Homogenizer with defoaming function

Abstract

The utility model discloses a homogenizer with defoaming function, including homogenizing jar, top is equipped with homogenizing motor, homogenizing stirring roller is coaxial with homogenizing motor and extends into homogenizing jar, defoaming subassembly, the upper portion of homogenizing stirring roller is sleeved and can float with liquid level and rise and fall, and defoaming subassembly includes multiple defoaming blades, and is fixed to the outer periphery of suspension cylinder along the radial, vacuum interface is located homogenizing jar top and is connected with external vacuum source through vacuum pipe to the vacuumization of homogenizing jar inside, wherein, defoaming subassembly rotates under the drive of homogenizing stirring roller, and relies on the shearing action of defoaming blade and vacuum negative pressure to eliminate liquid surface bubble in cooperation. The utility model discloses a defoaming subassembly, through the mechanical shearing action (defoaming blade multistage shearing, bubble cutting baffle auxiliary crushing) of defoaming blade and the synergistic effect of vacuum negative pressure, can cut and shear the liquid bubble in the inside of homogenizing jar quickly, compared with traditional static defoaming, greatly improves defoaming efficiency, and improves use effect.

Description

Technical Field

[0001] This utility model relates to a homogenizer with defoaming function. Background Technology

[0002] In the preparation of cosmetic creams, lotions, serums, and medical gels, homogenization is one of the crucial steps. A homogenizer uses a high-speed rotating agitator to shear and disperse materials into micron or even submicron particles, resulting in a fine and stable product. However, the high shear force inevitably introduces air into the system, forming numerous bubbles.

[0003] Existing homogenizing equipment generally uses a passive method of "standing still overnight" to eliminate bubbles after completing high-shear operations: leaving the material in the tank for 12–24 hours, relying on the bubbles to rise and be discharged naturally. However, the bubbles are difficult to break and the defoaming efficiency is low. Therefore, a homogenizer with defoaming function is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a homogenizer with defoaming function to solve the problem mentioned in the background art that existing homogenizers have difficulty breaking bubbles after completing high-shear operations, resulting in low defoaming efficiency.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a homogenizer with defoaming function, comprising: Homogenizing tank, with a homogenizing motor on top; A homogenizing stirring roller is coaxially connected to the homogenizing motor and extends into the homogenizing tank; The defoaming component is sleeved on the upper part of the homogenizing stirring roller and can float with the rise and fall of the liquid level. The defoaming component includes multiple sets of defoaming blades, which are fixed radially to the outer periphery of the suspension cylinder. A vacuum interface is located at the top of the homogenizing tank and connected to an external vacuum source via a vacuum tube to evacuate the inside of the homogenizing tank. The defoaming component rotates under the drive of the homogenizing stirring roller, and relies on the shearing action of the defoaming blade and the vacuum negative pressure to eliminate air bubbles on the liquid surface.

[0006] Preferably, the defoaming component further includes: The guide rod is coaxially fixed and rotates synchronously with the homogenizing mixing roller; A suspension cylinder is axially slidable but not relatively rotatable and is sleeved on the guide rod; the defoaming blade is fixed to the outer peripheral wall of the suspension cylinder. The guide rod suspends the defoaming blade at the liquid surface through the suspension cylinder, and the rotation of the defoaming blade is connected to the rotation of the homogenizing stirring roller.

[0007] Preferably, the cross-section of the guide rod is a regular polygon, and the shape of the central channel of the suspension cylinder is complementary to the cross-section of the guide rod, so as to realize torque transmission and sliding guidance.

[0008] Preferably, the top end of the guide rod is provided with a limiting boss to prevent the suspension cylinder from slipping upward; the lower end of the guide rod is provided with a retaining ring to limit the maximum downward stroke of the suspension cylinder when the liquid level drops suddenly.

[0009] Preferably, the defoaming blade is composed of two arc-shaped guide plates, with an inlet formed between the leading edges of the two guide plates and a defoaming port formed between their trailing edges. The gap between the defoaming ports is smaller than the opening of the inlet, and multiple sets of bubble-cutting baffles are spaced apart at the defoaming ports to shear and break the sucked-in bubbles.

[0010] Preferably, the leading and trailing edges of the guide plate are rounded to reduce splashing disturbance to the liquid surface.

[0011] Preferably, the vacuum interface is a downwardly expanding frustum-shaped short section, with an elastic sealing gasket of the same frustum shape fitted around its outer periphery; the upper inner diameter of the sealing gasket is smaller than the lower inner diameter, so that when the connecting sleeve at the vacuum tube end is pressed downward, the sealing gasket expands radially and forms a surface seal with the vacuum interface.

