Multistage dispersion mixing device for lubricating grease production

Abstract

The application relates to the grease production field and discloses a multistage dispersion mixing device for grease production, which comprises a mixing kettle, a closed end cover detachably connected to the top end of the mixing kettle, a multidirectional shearing stirring mechanism arranged in the inner cavity of the mixing kettle, a driving assembly, a convection shearing assembly, a linkage assembly, a stirring assembly and a heating assembly. The driving motor, the first spiral blade, the second spiral blade and the inclined rod and other structures are arranged, so that the grease materials input into the mixing kettle can be fully sheared and stirred, the screw directions of the first spiral blade and the second spiral blade are oppositely arranged, the second spiral blade rotates to downwardly convey the grease, the first spiral blade rotates to upwardly convey the grease, the grease forms strong convection in the dispersion mixing process, and the dispersion mixing treatment of the grease can be better realized by matching the movement of the inclined rod and the stirring rod.

Description

Technical Field

[0001] This invention relates to the field of lubricating grease production technology, specifically to a multi-stage dispersion and mixing device for lubricating grease production. Background Technology

[0002] Lubricating grease is a type of semi-solid lubricating material that combines lubrication, sealing, corrosion prevention, and shock absorption. It is widely used in machinery manufacturing, the automotive industry, metallurgical equipment, precision instruments, aerospace, and many other fields. The uniformity and stability of grease directly determine the operating accuracy, service life, and safety performance of mechanical equipment. The core process in grease production is material dispersion and mixing, which mainly achieves the full integration and fine dispersion of various solid and liquid components such as base oil, thickener, antioxidant, anti-wear agent, and rust inhibitor. This eliminates material agglomerates and forms a uniform and stable colloidal system. The effectiveness of dispersion and mixing is the key factor determining the quality of the finished grease product.

[0003] Currently, the dispersion and mixing equipment used in grease production is mostly a traditional single-stage stirring mixing vessel. During operation, as the material is fed into the mixing vessel, the motor drives the stirring rod to rotate, thereby achieving the dispersion and mixing of the grease.

[0004] The inventors of this application discovered in their research that the core deficiency of the aforementioned prior art lies in the fact that existing equipment operates in a single mode, mostly relying on the rotation and stirring of a single agitator to achieve material mixing. The shear force field and turbulence field distribution are singular, only achieving macroscopic homogenization of the materials, and failing to meet the fine dispersion requirements of high-viscosity lubricating grease materials. In actual production, due to the significant differences in the physical properties of lubricating grease raw material components—the base oil being a liquid medium, and thickeners and functional solid additives mostly being fine powders—significant differences in solid-liquid density and viscosity are found. A single stirring and mixing mode easily leads to problems such as powder agglomeration, component stratification, and localized enrichment, resulting in uneven dispersion of anti-wear and anti-oxidation functional components, ultimately causing large performance fluctuations and poor stability in batch products. Summary of the Invention

[0005] This invention provides a multi-stage dispersion and mixing device for lubricating grease production, which solves the problem of poor dispersion and mixing effect caused by the single stirring method in the prior art, and realizes multi-stage dispersion and mixing of materials to improve the dispersion and mixing effect of lubricating grease.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage dispersion and mixing device for lubricating grease production, comprising a mixing vessel, a detachably connected closed end cap at the top of the mixing vessel, and a multi-directional shearing and stirring mechanism disposed within the inner cavity of the mixing vessel. The multi-directional shearing and stirring mechanism includes a driving component, a convection shearing component, a linkage component, a stirring component, and a heating component; The drive assembly is located at the bottom of the mixing vessel; A convection shearing assembly is disposed on the inner side of the bottom of a mixing vessel. The convection shearing assembly includes a rotating shaft connected to the output end of a drive assembly. A first spiral blade is sleeved on the outer ring surface of the top end of the rotating shaft, and an extension rod is fixedly disposed on one side of the bottom of the rotating shaft. A second spiral blade is fixedly disposed on the surface of the extension rod. The linkage component is located inside the middle section of the mixing vessel; A stirring assembly is connected to one end of a linkage assembly. The stirring assembly includes an inclined rod, which is inclinedly disposed on the inner side of the top of the mixing vessel. A stirring rod is fixed on the outer ring surface of the inclined rod. Heating components are installed on the mixing vessel.

