CN210230262U - Chute sorter based on image acquisition - Google Patents
Chute sorter based on image acquisition Download PDFInfo
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- CN210230262U CN210230262U CN201921024812.4U CN201921024812U CN210230262U CN 210230262 U CN210230262 U CN 210230262U CN 201921024812 U CN201921024812 U CN 201921024812U CN 210230262 U CN210230262 U CN 210230262U
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Abstract
The utility model relates to the technical field of material sorting, and provides a chute sorting machine based on image acquisition, which comprises a spiral chute, a magnetic system and an image acquisition part; the spiral chute comprises a feeding hole for feeding and a discharging hole 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 magnetic field intensity of the magnetic system.
Description
Technical Field
The utility model relates to a material sorting technology field especially relates to a chute sorter based on image acquisition.
Background
The spiral chute is a kind of flowing film sorting equipment, and is commonly used in ore dressing plant to sort fine metal ore. The flow field of the cross section of the spiral chute has a circulating flow with an outward upper layer and an inward bottom layer, and the fine particles of the selected metal ore are mainly acted by gravity, buoyancy, centrifugal force, friction force, fluid resistance and equipment wall surface supporting force in the flow field in the equipment. Generally, the feeding particles are firstly longitudinally layered, in the process, coarse and heavy particles tend to be distributed in a lower layer, and light and fine particles are mainly distributed in an upper layer; in the process of doing spiral motion downwards along the groove surface, the friction force between the light fine particles and the groove surface is small, and the light fine particles are brought to the inner side of the cross section of the spiral chute by the fluid flowing inwards; the friction between the coarse and heavy particles and the groove surface is large and mainly distributed on the outer side, so that all the fed particles are gradually distributed in a belt manner in the process of flowing along the groove surface of the spiral chute.
Ideally, the order of zonal distribution of different feeding particles on the groove surface is (from inside to outside): high density fine, high density coarse, low density fine, low density coarse, the outermost being fine mud. However, in actual separation, the main problem of spiral chute separation is that high-density fine particles are easily mixed into middling and tailings, which results in the loss of fine-fraction concentrate, and low-density coarse particles are easily mixed into concentrate, which results in the larger overall particle size and the lower grade of the concentrate product.
SUMMERY OF THE UTILITY MODEL
One of the main objects of the present disclosure is to overcome the above-mentioned problem of poor sorting effect of the spiral chute in the prior art, and to provide a chute sorter based on image acquisition.
The utility model provides a chute sorter based on image acquisition, include:
the spiral chute comprises a feeding hole for feeding and a discharging hole 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 port.
The utility model discloses an in the embodiment, magnetism is the electro-magnet, and the electro-magnet includes the iron core and twines the coil on the iron core, and the chute sorter based on image acquisition still includes:
and the control system is connected with the image acquisition part and the coils to receive the material belt distribution image information acquired by the image acquisition part and adjust the current of the input coils according to the material belt distribution image information.
In an embodiment of the present invention, the 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 distribution image information of the material belt to send an action signal, and the exciting current controller receives the action signal and adjusts the current of the input coil according to the action signal.
The utility model discloses an in the embodiment, chute sorter based on image acquisition still includes feeding system, and feeding system includes:
the feeding pump is communicated with the feeding pool;
the frequency converter is connected with the feeding pump;
one end of the feeding component is communicated with the feeding pump, and the other end of the feeding component is communicated with the feeding hole, so that the feeding pump feeds materials to be sorted in the feeding pool into the spiral chute through the feeding component;
wherein, the control system is connected with the frequency converter.
In an embodiment of the present invention, the feeding assembly includes:
the feeding end of the feeder is positioned above the feeding hole;
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;
wherein, be provided with the flowmeter on the pan feeding pipe, the flowmeter is connected with control system to flow information is carried to control system.
In an embodiment of the present invention, the chute sorter based on image acquisition further comprises:
the material interceptor is connected with the discharge port, the material interceptor is provided with a plurality of material pipes, and the plurality of material pipes and the discharge port can be arranged in a switching manner;
the light filling lamp, at least part of light filling lamp is located the top of discharge gate to be used for providing the light source to the discharge gate.
In an embodiment of the present invention, at least a part of the magnetic system extends in the same direction as the inner side of the spiral chute, and the magnetic system is an electromagnet, and the electromagnet includes:
an iron core;
the coil is wound on the iron core and used for receiving 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 an embodiment of the present invention, the iron core includes:
a main body section located below a portion of the spiral chute, the coil being wound on the main body section;
the first bending section is connected with one end of the main body section and is positioned on the inner side of the spiral chute.
