CN110302890B - Chute sorting machine and method based on image acquisition, storage medium and electronic equipment - Google Patents
Chute sorting machine and method based on image acquisition, storage medium and electronic equipment Download PDFInfo
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- CN110302890B CN110302890B CN201910593841.0A CN201910593841A CN110302890B CN 110302890 B CN110302890 B CN 110302890B CN 201910593841 A CN201910593841 A CN 201910593841A CN 110302890 B CN110302890 B CN 110302890B
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
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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
- 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
- B03B13/04—Control arrangements specially adapted for wet-separating apparatus or for dressing plant, using physical effects using electrical or electromagnetic effects
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
- B03B5/52—Spiral classifiers
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Abstract
The invention relates to the technical field of material sorting, and provides a chute sorting machine based on image acquisition, a method, a storage medium and electronic equipment, wherein the chute sorting machine based on image acquisition comprises a spiral chute, a magnetic system and an image acquisition part; the spiral chute comprises a feed inlet for feeding and a discharge outlet for discharging; the magnetic system is arranged adjacent to the spiral chute, the magnetic field intensity of the magnetic system acting on the spiral chute is gradually weakened from the inner side of the spiral chute to the outer side of the spiral chute, and the magnetic field intensity of the magnetic system acting on the spiral chute is adjustably arranged; the image acquisition part is used for acquiring the material belt distribution image information of the discharge hole. The chute sorter based on image acquisition can improve sorting quality through the arrangement of the magnetic system, and the arrangement of the image acquisition part can also adjust the intensity of the magnetic field of the magnetic system.
Description
Technical Field
The disclosure relates to the technical field of material sorting, in particular to a chute sorting machine and method based on image acquisition, a storage medium and electronic equipment.
Background
Spiral chute is a kind of flow membrane separation equipment, and concentrating mills are commonly used to separate fine metal ores. The flow field of the cross section of the spiral chute is provided with a circulating flow with an outward upper layer and an inward bottom layer, and the flow field of the selected metal ore particles in the equipment is mainly acted by gravity, buoyancy, centrifugal force, friction force, fluid resistance and supporting force of the wall surface of the equipment. It is generally considered that the feed particles are first subjected to longitudinal layering, in which process coarse and heavy particles tend to be distributed in the lower layer, while light and fine particles are mainly distributed in the upper layer; in the process of spiral movement downwards along the groove surface, the friction force between the light fine particles and the groove surface is small, and fluid flowing inwards is brought to the inner side of the cross section of the spiral chute; the friction force between the coarse and heavy particles and the groove surface is large and is mainly distributed on the outer side, so that all the feeding particles gradually realize zonal distribution in the process of flowing along the spiral chute groove surface.
Ideally, the sequence of the band distribution of different feeding particles on the groove surface is as follows (from inside to outside): high density fine particles, high density coarse particles, low density fine particles, low density coarse particles, and fine mud at the outermost side. However, in practical separation, the main problems of spiral chute separation are that high-density fine particles are easy to mix into middlings and tailings, so that fine-fraction concentrate is lost, and low-density coarse particles are easy to mix into concentrate, so that the overall granularity of concentrate products is larger, and the grade is reduced.
Disclosure of Invention
A main object of the present disclosure is to overcome the above-mentioned problem of poor spiral chute sorting effect in the prior art, and to provide a chute sorting machine, a method, a storage medium and an electronic device based on image acquisition.
According to a first aspect of the present invention there is provided an image acquisition based chute separator comprising:
the spiral chute comprises a feed inlet for feeding and a discharge outlet for discharging;
the magnetic system is arranged adjacent to the spiral chute, the magnetic field intensity of the magnetic system acting on the spiral chute is gradually weakened from the inner side of the spiral chute to the outer side of the spiral chute, and the magnetic field intensity of the magnetic system acting on the spiral chute is adjustably arranged;
and the image acquisition part is used for acquiring the material belt distribution image information of the discharge hole.
In one embodiment of the invention, the magnetic system is an electromagnet, the electromagnet comprises an iron core and a coil wound on the iron core, and the chute separator based on image acquisition further comprises:
and the control system is connected with the image acquisition part and the coil, so as to receive the material belt distribution image information acquired by the image acquisition part and adjust the current input into the coil according to the material belt distribution image information.
In one embodiment of the invention, a control system includes:
the control end is connected with the image acquisition part to receive and analyze the distribution image information of the material belt;
the control end of the excitation current controller is connected with the excitation current controller, and the excitation current controller is connected with the coil;
the control end analyzes the material belt distribution image information to send out an action signal, and the excitation current controller receives the action signal and adjusts the current of the input coil according to the action signal.
In one embodiment of the invention, the image acquisition-based chute separator further comprises a feed system comprising:
the feeding pump is used for being communicated with the feeding pool;
the frequency converter is connected with the feed pump;
one end of the feeding assembly is communicated with the feeding pump, and the other end of the feeding assembly is communicated with the feeding port, so that the feeding pump can feed materials to be sorted in the feeding pool into the spiral chute through the feeding assembly;
wherein, control system is connected with the converter.
In one embodiment of the invention, a feed assembly includes:
the feeding end of the feeder is positioned above the feeding port;
one end of the feeding pipe is communicated with the feeding pump, and the other end of the feeding pipe is communicated with the feeder;
The feeding pipe is provided with a flowmeter, and the flowmeter is connected with the control system to convey flow information to the control system.
In one embodiment of the invention, the image acquisition based chute separator further comprises:
the material cutting device is connected with the discharge port, a plurality of material pipes are arranged on the material cutting device, and the plurality of material pipes and the discharge port can be arranged on-off;
and the light supplementing lamp is at least partially positioned above the discharge hole and used for providing a light source for the discharge hole.
In one embodiment of the present invention, at least part of the magnetic system is an electromagnet, the electromagnet comprising:
an iron core;
a coil wound around the iron core for receiving a current;
the width of one end of the iron core, which is close to the inner side of the spiral chute, is smaller than the width of the other end of the iron core, which is close to the outer side of the spiral chute, so that the magnetic field intensity of the electromagnet acting on the spiral chute is gradually weakened from the inner side of the spiral chute to the outer side of the spiral chute.