[0012] Preferably, the homogenizing stirring roller is further provided with a frame-shaped stirring rod below the defoaming component, and the diameter of the upper layer of the stirring rod is smaller than the diameter of the lower layer of the stirring rod, so as to form a gradient shear field and further reduce bubble regeneration.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a defoaming component that, through the combined action of the mechanical shearing action of the defoaming blade (multi-stage shearing by the defoaming blade and the assisted breakage by the bubble-cutting baffle) and the vacuum negative pressure, can quickly break and shear the bubbles inside the homogenizing tank. Compared with traditional static defoaming, this significantly improves defoaming efficiency and enhances the performance.

[0014] At the same time, the defoaming component operates synchronously with the homogenizing mixing roller to achieve "homogenization and defoaming simultaneously". It can continuously defoam during the homogenization process, rather than passively defoaming after the homogenization is completed, further reducing the impact of bubbles on the product.

[0015] The adjustable floating defoaming component and suspension cylinder ensure that the defoaming blade is always at the optimal shear position on the liquid surface, allowing the homogenizer to precisely control the defoaming effect according to different liquid levels and bubble contents, further optimizing the operation process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the vacuum interface structure according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the defoaming component structure according to an embodiment of the present utility model; Figure 4 This is a top view of the defoaming blade structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the defoaming blade structure according to an embodiment of the present invention.

[0017] In the diagram: 1. Homogenizing tank; 2. Homogenizing motor; 3. Homogenizing stirring roller; 4. Defoaming component; 41. Defoaming blade; 411. Guide plate; 412. Inlet; 413. Defoaming port; 414. Bubble-cutting baffle; 42. Guide rod; 43. Suspension cylinder; 44. Limiting boss; 45. Retaining ring; 5. Vacuum interface; 6. Vacuum tube; 7. Sealing gasket; 8. Stirring rod. Detailed Implementation

[0018] To address the problem of low defoaming efficiency and difficulty in breaking up bubbles after high-shear operations in existing homogenizing equipment, this invention provides a homogenizer with defoaming functionality. The technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0019] Please see Figure 1-5 This utility model provides a homogenizer with defoaming function, a homogenizing tank 1, and a homogenizing motor 2 on the top; The homogenizing stirring roller 3 is coaxially connected to the homogenizing motor 2 and extends into the homogenizing tank 1; the homogenizing stirring roller 3 is also provided with a frame-shaped stirring rod 8 below the defoaming component 4, and the diameter of the upper layer of the stirring rod 8 is smaller than the diameter of the lower layer of the stirring rod 8.

[0020] The defoaming component 4 is sleeved on the upper part of the homogenizing stirring roller 3 and can float with the rise and fall of the liquid level. The defoaming component 4 includes multiple sets of defoaming blades 41, which are fixed radially to the outer periphery of the suspension cylinder 43. Vacuum interface 5 is located at the top of the homogenizing tank 1 and connected to an external vacuum source through vacuum tube 6 to evacuate the inside of the homogenizing tank 1. Vacuum interface 5 is a downwardly expanding frustum-shaped short section, and its outer periphery is fitted with an elastic sealing gasket 7 that is also frustum-shaped. The inner diameter of the upper end of the sealing gasket 7 is smaller than the inner diameter of the lower end, so that when the connecting sleeve at the end of the vacuum tube 6 is pressed down, the sealing gasket 7 expands radially and forms a surface seal with the vacuum interface 5.

[0021] The defoaming component 4 rotates under the drive of the homogenizing stirring roller 3, and relies on the shearing action of the defoaming blade 41 and the vacuum negative pressure to eliminate bubbles on the liquid surface.

[0022] The defoaming component 4 also includes: Guide rod 42 is coaxially fixed and rotates synchronously with the homogenizing stirring roller 3; The suspension cylinder 43 is axially slidable but not relatively rotatable and is sleeved on the guide rod 42. The defoaming blade 41 is fixed to the outer peripheral wall of the suspension cylinder 43. The guide rod 42 suspends the defoaming blade 41 above the liquid surface via the suspension cylinder 43, and the rotation of the defoaming blade 41 is connected to the rotation of the homogenizing stirring roller 3. The cross-section of the guide rod 42 is a regular polygon, and the shape of the central channel of the suspension cylinder 43 is complementary to the cross-section of the guide rod 42 to achieve torque transmission and sliding guidance.

[0023] The guide rod 42 has a limiting boss 44 at its top end to prevent the suspension cylinder 43 from slipping upwards; the guide rod 42 has a retaining ring 45 at its lower end to limit the maximum downward stroke of the suspension cylinder 43 when the liquid level drops suddenly. The defoaming blade 41 is composed of two arc-shaped guide plates 411. An inlet 412 is formed between the leading edges of the two guide plates 411, and a defoaming port 413 is formed between their trailing edges. The gap between the defoaming ports 413 is smaller than the opening of the inlet 412, and multiple sets of bubble-cutting baffles 414 are spaced apart at the defoaming ports 413 to shear and break the sucked-in bubbles. The leading and trailing edges of the guide plates 411 are rounded to reduce splashing disturbance to the liquid surface.

