Ore suspension separation complex

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.

5 cl, 5 dwg

 

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

Known installation for grinding and fractionation ore hydrocyclone containing driven by an electric motor pump, preferably a centrifugal, to supply flow rate to a predetermined height, the control device for the motor for adjusting the rotation speed of the motor driving the pump and connected to the control unit engine and many other parts of the installation control computer, which enter the measured value of the current consumption power of a drive motor of the pump (RU 2182045 C1, 10.05.2002).

Known technological complex containing hydrocyclone installation that includes the capacity for original liquid, slurry product and pure liquid hydrocyclone with the input, the drain and slurry nozzles, a pump for supplying the original liquid in the hydrocyclone, the injector. The installation of the software package supplied with the second cleaning stage in the form of multipication with the input, the drain and slurry pipes installed is between cyclone and capacity of clean fluid from the inlet and outlet nozzles (EN 2244598 C1, 20.01.2005).

The disadvantages of the known technical solutions are relatively complicated construction and interconnection of the units shredding systems, internal technological transport of dry and wet streams and systems of fractional separation of suspensions ores and control systems of technological processes, maintaining operational parameters and maintenance of the units that are not conducive to reducing energy intensity, increasing the duration turnaround periods of operation of these units and in the long run do not maintain proper quality division of fractions and necessary hydrodynamic balance work hydrocyclones.

The problem solved by the invention is to improve the efficiency and quality of separation of suspensions ore fractions by reducing energy consumption, as well as to improve the stability and duration without stops on the repair and replacement of wear parts, the improvement of the hydrocyclone, the system of interaction between aggregates crushing and internal transport of conditioned crushed and oversized particles of ore processing facility.

The problem is solved in that the proposed technological complex system of separation of ore suspensions according to the invention soda is separated by the hydrocyclone unit with dispenser, electric pump unit consisting of pulp turbopump and the motor suction and discharge pipeline, conveyor feeding coarsely ground ore, mill fine grinding of ore, fractional classifier, sump system, process water supply, shut-off and regulating valves with actuators, sensors, pressure control, flow of process water in the system and level rudosoderzhaschuyu slurry - slurry in the sump, and, preferably, a two-tier system of automatic management and control, including local controls and control blocks of the collection, measurement information from the sensors and generate commands to start, stop, maintain a balanced work of these units, technological systems and actuators and the operator's seat of the upper control equipped devices visualization of parameters of technological processes, 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, 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 with the option to return to the final grinding mill fine grinding separated in the hydrocyclone oversized large particles, and mill fine grinding in turn is connected at the input to the receiver ore coarse and output - fraction classifier having two output channels, one of which last reported on the fine ore fraction with the sump, and the other recirculation skommutirovany with the said mill on the return nemolotoy fraction of large particles, the sump is equipped with a pipe open process water supply and communicated adjustable overlapping absorbent slurry pipeline to the input of the turbopump, which in turn is communicated to pressure the pulp from the dispenser unit of hydrocyclones in addition, the sump through the tee and the above-mentioned suction pipeline is in communication with the discharge of process water supply pipeline with the possibility of an adjustable switch on the washing of the slurry in the sump, and the turbopump adjustable reported with similar pressure pipe with the possibility podostemaceae washing turbopump.

At the same time as pulp pump can be accepted quantum type horizontal centrifugal pulp capacity from 20 to 2500 m3/h, for example, brands from 20 to recurrent laryngeal nerve recurrent laryngeal nerve 2500.

Automatic control system and control performed duplex, can be fitted with blocks of collection, measurement information from the sensors and generate commands n the start, stop, maintaining a balanced work of these units, technology systems and actuators, and the operator's seat monitoring system equipped with devices visualization of parameters of technological processes, including at least one computer, monitor and printer with the conservation values of the technological and diagnostic parameters in the database for at least twelve months and the opportunity to reflect and reproduce the data schema of the technological complex data and equipment status.

