capacity of 550 to 2600 m3/h of separated ore suspension. Unit hydrocyclones are mounted on common frame. Every hydrocyclone is shaped to tapered-cylinder housing with intake chamber, feed and discharge branch pipes, and sand bed integrated with those of other hydrocyclones and provided with inner lining of wear resistant material. Hydrocyclone housing cylindrical part ID is 2.9-3.6 times larger than that of discharge branch pipe while cross-section of the latter makes 1.27-1.89 of cross-section area of feed branch pipe and is 5.0-14.0 times larger than that of sand bed outlet channel at taper angle of hydrocyclone housing bottom of 16-22 degrees.

EFFECT: higher efficiency and quality of suspension separation, power savings, continuous operation.

11 cl, 3 dwg

 

The invention relates to techniques for the separation of suspensions of ores, namely blocks of hydrocyclones used in the systems of fractional separation of suspensions ore fine grinding in technological complexes for processing of ore, and can be used in mining industry, ferrous and nonferrous metallurgy, chemical and other industries.

Known hydrocyclone battery, in which the individual cyclones in the United removable block by rigidly interconnected top and bottom plates, dividing the cavity formed by the housing of the battery of hydrocyclone, the chamber clarified product selection and slurry chamber and a sludge chamber is further provided with a socket for a partial return of the condensed product in the cavity of the water supply system (EN 2312713 C1, 20.12.2007).

Known battery hydrocyclone in which the individual hydrocyclones United in the battery, with each hydrocyclone is made with a cylindrical housing with a constant cone angle, includes the supply and discharge pipes and gravel nozzle and the receiving chamber. The cyclone made with spiral input pulp half the length of the circumference (Waeckerlin, Gsbooty, Bavla and other Reference enrichment of ores. Preparatory processes. 2nd ed., Rev. and ext., M.: Nedra, 1982, s-189).

Known hidrotic is he, including a cylindrical housing with a tangential inlet pipe and drain pipe, sand hole. The hydrocyclone further comprises hermetically connected to the cyclone vortex chamber including a cylindrical housing with a cone angle equal to 120°, containing tangential feeding port, located on the cylindrical part and connected with means for supplying water, and the sand pipe, placed in the conical part. The conical hydrocyclone part descended into a vortex chamber to a depth of 3/4 of its cylindrical part (RU 2375120 C1, 10.12.2009).

Known hydrocyclone containing conical casing tube feeding the initial suspension and the nozzles for removal of clarified and condensed fractions of the suspension. The cyclone is equipped with a device for draining condensed fraction of the suspension, made in the form of two mounted coaxially to the body of the hydrocyclone horizontal disk, the bottom of which is fixed on the shaft and has a possibility of rotation and vertical movement, and the top has the shape of a ring whose inside diameter equal to the diameter of the pipe to drain the condensed fraction of the suspension is rigidly connected to the housing of the cyclone, forming a radial channel, and including a tank for condensed fraction of the suspension, rigidly connected with the upper disk and forming with it a cylindrical who the Amer with pipes for draining condensed fraction suspension (EN 2372147 C1, 10.11.2009).

Known hydrocyclone, comprising a housing with a tangential inlet, drain and sand pipes, camera collecting photoproducts, cylindrical Cup and swirl vane mounted coaxially outlet socket. In the lower conical part of the cyclone coaxially with it installed hollow insert teardrop shape, is fixed coaxially sand the pipe, the output of which is installed bumpers (EN 2385190 C1, 27.03.2010).

Known hydrocyclone comprising a cylindrical body with a constant cone angle, the supply and drain pipes, sand nozzle and the receiving chamber. The cyclone made with tangential entry of the pulp tangent to the cylindrical working surface of the receiving chamber, and the lining of a flowing part of the hydrocyclone made tiles from stone casting (Svishenko, Appalaccia, Air and other Reference concentration of ferrous metals. 2nd ed., Rev. and ext. ed Sphingosine, M.: Nedra, 1982, s).

The disadvantages of the known technical solutions are relatively complicated design of these known hydrocyclone units, the lack of perfect technological parameters and mutual coordination geometry sections technological channels of hydrocyclones, namely nutrients, drain pipes and sand nozzle, determine what their hydrodynamic balance of the partial flows and consequently increased energy consumption when not of a high enough quality fractional separation of suspensions, including containing particles of ore fine grinding, the lack of a sufficiently prolonged turnaround operation of these hydrocyclones, the unresolved issues of high resistance protection against abrasive erase surfaces, depends on the duration of the turnaround maintenance of the system. This increased wear of these surfaces reduces their lifespan and leads to a deterioration in service quality division of fractions of small particles, including by improving the imbalance output sections nutritious, drain and sand channels.

