A mixing device for milk powder production
Patent Information
- Application Number
- CN202522627487.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-11
AI Technical Summary
[0002]奶粉生产分为湿法和干法工艺,其中湿法即在液态的奶液中,加入配方成分混合,而后再喷雾干燥成奶粉,在混合过程中,现有的设备大多是固定的搅拌桶,用电机驱动搅拌桨旋转,进行搅拌,但是该方式很容易产生死角,致使成品一致性不足,甚至部分物料黏附,搅拌效率较低
本申请采用滚筒式设计,并设置混合凸条,利用奶液翻滚过程中的动能,加以引导形成大量紊流,实现高效混合。
Smart Images

Figure CN224912223U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of milk powder production technology, specifically to a mixing device for milk powder production. Background Technology
[0002] Milk powder production is divided into wet and dry processes. The wet process involves adding the formula ingredients to liquid milk, mixing them, and then spray drying them into milk powder. During the mixing process, most existing equipment consists of a fixed mixing tank with a motor-driven stirring paddle. However, this method is prone to creating dead zones, resulting in insufficient consistency of the finished product and even some materials sticking together, leading to low mixing efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide a reasonably designed mixing device for milk powder production that addresses the defects and shortcomings of the existing technology and can solve the aforementioned defects.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: It includes a mixing tank horizontally mounted on a support, with mixing protrusions on the inner wall of the mixing tank for accelerating mixing, a vertical support on one side of the support, one end of the mixing tank rotatably connected to the support, and a drive motor located on the support at this location, the shaft of the drive motor being drivenly connected to the mixing tank; the support also has multiple sets of driven mechanisms, and the mixing tank is rotatably mounted on the support through multiple sets of driven mechanisms; on the mixing tank, at the end away from the drive motor, there are an inlet pipe and an outlet pipe for feeding and discharging materials, as well as a vent pipe for maintaining internal and external air pressure balance, and a rotary connector is provided on this side of the mixing tank, with the above-mentioned multiple pipes all located in the rotary connector, and the outlet pipe connected to an outlet pump for sucking out the mixed milk.
[0005] Preferably, the rotary connector includes a circular positioning plate with a circular hole at the center of the side of the mixing tank. Multiple rotary bearings are embedded in the hole, and the positioning plate is rotatably mounted in the hole through the rotary bearings. Several sealing rings are provided on the outside of the positioning plate, and a cover plate is provided in the gap outside the hole. A vertical fixed support is provided on the bracket. Positioning holes are provided on the positioning plate and the fixed support, and pins are inserted into the positioning holes. The discharge pipe, feed pipe and vent pipe are all inserted through the positioning plate.
[0006] Preferably, one end of the discharge pipe is located at the bottom of the mixing tank, and the other end of the vent pipe is located at the top of the mixing tank.
[0007] Preferably, the mixing ridge is a plurality of ridges evenly arranged along the axial direction of the mixing barrel, each ridge including a forward part and a reverse part, both the forward part and the reverse part being spiral-shaped, and the two ends being connected to form a ring-shaped ridge.
[0008] Preferably, the feed pipe is provided with a control valve for controlling the feed, and a feeder is also provided on the feed pipe between the control valve and the mixing tank. The feeder includes a hollow capsule-shaped outer shell with a sealing cap hinged on the top. The outer shell is also provided with a bolt and nut assembly for clamping the sealing cap.
[0009] Preferably, the driven mechanism includes two annular fixed rings mounted on the bracket. The fixed rings are sleeved on the outside of the mixing tank. An annular limiting ring is provided on the outer wall of the mixing tank. An annular guide groove is opened on the surface of the limiting ring. Multiple sets of driven limiting wheels are provided between the two fixed rings. Each set of driven limiting wheels is rotatably connected to the fixed ring on both sides through a rotating shaft and a bearing. The driven limiting wheel is a guide wheel with a central protrusion, and the protrusion is located in the groove of the limiting ring.
[0010] The beneficial effects of this utility model after adopting the above structure are: This application adopts a roller design and is equipped with mixing ridges. It utilizes the kinetic energy of the milk during the rolling process to guide and form a large amount of turbulence, thereby achieving efficient mixing.
[0011] This application features a rotary connector, which keeps the angle of the inlet and outlet ventilation pipes fixed, thereby enabling inlet and outlet of materials through external pipes. This method is highly efficient. Furthermore, the mixing tank forms a relatively sealed environment, with no contact with the outside world except for the feeder. Therefore, under good hygienic conditions, it is not easy for the inside to rot or for bacteria to multiply, resulting in a lower cleaning frequency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the left side structure of this utility model; Figure 2 This is a schematic diagram of the right side structure of this utility model; Figure 3 This is a longitudinal sectional view of the present invention; Figure 4 This is a top-view sectional view of the mixing tank in this utility model; Figure 5 This is a cross-sectional view of the mixing tank from an upward angle in this utility model; Figure 6 This is a cross-sectional view of the rotary connector in this utility model; Figure 7 yes Figure 6 Enlarged view of section B in the middle; Figure 8 This is a cross-sectional view of the driven limiting wheel in this utility model; Figure 9 yes Figure 2 Enlarged view of section A.
