Intelligent sensing visual multi-structure lining plate wet and dry dual-purpose ore grinding experiment device and method

Abstract

The invention discloses an intelligent sensing visual multi-structure lining plate wet and dry dual-purpose ore grinding experiment device and method, and belongs to the technical field of mineral processing, the intelligent sensing visual multi-structure lining plate wet and dry dual-purpose ore grinding experiment device comprises a mill, a motor, a speed reducer, an intelligent monitoring module, a supporting device and a material receiving device, the mill comprises a cylinder, a lining plate supporting seat and a detachable lining plate are arranged in the cylinder and are in wedged connection through a T-shaped groove rail, and the material receiving device is arranged in the cylinder; triangular, corrugated and square lining plates can be replaced; a wet grinding ore pulp inlet and outlet is formed in the surface of the barrel, is in threaded connection with a sealing cover and a filter disc, and is compatible with a dry-wet grinding experiment process; the end cover is provided with a high-strength transparent glass observation window, the motor and the speed reducer are matched with the high-speed camera and the intelligent monitoring module, and the ore grinding state is monitored in real time. The device has the advantages of parameter adjustment, dry and wet grinding, easy replacement of the lining plate, simple structure, reliable operation, compact whole system, high grinding efficiency, low energy consumption, uniform grinding granularity and simple operation.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral processing, and in particular to an intelligent perception visualization multi-structure liner dry and wet dual-purpose grinding experimental device and method. Background Art

[0002] In the fields of mineral processing, building materials and chemical industry, ball mill is the core equipment for material grinding. However, the traditional ball mill experimental device has significant defects:

[0003] Insufficient process compatibility: unable to meet the requirements of both dry and wet grinding processes, limiting experimental scenarios;

[0004] Fixed liner structure: The liner shape cannot be changed, making it difficult to explore the impact of different liner structures on grinding efficiency;

[0005] Lack of real-time monitoring: The lack of visual observation methods and intelligent monitoring systems makes it difficult to dynamically track the material status and grinding process. As a result, experiments rely on empirical operations and cannot accurately obtain the optimal matching parameters of liner shape, cylinder size and grinding effect.

[0006] Therefore, developing a grinding experimental device that is compatible with dry and wet processes, has replaceable liners and intelligent monitoring functions is of great significance to improving the scientificity and efficiency of mineral processing experiments. Summary of the Invention

[0007] The purpose of the present invention is to provide an intelligent perception visualization multi-structure liner dry and wet dual-purpose grinding experimental device and method, which has the advantages of adjustable parameters, easy replacement of liners, simple structure, reliable operation, compact whole system, high grinding efficiency, low energy consumption, uniform grinding particle size and simple operation.

[0008] To achieve the above objectives, the present invention provides an intelligent perception and visualization multi-structure liner wet and dry dual-purpose grinding experimental device, comprising:

[0009] The mill comprises a cylinder, a liner support seat and a detachable liner are provided inside the cylinder, a wet slurry inlet and outlet are provided on the surface of the cylinder, and an observation window and an end cover are provided on one side of the cylinder;

[0010] The side of the cylinder away from the end cover is connected in sequence with a bearing assembly, a first coupling, a torque sensor, a second coupling, a reducer, and a motor, and the motor drives the drum to rotate through the reducer;

[0011] Intelligent monitoring module, including sensors, signal collectors, computers, and high-speed cameras, used to monitor device operating parameters;

[0012] The material receiving car and the slurry barrel are placed below the discharge port of the cylinder, and are used for collecting dry grinding products and storing wet grinding slurry respectively.

[0013] Preferably, the cylinder has a diameter of 200 mm or 400 mm, and a length of 400 mm or 200 mm.

[0014] Preferably, the arc surface of the liner support seat fits with the inner wall of the cylinder, the liner support seat is fixed in a circular shape inside the cylinder by bolts, the T-slot rail on the liner support seat is arranged along the axial direction of the cylinder, and the detachable liner is wedged with the liner support seat by the T-slot rail, and the detachable liner can be replaced with a triangular, rectangular, semicircular or corrugated structure.