In an embodiment of the present invention, the iron 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 the second bending section is positioned on 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 an embodiment of the present invention, the magnetic system is plural, and the chute sorter based on image acquisition further includes:
the spiral chute is arranged around the supporting rod;
wherein, a plurality of magnetic systems are arranged on the supporting rod at intervals.
In an embodiment of the present invention, the chute sorter based on image acquisition further comprises:
the stopping part is arranged in the spiral chute and is used for being in contact with the materials to be sorted moving along the spiral chute.
In an embodiment of the present invention, the chute sorter based on image acquisition further comprises:
and the flushing pipe is arranged on the spiral chute and used for feeding the materials to be sorted on the spiral chute into water flow.
The utility model discloses a chute sorter based on image acquisition can confirm through the material area distribution image information that image acquisition portion acquireed the discharge gate and treat the distribution of sorting material when reacing the discharge gate to can carry out the analysis to its distribution, then confirm the effect of sorting according to the sorting result. The magnetic system acts on the magnetic field intensity of the spiral chute to directly influence the sorting effect, so that the magnetic field intensity of the spiral chute acted by the magnetic system can be correspondingly adjusted according to the material belt distribution image information, the sorting effect is guaranteed to reach the best state, the magnetic field intensity can be reasonably utilized, and the electric power cannot be wasted. When the material to be sorted passes through a magnetic field area formed by the 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 zonal distribution trend of the magnetic or weak magnetic particles and gangue particles along the groove surface of the spiral chute is strengthened, and the recovery rate of the magnetic or weak magnetic fine particles in the concentrate is improved.
Drawings
Various objects, features and advantages of the present disclosure will become more apparent from the following detailed description of preferred embodiments thereof, which is to be read in connection with the accompanying drawings. The drawings are merely exemplary illustrations of the disclosure and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:
FIG. 1 is a schematic diagram of a configuration of an image acquisition based chute sorter, according to an exemplary embodiment;
FIG. 2 is a schematic diagram of a magnetic system configuration of an image acquisition based chute sorter according to an exemplary first embodiment;
FIG. 3 is a schematic diagram of a magnetic system configuration of an image acquisition based chute sorter according to an exemplary second embodiment;
FIG. 4 schematically illustrates a computer-readable storage medium in an exemplary embodiment of the disclosure;
fig. 5 schematically illustrates an electronic device in an exemplary embodiment of the disclosure.
The reference numerals are explained below:
10. a spiral chute; 11. the bottom surface of the spiral chute; 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 support; 31. a support frame; 32. a support bar; 40. a stopper portion; 50. a flush pipe; 60. an image acquisition unit; 61. a material cutter; 611. a material pipe; 62. a light supplement 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. a program/utility tool; 6205. a program module; 630. a bus; 640. a display unit; 650. an input/output (I/O) interface; 660. a network adapter; 700. and (4) an external device.
Detailed Description
Exemplary embodiments that embody features and advantages of the present disclosure are described in detail below in the specification. It is to be understood that the disclosure is capable of various modifications in various embodiments without departing from the scope of the disclosure, and that the description and drawings are to be regarded as illustrative in nature, and not as restrictive.
In the following description of various exemplary embodiments of the disclosure, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration various exemplary structures in which aspects of the disclosure may be practiced. Other specific arrangements of systems and steps, 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 orientation of the examples in the drawings. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this disclosure.
An embodiment of the utility model provides a chute sorter based on image acquisition, please refer to fig. 1 to 3, chute sorter based on image acquisition includes: the spiral chute 10, the spiral chute 10 includes the feed inlet 14 used for feeding and discharge outlet 15 used 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 part 60, the image acquisition part 60 is used for obtaining the material belt distribution image information of the discharge hole 15.
The utility model discloses a chute sorter based on image acquisition can confirm the distribution of waiting to select separately the material when reacing discharge gate 15 through image acquisition portion 60 acquisition discharge gate 15's material area distribution image information, thereby can carry out the analysis to its distribution, then confirm the effect of selecting separately according to the sorting result, and magnetism is 20 and is acted on the magnetic field intensity size direct influence of spiral chute 10 and selects separately the effect, so can come corresponding regulation magnetism to be 20 according to material area distribution image information and act on the magnetic field intensity size of spiral chute 10, with this guarantee to select separately the effect and reach the optimum, and can rational utilization magnetic field intensity, be unlikely to extravagant electric power. The utility model discloses a chute sorter based on image acquisition can improve separation quality through setting up of magnetism system 20, and the setting of image acquisition portion 60 can also be adjusted the magnetic field intensity size of magnetism system 20.
