CN110918270A - Magnetic flotation column with coil height adjustable and forced ore discharge device and control method - Google Patents
Magnetic flotation column with coil height adjustable and forced ore discharge device and control method Download PDFInfo
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- CN110918270A CN110918270A CN201911411912.7A CN201911411912A CN110918270A CN 110918270 A CN110918270 A CN 110918270A CN 201911411912 A CN201911411912 A CN 201911411912A CN 110918270 A CN110918270 A CN 110918270A
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- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/14—Flotation machines
- B03D1/16—Flotation machines with impellers; Subaeration machines
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- 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
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- 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
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Abstract
The invention belongs to the technical field of magnetic flotation columns, and discloses a magnetic flotation column with an adjustable coil height and a forced ore discharge device and a control method, wherein the magnetic flotation column with the adjustable coil height and the forced ore discharge device and the control system comprise: the system comprises a video monitoring system, a master control system, an inflation system, a micro-bubble generation system, a sorting system, a recovery system, a flushing system, a coil adjusting system, a video enhancement system and a display system. The invention not only ensures the quantity and quality of flotation, but also reduces the height of the flotation column through the separation system; meanwhile, different flotation video enhancement modes are obtained through the video enhancement system according to different flotation video resolution ratios, so that flotation video enhancement in different modes is carried out on flotation videos with different resolution ratios, the flotation video enhancement treatment is more in line with the characteristics of the flotation videos, a better flotation video enhancement effect is obtained, and the ultra-clear visual effect of flotation video display is realized.
Description
Technical Field
The invention belongs to the technical field of magnetic flotation columns, and particularly relates to a magnetic flotation column with a coil height adjustable belt and a forced ore discharge device and a control method.
Background
The flotation column is an inflatable flotation machine which inflates and stirs ore pulp by compressed air through a porous medium (aerator), and is of a type such as a micro-bubble counter-current flotation column and a micro-bubble jet flow flotation column. The section of the plate-type flotation column is circular, square or round at the upper part and the lower part. The ore pulp is fed from the upper feeding pipe and flows into the flotation column uniformly. Compressed air is introduced into the column through a plenum chamber at the lower end of the column via a vertically disposed air tube. A large amount of fine bubbles that form distribute uniformly on whole section, and the ore pulp descends slowly under the action of gravity, and the bubble rises slowly from bottom to top, constantly meets in the post with the useful mineral that will select in the ore pulp. During the convection movement, the mineral to be selected is attached to the surface of the rising air bubbles due to the action of the medicament, a mineralized foam layer is formed at the upper part of the cylinder, and is scraped into or automatically overflows into a concentrate tank by a scraper, and the rest mineral (generally gangue or non-selected mineral) is discharged from a tailing pipe at the conical bottom at the lower part of the cylinder. There is also a self-overflowing flotation column. The self-overflow flotation column consists of an upper body, a middle cylinder and a lower body, and the whole cylinder is circular. The feeding pipe in the flotation column has various depths, the number of feeding points of the feeding pipe is different according to the size of the column diameter, and the feeding points are divided into three, four and eight points. The aeration of the flotation column is realized by the way that an air source enters a vertically arranged microporous plastic air pipe through an air chamber at the lower end of the column body through an air pipe. However, the existing magnetic flotation column has poor flotation quality; meanwhile, flotation control is performed on the unclear image of the flotation monitoring video.
In summary, the problems of the prior art are as follows: the existing magnetic flotation column has poor flotation quality; meanwhile, the flotation monitoring video image is not clear.
In addition, in the prior art, flotation videos with different resolutions are not enhanced in different modes, so that the enhancement processing effect of the flotation videos is poor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a magnetic flotation column with a coil height adjustable belt forced ore discharging device and a control method.