Each hydrocyclone designed with variant performance suspension separation of ores from 20 to 400 m3/h and more, can be performed preferably teams, consisting of sections in the form of a conjugate according to the height of bodies of rotation number of intermediate cylindrical sections in addition to the cylindrical inlet chamber from zero to two, and tapered from one to three, and has an internal lining of wear-resistant material, such as rubber or polyurethane.

Each hydrocyclone can be performed, preferably, teams, consisting of a set of sections with cylindrical and conical profile, at least the inner volume, the hydrocyclone performance suspension separation of ores up to 20 m3/h made with kropielnicki external to what end all partitions from the inlet chamber to the sand nozzle and provided with an inner lining of wear-resistant material, for example, rubber or polyurethane, and the conical part of the inner profile of the housing is formed by a lining made on the specified plot of variable thickness, increasing the area of the most intensive wear separated in the hydrocyclone oversized large particles of ore - ore sand towards the sand nozzle on the difference between the cylindrical and conical external internal profiles of the hydrocyclone.

The technical result provided by the present set of features is to improve the efficiency and quality of separation of suspensions ores due to the developed invention the relationship of technological stages crushing, primary fractional classification and subsequent discharge from suspensions in hydrocyclones conditioned ore fractions with recirculation return the non-conforming large particles in the final grinding mill fine grinding. This system has been developed in Association blocks hydrocyclone separation between the overall performance of the unit reduces wear-intensive centrifugal effect on the abrasion working parts of hydrocyclones, leads to longer preservation design parameters, improving the operation quality of the separation of ores, improving performance and duration of the overhaul of the technological complex.

p> The invention is illustrated by drawings, where:

figure 1 shows the technological complex system of separation of suspensions ores, technological scheme;

figure 2 - block of hydrocyclones with dispenser, front view;

figure 3 - technological arrangement of hydrocyclones in the block variant with two hydrocyclones, skommutirovany with nutrient dispenser nozzles, top view;

figure 4 - hydrocyclone performance up to 20 m3/h, front view;

figure 5 - hydrocyclone capacity from 20 to 400 m3/h and more, front view.

Technological complex system of separation of suspensions ore contains a block of hydrocyclones 1 with the dispenser 2, the electric pump unit consisting of pulp turbopump 3 and the motor suction and discharge pipeline 4 and 5, respectively, the conveyor 6 feeding coarsely ground ore, 7 mill fine grinding of ore, fractional classifier 8, sump 9, the system 10 process water supply, shut-off and regulating valves with actuators, the sensor 11 of the control pressure sensor, a flow of process water in the system and the sensor 12 level rudosoderzhaschuyu slurry - slurry in sump 9. Technological complex also contains, preferably, a two-tier system of automatic control and control (drawings not until the ANO), including local controls and control blocks of the collection, measurement information from the sensors and generate commands to start, stop, maintain a balanced work of these units, technology systems and actuators and the operator's seat of the upper control equipped devices visualization of technological processes parameters.

Each hydrocyclone 1 contains a cylindrical housing 13 with the receiving chamber 14 in the upper part, which is connected nutritious pipe 15 with the dispenser 2 pulp, has a lid with a drain pipe 16, protruding into the housing 13, at least most of the height of chamber 14, and sand nozzle 17, United below the same manifold 18 with the same nozzles other hydrocyclones 1 back for final grinding in a mill 7 fine grinding separated in the hydrocyclone 1 oversized large particles. The 7 mill fine grinding in turn is connected at the input to the receiver 19 ore coarse and output - fraction classifier 8, having two output channels 20, 21. 20 channel fractional classifier 8 reported on a fine-grained fraction of the ore from the sump 9 and channel 21 recirculation skommutirovany with the said mill 7 return nemolotoy fraction of large particles. The sump 9 is supplied by a pipe 22 from ryogo process water supply and communicated adjustable blocked suction pipeline 4 on the entrance with the turbopump 3, which in turn is communicated to pressure the pulp line 5 with the valve block 2 hydrocyclones 1. The sump 9 through t-joint 23 and the above-mentioned suction pipeline 4 is in communication with the pressure pipe 24 of the system 10 process water supply with the possibility of an adjustable switch on the washing of the slurry in the sump 9. The turbopump 3 adjustable reported with similar pressure pipe 24 with the possibility podostemaceae washing turbopump 3.

