CN111036389A - Automatic control hydraulic magnetic force short cone swirler ore dressing system - Google Patents
Automatic control hydraulic magnetic force short cone swirler ore dressing system Download PDFInfo
- Publication number
- CN111036389A CN111036389A CN201910409795.4A CN201910409795A CN111036389A CN 111036389 A CN111036389 A CN 111036389A CN 201910409795 A CN201910409795 A CN 201910409795A CN 111036389 A CN111036389 A CN 111036389A
- Authority
- CN
- China
- Prior art keywords
- density
- ore pulp
- ore
- cone
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B13/00—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
- B03B5/32—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions using centrifugal force
- B03B5/34—Applications of hydrocyclones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention relates to a short cone cyclone for automatically controlling mineral separation, which is equipment for mineral separation by utilizing gravity and a magnetic physical method. The magnetic ore dressing machine is suitable for sorting magnetic ores, in particular for recleaning of magnetic tailings of fine particles; polymetallic ore containing magnetic minerals; and (4) recleaning the polymetallic mine tailings containing the magnetic minerals. The magnetic separator aims to overcome the defects that the separation process of a short cone cyclone is difficult to control and the existing magnetic separation equipment cannot efficiently separate and recover fine particle magnetic minerals in the prior art. The density sensor is adopted to automatically adjust the concentration of ore pulp, the ore pulp flow sensor, the pressure sensor and the industrial computer are used to automatically control the sorting process of the short cone cyclone, the liquid level sensor is used to control the start and stop system, and the magnetic field of the magnetic force and the gravity is used to efficiently and stably complete the sorting and recovery of the fine particle magnetic minerals. The automatic slurry mixing device is composed of an automatic control slurry density mixing barrel, an automatic control device for the working pressure of a short-cone swirler, a permanent magnetic device and an automatic control start-stop device.
Description
Technical Field
The invention relates to a short cone cyclone for automatically controlling mineral separation, which is equipment for mineral separation by utilizing gravity and a magnetic physical method. The method is suitable for sorting the magnetic ore with the ore density difference larger than 2 with the gangue density difference such as: and separating magnetite, hematite, chromite, ilmenite, manganese ore and wolframite. Particularly suitable for the recleaning of the magnetic mineral tailings with fine particles smaller than 300 meshes; polymetallic ore containing magnetic minerals; and (4) recleaning the polymetallic mine tailings containing the magnetic minerals.
Background
The short-cone hydrocyclone utilizes the combined action of centrifugal force, gravity, rotary shearing force and other forces to sort the material group with the specific gravity difference. Fluid is given into from the circulator upper end and is formed the compulsory whirl in the swirler, the whirl divides into the inside and outside ring layer with the granule according to granularity and proportion, when the ore pulp flows to cone part branch, because the sudden diversion of cone, the resistance increases, the trend of granule crowd downstream slows down, and form rotatory suspension layer here, with weakening of centrifugal force field, the action of gravity is more and more obvious, turn into the upper and lower two-layer according to proportion sorting gradually by the inside and outside two-layer that divide into according to granularity and proportion, the granule that the proportion is big discharges through the underflow opening, the granule that the proportion is little then discharges through the overflow pipe, thereby realize the separation between the light and heavy granule.
The structure of the short cone cyclone is greatly different from that of the conventional grading cyclone, which is mainly characterized in that the cone angle of the short cone cyclone is generally larger than 90 degrees, and the cone angle of the conventional grading cyclone is generally 15-30 degrees; the height of the straight cylinder part is equivalent to the inner diameter; the overflow pipe of the short cone swirler has a larger diameter, and the overflow pipe of the conventional grading swirler has a smaller diameter; the depth of the overflow pipe of the short cone swirler inserted into the barrel is deeper, and the depth of the overflow pipe of the conventional grading swirler inserted into the barrel is shallower. The difference of the structure causes the difference of the motion rules of solid-liquid two-phase flow in the cyclone, the conventional cyclone tendency and particles are graded according to equal reduction ratio, and the main factors influencing the motion rules of the particles are the granularity and the density. For the short cone cyclone, because of the formation of a suspension layer, the movement of particles is mainly influenced by density, and the sorting is carried out according to the density rule. The short cone cyclone forms a suspension bed layer with different densities on the upper part of the separation cone, the bed layer is similar to a heavy medium, and only particles with higher densities can pass through the bed layer to reach the surface of the separation cone, so that the separation according to the density is caused.
