A microencapsulated phase-change silicone automatic temperature control material preparation device and preparation process thereof

Abstract

The present invention relates to the technical field of temperature control material preparation, and discloses a microencapsulated phase change silicone automatic temperature control material preparation device and its preparation process, comprising: a stirring kettle, a top cover, a transmission shaft, a stirring blade and a spiral discharging rod, wherein the top of the stirring kettle is movably mounted with a top cover, a side surface of the stirring kettle is movably mounted with a transmission shaft, and one end of the transmission shaft is fixedly mounted with a stirring blade. The present application provides an auxiliary discharge device so that the spiral discharging rod can efficiently discharge a large amount of material, thereby effectively improving the discharge efficiency. By providing a constant temperature discharging device, the material itself can obtain a heat preservation effect and will not lose a large amount of heat energy during the discharging process, thereby maintaining good fluidity of the material during the discharging process, preventing viscosity and solidification, and thereby improving the discharge quality of the material. By providing a constant temperature discharging device, the effect of efficient discharging is achieved, and there is no residual material sticking to the wall.

Description

Technical Field

[0001] The present application relates to the technical field of temperature control material preparation, and in particular to a device for preparing microencapsulated phase-change silicone automatic temperature control material and a preparation process thereof. Background Art

[0002] Phase change materials have broad application potential in cooling and heat dissipation processes in solar energy, architecture, textiles, and electronic devices. Microencapsulated phase change automatic temperature control materials, with a SiO2 nanoparticle core and silicone sealant shell structure, are more stable and environmentally friendly than traditional emulsions. They also exhibit high performance in stable endothermic and exothermic cycles, making them widely used in automatic temperature-regulating protective coatings and energy storage materials. The preparation of microencapsulated phase change silicone automatic temperature control materials currently relies on a vacuum kneader to mix and knead the raw materials. These machines consist of six main components: a kneading unit, a base unit, a hydraulic system, a transmission system, a vacuum system, and an electronic control system. The kneading unit comprises a cylinder, a paddle shaft, wall panels, and a cylinder cover. The hydraulic system consists of a hydraulic station that operates two small and two large cylinders to open and close the cover and tilt the mixing cylinder. The shearing, squeezing, and stirring action of the cooperating blades rapidly and evenly mixes the materials, achieving the desired preparation effect.

[0003] Existing vacuum kneaders generally use a screw discharge method. After the material mixing is completed, the material falls to the screw and is continuously extruded by the screw to complete the material transportation. However, when the vacuum kneader is preparing microencapsulated phase change silicone automatic temperature control materials, the material falls to the discharge port by its own gravity, and the screw cannot independently and actively obtain the material, which leads to slow screw discharge efficiency. At the same time, due to the slow screw discharge rate, the material hardens or solidifies due to heat loss during transportation, thereby affecting the material quality and causing the material quality to deteriorate. Summary of the Invention

[0004] This application proposes a microencapsulated phase change silicone automatic temperature control material preparation device and its preparation process, which has the advantages of accelerating material discharge efficiency and ensuring discharge quality, and is used to solve the problems of low discharge efficiency and poor discharge quality of existing materials.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a device for preparing microencapsulated phase-change silicone automatic temperature control material, comprising: a stirring kettle, a top cover, a transmission shaft, a stirring blade and a spiral discharging rod, the top of the stirring kettle is movably installed with a top cover, the one side surface of the stirring kettle is movably installed with a transmission shaft, one end of the transmission shaft is fixedly installed with a stirring blade, a spiral discharging rod is movably installed in the middle of the bottom end of the inner cavity of the stirring kettle, an auxiliary unloading device located below the bottom end of the stirring blade is movably installed in the inner cavity of the stirring kettle, ventilation cavities are opened on both sides of the bottom end of the stirring kettle, a constant temperature discharging device is movably installed in the inner cavity of the ventilation cavity, a third cover is fixedly installed on the outside of one end of the spiral discharging rod, and an air supply pipe is fixedly installed on the top of one end of the constant temperature discharging device.

