Lubricating oil blending and mixing equipment

Abstract

The utility model relates to the technical field of lubricating oil production, in particular to lubricating oil blending and mixing equipment which comprises a platform, blending tanks are fixedly connected to the left side and the right side of the top of the platform respectively, a tail end mounting seat of the left blending tank is fixedly connected with one end of a first oil pipe, and the other end of the first oil pipe is fixedly connected with a head end mounting seat of the right blending tank. The tail end mounting seat of the right side blending tank is fixedly connected with one end of a second oil pipe, the other end of the second oil pipe is fixedly connected with the head end mounting seat of the left side blending tank, the first oil pipe, the second oil pipe and the interiors of the two blending tanks are communicated, a premixing structure is arranged between the two blending tanks, and feeding units are arranged on the left side wall and the right side wall of the premixing structure respectively. A circulating pump structure is arranged in the middle of the first oil pipe, vortex blade structures are arranged in inner cavities of the two blending tanks, and discharging units are arranged at the bottoms of the two blending tanks. The lubricating oil blending device has the beneficial effects that the blending effect of lubricating oil can be greatly improved, and the cost and the energy loss are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lubricating oil production, in particular to a lubricating oil blending and mixing device. Background Art

[0002] As industrial lubricants develop towards long life, energy saving and environmental protection, new requirements are put forward for the performance of lubricants such as anti-oxidation, oxidation stability, viscosity index and volatility. In order to achieve the production of high-quality lubricants, lubricant manufacturers generally select one or more lubricant base oils according to the characteristics and properties of lubricant products, add a variety of additives, and process them in specific blending and mixing equipment through a certain blending process to obtain qualified lubricant products, namely blended oils.

[0003] For example, in the patent document of patent publication number CN217746895U, a lubricating oil constant temperature blending device is disclosed, which includes a base, a bottom column, a bottom block and a fixed box, the bottom column is fixedly arranged at the bottom of the base, the bottom block is fixedly arranged at the top of the base, the fixed box is fixedly arranged at the top of the bottom block, and also includes a top cover, a heating mechanism, a stirring mechanism, a cleaning mechanism and a transmission mechanism, the top cover is arranged at the top of the fixed box, the heating mechanism is arranged at the inner middle end of the fixed box, the bottom of the fixed box is provided with a discharge pipe, the stirring mechanism is arranged at the middle part of the top cover, the cleaning mechanism is arranged in the fixed box, and the transmission mechanism is arranged at the bottom of the top cover. According to the prior art document, it can be seen that the device can stir and blend lubricating oil by a stirring mechanism. But the shortcoming of the device is that the number and size of the stirring blades are difficult to grasp, the number of the stirring blades is too few and its size is too small, which is easy to cause low stirring efficiency and poor blending quality, and the number of the stirring blades is too many and the size is too large, which is easy to increase the load of the stirring motor, greatly increasing the consumption of energy.

[0004] To this end, the utility model optimizes and improves the lubricating oil blending method and product quality problems in the prior art, and hereby proposes a lubricating oil blending and mixing equipment that achieves high efficiency and energy saving through pump circulation, so as to better solve the problems in the prior art. Utility Model Content

[0005] The utility model is to solve one of the above technical problems, and the technical solution adopted is: a lubricating oil blending and mixing equipment, including a platform, and cylindrical blending tanks are respectively fixedly connected to the left and right sides of the top of the platform, and the two blending tanks are both arranged horizontally, and the tail end mounting seat of the blending tank on the left is fixedly connected to one end of a first oil pipe, and the other end of the first oil pipe is fixedly connected to the head end mounting seat of the blending tank on the right, and the tail end mounting seat of the blending tank on the right is fixedly connected to one end of a second oil pipe, and the other end of the second oil pipe is fixedly connected to the head end mounting seat of the blending tank on the left. The head end mounting seat is fixedly connected, the first oil pipe, the second oil pipe and the interior of the two blending tanks are connected and form a closed cavity, a premixing structure is fixedly provided in the space between the two blending tanks, and feeding units are respectively provided on the left and right side walls of the premixing structure, and the lower ends of the two feeding units are respectively installed on the top of the blending tank on the corresponding side, a circulating pump structure is fixedly provided in the middle of the pipeline of the first oil pipe, a vortex blade structure is provided in the inner cavity of the two blending tanks, and a discharging unit is provided at the bottom of the two blending tanks.

