A precision filter device for producing industrial wear-resistant hydraulic oil

Abstract

The utility model discloses an industrial anti -wear hydraulic oil production is with fine filter equipment, including demulsification tank, the upper end of demulsification tank is installed with stirring mechanism, one side of demulsification tank is installed with ultrasonic generator, the lower extreme of demulsification tank is connected with fixed pipe, the lower extreme of fixed pipe is connected with scrap -removing jar, the both sides of lower extreme of scrap -removing jar are connected with the connecting pipe, the lower extreme of connecting pipe is installed with rotating equipment, the conical fairing is connected on rotating equipment, the periphery lateral wall on scrap -removing jar is fixed with annular permanent magnet, the conical fairing and annular permanent magnet correspond, the lower extreme of two connecting pipes is connected with filter jar. The utility model realizes the removal of comprehensive impurity from micron to nanometer, compared with single filter core system, and the purification efficiency improves more than 50%, can maintain the long time stable operation of hydraulic system, effectively prevents filter core blockage, prolongs ceramic membrane life, and the hydraulic oil is recycled after purification, and reduces waste oil emission.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic oil fine filtration technology, and in particular to a fine filtration device for the production of industrial anti-wear hydraulic oil. Background Technology

[0002] In hydraulic systems widely used in industrial equipment, anti-wear hydraulic oil serves as the core lubricating medium, and its performance directly affects the stable operation of the system and the lifespan of the equipment. However, with long-term cyclic use, anti-wear hydraulic oil easily becomes contaminated with metal particles (such as iron filings), moisture, colloids, and other impurities. These impurities not only accelerate the wear of hydraulic components but also lead to system instability and even equipment failure. Especially in high-precision, high-load mechanical systems, such as CNC machine tools, heavy engineering machinery, and automated production lines, the cleanliness of the hydraulic oil directly determines the reliability and production efficiency of the equipment.

[0003] Currently, traditional hydraulic oil filtration systems generally use static filter elements. While these provide good initial filtration, the filter elements become easily clogged with impurities over time, leading to decreased system flow, increased differential pressure, and frequent downtime for filter element replacement. This not only impacts production efficiency (losses can exceed 30%) but also increases maintenance costs and labor burden. Furthermore, traditional systems have limited ability to remove metal particles, especially micron-sized iron filings, which can easily cause secondary pollution and affect the overall system operation. Therefore, we propose a fine filtration device for industrial anti-wear hydraulic oil production to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fine filtration device for the production of industrial anti-wear hydraulic oil.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fine filtration device for producing industrial anti-wear hydraulic oil includes a demulsifying tank, a stirring mechanism installed at the upper end of the demulsifying tank, an ultrasonic generator installed on one side of the demulsifying tank, a fixed pipe connected to the lower end of the demulsifying tank, a chip removal tank connected to the lower end of the fixed pipe, connecting pipes on both sides of the lower end of the chip removal tank, a rotating device installed at the lower end of the connecting pipe, a conical guide shroud connected to the rotating device, an annular permanent magnet fixed on the circumferential side wall inside the chip removal tank, the conical guide shroud corresponding to the annular permanent magnet, a filter tank connected to the lower end of the two connecting pipes, a gradient ceramic filter membrane installed inside the filter tank, and a drain pipe connected to the lower end of the filter tank.

[0006] Preferably, the stirring mechanism includes a first drive motor installed in the middle of the upper end of the demulsifying tank, the output shaft of the first drive motor is connected to a stirring rod, the lower end of the stirring rod extends into the demulsifying tank, and a plurality of stirring blades are fixed at equal intervals around the stirring rod.

[0007] Preferably, both the fixed pipe and the drain pipe are equipped with electric valves.

[0008] Preferably, an inlet pipe is connected to one side of the upper end of the demulsifying tank.

[0009] Preferably, the rotating device includes a mounting base fixed to one side of the lower end of the chip removal tank, a second drive motor is mounted on one side of the mounting base, a connecting rod is connected to the end of the output shaft of the second drive motor, the connecting rod passes through the side wall of the chip removal tank and is connected to the middle of the lower end of the conical guide shroud.