[0006] Furthermore, the auxiliary unloading device includes a rotating rod, a digging plate, a first conductive sheet, an electromagnet, a pushing plate, a second conductive sheet and a first motor. The rotating rod is movably installed in the inner cavity of the stirring kettle. The digging plates are fixedly installed on both sides of the rotating rod. The first conductive sheet is fixedly installed on the side surface of one end of the digging plate. The outer surfaces of both sides of the rotating rod are fixedly installed with electromagnets. A pushing plate located on one side surface of the digging plate is movably installed on the outside of one side of the electromagnet. The second conductive sheet is provided in the inner cavity of the rotating rod.

[0007] Furthermore, the constant temperature discharging device includes an auxiliary discharging rod, a connecting transmission rod, a second motor, a suction impeller, a first cover shell, a second cover shell and a heating element. The auxiliary discharging rod is movably installed in the inner cavity of the ventilation cavity, one end of the auxiliary discharging rod is fixedly installed with the connecting transmission rod, one end of the connecting transmission rod is fixedly installed with the second motor, one end of the second motor is fixedly installed with the suction impeller, the outside of the suction impeller is fixedly installed with the first cover shell, the other end of the auxiliary discharging rod is fixedly installed with the second cover shell, and a heating element is provided in the middle inner cavity of the auxiliary discharging rod.

[0008] Furthermore, the shape of the rotating rod is cylindrical, and the interior of the rotating rod is hollow. A hole is opened on the outer surface of one end of the rotating rod. The shape of the digging plate is semi-arc-shaped, and the digging plate has thermal conductivity. There are two digging plates, and the two digging plates are oriented in opposite directions. The first conductive sheet is conductive, the push plate is magnetic, and the magnetism of the push plate is repulsive to the magnetism displayed after the electromagnet is energized. The push plate and the digging plate are slidably connected, and a reset spring is provided at the connection between the push plate and the digging plate. The second conductive sheet is semi-cylindrical, and the second conductive sheet is conductive.

[0009] Furthermore, there are two auxiliary discharging rods, and the auxiliary discharging rods are screw-shaped. The cavity wall on one side of the ventilation cavity is elastic. The diameter of the auxiliary discharging rod is larger than the cavity width of the ventilation cavity. The auxiliary discharging rods are thermally conductive.

[0010] Furthermore, both ends of the bottom of the air supply pipe are respectively connected to the top of the second cover shell, one end of the top of the air supply pipe is slidably connected to one end of the rotating rod, and the pipe opening of the air supply pipe is opposite to the opening of the rotating rod.

[0011] A preparation process of a microencapsulated phase-change silicone automatic temperature control material preparation device comprises the following steps:

[0012] S1, preparing polysorbate and sorbitan fatty acid ester (mass ratio is 1:1) into an emulsifier;

[0013] S2, then mixing the emulsifier with n-tetradecane to obtain an oil phase;

[0014] S3, mixing water and polyvinyl alcohol to obtain an aqueous phase;

[0015] S4, then the oil phase and the water phase are dispersed and homogenized at a speed of 500 r / min at 25° C. for 30 minutes, mixed and emulsified to obtain an emulsion;

[0016] S5, then the emulsion and sodium chloride are mixed at a speed of 500 r / min at 25 ° C for 60 minutes, and then the mixture is stirred and mixed with acetic acid and ethyl orthosilicate in a vacuum kneader to prepare a microencapsulated phase change silicone automatic temperature control material. When stirring in the vacuum kneader, the processing temperature is 55 ° C, the stirring speed is 300 r / min, and the stirring is carried out for 3 hours;

[0017] S6. After the stirring is completed, water is added, filtered, and then dried to complete the preparation of the microencapsulated phase change silicone automatic temperature control material.

[0018] This application has the following beneficial effects:

[0019] The present application provides a device for preparing microencapsulated phase-change silicone automatic temperature control materials. By setting an auxiliary unloading device, the material that has completed the mixing work at the stirring blade is continuously delivered to the spiral discharging rod, thereby accelerating the unloading rate of the material, so that the material can be transported to the spiral discharging rod in large quantities and quickly, so that the spiral discharging rod can efficiently discharge a large amount of material, thereby effectively improving the discharging efficiency, and thus also improving the preparation efficiency of the microencapsulated phase-change silicone automatic temperature control material.

