A high-efficiency mixing equipment for petroleum product manufacturing

Abstract

This utility model relates to the field of petroleum product manufacturing, and in particular to a high-efficiency mixing device specifically for petroleum product manufacturing. It includes a tank and a mixing shaft. A heat exchange assembly is provided on the outer side of the tank. A tank cover is mounted on the tank via fasteners. The tank cover is equipped with a liquid inlet pipe and a buffer assembly. The buffer assembly is connected to a vacuum assembly. A servo motor is mounted on a motor frame on the upper surface of the tank cover, and a drive assembly is mounted on the output shaft end of the servo motor. The mixing shaft is mounted inside the tank via a fixing frame. A coupling assembly is mounted on the upper end of the mixing shaft, and a mixing assembly is mounted on the lower end. A scraping assembly and a turbine disperser are also mounted on the mixing shaft. This utility model integrates mixing, scraping, heat exchange, and vacuum functions. The mixing assembly uses arc-shaped sawtooth mixing blades, which form laminar or turbulent flow through irregular shapes, enhancing shear force and mixing effect, thereby improving the efficiency, mixing uniformity, and product quality of petroleum product processing.

Description

Technical Field

[0001] This utility model relates to the field of petroleum product manufacturing, and in particular to a high-efficiency mixing device specifically for petroleum product manufacturing. Background Technology

[0002] In the petroleum products manufacturing industry, mixing equipment is a key device for achieving the mixing, dispersion, and processing of raw materials, and is widely used in the production processes of products such as lubricating oil, fuel oil, and asphalt. Existing mixing equipment typically employs mechanical mixing devices, using mixing blades to mix raw materials, but this approach suffers from the following problems:

[0003] Limited mixing efficiency: Traditional mixing equipment often uses a single mixing blade, which is difficult to effectively handle high-viscosity petroleum products, resulting in uneven mixing and affecting product quality.

[0004] Tank wall adhesion problem: High-viscosity raw materials tend to adhere to the inner wall of the tank, causing material waste and cleaning difficulties, and reducing production efficiency;

[0005] Bubble interference: During the mixing process, air bubbles often get mixed into the raw materials, affecting the mixing effect and product performance. Traditional equipment lacks effective means to remove air bubbles.

[0006] Poor transmission sealing: Traditional mechanical transmission methods require penetration of the tank's sealing structure, which can easily lead to leakage, reducing equipment safety and service life.

[0007] Therefore, it is necessary to further improve the high-efficiency mixing equipment used in the manufacture of petroleum products. Utility Model Content

[0008] The technical problem to be solved by this utility model is to overcome the existing defects and provide a high-efficiency mixing equipment for petroleum product manufacturing. By integrating mixing, scraping, heat exchange and vacuum functions, it overcomes the shortcomings of traditional mixing equipment in terms of efficiency, cleanliness, temperature control and sealing, improves the efficiency of petroleum product processing and product quality, and can effectively solve the problems in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency mixing device for petroleum product manufacturing, comprising a tank and a mixing shaft;

[0010] A heat exchange assembly is provided on the outer side of the tank body. A tank cover is installed on the tank body by fasteners. An inlet pipe and a buffer assembly are provided on the tank cover. The buffer assembly is connected to a vacuum assembly. A servo motor is installed on a motor frame provided on the upper surface of the tank cover. A drive assembly is installed at the end of the output shaft of the servo motor.

[0011] The stirring shaft is installed inside the tank via a fixing bracket. A coupling assembly is installed at the upper end of the stirring shaft, and a stirring assembly is installed at the lower end of the stirring shaft. A scraping assembly and a turbine disperser are also installed on the stirring shaft.

[0012] Preferably, the vacuum assembly includes a first connecting pipe, a variable frequency vacuum pump, a buffer tank, and a second connecting pipe. The air inlet of the buffer tank is connected to the air outlet on the tank cover through the second connecting pipe, and the air inlet of the variable frequency vacuum pump is connected to the air outlet of the buffer tank through the first connecting pipe.

[0013] Preferably, the heat exchange assembly includes heat exchange fins and a heat exchange jacket, the heat exchange fins and the heat exchange jacket are disposed on the outer side of the tank body, and the heat exchange fins are disposed inside the heat exchange jacket.

