Efficient emulsifying and dispersing device for DINCH plasticizer production

Abstract

The invention discloses an efficient emulsifying and dispersing device for DINCH plasticizer production, which comprises a base, the top of the base is fixedly provided with a plurality of supporting legs, the tops of the plurality of supporting legs are fixedly connected with a tank body, the bottom of the tank body is fixedly connected with a low-frequency transducer, the interior of the tank body is fixedly connected with an annular plate body, and the annular plate body is fixedly connected with the bottom of the tank body. A plurality of high-frequency transducers are fixedly connected to the annular plate body and are uniformly arranged in the circumferential direction of the annular plate body, and double-helix guide plate assemblies used for guiding composite flow and enhancing the dispersion effect are fixedly arranged in the tank body in an up-down distribution mode. Through the design of double-frequency ultrasonic collaboration, the double-spiral flow guide plate, the turnover cavity and the like, the dispersion efficiency and the cleaning efficiency are remarkably improved, the dispersion device is flexibly adaptive to multiple scenes, the dispersion device has the advantages of high efficiency, energy conservation, easiness in maintenance and the like, and the product quality and the production benefits are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of material dispersion, and in particular to a high-efficiency emulsifying and dispersing device for the production of DINCH plasticizer. Background Art

[0002] In the fields of modern industrial production and scientific research, the dispersion and cleaning of materials are key links to ensure product quality and process efficiency. They are widely used in industries such as chemical engineering, material preparation, food and medicine. The existing dispersion devices have the following deficiencies: 1. Traditional single-frequency ultrasonic dispersion equipment mainly relies on the action of ultrasonic waves with a single frequency. Its cavitation effect and mechanical effect are limited. When dealing with high-viscosity materials and large particle aggregates, there are problems of low dispersion efficiency and poor uniformity, making it difficult to meet the requirements of fine production. Some existing technologies strengthen the effect by increasing the number of ultrasonic transducers or introducing mechanical stirring devices, but this leads to a complex equipment structure, a significant increase in energy consumption, an increase in equipment failure rate, and a substantial rise in maintenance costs; 2. To improve the cleaning effect after dispersion, most equipment adopts a fixed cavity structure. During cleaning, the gravity assistance cannot be fully utilized, resulting in low cleaning efficiency and difficulty in completely removing residual materials; 3. The connection method between the spray system and the cavity is single, and problems such as loosening and leakage are likely to occur during the movement of the cavity, making it unable to adapt to the requirements of dynamic working conditions. Summary of the Invention

[0003] The purpose of the present invention is to solve the deficiencies existing in the prior art, and to propose a high-efficiency emulsifying and dispersing device for the production of DINCH plasticizer.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions: A high-efficiency emulsifying and dispersing device for the production of DINCH plasticizer, including a base. A plurality of support legs are fixedly arranged on the top of the base. A tank body is fixedly connected to the tops of the plurality of support legs. A low-frequency transducer is fixedly connected to the bottom of the tank body. An annular plate body is fixedly connected inside the tank body. High-frequency transducers are fixedly connected to the annular plate body. The number of high-frequency transducers is multiple and they are evenly arranged along the circumferential direction of the annular plate body. A double-helix guide plate assembly for guiding composite flow and enhancing the dispersion effect is fixedly arranged inside the tank body in a vertical distribution. An angle adjustment mechanism for adjusting the tilt angle of the tank body is fixedly arranged on the top of the base. A pulse cleaning mechanism for cleaning the inside of the tank body is fixedly arranged on the angle adjustment mechanism.

[0005] Preferably, the high-frequency transducer includes a plurality of independent piezoelectric ceramic sheets. The independent piezoelectric ceramic sheets are connected to the drive circuit of the high-frequency transducer for realizing sub-region drive and frequency fine-tuning. A temperature sensor is also arranged on the high-frequency transducer.

[0006] Preferably, the double - helix flow - guiding plate assembly includes an inner - layer helix plate and an outer - layer helix plate. The inner - layer helix plate and the outer - layer helix plate are spirally distributed in opposite directions. The outer - layer helix plate is fixedly connected to the inner wall of the tank body, and the inner - layer helix plate is fixedly connected to the high - frequency transducer. The double - helix flow - guiding plate is used to guide the liquid to form an axial and circumferential composite flow in the cylindrical cavity.

