Multifunctional lubricant blending kettle

Abstract

The utility model relates to lubricant production equipment technical field, concretely relates to a multifunctional lubricant blending kettle, include: kettle body, fixedly arranged driving mechanism in the kettle body upper portion and built -in and hang in the kettle body inside stirring device, wherein, the kettle body outside is equipped with the jacket, the upper portion one side of jacket is fixedly arranged with first cooling water interface, the bottom of jacket is fixedly arranged with second cooling water interface, the outside wall of jacket is fixedly arranged with a plurality of hanging ear seat on the circumference array, the inside of kettle body is fixedly arranged with heat exchange pipe, the inlet end of heat exchange pipe penetrates the bottom of kettle body and the bottom of jacket, the outlet end of heat exchange pipe penetrates in the upper portion of kettle body, the upper portion of kettle body is fixedly arranged with feed inlet, process interface, jar inside balance breathing mouth and a plurality of hoisting lug, the bottom of kettle body is fixedly arranged with discharge interface, the utility model is applicable to the efficient production of multi -formula, high -performance lubricant.

Description

Technical Field

[0001] This utility model relates to the technical field of lubricant production equipment, specifically to a multifunctional lubricant mixing kettle. Background Technology

[0002] In the lubricant production process, the blending tank is the core equipment for achieving uniform mixing of base oil and additives. Traditional blending tanks generally suffer from the following technical defects: First, the mixing effect is poor. The use of single-stage fixed blades makes it difficult to meet the mixing requirements of high-viscosity base oils and low-viscosity additives, easily leading to stratification, large local concentration deviations, and affecting product performance stability. Second, temperature control accuracy is insufficient. Reliance on single-jacket heating results in low heat exchange efficiency and large temperature fluctuations, failing to meet the dissolution temperature requirements of heat-sensitive additives. Third, there is a lack of effective oxidation protection measures. Under normal pressure operation, base oils are easily oxidized and deteriorated upon contact with air, shortening product shelf life. Fourth, the structure and function are limited, making it difficult to integrate functions such as vacuum degassing, nitrogen protection, and precise metering. This results in low switching efficiency and high cleaning residue rates when adapting to multiple formulations.

[0003] In existing technologies, some blending vessels attempt to improve performance by modifying the stirring structure or adding heat exchange components, but limitations remain: for example, the stirring blade angle is fixed, making it impossible to adjust the flow field according to the material viscosity; the heat exchange system and stirring system have poor coordination, resulting in high energy consumption; and the sealing performance is insufficient, making it difficult to maintain a vacuum or inert gas environment. Therefore, there is an urgent need for a multifunctional blending vessel that integrates efficient stirring, precise temperature control, oxidation protection, and intelligent adaptation functions to overcome the technical bottlenecks of existing equipment. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a multifunctional lubricant mixing vessel. To achieve the above objectives, the technical solution adopted by this utility model is as follows: A multifunctional lubricant mixing vessel includes: a vessel body, a drive mechanism fixedly disposed on the upper part of the vessel body, and a stirring device built into and suspended inside the vessel body; The outer side of the vessel body is fitted with a jacket, a first cooling water interface is fixedly installed on the upper side of the jacket, a second cooling water interface is fixedly installed on the bottom of the jacket, and several suspension lugs are fixedly arranged in a circular array on the outer side wall of the jacket. The inside of the vessel is fixedly equipped with heat exchange tubes. The inlet end of the heat exchange tubes passes through the bottom of the vessel and the bottom of the jacket, and the outlet end of the heat exchange tubes passes through the upper part of the vessel. The upper part of the vessel is fixedly equipped with a feed inlet, a process interface, a balance vent inside the vessel, and several lifting lugs, while the bottom of the vessel is fixedly equipped with a discharge interface. The stirring device includes: a rotating shaft, an upper bearing assembly fixedly sleeved on the upper part of the rotating shaft, several adjustable bolt clamps detachably arranged from top to bottom along the rotating shaft, two blades fixedly arranged on opposite sides of the adjustable bolt clamps, and a lower bearing assembly with clearance fit to the bottom of the rotating shaft. Among them, the blades with the same tilt angle in the upper adjustable bolt holder and the lower adjustable bolt holder are not set on the same side; The lower bearing assembly is embedded in the upper part of the lotus bearing base, the upper part of the rotating shaft is fixedly connected to the output shaft of the drive mechanism, the bearing assembly is fixedly set in the upper part of the vessel body, and the bottom of the lotus bearing base is fixedly set in the bottom wall inside the vessel body.