[0014] Preferably, the stirring assembly includes stirring blades and a first scraper. The stirring blades are installed at the lower end of the stirring shaft, and the first scraper is installed on the side of the stirring blades and contacts the inner side of the tank.

[0015] Preferably, the scraping assembly includes a second scraper, a connecting frame, and a scraper. The second scraper is disposed on the side of the scraper and contacts the inner side of the tank. The scraper is mounted on the stirring shaft through the connecting frame, and the stirring blades and the scraper are distributed at right angles on the stirring shaft.

[0016] Preferably, the stirring blades are arc-shaped serrated blades, and the scraper is strip-shaped serrated.

[0017] Preferably, the drive assembly includes a second neodymium magnet and a rotating disk. The second neodymium magnet is installed in the mounting slot of the rotating disk, and the number of second neodymium magnets is not less than two. The rotating disk is installed at the end of the output shaft of the servo motor through a connector and is located in the middle of the motor frame.

[0018] Preferably, the coupling assembly includes a coupling disk and a first neodymium magnet. The first neodymium magnet is installed in the mounting groove of the coupling disk. The number of first neodymium magnets should be a multiple of the number of second neodymium magnets. The coupling disk is mounted on the upper end of the stirring shaft via a connector. The coupling disk is correspondingly set with the rotating disk.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. Improved mixing efficiency: The mixing components adopt arc-shaped sawtooth mixing blades, which form laminar or turbulent flow through irregular shapes, enhancing shear force and mixing effect. The turbine disperser further generates strong shear force through high-speed rotation, refining raw material particles and improving the mixing uniformity of petroleum products.

[0021] 2. Reduce bubble interference and shorten mixing time: The vacuum component extracts gas from the tank through a variable frequency vacuum pump and a buffer tank, reducing the gas pressure and minimizing the interference of bubbles on the mixing effect. The buffer tank stabilizes the airflow and prevents materials from entering the vacuum pump, thus improving the reliability and safety of the system.

[0022] 3. Enhanced sealing and equipment lifespan: The drive and coupling components use neodymium magnets to achieve non-contact magnetic coupling, avoiding the sealing problems of traditional mechanical transmission, reducing wear and leakage risks. The number of the first neodymium magnet is set in multiples of the second neodymium magnet to enhance torque transmission, ensure efficient and stable power transmission, and extend the service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic cross-sectional view of the tank body of this utility model;

[0025] Figure 3 This is a schematic diagram of the coupling component structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the drive component structure of this utility model.

[0027] Explanation of reference numerals in the attached drawings: 1. Tank body; 2. Motor frame; 3. Servo motor; 4. Vacuum assembly; 401. First connecting pipe; 402. Variable frequency vacuum pump; 403. Buffer tank; 404. Second connecting pipe; 5. Fastener; 6. Tank cover; 7. Liquid inlet pipe; 8. Heat exchange assembly; 801. Heat exchange fins; 802. Heat exchange jacket; 9. Stirring assembly; 901. Stirring blade; 902. First scraper; 10. Scraping assembly; 1001. Second scraper; 1002. Connecting frame; 1003. Scraper; 11. Stirring shaft; 12. Turbine disperser; 13. Coupling assembly; 1301. Coupling disk; 1302. First neodymium magnet; 14. Drive assembly; 1401. Second neodymium magnet; 1402. Rotating disk. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating directional or positional relationships, they are based on the appendix. Figure 1The orientations or positional relationships shown are for the convenience of describing this application and simplifying the description only, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a high-efficiency mixing device for petroleum product manufacturing, including a tank 1 and a mixing shaft 11;

[0031] A heat exchange assembly 8 is provided on the outer side of the tank body 1. A tank cover 6 is installed on the tank body 1 by fasteners 5. A liquid inlet pipe 7 and a buffer assembly are provided on the tank cover 6. The buffer assembly is connected to a vacuum assembly 4. A servo motor 3 is installed on a motor frame 2 provided on the upper surface of the tank cover 6. A drive assembly 14 is installed at the end of the output shaft of the servo motor 3.

[0032] Specifically, tank 1 serves as the main container for holding petroleum product raw materials. Steam or hot water of different temperatures enters the heat exchange component 8 to conduct heat to tank 1 and regulate the temperature of the raw materials inside tank 1.