[0020] By setting up a constant temperature discharging device, when the digging plate continuously digs materials for transportation, the digging resistance of the digging plate is reduced, the digging efficiency is improved, and the material discharging efficiency is also improved. At the same time, when the spiral discharging rod encloses the material for continuous spiral transportation, the material itself can be kept warm and will not lose a large amount of heat energy during the discharging process, so that the material maintains good fluidity during the discharging process, prevents viscosity and solidification, and thus improves the material discharge quality.

[0021] By setting up a constant temperature discharging device, when the auxiliary discharging rod continues to rotate, the cavity wall of the ventilation cavity changes in a wave-like manner with the rotation of the auxiliary discharging rod, thereby continuously pushing the material located on the side wall of the ventilation cavity forward, and then with the mutual cooperation of the auxiliary discharging rod and the spiral discharging rod, the material inside the discharging trough is completely squeezed out and will not remain on the side wall of the ventilation cavity. When the spiral discharging rod screws out the material, the material in the discharging trough can be squeezed and discharged in all directions, thereby achieving the effect of efficient discharging, without the phenomenon of residual material sticking to the wall, and fully improving the effect of material discharging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles disclosed herein.

[0023] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0024] Figure 1 It is a left side perspective schematic diagram of the structure of the present invention;

[0025] Figure 2 It is a right side perspective schematic diagram of the structure of the present invention;

[0026] Figure 3 It is a schematic diagram of a cross-section of the structure of the present invention;

[0027] Figure 4 It is a schematic front view of the cross section of the structure of the present invention;

[0028] Figure 5 is a schematic cross-sectional perspective view of the first cover shell of the present invention;

[0029] Figure 6 It is a schematic top view of the structure of the present invention;

[0030] Figure 7 For the present invention Figure 3 A partial enlarged schematic diagram of the structure at point A in the middle.

[0031] In the figure: 1. stirring kettle; 2. top cover; 3. transmission shaft; 4. stirring blade; 5. spiral discharge rod; 6. rotating rod; 7. digging plate; 8. first conductive sheet; 9. electromagnet; 10. push plate; 11. second conductive sheet; 12. first motor; 13. ventilation chamber; 14. auxiliary discharge rod; 15. connecting transmission rod; 16. second motor; 17. suction impeller; 18. first cover; 19. second cover; 20. heating element; 20. third cover; 22. air supply pipe. Implementation Method

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application. Example

[0033] See also Figure 1-Figure 7 , a device for preparing microencapsulated phase-change silicone automatic temperature control material, comprising: a stirring kettle 1, a top cover 2, a transmission shaft 3, a stirring blade 4 and a spiral discharging rod 5, the top of the stirring kettle 1 is movably mounted with a top cover 2, a transmission shaft 3 is movably mounted on one side surface of the stirring kettle 1, a stirring blade 4 is fixedly mounted on one end of the transmission shaft 3, a spiral discharging rod 5 is movably mounted in the middle of the bottom end of the inner cavity of the stirring kettle 1, an auxiliary unloading device located below the bottom end of the stirring blade 4 is movably mounted in the inner cavity of the stirring kettle 1, ventilation cavities 13 are opened on both sides of the bottom end of the stirring kettle 1, a constant temperature discharging device is movably mounted in the inner cavity of the ventilation cavity 13, a third cover shell 21 is fixedly mounted on the outside of one end of the spiral discharging rod 5, and an air supply pipe 22 is fixedly mounted on the top of one end of the constant temperature discharging device.