[0006] In any of the above schemes, preferably, the circulating pump structure includes a first fixed frame, the bottom of the first fixed frame is fixedly connected to the corresponding position on the top of the platform, an oil pump is fixedly installed on the top surface of the first fixed frame, and the oil pump is arranged in the middle of the first oil pipe and the two are internally connected.

[0007] In any of the above schemes, preferably, the premixing structure includes a second fixing frame, the bottom of the second fixing frame is fixedly connected to the corresponding position on the top of the platform, a premixing tank is fixedly installed on the top surface of the second fixing frame, a plurality of feed ports are provided on the top surface of the premixing tank, the upper ends of the two feed units are respectively fixedly connected to the left and right side walls of the lower part of the premixing tank, and the interiors of the two feed units are communicated with the inner cavity of the premixing tank.

[0008] In any of the above schemes, it is preferred that the feeding unit includes an oil inlet pipe, the upper end of the oil inlet pipe is fixedly connected to the side wall of the lower part of the premixing tank and the two are internally connected, the lower end of the oil inlet pipe is fixedly connected to the top of the blending tank at a corresponding position and the two are internally connected, a first solenoid valve is fixedly provided at the upper end of the oil inlet pipe and the two are internally connected, and the first solenoid valve is installed at a corresponding position on the top of the second fixing frame.

[0009] In any of the above schemes, it is preferred that the discharge unit includes an oil outlet pipe, the inner end of the oil outlet pipe is fixedly connected to the bottom of the blending tank at a corresponding position and the two are internally connected, a second solenoid valve is fixedly provided at the inner end of the oil outlet pipe and the two are internally connected, and the second solenoid valve is fixedly connected at a corresponding position on the top of the platform.

[0010] In any of the above schemes, preferably, the vortex blade structure includes a plurality of vortex blade units, and each of the vortex blade units is fixedly installed in the inner cavity of the blending tank at intervals in sequence along the axial direction of the blending tank;

[0011] The vortex blade unit includes an annular mounting plate, the circumferential outer side wall of the annular mounting plate is fitted on the inner wall of the blending tank and the two are fixedly connected, and also includes a columnar central fixing block, and a plurality of blades are arranged in sequence and spaced axially around the central fixing block, the inner end of each blade is obliquely fixedly connected to the circumferential outer side wall of the central fixing block, and the outer end of each blade is obliquely fixedly connected to the corresponding position of the circumferential inner side wall of the annular mounting plate.

[0012] In any of the above schemes, it is preferred that the two blending tanks are centrally symmetrically arranged.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model is provided with two blending tanks, which are connected by a first oil pipe and a second oil pipe to form a circulating oil circuit. Under the action of an oil pump, the lubricating oil is driven to circulate inside the oil circuit, thereby achieving the blending of the base oil and the additive, avoiding the situation in which the number and size of the stirring blades are difficult to control when the lubricating oil is blended by stirring.

[0015] 2. The utility model fixes a vortex blade unit composed of a plurality of blades inside the blending tank. Under the action of the vortex blade unit, the lubricating oil circulates in the oil circuit while performing vortex rotation. This not only greatly improves the blending effect of the lubricating oil, but also does not require power input from a motor to drive the rotation of the lubricating oil, thereby saving costs and energy losses.

[0016] 3. The utility model horizontally arranges two blending tanks on the left and right sides of the platform, so that the two blending tanks are located at the same height and the lubricating oil circulates on the horizontal plane, which can reduce the load imposed on the oil pump by the dead weight of the lubricating oil as much as possible and greatly reduce energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a top view of the blending and mixing device of the utility model.

[0019] Figure 2It is a front view of the blending and mixing device of the utility model.

[0020] Figure 3 for Figure 1 Section view at line AA.

[0021] Figure 4 It is a cross-sectional view of the blending tank of the utility model in a side view state.

[0022] Figure 5 for Figure 4 Section view at the midline BB.

