Silicon dioxide particle hydrophilicity modification device and modification method thereof

Abstract

The invention relates to the technical field of silicon dioxide modification, in particular to a silicon dioxide particle hydrophilicity modification device and a modification method thereof.The silicon dioxide particle hydrophilicity modification device comprises a base, a rotating drum, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, the stirring device is arranged in the modification barrel; according to the invention, through the arrangement of the balanced scattering assembly, when the balanced scattering assembly moves to a preset position, the constraint on the modifier is released, and the modifier is allowed to be accurately released at a specified point while the balanced scattering assembly rotates, so that the modification effect of the modifier is improved, and the service life of the modifier is prolonged. Due to the fact that the two sets of balanced scattering assemblies can synchronously ascend and descend along with the lifting assembly, the modifying agent can be evenly scattered on the modifying barrel at different heights, and the problem that the modifying agent is not evenly distributed in the barrel can be effectively solved.

Description

Technical Field

[0001] The invention relates to the field of silicon dioxide modification, and in particular to a device for modifying the hydrophilicity of silicon dioxide particles and a modification method thereof. Background Art

[0002] Silica is light in weight, has good chemical stability, is resistant to high temperatures, is non-flammable, has strong hydrophilicity and electrical insulation properties. It is widely used in chemical and light industries, such as rubber, plastics, papermaking, coatings, inks and toothpaste.

[0003] In the prior art, due to the presence of active hydroxyl groups on its surface, it is easy to form a stable colloid in water, but it may agglomerate in an organic medium. Therefore, in the process of using silica, it is necessary to modify the silica to weaken or eliminate this hydrophilicity, so that the silica can be more easily dispersed in the organic medium, and improve its dispersibility and uniformity in composite materials, coatings, plastics, rubbers, etc. However, in the process of modifying silica, it is difficult for the modifier to be evenly distributed on the surface of all silica particles, which leads to inconsistent particle performance and affects its performance in composite materials, coatings and active catalysts. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a hydrophilic modification device and a modification method for silicon dioxide particles.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a hydrophilic modification device for silica particles, comprising a base, a controller is fixedly installed on the top of the base, a modification barrel is fixedly installed on the top of the base, a sealing cover is provided on the top of the modification barrel, and further comprising: A rotating drum is arranged inside the modifying barrel; A driving member, disposed on the base, for driving the drum to rotate; Two sets of balanced scattering components are both arranged on the outer wall of the rotating drum and are used to evenly scatter the modifier; The lifting assembly is arranged inside the rotating drum and is used to push the balanced scattering assembly to move up and down.

[0006] Preferably: the balanced scattering component comprises: A collar, vertically slidably connected to the outer wall of the drum; A support column fixedly connected to the outer wall of the collar; A storage cylinder is fixedly connected to an end of the support away from the collar, and a plurality of injection holes are formed in a linear array on the outer wall of the storage cylinder; The covering and flipping assembly is arranged on the outer wall of the storage cylinder and is used for covering the spraying hole.

[0007] Preferably: the concealing and flipping assembly comprises: A rotating disk, the rotating disk is rotatably connected to one end of the storage tube close to the collar; A first torsion spring is fixedly connected between the rotating disk and the collar, and the first torsion spring is sleeved on the outer wall of the support; A cover plate, fixedly mounted on the side wall of the rotating disk; A gear, rotatably connected to the end of the storage cylinder, and the gear is fixedly connected to the end of the cover plate; A plurality of racks are fixedly connected to the inside of the drum in a circumferential array, and a connecting column is fixedly connected between each two adjacent racks; A first electric push rod, wherein a fixed portion of the first electric push rod is fixedly connected to the bottom of the sealing cover, and a telescopic end of the first electric push rod is fixedly connected to one of the racks; The push flow plate is fixedly connected to the outer wall of the storage tube, and the push flow plate is provided with flow holes.

[0008] Preferably, it also includes: A first baffle, fixedly connected to the inner wall of the storage cylinder; A second baffle, fixedly connected to the side wall of the gear; Wherein, a plurality of guide holes are formed on the first baffle plate and the second baffle plate.