[0005] Furthermore, a liquid level alarm sensor, a maintenance manhole, an LED viewing hole, and a screw-on flat panel sight glass are fixedly installed on the upper part of the vessel body, and a static pressure sensor and a temperature sensor are fixedly installed on the bottom of the vessel body. The sensing ends of the liquid level alarm sensor, the static pressure sensor, and the temperature sensor are fixedly installed inside the vessel.

[0006] Furthermore, a weighing sensor is fixedly installed at the bottom of the suspension lug.

[0007] Furthermore, the drive mechanism includes: a base, a variable frequency drive motor, a reducer, and a coupling; The output end of the variable frequency drive motor is fixedly connected to the input end of the reducer. The coupling is fixedly installed in the machine base, the reducer is fixedly installed on the upper part of the machine base, and the upper part of the rotating shaft is fixedly connected to the output end of the reducer through the coupling.

[0008] Furthermore, there are three adjustable bolt holders, and the blade tilt angle is 45° to -30°.

[0009] Furthermore, the upper bearing assembly includes: a bushing, a roller bearing, a shaft seal, and a lock nut; The bushing has an annular protrusion fixedly installed on the upper part of the vessel body, the bushing is sleeved on the upper part of the rotating shaft, the roller bearing is embedded in the upper part of the bushing, the outer ring of the roller bearing is fixedly connected to the bushing, the inner ring of the roller bearing is clearance-fitted to the upper part of the rotating shaft, the shaft seal is fixedly installed in the bushing, and the lock nut is threadedly connected to the upper part of the bushing.

[0010] Furthermore, the top of the lotus bearing base has a central bearing cavity, the lower bearing assembly is embedded in the central bearing cavity, and the lotus bearing base has several arc-shaped notches along its circumference and several round holes along its thickness direction.

[0011] Furthermore, the heat exchange medium in the heat exchange tube is heat transfer oil.

[0012] Furthermore, the lower bearing assembly is a tapered roller thrust bearing.

[0013] Furthermore, the shaft seal is a bidirectional pressure-resistant shaft seal, the locking nut is a crescent-shaped locking nut, and the roller bearing is a cylindrical roller bearing.

[0014] The present invention adopts the above technical solution and has the following technical effects compared with the prior art: This invention utilizes a multi-layered, adjustable-angle blade design to create three-dimensional convection stirring, effectively solving the problem of uneven mixing of high-viscosity materials. The dual heat exchange structure of the jacket and heat exchange tubes enables precise temperature control, meeting the dissolution requirements of different additives. The process interface integrates vacuum degassing and nitrogen purging protection functions, reducing the risk of oxidation and deterioration. Multiple sensors combined with frequency conversion drive enable full-process parameter monitoring, making it suitable for the efficient production of multi-formulation, high-performance lubricants. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the orthogonal triaxial projection structure of this utility model; Figure 2 This is a front structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is an enlarged structural diagram of region A of this utility model; Figure 5 This is a top view of the structure of this utility model; Figure 6 This is a bottom-view structural diagram of the present invention; Figure 7 This is an enlarged structural diagram of region B of this utility model; Figure 8 This is a schematic diagram of the shaft side structure of the stirring device in this utility model; Figure 9 This is an enlarged structural diagram of region C of the stirring device in this utility model; Figure 10 This is a simplified structural diagram of the stirring device in this utility model from the front view. Figure 11 This is a cross-sectional structural diagram of the stirring device in this utility model; Figure 12 This is a schematic diagram of the axial structure of the heat exchange tube in this utility model; Figure 13 This is a schematic diagram of the structure of the roller bearing, the lower bearing assembly, and the shaft seal in this utility model; The reference numerals in the attached figures are: 1. Vessel body; 11. Heat exchanger tube; 111. Inlet end; 112. Outlet end; 12. Jacket; 121. First cooling water interface; 122. Second cooling water interface; 13. Feed inlet; 14. Process interface; 15. Internal balance vent; 16. Lifting lug; 17. Discharge interface; 18. Liquid level alarm sensor; 19. Manhole; 20. LED viewing hole; 21. Screw-on flat viewing mirror; 22. Static pressure sensor; 23. Temperature sensor 24. Sensor; 25. Base; 26. Variable frequency drive motor; 27. Reducer; 28. Coupling; 3. Suspension lug; 3. Stirring device; 31. Rotating shaft; 32. Upper bearing assembly; 321. Bushing; 322. Roller bearing; 323. Shaft seal; 324. Locking nut; 33. Adjustable bolt holder; 34. Paddle blade; 35. Lower bearing assembly; 36. Lotus bearing base; 361. Arc-shaped notch; 362. Round hole; 171. Weighing sensor. Detailed Implementation