The concentration of ore feeding for the separation of a common short-cone cyclone is about 15 percent, and the separation effect is influenced by over-high or over-low concentration of ore feeding. The ore feeding pressure for the separation of the common short-cone cyclone is about 0.05-0.08MP, and the separation effect is influenced by too high or too low ore feeding pressure. The sorting process of the short-cone cyclone is difficult to control, the sorting index fluctuation is large, and industrial application cannot be realized.
The existing magnetic separation equipment adopts single magnetic force for mineral separation, and fine particle magnetic minerals smaller than 300 meshes are lost in tailings due to the fact that the magnetic force is smaller than the hydraulic force in the separation process. Some black metal tailings contain fine magnetic particles with the particle size less than 300 meshes, the content of the fine magnetic particles reaches 10% -25%, and resource waste is caused.
Disclosure of Invention
The method aims to overcome the defects that the separation process of the short cone cyclone is difficult to control, the separation index fluctuation is large and the industrial application cannot be realized due to unstable separation ore feeding concentration and ore feeding pressure of the short cone cyclone in the prior art. The existing magnetic separation equipment can not efficiently separate and recover magnetic minerals with fine particles smaller than 300 meshes. The invention provides a system for automatically adjusting the concentration of ore pulp by adopting a density sensor, automatically controlling the separation process of a hydraulic short-cone cyclone by adopting an ore pulp flow sensor and a pressure sensor and an industrial computer and controlling the start and stop of a liquid level sensor, thereby quickly, efficiently and stably completing the separation process of the short-cone cyclone. The separation and recovery of the magnetic minerals with the fine particles smaller than 300 meshes are efficiently and stably completed by adopting the action of a composite force field of magnetic force and gravity.
The technical scheme adopted by the invention for solving the technical problems is as follows: an automatic control hydraulic magnetic force short cone swirler mineral processing system comprises an automatic control pulp density pulp mixing barrel, a short cone swirler working pressure automatic control device, a permanent magnetic force device and an automatic control start-stop device.
The automatic control hydraulic magnetic short-cone cyclone mineral separation system is characterized in that the automatic control pulp density pulp mixing barrel consists of a pulp mixing barrel, a mineral feeding pipe, a clean water electromagnetic valve, a pulp density sensor and an industrial computer. The ball-milled ore pulp is fed into the pulp mixing barrel through the ore feeding pipe, and the density signal of the ore pulp measured by the ore pulp density sensor is transmitted to the industrial computer and is analyzed and processed by the industrial computer. The density of the ore pulp is controlled by an industrial computer to be adjusted within the range of 1.05-1.15, namely, the concentration of the ore pulp is 8-25%. When the density of the ore pulp measured by the ore pulp density sensor is greater than the set value of the industrial computer, the industrial computer controls the opening of the clear water electromagnetic valve, clear water in the clear water pipe enters the pulp mixing barrel through the clear water electromagnetic valve and the ore feeding pipe to dilute the ore pulp, and when the density of the ore pulp measured by the ore pulp density sensor is less than the set value of the industrial computer, the industrial computer controls the closing of the clear water electromagnetic valve, so that the automatic control of the density of the ore pulp is completed. The low ore pulp density is set when the high-density mineral content is high, the high ore pulp density is set when the high-density mineral content is low, and the separation efficiency and the ore dressing recovery rate of the hydraulic short-cone cyclone are improved by adjusting the ore pulp density, namely adjusting the ore liquid ratio.