In one embodiment, by applying the magnetic system 20 within the spiral chute 10, i.e. while the material to be sorted is moving sorted along the extension of the spiral chute 10, the magnetic force generated by the magnetic system 20 acts on the material to be sorted within the spiral chute 10, and 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, i.e. when the material to be sorted passes through the region of the magnetic field formed by the magnetic system 20, the magnetic or weakly magnetic particles are subjected to a generally inward magnetic force, so that the distribution region of the magnetic or weakly magnetic particles is closer to the inner side of the spiral chute 10, thereby strengthening the zonal distribution trend of the magnetic or weak magnetic particles and the gangue particles along the groove surface of the spiral chute 10, improving the recovery rate of the magnetic or weak magnetic fine particles in the concentrate, and solving the problem of poor sorting effect of the spiral chute in the prior art.
To the specific selection of magnetic system 20, magnetic system 20 is the electro-magnet, and the electro-magnet includes iron core 21 and the coil 22 of winding on iron core 21, and the chute sorter based on image acquisition still includes: and the control system 70, the control system 70 is connected with both the image acquisition part 60 and the coil 22 to receive the tape distribution image information acquired by the image acquisition part 60 and adjust the current input into the coil 22 according to the tape distribution image information.
In one embodiment, by connecting the control system 70 to both the image acquisition part 60 and the coil 22, the control system 70 has the function of receiving the image information of the distribution of the analyzed tapes, and can also adjust the current input to the coil 22 according to the specific analysis result.
With respect to the 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 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 tape distribution image information to send an action signal, and the excitation current controller 72 receives the action signal and adjusts the current magnitude of the input coil 22 according to the action signal.
In one embodiment, the control system 70 is composed of a control terminal 71 and an excitation current controller 72, the control system 70 is configured to receive and analyze the tape distribution image information, and then transmit the analyzed result to the excitation current controller 72, and the excitation current controller 72 can adjust the current input to the coil 22 according to the analyzed result. If the separation portion is complete, the current may be increased, and the separation effect may be preferably decreased, so as to reduce the amount of electricity used.
In view of the practical application of the chute sorting machine based on image acquisition, as shown in fig. 1, the chute sorting machine based on image acquisition further comprises a feeding system 80, and the feeding system 80 comprises: a feeding pump 81, wherein the feeding pump 81 is used for being communicated with the feeding pool 90; a frequency converter 82, wherein the frequency converter 82 is connected with the feeding pump 81; one end of the feeding component 83 is communicated with the feeding pump 81, and the other end of the feeding component 83 is communicated with the feeding hole 14, so that the feeding pump 81 feeds the materials to be sorted in the feeding pool 90 into the spiral chute 10 through the feeding component 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 feeding rate of the feeding system 80 is adjusted accordingly according to the direction result obtained by the strip distribution image information by connecting the control system 70 with the frequency converter 82 of the feeding system 80.
In one embodiment, the frequency converter 82 directly controls the efficiency of the feed pump 81 drawing material to be sorted from the feed basin 90 and the amount of material fed to the spiral chute 10, so that it is necessary to adjust the frequency converter 82 via the control system 70 to achieve an adjustable 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 port 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; wherein, a flow meter 86 is arranged on the feeding pipe 85, and the flow meter 86 is connected with the control system 70 to transmit 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, the feed tube 85 being used to feed the 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 flow meter 86 is coupled to the control system 70 primarily to allow the controller to obtain the feed rate in real time and then adjust the magnetic field strength and feed rate after the image information is distributed across the strip to ensure optimal sorting.
In one embodiment, the image acquisition-based chute sorter further comprises: the material interceptor 61 is connected with the discharge port 15, the material interceptor 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 in a switching manner; the light supplement lamp 62, at least part of the light supplement lamp 62 is located above the discharging hole 15, so as to provide a light source for the discharging hole 15. The material cutter 61 is mainly used for feeding the sorted different material strips to a specific receiving position, and the light supplement 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 pipe, the middling pipe and the tailing pipe are sequentially arranged along the inner side of the spiral chute 10 to the outer side of the spiral chute 10, after the distribution of the separated strips along the groove surface is completed, the material to be separated is discharged from the discharge hole 15 at the tail end of the spiral chute 10, and different ore strips are respectively discharged from the concentrate pipe, the middling pipe and the tailing pipe by adjusting the ore separating valve in the material cutter 61.