[0009] Preferably, it also includes: A detection unit, used for obtaining local concentration information; A pressure unit, used to obtain pressure information; Two support pillars are respectively fixedly connected to the outer wall of the rotating disk; Two discs, one of which is fixedly connected to the bottom of the sealing cover, and the other is fixedly connected to the bottom of the modification barrel; A flow concentrator is disposed on one side of the two disks close to each other, and the flow concentrator comprises: A ring sleeve is vertically slidably connected to the outer wall of the rotating drum; A flow concentrator plate, wherein a rectangular groove is formed on the flow concentrator plate; Two straight rods are symmetrically fixedly connected between the ring sleeve and the rectangular groove; Two second torsion springs are respectively fixedly connected between the rectangular groove and the ring sleeve at corresponding positions, and the two second torsion springs are respectively sleeved on the outer walls of the two straight rods; The second electric push rod is slidably connected to the bottom of the sealing cover, and the telescopic end of the second electric push rod is rotatably connected to a rotating seat, and the rotating seat is fixedly connected to the flow collecting plate.

[0010] Preferably, the driving member comprises a mounting plate, the mounting plate is fixedly connected to the base, a motor is fixedly mounted on the top of the mounting plate, and an output shaft end of the motor is fixedly connected to the rotating drum.

[0011] Preferably, the lifting assembly comprises a third electric push rod, the third electric push rod is fixedly installed inside the rotating drum, and the telescopic end of the third electric push rod is fixedly connected to the sleeve ring through a support plate.

[0012] In a second aspect, the present invention provides a method for modifying a hydrophilicity modification device of silica particles, the modification method comprising the following steps: The controller receives the local excessive concentration information obtained by the detection unit; The controller generates first control information according to the local excessive concentration information; The controller sends the first control information to the second electric push rod to control the second electric push rod to start pushing out, so as to push the flow collecting plate at the corresponding position to move to the middle position of the modification barrel.

[0013] Preferably, it also includes: The controller receives the pressure information acquired by the pressure unit; The controller generates second control information according to the pressure information; The controller sends the second control information to the second electric push rod to drive the two flow-collecting plates to move away from each other through the rotating seat.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets balanced scattering components. When two groups of balanced scattering components move to a predetermined position, they will release the constraints on the modifier, allowing the modifier to be accurately released at a designated point while the balanced scattering components rotate. Since the two groups of balanced scattering components can be raised and lowered synchronously with the lifting components, they can evenly spread the modifier at different heights of the modification barrel, thereby helping to effectively avoid the problem of uneven distribution of the modifier in the barrel.

[0015] 2. The present invention arranges the first baffle and the second baffle so that during the operation of the gear, the second baffle driven by the gear rotates inside the storage. This rotational action causes the modifier in the storage tube to move toward the injection hole. In order to control the flow range of the modifier and prevent it from excessively exceeding the injection hole, the first baffle plays a key role here. It intercepts the modifier pushed by the second baffle to ensure that the modifier is effectively confined to the area formed between the first baffle and the second baffle. In this way, the power generated by the second baffle pushing the modifier can be more concentrated, which helps the modifier to flow out of the injection port more smoothly, thereby effectively avoiding the problem of insufficient release of the modifier and ensuring a stable supply and uniform distribution of the modifier.

[0016] 3. The present invention provides a flow-gathering plate and a support column. The flow-gathering plate pushes the solution to the middle of the modification barrel during movement, thereby completing the exchange of solutions at different positions, thereby helping to make the concentration inside the modification barrel tend to be consistent, ensuring the uniformity of the concentration of the solution in the modification barrel, and helping to avoid the problem of inhomogeneity that may be caused by excessive local concentration; And after meeting the support pillar at a specific position during movement, the support pillar will close the two adjacent focusing plates, so that the two focusing plates will form a large stirring device after merging, and move synchronously with the rotation of the drum, vigorously stirring the high-concentration liquid that was previously pushed by the focusing plates to gather in the middle of the modified barrel, thereby helping to accelerate its fusion with the surrounding low-concentration solutions, achieving overall balance of solution concentration, and helping to avoid the problem of uneven mixing that may be caused by local high concentrations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a flow chart of the modification method of the present invention.

[0018] Figure 2 The overall structure of the detection device of the present invention is shown in FIG. Figure 1 .

[0019] Figure 3 The overall structure of the detection device of the present invention is shown in FIG. Figure 2 .

[0020] Figure 4 The structure of the modified barrel of the present invention is schematically shown in FIG. Figure 1 .

[0021] Figure 5 The structure of the modified barrel of the present invention is schematically shown in FIG. Figure 2 .

[0022] Figure 6 The structure of the modified barrel of the present invention is schematically shown in FIG. Figure 3 .

[0023] Figure 7 This is a schematic diagram of the structure of the present invention after removing the sealing cover.

