Automatic detection device for size distribution of carbon black aggregate

Abstract

The invention relates to the technical field of photoelectric centrifugal sedimentation detection equipment, in particular to a carbon black aggregate size distribution automatic detection device. A liquid storage module is communicated with a rotating groove and is used for storing detection liquid; the remaining amount detection module is used for detecting the remaining amount of detection liquid of the liquid storage module; the automatic filling module is communicated with the liquid storage module and is used for filling the detection liquid of the liquid storage module into the rotating groove; the automatic cleaning module is arranged on the inner wall of the rotating groove and used for cleaning the rotating groove; the waste liquid treatment module communicates with the rotating groove and is used for collecting waste liquid of the rotating groove. Ethanol, triton, dodecane, a test sample solution and cleaning water are automatically filled according to a program through the liquid storage module and the automatic filling module, manual operation is replaced, and personal errors are reduced; automatic cleaning is achieved through the automatic cleaning module, and the detection efficiency is improved; residual monitoring is achieved through the residual detection module, liquid is supplemented in time, detection interruption caused by liquid exhaustion is avoided, and continuous detection is achieved.

Description

Technical Field

[0001] This application relates to the field of photoelectric centrifugal sedimentation detection equipment technology, and in particular to an automated detection device for the size distribution of carbon black aggregates. Background Technology

[0002] Carbon black is a key industrial raw material in rubber, plastics, and ink industries. The size distribution of its aggregates directly affects product performance, therefore, it requires precise testing using a photoelectric centrifuge according to the GB / T 3780.27-2020 standard. Currently, the testing process requires manual intervention to sequentially add ethanol, Triton, dodecane, and the test sample. After testing, manual cleaning is also necessary. The spinning solution consists of water and surfactants, and the pH is adjusted to between 9.0 and 10.0 using 0.1 mol / L NaOH.

[0003] However, existing technologies have significant drawbacks: on the one hand, when manually measuring liquids, the accuracy of measuring small doses such as 0.1 mL of dodecane and 0.25 mL of test samples is easily affected by factors such as operating techniques and experience, resulting in large errors. Moreover, each test requires repeated manual operation, leading to low testing efficiency. On the other hand, repeated cleaning is required after testing, each time requiring manual injection of water with a syringe. After cleaning, waste liquid needs to be manually extracted with a syringe. Incomplete cleaning can lead to residual liquid in the rotating tank, which in turn affects the accuracy of subsequent tests and cannot meet the requirements for testing efficiency and accuracy in batch testing scenarios.

[0004] To address the aforementioned issues, this invention proposes an automated detection device for carbon black aggregate size distribution. By integrating multiple modules working collaboratively, it achieves automatic liquid filling, residual monitoring, automatic cleaning, and waste liquid collection, effectively improving detection efficiency and accuracy while reducing errors caused by human intervention. Summary of the Invention

[0005] This application provides an automated detection device for the size distribution of carbon black aggregates, which solves the problem of large extraction error of detection liquid in the prior art.

[0006] This application provides an automated detection device for the size distribution of carbon black aggregates, comprising: A liquid storage module, connected to the rotating tank, is used to store the test liquid; The remaining liquid detection module is used to detect the remaining liquid level in the liquid storage module. An automatic dispensing module, connected to a liquid storage module, is used to inject the detection liquid from the liquid storage module into the rotating tank. An automatic cleaning module is installed on the inner wall of the rotating tank for cleaning the rotating tank; The waste liquid treatment module is connected to the rotary tank and is used to collect the waste liquid from the rotary tank.

[0007] In one possible design, the liquid storage module includes multiple storage bottles, which are transparent bottles with sealing caps at the mouths and graduation lines on the sidewalls. Each storage bottle is connected to a rotating tank via an automatic filling module.

