Polyethylene wax microcapsule preparation equipment with good coating effect

Abstract

The utility model relates to the technical field of microcapsule preparation, in particular to polyethylene wax microcapsule preparation equipment with a good coating effect, which comprises a mixing tank, the mixing tank comprises a shell and an inner container, a heating component is arranged between the shell and the inner container, and a stirring component is arranged in the inner container. A core material solution and a wall material solution which are obtained after treatment of the mixing tank, the heating assembly and the stirring assembly are added into the mixing tank according to a certain volume ratio, the heating assembly and the stirring assembly are started to conduct an emulsion reaction on the solutions, then stable emulsion is formed, then the emulsion is injected into the atomization assembly in the drying tower, and the emulsion is atomized. The air heater is started to convey hot air into the drying tower, so that the emulsion is dispersed into tiny liquid drops under atomization treatment of the atomization assembly, the tiny liquid drops make full contact with the hot air in the drying tower and are rapidly dried to form microcapsules, and then the polyethylene wax microcapsules with the good coating effect can be obtained; the leakage of the polyethylene wax in the storage and use processes can be effectively prevented, so that the coating stability of the microcapsule is improved.

Description

Technical Field

[0001] This utility model relates to a device for preparing polyethylene wax microcapsules with good coating effect, belonging to the field of microcapsule preparation technology. Background Technology

[0002] Polyethylene wax microcapsules have a wide range of applications in many fields such as coatings, inks, and plastics processing. By encapsulating polyethylene wax in tiny capsules, the properties of polyethylene wax can be effectively protected and its release can be achieved under specific conditions.

[0003] Traditional preparation methods result in polyethylene wax microcapsules with uneven wall thickness, with some areas being too thin. This leads to premature leakage of polyethylene wax during storage or use, affecting product performance. Furthermore, the bonding force between the wall material and the polyethylene wax is weak, making the microcapsules prone to rupture when subjected to external environmental factors such as temperature and humidity changes or mechanical forces. This significantly reduces the stability of the polyethylene wax microcapsule coating.

[0004] Therefore, it is urgent to improve polyethylene wax microcapsules with good encapsulation effect in order to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a polyethylene wax microcapsule preparation device with good coating effect. The device involves adding core and wall material solutions, obtained after processing by a mixing tank, heating component, and stirring component, into the mixing tank at a certain volume ratio. The heating and stirring components are then activated to perform an emulsification reaction, forming a stable emulsion. This emulsion is then injected into an atomizing component inside a drying tower. An air heater is activated to supply hot air to the drying tower, allowing the emulsion to be dispersed into tiny droplets by the atomizing component. These droplets come into full contact with the hot air within the drying tower, resulting in rapid drying and the formation of microcapsules. This process yields polyethylene wax microcapsules with good coating effect, effectively preventing leakage of polyethylene wax during storage and use, thereby improving the coating stability of the microcapsules.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A device for preparing polyethylene wax microcapsules with good encapsulation effect includes a mixing tank, which includes an outer shell and an inner liner. A heating component is disposed between the outer shell and the inner liner. A stirring component is disposed inside the inner liner. A drying tower is disposed on one side of the mixing tank. An atomizing component is disposed inside the drying tower. An air heater is disposed on one side of the drying tower.

[0008] Preferably, the heating assembly includes a heating frame, which is fixedly installed inside the inner liner, and a heating rod is fixedly mounted on the heating frame. A heating wire is disposed inside the heating rod, and the heating wire is connected to an external power source through a wire. An insulating member is disposed between the heating wire and the heating rod, and the insulating member is disposed inside the heating rod.

[0009] Preferably, the stirring assembly includes a stirring motor, which is fixedly installed on the upper end of the outer shell, and a stirring rod is fixedly connected to the output end of the stirring motor. The end of the stirring rod away from the stirring motor passes through the outer shell and the inner liner and extends into the interior of the inner liner. A spiral stirring paddle is fixedly connected to the upper half of the stirring rod, and an anchor stirring paddle is fixedly connected to the lower half of the stirring rod. Both the spiral stirring paddle and the anchor stirring paddle are disposed inside the inner liner.

[0010] Preferably, the atomizing component includes a drive motor, which is fixedly installed at the upper end of the drying tower. The output end of the drive motor is fixedly connected to a drive shaft. The end of the drive shaft away from the drive motor passes through the drying tower and extends into the interior of the drying tower. The end of the drive shaft located inside the drying tower is fixedly connected to an atomizing disc. The atomizing disc has several evenly distributed guide grooves. The upper end of the atomizing disc is rotatably connected to a connecting disc, which is rotatably connected to the drive shaft.