[0010] Preferably, a cover is detachably installed on one side of the upper end of the chip removal tank.

[0011] Preferably, multiple sensors are installed at equal intervals on one side of the demulsifying tank.

[0012] In this utility model, during filtration: 1. Demulsification and mixing: Anti-wear hydraulic oil enters the demulsification tank through the inlet pipe. The first drive motor starts and drives the stirring blade to rotate, so that the hydraulic oil is fully mixed. At the same time, the ultrasonic generator emits 40kHz high-frequency vibration to break the emulsion structure in the oil, making it easier for water and impurities to separate. The sensor monitors the viscosity of the hydraulic oil in real time, and the control system adjusts the motor speed and ultrasonic power according to the feedback to optimize the demulsification effect. 2. Adsorption and centrifugal separation of metal scraps: Hydraulic oil enters the chip removal tank through a fixed pipe. The second drive motor drives the conical guide shroud to rotate at high speed, forming a centrifugal force field. Particles larger than 50μm are thrown towards the tank wall under centrifugal force. The annular permanent magnet adsorbs metal impurities such as iron filings, preventing them from entering the next stage system and causing secondary pollution. 3. Gradient ceramic membrane multi-stage filtration: After preliminary purification, the hydraulic oil enters the filter tank through the connecting pipe. The gradient ceramic membrane (silicon carbide membrane) inside has a pore size of 20-100nm and filters nano-sized particles and colloids step by step. This membrane material has the advantages of high temperature resistance, corrosion resistance and long service life, which greatly reduces the replacement frequency and reduces maintenance costs. 4. Hydraulic oil delivery after purification: The purified hydraulic oil is discharged through the drain pipe and recycled into the hydraulic system. The cover can be opened periodically to clean the metal particles adsorbed in the chip removal tank, thus achieving system maintenance.

[0013] This utility model has the following advantages: 1. It adopts a four-stage purification mechanism of "demulsification + permanent magnet adsorption + centrifugal separation + ceramic membrane filtration" to achieve comprehensive removal of impurities from micron to nanometer level. Compared with a single filter system, the purification efficiency is improved by more than 50%, which can maintain the stable operation of the hydraulic system for a long time. 2. The permanent magnet adsorption and centrifugal separation structure effectively prevents filter clogging, extends the life of ceramic membrane, and extends the replacement cycle by more than 3 times. The efficiency loss caused by the shutdown and replacement of filter element due to clogging in traditional systems is up to 30%, which can be reduced to less than 5%. 3. Metal scraps are effectively recycled and can be remelted and reused. Hydraulic oil is purified and recycled, reducing waste oil emissions. In summary, this invention achieves comprehensive impurity removal from the micron to the nanometer level. Compared with a single filter system, the purification efficiency is improved by more than 50%, which can maintain the stable operation of the hydraulic system for a long time, effectively prevent filter clogging, extend the life of the ceramic membrane, and allow the purified hydraulic oil to be recycled, reducing waste oil emissions. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention; Figure 2 A structural diagram showing the conical shroud and annular permanent magnet of this utility model; Figure 3 This is a structural diagram of the rotating device of this utility model; Figure 4 This is a structural diagram of the stirring mechanism of this utility model.

