CN115501965A

CN115501965A - Ore transmission device based on image processing

Info

Publication number: CN115501965A
Application number: CN202211470754.4A
Authority: CN
Inventors: 蒋力帅; 李春盎; 李丕茂; 黄屹峰; 陈东印; 徐嘉嵘
Original assignee: Shandong University of Science and Technology
Current assignee: Shandong University of Science and Technology
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2022-12-23
Anticipated expiration: 2042-11-23
Also published as: CN115501965B

Abstract

The invention discloses an ore transmission device based on image processing, and particularly relates to the field of image generation and processing, the ore transmission device comprises a visual sensor and segmented scraper conveyors, wherein a differential scraper conveyor is arranged between at least one group of segmented scraper conveyors; when the vision sensor is adopted, in the image acquisition processing, the vision sensor acquires the ore real-time image on the scraper conveyor and the boundary of the scraper conveyor at regular time within a set distance; setting the optimal ore appearance of the jaw crusher according to the parameters of the matched jaw crusher and storing the optimal ore appearance as a prestored image boundary; the image processing is compared based on the appearance size of the ore, the image boundary characteristic value of the ore in the target area image is extracted by taking the transverse boundary of the scraper conveyor as a reference object, and compared with the prestored image boundary, the technical problems that a large number of no-load sections exist in the scraper conveyor and the workload of a later crusher is large are effectively solved.

Description

Ore transmission device based on image processing

Technical Field

The invention belongs to the field of image generation and processing, particularly relates to an ore transmission device based on image processing, and particularly relates to an ore transmission device based on image generation and processing technology.

Background

At present, the conventional ore transmission ore generally adopts manual monitoring or does not have monitoring, and a pretreatment process is not carried out, so that the workload of the jaw crusher in the later period is large, and the jaw crusher has frequent faults. In addition, in the transmission process, in the traditional operation mode, the scraper conveyer has a large number of no-load sections, and the conveying belt is not effectively utilized, so that the cost is high, and the transmission efficiency is low.

For example, gold deposits in the north sea area of the san shan island are located in mineral forming zones of the san shan island in northwest of the jiao east, and then an exploitation process is carried out, in the exploitation process, the influences of the seabed on the pressure, vibration and the like of a mine need to be considered, and in order to guarantee the ore of the mine, the ore transportation is realized through a scraper conveyor.

Disclosure of Invention

In view of the above technical problem, the technical problem to be solved by the present invention is to provide an image processing based ore transfer device, so as to effectively reduce the workload of a jaw crusher and reduce the idle section of a scraper conveyor.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

in order to solve the technical problem of long-time no-load operation of the scraper conveyors, the invention designs an ore transmission assembly, which comprises the scraper conveyors arranged in sections, wherein a differential scraper conveyor is arranged between at least one group of the section scraper conveyors;

as a conventional design, a crusher is arranged at the output end of a scraper conveyor, a collecting conveyor belt is connected to the output end of the crusher, a jaw crusher is arranged at the output end of the collecting conveyor belt, and a sorter is arranged at the output end of the jaw crusher;

as a core improvement point, in order to solve the problem that the scraper conveyor has a large number of no-load sections, the speed difference is skillfully utilized to realize ore accumulation, and particularly, the differential scraper conveyor comprises circulating drive belts arranged in pairs; side deflector rods are distributed on the outer side of the circular driving belt, and a scraper circulating belt is sleeved on the circular driving belt; a gap upper jacking crank shaft positioned below the ascending section is arranged in the scraper conveyor and/or the scraper circulating belt; the circulating driving belt rotates forwards in a single direction;

in order to reduce ore stacking and disperse ore, a clearance support is arranged at the side part of the circulating drive belt, a rotating eccentric rotating shaft is arranged on the clearance support, and a rotating shaft part of a swinging crank is hinged on the clearance support,

in order to reduce power consumption, a longitudinal guide rail groove is longitudinally arranged on one side of the eccentric rotating shaft, a sliding block component longitudinally slides in the longitudinal guide rail groove, and a limiting baffle part is arranged in the longitudinal guide rail groove and used for limiting the upward elevation height of the sliding block component; the end part of the sliding block component is provided with an eccentric process frame, the lower end of the eccentric process frame is connected with a lifting wedge block through a spring rod, the end part of the lifting wedge block is hinged with a one-way swinging baffle, and the one-way swinging baffle is used for intermittently shifting a side shifting lever.

