Prime coat preparation system

Abstract

The utility model discloses a prime coat preparation system, which relates to the technical field of prime coat preparation, and is characterized in that material storage tanks of a prime coat resin feeding device, a prime coat solvent feeding device and a small material feeding device are provided with weighing devices, and materials are conveyed through a conveying pump; in the material conveying process, the weighing device can obtain the weight change of the corresponding storage tank in real time, the material conveying weight can be accurately obtained, and the grinder receives a first solvent, a second solvent, a third solvent and raw materials, mixes the solvent and the raw materials and then outputs the mixture to the first static mixer. And after being mixed with the small material input by the small material feeding device and output by the first static mixer, the base coat product is generated and output to the base coat storage tank for storage, so that the mixing efficiency can be effectively improved, and meanwhile, as the materials do not need to be independently weighed, the material input process before grinding is high in efficiency and high in precision.

Description

Technical Field

[0001] This utility model relates to the field of primer preparation technology, and in particular to a primer preparation system. Background Technology

[0002] Primers are also commonly called primer adhesives, primer treatment agents, or primer-type adhesion promoters. They usually have a certain film thickness (although some primers have no film thickness). They can be applied to the substrate surface by spraying or brushing. They can wet the substrate and help enhance the adhesion between the substrate and the paint or adhesive, thus improving the reliability.

[0003] An undercoat adhesive such as an epoxy resin prepolymer: an NCO (isocyanate)-terminated prepolymer with an epoxy resin structure, which requires the use of zirconium beads (zirconia beads) in its preparation for grinding high-fineness materials.

[0004] In existing methods for preparing primers, three types of solvents for dispersion, carbon black, epoxy resin prepolymer, adhesive resin, smoothing agent, and defoamer need to be weighed separately and added to a grinder. Then, zirconium beads are weighed and added to the grinder. After that, cooling water is turned on for grinding. After the reaction is complete, the primer is manually poured out, and then the zirconium beads and the grinding vessel are cleaned.

[0005] The above process has the following disadvantages:

[0006] 1. Materials need to be weighed and added separately, which is a complicated and time-consuming process;

[0007] 2. The cleaning process is complex. Utility Model Content

[0008] The purpose of this invention is to provide a primer preparation system that greatly shortens the feeding time and improves efficiency.

[0009] To solve the above-mentioned technical problems, this utility model provides a primer preparation system, including a primer resin feeding device, a primer solvent feeding device, a grinder, a small material feeding device, a first static mixer, and a primer storage tank. The primer resin feeding device includes a raw material weigher, a primer resin storage tank, and a raw material delivery pump. The material delivery pump is used to weigh the primer resin stored in the primer resin storage tank by the raw material weigher and then deliver it to the grinder. The primer solvent feeding device includes a first solvent unit, a second solvent unit, and a third solvent unit. The first solvent unit, the second solvent unit, and the third solvent unit weigh their respective solvents by their respective solvent weighers and then deliver them to the grinder by their respective solvent delivery pumps. After mixing with the primer resin, the mixture is output to the first static mixer. After mixing with the small material input by the small material feeding device, a primer product is generated and output to the primer storage tank for storage.

[0010] The device also includes a second static mixer disposed between the primer solvent feeding device and the grinder. The first solvent, the second solvent, and the third solvent output by the primer solvent feeding device, corresponding to the first solvent unit, the second solvent unit, and the third solvent unit, are fed to the second static mixer for static mixing to form a primary mixture, and then the primary mixture is output to the grinder.

[0011] It also includes a filter disposed between the grinder and the second static mixer, used to filter the mixture output from the grinder before outputting it to the second static mixer.

[0012] The first static mixer and the second static mixer are SV type static mixers, SK type static mixers, SX type static mixers, SH type static mixers, or SL type static mixers.

[0013] It also includes a cleaning device connected to the second static mixer. The cleaning device includes a cleaning fluid storage tank and a cleaning fluid delivery pump, which delivers the cleaning fluid through the cleaning fluid storage tank.

[0014] The device also includes a first nitrogen storage device connected to the grinder and a second nitrogen storage device connected to the primer tank. The first nitrogen storage device is used to perform gas replacement before grinding by the grinder and to output the primary mixture to the first static mixer after grinding. The second nitrogen storage device is used to perform gas replacement on the primer tank.