[0007] By adopting the above technical solution, it is convenient to perform sufficient shearing and stirring treatment on the lubricating grease material input into the mixing vessel. Since the first and second spiral blades are arranged in opposite directions, the rotation of the second spiral blade will transport the lubricating grease downward, while the rotation of the first spiral blade will transport the lubricating grease upward. This will cause the lubricating grease to form strong convection during the dispersion and mixing process. In addition, the movement of the inclined rod and the stirring rod can better achieve the dispersion and mixing treatment of the lubricating grease.

[0008] Preferably, the driving assembly includes a drive motor, which is installed at the bottom center of the mixing vessel, and the output end of the drive motor is connected to a reducer.

[0009] Preferably, the linkage component includes a fixed retaining ring, which is fixed to the inner wall of the mixing vessel. An internal gear ring is fixed to the inner wall of the fixed retaining ring. A driven gear is meshed with the inner side of the internal gear ring. A connecting member is rotatably connected to the top of the driven gear, and a driving gear is rotatably connected to the bottom of the other end of the connecting member.

[0010] Preferably, the heating assembly includes an inner heating sleeve installed in the inner cavity of the mixing vessel, and an outer heating sleeve is fitted on the outer side of the mixing vessel.

[0011] Preferably, a pressure monitor is installed on the closed end cap, and a temperature monitor is installed on one side of the bottom of the mixing vessel.

[0012] Preferably, a first pipe is connected to one side of the bottom of the mixing vessel, a heater is connected to the other end of the first pipe, a second pipe is connected to one side of the bottom of the heater, a third pipe is connected to the top of one end of the first pipe, an air-cooled heat exchanger is connected to the other end of the third pipe, and a fourth pipe is connected to one side of the air-cooled heat exchanger.

[0013] Preferably, the second spiral blade is arranged in a spiral shape, and the second spiral blade is arranged in a ring array along the center point of the rotation axis.

[0014] Preferably, the driven gear is meshed with the internal gear ring and the driving gear on both sides through teeth, and the driven gear is rotatably connected to the connecting member through the bearing seat.

[0015] Preferably, the inclined rods and the connecting members are distributed at an incline, and the stirring rods are arranged in an equidistant array along the surface of the inclined rods.

[0016] This invention provides a multi-stage dispersion and mixing device for lubricating grease production. It has the following beneficial effects: 1. The present invention, through the structure of the drive motor, the first spiral blade, the second spiral blade, and the tilting rod, can facilitate the subsequent thorough shearing and stirring of the lubricating grease material input into the mixing vessel. Since the first and second spiral blades are arranged in opposite directions, the rotation of the second spiral blade will transport the lubricating grease downward, while the rotation of the first spiral blade will transport the lubricating grease upward. This creates strong convection during the dispersion and mixing process of the lubricating grease. In conjunction with the movement of the tilting rod and the stirring rod, the dispersion and mixing of the lubricating grease can be better achieved.

[0017] 2. The present invention, through the setting of heaters and air-cooled heat exchangers, can easily achieve full heating of the grease by using inner and outer heating jackets during the subsequent dispersion and stirring of the grease. Furthermore, since the grease undergoes convective motion in the mixing vessel, the setting of two heating jackets can better improve the heating effect and efficiency of the grease, making it more practical overall. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a side view schematic diagram of the present invention; Figure 3 This is a side view of the mixing vessel of the present invention; Figure 4 This is a schematic diagram of the interior of the mixing vessel of the present invention; Figure 5 This is a side view of the inner heating sleeve of the present invention; Figure 6 This is a side view of the fixed retaining ring of the present invention; Figure 7 This is a bottom view of the fixing retaining ring of the present invention; Figure 8 This is a schematic diagram of the connection between the driven gear and the fixed retaining ring of the present invention.

[0019] The components include: 1. Mixing vessel; 2. Closed end cap; 3. Drive motor; 4. Reducer; 5. Rotating shaft; 6. First spiral blade; 7. Extension rod; 8. Second spiral blade; 9. Inner heating jacket; 10. Fixed retaining ring; 11. Internal gear ring; 12. Driven gear; 13. Connecting piece; 14. Drive gear; 15. Inclined rod; 16. Stirring rod; 17. Outer heating jacket; 18. Pressure monitor; 19. Temperature monitor; 20. First pipe; 21. Heater; 22. Second pipe; 23. Third pipe; 24. Air-cooled heat exchanger; 25. Fourth pipe. Detailed Implementation

