AI vision-based coal slime water system coarse running real-time detection device

Abstract

The invention relates to the technical field of mineral separation, in particular to an AI-vision-based real-time detection device for coarse grain leakage of a slime water system. The device comprises a flow dividing pipe, a center main shaft, a cross-shaped rotating shaft, a material carrying disc, an ultrasonic cleaning device, a visual recognition device and a bottom material collecting tank. The flow dividing pipe is divided into two branches, one branch is connected with the flotation feeding pipe to form a loop, and the other branch is fixed above the material carrying disc and used for controlling the material flow. And the central main shaft is vertically connected with the cross-shaped rotating shaft to drive the material carrying disc to rotate along the track. The ultrasonic cleaning device dissociates flocculated particles through ultrasonic waves, and the visual recognition device detects the particles in real time through the AI visual technology and recognizes the particle size range and the particle size. The device can be used for effectively detecting and controlling the rough flotation phenomenon and improving the flotation efficiency, and has relatively high technical innovation and market application prospect.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral separation, and particularly relates to a real-time detection device for coarse particle running in a coal slime water system based on AI vision. Background Art

[0002] The flotation feed is the underflow of the thickener. For most thermal coal preparation plants, coal slime below 0.5 mm needs to undergo a flotation recovery process. This part of the coal slime generally comes from the underflow of the thickener. In the process of thickening and treating coal slime, in order to accelerate the sedimentation time, a flocculant is added to the coal slime water. The thickened underflow is used as the flotation feed. The flotation feed enters the pulp preparator, and flotation reagents are added to the pulp preparator for pulp conditioning. After pulp conditioning, the coal slime water enters the flotation machine for flotation. Among them, minerals with higher density gather at the bottom and become flotation tail coal, while minerals with smaller density float on the upper part and become flotation clean coal.

[0003] However, in the actual coal slime water flotation process, the "coarse particle running phenomenon" often occurs, that is, during the flotation process, coal slime particles with a particle size greater than 0.5 mm have poor floatability and slow flotation speed, and fail to float upward into the foam product (i.e., flotation clean coal) in time, but are lost in the tail coal. These coarse particle coal slimes are not effectively recovered, resulting in a decline in flotation effect and affecting the production efficiency and economic benefits of the coal preparation plant.

[0004] The generation of the coarse particle running phenomenon is mainly due to the following reasons: Larger particle size: Coal slime particles larger than 0.5 mm are difficult to float upward effectively during the flotation process; Influence of flocculant: In the process of coal slime water treatment, in order to accelerate the sedimentation speed, a flocculant is usually added, resulting in the particles flocculating into clusters, further increasing the flotation difficulty of coarse particles; Insufficient flotation time: The flotation speed of coarse particle coal slime is relatively slow. If the flotation time is insufficient, the coarse particles cannot float upward in time and are finally lost in the tail coal.

[0005] Therefore, how to provide a real-time detection device for coarse particle running in a coal slime water system based on AI vision, which can fully dissociate the flocculated particles, detect the particle size range of the coarse particles running, and guide the on-site control mechanism through the coarse particle size range, and ensure the accuracy of the particle size range, is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, the present invention proposes a real-time detection device for coarse particle running in a coal slime water system based on AI vision, which can fully dissociate the flocculated particles, detect the particle size range of the coarse particles running, and guide the on-site control mechanism through the coarse particle size range, and ensure the accuracy of the particle size range.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a real-time detection device for coarse material running in a coal slime water system based on AI vision, comprising: A shunt pipe, which is divided into two branches. One branch is connected end to end with the flotation feed pipe to form a loop, and the other branch is fixed above the material carrier tray. A shunt pipe return control valve and a shunt pipe feed control valve are provided on the shunt pipe; A central main shaft, which is vertically connected to a cross shaft. The cross shaft makes a circular motion along with the central main shaft; A material carrier tray, which is connected to the cross shaft through a material carrier tray load-bearing drag. The material carrier tray load-bearing drag rotates along a track; An ultrasonic cleaning device, which includes an ultrasonic generator, an ultrasonic cleaning tank and a lifting table. The ultrasonic generator is used to dissociate flocculent particles, and the lifting table is fixed on the material collection chassis; A jet spray cleaning pipe, which is located at the upper end of the track and is used to wash the material; A visual recognition device, which is fixed on a bracket and is used to perform visual detection on the material to identify the particle size range and particle size; A bottom material collection tank, which includes a material collection chassis and a support bracket for the bottom material collection tray. The bottom material collection tank is used to collect the tested material.