The problem solved by the present invention is the development of the hydrocyclone unit, providing increased efficiency and quality of the ore separation fractions by reducing energy costs and improving the stability and duration of the block without stopping for repairs and replacement of abrasion parts, improving design of hydrocyclones, systems and hydraulic parameters of the interacting nutrients and drain pipe, and a sand nozzle hydrocyclone in the developed block of hydrocyclones.

The problem is solved in that the proposed block hydrocyclone system of fractional separation of suspensions ore fine grinding according to the invention includes a dispenser suspension - pulp, to the mu connected from one to eight hydrocyclones total capacity from 550 m to 2600 m 3/h shared the ore suspension, mounted on a common support, preferably, frame type, with each hydrocyclone contains a cylindrical housing with a receiving chamber in the upper part, which is connected nutritious connection with the distributor of pulp, and has a lid with a drain pipe projecting into the housing, at least most of the height of chamber, and sand nozzle, United below the same manifold with the same nozzles other hydrocyclones back on the final grinding separated in the hydrocyclone unit oversized large particles, in addition each hydrocyclone, preferably, made the rallying from a set of cylindrical sections and the conical parts of its volume and kropielnicki external configuration of the first of these sections, and has an internal lining of wear-resistant material, such as rubber or polyurethane, while in the height range from the bottom of the reception chamber to the top of the conical part of the cyclone contains from zero to two cylindrical sections, and its tapered portion contains, as a rule, at least two sections, each hydrocyclone mentioned block is made with a capacity of up to 450 m3/h noise through it mentioned partial fractions of the ore slurry, while within the indoor diameter of the cylindrical part of the housing, defines the greatest centrifugal runway three-dimensional spiral swirl flow of the suspension is made greater than 2.9÷3.6 times the output diameter of the drain pipe, and the cross-sectional area of the latter is 1,27÷1,89 cross-sectional area of nutritional pipe and 5.0÷14,0 times the cross-sectional area of the outlet channel sand nozzle at the angle of the internal taper of the lower part of the body of the hydrocyclone of 16÷22 degrees.

This dispenser can be performed with the body in the form of a cylinder, lined on the inner side resistant to abrasion material such as rubber or polyurethane and is provided in the lower housing inlet flange socket for detachable connection with pressurised slurry pipeline, said system suspension separation of ores and output holes with flanged connections for connection with a nutrient nipples, telling him with hydrocyclones and outlet openings of the distributor is made, preferably, coaxial with the inlet holes of the receiving chambers of hydrocyclones, additionally, the dispenser is equipped with a cover, on which is mounted a pressure sensor of the pulp at the entrance to the block of hydrocyclones.

A supply pipe of the cyclone can be performed with variable shape parameters, changing from the curvilinear in cross with the treatment at the site of exit of the distributor to a rectangular shape on the approach to the hydrocyclone with the opportunity oriented along the axis of the latter slotted input in the receiving chamber of the hydrocyclone.

Prefabricated cylindrical and conical sections of the hydrocyclones included in the block can be provided with end flanges for detachable connection with adjacent sections, with at least one section along the height of the hydrocyclone is provided on the outer side of the support elements, preferably in the form of brackets, the supporting surface of which is aligned in height with the plane of the support equal to the support block.

A supply pipe on the outlet of the dispenser may be mounted coaxially with the radius of the latest and tangentially communicated with the receiving chamber of the hydrocyclone, preferably paired to the farthest wall with the outer wall of the reception chamber of the hydrocyclone.

The hydrocyclone can be made with an inner diameter of the cylindrical part constituting 150÷250 mm

A supply pipe of the cyclone can be performed with a hole equivalent to the diameter of which is 25÷115 mm

The drain pipe of the cyclone can be performed with a diameter of 25÷115 mm

Sand nozzle hydrocyclone can be performed with a diameter of 8÷40 mm

Block of hydrocyclones may be designed mainly for processing and separation of ores iron ore deposits of the type of the Kursk magnetic anomaly.

Block hydrocyclones can be designed with the possibility of fractional separation suspend the th polymetallic, including gold-bearing ores with inclusions of other precious and rare earth metals.