[0024] Figure 8 For the present invention Figure 7 An enlarged schematic diagram of the structure of section A is shown.

[0025] Fig. 9 It is a schematic structural diagram of the connection between the rotating drum and the ring sleeve of the present invention.

[0026] Fig.10 For the present invention Fig. 9 An enlarged schematic diagram of the structure of part B is shown.

[0027] Fig.11For the present invention Fig. 9 An enlarged schematic diagram of the C-section structure is shown.

[0028] Fig.12 It is a schematic structural diagram of the present invention along the cross section of the storage tube.

[0029] Fig.13 It is a schematic diagram of the structure of the present invention along the cross section of the drum.

[0030] In the figure: 1. base; 2. controller; 3. modified barrel; 4. sealing cover; 5. rotating drum; 6. sleeve ring; 7. pillar; 8. storage cylinder; 9. injection hole; 10. rotating disk; 11. first torsion spring; 12. covering plate; 13. gear; 14. rack; 15. connecting column; 16. first electric push rod; 17. push plate; 18. first baffle; 19. second baffle; 20. support column; 21. ring sleeve; 22. flow collecting plate; 23. rectangular groove; 24. second torsion spring; 25. straight rod; 26. second electric push rod; 27. rotating seat; 28. annular groove; 29. ​​sliding rod; 30. pressure sensor; 31. mounting plate; 32. motor; 33. third electric push rod; 34. disc. DETAILED DESCRIPTION

[0031] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0032] Application scenarios: In the prior art, due to the presence of active hydroxyl groups on its surface, it is easy to form a stable colloid in water, but it may agglomerate in an organic medium. Therefore, in the process of using silica, it is necessary to modify the silica to weaken or eliminate this hydrophilicity, so that silica can be more easily dispersed in the organic medium, and improve its dispersibility and uniformity in composite materials, coatings, plastics, rubbers, etc. However, in the process of modifying silica, it is difficult for the modifier to be evenly distributed on the surface of all silica particles, which leads to inconsistent particle performance and affects its performance in composite materials, coatings and active catalysts.

[0033] like Figures 2 to 13 The hydrophilic modification device of silicon dioxide particles shown in the figure comprises a base 1, a controller 2 is fixedly mounted on the top of the base 1, a modification barrel 3 is fixedly mounted on the top of the base 1, a sealing cover 4 is arranged on the top of the modification barrel 3, and further comprises: The rotating drum 5 is arranged inside the modifying barrel 3; A driving member, disposed on the base 1, for driving the drum 5 to rotate; Two sets of balanced scattering components are both arranged on the outer wall of the drum 5 and are used to evenly scatter the modifier; A lifting assembly is arranged inside the drum 5 and is used to push the balanced spreading assembly to move up and down; It should be understood that the silicon dioxide to be modified and the corresponding solution are placed inside the modification barrel 3, and then an appropriate amount of modifier is placed in the two sets of balanced scattering components. After the preparation is completed, the operator starts the driving member and the lifting member simultaneously, and the lifting member drives the two sets of balanced scattering components to move up and down reciprocatingly, and the driving member drives the rotating drum 5 to rotate, and the rotating drum 5 drives the two sets of balanced scattering components to rotate with the rotating drum 5 as the axis. When the two sets of balanced scattering components move to the predetermined position, they will release the constraints on the modifier, allowing the modifier to be accurately placed at the designated position while the balanced scattering components rotate. Point release, since these two groups of balanced scattering components can be raised and lowered synchronously with the lifting component, they can evenly spread the modifier at different heights of the modification barrel 3, thereby effectively avoiding the problem of uneven distribution of the modifier in the barrel, and ensuring uniform coverage of the modifier in the entire modification barrel 3. This design is conducive to enhancing the contact efficiency between silicon dioxide and the modifier, and further, it helps to prevent the modifier from being difficult to evenly distribute inside the modification barrel 3, resulting in incomplete contact between silicon dioxide and the modifier and inconsistent particle performance. When the balanced scattering component completes the fixed-point release of the modifier, its movement trajectory can also guide part of the modifier to flow forward, which helps to disperse the modifier just released, avoid excessive concentration in local areas, ensure the uniformity of modifier distribution, and effectively reduce the risk of local oversaturation. It also further promotes the uniform diffusion of the modifier in the entire modification space, which helps to ensure sufficient contact between the modifier and the particles to be treated. By coordinating the balanced scattering component with the lifting component and utilizing the movement characteristics of the component, the dynamic balanced distribution of the modifier is achieved, which not only solves the problem of local overload caused by the concentrated release of the modifier, but also promotes the uniform distribution of the modifier, thereby optimizing the particle modification effect and improving the performance uniformity and quality stability of the modified particles.