In one embodiment, the portion of the spiral chute 10 represents a partial trough section of the spiral chute 10, i.e., considering that the spiral chute 10 extends in a generally spiral manner, a magnetic system 20 may be located below a section of the spiral chute 10, i.e., it may be understood that the magnetic system 20 is located between two 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 for discharging, i.e., a magnetic system 20 is located between the feed inlet 14 and the discharge outlet 15 that forms 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 a 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 magnetic system 20 is located across the width direction of the spiral chute 10, that is, the extending direction is consistent 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 is close to the surrounding central position of the spiral chute 10, and the outer side of the spiral chute 10 is far away from the surrounding central position of the spiral chute 10.
Regarding the surface composition of the spiral chute 10, as shown in fig. 2 and 3, 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; the projection of the part of the inner side surface 12 of the spiral chute on the magnetic system 20 positioned below the inner side surface is positioned in the magnetic system 20.
In one embodiment, the trough surface of the spiral trough 10, i.e. the inner surface of the spiral trough 10, is composed of a spiral trough bottom surface 11 and a spiral trough inner side surface 12 and a spiral trough outer side surface 13 connected to both ends of the spiral trough bottom surface 11, wherein the spiral trough inner side surface 12 is the side surface close to the inner side of the spiral trough 10, and the spiral trough outer side surface 13 is the side surface close to the outer side of the spiral trough 10. In order to ensure that the spiral chute inner side surface 12 is located in the magnetic field region, therefore, the projection of the portion of the spiral chute inner side surface 12 on the magnetic system 20 located therebelow is located inside the magnetic system 20, that is, the extending direction of one end of the magnetic system 20 crosses the spiral chute inner side surface 12, which can be interpreted as that one end of the magnetic system 20 is closer to the central position surrounded by the spiral chute 10 than the spiral chute inner side surface 12 is to the central position surrounded by the spiral chute 10.
In one embodiment, since the magnetic system 20 is only arranged opposite to a part of the spiral chute 10, the projection of the part of the spiral chute inner side surface 12 on the magnetic system 20 located therebelow is located inside the magnetic system 20. If viewed from the overall structure, the position of one magnetic system 20 may be located below a certain section of the spiral chute 10, relative to another section may be above, and only the bottom surface of the spiral chute 10 acting between the magnetic systems 20 is considered here.
Optionally, the projection of the part of the spiral chute outer side surface 13 on the magnetic system 20 located therebelow is located inside the magnetic system 20. Along a certain linear direction, when two ends of the magnetic system 20 are respectively positioned 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 positioned in a magnetic field area formed by the magnetic system 20, so that magnetic or weakly magnetic particles are subjected to overall inward magnetic force, and the distribution area of the magnetic or weakly magnetic particles is closer to the inner side of the spiral chute 10.
As shown in fig. 2 and 3, with respect to the specific structure of the magnetic system 20, at least a part of the magnetic system 20 extends in a direction that coincides with an extending direction from the inside of the spiral chute 10 to the outside of the spiral chute 10, and the magnetic system 20 is an electromagnet including: an iron core 21; a coil 22, the coil 22 being wound on the core 21 for receiving current; the width of one end of the iron core 21 close to the inner side of the spiral chute 10 is smaller than the width of the other end of the iron core 21 close to 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, that is, the magnetic force generated by the magnetic system 20 is controlled by an external current, in order to gradually weaken the magnetic field intensity of the electromagnet on the spiral chute 10 from the inner side of the spiral chute 10 to the outer side of the spiral chute 10, so that the width of one end of the iron core 21 close to the inner side of the spiral chute 10 is smaller than the width of the other end of the iron core 21 close to the outer side of the spiral chute 10, and the magnetic field density of one end of the iron core 21 close to the inner side of the spiral chute 10 is relatively large, so that the magnetic or weakly magnetic particles are subjected to a generally 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 on the horizontal plane forms a plane resembling a sector, i.e. the width of the two end faces is not uniform.
