Preparation method and application of diamond grinding paste

Abstract

The invention discloses a preparation method and application of diamond grinding paste, and belongs to the technical field of diamond grinding paste. The preparation method of the diamond grinding paste comprises the following steps: a, removing impurities on the surface of diamond micro powder; b, a stabilizer, a dispersing agent and a lubricating agent are premixed in proportion and then heated, and a mixed solution is obtained; c, adding the mixed solution in the step b and diamond micro-powder into stirring and homogenizing equipment, and stirring and dispersing; d, adding a thickening agent into the stirring and homogenizing equipment, and stirring and dispersing to obtain slurry; e, homogenizing the slurry in the step d in stirring and homogenizing equipment to obtain grinding paste, and leading out the grinding paste from the stirring and homogenizing equipment; f, defoaming the grinding paste in the step e; according to the invention, two processes are integrated into one device, so that the dispersing, mixing and homogenizing treatment of materials are more coherent, the production efficiency is improved, the production cost is reduced to a certain extent, and the production benefit is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of diamond grinding paste, and particularly to a preparation method and application of diamond grinding paste. Background Art

[0002] Diamond is one of the substances with the highest hardness among the existing known materials, and it is mostly used in cutting and grinding equipment. The natural diamonds mined are generally large in volume and high in use cost, so they are very limited in industrial production. However, with the emergence of artificial diamond production technology, it is now possible to manufacture artificial diamond powders with fine particle size and low cost, which are mostly used to make grinding materials. Diamond grinding paste is a kind of grinding material that is convenient to use and has a wide range of applications.

[0003] When preparing diamond grinding paste, it is necessary to disperse and mix the raw materials, and then perform homogenization treatment, which is also the key process for preparing diamond grinding paste. These two processes have a great impact on the output quality and production efficiency of the product. However, when preparing traditional diamond grinding paste, the dispersion mixing and homogenization treatment are respectively processed by a stirring device and a three-roll grinding device. The product produced by the stirring device also needs to be specially transferred, which will undoubtedly affect the production coherence of these two processes, thereby affecting the production efficiency. Moreover, the intermediate transfer work also requires a certain amount of manpower and material resources, resulting in an increase in production costs. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the two main processes of dispersion mixing and homogenization treatment in the prior art are not coherent enough, affecting production efficiency and increasing production costs, and to propose a preparation method and application of diamond grinding paste.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme: A preparation method of diamond grinding paste, comprising the following steps: a. Remove impurities on the surface of diamond micropowder; b. Pre-mix stabilizer, dispersant and lubricant in proportion, and then heat to liquid state to obtain a mixed liquid; c. Add the mixed liquid in step b and diamond micropowder into a stirring and homogenizing device, and perform sufficient stirring and dispersion; d. Add a thickening agent into the stirring and homogenizing device and perform sufficient stirring and dispersion to obtain a slurry; e. Homogenize the slurry in step d in the stirring and homogenizing device to obtain grinding paste and export it from the stirring and homogenizing device; f. Perform defoaming treatment on the grinding paste in step e; g. Perform quality inspection on the defoamed grinding paste.

[0006] In some embodiments, the stabilizer is nano-cellulose or colloidal silica.

[0007] In some embodiments, the dispersant is a modified polymer or a nano-dispersant.

[0008] In some embodiments, the stirring and homogenizing equipment sequentially includes a stirring tank, a storage tank, and a three-roll grinding device from top to bottom. An efficient stirring mechanism is provided in the stirring tank. A connecting pipe is vertically fixed between the stirring tank, the storage tank, and the three-roll grinding device. Opening and closing mechanisms are provided between the stirring tank and the storage tank and between the storage tank and the three-roll grinding device on the connecting pipe. A circulation system is provided between the storage tank and the three-roll grinding device.