The technical result provided by the present set of features, is to develop a block of hydrocyclones, providing increased efficiency and quality of the separation of suspensions ores due to the developed invention interrelated structural and technological parameters are combined in a block of hydrocyclones and found in the invention of the sizes and ratios of the areas of cross-sections nutritious and drain pipes, as well as sand nozzle that is optimal for a received combination of size, configuration and the angle of the taper of the hydrocyclone under the specified amount and density of the partial two-phase medium - aqueous ore slurry comprising 1,1÷1.6 t3/m When specified in the invention the ratio of the cross sections nutritious and drain pipes and the pressure of the slurry at the entrance to the hydrocyclone unit 0,010÷0,0016 MPa in hydrocyclones is set to the mode of flow of the pulp in which there is complete separation of conditioned fractions ore fine grinding, and adopted in the hydrocyclone, the interval of values of the diameter of the sand nozzle corresponds necessary and sufficient for a conclusion from it through the sand nozzle substandard large particles when their percentage content in the pulp, is characteristic is m for technology fine grinding ore mining and beneficiation plants, under the parameters of which have developed a set of hydrocyclones.

The invention is illustrated by drawings, where:

figure 1 shows the block hydrocyclones with dispenser, front view;

figure 2 - the technological design of the hydrocyclone in the block variant with five hydrocyclones, skommutirovany with nutrient dispenser nozzles, top view;

figure 3 - the hydrocyclone, front view.

The hydrocyclone unit 1 of the system of fractional separation of suspensions ore fine grinding dispenser contains 2 suspension - pulp, which is connected to from one to eight hydrocyclones 1 total capacity from 550 m to 2600 m3/h shared the ore suspension, mounted on a common support 3, preferably, the frame type. Each hydrocyclone 1 contains a cylindrical housing 4 with the receiving chamber 5 in the upper part, which is connected nutritious pipe 6 with the dispenser 2 pulp, and has a lid with a drain pipe 7, protruding into the housing 3, at least most of the height of the reception chamber 5, and sand nozzle 8, the joint below the same manifold with the same nozzles other hydrocyclones 1 back on the final grinding separated in the hydrocyclone unit 1 oversized large particles. Each hydrocyclone 1, preferably made teams from a set of clubs is 9 and 10 respectively of cylindrical and conical parts of its volume and kropielnicki external configuration of the first of these sections 9. Each hydrocyclone 1 is equipped with an inner lining 11 of wear-resistant material, such as rubber or polyurethane. In the altitude range from the bottom of the reception chamber 5 to the top of the conical part of the cyclone 1 contains from zero to two cylindrical sections 9 and its conical part contains, as a rule, at least two of the sections 10. Each hydrocyclone 1 of the above-mentioned block is made with a capacity of up to 450 m3/h noise through it mentioned partial fractions of the ore slurry. The inner diameter of the cylindrical part 9 of the housing 4, which defines the greatest centrifugal runway three-dimensional spiral swirl flow of the suspension is made greater than 2.9÷3.6 times the output diameter of the discharge pipe 7, and the cross-sectional area of the latter is 1,27÷1,89 cross-sectional area of nutritional pipe 6 and 5.0÷14,0 times the cross-sectional area of the outlet channel sand nozzle 8 at the angle of the internal taper of the lower shell 4 of the hydrocyclone of 16÷22 degrees.

The dispenser 2 is made with the body 12 in the form of a cylinder, lined on the inner side resistant to abrasion material such as rubber or polyurethane and is provided in the lower housing inlet flange socket for detachable connection with the discharge pipeline of the system separation suspend the th ores and output holes 13 with flange connections for connection with a nutrient nozzles 6, telling him with hydrocyclones 1. The outlet 13 of the distributor 2 is made, preferably, coaxial with the inlet holes of the receiving chambers 5 hydrocyclone 1. The dispenser 2 is equipped with a cover 14 on which is mounted the sensor 15 of the pressure of the slurry at the entrance to the block of the hydrocyclone 1.

A supply pipe 6 of the hydrocyclone 1 is made with variable shape parameters, changing from the curvilinear in cross section at the site of exit of the distributor 2 to a rectangular shape on the approach to the hydrocyclone 1 with oriented along the axis of the latter slotted enter the receiving chamber 5 of the hydrocyclone 1.

Prefabricated cylindrical and conical sections 9 and 10 of the hydrocyclones 1 included in the unit, provided with end flanges 16 for detachable connection with adjacent sections. At least one section along the height of the hydrocyclone 1 is supplied with the external side of the support elements 17 preferably in the form of brackets, the supporting surface of which is aligned in height with the plane of the support equal to the support block.

