Blending equipment for lubricating oil production

Abstract

The invention discloses blending equipment for lubricating oil production, relates to the technical field of lubricating oil processing equipment, and aims to solve the problems of low lubricating oil blending efficiency and more oil residues in the prior art. The blending equipment comprises a tank body, a top cover, a stirring paddle and a scraping frame, the scraping frame is rotationally connected in the tank body, and the scraping frame is connected with the stirring paddle through a butt joint mechanism; the spoiler is hinged to the back side of the vertical paddle, turbulent flow in an oil product is increased through the spoiler during stirring and blending, so that the mixing effect of base oil and an additive in the blending tank is effectively improved, the spoiler block is designed to increase the balance weight of the tail of the spoiler, the turbulent flow generation effect is enhanced, and the mixing effect of the base oil and the additive in the blending tank is improved. And the blending time is further shortened, so that the production efficiency of lubricating oil is improved, the oil quality and the reliability of the production process are improved, scraping operation is performed through the scraping frame, scraping and sweeping operation is performed through the deformable scraping piece, and effective scraping is performed while the inner wall of the tank body is protected.

Description

Technical Field

[0001] The present invention relates to the technical field of lubricating oil processing equipment, and in particular to a blending equipment for lubricating oil production. Background Art

[0002] Lubricating oil is an important petrochemical product, widely used in a variety of mechanical equipment. It can effectively reduce the operating loss of mechanical parts, control friction, reduce wear, cool down, seal and isolate mechanical equipment, and improve the operating efficiency and life of the equipment. The performance and quality of lubricating oil directly affect the safety and reliability of equipment operation.

[0003] Finished lubricants are mainly composed of base oil and additives, among which base oil accounts for the vast majority. Additives can improve the performance of base oil. The production and processing of lubricants is mainly a process of blending base oil and additives in proportion. Its mechanism is the homogeneous blending of liquid-liquid phases that dissolve in each other. It is the result of the combined action of three diffusion mechanisms: molecular diffusion, eddy diffusion, and convection diffusion. It refers to mixing base oils and additives of different properties in a certain proportion so that they have the performance indicators required for lubricants.

[0004] Lubricant blending is the core link of lubricant production, which determines the variety, specification, quality and cost of lubricant. In the prior art, common lubricant blending devices usually add additives to base oil for premixing before blending. The existing blending tank has a single stirring method, and a long time of stirring is required in the blending tank to fully mix the base oil and additives, which reduces the production efficiency of the lubricant. In addition, the oil after blending is easily adhered to the inner wall of the blending tank when discharged, which affects the ratio accuracy when blending oils of different specifications in the later stage, and even causes pollution.

[0005] Therefore, the present application provides a blending device for lubricating oil production to meet the demand. Summary of the invention

[0006] The purpose of the present application is to provide a blending device for lubricating oil production, which adopts a three-dimensional stirring paddle to improve the blending efficiency and utilizes a scraper frame to clean the oil and reduce oil residue.

[0007] To achieve the above purpose, the present application provides the following technical solution: a blending device for lubricating oil production, comprising: A tank body, the tank body is used to hold oil products, the tank body is a cylindrical shell with a transparent top, the center of the tank bottom of the tank body is concave and is provided with a discharge port, the bottom of the discharge port is connected to a discharge barrel, the bottom of the discharge barrel is provided with a telescopic cylinder, the telescopic end of the telescopic cylinder is connected to a discharge plug, the discharge plug moves in the discharge barrel, the discharge barrel also includes a sealing chamber, a flow chamber and a discharge chamber, the top of the discharge plug is adapted to the sealing chamber, the volume of the discharge plug is smaller than the internal volume of the flow chamber, the bottom of the discharge plug is adapted to the discharge chamber, the side wall of the discharge chamber is connected to a discharge chamber, and the bottom of the discharge chamber is connected to a discharge pipe; When the sealing chamber is blocked by the discharge plug, stirring and blending can be carried out; when discharging after blending is completed, the telescopic rod is retracted to a predetermined position, the discharge plug descends, moves out of the sealing chamber, and is in the flow chamber, and the oil enters the flow chamber through the sealing chamber, and flows from the flow chamber through the discharge chamber and the discharge chamber, and finally flows out from the discharge pipe; after the residual oil in the tank body is cleaned, the telescopic rod is retracted to the bottom, the discharge plug enters the discharge chamber, and squeezes the residual oil in the discharge chamber into the discharge bin for thorough discharge.