In one embodiment of the present invention, the core includes:
the main body section is positioned below the spiral chute part, and the coil is wound on the main body section;
The first bending section is connected with one end of the main body section and is positioned at the inner side of the spiral chute.
In one embodiment of the present invention, the core further includes:
the second bending section is connected with the other end of the main body section, which is far away from the first bending section, and is positioned at the outer side of the spiral chute;
the width of one end of the main body section connected with the first bending section is smaller than that of the other end of the main body section connected with the second bending section.
In one embodiment of the present invention, the magnetic system is a plurality of, the chute separator based on image acquisition further comprises:
the support comprises a support frame and a support rod arranged in the middle of the support frame, and the spiral chute is arranged around the support rod;
wherein, a plurality of magnetic systems are arranged on the supporting rod at intervals.
In one embodiment of the invention, the image acquisition based chute separator further comprises:
the stop part is arranged in the spiral chute and is used for being in contact with materials to be sorted, which move along the spiral chute.
In one embodiment of the invention, the image acquisition based chute separator further comprises:
the flushing pipe is arranged on the spiral chute and used for feeding water flow to the materials to be sorted on the spiral chute.
According to a second aspect of the present invention there is provided a chute sorting method comprising:
acquiring distribution image information of a material belt on a spiral chute;
receiving and analyzing the distribution image information of the material belt so as to adjust the intensity of a magnetic field acted on the spiral chute by the magnetic system and/or adjust the speed of feeding the material to be sorted into the spiral chute;
wherein the magnetic field intensity of the magnetic system acting on the spiral chute is gradually weakened from the inner side of the spiral chute to the outer side of the spiral chute.
In one embodiment of the invention, a specific method for analyzing web distribution image information includes:
determining distribution positions of a first material belt, a second material belt and a third material belt in the material belt distribution image information;
comparing the position information of the first material belt, the second material belt and the third material belt with preset position information;
when the position information is inconsistent with the preset position information, the intensity of the magnetic field of the magnetic system acting on the spiral chute is regulated, and/or the speed of feeding the materials to be sorted into the spiral chute is regulated.
According to a third aspect of the present invention there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the chute sorting method described above.
According to a fourth aspect of the present invention, there is provided an electronic device comprising:
a processor; and
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the chute sorting method described above via execution of the executable instructions.
According to the chute sorting machine based on image acquisition, the distribution condition of materials to be sorted when the materials arrive at the discharge port can be determined by acquiring the material belt distribution image information of the discharge port through the image acquisition part, so that the distribution condition can be analyzed, and then the sorting effect is confirmed according to the sorting result. The magnetic field intensity of the magnetic system acting on the spiral chute directly influences the sorting effect, so that the magnetic field intensity of the magnetic system acting on the spiral chute can be correspondingly regulated according to the material belt distribution image information, the sorting effect is guaranteed to reach the optimal state, the magnetic field intensity can be reasonably utilized, and the electric power is not wasted. When the materials to be sorted pass through a magnetic field area formed by a magnetic system, the magnetic or weak magnetic particles are subjected to the overall inward magnetic force, so that the distribution area of the magnetic or weak magnetic particles is closer to the inner side of the spiral chute, the banding distribution trend of the magnetic or weak magnetic particles and gangue particles along the groove surface of the spiral chute is enhanced, and the recovery rate of the magnetic or weak magnetic particles in the concentrate is improved.
Drawings
The various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of the preferred embodiments thereof, taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the present disclosure and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. Wherein:
FIG. 1 is a schematic diagram of a chute classifier based on image acquisition, shown in accordance with an exemplary embodiment;
FIG. 2 is a schematic view of a magnetic system configuration of an image acquisition-based chute separator according to an exemplary first embodiment;
FIG. 3 is a schematic view of a magnetic architecture of an image acquisition-based chute separator according to a second exemplary embodiment;
FIG. 4 schematically illustrates a computer-readable storage medium in an exemplary embodiment of the present disclosure;
fig. 5 schematically illustrates a schematic diagram of an electronic device in an exemplary embodiment of the present disclosure.
The reference numerals are explained as follows:
10. a spiral chute; 11. a spiral chute bottom surface; 12. the inner side surface of the spiral chute; 13. the outer side surface of the spiral chute; 14. a feed inlet; 15. a discharge port; 20. a magnetic system; 21. an iron core; 211. a main body section; 212. a first bending section; 213. a second bending section; 22. a coil; 30. a bracket; 31. a support frame; 32. a support rod; 40. a stop portion; 50. a water flushing pipe; 60. an image acquisition unit; 61. cutting a feeder; 611. a material pipe; 62. a light supplementing lamp; 70. a control system; 71. a control end; 72. an excitation current controller; 80. a feeding system; 81. a feed pump; 82. a frequency converter; 83. a feeding assembly; 84. a feeder; 85. a feeding pipe; 86. a flow meter; 90. a feed tank;
300. A program product; 600. an electronic device; 610. a processing unit; 620. a storage unit; 6201. a random access memory unit (RAM); 6202. a cache storage unit; 6203. a read only memory unit (ROM); 6204. program/utility; 6205. a program module; 630. a bus; 640. a display unit; 650. an input/output (I/O) interface; 660. a network adapter; 700. an external device.
Detailed Description
Exemplary embodiments that embody features and advantages of the present disclosure are described in detail in the following description. It will be understood that the present disclosure is capable of various modifications in the various embodiments, all without departing from the scope of the present disclosure, and that the description and drawings are intended to be illustrative in nature and not to be limiting of the present disclosure.
In the following description of various exemplary embodiments of the present disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems and steps in which aspects of the disclosure may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be used and structural and functional modifications may be made without departing from the scope of the present disclosure. Moreover, although the terms "over," "between," "within," and the like may be used in this specification to describe various example features and elements of the disclosure, these terms are used herein for convenience only, e.g., in accordance with the directions of examples in the drawings. Nothing in this specification should be construed as requiring a particular three-dimensional orientation of structures to fall within the scope of this disclosure.