[0013] Explanation of reference numerals in the attached figures: 1. Bracket; 2. Mixing tank; 3. Drive motor; 4. Fixing ring; 5. Rotating shaft; 6. Driven limit wheel; 7. Limiting ring; 8. Mixing protrusion; 801. Forward part; 802. Reverse part; 9. Discharge pipe; 10. Vent pipe; 11. Feed pipe; 12. Feeder; 13. Sealing cover; 14. Control valve; 15. Discharge pump; 16. Rotary connector; 1601. Positioning plate; 1602. Rotary bearing; 1603. Sealing ring; 1604. Cover plate; 1605. Pin; 17. Fixed support. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] See Figures 1-9 As shown, it includes a mixing tank 2 horizontally mounted on a support 1. The inner wall of the mixing tank 2 is provided with mixing protrusions 8 for accelerating mixing. A vertical support is provided on one side of the support 1, and one end of the mixing tank 2 is rotatably connected to it. A drive motor 3 is provided on the support 1 at this location, and the rotating shaft 5 of the drive motor 3 is drivenly connected to the mixing tank 2. The support 1 is also provided with multiple sets of driven mechanisms, and the mixing tank 2 is rotatably mounted on the support 1 through multiple sets of driven mechanisms. On the mixing tank 2, at the end away from the drive motor 3, there is a feed pipe 11 and a discharge pipe 9 for feeding and discharging materials, as well as a vent pipe 10 for maintaining the balance of internal and external air pressure. A rotary connector 16 is provided on this side of the mixing tank 2, and the above-mentioned multiple pipes are all located in the rotary connector 16. The discharge pipe 9 is connected to a discharge pump 15 for sucking out the mixed milk. The rotary connector 16 includes a circular positioning plate 1601. A circular hole is opened at the center of the side of the mixing tank 2, and multiple rotary bearings 1602 are embedded in the hole. The positioning plate 1601 is rotatably installed in the hole through the rotary bearings 1602. Several sealing rings 1603 are provided on the outside of the positioning plate 1601. A cover plate 1604 is provided in the gap outside the hole. A vertical fixed support 17 is provided on the bracket 1. Positioning holes are opened on the positioning plate 1601 and the fixed support 17. A pin 1605 is inserted into the positioning hole. The discharge pipe 9, the feed pipe 11 and the vent pipe 10 are all inserted through the positioning plate 1601. During the rotation of the mixing tank 2, the positioning plate 1601 is connected to the fixed support 17 through the pin 1605 to maintain a stable angle. The bearings ensure that the rotation between the positioning plate 1601 and the mixing tank 2 is unobstructed. The sealing rings 1603 keep the inside and outside sealed to prevent milk from flowing out. The discharge pipe 9 is located at the bottom of the mixing tank 2 at one end, so that the discharge is continuously drawn from the bottom. The vent pipe 10 is located at the top of the mixing tank 2 at one end, so that the gas flows from the top to maintain the air pressure balance inside the tank. Positive and negative pressure devices can also be connected to the vent pipe 10. For example, negative pressure is applied inside the pipe during the feeding process to reduce air pressure resistance and accelerate feeding, while positive pressure is applied during the discharge to accelerate discharge. A waterproof and breathable membrane can also be installed at the inner pipe opening to prevent milk from flowing out of the pipe during the mixing process. The mixing ridges 8 consist of several ridges evenly arranged along the axial direction of the mixing tank 2. Each ridge includes a forward portion 801 and a reverse portion 802. Both the forward portion 801 and the reverse portion 802 are spiral-shaped, and their two ends are connected to form a ring-shaped ridge. During the rotation of the mixing tank 2, the two sets of ridges guide the milk in completely opposite directions. Figure 3 For example, the lower part is the reverse part 802. Assuming the mixing tank 2 rotates clockwise, the milk will flow to the left at the bottom of the tank. As it rotates, the forward part 801 reaches the bottom, and the flow direction at that point changes to the right. Therefore, near the tank wall, there will be a reciprocating flow. At the same time, as the spiral protrusions rotate, they will also cause the milk to tumble around the circumference of the mixing tank 2. Combined with the flow velocity difference between the tank wall and the area near the central axis, a large amount of turbulence will be generated in the mixing tank 2, thereby making the materials mix quickly and thoroughly. The feed pipe 11 is equipped with a control valve 14 for controlling the feed. The feed pipe 11 between the control valve 14 and the mixing tank 2 is also equipped with a feeder 12. The feeder 12 includes a hollow capsule-shaped outer shell with a sealing cover 13 hinged to its top. The outer shell is also equipped with a bolt and nut assembly for clamping the sealing cover 13. By removing the nut, the sealing cover 13 can be lifted down to add materials manually, such as some powder or solid materials. After locking, the milk can be fed through the control valve 14. During the flow of milk, the added material can be poured into the mixing tank 2. In milk powder production, the proportion of additives is small, and the feeding equipment itself has a certain pressure, so the feed pipe 11 will not be blocked. Because it is designed as a capsule, there will be no dead corners during the flow of milk, ensuring that all ingredients can be fed in smoothly. The driven mechanism includes two annular fixed rings 4 mounted on the bracket 1. The fixed rings 4 are fitted around the outside of the mixing tank 2. An annular limiting ring 7 is provided on the outer wall of the mixing tank 2. An annular guide groove is opened on the surface of the limiting ring 7. Multiple sets of driven limiting wheels 6 are provided between the two fixed rings 4. Each set of driven limiting wheels 6 is rotatably connected to the fixed ring 4 on both sides through a rotating shaft 5 and a bearing. The driven limiting wheel 6 is a guide wheel with a raised center, and the raised part is located in the groove of the limiting ring 7. On the one hand, it supports the mixing tank 2, and on the other hand, it limits it, keeping its rotation axis 5 center line unchanged.