[0034] See also Figure 1-Figure 7, wherein the auxiliary unloading device includes a rotating rod 6, a digging plate 7, a first conductive sheet 8, an electromagnet 9, a pushing plate 10, a second conductive sheet 11 and a first motor 12. The rotating rod 6 is movably installed in the inner cavity of the stirring kettle 1. The digging plates 7 are fixedly installed on both sides of the rotating rod 6. The first conductive sheet 8 is fixedly installed on one end side surface of the digging plate 7. The outer surfaces of both sides of the rotating rod 6 are fixedly installed with electromagnets 9. A pushing plate 10 located on one side surface of the digging plate 7 is movably installed on the outside of one side of the electromagnet 9. A second conductive sheet 11 is provided in the inner cavity of the rotating rod 6. By setting up an auxiliary unloading device, after the material is evenly stirred by the stirring blade 4, the mixed material gradually hangs down and begins to prepare for discharge. When the material is discharged, the rotating rod 6 rotates continuously, thereby driving the digging plate 7 to rotate in a cycle. When the digging plate 7 rotates, the digging plate 7 on one side digs the material during the rotation process until the digging plate 7 turns to the downward direction. At this time, the first conductive sheet 8 touches the second conductive sheet 11, and the conduction of the first conductive sheet 8 and the second conductive sheet 11 causes the electromagnet 9 to be energized to generate magnetism. When the electromagnetic When the iron 9 generates magnetism, the electromagnet 9 generates a magnetic repulsive force on the push plate 10, thereby causing the push plate 10 to move outward. When the push plate 10 moves outward, the push plate 10 squeezes the material on the surface of the digging plate 7 outward, causing the material to break away from the surface of the digging plate 7 and fall to the spiral discharge rod 5. When the digging plate 7 turns to the upward direction again, the digging plate 7 again digs up the mixed material above, and then rotates to move the material to the top of the spiral discharge rod 5 as the digging plate 7 rotates. At the same time, the movement of the push plate 10 is utilized. All the materials on the surface of the digging plate 7 are pushed down and fall to the spiral discharging rod 5. As in the above steps, the auxiliary discharging device operates in a reciprocating cycle, and then the materials that have completed the mixing work at the stirring blade 4 are continuously sent to the spiral discharging rod 5 through the auxiliary discharging device, thereby accelerating the material discharging rate, so that the material can be transported to the spiral discharging rod 5 in large quantities and quickly, so that the spiral discharging rod 5 can efficiently discharge a large amount of material, thereby effectively improving the discharging efficiency, thereby also improving the preparation efficiency of microencapsulated phase change silicone automatic temperature control material.

[0035] See also Figure 1-Figure 7, wherein the constant temperature discharging device includes an auxiliary discharging rod 14, a connecting transmission rod 15, a second motor 16, a suction impeller 17, a first cover 18, a second cover 19 and a heating element 20. The auxiliary discharging rod 14 is movably installed in the inner cavity of the ventilation cavity 13. One end of the auxiliary discharging rod 14 is fixedly installed with the connecting transmission rod 15, one end of the connecting transmission rod 15 is fixedly installed with the second motor 16, one end of the second motor 16 is fixedly installed with the suction impeller 17, the outside of the suction impeller 17 is fixedly installed with the first cover 18, the other end of the auxiliary discharging rod 14 is fixedly installed with the second cover 19, and the middle inner cavity of the auxiliary discharging rod 14 is provided with There is a heating element 20, and a hole is opened on the surface of the first cover 18. By setting a constant temperature discharging device, when the spiral discharging rod 5 continuously discharges the material, the auxiliary discharging rod 14 is driven to rotate by the second motor 16. At the same time, the second motor 16 also drives the suction impeller 17 to rotate. When the suction impeller 17 rotates, a negative pressure environment is generated at the suction impeller 17, and then the external air is continuously sucked back, so that the external air continuously flows into the inner cavity of the ventilation cavity 13 through the first cover 18. Because the heating element 20 has a certain temperature, the auxiliary discharging rod 14 also has a certain temperature. When the air flows into the inner cavity of the ventilation cavity 13, the air is sucked back along with the auxiliary discharging rod 14. The rotation of the auxiliary discharging rod 14 continuously flows through heat conduction, and when the air flows on the surface of the auxiliary discharging rod 14, the heat energy on the surface of the auxiliary discharging rod 14 is conducted to the air, so that the air forms hot air, and the hot air is continuously transported to the inner cavity of the rotating rod 6 through the air supply pipe 22. When the hot air continues to flow in the inner cavity of the rotating rod 6, the surfaces of the rotating rod 6 and the digging plate 7 are affected by the heat conduction of the hot air, and thus have a certain temperature, so that when the digging plate 7 continues to dig materials for transportation, the digging plate 7 can heat the dug materials. When the materials are heated, the viscosity of the materials is reduced and the fluidity is strengthened, thereby reducing the digging resistance of the digging plate 7 and improving the digging efficiency. It also improves the material discharging efficiency. At the same time, because the temperature of the auxiliary discharging rod 14 is constant, the temperature in the inner cavity of the ventilation cavity 13 is also kept at a certain hot temperature, and a constant hot temperature environment is generated in the gap between the two ventilation cavities 13, that is, the discharging trough where the spiral discharging rod 5 is located. When the spiral discharging rod 5 carries out continuous spiral conveying of the material, the material itself can obtain a heat preservation effect and will not lose a large amount of heat energy during the discharging process, so that the material maintains good fluidity during the discharging process, prevents viscosity and solidification, and thus improves the material discharging quality, and prevents the material from becoming viscous due to temperature drop during the discharging process, and cannot be effectively discharged.