[0016] 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.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Example

[0019] This embodiment provides a multifunctional lubricant mixing vessel, including: a vessel body 1, a drive mechanism 2 fixedly disposed on the upper part of the vessel body 1, and a stirring device 3 built into and suspended inside the vessel body 1; The outer side of the vessel body 1 is fitted with a jacket 12. A first cooling water interface 121 is fixedly installed on the upper side of the jacket 12, and a second cooling water interface 122 is fixedly installed at the bottom. The temperature inside the vessel can be quickly adjusted through the dual circulation water path. Four suspension lugs 28 are fixedly installed in a circular array on the outer wall of the jacket 12. A weighing sensor 171 is fixedly installed at the bottom of each suspension lug 28, which can monitor the weight of the material inside the vessel in real time with an accuracy of ±0.5%, meeting the requirements of multiple distribution ratios.

[0020] The vessel body 1 is equipped with a heat exchange tube 11. The heat exchange tube 11 is made of DN50 stainless steel coil and the inner wall is mirror polished. The heat exchange medium is heat transfer oil. The inlet end 111 passes through the bottom of the vessel body 1 and the bottom of the jacket 12 and is connected to the heat transfer oil supply system. The outlet end 112 passes through the upper part of the vessel body 1 and is connected to an external waste heat recovery device. The heat exchange efficiency is 30% higher than that of traditional equipment.

[0021] The upper part of the vessel body 1 is fixedly equipped with a feed inlet 13, a process interface 14, an internal balance vent 15, and four lifting lugs 16. The feed inlet 13 adopts an eccentric jet design to prevent the liquid flow from directly hitting the stirring shaft. The process interface 14 can be connected to a vacuum unit and a nitrogen cylinder group to realize rapid switching between vacuum degassing (ultimate vacuum degree -0.099MPa) and nitrogen purging protection (purity ≥99.99%). The internal balance vent 15, in conjunction with a static pressure sensor 22, maintains the pressure inside the vessel at a stable level of 5~10kPa. The discharge interface 17, fixedly set at the bottom, is equipped with a pneumatic ball valve with an opening and closing time of ≤1s to ensure rapid discharge of high-viscosity materials.

[0022] The upper part of the vessel body 1 is also fixedly equipped with a liquid level alarm sensor 18, a maintenance manhole 19, an LED viewing hole 20 (24V LED spotlight), and a screw-on flat panel sight glass 21. The bottom is fixedly equipped with a static pressure sensor 22 and a temperature sensor 23. The sensing ends of each sensor extend into the interior of the vessel body 1 to provide real-time feedback on material liquid level, pressure, and temperature parameters, providing data support for intelligent control.

[0023] The drive mechanism 2 includes: a base 24, a variable frequency drive motor 25, a reducer 26, and a coupling 27. The output end of the variable frequency drive motor 25 is fixedly connected to the input end of the reducer 26. The coupling 27 is fixedly installed in the base 24. The reducer 26 is fixedly installed on the upper part of the base 24. The upper part of the rotating shaft 31 is fixedly connected to the output end of the reducer 26 through the coupling 27. The stirring speed (10~150 rpm) can be automatically adjusted according to the viscosity of the material.

