Emulsion multistage homogenization device

Abstract

This utility model discloses a multi-stage homogenizing emulsion device, belonging to the field of emulsion production equipment, which solves the problem of poor treatment effect caused by the single-stage emulsification structure of existing emulsion homogenizing equipment. This utility model includes a pretreatment tank, a primary emulsification chamber, and a secondary emulsification chamber connected sequentially from top to bottom. The pretreatment tank is equipped with a premixing mechanism, the primary emulsification chamber is equipped with a stator-rotor mechanism connected to an emulsification motor, and the secondary emulsification chamber is equipped with an ultrasonic generator. This utility model adopts a combined structure of the premixing mechanism, the stator-rotor mechanism, and the ultrasonic generator. The premixing mechanism reduces the initial viscosity, the stator-rotor mechanism performs coarse emulsification, and the ultrasonic generator further refines the particles, thereby forming a gradient treatment and achieving a multi-stage emulsification synergistic effect, ultimately achieving an emulsification efficiency improvement of over 30% and a particle size D90 ≤ 5μm.

Description

Technical Field

[0001] This utility model belongs to the field of emulsion production equipment, specifically relating to a multi-stage homogenizing emulsion device. Background Technology

[0002] Traditional emulsion homogenizing equipment typically employs high-speed shear emulsifiers and colloid mills, which suffer from the following drawbacks: the single-stage emulsification structure leads to uneven particle distribution, poor adaptability to high-viscosity emulsions requiring multiple cycles; parameters cannot be adjusted in real-time according to emulsion viscosity and temperature, resulting in high energy consumption; and equipment cleaning is difficult, with residues affecting batch stability. Therefore, a multi-stage emulsion homogenizing and emulsifying device is proposed to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a multi-stage homogenizing emulsion device to solve the problem that existing emulsion homogenizing equipment uses a single-stage emulsification structure, resulting in poor processing effect.

[0004] The technical solution of this utility model is: a multi-stage homogenizing emulsion device for emulsion, comprising a pretreatment tank, a primary emulsification chamber and a secondary emulsification chamber connected sequentially from top to bottom. The pretreatment tank is equipped with a premixing mechanism, the primary emulsification chamber is equipped with a stator-rotor mechanism connected to an emulsification motor, and the secondary emulsification chamber is equipped with an ultrasonic generator.

[0005] As a further improvement of this utility model, the premixing mechanism includes a premixing shaft and a guide vane. The guide vane is spirally connected around the periphery of the premixing shaft. The upper end of the premixing shaft extends out of the pretreatment tank and is connected to a premixing motor.

[0006] As a further improvement of this utility model, a scraping shaft is provided in the primary emulsification chamber, and multiple scraping plates are connected around the bottom of the scraping shaft. The scraping plates are L-shaped and fit against the inner wall of the primary emulsification chamber. The upper end of the scraping shaft passes through the top of the primary emulsification chamber and is connected to a scraping motor.

[0007] As a further improvement of this utility model, a plurality of downwardly inclined connecting rods are connected around the side of the scraper shaft, and the lower ends of the connecting rods are connected to the scraper plate one by one.

[0008] As a further improvement of this utility model, the pretreatment tank is connected to the primary emulsification chamber via a first pipe, and a first valve is provided on the first pipe; the primary emulsification chamber is connected to the secondary emulsification chamber via a second pipe, and a second valve is provided on the second pipe; the first valve and the second valve are respectively connected to the controller.

[0009] As a further improvement of this utility model, a viscosity sensor is provided in the primary emulsification chamber, and the viscosity sensor, emulsification motor and ultrasonic generator are respectively connected to the controller.

[0010] As a further improvement of this utility model, a guide plate is provided on the inner top wall of the primary emulsification chamber, and the guide plate is located near the lower end of the first pipe.

[0011] As a further improvement of this utility model, the pretreatment tank is provided with a feed inlet; the bottom of the secondary emulsification chamber is provided with a discharge pipe, and the discharge pipe is provided with a discharge valve, which is connected to the controller.

[0012] As a further improvement of this utility model, high-pressure nozzles are respectively provided on the pretreatment tank, the primary emulsification chamber and the secondary emulsification chamber.

[0013] As a further improvement of this utility model, the inner walls of the pretreatment tank, the primary emulsification chamber and the secondary emulsification chamber are coated with a nano-hydrophobic coating.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model adopts a structure combining a premixing mechanism, a stator-rotor mechanism, and an ultrasonic generator. The premixing mechanism reduces the initial viscosity, the stator-rotor mechanism performs coarse emulsification, and the ultrasonic generator further refines the particles, thereby forming a gradient treatment and achieving a multi-stage emulsification synergistic effect. Ultimately, the emulsification efficiency can be improved by more than 30%, and the particle size D90≤5μm.