An embodiment of the present invention provides an image-acquisition-based chute separator, referring to fig. 1 to 3, the image-acquisition-based chute separator includes: a spiral chute 10, the spiral chute 10 comprising a feed inlet 14 for feeding and a discharge outlet 15 for discharging; the magnetic system 20 is arranged adjacent to the spiral chute 10, the magnetic field intensity of the magnetic system 20 acting on the spiral chute 10 is gradually weakened from the inner side of the spiral chute 10 to the outer side of the spiral chute 10, and the magnetic field intensity of the magnetic system 20 acting on the spiral chute 10 is adjustably arranged; the image acquisition unit 60, the image acquisition unit 60 is used for obtaining the material belt distribution image information of the discharge port 15.
According to the chute sorting machine based on image acquisition, the distribution condition of materials to be sorted when the materials arrive at the discharge port 15 can be determined by acquiring the material belt distribution image information of the discharge port 15 through the image acquisition part 60, so that the distribution condition can be analyzed, the sorting effect is confirmed according to the sorting result, the magnetic field intensity of the magnetic system 20 acting on the spiral chute 10 directly influences the sorting effect, so that the magnetic field intensity of the magnetic system 20 acting on the spiral chute 10 can be correspondingly regulated according to the material belt distribution image information, the best sorting effect is ensured, the magnetic field intensity can be reasonably utilized, and electric power is not wasted. The chute sorting machine based on image acquisition according to the embodiment of the invention can improve sorting quality through the arrangement of the magnetic system 20, and the arrangement of the image acquisition part 60 can also adjust the intensity of the magnetic field of the magnetic system 20.
In one embodiment, by applying the magnetic system 20 in the spiral chute 10, i.e. when the material to be sorted is moved and sorted along the extending direction of the spiral chute 10, the magnetic force generated by the magnetic system 20 acts on the material to be sorted located in the spiral chute 10, and the magnetic field strength of the magnetic system 20 acting on the spiral chute 10 is gradually weakened from the inner side of the spiral chute 10 to the outer side of the spiral chute 10, i.e. when the material to be sorted passes through the magnetic field area formed by the magnetic system 20, the magnetic or weak magnetic particles are subjected to the magnetic force in the whole, so that the distribution area of the magnetic or weak magnetic particles is closer to the inner side of the spiral chute 10, the zonal distribution trend of the magnetic or weak magnetic particles and gangue particles along the groove surface of the spiral chute 10 is enhanced, the recovery rate of the magnetic or weak magnetic particles in concentrate is improved, and the problem of poor spiral chute sorting effect in the prior art is solved.
For the specific selection of the magnetic system 20, the magnetic system 20 is an electromagnet, the electromagnet comprises an iron core 21 and a coil 22 wound on the iron core 21, and the chute separator based on image acquisition further comprises: the control system 70, the control system 70 is connected with the image acquisition part 60 and the coil 22, so as to receive the material belt distribution image information acquired by the image acquisition part 60, and adjust the current input into the coil 22 according to the material belt distribution image information.
In one embodiment, by connecting the control system 70 to both the image acquisition section 60 and the coil 22, i.e., the control system 70 has the function of receiving information of the analysis strip distribution image, and the magnitude of the current input to the coil 22 can also be adjusted by the specific analysis result.
For a specific composition of the control system 70, as shown in fig. 1, the control system 70 includes: the control end 71, the control end 71 is connected with the image acquisition part 60, in order to receive and analyze the material belt distribution image information; an excitation current controller 72, the control terminal 71 is connected to the excitation current controller 72, and the excitation current controller 72 is connected to the coil 22; the control end 71 analyzes the belt distribution image information to send out an action signal, and the exciting current controller 72 receives the action signal and adjusts the current level of the input coil 22 according to the action signal.
In one embodiment, the control system 70 is comprised of a control terminal 71 and an excitation current controller 72, the control system 70 is configured to receive and analyze the web profile image information, and then transmit the analyzed result to the excitation current controller 72, and the excitation current controller 72 may adjust the magnitude of the current input to the coil 22 according to the analysis result. If the separation unit is complete, the current may be appropriately increased, but the separation effect is preferably reduced, so that the power consumption is reduced.
Considering the practical application of the chute separator based on image acquisition, as shown in fig. 1, the chute separator based on image acquisition further includes a feeding system 80, and the feeding system 80 includes: a feed pump 81, the feed pump 81 being adapted to communicate with the feed tank 90; the frequency converter 82, the frequency converter 82 is connected with the feed pump 81; the feeding assembly 83, one end of the feeding assembly 83 is communicated with the feeding pump 81, and the other end of the feeding assembly 83 is communicated with the feeding port 14, so that the feeding pump 81 can feed the materials to be sorted in the feeding pool 90 into the spiral chute 10 through the feeding assembly 83; wherein the control system 70 is connected to a frequency converter 82.
In one embodiment, the feeding rate of the feeding system 80 also affects the sorting effect, and the control system 70 is connected to the frequency converter 82 of the feeding system 80 to adjust the feeding rate of the feeding system 80 accordingly according to the direction result obtained by the belt distribution image information.
In one embodiment, the frequency converter 82 directly controls the efficiency of the feed pump 81 to extract the material to be sorted from the feed tank 90 and the amount of feed to the spiral chute 10, so that the frequency converter 82 needs to be regulated by the control system 70 to achieve regulation control of the feed rate.
With respect to the specific structure of the feeding assembly 83, as shown in fig. 1, the feeding assembly 83 includes: a feeder 84, the feeding end of the feeder 84 being located above the feed inlet 14; a feeding pipe 85, wherein one end of the feeding pipe 85 is communicated with a feeding pump 81, and the other end of the feeding pipe 85 is communicated with a feeder 84; wherein, the feeding pipe 85 is provided with a flowmeter 86, and the flowmeter 86 is connected with the control system 70 to convey flow information to the control system 70.
