A lubricating oil production and blending device

Abstract

This utility model discloses a lubricating oil production and blending device, including a heating tank and a discharge port installed at the bottom of the heating tank. It also includes a support rod installed inside the heating tank, an isolation cylinder installed on the support rod, a perforation hole on the isolation cylinder, a drive assembly installed on the heating tank, a spiral blade installed on the drive assembly, and a feeding assembly for metering feed installed on the heating tank. The drive assembly stirs the raw materials while driving the spiral blade to rotate inside the isolation cylinder. Several perforations are arranged in a circumferential array evenly distributed on the isolation cylinder. The isolation cylinder has an internal cavity, and the spiral blade contacts the inner wall of the cavity. The spiral blade, in conjunction with the isolation cylinder, moves the raw materials inside the isolation cylinder upwards, then flows back through the perforation hole into the gap between the isolation cylinder and the heating tank, thus repeating this process continuously, ensuring uniform heating of the raw materials and avoiding dead zones and mixing blind spots.

Description

Technical Field

[0001] This utility model relates to the field of lubricating oil production technology, specifically to a lubricating oil production and blending device. Background Technology

[0002] In the production of lubricating oil, base oil needs to be mixed with various additives such as anti-wear and anti-oxidation agents in a specific ratio to meet the lubrication needs of different equipment. The market demand for lubricating oil is becoming increasingly diverse, and different scenarios require products with different formulations. Traditional blending methods cannot quickly adapt to the production of multiple varieties, so specific blending equipment is required.

[0003] In existing technologies, traditional devices often employ a single stirring shaft with fixed blades. For base oils and additives with large viscosity differences, "layered vortices" are prone to occur during stirring. The stirring range of the fixed blades is limited, and mixing blind zones are easily formed on the inner wall and bottom of the tank. Residual raw materials are not involved in the blending, affecting the stability of the finished lubricating oil quality. Some lubricating oil raw materials need to be blended within a specific temperature range to ensure performance. The heating structure of existing devices is mostly tank wall jacket heating. Uneven heat transfer leads to excessively high local temperatures inside the tank, which can easily cause heat-sensitive additives to fail and affect the mixing quality. Utility Model Content

[0004] The purpose of this invention is to provide a lubricating oil production and blending device to solve the problems of insufficient stirring and insufficient heating mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a lubricating oil production and blending device, comprising a heating tank and a discharge port installed at the bottom of the heating tank, a support rod installed inside the heating tank, an isolation cylinder installed on the support rod, a leakage hole opened on the isolation cylinder, a drive assembly installed on the heating tank, a spiral blade installed on the drive assembly, and a feeding assembly installed on the heating tank for quantitative feeding, wherein the drive assembly stirs the raw materials while driving the spiral blade to rotate inside the isolation cylinder.

[0006] In the preferred embodiment of this technical solution, there are several leakage holes, and these leakage holes are evenly distributed in a circumferential array on the isolation cylinder.

[0007] In the preferred embodiment of this technical solution, a cavity is provided inside the isolation cylinder, and the spiral blades are in contact with the inner wall of the cavity of the isolation cylinder.

[0008] In a preferred embodiment of this technical solution, the drive assembly includes a drive motor mounted on the top of the heating tank, a rotating block fixedly connected to the output end of the drive motor, a first rotating rod fixedly connected to the bottom of the rotating block, a connecting frame fixedly connected to the rotating block, a second rotating rod rotatably connected to the connecting frame, a first gear fixedly connected to the second rotating rod, a second gear meshing with the first gear, and a stirring blade for stirring raw materials fixedly connected to the second rotating rod. The spiral blade is fixedly connected to the first rotating rod, and the second gear is fixedly connected inside the heating tank. When the connecting frame rotates, it drives the first gear to move, and the first gear meshes with the second gear, thereby driving the second rotating rod and the stirring blade to rotate.

[0009] Based on the preferred embodiment of this technical solution, two stirring blades are provided, and the stirring blades are positioned between the isolation cylinder and the heating tank.

[0010] According to the preferred embodiment of this technical solution, the feeding assembly includes a feed inlet fixedly connected to the heating tank, a scale installed on the feed inlet, a positioning plate fixedly connected inside the feed inlet, a pressing rod slidably connected to the positioning plate, a closing plate fixedly connected to one end of the pressing rod, and a spring fixedly connected between the closing plate and the positioning plate. The spring contracts to pull the closing plate to fit against the bottom of the feed inlet.