[0009] In some embodiments, the efficient stirring mechanism includes a planetary stirring assembly and a lifting auger both provided in the stirring tank. The lifting auger is rotatably connected in the connecting pipe and connected to the planetary stirring assembly. A lifting port is opened on the connecting pipe outside the lifting auger.

[0010] In some embodiments, feeding ports are respectively opened on the connecting pipe at the positions of the two opening and closing mechanisms, and a discharge port is further opened inside the storage tank on the connecting pipe. The discharge port is located between the two feeding ports.

[0011] In some embodiments, the opening and closing mechanism includes a sealing sleeve and a second linear driving device. The sealing sleeve is sleeved and slid on the outside of the connecting pipe. The second linear driving device is fixed on the outside of the connecting pipe and fixedly connected to the connecting pipe through a driving part.

[0012] In some embodiments, feeding augers are respectively rotatably connected at the positions of the two feeding ports inside the connecting pipe. The feeding augers are connected to the efficient stirring mechanism.

[0013] In some embodiments, a discharging mechanism is provided between the three-roll grinding device and the circulation system for discharging the ground material into or outside the circulation system.

[0014] The diamond grinding paste prepared by the above method is applied to the cleaning and treatment of the surfaces of automobiles, metal processing, and household products.

[0015] Compared with the prior art, the present invention provides a preparation method and application of a diamond grinding paste, having the following beneficial effects.

[0016] 1. In the present invention, through the provision of a stirring and homogenizing device, the dispersion mixing and homogenization treatment of materials are carried out simultaneously on this device. Therefore, the two processes are integrated into one device, making the dispersion mixing and homogenization treatment of materials more coherent, thereby improving production efficiency. Moreover, there is no longer a need for excessive material transfer work. Therefore, the human and material resources consumed in these two processings can be reduced, and thus the production cost can be reduced to a certain extent and the production benefit can be improved.

[0017] 2. In the present invention, through the provision of an efficient stirring mechanism, while the planetary stirring assembly efficiently stirs the materials, the lower-layer materials being stirred can enter the connecting pipe through the lifting port, and are lifted by the rotating lifting auger and discharged from the upper end of the connecting pipe to the upper layer in the stirring tank. Thus, while achieving efficient stirring, the transfer of upper and lower layer materials can be promoted, and thereby the stirring effect can be further improved, so as to improve the stirring efficiency, shorten the stirring time to a certain extent, and accelerate the preparation speed.

[0018] 3. In the present invention, through the coordinated provision of a storage tank and an opening and closing mechanism, the purpose of discharging the materials in the stirring tank and temporarily storing them in the storage tank can be achieved. Then, raw materials are continuously added to the stirring tank and another batch of stirring operations are carried out. At the same time, the materials in the storage tank start to be discharged downward into a three-roll grinding device for grinding treatment. Thus, while stirring and dispersing the above materials, the materials after stirring are also ground and homogenized, enabling the two processes to be carried out simultaneously, thereby improving the preparation efficiency to a certain extent.

[0019] 4. In the present invention, through the provision of a three-roll grinding device and a circulation system, the circulating grinding of materials can be achieved to ensure the preparation quality. Moreover, through the provision of a discharging mechanism, the automatic discharging of the materials in the three-roll grinding device to the corresponding place can be realized, thereby improving the automation degree of the grinding process and reducing manual participation. While further improving the processing efficiency, the labor cost can also be reduced to a certain extent.

[0020] Other advantages, objectives and features of the present invention will be described to some extent in the subsequent specification; and to some extent, based on the study of the following text, they will be obvious to those skilled in the art; or, they can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view three-dimensional structural schematic diagram of the stirring and homogenizing device.

[0022] Figure 2 It is a front view sectional structural schematic diagram of the stirring and homogenizing device.

[0023] Figure 3 It is a partial front view sectional structural schematic diagram of the stirring and homogenizing device.

[0024] Figure 4 It is a front view sectional structure schematic diagram of the mixing tank.

