High efficiency disc agitator for filtering impurities from dairy products

Abstract

The utility model relates to a kind of dairy product high-efficiency disc-type mixers of filtering impurity, including the stirring tank for bearing liquid, drive shaft is arranged in stirring tank interior, the end of the drive shaft is connected with stirring assembly, the top of the stirring tank is equipped with the driving mechanism of driving the rotation of the drive shaft, one side of the drive shaft is equipped with the filter assembly capable of collecting impurity;The impurity of the liquid in the stirring tank of the utility model can be accumulated on the surface of filter assembly, so that the finished product quality of emulsion after stirring is better, while improving mixing purity, improving product quality.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, specifically to a high-efficiency disc mixer for dairy products that can filter impurities. Background Technology

[0002] Disc mixers play a vital role in the dairy industry, primarily used for mixing, homogenizing, and emulsifying liquid or semi-solid dairy products. They utilize high-speed rotating disc blades to generate strong shear forces and convection, helping to thoroughly mix raw materials and improve product uniformity and stability.

[0003] In dairy processing, disc mixers are commonly used in the production of products such as milk, yogurt, cream, and cheese. For example, in yogurt making, the mixer can evenly mix the starter culture with the milk, ensuring consistent fermentation. In cream production, disc mixers promote the dispersion of fat particles, improving the smoothness of the texture. Furthermore, they can also be used for dissolving and homogenizing ingredients such as whey protein and lactose solutions.

[0004] Compared to other mixing equipment, disc mixers have lower energy consumption, are easier to maintain, and can effectively improve production efficiency and product quality, making them one of the indispensable key pieces of equipment in dairy processing.

[0005] Application announcement number CN113383825A discloses a method for preparing sterile bovine colostrum whey with natural immune activity. According to its instructions and drawings, the movable frame drives the rack to move, which in turn drives the driven gear and the transmission rod to rotate back and forth. Then, through the cooperation of two transmission gears, the power is transmitted, which causes the transmission rod to drive the sleeve to rotate. In turn, the sleeve drives the sleeve and the stirring blade to rotate through the limiting rod, thereby stirring the skim milk.

[0006] However, the solution has certain limitations: 1. If there are certain impurities inside the mixer during the mixing process, the sleeve cannot effectively handle the residual impurities in the dairy products during the rotation process, resulting in a lower quality of the finished emulsion after mixing; 2. The centrifugal force generated by the mixing blades inside the mixer is low, which is not very effective for liquid stratification and convection. Summary of the Invention

[0007] This invention addresses the problems existing in disc mixers during the mixing process by proposing a high-efficiency disc mixer for dairy products that can filter impurities. Impurities in the liquid inside the mixing tank will accumulate on the surface of the second filter screen, resulting in better quality of the finished emulsion after mixing, while improving the purity of the mixture and thus improving product quality.

[0008] The purpose of this invention is achieved through the following technical solution: a high-efficiency disc mixer for dairy products that can filter impurities, including a mixing tank for carrying liquid, a drive shaft disposed inside the mixing tank, a mixing assembly connected to the end of the drive shaft, a drive mechanism for driving the drive shaft to rotate on the top of the mixing tank, and a filter assembly for collecting impurities disposed on one side of the drive shaft.

[0009] Preferably, the top of the mixing tank is provided with a removable barrel cover, the surface of which is provided with a liquid inlet, and the bottom of the mixing tank is provided with a liquid outlet.

[0010] Preferably, the filtration assembly includes a support column, an arc-shaped support column, and a filter element. One side of the support column is connected to the side wall of the drive shaft, and the top of the support column extends toward the surface of the drive shaft with an arc-shaped support column. A filter element is provided between each arc-shaped support column and the support column. The support column and the arc-shaped support column can enhance the axial centrifugal force of the liquid inside the mixing tank during rotation.

[0011] Preferably, the filter element includes a first filter screen and a second filter screen, wherein the mesh size of the first filter screen is smaller than that of the second filter screen, and impurities in the liquid inside the mixing tank will pass through the first filter screen and get stuck on the second filter screen during the rotation of the drive shaft.