[0011] Preferably, a feed pipe is provided on one side of the outer shell, a first discharge pipe is provided below the feed pipe, and a second discharge pipe is provided on the other side of the outer shell. The feed pipe, the first discharge pipe, and the second discharge pipe are all connected to the inner liner. A peristaltic pump is fixedly connected to the end of the second discharge pipe away from the outer shell, and a connecting pipe is fixedly connected to the other end of the peristaltic pump. The end of the connecting pipe away from the peristaltic pump passes through the drying tower and is connected to the connecting plate.

[0012] Preferably, a third discharge pipe is fixedly connected to one side of the drying tower, and a hot air pipe is provided above the third discharge pipe. One end of the hot air pipe is connected to the drying tower, and the other end of the hot air pipe is connected to the air heater. A fan is installed on one side of the air heater.

[0013] Preferably, the feed pipe, the first discharge pipe, the second discharge pipe, and the third discharge pipe are all equipped with solenoid valves.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. This invention involves adding the core material and wall material solutions obtained after processing by a mixing tank, heating component, and stirring component into a mixing tank at a certain volume ratio. The heating component and stirring component are then activated to emulsify the solution, thereby forming a stable emulsion. The emulsion is then injected into the atomizing component inside a drying tower. The air heater is activated to supply hot air to the interior of the drying tower, causing the emulsion to be dispersed into tiny droplets under the atomization treatment of the atomizing component. These droplets come into full contact with the hot air inside the drying tower, resulting in rapid drying and the formation of microcapsules. This process yields polyethylene wax microcapsules with good coating effect, effectively preventing leakage of polyethylene wax during storage and use, thereby improving the coating stability of the microcapsules. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 Schematic diagram of the overall structure provided by this utility model Figure 1 ;

[0018] Figure 2 A cross-sectional view of the overall structure provided for this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the present invention;

[0020] Figure 4 A cross-sectional view of the heating rod provided by this utility model;

[0021] Figure 5 A schematic diagram of the stirring assembly structure provided by this utility model;

[0022] Figure 6 Schematic diagram of the overall structure provided by this utility model Figure 2 .

[0023] In the diagram, 1. Mixing tank; 101. Outer shell; 102. Inner liner; 2. Heating assembly; 21. Heating frame; 22. Heating rod; 23. Heating wire; 24. Insulating component; 3. Stirring assembly; 31. Stirring motor; 32. Stirring rod; 33. Spiral stirrer; 34. Anchor stirrer; 4. Drying tower; 5. Atomizing assembly; 51. Drive motor; 52. Drive shaft; 53. Atomizing disc; 54. Guide channel; 55. Connecting disc; 6. Air heater; 7. Feed pipe; 8. First discharge pipe; 9. Second discharge pipe; 10. Peristaltic pump; 11. Connecting pipe; 12. Third discharge pipe; 13. Hot air pipe; 14. Fan; 15. Solenoid valve. Detailed Implementation

[0024] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] like Figure 1 - Figure 6 As shown, the polyethylene wax microcapsules with good encapsulation effect provided in this embodiment include a mixing tank 1, which includes an outer shell 101 and an inner liner 102. A heating component 2 is disposed between the outer shell 101 and the inner liner 102. A stirring component 3 is disposed inside the inner liner 102. A drying tower 4 is disposed on one side of the mixing tank 1. An atomizing component 5 is disposed inside the drying tower 4. An air heater 6 is disposed on one side of the drying tower 4. Polyethylene wax is injected into the mixing tank 1 and heated by the heating component 2 to melt it. Then, a surfactant accounting for 3%-5% of its mass is added to the molten polyethylene wax. The stirring component 3 is turned on to mix and stir, so that the surfactant is evenly dispersed on the surface of the polyethylene wax, completing the pretreatment of the core material. Then, gelatin and polymethyl methacrylate are dissolved in acetone at a mass ratio of 1:2-1:3 to prepare a solution with a mass fraction of 10%. A 15% solution is injected into mixing tank 1, and then 0.5%-1% of initiator by mass of monomer is added to the solution. The mixture is stirred by stirring component 3 to obtain a wall material solution. Finally, the pretreated core material and wall material solution are added to mixing tank 1 at a volume ratio of 1:3-1:4. Heating component 2 and stirring component 3 are turned on to carry out an emulsification reaction of the solution, thereby forming a stable emulsion. Then, the emulsion is injected into atomizing component 5 inside drying tower 4, and air heater 6 is turned on to supply hot air to the inside of drying tower 4. The emulsion is dispersed into tiny droplets by atomization by atomizing component 5, and fully contacts the hot air in the drying tower, quickly drying to form microcapsules. This results in polyethylene wax microcapsules with good coating effect, which can effectively prevent the leakage of polyethylene wax during storage and use, thereby improving the coating stability of microcapsules.

