Stirring apparatus and monitoring system thereof

Abstract

A stirring apparatus (100) and a monitoring system thereof, the stirring apparatus (100) comprising: a stirring barrel (10) used for accommodating materials; a stirring assembly (20) used for stirring materials in the stirring barrel (10); and a detection assembly (50) arranged on at least one of the stirring barrel (10) and the stirring assembly (20) and used for detecting an operation state signal of the stirring apparatus (100).

Description

Agitating device and monitoring system thereof

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410642655.2, filed on May 22, 2024, entitled “Agitating device and monitoring system thereof”, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of battery manufacturing, in particular to an agitating device and a monitoring system thereof. BACKGROUND

[0004] Batteries are widely used in various electric devices, such as electric vehicles, electric bicycles, electric aircrafts, electric ships, and the like.

[0005] The manufacturing process of power lithium batteries and energy storage batteries includes the manufacturing of battery slurry, which is a process of uniformly dispersing positive and negative active material powders, conductive agent powders, polymer binders, and additives in a solution to form a stable suspension. In this process, an agitating device is needed to agitate the materials.

[0006] However, the related art has the problem of being unable to monitor the state of the agitating device.

[0007] SUMMARY

[0008] The present application provides an agitating device and a monitoring system thereof, which can monitor the operating state of the agitating device.

[0009] In a first aspect, the present application provides an agitating device, comprising: an agitating barrel for containing materials; an agitating assembly for agitating the materials in the agitating barrel; and a detection assembly arranged in at least one of the agitating barrel and the agitating assembly and configured to detect an operating state signal of the agitating device.

[0010] According to the agitating device provided in the embodiments of the present application, the detection assembly for detecting the operating state signal of the agitating device is added to the agitating device, so that the operating state data of the agitating device can be detected in real time, and thus the operating state of the components in the agitating device can be monitored in real time.

[0011] In a possible implementation manner of the first aspect, the agitating assembly comprises an agitating paddle, and the detection assembly comprises a magnetic member arranged on the agitating paddle, the magnetic member being configured to generate a magnetic field.

[0012] In the embodiments of the present application, the magnetic member for generating a magnetic field is arranged on the agitating paddle, so that the operating state of the agitating paddle can be detected by detecting the magnetic field strength (e.g., magnetic flux).

[0013] In a possible implementation of the first aspect, the magnetic member is arranged inside the stirring paddle.

[0014] In the working process of the stirring device, the stirring barrel needs to contain certain materials. If the magnetic member is arranged outside the stirring paddle, the magnetic member and the materials will affect each other. In the embodiment of the present application, the magnetic member is arranged inside the stirring paddle, which can avoid the above-mentioned situation.

[0015] In a possible implementation of the first aspect, the detection assembly further comprises a magnetic induction sensor, and the magnetic induction sensor is arranged in the stirring barrel and is configured to detect the magnetic flux.

[0016] The magnetic member on the stirring paddle can generate a magnetic field, and the magnetic induction sensor can collect the magnetic flux, so as to receive / detect / induce the surrounding magnetic field strength. According to the magnetic flux collected by the magnetic induction sensor, the distance between the stirring paddle and the stirring barrel can be monitored.

[0017] In a possible implementation of the first aspect, the magnetic induction sensor is arranged on the outer wall of the stirring barrel.

[0018] In the working process of the stirring device, the stirring barrel needs to contain certain materials. If the magnetic induction sensor is arranged on the inner wall of the stirring barrel, on the one hand, the magnetic induction sensor and the materials will affect each other, and on the other hand, it is inconvenient to connect the magnetic induction sensor with the Ethernet. In the embodiment of the present application, by arranging the magnetic induction sensor on the outer wall of the stirring barrel, at least the above-mentioned two situations can be avoided.

[0019] In a possible implementation of the first aspect, the magnetic induction sensor and the magnet are located on the same horizontal plane. In this way, the offset of the stirring paddle to the stirring barrel can be determined according to the change amount of the magnetic flux collected by the magnetic induction sensor.

[0020] In a possible implementation of the first aspect, the magnetic induction sensor is further configured to convert the magnetic flux into a first electric signal and transmit the first electric signal to a server, and the server is configured to determine the offset of the stirring paddle to the inner wall of the stirring barrel according to the first electric signal. The magnetic induction sensor transmits the first electric signal to the server, and the server can collect the first electric signal from the magnetic induction sensor in real time, so as to realize real-time monitoring of the offset of the stirring paddle to the inner wall of the stirring barrel.