[0007] Preferably, the angle - adjusting mechanism includes a vertical rod, a positioning frame, a motor, an electric push rod, a positioning block, and a fixing block. A plurality of vertical rods are provided and fixed between the bottom of the positioning frame and the top of the base. A first gear is rotatably provided on the inner wall of the positioning frame through a bearing. The side wall of the first gear is meshed with a second gear, and the second gear is rotatably connected to the inside of the positioning frame through a bearing. The motor is fixedly connected to the top of the positioning frame and its output end is fixedly connected to the second gear. The first gear is fixedly connected to the positioning block, and a sliding groove for the positioning block to slide is formed on the positioning frame. Two positioning blocks are provided and symmetrically arranged. One side of the outer wall of the positioning block is fixedly connected to the electric push rod through a universal shaft, and the output end of the electric push rod is fixedly connected to the fixing block through a universal shaft, and the fixing block is fixedly connected to the outer wall of the tank body.

[0008] Preferably, the pulse cleaning mechanism includes a top plate, a connecting rod, a moving plate, a telescopic rod, and a spray head. A plurality of connecting rods are provided and fixed between the bottom of the top plate and the top of the positioning frame. A sliding groove for the moving plate to slide is formed at the bottom of the top plate. A plurality of telescopic rods are provided and evenly arranged along the circumferential direction of the top of the tank body. The upper and lower ends of the telescopic rod are respectively rotatably connected to the bottom of the moving plate and the top of the tank body through universal shafts. The spray head is fixedly connected to the bottom of the moving plate.

[0009] Preferably, the pulse cleaning mechanism further includes a deionized water supply pipeline connected to the spray port.

[0010] The present invention has the following beneficial effects: 1. By adopting the cooperative working mode of the low - frequency transducer and the high - frequency transducer, the strong cavitation effect of the low - frequency ultrasound can effectively break large - particle aggregates, and the acoustic streaming effect of the high - frequency ultrasound can refine the particles to the sub - micron level. Combined with the composite turbulent flow field guided by the detachable double - helix flow - guiding plate, the material is simultaneously subjected to macroscopic impact and microscopic shear effects in three - dimensional space, enhancing particle collision and shear, and further improving the dispersion uniformity.

[0011] 2. The innovative combination of the rotatable tank body of this device and the pulse cleaning system. The tank body is tilted at a certain angle by an electric push rod, and in combination with high-frequency pulsed ultrasound and deionized water flushing, by the dual actions of gravity and intermittent cavitation impact, the stubborn residues adhering to dead corners such as the cavity wall surface and the gaps of the flow guide plates can be effectively peeled off. Compared with the traditional cleaning method, the cleaning efficiency is improved and the residue amount is reduced.

[0012] 3. This device automatically switches the working mode to achieve the precise and efficient operation of the device, adapts to the processing requirements of different materials, and reduces energy consumption and labor costs. Brief Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the overall device proposed by the present invention; Figure 2 It is a schematic bottom view structural diagram of the overall device proposed by the present invention; Figure 3 It is a schematic top sectional structural diagram of the device proposed by the present invention; Figure 4 It is a schematic internal sectional structural diagram of the tank body proposed by the present invention; Figure 5 It is a schematic enlarged structural diagram of the high-frequency transducer and the double-helix flow guide plate assembly proposed by the present invention.

[0014] In the figure: 1. Base; 2. Tank body; 3. Low-frequency transducer; 4. High-frequency transducer; 5. Temperature sensor; 6. Double-helix flow guide plate assembly; 61. Inner spiral plate; 62. Outer spiral plate; 7. Angle adjustment mechanism; 71. Vertical rod; 72. Positioning frame; 73. Motor; 74. Electric push rod; 75. Positioning block; 76. Fixed block; 8. Pulse cleaning mechanism; 81. Top plate; 82. Connecting rod; 83. Moving plate; 84. Telescopic rod; 85. Spraying head; 9. Annular plate body. Detailed Embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0016] Embodiment 1: Refer to Figure 1 - Figure 5 , which includes a base 1. A plurality of support legs are fixedly provided at the top of the base 1. A tank body 2 is fixedly connected to the top of the plurality of support legs. A low-frequency transducer 3 is fixedly connected to the bottom of the tank body 2. An annular plate body 9 is fixedly connected inside the tank body 2. A high-frequency transducer 4 is fixedly connected to the annular plate body 9, and the number of high-frequency transducers 4 is multiple and evenly arranged along the circumferential direction of the annular plate body 9. A double-helix flow guide plate assembly 6 for guiding the composite flow and enhancing the dispersion effect is fixedly provided inside the tank body 2 in an up-and-down distribution.