[0011] In the preferred embodiment of this technical solution, a sealing ring is provided on the sealing plate, and the sealing plate contacts the feed inlet through the sealing ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The spiral blades, in conjunction with the isolation cylinder, cause the raw material inside the isolation cylinder to move upwards, and then flow back through the leakage hole into the gap between the isolation cylinder and the heating tank. This process is repeated to ensure continuous circulation of the raw material, thereby ensuring uniform heating of the raw material and avoiding dead zones and mixing blind spots.

[0013] 2. The dual-blade mixing system shears the raw material outside the cylinder, and the interlocking holes enable the internal and external circulation of the raw material, eliminating blind spots in the mixing process and improving the mixing uniformity to over 95%. At the same time, the arc-shaped ribs of the mixing blades enhance the shearing force, which can effectively mix raw materials with large viscosity differences, avoid "local agglomeration", and improve the performance stability of the finished lubricating oil by more than 40%. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of a lubricating oil production and blending device according to the present invention; Figure 2 for Figure 1 Schematic diagram of the intermediate heating tank; Figure 3 This is a cross-sectional view of the isolation cylinder of this utility model; Figure 4 This is a schematic diagram of the drive component structure of this utility model; Figure 5 This is a schematic diagram of the feeding assembly structure of this utility model.

[0015] In the diagram: 1. Heating tank; 21. Support rod; 22. Isolation cylinder; 23. Leakage hole; 24. Spiral blade; 31. Drive motor; 32. Rotating block; 33. First rotating rod; 34. Connecting frame; 35. Second rotating rod; 36. First gear; 37. Second gear; 38. Stirring blade; 41. Feed inlet; 42. Scale; 43. Positioning plate; 44. Pressing rod; 45. Sealing plate; 46. Spring; 5. Discharge port. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1 - Figure 5 This utility model provides an embodiment of a lubricating oil production and blending device, including a heating tank 1 and a discharge port 5 installed at the bottom of the heating tank 1. It also includes a support rod 21 installed inside the heating tank 1, an isolation cylinder 22 installed on the support rod 21, a leakage hole 23 opened on the isolation cylinder 22, a drive assembly installed on the heating tank 1, a spiral blade 24 installed on the drive assembly, and a feeding assembly for metering feed installed on the heating tank 1. The drive assembly stirs the raw materials while driving the spiral blade 24 to rotate inside the isolation cylinder 22. The heating tank 1 is made of 304 stainless steel, which is resistant to lubricating oil and wear. The tank is equipped with anti-oxidation additives and a jacketed heating structure for precise temperature control, typically between 30-60℃, suitable for lubricant blending needs. The support rod 21 is made of 45# steel with a galvanized surface for rust prevention, providing stable support for the weight of the isolation cylinder 22. The isolation cylinder 22 is made of PPH plastic, which has good temperature resistance and a smooth surface, making it less prone to material buildup. The spiral blades 24 are made of 304 stainless steel with a pitch of 50-80mm. When rotating, they can drive the raw material inside the isolation cylinder 22 to flow up and down, working with the leakage hole 23 to achieve raw material circulation. The discharge port 5 is equipped with a ball valve, which can precisely control the discharge speed of the blended lubricant to avoid waste.

[0018] Please see Figure 2 - Figure 3A further solution based on this embodiment is as follows: a plurality of leakage holes 23 are provided, and the plurality of leakage holes 23 are evenly distributed in a circumferential array on the isolation cylinder 22. The number of leakage holes 23 is 6-8, and the hole diameter is 3-5mm. The circumferential array distribution can make the raw material enter and exit the isolation cylinder 22 evenly and avoid local accumulation of raw material. The inner wall of the leakage holes 23 is polished to be smooth and burr-free, preventing raw material residue from clogging and ensuring smooth circulation.

[0019] Please see Figure 3 A further solution based on this embodiment is as follows: a cavity is provided inside the isolation cylinder 22, and the spiral blade 24 is in contact with the inner wall of the cavity of the isolation cylinder 22. The gap between the inner diameter of the cavity and the outer diameter of the spiral blade 24 is controlled at 0.5-1mm, which not only ensures the smooth rotation of the spiral blade 24, but also reduces the residue of raw materials in the gap and improves the utilization rate of raw materials. The cavity depth of the isolation cylinder 22 is adapted to the height of the heating tank 1, which can cover most of the raw material area in the tank and enhance the circulation mixing effect.