[0036] In addition, by setting a constant temperature discharging device, when the spiral discharging rod 5 is discharging in a spiral manner, the auxiliary discharging rod 14 is synchronously spirally rotated. Since the cavity wall of the ventilation cavity 13 is elastic and the diameter of the auxiliary discharging rod 14 is larger than the cavity width of the ventilation cavity 13, the side structure of the auxiliary discharging rod 14 will press the cavity wall of the ventilation cavity 13 on one side, causing the cavity wall of the ventilation cavity 13 with elasticity to deform and bulge outward. Since the auxiliary discharging rod 14 is in the shape of a screw and rotates synchronously with the spiral discharging rod 5, when the auxiliary discharging rod 14 continues to rotate, the cavity wall of the ventilation cavity 13 is compressed. The cavity wall changes in a wave-like manner as the auxiliary discharging rod 14 rotates, thereby continuously pushing the material on the side wall of the ventilation cavity 13 forward. Because the spiral discharging rod 5 also pushes the material to continue to move forward, the auxiliary discharging rod 14 and the spiral discharging rod 5 cooperate with each other, and the material inside the discharge trough is completely squeezed out and will not remain on the side wall of the ventilation cavity 13. When the spiral discharging rod 5 screws out the material, the material in the discharge trough can be squeezed and discharged in all directions, thereby achieving the effect of efficient discharging, without the phenomenon of residual material sticking to the wall, and fully improving the material discharging efficiency.

[0037] See also Figure 1-Figure 7 , wherein, the shape of the rotating rod 6 is cylindrical, and the interior of the rotating rod 6 is hollow, and a hole is opened on the outer surface of one end of the rotating rod 6, the shape of the digging plate 7 is semi-arc-shaped, and the digging plate 7 has thermal conductivity, there are two digging plates 7, and the two digging plates 7 are facing in opposite directions, the first conductive sheet 8 is conductive, the pusher plate 10 is magnetic, and the magnetism of the pusher plate 10 is repelled from the magnetism displayed after the electromagnet 9 is energized, the pusher plate 10 and the digging plate 7 are slidably connected, and a reset spring is provided at the connection between the pusher plate 10 and the digging plate 7, the second conductive sheet 11 is semi-cylindrical, and the second conductive sheet 11 is conductive.

[0038] See also Figure 1-Figure 7 There are two auxiliary discharging rods 14, and the auxiliary discharging rods 14 are screw-shaped. The cavity wall on one side of the ventilation cavity 13 is elastic. The diameter of the auxiliary discharging rod 14 is larger than the cavity width of the ventilation cavity 13, and the auxiliary discharging rod 14 is thermally conductive.

[0039] See also Figure 1-Figure 7 The two ends of the bottom of the air supply pipe 22 are respectively connected to the top of the second cover shell 19, and the top end of the air supply pipe 22 is slidingly connected to one end of the rotating rod 6, and the pipe mouth of the air supply pipe 22 is opposite to the opening of the rotating rod 6.