[0021] In a possible implementation of the first aspect, the stirring device comprises a target component, the target component comprises at least one of a bearing assembly, a gear, and a stirring barrel, at least a part of the stirring paddle is arranged in the stirring barrel, and the bearing assembly is connected to the gear and the stirring paddle.

[0022] The detection assembly further comprises an acceleration sensor, and the acceleration sensor is correspondingly arranged on the target component.

[0023] The acceleration sensor can collect acceleration information of the target component. When the target component is in a normal operation state, the amplitude of the acceleration of the target component will fluctuate within a normal range. Therefore, according to the acceleration information of the target component collected by the acceleration sensor, whether the operation state of the target component is abnormal can be monitored, so that real-time monitoring of the operation state of the target component is realized.

[0024] In a possible implementation of the first aspect, the bearing assembly includes a bearing and a bearing base located outside the stirring barrel, the bearing is arranged on the bearing base, and the bearing is connected with the gear and the stirring paddle. The acceleration sensor includes a first acceleration sensor, and the target component includes the bearing. The first acceleration sensor is arranged on the bearing base. The acceleration collected by the first acceleration sensor can be considered as the acceleration of the bearing and the gear. In addition, the first acceleration sensor is arranged on the bearing base, which is beneficial to ensuring the installation stability of the first acceleration sensor.

[0025] In a possible implementation of the first aspect, the acceleration sensor includes a second acceleration sensor, and the target component includes the stirring barrel. The second acceleration sensor is arranged on the outer wall of the stirring barrel.

[0026] During the operation of the stirring device, a certain amount of material needs to be contained in the stirring barrel. If the second acceleration sensor is installed on the inner wall of the stirring barrel, on the one hand, the second acceleration sensor and the material will affect each other, and on the other hand, it is inconvenient to connect the second acceleration sensor with the Ethernet. In the embodiment of the present application, the second acceleration sensor is arranged on the outer wall of the stirring barrel, which can at least avoid the above two situations.

[0027] In a possible implementation of the first aspect, the acceleration sensor is further configured to convert the collected acceleration into a second electric signal and transmit the second electric signal to a server. The server is configured to determine whether the target component has an abnormal operation state according to the second electric signal. The acceleration sensor transmits the second electric signal to the server, and the server can collect the second electric signal from the acceleration sensor in real time, so as to realize real-time monitoring of the operation state of the target component.

[0028] Based on the same inventive concept, in a second aspect, the embodiments of the present application also provide a monitoring system, including a server and a stirring device, the stirring device including:

[0029] a stirring barrel configured to contain material;

[0030] a stirring assembly configured to stir the material in the stirring barrel;

[0031] a sensor configured to collect at least one of magnetic flux and acceleration. In the case where the sensor is configured to detect the magnetic flux, the stirring device further includes a magnet configured to generate a magnetic field.

[0032] a server configured to acquire the signal collected by the sensor and determine the state of the stirring device according to the signal.

[0033] In a possible implementation of the second aspect, the server is further configured to compare the signal collected by the sensor with a threshold value, and send different reminding information according to different comparison results, wherein the reminding information comprises at least one of alarm information, early warning information and shutdown information, and the threshold values corresponding to the different reminding information are different.

[0034] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0035] The features, advantages and technical effects of the exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0036] FIG. 1 is a structural schematic diagram of a stirring device according to an embodiment of the present application;

[0037] FIG. 2 is a structural schematic diagram of a stirring paddle in a stirring device according to an embodiment of the present application;

[0038] FIG. 3 is a schematic diagram of magnetic flux according to an embodiment of the present application;

[0039] FIG. 4 is an enlarged structural schematic diagram of the K region in FIG. 1 according to an embodiment of the present application;

[0040] FIG. 5 is a structural schematic diagram of a monitoring system according to an embodiment of the present application;

[0041] FIG. 6 is a schematic diagram of acceleration amplitude of a bearing position according to an embodiment of the present application;

[0042] FIG. 7 is a schematic diagram of acceleration amplitude of a stirring barrel position according to an embodiment of the present application;

[0043] FIG. 8 is a schematic diagram of distance change between a stirring paddle and an inner wall of a stirring barrel according to an embodiment of the present application.