[0017] The high-frequency transducer 4 includes a plurality of independent piezoelectric ceramic sheets, which are connected to the driving circuit of the high-frequency transducer 4 to achieve regional driving and frequency fine-tuning. A temperature sensor 5 is also provided on the high-frequency transducer 4 .

[0018] The double-helix guide plate assembly 6 includes an inner spiral plate 61 and an outer spiral plate 62. The inner spiral plate 61 and the outer spiral plate 62 are distributed in opposite spirals. The outer spiral plate 62 is fixedly connected to the inner wall of the tank body 2, and the inner spiral plate 61 is fixedly connected to the high-frequency transducer 4. The double-helix guide plate is used to guide the liquid to form an axial and circumferential composite flow in the cylindrical cavity.

[0019] In this embodiment, low-frequency ultrasound induces a strong cavitation effect in the liquid, generating cavitation bubbles with larger diameters. These cavitation bubbles release shock waves and microjets at the moment of collapse, which can effectively break up large particle agglomerates and simultaneously destroy the intermolecular forces of the material, reducing the viscosity of the system and creating conditions for subsequent dispersion. The low-frequency transducer 3 is arranged at the bottom of the cavity, transmitting energy from bottom to top, forming an axial cavitation field. High-frequency ultrasound, with its short wavelength, stimulates an acoustic streaming effect in the liquid, generating numerous micro-acoustic vortices. These micro-vortices create localized high shear forces on the particle surfaces, reducing them to submicron size (for example, from 10μm to less than 1μm) and promoting molecular mixing between materials such as plasticizers and polymers. High-frequency transducers (4) are embedded in the cavity wall in a circular array, generating a radial ultrasonic field that superimposes with the low-frequency axial field to form a three-dimensional interaction space.

[0020] The device also includes a control system, which is prior art and will not be described in detail here. The control system is connected to the low-frequency transducer 3, the high-frequency transducer 4, the tank 2, the pulse cleaning mechanism 8, and the laser particle size analyzer. The laser particle size analyzer monitors the material particle size and feeds the data back to the control system. Based on the data provided by the laser particle size analyzer, the control system automatically switches between low-frequency and high-frequency coordinated mode and single-frequency mode. The control system switches operating modes according to process requirements. During the initial dispersion stage, the low-frequency mode is prioritized for crushing large particles. After entering the stable stage, the dual-frequency coordinated mode is switched to. The low-frequency mode continuously provides cavitation impact, while the high-frequency mode refines the particles. The two work together in time and space, improving dispersion efficiency compared to a single-frequency mode.

[0021] The inner spiral plate 61 (clockwise) and the outer spiral plate 62 (counterclockwise) of the device are wound in opposite directions to form a nested spiral channel. The outer spiral plate 62 is fixed to the inner wall of the cavity to guide the material to move in a counterclockwise spiral upward motion; the inner spiral plate 61 makes the material spiral downward clockwise, and the inner spiral plate 61 can also be driven by a motor 73 to rotate. This design generates an axial and circumferential combined flow. The synthesized double-spiral counter-flow eddy shows a velocity difference axially and generates a centrifugal force field radially, significantly enhancing the fluid turbulence intensity. The macroscopic eddy generated by the double-spiral guide plate transports the material to the ultrasonic cavitation dense area (such as the surface of the transducer). At the same time, the micro-acoustic flow of the high-frequency ultrasonic and the mechanical flow of the guide plate form a cross-scale mixing. The mechanical flow provides the macroscopic conveying power, and the acoustic flow micro-whirlpool generates microscopic shear on the particle surface. The two cooperate to make the particles repeatedly receive ultrasonic action during the flow process, improving the dispersion uniformity. In addition, the centrifugal force of the spiral flow field prompts the cavitation bubbles to gather towards the cavity wall surface, forming a cavitation enhancement area, further strengthening the particle crushing effect. Example Two:

[0022] Refer to Figure 1 - Figure 5 , which is different from Example One in that: an angle adjustment mechanism 7 for adjusting the tilt angle of the tank body 2 is fixedly provided at the top of the base 1, and a pulse cleaning mechanism 8 for cleaning the inside of the tank body 2 is fixedly provided on the angle adjustment mechanism 7.

