Grinding system capable of monitoring product quality on line

Abstract

The utility model relates to a grinding system capable of monitoring product quality on line, the grinding system comprises a grinding unit, a detection unit, a dilution flushing unit, a waste liquid storage unit and a product filling unit, the detection unit is connected to the dilution flushing unit and the waste liquid storage unit, and the grinding unit comprises a dispersion tank, a solid feeder, a grinding tank assembly and a transfer tank; the grinding tank assembly is connected to the dispersion tank, the solid feeder and the transfer tank, the detection unit comprises a first sampler, a viscometer, a dilution cavity, a second sampler, a particle size analyzer and a third diaphragm pump which are connected in sequence, the dilution cavity is connected to the waste liquid storage unit, and the particle size analyzer is connected to the waste liquid storage unit through the third diaphragm pump. And the detection unit is used for quality detection and runs simultaneously with the grinding operation of the grinding unit. According to the grinding system, through mutual cooperation of the grinding unit and the detection unit, grinding operation and product detection in the production process can be carried out at the same time, and the product quality is guaranteed.

Description

Technical Field

[0001] The present application relates to a grinding system, and in particular to a grinding system capable of online monitoring of product quality. Background Art

[0002] Generally, pigment dispersions need to go through at least two main stages of preparation: dispersion and grinding. After dispersion, the pigment dispersions need to be repeatedly ground to grind the pigment dispersions into finished products with appropriate particle sizes. However, in the current production and preparation process, the pigment dispersions need to be dispersed first, and then the operator moves the color paste barrel to the grinder for grinding. The ground pigment dispersions are then transferred to a turnover cylinder for storage and then wait for further grinding. This grinding method requires the cooperation of at least two turnover cylinders, which makes it difficult to connect the material pipes and has low grinding efficiency.

[0003] At the same time, in the production process of pigment dispersions such as inks and coatings, in addition to meeting the requirements of large-scale production in a relatively closed environment, it is also necessary to monitor various material indicators in real time during the grinding process to ensure product quality. The current grinding system cannot meet this requirement. Utility Model Content

[0004] In order to overcome the above-mentioned defects, the present application provides a grinding system that can monitor product quality online. Through the mutual cooperation of the grinding unit and the detection unit, the grinding system can carry out grinding operations and product detection simultaneously during the production process and adjust the grinding operation status according to the real-time detection results of the detection unit, thereby ensuring the quality of the product.

[0005] The technical solution adopted by this application to solve its technical problems is:

[0006] A grinding system capable of online monitoring of product quality comprises a grinding unit, a detection unit, a dilution and flushing unit, a waste liquid storage unit and a product filling unit, wherein the grinding unit is respectively connected to the detection unit, the dilution and flushing unit, the waste liquid storage unit and the product filling unit, and the detection unit is respectively connected to the dilution and flushing unit and the waste liquid storage unit. The grinding unit comprises a dispersion tank, a solid feeder, a grinding tank assembly and a transfer tank, and the grinding tank assembly is respectively connected to the dispersion tank, the solid feeder and the transfer tank. The detection unit comprises a first sampler, a viscometer, a dilution chamber, a second sampler, a particle size analyzer and a third diaphragm pump connected in sequence, the dilution chamber is connected to the waste liquid storage unit, and the particle size analyzer is connected to the waste liquid storage unit via the third diaphragm pump. The detection unit is used for quality detection and operates simultaneously with the grinding operation of the grinding unit.

[0007] Optionally, the grinding unit also includes a first diaphragm pump, the grinding jar assembly includes a first grinding jar, a second grinding jar and a third grinding jar, the first grinding jar, the transfer jar, the second grinding jar and the third grinding jar are connected in sequence, the third grinding jar is connected to the first grinding jar through a reflux pipe, the reflux pipe is provided with the first diaphragm pump, the dilution and flushing unit is connected to the first grinding jar, the third grinding jar is connected to the waste liquid storage unit, and the transfer tank, the second grinding jar and the third grinding jar are all respectively connected to the detection unit.

[0008] Optionally, the dilution and flushing unit includes a solvent tank and a third sampler, the solvent tank is connected to the dilution chamber through the third sampler, and the solvent tank is connected to the grinding unit.