[0008] A top cover, the top cover is buckled on the top of the tank body, a feeding pipe and a stirring motor are arranged on the top surface of the top cover, the stirring motor is located at the center of the top cover, and the speed of the stirring motor is adjustable; When stirring and blending is performed, the stirring motor rotates at a high speed; when discharging and cleaning the oil products, the stirring motor rotates at a low speed.

[0009] A stirring paddle, the rotating shaft of which is driven by the stirring motor, the bottom end of which is rotatably connected to the feeding plug, and the stirring paddle can move synchronously with the feeding plug along the axial direction; A scraper frame, the scraper frame is rotatably connected in the tank body, and a scraper is arranged in a circumferential array on the scraper frame, and the scraper is used to scrape the inner wall of the tank body; The scraper frame is connected to the stirring paddle via a docking mechanism, and the docking mechanism is controlled by the movement of the stirring paddle.

[0010] When the telescopic cylinder is retracted to a predetermined position, the docking mechanism takes effect, the stirring motor rotates at a low speed, and the scraper frame is driven to rotate synchronously through the stirring paddle to perform a scraping and cleaning operation.

[0011] Preferably, the docking mechanism includes a docking cap and a docking ring, the docking cap is provided on the rotating shaft, the docking ring is provided on the scraper frame and the docking ring can be passed through by the rotating shaft, the docking cap is located above the docking ring, the bottom of the docking cap and the top of the docking ring are both provided with docking blocks in a circular array, the end edges of the docking blocks are provided with rounded corners, and docking grooves are provided between adjacent docking blocks, and the docking grooves are adapted to the docking blocks. This design can ensure that the docking cap and the docking ring are automatically docked.

[0012] Preferably, a pillar is provided on the top of the discharge plug, the top of the pillar is rotatably connected to the bottom end of the rotating shaft, the lower part of the rotating shaft is provided with the docking cap, the top of the scraper frame is provided with a sleeve, the sleeve is slidably connected to the rotating shaft, the bottom of the scraper frame is provided with the docking ring, the bottom of the tank bottom is provided with a bracket in a ring array, the end of the bracket is connected to a ring seat, a space is left between the ring seat and the tank bottom, the docking ring is rotatably connected to the ring seat, and the pillar passes through the ring seat and the docking ring.

[0013] Preferably, the scraper includes a bottom scraper and a side scraper, the outer wall of the sleeve is provided with a ring array of support rods, the outer wall of the docking ring is provided with the bottom scraper in a ring array, the number of the bottom scraper is the same as the number of the support rods, the bottom scraper is an arc-shaped plate, the bottom scraper is used to scrape the bottom of the tank, the side scraper is connected between the bottom scraper and the end of the support rod, the side scraper is spiral-shaped, and the side scraper is used to scrape the side wall inside the tank body.

[0014] Preferably, a ring frame is connected between all the support rods and between all the bottom scrapers, a gap is left between the bottom scraper and the side scraper and the inner wall of the tank body, a scraper blade is provided on the outer side of the bottom scraper and the side scraper, the scraper blade is slidably connected to the inner wall of the tank body, and the scraper blade is made of deformable material to ensure clean scraping and protect the inner wall of the tank body.

[0015] Preferably, a distribution pipe is provided at the bottom of the top cover, and the distribution pipe is an annular tube body and is connected with the feed pipe. Diversion pipes are evenly provided at the bottom of the distribution pipe, and the bottom opening of the diversion pipe is oriented in the same direction as the side scraper, so that the side scraper cooperates with the diversion pipe to guide the oil entering the tank body.

[0016] Preferably, a sleeve is provided at the output end of the stirring motor, and a synchronization rod is provided at the top of the rotating shaft. The synchronization rod is adapted to the sleeve, and the synchronization rod and the sleeve rotate synchronously and slide relative to each other axially.