[0023] In the figure, 1. platform; 2. blending tank; 3. first oil pipe; 4. second oil pipe; 5. first fixed frame; 6. oil pump; 7. second fixed frame; 8. premixing tank; 9. feed port; 10. oil inlet pipe; 11. first solenoid valve; 12. oil outlet pipe; 13. second solenoid valve; 14. annular mounting plate; 15. center fixing block; 16. blades; 2.1. head end mounting seat; 2.2. tail end mounting seat. DETAILED DESCRIPTION

[0024] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. Figure 1-Figure 5 as shown in .

[0025] A lubricating oil blending and mixing device, comprising a platform 1, wherein a cylindrical blending tank 2 is fixedly connected to the left and right sides of the top of the platform 1, respectively. The two blending tanks 2 are arranged horizontally, and the tail end mounting seat 2.2 of the blending tank 2 on the left is fixedly connected to one end of a first oil pipe 3, and the other end of the first oil pipe 3 is fixedly connected to the head end mounting seat 2.1 of the blending tank 2 on the right, and the tail end mounting seat 2.2 of the blending tank 2 on the right is fixedly connected to one end of a second oil pipe 4, and the other end of the second oil pipe 4 is fixedly connected to the head end mounting seat 2.1 of the blending tank 2 on the left. The first oil pipe 3, the second oil pipe 4 and the interiors of the two blending tanks 2 are connected and form a closed cavity. A premixing structure is fixedly provided in the space between the two blending tanks 2. Feeding units are respectively provided on the left and right side walls of the premixing structure. The lower ends of the two feeding units are respectively installed on the tops of the blending tanks 2 on the corresponding sides. A circulating pump structure is fixedly provided in the middle of the pipeline of the first oil pipe 3. Vortex blade structures are provided in the inner cavities of the two blending tanks 2. Discharging units are provided at the bottoms of the two blending tanks 2.

[0026] The utility model blending and mixing equipment comprises a horizontally fixed platform 1, and a cylindrical blending tank 2 is fixedly installed on the left and right sides of the top surface of the platform 1, and the blending tank 2 is horizontally arranged, that is, its axis is arranged parallel to the top surface of the platform 1. The overall shape of the blending tank 2 is columnar, and a head end mounting seat 2.1 is integrally formed in the middle of its head end surface, and a tail end mounting seat 2.2 is integrally formed in the middle of its tail end surface. A through hole is opened at the position of the head end mounting seat 2.1 for lubricating oil to enter the inside of the blending tank 2, and a through hole is opened at the position of the tail end mounting seat 2.2 for lubricating oil inside the blending tank 2 to flow out. The left end of the first oil pipe 3 is fixedly connected to the tail end mounting seat 2.2 of the left blending tank 2, and the internal communication between the two is realized through the through hole at this position. At the same time, the right end of the first oil pipe 3 is fixedly connected to the head end mounting seat 2.1 of the right blending tank 2, and the internal communication between the two is realized through the through hole at this position. The right end of the second oil pipe 4 is fixedly connected to the tail end mounting seat 2.2 of the right blending tank 2 and internal communication between the two is achieved through the through hole at this position. The left end of the second oil pipe 4 is fixedly connected to the head end mounting seat 2.1 of the left blending tank 2 and internal communication between the two is achieved through the through hole at this position.

[0027] A premixing structure is fixedly installed on a platform in the space between the first oil pipe 3, the second oil pipe 4 and the two blending tanks 2. The premixing structure is used to premix one or more base oils and additives in a certain proportion. The premixing structure supplies oil to the corresponding blending tank 2 through a feeding unit. A circulating pump structure is fixedly provided in the middle of the first oil pipe 3. Under the action of the circulating pump structure, the premixed lubricating oil flows continuously in the circulation direction of the blending tank 2 on the left, the first oil pipe 3, the blending tank 2 on the right, the second oil pipe 4 and the blending tank 2 on the left. A vortex blade structure is fixedly provided in the inner cavity of the two blending tanks 2. Through the vortex blade structure, the lubricating oil realizes its own vortex while circulating, thereby completing an efficient lubricating oil blending process and obtaining high-quality finished lubricating oil.

[0028] In any of the above schemes, it is preferred that the circulating pump structure includes a first fixed frame 5, the bottom of the first fixed frame 5 is fixedly connected to the corresponding position on the top of the platform 1, and an oil pump 6 is fixedly installed on the top surface of the first fixed frame 5. The oil pump 6 is arranged in the middle of the first oil pipe 3 and the two are internally connected.