[0044] Legend: 100, stirring device; 10, stirring barrel; 20, stirring assembly; 50, detection assembly; 21, stirring paddle; 220, bearing assembly; 22, bearing; 23, gear; 24, bearing base; 30, sensor; 31, magnetic induction sensor; 32, acceleration sensor; 321, first acceleration sensor; 40, magnetic part; 200, server. DETAILED DESCRIPTION

[0045] So that the purposes, technical solutions and advantages of the embodiments of the present application are more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as those commonly understood by one of ordinary skill in the art to which this application belongs; the terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, rather than to describe a particular order or primary and secondary relationship.

[0047] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection", "connection", "attachment" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] The stirring device is needed to stir the material in the manufacturing process of the battery slurry. The stirring of the slurry is divided into dry mixing, kneading, dispersion, slow stirring and the like. However, the existing portable inspection instrument or point inspection method cannot accurately analyze the equipment failure, and cannot identify the early equipment failure and the failure in the equipment operation.

[0049] In order to solve the above technical problems, the present application provides a stirring device and a monitoring system and a monitoring method thereof, which will be described in detail below with reference to the accompanying drawings.

[0050] Firstly, the stirring device provided by the application embodiments will be introduced below.

[0051] As shown in FIG. 1, the stirring device 100 provided by the application embodiments includes a stirring barrel 10, a stirring assembly 20 and a detection assembly 50.

[0052] The stirring tank 10 is used to contain materials. For example, the materials include materials used to form battery slurry, such as positive and negative active material powders, conductive agent powders, polymer binders, additives, and solutions.

[0053] The stirring assembly 20 is used to stir the materials in the stirring tank 10. At least part of the components of the stirring assembly 20 can be used to rotate, thereby mixing the materials.

[0054] For example, the stirring tank 10 includes a tank wall and a tank bottom, which are connected to each other to form a container. The stirring assembly 20 can include a stirring paddle 21 and a stirring shaft (not shown in the figure) used to drive the stirring paddle 21 to rotate, at least part of the components of the stirring paddle 21 extending into the stirring tank 10.

[0055] The detection assembly 50 is arranged on at least one of the stirring tank 10 and the stirring assembly 20 and is used to detect an operating state signal of the stirring device.

[0056] For example, the detection assembly 50 can be arranged on the stirring tank 10. For another example, the detection assembly 50 can be arranged on the stirring assembly 20. For yet another example, the detection assembly 50 can be arranged on both the stirring tank 10 and the stirring assembly 20.

[0057] According to the stirring device provided in the embodiments of the present application, by adding the detection assembly used to detect the operating state signal of the stirring device in the stirring device, the operating state data of the stirring device can be detected in real time during the operation of the stirring device, thereby the operating state of the components in the stirring device can be monitored in real time.

[0058] The implementation details of the stirring device of the present application are described below. The following content is provided only for the convenience of understanding the implementation details and is not essential for implementing the present solution.

[0059] In some embodiments, the detection assembly 50 can include a sensor 30, which can be used to collect at least one of the corresponding magnetic flux and acceleration of the stirring device. In addition, in the case where the sensor 30 is used to collect the magnetic flux, the detection assembly 50 can further include a magnetic member 40, which can be used to generate a magnetic field.

[0060] As an example, the stirring device can include at least one sensor 30 used to collect the corresponding magnetic flux of the stirring device.

[0061] As another example, the stirring device can include at least one sensor 30 used to collect the corresponding acceleration of the stirring device.

[0062] As yet another example, the stirring device can include at least two sensors 30, one of which is used to collect the magnetic flux and the other of which is used to collect the acceleration.

[0063] For example, the magnetic member 40 can be arranged on one component of the stirring device, and the sensor 30 for collecting magnetic flux can be arranged on the other component. When the distance between the two components changes, the magnetic flux collected by the sensor 30 also changes. Thus, the distance between the two components can be monitored according to the change of the magnetic flux collected by the sensor 30, so that whether the distance between the components is normal can be monitored.

[0064] For another example, the sensor 30 for collecting acceleration can be arranged on one component of the stirring device. During the operation of the stirring device, the amplitude of the acceleration of the component will be within a normal range under normal circumstances. If the amplitude of the acceleration collected by the sensor 30 is not within the normal range, it can be monitored that the running state of the component is abnormal.

[0065] According to the stirring device provided in the embodiments of the present application, the sensor for collecting at least one of the magnetic flux and the acceleration is added to the stirring device, so that the magnetic flux data and / or the acceleration data can be collected in real time, and thus the distance between the components in the stirring device and / or the running state of the components can be monitored in real time.