The invention is realized in this way, a control method of magnetic flotation columns of the coil height adjustable forced ore discharging device, the control method of magnetic flotation columns of the coil height adjustable forced ore discharging device comprises:
the first step, sorting: (1) and (3) feeding and recovering: the selected material with pressure enters a column body of the flotation column directly through a feeding distribution box or through a self-suction type micro-bubble generator, wherein the material easy to float mineralizes in the column body, floats to the upper part of the flotation column and is collected by a foam collecting device for recycling, then a concentrate product is discharged, and the rest material descends in the column body;
(2) reverse collision mineralization recovery of a flotation column: the residual materials are mineralized with the floating bubbles in the downward moving process in the column body, particles with good floatability are adhered to the bubbles to form mineralized bubbles, and the mineralized bubbles float to the upper part of the column body and are trapped by a foam trapping device and are recovered; the reverse collision mineralization recovery section is provided with a variable resistance static medium plate, so that a variable resistance three-dimensional medium plate is formed in the column body, mineralized bubbles form S-shaped streaming which develops along the axial direction in the rising process and reversely collide and mineralize with the bubbles rising from the bottom of the flotation column, the mineralized bubbles form a foam layer on the upper part of the flotation column body after passing through the variable resistance static medium plate, the foam layer is trapped and recovered by the foam, a concentrate product is discharged, poor particles fall off from the bubbles in the rising process, and the flotation selectivity is increased;
(3) and (3) heavy floating recycling: the residual materials after being reversely collided, mineralized and recovered by the flotation column enter a cyclone device, the materials comprise low-density middlings and high-density tailings, the middlings are used as circulating media, the middlings are pumped to a self-suction type microbubble generator through a circulating pressurization pump, the middlings with pressure enter the cyclone device tangentially, the middlings circulate in the cyclone device to form a cyclone force field, the tailings fall from the side wall of the cyclone device to be discharged, optional materials in the middlings rise into the flotation column to be combined with bubbles to mineralize bubbles to float to the upper part of the column body, and concentrate products are discharged after being recovered by a foam collecting device;
secondly, flotation monitoring: 1) acquiring the resolution of a flotation video to be displayed;
2) acquiring a video enhancement mode corresponding to the resolution of the flotation video to be displayed according to the corresponding relation between different resolutions and the flotation video enhancement mode;
3) enhancing the flotation video to be displayed in a flotation video enhancement mode;
4) if the resolution is the first resolution, acquiring a mode for reducing noise of the flotation video to be displayed as a flotation video enhancement mode;
if the resolution is a second resolution, acquiring a mode of performing contrast enhancement and saturation enhancement on the flotation video to be displayed as a flotation video enhancement mode, wherein the second resolution is greater than the first resolution;
the first resolution is the resolution corresponding to standard definition and smooth flotation video;
the second resolution is a high-definition flotation video and a resolution corresponding to the high-definition flotation video;
5) judging whether the resolution is smaller than a preset resolution or not;
if so, acquiring a mode for reducing noise of the flotation video to be displayed as a flotation video enhancement mode;
if not, acquiring a mode of performing contrast enhancement and saturation enhancement on the flotation video to be displayed as a flotation video enhancement mode;
6) performing enhancement processing on the flotation video to be displayed in a mode of reducing noise of the flotation video to be displayed;
the method for enhancing the flotation video to be displayed in a mode of reducing noise of the flotation video to be displayed comprises the following steps:
acquiring an edge part in a flotation video frame of the flotation video to be displayed in an edge detection mode;
cropping the flotation video frame into a first portion and a second portion, the first portion being the edge portion and the second portion being a portion other than the edge portion;
denoising the second part in a denoising mode;
combining the first part and the denoised second part into an image to serve as the flotation video frame after the flotation video frame is enhanced;
the method for reducing the noise of the flotation video to be displayed further comprises the following steps:
edge smoothing and saturation reduction.
Further, in the first step of separation, the micro bubbles and the fed ore pulp are subjected to reverse collision mineralization separation through a separation system; then, recovering the clean coal particles which are not separated in the flotation section through a recovery system; the high ash material entrained in the ore is cleaned by a flushing system.
And further, in the second step of flotation monitoring, the flotation video monitored by the magnetic flotation column is enhanced through a video enhancement system.
Further, before the first step of sorting, the following steps are carried out:
monitoring the flotation process of the magnetic flotation column by using a video monitoring system and a camera;
the main control system utilizes the inflation equipment to inflate air into the magnetic flotation columns through the inflation system;
the micro-bubble generation system utilizes the micro-bubble generator to pressurize and spray the circulating ore pulp to suck air, mix foaming agent and crush bubbles, and release and separate out a large amount of micro-bubbles through pressure.
Further, the second step is followed by: and displaying the video of the flotation process of the magnetic flotation column by using a display through a display system.
Another object of the present invention is to provide a control system for a magnetic separation column of a forced ore discharging device with an adjustable coil height, which implements the control method for a magnetic separation column of a forced ore discharging device with an adjustable coil height, the control system for a magnetic separation column of a forced ore discharging device with an adjustable coil height comprising:
the video monitoring system is connected with the main control system and is used for monitoring the flotation process of the magnetic flotation column through the camera;
the main control system is connected with the video monitoring system, the inflation system, the microbubble generation system, the sorting system, the recovery system, the flushing system, the coil adjusting system, the video enhancement system and the display system and is used for controlling each system to normally work through the main control computer;
the air charging system is connected with the master control system and is used for charging air into the magnetic flotation columns through air charging equipment;
the microbubble generation system is connected with the main control system and used for pressurizing, spraying and sucking air, mixing a foaming agent and crushing bubbles into circulating ore pulp through the microbubble generator and releasing and separating out a large number of microbubbles through pressure;
the separation system is connected with the main control system and is used for carrying out reverse collision mineralization separation on the fed ore pulp through the micro bubbles;
the recovery system is connected with the main control system and is used for recovering the cleaned coal particles which are not separated in the flotation section;
the flushing system is connected with the main control system and is used for cleaning high ash materials carried in the ores;
the coil adjusting system is connected with the main control system and used for adjusting the height of the magnetic floating column coil;
the video enhancement system is connected with the main control system and is used for enhancing the flotation video monitored by the magnetic flotation column;
and the display system is connected with the main control system and is used for displaying the video of the flotation process of the magnetic flotation column through a display.