[0012] Preferably, the stirring assembly includes a sleeve and stirring blades. The surface of the drive shaft is provided with a plurality of sleeves, and the surface of each sleeve is equipped with a plurality of stirring blades. This arrangement is to force the stirring blades to stratify and convect the liquid, thereby achieving particle crushing, dispersion and uniform mixing.

[0013] Preferably, the axis of the drive shaft is not on the same axis as the axis of the mixing tank. The mixing tank, drive shaft and filter assembly are made of stainless steel. This arrangement is for easy cleaning and disinfection, and the structure is compact and the operation is stable, which is suitable for continuous production needs.

[0014] Preferably, the drive mechanism includes a motor support, a drive motor, and a coupling. The motor support is mounted on the surface of the barrel cover, and the drive motor is located above the motor support. The shaft of the drive motor passes through the top of the motor support and is connected to one end of the coupling. The other end of the coupling is connected to the top of the transmission shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Impurities in the liquid inside the mixing tank will accumulate on the surface of the second filter screen. The filtration effect of the first and second filters can effectively remove residual impurities in dairy products, resulting in better quality of the finished emulsion after mixing. Moreover, the filters can directly intercept particulate matter, reduce mechanical wear, and extend the life of the liquid outlet; at the same time, they can improve the purity of the mixture and improve product quality.

[0017] 2. The filter support column and the arc-shaped support column enhance the axial centrifugal force of the liquid inside the mixing tank during rotation. The filter support column and the arc-shaped support column can further promote the up-and-down circulation of materials, avoiding stratification. The curved surfaces of the filter support column and the arc-shaped support column can also throw the materials against the container wall, and after impact, they bounce back to form turbulence, reducing dead zones in the mixing. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the present invention;

[0021] Figure 4 This is a perspective view of the filter assembly of this utility model.

[0022] The diagram shows the following markings: 1. Mixing tank; 11. Tank cover; 12. Liquid inlet; 13. Liquid outlet; 2. Drive shaft; 3. Mixing assembly; 31. Sleeve; 32. Mixing blade; 4. Drive mechanism; 41. Motor support; 42. Drive motor; 43. Coupling; 5. Filter assembly; 51. Filter support column; 52. Arc-shaped support column; 53. Filter element; 531. First filter screen; 532. Second filter screen. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0024] like Figure 1 and Figure 2 As shown, a high-efficiency disc mixer for dairy products that can filter impurities includes a mixing tank 1 for carrying liquid. The top of the mixing tank 1 is provided with a removable barrel cover 11. The surface of the barrel cover 11 is provided with a liquid inlet 12, and the bottom of the mixing tank 1 is provided with a liquid outlet 13.

[0025] Milk liquid that needs to be mixed evenly, refined into fine particles, and improved in taste and stability enters the interior of mixing tank 1 through liquid inlet 12. After the mixing tank 1 mixes the material evenly, it is discharged through liquid outlet 13. The positions of liquid inlet 12 and liquid outlet 13 are designed to effectively adapt to the connection with other process equipment during the production process.

[0026] In this embodiment, a rotatable drive shaft 2 is provided inside the mixing tank 1, and a stirring assembly 3 is connected to the end of the drive shaft 2. The stirring assembly 3 includes a sleeve 31 and stirring blades 32. A plurality of sleeves 31 are provided on the surface of the drive shaft 2, and a plurality of stirring blades 32 are installed on the surface of each sleeve 31.

[0027] The sleeve 31 and the stirring blade 32 rotate with the drive shaft 2. During the high-speed rotation of the stirring blade 32, a strong velocity difference is generated between the blade edge and the material, forming a high shear force region. This shear force can break up particle clusters (such as fat globules or protein particles) and disrupt the laminar boundary layer of the fluid, promoting micro-mixing.

