Visual ball milling platform device and use method thereof

Abstract

The invention discloses a visual ball-milling platform device and a using method thereof.The visual ball-milling platform device comprises a ball mill and a driving device used for driving the ball mill to rotate, and the ball mill comprises a cylinder and a visual window formed in the cylinder; the window comprises a first split part and a second split part, the first split part is fixedly arranged on the barrel, the second split part is hinged to the first split part, and sealing structures are arranged at the contact part of the first split part and the barrel and the contact part of the second split part and the barrel after the second split part is unfolded; according to the experimental ball milling platform device integrating monitoring, control and visualization functions, the experimental research efficiency and the data accuracy are improved, and powerful experimental support is provided for innovation and development of the ore grinding technology.

Description

Technical Field

[0001] The invention relates to the field of grinding equipment, and in particular to a visual ball milling platform device and a use method thereof. Background Art

[0002] The grinding process is to crush the ore from bulk form to the required particle size to create conditions for subsequent separation operations. In the field of experimental research, ball mill, as one of the key equipment, plays a vital role in the research of mineral processing and materials science.

[0003] The basic structure of a ball mill usually includes the feed / discharge port, transmission system (including motor, reducer, transmission shaft, etc.), and cylinder (including internal structure). During the grinding process, the ore is impacted and rubbed by the grinding media as the cylinder rotates, thereby achieving crushing. This process not only depends on the rotation speed of the cylinder, the type, size and filling rate of the grinding media, but also on the internal structure of the cylinder, such as the geometric parameters and quantity arrangement of the lifting bars, which directly affect the final grinding effect.

[0004] However, traditional experimental ball mills have obvious deficiencies in monitoring, control, and visualization. First, because the grinding process is essentially a "black box" system, researchers cannot directly observe the motion state inside the ball mill and the interaction between the medium and the material. Traditional methods can only infer the grinding effect through indirect means, such as measuring the particle size of the input and output materials. This method is not only inaccurate, but also unable to provide real-time feedback on dynamic changes in the grinding process. This invisibility increases the complexity of grinding process control and limits the in-depth understanding of the grinding mechanism. Secondly, during the operation of the ball mill, there are many challenges in the real-time monitoring and data collection of grinding parameters (such as speed, torque, temperature, acoustic energy, etc.). Traditional ball mills lack high-precision sensors and data acquisition systems, and cannot obtain and record these key parameters in real time. It is difficult to accurately evaluate energy efficiency and identify energy dissipation methods, which limits the effective control and optimization of grinding energy consumption.

[0005] Therefore, in order to improve the performance of the ball mill and meet the precise monitoring, control and visualization needs of researchers in grinding experiments, it is urgent to develop an experimental ball milling platform device that integrates monitoring, control and visualization functions. Such a device will help improve the efficiency of experimental research and the accuracy of data, and provide strong experimental support for the innovation and development of grinding technology. The present invention is proposed to solve the problems in the above-mentioned background technology and provide an innovative ball milling platform device for the field of experimental research. Summary of the invention

[0006] The purpose of the present invention is to provide a visualized ball milling platform device and a method of using the same, so as to solve the problems existing in the above-mentioned prior art and improve the efficiency of experimental research and the accuracy of data.

[0007] To achieve the above object, the present invention provides the following solutions:

[0008] A visualized ball milling platform device comprises a ball mill and a driving device for driving the ball mill to rotate, wherein the ball mill comprises a cylinder and a visualization window arranged on the cylinder, wherein the window comprises a first split part fixedly arranged on the cylinder and a second split part hinged to the first split part, and a sealing structure is arranged at a contact portion between the first split part and the cylinder and a contact portion between the second split part and the cylinder after the second split part is unfolded.

[0009] Preferably, the sealing structure comprises a groove provided at the contact position between the window and the cylinder body, and a waterproof pad is provided in the groove.

[0010] Preferably, the driving device comprises a motor, a transmission shaft having two ends respectively connected to the output end of the motor and the cylinder, and a torque sensor arranged on the transmission shaft, wherein the torque sensor is used to monitor the torque change of the transmission shaft.

[0011] Preferably, an acoustic sensor and an infrared temperature sensor are arranged on the outside of the cylinder, for receiving the sound wave signal and the temperature change generated during the grinding process respectively.

[0012] Preferably, it also includes a control system, which includes a data receiving and storage module, a data processing module and a user interface. The data receiving and storage module is used to collect and process the real-time data of the torque sensor, infrared temperature sensor and acoustic sensor. The user interface displays the real-time data of the torque sensor, infrared temperature sensor and acoustic sensor and provides regulation of the ball mill speed operating parameters.