[0009] Optionally, the waste liquid storage unit includes a waste liquid tank and a second diaphragm pump, and the waste liquid tank is provided with a first discharge port and a second discharge port, the first discharge port is close to the top of the waste liquid tank, and the second discharge port is close to the bottom of the waste liquid tank, and the first discharge port is connected to the detection unit through the second diaphragm pump.

[0010] Optionally, a grinding and crushing component is provided in the grinding jar assembly, and grinding media is stored in the grinding jar assembly. A filter is provided at the discharge end of the grinding jar assembly, and stirring components are provided in the dispersion tank, the transfer tank and the dilution chamber for material mixing.

[0011] Optionally, the solid feeder comprises a screw feeding tube.

[0012] Optionally, the viscometer includes a viscosity cup and a viscosity tester, the viscosity cup is used to hold the material to be tested, the bottom of the viscosity cup is provided with an opening for discharging the material, and the viscosity tester extends below the horizontal liquid level of the material in the viscosity cup to complete the viscosity test.

[0013] Optionally, the particle size analyzer is provided with a sample inlet, a sample outlet and a test bench, the test bench is provided with a feed inlet, the sample inlet is located at the feed inlet, the sample outlet is connected to the bottom of the test bench through the feed inlet, the test bench is connected to a rotating motor, the rotating motor can drive the test bench to rotate, a detection head and a light source are provided inside the particle size analyzer, and the sample outlet is connected to the waste liquid storage unit through a third diaphragm pump.

[0014] Optionally, a PLC control display unit is further included, and the PLC control display unit is electrically connected to the grinding unit, the detection unit, the dilution and flushing unit, the waste liquid storage unit and the product filling unit.

[0015] The beneficial effects of this application are:

[0016] (1) The dispersion tank, grinding tank assembly, and transfer tank in the grinding unit of the present application are connected in series, so that multiple grindings can be performed with one feeding, thereby improving the grinding efficiency. In addition, the grinding operation is carried out in a relatively sealed environment, preventing the volatilization of organic matter and the pollution of dust to the production environment, ensuring that there is no impurity pollution, and thus improving product quality;

[0017] (2) The viscometer and particle size analyzer in the detection unit of the present application can detect the viscosity, particle size and particle size distribution of the product being ground and feed the data results back to the PLC control display unit, thereby enabling real-time monitoring of the product quality at each stage of the grinding process;

[0018] (3) In the present application, the grinding unit and the detection unit cooperate with each other, so that the grinding operation and product detection can be carried out simultaneously during the production process, and the grinding operation status can be adjusted according to the real-time detection results of the detection unit, thereby avoiding the suspension of production due to the need for detection during production. The operator can remotely control the production progress through the PLC control display unit, saving production time and labor costs, improving production efficiency and ensuring product production stability;

[0019] (4) In the present application, the cleaning process controls the solvent tank and the waste liquid tank through the PLC control display unit to transport the solvent or the supernatant of the waste liquid as a cleaning agent to the grinding unit and the detection unit, wherein the supernatant of the waste liquid is only used as a cleaning agent for preliminary cleaning. The waste liquid can be recycled, which reduces the generation of waste solvent and reduces the cost of waste liquid treatment. In addition, the process can be directly controlled by the PLC control display unit, and there is no need to open the device for manual cleaning, which optimizes the cleaning operation process and saves labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the overall structure of the grinding system in this application;

[0021] Figure 2 A schematic diagram of the viscometer in this application;

[0022] Figure 3 A simplified diagram of the particle size analyzer in this application;

[0023] Figure 4 A simplified diagram of the waste liquid tank in this application;

[0024] In the picture: 100-PLC control display unit,

[0025] 200-grinding unit, 210-dispersion tank, 220-solid feeder, 230-first grinding tank, 240-transfer tank, 250-second grinding tank, 260-third grinding tank, 270-first diaphragm pump,

[0026] 300-Detection unit, 310-First sampler, 320-Viscometer, 321-Viscosity cup, 322-Viscosity tester, 323-Opening, 330-Dilution chamber, 340-Second sampler, 350-Particle size analyzer, 351-Inlet tube, 352-Outlet tube, 353-Test bench, 354-Rotating motor, 360-Third diaphragm pump,