In the automatic control hydraulic magnetic short-cone cyclone mineral separation system, the automatic control device for the working pressure of the short-cone cyclone comprises a slurry mixing barrel, a sand pump motor, a density sensor, a flow sensor, a pressure sensor, a pressurizing mineral feeding pipe, a barrel body, a lower cone, a bottom flow pipe, an overflow port, an industrial computer and a frequency converter. The sand pump arranged at the bottom of the slurry mixing barrel sucks the slurry with the adjusted density and pumps the slurry into the pressurizing ore feeding pipe, the slurry in the pressurizing ore feeding pipe enters the short cone swirler for separation, the ore with high density is discharged from the lower cone through the underflow pipe, the ore with low density is discharged from the overflow pipe through the overflow port, and the cone angle of the lower cone is 90-160 degrees. The pressure signal collected by the pressure sensor is transmitted to the industrial computer, when the pressure signal is larger than the set value of the industrial computer, the industrial computer reduces the working frequency of the frequency converter, the working frequency of the frequency converter reduces the rotating speed of the sand pump motor, the rotating speed of the sand pump motor reduces the rotating speed of the sand pump, and the rotating speed of the sand pump reduces the pressure of ore pulp collected by the pressure sensor in the pressurizing ore feeding pipe. When the pressure signal is smaller than the set value of the industrial computer, the industrial computer improves the working frequency of the frequency converter, the working frequency of the frequency converter improves the rotating speed of a sand pump motor, the rotating speed of the sand pump motor improves the rotating speed of the sand pump, the rotating speed of the sand pump improves the ore pulp pressure collected by a pressure sensor in the pressurizing ore feeding pipe, and therefore the automatic pressure control process of the short-cone cyclone is completed. The pressure control range of the short-cone cyclone is 0.05MP-0.24 MP. Signals collected by the density sensor and the flow sensor are transmitted to the industrial computer, the industrial computer analyzes the density signals and the flow signals and then corrects the pressure set by the pressure sensor in the working process by plus or minus 10%, the pressure set by the industrial computer in the working process of the pressure sensor is increased when the ore pulp is low in density and low in flow, and the pressure set by the industrial computer in the working process of the pressure sensor is reduced when the ore pulp is high in density and high in flow, so that the separation efficiency of the short-cone cyclone is improved. The low ore pulp pressure is set when the content of the high-density minerals is high, the high ore pulp pressure is set when the content of the high-density minerals is low, and the separation efficiency and the ore dressing recovery rate of the hydraulic short-cone cyclone are improved by adjusting the ore pulp pressure.
In the ore dressing system of the automatic control hydraulic magnetic short-cone cyclone, the permanent magnetic device is composed of a plurality of even-numbered permanent magnetic systems. The permanent magnetic systems of even number level are arranged outside the lower part of the short cone cyclone cylinder and positioned at the upper part of the lower cone, and the upper top of the permanent magnetic systems is lower than the suction inlet of the overflow pipe. The permanent magnetic system is formed by overlapping a plurality of magnets, the adjacent permanent magnetic systems are arranged in different polarities, namely an NSNS arrangement mode, and the magnetic field intensity of the permanent magnetic system is 0.1T-0.8T. The magnetic mineral of fine particles smaller than 300 meshes in the lower part of the cylinder of the short cone cyclone is tightly attached to the inner wall of the cylinder to rotate away from the suction inlet of the overflow pipe and move downwards to enter the lower cone after the composite force field of magnetic force and gravity is larger than the force of water power moving to the suction inlet of the overflow pipe. Fine particle magnetic minerals which enter the lower cone and are smaller than 300 meshes form a high-density high-concentration suspension bed layer in the lower cone, rotate to move towards the direction of the underflow pipe by clinging to the inner wall of the lower cone, and are discharged by the underflow pipe. Thereby efficiently and stably completing the sorting and recovery of the magnetic minerals with the fine particles of less than 300 meshes.