As a further improvement of the technical scheme:

in order to realize effective separation of ores, the crusher comprises a swinging crushing bottom plate, a gantry frame body is arranged above the swinging crushing bottom plate, a buffer spring is arranged at the lower part of the swinging crushing bottom plate, a lower pressing frame with a process inclined plane is arranged on a cross beam of the gantry frame body, and a crushing head is arranged at the lower end of one side of the lower pressing frame;

collecting the conveyor belt, wherein the conveyor belt with a guide plate is adopted; the conveyor belt with the guide plate is horizontally or obliquely arranged, and the conveyor belt with the guide plate is matched with harrow claws for separating ores larger than a set shape.

As a further improvement of the technical scheme: the sorter comprises a material guide sleeve arranged at an outlet at the lower end of the jaw crusher, and staggered bidirectional opposite compression roller sets are arranged on the side wall of the material guide sleeve in a vertically layered manner;

the guide sleeve is provided with a large-end inlet of a swinging swing frame body below, when the guide sleeve is in no-load, a small-end outlet of the swinging frame body faces downwards, a counterweight limiting seat is arranged at the lower end of the small-end outlet, a sliding push seat is arranged on the swinging frame body in a sliding manner, a traction seat used for passing through a traction cable is arranged on one side of the small-end outlet, and a push plate is arranged on the lower portion of the sliding push seat and used for cleaning attachments stored on the swinging frame body.

As a further improvement of the technical scheme: in order to realize the identification of the size and the position of the ore, a visual sensor is arranged on the scraper conveyor and/or the differential scraper conveyor; wherein the vision sensor comprises an industrial video camera and/or a thermal imaging camera; the ore is conveyed on the scraper conveyor in a vibration mode, so that the position of the ore is changed continuously during conveying, and image data collection of different angles can be carried out on the ore.

In order to monitor the weight of the conveyed ore, a gravity sensor is arranged on the scraper conveyor and/or the differential scraper conveyor.

In order to enlarge the protection range, realize the remote identification of the ore, avoid the transmission of the massive ore and reduce the idle stroke section, the invention adopts an ore transmission device based on image processing, which comprises an ore transmission assembly; the ore transmission assembly is provided with an internet of things;

visual sensors are arranged on the scraper conveyor and/or the differential scraper conveyor; wherein the vision sensor comprises an industrial video camera and/or a thermal imaging camera; the ore is conveyed on the scraper conveyor in a vibrating manner, so that the position of the ore is continuously changed in the conveying process, and image data acquisition of different angles can be performed on the ore;

aiming at the Internet of things, the sensing layer comprises an industrial camera and/or a thermal imaging camera which are arranged at a fixed distance along the ore transmission direction and are used for carrying out image acquisition on the transmitted ore and carrying out image processing; the gravity sensor is used for sensing the weight change of ore on the scraper conveyor; in the network layer, the internet, the local area network and/or the Bluetooth for transmitting image data and/or weight information are/is arranged; at an application layer, a background head station is arranged; and the background master station is used for correspondingly setting the number of mines and performing data transmission and image processing with the upper computer.