[0020] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see the appendix Figure 1 - Appendix Figure 8 This invention provides a multi-stage dispersion and mixing device for lubricating grease production, including a mixing vessel 1, a detachably connected closed end cap 2 at the top of the mixing vessel 1, and a multi-directional shearing and stirring mechanism disposed within the inner cavity of the mixing vessel 1. The multi-directional shearing and stirring mechanism includes a drive assembly, a convection shearing assembly, a linkage assembly, a stirring assembly, and a heating assembly; The drive assembly is located at the bottom of the mixing vessel 1; The convection shearing assembly is located on the inner bottom of the mixing vessel 1. The convection shearing assembly includes a rotating shaft 5, which is connected to the output end of the drive assembly. A first spiral blade 6 is sleeved on the outer ring surface of the top end of the rotating shaft 5, and an extension rod 7 is fixed on one side of the bottom of the rotating shaft 5. A second spiral blade 8 is fixed on the surface of the extension rod 7. The linkage component is located on the inner side of the middle section of mixing vessel 1; A stirring assembly is connected to one end of a linkage assembly. The stirring assembly includes an inclined rod 15, which is inclinedly disposed on the inner side of the top of the mixing vessel 1. A stirring rod 16 is fixed on the outer ring surface of the inclined rod 15. Heating components are installed on mixing vessel 1; Specifically, during use, the closed end cover 2 is opened, and the material is fed into the mixing vessel 1 through the opening of the closed end cover 2. Because the driving component is arranged at the bottom of the mixing vessel 1, the driving component outputs power to drive the rotating shaft 5 to rotate. At this time, under the action of the rotating shaft 5, the linkage component will move synchronously. At this time, under the action of the linkage component, the tilting rod 15 will make circular motion and rotation in the inner cavity of the mixing vessel 1. With the movement of the tilting rod 15, the stirring rod 16 can fully disperse and stir the grease input into the inner cavity of the mixing vessel 1. At the same time, the heating component fully... The process controls the temperature of the material inside the mixing vessel 1, and multiple mechanisms work simultaneously to form a multi-level dispersion mixing field with vertical convection, circumferential circulation, and oblique shearing. This solves the problem of agglomeration and stratification of high-viscosity grease. Since the first spiral blade 6 and the second spiral blade 8 rotate in opposite directions, when the rotating shaft 5 rotates, the second spiral blade 8 pushes the material downward and the first spiral blade 6 lifts the material upward, forming a strong vertical convection in the vessel. Furthermore, since the inclined rod 15 and the stirring rod 16 rotate around the vessel wall with the linkage assembly, they can perform lateral shearing and refinement of the material in the flow field. The dual stirring action achieves multi-level uniform dispersion of the grease.

[0022] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 The drive assembly includes a drive motor 3, which is installed at the bottom center of the mixing vessel 1, and the output end of the drive motor 3 is connected to a reducer 4. Specifically, the drive motor 3 is fixed at the bottom center of the mixing tank 1. After the equipment is started, the drive motor 3 outputs rotational power, which is first transmitted to the reducer 4. Because the reducer 4 has the function of reducing speed and increasing torque, it can amplify the output torque and reduce the speed, which is suitable for the large shear force required for stirring high viscosity grease. The output end of the reducer 4 is directly connected to the rotating shaft 5. Therefore, the rotating shaft 5 obtains a stable and large torque rotational driving force, providing the full power source for the convection shearing component and the linkage component.

[0023] Please see the appendix Figure 6 and attached Figure 8 The linkage component includes a fixed retaining ring 10, which is fixed to the inner wall of the mixing vessel 1. An internal gear ring 11 is fixed to the inner wall of the fixed retaining ring 10. A driven gear 12 is meshed with the inner side of the internal gear ring 11. A connecting piece 13 is rotatably connected to the top of the driven gear 12, and a driving gear 14 is rotatably connected to the bottom of the other end of the connecting piece 13. Specifically, the fixed retaining ring 10 is fixed to the inner wall of the mixing vessel 1, and the internal gear ring 11 on it is fixed in position and does not rotate. The driving gear 14 at the top of the rotating shaft 5 rotates synchronously with the rotating shaft 5. The outer side of the driving gear 14 meshes with the driven gear 12, and the outer side of the driven gear 12 meshes with the stationary internal gear ring 11. Therefore, when the driving gear 14 rotates and generates a meshing force, it forces the driven gear 12 to rotate on its own while making a circular revolution along the inner side of the internal gear ring 11. The top of the driven gear 12 is connected to the connecting piece 13, which rotates synchronously with the driven gear 12. The end of the connecting piece 13 is equipped with an inclined rod 15. Therefore, the stirring assembly can simultaneously realize the revolution around the center of the vessel and its own small rotation, thus expanding the stirring coverage area.