[0016] 2. This utility model can achieve automated control. The controller controls the opening of the first and second valves, and the viscosity sensor feeds back viscosity data to the controller in real time to adjust the speed of the stator and rotor mechanism. The emulsification motor and scraping motor are turned off and the ultrasonic generator is turned on in a timely manner to obtain good emulsification performance and reduce energy consumption by 40%.

[0017] 3. This utility model is equipped with high-pressure nozzles on the pretreatment tank, the primary emulsification chamber and the secondary emulsification chamber. The cleaning solution can be sprayed through the high-pressure nozzles for cleaning and air purging, achieving efficient cleaning, reducing cleaning time by 50% and reducing residue. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] In the diagram: 1-Pretreatment tank; 11-Guide plate; 12-Premixing motor; 13-Premixing shaft; 14-Inlet; 2-Primary emulsification chamber; 21-Stator-rotor mechanism; 22-Scraper; 23-Guide plate; 24-Emulsification motor; 25-Scraper shaft; 26-Connecting rod; 27-Scraper motor; 3-Secondary emulsification chamber; 31-Ultrasonic generator; 4-Controller; 51-First pipe; 52-Second pipe; 53-First valve; 54-Second valve; 55-Discharge pipe; 56-Discharge valve; 6-High-pressure nozzle. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] Example 1

[0022] like Figure 1 As shown, a multi-stage homogenizing emulsion device includes a pretreatment tank 1, a primary emulsification chamber 2, and a secondary emulsification chamber 3 connected sequentially from top to bottom. The pretreatment tank 1 is equipped with a premixing mechanism, the primary emulsification chamber 2 is equipped with a stator-rotor mechanism 21, the stator-rotor mechanism 21 is connected to an emulsification motor 24, and the secondary emulsification chamber 3 is equipped with an ultrasonic generator 31.

[0023] The premixing mechanism includes a premixing shaft 13 and a guide vane 11. The guide vane 11 is spirally connected around the periphery of the premixing shaft 13. The guide vane 11 has an inclination angle of 15°-60°. The upper end of the premixing shaft 13 extends out of the pretreatment tank 1 and is connected to a premixing motor 12.

[0024] The primary emulsification chamber 2 is equipped with a wall scraping shaft 25. Multiple wall scraping plates 22 are connected around the bottom of the wall scraping shaft 25. The wall scraping plates 22 are L-shaped and fit against the inner wall of the primary emulsification chamber 2. The upper end of the wall scraping shaft 25 passes through the top of the primary emulsification chamber 2 and is connected to a wall scraping motor 27.

[0025] Multiple downward-sloping connecting rods 26 are connected to the side of the scraper shaft 25, with the lower ends of each connecting rod 26 corresponding to the scraper plate 22. The connecting rods 26 serve two purposes: firstly, to reinforce the connection between the scraper plate 22 and the scraper shaft 25; and secondly, to agitate the emulsion. The downward-sloping design of the connecting rods 26 prevents collisions with the stator-rotor mechanism 21.

[0026] The pretreatment tank 1 is connected to the primary emulsification chamber 2 via a first pipe 51, and a first valve 53 is provided on the first pipe 51; the primary emulsification chamber 2 is connected to the secondary emulsification chamber 3 via a second pipe 52, and a second valve 54 is provided on the second pipe 52; the first valve 53 and the second valve 54 are respectively connected to the controller 4.

[0027] A viscosity sensor is installed inside the primary emulsification chamber 2. The viscosity sensor, emulsification motor 24, and ultrasonic generator 31 are respectively connected to the controller 4.

[0028] A guide plate 23 is provided on the inner top wall of the primary emulsification chamber 2. The guide plate 23 is located near the lower end of the first pipe 51, and a distance is left between the guide plate 23 and the connecting rod. The guide plate 23 not only serves to guide the flow, but also enhances the stirring effect.

[0029] The pretreatment tank 1 is provided with a feed inlet 14; the bottom of the secondary emulsification chamber 3 is provided with a discharge pipe 55, and the discharge pipe 55 is provided with a discharge valve 56, which is connected to the controller 4.

[0030] High-pressure nozzles 6 are installed on the pretreatment tank 1, the primary emulsification chamber 2, and the secondary emulsification chamber 3. The high-pressure nozzles 6 can switch between cleaning fluid and compressed gas channels.

[0031] The inner walls of the pretreatment tank 1, the primary emulsification chamber 2, and the secondary emulsification chamber 3 are coated with a nano-hydrophobic coating.