[0027] 400-dilution and flushing unit, 410-solvent tank, 420-third sampler, 500-waste liquid storage unit, 510-waste liquid tank, 511-first discharge port, 512-second discharge port, 520-second diaphragm pump, 600-product filling unit. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in this application are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the following drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] Example: Figure 1-4As shown, a grinding system capable of online monitoring of product quality includes a grinding unit 200, a detection unit 300, a dilution and flushing unit 400, a waste liquid storage unit 500, and a product filling unit 600. The grinding unit 200 is respectively connected to the detection unit 300, the dilution and flushing unit 400, the waste liquid storage unit 500, and the product filling unit 600. The detection unit 300 is respectively connected to the dilution and flushing unit 400 and the waste liquid storage unit 500. The grinding unit 200 includes a dispersion tank 210, a solid feeder 220, a grinding tank assembly, and a transfer tank. 240, the grinding jar assembly is respectively connected to the dispersion tank 210, the solid feeder 220, and the transfer tank 240. The detection unit 300 includes a first sampler 310, a viscometer 320, a dilution chamber 330, a second sampler 340, a particle size analyzer 350, and a third diaphragm pump 360, which are connected in sequence. The dilution chamber 330 is connected to the waste liquid storage unit 500, and the particle size analyzer 350 is connected to the waste liquid storage unit 500 via the third diaphragm pump 360. The detection unit 300 is used for quality inspection and operates simultaneously with the grinding operation of the grinding unit 200. The grinding jar assembly includes at least two grinding jars, and the product filling unit 600 is used for storing and filling finished products. The dispersion tank 210 is used to pre-disperse the liquid raw material to obtain a pre-dispersion, which is then transported to the grinding tank assembly. The solid feeder 220 directly delivers the solid raw material to the grinding tank assembly. The grinding tank assembly is used to mix the pre-dispersion and solid raw material and grind them to obtain a mixture. The transfer tank 240 is used to receive the mixture. The viscometer 320 is used to test the viscosity of the sample in the grinding unit 200. The particle size analyzer 350 is used to analyze the particle size of the sample in the grinding unit 200. The dilution chamber 330 is used to dilute the sample and send it to the particle size analyzer 350. The dilution and flushing unit 400 is used to supply flushing solvent to the grinding unit 200 and dilution solvent to the detection unit 300. The waste liquid storage unit 500 is used to collect waste liquid from the grinding unit 200 and the detection unit 300. The product filling unit 600 is used to fill the qualified product processed by the grinding unit 200. In this application, the detection unit 300 can be used to perform online and real-time inspection of the semi-finished products and finished products in the grinding unit 200 to monitor the quality of the product in real time.

[0032] During production, in this application, liquid materials such as solvents, surfactants, and additives are added to the dispersion tank 210 to disperse and form a uniform pre-dispersion, and then the pre-dispersion enters the grinding tank assembly. At the same time, the powdered pigment enters the grinding tank assembly through the solid feeder 220, is mixed with the pre-dispersion and ground to obtain a mixed material. The mixed material enters the transfer tank 240 for temporary storage and waiting for detection. The detection unit 300 performs viscosity and particle size analysis on the mixed material. If the test result does not meet the preset standard, the mixed material enters the grinding tank assembly again for grinding until the test result meets the preset discharge standard. The qualified mixed material enters the product filling unit 600 for filling and discharging, and then the dilution and flushing unit 400 uses a solvent to flush the grinding unit 200 and the detection unit 300. The waste generated after flushing enters the waste liquid storage unit 500. In the present application, the grinding unit 200 includes a dispersion tank, a grinding tank assembly, and a transfer tank. Each feed is ground multiple times, thereby improving the grinding efficiency. In addition, the grinding operation is carried out in a relatively sealed environment, thereby preventing the volatilization of organic matter and the pollution of dust to the production environment, ensuring that the product is free of impurity contamination, and improving the quality of the product. Through the mutual cooperation between the grinding unit and the detection unit, the grinding operation and product detection can be carried out simultaneously during the production process, and the grinding operation status can be adjusted according to the real-time detection results of the detection unit, thereby avoiding the suspension of production due to the need for detection during production, saving production time and labor costs, improving production efficiency, and also ensuring the production stability of the product.