[0024] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 4 Appendix Figure 5 Appendix Figure 6 and attached Figure 7 The heating assembly includes an inner heating sleeve 9, which is installed in the inner cavity of the mixing vessel 1, and an outer heating sleeve 17 is fitted on the outer side of the mixing vessel 1. Specifically, the inner heating jacket 9 is arranged in the central area of ​​the inner cavity of the mixing vessel 1, and can directly contact the material in the middle of the vessel to achieve internal heat conduction. The outer heating jacket 17 is wrapped around the outer wall of the mixing vessel 1, and can heat the entire vessel from the outside. The two form a double-layer heating structure. Because the material in the vessel is continuously convected up and down under the action of the first spiral blade 6 and the second spiral blade 8, the material continuously circulates between the inner heating jacket 9 and the outer heating jacket 17, and there will be no local material stagnation due to heating. This improves the overall heating uniformity and heating efficiency, and ensures the constant temperature environment required for the thickening and dispersion of lubricating grease.

[0025] Please see the appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 A pressure monitor 18 is installed on the closed end cap 2, and a temperature monitor 19 is installed on one side of the bottom of the mixing vessel 1. Specifically, the pressure monitor 18 is installed on the top of the closed end cover 2, which completely seals the upper end of the mixing vessel 1. The pressure generated in the cavity during the stirring and heating process of the material inside the vessel can be directly transmitted to the pressure monitor 18. Therefore, the pressure monitor 18 can collect the gas pressure data inside the vessel in real time, avoiding safety hazards caused by high pressure. The temperature monitor 19 is arranged at the bottom of the mixing vessel 1. The bottom is the endpoint of the material convection circulation and the material concentration is the highest. The temperature collected here can accurately reflect the true temperature of the overall lubricating grease. The staff can adjust the heating and stirring operation parameters in real time based on the two sets of monitoring data.

[0026] Please see the appendix Figure 1 and attached Figure 2A first pipe 20 is connected to one side of the bottom of the mixing vessel 1. A heater 21 is connected to the other end of the first pipe 20. A second pipe 22 is connected to one side of the bottom of the heater 21. A third pipe 23 is connected to the top of one end of the first pipe 20. An air-cooled heat exchanger 24 is connected to the other end of the third pipe 23. A fourth pipe 25 is connected to one side of the air-cooled heat exchanger 24. Specifically, during operation, heater 21 is connected to outer heating jacket 17 through first pipe 20 and second pipe 22. Therefore, the heat transfer medium output by heater 21 can flow into outer heating jacket 17 through second pipe 22. After heat exchange and cooling, the medium flows back to heater 21 through first pipe 20, forming a constant temperature heating loop. A third pipe 23 is branched from first pipe 20 and connected to air-cooled heat exchanger 24. Air-cooled heat exchanger 24 is then connected to the pipeline loop through fourth pipe 25. When the temperature inside the reactor exceeds the standard, the flow direction of the medium can be switched so that the heat transfer medium flows through third pipe 23 into air-cooled heat exchanger 24. The medium heat is quickly removed by air cooling. The cooled medium flows back through fourth pipe 25, achieving rapid cooling. This works with heater 21 to complete bidirectional temperature control for heating and cooling, adapting to the temperature requirements of different production stages of lubricating grease. Control switches are installed on multiple pipes.

[0027] Please see the appendix Figure 4 Appendix Figure 5 Appendix Figure 6 and attached Figure 8 The second spiral blade 8 is arranged in a spiral shape, and the second spiral blade 8 is arranged in a ring array along the center point of the rotating shaft 5; Specifically, the rotation of the second spiral blade 8 facilitates the downward conveying of the lubricating grease input into the mixing vessel 1.

[0028] Please see the appendix Figure 6 and attached Figure 8 The driven gear 12 is meshed with the internal gear ring 11 and the driving gear 14 respectively through teeth on both sides, and the driven gear 12 is rotatably connected with the connecting member 13 through the bearing seat. Specifically, since the driven gear 12 is meshed with the internal gear ring 11 and the driving gear 14 through its teeth, the rotation of the driving gear 14 makes it easy for the driven gear 12 to make a circular motion along the internal gear ring 11.