[0008] In one possible design, the automatic dispensing module includes an electromagnetic reversing valve with multiple inlets, each inlet connected to a corresponding storage bottle via a dispensing pipe. Each dispensing pipe is equipped with a peristaltic pump. The outlet of the electromagnetic reversing valve is connected to the inlet of the rotating tank via an inlet pipe. The electromagnetic reversing valve switches channels to pressurize the test liquid in the corresponding storage bottle and pump it into the rotating tank via the peristaltic pump.

[0009] In one possible design, the automatic filling module also includes a vibration pump that contacts the outer wall of the inlet pipe. The vibration pump causes the liquid adhering to the inner wall of the inlet pipe to flow into the rotating tank through vibration.

[0010] In one possible design, the remaining volume detection module includes a liquid level sensor located at the bottom of the storage bottle, which is used to collect the depth of the detection liquid inside the storage bottle.

[0011] In one possible design, the level detection module also includes an alarm that sounds when the level of the detection liquid in the storage bottle falls below a threshold.

[0012] In one possible design, the automatic cleaning module includes a cleaning nozzle and a first air pump. The cleaning nozzle and the first air pump are respectively installed on the inner wall of the rotating tank. The cleaning nozzle is connected to a water source, and the first air pump is connected to an air source.

[0013] In one possible design, the cleaning nozzles include multiple nozzles, each of which is mounted on the inner wall of the rotating tank via a rotating seat. The rotating seat can drive the cleaning nozzles to rotate, thereby rinsing different positions in the rotating tank.

[0014] In one possible design, the side wall of the liquid inlet pipe is provided with an air inlet, the axis of the air inlet is at an acute angle to the axis of the liquid inlet pipe and is inclined in the direction of liquid flow. The automatic cleaning module also includes a second air pump, the inlet of which is connected to an air source and the outlet of which is connected to the air inlet, for drying the liquid in the liquid inlet pipe.

[0015] In one possible design, the waste liquid treatment module includes a negative pressure pump, a filter box, and a waste liquid tank. The negative pressure pump is installed at the drain port of the rotating tank and is connected to the waste liquid tank through a drain pipe. The filter box is installed inside the waste liquid tank.

[0016] The beneficial effects of this application are as follows: The automated detection device for carbon black aggregate size distribution disclosed in this application automatically adds ethanol, Triton, dodecane, test sample solution, and cleaning water according to a program through a liquid storage module and an automatic dispensing module, replacing manual operation and reducing human error; it also achieves automatic cleaning through an automatic cleaning module, reducing the time for a single cleaning cycle from 20 minutes to 5 minutes; and it monitors the remaining liquid through a residual detection module, replenishing the liquid in a timely manner to avoid detection interruption due to liquid depletion, thus meeting the requirement for continuous batch sample testing.

[0017] A precision peristaltic pump with a flow accuracy of ±0.5% is used to replace the manual syringe for measurement, which is both accurate and fast. The vibration of the pump removes residual liquid from the inner wall of the pipe, thus avoiding the situation where the actual amount of test liquid entering the rotating tank is less than the amount pumped out due to residual test liquid on the pipe wall, thereby improving the detection accuracy.

[0018] The automatic cleaning module cleans and dries the rotating tank and the inner wall of the pipe, thoroughly removing residues from the rotating tank and pipe, and avoiding interference from previous samples to subsequent tests.

[0019] Sealed liquid storage bottles are used to prevent exposure to volatile liquids. Waste liquids are collected in a unified manner through a dedicated storage tank, filtered through a filter membrane, and then treated to reduce the risk of exposure to harmful substances such as ethanol and dodecane to operators. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of the automated detection device for carbon black aggregate size distribution provided in the embodiments of this application; Figure 2 This is a schematic diagram of the liquid inlet of the liquid inlet pipe.

[0022] Figure label: 1. Storage bottle; 21. Filling pipe; 22. Peristaltic pump; 23. Solenoid directional valve; 24. Liquid inlet pipe; 241. Air inlet; 25. Vibration pump; 26. Vibration transmission ring; 3. Rotary tank; 41. Cleaning nozzle; 42. First air pump; 43. Second air pump; 51. Negative pressure pump; 52. Filter box; 53. Waste liquid tank; 6. Liquid level sensor. Detailed Implementation

[0023] The technical solutions of this application will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] The following is combined Figures 1-2 The image illustrates an automated detection device for carbon black aggregate size distribution provided in an embodiment of this application.