[0032] Aqueous and oily raw materials are fed into pretreatment tank 1 through inlet 14. Premixing motor 12 is turned on, and guide vanes 11 rotate to premix the materials. After a certain period of time, controller 4 controls the opening of first valve 53, and the premixed material enters primary emulsification chamber 2 through first pipe 51. Then, controller 4 controls the start of emulsification motor 24 to a speed of 5000 rpm, and stator-rotor mechanism 24 works to perform coarse emulsification. At the same time, controller 4 controls the start of scraper motor 27, and scraper plate 22 rotates to scrape off the material adhering to the inner wall of primary emulsification chamber 2 to participate in emulsification. Connecting rod 26 can also stir the material. When the viscosity sensor detects that the viscosity has increased to 1200 mPa·s, it sends a signal to the controller 4. The controller 4 increases the speed of the emulsifying motor 24 to 12000 rpm. After sufficient emulsification, the viscosity reaches the set value, and the viscosity sensor sends a signal to the controller 4. The controller 4 then turns off the emulsifying motor 24 and opens the second valve 54. The coarsely emulsified material enters the secondary emulsification chamber 3 through the second pipe 52. At this time, the scraper motor 27 continues to work, causing the scraper plate 22 to scrape the material thoroughly. Then, the controller 4 controls the ultrasonic generator to turn on at a frequency of 28 kHz and turns off the scraper motor 27. The material is further refined into particles in the secondary emulsification chamber 3. After a certain period of time, the controller 4 controls the ultrasonic generator to turn off and opens the discharge valve 56. Finally, the emulsion is discharged from the discharge pipe 55.

[0033] After the operation is completed, the equipment is cleaned. 60°C deionized water is sprayed onto the pretreatment tank 1, the primary emulsification chamber 2 and the secondary emulsification chamber 3 through the high-pressure nozzle 6 for rinsing. The cleaned water is discharged through the discharge pipe 55 and then compressed air is blown in through the high-pressure nozzle 6 to remove residual droplets.

[0034] This invention significantly improves emulsification efficiency and product stability, and is suitable for high-precision emulsion production.

Claims

1. An emulsion multi-stage homogenization emulsification device, characterized by: It includes a pretreatment tank (1), a primary emulsification chamber (2) and a secondary emulsification chamber (3) connected from top to bottom. The pretreatment tank (1) is equipped with a premixing mechanism. The primary emulsification chamber (2) is equipped with a stator-rotor mechanism (21). The stator-rotor mechanism (21) is connected to an emulsification motor (24). The secondary emulsification chamber (3) is equipped with an ultrasonic generator (31).

2. The emulsion multi-stage homogenizing emulsifying device according to claim 1, characterized in that: The premixing mechanism includes a premixing shaft (13) and a guide vane (11). The guide vane (11) is spirally connected around the periphery of the premixing shaft (13). The upper end of the premixing shaft (13) extends out of the pretreatment tank (1) and is connected to a premixing motor (12).

3. The multi-stage homogenizing emulsification device of claim 1, wherein: The primary emulsification chamber (2) is provided with a scraping shaft (25), and multiple scraping plates (22) are connected around the bottom of the scraping shaft (25). The scraping plates (22) are L-shaped and fit against the inner wall of the primary emulsification chamber (2). The upper end of the scraping shaft (25) passes through the top of the primary emulsification chamber (2) and is connected to a scraping motor (27).

4. The multi-stage homogenizing emulsification device of claim 3, wherein: Multiple downward-sloping connecting rods (26) are connected around the side of the scraper shaft (25), and the lower ends of the connecting rods (26) are connected to the scraper plate (22) one by one.

5. An emulsion multi-stage homogenization device according to any one of claims 1-4, characterized in that: The pretreatment tank (1) is connected to the primary emulsification chamber (2) via a first pipe (51), and a first valve (53) is provided on the first pipe (51); the primary emulsification chamber (2) is connected to the secondary emulsification chamber (3) via a second pipe (52), and a second valve (54) is provided on the second pipe (52); the first valve (53) and the second valve (54) are respectively connected to the controller (4).

6. The multi-stage homogenizing emulsification device of claim 5, wherein: The primary emulsification chamber (2) is equipped with a viscosity sensor, and the viscosity sensor, emulsification motor (24) and ultrasonic generator (31) are respectively connected to the controller (4).

7. The emulsion multi-stage homogenization and emulsification device according to claim 6, characterized in that: The inner top wall of the primary emulsification chamber (2) is provided with a guide plate (23), which is located near the lower end of the first pipe (51).

8. The multi-stage homogenizing emulsification device of claim 1, wherein: The pretreatment tank (1) is provided with a feed inlet (14); the bottom of the secondary emulsification chamber (3) is provided with a discharge pipe (55), and a discharge valve (56) is provided on the discharge pipe (55), and the discharge valve (56) is connected to the controller (4).

9. The multi-stage homogenizing emulsification device of claim 8, wherein: High-pressure nozzles (6) are respectively provided on the pretreatment tank (1), the primary emulsification chamber (2) and the secondary emulsification chamber (3).

10. The multi-stage homogenizing emulsification device of claim 1, wherein: The inner walls of the pretreatment tank (1), the primary emulsification chamber (2) and the secondary emulsification chamber (3) are coated with a nano-hydrophobic coating.

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