As for a specific structural form of the iron core 21, as shown in fig. 1 and 2, the iron 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; a first bending section 212, the first bending section 212 is connected to one end of the main body section 211, and the first bending section 212 is located inside 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, 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 inside the spiral chute 10, i.e. is located opposite to the side of the spiral chute 10, when 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 body, 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 arranged opposite to the spiral chute 10.
Further, as shown in fig. 2, the core 21 further includes: a second bending section 213, the second bending section 213 is connected to the other end of the main body section 211 far away from the first bending section 212, and the second bending section 213 is located outside the spiral chute 10; the width of the end of the main body segment 211 connected to the first bending segment 212 is smaller than the width of the other end of the main body segment 211 connected to the second bending segment 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 respectively located at two ends of the main body section 211.
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 disposed 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.
In the first embodiment of the core 21, as shown in fig. 2, the top view of the core 21 is a sector, both the left and right ends of the core 21 are bent upward, the left end is narrow, the right end is wide, the magnetic induction lines are 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 groove surface of the spiral chute 10 near the left end is greater than the magnetic induction line density near the groove surface of the spiral chute 10 near the right end. In the process that the magnetic particles flow downwards along the groove surface of the spiral chute, the magnetic particles are subjected to the action of a leftward magnetic field force, so that the magnetic particles tend to be distributed on the inner side of the spiral chute 10 more easily, and are separated from the nonmagnetic particles.
For the second embodiment of the iron core 21, as shown in fig. 3, only the left end of the iron core 21 is bent upward, and the top view is also in a sector shape, the left end of the cross section of the iron core 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 applied to the magnetic particles in the magnetic field can be calculated according to the following formula:
fm＝μ0VKH grad H
μ0vacuum magnetic permeability, H/m; v is the particle volume, m3(ii) a K is the particle 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 force lines of the magnetic system 20 and the groove surface of the spiral chute 10 form a predetermined included angle, the predetermined included angle is an acute angle, and the magnetic force lines are inclined upward relative to the groove surface of the spiral chute 10. The magnetic system 20 forms an upward magnetic field force relative to the groove surface of the spiral chute 10, that is, the magnetic system can provide an upward force for the material to be sorted, so that the friction force between the material to be sorted and the groove surface of the spiral chute 10 can be reduced, the sorting effect is improved to a certain extent, and the range of the preset included angle can be selected to be 0-25 degrees.
In one embodiment, the magnetic system 20 is multiple, and the chute sorter based on image acquisition further comprises: the spiral chute 10 comprises a bracket 30, wherein the bracket 30 comprises a support frame 31 and a support rod 32 arranged in the middle of the support frame 31, and the spiral chute 10 is arranged around the support rod 32; wherein, a plurality of magnetic systems 20 are arranged on the support bar 32 at intervals. By arranging a plurality of magnetic systems 20 at intervals on the support bar 32, i.e. a plurality of magnetic systems 20 can generate magnetic field regions at different positions, the whole sorting process can be optimized.
In one embodiment, the position of the support rod 32 can be understood as the central position of the spiral chute 10, and the magnetic system 20 is disposed on the support rod 32, and the magnetic field lines generated by the magnetic system 20 can be regarded as a circular radial line in a certain space.
In one embodiment, the image acquisition-based chute sorter further comprises: a stop 40, the stop 40 being disposed inside the spiral chute 10 for contact with material to be sorted moving along the spiral chute 10. When the material to be sorted runs against the stopping part 40 along the groove surface of the spiral chute 10, magnetic aggregates formed by the action of the magnetic field in the material to be sorted are loosened under the action of turbulent eddies formed by the stopping part 40 and falling from the surface of the stopping part 40 to the groove surface, gangue particles contained in the material to be sorted are released and move along the groove surface again, so that zonal distribution is realized, and the pollution of gangue impurities in the magnetic aggregates to concentrate is reduced.
In one embodiment, 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, 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 11 and is connected to both the spiral chute inner side 12 and the spiral chute outer side 13, i.e. it divides the chute 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, i.e. enclosed by three surfaces, the first surface contacting the material to be sorted being the upstream surface, one of which is attached to the bottom 11 of the spiral chute, the opposite side of the upstream surface being at an angle of (0, 90) to the bottom 11 of the spiral chute, the other side being perpendicular to the bottom 11 of the spiral chute.
Optionally, the stopper 40 is multiple, and the multiple stoppers 40 are arranged along the extending direction of the spiral chute 10. Two stops 40 may be arranged adjacent to each other, and may form a 3-degree angle with the spiral chute 10.