The automatic control hydraulic magnetic short cone cyclone ore dressing system comprises an automatic control start-stop device, a liquid level sensor, a sand pump motor, an industrial computer, a frequency converter and a short cone cyclone. The liquid level sensor detects that the ore pulp liquid level reaches the set liquid level and then transmits a signal to the industrial computer, the industrial computer gives a starting signal to the frequency converter, the frequency converter starts the sand pump motor and the sand pump, and the sand pump pumps the ore pulp into the short cone swirler for separation. The liquid level sensor detects that the liquid level of the ore pulp is lower than a set liquid level and then transmits a signal to the industrial computer, the industrial computer gives a stop signal to the frequency converter, the frequency converter stops the sand pump motor and the sand pump, and the sand pump stops pumping the ore pulp into the short cone cyclone for separation, so that the automatic control start and stop of the short cone cyclone are completed. The fluctuation of the grade of the high-density mineral concentrate caused by the influence of the air sucked into the ore pulp by too low liquid level on the separation index of the short-cone cyclone is avoided. The sand pump damage caused by the idling of the sand pump after no ore pulp is avoided, the service life of the equipment is prolonged, the labor intensity of workers is reduced, and the sand pump can be unattended.
The invention has the beneficial effects that: the automatic control is given ore deposit concentration and is given ore deposit pressure, and separation efficiency and ore dressing recovery rate are higher than conventional equipment, and high-efficient stable completion is less than the sorting recovery of below 300 mesh fine particle magnetic mineral, and equipment fault rate is low, and automatic opening and shutting can unmanned on duty, and physical method is selected separately to influence the environment less, and equipment area is little, and throughput is big, and the energy consumption is low.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a block diagram of the present invention.
In the figure, 1, a size mixing barrel, 2, an ore feeding pipe, 3, a clean water pipe, 4, a clean water electromagnetic valve, 5, a liquid level sensor, 6, an ore pulp density sensor, 7, a sand pump, 8, a sand pump motor, 9, a flow sensor, 10, a pressure sensor, 11, a pressurizing ore feeding pipe, 12, a barrel body, 13, a lower cone, 14, a bottom flow pipe, 15, an overflow pipe, 16, an overflow port, 17, an industrial computer, 18, a frequency converter and 19, a permanent magnet system.
Detailed Description
[ example 1 ]
The automatic control hydraulic magnetic force short cone swirler mineral processing system in the figure is composed of an automatic control pulp density pulp mixing barrel, a short cone swirler working pressure automatic control device, a permanent magnetic force device and an automatic control start-stop device.
[ example 2 ]
The automatic control ore pulp density pulp mixing barrel in the figure is composed of a pulp mixing barrel 1, an ore feeding pipe 2, a clean water pipe 3, a clean water electromagnetic valve 4, an ore pulp density sensor 6 and an industrial computer 17. The ore pulp after ball milling is fed into the pulp mixing barrel 1 through the ore feeding pipe 2, the density signal of the ore pulp measured by the ore pulp density sensor 6 is transmitted to the industrial computer 17, and the industrial computer 17 carries out analysis processing. The industrial computer 17 controls the adjustment range of the density of the ore pulp to be 1.05-1.15, namely the concentration of the ore pulp is 8-25%, when the density of the ore pulp measured by the ore pulp density sensor 6 is greater than the set value of the industrial computer 17, the industrial computer 17 controls the opening of the clear water electromagnetic valve 4, and clear water in the clear water pipe 3 enters the pulp mixing barrel 1 through the clear water electromagnetic valve 4 and the ore feeding pipe 2 to dilute the ore pulp. When the ore pulp density sensor 6 measures that the density of the ore pulp is smaller than the set value of the industrial computer 17, the industrial computer 17 controls the clean water electromagnetic valve 4 to be closed, and therefore automatic control of the density of the ore pulp is completed. The low ore pulp density is set when the high-density mineral content is high, the high ore pulp density is set when the high-density mineral content is low, and the separation efficiency and the ore dressing recovery rate of the hydraulic short-cone cyclone are improved by adjusting the ore pulp density, namely adjusting the ore liquid ratio.