Another object of the present invention is to provide a magnetic levitation column comprising:
the support frame is a steel structure support formed by welding steel pipes and is supported on the foundation;
the supporting plates are composed of locking pieces fixedly connected to the supporting frame and plate-shaped bodies supported on the locking pieces and provided with holes in the centers, the supporting plates are four groups, one group of the supporting plates is fixedly connected to the lower portion of the supporting frame, and the other three groups of the supporting plates are respectively positioned on the middle upper portion of the supporting frame;
the top of the device is a cylinder with a connecting flange, the middle part of the device is a cone connected with the lower part of the cylinder into a whole, the cone is supported in a central hole of a supporting plate fixedly connected with the lower part of the supporting frame, and the lower part of the device is a cylinder connected with the lower part of the cone and provided with a discharge valve;
the separation column is positioned in the central holes of the three groups of support plates at the middle upper part of the support frame, and is a cylinder body made of a non-magnetic material, and the bottom of the cylinder body is provided with a connecting flange which is fixedly connected with the connecting flange at the top of the ore discharging device through bolts;
the overflow groove is a cylinder with an inclined bottom, the bottom of the overflow groove is fixedly connected to the outer side of the upper part of the separation column, an ore discharge pipe is arranged at the lower part of the bottom of the overflow groove, and the overflow groove is made of glass fiber reinforced plastic;
the magnetic system is provided with three groups of annular electromagnetic coil windings which are sleeved outside the middle upper part of the sorting column, and each group of annular electromagnetic coil windings are fixedly arranged on three groups of supporting discs on the middle upper part of the supporting frame respectively;
an air flow meter. The flowmeter is fixedly arranged on the outer side of the upper part of the support frame through a connecting rod and a locking piece, the lower part of the flowmeter is connected with a valve and an inflation tube, the other end of the inflation tube is arranged in a conical body in the middle of the ore discharging device, and the upper part of the inflation tube is provided with an air inlet;
the air disperser is a cylinder with a top sealed at the upper part, is made of microporous materials, is arranged in the lower part of the separation column, and the lower part of the air disperser is fixedly connected with an inflation pipe in a conical body arranged in the middle of the ore discharge device;
the ascending water flow device comprises an ascending water flow pipe fixedly connected to one side of a conical body in the middle of the ore discharging device and provided with a valve, and an ascending water flow annular pipe communicated with the ascending water flow pipe, wherein water spray holes are uniformly distributed in the side surface of an inner ring of the ascending water flow annular pipe, and the ascending water flow annular pipe is arranged in the lower part of the separation column and sleeved outside the air disperser.
Further, the magnetic flotation column further comprises: the ore feeding pipe is made of non-magnetic conductive materials, is fixedly arranged at the upper part of the supporting frame through a connecting rod and a locking piece, is arranged in the upper part of the separation column and can be adjusted up and down.
The invention also aims to provide an information data processing terminal for realizing the control method of the magnetic flotation column of the forced ore discharging device with the adjustable coil height.
Another object of the present invention is to provide a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to execute the method for controlling a magnetic levitation pillar of a forced ore discharging device with an adjustable coil height.
The invention has the advantages and positive effects that: the invention utilizes the internal relation and difference of material density and surface property through the sorting system, so that the materials pass through a sorting chain of flotation-gravity separation-flotation to form a strengthened sorting mechanism, thereby not only ensuring the quantity and quality of flotation, but also reducing the height of a flotation column; meanwhile, different flotation video enhancement modes are obtained through the video enhancement system according to different flotation video resolution ratios, so that flotation video enhancement in different modes is carried out on flotation videos with different resolution ratios, the flotation video enhancement treatment is more in line with the characteristics of the flotation videos, a better flotation video enhancement effect is obtained, and the ultra-clear visual effect of flotation video display is realized.
The magnetic separation column of the forced ore discharging device with the adjustable coil height can adjust the vertical position of the supporting plate on the supporting frame up and down through the locking piece on the supporting plate, so that the position of a magnetic system is changed, the magnetic field distribution in the separation column is changed, and the requirements of different mineral separation are met. In order to ensure the stability of the liquid level of the ore pulp in the separation column, an ore discharge valve of the ore discharge device can be manual or electric. The feeding pipe is adjusted to the optimal position, and the ascending water flow and the aeration quantity are respectively adjusted through the ascending water flow device and the air flow meter.
After the magnetic flotation machine is ready, firstly, a power supply control cabinet is started to supply pulse current (or pass through a permanent magnet) to an annular electromagnetic coil winding, so that a magnetic field is generated in the separation column and is adjusted to be in a proper magnetic field intensity, meanwhile, the air inflation amount in the separation column is adjusted through an air flow meter, then, the ore pulp stirred by adding the medicament is fed into the separation column through an ore feeding pipe, and the separation of the minerals is started under the action of magnetic force, buoyancy, gravity and the like.