[0024] The stirring device 3 includes: a rotating shaft 31, an upper bearing assembly 32 fixedly sleeved on the upper part of the rotating shaft 31, three adjustable bolt holders 33 detachably arranged from top to bottom along the rotating shaft 31, two blades 34 fixedly arranged on opposite sides of the adjustable bolt holders 33, and a lower bearing assembly 35 clearance-fitted to the bottom of the rotating shaft 31; wherein, the blades 34 with the same inclination angle in the upper adjustable bolt holders 33 and the lower adjustable bolt holders 33 are not located on the same side; The specific layout is as follows: three adjustable bolt clamps 33 correspond to the first, second, and third heights of the rotating shaft 31, respectively. The blades on both sides of the adjustable bolt clamp 33 at the first height are overflow layer blades, with the overflow layer blades 34 having an inclination angle of 45° for the first blade 34 and an inclination angle of -45° for the second blade 34. The coordinated inclination angles generate an upward axial thrust, while simultaneously guiding surrounding materials to replenish the thrust area, forming a continuous overflow circulation in the upper part of the vessel, effectively preventing high-viscosity additives from forming a floating layer on the liquid surface. The blades on both sides of the adjustable bolt clamp 33 at the second height are stratosphere blades, with the stratosphere blades 34 having an inclination angle of -45° for the third blade 34. The fourth blade 34 has an inclination angle of 45°. The reverse inclination design generates a horizontal vortex in the middle layer of the vessel, which enhances the shearing and dispersion of high-viscosity base oil and additive agglomerates, breaking the "rotation dead zone" formed by unidirectional flow. The blades on both sides of the adjustable bolt holder 33 at the third height are convective blades. The convective blades 34 are the fifth blade 34 with an inclination angle of -45° and the sixth blade 34 with an inclination angle of 45°. Together with the arc-shaped notch 361 and the round hole 362 of the lotus bearing base 36, a vertical convection circulation of downward pushing and upward lifting is formed. This not only washes the corners of the bottom of the vessel to reduce material deposition, but also pushes the bottom material to the middle and upper parts to participate in mixing, achieving efficient exchange of materials throughout the vessel.

[0025] The upper bearing assembly 32 includes: a bushing 321, a roller bearing 322 (cylindrical roller bearing), a shaft seal 323 (bidirectional pressure-resistant shaft seal), and a locking nut 324 (crescent-shaped locking nut). The bushing 321 is fixedly disposed on the upper part of the vessel body 1 with an annular protrusion. The bushing 321 is sleeved on the upper part of the rotating shaft 31. The roller bearing 322 is embedded in the upper part of the bushing 321, with its outer ring fixedly connected to the bushing 321 and its inner ring clearance-fitted to the rotating shaft 31. The shaft seal 323 is fixedly disposed in the bushing 321, with a leakage rate ≤1×10⁻. 6 Pa・m³ / s ensures a stable vacuum environment; the locking nut 324 is threaded onto the upper part of the bushing 321, enhancing sealing reliability.

[0026] The lower bearing assembly 35 is a tapered roller thrust bearing, which is embedded in the central bearing cavity of the lotus bearing base 36. The bottom of the lotus bearing base 36 is fixedly installed in the bottom wall inside the vessel body 1. Several arc-shaped notches 361 are opened along its circumference, and several round holes 362 are opened along its thickness direction. This can reduce material deposition and, together with the liquid flow formed by stirring, reduce the residue rate at the bottom of the tank to below 0.1%.

[0027] In use, base oil is first added through inlet 13. Feeding stops after the weighing sensor 171 detects that the target has been met. The heat transfer oil system of heat exchange tube 11 is started to heat the base oil to the set temperature. Temperature sensor 23 monitors the temperature in real time and the heating power is controlled by the PLC system. Then, the dissolved gas in the base oil is removed by vacuuming through process interface 14. Additives are then added, and drive mechanism 2 is turned on. Uniform mixing is achieved through the three-dimensional flow field formed by three layers of alternating tilt blades 34. During the mixing process, nitrogen is introduced through process interface 14 to prevent oxidation. After completion, the finished product is discharged through outlet 17.

[0028] In summary, this invention utilizes a multi-layered, adjustable-angle blade design to create three-dimensional convection stirring, effectively solving the problem of uneven mixing of high-viscosity materials. The dual heat exchange structure of the jacket and heat exchange tubes enables precise temperature control, meeting the dissolution requirements of different additives. The process interface integrates vacuum degassing and nitrogen purging protection functions, reducing the risk of oxidation and deterioration. The combination of multiple sensors and frequency converters enables full-process parameter monitoring, making it suitable for the efficient production of multi-formulation, high-performance lubricants.

[0029] The above description of this utility model is merely a preferred embodiment of this utility model and does not limit the implementation method and protection scope of this utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of this utility model should be included within the protection scope of this utility model.