[0015] It also includes a display connected to the primer resin feeding device, the primer solvent feeding device, the grinder, the small material feeding device, the first static mixer, and the primer storage tank, for displaying the operating status of the primer resin feeding device, the primer solvent feeding device, the grinder, the small material feeding device, the first static mixer, and the primer storage tank.

[0016] It also includes a circulating water device connected to the grinder, which is used to input circulating water into the grinder through the circulating water inlet of the grinder to cool the inside of the grinder, and output the circulating water from the circulating water outlet of the grinder.

[0017] This also includes a transparent feeding window located on the top cover of the grinder.

[0018] This also includes a heat-insulating jacket installed on the outer wall of the grinder.

[0019] The primer preparation system provided in this embodiment of the invention has the following advantages compared with the prior art:

[0020] The primer preparation system provided in this embodiment of the utility model is equipped with a weighing device in the material storage tanks of the primer resin feeding device, primer solvent feeding device, and small material feeding device. The material is transported by a conveying pump. During the material transport process, the weighing device can obtain the weight change of the corresponding storage tank in real time, and can accurately obtain the weight of the material being transported. The grinder receives the first solvent, the second solvent, the third solvent and the raw material, mixes them and outputs them to the first static mixer. After mixing with the small material input from the small material feeding device and output from the first static mixer, the primer product is generated and output to the primer storage tank for storage. This can effectively improve the mixing efficiency. At the same time, since there is no need to weigh the material separately, the material input process before grinding is highly efficient and accurate. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the physical connection structure of an embodiment of the primer preparation system provided by this utility model;

[0023] Figure 2 A schematic diagram of an embodiment of the primer preparation system provided by this utility model;

[0024] Figure 3 A schematic diagram of the primer solvent feeding device according to an embodiment of the primer preparation system provided by this utility model;

[0025] Figure 4 A schematic diagram of the first static mixer structure of an embodiment of the primer preparation system provided by this utility model;

[0026] Figure 5 A schematic diagram of the structure of the second static mixer in one embodiment of the primer preparation system provided by this utility model;

[0027] Figure 6 A schematic diagram of the grinder structure of one embodiment of the primer preparation system provided by this utility model;

[0028] Among them, 10-first solvent unit, 11-first solvent storage tank, 12-first transfer pump, 20-second solvent unit, 21-second solvent storage tank, 22-second transfer pump, 30-third solvent unit, 31-third solvent storage tank, 32-third transfer pump, 40-primer resin feeding device, 41-primer resin storage tank, 42-raw material transfer pump, 50-grinder, 51-first nitrogen storage device, 54-circulating water inlet, 55-circulating water outlet, 52-top cover, 53-transparent feeding window. 60-First static mixer, 70-Small material feeding device, 71-Small material storage tank, 72-Small material transfer pump, 80-Primer storage tank, 81-Second nitrogen storage device, 90-Second static mixer, 100-Cleaning device, 101-Cleaning fluid storage tank, 102-Cleaning fluid transfer pump, 56-Motor, 52-Top cover, 82-Nitrogen inlet valve, 57-Insulation jacket, 58-Agitator, 59-Discharge valve with filter screen, 501-Bottom support, 502-Zirconium beads, 104-Washing kettle solvent discharge valve, 103-Washing kettle solvent inlet valve, 43-Epoxy resin inlet valve, 13-Solvent inlet valve, 503-Pressure relief valve. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please refer to Figures 1-6 , Figure 1 Figure 2 is a schematic diagram of an embodiment of the primer preparation system provided by this utility model; Figure 3 A schematic diagram of the structure of the primer solvent feeding device in one embodiment of the primer preparation system provided by this utility model; Figure 4 A schematic diagram of the first static mixer structure of an embodiment of the primer preparation system provided by this utility model; Figure 5 A schematic diagram of the structure of the second static mixer in one embodiment of the primer preparation system provided by this utility model; Figure 6 A schematic diagram of the grinder structure of one embodiment of the primer preparation system provided by this utility model.