Drawings
Fig. 1 is a flow chart of a magnetic flotation column and a control method of a forced ore discharging device with an adjustable coil height belt according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a magnetic flotation column and a control system of the forced ore discharging device with the coil height adjustable belt according to the embodiment of the invention.
Fig. 3 is a schematic diagram of an overall structure of a magnetic levitation apparatus according to an embodiment of the present invention.
Fig. 4 is a sorting diagram of a magnetic separator.
FIG. 5 is a cross-sectional view of a column of a magnetic levitation separator when the column is cylindrical.
FIG. 6 is a sectional view of the magnetic separator column when the column is a square tube.
FIG. 7 is a cross-sectional view of a magnetic separator column in the form of a hexagonal cylinder.
FIG. 8 is a sectional view of the magnetic separator when the separation column is an octagonal cylinder.
Fig. 9 is a structure view of the ore discharging device of the magnetic flotation machine.
FIG. 10 is an enlarged view of the circular pipe structure of the ascending water flow of the magnetic separator.
In the figure: 1. a video monitoring system; 2. a master control system; 3. an inflation system; 4. a microbubble generation system; 5. a sorting system; 6. a recovery system; 7. flushing the system; 8. a coil adjustment system; 9. a video enhancement system; 10. a display system; 11. a mine pipe; 12 an overflow channel; 13. a sorting column; 14. a magnetic system; 15. a locking member; 16. a support frame; 17. an air disperser; 18. an ascending water flow annular pipe; 19. a mine discharge device; 20. an ascending water flow pipe; 21. a discharge valve; 22. an air flow meter; 23. a bolt; 24. an air tube; 25. magnetic mineral particles; 26. gangue minerals; 27. air bubbles.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The existing magnetic flotation column has poor flotation quality; meanwhile, the flotation monitoring video image is not clear. In addition, in the prior art, flotation videos with different resolutions are not enhanced in different modes, so that the enhancement processing effect of the flotation videos is poor.
To solve the above problems, the structure of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the magnetic flotation column of the forced ore discharging device with the adjustable coil height provided by the invention comprises the following steps:
and S101, monitoring the flotation process of the magnetic flotation column by using a video monitoring system and a camera.
And S102, the main control system utilizes the air charging equipment to charge air into the magnetic flotation columns through the air charging system.
S103, pressurizing and jetting the circulating ore pulp by using a micro-bubble generator through a micro-bubble generating system to suck air, mix a foaming agent and crush bubbles, and releasing and separating out a large number of micro-bubbles through pressure.
S104, carrying out reverse collision mineralization separation on the microbubbles and the fed ore pulp through a separation system; recovering the cleaned coal particles which are not separated in the flotation section through a recovery system; the high ash material entrained in the ore is cleaned by a flushing system.
And S105, adjusting the height of the magnetic floating column coil through a coil adjusting system.
And S106, enhancing the flotation video monitored by the magnetic flotation column through a video enhancement system.
And S107, displaying the video of the flotation process of the magnetic flotation column by using a display through a display system.
As shown in fig. 2, the control system of the magnetic flotation column of the forced ore discharging device with adjustable coil height according to the embodiment of the present invention includes: the system comprises a video monitoring system 1, a main control system 2, an inflation system 3, a microbubble generation system 4, a sorting system 5, a recovery system 6, a flushing system 7, a coil adjusting system 8, a video enhancement system 9 and a display system 10.
The video monitoring system 1 is connected with the main control system 2 and is used for monitoring the flotation process of the magnetic flotation column through a camera;
the main control system 2 is connected with the video monitoring system 1, the inflation system 3, the microbubble generation system 4, the sorting system 5, the recovery system 6, the flushing system 7, the coil adjusting system 8, the video enhancement system 9 and the display system 10, and is used for controlling each system to normally work through the main control machine.
And the air charging system 3 is connected with the main control system 2 and is used for charging air into the magnetic separation column through air charging equipment.
And the micro-bubble generation system 4 is connected with the main control system 2 and used for pressurizing and spraying the circulating ore pulp through the micro-bubble generator to suck air, mix a foaming agent and crush bubbles and release and separate out a large amount of micro-bubbles through pressure.
And the sorting system 5 is connected with the main control system 2 and is used for carrying out reverse collision mineralization sorting on the fed ore pulp through micro bubbles.
And the recovery system 6 is connected with the main control system 2 and is used for recovering the cleaned coal particles which are not separated in the flotation section.
And the flushing system 7 is connected with the main control system 2 and is used for cleaning high ash materials carried in the ore.
And the coil adjusting system 8 is connected with the main control system 2 and is used for adjusting the height of the magnetic floating column coil.
The video enhancement system 9 is connected with the main control system 2 and is used for enhancing the flotation video monitored by the magnetic flotation column;
and the display system 10 is connected with the main control system 2 and is used for displaying the video of the flotation process of the magnetic flotation column through a display.
The invention is further described with reference to specific examples.