[ example 3 ]
The automatic control device for the working pressure of the short-cone cyclone in the figure is composed of a size mixing barrel 1, a sand pump 7, a sand pump motor 8, a density sensor 6, a flow sensor 9, a pressure sensor 10, a pressurizing ore feeding pipe 11, a barrel 12, a lower cone 13, a bottom flow pipe 14, an overflow pipe 15, an overflow port 16, an industrial computer 17 and a frequency converter 18. The sand pump 7 arranged at the bottom of the pulp mixing barrel 1 sucks the pulp with the adjusted density and pumps the pulp into the pressurized ore feeding pipe 11, the pulp in the pressurized ore feeding pipe 11 enters a short cone cyclone for separation, high-density ore is discharged from a lower cone 13 through a bottom flow pipe 14, low-density ore is discharged from an overflow pipe 15 through an overflow port 16, and the cone angle of the lower cone 13 is 90-160 degrees. The pressure signal collected by the pressure sensor 10 is transmitted to the industrial computer 17, when the pressure signal is larger than the set value of the industrial computer 17, the industrial computer 17 reduces the working frequency of the frequency converter 18, the working frequency of the frequency converter 18 reduces the rotating speed of the sand pump motor 8, the rotating speed of the sand pump motor 8 reduces the rotating speed of the sand pump 7, and the rotating speed of the sand pump 7 reduces the pressure of ore pulp collected by the pressure sensor 10 in the pressurizing ore feeding pipe 11. When the pressure signal is smaller than the set value of the industrial computer 17, the industrial computer 17 increases the working frequency of the frequency converter 18, the working frequency of the frequency converter 18 increases the rotating speed of the sand pump motor 8, the rotating speed of the sand pump motor 8 increases the rotating speed of the sand pump 7, the rotating speed of the sand pump 7 increases the pressure of the ore pulp collected by the pressure sensor 10 in the ore feeding pipe 11, and therefore the automatic pressure control process of the short-cone cyclone is completed. The pressure control range of the short-cone cyclone is 0.05MP-0.24 MP. Signals collected by the density sensor 6 and the flow sensor 9 are transmitted to the industrial computer 17, the industrial computer 17 analyzes the density signals and the flow signals and then corrects the pressure set by the pressure sensor 10 in a positive and negative 10% mode, the pressure set by the industrial computer 17 to the pressure sensor 10 in a working mode is increased when the ore pulp is low in density and low in flow, and the pressure set by the industrial computer 17 to the pressure sensor 10 in a working mode is reduced when the ore pulp is high in density and high in flow, so that the separation efficiency of the short-cone cyclone is improved. The low ore pulp pressure is set when the content of the high-density minerals is high, the high ore pulp pressure is set when the content of the high-density minerals is low, and the separation efficiency and the ore dressing recovery rate of the hydraulic short-cone cyclone are improved by adjusting the ore pulp pressure.
[ example 4 ]
The permanent magnetic force device in the figure is composed of a plurality of permanent magnetic systems 19 of even-numbered stages. The permanent magnetic systems 19 of even-numbered stages are arranged outside the lower part of the short cone cyclone cylinder 12 and positioned at the upper part of the lower cone 13, and the upper top of the permanent magnetic systems 19 is lower than the suction inlet of the overflow pipe 15. The permanent magnetic system 19 is formed by overlapping a plurality of magnets, the adjacent permanent magnetic systems 19 are arranged in different polarities, namely, in an NSNS arrangement mode, and the magnetic field intensity of the permanent magnetic system 19 is 0.1T-0.8T. After the magnetic field of the composite force of magnetic force and gravity is larger than the force of water moving to the suction inlet of the overflow pipe 15, the magnetic mineral with fine particles smaller than 300 meshes in the lower part of the cylinder 12 of the short cone cyclone rotates close to the inner wall of the cylinder 13 and is far away from the suction inlet of the overflow pipe 15, and the magnetic mineral moves downwards to enter the lower cone 13. The fine magnetic mineral particles which enter the lower cone 13 and are smaller than 300 meshes form a high-density high-concentration suspension bed layer on the lower cone 13, rotate to the direction of the underflow pipe 14 by clinging to the inner wall of the lower cone 13, and are discharged from the underflow pipe 14. Thereby efficiently and stably completing the sorting and recovery of the magnetic minerals with the fine particles of less than 300 meshes.