[0020] Please see Figure 2 - Figure 4 A further embodiment of this solution is as follows: the drive assembly includes a drive motor 31 mounted on the top of the heating tank 1, a rotating block 32 fixedly connected to the output end of the drive motor 31, a first rotating rod 33 fixedly connected to the bottom of the rotating block 32, a connecting frame 34 fixedly connected to the rotating block 32, a second rotating rod 35 rotatably connected to the connecting frame 34, a first gear 36 fixedly connected to the second rotating rod 35, a second gear 37 meshing with the first gear 36, and a stirring blade 38 fixedly connected to the second rotating rod 35 for stirring raw materials. The spiral blade 24 is fixedly connected to the first rotating rod 33, and the second gear 37 is fixedly connected inside the heating tank 1. When the connecting frame 34 rotates, it drives the first gear 36 to move. The first gear 36 meshes with the second gear 37, thereby driving the second rotating rod 35 and the stirring blade 38 to rotate. The drive motor 31 is a geared motor with an output speed of 10-15 r / min. The speed is stable, preventing the raw materials from splashing due to high-speed stirring. The rotating block 32 and the first rotating rod 33 are made of 304 stainless steel, which is high in strength and corrosion resistant. The connecting frame 34 is made of aluminum alloy, which is lightweight and has a strong load-bearing capacity. The first gear 36 and the second gear 37 are made of No. 45 steel, and the tooth surface is treated with high frequency quenching, with a hardness of HRC50-55. They are highly wear-resistant and not easily worn after long-term meshing. The stirring blade 38 has arc-shaped ribs on its surface, which can enhance the shearing and stirring effect on the raw materials and is suitable for mixing base oils and additives with large viscosity differences.

[0021] Please see Figure 4A further solution based on this embodiment is as follows: two stirring blades 38 are provided, and the stirring blades 38 are located between the isolation cylinder 22 and the heating tank 1. The two stirring blades 38 are 180° apart and symmetrically distributed on both sides of the connecting frame 34, which can cover the annular area between the isolation cylinder 22 and the heating tank 1, thus avoiding the formation of a stirring blind zone in this area; the length of the stirring blades 38 is adapted to the width of the annular area to ensure that the raw materials are fully contacted and stirred.

[0022] Please see Figure 5 A further embodiment of this solution is as follows: the feeding assembly includes a feed inlet 41 fixedly connected to the heating tank 1, a scale 42 installed on the feed inlet 41, a positioning plate 43 fixedly connected inside the feed inlet 41, a pressing rod 44 slidably connected to the positioning plate 43, a closing plate 45 fixedly connected to one end of the pressing rod 44, and a spring 46 fixedly connected between the closing plate 45 and the positioning plate 43. The spring 46 contracts to pull the closing plate 45 to fit against the bottom of the feed inlet 41. The feed inlet 41 is made of PVC. The material is corrosion-resistant and has a smooth inner wall, reducing raw material adhesion; the scale 42 is made of tempered glass with an anti-fog film on the surface, making it easy to clearly read the raw material dosage with an accuracy of 10mL to ensure quantitative feeding; the positioning plate 43 is made of stainless steel, the pressing rod 44 is made of PP plastic, and the spring 46 is a stainless steel compression spring with a stable elastic coefficient, which can provide sealing force for a long time; the sealing plate 45 is made of PPH plastic, which is oil-resistant and corrosion-resistant. Pressing the pressing rod 44 opens the feeding, and the spring 46 automatically resets and closes after being released, making operation convenient.

[0023] Please see Figure 5 A further solution based on this embodiment is as follows: a sealing ring is provided on the sealing plate 45, and the sealing plate 45 contacts the feed inlet 41 through the sealing ring. The sealing ring is made of nitrile rubber, which has good oil resistance and good elasticity. It can fit tightly against the inner wall of the feed inlet 41 to prevent raw material leakage, ensure quantitative feeding accuracy, and avoid cross-contamination caused by raw material residue.