[0029] The bottom of the first fixing frame 5 is welded to the top of the platform 1, and an oil pump 6 is fixedly installed on the top of the first fixing frame 5 by bolts. The oil pump 6 and the through holes at the corresponding ends of the two blending tanks 2 are located at the same height position, so that the bending of the oil pipe can be avoided as much as possible, saving the cost of the oil pipe material. Under the action of the oil pump 6, the lubricating oil can circulate between the two blending tanks 2.

[0030] In any of the above schemes, it is preferred that the premixing structure includes a second fixing frame 7, the bottom of the second fixing frame 7 is fixedly connected to the corresponding position on the top of the platform 1, a premixing tank 8 is fixedly installed on the top surface of the second fixing frame 7, a plurality of feed ports 9 are provided on the top surface of the premixing tank 8, the upper ends of the two feed units are respectively fixedly connected to the left and right side walls of the lower part of the premixing tank 8, and the interiors of the two feed units are communicated with the inner cavity of the premixing tank 8.

[0031] The bottom of the second fixing frame 7 is welded to the top surface of the platform 1, and a premixing tank 8 is fixedly installed on the top surface of the second fixing frame 7. The bottom of the premixing tank 8 is higher than the top of the blending tank 2. The interior of the premixing tank 8 is hollow, and feed ports 9 are respectively provided on the left and right sides of the top. The left and right side walls of the bottom of the premixing tank 8 are respectively fixedly connected to the upper end of a feed unit, and the lower ends of the two feed units are then fixedly connected to the top of the blending tank 2 on the corresponding side. According to the volume sizes of the premixing tank 8 and the two blending tanks 2, and taking into account the inner cavity volumes of the corresponding pipelines, a certain amount of base oil and additives are injected into the inner cavity of the premixing tank 8 according to a proportion through the feed port 9 to obtain preliminary premixed oil, and then the premixed oil enters the corresponding blending tank 2 through the feed units on both sides respectively, while ensuring that the premixed oil can be injected without any residue and just fills the two blending tanks 2 and the first oil pipe 3 and the second oil pipe 4. This not only ensures that the proportion of the base oil and the additive in the blending process meets the quality requirements, but also avoids the generation of bubbles that are easily affected by air during the blending process.

[0032] In any of the above schemes, it is preferred that the feeding unit includes an oil inlet pipe 10, the upper end of the oil inlet pipe 10 is fixedly connected to the side wall of the lower part of the premixing tank 8 and the two are internally connected, the lower end of the oil inlet pipe 10 is fixedly connected to the top of the blending tank 2 at a corresponding position and the two are internally connected, and a first solenoid valve 11 is fixedly provided at the upper end of the oil inlet pipe 10 and the two are internally connected, and the first solenoid valve 11 is installed at a corresponding position on the top of the second fixed frame 7.

[0033] The feed unit includes an oil inlet pipe 10, the upper end of which is fixedly mounted on the outer side wall of the lower part of the premixing tank 8, the two are internally connected, and the bottom of the inner wall of the upper end of the oil inlet pipe 10 is flush with the bottom surface of the inner cavity of the premixing tank 8, so that the premixed oil in the premixing tank 8 can be completely injected into the corresponding blending tank 2 through the oil inlet pipe 10. A first solenoid valve 11 is fixedly provided at one end of the oil inlet pipe 10 close to the premixing tank 8, and the opening and closing state of the oil inlet pipeline between the premixing tank 8 and the blending tank 2 is controlled by the first solenoid valve 11.

[0034] In any of the above schemes, it is preferred that the discharging unit includes an oil outlet pipe 12, the inner end of the oil outlet pipe 12 is fixedly connected to the bottom of the blending tank 2 at a corresponding position and the two are internally connected, and a second solenoid valve 13 is fixedly provided at the inner end of the oil outlet pipe 12 and the two are internally connected, and the second solenoid valve 13 is fixedly connected at a corresponding position on the top of the platform 1.