A supply pipe 6 at the outlet of the dispenser 2 is mounted coaxially with the radius of the latest and tangentially communicated with the receiving chamber 5 of the hydrocyclone 1, preferably paired to the farthest wall with the outer wall of the reception chamber 5 of the hydrocyclone 1.

The hydrocyclone 1 is made with the inner is m diameter cylindrical part, components 150÷250 mm

A supply pipe 6 of the hydrocyclone 1 is made with a hole equivalent to the diameter of which is 25÷115 mm

The drain pipe 7 hydrocyclone is made with a diameter of 25÷115 mm

Sand nozzle 8 of the hydrocyclone 1 is made with a diameter of 8÷40 mm

Block hydrocyclone 1 is designed primarily for processing and separation of ores iron ore deposits of the type of the Kursk magnetic anomaly.

Block hydrocyclone 1 is designed with the possibility of fractional separation of suspensions complex, including gold-bearing ores with inclusions of other precious and rare earth metals.

Works proposed block of hydrocyclones as follows.

When the system is split suspension of the ore - pulp pressure on the pulp fed into the hydrocyclone unit 1. The pulp enters the hydrocyclone 1 through the distributor 2. The flow of slurry is accelerated in the supply pipe 6 of the hydrocyclone 1 and is fed tangentially to its cylindrical part. Next, the pulp with the centrifugal acceleration spiral slides down along the inner conical part of the housing 4 of the hydrocyclone 1 to sand the nozzle 8, where there is a backwater. The main part of the fine fraction extracted in the form of a suspension goes up and through the drain pipe 7 is sent to other technological systems. Over rupenye faction, clinging to the conical part of the housing 4, forming a spiral slurry stream that through the sand nozzle 8 goes down to the final grinding.

Thus, due to the developed invention interrelated structural and technological parameters are combined in a block of hydrocyclones and found in the invention of the sizes and ratios of the areas of cross-sections nutritious and drain pipes, as well as sand nozzle that is optimal for a received combination of size, configuration and the angle of the taper of the hydrocyclone under the specified amount and density of the partial two-phase environment, increase the efficiency and quality of the separation of suspensions ores, and adopted in the hydrocyclone, the interval of values of the diameter of the sand nozzle corresponds necessary and sufficient for a conclusion from it through the sand nozzle substandard large particles when their percentage content in the pulp, characteristic of thin grinding ore processing systems for processing ores, under the parameters of which have developed a set of hydrocyclones.

1. The system of fractional separation of suspensions ore fine grinding, comprising a hydrocyclone unit, characterized in that it contains a distributor of suspension in the form of a slurry, to which is connected from one to eight hydrocyclones mentioned unit total capacity from 550 to m 3/h partial suspension of ores, mounted on a common support, preferably, frame type, with each hydrocyclone contains a cylindrical housing with a receiving chamber in the upper part, which is connected nutritious connection with the distributor of pulp, cover with a drain pipe projecting into the housing, at least most of the height of chamber, and sand nozzle, United below sand collector pekovymi nozzles other hydrocyclones back on the final grinding separated in the hydrocyclone unit oversized large particles, each hydrocyclone made the rallying from a set of sections of cylindrical and conical parts and kropielnicki external configuration the first of these sections and provided with an inner lining of wear-resistant material in the form of rubber or polyurethane, while the height of the reception chamber from the bottom to the top of the conical part of the cyclone contains up to two cylindrical sections, and its tapered portion contains at least two sections, the inner diameter of the cylindrical part of the body of the hydrocyclone, which defines the greatest centrifugal runway three-dimensional spiral swirl flow of the suspension is made greater than 2.9÷3.6 times the output diameter of the drain pipe, and the cross-sectional area of the last pillar is t 1,27÷1,89 cross-sectional area of nutritional pipe and 5.0÷14,0 times the cross-sectional area of the outlet channel sand nozzle for internal taper of the lower part of the body of the hydrocyclone, of 16÷22 degrees.

2. The system according to claim 1, characterized in that the dispenser pulp has a body in the form of a cylinder, lined on the inner side of abrasion-resistant material, such as rubber or polyurethane, and is provided in the lower housing inlet flange socket for detachable connection with a pressurized pipeline system suspension separation of ores and output holes with flanged connections for connection with a nutrient nipples, telling him with hydrocyclones and outlet openings of the distributor is made, preferably, coaxial with the inlet holes of the receiving chambers of the hydrocyclones, the dispenser pulp is equipped with a cover, on which is mounted a pressure sensor of the pulp at the entrance to the block of hydrocyclones.