[0066] For example, during the process of preparing the slurry of the lithium battery, a certain distance needs to be kept between the stirring paddle and the inner wall of the stirring barrel during the preparation of the slurry. However, when the stirring device is abnormally operated, the stirring paddle will be scraped against the inner wall of the stirring barrel, which mainly manifests in the following aspects:

[0067] 1. When the shear force provided by the stirring is greater than the cohesion of the particle aggregation, the original aggregation is dispersed and dispersed in the solvent. When the shear force provided by the stirring is less than the cohesion of the particle aggregation, the stirring paddle is deformed to cause the stirring paddle to deviate from the stirring barrel, so as to be scraped against the inner wall of the stirring barrel.

[0068] 2. During the operation of the stirring shaft and the bearing, the rotating shaft has relative vibration. After the equipment is operated for a long time, the bearing tungsten gold is damaged due to fatigue, the dynamic and static parts are rubbed, and the like, so that the stirring hollow shaft deviates, so that the stirring paddle deviates, and the stirring paddle is scraped against the inner wall of the stirring barrel.

[0069] After the stirring paddle is scraped against the inner wall of the stirring barrel, the metal particles (Particle) in the slurry will be caused. There is no effective detection method or the detection method is lagging behind, and there is a risk of metal particles flowing out, so that the performance of the battery and the safety of the battery are affected. The existing planned maintenance stirring device or passive maintenance stirring device will increase the operation and maintenance cost of the equipment.

[0070] In some embodiments, referring to Figs. 1 and 2, the stirring assembly 20 includes a stirring paddle 21, and the detection assembly includes a magnetic member 40, which can be arranged on the stirring paddle 21. As an example, the magnetic member 40 can be arranged inside the stirring paddle 21. The sensor 30 can include a magnetic induction sensor 31, which is arranged on the stirring barrel 10. The magnetic member 40 on the stirring paddle 21 can generate a magnetic field, and the magnetic induction sensor 31 can collect the magnetic flux, so as to receive / detect / induce the surrounding magnetic field intensity. According to the magnetic flux collected by the magnetic induction sensor 31, the distance between the stirring paddle 21 and the stirring barrel 10 can be monitored.

[0071] In order to clearly illustrate the monitoring of the distance between the components according to the magnetic flux, please refer to Fig. 3. In Fig. 3, the position of the stirring paddle is represented by the position of the magnetic member 40, and the position of the stirring barrel is represented by the magnetic induction sensor 31. In addition, the magnetic flux passing through the magnetic induction sensor is represented by lines in Fig. 3. During the operation of the stirring device, the stirring paddle 21 rotates (for example, the stirring paddle 21 can rotate and revolve), and the position of the stirring paddle (magnetic member 40) changes from a1 to a2, and the magnetic flux collected by the corresponding magnetic induction sensor 31 changes from Φ1 to Φ2. Among them, the position a1 can represent the position of the stirring paddle (magnetic member 40) in the normal state, and the position a2 can represent the position of the stirring paddle after deformation or deviation. The position difference Δa (Δa = a1-a2) of the stirring paddle (magnetic member 40) and the change amount ΔΦ (ΔΦ = Φ1-Φ2) of the magnetic flux collected by the magnetic induction sensor 31 change proportionally (as shown in Fig. 3). That is, the size of the magnetic flux collected by the magnetic induction sensor 31 changes with the distance between the stirring paddle and the stirring barrel, so the size of the magnetic flux collected by the magnetic induction sensor 31 can be used to monitor the distance between the stirring paddle and the stirring barrel.

[0072] For example, a 1mm position change corresponds to a magnetic flux change of about 10^4uT. It should be noted that the corresponding relationship between the size of the magnetic flux and the position change is based on the actual calibration result of each stirring device d.

[0073] For example, the magnetic member 40 includes a high-strength magnet, which can generate a high-strength magnetic field. For example, the magnetic field 40 can generate a magnetic field strength of thousands of tesla or tens of thousands of microtesla, so that the magnetic flux collected by the magnetic induction sensor 31 changes in the case that the distance between the stirrer and the stirring barrel changes.

[0074] In some embodiments, the magnetic induction sensor 31 is further configured to convert the collected magnetic flux into a first electrical signal and transmit the first electrical signal to a server, and the server is configured to monitor the deviation of the stirring paddle to the inner wall of the stirring barrel according to the first electrical signal.