The jaw crusher has the beneficial effects that a, the jaw crusher is prevented from being clamped by large ores through the prefabricated crusher, and the working load of the jaw crusher is reduced; b, monitoring of ores in the section is achieved by adopting an image recognition technology, uniform conveying of the ores in the section is guaranteed, and uneven arrangement of compactness of the ores is avoided; c, speed adjustment is realized through clearance type traction, effects of idle stroke fast retreating and load slow advancing are realized through a slider crank structure, one-way driving is realized through a wedge and a baffle, and friction force generated by the load exists; d, aiming at the large ores collected in the previous process, according to the arrival time of the ores, the method realizes fixed-point crushing; e, realizing centralization through a lower pressure frame, pressing down and crushing the crushing head through hydraulic pressure or a flywheel and other conventional modes, and realizing cleaning output through vibration aiming at adhesion generated by crushing; f, a rake claw is matched with the conveying belt and used for separating ores larger than a set shape; g, a staggered bidirectional counter-pressure roller set 35; thus realizing multi-directional crushing and avoiding the existence of long-strip-shaped ores; h, realizing unpowered separation through components such as a swinging frame body and the like, and lightening the burden of subsequent separation; j, the invention can realize the realization of the approximate appearance of the ore, thereby realizing the recognition of the large ore, avoiding the clamping of the jaw crusher caused by the overlarge block head, improving the crushing efficiency, observing the distribution density of the ore in the output process through the processing of the collected picture, and reducing the idle stroke range of the no-load by adjusting the speed of the corresponding segmented scraper conveyor; k, because different ore caloric content is different, and the ore is inside different with boundary department heat, through the regional discernment of thermal imaging to heat, can realize effectively assisting industry camera, reduce lighting apparatus's use consumption, make things convenient for the boundary to divide.

Drawings

Fig. 1 is a schematic diagram of an ore transportation and use structure of the invention.

Fig. 2 is a schematic of the differential flight conveyor configuration of the present invention.

Fig. 3 is a schematic diagram of the structure of the crusher part of the present invention.

Fig. 4 is a schematic view of the construction of the gap upper crown crank axle of the present invention.

FIG. 5 is a schematic view showing the structure of the blade endless belt of the present invention.

Fig. 6 is a schematic view of the structure of the eccentric rotary shaft of the present invention.

Fig. 7 is a schematic structural view of the counterweight limiting seat of the present invention.

Fig. 8 is a block diagram of the internet of things of the present invention.

Wherein: 9. A differential scraper; 10. a scraper conveyor; 11. a crusher; 12. collecting the conveyor belt; 13. a jaw crusher; 14. a sorter; 15. a circulating drive belt; 16. a side deflector rod; 17. pushing the crank shaft on the gap; 18. a scraper circulating belt; 19. a clearance support; 20. an eccentric rotating shaft; 21. a swing crank; 22. a longitudinal guide rail slot; 23. a slider member; 24. a limit baffle part; 25. an eccentric technological frame; 26. lifting the wedge block; 27. a unidirectional swing baffle; 28. a gantry frame body; 29. swinging the crushing bottom plate; 30. a buffer spring; 31. a pressing frame; 32. a process bevel; 33. a pulverizing head; 34. a conveyor belt with a guide plate; 35. a bidirectional counter-pressure roller set; 36. swinging the frame body; 37. a large end inlet; 38. a small end outlet; 39. a counterweight limiting seat; 40. a traction seat; 41. a traction wire rope; 42. a sliding push seat; 43. a push plate.

Detailed Description

As shown in fig. 1-8, the ore transfer assembly of this embodiment includes segmented scraper conveyors 10, with differential scrapers 9 disposed between at least a set of segmented scraper conveyors 10; this section may be used alone or in combination with graphics processing. The flight conveyor of fig. 1 may be one or more, which may be interpenetrated between other equipment for process engagement.

As shown in fig. 1, as a general embodiment, a crusher 11 is provided at an output end of a scraper conveyor 10, a collection conveyor 12 is connected to an output end of the crusher 11, a jaw crusher 13 is provided at an output end of the collection conveyor 12, and a sorter 14 is provided at an output end of the jaw crusher 13. It avoids the bold ore to block jaw breaker through prefabricated breaker, reduces its work load.