[0025] Reference Figure 1 As shown, the automated carbon black aggregate size distribution detection device provided in this embodiment includes a liquid storage module, a balance detection module, an automatic filling module, an automatic cleaning module, a waste liquid treatment module, and a central control module. The liquid storage module is connected to the rotating tank 3 and is used to store the detection liquid; the balance detection module is used to detect the remaining amount of detection liquid in the liquid storage module; the automatic filling module is connected to the liquid storage module and is used to inject the detection liquid from the liquid storage module into the rotating tank 3; the automatic cleaning module is disposed on the inner wall of the rotating tank 3 and is used to clean the rotating tank 3; the waste liquid treatment module is connected to the rotating tank 3 and is used to collect the waste liquid from the rotating tank 3; the central control module is electrically connected to the balance detection module, the automatic filling module, the automatic cleaning module, and the waste liquid treatment module respectively, and is used to control each module to operate according to a preset program.

[0026] Reference Figure 1 As shown, in some embodiments, the liquid storage module includes multiple storage bottles 1, each made of transparent quartz glass for easy observation of the remaining liquid level. Each storage bottle 1 has a sealing cap to prevent liquid evaporation. The side wall of each storage bottle 1 has graduations for easy monitoring of the liquid level during filling. Each storage bottle 1 is connected to the rotating tank 3 via an automatic filling module. Specifically, there are five storage bottles 1, each corresponding to a different test sample solution, a cleaning water solution, and a different detection solution. Specifically, storage bottle 1 stores ethanol, storage bottle 2 stores Triton, storage bottle 3 stores dodecane, storage bottle 4 stores the test sample solution, and storage bottle 5 stores the cleaning water.

[0027] Specifically, storage bottle 1 is used to store ethanol, with a capacity of 12 mL and a single test volume of 1.0 mL; storage bottle 2 is used to store Triton, with a capacity of 170 mL and a single test volume of 15 mL; storage bottle 3 is used to store dodecane, with a capacity of 1.2 mL and a single test volume of 0.1 mL; storage bottle 4 is used to store the test sample solution, with a capacity of 1 mL and a single test volume of 0.25 mL; and storage bottle 5 is used to store cleaning water, with a capacity of 660 mL and a single cleaning volume of 20 mL.

[0028] The storage bottle 1, used to store the test solution, is configured with a capacity of ten test doses plus 10% of the single test dose to ensure continuous testing. The storage bottle 1, used to store the test sample solution, is configured with a capacity of four test sample doses to ensure that the test sample solution can be tested at least three times.

[0029] In some specific embodiments, the automatic dispensing module includes a dispensing pipe 21, a peristaltic pump 22, an electromagnetic reversing valve 23, and an inlet pipe 24. The electromagnetic reversing valve 23 has multiple inlets, each of which is connected to the corresponding storage bottle 1 through the dispensing pipe 21. Each dispensing pipe 21 is equipped with a peristaltic pump 22. The outlet of the electromagnetic reversing valve 23 is connected to the inlet of the rotating tank 3 through the inlet pipe 24. The electromagnetic reversing valve 23 switches channels to pump the detection liquid in the corresponding storage bottle 1 into the rotating tank 3 after being pressurized by the peristaltic pump 22.

[0030] Specifically, five peristaltic pumps 22 are installed, each corresponding to one of the five storage bottles 1. The flow accuracy of the peristaltic pumps 22 is ±0.5%, and the single dispensing volume of the peristaltic pumps 22 is preset through the central control module. The dispensing pipes 21 and the inlet pipes 24 are both made of polytetrafluoroethylene (PTFE), which is chemically resistant and non-absorbent. The inner diameter of the dispensing pipes 21 corresponding to ethanol, dodecane, and the test sample solution is 0.5 mm, while the inner diameter of the dispensing pipes 21 corresponding to Triton and cleaning water is 2 mm, ensuring smooth delivery of liquids of different viscosities.