In one embodiment, the feed assembly 83 is comprised of a feeder 84 and a feed tube 85, with the feed tube 85 being used to feed material to be sorted from the feed pump 81 to the feeder 84 and then through the feeder 84 to the spiral chute 10.
In one embodiment, the primary purpose of the flow meter 86 in connection with the control system 70 is to allow the controller to obtain the feed rate in real time and then adjust the magnetic field strength and feed rate after sorting the web profile information to ensure optimal sorting.
In one embodiment, the image acquisition based chute separator further comprises: the material cutting device 61, the material cutting device 61 is connected with the discharge port 15, the material cutting device 61 is provided with a plurality of material pipes 611, and the plurality of material pipes 611 and the discharge port 15 can be arranged on-off; and a light supplementing lamp 62, at least part of the light supplementing lamp 62 is located above the discharge hole 15, so as to provide a light source for the discharge hole 15. The cutter 61 is mainly used for feeding different material strips after sorting to specific receiving positions, and the light supplementing lamp 62 mainly ensures that the image acquisition part 60 has enough light sources when acquiring images.
In one embodiment, the number of the material pipes 611 is 3, the concentrate pipes, the middling pipes and the tailing pipes are sequentially arranged along the inner side of the spiral chute 10 and the outer side of the spiral chute 10, after zoning distribution is completed along the chute surface, the materials to be separated are discharged from the discharge hole 15 at the tail end of the spiral chute 10, and different ore zones are respectively discharged from the concentrate pipes, the middling pipes and the tailing pipes by adjusting the ore distributing valves in the cutter 61.
In one embodiment, the portion of the spiral chute 10 represents a portion of the trough section of the spiral chute 10, i.e., it is contemplated that the spiral chute 10 extends in a generally spiral fashion, and a magnetic system 20 may be positioned below a section of the spiral chute 10, i.e., it is understood that the magnetic system 20 is positioned between the ends of the spiral chute 10.
In one embodiment, the spiral chute 10 includes a feed inlet 14 for feeding and a discharge outlet 15, i.e., the magnetic system 20 is located between the feed inlet 14 and the discharge outlet 15, which creates a magnetic field region between the feed inlet 14 and the discharge outlet 15.
Regarding the positional relationship between the spiral chute 10 and the magnetic system 20, the extending direction of at least part of the magnetic system 20 coincides with the extending direction of the inner side of the spiral chute 10 to the outer side of the spiral chute 10. The position of the magnetic system 20 is in the width direction across the spiral chute 10, that is, the extending direction coincides with the width direction of the spiral chute 10, the inner side of the spiral chute 10 and the outer side of the spiral chute 10 are mainly relative to the surrounding central position of the spiral chute 10, the inner side of the spiral chute 10 near the surrounding central position of the spiral chute 10, and the outer side of the spiral chute 10 far from the surrounding central position of the spiral chute 10.
For the groove surface composition of the spiral chute 10, as shown in fig. 2 and 3, the inner surface of the spiral chute 10 comprises a spiral chute bottom surface 11, and a spiral chute inner side surface 12 and a spiral chute outer side surface 13 connected to both ends of the spiral chute bottom surface 11; wherein the projection of the portion of the spiral chute inner side surface 12 onto the magnetic system 20 located therebelow is located inside the magnetic system 20.
In one embodiment, the trough surface of the spiral chute 10, i.e. the inner surface of the spiral chute 10, is composed of a spiral chute bottom surface 11 and a spiral chute inner side surface 12 and a spiral chute outer side surface 13 connected to both ends of the spiral chute bottom surface 11, wherein the spiral chute inner side surface 12 is a side surface close to the inner side of the spiral chute 10, and the spiral chute outer side surface 13 is a side surface close to the outer side of the spiral chute 10. In order to be able to ensure that the spiral chute inner side 12 is located in the magnetic field region, the projection of the portion of the spiral chute inner side 12 onto the magnetic system 20 located therebelow is located inside the magnetic system 20, i.e. the direction of extension of one end of the magnetic system 20 across the spiral chute inner side 12, can be interpreted as one end of the magnetic system 20 being closer to the center position where the spiral chute 10 is surrounded than the center position where the spiral chute inner side 12 is surrounded by the spiral chute 10.
In one embodiment, since the magnet system 20 is disposed only opposite a portion of the spiral chute 10, the projection of a portion of the spiral chute inner side 12 onto the magnet system 20 below it is located inside the magnet system 20. If one of the magnet systems 20 is located, from an overall construction point of view, below one section of the spiral chute 10, and above the other section, only the bottom surface of the spiral chute 10 is considered for the action between the magnet systems 20.
Optionally, the projection of the portion of the spiral chute outer side 13 onto the magnet system 20 located therebelow is located inside the magnet system 20. Along a certain straight line direction, when two ends of the magnetic system 20 are respectively located at the outer sides of the inner side surface 12 and the outer side surface 13 of the spiral chute, a certain section of the chute surface of the spiral chute 10 is located in a magnetic field area formed by the magnetic system 20, so that magnetic or weak magnetic particles are subjected to overall inward magnetic force, and the distribution area of the magnetic or weak magnetic particles is closer to the inner side of the spiral chute 10.
As shown in fig. 2 and 3, regarding the specific structure of the magnetic system 20, at least part of the magnetic system 20 extends in the same direction as the direction in which the inside of the spiral chute 10 extends toward the outside of the spiral chute 10, the magnetic system 20 is an electromagnet, and the electromagnet includes: a core 21; a coil 22, the coil 22 being wound on the iron core 21 for receiving a current; wherein the width of one end of the iron core 21 near the inner side of the spiral chute 10 is smaller than the width of the other end of the iron core 21 near the outer side of the spiral chute 10, so that the magnetic field intensity of the electromagnet acting on the spiral chute 10 is gradually weakened from the inner side of the spiral chute 10 to the outer side of the spiral chute 10.