[0031] In one specific embodiment, the primer preparation system includes a primer resin feeding device 40, a primer solvent feeding device, a grinder 50, a small material feeding device 70, a first static mixer 60, and a primer storage tank 80. The primer resin feeding device includes a raw material weigher, a primer resin storage tank, and a raw material delivery pump. The material delivery pump is used to weigh the primer resin stored in the primer resin storage tank by the raw material weigher and then deliver it to the grinder. The primer solvent feeding device includes a first solvent unit 10, a second solvent unit 20, and a third solvent unit 30. The first solvent unit 10, the second solvent unit 20, and the third solvent unit 30 are weighed by their respective solvent weighers and then delivered to the grinder 50 by their respective solvent delivery pumps to mix with the primer resin. The mixture is then output to the first static mixer 60 and mixed with the small material input by the small material feeding device 70 to generate a primer product, which is then output to the primer storage tank 80 for storage.

[0032] By setting weighing devices in the material storage tanks of the primer resin feeding device 40, primer solvent feeding device, and small material feeding device 70, and using a conveying pump for material conveying, the weighing devices can obtain the weight changes of the corresponding storage tanks in real time during the material conveying process, and can accurately obtain the weight of the material conveyed. The grinder 50 receives the first solvent, the second solvent, the third solvent and the raw materials, mixes them and outputs them to the first static mixer 60. After mixing with the small material input from the small material feeding device 70 and output from the first static mixer 60, the primer product is generated and output to the primer storage tank 80 for storage, which can effectively improve the mixing efficiency. At the same time, since there is no need to weigh the materials separately, the material input process before grinding is highly efficient and accurate.

[0033] In one embodiment, the primer solvent feeding device includes a first solvent unit 10, a second solvent unit 20, and a third solvent unit 30. The first solvent unit 10 includes a first solvent storage tank 11, a first weighing device for real-time weighing of the first solvent storage tank 11, and a first transfer pump 12. The second solvent unit 20 includes a second solvent storage tank 21, a second weighing device for real-time weighing of the second solvent storage tank 21, and a second transfer pump 22. The third solvent unit 30 includes a third solvent storage tank 31, a third weighing device for real-time weighing of the third solvent storage tank 31, and a third transfer pump 32. The first transfer pump 12 is used to transfer the first solvent stored in the first solvent storage tank 11 to the grinder 50. The second transfer pump 22 is used to transfer the second solvent stored in the second solvent storage tank 21 to the grinder 50. The third transfer pump 32 is used to transfer the third solvent stored in the third solvent storage tank 31 to the grinder 50.

[0034] In the primer resin feeding device 40 of this application, the raw material conveying pump 42 can be a conventional conveying pump or a high viscosity pump, thereby improving the material conveying efficiency.

[0035] To further improve mixing efficiency and effect, and to avoid deactivation caused by direct entry into the grinder 50, in one embodiment, the primer preparation system further includes a second static mixer 90 disposed between the primer solvent feeding device and the grinder 50. The first solvent, second solvent, and third solvent output by the primer solvent feeding device, corresponding to the first solvent unit, the second solvent unit, and the third solvent unit, are fed to the second static mixer 90 for static mixing to form a primary mixture, and then the primary mixture is output to the grinder 50.

[0036] By setting up a second static mixer 90, the three solvents entering the grinder 50 are pre-mixed, so that the raw materials and solvents entering the grinder 50 are mixed evenly during the grinding process. This improves the temperature uniformity at various points during grinding and also increases the grinding efficiency.

[0037] In this application, after the grinder 50 completes the grinding and mixing, if it is directly mixed with small materials, it may also include a filter disposed between the grinder 50 and the second static mixer 90, for filtering the mixture output from the grinder 50 and then outputting it to the second static mixer 90.

[0038] By using a filter, it can be ensured that the particle size is within a predetermined range during the mixing process of the mixture output from the grinder 50 with the small materials, thereby improving the mixing effect.

[0039] This application does not limit the type of filter.

[0040] It should be noted that, due to the presence of the filter in this application, some material may remain in the filter. In order to improve the utilization efficiency, the part filtered by the filter can also be returned to the grinder 50 for secondary grinding, thereby improving the utilization efficiency.

[0041] In this application, a static mixer is used to mix the corresponding materials. There is no limitation on its structural type. The first static mixer 60 and the second static mixer 90 are SV type static mixers, SK type static mixers, SX type static mixers, SH type static mixers, or SL type static mixers, or other types of static mixers.