[0031] In some specific embodiments, the automatic filling module also includes a vibration pump 25. A vibration transmission ring 26 is sleeved on the outer wall of the liquid inlet pipe 24. The vibration pump 25 is connected to the vibration transmission ring 26 on the outer wall of the liquid inlet pipe 24. The vibration pump 25 causes the liquid adhering to the inner wall of the liquid inlet pipe 24 to flow into the rotating tank 3 through vibration, so as to avoid measurement errors caused by liquid residue.

[0032] Furthermore, the remaining liquid detection module includes a liquid level sensor 6 and an alarm. The liquid level sensor 6 is located on the outer bottom of the storage bottle 1, and the alarm is used to sound an alarm when the depth of the detection liquid in the storage bottle 1 is lower than a threshold. Specifically, the infrared liquid level sensor 6 is used to collect the depth of the detection liquid in the storage bottle 1. The alarm includes an LED indicator, a buzzer, and an operation screen prompt. The LED indicator corresponds to the number of each storage bottle 1 and flashes red to indicate the level. The buzzer sounds an alarm at 1-second intervals, and the operation screen displays the text prompt "XX liquid level is low, please replenish".

[0033] Specifically, the liquid level sensor 6 sets a threshold based on the liquid level height corresponding to the amount of liquid detected in a single test. When the liquid level height collected by the liquid level sensor 6 is lower than the threshold, the alarm is triggered.

[0034] In some specific embodiments, the automatic cleaning module includes a water source, cleaning nozzles 41, an air source, a first air pump 42, and a second air pump 43. The water source is filtered water, and the air source is dried air. The cleaning nozzles 41 and the first air pump 42 are respectively installed on the inner wall of the rotating tank 3. The cleaning nozzles 41 are connected to the water source, and the first air pump 42 is connected to the air source. Specifically, there are four cleaning nozzles 41 and four first air pumps 42, symmetrically installed above the inner wall of the rotating tank 3. Each cleaning nozzle 41 is mounted on the inner wall of the rotating tank 3 via a rotating seat. The rotating seat can drive the cleaning nozzle 41 to rotate, spraying a ring-shaped water flow to rinse different parts of the rotating tank 3, ensuring thorough cleaning of the tank wall. The air pumps can dry the cleaned rotating tank 3.

[0035] In some embodiments, a second air pump 43 is also included. An air inlet 241 is provided on the side wall of the liquid inlet pipe 24. The axis of the air inlet 241 is at an acute angle to the axis of the liquid inlet pipe 24, for example, at a 30° angle, and is inclined in the direction of liquid flow. The inlet of the second air pump 43 is connected to an air source, and the outlet of the second air pump 43 is connected to the air inlet 241 on the side wall of the liquid inlet pipe 24, for drying the cleaning liquid remaining in the liquid inlet pipe 24.

[0036] In some embodiments, the waste liquid treatment module includes a negative pressure pump 51, a filter box 52, and a waste liquid tank 53. The negative pressure pump 51 is installed at the drain port of the rotating tank 3 and is connected to the waste liquid tank 53 through a drain pipe. The filter box 52 is installed in the middle of the drain pipe. The negative pressure pump 51 can generate a negative pressure of 0.05 MPa and is started after the test and after each cleaning to pump the waste liquid in the rotating tank 3 to the waste liquid tank 53. The filter box has a built-in 10 μm pore size filter membrane to filter particulate impurities in the waste liquid, such as carbon black residue, to prevent pipe blockage. The waste liquid tank 53 is equipped with a manual drain valve to discharge the waste liquid.