[0026] Furthermore, such as Figure 1 - Figure 6As shown, the heating assembly 2 includes a heating frame 21, which is fixedly installed inside the inner liner 102. A heating rod 22 is fixedly mounted on the heating frame 21, and a heating wire 23 is installed inside the heating rod 22. The heating wire 23 is connected to an external power source via a wire, and an insulating component 24 is installed between the heating wire 23 and the heating rod 22. The insulating component 24 is located inside the heating rod 22. The heating frame 21 provides stable support for the heating rod 22, ensuring its stable position when working in the mixing tank 1, and not affecting the processing of various materials in the inner liner 102. The wire is connected to an external power source. When energized, it generates heat, providing the necessary thermal energy for the melting of polyethylene wax and subsequent emulsification reactions. The temperature is precisely controlled to meet the temperature requirements at different stages, ensuring the smooth progress of each reaction. The insulating component 24 between the heating wire 23 and the heating rod 22 effectively prevents current from being conducted from the heating wire 23 to the heating rod 22, preventing electric shock hazards when operators touch the heating rod 22 and ensuring operational safety. It also avoids short circuits and other malfunctions caused by current leakage, thus providing continuous and safe heating conditions for the preparation of polyethylene wax microcapsules.

[0027] Furthermore, such as Figure 1 - Figure 6 As shown, the stirring assembly 3 includes a stirring motor 31, which is fixedly mounted on the upper end of the outer shell 101. A stirring rod 32 is fixedly connected to the output end of the stirring motor 31. The end of the stirring rod 32 away from the stirring motor 31 passes through the outer shell 101 and the inner liner 102, extending into the interior of the inner liner 102. A spiral stirring paddle 33 is fixedly connected to the upper half of the stirring rod 32, and an anchor stirring paddle 34 is fixedly connected to the lower half of the stirring rod 32. Both the spiral stirring paddle 33 and the anchor stirring paddle 34 are located inside the inner liner 102. When the stirring motor 31 is turned on, it drives the stirring rod 32 to rotate. The spiral stirring paddle 33 in the upper half of the stirring rod 32 rotates under the influence of the stirring motor 31. High-speed rotation can quickly lift the material fed into the inner liner 102 and form an axial circulation flow, causing the material to tumble up and down, accelerating the initial mixing of different components and improving mixing efficiency. The anchor-type stirring paddle 34 in the lower part is close to the bottom of the inner liner 102, which can effectively scrape up the material at the bottom and prevent the material from settling. Especially in the process of polyethylene wax melting and subsequent reaction, it can ensure that the material at the bottom also fully participates in the mixing and reaction, avoiding local overheating or uneven reaction. This ensures that the surfactant is uniformly dispersed in the polyethylene wax, the wall material solution is fully mixed, and the core material and wall material solution achieve a stable emulsification reaction during the preparation of polyethylene wax microcapsules, thereby improving the quality and performance of the microcapsules.

[0028] Furthermore, such as Figure 1 - Figure 6As shown, the atomizing component 5 includes a drive motor 51, which is fixedly installed at the upper end of the drying tower 4. The output end of the drive motor 51 is fixedly connected to a drive shaft 52. The end of the drive shaft 52 away from the drive motor 51 passes through the drying tower 4 and extends into the interior of the drying tower 4. The end of the drive shaft 52 located inside the drying tower 4 is fixedly connected to an atomizing disk 53. The atomizing disk 53 has several evenly distributed guide grooves 54. The upper end of the atomizing disk 53 is rotatably connected to a connecting disk 55. The connecting disk 55 is rotatably connected to the drive shaft 52. When the drive motor 51 is started, it drives the drive shaft 52 to rotate, causing the atomizing disk 53 to rotate at high speed. The evenly distributed guide grooves 54 on the atomizing disk 53 can guide the injected emulsion to flow to the edge of the atomizing disk 53 under the action of centrifugal force, and then disperse it into tiny droplets. These droplets then come into full contact with the hot air sent by the air heater 6 inside the drying tower 4, and are quickly dried to form microcapsules, thereby greatly improving the formation efficiency and quality uniformity of the microcapsules.