[0029] Please see the appendix Figure 5 Appendix Figure 6 and attached Figure 8 The inclined rods 15 and the connecting parts 13 are inclinedly distributed, and the stirring rods 16 are arranged in an equidistant array along the surface of the inclined rods 15.

[0030] Specifically, since the tilt rod 15 is tilted as a whole, and the stirring rod 16 is also tilted relative to the tilt rod 15, the rotation of the tilt rod 15 facilitates the subsequent rotation of multiple sets of stirring rods 16, thereby better mixing and stirring the grease inside the mixing vessel 1.

[0031] Working process: During use, the closed end cover 2 is opened, and the material is fed into the mixing vessel 1 through the opening of the closed end cover 2. Immediately, the drive motor 3 operates, causing the reducer 4 connected to its output end to work. This, combined with the operation of the reducer 4, causes the rotating shaft 5 to rotate. At this time, the rotation of the rotating shaft 5 synchronously drives the linkage components to move. Because the first spiral blade 6 and the second spiral blade 8 rotate in opposite directions, when the rotating shaft 5 rotates, the second spiral blade 8 pushes the material downwards, and the first spiral blade 6 lifts the material upwards, creating a strong vertical convection within the vessel. This better shears and stirs the grease. Simultaneously, since the drive gear 14 is fixedly connected to the rotating shaft 5, the rotation of the rotating shaft 5 causes the drive gear 14 to move. The gear 14 also rotates accordingly. Since the fixed retaining ring 10 is fixed to the inner wall of the mixing vessel 1, the position of the internal gear ring 11 on it is fixed and does not rotate. The outer side of the driving gear 14 meshes with the driven gear 12, and the outer side of the driven gear 12 meshes with the stationary internal gear ring 11. Therefore, when the driving gear 14 rotates and generates a meshing force, it forces the driven gear 12 to rotate on its own while making a circular revolution along the inner side of the internal gear ring 11. The connecting piece 13 at the top of the driven gear 12 follows the driven gear 12 and revolves synchronously. With the movement of the driven gear 12, the tilting rod 15 can drive the stirring rod 16 to effectively disperse and stir the grease in the inner cavity of the mixing vessel 1. The dual stirring action realizes the multi-stage uniform dispersion of the grease. The inner heating jacket 9 is arranged in the central area of ​​the inner cavity of the mixing vessel 1, and can directly contact the material in the middle of the vessel to achieve internal heat conduction. The outer heating jacket 17 is wrapped around the outer wall of the mixing vessel 1, and can heat the entire vessel from the outside. The two form a double-layer heating structure. As the material in the vessel continues to flow up and down under the action of the first spiral blade 6 and the second spiral blade 8, the material continuously circulates between the inner heating jacket 9 and the outer heating jacket 17, and there will be no local material stagnation due to heating, thereby improving the overall heating uniformity and heating efficiency, and ensuring the constant temperature environment required for the thickening and dispersion of lubricating grease. The pressure monitor 18 is installed on the top of the closed end cover 2, which completely seals the upper part of the mixing vessel 1. The pressure generated in the cavity during the stirring and heating process of the material inside the vessel can be directly transmitted to the pressure monitor 18. Therefore, the pressure monitor 18 can collect the gas pressure data inside the vessel in real time to avoid safety hazards caused by high pressure. The temperature monitor 19 is arranged at the bottom of the mixing vessel 1. The bottom is the endpoint of the material convection circulation and the material concentration is the highest. The temperature collected here can accurately reflect the true temperature of the overall lubricating grease. The staff can adjust the heating and stirring operation parameters in real time based on the two sets of monitoring data. Meanwhile, during operation, heater 21 is connected to outer heating jacket 17 via first pipe 20 and second pipe 22. Therefore, the heat transfer medium output from heater 21 can flow into outer heating jacket 17 via second pipe 22. After heat exchange and cooling, the medium flows back to heater 21 via first pipe 20, forming a constant temperature heating loop. A third pipe 23 branches off from first pipe 20 and connects to air-cooled heat exchanger 24. Air-cooled heat exchanger 24 is then connected to the pipeline loop via fourth pipe 25. When the temperature inside the reactor exceeds the limit, the flow direction of the medium can be switched, allowing the heat transfer medium to flow through third pipe 23 into air-cooled heat exchanger 24. The medium's heat is quickly removed by air cooling, and the cooled medium flows back via fourth pipe 25, achieving rapid cooling. This, combined with heater 21, completes bidirectional temperature control for heating and cooling, adapting to the temperature requirements of different production stages of lubricating grease. It is worth noting that, since the mixing vessel of this multi-stage dispersion mixing device for grease production is equipped with a temperature monitor 19 and a pressure monitor 18, and the mass production equipment is equipped with an over-temperature automatic shut-off interlock mechanism and a vessel safety relief structure, when either the temperature or pressure inside the vessel exceeds the preset safety threshold, the system can automatically cut off the transmission operation of the drive component and trigger the safety relief structure to release the pressure inside the vessel, thus ensuring the safe operation of the mixing process.