[0040] A preparation process of a microencapsulated phase-change silicone automatic temperature control material preparation device comprises the following steps:

[0041] S1, preparing polysorbate and sorbitan fatty acid ester (mass ratio is 1:1) into an emulsifier;

[0042] S2, then mixing the emulsifier with n-tetradecane to obtain an oil phase;

[0043] S3, mixing water and polyvinyl alcohol to obtain an aqueous phase;

[0044] S4, then the oil phase and the water phase are dispersed and homogenized at a speed of 500 r / min at 25° C. for 30 minutes, mixed and emulsified to obtain an emulsion;

[0045] S5, then the emulsion and sodium chloride are mixed at a speed of 500 r / min at 25 ° C for 60 minutes, and then the mixture is stirred and mixed with acetic acid and ethyl orthosilicate in a vacuum kneader to prepare a microencapsulated phase change silicone automatic temperature control material. When stirring in the vacuum kneader, the processing temperature is 55 ° C, the stirring speed is 300 r / min, and the stirring is carried out for 3 hours;

[0046] S6. After the stirring is completed, water is added, filtered, and then dried to complete the preparation of the microencapsulated phase change silicone automatic temperature control material.

[0047] The working principle of the method of use of the present invention is as follows:

[0048] When it is necessary to prepare microencapsulated phase-change silicone automatic temperature control materials, the raw materials are first prepared in advance according to the required proportions, and then the prepared raw materials are poured into the inner cavity of the stirring tank 1 in sequence. After the raw materials are inverted, the top cover 2 is placed on the top of the stirring tank 1 through the opening and closing device to seal it. After the top cover 2 is sealed, the existing vacuum pump equipment is started to vacuum the inner cavity of the stirring tank 1. At the same time, the stirring power equipment is started, and the transmission shaft 3 is driven by the power equipment to rotate, and then the transmission shaft 3 drives the stirring blade 4 to rotate, wherein the stirring blade 4 is a "Z"-shaped stirring blade, and the two stirring blades 4 rotate in opposite directions and have a differential speed. The relative differential motion of the stirring blade 4 is used to mix the raw materials in the inner cavity of the stirring tank 1 Stirring, wherein, during the initial stirring period, the top of the discharge trough where the spiral discharge rod 5 is located is in a closed state, that is, during the initial stirring, no material is discharged until the raw materials are stirred and mixed by the stirring blades 4 to form the required materials. After the materials are mixed and prepared, at this time, the control system controls the vacuum pump equipment to stop operating. After the vacuum pump equipment stops, the sealing cover on the top of the discharge trough is pulled out manually or by mechanical equipment to expose the discharge trough to the inner cavity of the stirring tank 1. At the same time, the stirring blades 4 still keep stirring. At this time, the materials have completed the mixing preparation, and then the spiral discharge rod 5, the first motor 12, the second motor 16 and the heating element 20 are started. When the first motor 12 is energized, the first motor 12 drives the rotating rod 6 to Rotation. When the rotating rod 6 rotates, the rotating rod 6 drives the digging plate 7 to rotate in a circular manner. When the digging plate 7 rotates, the digging plate 7 on one side digs the material at the stirring blade 4 during the rotation. Driven by the rotation of the digging plate 7, the material moves with the digging plate 7 until the digging plate 7 turns to the downward direction. At this time, the first conductive sheet 8 touches the second conductive sheet 11, and the current is conducted to the electromagnet 9 through the first conductive sheet 8 and the second conductive sheet 11, so that the electromagnet 9 is energized to generate magnetism. When the electromagnet 9 generates magnetism, the electromagnet 9 generates a magnetic repulsive force on the push plate 10, thereby causing the push plate 10 to move outward. When the push plate 10 moves outward, the push plate 10 squeezes the material on the surface of the digging plate 7 outward, causing the material to break away from the surface of the digging plate 7 and fall to the spiral outlet. The material on the surface of the digging plate 7 is pushed to the spiral discharging rod 5 by the movement of the pushing plate 10. In this way, according to the above steps, the auxiliary unloading device can continuously dig and convey the material during the reciprocating operation, and then the material that has completed the mixing work at the stirring blade 4 is continuously sent to the spiral discharging rod 5 through the auxiliary unloading device, thereby accelerating the unloading rate of the material and enabling the material to be transported to the spiral discharging rod 5 in large quantities and quickly.The spiral discharging rod 5 can efficiently discharge a large amount of materials, thereby improving the discharging efficiency.