[0075] For example, when the magnetic induction sensor 31 detects a change in the magnetic flux, the magnetic induction sensor 31 can convert the changed magnetic flux into a potential difference, and can amplify and convert the potential difference into a measurable voltage or current signal, so that the magnetic induction sensor 31 completes the information collection of the change in the magnetic field strength. Further, the voltage or current signal is a first electrical signal, and the magnetic induction sensor 31 transmits the first electrical signal to the server, and the server can collect the first electrical signal from the magnetic induction sensor 31 in real time, so as to realize real-time monitoring of the offset of the stirring paddle to the inner wall of the stirring tank. The server can also be referred to as a monitoring platform.

[0076] For example, when the distance between the stirring paddle and the inner wall of the stirring tank reaches a set minimum distance, the device can be alarmed, warned, or stopped, and a production maintenance personnel can be prompted to perform maintenance, so as to ensure the safety of the stirring process.

[0077] For example, the magnetic induction sensor 31 can be connected to the Ethernet through a signal line.

[0078] In some embodiments, as shown in FIG. 1, the magnetic induction sensor 31 can be arranged on the outer wall of the stirring tank 10. During the operation of the stirring device, a certain amount of material needs to be contained in the stirring tank 10. If the magnetic induction sensor 31 is installed on the inner wall of the stirring tank 10, on the one hand, the magnetic induction sensor 31 and the material will affect each other, and on the other hand, it is not convenient to connect the magnetic induction sensor 31 and the Ethernet. In the embodiments of the present application, by arranging the magnetic induction sensor 31 on the outer wall of the stirring tank 10, at least the above two situations can be avoided.

[0079] In some embodiments, the magnetic induction sensor 31 and the magnetic member 40 can be located on the same horizontal plane. In this way, the offset of the stirring paddle to the stirring tank can be determined according to the change in the magnetic flux collected by the magnetic induction sensor 31.

[0080] It should be noted that the above examples take the distance between the stirring paddle and the stirring tank as an example, and in other examples, the distance between other components can also be monitored, and a magnet is only needed to be installed on one of the two components whose distance needs to be monitored, and a magnetic induction sensor is only needed to be installed on the other component.

[0081] The key components in the stirring device, such as the shaft, gear (for example, stirring shaft, dispersion shaft, hollow shaft, central shaft, sun gear, planetary gear), etc., have abnormal operation conditions, such as sudden wear, abnormal noise, etc. Abnormal operation will bring great challenges to the safety management of the equipment on site and continuous production. In addition, the stirring tank may also have abnormal operation conditions. Therefore, it is also important to monitor the operation state of the key components of the shaft and gear in the stirring device and the stirring tank.

[0082] In some embodiments, the components that need to be monitored for operating status can be targeted components. Referring to FIGS. 1 and 4, the mixing device includes targeted components, which can include at least one of the bearing assembly 220, the gear 23, and the mixing bowl 10. At least a portion of the mixing paddle is disposed within the mixing bowl, and the bearing assembly connects the gear and the mixing paddle. The sensor 30 includes an acceleration sensor 32, and the acceleration sensor 32 is correspondingly disposed on the targeted component.

[0083] The acceleration sensor 32 is capable of collecting acceleration information of the targeted component. When the targeted component is in a normal operating state, the amplitude of the acceleration of the targeted component will fluctuate within a normal range. Therefore, according to the acceleration information of the targeted component collected by the acceleration sensor 32, it can be monitored whether the operating status of the targeted component is abnormal, thereby achieving real-time monitoring of the operating status of the targeted component.

[0084] It should be noted that FIGS. 1 and 4 illustrate the bearing 22 of the main mixing shaft and the gear as the targeted components. In other examples, the bearings of the dispersion shaft, the hollow shaft, and the central shaft can also be targeted components, and the sun gear and the planetary gear can also be targeted components.

[0085] The gear 23 is installed on the bearing 22. For example, the motor can drive the gear to rotate through a belt, and then the gear can drive the bearing to rotate, and the bearing can drive the mixing paddle to rotate. The gear 23 and the bearing 22 are linked components, and the acceleration states of the gear 23 and the bearing 22 can be considered to be substantially the same.