[0034] As a technical optimization solution of the present invention: the balanced scattering component includes: The collar 6 is vertically slidably connected to the outer wall of the drum 5; A support column 7 is fixedly connected to the outer wall of the collar 6; The storage tube 8 is fixedly connected to the end of the support 7 away from the collar 6, and a plurality of injection holes 9 are formed in a linear array on the outer wall of the storage tube 8; The covering and flipping assembly is arranged on the outer wall of the storage tube 8 and is used for covering the spraying hole 9.

[0035] It should be understood that the modifier is placed inside the storage cylinder 8, and the spray hole 9 is blocked by the covering flip assembly to prevent the modifier from being sprayed out from the inside of the spray hole 9 in advance. The rotating cylinder 5 will drive the ring 6 to rotate during the rotation, and the ring 6 will drive the storage cylinder 8 to rotate through the support 7, and the storage cylinder 8 will drive the covering flip assembly to rotate. When the covering flip assembly moves to a specified position, it will be separated from the spray hole 9, so that the modifier will automatically spray out from the spray hole 9. After the spraying is completed, the covering flip assembly will block the spray hole 9 again to prevent the modifier from flowing out; The lifting assembly pushes the collar 6 to move up and down along the rotating drum 5, and the collar 6 drives the covering flip assembly to move up and down, so that the storage barrel 8 moves to different positions of the modification barrel 3, thereby helping the modifier to spray to different parts through the spray hole 9, so as to help prevent the modifier from agglomerating; During the rotation of the storage barrel 8, it also acts as a stirring rod, thereby facilitating the thorough mixing of the modifier and the silicon dioxide.

[0036] It should be noted that, in this embodiment, a one-way valve is added to set the injection hole 9 to have a one-way flow.

[0037] As a technical optimization solution of the present invention: the cover flip assembly includes: A rotating disk 10, the rotating disk 10 is rotatably connected to one end of the storage tube 8 close to the collar 6; A first torsion spring 11 is fixedly connected between the rotating disk 10 and the collar 6, and the first torsion spring 11 is sleeved on the outer wall of the support 7; A cover plate 12 is fixedly mounted on the side wall of the rotating disk 10; A gear 13 is rotatably connected to the end of the storage tube 8, and the gear 13 is fixedly connected to the end of the cover plate 12; A plurality of racks 14 are fixedly connected to the inside of the drum 5 in a circumferential array, and a connecting column 15 is fixedly connected between each two adjacent racks 14; A first electric push rod 16, wherein a fixed portion of the first electric push rod 16 is fixedly connected to the bottom of the sealing cover 4, and a telescopic end of the first electric push rod 16 is fixedly connected to one of the racks 14; The flow-pushing plate 17 is fixedly connected to the outer wall of the storage tube 8 , and a flow hole is formed on the flow-pushing plate 17 .

[0038] It should be understood that the rotation of the storage barrel 8 will drive the rotating disk 10 and the gear 13 to rotate, and the rotating disk 10 and the gear 13 will drive the covering plate 12 to rotate, so that the covering plate 12 and the injection hole 9 remain stationary, and the position of the covering plate 12 relative to the injection hole 9 remains unchanged, thereby achieving effective closure of the injection hole 9. However, when the gear 13 encounters the rack 14 fixed in an appropriate position during the rotation process, the gear 13 will be driven by the rack 14 to turn, and this turning action causes the covering plate 12 to rotate around the axis of the rotating disk 10, causing the covering plate 12 to leave the injection hole 9, releasing the closed state of the injection hole 9, allowing the modifier in the storage barrel 8 to be released at a specific point, thereby helping to achieve the fixed-point release of the modifier, ensuring the accurate delivery of the modifier, and helping to improve the uniformity and controllability of the modification process; When the modifier is released through the injection hole 9, as the storage cylinder 8 continues to rotate, the push flow plate 17 also moves accordingly. It is worth noting that the push flow plate 17 is located at the rear position of the injection hole 9. Therefore, after the modifier is released, the push flow plate 17 immediately starts to act on the outflowing modifier, and pushes the modifier forward together through its movement trajectory, so that the modifier can be evenly distributed in different positions of the modification barrel 3. This mechanism is conducive to effectively avoiding excessive accumulation of the modifier at a single position, preventing the formation of a high concentration area locally, and thus significantly improving the uniformity of the distribution of the modifier in the entire treatment area; Moreover, during the rotation of the flow-pushing plate 17, the specially arranged flow holes on the flow-pushing plate 17 play a key role. When the flow-pushing plate 17 is executing its process of pushing the modifier, the flow holes allow part of the modifier to penetrate and pass through, and then part of the modifier will stay at the position left behind by the movement track of the flow-pushing plate 17. The cleverness of this design is that it prevents the modifier from being completely pushed forward by the flow-pushing plate 17, which helps to avoid the modifier from being excessively concentrated in the front area, thereby effectively promoting the uniform distribution of the modifier in the processing space through this passive auxiliary distribution mechanism; It should be noted that during the operation, the lifting assembly and the first electric push rod 16 will rise and fall synchronously, the first electric push rod 16 will drive the rack 14 to rise or fall, and the lifting assembly will drive the ring 6 to rise or fall along the rotating drum 5, so that the relative position of the rack 14 and the gear 13 remains unchanged, which helps the gear 13 to be driven to rotate by the rack 14 when passing the specified position.