[ example 5 ]
The automatic control start-stop device in the figure is composed of a liquid level sensor 5, a sand pump 7, a sand pump motor 8, an industrial computer 17, a frequency converter 18 and a short cone swirler. The liquid level sensor 5 detects that the ore pulp liquid level reaches the set liquid level and then transmits a signal to the industrial computer 17, the industrial computer 17 gives a starting signal to the frequency converter 18, the frequency converter 18 starts the sand pump motor 8 and the sand pump 7, and the sand pump pumps the ore pulp into the short cone swirler for separation. The liquid level sensor 5 detects that the liquid level of the ore pulp is lower than the set liquid level and then transmits a signal to the industrial computer 17, the industrial computer 17 gives a stop signal to the frequency converter 18, the frequency converter 18 stops the sand pump motor 8 and the sand pump 7, and the sand pump 7 stops pumping the ore pulp into the short cone cyclone for separation, so that the automatic control start and stop of the short cone cyclone are completed. The fluctuation of the grade of the high-density mineral concentrate caused by the influence of the air sucked into the ore pulp by too low liquid level on the separation index of the short-cone cyclone is avoided. The sand pump 7 is prevented from being damaged due to the fact that the sand pump 7 idles after no ore pulp exists, the service life of equipment is prolonged, the labor intensity of workers is reduced, and the sand pump can be unattended.
Claims (1)
1. The utility model provides an automatic change control water conservancy magnetic force short cone swirler ore dressing system which characterized by:
(1) the automatic slurry mixing device is composed of an automatic control slurry density mixing barrel, a short cone swirler working pressure automatic control device, a permanent magnetic device and an automatic control start-stop device;
(2) the automatic control ore pulp density pulp mixing barrel consists of a pulp mixing barrel, an ore feeding pipe, a clear water electromagnetic valve, an ore pulp density sensor and an industrial computer, wherein the density adjustment range of the ore pulp controlled by the industrial computer is 1.05-1.15, namely the ore pulp concentration is 8-25%;
(3) the low ore pulp density is set when the high-density mineral content is high, the high ore pulp density is set when the high-density mineral content is low, and the separation efficiency and the ore dressing recovery rate of the hydraulic short cone cyclone are improved by adjusting the ore pulp density, namely adjusting the ore liquid ratio;
(4) the automatic control device for the working pressure of the short-cone swirler consists of a slurry mixing barrel, a sand pump motor, a density sensor, a flow sensor, a pressure sensor, a pressurizing ore feeding pipe, a barrel body, a lower cone, a bottom flow pipe, an overflow port, an industrial computer and a frequency converter, wherein the cone angle of the lower cone is 90-160 degrees, and the pressure control range of the short-cone swirler is 0.05-0.24 MP;
(5) signals collected by the density sensor and the flow sensor are transmitted to an industrial computer, and the industrial computer analyzes the density signals and the flow signals and then corrects the pressure set by the pressure sensor by plus or minus 10 percent;
(6) the pressure set by the industrial computer for the work of the pressure sensor is increased when the ore pulp is low in density and low in flow, and the pressure set by the industrial computer for the work of the pressure sensor is reduced when the ore pulp is high in density and high in flow, so that the separation efficiency of the short cone cyclone is improved;
(7) the low ore pulp pressure is set when the high-density mineral content is high, the high ore pulp pressure is set when the high-density mineral content is low, and the separation efficiency and the ore dressing recovery rate of the hydraulic short-cone cyclone are improved by adjusting the ore pulp pressure;