[0032] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage dispersion mixing device for lubricating grease production, comprising a mixing vessel (1), a closed end cap (2) detachably connected to the top of the mixing vessel (1), and a multi-directional shearing and stirring mechanism provided in the inner cavity of the mixing vessel (1), characterized in that: The multi-directional shearing and stirring mechanism includes a driving component, a convection shearing component, a linkage component, a stirring component, and a heating component; The driving component is located at the bottom of the mixing vessel (1); A convection shearing assembly is disposed on the inner side of the bottom of the mixing vessel (1). The convection shearing assembly includes a rotating shaft (5), which is connected to the output end of the drive assembly. A first spiral blade (6) is sleeved on the outer ring surface of the top end of the rotating shaft (5), and an extension rod (7) is fixed on one side of the bottom of the rotating shaft (5). A second spiral blade (8) is fixed on the surface of the extension rod (7). The linkage component is located on the inner side of the middle section of the mixing vessel (1); A stirring assembly is connected to one end of a linkage assembly. The stirring assembly includes an inclined rod (15), which is inclinedly disposed on the inner side of the top of the mixing vessel (1). A stirring rod (16) is fixed on the outer ring surface of the inclined rod (15). Heating components are installed on the mixing vessel (1).

2. The multi-stage dispersion and mixing device for lubricating grease production according to claim 1, characterized in that, The drive assembly includes a drive motor (3), which is installed at the bottom center of the mixing vessel (1), and the output end of the drive motor (3) is connected to a reducer (4).

3. The multi-stage dispersion and mixing device for lubricating grease production according to claim 1, characterized in that, The linkage assembly includes a fixed retaining ring (10), which is fixed to the inner wall of the mixing vessel (1). An internal gear ring (11) is fixed to the inner wall of the fixed retaining ring (10). A driven gear (12) is meshed with the inner side of the internal gear ring (11). A connecting piece (13) is rotatably connected to the top of the driven gear (12). A driving gear (14) is rotatably connected to the bottom of the other end of the connecting piece (13).

4. The multi-stage dispersion and mixing device for lubricating grease production according to claim 1, characterized in that, The heating assembly includes an inner heating sleeve (9), which is installed in the inner cavity of the mixing vessel (1), and an outer heating sleeve (17) is fitted on the outer side of the mixing vessel (1).

5. The multi-stage dispersion and mixing device for lubricating grease production according to claim 1, characterized in that, A pressure monitor (18) is installed on the closed end cap (2), and a temperature monitor (19) is installed on one side of the bottom of the mixing vessel (1).

6. The multi-stage dispersion and mixing device for lubricating grease production according to claim 1, characterized in that, The bottom side of the mixing vessel (1) is connected to a first pipe (20), the other end of the first pipe (20) is connected to a heater (21), the bottom side of the heater (21) is connected to a second pipe (22), the top of one end of the first pipe (20) is connected to a third pipe (23), the other end of the third pipe (23) is connected to an air-cooled heat exchanger (24), and one side of the air-cooled heat exchanger (24) is connected to a fourth pipe (25).

7. The multi-stage dispersion and mixing device for lubricating grease production according to claim 1, characterized in that, The second spiral blade (8) is arranged in a spiral shape, and the second spiral blade (8) is arranged in a ring array along the center point of the rotating shaft (5).

8. A multi-stage dispersion and mixing device for lubricating grease production according to claim 3, characterized in that, The driven gear (12) is meshed with the internal gear ring (11) and the driving gear (14) on both sides through teeth, and the driven gear (12) is rotatably connected with the connecting member (13) through the bearing seat.

9. A multi-stage dispersion and mixing device for lubricating grease production according to claim 1, characterized in that, The inclined rod (15) and the connector (13) are inclinedly distributed, and the stirring rod (16) is arranged in an equidistant array along the surface of the inclined rod (15).

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