[0024] Working principle: When using the lubricating oil production blending device, firstly, quantitative feeding is performed. The amount of material added is observed through the scale 42. Pressing the pressing rod 44 of the feeding component causes the closing plate 45 to stretch the spring 46, causing the closing plate 45 to separate from the bottom of the feeding port 41. The raw material inside the feeding port 41 will flow into the interior of the heating tank 1 through the gap between the closing plate 45 and the feeding port 41. After feeding is completed, the pressing rod 44 is released, and the spring 46 contracts to reset the closing plate 45. The nitrile rubber sealing ring ensures a leak-free seal. All the required raw materials are added in this manner. After the raw materials enter the heating tank 1, the jacketed heating structure of the heating tank 1 is activated to adjust the temperature inside the tank to 30-60℃ to meet the temperature requirements of lubricating oil blending. At the same time, the drive component is activated, and the drive motor 31 runs, driving the rotating block 32 at the output end to rotate. The rotating block 32 synchronously drives the first rotating rod 33 at the bottom and the connecting frame 34 on the side to rotate. The spiral blades 24 on the first rotating rod 33 rotate together. The material is attached to the inner wall of the cavity of the isolation cylinder 22. When it rotates, it will drive the raw material inside the isolation cylinder 22 to be conveyed upward. After the raw material reaches the top of the isolation cylinder 22, it overflows through the circumferential array of holes 23 into the area between the isolation cylinder 22 and the heating tank 1. At the same time, the connecting frame 34 drives the second rotating rod 35 to revolve around the rotating block 32. The first gear 36 on the second rotating rod 35 meshes with the second gear 37 fixed inside the heating tank 1. During the revolution, it generates its own rotation, which in turn drives the two stirring blades 38 on the second rotating rod 35 to rotate at high speed, shearing and stirring the raw material outside the isolation cylinder 22, breaking the "layered vortex" caused by viscosity difference. After stirring, the raw material outside the isolation cylinder 22 enters the interior of the isolation cylinder 22 through the holes 23, forming a "conveying inside the isolation cylinder + shearing and stirring outside the cylinder" circulating mixing system, ensuring that the raw material is fully mixed without dead corners. After the mixing is completed, the heating and driving components are turned off, and the ball valve of the discharge port 5 at the bottom of the heating tank 1 is opened to discharge the mixed lubricating oil, completing the mixing operation.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubricating oil production blending device, comprising a heating tank (1) and a discharge port (5) installed at the bottom of the heating tank (1), characterized in that: It also includes a support rod (21) installed inside the heating tank (1), an isolation cylinder (22) installed on the support rod (21), a leak hole (23) opened on the isolation cylinder (22), a drive assembly installed on the heating tank (1), a spiral blade (24) installed on the drive assembly, and a feed assembly for quantitative feeding installed on the heating tank (1). The drive assembly stirs the raw materials while driving the spiral blade (24) to rotate inside the isolation cylinder (22).

2. The lubricating oil production and blending apparatus according to claim 1, characterized in that: There are several holes (23), and the holes (23) are evenly distributed in a circular array on the isolation cylinder (22).

3. The lubricating oil production and blending apparatus according to claim 2, characterized in that: The isolation cylinder (22) has a cavity inside, and the spiral blade (24) is in contact with the inner wall of the cavity of the isolation cylinder (22).

4. The lubricating oil production and blending apparatus according to claim 3, characterized in that: The drive assembly includes a drive motor (31) mounted on the top of the heating tank (1), a rotating block (32) fixedly connected to the output end of the drive motor (31), a first rotating rod (33) fixedly connected to the bottom of the rotating block (32), a connecting frame (34) fixedly connected to the rotating block (32), a second rotating rod (35) rotatably connected to the connecting frame (34), a first gear (36) fixedly connected to the second rotating rod (35), a second gear (37) meshing with the first gear (36), and a stirring blade (38) fixedly connected to the second rotating rod (35) for stirring raw materials. The spiral blade (24) is fixedly connected to the first rotating rod (33), and the second gear (37) is fixedly connected inside the heating tank (1). When the connecting frame (34) rotates, it drives the first gear (36) to move. The first gear (36) meshes with the second gear (37), thereby driving the second rotating rod (35) and the stirring blade (38) to rotate.

5. The lubricating oil production and blending apparatus according to claim 4, characterized in that: There are two stirring blades (38), and the stirring blades (38) are positioned between the isolation cylinder (22) and the heating tank (1).

6. The lubricating oil production and blending apparatus according to claim 5, characterized in that: The feeding assembly includes a feed inlet (41) fixedly connected to the heating tank (1), a scale (42) installed on the feed inlet (41), a positioning plate (43) fixedly connected inside the feed inlet (41), a pressing rod (44) slidably connected to the positioning plate (43), a closing plate (45) fixedly connected to one end of the pressing rod (44), and a spring (46) fixedly connected between the closing plate (45) and the positioning plate (43). The spring (46) contracts and pulls the closing plate (45) to fit against the bottom of the feed inlet (41).

7. A lubricating oil production and blending apparatus according to claim 6, characterized in that: A sealing ring is provided on the sealing plate (45), and the sealing plate (45) is in contact with the feed inlet (41) through the sealing ring.

Images