A gravity sensor, an industrial camera and/or a thermal imaging camera are/is arranged on the scraper conveyor 10 and/or the differential scraper 9; thereby realize the control of the ore in the district section, guarantee that the transport of the ore in the district section is even, avoid the inhomogeneous arrangement of ore compactness.

As an example of the implementation of the differential mode, as shown in fig. 2, 4-6, a modification used alone or in combination, the differential scraper 9 comprises endless drive belts 15 arranged in pairs; a side deflector rod 16 is distributed on the outer side of the circular driving belt 15, and a scraper circular belt 18 is sleeved on the circular driving belt 15; a gap upper jacking crank shaft 17 positioned below the upper run is arranged in the scraper conveyor 10 and/or the scraper circulating belt 18; the circulating driving belt 15 rotates forwards in a single direction;

a clearance support 19 is arranged at the side part of the circulation driving belt 15, a rotating shaft part which is provided with an eccentric rotating shaft 20 rotating and is hinged with a swing crank 21 is arranged on the clearance support 19,

a longitudinal guide rail groove 22 is longitudinally arranged on one side of the eccentric rotating shaft 20, a sliding block part 23 longitudinally slides in the longitudinal guide rail groove 22, and a limiting baffle part 24 is arranged on the longitudinal guide rail groove 22 and used for limiting the upward elevation height of the sliding block part 23; an eccentric technological frame 25 is arranged at the end part of the sliding block component 23, a lifting wedge block 26 is connected to the lower end of the eccentric technological frame 25 through a spring rod, a one-way swinging baffle 27 is hinged to the end part of the lifting wedge block 26, and the one-way swinging baffle 27 is used for intermittently shifting the side shifting lever 16.

The speed is adjustable through clearance type traction, the effects of idle stroke fast-backing and load slow-advancing are realized through a slider crank structure, unidirectional driving is realized through the wedge and the baffle, and due to the existence of friction force generated by the load, a ratchet wheel and pawl unidirectional control part can be omitted in practical use, so that the structure is simplified.

As shown in fig. 3 and 7, as an example of processing the large ore, the present process realizes the fixed-point crushing of the large ore collected in the previous process according to the arrival time of the ore, the crusher 11 includes a swinging crushing bottom plate 29, a gantry 28 is arranged above the swinging crushing bottom plate 29, a buffer spring 30 is arranged at the lower part of the swinging crushing bottom plate 29, a lower press frame 31 with a process inclined plane 32 is arranged on the cross beam of the gantry 28, and a crushing head 33 is arranged at the lower end of one side of the lower press frame 31;

realize righting through the undercarriage, smash the head and push down through conventional modes such as hydraulic pressure force or flywheel and smash, to the adhesion that smashes the production, realize clearing up the output through the vibration.

The collection conveyor 12, which uses a conveyor 34 with guide plates; the conveyor belt 34 with guide plates is arranged horizontally or obliquely, and the conveyor belt 34 with guide plates is provided with rakes for separating ore larger than a set profile.

The sorter 14 comprises a material guide sleeve arranged at an outlet at the lower end of the jaw crusher 13, and staggered bidirectional opposite compression roller sets 35 are arranged on the side wall of the material guide sleeve in an up-down layered mode; therefore, multi-directional crushing is realized, and the existence of long-strip-shaped ores is avoided.

A big end inlet 37 of a swinging frame body 36 is arranged below the material guide sleeve, a small end outlet 38 of the swinging frame body 36 faces downwards when the material guide sleeve is in idle load, a counterweight limiting seat 39 is arranged at the lower end of the small end outlet 38, a sliding push seat 42 is arranged on the swinging frame body 36 in a sliding mode, a traction seat 40 used for passing through a traction steel cable 41 is arranged on one side of the small end outlet 38, and a push plate 43 is arranged on the lower portion of the sliding push seat 42 and used for cleaning attachments stored on the swinging frame body 36. The unpowered separation is realized, and the burden of subsequent separation is reduced. The sliding push seat 42 is an improved part and only needs small power, and the track needs to be fully sealed, so that sundries and dust are prevented from entering the track.