3. The system according to claim 1, characterized in that the supply pipe of the cyclone made with variable shape parameters, changing from the curvilinear in cross section at the site of exit of the distributor of pulp to a rectangular shape on the approach to the hydrocyclone with the opportunity oriented along the axis of the latter slotted input in the receiving chamber of the hydrocyclone.

4. The system according to claim 1, characterized in that the cylindrical and conical sections of the hydrocyclones included in the unit, provided with end flanges for detachable connection with adjacent sections, if e is ω, at least one section along the height of the hydrocyclone is provided on the outer side of the support elements, preferably in the form of brackets, the supporting surface of which is aligned in height with the plane of the support equal to the support surface of the block.

5. The system according to claim 1, characterized in that the supply pipe at the outlet of the dispenser is mounted coaxially with the latter, tangentially communicated with the receiving chamber of the hydrocyclone is connected to the farthest wall with the outer wall of the reception chamber of the hydrocyclone.

6. The system according to claim 1, wherein each hydrocyclone has an inner diameter of the cylindrical part of 150÷250 mm

7. The system according to claim 1, characterized in that in the supply pipe of the cyclone made the hole, the equivalent diameter of 25÷115 mm

8. The system according to claim 1, characterized in that the drain pipe of the cyclone has a diameter of 25÷115 mm

9. The system according to claim 1, characterized in that the sand nozzle hydrocyclone has a diameter of 8÷40 mm

10. The system according to claim 1, characterized in that it is appointed for separating ores of iron ore deposits of the type of the Kursk magnetic anomaly.

11. The system according to claim 1, characterized in that it is made with the possibility of fractional separation of suspensions complex, including gold-bearing ores with inclusions of other precious is x, as well as rare earth metals.



 

Same patents:

FIELD: process engineering.

SUBSTANCE: invention relates to ore suspension separation, particularly, to hydrocyclone units used in fine ore suspension separation systems in mining, metallurgy, chemical industry, etc. Proposed system comprises unit of hydrocyclones, pulp distributor whereto connected are one to eight hydrocyclones with total capacity of 180 to 1600 m3/h of separated ore suspension. Unit hydrocyclones are mounted on common frame. Every hydrocyclone is shaped to tapered-cylinder housing with intake chamber, feed and discharge branch pipes, and sand bed integrated with those of other hydrocyclones and provided with inner lining of wear resistant material. Hydrocyclone housing cylindrical part ID is 2.7-3.3 times larger than that of discharge branch pipe while cross-section of the latter makes 1.05-1.75 of cross-section area of feed branch pipe and is 3.3-9.0 times larger than that of sand bed outlet channel at taper angle of hydrocyclone housing bottom of 18-22 degrees.

EFFECT: higher efficiency and quality of suspension separation, power savings, continuous operation.

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FIELD: process engineering.

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EFFECT: higher efficiency and quality of separation, stable and reliable operation.

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EFFECT: higher efficiency and quality of separation, power savings, perfected design.

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EFFECT: higher extraction of copper and molybdenum.

1 tbl

FIELD: metallurgy.

SUBSTANCE: method includes main floatation with several rewashes by sulphydric and apolar collectors to produce a collective crude copper-molybdenum concentrate. Then its treatment with a reagent is carried out, such as sodium sulphide, and selective floatation to produce a foamed molybdenum-containing product and a chamber copper-containing concentrate. When processing a crude copper-molybdenum concentrate, a combination of sodium sulfide and sodium thioantimonate at the ratio of 4:1÷1:1.

EFFECT: higher extraction of copper and molybdenum.

1 tbl

FIELD: metallurgy.

SUBSTANCE: production of palladium soluble in nitric acid is carried out by restoration of a suspension of a compound PdCl2 by sodium or ammonium formate in acid or weak-acid medium. Restoration is carried out at the temperature of 50-110°C.

EFFECT: production of palladium practically fully soluble in nitric acid safe in pure air atmosphere and resistant to oxidation on air without additional heating.

3 tbl, 2 ex

FIELD: metallurgy.