[0029] Furthermore, such as Figure 1 - Figure 6 As shown, a feed pipe 7 is provided on one side of the outer shell 101, a first discharge pipe 8 is provided below the feed pipe 7, and a second discharge pipe 9 is provided on the other side of the outer shell 101. The feed pipe 7, the first discharge pipe 8, and the second discharge pipe 9 are all connected to the inner liner 102. A peristaltic pump 10 is fixedly connected to the end of the second discharge pipe 9 away from the outer shell 101, and a connecting pipe 11 is fixedly connected to the other end of the peristaltic pump 10. The end of the connecting pipe 11 away from the peristaltic pump 10 passes through the drying tower 4 and is connected to the connecting plate 55. A third discharge pipe 12 is fixedly connected to one side of the drying tower 4. A hot air pipe 13 is provided above the third discharge pipe 12. One end of the hot air pipe 13 is connected to the drying tower 4, and the other end of the hot air pipe 13 is connected to the air heater 6. A fan 14 is installed on one side of the air heater 6. Both the first and third discharge pipes 12 are equipped with solenoid valves 15. The feed pipe 7 is used to inject raw materials such as polyethylene wax and surfactants into the inner liner 102, and the solenoid valve 15 on it can control the feed rate. Different products in the inner liner 102 can be discharged as needed through the first discharge pipe 8. When the peristaltic pump 10 is turned on, the emulsion inside the inner liner 102 can be transported to the connecting plate 55 in the drying tower 4 through the second discharge pipe 9 and the connecting pipe 11, and atomized by the atomizing plate 53. The solenoid valve 15 on the second discharge pipe 9 can control the opening and closing of the second discharge pipe 9. The third discharge pipe 12 is used to discharge the microcapsule finished product formed after drying in the drying tower 4. Under the action of the fan 14 and the air heater 6, hot air can be sent into the drying tower 4 through the hot air pipe 13 to provide heat for the drying of the emulsion, thereby improving the preparation efficiency and quality of polyethylene wax microcapsules.

[0030] like Figure 1 - Figure 6As shown, the principle of the polyethylene wax microcapsules with good encapsulation effect provided in this embodiment is as follows:

[0031] First, open the solenoid valve 15 on the feed pipe 7 to inject polyethylene wax into the inner liner 102 through the feed pipe 7. Then close the solenoid valve 15 on the feed pipe 7. At this time, energize the heating wire 23 to conduct heat to the heating rod 22 to heat the polyethylene wax in the inner liner 102 and melt it. Then add 3%-5% of the surfactant by mass to the molten polyethylene wax. At this time, turn on the stirring motor 31 to drive the stirring rod 32 to rotate, which drives the spiral stirring paddle 33 and the anchor stirring paddle 34 on the stirring rod 32 to rotate, mix and stir the polyethylene wax solution and surfactant in the inner liner 102, so that the surfactant is evenly dispersed on the surface of the polyethylene wax, and complete the pretreatment of the core material. Finally, open the solenoid valve 15 on the first discharge pipe 8 to discharge the core material out through the first discharge pipe 8 for collection. After completion, close the solenoid valve 15 on the first discharge pipe 8.

[0032] Next, gelatin and polymethyl methacrylate are dissolved in acetone at a mass ratio of 1:2-1:3 to prepare a solution with a mass fraction of 10%-15%. The solenoid valve 15 on the feed pipe 7 is opened again to inject the solution into the inner liner 102 through the feed pipe 7. Then, an initiator accounting for 0.5%-1% of the total mass of the monomers is added to the solution. The mixture is then stirred by the stirring assembly 3 to obtain the wall material solution. Finally, the solenoid valve 15 on the first discharge pipe 8 is opened to discharge the obtained wall material solution out through the first discharge pipe 8 for collection. Finally, the solenoid valve 15 on the first discharge pipe 8 is closed.