As shown in fig. 1 to 8, as an embodiment of image recognition of a mine, the image processing control method of the present embodiment includes the following steps;

firstly, acquiring and processing images, namely regularly shooting real-time images of ores on a scraper conveyor by a vision sensor within a set distance, and acquiring the images and the boundary of the scraper conveyor together; since the conveyor boundaries are fixed, the approximate profile of the ore can be calculated from it.

Then, processing a cutting image, and cutting according to the image pixel data and a set threshold value to obtain a required area; therefore, irrelevant areas are removed, and the denoising workload is reduced;

secondly, processing the regional image, namely processing the regional image by changing regional correction and filtering and screening characteristics after aiming at a required region so as to obtain the boundary of ore in a target regional image, and performing conventional processing methods such as image denoising processing, image gray processing, image binarization processing and the like to realize numerical processing;

thirdly, setting the optimal ore appearance of the jaw crusher according to the parameters of the matched jaw crusher and storing the optimal ore appearance as a prestored image boundary;

in order to subtract the workload of a subsequent jaw crusher, a scheme I is designed, comparison image processing is carried out based on the shape and size of ores, the transverse boundary of a scraper conveyor is taken as a reference object, the image boundary characteristic value of the ores in the target area image is extracted and compared with the boundary of a prestored image, if the boundary of the ores in the target area image is smaller than the boundary of the prestored image, the shape of the ores is considered to meet the requirement, if the boundary of the ores in the target area image is larger than the boundary of the prestored image, the ores are considered to fail to meet the requirement, and a rake claw arranged on the scraper conveyor is started to take the ores out of the scraper conveyor for additional crushing processing or crushing through a crusher 11; therefore, the prejudgment of the ore size is realized, the jaw crusher is prevented from being clamped due to overlarge block head, the crushing efficiency is improved, a rake claw diagram is not shown, the technology related to the invention is mainly described because the rake claw diagram is common knowledge, and the conventional or unrelated technologies such as mining equipment, the jaw crusher, an air duct, supporting equipment and the like are omitted.

Further, the conveying compactness of the ore on the scraper conveyor is set and stored as a compactness distribution reference image according to the parameters of the scraper conveyor, or the compactness distribution reference image may be digitized and quantified as a parameter ratio k of the empty area of the scraper conveyor in unit length to the total area corresponding to the unit length, and the unit length is preferably 1 meter.

As a matching scheme, in order to increase the distribution compactness of ores on a scraper conveyor and reduce the generation of an idle section, a scheme II is designed, image processing is carried out based on the distribution compactness of the ores on the scraper conveyor, the image boundary characteristic value of the ores in a target area image is extracted by taking the transverse boundary and the longitudinal boundary of the scraper conveyor as reference objects, and compared with a compactness distribution reference image, if the compactness of the ores in the target area image is smaller than the lower limit of the compactness distribution reference image, the scraper conveyor at the rear stage is decelerated or intermittently stopped, so that energy is saved, and the compactness of the ore distribution is improved by utilizing the speed difference. In addition, whether the scraper conveyor is overloaded or not can be sensed through the gravity sensor, if the scraper conveyor is overloaded, the scraper conveyor at the rear section is accelerated, so that the distance between ores is increased, and the load of the single scraper conveyor is reduced. Because the traditional conveyor works continuously and continuously, the energy consumption is high, because the mined ores are not output continuously, long-distance intervals or local accumulation can be generated in the output process, the distribution density of the ores is observed in the output process through processing collected pictures, the idle stroke range is reduced by adjusting the speed of the corresponding segmented scraper conveyor, and the compactness refers to the compactness distributed on a belt instead of the material of the ores.