[0042] Figure 4 The first static mixer 60 shown and Figure 5The second static mixer 90 and the first static mixer 60 are three filter plates for mixing raw materials. The upper and lower filter plates have mixing holes on their surfaces facing the middle filter plate. The raw materials enter the middle filter plate and are then output after mixing. The upper filter plate of the second static mixer 90 has through holes on its surface to output to the lower filter plate for mixing and forming a mixture output.

[0043] Because the cleaning process in existing devices is complex, in order to improve cleaning efficiency, in one embodiment, the primer preparation system further includes a cleaning device 100 connected to the second static mixer 90. The cleaning device 100 includes a cleaning liquid storage tank 101 and a cleaning liquid delivery pump 102, which delivers the cleaning liquid through the cleaning liquid storage tank 101.

[0044] By setting up a cleaning device 100 connected to a second static mixer 90, the cleaning fluid can be delivered by a cleaning fluid delivery pump 102 to achieve automatic cleaning and improve cleaning efficiency.

[0045] Since the primer preparation process in this application may involve oxidation and deactivation by air, in order to improve operational reliability and ensure the activity of the material, in one embodiment, the primer preparation system further includes a first nitrogen storage device 51 connected to the grinder 50 and a second nitrogen storage device 81 connected to the primer storage tank 80. The first nitrogen storage device 51 is used to perform gas replacement before grinding by the grinder 50 and to output the primary mixture to the first static mixer 60 after grinding. The second nitrogen storage device 81 is used to perform gas replacement on the primer storage tank 80.

[0046] By connecting the grinder 50 to the primer storage tank 80 with a nitrogen storage device, nitrogen protection is provided during operation to prevent direct contact with air from causing raw material deactivation. At the same time, in the subsequent material output, such as when the material generated by the grinder 50 is sent to the first static mixer 60 and to the primer storage tank 80, it is pushed by a slight positive pressure to improve the material movement efficiency.

[0047] This application includes, but is not limited to, using a nitrogen storage device for gas replacement. Other protective gases may also be used. The type of nitrogen storage device is not limited; it may be a steel cylinder or other storage device. The output pressure of the nitrogen may be fixed or adjusted as needed.

[0048] To further improve management efficiency, in one embodiment, the primer preparation system further includes a display connected to the primer resin feeding device 40, the primer solvent feeding device, the grinder 50, the small material feeding device 70, the first static mixer 60, and the primer storage tank 80, for displaying the operating status of the primer resin feeding device 40, the primer solvent feeding device, the grinder 50, the small material feeding device 70, the first static mixer 60, and the primer storage tank 80.

[0049] The display can show the status of the corresponding device in real time. For example, it can show the operating status of the grinder 50, such as the rotation speed, feeding status, and discharging status. It can also show the material input status, mixing time, and discharging status of the static mixer, as well as the weight change of the storage tank during raw material transportation, thereby inferring the output of the material.

[0050] This application does not impose any limitations on the structure or display method of the display.

[0051] During the operation of the grinder 50 in this application, the mixing process of different raw materials may involve heat release or heat absorption, causing the overall temperature to rise or fall, which increases the difficulty of grinding by the grinder 50 and may reduce the activity of the materials.

[0052] To improve the reliability of materials during grinding, in one embodiment, the primer preparation system further includes a circulating water device connected to the grinder 50, which is used to input circulating water into the grinder 50 through the circulating water inlet 54 to cool the interior of the grinder 50, and output the circulating water from the circulating water outlet 55 of the grinder 50.

[0053] By setting up a circulating water device and injecting circulating water into the grinder 50, the working temperature of the grinder 50 can be kept within a predetermined temperature range during operation. This ensures that the grinding efficiency will not decrease due to the temperature rise or fall of the material being ground by the grinder 50, thus improving the reliability of the grinding process.

[0054] To further enhance monitoring of the grinding process and improve management efficiency, in one embodiment, the primer preparation system further includes a transparent feeding window 53 disposed on the top cover 52 of the grinder 50.

[0055] By setting a transparent feeding window 53 on the top cover 52, the staff can observe the inside of the grinder 50 in real time with the naked eye or a camera to obtain the grinding status of the material and the operating status of the grinder 50.

[0056] This application does not limit the size, shape, installation method, structure, etc. of the transparent feeding window 53. The transparent feeding window 53 can be made of ordinary glass or photochromic glass, that is, the window can be made visible as needed.