(8) the permanent magnetic device consists of a plurality of permanent magnetic systems of even levels, the permanent magnetic systems of even levels are arranged outside the lower part of the short cone cyclone cylinder and positioned at the upper part of the lower cone, and the upper top of the permanent magnetic systems is lower than the suction inlet of the overflow pipe;
(9) the permanent magnetic system is formed by overlapping a plurality of magnets, the adjacent permanent magnetic systems are arranged in different polarities, namely an NSNS arrangement mode, and the magnetic field intensity of the permanent magnetic system is 0.1T-0.8T;
(10) the automatic control start-stop device consists of a liquid level sensor, a sand pump motor, an industrial computer, a frequency converter and a short cone swirler;
(11) the sand pump pumps the ore pulp into the short cone swirler and sorts after the liquid level sensor detects the ore pulp liquid level and reaches the set liquid level, the sand pump stops pumping the ore pulp into the short cone swirler to sort after the liquid level sensor detects that the ore pulp liquid level is lower than the set liquid level, the fluctuation of high-density mineral concentrate grade caused by the influence of the short cone swirler sorting index in the air suction ore pulp due to too low liquid level is avoided, the sand pump damage caused by the idle running of the sand pump after no ore pulp is avoided, the service life of equipment is prolonged, the labor intensity of workers is reduced, and the sand pump can be unattended.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409795.4A CN111036389A (en) | 2019-05-17 | 2019-05-17 | Automatic control hydraulic magnetic force short cone swirler ore dressing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910409795.4A CN111036389A (en) | 2019-05-17 | 2019-05-17 | Automatic control hydraulic magnetic force short cone swirler ore dressing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111036389A true CN111036389A (en) | 2020-04-21 |
Family
ID=70231701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910409795.4A Pending CN111036389A (en) | 2019-05-17 | 2019-05-17 | Automatic control hydraulic magnetic force short cone swirler ore dressing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111036389A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB773364A (en) * | 1952-03-11 | 1957-04-24 | Theodore Rufus Naylor | Improvements in or relating to wet cyclones |
| CN102008998A (en) * | 2010-10-29 | 2011-04-13 | 东南大学 | Automatic control device and automatic control method of hydrocyclone |
| CN103350037A (en) * | 2013-07-02 | 2013-10-16 | 太原科技大学 | Overflow particle size control method for cyclone |
| CN203620808U (en) * | 2013-11-28 | 2014-06-04 | 浙江泰正钼业开发有限公司 | Cyclone for screening molybdenum concentrate |
| RU2012150701A (en) * | 2012-11-27 | 2014-06-10 | Закрытое акционерное общество "СОМЭКС" | HYDROCYCLON INSTALLATION WITH ADJUSTABLE CONSTRUCTION PARAMETERS |
| CN203778213U (en) * | 2014-03-11 | 2014-08-20 | 中国矿业大学 | Magnetic interference dense medium cyclone |
| CN104624411A (en) * | 2014-12-24 | 2015-05-20 | 中冶长天国际工程有限责任公司 | Method and device for classification pressure control in ore grinding classification process |
| CN106955800A (en) * | 2017-04-08 | 2017-07-18 | 薛鹏飞 | Novel dry method of purification and purification structure |
| CN109078769A (en) * | 2017-06-14 | 2018-12-25 | 淄博华源矿业有限公司 | Cyclone ore feed pressure control device |
| CN109201354A (en) * | 2018-11-06 | 2019-01-15 | 中南大学 | MAGNETIC HYDROCYCLONES, magnetic reconnection conjunction separation system and the magnetic reconnection selected for weak magnetic mineral closes the method sorted |
| CN208711962U (en) * | 2018-08-31 | 2019-04-09 | 攀枝花学院 | Laboratory movable small hydrocyclone |
-
2019