In one embodiment, the magnetic system 20 is an electromagnet, i.e. the magnetic field force generated by the magnetic system 20 is controlled by an external current, so that the magnetic field strength of the electromagnet acting on the spiral chute 10 is gradually reduced from the inner side of the spiral chute 10 to the outer side of the spiral chute 10, and therefore the width of one end of the iron core 21 near the inner side of the spiral chute 10 is smaller than the width of the other end of the iron core 21 near the outer side of the spiral chute 10, and the magnetic field density of one end of the iron core 21 near the inner side of the spiral chute 10 is relatively larger, so that the magnetic or weak magnetic particles are subjected to the overall inward magnetic force.
In one embodiment, the width of the core 21 gradually expands from one end near the inside of the spiral chute 10 to the other end near the outside of the spiral chute 10. The projection of the core 21 onto the horizontal plane forms a plane resembling a sector, i.e. the width of the two end faces is not uniform.
As shown in fig. 1 and 2, for a specific structural form of the core 21, the core 21 includes: a main body section 211, the main body section 211 being located below a portion of the spiral chute 10, the coil 22 being wound on the main body section 211; the first bending section 212, the first bending section 212 is connected with one end of the main body section 211, and the first bending section 212 is located at the inner side of the spiral chute 10.
In one embodiment, the iron core 21 is composed of a main body section 211 and a first bending section 212, wherein the main body section 211 is used for winding the coil 22 and is located below a portion of the spiral chute 10, and the first bending section 212 is located at the inner side of the spiral chute 10, that is, opposite to the side surface of the spiral chute 10, and at this time, one side of the iron core 21 is bent in one direction.
In one embodiment, the first bending section 212 is a first L-shaped section, and a first U-shaped cavity is formed between the first bending section 212 and the main body section 211; wherein the end of the first bending section 212 is disposed opposite the spiral chute 10.
Further, as shown in fig. 2, the core 21 further includes: the second bending section 213, the second bending section 213 is connected with the other end of the main body section 211 away from the first bending section 212, and the second bending section 213 is located at the outer side of the spiral chute 10; wherein the width of the end of the main body section 211 connected with the first bending section 212 is smaller than the width of the other end of the main body section 211 connected with the second bending section 213.
In one embodiment, the core 21 is composed of a first bending section 212, a main body section 211, and a second bending section 213, and the first bending section 212 and the second bending section 213 are located at two ends of the main body section 211, respectively.
In one embodiment, the first bending section 212 is disposed opposite to the second bending section 213, the second bending section 213 is a second L-shaped section, and a second U-shaped cavity is formed between the second bending section 213 and the main body section 211; wherein the end of the second bending section 213 is arranged opposite the spiral chute 10.
For the first embodiment of the iron core 21, as shown in fig. 2, the top view of the iron core 21 is in a sector shape, both the left and right ends of the iron core 21 are bent upward, the left end is narrow, the right end is wide, the magnetic induction line is directed from the left end to the right end (or the right end is directed to the left end, depending on the coil winding direction), and the magnetic induction line density near the slot face of the spiral chute 10 near the left end is greater than the magnetic induction line density near the slot face of the spiral chute 10 near the right end. The magnetic particles are subjected to a leftward magnetic field force during the downward flow along the spiral chute groove, so that the magnetic particles tend to be distributed towards the inner side of the spiral chute 10 more easily, and are separated from the non-magnetic particles.
For the second embodiment of the core 21, as shown in fig. 3, only the left end of the core 21 is bent upward, and the top view is also fan-shaped, the left end of the core cross section is small and the right end is large, which generates magnetic induction lines and affects the movement of magnetic particles similarly to the electromagnet shown in fig. 2.
The force of the magnetic particles in the magnetic field can be calculated as follows:
f m ＝μ 0 VKHgradH
μ 0 vacuum permeability, H/m; v is the particle volume, m 3 The method comprises the steps of carrying out a first treatment on the surface of the K is the particle magnetic susceptibility; h is the background magnetic field intensity of the particles, A/m; grad H is the spatial magnetic field gradient.
In one embodiment, the magnetic lines of force of the magnetic system 20 have a predetermined angle with the trough surface of the spiral chute 10, the predetermined angle is an acute angle, and the magnetic lines of force are inclined upward relative to the trough surface of the spiral chute 10. The magnetic system 20 forms an upward magnetic field force relative to the trough surface of the spiral chute 10, i.e. it can provide an upward force to the material to be sorted, so that the friction between the material to be sorted and the trough surface of the spiral chute 10 can be reduced, and the sorting effect can be improved to a certain extent, wherein the preset included angle can be selected to be between 0 and 25 degrees.
In one embodiment, the magnetic system 20 is a plurality, and the chute separator based on image acquisition further comprises: the support 30, the support 30 includes supporting the frame 31 and setting up the support bar 32 in the middle part of the supporting frame 31, the spiral chute 10 is set up around the support bar 32; wherein a plurality of magnet systems 20 are disposed on the support bar 32 at intervals. By arranging a plurality of magnet systems 20 on the support bar 32 at intervals, i.e. a plurality of magnet systems 20 can each generate a magnetic field area at different positions, the whole sorting process can be optimized.
In one embodiment, the position of the support bar 32 may be understood as the center position of the spiral chute 10, and the magnetic system 20 is disposed on the support bar 32, and the magnetic field lines generated by the magnetic system 20 may be considered as a circular radial line in a certain space.
In one embodiment, the image acquisition based chute separator further comprises: a stopper 40, the stopper 40 is provided inside the spiral chute 10 for contacting the material to be sorted moving along the spiral chute 10. When the material to be sorted encounters the stop part 40 in the process of moving along the groove surface of the spiral chute 10, a magnetic group formed by the action of a magnetic field in the material to be sorted is loosened under the turbulence vortex formed by the stop part 40 and the falling action from the surface of the stop part 40 to the groove surface, and the mingled gangue particles are released and move along the groove surface again, so that zonal distribution is realized, and the pollution of gangue mingling in the magnetic group to concentrate is reduced.