As pulp pump 3 adopted the turbo pump type horizontal centrifugal pulp capacity from 20 to 2500 m3/h, for example, brands from 20 to recurrent laryngeal nerve recurrent laryngeal nerve 2500.

Automatic control system and control performed duplex with blocks of collection, measurement information from the sensors and generate commands to start, stop, maintain a balanced work of these units, technology systems and actuators. The operator's seat monitoring system equipped with devices visualization of parameters of technological processes, including at least one computer, monitor and printer with the conservation values of the technological and diagnostic parameters in the database for at least twelve months and the opportunity to reflect and reproduce the data schema of the technological complex and status data of the equipment is designed.

Each hydrocyclone 1, developed with variant performance suspension separation of ores from 20 to 400 m3/h and more preferably be teams consisting of sections 25 in the form of a conjugate according to the height of bodies of rotation number of intermediate cylindrical sections in addition to the cylindrical inlet chamber from zero to two, and tapered from one to three, and is provided with an inner lining 26 of the wear-resistant material, such as rubber or polyurethane.

Each hydrocyclone 1 is made, preferably, teams, consisting of a set of sections 25 with a cylindrical and a conical profile, at least the inner volume. The hydrocyclone 1 performance suspension separation of ores up to 20 m3/h made with kropielnicki external configuration of all sections from the inlet chamber 14 to sand the nozzle 17 and is provided with an inner lining 26 of the wear-resistant material, such as rubber or polyurethane. The conical part of the inner profile of the housing 13 is formed by lining 26, executed on the specified plot of variable thickness, increasing the area of the most intensive wear separated in the hydrocyclone 1 oversized large particles of ore - ore sand towards the sand nozzle 17 on the difference between the cylindrical and conical external internal profiles of the hydrocyclone 1.

Work is AET technological complex as follows.

Feeding coarsely ground ore in a system of separation of suspensions ores carried out on the conveyor 6. Next, the ore is fed into the mill 7 fine grinding of the ore and from there to the fractional classifier 8. From fractional classifier neomalota fraction of large particles of ore through the channel 21 is coming to the final grinding in a mill 7 and fine fractions of the ore through the channel 20 are received in the sump 9. From the sump 9 suspension ore turbo pump 3 through the pipeline 4 and 5 serves to block hydrocyclone 1.

The pulp enters the hydrocyclone 1 through the distributor 2. The flow of slurry is accelerated in the supply pipe 15 of the hydrocyclone 1 and is supplied in its cylindrical part. Next, the pulp slides down along the inner conical part of the housing 13 of the hydrocyclone 1 to sand the nozzle 17. The main part of the fine fraction extracted in the form of a suspension goes up and through the drain pipe 16 is sent to other technological systems. A larger fraction through the sand nozzle 17 to the manifold 18 go down to the final grinding in the mill 7.

The automatic control system and control maintain constant two parameters constant pressure at the entrance to the cyclone 1 and the specified level of suspension of ore in the sump 9. The constant pressure to support the regulation of the supply amount of water in the sump 9 and the suspension level - change of momentum is orbonalis 3.

When changing the feed slurry of the ore in the sump 9 changes the liquid level in the sump 9. In accordance with the magnitude of the changes in the level of slurry in sump 9 of the nominal increase (or decrease) the speed of the turbo pump 3, thereby increasing (or decreasing) the pressure at the inlet to the cyclone 1.

When the pressure below the set (or rise more given) increases (or decreases) the amount of water supplied to the sump 9 in accordance with the magnitude of the pressure change. The level of suspension of ore in sump 9 is incremented (or decremented), the speed of the turbopump 3 increase (or decrease) and the pressure at the inlet to the cyclone 1 is restored.