SUBSTANCE: method for extracting rare-earth elements from the technological and productive solutions containing iron (III) and aluminium, with a pH-0.5÷2.5, includes the sorption of rare-earth elements with strong-acid cation resin. As the strong-acid cation resin the microporous strong-acid cation resin is used based on hypercrosslinked polystyrene having a size of micropores 1-2 nm.

EFFECT: higher efficiency of the process due to greater sorption capacity of the said strong-acid cation resin, high kinetics of sorption and selectivity, improvement of the subsequent quality of eluates and simplification of the process of their further processing.

5 tbl, 5 ex

FIELD: metallurgy.

SUBSTANCE: proposed method consists in leaching of valuable and/or toxic components. Prior to leaching, sintering of mineral stock is executed by cement, calcium oxide and solution produced by mixing active soda solution subjected to photoelectrochemical treatment with leaching reagents. After sintering, pile is made from sintered material. Leaching consists in sprinkling said pile by water or aforesaid active soda solution.

EFFECT: higher efficiency.

1 ex

FIELD: metallurgy.

SUBSTANCE: method for gold extraction from cyanide solutions with dissolved mercury contained in them, gold-bearing ores formed during leaching, involves sorption of gold and mercury on activated carbon with enrichment of activated carbon with gold and mercury. Then, gold desorption is performed with alkali-cyanide solution under autoclave conditions, gold electrolysis from strippants so that cathode deposit is obtained and its remelting is performed so that finished products are obtained in the form of raw base gold alloy. Prior to gold desorption the selective desorption of mercury is performed by treatment of saturated carbon with alkali-cyanide solution containing 15-20 g/l of sodium cyanide and 3-5 g/l of sodium hydroxide, at temperature of 18-20°C and atmospheric pressure during 10 hours.

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4 tbl, 1 ex

FIELD: process engineering.

SUBSTANCE: invention relates to ore suspension separation, particularly, to hydrocyclone units used in fine ore suspension separation systems in mining, metallurgy, chemical industry, etc. Proposed system comprises unit of hydrocyclones, pulp distributor whereto connected are one to eight hydrocyclones with total capacity of 180 to 1600 m3/h of separated ore suspension. Unit hydrocyclones are mounted on common frame. Every hydrocyclone is shaped to tapered-cylinder housing with intake chamber, feed and discharge branch pipes, and sand bed integrated with those of other hydrocyclones and provided with inner lining of wear resistant material. Hydrocyclone housing cylindrical part ID is 2.7-3.3 times larger than that of discharge branch pipe while cross-section of the latter makes 1.05-1.75 of cross-section area of feed branch pipe and is 3.3-9.0 times larger than that of sand bed outlet channel at taper angle of hydrocyclone housing bottom of 18-22 degrees.

EFFECT: higher efficiency and quality of suspension separation, power savings, continuous operation.

11 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to ore suspension separation. Fine complex ore suspension separation system comprises set of hydraulic cyclones, pulp distributor and one to six hydraulic cyclones with total output of 12 to 70 m3/h mounted on frame support. Every hydraulic cyclone is made up of cone housing with intake chamber, feed and discharge branch pipes, and sand bed integrated along the bottom with beds of other cyclones, and furnished with inner lining from wear proof material. Cone section of hydraulic cyclone is formed by variable-thickness lining. Housing cylindrical section ID is 3.5-5.0 times larger than discharge branch pipe outlet diameter while branch pipe cross-section area makes 0.6-1.0 of feed branch pipe cross-section area and is 6-25 times larger than that of sand bed outlet channel at inner taper angle of housing bottom of 14-18 degrees.

EFFECT: higher efficiency and quality of separation, stable and reliable operation.

11 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to selective separation of ore suspensions. Proposed complex comprises unit of hydraulic cyclones with control valves, electrically driven pump, suction and pressure pump lines, coarse ore feed conveyor, ore fine grinder, selective classifier, sump, service water supply system, control valves and automatic control system. Every hydraulic cyclone is shaped to tapered cylinder housing with intake chamber at its top communicated via feed branch pipe with pulp distributor and provided with colder with drain branch pipe and sand bed communicated, at its bottom, via sand manifold, with similar beds of other cyclones. Ore fine grinder inlet is communicated with coarse ore intake while its outlet is communicated wit selective classifier having two outlet ducts, one being connected with sump and another one being communicated with grinder. Sump is communicated via T-joint and suction pulp line with pressure pipeline of water supply system to switch over to pulp wash-out in sump while turbo pump is communicated with turbo delivery pump.

EFFECT: higher efficiency and quality of separation, power savings, perfected design.