[0025] Figure 5 It is Figure 2 The enlarged structure schematic diagram at position A in

[0026] Figure 6 It is Figure 3 The enlarged structure schematic diagram at position B in

[0027] Figure 7 It is a three-dimensional structure schematic diagram at the opening and closing mechanism.

[0028] Figure 8 It is a front view sectional structure schematic diagram at the three-roll grinding device.

[0029] Figure 9 It is a side view sectional structure schematic diagram of the material leveling mechanism.

[0030] In the figure: 100, mixing and homogenizing equipment; 10, mixing tank; 11, mixing motor; 12, high-efficiency mixing mechanism; 1201, planetary mixing assembly; 1202, lifting auger; 1203, lifting port; 20, storage tank; 21, material leveling mechanism; 2101, material leveling box; 2102, material cavity; 2103, material leveling channel; 30, three-roll grinding device; 31, discharging mechanism; 3101, upper scraper; 3102, lower scraper; 3103, first linear driving device; 40, circulation system; 41, receiving hopper; 42, hose pump; 43, return pipe; 44, extraction pipe; 50, connecting pipe; 51, opening and closing mechanism; 5101, sealing sleeve; 5102, second linear driving device; 5103, sealing gasket; 5104, first sealing ring; 5105, second sealing ring; 52, feeding auger; 53, feeding port; 54, discharging port; 55, partition board; 56, protective cover. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0032] A preparation method of diamond grinding paste includes the following steps: a. Remove impurities on the surface of diamond micropowder; b. Pre-mix the stabilizer, dispersant, and lubricant in proportion, and then heat to a liquid state (150 - 200 °C) to obtain a mixed liquid; c. Add the mixture in step b and diamond micropowder into the stirring and homogenizing device 100, and conduct sufficient stirring and dispersion for 10 - 15 minutes; d. Add the thickener into the stirring and homogenizing device 100 and conduct sufficient stirring and dispersion for 5 - 10 minutes to obtain a slurry; e. Conduct grinding and homogenization treatment on the slurry in step d in the stirring and homogenizing device 100, and grind it repeatedly for 3 to 5 times, then obtain the grinding paste and export it from the stirring and homogenizing device 100; f. Conduct degassing treatment on the grinding paste in step e. Through a vacuum degassing machine, stir it for 10 - 20 minutes in a vacuum environment (-0.08 to -0.1 MPa) to eliminate air bubbles; g. Conduct quality inspection on the degassed grinding paste.

[0033] The ratio of each raw material is as follows: diamond micropowder (0.5μm) 8 - 15%, stabilizer 70 - 80%, dispersant 4 - 8%, lubricant 6 - 10%, and thickener 1 - 3%.

[0034] Preferably, diamond micropowder (0.5μm) 10%, stabilizer 75%, dispersant 5%, lubricant 8%, and thickener 2%.

[0035] The stabilizer adopts nano - cellulose or colloidal silica to improve the suspension stability of the grinding paste and effectively prevent the diamond grinding paste from stratifying, precipitating, or particle sedimentation during storage or use.

[0036] The dispersant adopts a modified polymer or a nano - dispersant. Among them, the modified polymer can be selected from polyacrylic acid - styrene block copolymer or phosphate - modified polyester, and the nano - dispersant can adopt nano - SiO2 or graphene to ensure the uniform dispersion of diamond micropowder and effectively prevent the problem of uneven cleaning effect caused by the agglomeration of diamond micropowder in the diamond grinding paste.

[0037] The lubricant can adopt materials such as glycerol to play a moisturizing role and prevent the diamond grinding paste from drying. Moreover, an antioxidant can also be added in step d to extend the shelf life of the diamond grinding paste.

[0038] Refer to Figure 1 , the stirring and homogenizing device 100 successively includes a stirring tank 10, a storage tank 20, and a three - roll grinding device 30 from top to bottom. The stirring tank 10 is provided with an input port for feeding materials. Moreover, in order to control the temperature of the materials in the stirring tank 10 during stirring and dispersion, a heating jacket and a cooling system can be installed outside the stirring tank 10 (both the heating jacket and the cooling system are existing technologies and will not be elaborated here).