[0008] Preferably, one branch of the shunt pipe is used to control the amount of material entering the material carrier tray, and the other branch is used for loop design to ensure that the equipment can be used under any working conditions.

[0009] Preferably, the cross shaft is clamped with four material carrier tray load-bearing drags. The material carrier tray load-bearing drags rotate along the track, and the track is fixed on the periphery of the central main shaft.

[0010] Preferably, the ultrasonic generator in the ultrasonic cleaning device dissociates flocculent particles into individual particles by ultrasonic cavitation, and the lifting table is used to immerse the material on the material carrier tray in the ultrasonic cleaning tank.

[0011] Preferably, the jet spray cleaning pipe is used to wash the material after ultrasonic dissociation, and a position sensor is installed at the outlet of the jet spray cleaning pipe.

[0012] Preferably, the visual recognition device takes intermittent photos through a visual detection device at an interval of 0.01 seconds, and takes multiple photos for analyzing the particle size range and particle size.

[0013] Preferably, the track is provided with a connecting track at the unloading place. The connecting track is driven by a flipping motor. The flipping motor (502) drives the material carrier tray to flip towards the central main shaft through a flipping shaft.

[0014] Preferably, a spray pipe for the turned material carrier tray is provided above the turned material carrier tray, and a solenoid valve for controlling the flow rate is provided at the water outlet of the spray pipe for the turned material carrier tray.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention uses a visual recognition device to detect coal slime particles in real time, and uses AI vision technology to analyze the particle size range and particle size of the particles, and can quickly and accurately identify oversize particles; the visual recognition device takes intermittent photos (the interval time is 0.01 second), and combines multiple photos for comparative analysis, improving the accuracy and precision of the detection.

[0016] 2. The present invention uses an ultrasonic cleaning device, and utilizes the ultrasonic cavitation effect generated by an ultrasonic generator to dissociate the flocculated particles into individual particles, facilitating subsequent visual recognition and particle size analysis.

[0017] 3. The present invention immerses the materials on the material carrier tray in the ultrasonic cleaning tank through a lifting platform to ensure that the particles are fully dispersed and improve the accuracy of the detection.

[0018] 4. The present invention divides the shunt pipe into two branches, one for controlling the amount of materials entering the material carrier tray, and the other for loop design, ensuring that the device can be used under any working conditions. The design of the shunt pipe enables the device to flexibly adjust the material flow rate to meet the requirements of different working conditions.

[0019] 5. The present invention rotates the material carrier tray along the track, and the track is fixed around the central main shaft to ensure the accurate movement track of the material carrier tray; the material carrier tray is provided with a connecting track at the unloading position, and the connecting track is driven by a turning motor to ensure the continuity of material unloading and feeding, improving the working efficiency.

[0020] 6. The present invention designs a jet spray cleaning pipe, which is used to flush the materials after ultrasonic dissociation to ensure that the particles are fully dispersed, facilitating subsequent visual recognition and particle size analysis. Description of the Drawings

[0021] The present invention will be further described below in conjunction with the drawings and embodiments.

[0022] Figure 1 is the overall structure schematic diagram of the device for real-time detection of oversize in coal slime water system based on AI vision of the present invention; Figure 2 is the structure schematic diagram of the ultrasonic cleaning device of the present invention; Figure 3 is the structure schematic diagram of the visual recognition device of the present invention; Figure 4 is the structure schematic diagram of the material turning mechanism of the present invention.