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Multi-cyclone trap // 2369440

FIELD: engines and pumps.

SUBSTANCE: multi-cyclone trap comprises first cyclone trap to suck in external air and carry out primary collection of dust, multiple second cyclone traps to collect fine dust contained in air, fine dust collector and casing to house fist and second cyclone traps. Note here that aforesaid polygonal casing has at least two angles. Note also that a part of multiple second cyclone traps is arranged along periphery of the first trap, while the remaining part of aforesaid traps is located at each angle of the casing.

EFFECT: higher efficiency.

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FIELD: engines and pumps.

SUBSTANCE: proposed battery cyclone comprises distributing chamber, counter-current cyclone elements arranged in parallel and communicating with external dust separator and purified gas accumulating chamber. Aforesaid distributing chamber is furnished with inlet swinging-gave valve branch pipe attached thereto and settling chamber. The latter communicates with distributing chamber via slots. Counter-current cyclone elements represent cylindrical cyclone counter-current dust concentrators with individual tangential gas inlets that communicate with aforesaid distributing chamber. Proposed device incorporates also purified gas discharge pipes and dust withdrawal sections provided with tangential dust concentrate outlets that communicate with sectionalised dust collector that allows withdrawing dust-gas mix in external dust collectors. The latter represent separate counter-current cyclones. Dust concentrator exhaust pipes are furnished with scroll-type swirlers and communicate with purified gas collecting chamber that incorporates a swinging gate valve. Counter-current cyclones have through collectors with gate valves that comprise dust risers, while settling chamber is furnished with dust duct with gate valve.

EFFECT: higher efficiency.

4 cl, 4 dwg, 3 tbl, 5 ex

Cyclone separator // 2358811

FIELD: engines and pumps.

SUBSTANCE: cyclone separator comprises a primary cyclone with the fist outside air intake and the first air discharge outlet. Note that the latter comprises a flow passage part with a perforated section, that makes its lateral wall, and a closed part on its bottom, a secondary cyclone communicating with the primary cyclone. It incorporates also a flow guide arranged above the fist discharge outlet to prevent abrupt change of the direction of airflow forced out from the first discharge outlet and to direct air blown out from the perforated part to the secondary cyclone.

EFFECT: higher efficiency of separation, lower noise.

11 cl, 5 dwg

FIELD: technological processes, filters.

SUBSTANCE: invention concerns gas treatment systems. Dust collection system includes source of gas to be cleaned, fan, pipes, four dust collectors at oncoming swirl gas flows, each collector made in the form of cylindrical case with conical tank, tangential top inlet pipe, inlet swirler in bottom inlet pipe, with axial outlet pipe for cleaned gas and dust discharge pipe in which floodgate is mounted, and dampers in pipes. Conical tank of first dust collector has dust and gas mix discharge pipe. Source of gas to be cleaned is connected to tangential inlet pipe and inlet swirler of first dust collector, axial outlet pipe of which is connected to tangential inlet pipe and inlet swirler of second dust collector. Axial outlet pipe of second collector is connected to inlet swirler of fourth dust collector. Dust and gas mix discharge pipe of conical tank of first dust collector is connected to tangential inlet pipe and inlet swirler of third dust collector, axial outlet pipe of which is connected to tangential inlet pipe of fourth dust collector, and axial outlet pipe of fourth collector is connected to the fan inlet.

EFFECT: enhanced efficiency of dusted gas treatment, especially for fine-dispersed particles.

2 cl, 1 dwg

FIELD: technological processes.

SUBSTANCE: invention concerns gas treatment systems. Dust collection system includes source of gas to be cleaned, pipes, fan, three dust collectors at oncoming swirl gas flows, dampers and conical separation concentrator installed in the pipes, concentrator containing cylindrical swirl chamber connected to inlet chamber with tangential inlet. Swirl chamber encases axial pipe for discharge of gas flow with lesser dust concentration, pipe outlet located at the swirl chamber side opposite to inlet chamber. Swirl chamber surface carries side pipe for discharge of gas flow with larger dust concentration. Source of gas to be cleaned is connected to tangential inlet of separation concentrator, side pipe of which is connected via dampers to tangential inlet pipe and inlet swirler of first dust collector. Axial outlet pipe of first collector is connected to tangential inlet pipe of third dust collector via a damper and to side pipe of separation concentrator via dampers. Axial pipe of concentrator is connected to tangential inlet pipe and inlet swirler of second dust collector, axial outlet pipe of which is connected to inlet swirler of third dust collector and to axial outlet pipe of separation concentrator, while axial outlet pipe of third dust collector is connected to suction pipe of fan.