[0015] Preferably, the wet slurry inlet and outlet are connected to the cylinder through threads, and the wet slurry inlet and outlet are provided with a sealing cover and a high-strength wear-resistant steel filter plate, which is suitable for wet grinding process. The sealing covers on the feed side and the discharge side are sealed by threads, and the filter plate is welded to the connecting end of the wet slurry inlet and outlet and the cylinder, and the filter hole size is smaller than the grinding medium size.

[0016] Preferably, the observation window is made of high-strength transparent glass and is arranged on the surface of the end cover. The end cover is hinged to the drum, and the end cover is locked to the end surface of the cylinder by bolts.

[0017] Preferably, the bearing assembly includes a split bearing seat and an angular contact ball bearing, and the bearing is used to bear axial load; the first coupling and the second coupling are both plum blossom couplings, and the adapter device is frequently started and reversed; the motor is a servo motor, which can achieve speed regulation, high-precision motion control and rapid response; the reducer is a gear reducer, which is used in conjunction with the motor to reduce the speed and increase the torque.

[0018] Preferably, the sensors include motor status monitoring sensors, reducer status monitoring sensors, dynamic torque sensors, bearing status sensors, and grinder output speed monitoring sensors. The signals are fed back to the computer via the bus through the collector to realize equipment status monitoring, fault warning and experimental parameter analysis.

[0019] Preferably, the high-speed camera is closely matched with the high-strength transparent glass observation window to observe the movement state of the material and grinding medium inside the mill and the grinding process in real time.

[0020] The present invention also includes an intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental method, which includes the following steps:

[0021] S1. Select the mill size, liner shape and material, and grinding media according to the experimental requirements, assemble the experimental device, and place the mill horizontally;

[0022] S2. For dry grinding, close the wet material inlet and outlet, add the mineral and grinding media through the end cap, tighten the end cap, start the device, and monitor the grinding process using a high-speed camera. The intelligent monitoring system collects speed and torque parameters. After the experiment is complete, open the end cap and collect the material onto the receiving vehicle.

[0023] S3. If using wet grinding, add ore through the wet material inlet and outlet, tighten the end cap and sealing cover, start the device, and conduct real-time observation and parameter monitoring as for the dry method. After the experiment is completed, discharge the slurry into the slurry tank through the wet material outlet.

[0024] S4. Compare the grinding products under different parameters and liner conditions, and analyze the influence of various factors on the grinding effect.

[0025] Preferably, during the experiment, a high-speed camera is used to observe the "drop-impact" state, trajectory and kinetic energy conversion rate of the grinding medium, the spatial distribution of particles during dry grinding, and the slurry flow state during wet grinding; a computer processes the monitoring data and images to evaluate the grinding effect and optimize the experimental parameters.

[0026] Therefore, the present invention adopts the above-mentioned intelligent perception visualization multi-structure liner dry and wet dual-purpose grinding experimental device, which has the following technical effects:

[0027] (1) The liner support and the detachable liner of the present invention can be matched with different lengths and diameters of the drum, which is easy to achieve experimental diversity and facilitates the study of the influence of liner shape and mill size on grinding effect;

[0028] (2) The drum of the present invention is provided with a high-strength glass observation window, which, in conjunction with a high-speed camera, can observe the material state and grinding effect in real time;

[0029] (3) The device of the present invention can take into account both dry and wet grinding processes;

[0030] (4) The intelligent monitoring system of the mill in the present invention can transmit the signal data generated during the experiment to the computer for analysis in real time, so that the experimenter can control the experimental progress and equipment status in real time.

[0031] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural diagram of an intelligent perception visualization multi-structure liner dry and wet dual-purpose grinding experimental device of the present invention;

[0033] Figure 2 This is a schematic diagram of the principle of the liner support seat, detachable liner and its assembly structure in an intelligent perception and visualization multi-structure liner dry and wet dual-purpose grinding experimental device of the present invention;

[0034] Figure 3 This is a schematic diagram of the assembly structure principle of the liner support seat, detachable liner and cylinder in an intelligent perception and visualization multi-structure liner dry and wet dual-purpose grinding experimental device of the present invention;

[0035] Figure 4 It is a structural schematic diagram of the wet inlet and outlet in an intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device of the present invention.