[0039] As a technical optimization solution of the present invention: it also includes: The first baffle 18 is fixedly connected to the inner wall of the storage tube 8; The second baffle 19 is fixedly connected to the side wall of the gear 13; The first baffle plate 18 and the second baffle plate 19 are both provided with a plurality of guide holes.

[0040] It should be understood that in the above example, the cover plate 12 is moved away in time through the precise cooperation of the gear 13 and the rack 14, thereby opening the injection hole 9 and allowing the modifier to pass through and be released smoothly. However, considering the other materials in the modification barrel 3, these materials may cover the injection hole 9, resulting in insufficient actual release of the modifier. This may cause uneven distribution of the modifier between the layers of the modification barrel 3, thereby affecting the uniformity of the entire modification process and the quality consistency of the final product. Therefore, during the operation of the gear 13, the second baffle 19 driven by it rotates inside the storage tube 8. This rotational action causes the modifier in the storage tube 8 to move toward the injection hole 9. In order to control the flow range of the modifier and prevent it from excessively exceeding the injection hole 9, the first baffle 18 plays a key role here. It intercepts the modifier pushed by the second baffle 19 to ensure that the modifier is effectively confined to the area formed between the first baffle 18 and the second baffle 19. In this way, the power generated by the second baffle 19 to push the modifier can be more concentrated, which helps the modifier to flow out of the injection port more smoothly, thereby effectively avoiding the problem of insufficient modifier release and ensuring a stable supply and uniform distribution of the modifier.

[0041] It should be noted that by providing guide holes on the first baffle 18 and the second baffle 19 , the first baffle 18 and the second baffle 19 are prevented from intercepting the modifier, and the situation in which part of the modifier cannot be released due to interception by the first baffle 18 and the second baffle 19 is avoided.

[0042] As a technical optimization solution of the present invention: it also includes: A detection unit, used for obtaining local concentration information; A pressure unit, used to obtain pressure information; Two support pillars 20 are respectively fixedly connected to the outer wall of the rotating disk 10; Two discs 34, one of which is fixedly connected to the bottom of the sealing cover 4, and the other is fixedly connected to the bottom of the modification barrel 3; The two discs 34 are provided with a flow concentrator on one side close to each other, and the flow concentrator includes: The ring sleeve 21 is vertically slidably connected to the outer wall of the rotating drum 5; A flow collecting plate 22, on which a rectangular groove 23 is formed; Two straight rods 25 are symmetrically fixedly connected between the ring sleeve 21 and the rectangular groove 23; Two second torsion springs 24 are respectively fixedly connected between the rectangular groove 23 and the ring sleeve 21 at corresponding positions, and the two second torsion springs 24 are respectively sleeved on the outer walls of the two straight rods 25; The second electric push rod 26 is slidably connected to the bottom of the sealing cover 4 , and the telescopic end of the second electric push rod 26 is rotatably connected to a rotating seat 27 , and the rotating seat 27 is fixedly connected to the flow collecting plate 22 .