[0039] The mixing box 10 is provided with a high-efficiency mixing mechanism 12, and a connecting pipe 50 is vertically fixed between the mixing box 10, the storage box 20 and the three-roll grinding device 30. The upper and lower ends of the connecting pipe 50 are both open. The upper end of the connecting pipe 50 is located in the mixing box 10, and the lower end extends downward to the feeding position of the three-roll grinding device 30. Moreover, the interior of the mixing box 10 is connected with the interior of the storage box 20 through the connecting pipe 50, and the interior of the storage box 20 is connected with the feeding position of the three-roll grinding device 30 through the connecting pipe 50.

[0040] In addition, two opening and closing mechanisms 51 are arranged on the connecting pipe 50 from top to bottom. The opening and closing mechanism 51 located at the upper part is used to adjust the opening and closing between the mixing box 10 and the storage box 20, and the opening and closing mechanism 51 located at the lower part is used to adjust the opening and closing between the storage box 20 and the three-roll grinding device 30. In addition, a protective cover 56 is fixed outside the opening and closing mechanism 51 located at the upper part to protect the opening and closing mechanism 51 from being contaminated by materials.

[0041] A circulation system 40 is provided between the storage box 20 and the three-roller grinding device 30 for conveying the material ground by the three-roller grinding device 30 back to the storage box 20 for circulation grinding.

[0042] Reference Figures 2 - 4 The high-efficiency stirring mechanism 12 includes a planetary stirring assembly 1201 and a lifting auger 1202, both of which are arranged in the stirring box 10. The planetary stirring assembly 1201 is rotatably connected to the inside of the stirring box 10. A stirring motor 11 is installed on the upper part of the stirring box 10. The output end of the stirring motor 11 is transmission-connected to the planetary stirring assembly 1201.

[0043] The lifting auger 1202 is rotatably connected in the connecting pipe 50 and its upper end is fixedly connected to the planetary stirring assembly 1201. A lifting port 1203 is opened on the connecting pipe 50 at the outside of the lifting auger 1202. The lower layer material being stirred in the mixing box 10 can enter the connecting pipe 50 through the lifting port 1203, and after being lifted by the rotating lifting auger 1202, it is discharged to the upper layer in the mixing box 10 through the upper end of the connecting pipe 50, thereby improving the stirring effect.

[0044] Reference Figure 6 In order to prevent the material from falling into the storage box 20 during the lifting process, a partition plate 55 is fixedly connected to the lower end of the lifting auger 1202 inside the connecting pipe 50.

[0045] Reference Figures 2 - 7, discharge openings 53 are respectively provided at two opening and closing mechanisms 51 on the connecting pipe 50. The upper discharge opening 53 is located inside the mixing tank 10 and below the lifting opening 1203, while the lower discharge opening 53 is located inside the storage tank 20. And an outlet 54 is also provided on the connecting pipe 50 inside the storage tank 20. The outlet 54 is located between the two discharge openings 53. Therefore, when the upper opening and closing mechanism 51 is opened, the materials in the mixing tank 10 can enter the connecting pipe 50 through the upper discharge opening 53 and fall into the storage tank 20 through the outlet 54. When the lower opening and closing mechanism 51 is opened, the materials in the storage tank 20 can enter the connecting pipe 50 through the lower discharge opening 53 and finally fall to the feeding place of the three-roll grinding device 30 through the lower end of the connecting pipe 50.

[0046] Referring to Figure 6 , in order to prevent the materials in the mixing tank 10 from directly sliding down to the three-roll grinding device 30 through the connecting pipe 50, a partition 55 is also fixed inside the connecting pipe 50 below the outlet 54.