[0023] In the figure: 101, flotation feed pipe; 1011, flotation feed inlet; 102, shunt pipe; 1021, shunt pipe return pipe; 1022, shunt pipe feed pipe; 10211, shunt pipe return control valve; 10221, shunt pipe feed control valve; 103, track; 104, 105, 106, 107, material carrier trays; 1041, 1051, 1061, 1071, material carrier tray load-bearing drags; 201, central main shaft; 202, cross rotating shaft; 203, main shaft motor; 301, ultrasonic cleaning tank; 302, cleaning tank underflow pipe; 303, ultrasonic generator; 304, lifting platform; 305, jet spray cleaning water pipe; 401, light source; 402, vision inspection device; 501, flipping rotating shaft; 502, flipping motor; 503, flipping material tray spray pipe; 504, connecting track; 505, flipping material collection tank; 601, material collection chassis; 602, support for bottom material collection tray. Detailed implementation manners

[0024] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0025] As Figures 1 to 4 shown, the present invention includes the following embodiments: As Figure 1 shown, the real-time detection device for coarse particles running in the coal slime water system based on AI vision of the present invention includes a shunt pipe 102, a central main shaft 201, a cross rotating shaft 202, material carrier trays 104 - 107, an ultrasonic cleaning device 30, a vision recognition device 40 and a bottom material collection tank 60.

[0026] The shunt pipe 102 is divided into two branches. One branch is the shunt pipe return pipe 1021, and the shunt pipe return pipe 1021 is connected to the flotation feed pipe 101 to form a loop. The other branch is the shunt pipe feed pipe 1022. The shunt pipe feed pipe 1022 is fixed above the material carrier trays 104 - 107 and is used to control the amount of material entering the material carrier trays. A shunt pipe return control valve 10211 is provided on the shunt pipe return pipe 1021, and a shunt pipe feed control valve 10221 is provided on the shunt pipe feed pipe 1022.

[0027] The central main shaft 201 is driven to rotate by the main shaft motor 203. The central main shaft 201 is vertically connected to the cross shaft 202. The cross shaft 202 makes a circular motion along with the central main shaft 201. The cross shaft 202 is clamped with four material carrier load-bearing trolleys 1041 - 1071. The other ends of the four material carrier load-bearing trolleys 1041 - 1071 are respectively fixed to the material carriers 104 - 107. The material carrier load-bearing trolleys 1041 - 1071 rotate along the track 103. The track 103 is fixed on the periphery of the central main shaft 201, driving the material carrier load-bearing trolleys 1041 - 1071 to rotate along the track 103.

[0028] The ultrasonic cleaning device 30 includes an ultrasonic generator 303 and an ultrasonic cleaning tank 301. The ultrasonic generator 303 is used to dissociate flocculent particles. As Figure 2 shown, the ultrasonic cleaning device 30 further includes a lifting platform 304. The lifting platform 304 is used to immerse the ultrasonic cleaning tank 301 in the materials on the material carriers 104 - 107, ensuring that the particles are fully dispersed, facilitating subsequent visual recognition and particle size analysis.

[0029] As Figure 1 shown, the jet spray cleaning water pipe 305 is fixed on the bracket. The jet spray cleaning water pipe 305 is used to rinse the materials, facilitating subsequent visual recognition; as Figure 3 shown, a visual recognition device is fixed on the bracket. The visual recognition device 40 takes intermittent photos through the visual detection device 402. The interval time is 0.01 second. Multiple photos are taken for analyzing the particle size range and particle size, and the morphology of the particles is analyzed through the AI algorithm to improve the accuracy and precision of the detection.

[0030] As Figure 4 shown, the material carriers 104 - 107 are provided with connecting tracks 504 at the unloading position. The connecting tracks 504 are a section of the track 103 and can be separated from the track 103. The connecting tracks 504 are driven by a flipping motor 502. The flipping motor 502 drives the material carriers 104 - 107 to flip towards the central main shaft 201 through the flipping shaft 501. A flipping material collection tank 505 is provided below the flipped material carriers 104 - 107. A bottom material collection tank (not shown in the figure) is provided below the flipping material collection tank 505 for collecting the tested materials. The bottom material collection tank includes a material collection chassis 601. The material collection chassis 601 is fixed through a supporting bottom material collection tray bracket 602. A flipping material tray spray pipe 503 is provided above the flipped material carriers 104 - 107. A solenoid valve for controlling the flow rate is provided at the water outlet of the flipping material tray spray pipe 503.