[0017] Preferably, the rotating shaft is provided with transverse blades, and the transverse blades have two layers, an upper layer and a lower layer, and are positioned correspondingly. Each layer of the transverse blades has multiple groups and are evenly distributed. Vertical blades are connected between the two corresponding groups of transverse blades, and spoilers are hinged on the vertical blades. The spoilers are located on the back side of the rotation direction of the vertical blades. Spoiler blocks are provided on the edges of the spoilers, and there is at least one group of spoiler blocks. The spoilers can swing to generate turbulence during stirring and blending, and the spoiler blocks can have a counterweight effect, increase the swing amplitude of the spoilers, increase the degree of turbulence, and improve the stirring efficiency.

[0018] Preferably, the feed plug is a cylinder, and the top of the feed plug is conical, the connecting part between the flow chamber and the discharge chamber is trumpet-shaped, and the bottom edge of the sealing chamber and the top edge of the discharge chamber are both provided with rounded corners so that the feed plug cooperates with the sealing chamber and the discharge chamber.

[0019] In summary, the technical effects and advantages of the present invention are as follows: The present invention provides two layers of multiple groups of evenly distributed transverse blades and vertical blades connecting the upper and lower transverse blades, and hinges a spoiler on the back of the vertical blade. The spoiler is used to increase the turbulence in the oil product during stirring and blending, thereby effectively improving the mixing effect of the base oil and additives in the blending tank. The spoiler block is designed to increase the counterweight at the tail of the spoiler, enhance the turbulence effect, and further reduce the blending time, thereby improving the production efficiency of the lubricating oil, and improving the oil quality and the reliability of the production process.

[0020] The present invention uses a telescopic cylinder to control the discharging device at the center of the tank bottom through the cooperation of the docking cap and the docking ring, so that the scraper frame does not rotate at high speed with the rotating shaft during stirring and blending, effectively avoiding wear and even impact between the scraper frame and the inner wall of the tank body, and the docking block and the docking groove can achieve precise alignment between the rotating shaft and the scraper frame during discharging, the scraper frame performs a scraping operation, and adopts a deformable scraper blade to perform a sweeping operation, which protects the inner wall of the tank body and effectively scrapes the material, avoids oil waste and pollution caused by residual oil on the inner wall of the tank body, improves oil output, reduces production loss, is conducive to the use of blending devices to accurately blend oils of different specifications, effectively avoids pollution and inaccurate proportions caused by residual oil, and thus improves the reliability of lubricating oil production.

[0021] The present invention designs a distribution pipe to evenly inject oil into the tank body, and uses a scraper frame to guide the flow, thereby ensuring that the oil can be smoothly injected, reducing the impact force on the tank body when injecting the oil, effectively protecting the structural stability of the tank body, and facilitating the long-term use of the tank body, thereby reducing the maintenance cost of the tank body and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a right view structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the AA cross-sectional structure of the present invention; Figure 4 This is a schematic diagram of the enlarged structure of B of the present invention; Figure 5 It is a schematic diagram of the internal structure of the tank body of the present invention; Figure 6 This is a schematic diagram of the bottom structure of the top cover of the present invention; Figure 7 This is a schematic diagram of the stirring paddle structure of the present invention; Figure 8 It is a schematic diagram of the structure of the scraper frame of the present invention.