[0033] The first sampler 310 is connected to the transfer tank 240, the second grinding tank 250, and the third grinding tank 260 via sampling tubes. Depending on the grinding process, the first sampler 310 can sample from different tanks and transport the sampled material to the viscometer 320 for testing. Specifically, the first sampler 310 is equipped with multiple sampling tubes, each corresponding to a different tank. After the viscosity of the material is tested, it enters the dilution chamber 330. The solvent in the dilution buffer unit 400 enters the dilution chamber 330 to dilute the material. The second sampler 340 draws the diluted material and transports it to the particle size analyzer 350 for particle size analysis. The remaining dilution liquid and waste liquid generated during the testing process enter the waste liquid storage unit 500 for recycling.

[0034] like Figure 1As shown, the grinding unit 200 further includes a first diaphragm pump 270, and the grinding jar assembly includes a first grinding jar 230, a second grinding jar 250, and a third grinding jar 260. The first grinding jar 230, the transfer jar 240, the second grinding jar 250, and the third grinding jar 260 are connected in sequence. The third grinding jar 260 is connected to the first grinding jar 230 via a reflux pipe, and the reflux pipe is provided with the first diaphragm pump 270. The dilution and flushing unit 400 is connected to the first grinding jar 230, and the third grinding jar 260 is connected to the waste liquid storage unit 500. The transfer jar 240, the second grinding jar 250, and the third grinding jar 260 are all respectively connected to the detection unit 300. Each grinding jar is provided with a feed port and a discharge port. The feed port of the first grinding jar 230 is divided into a liquid feed port and a solid feed port. The liquid feed port is connected to the dispersion tank 210, and the solid feed port is connected to the solid feeder 220. The transfer tank 240 is used to temporarily store the material that has undergone preliminary grinding. If the material in the third grinding tank 260 fails the inspection, the material in the third grinding tank 260 can be returned to the first grinding tank 230 through the first diaphragm pump 270 for repeated grinding, and the direct inspection result meets the standard.

[0035] like Figure 1 As shown, the dilution and flushing unit 400 includes a solvent tank 410 and a third sampler 420. The solvent tank 410 is connected to the dilution chamber 330 via the third sampler 420, and the solvent tank 410 is connected to the grinding unit 200. The solvent tank 410 is connected to the first grinding tank 230 and the first sampler 310. The solvent tank 410 stores a cleaning solvent. During the detection process, the solvent in the solvent tank 410 enters the dilution chamber through the third sampler 420 to dilute the sample. During the cleaning process, the solvent in the solvent tank 410 enters the first grinding tank 230 and the first sampler 310 for cleaning.

[0036] like Figure 1 and Figure 4 As shown, Figure 4The arrows in the figure indicate the flow direction of the material. The waste liquid storage unit 500 includes a waste liquid tank 510 and a second diaphragm pump 520. The waste liquid tank 510 is provided with a first discharge port 511 and a second discharge port 512. The first discharge port 511 is close to the top of the waste liquid tank 510, where a feed port is provided. The second discharge port 512 is close to the bottom of the waste liquid tank 510. The first discharge port 511 is connected to the detection unit 300 via the second diaphragm pump 520. That is, the first discharge port 511 is connected to the first sampler 310 via the second diaphragm pump 520. After the test is completed, the dilution liquid to be tested is extracted by the sampling tube and transported to the waste liquid tank 510. All the test steps are completed. The waste liquid generated during the test process, such as the waste liquid in the dilution chamber and the particle size analyzer, is all collected and stored in the waste liquid tank 510. The waste liquid is allowed to stand in the waste liquid tank 510, and the large particles and agglomerates are precipitated due to gravity. The clear liquid layer on the upper layer of the waste liquid tank 510 can enter the detection unit 300 through the second diaphragm pump 520 to perform preliminary cleaning of the detection unit 300. The second discharge port 512 is used to discharge the precipitation layer.