[0047] The opening and closing mechanism 51 includes a sealing sleeve 5101 and a second linear driving device 5102. The second linear driving device 5102 can adopt devices such as a linear motor or an electric push rod. The sealing sleeve 5101 is sleeved and slid on the outside of the connecting pipe 50. The second linear driving device 5102 is fixed on the outside of the connecting pipe 50 and is fixedly connected to the connecting pipe 50 through a driving part. When the sealing sleeve 5101 is located outside the discharge opening 53, the discharge opening 53 can be blocked, and at this time, the materials cannot enter the connecting pipe 50 through the discharge opening 53.

[0048] And discharge holes are provided at the lower part of the mixing tank 10 and the lower part of the storage tank 20. While the sealing sleeve 5101 is sleeved on the outside of the connecting pipe 50, it is also inserted and slid in the discharge holes. A first sealing ring 5104 sleeved on the outside of the sealing sleeve 5101 is fixedly installed inside the discharge holes for sealing between the discharge holes and the sealing sleeve 5101. And a second sealing ring 5105 in contact with the inner surface of the sealing sleeve 5101 is sleeved and fixed on the outside of the connecting pipe 50 for sealing between the sealing sleeve 5101 and the connecting pipe 50.

[0049] A sealing gasket 5103 is also sleeved on the outside of the connecting pipe 50 above the sealing sleeve 5101. When the sealing sleeve 5101 is located outside the discharge opening 53, the sealing gasket 5103 is clamped between the sealing sleeve 5101 and the connecting pipe 50, so as to ensure the effective blocking of the discharge opening 53.

[0050] Inside the connecting pipe 50, there are blanking augers 52 rotatably connected at the two blanking ports 53 respectively. The spiral directions of the two blanking augers 52 are the same and opposite to the spiral direction of the lifting auger 1202. The two blanking augers 52 are coaxially fixedly connected to each other, and the upper end of the upper blanking auger 52 is fixedly connected to the lower end of the lifting auger 1202. Therefore, while the stirring motor 11 drives the planetary stirring assembly 1201 and the lifting auger 1202 to rotate and stir, it will also drive the two blanking augers 52 to rotate, so as to convey the materials entering the connecting pipe 50 through the blanking ports 53 downward, thereby preventing the materials from being blocked in the connecting pipe 50 and ensuring smooth discharging.

[0051] Refer to Figure 1 With 2 , there is a discharging mechanism 31 provided between the three-roll grinding device 30 and the circulation system 40, which is used to discharge the ground materials into the circulation system 40 or the outside.

[0052] The circulation system 40 includes a receiving hopper 41 and a hose pump 42. The upper part of the receiving hopper 41 is open and located at the discharging place of the three-roll grinding device 30. There is a suction pipe 44 connected between the receiving hopper 41 and the feeding end of the hose pump 42, and a return pipe 43 is connected between the discharging end of the hose pump 42 and the storage tank 20.

[0053] Refer to Figure 8 , the discharging mechanism 31 includes an upper scraper 3101 and a lower scraper 3102 which are distributed up and down. The upper scraper 3101 and the lower scraper 3102 are both slidably installed vertically on the three-roll grinding device 30. There is a gap between the upper scraper 3101 and the lower scraper 3102 and they are fixedly connected with a connecting frame.

[0054] The three-roll grinding device 30 is also fixedly connected with a first linear driving device 3103. The driving end of the first linear driving device 3103 is fixedly connected to the lower scraper 3102. The first linear driving device 3103 can be a cylinder or a hydraulic rod.

[0055] Moreover, both the upper scraper 3101 and the lower scraper 3102 are inclined. When the upper end of the upper scraper 3101 contacts the grinding roller of the three-roll grinding device 30, the lower scraper 3102 is separated from the grinding roller. At this time, the upper scraper 3101 can scrape off the ground materials on the grinding roller and guide them into the receiving hopper 41. When the upper end of the lower scraper 3102 contacts the grinding roller, the upper end of the upper scraper 3101 is separated from the grinding roller. At this time, the lower scraper 3102 can scrape off the ground materials on the grinding roller and discharge them to an external storage device.

