A lubricating oil additive and a method for preparing the same

Abstract

The present application belongs to the technical field of lubricating oil additive processing, and in particular to a lubricating oil additive and a preparation method thereof; the method comprises the following steps: step one: configuring a silicone oil solution; step two: configuring a silicone oil mother liquor; step three: adding stearic acid and heating and stirring; step four: adding a sulfur-phosphorus polyisobutene barium salt and heating and stirring; step five: emulsifying treatment; and step six: detecting the viscosity of the silicone oil and reconfiguring the viscosity of the silicone oil; the lubricating oil additive prepared by the lubricating oil additive preparation method comprises kerosene, silicone oil, stearic acid and a sulfur-phosphorus polyisobutene barium salt; the oil preparation device comprises a platform of a main body, and a mixing tank and a dispersion tank that are in communication with each other and are mounted on both sides of the upper end of the platform through supports; the mixed oil flows back and forth between the mixing tank and the dispersion tank, thereby reducing the air bubbles generated in the oil emulsification process, and facilitating the reconfiguration of the silicone oil with a viscosity deviation.

Description

Technical Field

[0001] This invention belongs to the field of lubricating oil additive processing technology, specifically, it is a lubricating oil additive and its preparation method. Background Technology

[0002] Silicone oil is a type of lubricating oil additive. It is a colorless and odorless oily liquid with advantages such as high chemical stability, low pour point, low volatility, low addition amount, and excellent anti-oxidation and high-temperature resistance. It is the most widely used antifoaming agent for lubricating oil. Silicone oil only has antifoaming properties when it is in a uniformly dispersed, insoluble state in the lubricating oil. The smaller the silicone oil particles dispersed in the oil, the better the antifoaming effect and the longer the duration of the antifoaming effect.

[0003] Currently, the preparation process for silicone oil involves first preparing a silicone oil solution or adding a small amount of additives, and then adding it to the lubricating oil while ensuring the viscosity of the silicone oil is maintained, thereby giving the lubricating oil an anti-foaming effect. Therefore, the viscosity of the silicone oil needs to be controlled during the preparation process. Summary of the Invention

[0004] To achieve the goal of reconfiguring silicone oils with viscosity deviations without affecting the mixing and dispersion processes, the present invention adopts the following technical solution:

[0005] The purpose of this invention is to provide a method that uses two interconnected processing containers for mixing and emulsifying lubricating oil, and detects the viscosity of the oil during the mixing stage. This reduces cavitation generated during the emulsification process in multiple cyclic conveying processes, thereby facilitating the reconfiguration of silicone oils with viscosity deviations.

[0006] To achieve the above objectives, the present invention provides a method for preparing a lubricating oil additive, comprising the following steps:

[0007] Step 1: Mix the low-viscosity silicone oil solution and the high-viscosity silicone oil solution in a mixing tank;

[0008] Step 2: Add the mixed oil obtained in Step 1 to kerosene or light diesel oil to obtain silicone oil mother liquor;

[0009] Step 3: Add stearic acid to the silicone oil mother liquor, and heat and stir.

[0010] Step 4: Add barium sulfophosphorized polyisobutylene salt to the mixed oil obtained in Step 3, and heat and stir.

[0011] Step 5: Emulsify the mixture in the dispersion tank using a dispersion disc;

[0012] Step 5: Detect the viscosity of the silicone oil and re-adjust the viscosity of the silicone oil.

[0013] The lubricating oil additive prepared by the lubricating oil additive preparation method comprises kerosene, silicone oil, stearic acid and barium sulfate-phosphated polyisobutylene.

[0014] The lubricating oil additive preparation method provided in this application involves mixing and emulsifying the oil through an oil preparation device. The oil preparation device includes a main platform, with a mixing tank and a dispersion tank mounted on both sides of the upper end of the platform via supports.

[0015] Multiple pipe joints are fixedly connected and interconnected on the mixing tank and the dispersing tank, respectively. The pipe joints are located at the lower side of the mixing tank and the dispersing tank, and the pipe joints on the mixing tank and the dispersing tank are connected to each other through a connecting pipe.

[0016] The mixing tank is vertically slidably connected to a top liquid plate, which is equipped with a feed pipe for injecting oil and additives into the mixing tank. The outer side of the top liquid plate is in contact with the inner wall of the mixing tank.

[0017] A sealing disc is vertically slidably connected inside the dispersion tank, and the outer side of the sealing disc abuts and fits against the inner wall of the dispersion tank.