[0028] It should be noted that the axis of the drive shaft 2 is not on the same axis as the axis of the mixing tank 1. This setting makes the entire mixer a disc mixer. Disc mixers have significant advantages in scenarios requiring high uniformity and high stability in dairy products due to their strong shear force design and multi-directional mixing capabilities, while ordinary mixers are more suitable for basic mixing tasks.

[0029] The mixing tank 1, drive shaft 2, and filter assembly 5 are all made of stainless steel. Due to the extremely high hygiene requirements of the dairy industry, disc mixers are typically made of stainless steel for easy cleaning and sterilization. They are compact in structure, operate smoothly, and are suitable for continuous production needs.

[0030] Please continue to refer to this. Figure 3 The top of the mixing tank 1 is provided with a drive mechanism 4 for driving the transmission shaft 2 to rotate, and a filter assembly 5 for collecting impurities is provided on one side of the transmission shaft 2. The drive mechanism 4 includes a motor support 41, a drive motor 42, and a coupling 43. The motor support 41 is mounted on the surface of the tank cover 11, and the drive motor 42 is located above the motor support 41. The shaft of the drive motor 42 passes through the top of the motor support 41 and is connected to one end of the coupling 43. The other end of the coupling 43 is connected to the top of the transmission shaft 2.

[0031] The drive motor 42's shaft can drive the coupling 43 to rotate during rotation, and the coupling 43 can simultaneously drive the transmission shaft 2 to rotate during rotation. When the drive mechanism 4 is disassembled, repaired, or cleaned from the transmission shaft 2 connected to the end, simply remove the locking bolts between the top cover 11 of the tank and the top of the mixing tank 1, and then use an external crane to lift it up and place it in the designated position.

[0032] In this embodiment, the filter assembly 5 includes a filter support column 51, an arc-shaped support column 52, and a filter element 53. One side of the filter support column 51 is connected to the side wall of the drive shaft 2. The top of the filter support column 51 extends toward the surface of the drive shaft 2 and is provided with an arc-shaped support column 52. A filter element 53 is provided between each arc-shaped support column 52 and the filter support column 51.

[0033] The filter support column 51 and the arc-shaped support column 52 enhance the axial centrifugal force of the liquid inside the mixing tank 1 during rotation. The filter support column 51 and the arc-shaped support column 52 can further promote the material to circulate up and down, avoiding stratification. The curved surfaces of the filter support column 51 and the arc-shaped support column 52 can also throw the material against the container wall, and after impact, it will bounce back to form turbulence, reducing the dead zone of mixing.

[0034] Please continue to refer to this. Figure 4 In this embodiment, the filter element 53 includes a first filter screen 531 and a second filter screen 532. The mesh size of the first filter screen 531 is smaller than that of the second filter screen 532. During the rotation of the drive shaft 2, impurities inside the mixing tank 1 pass through the first filter screen 531 and get stuck on the second filter screen 532.

[0035] During rotation, the drive shaft 2 simultaneously drives the first filter screen 531 and the second filter screen 532 to rotate. The liquid inside the mixing tank 1 passes through the first filter screen 531 and the second filter screen 532 in sequence. Because the first filter screen 531 has a smaller mesh size, the gaps are larger, allowing impurities to pass through normally. However, when impurities encounter the second filter screen 532, its smaller mesh size prevents it from filtering them, causing these impurities to accumulate on its surface. Since the first and second filter screens 531 and 532 are constantly rotating at high speed, these impurities will not fall off under centrifugal force until the equipment is stopped.

[0036] The filtration effect of the first filter screen 531 and the second filter screen 532 can not only effectively remove impurities in dairy products, resulting in better quality of the finished emulsion after stirring, but also directly intercept particulate matter, reduce mechanical wear, and extend the life of the liquid outlet 13; at the same time, it can improve the mixing purity and improve product quality.