[0033] The can lid 6 seals the can body 1 with fasteners 5 to ensure airtightness during the stirring process. The liquid inlet pipe 7 is used to inject raw materials into the can body 1. The buffer component works with the vacuum component 4 to reduce the air pressure inside the can body 1 by drawing a vacuum, thereby reducing the impact of air bubbles on the stirring effect. The servo motor 3 provides rotational power through the drive component 14.

[0034] During operation, the raw material is injected through the liquid inlet pipe 7, the tank cover 6 is closed, the vacuum component 4 is activated to draw a vacuum, and the servo motor 3 drives the rotation of the stirring shaft 11 through the drive component 14 to stir. It integrates heat exchange and vacuum functions, which improves stirring efficiency and reduces bubble interference.

[0035] The tank body 1 can be made of stainless steel, and the tank lid 6 can be made of PTFE material to reduce the interference to the drive component 14 when the drive coupling component 13 rotates.

[0036] The stirring shaft 11 is installed inside the tank 1 by a fixing bracket. A coupling assembly 13 is installed at the upper end of the stirring shaft 11, and a stirring assembly 9 is installed at the lower end of the stirring shaft 11. A scraping assembly 10 and a turbine disperser 12 are installed on the stirring shaft 11.

[0037] Specifically, the stirring shaft 11, as the core transmission component, receives power from the drive component 14 through the coupling component 13, driving the stirring component 9, the scraping component 10 and the turbine disperser 12 to rotate, thereby achieving the mixing, dispersion and scraping of the raw materials from the tank wall.

[0038] The stirring shaft 11 is mounted on the fixed frame via bearings. The fixed frame stably mounts the stirring shaft 11 inside the tank 1. The coupling component 13 enables non-contact power transmission and improves the sealing of the tank 1. The stirring component 9 is located at the lower end of the shaft for main stirring. The scraping component 10 removes the adhering substances from the tank wall. The turbine disperser 12 generates strong shearing force through rotation, which refines the raw material particles and enhances the dispersion effect.

[0039] The stirring component 9 achieves uniform mixing, the scraping component 10 prevents raw materials from sticking to the wall, and the turbine disperser 12 generates shear force through high-speed rotation to refine particles. The multi-functional components are integrated into the stirring shaft 11, which improves the stirring efficiency.

[0040] Furthermore, the vacuum assembly 4 includes a first connecting pipe 401, a variable frequency vacuum pump 402, a buffer tank 403, and a second connecting pipe 404. The air inlet of the buffer tank 403 is connected to the air outlet on the tank cover 6 through the second connecting pipe 404, and the air inlet of the variable frequency vacuum pump 402 is connected to the air outlet of the buffer tank 403 through the first connecting pipe 401.

[0041] Specifically, the variable frequency vacuum pump 402 extracts gas from the tank 1, reduces the gas pressure inside the tank, and reduces the impact of air bubbles on stirring. The buffer tank 403 can play a vacuum buffering role, preventing the material in the tank 1 from entering the variable frequency vacuum pump 402, and can stabilize the gas pressure to prevent the vacuum pump from overloading.

[0042] The second connecting pipe 404 introduces the gas in the tank 1 into the buffer tank 403, and the first connecting pipe 401 delivers the gas in the buffer tank 403 to the variable frequency vacuum pump 402, forming a continuous pumping path.

[0043] Furthermore, the heat exchange assembly 8 includes heat exchange fins 801 and heat exchange jacket 802, which are disposed on the outer side of the tank body 1, and the heat exchange fins 801 are disposed inside the heat exchange jacket 802.

[0044] Specifically, the heat exchange medium circulates within the heat exchange jacket 802, and the heat exchange area is increased by the heat exchange fins 801, transferring heat to the raw material in the tank 1, thereby controlling the processing temperature and ensuring the flowability of the raw material.

[0045] The heat exchange fins 801 improve heat transfer efficiency, and the heat exchange jacket 802 ensures uniform heating or cooling. The heat exchange fins 801 and the heat exchange jacket 802 can be made of high thermal conductivity stainless steel.

[0046] Furthermore, the stirring assembly 9 includes a stirring blade 901 and a first scraper 902. The stirring blade 901 is installed at the lower end of the stirring shaft 11, and the first scraper 902 is installed on the side of the stirring blade 901 and contacts the inner side of the tank 1.