[0037] The central control module uses a PLC controller and is equipped with a 7-inch touch screen. It allows for preset detection parameters, such as dispensing sequence, dispensing volume, number of cleaning cycles, and centrifugation parameters. The screen displays status information such as remaining liquid levels, dispensing progress, number of cleaning cycles, and waste liquid level. It automatically records data such as the time, liquid usage, and number of cleaning cycles for each test, and supports USB export.

[0038] The workflow of the automated detection device for carbon black aggregate size distribution in this application is as follows: Add the corresponding test solution to each storage bottle 1 to the mark. Add ethanol to 12 mL for storage bottle 1, Triathlon to 170 mL for storage bottle 1, dodecane to 1.2 mL for storage bottle 1, test sample solution to 1 mL for storage bottle 1, and cleaning water to 660 mL for storage bottle 1. Ensure that the level sensors 6 detect the remaining volume normally. Select the carbon black detection program on the operation screen and confirm the detection parameters, for example, the addition sequence is "ethanol → Triathlon → dodecane → test sample", the number of cleaning cycles is three, and the centrifugation parameters are set according to the carbon black type, for example, 8000 r / min-11000 r / min for hard carbon black and 4000 r / min-6500 r / min for soft carbon black. Before the test, run the machine at the selected speed for 30 minutes to warm up.

[0039] The central control module sends instructions to the No. 1 peristaltic pump 22 and the solenoid reversing valve 23. The No. 1 pump draws 1.0 mL of ethanol, switches to the ethanol channel through the reversing valve, and delivers it to the rotary tank 3 through the inlet pipe 24. The vibration pump 25 starts to shake off the ethanol adhering to the inner wall of the inlet pipe 24 into the rotary tank 3. After the filling is completed, the rotary tank 3 starts to rotate centrifugally at the set speed. After centrifugation and stabilization, the central control module controls the second air pump 43 to air dry the inlet pipe 24. Then, the second peristaltic pump 22 draws 15 mL of Triton, the electromagnetic reversing valve 23 switches to the Triton channel, injects Triton into the rotating tank 3, and the vibration pump 25 starts again. After the dodecane is stabilized by adding the cyclohexane, the inlet pipe 24 is dried, the peristaltic pump 22 draws 0.1 mL of dodecane, the electromagnetic reversing valve 23 is switched to the dodecane channel, and the dodecane is injected into the rotary tank 3. After injection, the rotary tank 3 is kept centrifuged for 3 min. After dodecane addition is completed, the inlet pipe 24 is dried, and the peristaltic pump 22 draws 0.25 mL of test sample solution and injects it into the rotating tank 3. The vibration pump 25 is started, and the computer begins to collect particle size distribution data. The equipment continues to run until the turbidity is close to the baseline and then stops. If the baseline is not reached within 1 hour, the rotation speed is increased and the test is repeated, with a maximum rotation speed of 11000 r / min.

[0040] After the inspection is completed, the central control module automatically starts the cleaning program and repeats the following operation three times: Peristaltic pump 22 draws 20 mL of cleaning water, and electromagnetic reversing valve 23 switches to the cleaning water channel. The cleaning water cleans the inner walls of the filling pipe 21 and the liquid inlet pipe 24 before being injected into the rotating tank 3. Then, the cleaning nozzle 41 injects water from the water tank into the rotating tank 3. The rotating seat drives the cleaning nozzle 41 to rotate, rinsing the inner wall of the rotating tank 3 in all directions. The rotating tank 3 rotates at a low speed of 3000 r / min for 30 seconds, and the nozzle continuously sprays water. After the rotation stops, the negative pressure pump 51 starts, and the cleaning waste liquid in the rotating tank 3 is filtered through the drain pipe and the filter box 52 and then pumped to the waste liquid storage tank. Finally, the first air pump 42 blows 0.1 MPa of room temperature dry air into the rotating tank 3 for 10 seconds, and the second air pump 43 blows dry air into the liquid inlet pipe 24 through the air inlet 241 to complete the air drying.

