Oil washing filter device

Abstract

The application relates to a washing oil filtering device, which comprises a filter, a washing oil separating device and a recovery device; the feeding end of the filter is suitable for introducing washing oil to be filtered; the discharging end of the filter is connected with the feeding end of the washing oil separating device; the discharging end of the washing oil separating device is connected with the feeding end of the recovery device; the recovery device comprises an oil storage tank and a recovery tank; the top discharging end of the washing oil separating device is connected with the feeding end of the oil storage tank, and the bottom discharging end of the washing oil separating device is connected with the feeding end of the recovery tank; through the cooperative work of the filter and the washing oil separating device, the combination design of primary filtering and secondary separation not only shortens the whole washing oil filtering treatment time, improves the production efficiency, but also ensures that the treated washing oil can better absorb oil mist; the separated washing oil can be directly filled into an oil mist recovery system, resource recycling is realized, the production cost is reduced, and the economic benefit of enterprises is improved.

Description

Technical Field

[0001] This application relates to the field of oil mist recovery technology, and in particular to an oil washing and filtration device. Background Technology

[0002] A large amount of oil mist is generated during the aluminum foil rolling process. In order to reduce the pollution of the production environment by oil mist and to achieve resource recycling, the industry generally adopts the method of washing oil to absorb the oil mist generated during the aluminum foil rolling process, thereby achieving the purpose of purifying the air. However, the oil mist generated by aluminum foil rolling contains various impurities such as aluminum coil scraps, aluminum powder and oil droplets. As the oil mist is continuously absorbed by the washing oil, these impurities will gradually deposit in the washing oil, causing its ability to adsorb oil mist to gradually decrease.

[0003] Therefore, how to filter impurities in wash oil has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, this application proposes a washing oil filtration device, comprising: a filter, a washing oil separation device, and a recovery device;

[0005] The filter's inlet is suitable for introducing the wash oil to be filtered, and the filter's outlet is connected to the inlet of the wash oil separation device; the wash oil separation device's outlet is connected to the inlet of the recovery device.

[0006] The recycling system includes: an oil storage tank and a recycling bin;

[0007] The top discharge end of the washing oil separation device is connected to the inlet end of the oil storage tank, and the bottom discharge end of the washing oil separation device is connected to the inlet end of the recovery tank.

[0008] In one possible implementation, a booster pump is also included; the booster pump is located at the feed end of the filter.

[0009] In one possible implementation, a pressure sensing device is installed on the pipeline between the booster pump and the filter.

[0010] In one possible implementation, a differential pressure detection device is also included; the differential pressure detection device is connected in parallel with the filter.

[0011] In one possible implementation, the filter includes: a housing, feet, and a filter screen; the housing has a hollow cavity, and the filter screen is embedded in the cavity of the housing; the feet are fixedly mounted on the bottom of the housing.

[0012] In one possible implementation, there are two or more legs; the two or more legs are arranged equidistantly along the circumference of the housing.

[0013] In one possible implementation, the top of the housing has a cover for opening or closing the housing.

[0014] In one possible implementation, a valve assembly is provided between the wash oil separation unit and the recovery unit.

[0015] In one possible implementation, the wash oil separation device is a VDF vortex separator filter.

[0016] The beneficial effects of the application itself

[0017] This application applies to the filtration of wash oil in an oil mist recovery system. By setting up a filter, the wash oil is initially filtered to ensure that the wash oil entering the subsequent processing stage is relatively clean. The initial filtration not only improves the efficiency of subsequent processing but also reduces wear on the wash oil separation device. The wash oil that has passed the initial filtration enters the wash oil separation device for secondary separation. Due to the density difference between impurities (such as aluminum coil fragments, aluminum powder, and oil droplets) and wash oil, under the action of centrifugal force, the impurities are thrown against the inner wall of the wash oil separation device and deposited at the bottom, while the relatively pure wash oil is guided to the top outlet and flows out, further improving the cleanliness of the wash oil and avoiding the decrease in the wash oil's ability to absorb oil mist due to impurities. Through the combined design of initial filtration and secondary separation, this application not only shortens the entire wash oil filtration process and improves production efficiency but also ensures that the treated wash oil can better absorb oil mist. The separated wash oil can be directly added to the oil mist recovery system to realize resource recycling, reduce production costs, and improve the economic benefits of enterprises.

[0018] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0020] Figure 1 This is a schematic diagram of the structure of the oil washing and filtration device of this application;

[0021] Figure 2 Showing the main view of the filter.

[0022] Filter—100; Housing—110; Support legs—120; Top cover—140; Hinge—141; Snap fastener—142; First flange—151; Second flange—152; Wash oil separator—210; Oil storage tank—220; Recovery tank—230; Valve—240; Booster pump—310; Pressure detection device—320; Differential pressure detection device—330; First pipeline—410; Second pipeline—420; Fourth pipeline—430; Wash oil tank—440. Detailed Implementation

[0023] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0024] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0027] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0028] This application proposes an oil washing and filtering device, such as Figures 1 to 2As shown, it includes: a filter 100, a wash oil separation device 210, and a recovery device; the feed end of the filter 100 is suitable for introducing wash oil to be filtered, and the discharge end of the filter 100 is connected to the feed end of the wash oil separation device 210; the discharge end of the wash oil separation device 210 is connected to the feed end of the recovery device; the recovery device includes: an oil storage tank 220 and a recovery tank 230; the top discharge end of the wash oil separation device 210 is connected to the feed end of the oil storage tank, and the bottom discharge end of the wash oil separation device 210 is connected to the feed end of the recovery tank 230.

[0029] It should be noted that the feed end of filter 100 is connected to the washing oil tank 440 containing the oil to be filtered via the first pipe 410. Filter 100 is suitable for preliminary filtration of the washing oil flowing through the pipe, ensuring that the washing oil entering the subsequent processing stage is relatively clean, thereby improving the efficiency and quality of washing oil treatment. The discharge end of filter 100 is connected to the feed end of washing oil separation device 210 via the second pipe 420. Filter 100 transports the pre-filtered washing oil to washing oil separation device 210, which utilizes the rotational generation... Centrifugal force separates the pre-filtered wash oil, thereby removing impurities from the wash oil. The top discharge end of the wash oil separation device 210 is connected to the cavity of the oil storage tank 220 through a third pipe. The separated wash oil enters the oil storage tank 220 through the third pipe. The wash oil in the oil storage tank 220 can be directly added to the oil mist recovery system. The bottom discharge end of the wash oil separation device 210 is connected to the cavity of the recovery tank 230 through a fourth pipe 430. The removed impurities enter the recovery tank 230 through the fourth pipe 430, which facilitates the unified treatment of impurities.

[0030] This application applies to the filtration of wash oil in an oil mist recovery system. By setting up a filter 100, the wash oil is initially filtered to ensure that the wash oil entering the subsequent processing stage is relatively clean. The initial filtration not only improves the efficiency of subsequent processing but also reduces wear on the wash oil separation device 210. The wash oil that has passed the initial filtration enters the wash oil separation device 210 for secondary separation. Due to the difference in density between impurities (such as aluminum coil fragments, aluminum powder, and oil droplets) and wash oil, under the action of centrifugal force, the impurities are thrown against the inner wall of the wash oil separation device 210 and deposited at the bottom, while the relatively pure wash oil is guided to the top outlet and flows out, further improving the cleanliness of the wash oil and avoiding the decrease in the wash oil's ability to absorb oil mist due to impurities. Through the combined design of initial filtration and secondary separation, this application not only shortens the entire wash oil filtration process and improves production efficiency but also ensures that the treated wash oil can better absorb oil mist. The separated wash oil can be directly added to the oil mist recovery system to realize resource recycling, reduce production costs, and improve the economic benefits of enterprises.

[0031] In one possible implementation, the wash oil separation device 210 is a VDF vortex separator filter.

[0032] In one possible implementation, a booster pump 310 is also included. The booster pump 310 is located at the inlet end of the filter 100 and is used to pressurize the wash oil in the pipeline. It should be noted that the booster pump 310 is located on the first pipeline 410 and at the inlet end of the filter 100. The booster pump 310 is used to increase the pressure and flow rate of the wash oil, making the flow of the wash oil in the filter 100 and the wash oil separation device 210 smoother, reducing the resistance to the flow of the wash oil, improving the filtration efficiency, and allowing impurities in the wash oil to be filtered more effectively. At the same time, the higher flow rate and pressure give the wash oil higher kinetic energy when it enters the wash oil separation device 210, ensuring that the impurities in the wash oil can obtain sufficient centrifugal force during the centrifugal separation process, thus improving the separation efficiency of the wash oil.

[0033] Furthermore, the booster pump 310 is configured with a pressure greater than 0.3 MPa. Preferably, the booster pump 310 adopts the HD series internal gear pump in the prior art, which has the characteristics of small flow rate and high head, and is suitable for conveying high viscosity oils.

[0034] In one possible implementation, a pressure detection device 320 is also included; the pressure detection device 320 is installed on the pipeline between the booster pump 310 and the filter 100. It should be noted that the pressure detection device 320 is fixedly installed on the first pipeline 410, and the detection end of the pressure detection device 320 extends into the first pipeline 410. It is suitable for detecting pressure changes of the wash oil within the first pipeline 410. Operators adjust the power of the booster pump 310 by observing the data detected by the pressure detection device 320, thus preventing equipment damage or affecting the filtration and separation effect of the wash oil due to abnormal pressure.

[0035] Furthermore, the pressure detection device 320 adopts an existing model stainless steel shock-resistant radial pressure gauge.

[0036] In one possible implementation, a differential pressure detection device 330 is also included; the differential pressure detection device 330 is connected in parallel with the filter 100. It should be noted that the detection ends of the differential pressure detection device 330 are respectively located at the inlet and outlet of the filter 100; the differential pressure detection device 330 is suitable for detecting the pressure difference between the inlet and outlet of the filter 100. The data detected by the differential pressure detection device 330 can directly reflect the degree of clogging of the filter 100. Operators can replace or clean the filter 100 in a timely manner based on the data detected by the differential pressure detection device 330, thereby ensuring the stable operation of the entire system.

[0037] Furthermore, the differential pressure detection device 330 adopts the existing CMS differential pressure switch. The existing CMS differential pressure switch has an alarm function. When the differential pressure detection device 330 detects a pressure exceeding a preset threshold, the differential pressure detection device 330 activates the alarm function. The preset threshold is ≥0.1MPa.

[0038] In one possible implementation, such as Figure 2 As shown, the filter 100 includes: a housing 110, a support leg 120, and a filter screen; the housing 110 has a hollow cavity, the filter screen is embedded in the cavity of the housing 110, and the support leg 120 is fixedly installed at the bottom of the housing 110.

[0039] It should be noted that an inlet is provided on the outer wall of the outer casing 110, and the inlet is connected to the cavity of the outer casing 110. The inlet is suitable for connecting with the outlet of the first pipe 410. An outlet is provided at the bottom of the outer casing 110, and the outlet is suitable for connecting with the inlet of the second pipe 420. The main body of the outer casing 110 is a hollow barrel-shaped structure. The hollow cavity of the outer casing 110 is suitable for installing a filter screen. The outer contour of the filter screen is adapted to the cavity of the outer casing 110. The filter screen is embedded in the cavity of the outer casing 110. When the wash oil enters the cavity of the outer casing 110 through the inlet, the filter screen filters the impurities in the wash oil. After the filtered wash oil passes through the filter screen, it flows into the next separation process from the outlet. The support leg 120 is used to provide support for the outer casing 110, so that the filter 100 can be placed stably on the ground. At the same time, by setting the support leg 120, the filter 100 is kept at a certain distance from the ground, avoiding direct contact between the filter 100 and the ground, and reducing the corrosion of the filter 100 by the ground.

[0040] In one possible implementation, such as Figure 2 As shown, the filter 100 is connected to the outlet of the first pipe 410 through a flange assembly; specifically, the inlet of the housing 110 is provided with a first flange 151, which is fixedly installed at the inlet of the housing 110. Correspondingly, the outlet of the first pipe 410 is fixedly installed with a second flange 152, which matches the first flange 151. The housing 110 is connected to the first pipe 410 through the flange assembly.

[0041] Furthermore, the outlet of the filter 100 is connected to the inlet of the second pipe 420 via the second flange 152 assembly. The inlet of the housing 110 is equipped with the second flange 152, which is fixedly installed at the inlet of the housing 110. Correspondingly, the inlet of the second pipe 420 is equipped with a second fixed flange, which matches the second flange 152. The housing 110 is connected to the second pipe 420 via the second flange 152 assembly. By setting the first flange 151 assembly and the second flange assembly, the installation of the filter 100 becomes more convenient and faster. This connection method not only reduces installation time but also lowers installation difficulty. Furthermore, when maintenance is required, only the flange assembly needs to be disassembled for easy maintenance and replacement.

[0042] In one possible implementation, there are two or more support legs 120; the two or more support legs 120 are arranged at equal intervals along the circumference of the housing 110; preferably, there are three support legs 120, which are distributed in a triangle at the bottom of the housing 110. By setting three support legs 120, the center of the pipeline filter device is always located in the center position, reducing the risk of the pipeline filter device tipping over and ensuring that the pipeline filter device is placed stably on the ground.

[0043] In one possible implementation, such as Figure 2 As shown, the top of the outer casing 110 is provided with a top cover 140 for opening or closing the outer casing 110. It should be noted that the top of the outer casing 110 is provided with a hinge 141 and a latch 142, with the hinge 141 and latch 142 positioned opposite each other. One end of the top cover 140 is hinged to the outer casing 110 via the hinge 141, and the other end of the top cover 140 is connected to the outer casing via the latch 142. The connection between one end of the top cover 140 and the outer casing 110 via the hinge 141 allows the top cover 140 to rotate around the hinge point to open or close the outer casing 110; the other end of the top cover 140 is connected to the outer casing 110 via the latch 142. When the top cover 140 needs to be closed, one end of the top cover 140 is fastened to the buckle 142 to achieve a tight connection between the top cover 140 and the outer shell 110. When it needs to be opened, the buckle 142 is released, allowing the top cover 140 to rotate around the hinge 141 to open. Through the design of the hinge 141 and the buckle 142, operators can easily open the top cover 140 to perform maintenance work such as replacing, inspecting, and cleaning the filter screen. There is no need to use complicated tools or perform tedious disassembly steps, making the operation simple and quick.

[0044] Furthermore, the buckle 142 includes a bolt and a hinge seat. Correspondingly, the upper cover 140 has a slot. The width of the slot is greater than the diameter of the bolt shank and less than the diameter of the bolt nut. The hinge seat is fixedly installed on the outer shell 110. One end of the bolt shank is hinged to the hinge seat. By rotating the bolt around the hinge seat, the bolt shank is engaged in the slot of the upper cover 140. Then, the nut is rotated. The nut and the hinge seat cooperate to provide sufficient clamping force, thereby fixing the upper cover 140 at the top opening of the shell.

[0045] In one possible implementation, filter 100 uses an existing model KSF-304-DN400-F80 basket (pipeline) filter, which can filter impurities in wash oil with a diameter greater than 100 micrometers.

[0046] In one possible implementation, a valve assembly 240 is provided between the wash oil separation device 210 and the recovery device. It should be noted that the valve assembly 240 includes two valves 240, which are respectively installed on the third and fourth pipes 430. By using the valve assembly 240, when disassembling the recovery device, it is not necessary to empty the entire wash oil filtration device or take complex temporary sealing measures; simply closing the corresponding valve assembly 240 allows for direct disassembly of the recovery device, greatly simplifying the operation process and saving time and labor costs.

[0047] Furthermore, to facilitate the maintenance and disassembly of the booster pump 310 and the filter 100, valves 240 are provided at both the inlet and outlet ends of the booster pump 310 and the inlet and outlet ends of the filter 100. The outlet end of the booster pump 310 and the inlet end of the filter 100 can share a single valve 240. By closing the valves 240 at both ends of the equipment, the operator can perform maintenance, disassembly, or replacement of the booster pump 310 or the filter 100.

[0048] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An oil washing and filtering device, characterized in that, include: Filters, wash oil separation devices, and recovery devices; The feed end of the filter is suitable for introducing the wash oil to be filtered, and the discharge end of the filter is connected to the feed end of the wash oil separation device. The discharge end of the washing oil separation device is connected to the inlet end of the recycling device; The recycling device includes: an oil storage tank and a recycling tank; The top discharge end of the washing oil separation device is connected to the inlet end of the oil storage tank, and the bottom discharge end of the washing oil separation device is connected to the inlet end of the recycling tank.

2. The oil washing and filtering device according to claim 1, characterized in that, It also includes a booster pump; The booster pump is located at the feed end of the filter.

3. The oil washing and filtering device according to claim 2, characterized in that, Pressure detection device; The pressure detection device is installed on the pipeline between the booster pump and the filter.

4. The oil washing and filtering device according to claim 1, characterized in that, It also includes a differential pressure detection device; The differential pressure detection device is connected in parallel with the filter.

5. The oil washing and filtering device according to claim 1, characterized in that, The filter includes: a housing, legs, and a filter screen; The outer shell has a hollow cavity, and the filter screen is embedded in the cavity of the outer shell; The support legs are fixedly mounted on the bottom of the housing.

6. The oil washing and filtering device according to claim 5, characterized in that, The support leg has two or more; Two or more of the legs are arranged at equal intervals along the circumference of the housing.

7. The oil washing and filtering device according to claim 5, characterized in that, The top of the housing is provided with a cover for opening or closing the housing.

8. The oil washing and filtering device according to claim 1, characterized in that, A valve assembly is provided between the washing oil separation device and the recovery device.

9. The oil washing and filtering device according to claim 1, characterized in that, The wash oil separation device is a VDF vortex separator filter.

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