Efficient multi-stage filtering device

Abstract

The utility model discloses a high-efficiency multi-stage filtering device, which comprises at least one filtering unit and consists of a shell and a filtering component. The shell is provided with a liquid inlet pipeline and a liquid outlet pipeline, and the filtering component comprises a plurality of filter cartridges with diameters gradually reduced from outside to inside, so that multi-stage filtering is realized, and the efficiency is improved. The filter cartridge is connected to the rotating shaft, and the rotating shaft is provided with the stirring blades to assist stirring, reduce blockage and prolong the service life. And the dirty oil treatment system comprises a dirty oil settling tank, a centrifugal pump, a dirty oil treatment tank and a liquid pipeline, and further purifies the filtered dirty oil. In addition, scrapers are arranged on the inner wall of the shell, dirt holes and collecting grooves are formed in the lower portion of the filter cylinder, the scrapers extend to the dirt holes, and the cleaning efficiency is improved. Female buckles are arranged on the outer wall of the lower part of the filter cartridge, and male buckles are arranged on the dirt collecting tank, so that quick hanging is facilitated. The device is compact in structure and convenient to operate, reduces the maintenance cost, improves the filtering precision and is suitable for various liquid filtering scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to fish oil processing technical field, especially a kind of high-efficiency multistage filter device. BACKGROUND

[0002] Fish oil, as the oil extracted from the body of marine fish, is rich in a variety of n-3 series polyunsaturated fatty acids beneficial to human body, such as eicosapentaenoic acid and docosahexaenoic acid, etc. In the processing and production process of fish oil, removing impurities to improve purity is a key step. However, the existing fish oil filter mostly adopts single-layer, single-direction filtering arrangement, and fish oil is easy to condense under low temperature condition, and the deposited impurities or agglomerates are easy to cause filter screen blockage, resulting in slow filtering speed, low efficiency and affecting production progress. In addition, the traditional filtering mode is mostly passive, and fish oil is easy to solidify after being viscous and stationary, so that the filtering period is prolonged, and the purity of fish oil cannot be guaranteed.

[0003] In view of the above problems, the prior art attempts to maintain the appropriate oil temperature of fish oil by setting multiple layers of filter hoppers and heating plates to avoid plugging filter holes, but this method still has limitations in improving production progress and fish oil quality, and the heating of the heating plate may not be uniform, affecting the quality of part of fish oil. At the same time, the working principle of backflushing filter is to flush out the blocking substances in the filter material by reverse water flow, and to reduce the factors causing water head loss, but its applicability in fish oil filtration has not been fully developed. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. For this purpose, the utility model provides a kind of high-efficiency multistage filter device, which can solve the problems of low filtering efficiency, easy blockage and uneven heating existing in the prior art, and has important significance for improving the economic benefit and product quality of fish oil processing. This device should be able to realize multi-layer, multi-angle filtering, maintain appropriate filtering temperature, reduce oxidation, improve filtering speed and purity, avoid fish oil stationary solidification, realize multiple cycle filtration, to meet the needs of large-scale fish oil processing.

[0005] According to the first aspect embodiment of the utility model, a kind of high-efficiency multistage filter device, it is characterized by comprising:

[0006] A filtration device includes at least one filtration unit, which consists of a housing and filtration components. The housing has an inlet pipe and an outlet pipe. The filtration components include multiple filter cartridges, each open-end cylindrical shape with the open end facing upwards, and arranged sequentially in order of decreasing diameter from the outside to the inside. The inlet pipe extends into the smallest filter cartridge. The filtration components also include a drive motor and a rotating shaft. The rotating shaft extends vertically into the housing. The filter cartridges are connected to the rotating shaft and can rotate with it. The drive motor is connected to the rotating shaft. The rotating shaft has stirring blades circumferentially along its direction. The filter cartridges have different pore sizes, gradually decreasing from the inside to the outside. The lower end of the rotating shaft has multiple steps, with the outer diameter gradually decreasing from top to bottom. Each filter cartridge has a connecting hole at its bottom that mates with each step of the rotating shaft. The rotating shaft passes through the connecting hole. Each step at the lower end of the rotating shaft has a fastening nut. The bottom of the filter cartridge is clamped between the multiple steps and the fastening nuts.

[0007] The sludge treatment system includes a sludge sedimentation tank, a centrifugal pump, a sludge treatment tank, and a liquid pipeline. The outlet of the sludge sedimentation tank is connected to the centrifugal pump and the sludge treatment tank in sequence through the liquid pipeline. The inlet of the sludge sedimentation tank is connected to the outlet of the filtration unit. The sludge treatment tank is equipped with multiple filter plates. The pore size of adjacent filter plates decreases according to the direction of the filtered liquid flow, and the pore size of each filter plate increases from top to bottom.