[0024] In the figure: 1. tank body; 2. top cover; 3. rotating shaft; 4. scraper frame; 5. unloading plug; 10. Discharge barrel; 11. Discharge chamber; 12. Telescopic cylinder; 13. Bracket; 14. Ring seat; 20. Feed pipe; 21. Stirring motor; 22. Sleeve; 23. Distribution pipe; 24. Diverter pipe; 30. Synchronous rod; 31. Docking cap; 32. Horizontal blade; 33. Vertical blade; 34. Spoiler; 35. Spoiler block; 40. docking ring; 41. bottom scraper; 42. side scraper; 43. support rod; 44. bushing; 45. scraper; 46. ring frame; 50. Pillar. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example: Reference Figure 1-8 The blending equipment for lubricating oil production shown in the figure comprises a tank body 1, a top cover 2, a stirring paddle, and a scraper frame 4; The tank body 1 is a cylindrical shell with a transparent top, which is used to hold oil products. The center of the bottom of the tank body 1 is concave and provided with a discharge port. The bottom of the discharge port is connected to a discharge barrel 10. A telescopic cylinder 12 is provided at the bottom of the discharge barrel 10. The telescopic end of the telescopic cylinder 12 is connected to a discharge plug 5. The discharge plug 5 moves in the discharge barrel 10. The discharge barrel 10 also includes a sealing chamber, a flow chamber and a discharge chamber. The top of the discharge plug 5 is adapted to the sealing chamber. The volume of the discharge plug 5 is smaller than the internal volume of the flow chamber. The bottom of the discharge plug 5 is adapted to the discharge chamber. A discharge chamber 11 is connected to the side wall of the discharge chamber. The bottom of the discharge chamber 11 is connected to a discharge pipe. The top cover 2 is buckled on the top of the tank body 1. The top surface of the top cover 2 is provided with a feed pipe 20 and a stirring motor 21. The stirring motor 21 is located at the center of the top cover 2. The speed of the stirring motor 21 is adjustable. The rotating shaft 3 of the stirring paddle is driven by the stirring motor 21, the bottom end of the rotating shaft 3 is rotatably connected to the material discharge plug 5, and the stirring paddle can move synchronously with the material discharge plug 5 along the axial direction; The scraper frame 4 is rotatably connected in the tank body 1, and a scraper is arranged in a circumferential array on the scraper frame 4, and the scraper is used to scrape the inner wall of the tank body 1; The scraper frame 4 is connected to the stirring paddle via a docking mechanism, and the docking mechanism is controlled by the movement of the stirring paddle.

[0027] As an implementation method in this embodiment, in order to make the docking structure between the stirring paddle and the scraper frame 4 adaptively docking effective, such as Figure 4 , Figure 7 , Figure 8 As shown, the docking mechanism includes a docking cap 31 and a docking ring 40. The docking cap 31 is provided on the rotating shaft 3, and the docking ring 40 is provided on the scraper frame 4 and the docking ring 40 can allow the rotating shaft 3 to pass through. The docking cap 31 is located above the docking ring 40, and the bottom of the docking cap 31 and the top of the docking ring 40 are both provided with docking blocks in a circular array, and the end edges of the docking blocks are provided with rounded corners, and docking grooves are provided between adjacent docking blocks, and the docking sections of the docking blocks and the docking grooves are both fan-shaped surfaces with an angle of 30°.

[0028] As an implementation method in this embodiment, in order to keep the rotation of the stirring blade and the scraper frame 4 stable, as Figure 4 , Figure 5 As shown, a support 50 is provided on the top of the discharge plug 5, and the top of the support 50 is rotatably connected to the bottom end of the rotating shaft 3. A docking cap 31 is provided at the lower part of the rotating shaft 3. A shaft sleeve 44 is provided on the top of the scraper frame 4, and the shaft sleeve 44 is slidably connected to the rotating shaft 3. A docking ring 40 is provided at the bottom of the scraper frame 4. There are six groups of brackets 13 in a circular array on the bottom of the tank. A ring seat 14 is connected to the end of the bracket 13. A space is left between the ring seat 14 and the bottom of the tank. The docking ring 40 is rotatably connected to the ring seat 14, and the support 50 passes through the ring seat 14 and the docking ring 40.

[0029] As an implementation method in this embodiment, in order to completely scrape off the oil adhered to the inner wall of the tank body 1, as shown in FIG. Figure 3 , Figure 4 , Figure 8 As shown, the scraper includes a bottom scraper 41 and a side scraper 42. The outer wall of the sleeve 44 is provided with a ring array of support rods 43. The outer wall of the docking ring 40 is provided with a ring array of bottom scrapers 41. The bottom scrapers 41 and the support rods 43 are each provided in six groups. The bottom scraper 41 is an arc-shaped plate, and the bottom scraper 41 is used to scrape the bottom of the tank. The side scraper 42 is connected between the bottom scraper 41 and the end of the support rod 43. The side scraper 42 is spiral-shaped, and the side scraper 42 is used to scrape the side wall inside the tank body 1.