In one embodiment, the inner surface of the spiral chute 10 includes a spiral chute bottom surface 11, and a spiral chute inner side surface 12 and a spiral chute outer side surface 13 connected to both ends of the spiral chute bottom surface 11, and the stopper 40 is a bar-shaped rod connected to the spiral chute inner side surface 12 and the spiral chute outer side surface 13. The stop 40 is located on the spiral chute bottom surface 11 and is connected to both the spiral chute inner side surface 12 and the spiral chute outer side surface 13, i.e. it divides the trough surface of the spiral chute 10, but it does not affect the normal movement of the material to be sorted.
In one embodiment, the bar may be an angular bar, that is, the bar is surrounded by three surfaces, the surface that contacts the material to be sorted is the flow-facing surface, one surface is attached to the bottom surface 11 of the spiral chute, the range of the included angle between the corresponding edge of the flow-facing surface and the bottom surface 11 of the spiral chute is (0, 90), and the other surface is perpendicular to the bottom surface 11 of the spiral chute.
Optionally, the number of the stoppers 40 is plural, and the plural stoppers 40 are provided along the extending direction of the spiral chute 10. Wherein the two stops 40 may be disposed adjacent to each other and may form a 3-angle with the spiral chute 10.
In one embodiment, as shown in fig. 1, the image acquisition-based chute separator further includes: a water flushing pipe 50, the water flushing pipe 50 is arranged on the spiral chute 10 and is used for feeding water flow to the materials to be sorted on the spiral chute 10. The arrangement of the flushing pipe 50 allows the fine mud moving to the inside of the spiral chute 10 during the sorting process to be flushed to the outside, reducing the fine mud content in the concentrate.
Optionally, the inner surface of the spiral chute 10 comprises a spiral chute bottom surface 11, a spiral chute inner side surface 12 and a spiral chute outer side surface 13 which are connected to two ends of the spiral chute bottom surface 11, a water outlet of the water flushing pipe 50 is positioned on the spiral chute inner side surface 12, and the central line of the water outlet is arranged obliquely downwards to the spiral chute bottom surface 11.
Optionally, the flushing pipes 50 are plural, and the plural flushing pipes 50 are arranged along the extending direction of the spiral chute 10.
In one embodiment, the image capturing section 60 may be a camera, the control terminal 71 is a control PC, the solid line in fig. 1 is a material line, the broken line is a monitoring signal line, and the feed pump 81 is a feed screw pump.
For one particular embodiment of the image acquisition based chute separator of the present invention, as shown in fig. 1-3:
the chute separator based on image acquisition is a spiral chute control system of a composite magnetic field, and the system is based on an image analysis technology of machine vision and can intelligently control operation parameters such as feeding rate, electromagnetic coil current and the like according to the distribution condition of a chute surface ore belt.
The excitation current controller 72 can respectively control the excitation currents in different electromagnets, and the control range of the excitation currents is 0A-20A.
During normal separation, the distribution positions of concentrate, middling and tailing on the trough surface are in a reasonable range, the reasonable range is used as a set value for trough surface ore zone control, if the reasonable range is deviated from the range, the relevant operation parameters are adjusted, and the control process of the control system is as follows:
in the sorting process, a camera (an image acquisition part 60) transmits a trough surface ore strip distribution picture of the spiral chute 10 to a control PC (a control end 71) in real time, the control PC quantitatively analyzes the transmitted ore strip distribution picture to obtain accurate positions of ore concentrate, middling and tailings on the trough surface, the accurate positions are compared with a setting range of ore strip distribution, and if the positions of the ore strips are processed in the setting range, the control PC does not send a control signal; conversely, the control PC sends action signals to the frequency converter (frequency converter 82) of the feeding screw pump and the excitation current controller 72 to adjust the feeding speed and the magnetic field intensity; the feeding speed and the magnetic field strength can influence the stress and the movement of the selected magnetic or weakly magnetic particles on the trough surface, so that the distribution condition of the trough surface ore belt is influenced, and the control of the distribution of the trough surface ore belt is realized through the real-time monitoring of the distribution of the trough surface ore belt.
In this embodiment, the particle size of the feed material is in the range of 0mm-3mm, the material to be sorted enters the feeder 84 through the feed pipe 85, and the feeder 84 feeds the material to be sorted to the spiral chute groove surface. The feeding material moves along the groove surface and is longitudinally layered firstly, coarse and heavy particles tend to be distributed on the lower layer in the process, and light and fine particles are mainly distributed on the upper layer; in the process of continuing to make spiral movement downwards along the groove surface, the friction force between the light fine particles and the groove surface is small, and fluid flowing inwards is brought to the inner side of the cross section of the spiral chute; the friction force between the coarse and heavy particles and the groove surface is large and is mainly distributed on the outer side. The excitation current controller 72 is adjusted so that the excitation currents entering the four electromagnetic coils in fig. 1 are 5A, 3A and 5A respectively, and when the feeding material passes through the magnetic field area formed by the electromagnet, the magnetic or weakly magnetic particles are subjected to the overall inward magnetic force, so that the distribution area of the magnetic or weakly magnetic particles is closer to the inner side of the spiral chute, the banding distribution trend of the magnetic or weakly magnetic particles and gangue particles along the chute groove surface is enhanced, and the recovery rate of the magnetic or weakly magnetic fine particles in the concentrate is improved.
In the embodiment, the width of the groove surface of the spiral chute is 400mm, during normal sorting, the inner side surface 12 of the spiral chute is taken as 0 point, the concentrate belt is mainly in the range of (0 mm,150 mm) - (0 mm,180 mm), and the tailing belt is mainly in the range of (280 mm,400 mm) - (300 mm,400 mm); the position of the separating valve in the cutter 61 was adjusted so that concentrate-middlings were in the range (150 mm,180 mm) and middling-tailing valves were in the range (280 mm,300 mm); the setting range of the concentrate belt is (0 mm,150 mm) - (0 mm,180 mm), and the setting range of the tailing belt is (280 mm,400 mm) - (300 mm,400 mm).