[0008] A high-efficiency multi-stage filtration device according to an embodiment of the present invention has at least the following beneficial effects:

[0009] According to this embodiment of the invention, the filter cartridges are sequentially assembled in a manner where the diameter gradually decreases from the outside to the inside, and the filtration pore size of the filter cartridges gradually decreases from the inside to the outside. This design enables multi-stage filtration, thereby improving filtration efficiency. The stirring blades on the rotating shaft assist in stirring, resulting in a more uniform distribution of impurities during filtration, reducing the risk of localized clogging of the filter cartridges, extending their service life, and reducing maintenance costs. The assembled design of the filter cartridges and the multi-step structure of the rotating shaft make the entire filtration device compact, space-saving, and easy to install and transport. The transmission connection between the drive motor and the rotating shaft simplifies the rotation of the filter cartridges, and the filter cartridges can be easily fixed and replaced using tightening nuts, improving operational convenience. The sludge and oil treatment system, through the combination of a sludge and oil sedimentation tank, a centrifugal pump, a sludge and oil treatment tank, and liquid pipelines, can effectively treat filtered sludge and oil. The design of multiple filter plates within the sludge and oil treatment tank further purifies the sludge and oil. The pore size of the filter plates within the sludge and oil treatment tank decreases according to the direction of the filtered liquid flow, and the pore size of each filter plate increases from top to bottom. This design helps improve filtration accuracy and ensures the quality of the filtered liquid.

[0010] In summary, the high-efficiency multi-stage filtration device of this invention has significant beneficial effects in improving filtration efficiency, reducing maintenance costs, simplifying operation procedures, and enhancing the ability to treat waste oil.

[0011] According to some embodiments of the present invention, the inner wall of the outer shell is provided with scrapers, each of the scrapers extending into the interior of a filter cartridge and closely adhering to the inner wall of the filter cartridge and arranged in a spiral shape.

[0012] According to some embodiments of the present invention, each filter cartridge is provided with a dirt hole at the bottom, and a dirt collection groove is provided on the outer wall of the lower part of the filter cartridge outside the dirt hole. The scraper extends from the opening of the filter cartridge to the dirt hole.

[0013] According to some embodiments of the present invention, the lower outer wall of the filter cartridge is provided with a female buckle outside the dirt hole, and the dirt collection groove is provided with a male buckle to cooperate with the female buckle of the filter cartridge. Through the cooperation of the male buckle and the female buckle, each dirt collection groove is hooked to the outer wall of the filter cartridge.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0016] Fig. 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Fig. 2 This is a schematic diagram of the filtering unit according to an embodiment of the present invention.

[0018] 100. Filter unit; 110. Housing; 111. Inlet pipe; 112. Outlet pipe; 113. Scraper; 120. Filter component; 121. Filter cartridge; 122. Drive motor; 123. Rotating shaft; 124. Stirring blade; 125. Step; 126. Fastening nut; 127. Sludge hole; 128. Sludge collection tank; 210. Sludge and oil sedimentation tank; 220. Centrifugal pump; 230. Sludge and oil treatment tank; 231. Filter plate; 240. Liquid pipe. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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.

[0021] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figs. 1-2 A high-efficiency multi-stage filtration device according to a first aspect embodiment of the present invention is characterized in that it comprises:

[0024] A filtration device includes at least one filtration unit 100, which consists of a housing 110 and a filter element 120. The housing 110 is provided with an inlet pipe 111 and an outlet pipe 112. The filter element 120 includes multiple filter cartridges 121. The filter cartridges 121 are cylindrical with one end open and facing upward. They are sequentially assembled in a manner where the diameter gradually decreases from the outside to the inside. Because the filter cartridges 121 are sequentially assembled in a manner where the diameter gradually decreases from the outside to the inside, and the filtration pore size of the filter cartridges 121 gradually decreases from the inside to the outside, this design enables multi-stage filtration, thereby improving filtration efficiency. The liquid inlet pipe 111 extends into the smallest filter cartridge 121. The filter component 120 also includes a drive motor 122 and a rotating shaft 123. The rotating shaft 123 extends vertically into the housing 110. The filter cartridge 121 is connected to the rotating shaft 123 and can rotate with the rotating shaft 123. The drive motor 122 is driven by the rotating shaft 123. This drive connection makes the rotation of the filter cartridge 121 easy, and the filter cartridge 121 can be easily fixed and replaced by the fastening nut 126, improving the convenience of operation. The rotating shaft 123 is provided with stirring blades 124 circumferentially along the direction of the rotating shaft 123. The stirring blades 124 on the rotating shaft 123 can assist in stirring, making the distribution of impurities more uniform during the filtration process, reducing the risk of local clogging of the filter cartridge 121, extending the service life of the filter cartridge 121, and reducing maintenance costs. The filter cartridges 121 have different pore sizes, gradually decreasing from the inside to the outside. The lower end of the rotating shaft 123 has multiple steps 125, with the outer diameter gradually decreasing from top to bottom. Each filter cartridge 121 has a connecting hole at the bottom that matches each step 125 of the rotating shaft 123. The rotating shaft 123 passes through the connecting hole. Each step of the rotating shaft 123 has a fastening nut 126 at its lower end. The bottom of the filter cartridge 121 is clamped between the multiple steps 125 and the fastening nut 126. The assembly design of the filter cartridges 121 and the structure of the multiple steps 125 of the rotating shaft 123 make the entire filtration device compact, space-saving, and easy to install and transport.