[0086] For example, at least one of the bearing 22 and the mixing bowl 10 is correspondingly provided with the acceleration sensor 32. FIGS. 1 and 4 illustrate that the acceleration sensor 32 is installed near the bearing 22, which does not limit that the acceleration sensor cannot be installed on the mixing bowl 10.

[0087] As an example, the mixing device can include at least one acceleration sensor 32, which is correspondingly disposed on the bearing assembly 220, for collecting acceleration data of the bearing assembly 220 and the gear 23.

[0088] As another example, the mixing device can include at least one acceleration sensor 32, which is correspondingly disposed on the mixing bowl 10, for collecting acceleration data of the mixing bowl 10.

[0089] As yet another example, the mixing device can include at least two acceleration sensors 32. One of the acceleration sensors 32 is correspondingly disposed on the bearing assembly 220, for collecting acceleration data of the bearing assembly 220 and the gear 23, and the other acceleration sensor 32 is correspondingly disposed on the mixing bowl 10, for collecting acceleration data of the mixing bowl 10.

[0090] In some embodiments, the acceleration sensor 32 is further configured to convert the collected acceleration into a second electrical signal and transmit the second electrical signal to the server, and the server is configured to determine whether the target component is in abnormal operation according to the second electrical signal.

[0091] The acceleration sensor generally consists of a mass, a damper, an elastic element and a sensitive element. When the object is displaced or the speed changes, the mass will generate an inertial force, which acts on the sensitive element, causing it to deform or shift, thereby changing the physical state of the damper and the elastic element. This change can be output in the form of an electrical signal, thereby achieving measurement of acceleration. Further, the acceleration sensor transmits the second electrical signal to the server, and the server can collect the second electrical signal from the acceleration sensor in real time, thereby achieving real-time monitoring of the operation state of the target component.

[0092] For example, the magnetic induction sensor 31 can transmit the first electrical signal and the speed sensor can transmit the second electrical signal to the same server through different signal channels.

[0093] For example, the server can analyze, convert, process, etc. the data obtained thereby. For example, when the amplitude of the acceleration of the target component is greater than its corresponding normal range, it can be determined that the target component is in abnormal operation, which can include wear, abnormal noise, etc. Device alarm / warning / shutdown processing can be performed, and production maintenance personnel can be prompted to perform maintenance, thereby ensuring the safety of the stirring pulp-making process.

[0094] For example, the acceleration amplitude of the bearing, gear and bearing seat is within the range of 0.2 m / s^2 under normal conditions, and the acceleration amplitude of the bearing, gear and bearing seat is greater than 0.2 m / s^2 when it is in abnormal operation.

[0095] For example, the acceleration amplitude of the stirring barrel is within the range of 15 m / s^2 under normal conditions, and the acceleration amplitude of the stirring barrel is greater than 15 m / s^2 when it is in abnormal operation.

[0096] For example, the acceleration sensor 32 can communicate with the server through Ethernet. For example, the acceleration sensor 32 can be connected to the Ethernet through a signal line.

[0097] In some embodiments, referring to FIGS. 1 and 4, the acceleration sensor 32 includes a first acceleration sensor 321, the target component includes a bearing assembly 220, the bearing assembly 220 includes a bearing 22 and a bearing seat 24 located outside the stirring barrel, the bearing 22 is arranged on the bearing seat 24, and the bearing is connected to the gear and the stirring paddle. The bearing 22 is fixed by the bearing seat 24, the bearing seat 24 is located outside the stirring barrel 10, and the first acceleration sensor 321 is arranged on the bearing seat 24.

[0098] As introduced above, the key components of the stirring device include bearings, gears and the like, and the bearings and gears are linked. The bearing base 24 can be used to fix the bearing 22, so as to ensure the stability and reliability of the stirring device during operation. The bearing base 24 is also linked with the bearing 22 and the gear. Therefore, the first acceleration sensor 321 is arranged on the bearing base 24, and the acceleration collected by the first acceleration sensor 321 can be considered as the acceleration of the bearing and the gear. In addition, the first acceleration sensor 321 is arranged on the bearing base 24, which is beneficial to ensure the installation stability of the first acceleration sensor 321.