[0043] It should be understood that in the above embodiments, it is mentioned that the modifier is released by layering to ensure uniform distribution of the modifier. However, in actual situations, due to the influence of various factors, the modifier is likely to gather above or below the solution, which easily leads to a lower concentration of the solution in the middle. Therefore, during the rotation of the drum 5, the ring sleeve 21 is also driven to rotate, and the ring sleeve 21 drives the flow collecting plate 22 to rotate through the straight rod 25, so that the flow collecting plate 22 effectively stirs the solution at its position, greatly promoting the full fusion and interaction between the modifier and the silica. When it is detected that the concentration accumulation above or below is too high, the second electric push rod 26 is controlled to start, and the second electric push rod 26 will push the flow collecting plate 22 at the corresponding position to move. During the movement, the flow collecting plate 22 will push the passing solution to the middle position of the modification barrel 3, thereby completing the exchange of solutions at different positions, which is helpful to make the concentration inside the modification barrel 3 tend to be consistent, ensuring the uniformity of the solution concentration in the modification barrel 3, and helping to avoid the problem of inhomogeneity that may be caused by excessive local concentration; When the focusing plate 22 meets the support column 20 at a specific position during movement, the support column 20 will guide the focusing plate 22 to adjust its angle, so that the two adjacent focusing plates 22 can be closed, so that the two focusing plates 22 form a large stirring device after merging, and they will move synchronously with the rotation of the drum 5, and strongly stir the high-concentration liquid that was previously pushed by the focusing plate 22 to gather in the middle of the modification barrel 3, thereby helping to accelerate its fusion with the surrounding low-concentration solution, achieving overall balance of solution concentration, and helping to avoid the problem of uneven mixing that may be caused by local high concentration, creating a more ideal uniform environment for subsequent modification reactions; When the rotating disk 10 rotates along with the covering plate 12, the rotating disk 10 drives the support column 20 to rotate synchronously. When the support column 20 deflects during rotation, its built-in pressure unit will immediately capture this change and quickly feedback the pressure information. Based on this signal, the second electric push rod 26 is controlled to accurately drive the flow collecting plate 22 to make corresponding actions through the rotating seat 27, so that the two flow collecting plates 22 that were originally tightly connected are gradually separated. This separation process occurs because the support column 20 temporarily loses its supporting effect on the flow collecting plate 22 when it is deflected. Therefore, under the elastic action of the second torsion spring 24, the two flow collecting plates 22 are reset respectively, and a gap is formed therebetween for liquid circulation. The instantaneous channel formed in this process allows liquid to pass through, and intermittently drains high-concentration liquid to the track left by the flow collecting plate 22 after moving. Through this intermittent liquid flow, it is helpful to further mix liquids of different concentrations, promote the uniformity of the overall concentration of the solution, and ensure the consistency of the solution concentration in the modified barrel 3.

[0044] It should be noted that the influence of the above-mentioned factors are as follows: 1. Density difference: The density difference between the modifier and the solvent is the key factor in determining its position in the solution. If the density of the modifier is less than that of the solvent, it will float on the surface of the solution; conversely, if the density is greater than that of the solvent, it will sink to the bottom.

[0045] 2. Solubility: The solubility of the modifier in the solvent will also affect its distribution. A completely soluble modifier will be evenly distributed throughout the solution, while a poorly soluble modifier may form a precipitate or float on the surface, depending on its interaction with the solvent.

[0046] 3. Surface activity: Modifiers may form a layer on the surface of the solution if they are surface active, because they tend to reduce the surface tension of water and gather at the interface between the solution and the air.

[0047] 4. Temperature and pressure: Changes in temperature and pressure can also affect the solubility and distribution of modifiers in solution. Certain modifiers may be more soluble at certain temperatures or pressures, thus changing their location in the solution, etc.

[0048] It needs to be explained again that the detection unit can use existing measuring instruments such as infrared spectrometers to detect concentration. This is an existing mature technology and will not be disclosed in detail here.

[0049] It should be further explained that the pressure unit includes an annular groove 28, a sliding rod 29 and a pressure sensor 30. The annular groove 28 is opened on the side wall of the rotating disk 10, the pressure sensor 30 is fixedly installed inside the annular groove 28, and the sliding rod 29 is fixedly installed on the outer wall of the collar 6; In a specific implementation, the rotation of the rotating disk 10 will drive the pressure sensor 30 located inside the annular groove 28 to rotate. After the pressure sensor 30 contacts the sliding rod 29, the pressure sensor 30 will obtain pressure information.

[0050] As a technical optimization solution of the present invention: the driving member includes a mounting plate 31, the mounting plate 31 is fixedly connected to the base 1, a motor 32 is fixedly installed on the top of the mounting plate 31, and the output shaft end of the motor 32 is fixedly connected to the rotating drum 5.