[0057] To reduce heat exchange with the outside during the grinding process and improve the internal reliability of the grinder 50, in one embodiment, the primer preparation system further includes a heat-insulating jacket disposed on the outer wall of the grinder 50.

[0058] By setting up an insulation jacket to isolate heat from the inside and outside of the grinder 50, precise temperature control of its interior can be achieved, thereby improving grinding efficiency and grinding quality.

[0059] This application does not impose any restrictions on the material or installation method of the insulation jacket.

[0060] In one embodiment, the primer preparation system includes a primer feeding device, a solvent feeding device, a grinder, a cleaning device 100, a filter, a mixer, a feeder, and a discharge device. The primer feeding device, the solvent feeding device, the cleaning device 100, and the feeder of the grinder are connected. The discharge port of the grinder is connected to the filter. The feed port of the mixer is connected to the feeder and the filter, and the discharge port is connected to the discharge device.

[0061] In the solvent feeding device, three solvents are stored in storage tanks, weighed by a weighing device, and then pumped to the second static mixer 90 for mixing. After mixing, the solvents are output to the material inlet of the grinder 50, where they are ground and then output to the first static mixer 60. There, they are mixed with the small material input from the small material device and then output to the finished product storage tank of the discharge device. The small material device stores materials in a small material storage tank, weighs them using a small material weighing device, and conveys them using a small material metering pump.

[0062] Nitrogen cylinders are connected to the grinder 50 and the finished product storage tank for nitrogen protection.

[0063] The grinder 50 is equipped with a solvent feed valve, an epoxy resin feed valve, a washing vessel solvent feed valve, a washing vessel solvent discharge valve, a top cover 52, a transparent feeding window 53 on the top cover 52, a motor, a stirring paddle, a nitrogen feed valve, a circulating water inlet 54, a circulating water outlet, and a pressure relief valve. The bottom of the grinder 50 is equipped with a base support and a discharge valve with a filter screen. The outer wall is equipped with a heat insulation jacket, and the inside is equipped with zirconium beads.

[0064] In the static mixer, the first static mixer 60, as shown in the figure, introduces the first material from the top, and after exiting through the through hole in the material plate at the top, it is mixed with the second material introduced from the material plate at the bottom and then output.

[0065] Similarly, the material in the second static mixer 90 is discharged after being mixed with the material in the middle material plate through the through-hole outlet of the upper and lower material plates.

[0066] The usage method is as follows:

[0067] To test the airtightness of the device, pressurize the reactor and test with soapy water. Once the airtightness is confirmed, release the pressure using the pressure relief valve.

[0068] Open the three solvent injection valves and use the metering pump to inject the three solvents into the grinder 50 respectively;

[0069] Open the epoxy resin injection valve and inject the epoxy resin prepolymer into the grinder 50.

[0070] Open the feed port at the top of the grinder 50 and add the carbon black into the grinder 50;

[0071] Turn on the circulating water system to cool the grinder to 50°C, turn on the motor switch, set the appropriate speed, and start grinding;

[0072] Once the fineness meets the requirements, turn off the motor and circulating water, open the discharge valve, and introduce nitrogen into the reactor to prepare for discharge. Adjust the discharge rate using the pressure reducing valve.

[0073] Open the small material valve and use a metering pump to pump the small material into the first static mixer 60 to mix with the material in the reactor, and then enter the bottom coating storage tank 80;

[0074] After the material in the grinder 50 is emptied, close the discharge valve, open the washing solvent valve, pump the washing solvent into the reactor, turn on the agitator, and clean the reactor.

[0075] After cleaning, the solvent from the washing vessel is returned to the storage tank under nitrogen pressure.

[0076] This application designs an entire reaction system that can complete the entire process of raw material storage, raw material transportation, reaction, and product transportation, shortening the feeding time and improving efficiency; the addition of a static mixer to the system can effectively improve the mixing efficiency.

[0077] In addition to the above-mentioned configuration, the grinder 50 is equipped with a motor 56, which drives the stirring paddle 58 to rotate and achieve material mixing. A top cover 52 and a nitrogen inlet valve 82 are installed at the top, connected to a first nitrogen storage device 51 for nitrogen input. An insulation jacket 57 is installed on the outer wall for insulation. A discharge valve 59 with a filter screen is installed at the bottom for material output. A bottom support 501 is installed at the bottom of the device for support. Zirconium beads 502 are installed inside; driving the zirconium beads 502 to move and collide with the material accelerates mixing. A washing vessel solvent discharge valve 104 and a washing vessel solvent inlet valve 103 are installed on the side for input and output of washing vessel solvent. An epoxy resin inlet valve 43 and a solvent inlet valve 13 are also installed on the side for input of epoxy resin and solvent, respectively. A pressure relief valve 503 is installed on the top cover for pressure relief after overpressure, improving the operational reliability of the equipment.