[0023] The angle adjustment mechanism 7 includes a vertical rod 71, a positioning frame 72, a motor 73, an electric push rod 74, a positioning block 75, and a fixing block 76. A plurality of vertical rods 71 are provided and fixed between the bottom of the positioning frame 72 and the top of the base 1. A first gear is rotatably provided on the inner wall of the positioning frame 72 through a bearing. The side wall of the first gear is meshed and connected with a second gear, and the second gear is rotatably connected to the inside of the positioning frame 72 through a bearing. The motor 73 is fixedly connected to the top of the positioning frame 72 and the output end is fixedly connected to the second gear. The first gear is fixedly connected to the positioning block 75, and a sliding groove for the positioning block 75 to slide is provided on the positioning frame 72. Two positioning blocks 75 are provided and symmetrically arranged. One side of the outer wall of the positioning block 75 is fixedly connected to the electric push rod 74 through a universal shaft, and the output end of the electric push rod 74 is fixedly connected to the fixing block 76 through a universal shaft, and the fixing block 76 is fixedly connected to the outer wall of the tank body 2.

[0024] The pulse cleaning mechanism 8 includes a top plate 81, a connecting rod 82, a moving plate 83, a telescopic rod 84, and a spray head 85. A plurality of connecting rods 82 are provided and fixed between the bottom of the top plate 81 and the top of the positioning frame 72. A sliding groove for the moving plate 83 to slide is provided at the bottom of the top plate 81. A plurality of telescopic rods 84 are provided and evenly arranged along the circumferential direction of the top of the tank body 2. The upper and lower ends of the telescopic rod 84 are respectively rotatably connected to the bottom of the moving plate 83 and the top of the tank body 2 through universal shafts. The spray head 85 is fixedly connected to the bottom of the moving plate 83.

[0025] The pulse cleaning mechanism 8 further includes a deionized water supply pipeline connected to the spray nozzle.

[0026] In this embodiment: After the dispersion is completed, the two electric push rods 74 can be started to extend and retract respectively, driving the tank body 2 to tilt 45°. The bottom part of the tank body 2 is supported by a pullable material, supporting a slight angle of tilt. The pulling force of the return spring in the telescopic rod 84 should be greater than the pulling force when the tank body 2 moves. Thus, when the tank body 2 tilts, it will drive the moving plate 83 to move integrally on the top plate 81, so that the spray head 85 is always inside the tank body 2. The moved tank body 2 is in an inclined state, while the spray head 85 is in a vertical state. The spray head 85 sprays vertically downward. After the water flow vertically impacts the inclined wall surface of the tank body 2, it diffuses along the inclined surface to form a thin layer of scouring flow. The gravity makes the water flow closely adhere to the wall surface, enhancing the coverage of complex structures such as corners and gaps, especially suitable for cleaning easily deposited parts such as the root of the spiral guide plate and the arc area at the bottom of the tank body 2. When the motor 73 drives the tank body 2 to rotate at multiple angles, the spray head 85 can better clean multiple dead corners.

[0027] In the horizontal tank body 2, the vertical spray water flow is prone to splash on the plane, and the scouring force is dispersed; while in the inclined tank body 2, the water flow slides along the inclined surface at an accelerated speed, and the impact force is concentrated in the direction of material deposition, improving the cleaning efficiency. At this time, a material deposition slope is formed at the bottom of the tank body 2. The deionized water flows out from the spray nozzle for scouring, and the gravity component is used to accelerate the residual material to move towards the discharge port. Compared with the horizontal cavity, the liquid flow path is shortened, and the scouring efficiency is significantly improved. The design of the inclined tank body 2 and the vertical spray head 85 essentially solves the problems of many cleaning blind spots, large energy consumption, and difficult cleaning of complex structures in the traditional horizontal tank body 2 through the coordinated regulation of the gravity field and the flow field. This combination not only improves the cleaning efficiency and thoroughness, but also further strengthens the applicability of the equipment in high hygiene standard and high viscosity material processing scenarios by simplifying the structure and reducing energy consumption.

[0028] During the cleaning stage, high-frequency pulsed ultrasound is started. In the pulsed mode, the cavitation bubbles experience a periodic process of "growth - collapse - regrowth", generating a stronger secondary cavitation effect than continuous ultrasound, and the impact intensity is increased. During the pulse intermittent period, the fluid continues to scour the wall surface due to inertia, carrying the peeled-off particles out, avoiding the re-deposition of suspended particles.

[0029] The laser particle size analyzer continuously measures key parameters such as the particle size and span of the material online. When the system determines that the dispersion is uneven, it automatically starts the dual-frequency collaborative mode. When the system determines that the dispersion is uniform, it switches to the single high-frequency mode, and the guide plate runs at a low speed to maintain the dispersion effect.