[0036] Reference numerals

[0037] 1. Grinding mill; 2. Bearing assembly; 3. First coupling; 4. Torque sensor; 5. Second coupling; 6. Reducer; 7. Motor; 8. Intelligent monitoring module; 9. Computer; 10. Slurry barrel; 11. Material receiving vehicle; 12. Camera; 13. Liner support seat; 14. Removable liner; 15. Cylinder; 16. Wet slurry inlet and outlet; 17. Filter disc; 18. Sealing cover; 19. End cover; 20. Observation window. DETAILED DESCRIPTION

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0039] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons of ordinary skill in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0040] An intelligent perception visualization multi-structure liner dry and wet dual-purpose grinding experimental device includes a mill 1, which includes a cylinder 15. The cylinder 15 is made of high-strength steel and can be selected with a diameter of 400mm and a length of 200mm or a diameter of 200mm and a length of 400mm. An arc-shaped liner support seat 13 is evenly fixed in the circumferential direction inside the cylinder 15 by bolts. The arc surface of the liner support seat 13 fits tightly with the inner wall of the cylinder 15; a T-shaped groove rail is opened on the liner support seat 13 along the axial direction of the cylinder 15. The detachable liner 14 is wedged with the T-shaped groove rail of the support seat through the T-slot, and can be quickly replaced with a triangular, square, semicircular or corrugated structure. By combining mills 1 of different sizes with liners of different shapes, it is convenient to study the optimal grinding parameters of various minerals.

[0041] A wet slurry inlet and outlet 16 is provided on the surface of the cylinder 15, and the wet slurry inlet and outlet 16 are both connected to the cylinder 15 by threads. A sealing cover 18 is provided on the feed side and the discharge side, and the sealing cover 18 is connected to the wet slurry inlet and outlet 16 by threads, thereby achieving a sealing effect; a steel high-strength wear-resistant filter plate 17 is welded on the side of the inlet and outlet close to the cylinder 15, and the filter pore size is smaller than the diameter of the grinding medium to prevent the grinding medium from being thrown out. The wet material inlet and outlet are conducive to the material transportation needs of the wet grinding process, and can realize the convenient addition of wet material and the efficient discharge of grinding products.

[0042] An end cap 19 is provided on one side of the cylinder 15 and is hingedly connected to an opening on one side of the cylinder 15. A high-strength glass observation window 20 is embedded in the surface of the end cap 19 and bolted to the end face of the cylinder 15. The high-strength glass observation window 20, in conjunction with the high-speed camera 12, facilitates real-time observation of the material state within the mill 1 and the grinding progress.

[0043] The side of the cylinder 15 away from the end cover 19 is connected in sequence with the bearing assembly 2, the first coupling 3, the torque sensor 4, the second coupling 5, the reducer 6 and the motor 7. The motor 7 is a servo motor 7, which is adapted to the experimental device and can achieve speed regulation, high-precision motion control and fast response capability. The drum is driven to rotate by the reducer 6. The reducer 6 is used in conjunction with the motor 7, and a gear reducer is used to reduce the speed and increase the torque. The bearing assembly 2 consists of a bearing seat, a bearing, etc. The bearing is an angular contact ball bearing, which is used to bear axial loads; the bearing seat is a split bearing seat; the first coupling 3 and the second coupling 5 are both plum blossom couplings, which are adapted to the frequent start-up and forward and reverse rotation of the experimental device.

[0044] The intelligent monitoring module 8 includes sensors, a signal collector, a computer 9, and a high-speed camera 12, which are used to monitor the operating parameters of the device; the sensors include a motor state monitoring sensor, a reducer state monitoring sensor, a dynamic torque sensor, a bearing state sensor, and a mill speed monitoring sensor;

[0045] The reducer status monitoring sensor is installed on the reducer 6. Through the status monitoring sensor, the vibration, temperature and other conditions of the reducer 6 can be monitored in real time. Abnormal vibration or abnormal temperature rise may mean that the reducer 6 is faulty. By transmitting the abnormal signal to the computer 9, an alarm is issued to avoid losses caused by the fault.