[0056] Refer to Figures 1 to 3 And Figure 9, the lower end of the connecting pipe 50 is fixedly connected with a material leveling mechanism 21 at the feeding place of the three-roll grinding device 30. The material leveling mechanism 21 includes a fan-shaped material leveling box 2101. An upper part inside the material leveling box 2101 is provided with a material cavity 2102 communicating with the connecting pipe 50. A plurality of material leveling channels 2103 are provided in the lower part inside the material leveling box 2101. The material leveling channels 2103 are distributed divergently outward from top to bottom, and are used for uniformly conveying the materials discharged from the connecting pipe 50 into the three-roll grinding device 30.

[0057] The diamond grinding paste prepared by the above method can be applied to the cleaning and treatment of the surfaces of automobiles, metal processing and household products.

[0058] In the present invention, when preparing the diamond grinding paste, impurities on the surface of the diamond micropowder are removed by ball milling or ultrasonic cleaning, and then dried and reserved. The stabilizer, dispersant and lubricant are premixed in proportion, and then heated to a liquid state to obtain a mixed liquid. Then, the cleaned diamond micropowder and the mixed liquid are added into the stirring box 10 through the feeding port of the stirring box 10. The stirring motor 11 is started, and the planetary stirring assembly 1201 and the lifting auger 1202 can be driven to rotate. The rotation of the planetary stirring assembly 1201 can efficiently stir the materials. At the same time, the lower-layer materials being stirred can enter the connecting pipe 50 through the lifting port 1203, and are lifted by the rotating lifting auger 1202 and discharged from the upper end of the connecting pipe 50 to the upper layer inside the stirring box 10. Thus, while efficiently stirring, the transfer of the upper and lower layer materials can be promoted, and the stirring effect can be further improved, thereby improving the stirring efficiency, shortening the stirring time to a certain extent, and accelerating the preparation speed.

[0059] When the materials in the stirring box 10 are stirred and dispersed, the opening and closing mechanism 51 at the upper part is started. At this time, the second linear driving device 5102 drives the sealing sleeve 5101 to slide down, and the feeding port 53 is exposed. At this time, the materials in the stirring box 10 can enter the connecting pipe 50 through the upper feeding port 53, and fall into the storage box 20 through the discharging port 54 under the action of the discharging auger 52, so as to achieve the purpose of discharging the materials in the stirring box 10 and temporarily storing them in the storage box 20. Then, the sealing sleeve 5101 is reset and the feeding port 53 is closed and sealed, and raw materials are continuously added into the stirring box 10, and another batch of stirring operations can be carried out.

[0060] Meanwhile, the materials in the storage box 20 start to be conveyed to the material leveling mechanism 21 through the lower feeding port 53 and the discharging auger 52, and are uniformly put into the feeding place of the three-roll grinding device 30, and are ground by the three-roll grinding device 30. Thus, while stirring the above materials, the ground materials after stirring are also subjected to grinding and homogenization treatment, so that the two processes are carried out simultaneously, thereby improving the preparation efficiency to a certain extent.

[0061] The material ground by the three-roll grinding device 30 is output from the last grinding roll and scraped off by the upper scraper 3101, then enters the material receiving hopper 41. Then, under the suction of the hose pump 42, the material in the material receiving hopper 41 can be transported back to the storage tank 20 through the extraction pipe 44 and the reflux pipe 43, and continue to be transported downward to the three-roll grinding device 30 in sequence for the next round of grinding. After meeting the grinding requirements, the first linear driving device 3103 is started to push the upper scraper 3101 and the lower scraper 3102 to slide upward a certain distance. At this time, the upper scraper 3101 is separated from the grinding roll of the three-roll grinding device 30, and the upper end of the lower scraper 3102 begins to contact the grinding roll. At this time, the lower scraper 3102 can scrape off the grinding paste adhered to the outside of the last grinding roll and export it to an external storage device. The exported material is then transferred to the next vacuum degassing machine for degassing treatment.