[0016] During operation, after opening the sealing cover 13 to add material and closing it, the control valve 14 can be opened to add milk. Then, the drive motor 3 is turned on to rotate the mixing tank 2 to mix the milk. After completion, the discharge pump 15 is started to extract the milk for subsequent processing.
[0017] The installation, connection, or setting methods of the components not detailed above are all common mechanical methods, and the specific structure, model, and coefficient indicators of all their components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be elaborated further.
[0018] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A mixing device for milk powder production, characterized in that: It includes a mixing tank (2) horizontally mounted on a support (1). The inner wall of the mixing tank (2) is provided with mixing protrusions (8) for accelerating mixing. A vertical support is provided on one side of the support (1), and one end of the mixing tank (2) is rotatably connected to it. A drive motor (3) is provided on the support (1) at this location. The shaft (5) of the drive motor (3) is connected to the mixing tank (2) via a transmission. The support (1) is also provided with multiple sets of driven mechanisms. The mixing tank (2) is rotatably mounted on the support (1) through multiple sets of driven mechanisms. On the mixing tank (2), at the end away from the drive motor (3), there is a feed pipe (11) and a discharge pipe (9) for feeding and discharging materials, as well as a vent pipe (10) for maintaining the balance of internal and external air pressure. A rotary connector (16) is provided on this side of the mixing tank (2). All of the above-mentioned pipes are located in the rotary connector (16). The discharge pipe (9) is connected to the discharge pump (15) for sucking out the mixed milk.
2. The mixing equipment for milk powder production according to claim 1, characterized in that: The rotary connector (16) includes a circular positioning plate (1601). A circular hole is opened at the center of the side of the mixing tank (2). Multiple rotary bearings (1602) are embedded in the hole. The positioning plate (1601) is rotatably installed in the hole through the rotary bearings (1602). Several sealing rings (1603) are provided on the outside of the positioning plate (1601). A cover plate (1604) is provided in the gap outside the hole. A vertical fixed support (17) is provided on the bracket (1). Positioning holes are opened on the positioning plate (1601) and the fixed support (17). A pin (1605) is inserted into the positioning hole. The discharge pipe (9), the feed pipe (11) and the vent pipe (10) are all inserted into the positioning plate (1601).
3. The mixing equipment for milk powder production according to claim 2, characterized in that: The discharge pipe (9) is located at the bottom of the mixing tank (2) at one end, and the vent pipe (10) is located at the top of the mixing tank (2) at one end.
4. The mixing equipment for milk powder production according to claim 1, characterized in that: The mixing ridge (8) consists of several ridges evenly arranged along the axis of the mixing barrel (2). Each ridge includes a forward part (801) and a reverse part (802). Both the forward part (801) and the reverse part (802) are spiral-shaped, and their two ends are connected to form a ring-shaped ridge.
5. A mixing device for milk powder production according to claim 2, characterized in that: The feed pipe (11) is provided with a control valve (14) for controlling the feed. The feed pipe (11) between the control valve (14) and the mixing tank (2) is also provided with a feeder (12). The feeder (12) includes a hollow capsule-shaped outer shell with a sealing cap (13) hinged on its top. The outer shell is also provided with a bolt and nut assembly for clamping the sealing cap (13).
6. A mixing device for milk powder production according to claim 1, characterized in that: The driven mechanism includes two annular fixed rings (4) mounted on the bracket (1). The fixed rings (4) are fitted around the outside of the mixing tank (2). An annular limiting ring (7) is provided on the outer wall of the mixing tank (2). An annular guide groove is opened on the surface of the limiting ring (7). Multiple sets of driven limiting wheels (6) are provided between the two fixed rings (4). Both sides of each set of driven limiting wheels (6) are rotatably connected to the fixed rings (4) through a rotating shaft (5) and a bearing. The driven limiting wheel (6) is a guide wheel with a central protrusion, and the protrusion is located in the groove of the limiting ring (7).