Example 1
The sorting system 5 provided by the embodiment of the invention has the following sorting method:
(1) and (3) feeding and recovering: the selected material with pressure enters a column body of the flotation column directly through a feeding distribution box or through a self-suction type micro-bubble generator, the material easy to float mineralizes in the column body, floats to the upper part of the flotation column and is collected by a foam collecting device for recycling, then a concentrate product is discharged, and the rest material descends in the column body.
(2) Reverse collision mineralization recovery of a flotation column: the residual materials are mineralized with the floating bubbles in the downward moving process in the column body, particles with good floatability are adhered to the bubbles to form mineralized bubbles, and the mineralized bubbles float to the upper part of the column body and are trapped by a foam trapping device and are recovered; the variable-resistance type static medium plate is arranged in the reverse collision mineralization recovery section, a variable-resistance type three-dimensional medium plate is formed in the column body, mineralized bubbles form S-shaped streaming flow which develops along the axial direction in the rising process, the mineralized bubbles are collided and mineralized with the bubbles rising from the bottom of the flotation column in the reverse direction in China, a foam layer is formed on the upper portion of the flotation column body after the mineralized bubbles pass through the variable-resistance type static medium plate and is trapped and recovered by foam, concentrate products are discharged, poor particles fall off from the bubbles in the rising process, and the flotation selectivity is improved.
(3) Heavy-floating recycling: the residual material after being reversely collided, mineralized and recovered by the flotation column enters a cyclone device, the material consists of low-density middling and high-density tailings, the middling is used as a circulating medium, the middling is pumped to a self-suction type microbubble generator through a circulating pressurization pump, the middling under pressure enters the cyclone device tangentially, the middling circulates in the cyclone device to form a cyclone force field, the tailings fall from the side wall of the cyclone device to be discharged, optional materials in the middling rise into the flotation column to be combined with bubbles to mineralize bubbles to float to the upper part of the column body, and a concentrate product is discharged after being recovered by a foam collecting device.
Example 2
The video enhancement system 9 provided by the embodiment of the invention has the following enhancement method:
1) and acquiring the resolution of the flotation video to be displayed.
2) And acquiring the video enhancement mode corresponding to the resolution of the flotation video to be displayed according to the corresponding relation between different resolutions and the flotation video enhancement mode.
3) And performing enhancement processing on the flotation video to be displayed in the flotation video enhancement mode.
The invention provides a method for acquiring a flotation video enhancement mode corresponding to the resolution of a flotation video to be displayed according to the corresponding relation between different resolutions and the flotation video enhancement mode, which comprises the following steps:
and if the resolution is the first resolution, acquiring a mode for reducing noise of the flotation video to be displayed as a flotation video enhancement mode.
And if the resolution is a second resolution, acquiring a mode of performing contrast enhancement and saturation enhancement on the flotation video to be displayed as a flotation video enhancement mode, wherein the second resolution is greater than the first resolution.
The first resolution is the resolution corresponding to standard definition and smooth flotation video.
And the second resolution is the high-definition flotation video and the resolution corresponding to the high-definition flotation video.
Example 3
The method for acquiring the flotation video enhancement mode corresponding to the resolution of the flotation video to be displayed according to the corresponding relation between different resolutions and the flotation video enhancement mode comprises the following steps:
and judging whether the resolution is smaller than a preset resolution or not.
And if so, acquiring a mode for reducing noise of the flotation video to be displayed as a flotation video enhancement mode.
And if not, acquiring a mode of performing contrast enhancement and saturation enhancement on the flotation video to be displayed as a flotation video enhancement mode.
The invention provides a method for enhancing flotation video data corresponding to a flotation video to be displayed in a flotation video enhancement mode, which comprises the following steps: and performing enhancement processing on the flotation video to be displayed in a mode of reducing noise of the flotation video to be displayed.
The method for enhancing the flotation video to be displayed in a mode of reducing noise of the flotation video to be displayed comprises the following steps:
and acquiring an edge part in a flotation video frame of the flotation video to be displayed in an edge detection mode.
And cutting the flotation video frame into a first part and a second part, wherein the first part is the edge part, and the second part is the part except the edge part.
And denoising the second part in a denoising mode.
And combining the first part and the denoised second part into an image to be used as the flotation video frame after the flotation video frame is enhanced.
The method for reducing the noise of the flotation video to be displayed further comprises the following steps:
edge smoothing and saturation reduction.