In this embodiment, a plurality of groups of electromagnetic coils (magnetic systems 20) are arranged along the spiral direction of the spiral chute 10, the iron cores 21 of the electromagnetic coils are in a C shape, the iron cores 21 span across the bottom and the side surfaces of the spiral chute, two ends of the iron cores 21 respectively correspond to the inner side and the outer side of the spiral chute, the iron cores are in a fan shape when seen from a top view, one end near the inner side of the spiral chute is obviously narrower than one end near the outer side of the spiral chute, so that a magnetic field formed near the groove surface of the spiral chute has the characteristic of large gradient near the inner side of the spiral chute, and magnetic or weak magnetic particles are favorable for moving towards the inner side of the spiral chute.
In this embodiment, the electromagnetic coils may be arranged such that the magnetic field lines formed by the coils are not parallel to the spiral chute faces, but are at an angle.
The invention also provides a chute sorting method, which comprises the following steps: acquiring the distribution image information of the material belt on the spiral chute 10; receiving and analyzing the material belt distribution image information so as to adjust the intensity of a magnetic field acted on the spiral chute 10 by the magnetic system 20 and/or adjust the speed of feeding the material to be sorted into the spiral chute 10; wherein the magnetic field strength of the magnetic system 20 acting on the spiral chute 10 gradually weakens from the inner side of the spiral chute 10 to the outer side of the spiral chute 10.
In one embodiment, the number of magnetic systems 20 is plural, and the magnitude of the magnetic field intensity of the plurality of magnetic systems 20 acting on the spiral chute 10 is controlled, so that the plurality of magnetic systems 20 can be supplied with current amounts of the same magnitude or different magnitudes.
In one embodiment, a specific method for analyzing web distribution image information includes: determining distribution positions of a first material belt, a second material belt and a third material belt in the material belt distribution image information; comparing the position information of the first material belt, the second material belt and the third material belt with preset position information; wherein, when the position information is inconsistent with the preset position information, the intensity of the magnetic field of the magnetic system 20 acting on the spiral chute 10 is regulated, and/or the speed of feeding the materials to be sorted into the spiral chute 10 is regulated. The first material belt, the second material belt and the third material belt are respectively a concentrate belt, a middling belt and a tailing belt.
In one embodiment, the chute sorting method may be applied to the above-described image acquisition-based chute sorting machine.
The invention also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the chute sorting method described above.
In some possible embodiments, the aspects of the present invention may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the invention as described in the electronic prescription stream processing method section of this specification, when said program product is run on the terminal device.
Referring to fig. 4, a program product 300 for implementing the above-described method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable storage medium may include a data signal propagated in baseband or as part of a carrier wave, with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable storage medium may also be any readable medium that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a readable storage medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected via the Internet using an Internet service provider).
The invention also provides an electronic device, comprising: a processor; and a memory for storing executable instructions of the processor; wherein the processor is configured to perform the chute sorting method described above via execution of the executable instructions.
Those skilled in the art will appreciate that the various aspects of the invention may be implemented as a system, method, or program product. Accordingly, aspects of the invention may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, micro-code, etc.) or an embodiment combining hardware and software aspects may be referred to herein as a "circuit," module "or" system.
An electronic device 600 according to this embodiment of the invention is described below with reference to fig. 5. The electronic device 600 shown in fig. 5 is merely an example, and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.
As shown in fig. 5, the electronic device 600 is embodied in the form of a general purpose computing device. Components of electronic device 600 may include, but are not limited to: at least one processing unit 610, at least one memory unit 620, a bus 630 connecting the different system components (including the memory unit 620 and the processing unit 610), a display unit 640, etc.
Wherein the storage unit stores program code that is executable by the processing unit 610 such that the processing unit 610 performs the steps according to various exemplary embodiments of the present invention described in the electronic prescription stream processing method section above in this specification.
The memory unit 620 may include readable media in the form of volatile memory units, such as Random Access Memory (RAM) 6201 and/or cache memory unit 6202, and may further include Read Only Memory (ROM) 6203.
The storage unit 620 may also include a program/utility 6204 having a set (at least one) of program modules 6205, such program modules 6205 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment.
Bus 630 may be a local bus representing one or more of several types of bus structures including a memory unit bus or memory unit controller, a peripheral bus, an accelerated graphics port, a processing unit, or using any of a variety of bus architectures.
The electronic device 600 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), one or more devices that enable a user to interact with the electronic device 600, and/or any device (e.g., router, modem, etc.) that enables the electronic device 600 to communicate with one or more other computing devices. Such communication may occur through an input/output (I/O) interface 650. Also, electronic device 600 may communicate with one or more networks such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the Internet, through network adapter 660. The network adapter 660 may communicate with other modules of the electronic device 600 over the bus 630. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with electronic device 600, including, but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, data backup storage systems, and the like.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a usb disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, or a network device, etc.) to perform the electronic prescription flow processing method according to the embodiments of the present disclosure.
The chute separator based on image acquisition directly quantifies the distribution condition of the ore belt by utilizing an image analysis technology based on machine vision, and is used as a monitoring index, so that the control accuracy is high; according to the analysis result of the ore belt distribution image, a control signal is output, so that intelligent control of the feeding speed and the magnetic field intensity is realized; when the exciting current of the electromagnetic coil is controlled, the exciting current in the electromagnetic coil can be the same or different, so that the control flexibility is improved, and the better sorting result is realized.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and example embodiments be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (15)
1. The chute sorter based on image acquisition is characterized by comprising:
a spiral chute (10), wherein the spiral chute (10) comprises a feed inlet (14) for feeding and a discharge outlet (15) for discharging;
the magnetic system (20) is arranged adjacent to the spiral chute (10), the magnetic field intensity of the magnetic system (20) acting on the spiral chute (10) is gradually weakened from the inner side of the spiral chute (10) to the outer side of the spiral chute (10), the magnetic field intensity of the magnetic system (20) acting on the spiral chute (10) is adjustably arranged, a preset included angle is formed between the magnetic force line of the magnetic system (20) and the groove surface of the spiral chute (10), the preset included angle is an acute angle, the magnetic force line is inclined upwards relative to the groove surface of the spiral chute (10), the magnetic system (20) is an electromagnet, and the electromagnet comprises an iron core (21) and a coil (22) wound on the iron core (21);
The image acquisition part (60) is used for acquiring the material belt distribution image information of the discharge port (15);
and the control system (70) is connected with the image acquisition part (60) and the coil (22) so as to receive the material belt distribution image information acquired by the image acquisition part (60) and adjust the current input into the coil (22) according to the material belt distribution image information.