EFFECT: improved gas treatment efficiency, convenience of maintenance.

3 dwg

FIELD: technological processes.

SUBSTANCE: invention concerns gas treatment systems. Dust collection system includes source of gas to be cleaned, fan, pipes and three dust collectors at oncoming swirl gas flows, each collector made in the form of cylindrical case with conical tank, tangential top inlet pipe, inlet swirler in bottom inlet pipe, and dust-screening conical disk at its outer surface, with axial outlet pipe for cleaned gas and dust discharge pipe in which flood gate is mounted. Conical tanks of first and second dust collectors have dust and gas mix discharge pipes. Source of gas to be cleaned is connected to the fan inlet, fan delivery nozzle is connected by pipes with dampers to tangential inlet pipes and inlet swirlers of first and second dust collectors, axial outlet pipes of which enter open air. Dust and gas mix discharge pipes of conical tanks of first and second dust collectors are connected by pipes with dampers to tangential inlet pipe and inlet swirler of third dust collector, axial outlet pipe of which is connected over a damper to pipe connecting source of gas to be cleaned to the fan inlet.

EFFECT: efficient treatment system for large gas volumes.

1 dwg, 1 ex

FIELD: motors and pumps.

SUBSTANCE: dust-collecting system includes the source of cleaned gas, pipelines, fan, two dust-collecting units installed at counter-current swirling flows of gas. Each dust-collecting unit is represented with the cylindrical body with the tapered hopper, the first tangential inlet nozzle, inlet swirler in the second inlet nozzle and dust extracting beveled washer installed on its outer surface. The body is also provided with axial outlet nozzle for the cleaned gas and dust discharge nozzle where flood-gate is installed. The system is also provided with the source of clean air, the chokes installed on the pipelines and separating concentrator including cylindrical swirling chamber linked with inlet chamber provided with tangential inlet. There is axial pipe in the swirling chamber to discharge gas flow with less dust concentration. The swirling chamber outlet is located at the opposite side from inlet chamber. Side nozzle is mounted on the surface of swirling chamber to discharge gas flow with higher dust concentration. Tapered hopper of the fist dust-collecting unit is provided with dust-laden gas outlet nozzle. Cleaned gas source is connected to the tangential inlet of separating concentrator having side nozzle connected to the tangential inlet nozzle of the first dust-collecting unit. The axial outlet nozzle of the first dust-collecting unit is linked with the suction nozzle of the fan. Clean air source is coupled with the pipeline provided with choke and with inlet swirler of the first dust-collecting unit. Besides, axial pipe of the separating concentrator is coupled with the pipeline provided with choke and with the pipeline connecting clean gas source with inlet swirler of the first dust-collecting unit. The dust-laden gas nozzle of the first dust-collecting unit is linked with the tangential inlet nozzle and inlet swirler of the second dust-collecting unit. The axial outlet nozzle of the second dust-collecting unit is provided with the suction nozzle of the fan.

EFFECT: effective cleaning if dust-laden gas flow containing highly-disperse particles.

3 dwg, 1 ex

FIELD: separation of heterogeneous dispersed systems; devices for centrifugal separation of liquids from mechanical admixtures in hydraulic cyclone clearances; metallurgy and metalworking industry.

SUBSTANCE: proposed hydraulic cyclone plant includes reservoirs for initial waste liquid, sludge product and clean liquid, hydraulic cyclone with inlet, drain and sludge branch pipes, pump for delivery of initial liquid to hydraulic cyclone, injector and multi-hydrocyclone with inlet, drain and sludge branch pipes mounted between hydraulic cyclone and clean liquid reservoir provided inlet and outlet branch pipes; reservoir for sludge product provided with compressed air and flushing liquid branch pipes is located under sludge branch pipes of hydraulic cyclone and multihydrocyclone; injector fitted in initial liquid supply pipe line is provided with branch pipe for introduction of carbon dioxide from bottle. Proposed plant ensures through cleaning of waste liquid from solid particles of admixtures having diameter of 10 mcm up to 76-90%. Process of carbonization of liquid in shifting the admixtures from water-soluble state to solid phase reduces their concentration by 125 times. Repeated return of cleaned liquid to production saves chemical reagents by two times.

EFFECT: enhanced efficiency.

1 dwg

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