Automatic identification and sorting system and method for fused magnesite

Abstract

The invention provides an automatic identification and sorting system for fused magnesite, and belongs to the technical field of fused magnesite sorting equipment.The automatic identification and sorting system comprises a fused magnesite lump crushing and screening unit and a fused magnesite image collecting and sorting unit, the fused magnesite lump crushing and screening unit comprises a feeding machine, a crusher and a screening machine, the crusher is arranged below the feeder, a first conveying mechanism is arranged between a discharging port of the crusher and a feeding port of the screening machine, and a second conveying mechanism is arranged at a discharging port of the screening machine. The fused magnesia image acquisition and sorting unit comprises a plowshare mechanism, two electronic cameras, two groups of grading gas-jet sorting devices and two groups of grading hoppers. The device has the functions of accurately identifying the grade of the fused magnesite and accurately sorting the fused magnesite, so that the sorting efficiency and accuracy are improved, and the problem that the health of workers is affected due to the fact that the workers depend on experience and are in a severe working condition environment for a long time is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of electrically fused magnesia sorting equipment, and particularly relates to an electrically fused magnesia automatic identification and sorting system and method. BACKGROUND

[0002] At present, the existing electrically fused magnesia sorting process is that the electrically fused magnesia sintered by a kiln needs to be cooled, then mechanically shelled and crushed, and then sorted by workers according to the crystallization state and color of the electrically fused magnesia in the magnesia block, the distribution of impurities, and the shape, size and distribution of pores, so as to obtain electrically fused magnesia of different grades.

[0003] However, this completely manual sorting method is prone to fatigue after a long time of work, and cannot guarantee accurate sorting, which leads to the loss of valuable minerals and the waste of resources, and has the problems of low sorting efficiency and high labor intensity. In addition, the harsh working conditions of high temperature and high dust seriously harm the health of workers.

[0004] Therefore, there is an urgent need for a system capable of automatically identifying the grade of electrically fused magnesia and sorting. SUMMARY

[0005] Based on the above technical problems, the present application aims to provide an electrically fused magnesia automatic identification and sorting system and method, which has the functions of accurately identifying the grade of electrically fused magnesia and accurately sorting, thereby improving the sorting efficiency and accuracy, and solving the problems of relying on the experience of workers and the influence of long-term work in harsh working conditions on the health of workers.

[0006] The specific technical scheme is as follows: An electrically fused magnesia automatic identification and sorting system, comprising: an electrically fused magnesia lump crushing and screening unit and an electrically fused magnesia image acquisition and sorting unit, the electrically fused magnesia lump crushing and screening unit comprising a feeder, a crusher and a screening machine, the crusher being arranged below the feeder, and a first conveying mechanism being arranged between the discharge port of the crusher and the feeding port of the screening machine, and a second conveying mechanism being arranged at the discharge port of the screening machine; the electrically fused magnesia image acquisition and sorting unit comprising a plow head mechanism, two electronic cameras, two sets of grading air jet sorting devices and two sets of grading hoppers, the plow head mechanism being arranged above the conveying belt of the second conveying mechanism through a mounting bracket, the two electronic cameras being respectively arranged on the two sides of the plow head mechanism, the two sets of grading air jet sorting devices and the two sets of grading hoppers being fixed on the mounting bracket, and the position of the nozzle of the grading air jet sorting device being opposite to the position of the grading hopper.

[0007] In addition, the electrically fused magnesia automatic identification and sorting system provided in the above technical scheme of the present application can further have the following additional technical features: In the above technical scheme, the grading air jet sorting device and the grading hopper are arranged behind the plow head mechanism and form a sorting area.

[0008] In the technical scheme, the hierarchical air jet sorting device comprises at least two air jet sorting mechanisms, each air jet sorting mechanism comprising a nozzle, a connecting pipe and an air pump, the nozzle, the connecting pipe and the air pump being connected in sequence, and the connecting pipe being provided with an electromagnetic valve.

[0009] In the technical scheme, the hierarchical hopper comprises at least two hoppers, and each hopper is opposite to the nozzle.

[0010] In the technical scheme, the nozzle is provided with a baffle at the nozzle outlet.

[0011] In the technical scheme, the screen of the screening machine has a pore size of 200 mm.

[0012] In the technical scheme, the screening machine is provided with a third conveying mechanism on one side, and the unqualified material after screening is returned to the crusher through the third conveying mechanism.

[0013] An automatic identification and sorting method of fused magnesia, comprising the following steps: S1: feeding, pouring the large fused magnesia into the feeder; S2: crushing, feeding the fused magnesia into the crusher through the feeder for crushing; S3: screening, feeding the crushed fused magnesia into the screening machine through the first conveying mechanism, screening the fused magnesia through the screening machine, and the fused magnesia with qualified particle size falling on the second conveying mechanism and the fused magnesia with unqualified particle size returning to the crusher through the third conveying structure; S4: arranging, dividing the fused magnesia on the conveying belt of the second conveying mechanism into two separate rows through the plow mechanism for subsequent sorting; S5: image acquisition and identification, acquiring the image of the fused magnesia through the electronic camera, and evaluating the grade of the fused magnesia through the image recognition system; S6: sorting, according to the evaluation result of the fused magnesia, when the fused magnesia moves to the hopper corresponding to the grade in the process of conveying the fused magnesia by the conveying belt, the corresponding air jet sorting mechanism is started to blow the fused magnesia into the hopper, so as to realize the automatic identification and sorting of the fused magnesia.

[0014] Compared with the prior art, the automatic identification and sorting system and method of fused magnesia have the beneficial effects that: 1. The electrically fused magnesia lumps are crushed, screened and then fall on the second conveying mechanism, and the electrically fused magnesia on the conveying belt of the second conveying mechanism is divided into two rows by the plow mechanism, ensuring that the two electronic cameras can fully cover the scanning of the electrically fused magnesia on the conveying mechanism, thereby collecting the images of the two rows of electrically fused magnesia in real time, and through the linkage design of the grading air jet sorting device and the grading hopper, the electrically fused magnesia of different grades is accurately sorted and collected according to the images collected by the electronic camera, realizing the functions of automatic identification and sorting, thereby improving the sorting efficiency and accuracy, and solving the problems of relying on the experience of workers and long-term work in harsh working conditions affecting the health of workers.

[0015] 2. The crushing, screening, image recognition and air jet sorting of electrically fused magnesia do not require manual intervention, realizing continuous and efficient automatic operation.

[0016] 3. The material on the conveying belt is divided into two rows by the plow mechanism to avoid stacking of the material, so that the camera can collect information, thereby improving the accuracy of sorting.

[0017] 4. During the conveying of electrically fused magnesia on the conveying belt, when the electrically fused magnesia of the corresponding grade moves to the position of the hopper of the corresponding grade, the air jet sorting mechanism opposite to the position of the hopper operates to blow the electrically fused magnesia into the hopper of the corresponding grade.

[0018] 5. A baffle is arranged at the nozzle of the spray head to avoid the situation that the gas sprayed by the spray head is too strong to blow the electrically fused magnesia around the target. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a flowchart of an electrically fused magnesia automatic identification and sorting system and method of the application; Figure 2 It is a structural diagram of an electrically fused magnesia automatic identification and sorting system of the application; Figure 3 It is a structural diagram of an electrically fused magnesia image acquisition and sorting unit of the application; Figure 4 It is a structural diagram of an air jet sorting structure of the application; Among them, Figures 2 to 4 The correspondence between the reference signs and the component names in the drawings is as follows: 10 feeder, 11 crusher, 12 screen, 13 first conveying mechanism, 14 second conveying mechanism, 15 plow mechanism, 16 electronic camera, 17 air jet sorting mechanism, 171 spray head, 172 connecting pipe, 173 air pump, 174 electromagnetic valve, 18 hopper, 19 baffle, 20 third conveying mechanism, 21 mounting bracket. DETAILED DESCRIPTION

[0020] The application will be further described below with reference to specific embodiments and accompanying drawings. Figures 1-4 The application will be further described below with reference to specific embodiments and accompanying drawings. Embodiment 1

[0021] An automatic identification and sorting system for fused magnesia, as shown in the drawings, comprises a fused magnesia lump crushing and screening unit and a fused magnesia image acquisition and sorting unit. Figures 1-4 The fused magnesia lump crushing and screening unit comprises a feeder 10, a crusher 11 and a screening machine 12, the crusher 11 is arranged below the feeder 10, a first conveying mechanism 13 is arranged between the discharge port of the crusher 11 and the feeding port of the screening machine 12, and a second conveying mechanism 14 is arranged at the discharge port of the screening machine 12.

[0022] The above structure is adopted, the large fused magnesia lump is poured into the feeder 10, the fused magnesia lump is sent into the crusher 11 by the feeder 10 for crushing, the crushed fused magnesia is conveyed to the screening machine 12 by the first conveying mechanism 13 for screening, the qualified fused magnesia after screening is conveyed by the second conveying mechanism 14, and the fused magnesia passes through the plow head mechanism 15 during the conveying process of the conveying belt of the second conveying mechanism 14, so that the mixed fused magnesia is divided into two rows, the images of the two rows of fused magnesia are acquired by the two electronic cameras 16 respectively, and after analysis by the image recognition system, the different grades of fused magnesia are collected into the corresponding grade of the grading hopper 18 by the cooperation of the grading air jet sorting device and the grading hopper 18, so as to realize the functions of automatic identification and sorting, improve the sorting efficiency and sorting accuracy, and solve the problems of relying on the experience of workers and long time in harsh working conditions affecting the health of workers.

[0023] Specifically, the material on the conveying belt is divided into two rows by the plow head mechanism 15 to avoid material stacking, so as to improve the accuracy of sorting.

[0024] Specifically, the screening machine 12 in the embodiment is a drum screening machine, the feeder 10 is a vibrating feeder, and the crusher 11 is a jaw crusher.

[0025] Specifically, the first, second and third conveying mechanisms in the embodiment each include a conveying table, a driving roller, a driven roller, a driving motor and a conveying belt, the driving roller is driven by the driving motor, and the conveying belt is driven under cooperation of the driven roller.

[0026] In the embodiment of the application, the grading air jet sorting device and the grading hoppers 18 are arranged behind the plough mechanism 15 and form a sorting area.

[0027] In the embodiment of the application, the grading air jet sorting device includes at least two air jet sorting mechanisms 17, each of which includes a nozzle 171, a connecting pipe 172 and an air pump 173, the nozzle 171, the connecting pipe 172 and the air pump 173 are connected in sequence, and the connecting pipe 172 is provided with an electromagnetic valve 174.

[0028] Through operation of the air pump 173, compressed gas is moved to the nozzle 171 through the connecting pipe 172 and sprayed out, so as to realize the purpose of spraying the fused magnesite to the corresponding hopper 18 by using the gas with pressure.

[0029] In the process of conveying the fused magnesite on the conveying belt of the second conveying mechanism 14, when the fused magnesite moves to the hopper 18 corresponding to the grade, the electromagnetic valve 174 of the air jet sorting mechanism 17 corresponding to the hopper 18 is opened, so that the compressed gas is sprayed out through the nozzle 171 and the fused magnesite is sprayed to the corresponding hopper 18, thereby realizing the purpose of grading and sorting collection.

[0030] In the embodiment of the application, the grading hoppers 18 include at least two hoppers 18, and the hoppers 18 are opposite to the nozzles 171 in position.

[0031] By making the hoppers 18 opposite to the nozzles 171 in position, it is convenient to spray the fused magnesite into the hoppers 18.

[0032] In the embodiment of the application, the nozzle 171 is provided with a baffle 19 at the nozzle opening.

[0033] By providing the baffle 19 at the nozzle opening of the nozzle 171, it is avoided that the gas sprayed out of the nozzle 171 is too strong to cause the fused magnesite around the target to be sprayed out.

[0034] In the embodiment of the application, the aperture of the screen of the screening machine 12 is 200 mm.

[0035] By designing the aperture of the screen to be 200 mm, the fused magnesite clumps are broken into fused magnesite block materials with a particle size of not greater than 200 mm, so as to facilitate subsequent air jet sorting operation.

[0036] In the embodiment of the present application, one side of the screening machine 12 is provided with a third conveying mechanism 20, and the unqualified material screened by the screening machine 12 is returned to the crusher 11 through the third conveying mechanism 20.

[0037] The screening machine 12 screens the crushed fused magnesia, and the qualified material in particle size falls onto the second conveying mechanism 14 and is sent to the sorting area, and the unqualified material in particle size is returned to the crusher 11 through the third conveying mechanism 20 and is crushed again.

[0038] An automatic identification and sorting method of fused magnesia, comprising the following steps: S1: feeding, pouring the large fused magnesia lumps into the feeder 10; S2: crushing, sending the fused magnesia lumps into the crusher 11 through the feeder 10 for crushing; S3: screening, sending the crushed fused magnesia into the screening machine 12 through the first conveying mechanism 13, screening the fused magnesia through the screening machine 12, and falling the qualified fused magnesia in particle size on the second conveying mechanism 14 and returning the unqualified fused magnesia in particle size to the crusher 11 through the third conveying mechanism 20; S4: arranging, dividing the fused magnesia on the conveying belt of the second conveying mechanism 14 into two separate rows through the plow head mechanism 15 for subsequent sorting; S5: image acquisition and identification, acquiring the image of the fused magnesia through the electronic camera 16, and evaluating the grade of the fused magnesia through the image recognition system; S6: sorting, according to the evaluation result of the fused magnesia, when the fused magnesia moves to the hopper 18 corresponding to the grade, starting the corresponding air blowing sorting mechanism 17 to blow the fused magnesia into the hopper 18, so as to realize the automatic identification and sorting of the fused magnesia. Embodiment 2:

[0039] The image recognition system is the fused magnesia image recognition and sorting system V1.0, through which the prediction probability of 98.5 fused magnesia can reach 99.9%, the prediction probability of 98 fused magnesia can reach 99.9%, the prediction probability of 97.5 fused magnesia can reach 99.4%, the prediction probability of 97 fused magnesia can reach 99.8%, the prediction probability of 96 fused magnesia can reach 99.7%, and the prediction probability of skin magnesia can reach 99.8%. The identification time of a single high calcium fused magnesia is 3 seconds, and the group identification time of 12 fused magnesias is 10 seconds.

[0040] Table 1: Identification result of fused magnesia 98.5 fused magnesia 98 fused magnesia 97.5 fused magnesia 97 fused magnesia 96 fused magnesia skin magnesia 99.9% 99.9% 99.4% 99.8% 99.7% 99.8% As can be seen from Table 1, the embodiment plays a significant role in the identification of the fused magnesia, and compared with the traditional manual identification method, basically solves the problem that the identification of the fused magnesia completely depends on the experience of workers. According to the output result of the image identification and sorting system V1.0 of the fused magnesia, the air jet sorting device corresponding to the material interval is used to send the fused magnesia into the corresponding grading hopper, so as to realize the automatic identification and sorting of the fused magnesia.

[0041] In the embodiment, one set of grading hoppers includes five hoppers for collecting 98.5 fused magnesia, 98 fused magnesia, 97.5 fused magnesia, 97 fused magnesia and 96 fused magnesia, and two sets of hoppers include ten hoppers in total, and the number of the air jet sorting mechanism is the same as that of the hoppers, and the positions are opposite.

[0042] In the description of the present application, the term "a plurality of" refers to two or more, unless otherwise explicitly limited, and the terms "upper", "lower", etc. indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "connection", "installation", "fixation" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An automated identification and sorting system for fused magnesia, characterized in that, include: The system includes an electrofused magnesia agglomerate crushing and screening unit and an electrofused magnesia image acquisition and sorting unit. The electrofused magnesia agglomerate crushing and screening unit comprises a feeder, a crusher, and a screening machine. The crusher is located below the feeder, and a first conveying mechanism is provided between the discharge port of the crusher and the inlet of the screening machine. A second conveying mechanism is provided at the discharge port of the screening machine. The electrofused magnesia image acquisition and sorting unit comprises a plow mechanism, two electronic cameras, two sets of grading air-jet sorting devices, and two sets of grading hoppers. The plow mechanism is mounted above the conveyor belt of the second conveying mechanism via a mounting frame. The two electronic cameras are respectively mounted on both sides of the plow mechanism. The two sets of grading air-jet sorting devices and the two sets of grading hoppers are all fixed on the mounting frame, and the nozzle position of the grading air-jet sorting device is opposite to the position of the grading hopper.

2. The automated identification and sorting system for fused magnesia according to claim 1, characterized in that, The grading air-jet sorting device and the grading hopper are both located behind the plow mechanism and form a sorting area.

3. The automated identification and sorting system for fused magnesia according to claim 1, characterized in that, The graded air-jet sorting device includes at least two air-jet sorting mechanisms, each air-jet sorting mechanism including a nozzle, a connecting pipe and an air pump, wherein the nozzle, the connecting pipe and the air pump are connected in sequence, and a solenoid valve is provided on the connecting pipe.

4. The automated identification and sorting system for fused magnesia according to claim 3, characterized in that, The grading hopper includes at least two hoppers, and the hoppers are positioned opposite the nozzle.

5. The automated identification and sorting system for fused magnesia according to claim 4, characterized in that, A baffle is provided at the nozzle of the nozzle.

6. The automated identification and sorting system for fused magnesia according to claim 1, characterized in that, The screen of the screening machine has a mesh size of 200mm.

7. The automated identification and sorting system for fused magnesia according to claim 1, characterized in that, A third conveying mechanism is provided on one side of the screening machine, through which unqualified materials after screening are returned to the crusher.

8. An automated identification and sorting method for fused magnesia, based on the automated identification and sorting system for fused magnesia described in claims 1-7, characterized in that, Includes the following steps: S1: Feeding, pour large lumps of fused magnesia into the feeder; S2: Crushing, the fused magnesia agglomerate is fed into the crusher by the feeder for crushing; S3: Screening. The crushed fused magnesia is fed into the screening machine through the first conveying mechanism. The fused magnesia is screened by the screening machine. The fused magnesia with qualified particle size falls onto the second conveying mechanism, and the fused magnesia with unqualified particle size returns to the crusher through the third conveying structure. S4: Arrangement, the fused magnesia on the conveyor belt of the second conveyor mechanism is divided into two separate columns by the plow mechanism for subsequent sorting; S5: Image acquisition and recognition. Images of fused magnesia are acquired using an electronic camera, and the grade of the fused magnesia is evaluated using an image recognition system. S6: Sorting. Based on the evaluation results of fused magnesia, during the process of conveying fused magnesia on the conveyor belt, when the fused magnesia moves to the hopper of the corresponding grade, the corresponding air-jet sorting mechanism is activated to spray the fused magnesia into the hopper, thereby realizing the automatic identification and sorting of fused magnesia.

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