2. The image acquisition-based chute separator as in claim 1, wherein the control system (70) comprises:
the control end (71) is connected with the image acquisition part (60) so as to receive and analyze the material belt distribution image information;
an excitation current controller (72), wherein the control end (71) is connected with the excitation current controller (72), and the excitation current controller (72) is connected with the coil (22);
the control end (71) analyzes the material belt distribution image information to send out an action signal, and the excitation current controller (72) receives the action signal and adjusts the current input into the coil (22) according to the action signal.
3. The image acquisition-based chute separator as in claim 1, further comprising a feed system (80), the feed system (80) comprising:
A feed pump (81), the feed pump (81) being adapted to communicate with a feed tank (90);
the frequency converter (82), the said frequency converter (82) is connected with said feed pump (81);
a feeding assembly (83), wherein one end of the feeding assembly (83) is communicated with the feeding pump (81), and the other end of the feeding assembly (83) is communicated with the feeding port (14), so that the feeding pump (81) can feed materials to be sorted in the feeding pool (90) into the spiral chute (10) through the feeding assembly (83);
wherein the control system (70) is connected to the frequency converter (82).
4. A chute separator based on image acquisition as claimed in claim 3, wherein said feeding assembly (83) comprises:
a feeder (84), the feeding end of the feeder (84) being located above the feed inlet (14);
a feeding pipe (85), wherein one end of the feeding pipe (85) is communicated with the feeding pump (81), and the other end of the feeding pipe (85) is communicated with the feeder (84);
the feeding pipe (85) is provided with a flowmeter (86), and the flowmeter (86) is connected with the control system (70) so as to convey flow information to the control system (70).
5. The image acquisition based chute separator as in any one of claims 1 to 4, further comprising:
The cutting device (61), the cutting device (61) is connected with the discharge port (15), the cutting device (61) is provided with a plurality of material pipes (611), and the plurality of material pipes (611) and the discharge port (15) can be arranged on-off;
and the light supplementing lamp (62) is at least partially positioned above the discharge hole (15) and is used for providing a light source for the discharge hole (15).
6. The chute separator based on image acquisition according to any one of claims 1 to 4, wherein at least part of the magnetic system (20) extends in a direction coinciding with the direction of extension of the inner side of the spiral chute (10) to the outer side of the spiral chute (10), the magnetic system (20) being an electromagnet comprising:
a core (21);
-a coil (22), said coil (22) being wound on said core (21) for receiving an electric current;
wherein, the width of one end of the iron core (21) near the inner side of the spiral chute (10) is smaller than the width of the other end of the iron core (21) near the outer side of the spiral chute (10), so that the magnetic field intensity of the electromagnet acting on the spiral chute (10) gradually weakens from the inner side of the spiral chute (10) to the outer side of the spiral chute (10).
7. The image acquisition-based chute separator as in claim 6, wherein said iron core (21) comprises:
-a body section (211), said body section (211) being located below a portion of the spiral chute (10), said coil (22) being wound on said body section (211);
the first bending section (212) is connected with one end of the main body section (211), and the first bending section (212) is positioned on the inner side of the spiral chute (10).
8. The image acquisition-based chute separator as in claim 7, wherein said iron core (21) further comprises:
the second bending section (213) is connected with the other end of the main body section (211) far away from the first bending section (212), and the second bending section (213) is positioned at the outer side of the spiral chute (10);
wherein the width of one end of the main body section (211) connected with the first bending section (212) is smaller than the width of the other end of the main body section (211) connected with the second bending section (213).
9. The image acquisition-based chute separator as in any one of claims 1 to 4, wherein the magnetic system (20) is a plurality, the image acquisition-based chute separator further comprising:
The support (30), the support (30) comprises a supporting frame (31) and a supporting rod (32) arranged in the middle of the supporting frame (31), and the spiral chute (10) is arranged around the supporting rod (32);
wherein a plurality of the magnetic systems (20) are arranged on the support rod (32) at intervals.
10. The image acquisition based chute separator as in any one of claims 1 to 4, further comprising:
and the stopping part (40) is arranged inside the spiral chute (10) and is used for being contacted with materials to be separated, which move along the spiral chute (10).
11. The image acquisition based chute separator as in any one of claims 1 to 4, further comprising:
and the flushing pipe (50) is arranged on the spiral chute (10) and is used for feeding water flow into the materials to be separated on the spiral chute (10).
12. A chute sorting method, comprising:
acquiring distribution image information of a material belt on a spiral chute (10);
receiving and analyzing the belt distribution image information so as to adjust the intensity of a magnetic field acted on the spiral chute (10) by a magnetic system (20) and/or adjust the speed of feeding the materials to be sorted into the spiral chute (10);
Wherein the magnetic field intensity of the magnetic system (20) acting on the spiral chute (10) gradually weakens from the inner side of the spiral chute (10) to the outer side of the spiral chute (10).
13. The chute sorting method according to claim 12, wherein the specific method of analyzing the web distribution image information comprises:
determining distribution positions of a first material belt, a second material belt and a third material belt in the material belt distribution image information;
comparing the position information of the first material belt, the second material belt and the third material belt with preset position information;
when the position information is inconsistent with the preset position information, the intensity of the magnetic field of the magnetic system (20) acting on the spiral chute (10) is regulated, and/or the speed of feeding the materials to be separated into the spiral chute (10) is regulated.
14. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the chute sorting method of claim 12 or 13.
15. An electronic device, comprising:
a processor; and
a memory for storing executable instructions of the processor;
Wherein the processor is configured to perform the chute sorting method of claim 12 or 13 via execution of the executable instructions.
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