[0013] Preferably, the method further comprises a high-speed camera arranged opposite to the window, wherein the high-speed camera is used to capture rapid movements during the ball milling process.

[0014] Preferably, the cylinder is detachably connected to the transmission shaft via screws.

[0015] Preferably, the inner wall of the cylinder is provided with a slot, and a lifting bar is embedded in the slot.

[0016] A method for using a visual ball milling platform device comprises the following steps:

[0017] Set the ball mill speed and grinding time;

[0018] The ball mill is started, the data receiving and storing module is used to collect and process the real-time data of the torque sensor, the infrared temperature sensor and the acoustic sensor, and the user interface displays the real-time data of the torque sensor, the infrared temperature sensor and the acoustic sensor;

[0019] Through high-speed camera, the dynamic behavior of grinding media and materials in the grinding process is observed in real time and the video data is transmitted to the computer in real time;

[0020] After the grinding is completed, the second split part is opened through the preset hinge structure, the steel balls and minerals are moved out of the cylinder through the opening, and the residual minerals inside are cleaned with water to separate the grinding products for subsequent particle size analysis;

[0021] The operator exports the grinding process data from the memory and transfers it to the computer.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] The present invention integrates the experimental ball milling platform device with monitoring, control and visualization functions, improves the efficiency of experimental research and the accuracy of data, and provides strong experimental support for the innovation and development of grinding technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the ball mill of the present invention;

[0027] Among them, 1. notebook; 2. motor; 3. controller; 4. torque meter; 5. acoustic sensor; 6. temperature sensor; 7. cylinder; 8. window; 9. high-speed camera; 10. waterproof gasket; 11. window; 12. lifting bar; 13. flange; 14. lifting bar fixing groove; 15. hinge. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a visualized ball milling platform device and a method of using the same, so as to solve the problems existing in the above-mentioned prior art and improve the efficiency of experimental research and the accuracy of data.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] refer to Figure 1 to Figure 2 A visualized ball milling platform device comprises a ball mill and a driving device for driving the ball mill to rotate, the ball mill comprises a cylinder and a visualization window arranged on the cylinder, the window comprises a first split part fixedly arranged on the cylinder and a second split part hinged to the first split part, a sealing structure is arranged at a contact position between the first split part and the cylinder and a contact position between the second split part and the cylinder after unfolding; the present invention integrates an experimental ball milling platform device with monitoring, control and visualization functions, improves the efficiency of experimental research and the accuracy of data, and provides strong experimental support for the innovation and development of grinding technology.

[0032] Furthermore, the barrel adopts a modular design, which supports quick replacement to meet different size requirements. In addition, the lifting bar is embedded in the slot, which not only speeds up the loading and unloading speed, but also avoids the sealing problem caused by screw fixing.

[0033] refer to Figure 2 The sealing structure includes a groove provided at the contact position between the window and the cylinder body and a waterproof pad provided in the groove.

[0034] Furthermore, the driving device includes a motor, a transmission shaft whose two ends are respectively connected to the output end of the motor and the cylinder, and a torque sensor arranged on the transmission shaft, and the torque sensor is used to monitor the torque change of the transmission shaft; the grinding input power is determined by the formula P=T×N / 9549, and is checked in combination with the current and voltage measurement data of the motor to ensure the accuracy of the power calculation, wherein P represents the mill power, T represents the mill torque, and N represents the cylinder speed

[0035] Furthermore, an acoustic sensor and an infrared temperature sensor are arranged on the outside of the cylinder to capture the acoustic wave signal and temperature change generated during the grinding process.声 =ρω 2 A 2 μ*2 and E 热 =cmΔT is used to determine the dissipation of acoustic energy and thermal energy during the grinding process.

[0036] Furthermore, it also includes a control system, which includes a data receiving and storage module, a data processing module and a user interface. The data receiving and storage module is used to collect and process the real-time data of the torque sensor, infrared temperature sensor and acoustic sensor, and the user interface displays the real-time data of the torque sensor, infrared temperature sensor and acoustic sensor and provides regulation of the ball mill speed operating parameters.

[0037] refer to Figure 1 , also includes a high-speed camera arranged opposite to the window, and the high-speed camera is used to capture the rapid movements during the ball milling process.

[0038] Furthermore, the cylinder body and the transmission shaft are detachably connected via screws.

[0039] refer to Figure 2 A card slot is provided on the inner wall of the cylinder, and a lifting bar is embedded in the card slot.

[0040] A method for using a visual ball milling platform device comprises the following steps:

[0041] Taking the industrial mill model 2.7×3.6m as an example, the design cylinder size is 540×720mm (reduced by 5 times), and the cylinder and the drive shaft are fixed with screws to complete the installation of the mill cylinder. Cylinder length L 筒 =720mm, diameter D 筒 =540mm, according to the formula V 净 =πr 2 L calculated that the net volume of the cylinder is 164.9L.