[0051] It should be understood that the controller 2 controls the motor 32 to rotate, and the motor 32 drives the rotating drum 5 to rotate, thereby driving the device to operate through the rotating drum 5.

[0052] As a technical optimization solution of the present invention: the lifting assembly includes a third electric push rod 33, the third electric push rod 33 is fixedly installed inside the rotating drum 5, and the telescopic end of the third electric push rod 33 is fixedly connected to the ring 6 through a support plate.

[0053] It should be understood that the controller 2 controls the third electric push rod 33 to start working, and the third electric push rod 33 drives the sleeve ring 6 to move up and down through the support plate.

[0054] like Figure 1 A modification method of a hydrophilic modification device for silica particles is shown, and the modification method comprises the following steps: The controller 2 receives the local excessive concentration information obtained by the detection unit; The controller 2 generates first control information according to the local excessive concentration information; The controller 2 sends the first control information to the second electric push rod 26 to control the second electric push rod 26 to start pushing out, so as to push the flow collecting plate 22 at the corresponding position to move to the middle position of the reforming barrel 3.

[0055] As a technical optimization solution of the present invention: it also includes: The controller 2 receives the pressure information acquired by the pressure unit; The controller 2 generates second control information according to the pressure information; The controller 2 sends the second control information to the second electric push rod 26 to drive the two flow collecting plates 22 away from each other through the rotating seat 27.

[0056] Working principle of the present invention: Place the silica to be modified and the corresponding solution into the modification barrel 3, and then place an appropriate amount of modifier into the two sets of balanced scattering components. After the preparation is completed, the operator starts the driving member and the lifting member simultaneously. The lifting member drives the two sets of balanced scattering components to move up and down. The driving member drives the rotating drum 5 to rotate, and the rotating drum 5 drives the two sets of balanced scattering components to rotate with the rotating drum 5 as the axis. When the two sets of balanced scattering components move to the predetermined position, they will release the constraints on the modifier, allowing the modifier to be accurately released at the designated point while the balanced scattering components rotate. Since the two sets of balanced scattering components can be raised and lowered synchronously with the lifting component, they can evenly spread the modifier at different heights of the modification barrel 3, thereby effectively avoiding the problem of uneven distribution of the modifier in the barrel, and ensuring uniform coverage of the modifier in the entire modification barrel 3. This design is conducive to enhancing the contact efficiency between silicon dioxide and the modifier, and further, it helps to prevent the modifier from being difficult to evenly distribute inside the modification barrel 3, thereby causing incomplete contact between silicon dioxide and the modifier and resulting in inconsistent particle performance; When the balanced scattering component completes the fixed-point release of the modifier, its movement trajectory can also guide part of the modifier to flow forward, which helps to disperse the modifier just released, avoid excessive concentration in local areas, ensure the uniformity of modifier distribution, and effectively reduce the risk of local oversaturation. It also further promotes the uniform diffusion of the modifier in the entire modification space, which helps to ensure sufficient contact between the modifier and the particles to be treated. By coordinating the balanced scattering component with the lifting component and utilizing the movement characteristics of the component, the dynamic balanced distribution of the modifier is achieved, which not only solves the problem of local overload caused by the concentrated release of the modifier, but also promotes the uniform distribution of the modifier, thereby optimizing the particle modification effect and improving the performance uniformity and quality stability of the modified particles.

[0057] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A device for modifying the hydrophilicity of silicon dioxide particles, comprising a base (1), a controller (2) being fixedly mounted on the top of the base (1), a modification barrel (3) being fixedly mounted on the top of the base (1), and a sealing cover (4) being arranged on the top of the modification barrel (3), characterized in that: Also includes: A rotating drum (5) is arranged inside the modifying barrel (3); A driving member, disposed on the base (1), and used for driving the rotating drum (5) to rotate; Two sets of balanced scattering components are both arranged on the outer wall of the rotating drum (5) and are used to evenly scatter the modifier; A lifting assembly is arranged inside the rotating drum (5) and is used to push the balanced scattering assembly to move up and down.

2. A device for modifying the hydrophilicity of silicon dioxide particles according to claim 1, characterized in that: The balanced spreading assembly comprises: A sleeve (6) is vertically slidably connected to the outer wall of the rotating drum (5); A support (7) fixedly connected to the outer wall of the collar (6); A storage cylinder (8) is fixedly connected to an end of the support (7) away from the collar (6), and a plurality of injection holes (9) are formed in a linear array on the outer wall of the storage cylinder (8); A covering and flipping assembly is arranged on the outer wall of the storage cylinder (8) and is used to cover the spray hole (9).