[0018] The top liquid pan is lowered to squeeze the mixed oil from the mixing tank into the dispersion tank, and the top liquid pan is raised to draw the mixed oil from the dispersion tank into the mixing tank, so that the mixed oil flows back and forth between the mixing tank and the dispersion tank. Attached Figure Description

[0019] The following figures are intended only to illustrate and explain the present invention, wherein:

[0020] Figure 1 This is a flowchart of the lubricating oil additive preparation method of the present invention;

[0021] Figure 2 This is a process flow diagram of the lubricating oil additive of the present invention;

[0022] Figure 3 This is a schematic diagram of the oil preparation device of the present invention;

[0023] Figure 4 This is a schematic diagram of the sealing disc, protrusion, and pipe joint of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the rotating cylinder I, the sliding column, and the dispersing disk of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the cover, top liquid plate and the first telescopic actuator of the present invention;

[0026] Figure 7This is a schematic diagram of the sealing disc, sliding column, and dispersing disc of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of rotating drum I and rotating drum II of the present invention;

[0028] Figure 9 This is a schematic diagram of the top liquid plate and transmission wheel of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the first rotary driver and mixer of the present invention;

[0030] Figure 11 This is a schematic diagram of the groove, mixer, and drive wheel of the present invention;

[0031] Figure 12 This is a schematic diagram of the structure of the top liquid plate, the feed pipe and the first rotary actuator of the present invention;

[0032] Figure 13 This is a schematic diagram of the mixer, drive wheel, and control plate of the present invention.

[0033] In the diagram: Platform 1; Mixing tank 2; Dispersing tank 3; Connecting pipe 4; Baffle 21; Top liquid plate 22; First telescopic actuator 23; Feed pipe 24; Groove 25; First rotary actuator 26; Mixer 27; Transmission wheel 28; Control plate 29; Sealing plate 31; Protrusion 32; Rotary drum I 33; Sliding column 34; Dispersing plate 35; Rotary drum II 36; Second rotary actuator 37; Pipe joint 41. Detailed Implementation

[0034] To achieve the goal of reconfiguring silicone oils with viscosity deviations without affecting the mixing and dispersion processes, this invention provides a method for preparing a lubricating oil additive, comprising the following steps:

[0035] Step 1: Mix the low-viscosity silicone oil solution and the high-viscosity silicone oil solution in a mixing tank;

[0036] Step 2: Add the mixed oil obtained in Step 1 to kerosene or light diesel oil to obtain silicone oil mother liquor;

[0037] Step 3: Add stearic acid to the silicone oil mother liquor, and heat and stir.

[0038] Step 4: Add barium sulfophosphorized polyisobutylene salt to the mixed oil obtained in Step 3, and heat and stir.

[0039] Step 5: Emulsify the mixture in the dispersion tank using a dispersion disc;

[0040] Step 5: Detect the viscosity of the silicone oil and re-adjust the viscosity of the silicone oil.

[0041] The lubricating oil additive prepared by the lubricating oil additive preparation method comprises: 35-52 parts kerosene, 10-15 parts silicone oil, 3-8 parts stearic acid, and 3-8 parts barium sulfophosphorinated polyisobutylene salt by mass.

[0042] This application uses an oil preparation device to alternately transfer the mixed oil, allowing the mixed oil to flow back and forth between the mixing tank and the dispersion tank, thereby reconfiguring silicone oil with viscosity deviations without affecting the mixing and dispersion processes.

[0043] The following describes specific embodiments of the present invention.

[0044] Reference Figure 3-6 The following is an example illustrating the oil preparation apparatus used in the lubricating oil additive and its preparation method provided by the present invention, which utilizes a control mixer 27 to agitate the mixed oil and a dispersing disc 35 to emulsify the mixed oil:

[0045] The main platform 1 of the oil preparation device is installed on the operating table in the cleanroom, and the mixing tank 2 and the dispersing tank 3 are located on both sides of the upper end of the platform 1.

[0046] A cover 21 is installed on the upper side of the mixing tank 2. A top liquid plate 22 is vertically slidably connected inside the mixing tank 2. A feed pipe 24 for filling is provided on the top liquid plate 22. A hose is provided at the other end of the feed pipe 24. The hose passes through the perforation on the cover 21. A sealing plate 31 is vertically slidably connected inside the dispersion tank 3.

[0047] The square post on the top liquid plate 22 passes through the cover 21 and is slidably connected to the cover 21. The cover 21 is equipped with a first telescopic driver 23 for driving the top liquid plate 22 to move vertically. The movable end of the first telescopic driver 23 passes through the cover 21 and is fixedly connected to the upper side of the top liquid plate 22.

[0048] Start the first telescopic actuator 23 to drive the top liquid plate 22 to move vertically. During the process of controlling the mixed oil to flow back and forth between the mixing tank and the dispersion tank, air can be reserved under the top liquid plate 22.