[0037] The grinding jar assembly is provided with a grinding and crushing component, and the grinding media is stored in the grinding jar assembly. The discharge end of the grinding jar assembly is provided with a filter. The dispersion tank 210, the transfer tank 240 and the dilution chamber 330 are provided with a stirring component for material mixing. That is, the first grinding jar 230, the second grinding jar 250 and the third grinding jar 260 are provided with a grinding and crushing component, the grinding and crushing component can be a crushing blade, and the stirring component can be a stirring blade. The grinding jar assembly can add grinding media of different specifications according to the actual grinding intensity requirements to achieve a better grinding effect. A filter is provided at the discharge end of the grinding jar assembly to prevent the grinding media from flowing out with the material. The dispersion tank 210 needs to have a stirring component to achieve the effect of pre-dispersion mixing. The grinding material in the dilution chamber 330 is a suspension. After dilution, it needs to be continuously stirred to keep the material homogeneous to prevent precipitation.

[0038] Optionally, the solid feeder 220 includes a screw feeding tube, which can accurately control the amount of solid raw materials fed into the feeder.

[0039] like Figure 2 As shown, the viscometer 320 includes a viscosity cup 321 and a viscosity tester 322. The viscosity cup 321 is used to hold the material to be tested. An opening 323 is provided at the bottom of the viscosity cup 321 for discharging the material. The arrow at the opening 323 indicates the discharge direction. The viscosity tester 322 extends below the horizontal liquid level of the material in the viscosity cup 321 to complete the viscosity test. The viscosity tester 322 is driven by a motor to rotate the material, thereby completing the viscosity test of the material. The circular arrow indicates the rotation direction of the viscosity tester 322.

[0040] like Figure 3As shown, the particle size analyzer 350 is provided with a sample inlet 351, a sample outlet 352, and a test table 353. The test table 353 has an inlet. The sample inlet 351 is located at the inlet, and the material enters the test table 353 through the sample inlet 351. The sample outlet 352 is connected to the bottom of the test table 353 through the inlet. The test table 353 is connected to a rotary motor 354, which can drive the test table 353 to rotate. The particle size analyzer 350 is internally provided with a detection head and a light source. The sample outlet 352 is connected to the waste liquid storage unit 500 via a third diaphragm pump 360. In other words, the sample outlet 352 is connected to the waste liquid tank 510 via the third diaphragm pump 360. Particle size analyzer 350 uses differential centrifugal sedimentation. Centrifugal force rapidly precipitates the material being tested, which is then detected and picked up by a detection head. Because particles of different sizes arrive at the detection head at different times, the particle size can be determined by recording the time it takes for a particle to reach the head. After testing, the material is pumped out of the sample outlet pipe 352 via a third diaphragm pump 360. The arrows on the sample inlet pipe 351 and the sample outlet pipe 352 indicate the direction of material flow, and the circular arrow on the rotary motor 354 indicates the direction of rotation.

[0041] like Figure 1As shown, the grinding system also includes a PLC control and display unit 100, which is electrically connected to the grinding unit 200, the detection unit 300, the dilution and flushing unit 400, the waste liquid storage unit 500, and the product filling unit 600. Specifically, operating commands for the grinding unit 200, the detection unit 300, the dilution and flushing unit 400, the waste liquid storage unit 500, and the product filling unit 600 are all issued through the PLC control and display unit 100. Operators can remotely control production progress through the PLC control and display unit 100, saving production time and labor costs. Valves are installed at each outlet of the grinding jar assembly, solid feeder 220, transfer tank 240, solvent tank 410, and dilution chamber 330, and are controlled by the PLC control and display unit 100. Online test results from the viscometer 320 and particle size analyzer 350 can be directly displayed and recorded on the PLC control and display console. The viscometer and particle size analyzer in the detection unit can detect the viscosity, particle size and particle size distribution of the product being ground and feed the data results back to the PLC control display unit, thereby enabling real-time monitoring of the product quality at each stage of the grinding process. When the grinding system enters the cleaning process, the PLC control display unit 100 controls the solvent tank 410 and the waste liquid tank 510 to transport the solvent or the supernatant of the waste liquid as the cleaning agent to the grinding unit 200 and the detection unit 300, wherein the supernatant of the waste liquid is only used as a cleaning agent for preliminary cleaning. By recycling the waste liquid, the generation of waste solvent is reduced, and the cost of waste liquid treatment is reduced. In addition, the cleaning process can be directly controlled by the PLC control display unit 100, and there is no need to open the tank body for manual cleaning, which optimizes the cleaning operation process and saves labor costs.