Example 4
As shown in fig. 3 to 10, the magnetic levitation column provided by the embodiment of the present invention includes: the support frame 16 is a steel structure frame formed by welding steel pipes and is supported on a foundation; the supporting disc-is made up of retaining member 15 that is firm-connected on the supporting arm and the plate body that supports the centre on the retaining member and has hole, the supporting disc is four groups totally, one group of them is firm-connected on the inferior part of the supporting arm, another three groups locate at the middle upper portion of the supporting arm separately; the top of the ore discharging device 19 is a cylinder with a connecting flange, the middle part is a cone connected with the lower part of the cylinder into a whole, the cone is supported in a central hole of a supporting disc fixedly connected with the lower part of a supporting frame, and the lower part is a cylinder connected with the lower part of the cone and connected with an ore discharging valve 21; the separation column 13 is positioned in the central holes of the three groups of support plates at the middle upper part of the support frame, and is a cylinder body made of a non-magnetic material, the bottom of the cylinder body is provided with a connecting flange which is fixedly connected with the connecting flange at the top of the ore discharging device through a bolt 23, and the separation column can be a cylinder, a square cylinder, a hexagonal cylinder or an octagonal cylinder according to different requirements; the overflow groove 12 is a barrel body with an inclined bottom, the bottom of the overflow groove is fixedly connected with the outer side of the upper part of the separation column, an ore discharge pipe is arranged at the lower part of the bottom, and the overflow groove is made of glass fiber reinforced plastic; the magnetic system 14 is three groups of annular electromagnetic coil windings or permanent magnets which are sleeved outside the middle upper part of the separation column, and each group of annular electromagnetic coil windings are respectively fixedly arranged on three groups of supporting discs on the middle upper part of the supporting frame; the air flow meter 22 is fixedly arranged on the outer side of the upper part of the support frame through a connecting rod and a locking piece, the lower part of the air flow meter is connected with a valve and an inflation tube 24, the other end of the inflation tube is arranged in a conical body in the middle of the ore discharging device, and the upper part of the inflation tube is provided with an air inlet; the air disperser 17 is a cylinder with a top sealed at the upper part, is made of microporous materials, is arranged in the lower part of the separation column, and the lower part of the air disperser is fixedly connected with an inflation pipe in a conical body arranged in the middle of the ore discharging device; the ascending water flow device comprises an ascending water flow pipe 20 fixedly connected to one side of a conical body in the middle of the ore discharging device and provided with a valve, and an ascending water flow annular pipe 18 communicated with the ascending water flow pipe, wherein water spray holes are uniformly distributed on the side surface of an inner ring of the ascending water flow annular pipe, and the ascending water flow annular pipe is arranged in the lower part of the separation column and sleeved outside the air disperser; the ore feeding pipe 11 is made of non-magnetic conductive material, is fixedly arranged at the upper part of the supporting frame through a connecting rod and a locking piece and is arranged in the upper part of the separation column.
The upper and lower positions of the supporting plate on the supporting frame can be adjusted up and down through the locking piece on the supporting plate, so that the position of a magnetic system is changed, the magnetic field distribution in the separation column is changed, and the requirements of different mineral separation are met. In order to ensure the stability of the liquid level of the ore pulp in the separation column, an ore discharge valve of the ore discharge device can be manual or electric. The feeding pipe is adjusted to the optimal position, and the ascending water flow and the aeration quantity are respectively adjusted through the ascending water flow device and the air flow meter.
After the magnetic flotation machine is ready, firstly, a power supply control cabinet is started to supply pulse current (or pass through a permanent magnet) to an annular electromagnetic coil winding, so that a magnetic field is generated in the separation column and is adjusted to be in a proper magnetic field intensity, meanwhile, the air inflation amount in the separation column is adjusted through an air flow meter, then, the ore pulp stirred by adding the medicament is fed into the separation column through an ore feeding pipe, and the separation of the minerals is started under the action of magnetic force, buoyancy, gravity and the like.
In the invention, mineral particles in the ore pulp freely fall under the action of gravity, rising air bubbles 27 collide with the falling mineral particles to form mineralized air bubbles, gangue minerals 26 with good flotability are captured by the rising air bubbles and rise together with the air bubbles to enter a magnetic field region, magnetic mineral particles mixed in the minerals carried by the air bubbles fall off under the action of a magnetic field, and non-magnetic minerals continue to rise along with the air bubbles to an overflow groove and are discharged from an ore discharge pipe at the bottom of the overflow groove as tailing foams. During the sorting process, the magnetic mineral particles 25 begin to "disperse-agglomerate-disperse-re-disperse" under the influence of the pulsed magnetic field, so that gangue minerals entrained therein are trapped by the gas bubbles as they are dispersed. The magnetic mineral forms magnetic groups or magnetic chains due to the action of residual magnetism, moves downwards under the action of gravity, is rinsed by ascending water flow in the descending process, and some gangue minerals mixed in the magnetic groups or magnetic chains are captured by air bubbles again, so that the purity of the magnetic mineral is further improved, and finally the magnetic mineral is discharged along with the underflow ore discharging device.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When used in whole or in part, can be implemented in a computer program product that includes one or more computer instructions. When loaded or executed on a computer, cause the flow or functions according to embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website site, computer, server, or data center to another website site, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL), or wireless (e.g., infrared, wireless, microwave, etc.)). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that includes one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. A control method of a magnetic flotation column of a forced ore discharging device with an adjustable coil height is characterized by comprising the following steps:
the first step, sorting: (1) and (3) feeding and recovering: the selected material with pressure enters a column body of the flotation column directly through a feeding distribution box or through a self-suction type micro-bubble generator, wherein the material easy to float mineralizes in the column body, floats to the upper part of the flotation column and is collected by a foam collecting device for recycling, then a concentrate product is discharged, and the rest material descends in the column body;
(2) reverse collision mineralization recovery of a flotation column: the residual materials are mineralized with the floating bubbles in the downward moving process in the column body, particles with good floatability are adhered to the bubbles to form mineralized bubbles, and the mineralized bubbles float to the upper part of the column body and are trapped by a foam trapping device and are recovered; the reverse collision mineralization recovery section is provided with a variable resistance static medium plate, so that a variable resistance three-dimensional medium plate is formed in the column body, mineralized bubbles form S-shaped streaming which develops along the axial direction in the rising process and reversely collide and mineralize with the bubbles rising from the bottom of the flotation column, the mineralized bubbles form a foam layer on the upper part of the flotation column body after passing through the variable resistance static medium plate, the foam layer is trapped and recovered by the foam, a concentrate product is discharged, poor particles fall off from the bubbles in the rising process, and the flotation selectivity is increased;
(3) and (3) heavy floating recycling: the residual materials after being reversely collided, mineralized and recovered by the flotation column enter a cyclone device, the materials comprise low-density middlings and high-density tailings, the middlings are used as circulating media, the middlings are pumped to a self-suction type microbubble generator through a circulating pressurization pump, the middlings with pressure enter the cyclone device tangentially, the middlings circulate in the cyclone device to form a cyclone force field, the tailings fall from the side wall of the cyclone device to be discharged, optional materials in the middlings rise into the flotation column to be combined with bubbles to mineralize bubbles to float to the upper part of the column body, and concentrate products are discharged after being recovered by a foam collecting device;
secondly, flotation monitoring: 1) acquiring the resolution of a flotation video to be displayed;
2) acquiring a video enhancement mode corresponding to the resolution of the flotation video to be displayed according to the corresponding relation between different resolutions and the flotation video enhancement mode;
3) enhancing the flotation video to be displayed in a flotation video enhancement mode;
4) if the resolution is the first resolution, acquiring a mode for reducing noise of the flotation video to be displayed as a flotation video enhancement mode;
if the resolution is a second resolution, acquiring a mode of performing contrast enhancement and saturation enhancement on the flotation video to be displayed as a flotation video enhancement mode, wherein the second resolution is greater than the first resolution;
the first resolution is the resolution corresponding to standard definition and smooth flotation video;
the second resolution is a high-definition flotation video and a resolution corresponding to the high-definition flotation video;
5) judging whether the resolution is smaller than a preset resolution or not;
if so, acquiring a mode for reducing noise of the flotation video to be displayed as a flotation video enhancement mode;
if not, acquiring a mode of performing contrast enhancement and saturation enhancement on the flotation video to be displayed as a flotation video enhancement mode;
6) performing enhancement processing on the flotation video to be displayed in a mode of reducing noise of the flotation video to be displayed;
the method for enhancing the flotation video to be displayed in a mode of reducing noise of the flotation video to be displayed comprises the following steps:
acquiring an edge part in a flotation video frame of the flotation video to be displayed in an edge detection mode;
cropping the flotation video frame into a first portion and a second portion, the first portion being the edge portion and the second portion being a portion other than the edge portion;
denoising the second part in a denoising mode;
combining the first part and the denoised second part into an image to serve as the flotation video frame after the flotation video frame is enhanced;
the method for reducing the noise of the flotation video to be displayed further comprises the following steps:
edge smoothing and saturation reduction.
2. The method for controlling a magnetic flotation column of a forced ore discharging device with an adjustable coil height as claimed in claim 1, wherein in the first step of separation, the mineral separation is carried out by reversely colliding micro bubbles with the fed ore pulp through a separation system; then, recovering the clean coal particles which are not separated in the flotation section through a recovery system; the high ash material entrained in the ore is cleaned by a flushing system.
3. The method for controlling a magnetic flotation column of a forced ore discharging device with an adjustable coil height as claimed in claim 1, wherein in the second step of performing flotation monitoring, the flotation video monitored by the magnetic flotation column is enhanced by a video enhancement system.
4. The method for controlling the magnetic flotation column of the forced ore discharging device with the adjustable coil height according to claim 1, is characterized in that the following steps are carried out before the first step of separation:
monitoring the flotation process of the magnetic flotation column by using a video monitoring system and a camera;
the main control system utilizes the inflation equipment to inflate air into the magnetic flotation columns through the inflation system;
the micro-bubble generation system utilizes the micro-bubble generator to pressurize and spray the circulating ore pulp to suck air, mix foaming agent and crush bubbles, and release and separate out a large amount of micro-bubbles through pressure.
5. The method for controlling the magnetic flotation column of the forced ore discharging device with the adjustable coil height according to claim 1, is characterized in that the second step is followed by: and displaying the video of the flotation process of the magnetic flotation column by using a display through a display system.