[0031] During the actual operation process, the shunt pipe feeding control valve 10221 is opened, and the materials in the flotation material pipe 101 flow through the shunt pipe feeding pipe 1022 to the material carrier trays 104 - 107 below. Here, taking the material carrier tray 104 as an example, during the rotation of the central main shaft 201, the cross shaft 202 is driven to rotate. The cross shaft 202 is clamped with the material carrier tray bearing drag 1041. The rotation of the cross shaft 202 drives the material carrier tray bearing drag 1041 to rotate along the track 103, thereby driving the material carrier tray 104 fixedly connected to the material carrier tray bearing drag 1041 to rotate counterclockwise around the central main shaft 201. When the material carrier tray bearing drag 1041 rotates to the ultrasonic cleaning position, the central main shaft 201 stops rotating (the specific implementation method can be to set a position sensor at the ultrasonic cleaning position, including infrared sensors, Hall sensors, etc. The sensor, controller, and main shaft motor 203 are electrically connected, so that when the material carrier tray bearing drag 1041 rotates to the ultrasonic cleaning position, the main shaft motor 203 pauses rotation. This is prior art and will not be elaborated here). The lifting platform 304 drives the ultrasonic cleaning tank 301 to rise (the specific implementation method can be that the lifting platform 304 is electrically connected to the controller. When the material carrier tray bearing drag 1041 rotates to the ultrasonic cleaning position, the controller sends an electrical signal to the lifting platform 304), so that the ultrasonic cleaning tank 301 fully immerses the materials on the material carrier tray 104, and the ultrasonic generator 303 works (the specific implementation method can be that the controller is electrically connected to the ultrasonic generator 303, and the internal program is set so that the lifting platform 304 starts for a few seconds corresponding to the completion of the lifting of the lifting platform. For example, after starting for 8 seconds, the lifting of the lifting platform is completed, and the ultrasonic generator 303 starts. This implementation method is only one way and is prior art and will not be elaborated here), dissociating the material floc particles and fully dispersing the particles; after the particles are dispersed (the specific method can be to default the start duration of the ultrasonic generator 303 corresponding to the completion of the dispersion. For example, starting for 30s corresponds to the completion of the dispersion), the lifting platform 304 drives the ultrasonic cleaning tank 301 to fall back, and the central main shaft 201 rotates to drive the material carrier tray 104 to rotate. The material carrier tray bearing drag 1041 rotates to the position of the jet spray cleaning water pipe 305 and stops rotating. The jet spray cleaning water pipe 305 sprays the materials in the material carrier tray 104 (the implementation method is the same as above), screening out the fine particles with a size less than 0.5 mm. After the spraying is completed, the central main shaft 201 rotates to drive the material carrier tray 104 to rotate to the visual recognition device and stop (the implementation method is the same as above). The recognition device uses the visual detection device 402 with a relatively high recognition particle size range to take intermittent photos, and the interval time is 0.In 0.1 s, multiple photos are taken for analyzing the particle size range and particle size to improve the accuracy of visual detection. After the material particle size detection is completed (the implementation method is the same as above, and the photographing duration can be set by an internal program corresponding to the detection completion), the central main shaft 201 rotates to drive the material carrier tray 104 to rotate. When the load-bearing drag 1041 of the material carrier tray rotates to the unloading position, the central main shaft 201 stops rotating (the implementation method is the same as above). At this time, the load-bearing drag 1041 of the material carrier tray is located on the connecting track 504, and the flipping motor 502 is turned on. The flipping motor 502 drives the load-bearing drag 1041 of the material carrier tray to flip forward through the flipping rotating shaft 501. Since the load-bearing drag 1041 of the material carrier tray is clamped with the cross rotating shaft 202, the load-bearing drag 1041 of the material carrier tray automatically disengages from the cross rotating shaft 202 during the forward flipping process. During the forward flipping process, the detected material in the material carrier tray 104 falls into the flipped material collection trough 504. The material collection chassis 601 is located below the flipped material collection trough 504, and the detected material falling into the flipped material collection trough 504 enters the material collection chassis 601 to complete the collection of the detected material; above the corresponding position of the flipped material carrier tray 104, there is a flipped material tray spray pipe 503. The flipped material tray spray pipe 503 sprays the material carrier tray after the flipping and unloading is completed to prepare for the next operation. After the spraying is completed, the flipping motor 502 starts. The flipping motor drives the load-bearing drag 1041 of the material carrier tray to flip backward through the flipping rotating shaft 501 until the connecting track 504 reaches the track track 103. After the load-bearing drag 104 of the material carrier tray is flipped, it is clamped and fixed with the cross rotating shaft 202 under the backward and downward pressure.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached Figure 2 figure, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A real-time detection device for coarse particle running in a coal slime water system based on AI vision, characterized in that, Including: A shunt pipe (102), which is divided into two branches. One branch is connected end to end with the flotation feed pipe (101) to form a loop, and the other branch is fixed above the material carrier trays (104 - 107). A shunt pipe return control valve (10211) and a shunt pipe feed control valve (10221) are provided on the shunt pipe (102); A central main shaft (201), which is vertically connected to a cross shaft (202), and the cross shaft (202) makes a circular motion along with the central main shaft (201); Material carrier trays (104 - 107), which are connected to the cross shaft (202) through material carrier tray load-bearing drags (1041 - 1071), and the material carrier trays (104 - 107) rotate along the track (103); An ultrasonic cleaning device, which includes an ultrasonic generator (303), an ultrasonic cleaning tank (301) and a lifting table (304). The ultrasonic generator (303) is used to dissociate flocculent particles, and the lifting table (304) is fixed on the material collection chassis (602); A jet injection cleaning pipe (305), which is located at the upper end of the track (103) and is used to wash the material; A vision recognition device, which is fixed on a bracket and is used for visual detection of the material to identify the particle size range and particle size; A bottom material collection tank, which includes a material collection chassis (601) and a support bracket (602) for the bottom material collection tray, and is used to collect the inspected material.