[0049] Multiple round rods are installed on the upper side of the sealing disc 31, and the round rods penetrate the inner edge of the upper side of the dispersion tank 3.

[0050] A liquid discharge detection branch pipe is installed at pipe joint 41 on mixing tank 2, and a valve is installed on the branch pipe. Opening the valve allows the oil to be discharged or the viscosity of the oil to be detected.

[0051] Multiple mixers 27 are rotatably connected to the top liquid plate 22. Multiple vertically arranged perforations are provided on the mixers 27, and multiple arc-shaped grooves are provided on the side edge of the mixers 27.

[0052] A rotating drum I 33 is rotatably connected to the bottom of the dispersion tank 3. A sliding column 34 is vertically slidably connected inside the rotating drum I 33. A dispersion disc 35 is fixedly connected to the sliding column 34.

[0053] By controlling the high-speed rotation of the drum I33, the mixed oil is mixed and emulsified in the dispersion tank 3; by controlling the mixer 27 to stir the mixed oil, the additives are mixed in the oil and the cavitation generated during the emulsification process is reduced.

[0054] Reference Figure 9-13 The illustration shows an example of an oil preparation apparatus used in the lubricating oil additive and its preparation method provided by the present invention, which utilizes perforations on the mixer 27 to reduce cavitation bubbles generated during the emulsification process of the mixed oil:

[0055] The mixer 27 can move vertically relative to the top liquid plate 22, and the bottom side of the top liquid plate 22 is provided with a groove 25 for accommodating the bottom stirring plate of the mixer 27.

[0056] By controlling the vertical movement and rotation of the mixer 27, the arc groove is used to agitate the mixed oil, so that the additives are mixed in the oil. The perforations on the mixer 27 are used to reduce the cavitation bubbles generated in the mixed oil during the emulsification process, thereby improving the viscosity detection effect of the mixed oil.

[0057] Reference Figure 10-11 The illustration shows an embodiment of the oil preparation apparatus used in the lubricating oil additive and its preparation method provided by the present invention, which increases the agitation range of the bottom stirring plate of the mixer 27 for the mixed oil:

[0058] The rotating shaft of the mixer 27 is connected to the eccentric position of the bottom stirring plate of the mixer 27. As the rotating shaft of the mixer 27 rotates around its own axis, the stirring range of the bottom stirring plate of the mixer 27 on the mixed oil can be increased.

[0059] Reference Figure 6 and Figure 9-12 The illustration shows an example of an oil preparation apparatus used in the lubricating oil additive and its preparation method provided by the present invention to mix oils at different depths:

[0060] A first rotary driver 26 is installed on the upper side of the top liquid plate 22. A drive gear is connected to the output shaft of the first rotary driver 26 via a flat key or a wedge key. Multiple mixers 27 are provided. Each mixer 27 is provided with a rotating shaft. A square rod is fixedly connected to the upper side of the rotating shaft. The rotating shaft is vertically slidably connected to the top liquid plate 22 and rotatably connected to the top liquid plate 22.

[0061] A T-shaped column is fixedly connected to the upper side of the square rod, and an I-shaped transmission wheel 28 is slidably connected to the upper side of the square rod. The transmission wheel 28 is connected to the drive gear through meshing transmission. A control plate 29 is rotatably connected to the T-shaped column.

[0062] A second telescopic actuator is installed on the upper side of the top liquid plate 22, and the movable end of the second telescopic actuator is fixedly connected to the control cross plate 29; the telescopic actuator in this application can be an electric telescopic rod or a hydraulic cylinder.

[0063] By activating multiple second telescopic actuators, the mixing discs at the bottom of multiple mixers 27 are driven to move vertically. Simultaneously, the first rotary actuator 26 rotates, causing the drive gear to rotate around its own axis. This rotation, in turn, drives multiple I-shaped transmission wheels 28 to rotate synchronously, causing the mixing discs at the bottom of the mixer 27 to move vertically. Figure 10 Under the conditions shown, oils at different heights are mixed.

[0064] Reference Figure 3-4 The following is an example illustrating the oil preparation device used in the lubricating oil additive and its preparation method provided by the present invention, which drives the rotating drum I33 to rotate:

[0065] The bottom of the dispersion tank 3 is rotatably connected to a rotating drum I 33, and a sliding column 34 is vertically slidably connected to the rotating drum I 33. The sliding column 34 is clamped on the rotating drum I 33 through a square cross section. The sliding column 34 can be fixedly locked on the rotating drum I 33 by fasteners. A dispersion disc 35 is fixedly connected to the sliding column 34.