Claims

1. A multifunctional lubricant mixing vessel, characterized in that, include: The vessel body (1), the drive mechanism (2) fixedly disposed on the upper part of the vessel body (1), and the stirring device (3) built into and suspended inside the vessel body (1). The outer side of the vessel body (1) is fitted with a jacket (12), a first cooling water interface (121) is fixedly provided on the upper side of the jacket (12), a second cooling water interface (122) is fixedly provided on the bottom of the jacket (12), and a number of suspension lugs (28) are fixedly arranged in a circular array on the outer side wall of the jacket (12). A heat exchange tube (11) is fixedly installed inside the vessel body (1). The inlet end (111) of the heat exchange tube (11) passes through the bottom of the vessel body (1) and the bottom of the jacket (12), and the outlet end (112) of the heat exchange tube (11) passes through the upper part of the vessel body (1). The upper part of the vessel body (1) is fixedly provided with a feed inlet (13), a process interface (14), a balance breathing port (15) inside the vessel, and several lifting lugs (16), and the bottom of the vessel body (1) is fixedly provided with a discharge interface (17). The stirring device (3) includes: a rotating shaft (31), an upper bearing assembly (32) fixedly sleeved on the upper part of the rotating shaft (31), a plurality of adjustable bolt holders (33) detachably arranged from top to bottom along the rotating shaft (31), two blades (34) fixedly arranged on opposite sides of the adjustable bolt holders (33), and a lower bearing assembly (35) clearance-fitted to the bottom of the rotating shaft (31). Among them, the blades (34) with the same inclination angle in the upper adjustable bolt holder (33) and the lower adjustable bolt holder (33) are not located on the same side; The lower bearing assembly (35) is embedded in the upper part of the lotus bearing base (36), the upper part of the rotating shaft (31) is fixedly connected to the output shaft of the drive mechanism (2), the bearing assembly (32) is fixedly set in the upper part of the vessel body (1), and the bottom of the lotus bearing base (36) is fixedly set in the bottom wall inside the vessel body (1).

2. The multifunctional lubricant mixing vessel according to claim 1, characterized in that, The upper part of the vessel body (1) is also fixedly provided with a liquid level alarm sensor (18), a maintenance manhole (19), an LED viewing hole (20), and a screw-on flat panel viewing mirror (21). The bottom of the vessel body (1) is also fixedly provided with a static pressure sensor (22) and a temperature sensor (23). The sensing end of the liquid level alarm sensor (18), the static pressure sensor (22), and the sensing end of the temperature sensor (23) are fixedly disposed inside the vessel body (1).

3. The multifunctional lubricant mixing vessel according to claim 1, characterized in that, A weighing sensor (171) is fixedly installed at the bottom of the suspension lug (28).

4. The multifunctional lubricant mixing vessel according to claim 1, characterized in that, The drive mechanism (2) includes: a base (24), a variable frequency drive motor (25), a reducer (26), and a coupling (27); The output end of the variable frequency drive motor (25) is fixedly connected to the input end of the reducer (26), the coupling (27) is fixedly disposed in the base (24), the reducer (26) is fixedly disposed on the upper part of the base (24), and the upper part of the rotating shaft (31) is fixedly connected to the output end of the reducer (26) through the coupling (27).

5. The multifunctional lubricant mixing vessel according to claim 1, characterized in that, There are 3 adjustable bolt holders (33), and the inclination angle of the blade (34) is 45°~-30°.

6. The multifunctional lubricant mixing vessel according to claim 1, characterized in that, The upper bearing assembly (32) includes: a bushing (321), a roller bearing (322), a shaft seal (323), and a lock nut (324). The bushing (321) is fixedly disposed on the upper part of the vessel body (1) with an annular protrusion. The bushing (321) is sleeved on the upper part of the rotating shaft (31). The roller bearing (322) is embedded in the upper part of the bushing (321). The outer ring of the roller bearing (322) is fixedly connected to the bushing (321). The inner ring of the roller bearing (322) is clearance-fitted to the upper part of the rotating shaft (31). The shaft seal (323) is fixedly disposed in the shaft seal (323). The locking nut (324) is threadedly connected to the upper part of the bushing (321).

7. The multifunctional lubricant mixing vessel according to claim 1, characterized in that, The top of the lotus bearing base (36) has a central bearing cavity, the lower bearing assembly (35) is embedded in the central bearing cavity, and the lotus bearing base (36) has a number of arc-shaped notches (361) along its circumference and a number of round holes (362) along its thickness direction.

8. The multifunctional lubricant mixing vessel according to claim 1, characterized in that, The heat exchange medium of the heat exchange tube (11) is heat transfer oil.

9. A multifunctional lubricant mixing vessel according to claim 1, characterized in that, The lower bearing assembly (35) is a tapered roller thrust bearing.

10. A multifunctional lubricant mixing vessel according to claim 6, characterized in that, The shaft seal (323) is a bidirectional pressure-resistant shaft seal, the locking nut (324) is a crescent locking nut, and the roller bearing (322) is a cylindrical roller bearing.

Images