[0047] Specifically, the stirring blade 901 mixes the raw materials by rotating, and the first scraper 902 adheres to the inner bottom wall of the tank 1 to scrape off the attached materials and prevent the raw materials from accumulating.

[0048] When the stirring shaft 11 rotates, the stirring blades 901 achieve uniform mixing of raw materials through shearing force, and the first scraper 902 forms sliding contact with the inner wall of the tank 1. The first scraper 902 also cleans the bottom wall of the tank.

[0049] Furthermore, the scraping assembly 10 includes a second scraper 1001, a connecting frame 1002, and a scraper 1003. The second scraper 1001 is disposed on the side of the scraper 1003 and contacts the inner side of the tank 1. The scraper 1003 is mounted on the stirring shaft 11 through the connecting frame 1002. The stirring blade 901 and the scraper 1003 are distributed at right angles on the stirring shaft 11.

[0050] Specifically, the scraper 1003 is fixed to the stirring shaft 11 by the connecting frame 1002 and rotates with the shaft. The second scraper 1001 scrapes off the deposits on the tank wall. The right-angle distribution of the stirring blade 901 and the scraper 1003 optimizes the synergistic effect of stirring and scraping.

[0051] When the stirring shaft 11 rotates, the scraper 1003 and the second scraper 1001 clean the inner side wall of the tank. The scraper 1003 can also mix the raw materials, which enhances the stirring and scraping effect.

[0052] Furthermore, the stirring blade 901 is an arc-shaped serrated blade, and the scraper 1003 is a strip-shaped serrated blade.

[0053] Specifically, when the arc-shaped and strip-shaped serrated blades rotate inside the tank 1, their irregular shapes cause the raw materials to form complex flow patterns around the stirring blades 901 and scrapers 1003. When the rotation speed is slow, the raw material flow forms laminar flow, and when the rotation speed is fast, the raw material flow forms turbulent flow, which can improve the mixing speed and efficiency.

[0054] Furthermore, the drive assembly 14 includes a second neodymium magnet 1401 and a rotating disk 1402. The second neodymium magnet 1401 is installed in the mounting slot of the rotating disk 1402. The number of second neodymium magnets 1401 is not less than two. The rotating disk 1402 is installed at the end of the output shaft of the servo motor 3 through a connector and is located in the middle of the motor frame 2.

[0055] Furthermore, the coupling assembly 13 includes a coupling disk 1301 and a first neodymium magnet 1302. The first neodymium magnet 1302 is installed in the mounting groove of the coupling disk 1301. The number of first neodymium magnets 1302 should be a multiple of the number of second neodymium magnets 1401. The coupling disk 1301 is installed on the upper end of the stirring shaft 11 through a connector. The coupling disk 1301 is correspondingly arranged with the rotating disk 1402.

[0056] Specifically, the servo motor 3 drives the rotating disk 1402 to rotate, and the second neodymium magnet 1401 interacts with the coupling component 13 through magnetic force, realizing efficient power transmission through strong magnetic force, eliminating the need for mechanical contact, reducing wear, and improving sealing performance and equipment life.

[0057] The coupling disk 1301 is magnetically coupled to the second neodymium magnet 1401 of the rotating disk 1402 through the first neodymium magnet 1302, transmitting torque to the stirring shaft 11. The number of the first neodymium magnet 1302 is set to be a multiple of the number of the second neodymium magnet 1401 to improve torque transmission, enabling the coupling assembly 13 and the stirring shaft 11 to withstand greater loads, achieve stable synchronous rotation, and ensure the accuracy and stability of the transmission.

[0058] It is worth noting that if it is necessary to monitor the raw material temperature inside the tank 1 in real time, a temperature detector can be installed by opening a hole in the tank cover 6. This can correspond with the heat exchange component 8 to ensure the accuracy of the heating of the heat exchange component 8. The air inlet of the heat exchange component 8 is the lower section of the outer side, and the air outlet is the upper section of the outer side. This ensures that the discharge port on the inner side wall of the tank 1 is conical to ensure smooth discharge. The first neodymium magnet 1302 and the second neodymium magnet 1401 should be set according to the N pole and S pole alternating adjacent and equally spaced (N,S,N,S,...).