[0041] After a single test and cleaning is completed, the central control module automatically determines the remaining amount of each liquid. If the remaining amount is greater than or equal to the amount used in the single test, the next test will begin automatically. If the remaining amount of any liquid is less than the amount used in the single test, the LED red light will flash, the buzzer will sound an alarm, the operation screen will prompt for liquid replenishment, and the test will be paused.

[0042] After completing 10 tests, the instrument will automatically indicate that 10 tests have been completed and that you should check the liquid and waste liquid tanks.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An automated detection device for the size distribution of carbon black aggregates, characterized in that, include: A liquid storage module, connected to the rotating tank, is used to store the test liquid; The remaining liquid detection module is used to detect the remaining liquid level in the liquid storage module. An automatic dispensing module, connected to the liquid storage module, is used to inject the detection liquid from the liquid storage module into the rotating tank; An automatic cleaning module is installed on the inner wall of the rotating tank for cleaning the rotating tank; The waste liquid treatment module is connected to the rotating tank and is used to collect the waste liquid from the rotating tank.

2. The automated detection device for carbon black aggregate size distribution according to claim 1, characterized in that, The liquid storage module includes multiple storage bottles, which are transparent bottles with sealed caps at the mouths and graduation lines on their sidewalls. Each storage bottle is connected to the rotating trough via the automatic filling module.

3. The automated detection device for carbon black aggregate size distribution according to claim 2, characterized in that, The automatic dispensing module includes an electromagnetic reversing valve with multiple inlets. Each inlet is connected to a corresponding storage bottle via a dispensing pipe. Each dispensing pipe is equipped with a peristaltic pump. The outlet of the electromagnetic reversing valve is connected to the inlet of the rotating tank via an inlet pipe. The electromagnetic reversing valve switches channels to pump the test liquid in the corresponding storage bottle into the rotating tank after being pressurized by the peristaltic pump.

4. The automated detection device for carbon black aggregate size distribution according to claim 3, characterized in that, The automatic filling module also includes a vibration pump, which is in contact with the outer wall of the inlet pipe. The vibration pump causes the liquid adhering to the inner wall of the inlet pipe to flow into the rotating tank through vibration.

5. The automated detection device for carbon black aggregate size distribution according to claim 4, characterized in that, The remaining volume detection module includes a liquid level sensor, which is disposed at the bottom of the storage bottle and is used to collect the depth of the detection liquid in the storage bottle.

6. The automated detection device for carbon black aggregate size distribution according to claim 5, characterized in that, The remaining volume detection module also includes an alarm, which is used to issue an alarm when the depth of the detection liquid in the storage bottle is below a threshold.

7. The automated detection device for carbon black aggregate size distribution according to any one of claims 36, characterized in that, The automatic cleaning module includes a cleaning nozzle and a first air pump. The cleaning nozzle and the first air pump are respectively installed on the inner wall of the rotating tank. The cleaning nozzle is connected to the water source, and the first air pump is connected to the air source.

8. The automated detection device for carbon black aggregate size distribution according to claim 7, characterized in that, The cleaning nozzles include multiple nozzles, each of which is mounted on the inner wall of the rotating tank via a rotating base. The rotating base can drive the cleaning nozzles to rotate, thereby rinsing different positions of the rotating tank.

9. The automated detection device for carbon black aggregate size distribution according to claim 7, characterized in that, The side wall of the liquid inlet pipe is provided with an air inlet. The axis of the air inlet is at an acute angle to the axis of the liquid inlet pipe and is inclined in the direction of liquid flow. The automatic cleaning module also includes a second air pump. The inlet of the second air pump is connected to an air source, and the outlet of the second air pump is connected to the air inlet, for drying the liquid in the liquid inlet pipe.

10. The automated detection device for carbon black aggregate size distribution according to any one of claims 36, characterized in that, The waste liquid treatment module includes a negative pressure pump, a filter box, and a waste liquid tank. The negative pressure pump is installed at the drain port of the rotating tank and is connected to the waste liquid tank through a drain pipe. The filter box is installed inside the waste liquid tank.

Images