[0033] Finally, the pretreated core material and wall material solution is added into the inner liner 102 through the feed pipe 7 at a volume ratio of 1:3-1:4. The heating component 2 and the stirring component 3 are turned on to emulsify the solution and form a stable emulsion. At this time, the solenoid valve 15 on the second discharge pipe 9 is opened, and the peristaltic pump 10 is turned on to transport the emulsion inside the inner liner 102 to the connecting plate 55 in the drying tower 4 through the second discharge pipe 9 and the connecting pipe 11. Then, the drive motor 51 is started to drive the rotating shaft 52 to rotate, so that the atomizing plate 53 rotates at high speed. The guide grooves 54 evenly distributed on the atomizing plate 53 guide the injected emulsion to flow to the edge of the atomizing plate 53 under the action of centrifugal force, and then dispersed into tiny droplets. At this time, the air heater 6 and the fan 14 are turned on to deliver hot air into the drying tower 4 through the hot air pipe 13. The emulsion and the hot air come into full contact in the drying tower and dry quickly to form microcapsules, thus obtaining polyethylene wax microcapsules with good coating effect.

[0034] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0035] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0036] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A polyethylene wax microcapsule preparation device with good coating effect, comprising a mixing tank (1), characterized in that: The mixing tank (1) comprises a shell (101) and an inner container (102), a heating assembly (2) is arranged between the shell (101) and the inner container (102), the inside of the inner container (102) is provided with a stirring assembly (3), one side of the mixing tank (1) is provided with a drying tower (4), the inside of the drying tower (4) is provided with an atomizing assembly (5), and one side of the drying tower (4) is provided with an air heater (6).

2. The polyethylene wax microcapsule preparation device with good coating effect according to claim 1, characterized in that: The heating assembly (2) comprises a heating frame (21) fixedly installed in the inside of the inner container (102), and a heating rod (22) is fixedly arranged on the heating frame (21), the inside of the heating rod (22) is provided with a heating wire (23), the heating wire (23) is connected with an external power supply through a wire, and an insulating part (24) is arranged between the heating wire (23) and the heating rod (22), and the insulating part (24) is arranged in the inside of the heating rod (22).

3. The polyethylene wax microcapsule preparation device with good coating effect according to claim 1, characterized in that: The stirring assembly (3) comprises a stirring motor (31) fixedly installed at the upper end of the shell (101), and the output end of the stirring motor (31) is fixedly connected with a stirring rod (32), one end of the stirring rod (32) away from the stirring motor (31) penetrates through the shell (101) and the inner container (102) and extends into the inside of the inner container (102), the upper half of the stirring rod (32) is fixedly connected with a spiral stirring paddle (33), the lower half of the stirring rod (32) is fixedly connected with an anchor stirring paddle (34), and the spiral stirring paddle (33) and the anchor stirring paddle (34) are arranged in the inside of the inner container (102).

4. The polyethylene wax microcapsule preparation device with good coating effect according to claim 1, characterized in that: The atomizing assembly (5) comprises a driving motor (51) fixedly installed at the upper end of the drying tower (4), and the output end of the driving motor (51) is fixedly connected with a driving shaft (52), one end of the driving shaft (52) away from the driving motor (51) penetrates through the drying tower (4) and extends into the inside of the drying tower (4), and one end of the driving shaft (52) located in the inside of the drying tower (4) is fixedly connected with an atomizing disc (53), a plurality of uniformly distributed flow guide grooves (54) are formed in the atomizing disc (53), and the upper end of the atomizing disc (53) is rotatably connected with a connecting disc (55), and the connecting disc (55) is rotatably connected with the driving shaft (52).

5. The polyethylene wax microcapsule preparation device with good coating effect according to claim 4, characterized in that: One side of the shell (101) is provided with a feeding pipe (7), the lower side of the feeding pipe (7) is provided with a first discharging pipe (8), and the other side of the shell (101) is provided with a second discharging pipe (9), the feeding pipe (7), the first discharging pipe (8) and the second discharging pipe (9) are connected with the inner container (102), and one end of the second discharging pipe (9) away from the shell (101) is fixedly connected with a peristaltic pump (10), the other end of the peristaltic pump (10) is fixedly connected with a connecting pipe (11), and one end of the connecting pipe (11) away from the peristaltic pump (10) penetrates through the drying tower (4) and is connected with the connecting disc (55).

6. The polyethylene wax microcapsule preparation device with good coating effect according to claim 5, characterized in that: One side of the drying tower (4) is fixedly connected with a third discharging pipe (12), the upper side of the third discharging pipe (12) is provided with a hot air pipe (13), one end of the hot air pipe (13) is connected with the drying tower (4), and the other end of the hot air pipe (13) is connected with the air heater (6), and one side of the air heater (6) is installed with a fan (14).

7. The polyethylene wax microcapsule preparation device with good coating effect according to claim 6, characterized in that: The feeding pipe (7), the first discharging pipe (8), the second discharging pipe (9) and the third discharging pipe (12) are all installed with electromagnetic valves (15).

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