[0030] As an implementation method in this embodiment, in order to enhance the structural strength and scraping effect of the scraper frame 4, as shown in FIG. Figure 4 , Figure 8 As shown, a ring frame 46 is connected between all the support rods 43 and between all the bottom scrapers 41, and a gap is left between the bottom scraper 41 and the side scraper 42 and the inner wall of the tank body 1. A scraper blade 45 is provided on the outer side of the bottom scraper 41 and the side scraper 42. The scraper blade 45 is slidably connected to the inner wall of the tank body 1, and the scraper blade 45 is made of soft PVC material.

[0031] As an implementation method in this embodiment, in order to make the oil to be blended enter the tank body 1 evenly, as Figure 3 , Figure 6 As shown, a distribution pipe 23 is provided at the bottom of the top cover 2. The distribution pipe 23 is an annular tube body and is connected to the feed pipe 20. A diversion pipe 24 is evenly provided at the bottom of the distribution pipe 23. The bottom opening of the diversion pipe 24 faces the same direction as the side scraper 42.

[0032] As an implementation method in this embodiment, in order to achieve the effect of being movable and lifting when the rotating shaft 3 rotates, as shown in FIG. Figure 3 , Figure 7 As shown, a sleeve 22 is provided at the output end of the stirring motor 21, and a synchronization rod 30 is provided at the top of the rotating shaft 3. The synchronization rod 30 is adapted to the sleeve 22, and the synchronization rod 30 and the sleeve 22 rotate synchronously and slide relative to each other axially.

[0033] As an implementation method in this embodiment, in order to improve the stirring and blending efficiency, Figure 3 , Figure 7 As shown, the rotating shaft 3 is provided with transverse blades 32, which have two layers, upper and lower, and are positioned correspondingly. Each layer of transverse blades 32 has four groups and are evenly distributed. Vertical blades 33 are connected between the two corresponding groups of transverse blades 32. Spoilers 34 are hinged on the vertical blades 33. The spoilers 34 are located on the back side of the rotation direction of the vertical blades 33, and three groups of spoiler blocks 3 are provided on the edge of the spoiler 34.

[0034] As an implementation method in this embodiment, in order to facilitate the cooperation and discharge of the discharge plug 5 and the discharge cylinder 10, as shown in FIG. Figures 2 to 4 As shown, the discharge plug 5 is a cylinder, and the top of the discharge plug 5 is conical, the connecting part between the flow chamber and the discharge chamber is trumpet-shaped, and the bottom edge of the sealing chamber and the top edge of the discharge chamber are both provided with rounded corners.