In one embodiment, as shown in fig. 1, the chute sorter based on image acquisition further comprises: and the flushing pipe 50 is arranged on the spiral chute 10 and used for feeding the material to be sorted on the spiral chute 10 into water flow. The arrangement of the flushing pipe 50 can flush the fine mud moving to the inner side of the spiral chute 10 during the sorting process to the outer side, so as to reduce the content of the fine mud in the concentrate.
Optionally, 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, the water outlet of the flushing pipe 50 is located on the spiral chute inner side surface 12, and the center line of the water outlet is arranged to be inclined downward to the spiral chute bottom surface 11.
Optionally, the flush pipe 50 is plural, and the plural flush pipes 50 are arranged along the extending direction of the spiral chute 10.
In one embodiment, the image capturing unit 60 can be a camera, the control terminal 71 is a control PC, the solid line in fig. 1 is a material line, the dotted line is a monitoring signal line, and the feeding pump 81 is a feeding screw pump.
To the utility model discloses a chute sorter's a specific embodiment based on image acquisition, as shown in fig. 1 to 3:
the utility model discloses a chute sorter based on image acquisition is a spiral chute control system in composite magnetic field, and this system can carry out intelligent control to operating parameter such as pan feeding speed and solenoid electric current according to the trough face ore deposit area distribution condition based on machine vision's image analysis technique.
The excitation current controller 72 can respectively control the excitation currents in different electromagnets, and the control range of the excitation current is 0A-20A.
During normal separation, the distribution positions of concentrate, middlings and tailings on the groove surface are in a reasonable range, the reasonable range is used as a set value for controlling the groove surface ore belt, if the range deviates from the set value, 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 belt distribution picture of the spiral chute 10 to a control PC (a control end 71) in real time, the control PC carries out quantitative analysis on the transmitted ore belt distribution picture to obtain the accurate positions of the trough surfaces of the concentrate, the middlings and the tailings, the accurate positions are compared with the set range of ore belt distribution, and if the ore belt position is within the set range, the control PC does not send a control signal; otherwise, the control PC sends out action signals to a feeding screw pump frequency converter (frequency converter 82) and an excitation current controller 72 to adjust the feeding speed and the magnetic field intensity; the stress and the motion of the selected magnetic or weakly magnetic particles on the groove surface can be influenced by the feeding speed and the magnetic field intensity, so that the distribution condition of the ore belt on the groove surface is influenced, and the distribution control of the ore belt on the groove surface is realized by the real-time monitoring of the distribution of the ore belt on the groove surface.
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 groove surface of the spiral chute. The feeding material moves along the groove surface and is longitudinally layered at first, in the process, coarse and heavy particles tend to be distributed on the lower layer, and light and fine particles are mainly distributed on the upper layer; in the process of continuously doing downward spiral motion along the groove surface, the friction force between the light fine particles and the groove surface is small, and the light fine particles are brought to the inner side of the cross section of the spiral chute by the fluid flowing inwards; the friction between the coarse and heavy particles and the groove surface is large and mainly distributed on the outer side. The excitation current controller 72 is adjusted to enable the excitation currents entering the four electromagnetic coils in the figure 1 to be 5A, 3A and 5A respectively, when the fed material passes through a magnetic field area formed by the electromagnets, 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 zonal distribution trend of the magnetic or weak magnetic particles and gangue particles along the chute surface is strengthened, and the recovery rate of the magnetic or weak magnetic fine particles in the concentrate is improved.
In the embodiment, the width of the groove surface of the spiral chute is 400mm, when the separation is normally carried out, the inner side surface 12 of the spiral chute is taken as 0 point, the concentrate zone is mainly positioned in the range of (0mm, 150mm) - (0mm, 180mm), and the tailing zone is mainly positioned in the range of (280mm, 400mm) - (300mm, 400 mm); adjusting the position of the mineral separation valve in the interceptor 61 so that the concentrate-middlings are in the range of (150mm, 180mm) and the middlings-tailings valves are in the range of (280mm, 300 mm); the setting range of the concentrate zone is (0mm, 150mm) - (0mm, 180mm), and the setting range of the tailing zone is (280mm, 400mm) - (300mm, 400 mm).