[0059] The input terminals of the servo motor 3 and the variable frequency vacuum pump 402 are electrically connected to the output terminal of the external controller. The servo motor 3 can be the ESMG1 series from Huichuan Technology, and the variable frequency vacuum pump 402 can be the FY-L520-75 model from Jinan Fengyun Electromechanical Technology.

[0060] The working principle and usage method of this utility model are as follows:

[0061] The high-efficiency mixing equipment for petroleum product manufacturing described in this utility model integrates mixing, heat exchange, vacuum, and scraping functions to achieve efficient mixing, dispersion, and processing of petroleum product raw materials. The specific principle is as follows:

[0062] Power transmission: The servo motor 3 forms magnetic coupling with the coupling disk 1301 and the first neodymium magnet 1302 in the coupling assembly 13 through the rotating disk 1402 and the second neodymium magnet 1401 in the drive assembly 14, realizing non-contact power transmission. The number of the first neodymium magnet 1302 is a multiple of the number of the second neodymium magnet 1401, which enhances torque transmission and ensures stable and efficient rotation of the stirring shaft 11.

[0063] The stirring shaft 11 is installed inside the tank 1 via a fixing frame and bearings, receives power from the coupling assembly 13, and drives the stirring assembly 9, the scraping assembly 10 and the turbine disperser 12 to rotate synchronously.

[0064] Stirring and dispersion: The stirring blade 901 generates shear force and turbulent high-speed rotation or laminar low-speed rotation through rotation, so as to achieve uniform mixing of raw materials. The first scraper 902 adheres to the inner bottom wall of the tank 1 to scrape off the attached substances and prevent the raw materials from accumulating.

[0065] The second scraper 1001 adheres to the inner wall of the tank 1, effectively removing adhering substances and assisting in mixing. The turbine disperser 12 generates strong shearing force through rotation, refining raw material particles and enhancing the dispersion effect.

[0066] Temperature control: The heat exchange medium, such as steam, hot water or coolant, is circulated in the heat exchange jacket 802. The heat exchange area is increased by the heat exchange fins 801, and the heat is transferred to the raw material in the tank 1 to accurately control the processing temperature and ensure the flowability of the raw material.

[0067] Vacuum treatment: The variable frequency vacuum pump 402 draws gas from the tank 1 through the second connecting pipe 404. After the gas flow is stabilized by the buffer tank 403, the gas is discharged, reducing the gas pressure inside the tank, reducing the interference of bubbles on the stirring effect, and improving the stirring and mixing efficiency. The buffer tank 403 prevents materials from entering the vacuum pump, stabilizes the gas pressure, and protects the equipment.

[0068] The following are the operating procedures for high-efficiency mixing equipment to ensure safe and standardized operation and to fully utilize the equipment's performance:

[0069] Preparation: Check the sealing of tank 1, tank cover 6 and fasteners 5 to ensure there is no leakage. Ensure that there are no impurities inside tank 1. Confirm that the heat exchange medium pipeline of heat exchange component 8 is connected normally. Prepare steam or hot water to preheat tank 1. Check the electrical connections of servo motor 3, frequency conversion vacuum pump 402 and external controller to ensure normal operation.

[0070] Raw materials are fed into the tank and a vacuum is applied: an appropriate amount of petroleum product raw materials are injected through the liquid inlet pipe 7, ensuring that it does not exceed two-thirds of the maximum volume of the tank 1. The liquid inlet pipe 7 and the tank 1 are sealed. The variable frequency vacuum pump 402 is started, and the pumping speed is adjusted by the external controller. The gas enters the buffer tank 403 through the second connecting pipe 404 and is then discharged through the first connecting pipe 401, reducing the gas pressure inside the tank 1 and reducing air bubbles.

[0071] Stirring and mixing: The servo motor 3 is started, and the stirring shaft 11 is rotated through the magnetic coupling of the drive component 14. The stirring blades 901, scraper 1003 and turbine disperser 12 work synchronously to achieve mixing, scraping and dispersing respectively;

[0072] Based on the viscosity of the raw materials and process requirements, the speed of the servo motor is adjusted to form laminar flow at low speed and turbulent flow at high speed, thus optimizing the mixing effect.