[0046] The dynamic torque sensor can monitor the torque changes of the transmission shaft in real time during operation, capture the instantaneous value, peak value, fluctuation and so on of the torque, and reflect the dynamic changes of the load of the experimental device during operation. By transmitting the collected signal to the computer 9, the computer 9 analyzes the torque data and determines whether the operating status of the transmission component is normal. When the torque exceeds the set threshold, the device can be linked to alarm or shut down to avoid damage to the device due to overload. At the same time, it provides real-time torque feedback to the experimental model of the computer 9, helping to optimize the experimental parameters and improve the analysis efficiency.

[0047] The bearing status sensor is installed on the bearing seat. It monitors the vibration, temperature rise and other parameters of the bearing seat and transmits the collected signals to the computer 9. The computer 9 processes these signals, analyzes and identifies problems such as bearing wear, damage or poor lubrication, and ultimately realizes fault warning, bearing life prediction and operating status evaluation, ensuring the reliable operation of the experimental equipment.

[0048] The mill speed monitoring sensor is installed on the cylinder 15 of the mill 1, which can monitor and feedback the speed status in real time, ensure that the speed of the mill 1 is stable in the optimal range, ensure that the speed of the mill 1 is in a monitorable state, and analyze the impact of the speed of the mill 1 on the grinding effect in real time through the computer 9;

[0049] The signals collected by various sensors are collected in the signal collector and then fed back to the computer 9 through the bus, thereby realizing intelligent detection of the entire experimental device. It is convenient to combine and match parameters such as liners of different shapes, mill sizes, torque, mill output speed, etc., and analyze their influence on the grinding effect.

[0050] An intelligent perception and visualization multi-structure liner wet and dry dual-purpose grinding experimental method includes the following steps:

[0051] S1. Select the size, shape and material of the liner, grinding medium, and assemble the experimental apparatus according to the experimental requirements, and place the mill 1 horizontally;

[0052] S2. If dry grinding is used, close the wet material inlet and outlet, add the mineral and grinding medium through the end cap 19, lock the end cap 19, start the device, use the high-speed camera 12 to observe the grinding status, and the intelligent monitoring system collects parameters such as speed and torque; after the experiment is completed, open the end cap 19 to collect the ore and transfer it to the material receiving car 11;

[0053] S3. If wet grinding is used, add the ore through the wet slurry inlet and outlet 16, tighten the end cap 19 and the sealing cover 18, start the device, and perform real-time observation and parameter monitoring with the dry method; after the experiment is completed, the slurry is discharged into the slurry barrel 10 through the wet slurry inlet and outlet 16;

[0054] S4. Compare the grinding products under different parameters and liner conditions, and analyze the influence of various factors on the grinding effect.

[0055] During the experiment, the whole process of the experiment is visualized by high-speed camera. The high-speed camera transmits the image to the computer 9, and it can be observed in real time on the computer 9 whether the grinding medium inside the mill 1 is in an ideal "drop-impact" state, whether there is sliding or centrifugal phenomenon, and the kinetic energy conversion rate of the grinding medium can be calculated through the trajectory of the grinding medium to determine whether the impact energy can be fully used to crush the ore. The image transmitted by the high-speed camera 12 is used to observe the spatial distribution of coarse particles and fine particles during the dry grinding process, and the slurry flow state during the wet grinding process, to observe whether it forms a uniform slurry, whether there is dry material accumulation or slurry splashing, to evaluate the grinding effect and optimize the experimental parameters.