[0035] Working principle of the utility model: when blending oil products, the telescopic cylinder 12 is in an extended state, and the material discharge plug 5 is blocked in the sealing cavity at the upper part of the discharge cylinder 10, so that the bottom of the tank body 1 is closed. At this time, the material discharge plug 5 lifts the rotating shaft 3, so that the docking cap 31 is separated from the docking ring 40, and the rotating shaft 3 will not drive the scraper frame 4 to rotate, and then the material is added, and the premixed oil products are injected into the distribution pipe 23 from the feed pipe 20, and flow out from the diverter pipe 24 at the bottom of the top cover 2, and flow into the tank body 1 along the side scraper 42 to reduce the impact on the tank body 1 when the oil products fall; then the stirring and blending begins, and the stirring motor 21 is started, and the rotating shaft 3 is driven to rotate at a high speed through the sleeve 22 and the synchronous rod 30, driving the horizontal blade 32 and The vertical paddle 33 rotates to stir and blend the oil. During this process, the spoiler 34 swings due to the centrifugal force generated by the rotation and the resistance of the oil, which increases the turbulence in the oil, thereby improving the blending efficiency of the oil. The spoiler block 35 can increase the counterweight at the tail of the spoiler 34 to enhance the swinging effect and generate more turbulence. After the stirring motor 21 runs for a predetermined time, the oil is fully stirred and blended, and then discharged. The stirring motor 21 stops running, and the telescopic cylinder 12 shrinks to a predetermined position, driving the discharge plug 5 to descend and move to the flow chamber in the middle of the discharge barrel 10. At this time, the sealing chamber is opened, and the discharge barrel 10 is connected from top to bottom, and the oil is supported between the tank body 1 and the ring seat 14. The oil flows through the space generated by the support frame 13 and the space between the pillar 50 and the docking ring 40, passes through the discharge barrel 10 and the discharge cavity 11, and is discharged from the discharge pipe. The conical surface design on the top of the discharge plug 5 can reduce the oil residue on it. In addition, during this process, the rotating shaft 3 moves with the discharge plug 5, and the synchronous rod 30 slides along the sleeve 22, driving the docking cap 31 to fall, and the docking cap 31 and the docking ring 40 approach and dock. The docking blocks on the two are automatically adjusted to the docking angle by the fillet and then inserted into the docking groove; after the oil is basically discharged, the residual oil is cleaned, and the stirring motor 21 rotates at a low speed, and the docking ring 40 is driven to rotate on the ring seat 14 through the docking cap 31 on the rotating shaft 3, which in turn drives the scraper frame 4 Rotate, the shaft sleeve 44 is sleeved on the rotating shaft 3 and rotates synchronously therewith, the support rod 43 is used to enhance the rotation stability of the scraper frame 4 from above, the ring frame 46 enhances the structural strength of the support rod 43 and the bottom scraper 41, when the scraper frame 4 rotates, the bottom scraper 41 and the side scraper 42 scrape the inner wall of the tank body 1 through the scraper blade 45, and the scraped oil is gathered along the spiral side scraper 42 and the arc-shaped bottom scraper 41 to be discharged from the discharge port, and the use of a docking mechanism to control the rotation state of the scraper frame 4 can effectively prevent the scraper frame 4 from causing wear on the inner wall of the tank body 1 when the high-speed rotation of the scraper frame 4 occurs during stirring and blending, and the deformable soft PVC scraper blade 45 can protect the inner wall of the tank body 1 while ensuring the scraping effect;After the predetermined scraping time, the oil in the tank body 1 is completely discharged, the stirring motor 21 stops running, the telescopic cylinder 12 shrinks to the limit state, driving the discharge plug 5 to fall into the discharge cavity at the bottom of the discharge barrel 10, and squeezes the remaining oil in the discharge cavity into the discharge cavity 11 for discharge, and then the telescopic cylinder 12 extends to the initial position, so that the discharge plug 5 seals the bottom of the tank body 1 for re-blending. ;

[0036] The electromechanical connection involved in the present invention is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, which belongs to common knowledge.

[0037] Components not described in detail herein are prior art.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A blending equipment for lubricating oil production, characterized in that: include: A tank body (1), the tank body (1) is used to hold oil products, the tank body (1) is a cylindrical shell with a transparent top, the center of the tank bottom of the tank body (1) is concave and provided with a discharge port, the bottom of the discharge port is connected to a discharge barrel (10), the bottom of the discharge barrel (10) is provided with a telescopic cylinder (12), the telescopic end of the telescopic cylinder (12) is connected to a discharge plug (5), the discharge plug (5) moves in the discharge barrel (10), the discharge barrel (10) further comprises a sealing chamber, a flow chamber and a discharge chamber, the top of the discharge plug (5) is adapted to the sealing chamber, the volume of the discharge plug (5) is smaller than the internal volume of the flow chamber, the bottom of the discharge plug (5) is adapted to the discharge chamber, the side wall of the discharge chamber is connected to a discharge chamber (11), and the bottom of the discharge chamber (11) is connected to a discharge pipe; A top cover (2), the top cover (2) being buckled onto the top of the tank body (1), a feeding pipe (20) and a stirring motor (21) being provided on the top surface of the top cover (2), the stirring motor (21) being located at the center of the top cover (2), and the rotation speed of the stirring motor (21) being adjustable; A stirring paddle, wherein the rotating shaft (3) of the stirring paddle is driven by the stirring motor (21), the bottom end of the rotating shaft (3) is rotatably connected to the discharge plug (5), and the stirring paddle can move synchronously with the discharge plug (5) along the axial direction; a scraper frame (4), the scraper frame (4) being rotatably connected in the tank body (1), and having scrapers arranged in a circumferential array on the scraper frame (4), the scrapers being used to scrape the inner wall of the tank body (1); The scraper frame (4) is connected to the stirring paddle via a docking mechanism, and the docking mechanism is controlled by the movement of the stirring paddle.