[0066] A gear ring is fixedly connected to the bottom of the rotating drum I 33. A second rotary driver 37 for driving the gear ring to rotate is installed on the platform 1. A drive gear is connected to the output shaft of the second rotary driver 37 by a flat key or a wedge key. The drive gear and the gear ring are connected by meshing transmission.

[0067] The rotary driver in this application can be a stepper motor or a servo motor.

[0068] Start the second rotary drive 37 to make the drive gear drive the gear ring to rotate, thereby making the dispersing disc 35 rotate at high speed to emulsify the mixed oil.

[0069] The sealing disc 31 has a protrusion 32 on its upper side, which provides storage space for the dispersion disc 35 and reduces the discharge residue of oil.

[0070] Both the sealing plate 31 and the top liquid plate 22 are provided with inclined grooves on their sides. The inclined grooves are used to fully discharge the liquid materials in the mixing tank 2 and the dispersing tank 3.

[0071] Reference Figure 3 and Figure 7-8The illustration shows an embodiment of the oil preparation device used in the lubricating oil additive and its preparation method provided by the present invention, which improves the structure of the dispersing disk 35 so that the position of the dispersing disk 35 in the dispersing tank 3 is automatically adjusted:

[0072] A sliding column 34 is welded and fixedly connected to the upper and lower sides of the dispersion disk 35 respectively. The sliding column 34 on the upper side passes through the protrusion 32 and forms a through hole on the protrusion 32. A rotating cylinder II 36 is rotatably connected to the inside of the through hole. The sliding column 34 is slidably connected in the rotating cylinder II 36 and is stuck in the rotating cylinder II 36 through a rectangular cross section.

[0073] Springs are welded and fixed to the ends of the two sliding columns 34 and the ends of the rotating drum I 33 and rotating drum II 36, respectively, so that the position of the dispersing disc 35 in the dispersing tank 3 is automatically adjusted, so that the dispersing disc 35 is positioned between the rotating drum I 33 and rotating drum II 36, and the mixed oil in the middle layer inside the dispersing tank 3 is fully agitated and emulsified.

Claims

1. A method for preparing a lubricating oil additive, characterized in that: Includes the following steps: Step 1: Mix the low-viscosity silicone oil solution and the high-viscosity silicone oil solution in a mixing tank; Step 2: Add the mixed oil obtained in Step 1 to kerosene or light diesel oil to obtain silicone oil mother liquor; Step 3: Add stearic acid to the silicone oil mother liquor, and heat and stir. Step 4: Add barium sulfophosphorized polyisobutylene salt to the mixed oil obtained in Step 3, and heat and stir. Step 5: Emulsify the mixture in the dispersion tank using a dispersion disc; Step 5: Test the viscosity of the silicone oil and readjust the viscosity of the silicone oil accordingly; The mixing tank (2) and the dispersing tank (3) are respectively installed on both sides of the platform (1). The pipe joints (41) at the bottom of the mixing tank (2) and the dispersing tank (3) are connected by a connecting pipe (4). A top liquid plate (22) is vertically slidably connected inside the mixing tank (2). A feed pipe (24) for filling is provided on the top liquid plate (22). A sealing plate (31) is vertically slidably connected inside the dispersing tank (3). A baffle (21) is installed on the upper side of the mixing tank (2), and a square column on the top liquid plate (22) passes through the baffle (21) and is slidably connected to the baffle (21); The cover (21) is equipped with a first telescopic actuator (23) for driving the top liquid plate (22) to move vertically. Multiple mixers (27) are rotatably connected to the top liquid plate (22), and a rotating cylinder I (33) is rotatably connected to the bottom of the dispersion tank (3). A dispersion plate (35) is installed inside the rotating cylinder I (33) through a sliding column (34). The mixer (27) can move vertically relative to the top liquid plate (22), and the bottom side of the top liquid plate (22) is provided with a groove (25) for accommodating the bottom stirring plate of the mixer (27). Multiple round rods are installed on the upper side of the sealing disc (31), and the round rods penetrate the inner edge of the upper side of the dispersion tank (3); A liquid outlet detection branch pipe is provided at the pipe joint (41) on the mixing tank (2); The shaft of the mixer (27) is connected to the eccentric position of the bottom stirring plate of the mixer (27).

2. The lubricating oil additive prepared by the lubricating oil additive preparation method according to claim 1, characterized in that, The composition of this lubricating oil additive includes: 35-52 parts kerosene, 10-15 parts silicone oil, 3-8 parts stearic acid, and 3-8 parts barium sulfate phosphate polyisobutylene.

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