Start and stop turbopump 3 is performed with local controls, located at turbopump 3, or from the operator of the control system of the upper level.

After the turbopump 3 washed through the tee 23 system 10 process water.

Thus, due to the developed invention the relationship of technological stages crushing, primary fractional classification and subsequent discharge from suspensions in hydrocyclones conditioned ore fractions with recirculation return the non-conforming large particles in the final grinding mill fine grinding increases the efficiency and quality of the suspension separation of ores.

Theologically complex suspension separation of ores, characterized in that it includes a block of hydrocyclones with valve suspension in the form of a slurry, the electric pump unit consisting of pulp turbopump and the motor suction and discharge pipeline, conveyor feeding coarsely ground ore, mill fine grinding of ore, fractional classifier, sump system, process water supply, shut-off and regulating valves with actuators, sensors, pressure control, flow of process water in the system and the pulp level in the sump and preferably a two-tier system of automatic management and control, including local controls and control blocks of the collection, measurement information from the sensors and generate commands to start, stop, maintaining a balanced work of these units, technology systems and actuators and the operator's seat of the upper control equipped devices visualization of parameters of technological processes, 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, has a lid with a drain pipe projecting into the housing, at least most of the height of chamber, and sand nozzle, United Pont is zu sand collector pekovymi nozzles other hydrocyclones back on the final grinding mill fine grinding separated in the hydrocyclone oversized large particles, and mill fine grinding is connected at the input to the receiver ore coarse and output with fractional classifier having two output channels, one of which last reported on the fine ore fraction with the sump, and the other recirculation skommutirovany with the said mill on the return nemolotoy fraction of large particles, and the sump is equipped with a pipe open process water supply and communicated adjustable overlapping absorbent slurry pipeline to the input of the turbopump, which is communicated by the pressurized slurry pipeline with the distributor of pulp at the sump through the tee and the above-mentioned suction pipeline is in communication with the discharge process water supply pipeline with the possibility of an adjustable switch on the washing of the pulp in the sump, and the turbopump adjustable reported with similar pressure pipe with the possibility podostemaceae washing turbopump.

2. Technological complex according to claim 1, characterized in that as the pulp pump it includes a turbo pump type horizontal centrifugal pulp capacity from 20 to 2500 m3/h, for example, brands from 20 to recurrent laryngeal nerve recurrent laryngeal nerve 2500.

3. Technological complex according to claim 1, characterized in that the automatic control system and control feature blocks collection and evaluation of information from sensors and robotki commands to start, stop, maintaining a balanced work of these units, technology systems and actuators, and the operator's seat monitoring system equipped with devices visualization of parameters of technological processes, including at least one computer, monitor and printer with the conservation values of the technological and diagnostic parameters in the database for at least twelve months and the possibility of reflection and reproduction schema data processing facility and data about the condition of the equipment.

4. Technological complex according to claim 1, wherein each hydrocyclone has performance suspension separation of ores from 20 to 400 m3/h or more and is made, preferably, teams, consisting of sections in the form of a conjugate according to the height of bodies of rotation number of intermediate cylindrical sections without cylindrical inlet chamber, to two and tapered from one to three and has an internal lining of wear-resistant material, such as rubber or polyurethane.

5. Technological complex according to claim 1, wherein each hydrocyclone is made, preferably, teams, consisting of a set of sections with cylindrical and conical profile, with the hydrocyclone performance suspension separation of ores up to 20 m3/h is made with all ylindrical external configuration of all sections from the inlet chamber to the sand nozzle and provided with an inner lining of wear-resistant material in the form of rubber or polyurethane, moreover, the conical part of the inner profile of the housing is formed by a lining made on the specified plot of variable thickness, increasing the area of the most intensive wear separated in the hydrocyclone oversized large particles of ore in the ore sand towards the sand nozzle on the difference between the cylindrical and conical external internal profiles of the hydrocyclone.