[0042] The application process includes the following steps:

[0043] Step 1: In the grinding process, liquid materials such as solvents, surfactants, and additives are added to the dispersion tank 210 and dispersed to form a uniform pre-dispersion. The stirring speed during dispersion is generally 600-1000 r / min. The pre-dispersion then enters the first grinding tank 230. The powdered pigment in the solid feeder 220 also enters the first grinding tank 230.

[0044] Step 2: The first grinding tank 230 mixes the pre-dispersion and the powdered pigment through the grinding and pulverizing components, and preliminarily grinds the particles and agglomerates to obtain a preliminary mixed material. The grinding time is 4-10 hours.

[0045] Step 3: The preliminarily mixed material enters the transfer tank 240 for temporary storage and waits to be tested in the detection unit 300. The detection unit 300 detects and analyzes the material in the transfer tank 240 and feeds back the test results to the PLC control and display unit 100. If the viscosity, particle size and particle size distribution values ​​in the test results meet the expected standards for preliminary grinding, the material enters the second grinding tank 250 and the third grinding tank 260 in sequence. If it fails, it returns to the first grinding tank 230, or the grinding time of the subsequent process is adjusted;

[0046] Step 4: The grinding time in the second grinding jar 250 and the third grinding jar 260 is 2-6 hours respectively. The specific grinding time can be adjusted according to the test results of the material in the previous grinding process;

[0047] Step 5: After the material is ground in the third grinding tank 260, it is tested for the final time. If the test result meets the standard, the material is directly discharged into the product filling unit 600. If the test result does not meet the standard, the second diaphragm pump 520 on the return pipe is turned on to transport the material to the first grinding tank 230 for cyclic grinding until the test result meets the standard.

[0048] Step 6: During the grinding process, the detection unit 300 synchronizes with the grinding progress. The PLC controls the display unit 100 to issue detection instructions based on the grinding process, transports the ground material to the first sampler 310, and then completes the sample's viscosity, particle size, particle size distribution and other detection tasks. Specifically, after the first sampler 310 completes sampling, the sample enters the viscometer 320. The viscosity cup 321 can hold a certain amount of material to be tested. The viscosity tester 322 extends below the horizontal liquid surface of the material and rotates to drive the material to complete the viscosity test. The viscosity test data will be displayed and recorded on the PLC display control platform.

[0049] After the viscosity test is completed, the material will flow out through the opening at the bottom of the viscosity cup 321 and enter the dilution chamber 330. The third sampler 420 will take a certain amount of solvent before the material enters and transport the solvent into the dilution chamber 330. The material and solvent are then mixed and diluted to a certain concentration to obtain a dilution liquid. The second sampler 340 will take a certain amount of the dilution liquid and send it to the particle size analyzer 350 for particle size and particle size distribution testing. The remaining dilution liquid will directly enter the waste liquid tank from the dilution chamber.

[0050] Step 7: After the grinding process is completed, the valve between the first grinding tank 230 and the discharge end of the solvent tank 410 in the dilution and flushing unit 400 is opened, allowing the solvent in the solvent tank 410 to enter the first grinding tank 230, and then enter the transfer tank 240, the second grinding tank 250, and the third grinding tank 260 to complete the cleaning process. The cleaned solvent will be recovered into the waste liquid tank 510;

[0051] Step 8: After the grinding or detection process, the dilution and flushing unit 400 uses a solvent to flush the grinding unit 200 and the detection unit 300. The waste generated after flushing enters the waste liquid storage unit 500, and the waste liquid is left to stand in the waste liquid tank 510, where large particles and agglomerates are precipitated due to gravity. The clear liquid layer on the upper layer of the waste liquid tank 510 can be passed through the second diaphragm pump 520 to the detection unit 300 for preliminary cleaning of the detection unit 300, and the second discharge port 512 is used to discharge the sedimentation layer.

[0052] It should be noted that those skilled in the art may make a number of modifications and improvements without departing from the concept of this application, and these modifications and improvements are all within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be based on the appended claims.