[0035] The discharging unit includes an oil outlet pipe 12, the inner end of which is fixedly mounted on the bottom outer wall of the corresponding blending tank 2, and the two are internally connected, and the bottom of the inner pipe wall of the inner end pipe opening of the oil outlet pipe 12 is kept flush with the bottommost position of the circumferential inner wall of the blending tank 2, so that the finished lubricating oil after blending can be completely discharged from the blending tank 2 through the oil outlet pipe 12. A second solenoid valve 13 is fixedly provided at the inner end of the oil outlet pipe 12, and the second solenoid valve 13 is used to control the opening and closing state of the oil pipeline of the oil outlet pipe 12.

[0036] In any of the above schemes, preferably, the vortex blade structure includes a plurality of vortex blade units, and each of the vortex blade units is fixedly installed in the inner cavity of the blending tank 2 at intervals in sequence along the axial direction of the blending tank 2;

[0037] The vortex blade unit includes an annular mounting plate 14, the circumferential outer side wall of the annular mounting plate 14 is fitted on the inner wall of the blending tank 2 and the two are fixedly connected, and also includes a columnar central fixing block 15, and a plurality of blades 16 are arranged in sequence and spaced axially around the central fixing block 15, the inner end of each blade 16 is obliquely fixedly connected to the circumferential outer side wall of the central fixing block 15, and the outer end of each blade 16 is obliquely fixedly connected to the corresponding position of the circumferential inner side wall of the annular mounting plate 14.

[0038] The vortex blade structure includes a plurality of vortex blade units. The two ends of the blending tank 2 are hemispherical structures, which are connected to the columnar structure in the middle by welding. When manufacturing the blending tank 2, the vortex blade units are first fixedly installed in the middle columnar structure of the blending tank 2 at intervals along the axial direction of the blending tank 2, and then the hemispherical structures at both ends are welded to the corresponding ends of the middle columnar structure.

[0039] The vortex blade unit includes an annular mounting plate 14, the circumferential outer wall of the annular mounting plate 14 is welded to the inner wall of the blending tank 2, and the vortex blade unit also includes a central fixing block 15 and a plurality of blades 16. The central fixing block 15 is a columnar structure and is located at the exact center of the annular mounting plate 14. The blades 16 are evenly fixed and arranged in sequence at a certain interval in the axial direction of the central fixing block 15. The inner end of the blade 16 is welded to the circumferential outer wall of the central fixing block 15 at a certain inclination, and the outer end of the blade 16 is welded to the circumferential inner wall of the annular mounting plate 14 at a certain inclination. In this way, the blade 16 can be tilted relative to the overall structure of the vortex blade unit, and the lubricating oil circulates under the action of the oil pump. At the same time, under the joint action of the blades 16, the vortex rotation of the lubricating oil itself is realized, thereby improving the blending effect.

[0040] In any of the above schemes, it is preferred that the two blending tanks 2 are centrally symmetrically arranged. The head end and the tail end of the left and right blending tanks 2 are centrally symmetrical, so that the layout of the device is more reasonable and the flow of lubricating oil is smoother.

[0041] Specific working principle:

[0042] Before the blending operation of the lubricating oil is performed, the operator first injects a certain amount of base oil and a certain amount of additives into the inner cavity of the premixing tank 8 through the feed port 9 according to the ratio requirements, so as to obtain the premixed oil. According to the volume comparison between the tank bodies, when the amount of the premixed oil can just fill the first oil pipe 3, the second oil pipe 4 and the two blending tanks 2, the operator stops adding the base oil and the additive, and then opens the first solenoid valves 11 on the left and right sides, and the premixed oil is respectively injected into the inner cavity of the corresponding blending tank 2 through the two oil inlet pipes 10 until the premixed oil is completely injected, and then closes the first solenoid valve 11, and then starts the oil pump 6. Under the action of the oil pump 6, the lubricating oil to be blended circulates between the blending tank 2 on the left, the first oil pipe 3, the second oil pipe 4 and the blending tank 2 on the right. At the same time, under the joint action of the blades 16 in the inner cavity of the blending tank 2, the lubricating oil to be blended vortexes while circulating, thereby achieving an efficient blending effect and obtaining high-quality finished lubricating oil. After the blending is completed, the second solenoid valve 13 is opened, and the blended lubricating oil is taken out through the oil outlet pipe 12 for packaging or direct use.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0044] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A lubricating oil blending and mixing device, characterized in that: The invention comprises a platform (1), wherein a cylindrical blending tank (2) is fixedly connected to the left and right sides of the top of the platform (1), respectively. The two blending tanks (2) are arranged horizontally. The tail end mounting seat (2.2) of the blending tank (2) on the left is fixedly connected to one end of a first oil pipe (3), and the other end of the first oil pipe (3) is fixedly connected to the head end mounting seat (2.1) of the blending tank (2) on the right. The tail end mounting seat (2.2) of the blending tank (2) on the right is fixedly connected to one end of a second oil pipe (4), and the other end of the second oil pipe (4) is fixedly connected to the head end mounting seat (2.1) of the blending tank (2) on the left. 1) fixedly connected, the first oil pipe (3), the second oil pipe (4) and the interiors of the two blending tanks (2) are connected and form a closed cavity, a premixing structure is fixedly provided in the space between the two blending tanks (2), a feeding unit is respectively provided on the left and right side walls of the premixing structure, the lower ends of the two feeding units are respectively installed on the top of the blending tank (2) on the corresponding side, a circulating pump structure is fixedly provided in the middle of the pipeline of the first oil pipe (3), a vortex blade structure is provided in the inner cavity of the two blending tanks (2), and a discharge unit is provided at the bottom of the two blending tanks (2).