 

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Vortex apparatus // 2341335

FIELD: mechanics.

SUBSTANCE: vortex apparatus comprises casing wit upper and lower covers, the lower one making a condensate collector, gas inlet/outlet and condensate outlet branch pipes, partitions, vortex pipe, initial compressed gas flow rate control device and condensate-separation units. Aforesaid vortex pipe includes a cold flow and hot flow pipes. Initial compressed gas flow rate control device incorporates a screw-type tightening device (STD) with adjusting washer furnished with a cross-piece with stem arranged in the STD membrane hole. The said stem passes via the cold flow pipe and through the gland in the upper cover out from the apparatus and is furnished with the rotation drive. The condensate-separation units comprise pipe laid between the said partitions, two pairs of crosswise slots arranged opposite to each other on the hot flow pipe at the distance of (1.25 to 1.45) d, where d is the pipe ID, from the STD edge and shifted relative to each other by 90°. Note that the said slots are arranged along the axis at the distance of (0.15 to 0.25) d. The circular chamber outlet channels, inside the hot flow pipe, are terminates at the gap between the casing wall and thin-wall cylinder. The hot flow pipe outlet is furnished with a nozzle and thin-wall cylinder is provided with confuser-diffuser element making an injector.

EFFECT: control over initial compressed gas flow rate by external effects and higher efficiency of condensation-separation processes.

1 cl, 4 dwg

Dust separator // 2325953

FIELD: mechanics filtration.

SUBSTANCE: invention is designed to separate suspended particles from gases. The dust separator incorporates a countercurrent flow concentrator connected to the vortex chamber outlet axial branch pipe, the concentrator allowing an axial purified gas out coming and a removal of concentrated dust. The vortex chamber is provided with a slot and gas duct with a gate arranged on the chamber curvilinear wall on the flow inlet side, the gas duct communicating with the duct removing the concentrated dust from the countercurrent flow concentrator into the extension countercurrent flow cyclone. The vortex chamber opposite side has a slot and gas duct communicating with the extension countercurrent flow cyclone. The extension countercurrent flow cyclones are equipped with the transit-receiving vessels connected to the gates incorporating the gates with vertical dust standpipes, while the receiving vessel is provided with a dust duct with gate. The proposed invention increases the efficiency of operation.

EFFECT: increase in dust separator efficiency.

2 cl, 2 dwg, 3 tbl, 5 ex

FIELD: production of ameliorant based on natural bischofite, phosphorites, metallurgical production wastes in the form of slag, used etching solutions employed in etching of ferrous metals with sulfuric acid, and used electrolytes utilized in galvanic plating.

SUBSTANCE: method involves processing solid components followed by mixing with liquid components; preliminarily preparing solution from used etching solutions of sulfuric acid etching of ferrous metals and electrolytes of galvanic plating in the ratio of 1:1; separately feeding solution for treating of ground metallurgical slag at solid and liquid phase ratio S:L=1:6 and for processing of ground phosphorites at S:L ratio of 1:7; in the first case, heating mixture to temperature of 120-160 C during 0.75-1.25 hours, in the second case heating mixture to temperature of 95-120 C during 30-45 min while continuously mixing until homogeneous mass is produced; preparing third mixture of ground phosphorites and mixing it with brine of natural mineral of bischofite of MgCl2·6H2O formulation at S:L ratio of 1:4, said mixing process being conducted at temperature of 80-90 C during 1-2 hours; mixing resulted pulp of bischofite and phosphorites with homogeneous mass of slag of metallurgical production with etching solutions and phosphorites with etching solutions in the ratio of 1:1:1 during 1 hour at temperature of 45-70 C until pasty mass is produced. Also, apparatus for producing of ameliorant is described.

EFFECT: improved quality of ameliorant, reduced consumption of power and decreased production costs in obtaining of ameliorant.

3 cl, 1 dwg, 16 tbl

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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