[0073] Discharge: After mixing is complete, turn off the servo motor 3 and the variable frequency vacuum pump 402, stop the heat exchange medium circulation, open the discharge port at the bottom of the tank 1, and discharge the processed raw materials;

[0074] Cleaning fluid is injected through the inlet pipe 7, and the stirring shaft 11 is started to rotate at low speed to clean the inside of the tank 1. The waste liquid is discharged through the discharge port.

[0075] Precautions: The temperature and pressure of the heat exchange medium must meet the equipment design requirements to avoid overheating or overpressure; regularly check the sealing of tank 1 and tank cover 6 to prevent leakage; avoid overloading the servo motor 3 or the frequency converter vacuum pump 402.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A high-efficiency mixing device for petroleum product manufacturing, comprising a tank (1) and a mixing shaft (11), characterized in that: A heat exchange assembly (8) is provided on the outer side of the tank body (1). A tank cover (6) is installed on the tank body (1) by fasteners (5). An inlet pipe (7) and a buffer assembly are provided on the tank cover (6). A vacuum assembly (4) is connected to the buffer assembly. A servo motor (3) is installed on a motor frame (2) provided on the upper surface of the tank cover (6). A drive assembly (14) is installed at the end of the output shaft of the servo motor (3). The stirring shaft (11) is installed inside the tank (1) by a fixing bracket. A coupling assembly (13) is installed at the upper end of the stirring shaft (11), and a stirring assembly (9) is installed at the lower end of the stirring shaft (11). A scraping assembly (10) and a turbine disperser (12) are installed on the stirring shaft (11).

2. The high-efficiency mixing equipment for petroleum product manufacturing according to claim 1, characterized in that: The vacuum assembly (4) includes a first connecting pipe (401), a variable frequency vacuum pump (402), a buffer tank (403), and a second connecting pipe (404). The air inlet of the buffer tank (403) is connected to the air outlet on the tank cover (6) through the second connecting pipe (404), and the air inlet of the variable frequency vacuum pump (402) is connected to the air outlet of the buffer tank (403) through the first connecting pipe (401).

3. The high-efficiency mixing equipment for petroleum product manufacturing according to claim 2, characterized in that: The heat exchange assembly (8) includes heat exchange fins (801) and heat exchange jacket (802). The heat exchange fins (801) and heat exchange jacket (802) are disposed on the outer side of the tank body (1), and the heat exchange fins (801) are disposed inside the heat exchange jacket (802).

4. The high-efficiency mixing equipment for petroleum product manufacturing according to claim 1, characterized in that: The stirring assembly (9) includes a stirring blade (901) and a first scraper (902). The stirring blade (901) is installed at the lower end of the stirring shaft (11), and the first scraper (902) is installed on the side of the stirring blade (901) and contacts the inner side of the tank (1).

5. The high-efficiency mixing equipment for petroleum product manufacturing according to claim 4, characterized in that: The scraping assembly (10) includes a second scraper (1001), a connecting frame (1002), and a scraper (1003). The second scraper (1001) is disposed on the side of the scraper (1003) and contacts the inner side of the tank (1). The scraper (1003) is mounted on the stirring shaft (11) through the connecting frame (1002). The stirring blade (901) and the scraper (1003) are distributed at right angles on the stirring shaft (11).

6. The high-efficiency mixing equipment for petroleum product manufacturing according to claim 5, characterized in that: The stirring blade (901) is an arc-shaped serrated blade, and the scraper (1003) is a strip-shaped serrated blade.

7. The high-efficiency mixing equipment for petroleum product manufacturing according to claim 1, characterized in that: The drive assembly (14) includes a second neodymium magnet (1401) and a rotating disk (1402). The second neodymium magnet (1401) is installed in the mounting slot of the rotating disk (1402). There are at least two second neodymium magnets (1401). The rotating disk (1402) is installed at the end of the output shaft of the servo motor (3) through a connector and is located in the middle of the motor frame (2).

8. The high-efficiency mixing equipment for petroleum product manufacturing according to claim 7, characterized in that: The coupling assembly (13) includes a coupling disk (1301) and a first neodymium magnet (1302). The first neodymium magnet (1302) is installed in the mounting groove of the coupling disk (1301). The number of first neodymium magnets (1302) should be a multiple of the number of second neodymium magnets (1401). The coupling disk (1301) is mounted on the upper end of the stirring shaft (11) through a connector. The coupling disk (1301) and the rotating disk (1402) are correspondingly arranged.

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