2. The real-time detection device for coarse particle running in a coal slime water system based on AI vision according to claim 1, characterized in that, One branch of the shunt pipe (102) is used to control the amount of material entering the material carrier trays (104 - 107), and the other branch is used for loop design to ensure that the equipment can be used under any working conditions.

3. The real-time detection device for coarse particle running in a coal slime water system based on AI vision according to claim 1, wherein, The cross shaft (202) is connected to four material carrier tray load-bearing drags (1041 - 1071), and the material carrier tray load-bearing drags (1041 - 1071) rotate along the track (103), and the track (103) is fixed around the central main shaft (201).

4. The real-time detection device for coarse particle escape in a coal slime water system based on AI vision according to claim 1, characterized in that, The ultrasonic generator (303) in the ultrasonic cleaning device dissociates the flocculent particles into individual particles by ultrasonic cavitation, and the lifting table (304) is used to immerse the material on the material carrier trays (104 - 107) in the ultrasonic cleaning tank (301).

5. The real-time detection device for coarse material running in a coal slime water system based on AI vision according to claim 1, characterized in that, The jet injection cleaning pipe (305) is used to wash the material after ultrasonic dissociation, and a position sensor is installed at the outlet of the jet injection cleaning pipe (305).

6. The real-time detection device for coarse particle running in a coal slime water system based on AI vision according to claim 1, characterized in that, The vision recognition device takes intermittent photos through a vision detection device (402) at an interval of 0.01 seconds, and takes multiple photos for analyzing the particle size range and particle size.

7. The real-time detection device for coarse particle running in a coal slime water system based on AI vision according to claim 1, characterized in that, The track (103) is provided with a connecting track (504) at the unloading place, and the connecting track (504) is driven by a flipping motor (502). The flipping motor (502) drives the material carrier trays (104 - 107) to flip towards the central main shaft (201) through a flipping rotating shaft (501).

8. The real-time detection device for coarse particle running in a coal slime water system based on AI vision according to claim 7, characterized in that, Above the flipped material carrier trays (104 - 107), there is a spray pipe (503) for the flipped material trays, and a solenoid valve for controlling the flow rate is provided at the water outlet of the spray pipe (503) for the flipped material trays.

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