In this embodiment, a plurality of groups of electromagnetic coils (magnetic system 20) are arranged along the spiral direction of the spiral chute 10, an iron core 21 of the electromagnetic coils is C-shaped, the iron core 21 crosses the bottom and the side of the spiral chute, two ends of the iron core 21 respectively correspond to the inner side and the outer side of the spiral chute, the iron core is fan-shaped when viewed from a top view, one end close to the inner side of the spiral chute is obviously narrower than one end close to 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 of the magnetic field close to the inner side of the spiral chute, and the.
In this embodiment, the solenoid may be arranged such that the magnetic field lines formed by the solenoid are not parallel to the spiral chute surface, but are at an angle.
The utility model also provides a chute sorting method, include: acquiring material belt distribution image information on the spiral chute 10; receiving and analyzing the material belt distribution image information so as to adjust the magnetic field intensity of the magnetic system 20 acting on the spiral chute 10 and/or adjust the speed of the material to be sorted to be fed 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.
In one embodiment, the number of the magnetic systems 20 is plural, and the magnitude of the magnetic field applied to the spiral chute 10 by the plural magnetic systems 20 is controlled, that is, the current amounts having the same magnitude may be input to the plural magnetic systems 20, or the current amounts having different magnitudes may be input.
In one embodiment, the specific method for analyzing the image information of the distribution of the material strips comprises the following steps: determining the 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 magnetic field intensity of the magnetic system 20 acting on the spiral chute 10 is adjusted, and/or the speed of the material to be sorted being fed into the spiral chute 10 is adjusted. Wherein, the first material area, the second material area and the third material area are respectively a concentrate ore area, a middle ore area and a tailing area.
In one embodiment, the chute sorting method may be applied to the image acquisition-based chute sorter described above.
The utility model also provides a computer readable storage medium, its storage has computer program on, and this program realizes foretell chute separation method when being executed by the treater.
In some possible embodiments, the various aspects of the present invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the present invention described in the above-mentioned electronic prescription flow processing method section of the present description, when said program product is run on the terminal device.
Referring to fig. 4, a program product 300 for implementing the above 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. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc 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 propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable storage medium may also be any readable medium that is not a readable storage medium and 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 for aspects 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 and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, 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., through the internet using an internet service provider).
The utility model also provides an electronic equipment, include: a processor; and a memory for storing executable instructions for the processor; wherein the processor is configured to perform the above-described chute sorting method via execution of executable instructions.
As will be appreciated by one skilled in the art, aspects of the present invention may be embodied as a system, method or program product. Accordingly, various aspects of the present invention may be embodied in the following forms, namely: an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.) or an embodiment combining hardware and software aspects that may all generally 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 only an example, and should not bring any limitation to the functions and the scope of the 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. The components of the electronic device 600 may include, but are not limited to: at least one processing unit 610, at least one storage unit 620, a bus 630 that connects the various system components (including the storage unit 620 and the processing unit 610), a display unit 640, and the like.
Wherein the storage unit stores program code 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 above-mentioned electronic prescription flow processing method section of this specification.
The storage unit 620 may include readable media in the form of volatile memory units, such as a random access memory unit (RAM)6201 and/or a cache memory unit 6202, and may further include a read-only memory unit (ROM) 6203.
The memory 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 of which, or some combination thereof, may comprise an implementation of a network environment.
The electronic device 600 may also communicate with one or more external devices 700 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 600, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 600 to communicate with one or more other computing devices. Such communication may occur via an input/output (I/O) interface 650. Also, the electronic device 600 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network such as the Internet) via the network adapter 660. The network adapter 660 may communicate with other modules of the electronic device 600 via the bus 630. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 600, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, 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 (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, or a network device, etc.) to execute the above-mentioned electronic prescription flow processing method according to the embodiments of the present disclosure.
The chute sorting machine based on image acquisition of the utility model utilizes the image analysis technology based on machine vision, directly quantifies the distribution condition of ore belts as a monitoring index, and has high control accuracy; control signals are output according to the analysis result of the ore belt distribution image, so that the 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 currents in the electromagnetic coil can be the same or different, so that the control flexibility is improved, and a 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. The present 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 exemplary embodiments be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (12)
1. A chute sorter based on image acquisition, comprising:
the spiral chute (10), the spiral chute (10) includes the feed inlet (14) used for feeding and the discharge outlet (15) used 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 reduced 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 set;
the device comprises an image acquisition part (60), wherein the image acquisition part (60) is used for acquiring the material belt distribution image information of the discharge hole (15).