[0049] When the spiral discharging rod 5 continues to rotate, the spiral rotation of the spiral discharging rod 5 causes the material to be squeezed and continuously moved forward until it is discharged through the third housing 21 .

[0050] When the spiral discharging rod 5 continuously discharges the material, the second motor 16 runs to drive the auxiliary discharging rod 14 to rotate. At the same time, the second motor 16 also drives the suction impeller 17 to rotate. When the suction impeller 17 rotates, the suction impeller 17 draws the external air into the inner cavity of the ventilation chamber 13. At the same time, the heating element 20 is energized and generates heat, thereby making the surface of the auxiliary discharging rod 14 have a hot temperature. When the air flows into the inner cavity of the ventilation chamber 13, as the auxiliary discharging rod 14 rotates and continuously flows, the surface of the auxiliary discharging rod 14 continuously heats the air, thereby turning the air into hot air. The hot air is continuously delivered to the inner cavity of the rotating rod 6 through the air supply pipe 22. This makes the rotating rod 6 and the digging plate 7 have a certain temperature, so that when the digging plate 7 continues to dig materials for transportation, the digging plate 7 can heat the dug materials to make the fluidity of the materials stronger. At the same time, because the temperature of the auxiliary discharging rod 14 is constant, the temperature in the inner cavity of the ventilation cavity 13 is also kept at a certain hot temperature. Then, a constant hot temperature environment is generated in the gap between the two ventilation cavities 13, that is, the discharging trough where the spiral discharging rod 5 is located. Therefore, when the spiral discharging rod 5 carries the material for continuous spiral transportation, the material itself can obtain the insulation effect, and will not lose a lot of heat energy during the discharging process, thereby making the material maintain good fluidity during the discharging process.

[0051] In addition, when the spiral discharging rod 5 is discharging in a spiral manner, the auxiliary discharging rod 14 is synchronously rotated in a spiral manner. When the auxiliary discharging rod 14 continues to rotate, the cavity wall of the ventilation cavity 13 changes in a wave-like manner with the rotation of the auxiliary discharging rod 14. Therefore, with the mutual cooperation of the cavity wall of the ventilation cavity 13 and the spiral discharging rod 5, the material inside the discharge trough is completely squeezed out and will not remain on the side wall of the ventilation cavity 13.

[0052] When the material is discharged, the stirring blade 4, the spiral discharge rod 5, the first motor 12, the second motor 16 and the heating element 20 are turned off.

Claims

1. A device for preparing microencapsulated phase-change silicone automatic temperature control material, characterized in that: include: A stirring kettle (1), a top cover (2), a transmission shaft (3), a stirring blade (4) and a spiral discharge rod (5), wherein the top of the stirring kettle (1) is movably mounted with the top cover (2), a side surface of the stirring kettle (1) is movably mounted with the transmission shaft (3), one end of the transmission shaft (3) is fixedly mounted with the stirring blade (4), a spiral discharge rod (5) is movably mounted in the middle of the bottom end of the inner cavity of the stirring kettle (1), an auxiliary discharge device located below the bottom end of the stirring blade (4) is movably mounted in the inner cavity of the stirring kettle (1), ventilation cavities (13) are provided on both sides of the inner bottom end of the stirring kettle (1), a constant temperature discharge device is movably mounted in the inner cavity of the ventilation cavity (13), a third cover (21) is fixedly mounted on the outside of one end of the spiral discharge rod (5), and an air supply pipe (22) is fixedly mounted on the top of one end of the constant temperature discharge device.