[0042] There are 10 sets of lifting bar slots preset inside the cylinder, select 10 sets of length L 槽 =720mm, width W 槽 =20mm, H 槽 = 20mm lifting strip. The lifting strip is fixed to the inner wall of the cylinder by inserting it into the slot. According to the formula V 有效 =V 净 -V 槽 The calculated effective volume of the cylinder is 162.0 L. In addition, the reserved slots are equipped with corresponding filling strips, and the number of lifting strips can be flexibly controlled by filling the unused slot positions.

[0043] Choose steel ball as grinding medium, take the medium filling rate of 35% as an example, according to the formula M 钢球 =V有效 ×δ 钢球 ×35% The required steel ball mass is 254kg, where δ 钢球 is the bulk density of the steel balls. At the same time, 5 kg of minerals and 2.5 L of water were added to control the grinding concentration to 67%.

[0044] According to the user interface, the mill speed is controlled to the critical speed 72% N 1 , according to the formula The critical speed of the cylinder is calculated to be 82 rpm, the speed of the mill is 59 rpm, and the grinding time is set to 3 minutes.

[0045] After the mill is started, the system begins to record sensor data in real time, including: current / voltage, torque, temperature and sound waves, which are transmitted to the internal memory through the data acquisition module and displayed in real time on the user interface.

[0046] The dynamic behavior of the grinding media and materials during the grinding process can be observed in real time by using a high-speed camera. The high-speed camera records video at a high frame rate and transmits the video data to a computer in real time for subsequent analysis.

[0047] After the grinding is completed, the observation window is partially opened through the preset hinge structure, the steel balls and minerals are moved out of the cylinder through the opening, and the residual minerals inside are cleaned with water, and the grinding products are separated for subsequent particle size analysis.

[0048] The operator exports the grinding process data from the memory and transfers it to the computer.

[0049] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A visual ball milling platform device, characterized in that: The invention comprises a ball mill and a driving device for driving the ball mill to rotate. The ball mill comprises a cylinder and a visualization window arranged on the cylinder. The window comprises a first split part fixedly arranged on the cylinder and a second split part hinged to the first split part. A sealing structure is arranged at a contact position between the first split part and the cylinder and a contact position between the second split part and the cylinder after the second split part is unfolded.

2. A visual ball milling platform device according to claim 1, characterized in that: The sealing structure comprises a groove provided at the contact position between the window and the cylinder body and a waterproof pad arranged in the groove.

3. A visual ball milling platform device according to claim 1, characterized in that: The driving device includes a motor, a transmission shaft with two ends respectively connected to the output end of the motor and the cylinder, and a torque sensor arranged on the transmission shaft, wherein the torque sensor is used to monitor the torque change of the transmission shaft.

4. A visual ball milling platform device according to claim 3, characterized in that: An acoustic sensor and an infrared temperature sensor are arranged on the outside of the cylinder, which are used to receive the sound wave signal and the temperature change generated during the grinding process respectively.

5. A visual ball milling platform device according to claim 4, characterized in that: It also includes a control system, which includes a data receiving and storage module, a data processing module and a user interface. The data receiving and storage module is used to collect and process the real-time data of the torque sensor, infrared temperature sensor and acoustic sensor. The user interface displays the real-time data of the torque sensor, infrared temperature sensor and acoustic sensor and provides regulation of the ball mill speed operating parameters.

6. A visualized ball milling platform device according to claim 5, characterized in that: Also included is a high-speed camera disposed opposite to the window, and the high-speed camera is used to capture rapid movements during the ball milling process.

7. The visual ball milling platform device according to claim 1, characterized in that: The cylinder body and the transmission shaft are detachably connected via screws.

8. A visual ball milling platform device according to claim 7, characterized in that: The inner wall of the cylinder is provided with a slot, and a lifting bar is embedded in the slot.

9. A method for using a visual ball milling platform device, characterized in that: The following steps are involved: Set the ball mill speed and grinding time; The ball mill is started, the data receiving and storing module is used to collect and process the real-time data of the torque sensor, the infrared temperature sensor and the acoustic sensor, and the user interface displays the real-time data of the torque sensor, the infrared temperature sensor and the acoustic sensor; Through high-speed camera, the dynamic behavior of grinding media and materials in the grinding process is observed in real time and the video data is transmitted to the computer in real time; After the grinding is completed, the second split part is opened through the preset hinge structure, the steel balls and minerals are moved out of the cylinder through the opening, and the residual minerals inside are cleaned with water to separate the grinding products for subsequent particle size analysis; The operator exports the grinding process data from the memory and transfers it to the computer.

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