[0056] The above-mentioned intelligent perception visualization multi-structure liner dry and wet dual-purpose grinding experimental device is used to present the microscopic motion characteristics of the ground material and the grinding medium under dry and wet grinding conditions. By changing the experimental parameters, replacing the mill cylinder, and replacing different liners, the changing laws of the grinding dynamic parameters and grinding effects are explored, which has supporting significance for the theoretical research and industrial application of grinding technology.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solutions of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An intelligent perception visualization multi-structure liner dry and wet dual-purpose grinding experimental device, characterized in that: include: The mill comprises a cylinder, a liner support seat and a detachable liner are provided inside the cylinder, a wet slurry inlet and outlet are provided on the surface of the cylinder, and an observation window and an end cover are provided on one side of the cylinder; The side of the cylinder away from the end cover is connected in sequence with a bearing assembly, a first coupling, a torque sensor, a second coupling, a reducer, and a motor, and the motor drives the drum to rotate through the reducer; Intelligent monitoring module, including sensors, signal collectors, computers, and high-speed cameras, used to monitor device operating parameters; The material receiving car and the slurry barrel are placed below the discharge port of the cylinder, and are used for collecting dry grinding products and storing wet grinding slurry respectively.

2. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to claim 1 is characterized by: The cylinder has a diameter of 200 mm or 400 mm and a length of 400 mm or 200 mm.

3. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to claim 2 is characterized by: The arc surface of the liner support seat fits with the inner wall of the cylinder, and the liner support seat is fixed in a circular shape inside the cylinder by bolts. The T-slot rail on the liner support seat is arranged along the axial direction of the cylinder. The detachable liner is wedged with the liner support seat by the T-slot rail. The detachable liner can be replaced with a triangular, rectangular, semicircular or corrugated structure.

4. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to claim 3 is characterized by: The wet slurry inlet and outlet are connected to the cylinder through threads. The wet slurry inlet and outlet are provided with a sealing cover and a high-strength wear-resistant steel filter plate, which is suitable for wet grinding process. The sealing covers on the feed side and the discharge side are sealed through threads. The filter plate is welded to the connecting end of the wet slurry inlet and outlet and the cylinder, and the filter hole size is smaller than the grinding medium size.

5. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to claim 4 is characterized by: The observation window is made of high-strength transparent glass and is arranged on the surface of the end cover. The end cover is hinged to the roller and is locked with the end surface of the cylinder by bolts.

6. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to claim 5 is characterized by: The bearing assembly includes a split bearing seat and an angular contact ball bearing, and the bearing is used to bear axial load; the first coupling and the second coupling are both plum blossom couplings, and the adapter device is frequently started and reversed; the motor is a servo motor, which can achieve speed control, high-precision motion control and rapid response; the reducer is a gear reducer, which is used in conjunction with the motor to reduce the speed and increase the torque.

7. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to claim 6 is characterized by: The sensors include motor status monitoring sensors, reducer status monitoring sensors, dynamic torque sensors, bearing status sensors, and mill output speed monitoring sensors. The signals are fed back to the computer via the bus through the collector to achieve equipment status monitoring, fault warning and experimental parameter analysis.

8. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to claim 7 is characterized by: The high-speed camera is closely matched with the high-strength transparent glass observation window to observe the movement state of the material and grinding medium inside the mill and the grinding process in real time.

9. An experimental method based on the intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. Select the mill size, liner shape and material, and grinding media according to the experimental requirements, assemble the experimental device, and place the mill horizontally; S2. For dry grinding, close the wet material inlet and outlet, add the mineral and grinding media through the end cap, tighten the end cap, start the device, and monitor the grinding process using a high-speed camera. The intelligent monitoring system collects speed and torque parameters. After the experiment is complete, open the end cap and collect the material onto the receiving vehicle. S3. If using wet grinding, add ore through the wet material inlet and outlet, tighten the end cap and sealing cover, start the device, and conduct real-time observation and parameter monitoring as for the dry method. After the experiment is completed, discharge the slurry into the slurry tank through the wet material outlet. S4. Compare the grinding products under different parameters and liner conditions, and analyze the influence of various factors on the grinding effect.

10. The intelligent perception visualization multi-structure liner wet and dry dual-purpose grinding experimental method according to claim 9 is characterized in that: During the experiment, a high-speed camera was used to observe the "drop-to-impact" state, trajectory, and kinetic energy conversion rate of the grinding medium, the spatial distribution of particles during dry grinding, and the slurry flow state during wet grinding. A computer processed the monitoring data and images to evaluate the grinding effect and optimize the experimental parameters.

Images