[0062] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

[0063] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

Claims

1. A method for preparing a diamond grinding paste, characterized in that: The following steps are involved: a. Remove impurities from the surface of diamond powder; b. The stabilizer, dispersant and lubricant are premixed in proportion and then heated to a liquid state to obtain a mixed solution; c. The mixed solution and diamond powder in step b are added to a stirring and homogenizing device (100) and stirred and dispersed sufficiently; d. adding the thickener into the stirring and homogenizing device (100) and stirring and dispersing the mixture sufficiently to obtain a slurry; e. homogenizing the slurry in step d in a stirring and homogenizing device (100) to obtain a grinding paste and then exporting it from the stirring and homogenizing device (100); f. Degassing the abrasive paste in step e; g. Conduct quality inspection on the abrasive paste after degassing.

2. The method for preparing a diamond polishing paste according to claim 1, characterized in that: The stabilizer is nano cellulose or colloidal silicon dioxide.

3. The method for preparing a diamond polishing paste according to claim 1, characterized in that: The dispersant is a modified polymer or a nano-dispersant.

4. The method for preparing a diamond polishing paste according to claim 1, characterized in that: The stirring and homogenizing device (100) comprises, from top to bottom, a stirring box (10), a storage box (20) and a three-roll grinding device (30); a high-efficiency stirring mechanism (12) is provided in the stirring box (10); a connecting pipe (50) is vertically fixed between the stirring box (10), the storage box (20) and the three-roll grinding device (30); an opening and closing mechanism (51) is provided on the connecting pipe (50) between the stirring box (10) and the storage box (20) and between the storage box (20) and the three-roll grinding device (30); and a circulation system (40) is provided between the storage box (20) and the three-roll grinding device (30).

5. The method for preparing a diamond polishing paste according to claim 4, characterized in that: The high-efficiency stirring mechanism (12) comprises a planetary stirring assembly (1201) and a lifting auger (1202) both of which are arranged in the stirring box (10); the lifting auger (1202) is rotatably connected to the inside of the connecting pipe (50) and is connected to the planetary stirring assembly (1201); and a lifting port (1203) is provided on the connecting pipe (50) outside the lifting auger (1202).

6. The method for preparing a diamond polishing paste according to claim 4, characterized in that: The connecting pipe (50) is provided with a feed opening (53) at each of the two opening and closing mechanisms (51), and the connecting pipe (50) is also provided with a discharge opening (54) inside the storage box (20), and the discharge opening (54) is located between the two feed openings (53).

7. The method for preparing a diamond polishing paste according to claim 6, characterized in that: The opening and closing mechanism (51) comprises a sealing sleeve (5101) and a second linear drive device (5102); the sealing sleeve (5101) is sleeved and slidably mounted on the outside of the connecting pipe (50); and the second linear drive device (5102) is fixed to the outside of the connecting pipe (50) and is fixedly connected to the connecting pipe (50) via a drive unit.

8. The method for preparing a diamond polishing paste according to claim 6, characterized in that: The interior of the connecting pipe (50) is rotatably connected to two material discharge ports (53), respectively, with material discharge screws (52), and the material discharge screws (52) are connected to the high-efficiency stirring mechanism (12).

9. The method for preparing a diamond polishing paste according to claim 4, characterized in that: A discharge mechanism (31) is provided between the three-roller grinding device (30) and the circulation system (40), and is used to discharge the ground material into or outside the circulation system (40).

10. Use of the diamond polishing paste prepared by the method according to any one of claims 1 to 9, characterized in that: Used for cleaning and treatment of automobile, metal processing and household product surfaces.

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