[0099] In some embodiments, the acceleration sensor includes a second acceleration sensor (not shown in the figure), which is arranged on the outer wall of the stirring barrel 10. By arranging the second acceleration sensor, it can be monitored in real time whether the stirring barrel appears abnormal operation. In addition, during the operation of the stirring device, a certain material needs to be contained in the stirring barrel 10. If the second acceleration sensor is installed on the inner wall of the stirring barrel 10, on the one hand, the second acceleration sensor and the material will affect each other, and on the other hand, it is not convenient to connect the second acceleration sensor with the Ethernet. In the embodiments of the present application, by arranging the second acceleration sensor on the outer wall of the stirring barrel 10, at least the above two situations can be avoided.

[0100] It can be understood that, in the case that the magnetic member is arranged on the stirring paddle, the magnetic induction sensor is arranged on the stirring barrel, and the acceleration sensor is correspondingly arranged on the bearing and the gear, the magnetic induction detection technology and the gear / bearing operation state monitoring are combined, the real-time monitoring of the distance from the stirring paddle to the inner wall of the stirring barrel and the operation state of the stirring gear / bearing can be realized, based on reliable and real device operation data, the current operation state of the stirring device is judged and the future state is predicted, the failure of the stirring device can be prevented in advance, and the pulp flow when the stirring paddle scrapes the inner wall of the stirring barrel is prevented, so as to improve the quality of the pulp delivery and reduce the cost of equipment failure.

[0101] Based on the same inventive concept, the embodiments of the present application also provide a monitoring system. As shown in FIG. 5, the monitoring system provided by the embodiments of the present application includes a server 200 and the stirring device 100 in any one of the above embodiments. As shown in FIG. 1, the stirring device 100 includes a stirring barrel 10, a stirring assembly 20 and a detection assembly 50.

[0102] The stirring barrel 10 is used to contain material. The stirring assembly 20 is used to stir the material in the stirring barrel 10. The detection assembly 50 is arranged on at least one of the stirring barrel and the stirring assembly and is used to detect the operation state signal of the stirring device.

[0103] According to the stirring device provided in the embodiments of the present application, the detection assembly for detecting the running state signal of the stirring device is added in the stirring device, so that the running state data of the stirring device can be detected in real time, and thus the running state of the components in the stirring device can be monitored in real time.

[0104] For example, the detection assembly 50 includes the sensor 30, which can be used to collect at least one of the magnetic flux and the acceleration of the stirring device, and in addition, in the case where the sensor 30 is used to collect the magnetic flux, the stirring device can further include the magnetic member 40, which can be used to generate a magnetic field.

[0105] According to the monitoring system provided in the embodiments of the present application, the sensor for collecting at least one of the magnetic flux and the acceleration is added in the stirring device, and the server can acquire the magnetic flux data and / or the acceleration data collected by the sensor in real time, so that the distance between the components in the stirring device and / or the running state of the components can be monitored in real time.

[0106] It can be understood that the monitoring system provided in the embodiments of the present application has the beneficial effects of the stirring device provided in the above-mentioned embodiments, and specific descriptions can be made with reference to the specific descriptions of the stirring device in the above-mentioned embodiments, which will not be repeated here.

[0107] In some embodiments, the server is further configured to compare the running state signal detected by the detection assembly with a threshold value, and send different reminder information according to different comparison results, wherein the reminder information includes at least one of alarm information, early warning information and shutdown information, and the threshold values corresponding to different reminder information are different.

[0108] For example, in the case where the sensor is used to collect the magnetic flux, the threshold value can be the distance between the stirring paddle and the inner wall of the stirring barrel. The server can send at least one of the alarm information, the early warning information and the shutdown information according to different distances between the stirring paddle and the inner wall of the stirring barrel.

[0109] For another example, in the case where the sensor is used to collect the acceleration, the threshold value can be the acceleration amplitude corresponding to the target component. Different early warning values, alarm values and shutdown values can be set according to different running states of the bearings, gears and the like, so as to facilitate the closed-loop control of the stirring device.

[0110] As an example, the server can be further configured to control the display screen to display target information, and the target information includes the change information of the acceleration amplitude of the target component with time and / or the change information of the distance between the stirring paddle and the inner wall of the stirring barrel.