[0015] In the diagram: 1 First drive motor, 2 Demulsifier, 3 Inlet pipe, 4 Ultrasonic generator, 5 Electric valve, 6 Connecting pipe, 7 Filter tank, 8 Fixing pipe, 9 Cover, 10 Chip removal tank, 11 Second drive motor, 12 Drain pipe, 13 Mounting base, 14 Connecting rod, 15 Conical guide shroud, 16 Ring permanent magnet, 17 Stirring blade, 18 Stirring rod, 19 Sensor. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A fine filtration device for the production of industrial anti-wear hydraulic oil includes a demulsifying tank 2. A stirring mechanism is installed at the upper end of the demulsifying tank 2, and an ultrasonic generator 4 is installed on one side of the demulsifying tank 2. The ultrasonic waves generate a cavitation effect in the liquid, forming microbubbles that quickly burst and release high-temperature and high-pressure energy, thereby destroying the water-oil emulsion film and achieving demulsification. The lower end of the demulsifying tank 2 is connected to a fixed pipe 8, the lower end of the fixed pipe 8 is connected to a chip removal tank 10, both sides of the lower end of the chip removal tank 10 are connected to connecting pipes 6, the lower end of the connecting pipes 6 is equipped with a rotating device, a conical guide shroud 15 is connected to the rotating device, and an annular permanent magnet 16 is fixed on the inner side wall of the chip removal tank 10. The annular permanent magnet 16 is made of neodymium iron boron material. The conical flow guide shroud 15 corresponds to the annular permanent magnet 16. The lower ends of the two connecting pipes 6 are connected to the filter tank 7. The filter tank 7 is equipped with a gradient ceramic filter membrane. The lower end of the filter tank 7 is connected to the drain pipe 12. The gradient ceramic membrane silicon carbide membrane adopts a pore size of 20-100nm, which filters nano-sized particles and colloids step by step. It has the advantages of high temperature resistance, corrosion resistance and long service life, which greatly reduces the replacement frequency and reduces maintenance costs. The gradient filtration structure transitions from large pore size (100nm) to small pore size (20nm) layer by layer, which can intercept large particles to prevent clogging and efficiently remove colloids and micron-sized pollutants. The stirring mechanism includes a first drive motor 1 installed in the middle of the upper end of the demulsifying tank 2. The output shaft of the first drive motor 1 is connected to a stirring rod 18. The lower end of the stirring rod 18 extends into the demulsifying tank 2. Multiple stirring blades 17 are fixed at equal intervals around the stirring rod 18. The stirring blades 17 are arranged in a multi-layer staggered manner to enhance the turbulence effect and improve the mixing efficiency. It is suitable for high viscosity hydraulic oil treatment. Electric valves 5 are installed on both the fixed pipe 8 and the drain pipe 12. The electric valves 5 are linked with the control system and can be automatically opened and closed according to the filtration pressure or time setting to realize automated operation. The upper end of the demulsifying tank 2 is connected to an inlet pipe 3. The rotating device includes a mounting base 13 fixed to the lower end of the chip removal tank 10. A second drive motor 11 is mounted on one side of the mounting base 13. The output shaft of the second drive motor 11 is connected to a connecting rod 14. The connecting rod 14 passes through the side wall of the chip removal tank 10 and is connected to the lower middle part of the conical guide shroud 15. The drain pipe 12 can be connected to a hydraulic oil storage tank or a reprocessing system to build a closed-loop oil management system and achieve efficient resource utilization. A cover 9 is detachably installed on one side of the upper end of the chip removal tank 10. The cover 9 adopts a quick-release structure design, which facilitates regular cleaning by manual or robotic arms and improves the maintainability of the system. Multiple sensors 19 are installed at equal intervals on one side of the demulsifying tank 2. The sensors 19 integrate multi-parameter detection modules such as temperature and conductivity, and together with the PLC system, they realize closed-loop control to ensure demulsification efficiency and stability.

[0018] In this utility model, during filtration: 1. Demulsification and mixing: Anti-wear hydraulic oil enters the demulsification tank 2 through the inlet pipe 3. The first drive motor 1 starts and drives the stirring blade 17 to rotate, so that the hydraulic oil is fully mixed. At the same time, the ultrasonic generator 4 emits a 40kHz high-frequency vibration to destroy the emulsion structure in the oil, making it easier to separate water and impurities. The sensor 19 monitors the viscosity of the hydraulic oil in real time. The control system adjusts the motor speed and ultrasonic power according to the feedback to optimize the demulsification effect. 2. Adsorption and centrifugal separation of metal scraps: Hydraulic oil enters the chip removal tank 10 through the fixed pipe 8. The second drive motor 11 drives the conical guide shroud 15 to rotate at high speed, forming a centrifugal force field. Particles larger than 50μm are thrown towards the tank wall under centrifugal action. The annular permanent magnet 16 adsorbs metal impurities such as iron filings, preventing them from entering the next stage system and causing secondary pollution. 3. Gradient ceramic membrane multi-stage filtration: After preliminary purification, the hydraulic oil enters the filter tank 7 through the connecting pipe 6. The gradient ceramic membrane and silicon carbide membrane installed inside have a pore size of 20-100nm and filter nano-sized particles and colloids step by step. This membrane material has the advantages of high temperature resistance, corrosion resistance and long service life, which greatly reduces the replacement frequency and reduces maintenance costs. 4. Hydraulic oil delivery after purification: The purified hydraulic oil is discharged through drain pipe 12 and recycled into the hydraulic system. The cover 9 can be opened periodically to clean the metal particles adsorbed in the chip removal tank, thus achieving system maintenance.