2. The device for preparing microencapsulated phase-change silicone automatic temperature control material according to claim 1, characterized in that: The auxiliary unloading device comprises a rotating rod (6), a digging plate (7), a first conductive sheet (8), an electromagnet (9), a pushing plate (10), a second conductive sheet (11) and a first motor (12); the rotating rod (6) is movably mounted in the inner cavity of the stirring kettle (1); the digging plates (7) are fixedly mounted on both sides of the rotating rod (6); the first conductive sheet (8) is fixedly mounted on one end side surface of the digging plate (7); the electromagnet (9) is fixedly mounted on both sides of the outer surface of the rotating rod (6); a pushing plate (10) located on one side surface of the digging plate (7) is movably mounted on the outside of one side of the electromagnet (9); and the second conductive sheet (11) is provided in the inner cavity of the rotating rod (6).

3. The device for preparing microencapsulated phase-change silicone automatic temperature control material according to claim 2, characterized in that: The constant temperature discharging device comprises an auxiliary discharging rod (14), a connecting transmission rod (15), a second motor (16), a suction impeller (17), a first cover shell (18), a second cover shell (19) and a heating element (20), wherein the auxiliary discharging rod (14) is movably mounted in the inner cavity of the ventilation cavity (13), one end of the auxiliary discharging rod (14) is fixedly mounted with the connecting transmission rod (15), one end of the connecting transmission rod (15) is fixedly mounted with the second motor (16), one end of the second motor (16) is fixedly mounted with the suction impeller (17), the outside of the suction impeller (17) is fixedly mounted with the first cover shell (18), the other end of the auxiliary discharging rod (14) is fixedly mounted with the second cover shell (19), and a heating element (20) is provided in the middle inner cavity of the auxiliary discharging rod (14).

4. The device for preparing microencapsulated phase-change silicone automatic temperature control material according to claim 3, characterized in that: The rotating rod (6) is cylindrical in shape, and the interior of the rotating rod (6) is hollow. A hole is provided on the outer surface of one end of the rotating rod (6). The digging plate (7) is semi-arc-shaped and has thermal conductivity. There are two digging plates (7), and the two digging plates (7) are oriented in opposite directions. The first conductive sheet (8) is conductive. The pushing plate (10) is magnetic, and the magnetism of the pushing plate (10) and the magnetism displayed by the electromagnet (9) after power is applied are repelled. The pushing plate (10) and the digging plate (7) are slidably connected, and a reset spring is provided at the connection between the pushing plate (10) and the digging plate (7). The second conductive sheet (11) is semi-cylindrical and conductive.

5. The device for preparing microencapsulated phase-change silicone automatic temperature control material according to claim 4, characterized in that: There are two auxiliary discharge rods (14), and the auxiliary discharge rods (14) are screw-shaped. One side wall of the ventilation cavity (13) is elastic. The diameter of the auxiliary discharge rod (14) is larger than the cavity width of the ventilation cavity (13). The auxiliary discharge rod (14) is thermally conductive.

6. The device for preparing microencapsulated phase-change silicone automatic temperature control material according to claim 5, characterized in that: The two ends of the bottom of the air supply pipe (22) are respectively connected to the top of the second cover shell (19), and the top end of the air supply pipe (22) is slidably connected to one end of the rotating rod (6), and the pipe opening of the air supply pipe (22) is opposite to the opening of the rotating rod (6).

7. The preparation process of a microencapsulated phase-change silicone automatic temperature control material preparation device according to claim 1, characterized in that: The following steps are involved: S1, preparing polysorbate and sorbitan fatty acid ester (mass ratio is 1:1) into an emulsifier; S2, then mixing the emulsifier with n-tetradecane to obtain an oil phase; S3, mixing water and polyvinyl alcohol to obtain an aqueous phase; S4, then the oil phase and the water phase are dispersed and homogenized at a speed of 500 r / min at 25° C. for 30 minutes, mixed and emulsified to obtain an emulsion; S5, then the emulsion and sodium chloride are mixed at a speed of 500 r / min at 25 ° C for 60 minutes, and then the mixture is stirred and mixed with acetic acid and ethyl orthosilicate in a vacuum kneader to prepare a microencapsulated phase change silicone automatic temperature control material. When stirring in the vacuum kneader, the processing temperature is 55 ° C, the stirring speed is 300 r / min, and the stirring is carried out for 3 hours; S6. After the stirring is completed, water is added, filtered, and then dried to complete the preparation of the microencapsulated phase change silicone automatic temperature control material.

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