[0111] For example, FIG. 6 is an acceleration amplitude diagram of a bearing position according to an embodiment of the present application. FIG. 7 is an acceleration amplitude diagram of a stirring barrel position according to an embodiment of the present application. In FIG. 6, the dashed box Q1 represents a normal fluctuation range of the acceleration amplitude, and the dashed boxes Q2 and Q3 represent abnormal vibration of the acceleration amplitude. In FIG. 7, the dashed box Q4 represents a normal fluctuation range of the acceleration amplitude, and the dashed boxes Q5 and Q6 represent abnormal vibration of the acceleration amplitude. In FIG. 6, the normal range of the acceleration amplitude of the bearing position is 0.2 m / s 2 For example, in FIG. 7, the normal range of the acceleration amplitude of the stirring barrel position is 15 m / s 2

[0112] FIG. 8 is a diagram of distance variation between a stirring paddle and an inner wall of a stirring barrel according to an embodiment of the present application. In FIG. 8, the stirring paddle offset (vector) varies by X1 mm, X2 mm, X3 mm, X4 mm, and so on.

[0113] It can be understood that the monitoring method provided by the embodiments of the present application has the beneficial effects of the stirring device provided by the above-mentioned embodiments. For details, refer to the specific description of the stirring device in the above-mentioned embodiments, which will not be repeated here.

[0114] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0115] Although the present application has been described with reference to the preferred embodiments, various improvements can be made and parts thereof can be replaced with equivalents without departing from the scope of the present application, and in particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.​

Claims

1. A mixing device, comprising: a mixing tank for containing material; a mixing assembly for mixing the material in the mixing tank; a detection assembly arranged on at least one of the mixing tank and the mixing assembly and configured to detect an operating state signal of the mixing device.

2. The apparatus of claim 1, wherein, The mixing assembly comprises a mixing paddle, and the detection assembly comprises a magnetic element arranged on the mixing paddle and configured to generate a magnetic field.

3. The apparatus of claim 2, wherein, The magnetic element is arranged inside the mixing paddle.

4. The apparatus of claim 2, wherein, The detection assembly further comprises a magnetic induction sensor arranged on the mixing tank and configured to detect a magnetic flux. 5.The mixing device of claim 4, wherein the magnetic induction sensor is arranged on an outer wall of the mixing tank. 6.The mixing device of claim 4, wherein the magnetic induction sensor and the magnetic element are located on the same horizontal plane. 7.The mixing device of claim 4, wherein the magnetic induction sensor is further configured to convert the magnetic flux into a first electric signal and transmit the first electric signal to a server, and the server is configured to determine a deviation of the mixing paddle from an inner wall of the mixing tank according to the first electric signal.

8. The apparatus of any one of claims 1 to 7, wherein, The mixing assembly comprises a target component, the target component comprises at least one of a bearing assembly, a gear and the mixing tank, at least a part of the mixing paddle is arranged in the mixing tank, and the bearing assembly connects the gear and the mixing paddle. The detection assembly further comprises an acceleration sensor, and the acceleration sensor is arranged on the target component correspondingly. 9.The mixing device of claim 8, wherein the bearing assembly comprises a bearing and a bearing base arranged outside the mixing tank, the bearing is arranged on the bearing base, and the bearing connects the gear and the mixing paddle, and the bearing base is provided with a first acceleration sensor. 10.The mixing device of claim 8, wherein the acceleration sensor comprises a second acceleration sensor, and the target component comprises the mixing tank, and the second acceleration sensor is arranged on an outer wall of the mixing tank. 11.The mixing device of claim 8, wherein the acceleration sensor is further configured to convert the collected acceleration into a second electric signal and transmit the second electric signal to a server, and the server is configured to determine whether the target component has an abnormal operating condition according to the second electric signal. 12.A monitoring system, comprising a server and the mixing device of any one of claims 1-11. The server is configured to acquire the operating state signal of the mixing device and determine the state of the mixing device according to the operating state signal. 13.The monitoring system of the mixing device of claim 12, wherein the server is further configured to compare the operating state signal with a threshold value and send different prompt information according to different comparison results, wherein the prompt information comprises at least one of alarm information, early warning information and shutdown information, and the threshold values corresponding to different prompt information are different. 14.The monitoring system of the mixing device of claim 13, wherein ​ The operating state signal comprises magnetic flux, and the threshold value comprises a distance between a stirring paddle and an inner wall of a stirring barrel in the stirring device.

15. The monitoring system of the stirring device according to claim 13, wherein, The operating state signal comprises acceleration of a target component in the stirring device, and the threshold value comprises an acceleration amplitude.

16. The monitoring system of the stirring device according to claim 12, wherein, The server is further configured to control a display screen to display target information, and the target information comprises information about a change of the acceleration amplitude of the target component in the stirring device over time and / or information about a change of the distance between the stirring paddle and the inner wall of the stirring barrel.

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