2. A blending equipment for lubricating oil production according to claim 1, characterized in that: The docking mechanism comprises a docking cap (31) and a docking ring (40); the docking cap (31) is provided on the rotating shaft (3); the docking ring (40) is provided on the scraper frame (4) and the docking ring (40) allows the rotating shaft (3) to pass through; the docking cap (31) is located above the docking ring (40); the bottom of the docking cap (31) and the top of the docking ring (40) are both provided with docking blocks in an annular array; the end edges of the docking blocks are provided with rounded corners; docking grooves are provided between adjacent docking blocks; the docking grooves are adapted to the docking blocks.

3. A blending equipment for lubricating oil production according to claim 2, characterized in that: A support (50) is provided at the top of the unloading plug (5), the top of the support (50) is rotatably connected to the bottom end of the rotating shaft (3), the lower part of the rotating shaft (3) is provided with the docking cap (31), the top of the scraper frame (4) is provided with a shaft sleeve (44), the shaft sleeve (44) is slidably connected to the rotating shaft (3), the bottom of the scraper frame (4) is provided with the docking ring (40), the bottom of the tank bottom is provided with a bracket (13) in an annular array, the end of the bracket (13) is connected to a ring seat (14), a space is left between the ring seat (14) and the tank bottom, the docking ring (40) is rotatably connected to the ring seat (14), and the support (50) passes through the ring seat (14) and the docking ring (40).

4. A blending equipment for lubricating oil production according to claim 3, characterized in that: The scraper comprises a bottom scraper (41) and a side scraper (42); a support rod (43) is provided in an annular array on the outer wall of the shaft sleeve (44); the bottom scraper (41) is provided in an annular array on the outer wall of the docking ring (40); the number of the bottom scraper (41) and the number of the support rod (43) are the same; the bottom scraper (41) is an arc-shaped plate; the bottom scraper (41) is used to scrape the bottom of the tank; the side scraper (42) is connected between the bottom scraper (41) and the end of the support rod (43); the side scraper (42) is spiral-shaped; the side scraper (42) is used to scrape the side wall inside the tank body (1).

5. A blending equipment for lubricating oil production according to claim 4, characterized in that: A ring frame (46) is connected between all the support rods (43) and between all the bottom scrapers (41); a gap is left between the bottom scrapers (41) and the side scrapers (42) and the inner wall of the tank body (1); scrapers (45) are provided on the outer sides of the bottom scrapers (41) and the side scrapers (42); the scrapers (45) are slidably connected to the inner wall of the tank body (1); and the scrapers (45) are made of a deformable material.

6. A blending equipment for lubricating oil production according to claim 4, characterized in that: A distribution pipe (23) is provided at the bottom of the top cover (2), the distribution pipe (23) is an annular pipe body and is connected to the feed pipe (20), and a diversion pipe (24) is evenly provided at the bottom of the distribution pipe (23), and the bottom opening of the diversion pipe (24) is oriented in the same direction as the side scraper (42).

7. The blending equipment for lubricating oil production according to claim 1, characterized in that: The output end of the stirring motor (21) is provided with a sleeve (22), and the top of the rotating shaft (3) is provided with a synchronization rod (30). The synchronization rod (30) is adapted to the sleeve (22), and the synchronization rod (30) and the sleeve (22) rotate synchronously and slide relative to each other in the axial direction.

8. The blending equipment for lubricating oil production according to claim 1, characterized in that: The rotating shaft (3) is provided with transverse blades (32), the transverse blades (32) have upper and lower layers and are positioned correspondingly, each layer has multiple groups of transverse blades (32) and are evenly distributed, and vertical blades (33) are connected between the two corresponding groups of transverse blades (32) above and below, and the vertical blades (33) are hinged with spoilers (34), the spoilers (34) are located on the back side of the vertical blades (33) in the direction of rotation, and spoiler blocks (35) are provided on the edges of the spoilers (34), and there is at least one group of spoiler blocks (35).

9. The blending equipment for lubricating oil production according to claim 1, characterized in that: The discharge plug (5) is a cylinder, and the top of the discharge plug (5) is conical, the connection between the flow chamber and the discharge chamber is trumpet-shaped, and the bottom edge of the sealing chamber and the top edge of the discharge chamber are both provided with rounded corners.

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