[0019] Application directions of this utility model: 1. Hydraulic machinery manufacturing: Regularly purifying the hydraulic system oil can extend system life and reduce failure rate; 2. Iron and steel metallurgy: Online purification of high-temperature hydraulic oil, with strong high-temperature resistance and pollution resistance; 3. Marine engineering: Maintenance of marine hydraulic systems; corrosion-resistant, impact-resistant, and suitable for harsh environments; 4. Energy Equipment: Wind power / oil and gas hydraulic systems, supporting remote operation and maintenance to improve reliability.

[0020] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A fine filtration device for the production of industrial anti-wear hydraulic oil, comprising a demulsifier (2), characterized in that, The upper end of the demulsifying tank (2) is equipped with a stirring mechanism, and an ultrasonic generator (4) is installed on one side of the demulsifying tank (2). The lower end of the demulsifying tank (2) is connected to a fixed pipe (8), and the lower end of the fixed pipe (8) is connected to a chip removal tank (10). Both sides of the lower end of the chip removal tank (10) are connected to connecting pipes (6). The lower end of the connecting pipe (6) is equipped with a rotating device, and a conical guide shroud (15) is connected to the rotating device. An annular permanent magnet (16) is fixed on the inner side wall of the chip removal tank (10). The conical guide shroud (15) and the annular permanent magnet (16) correspond to each other. The lower ends of the two connecting pipes (6) are connected to a filter tank (7). A gradient ceramic filter membrane is installed inside the filter tank (7), and the lower end of the filter tank (7) is connected to a drain pipe (12).

2. The fine filtration device for industrial anti-wear hydraulic oil production according to claim 1, characterized in that: The stirring mechanism includes a first drive motor (1) installed in the middle of the upper end of the demulsifying tank (2). The output shaft of the first drive motor (1) is connected to a stirring rod (18). The lower end of the stirring rod (18) extends into the demulsifying tank (2). Multiple stirring blades (17) are fixed at equal intervals around the stirring rod (18).

3. The fine filtration device for industrial anti-wear hydraulic oil production according to claim 1, characterized in that: Electric valves (5) are installed on both the fixed pipe (8) and the drain pipe (12).

4. The fine filtration device for industrial anti-wear hydraulic oil production according to claim 1, characterized in that: The demulsifier (2) is connected to an inlet pipe (3) on one side of its upper end.

5. A fine filtration device for industrial anti-wear hydraulic oil production according to claim 1, characterized in that: The rotating device includes a mounting base (13) fixed to one side of the lower end of the chip removal tank (10). A second drive motor (11) is mounted on one side of the mounting base (13). A connecting rod (14) is connected to the end of the output shaft of the second drive motor (11). The connecting rod (14) passes through the side wall of the chip removal tank (10) and is connected to the middle of the lower end of the conical guide shroud (15).

6. A fine filtration device for industrial anti-wear hydraulic oil production according to claim 1, characterized in that: The chip removal tank (10) has a detachable cover (9) installed on one side of its upper end.

7. A fine filtration device for industrial anti-wear hydraulic oil production according to claim 1, characterized in that: Multiple sensors (19) are installed at equal intervals on one side of the demulsifier (2).

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