Claims

1. A grinding system capable of online monitoring of product quality, characterized by: The invention comprises a grinding unit (200), a detection unit (300), a dilution and flushing unit (400), a waste liquid storage unit (500) and a product filling unit (600), wherein the grinding unit (200) is respectively connected to the detection unit (300), the dilution and flushing unit (400), the waste liquid storage unit (500) and the product filling unit (600), the detection unit (300) is respectively connected to the dilution and flushing unit (400) and the waste liquid storage unit (500), the grinding unit (200) comprises a dispersion tank (210), a solid feeder (220), a grinding tank assembly and a transfer tank (240), the grinding tank assembly The components are respectively connected to the dispersion tank (210), the solid feeder (220) and the transfer tank (240); the detection unit (300) includes a first sampler (310), a viscometer (320), a dilution chamber (330), a second sampler (340), a particle size analyzer (350) and a third diaphragm pump (360) connected in sequence; the dilution chamber (330) is connected to the waste liquid storage unit (500); the particle size analyzer (350) is connected to the waste liquid storage unit (500) through the third diaphragm pump (360); the detection unit (300) is used for quality detection and operates simultaneously with the grinding operation of the grinding unit (200).

2. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: The grinding unit (200) further includes a first diaphragm pump (270), and the grinding jar assembly includes a first grinding jar (230), a second grinding jar (250) and a third grinding jar (260). The first grinding jar (230), the transfer jar (240), the second grinding jar (250) and the third grinding jar (260) are connected in sequence. The third grinding jar (260) is connected to the first grinding jar (230) via a reflux pipe, and the reflux pipe is provided with the first diaphragm pump (270). The dilution and flushing unit (400) is connected to the first grinding jar (230), and the third grinding jar (260) is connected to the waste liquid storage unit (500). The transfer tank (240), the second grinding jar (250) and the third grinding jar (260) are all connected to the detection unit (300).

3. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: The dilution and flushing unit (400) comprises a solvent tank (410) and a third sampler (420), wherein the solvent tank (410) is connected to the dilution chamber (330) via the third sampler (420), and the solvent tank (410) is connected to the grinding unit (200).

4. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: The waste liquid storage unit (500) includes a waste liquid tank (510) and a second diaphragm pump (520), and the waste liquid tank (510) is provided with a first discharge port (511) and a second discharge port (512), wherein the first discharge port (511) is close to the top of the waste liquid tank (510), and the second discharge port (512) is close to the bottom of the waste liquid tank (510), and the first discharge port (511) is connected to the detection unit (300) through the second diaphragm pump (520).

5. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: The grinding jar assembly is provided with a grinding and crushing member, and the grinding medium is stored in the grinding jar assembly. A filter is provided at the discharge end of the grinding jar assembly. The dispersion tank (210), the transfer tank (240) and the dilution chamber (330) are provided with a stirring member for mixing materials.

6. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: The solid feeder (220) includes a screw feeding tube.

7. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: The viscometer (320) comprises a viscosity cup (321) and a viscosity tester (322), wherein the viscosity cup (321) is used to hold a material to be tested, an opening (323) is provided at the bottom of the viscosity cup (321) for discharging the material, and the viscosity tester (322) is inserted below the horizontal liquid level of the material in the viscosity cup (321) to complete viscosity testing.

8. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: The particle size analyzer (350) is provided with a sample inlet (351), a sample outlet (352) and a test bench (353); a material inlet is provided on the test bench (353); the sample inlet (351) is located at the material inlet; the sample outlet (352) is connected to the bottom of the test bench (353) through the material inlet; the test bench (353) is connected to a rotating motor (354); the rotating motor (354) can drive the test bench (353) to rotate; a detection head and a light source are provided inside the particle size analyzer (350); the sample outlet (352) is connected to the waste liquid storage unit (500) through a third diaphragm pump (360).

9. The grinding system capable of online monitoring of product quality according to claim 1, characterized in that: It also includes a PLC control display unit (100), which is electrically connected to the grinding unit (200), the detection unit (300), the dilution and flushing unit (400), the waste liquid storage unit (500), and the product filling unit (600).

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