[0030] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention according to the technical solution of the present invention and its inventive concept for equivalent replacement or change.

Claims

1. An efficient emulsifying and dispersing device for the production of DINCH plasticizer, comprising a base (1), characterized in that: A plurality of support legs are fixedly arranged on the top of the base (1), the top of the plurality of support legs is fixedly connected with a tank body (2), the bottom of the tank body (2) is fixedly connected with a low-frequency transducer (3), an annular plate body (9) is fixedly connected inside the tank body (2), a high-frequency transducer (4) is fixedly connected to the annular plate body (9), and the number of the high-frequency transducers (4) is multiple and they are uniformly arranged along the circumferential direction of the annular plate body (9). A double-helix guide plate assembly (6) for guiding composite flow and enhancing the dispersion effect is fixedly arranged inside the tank body (2) in a vertical distribution. An angle adjustment mechanism (7) for adjusting the tilt angle of the tank body (2) is fixedly arranged on the top of the base (1), and a pulse cleaning mechanism (8) for cleaning the inside of the tank body (2) is fixedly arranged on the angle adjustment mechanism (7).

2. The high-efficiency emulsifying and dispersing device for producing DINCH plasticizer according to claim 1, characterized in that: The high-frequency transducer (4) includes a plurality of independent piezoelectric ceramic chips, and the independent piezoelectric ceramic chips are connected to the drive circuit of the high-frequency transducer (4) for realizing sub-region drive and frequency fine-tuning; a temperature sensor (5) is also arranged on the high-frequency transducer (4).

3. The high-efficiency emulsifying and dispersing device for producing DINCH plasticizer according to claim 1, wherein: The double-helix guide plate assembly (6) includes an inner-layer spiral plate (61) and an outer-layer spiral plate (62). The inner-layer spiral plate (61) and the outer-layer spiral plate (62) are distributed in reverse spirals. The outer-layer spiral plate (62) is fixedly connected to the inner wall of the tank body (2), and the inner-layer spiral plate (61) is fixedly connected to the high-frequency transducer (4); the double-helix guide plate is used for guiding the liquid to form an axial and circumferential composite flow in the cylindrical cavity.

4. An efficient emulsifying and dispersing device for the production of DINCH plasticizer according to claim 1, characterized in that: The angle adjustment mechanism (7) includes a vertical rod (71), a positioning frame (72), a motor (73), an electric push rod (74), a positioning block (75) and a fixing block (76). The number of the vertical rods (71) is multiple and they are fixed between the bottom of the positioning frame (72) and the top of the base (1). A first gear is rotatably arranged on the inner wall of the positioning frame (72) through a bearing. The side wall of the first gear is meshed with a second gear, and the second gear is rotatably connected to the inside of the positioning frame (72) through a bearing. The motor (73) is fixedly connected to the top of the positioning frame (72) and the output end is fixedly connected to the second gear. The first gear is fixedly connected to the positioning block (75), and a sliding groove for the positioning block (75) to slide is formed on the positioning frame (72). The number of the positioning blocks (75) is two and they are symmetrically arranged. One side of the outer wall of the positioning block (75) is fixedly connected to the electric push rod (74) through a universal shaft, and the output end of the electric push rod (74) is fixedly connected to the fixing block (76) through a universal shaft, and the fixing block (76) is fixedly connected to the outer wall of the tank body (2).

5. The high-efficiency emulsifying and dispersing device for producing DINCH plasticizer according to claim 4, wherein: The pulse cleaning mechanism (8) includes a top plate (81), a connecting rod (82), a moving plate (83), a telescopic rod (84) and a spray head (85). A plurality of connecting rods (82) are provided and fixed between the bottom of the top plate (81) and the top of the positioning frame (72). A sliding groove for the sliding of the moving plate (83) is formed at the bottom of the top plate (81). A plurality of telescopic rods (84) are provided and uniformly arranged along the circumferential direction of the top of the tank body (2). The upper and lower ends of the telescopic rod (84) are respectively rotatably connected to the bottom of the moving plate (83) and the top of the tank body (2) through universal shafts. The spray head (85) is fixedly connected to the bottom of the moving plate (83).

6. The high-efficiency emulsifying and dispersing device for producing DINCH plasticizer according to claim 5, wherein: The pulse cleaning mechanism (8) further includes a deionized water supply pipeline connected to the spray port.

Images