2. The image acquisition-based chute sorter according to claim 1, characterized in that the magnetic system (20) is an electromagnet comprising a core (21) and a coil (22) wound on the core (21), the image acquisition-based chute sorter further comprising:
the control system (70) is connected with the image acquisition part (60) and the coil (22) 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.
3. The image acquisition-based chute sorter according to claim 2, wherein the control system (70) comprises:
the control end (71), the said control end (71) is connected with said image acquisition part (60), in order to receive and analyze the said material tape and distribute the 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.
4. The image acquisition-based chute sorter according to claim 2, characterized in that the image acquisition-based chute sorter further comprises a feed system (80), the feed system (80) comprising:
the feeding pump (81), the feeding pump (81) is used for being communicated with the feeding pool (90);
a frequency converter (82), wherein the frequency converter (82) is connected with the feeding 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 hole (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 the frequency converter (82).
5. The image acquisition-based chute sorter according to claim 4, wherein the feed assembly (83) comprises:
a feeder (84), a feeding end of the feeder (84) being located above the feed opening (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 flow meter (86), and the flow meter (86) is connected with the control system (70) to convey flow information to the control system (70).
6. The image acquisition-based chute sorter according to any of claims 1 to 5, further comprising:
the material interceptor (61) is connected with the discharge port (15), a plurality of material pipes (611) are arranged on the material interceptor (61), and the plurality of material pipes (611) and the discharge port (15) can be connected and disconnected;
the light supplement lamp (62), at least part of light supplement lamp (62) is located the top of discharge gate (15) for to discharge gate (15) provide the light source.
7. The image acquisition-based chute sorter according to any of the claims 1 to 5, characterized in that the extension direction of at least part of the magnetic system (20) coincides with the extension direction of the inside of the spiral chute (10) to the outside of the spiral chute (10), the magnetic system (20) being an electromagnet comprising:
an iron core (21);
a coil (22), the coil (22) being wound around the core (21) for receiving an electric current;
the width of one end, close to the inner side of the spiral chute (10), of the iron core (21) is smaller than the width of the other end, close to the outer side of the spiral chute (10), of the iron core (21), 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).
8. The image acquisition-based chute sorter according to claim 7, characterized in that the core (21) comprises:
a body segment (211), the body segment (211) being located below a portion of the spiral trough (10), the coil (22) being wound on the body segment (211);
a first bending section (212), wherein the first bending section (212) is connected with one end of the main body section (211), and the first bending section (212) is positioned at the inner side of the spiral chute (10).
9. The image acquisition-based chute sorter according to claim 8, wherein the spool (21) further comprises:
a second bending section (213), wherein 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 segment (211) connected with the first bending segment (212) is smaller than the width of the other end of the main body segment (211) connected with the second bending segment (213).
10. The image acquisition-based chute sorter according to any of claims 1 to 5, characterized in that the magnetic system (20) is plural, further comprising:
the spiral chute comprises a bracket (30), wherein the bracket (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.
11. The image acquisition-based chute sorter according to any of claims 1 to 5, further comprising:
a stop (40), the stop (40) being arranged inside the spiral chute (10) for contacting material to be sorted moving along the spiral chute (10).
12. The image acquisition-based chute sorter according to any of claims 1 to 5, further comprising:
the water flushing pipe (50) is arranged on the spiral chute (10) and used for feeding the materials to be sorted on the spiral chute (10) into water flow.
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| CN201921024812.4U CN210230262U (en) | 2019-07-03 | 2019-07-03 | Chute sorter based on image acquisition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302890A (en) * | 2019-07-03 | 2019-10-08 | 中国恩菲工程技术有限公司 | Chute separator, method and storage medium and electronic equipment based on Image Acquisition |
| CN111672448A (en) * | 2020-04-30 | 2020-09-18 | 洛阳市奇航化工有限公司 | Reaction device applied to sodium silicate continuous production process |
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2019
- 2019-07-03 CN CN201921024812.4U patent/CN210230262U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302890A (en) * | 2019-07-03 | 2019-10-08 | 中国恩菲工程技术有限公司 | Chute separator, method and storage medium and electronic equipment based on Image Acquisition |
| CN110302890B (en) * | 2019-07-03 | 2023-08-22 | 中国恩菲工程技术有限公司 | Chute sorting machine and method based on image acquisition, storage medium and electronic equipment |
| CN111672448A (en) * | 2020-04-30 | 2020-09-18 | 洛阳市奇航化工有限公司 | Reaction device applied to sodium silicate continuous production process |
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