[0024] The working principle of the homogenizer with defoaming function provided by this utility model is as follows: When in use, first start the homogenizing motor 2 to drive the homogenizing stirring roller 3 to rotate at high speed, and at the same time, the vacuum interface 5 starts to draw a vacuum to form a negative pressure environment inside the tank.

[0025] As the liquid is stirred, bubbles are generated and rise to near the surface.

[0026] At this point, the defoaming blade 41 in the defoaming component 4 cuts into the bubble surface layer. The bubbles are guided by the guide plate 411 to the inlet 412 area of ​​the defoaming blade 41. When passing through the shearing area, they are cut and broken into smaller bubbles. The bubble-cutting baffle 414 further enhances the breaking effect. At the same time, the vacuum negative pressure accelerates the escape of small bubbles, reduces the surface tension of the bubbles on the liquid surface, and allows the broken bubbles to be quickly extracted, thereby efficiently completing the defoaming process.

[0027] When the liquid level changes, the suspension cylinder 43 slides up and down along the guide rod 42 due to buoyancy. At the same time, the polygonal design of the guide rod 42 ensures that the suspension cylinder 43 rotates stably and transmits torque. To prevent the suspension cylinder 43 from slipping or getting stuck, the upper and lower ends of the guide rod 42 are provided with limiting bosses 44 and retaining rings 45.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A homogenizer with defoaming function, characterized in that, include: Homogenizing tank (1), with a homogenizing motor (2) on top; The homogenizing stirring roller (3) is coaxially connected to the homogenizing motor (2) and extends into the homogenizing tank (1); The defoaming component (4) is sleeved on the upper part of the homogenizing stirring roller (3) and can float with the rise and fall of the liquid level. The defoaming component (4) includes multiple sets of defoaming blades (41) which are fixed radially to the outer periphery of the suspension cylinder (43). The defoaming blade (41) is composed of two arc-shaped guide plates (411). An inlet (412) is formed between the front edges of the two guide plates (411) and a defoaming port (413) is formed between the tail edges. The gap of the defoaming port (413) is smaller than the opening of the inlet (412). Multiple sets of bubble-cutting baffles (414) are arranged at intervals at the defoaming port (413) to shear and break the sucked-in bubbles. A vacuum interface (5) is provided on the top of the homogenizing tank (1) and connected to an external vacuum source through a vacuum tube (6) to evacuate the inside of the homogenizing tank (1); The defoaming component (4) rotates under the drive of the homogenizing stirring roller (3) and eliminates air bubbles on the liquid surface by the shearing action of the defoaming blade (41) and the vacuum negative pressure.

2. A homogenizer with defoaming function according to claim 1, characterized in that: The defoaming component (4) also includes: The guide rod (42) is coaxially fixed and rotates synchronously with the homogenizing roller (3); The suspension cylinder (43) is axially slidable but not relatively rotatable and is sleeved on the guide rod (42). The defoaming blade (41) is fixed to the outer peripheral wall of the suspension cylinder (43). The guide rod (42) suspends the defoaming blade (41) on the liquid surface through the suspension cylinder (43), and the defoaming blade (41) rotates through the rotation of the homogenizing stirring roller (3).

3. A homogenizer with defoaming function according to claim 2, characterized in that: The cross-section of the guide rod (42) is a regular polygon, and the shape of the central channel of the suspension cylinder (43) is complementary to the cross-section of the guide rod (42) to achieve torque transmission and sliding guidance.

4. A homogenizer with defoaming function according to claim 3, characterized in that: The top of the guide rod (42) is provided with a limiting boss (44) to prevent the suspension cylinder (43) from sliding upward; the lower end of the guide rod (42) is provided with a retaining ring (45) to limit the maximum downward stroke of the suspension cylinder (43) when the liquid level drops suddenly.

5. A homogenizer with defoaming function according to claim 4, characterized in that: The leading and trailing edges of the guide plate (411) are rounded to reduce splashing disturbance to the liquid surface.

6. A homogenizer with defoaming function according to any one of claims 1-3, characterized in that: The vacuum interface (5) is a downwardly expanding frustum-shaped short section, and its outer periphery is fitted with an elastic sealing gasket (7) that is also frustum-shaped. The upper inner diameter of the sealing gasket (7) is smaller than the lower inner diameter, so that when the connecting sleeve at the end of the vacuum tube (6) is pressed down, the sealing gasket (7) expands radially and forms a surface seal with the vacuum interface (5).

7. A homogenizer with defoaming function according to any one of claims 1-3, characterized in that: The homogenizing stirring roller (3) is further provided with a frame-shaped stirring rod (8) below the defoaming component (4), and the diameter of the upper layer of the stirring rod (8) is smaller than the diameter of the lower layer of the stirring rod (8).

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