The boundary is obtained through image comparison processing, and in order to improve the processing quality, the method can be matched with means such as lighting, increment and the like, so that the identification effect is improved.

In order to improve the efficiency, as a further extension, the next research of the invention is to realize the identification through thermal imaging, because different ores have different heat contents and the heat inside the ores is different from that at the boundary, through the identification of a heat area, the effective auxiliary industrial camera can be realized, the use power consumption of lighting equipment is reduced, and the boundary division is convenient. Before the image comparison processing, the following steps are executed, firstly, thermal imaging image processing is carried out, the obtained thermal imaging image is matched with an outline image shot by an industrial camera, and ore identification is carried out according to thermal imaging distribution; then, continuous image processing, namely continuously photographing ores within a set distance according to thermal imaging image processing identification, splicing to obtain characteristics, and extracting an approximate image of a thermal imaging area; thereby realizing the understanding of the ore conveying condition of the section.

The visual sensor comprises an industrial camera, and the thermal imaging camera is the next improvement and is ready to be applied to coal mining; the ore carries out vibratory feed on scraper conveyor to make the ore constantly change the position in carrying, so that carry out the image data acquisition of different angles to the ore, through collision and the vibration influence between the ore, realize the ore constantly transform position, as long as there is the uncomfortable check of a direction, think its appearance too big promptly, need the precomminution.

As shown in fig. 8, as a hardware structure of the supporting method, the concrete application landing is realized by means of a scraper conveyor and a supporting internet of things;

aiming at the Internet of things, the sensing layer comprises an industrial camera and/or a thermal imaging camera which are arranged at a fixed distance along the ore transmission direction and are used for carrying out image acquisition on the transmitted ore and carrying out image processing; the gravity sensor is used for sensing the weight change of ore on the scraper conveyor; in the network layer, the Internet, the local area network and/or the Bluetooth for transmitting image data and/or weight information are/is provided; at an application layer, a background head station is provided; and the background master station is used for correspondingly setting the number of mines and performing data transmission and image processing with the upper computer.

As a process of the mine work, in conjunction with fig. 1-8, the image processing control-based process of the present embodiment is by means of an ore conveyance device based on an image processing control method; the following processes are performed;

s1, detecting underground gas concentration through an oxygen concentration detector and a methane concentration sensor, detecting pressure change of a well wall through a pressure sensor, detecting vibration frequency and amplitude of the well wall through a vibration sensor, and forecasting information through collected water level geology;

s2, judging whether underground operation is performed or not according to the acquired data meeting a set threshold;

s3, if underground operation can be carried out, manual work and/or equipment enter can be carried out, and tunneling or mining can be carried out;

s4, conveying the ore to be investigated and mined to a scraper conveyor 10;

s5, sensing the weight change of the upper section of the corresponding scraper conveyor 10 and/or the differential scraper conveyor 9 through a visual sensor and/or a gravity sensor, and when the gravity is greater than a set threshold value, intermittently advancing the differential scraper conveyor 9 for a set distance;

s6, detecting the granularity of the ore by a visual sensor, and starting a crusher 11 to press down to crush the ore when the granularity is larger than a set threshold value;

s7, guiding by the collecting conveyor belt 12;

s8, crushing the ore by using a jaw crusher 13;

s9, classifying and screening the roller pressing crushed particles.

In S5, the intermittent ejection crank shaft 17 is intermittently ejected to different positions of the upward section, so that the ore wriggles; in S5, first, when the ore entering the scraper endless belt 18 is sensed by a gravity sensor or an industrial camera to reach a set threshold; then, the motor drives the eccentric rotating shaft 20 to rotate, so that the swinging crank 21 lengthens or shortens in an accelerated manner, and the lifting wedge block 26 passes through the side shift lever 16 through the one-way swinging baffle plate 27 to reach the stroke end; secondly, the lower parts of the one-way swinging baffle 27 and the lifting wedge 26 are inserted into the gap between the adjacent side shift levers 16; thirdly, the side shift lever 16 is shifted to move forward for a set distance through the one-way swing baffle 27 and the lower part of the lifting wedge block 26;

in S6, first, the lower press frame 31 is pressed down to both side walls of the swing crushing base plate 29 so that the swing crushing base plate 29 becomes a horizontal state; then, the crushing head 33 performs hammering and pressing on the ore which is accumulated on the swing crushing bottom plate 29 and is larger than the set shape; secondly, a picture image is shot by a matched industrial camera to observe the ore crushing condition, if the ore meets the set requirement, the lower pressing frame 31 is lifted, the swinging crushing bottom plate 29 swings downwards under the gravity to output the ore, the buffering spring 30 generates oscillation to output the ore attached to the swinging crushing bottom plate 29 in an oscillating way, and the upper swinging stroke is limited by the process inclined plane 32;

in S9, first, the crushed ore of the bidirectional opposed roller set 35 subjected to the two-way opposed rolling falls into the large-end inlet 37, and then is output through the small-end outlet 38; when the appearance of falling ore is larger than that of the small-end outlet 38 and is blocked, the ore in the swing frame body 36 is continuously accumulated, so that the gravity center is close to the large-end inlet 37, the large-end inlet 37 faces downwards, the ore falls into the secondary crushing process under the action of gravity, meanwhile, the sliding push seat 42 moves downwards under the action of gravity, and the push plate 43 cleans the ore; then, the traction base 40 pulls the sliding push base 42 toward the small-end outlet 38 through the traction cable 41, so that the center of gravity after idling moves to the small-end outlet 38, and then releases the traction cable 41, so that the small-end outlet 38 sinks, and at the same time, the sliding push base 42 sinks.

The present invention has been described in sufficient detail for clarity of disclosure and is not exhaustive of the prior art.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; it is obvious as a person skilled in the art to combine several aspects of the invention. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. The technical contents not described in detail in the invention are all known technologies.

Claims

1. The utility model provides an ore transmission device based on image processing which characterized in that: comprises an ore conveying component; the ore transmission assembly is provided with an internet of things;

the ore conveying assembly comprises segmented scraper conveyors (10), and a differential scraper conveyor (9) is arranged between at least one group of segmented scraper conveyors (10);

the output end of the scraper conveyor (10) is provided with a crusher (11), the output end of the crusher (11) is connected with a collecting conveyor belt (12), the output end of the collecting conveyor belt (12) is provided with a jaw crusher (13), and the output end of the jaw crusher (13) is provided with a sorter (14);

visual sensors are arranged on the scraper conveyor (10) and the differential scraper conveyor (9); the ore is conveyed on the scraper conveyor (10) in a vibration mode, so that the position of the ore is changed continuously during conveying, and image data acquisition of different angles can be carried out on the ore;

aiming at the Internet of things, the sensing layer comprises an industrial camera and/or a thermal imaging camera which are arranged at a fixed distance along the ore transmission direction and are used for carrying out image acquisition on the transmitted ore and carrying out image processing; a gravity sensor for sensing ore transfer means based on image processing of ore weight changes on the scraper conveyor (10); when a vision sensor is adopted, in the image acquisition processing, the vision sensor acquires the ore real-time image on the scraper conveyor (10) and the boundary of the scraper conveyor (10) at regular time within a set distance;

setting the optimal ore appearance of the jaw crusher (13) according to the parameters of the matched jaw crusher (13) and storing the optimal ore appearance as a prestored image boundary;

and comparing the image based on the size of the ore appearance, taking the transverse boundary of the scraper conveyor (10) as a reference object, extracting the image boundary characteristic value of the ore in the target area image, comparing the image boundary characteristic value with the prestored image boundary, if the ore boundary in the target area image is smaller than the prestored image boundary, determining that the ore appearance meets the requirement, and if the ore boundary in the target area image is larger than the prestored image boundary, determining that the ore cannot meet the requirement, and starting a rake claw arranged on the scraper conveyor (10) to take the ore out of the scraper conveyor (10) for additional crushing treatment or crushing by a crusher (11).

2. The image processing based ore transfer device of claim 1, wherein: according to the parameters of a matched scraper conveyor (10), the conveying compactness of the ore on the scraper conveyor (10) is set and stored as a compactness distribution reference image, and the compactness distribution reference image is quantized into a parameter ratio k of the no-load area of the scraper conveyor belt in unit length to the total area corresponding to the unit length;

and comparing the image processing based on the ore distribution compactness on the scraper conveyor (10), extracting the image boundary characteristic value of the ore in the target area image by taking the transverse boundary and the longitudinal boundary of the scraper conveyor (10) as reference objects, and comparing the image boundary characteristic value with a compactness distribution reference image or parameter ratio k, wherein if the ore compactness of the target area image is less than the lower limit of the compactness distribution reference image, the scraper conveyor (10) at the later stage is decelerated or intermittently stopped.

3. The image processing based ore transfer device of claim 2, wherein: in the network layer, the Internet, the local area network and/or the Bluetooth for transmitting image data and/or weight information are/is provided; at an application layer, a background head station is provided; and the background master station is used for correspondingly setting the number of mines and performing data transmission and image processing with the upper computer.

4. The image processing based ore transfer device of claim 2, wherein: the vision sensor includes an industrial video camera and/or a thermal imaging camera.

5. The image processing based ore transfer device of claim 2, wherein: in thermal imaging image processing based on a thermal imaging camera, matching processing is carried out on an obtained thermal imaging image and an outline image shot by an industrial camera, and ore identification is carried out according to thermal imaging distribution.

6. The image processing based ore transfer device of claim 1, wherein: the differential scraper (9) comprises circulating drive belts (15) arranged in pairs; a side deflector rod (16) is distributed on the outer side of the circular driving belt (15), and a scraper circulating belt (18) is sleeved on the circular driving belt (15); a gap upper jacking crank shaft (17) positioned below the ascending section is arranged in the scraper conveyor (10) and/or the scraper circulating belt (18); the circulating driving belt (15) rotates forwards in a unidirectional way;

a clearance support (19) is arranged at the side part of the circulating drive belt (15), a rotating shaft part which is provided with a rotating eccentric rotating shaft (20) and is hinged with a swinging crank (21) is arranged on the clearance support (19),

a longitudinal guide rail groove (22) is longitudinally formed in one side of the eccentric rotating shaft (20), a sliding block component (23) longitudinally slides in the longitudinal guide rail groove (22), and a limiting baffle plate part (24) is arranged in the longitudinal guide rail groove (22) and used for limiting the upward pitch height of the sliding block component (23); an eccentric process frame (25) is arranged at the end part of the sliding block component (23), a lifting wedge block (26) is connected to the lower end of the eccentric process frame (25) through a spring rod, a one-way swing baffle (27) is hinged to the end part of the lifting wedge block (26), and the one-way swing baffle (27) is used for intermittently shifting the side shifting rod (16).

7. The image processing based ore transfer device of claim 1, wherein: the crusher (11) comprises a swinging crushing bottom plate (29), a gantry frame body (28) is arranged above the swinging crushing bottom plate (29), a buffer spring (30) is arranged at the lower part of the swinging crushing bottom plate (29), a lower pressing frame (31) with a process inclined plane (32) is arranged on a cross beam of the gantry frame body (28), and a crushing head (33) is arranged at the lower end of one side of the lower pressing frame (31);

a collection conveyor belt (12) which adopts a conveyor belt (34) with a guide plate; the conveyor belt (34) with the guide plates is horizontally or obliquely arranged, and the conveyor belt (34) with the guide plates is matched with the harrow claws for separating ore with a shape larger than a set shape.