2. A lubricating oil blending and mixing device according to claim 1, characterized in that: The circulating pump structure comprises a first fixing frame (5), the bottom of the first fixing frame (5) being fixedly connected to a corresponding position on the top of the platform (1), an oil pump (6) being fixedly mounted on the top surface of the first fixing frame (5), the oil pump (6) being arranged in the middle of the first oil pipe (3) and the two being internally connected.

3. A lubricating oil blending and mixing device according to claim 2, characterized in that: The premixing structure comprises a second fixing frame (7), the bottom of the second fixing frame (7) being fixedly connected to a corresponding position on the top of the platform (1), a premixing tank (8) being fixedly mounted on the top surface of the second fixing frame (7), a plurality of feed ports (9) being provided on the top surface of the premixing tank (8), the upper ends of the two feed units being respectively fixedly connected to the left and right side walls of the lower part of the premixing tank (8), and the interiors of the two feed units being communicated with the inner cavity of the premixing tank (8).

4. A lubricating oil blending and mixing device according to claim 3, characterized in that: The feed unit comprises an oil inlet pipe (10), the upper end of the oil inlet pipe (10) being fixedly connected to the side wall of the lower part of the premixing tank (8) and the interiors of the two are connected, the lower end of the oil inlet pipe (10) being fixedly connected to the top of the blending tank (2) at a corresponding position and the interiors of the two are connected, a first solenoid valve (11) is fixedly provided at the upper end of the oil inlet pipe (10) and the interiors of the two are connected, and the first solenoid valve (11) is installed at a corresponding position on the top of the second fixing frame (7).

5. The lubricating oil blending and mixing equipment according to claim 4, characterized in that: The discharge unit comprises an oil discharge pipe (12), the inner end of the oil discharge pipe (12) is fixedly connected to the bottom of the blending tank (2) at a corresponding position and the two are internally connected, a second solenoid valve (13) is fixedly provided at the inner end of the oil discharge pipe (12) and the two are internally connected, and the second solenoid valve (13) is fixedly connected to the corresponding position of the top of the platform (1).

6. A lubricating oil blending and mixing device according to claim 5, characterized in that: The vortex blade structure comprises a plurality of vortex blade units, each of which is fixedly installed in the inner cavity of the blending tank (2) at intervals in sequence along the axial direction of the blending tank (2); The vortex blade unit comprises an annular mounting plate (14), the circumferential outer side wall of the annular mounting plate (14) being fitted on the inner side wall of the blending tank (2) and the two being fixedly connected, and further comprises a columnar central fixing block (15), a plurality of blades (16) being arranged in sequence and spaced apart in the axial direction around the central fixing block (15), the inner side end of each blade (16) being obliquely fixedly connected to the circumferential outer side wall of the central fixing block (15), and the outer side end of each blade (16) being obliquely fixedly connected to a corresponding position of the circumferential inner side wall of the annular mounting plate (14).

7. A lubricating oil blending and mixing device according to claim 6, characterized in that: The two blending tanks (2) are arranged in a centrally symmetrical manner.

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