[0037] Working principle and usage of this utility model:

[0038] Milk liquid, which needs to be evenly mixed and finely ground to improve the product's taste and stability, enters the mixing tank 1 through the feed inlet 12. Then, the drive motor 42's shaft rotates, driving the coupling 43 to rotate. Simultaneously, the coupling 43 drives the transmission shaft 2. The sleeve 31 and the stirring blades 32 rotate along with the transmission shaft 2. During high-speed rotation, the stirring blades 32 create a strong velocity difference between the blade edges and the material, forming a high-shear force zone. This shear force can break up particle clusters (such as fat globules or protein particles) and disrupt the laminar boundary layer of the fluid, promoting micro-mixing.

[0039] During rotation, the drive shaft 2 simultaneously drives the first filter screen 531 and the second filter screen 532 to rotate. The liquid inside the mixing tank 1 passes through the first filter screen 531 and the second filter screen 532 in sequence. Because the first filter screen 531 has a smaller mesh size, the gap is larger, allowing impurities to pass through normally. However, when impurities encounter the second filter screen 532, the mesh size of the second filter screen 532 is not large enough to filter them. Therefore, these impurities accumulate on the surface of the second filter screen 532. Finally, after the mixing tank 1 has thoroughly mixed the material, it is discharged through the liquid outlet 13.

[0040] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A high-efficiency disc mixer for dairy products capable of filtering impurities, comprising a mixing tank (1) for carrying liquid, a drive shaft (2) disposed inside the mixing tank (1), wherein a mixing assembly (3) is connected to the end of the drive shaft (2), characterized in that, The top of the mixing tank (1) is provided with a drive mechanism (4) that drives the drive shaft (2) to rotate, and a filter assembly (5) that can collect impurities is provided on one side of the drive shaft (2).

2. The high-efficiency disc mixer for dairy products capable of filtering impurities according to claim 1, characterized in that, The top of the mixing tank (1) is provided with a removable barrel cover (11), the surface of the barrel cover (11) is provided with a liquid inlet (12), and the bottom of the mixing tank (1) is provided with a liquid outlet (13).

3. The high-efficiency disc mixer for dairy products capable of filtering impurities according to claim 1, characterized in that, The filter assembly (5) includes a filter support column (51), an arc-shaped support column (52), and a filter element (53). One side of the filter support column (51) is connected to the side wall of the drive shaft (2). The top of the filter support column (51) extends toward the surface of the drive shaft (2) and is provided with an arc-shaped support column (52). A filter element (53) is provided between each arc-shaped support column (52) and the filter support column (51). The filter support column (51) and the arc-shaped support column (52) can enhance the axial centrifugal force of the liquid inside the mixing tank (1) during rotation.

4. The high-efficiency disc mixer for dairy products capable of filtering impurities according to claim 3, characterized in that, The filter element (53) includes a first filter screen (531) and a second filter screen (532). The mesh number of the first filter screen (531) is smaller than that of the second filter screen (532). During the rotation of the drive shaft (2), impurities inside the mixing tank (1) pass through the first filter screen (531) and get stuck on the second filter screen (532).

5. The high-efficiency disc mixer for dairy products capable of filtering impurities according to claim 2, characterized in that, The stirring assembly (3) includes a sleeve (31) and stirring blades (32). The surface of the drive shaft (2) is provided with a plurality of sleeves (31), and a plurality of stirring blades (32) are installed on the surface of each sleeve (31).

6. The high-efficiency disc mixer for dairy products capable of filtering impurities according to claim 5, characterized in that, The axis of the drive shaft (2) is not on the same axis as the axis of the mixing tank (1), and the mixing tank (1), drive shaft (2) and filter assembly (5) are made of stainless steel.

7. The high-efficiency disc mixer for dairy products capable of filtering impurities according to claim 5, characterized in that, The drive mechanism (4) includes a motor support base (41), a drive motor (42) and a coupling (43). The motor support base (41) is installed on the surface of the barrel cover (11). The drive motor (42) is located above the motor support base (41). The shaft of the drive motor (42) passes through the top of the motor support base (41) and is connected to one end of the coupling (43). The other end of the coupling (43) is connected to the top of the transmission shaft (2).

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