3. A device for modifying the hydrophilicity of silicon dioxide particles according to claim 2, characterized in that: The concealing and flipping assembly comprises: A rotating disk (10), the rotating disk (10) being rotatably connected to one end of the storage cylinder (8) close to the collar (6); a first torsion spring (11) fixedly connected between the rotating disk (10) and the sleeve ring (6), and the first torsion spring (11) is sleeved on the outer wall of the support column (7); A cover plate (12) fixedly mounted on a side wall of the rotating disk (10); a gear (13) rotatably connected to an end of the storage cylinder (8), and the gear (13) is fixedly connected to an end of the cover plate (12); A plurality of racks (14) are fixedly connected to the inside of the rotating drum (5) in a circumferential array, and a connecting column (15) is fixedly connected between each two adjacent racks (14); a first electric push rod (16), wherein a fixed portion of the first electric push rod (16) is fixedly connected to the bottom of the sealing cover (4), and a telescopic end of the first electric push rod (16) is fixedly connected to one of the racks (14); The flow-pushing plate (17) is fixedly connected to the outer wall of the storage cylinder (8), and the flow-pushing plate (17) is provided with flow holes.

4. The hydrophilic modification device of silicon dioxide particles according to claim 3, characterized in that: Also includes: A first baffle (18) fixedly connected to the inner wall of the storage cylinder (8); A second baffle (19) fixedly connected to a side wall of the gear (13); Wherein, a plurality of guide holes are provided on the first baffle plate (18) and the second baffle plate (19).

5. A device for modifying the hydrophilicity of silicon dioxide particles according to claim 4, characterized in that: Also includes: A detection unit, used for obtaining local concentration information; A pressure unit, used to obtain pressure information; Two support pillars (20) are respectively fixedly connected to the outer wall of the rotating disk (10); Two discs (34), one of which is fixedly connected to the bottom of the sealing cover (4), and the other of which is fixedly connected to the bottom of the modification barrel (3); A flow concentrator is provided on one side of the two disks (34) close to each other, and the flow concentrator comprises: A ring sleeve (21) vertically slidably connected to the outer wall of the rotating drum (5); A flow collecting plate (22), wherein the flow collecting plate (22) is provided with a rectangular groove (23); Two straight rods (25) are symmetrically fixedly connected between the ring sleeve (21) and the rectangular groove (23); Two second torsion springs (24) are respectively fixedly connected between the rectangular groove (23) and the ring sleeve (21) at corresponding positions, and the two second torsion springs (24) are respectively sleeved on the outer walls of the two straight rods (25); The second electric push rod (26) is slidably connected to the bottom of the sealing cover (4), and the telescopic end of the second electric push rod (26) is rotatably connected to a rotating seat (27), and the rotating seat (27) is fixedly connected to the flow collecting plate (22).

6. The device for modifying the hydrophilicity of silicon dioxide particles according to claim 1, characterized in that: The driving member comprises a mounting plate (31), the mounting plate (31) being fixedly connected to the base (1), a motor (32) being fixedly mounted on the top of the mounting plate (31), and an output shaft end of the motor (32) being fixedly connected to the rotating drum (5).

7. The device for modifying the hydrophilicity of silicon dioxide particles according to claim 2, characterized in that: The lifting assembly comprises a third electric push rod (33), the third electric push rod (33) is fixedly mounted inside the rotating drum (5), and the telescopic end of the third electric push rod (33) is fixedly connected to the sleeve ring (6) via a support plate.

8. A method for modifying a hydrophilicity modification device for silicon dioxide particles, applicable to a hydrophilicity modification device for silicon dioxide particles as claimed in any one of claims 5 to 7, characterized in that: The modification method comprises the following steps: The controller (2) receives the local excessive concentration information obtained by the detection unit; The controller (2) generates first control information according to the local excessive concentration information; The controller (2) sends the first control information to the second electric push rod (26) to control the second electric push rod (26) to start pushing out, so as to push the flow collecting plate (22) at the corresponding position to move to the middle position of the modification barrel (3).

9. The method for modifying the hydrophilicity of silicon dioxide particles according to claim 8, characterized in that: Also includes: The controller (2) receives pressure information acquired by the pressure unit; The controller (2) generates second control information according to the pressure information; The controller (2) sends the second control information to the second electric push rod (26) to drive the two flow collecting plates (22) to move away from each other via the rotating seat (27).

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