- 2019-05-17 CN CN201910409795.4A patent/CN111036389A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB773364A (en) * | 1952-03-11 | 1957-04-24 | Theodore Rufus Naylor | Improvements in or relating to wet cyclones |
| CN102008998A (en) * | 2010-10-29 | 2011-04-13 | 东南大学 | Automatic control device and automatic control method of hydrocyclone |
| RU2012150701A (en) * | 2012-11-27 | 2014-06-10 | Закрытое акционерное общество "СОМЭКС" | HYDROCYCLON INSTALLATION WITH ADJUSTABLE CONSTRUCTION PARAMETERS |
| CN103350037A (en) * | 2013-07-02 | 2013-10-16 | 太原科技大学 | Overflow particle size control method for cyclone |
| CN203620808U (en) * | 2013-11-28 | 2014-06-04 | 浙江泰正钼业开发有限公司 | Cyclone for screening molybdenum concentrate |
| CN203778213U (en) * | 2014-03-11 | 2014-08-20 | 中国矿业大学 | Magnetic interference dense medium cyclone |
| CN104624411A (en) * | 2014-12-24 | 2015-05-20 | 中冶长天国际工程有限责任公司 | Method and device for classification pressure control in ore grinding classification process |
| CN106955800A (en) * | 2017-04-08 | 2017-07-18 | 薛鹏飞 | Novel dry method of purification and purification structure |
| CN109078769A (en) * | 2017-06-14 | 2018-12-25 | 淄博华源矿业有限公司 | Cyclone ore feed pressure control device |
| CN208711962U (en) * | 2018-08-31 | 2019-04-09 | 攀枝花学院 | Laboratory movable small hydrocyclone |
| CN109201354A (en) * | 2018-11-06 | 2019-01-15 | 中南大学 | MAGNETIC HYDROCYCLONES, magnetic reconnection conjunction separation system and the magnetic reconnection selected for weak magnetic mineral closes the method sorted |
Non-Patent Citations (2)
| Title |
|---|
| 《选矿手册》编辑委员会: "《选矿手册 第3卷 第1分册》", 冶金工业出版社, pages: 288 - 290 * |
| 张国旺: "《现代选矿技术手册 第1册 破碎筛分与磨矿分级》", 31 March 2016, 冶金工业出版社, pages: 547 - 549 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107649287B (en) | Magnetic micro-fluidic concentrator and complete mineral processing equipment thereof | |
| CN101844113B (en) | Flotation machine for efficiently recovering fine-particle minerals | |
| CN104437834A (en) | Centrifugal ore-dressing device and ore-dressing method thereof | |
| CN201702018U (en) | Grading-sorting combined type magnetic separation column | |
| CN206701482U (en) | A kind of new elutriation magnetic separator | |
| CN109530080B (en) | Magnetic-gravity combined separation process | |
| CN107127048B (en) | Magnetic micro-fluidic concentrator and complete magnetic separation equipment thereof | |
| CN201073617Y (en) | Permanent magnetism rotational flow dewatering channel | |
| CN204320465U (en) | A kind of centrifugal separation device | |
| CN109794353A (en) | A kind of three product radial magnetic field magnetic force cyclones for magnetic iron ore sorting classifying | |
| CN204892121U (en) | Vibrating magnetic field screening machine | |
| CN2782219Y (en) | Hydraulic power separator | |
| CN111036389A (en) | Automatic control hydraulic magnetic force short cone swirler ore dressing system | |
| CN107233997B (en) | Magnetic micro-fluidic concentrator with intelligent regulation and control function and complete set of magnetic separation equipment thereof | |
| CN109499758A (en) | A kind of rotary table column magnetic separator and based on iron ore concentrate method for separating thereon | |
| CN111036387A (en) | Automatic control ore dressing system for hydraulic short cone cyclone | |
| CN205495839U (en) | Continuous material discharge's particulate coal centrifugation sorting facilities | |
| CN112844884B (en) | High-efficiency iron separation system and method for blast furnace gas mud | |
| CN115069409A (en) | Grinding and selecting integrated machine | |
| CN103586128A (en) | Cyclonic magnetic separation column | |
| CN209452035U (en) | A kind of rotary table column magnetic separator | |
| CN203220968U (en) | Intelligent iron ore classificator | |
| CN209317889U (en) | A kind of fluorine carbon cerium type rare earth weight magnetic tailing recycling production system | |
| CN113399102A (en) | Gravity multilayer ore dressing equipment | |
| CN203076081U (en) | Magnetic mineral separation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |