A multi-stage photoelectric sorting machine for ore dressing

Abstract

The application is suitable for the technical field of sorting machines, and provides a multi-stage photoelectric sorting machine for ore dressing, which comprises a feeding box, a detection box, a collecting box, a dust removal system, a gas storage system, a sorting system, a feeding system, a hopper, a detection system and an identification system, and further comprises a screening mechanism and a cleaning mechanism; the screening mechanism can pre-sort the ores according to the sizes of the ores, so that ores of each particle size can enter the detection box separately, the detection system and the identification system can detect and identify the ores in the same particle size range, and thus ores with the same particle size and the same grade can be obtained, thereby meeting the demand for fine classification of ores; the cleaning mechanism can not only clean the dust adhered to the identification lens by means of gas injection and adjustment of the injection angle, so as to ensure that the identification lens always remains clean, but also can form an invisible gas curtain barrier outside the identification lens to block the suspended dust from approaching the identification lens, thereby ensuring the effectiveness of the identification link.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sorting machines, and particularly relates to a multi-stage photoelectric sorting machine for ore dressing. BACKGROUND

[0002] As an equipment for realizing accurate sorting of ores based on optical detection and electrical control, the photoelectric sorting machine has become the core equipment for sorting various minerals such as iron ore, copper ore, spodumene and mica, due to its high degree of automation, high sorting precision and no secondary pollution.

[0003] The existing photoelectric sorting machine is usually composed of seven core modules, namely a feeding system, a feeding system, a detection system, a sorting system, a collection system, a dust removal system and a gas storage system. The ore to be sorted enters the feeding box from the hopper and is conveyed to the detection box by the feeding belt. The detection system identifies the ore composition through the X-ray detector and captures the surface features of the ore through the recognition lens, and transmits the data to the control center. After the control center judges the ore grade, the high-pressure nozzle of the sorting system is driven to spray the ore into the corresponding collection box, and finally the ore sorting is completed.

[0004] Although the existing photoelectric sorting machine has realized automatic sorting, there are still some limitations in actual application:

[0005] Firstly, the feeding system of the existing photoelectric sorting machine directly introduces mixed particle size ores into the feeding belt. Since the particle size of the ore to be sorted differs greatly, small particle size ores are easily blocked by large particle size ores, resulting in that the detection system cannot obtain complete ore information. At the same time, the element signal intensity and surface features of different particle size ores present obvious differences. When the detection system judges according to the unified standard, problems such as misjudgment of high-grade small particle size ores as waste rock or confusion of ores with different particle sizes but same grade may occur, resulting in poor sorting precision of the sorting machine.

[0006] Secondly, the protection of the recognition lens of the existing photoelectric sorting machine mainly depends on the passive dust cover, which needs to be cleaned frequently. Dust is easily adhered to the surface of the lens, resulting in a decrease in the transmittance of the lens and blurred imaging, which causes detection failure.

[0007] Therefore, in view of the above status, it is urgent to develop a multi-stage photoelectric sorting machine for ore dressing to overcome the deficiencies in current actual application. SUMMARY

[0008] In view of the deficiencies in the prior art, the purpose of the embodiments of the present application is to provide a multi-stage photoelectric sorting machine for ore dressing to solve the problems in the background art.

[0009] To achieve the above purpose, the present application provides the following technical scheme:

[0010] A multi-stage photoelectric sorting machine for ore dressing, comprising a feeding tank, a detection tank, a collection tank, a dust removal system, a gas storage system, a sorting system, a feeding system and a hopper, a detection system and an identification system are respectively installed in the detection tank, the identification system is composed of an identification host, an identification mirror body and an identification lens, the detection system and the identification system are located above the feeding system, the sorting system is located at the bottom of the end of the feeding system, and the sorting system is located at the bottom of the end of the feeding system.

[0011] A screening mechanism, comprising a feeding pipe, a discharge pipe, a screening assembly and a rotating assembly, the feeding pipe and the discharge pipe are respectively installed on the inner walls of the two sides of the feeding tank, one end of the feeding pipe is communicated with the bottom of the hopper, one end of the discharge pipe extends to the outside of the feeding tank, the screening assembly is located between the feeding pipe and the discharge pipe and is rotatably connected with the feeding pipe and the discharge pipe respectively, the screening assembly is located directly above the feeding system, a plurality of screen holes with gradually changing diameters are axially formed in the screening assembly, and the rotating assembly is installed in the feeding tank.

[0012] A cleaning mechanism is installed on the inner wall of the top of the detection tank, one end of the cleaning mechanism extends to the outside of the detection tank and is connected with the gas storage system, and the other end of the cleaning mechanism is distributed circumferentially outside the identification lens.

[0013] As a further technical solution of the present application, the screening assembly comprises a screen cylinder, a conical sleeve and a spiral flow guide plate, the screen cylinder is inclinedly arranged between the feeding pipe and the discharge pipe, the screen cylinder is axially distributed with screen holes matched with the feeding system and having gradually changing diameters, the inner walls of the two ends of the screen cylinder are respectively installed on the outer walls of the feeding pipe and the discharge pipe through bearings, the conical sleeve is fixed on the inner walls of the two ends of the screen cylinder, the outer wall of one end of the conical sleeve is connected with the inner wall of the screen cylinder, the inner wall of the other end of the conical sleeve is matched with the annular groove formed on the outer wall of the feeding pipe and the discharge pipe respectively, the spiral flow guide plate is fixed on the inner wall of the screen cylinder, and the outer wall of one end of the screen cylinder is connected with the rotating assembly.

[0014] As a further technical solution of the present application, the rotating assembly comprises a rotating motor, a gear one and an annular gear, the rotating motor is fixed on the inner wall of the feeding tank, the gear one is fixed on the output end of the rotating motor, and the gear one is engaged with the annular gear fixed on the outer wall of the screen cylinder.

[0015] As a further technical solution of the present application, a feeding belt is arranged in the feeding system, a partition plate is vertically installed on the feeding belt, the partition plates are equidistantly distributed on the surface of the feeding belt along the outer contour of the feeding belt, a feeding channel is formed between two adjacent partition plates perpendicular to the running direction of the feeding belt, and the distribution number and distribution position of the feeding channel correspond to the distribution number and distribution position of the screen holes one by one.

[0016] As a further technical scheme of the present application, the cleaning mechanism comprises an air inlet pipe, a main body frame, a mounting sleeve, a lifting assembly, an adjusting assembly and a cleaning nozzle, the main body frame is fixed on the inner wall of the detection box, the bottom of the main body frame is distributed with mounting sleeves corresponding to the number and distribution position of the feeding channels, the bottom of the mounting sleeve is vertically slidably installed with an identification host, the bottom of the identification host is installed with an identification lens, one end of the lifting assembly is installed on the main body frame, the other end of the lifting assembly is connected with the outer wall of the identification host, one end of the adjusting assembly is installed on the outer wall of the identification lens, the other end of the adjusting assembly is connected with the outer wall of the mounting sleeve, the adjusting assembly is installed with the cleaning nozzle, the cleaning nozzle is circumferentially distributed on the outer side of the identification lens, and one end of the cleaning nozzle is connected with the gas storage system through the air inlet pipe.

[0017] As a further technical scheme of the present application, the lifting assembly comprises a lifting cylinder, a lifting frame, a connecting column and a connecting sleeve, the lifting cylinder is fixed on the main body frame, the output end of the lifting cylinder is fixed with the lifting frame, the lifting frame is connected with one end of the connecting column, and the other end of the connecting column is fixedly connected with the connecting sleeve fixed on the outer wall of the identification host.

[0018] As a further technical scheme of the present application, the adjusting assembly comprises an annular sleeve, a support one, a sliding ball one, a connecting rod, a sliding ball two, a support two and a fixing frame, the annular sleeve is fixed on the outer wall of the identification lens, the outer wall of the annular sleeve is circumferentially distributed with the support one, the support one is rotatably installed with the sliding ball one, the outer wall of the mounting sleeve is circumferentially distributed with the fixing frame, the fixing frame is rotatably installed with the support two, the support two is installed with the cleaning nozzle in the middle, one end of the support two is rotatably installed with the sliding ball two, the sliding ball two is located directly above the sliding ball one, and the sliding ball two is rotatably connected with the sliding ball one through the connecting rod.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The rotating assembly drives the screening assembly to rotate between the feeding pipe and the discharging pipe. The screening assembly can complete the screening of the ore particle size through rotation and the screen holes distributed thereon, so that the ores can fall on the feeding system in different sizes in turn, thereby realizing the pre-separation of the ores, i.e., separating the ores according to the size of the ores, reducing the technical pain point of low detection precision of mixed ores existing in the traditional sorting machine, so that the ores of each particle size can enter the detection box separately, the detection system and the recognition system can detect and recognize the ores in the same particle size range, thereby obtaining the color and composition element information of the ores, and transmitting the information to the control center, eliminating the interference problem of the detection signal caused by the particle size difference of the ores, and improving the separation quality and efficiency of the sorting machine; the control center drives the separation system according to the information, so that the separation system sprays the specified ores to the specified collection box through high-pressure spraying, thereby completing the multi-layer separation of the ores, so that the sorting machine can obtain ores of the same particle size and grade, meet the demand for fine classification of ores, reduce the separation time of ores, and further improve the separation quality and efficiency of the sorting machine;

[0021] The cleaning mechanism can not only clean the dust adhered to the recognition lens through gas injection and adjustment of the injection angle, ensure that the recognition lens always remains clean and accurately captures the detailed features of the ores, provide clear and complete image data for the recognition system, fundamentally avoid detection errors caused by dust shielding, and ensure the effectiveness of the recognition link, but also form an invisible gas curtain barrier outside the recognition lens. This barrier can block the dust suspended in the detection box from approaching the recognition lens, thereby reducing the contact opportunities of the dust and the recognition lens from the source, avoiding continuous adhesion of the dust, and compared with the traditional passive dust prevention, the gas curtain barrier can actively prevent dust, and does not need to be frequently disassembled and maintained, thereby maintaining the clean environment of the recognition lens for a long time and reducing detection problems caused by failure of the dust prevention component.

[0022] To make the structure features and effects of the present application clearer, the present application will be described in detail below in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure schematic view of the multi-stage photoelectric sorting machine for ore dressing provided by the embodiment of the present application is shown.

[0024] Figure 2 The structure sectional view of the multi-stage photoelectric sorting machine for ore dressing provided by the embodiment of the present application is shown.

[0025] Figure 3 The structure schematic view of the feeding system is shown. Figure 2 The structure schematic view of the feeding system is shown.

[0026] Figure 4 The structure schematic view of the feeding system is shown. Figure 2Structure diagram of the middle hopper and the screening mechanism.

[0027] Figure 5 For Figure 4 Structure exploded view of the middle screening mechanism.

[0028] Figure 6 For Figure 5 Structure sectional view of the middle sieve cylinder.

[0029] Figure 7 For Figure 2 Structure diagram of the middle cleaning mechanism.

[0030] Figure 8 For Figure 7 Structure bottom view of the middle cleaning mechanism and the identification system.

[0031] Figure 9 For Figure 8 Structure diagram of the middle lifting assembly and the adjusting assembly.

[0032] Figure 10 For the gas flow direction diagram of the cleaning mechanism in two working states; wherein a is the gas flow direction diagram of the cleaning mechanism when cleaning the dust adhered to the surface of the identification lens, and b is the gas flow direction diagram of the cleaning mechanism when isolating the dust outside the identification lens.

[0033] Figures: 100 - feed tank, 110 - hopper, 200 - detection tank, 210 - detection system, 220 - identification system, 221 - identification host, 222 - identification lens body, 223 - identification lens, 300 - collection tank, 400 - dust removal system, 500 - gas storage system, 600 - cleaning mechanism, 610 - air inlet pipe, 620 - main frame, 630 - mounting sleeve, 640 - lifting assembly, 641 - lifting cylinder, 642 - lifting frame, 643 - connecting column, 644 - connecting sleeve, 650 - adjusting assembly, 651 - annular sleeve, 652 - support one, 653 - sliding ball one, 654 - connecting rod, 655 - sliding ball two, 656 - support two, 657 - fixing frame, 660 - cleaning nozzle, 700 - feeding system, 710 - partition plate, 800 - screening mechanism, 810 - feeding pipe, 820 - discharging pipe, 830 - screening assembly, 831 - sieve cylinder, 832 - sieve hole, 833 - conical sleeve, 834 - flow guide plate, 840 - rotating assembly, 841 - rotating motor, 842 - gear one, 843 - ring gear, 850 - annular groove, 900 - sorting system. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0035] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0036] like Figures 1 to 10 As shown, a multi-stage photoelectric separator for mineral processing, provided as an embodiment of the present invention, includes a feeding box 100, a detection box 200, a collection box 300, a dust removal system 400, a gas storage system 500, and a separation system 900. The feeding box 100, the detection box 200, and the collection box 300 are fixedly connected in sequence. A feeding system 700 extending into the detection box 200 and the collection box 300 is installed inside the feeding box 100. A hopper 110 is installed on the top of the feeding box 100. The dust removal system 400 and the gas storage system 500 are both located outside the feeding box 100. The dust removal system 400 is connected to the feeding box 100 and the detection box 200 respectively and is used to filter the feeding box 100 and the detection box 500. Dust within the 200 is removed. The detection box 200 is equipped with a detection system 210 and an identification system 220. The detection system 210 preferably consists of an X-ray detector and a receiver. The identification system 220 preferably consists of an identification host 221, an identification mirror 222, and an identification lens 223. Both the detection system 210 and the identification system 220 are located above the feeding system 700. The collection box 300 is equipped with a sorting system 900 and a collection box. The sorting system 900 is located at the bottom of the end of the feeding system 700 and is connected to the gas storage system 500. The sorting system 900 preferably consists of a high-pressure nozzle and a conveying pipe. It also includes:

[0037] The screening mechanism 800 includes a feed pipe 810, a discharge pipe 820, a screening component 830, and a rotating component 840. The feed pipe 810 and the discharge pipe 820 are respectively installed on the inner walls of the two sides of the feeding box 100. One end of the feed pipe 810 is connected to the bottom of the hopper 110, and one end of the discharge pipe 820 extends to the outside of the feeding box 100. The screening component 830 is located between the feed pipe 810 and the discharge pipe 820 and is rotatably connected to both the feed pipe 810 and the discharge pipe 820. The screening component 830 is located directly above the feeding system 700. The screening component 830 has axially opened screen holes 832 with gradually changing apertures. The rotating component 840 is installed inside the feeding box 100, and one end of the rotating component 840 is connected to the outer wall of the screening component 830.

[0038] The hopper 110 guides the ore into the feeding pipe 810, the feeding pipe 810 guides the ore into the screening assembly 830, the rotating assembly 840 drives the screening assembly 830 to rotate between the feeding pipe 810 and the discharging pipe 820, and the screening assembly 830 can complete the screening of the ore particle size through rotation and the screen holes 832 distributed thereon, so that the ore can fall on the feeding system 700 according to different sizes, thereby realizing the pre-separation of the ore, i.e., the separation of the ore according to the size of the ore, reducing the technical pain point of low detection accuracy of mixed ore in the traditional sorting machine, so that the ore of each particle size can enter the detection box 200 alone, the detection system 210 and the identification system 220 can detect and identify the ore in the same particle size range, thereby obtaining the color and composition element information of the ore and transmitting it to the control center, eliminating the interference problem of the detection signal caused by the difference in the particle size of the ore, and improving the separation quality and efficiency of the sorting machine; the control center drives the separation system 900 according to the information, so that the separation system 900 sprays the specified ore to the specified collection box through high-pressure spraying, thereby completing the multi-layer separation of the ore, so that the sorting machine can obtain ore of the same particle size and grade, meet the demand for fine classification of the ore, reduce the separation time of the ore, and further improve the separation quality and efficiency of the sorting machine;

[0039] The cleaning mechanism 600 is installed on the inner wall of the top of the detection box 200, one end of the cleaning mechanism 600 extends to the outside of the detection box 200 and is connected with the gas storage system 500, and the other end of the cleaning mechanism 600 is distributed circumferentially outside the identification lens 223. The cleaning mechanism 600 can not only clean the dust adhered to the identification lens 223 through gas spraying and adjusting the spraying angle, but also ensure that the identification lens 223 always remains clean and accurately captures the detailed features of the ore, provides clear and complete image data for the identification system 220, fundamentally avoids detection errors caused by dust shielding, and guarantees the effectiveness of the identification link. The cleaning mechanism 600 can also form an invisible gas curtain barrier outside the identification lens 223, which can block the dust suspended in the detection box 200 from approaching the identification lens 223, thereby reducing the contact opportunity of the dust and the identification lens 223 from the source, avoiding continuous adhesion of the dust, and compared with the traditional passive dust prevention, the gas curtain barrier can realize active protection of the dust, and does not need to be frequently disassembled and maintained, thereby maintaining the clean environment of the identification lens 223 for a long time and reducing detection problems caused by failure of the dustproof parts.

[0040] As Figures 2 to 6As shown, as a preferred embodiment of the present application, the screening assembly 830 includes a screen cylinder 831, a conical sleeve 833 and a spiral guide plate 834, the screen cylinder 831 is obliquely arranged between the feed pipe 810 and the discharge pipe 820, the screen cylinder 831 is axially distributed with screen holes 832 matched with the feeding system 700 and with gradually changing hole diameters, the inner walls of both ends of the screen cylinder 831 are respectively mounted on the outer walls of the feed pipe 810 and the discharge pipe 820 through bearings, the conical sleeve 833 is fixed on the inner walls of both ends of the screen cylinder 831, the outer wall of one end of the conical sleeve 833 is connected with the inner wall of the screen cylinder 831, the inner wall of the other end of the conical sleeve 833 is respectively matched with the annular groove 850 opened on the outer walls of the feed pipe 810 and the discharge pipe 820, the spiral guide plate 834 is fixed on the inner wall of the screen cylinder 831, and the outer wall of one end of the screen cylinder 831 is connected with the rotating assembly 840.

[0041] The rotating assembly 840 can drive the screen cylinder 831 to rotate at a low speed between the feed pipe 810 and the discharge pipe 820, the screen cylinder 831 drives the screen holes 832 and the spiral guide plate 834 thereon to rotate at a low speed synchronously, and the screen cylinder 831 in the low-speed rotating state can complete the screening of the size of the ore particles through the cooperation with the screen holes 832 with gradually changing hole diameters, so that the ore can fall on the feeding system 700 in different sizes in turn, thereby realizing the pre-separation of the ore, i.e. sorting the ore according to the size of the ore, reducing the technical pain point of low detection accuracy of mixed ore existing in the traditional sorting machine, so that the ore of each particle size can enter the detection box 200 separately, and the detection system 210 and the identification system 220 can detect and identify the ore in the same particle size range; the spiral guide plate 834 can guide the ore in it in a spiral manner through the synchronous rotation with the screen cylinder 831, so that the ore can advance in a spiral along the inner wall of the screen cylinder 831, prolonging the movement path and residence time of the ore in the screen cylinder 831, ensuring that each ore particle can fully contact with the screen holes 832 with different hole diameters, avoiding the technical defect of insufficient screening due to the rapid passing of the ore, and at the same time, the spiral guide plate 834 can also disperse the accumulated ore, so that the ore is uniformly distributed on the inner wall of the screen cylinder 831, improving the utilization rate of the screen holes 832 and further optimizing the screening effect.

[0042] In a preferred embodiment, the cooperation of the conical sleeve 833 and the annular groove 850 can not only ensure that the ore in the feed pipe 810 can effectively and sufficiently enter the inside of the screen cylinder 831, but also ensure that the ore in the inside of the screen cylinder 831 that does not meet the sorting conditions can effectively and sufficiently enter the discharge pipe 820, avoiding the accumulation or blockage of the ore when entering and leaving the screen cylinder 831.

[0043] As shown in FIG. 8, the screen cylinder 831 is obliquely arranged between the feed pipe 810 and the discharge pipe 820, and the inner walls of both ends of the screen cylinder 831 are respectively mounted on the outer walls of the feed pipe 810 and the discharge pipe 820 through bearings. Figures 2 to 6As shown, as a preferred embodiment of the present application, the rotating assembly 840 comprises a rotating motor 841, a gear one 842 and a ring gear 843, the rotating motor 841 is fixed on the inner wall of the feed tank 100, the output end of the rotating motor 841 is fixed with the gear one 842, and the gear one 842 is engaged with the ring gear 843 fixed on the outer wall of the screen cylinder 831.

[0044] The rotating motor 841 drives the gear one 842 to rotate at low speed, and the gear one 842 drives the screen cylinder 831 to rotate at low speed through the ring gear 843, so that the screen cylinder 831 can complete the screening of the size of the ore particles, so that the ore can fall on the feeding system 700 according to different sizes, thereby realizing the pre-separation of the ore, that is, the separation of the ore according to the size of the ore, reducing the technical pain point of low detection accuracy of mixed ore in traditional sorting machines, so that each type of ore with different particle sizes can enter the detection box 200 separately.

[0045] In a preferred embodiment, the rotating motor 841 preferably adopts a servo motor.

[0046] As shown, Figures 2 to 6 As a preferred embodiment of the present application, a feeding conveyor belt is arranged in the feeding system 700, a partition plate 710 is vertically installed on the feeding conveyor belt, the partition plate 710 is equidistantly distributed on the surface of the feeding conveyor belt along the outer contour of the feeding conveyor belt, and a feeding channel is formed between two adjacent partition plates 710 perpendicular to the running direction of the feeding conveyor belt, the distribution number and distribution position of the feeding channel correspond one-to-one with the distribution number and distribution position of the screen holes 832.

[0047] In a preferred embodiment, the partition plate 710 preferably adopts a T-shaped plate structure made of silica gel material, which can ensure that it can effectively and continuously follow the rotation of the feeding conveyor belt, and there is a certain gap between two adjacent partition plates 710 parallel to the running direction of the feeding conveyor belt, which can avoid interference during circumferential rotation and prolong the service life of the partition plate 710.

[0048] As shown, Figure 1 、 Figure 2 、 Figures 7 to 10As shown, in a preferred embodiment of the present invention, the cleaning mechanism 600 includes an air inlet pipe 610, a main frame 620, a mounting sleeve 630, a lifting assembly 640, an adjusting assembly 650, and a cleaning nozzle 660. The main frame 620 is fixed to the inner wall of the detection box 200. Mounting sleeves 630, corresponding one-to-one in number and position to the feeding channels, are distributed at the bottom of the main frame 620. An identification host 221 is vertically slidably mounted at the bottom of the mounting sleeve 630, and an identification mirror 2 is mounted at the bottom of the identification host 221. 22. One end of the lifting assembly 640 is mounted on the main frame 620, and the other end of the lifting assembly 640 is connected to the outer wall of the recognition host 221. One end of the adjustment assembly 650 is mounted on the outer wall of the recognition lens 222, and the other end of the adjustment assembly 650 is connected to the outer wall of the mounting sleeve 630. A cleaning nozzle 660 is mounted on the adjustment assembly 650. The cleaning nozzle 660 is circumferentially distributed on the outer side of the recognition lens 223. One end of the cleaning nozzle 660 is connected to the air storage system 500 through the air inlet pipe 610.

[0049] The lifting assembly 640 includes a lifting cylinder 641, a lifting frame 642, a connecting column 643, and a connecting sleeve 644. The lifting cylinder 641 is fixed on the main frame 620. The lifting frame 642 is fixed on the output end of the lifting cylinder 641. One end of the lifting frame 642 is connected to the connecting column 643, and the other end of the connecting column 643 is fixedly connected to the connecting sleeve 644 fixed on the outer wall of the identification host 221.

[0050] The gas storage system 500 delivers gas to the cleaning nozzle 660 through the air inlet pipe 610. The cleaning nozzle 660 blows the gas towards the location of the recognition lens 223. When it is necessary to clean the dust adhering to the surface of the recognition lens 223 (such as...), Figure 10 As shown in Figure a), the lifting cylinder 641 drives the lifting frame 642 to move upward by telescopic movement. The lifting frame 642 drives the recognition host 221 to move upward through the connecting column 643 and the connecting sleeve 644. The recognition host 221 drives the recognition mirror body 222 and the recognition lens 223 to move upward synchronously. By moving upward and cooperating with the adjustment component 650, the recognition mirror body 222 can change the spray angle of the cleaning nozzle 660, so that the cleaning nozzle 660 directly sprays the cleaning gas onto the surface of the recognition lens 223, thereby quickly cleaning the dust adhering to the surface of the recognition lens 223, ensuring that the recognition lens 223 always remains clean and accurately captures the detailed features of the ore, providing clear and complete image data for the recognition system 220, fundamentally avoiding detection errors caused by dust obstruction, and ensuring the effectiveness of the recognition process.

[0051] When it is necessary to isolate external dust from the recognition lens 223 (e.g.) Figure 10As shown in Figure b), the lifting cylinder 641 drives the lifting frame 642 to move downwards via extension and retraction. The lifting frame 642 drives the identification host 221 to move downwards via the connecting column 643 and the connecting sleeve 644. The identification host 221 drives the identification mirror body 222 and the identification lens 223 to move downwards simultaneously. The identification mirror body 222 changes the spray angle of the cleaning nozzle 660 again by moving downwards and cooperating with the adjustment component 650, so that the cleaning gas sprayed by the cleaning nozzle 660 is located outside the identification lens 223. This causes the cleaning gas to form an invisible air curtain barrier outside the identification lens 223. This barrier can prevent the dust suspended in the detection box 200 from approaching the identification lens 223, reducing the chance of dust contacting the identification lens 223 from the source and preventing dust from continuously adhering. Compared with traditional passive dust prevention, the air curtain barrier can achieve active protection against dust and does not require frequent disassembly and maintenance. It can maintain the clean environment of the identification lens 223 for a long time and reduce detection problems caused by the failure of dust prevention components.

[0052] In a preferred embodiment, the cleaning nozzle 660 is preferably a flat nozzle, which can expand the spray range of the cleaning gas, thereby more effectively cleaning the identification lens 223.

[0053] like Figure 1 , Figure 2 , Figures 7 to 10 As shown, in a preferred embodiment of the present invention, the adjustment assembly 650 includes an annular sleeve 651, a first bracket 652, a first slider 653, a connecting rod 654, a second slider 655, a second bracket 656, and a fixing frame 657. The annular sleeve 651 is fixed on the outer wall of the recognition mirror body 222. The first bracket 652 is circumferentially distributed on the outer wall of the annular sleeve 651. The first slider 653 is rotatably mounted on the first bracket 652. The fixing frame 657 is circumferentially distributed on the outer wall of the mounting sleeve 630. The second bracket 656 is rotatably mounted on the fixing frame 657. A cleaning nozzle 660 is installed in the middle of the second bracket 656. The second slider 655 is rotatably mounted on one end of the second bracket 656. The second slider 655 is located directly above the first slider 653, and the second slider 655 is rotatably connected to the first slider 653 through the connecting rod 654.

[0054] When the identification mirror 222 moves up, the annular sleeve 651 moves up synchronously, the annular sleeve 651 drives the support one 652 and the sliding ball one 653 to move up synchronously, since the fixed frame 657 is always in a stationary state, the sliding ball one 653 drives the support two 656 to rotate on the fixed frame 657 through upward movement and cooperation with the connecting rod 654 and the sliding ball two 655, the support two 656 drives the cleaning nozzle 660 to rotate towards the direction close to the identification lens 223, so as to change the spray angle of the cleaning nozzle 660, so that the cleaning nozzle 660 directly sprays cleaning gas to the surface of the identification lens 223, and then quickly cleans the dust adhered to the surface of the identification lens 223, ensures that the identification lens 223 always keeps clean and accurately captures the detailed features of the ore, provides the identification system 220 with clear and complete image data, fundamentally avoids detection errors caused by dust shielding, and guarantees the effectiveness of the identification link.

[0055] When the identification mirror 222 moves down, the annular sleeve 651 moves down synchronously, the annular sleeve 651 drives the support one 652 and the sliding ball one 653 to move down synchronously, since the fixed frame 657 is always in a stationary state, the sliding ball one 653 drives the support two 656 to rotate on the fixed frame 657 through downward movement and cooperation with the connecting rod 654 and the sliding ball two 655, the support two 656 drives the cleaning nozzle 660 to rotate away from the direction of the identification lens 223, so as to change the spray angle of the cleaning nozzle 660 again, so that the cleaning gas sprayed by the cleaning nozzle 660 is located outside the identification lens 223, and then the cleaning gas forms an invisible air curtain barrier outside the identification lens 223, which can block the dust suspended in the detection box 200 from approaching the identification lens 223, reduces the contact opportunity of dust and the lens from the source, avoids continuous adhesion of dust, compared with the traditional passive dust prevention, the air curtain barrier can realize active protection of dust, and does not need to be frequently disassembled and maintained, long-term maintenance of the clean environment of the identification lens 223 reduces detection problems caused by failure of the dust prevention component.

[0056] The working principle of the present application is:

[0057] The hopper 110 guides the ore into the feed pipe 810, which in turn guides it into the screening assembly 830. A rotary motor 841 drives gear 842 to rotate at low speed. Gear 842, through a ring gear 843, drives the screen cylinder 831 to rotate at low speed. The screen cylinder 831, in turn, drives the screen holes 832 and the guide plate 834 to rotate synchronously at low speed. In this low-speed rotation, the screen cylinder 831, in conjunction with the gradually changing aperture screen holes 832, can screen the ore particles by size, allowing the ore to fall onto the feeding system 700 in sequence according to different sizes. This achieves pre-sorting of the ore, i.e., sorting it according to size, reducing the technical pain point of low detection accuracy for mixed-grade ore in traditional separators, and ensuring that each particle size is separated... Stones can enter the detection box 200 individually, making it convenient for the detection system 210 and the identification system 220 to detect and identify ores within the same particle size range. The spiral guide plate 834, by rotating synchronously with the screen cylinder 831, can spirally guide the ores inside, allowing them to spiral forward along the inner wall of the screen cylinder 831. This extends the movement path and residence time of the ores within the screen cylinder 831, ensuring that each piece of ore can fully contact the screen holes 832 of different apertures. This avoids the technical defect of insufficient screening caused by the rapid passage of ore. At the same time, the guide plate 834 can also disperse the accumulated ore, making the ore evenly distributed on the inner wall of the screen cylinder 831, improving the utilization rate of the screen holes 832, and further optimizing the screening effect.

[0058] The gas storage system 500 delivers gas to the cleaning nozzle 660 through the air inlet pipe 610. The cleaning nozzle 660 blows the gas towards the location of the recognition lens 223. When it is necessary to clean the dust adhering to the surface of the recognition lens 223 (such as...), Figure 10 As shown in Figure a), the lifting cylinder 641 drives the lifting frame 642 to move upward by extending and retracting. The lifting frame 642 drives the recognition host 221 to move upward through the connecting column 643 and the connecting sleeve 644. The recognition host 221 drives the recognition mirror body 222 and the recognition lens 223 to move upward synchronously. The recognition mirror body 222 drives the annular sleeve 651 to move upward synchronously. The annular sleeve 651 drives the first bracket 652 and the first slider 653 to move upward synchronously. Since the fixed frame 657 is always stationary, the first slider 653 can drive the second bracket 656 by moving upward and cooperating with the connecting rod 654 and the second slider 655. The cleaning nozzle 660 rotates on the fixed bracket 657, and the bracket 656 drives the cleaning nozzle 660 to rotate towards the recognition lens 223, thereby changing the spray angle of the cleaning nozzle 660. This allows the cleaning nozzle 660 to directly spray cleaning gas onto the surface of the recognition lens 223, thereby quickly cleaning the dust adhering to the surface of the recognition lens 223. This ensures that the recognition lens 223 is always clean and accurately captures the detailed features of the mineral, providing clear and complete image data for the recognition system 220. This fundamentally avoids detection errors caused by dust obstruction and ensures the effectiveness of the recognition process.

[0059] When it is necessary to isolate external dust from the recognition lens 223 (e.g.) Figure 10 As shown in Figure b), the lifting cylinder 641 drives the lifting frame 642 to move downwards via extension and retraction. The lifting frame 642 drives the identification host 221 to move downwards via the connecting column 643 and the connecting sleeve 644. The identification host 221 drives the identification mirror body 222 and the identification lens 223 to move downwards simultaneously. The identification mirror body 222 drives the annular sleeve 651 to move downwards simultaneously. The annular sleeve 651 drives the bracket 652 and the slider 653 to move downwards simultaneously. Since the fixed frame 657 remains stationary, the slider 653, through its downward movement and its cooperation with the connecting rod 654 and the second slider 655, can drive the bracket 656 to rotate on the fixed frame 657. The bracket 656 drives the cleaning nozzle 660 towards... The nozzle is rotated away from the recognition lens 223, thereby changing the spray angle of the cleaning nozzle 660 again. This causes the cleaning gas sprayed from the cleaning nozzle 660 to be located outside the recognition lens 223, thus forming an invisible air curtain barrier outside the recognition lens 223. This barrier can prevent dust suspended in the detection box 200 from approaching the recognition lens 223, reducing the chance of dust contacting the recognition lens 223 from the source and preventing dust from continuously adhering. Compared with traditional passive dust prevention, the air curtain barrier can achieve active protection against dust and does not require frequent disassembly and maintenance. It can maintain the clean environment of the recognition lens 223 for a long time and reduce detection problems caused by the failure of dust prevention components.

[0060] The above describes the working principle of the multi-stage photoelectric separator used in mineral processing.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage photoelectric separator for mineral processing, comprising a feeding box, a detection box, a collection box, a dust removal system, a gas storage system, a separation system, a feeding system, and a hopper, wherein a detection system and an identification system are respectively installed in the detection box, the identification system being composed of an identification host, an identification mirror, and an identification lens, both the detection system and the identification system being located above the feeding system, and the separation system being located at the bottom of the end of the feeding system, characterized in that, Also includes: A screening mechanism includes a feed pipe, a discharge pipe, a screening component, and a rotating component. The feed pipe and the discharge pipe are respectively installed on the inner walls of the two sides of the feeding box. One end of the feed pipe is connected to the bottom of the hopper, and one end of the discharge pipe extends to the outside of the feeding box. The screening component is located between the feed pipe and the discharge pipe and is rotatably connected to both the feed pipe and the discharge pipe. The screening component is located directly above the feeding system. The screening component has axially opened screen holes with gradually changing apertures. The rotating component is installed inside the feeding box, and one end of the rotating component is connected to the outer wall of the screening component. The screening assembly includes a screen cylinder, a conical sleeve, and a guide plate. The screen cylinder is inclinedly disposed between the feed pipe and the discharge pipe. The screen cylinder has screen holes with gradually changing diameters that cooperate with the feeding system. The inner walls of both ends of the screen cylinder are respectively mounted on the outer walls of the feed pipe and the discharge pipe via bearings. A conical sleeve is fixed on the inner walls of both ends of the screen cylinder. The outer wall of one end of the conical sleeve is connected to the inner wall of the screen cylinder. The inner wall of the other end of the conical sleeve is respectively engaged with annular grooves opened on the outer walls of the feed pipe and the discharge pipe. A spiral guide plate is fixed on the inner wall of the screen cylinder. The outer wall of one end of the screen cylinder is connected to a rotating assembly. A cleaning mechanism is installed on the inner wall of the top of the detection box. One end of the cleaning mechanism extends outside the detection box and is connected to the gas storage system. The other end of the cleaning mechanism is circumferentially distributed on the outside of the recognition lens. The cleaning mechanism includes an air inlet pipe, a main frame, mounting sleeves, a lifting assembly, an adjustment assembly, and cleaning nozzles. The main frame is fixed to the inner wall of the detection box. The bottom of the main frame has mounting sleeves that correspond one-to-one with the number and position of the feeding channels. The bottom of the mounting sleeves has a vertically sliding identification host installed. The bottom of the identification host has an identification lens installed. One end of the lifting assembly is installed on the main frame, and the other end of the lifting assembly is connected to the outer wall of the identification host. One end of the adjustment assembly is installed on the outer wall of the identification lens, and the other end of the adjustment assembly is connected to the outer wall of the mounting sleeve. The adjustment assembly has cleaning nozzles installed on it. The cleaning nozzles are circumferentially distributed on the outside of the identification lens, and one end of the cleaning nozzle is connected to the air storage system through the air inlet pipe. The lifting assembly includes a lifting cylinder, a lifting frame, a connecting column, and a connecting sleeve. The lifting cylinder is fixed on the main frame, and the lifting frame is fixed on the output end of the lifting cylinder. The lifting frame is connected to one end of the connecting column, and the other end of the connecting column is fixedly connected to the connecting sleeve fixed on the outer wall of the identification host. The adjustment assembly includes an annular sleeve, a first bracket, a first slider, a connecting rod, a second slider, a second bracket, and a fixing frame. The annular sleeve is fixed to the outer wall of the recognition mirror. The first bracket is circumferentially distributed on the outer wall of the annular sleeve, and the first slider is rotatably mounted on the first bracket. The fixing frame is circumferentially distributed on the outer wall of the mounting sleeve, and the second bracket is rotatably mounted on the fixing frame. A cleaning nozzle is installed in the middle of the second bracket, and the second slider is rotatably mounted on one end of the second bracket. The second slider is located directly above the first slider, and the second slider is rotatably connected to the first slider through a connecting rod.

2. The multi-stage photoelectric separator for mineral processing according to claim 1, characterized in that, The rotating assembly includes a rotary motor, a first gear, and a ring gear. The rotary motor is fixed on the inner wall of the feeding box, and the first gear is fixed on the output end of the rotary motor. The first gear meshes with the ring gear fixed on the outer wall of the screen cylinder.

3. The multi-stage photoelectric separator for mineral processing according to claim 1, characterized in that, The feeding system is equipped with a feeding track, on which partitions are vertically installed. The partitions are equidistantly distributed on the surface of the feeding track along its outer contour, perpendicular to the running direction of the feeding track, and a feeding channel is formed between two adjacent partitions. The number and position of the feeding channels correspond one-to-one with the number and position of the screen holes.

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