6. A control system of a magnetic separation column of the adjustable coil height belt forced ore discharging device for implementing the control method of the magnetic separation column of the adjustable coil height belt forced ore discharging device according to any one of claims 1 to 5, wherein the control system of the magnetic separation column of the adjustable coil height belt forced ore discharging device comprises:
the video monitoring system is connected with the main control system and is used for monitoring the flotation process of the magnetic flotation column through the camera;
the main control system is connected with the video monitoring system, the inflation system, the microbubble generation system, the sorting system, the recovery system, the flushing system, the coil adjusting system, the video enhancement system and the display system and is used for controlling each system to normally work through the main control computer;
the air charging system is connected with the master control system and is used for charging air into the magnetic flotation columns through air charging equipment;
the microbubble generation system is connected with the main control system and used for pressurizing, spraying and sucking air, mixing a foaming agent and crushing bubbles into circulating ore pulp through the microbubble generator and releasing and separating out a large number of microbubbles through pressure;
the separation system is connected with the main control system and is used for carrying out reverse collision mineralization separation on the fed ore pulp through the micro bubbles;
the recovery system is connected with the main control system and is used for recovering the cleaned coal particles which are not separated in the flotation section;
the flushing system is connected with the main control system and is used for cleaning high ash materials carried in the ores;
the coil adjusting system is connected with the main control system and used for adjusting the height of the magnetic floating column coil;
the video enhancement system is connected with the main control system and is used for enhancing the flotation video monitored by the magnetic flotation column;
and the display system is connected with the main control system and is used for displaying the video of the flotation process of the magnetic flotation column through a display.
7. A magnetic separation column of the magnetic separation column with the adjustable coil height and the forced ore discharging device for implementing the control method of the magnetic separation column with the adjustable coil height and the forced ore discharging device according to any one of claims 1 to 5, wherein the magnetic separation column comprises:
the support frame is a steel structure support formed by welding steel pipes and is supported on the foundation;
the supporting plates are composed of locking pieces fixedly connected to the supporting frame and plate-shaped bodies supported on the locking pieces and provided with holes in the centers, the supporting plates are four groups, one group of the supporting plates is fixedly connected to the lower portion of the supporting frame, and the other three groups of the supporting plates are respectively positioned on the middle upper portion of the supporting frame;
the top of the device is a cylinder with a connecting flange, the middle part of the device is a cone connected with the lower part of the cylinder into a whole, the cone is supported in a central hole of a supporting plate fixedly connected with the lower part of the supporting frame, and the lower part of the device is a cylinder connected with the lower part of the cone and provided with a discharge valve;
the separation column is positioned in the central holes of the three groups of support plates at the middle upper part of the support frame, and is a cylinder body made of a non-magnetic material, and the bottom of the cylinder body is provided with a connecting flange which is fixedly connected with the connecting flange at the top of the ore discharging device through bolts;
the overflow groove is a cylinder with an inclined bottom, the bottom of the overflow groove is fixedly connected to the outer side of the upper part of the separation column, an ore discharge pipe is arranged at the lower part of the bottom of the overflow groove, and the overflow groove is made of glass fiber reinforced plastic;
the magnetic system is provided with three groups of annular electromagnetic coil windings which are sleeved outside the middle upper part of the sorting column, and each group of annular electromagnetic coil windings are fixedly arranged on three groups of supporting discs on the middle upper part of the supporting frame respectively;
an air flow meter. The flowmeter is fixedly arranged on the outer side of the upper part of the support frame through a connecting rod and a locking piece, the lower part of the flowmeter is connected with a valve and an inflation tube, the other end of the inflation tube is arranged in a conical body in the middle of the ore discharging device, and the upper part of the inflation tube is provided with an air inlet;
the air disperser is a cylinder with a top sealed at the upper part, is made of microporous materials, is arranged in the lower part of the separation column, and the lower part of the air disperser is fixedly connected with an inflation pipe in a conical body arranged in the middle of the ore discharge device;
the ascending water flow device comprises an ascending water flow pipe fixedly connected to one side of a conical body in the middle of the ore discharging device and provided with a valve, and an ascending water flow annular pipe communicated with the ascending water flow pipe, wherein water spray holes are uniformly distributed in the side surface of an inner ring of the ascending water flow annular pipe, and the ascending water flow annular pipe is arranged in the lower part of the separation column and sleeved outside the air disperser.
8. A magnetic levitation column as recited in claim 7, wherein said magnetic levitation column further comprises: the ore feeding pipe is made of non-magnetic conductive materials, is fixedly arranged at the upper part of the supporting frame through a connecting rod and a locking piece, is arranged in the upper part of the separation column and can be adjusted up and down.
9. An information data processing terminal for realizing the control method of the magnetic flotation column with the adjustable coil height and the forced ore discharging device according to any one of claims 1 to 5.
10. A computer-readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the method of controlling a magnetic flotation column of an adjustable coil height belt forced discharge apparatus as claimed in any one of claims 1 to 5.
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| CN201911411912.7A CN110918270A (en) | 2019-12-31 | 2019-12-31 | Magnetic flotation column with coil height adjustable and forced ore discharge device and control method |
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