[0078] In summary, the primer preparation system provided by this utility model embodiment, by setting a weighing device in the material storage tanks of the primer resin feeding device, primer solvent feeding device, and small material feeding device, and by using a conveying pump for material conveying, allows the weighing device to obtain the weight change of the corresponding storage tank in real time during the material conveying process, thus accurately obtaining the weight of the material conveyed. The grinder receives the first solvent, the second solvent, the third solvent, and the raw material, mixes them, and outputs them to the first static mixer. After mixing with the small material input from the small material feeding device and output from the first static mixer, the primer product is generated and output to the primer storage tank for storage. This can effectively improve the mixing efficiency. At the same time, since there is no need to weigh the material separately, the material input process before grinding is highly efficient and accurate.

[0079] The primer preparation system provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A primer preparation system, characterized in that, The system includes a primer resin feeding device, a primer solvent feeding device, a grinder, a small component feeding device, a first static mixer, and a primer storage tank. The primer resin feeding device includes a raw material weigher, a primer resin storage tank, and a raw material delivery pump. The delivery pump is used to weigh the primer resin stored in the primer resin storage tank using the raw material weigher and then deliver it to the grinder. The primer solvent feeding device includes a first solvent unit, a second solvent unit, and a third solvent unit. The first solvent unit, the second solvent unit, and the third solvent unit weigh their respective solvents using their respective solvent weighers and then deliver them to the grinder via their respective solvent delivery pumps. After mixing with the primer resin, the mixture is output to the first static mixer. After mixing with the small component input from the small component feeding device, a primer product is generated and output to the primer storage tank for storage.

2. The primer preparation system as described in claim 1, characterized in that, It also includes a second static mixer disposed between the primer solvent feeding device and the grinder. The first solvent, the second solvent, and the third solvent output by the primer solvent feeding device, corresponding to the first solvent unit, the second solvent unit, and the third solvent unit, are fed to the second static mixer for static mixing to form a primary mixture, and then the primary mixture is output to the grinder.

3. The primer preparation system as described in claim 2, characterized in that, It also includes a filter disposed between the grinder and the second static mixer, for filtering the mixture output from the grinder before outputting it to the second static mixer.

4. The primer preparation system as described in claim 3, characterized in that, The first static mixer and the second static mixer are SV type static mixers, SK type static mixers, SX type static mixers, SH type static mixers, or SL type static mixers.

5. The primer preparation system as described in claim 4, characterized in that, It also includes a cleaning device connected to the second static mixer, the cleaning device including a cleaning fluid storage tank and a cleaning fluid delivery pump, the cleaning fluid delivery pump passing through the cleaning fluid storage tank.

6. The primer preparation system as described in claim 5, characterized in that, It also includes a first nitrogen storage device connected to the grinder and a second nitrogen storage device connected to the primer tank. The first nitrogen storage device is used to perform gas purging before grinding by the grinder and to output the primary mixture to the first static mixer after grinding. The second nitrogen storage device is used to perform gas purging of the primer tank.

7. The primer preparation system as described in claim 1, characterized in that, It also includes a display connected to the primer resin feeding device, the primer solvent feeding device, the grinder, the small material feeding device, the first static mixer, and the primer storage tank, for displaying the operating status of the primer resin feeding device, the primer solvent feeding device, the grinder, the small material feeding device, the first static mixer, and the primer storage tank.

8. The primer preparation system as described in claim 1, characterized in that, It also includes a circulating water device connected to the grinder, which is used to input circulating water into the grinder through the circulating water inlet of the grinder to cool the inside of the grinder, and output the circulating water from the circulating water outlet of the grinder.

9. The primer preparation system as described in claim 1, characterized in that, It also includes a transparent feeding window located on the top cover of the grinder.

10. The primer preparation system as described in claim 1, characterized in that, It also includes a heat-insulating jacket disposed on the outer wall of the grinder.

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