[0025] The sludge treatment system includes a sludge settling tank 210, a centrifugal pump 220, a sludge treatment tank 230, and a liquid pipeline 240. Through the combination of the sludge settling tank 210, centrifugal pump 220, sludge treatment tank 230, and liquid pipeline 240, the system can effectively treat filtered sludge. The design of multiple filter plates 231 within the sludge treatment tank 230 further purifies the sludge. The outlet of the sludge settling tank 210 is connected sequentially to the centrifugal pump 220 and the sludge treatment tank 230 via the liquid pipeline 240. The inlet of the sludge settling tank 210 is connected to the outlet of the filtration unit 100. The sludge treatment tank 230 contains multiple filter plates 231. The pore size of adjacent filter plates 231 decreases according to the direction of the filtered liquid flow, and the pore size of each filter plate 231 increases from top to bottom. The pore size of the filter plate 231 inside the sludge and oil treatment tank 230 decreases according to the direction of the filtered liquid flow, and the pore size of each filter plate 231 increases from top to bottom. This design helps to improve the filtration accuracy and ensure the quality of the filtered liquid.

[0026] A high-efficiency multi-stage filtration device according to an embodiment of the present invention has at least the following beneficial effects:

[0027] According to this embodiment of the invention, the filter cartridges 121 are sequentially assembled in a manner where their diameter gradually decreases from the outside to the inside, and the filtration pore size of the filter cartridges 121 gradually decreases from the inside to the outside. This design enables multi-stage filtration, thereby improving filtration efficiency. The stirring blades 124 on the rotating shaft 123 can assist in stirring, making the distribution of impurities more uniform during the filtration process, reducing the risk of local clogging of the filter cartridges 121, extending the service life of the filter cartridges 121, and reducing maintenance costs. The assembled design of the filter cartridges 121 and the multi-step structure 125 of the rotating shaft 123 make the entire filtration device compact, occupy little space, and facilitate installation and transportation. The transmission connection between the drive motor 122 and the rotating shaft 123 makes the rotation operation of the filter cartridges 121 simple, and the filter cartridges 121 can be easily fixed and replaced by the fastening nut 126, improving the convenience of operation. The sludge and oil treatment system, through the combination of a sludge and oil settling tank 210, a centrifugal pump 220, a sludge and oil treatment tank 230, and liquid pipelines 240, can effectively treat filtered sludge and oil. The design of multiple filter plates 231 within the sludge and oil treatment tank 230 further purifies the sludge and oil. The pore size of the filter plates 231 within the sludge and oil treatment tank 230 decreases according to the direction of the filtered liquid flow, and the pore size of each filter plate 231 increases from top to bottom. This design helps to improve filtration accuracy and ensure the quality of the filtered liquid.

[0028] In summary, the high-efficiency multi-stage filtration device of this invention has significant beneficial effects in improving filtration efficiency, reducing maintenance costs, simplifying operation procedures, and enhancing the ability to treat waste oil.

[0029] According to some embodiments of this utility model, the inner wall of the outer shell 110 is provided with scrapers 113, each scraper 113 extending into the interior of one of the filter cartridges 121 and closely adhering to the inner wall of the filter cartridge 121 in a spiral arrangement. The scrapers 113 help to scrape away impurities adhering to the inner wall of the filter cartridge 121 during rotation, reducing scale buildup and improving the self-cleaning ability of the filtration device. The spiral arrangement of the scrapers 113 close to the inner wall of the filter cartridge 121 pushes impurities towards the bottom of the filter cartridge 121 during rotation, preventing impurities from accumulating on the inner wall of the filter cartridge 121, thereby improving the filtration effect. Because the scrapers 113 can promptly remove impurities from the inner wall of the filter cartridge 121, the risk of clogging caused by impurity accumulation in the filter cartridge 121 is reduced, ensuring the continuous and stable operation of the filtration device.

[0030] In summary, the design of the scraper 113 in this utility model has significant beneficial effects in improving filtration efficiency, reducing maintenance workload, extending the life of the filter cartridge 121, and reducing operating costs.

[0031] According to some embodiments of this utility model, each filter cartridge 121 is provided with a dirt hole 127 at its lower part, and a dirt collection groove 128 is provided on the lower outer wall of the filter cartridge 121 outside the dirt hole 127. The scraper 113 extends from the opening of the filter cartridge 121 to the dirt hole 127. By providing a dirt hole 127 and a dirt collection groove 128 at the lower part of the filter cartridge 121, the dirt separated during the filtration process can be effectively collected, facilitating subsequent processing and cleaning. The design of the scraper 113 extending from the opening of the filter cartridge 121 to the dirt hole 127 allows the scraper 113 to push the dirt on the inner wall of the filter cartridge 121 towards the dirt hole 127 during rotation, improving cleaning efficiency. The design of the dirt collection groove 128 prevents dirt from overflowing from the dirt hole 127 at the bottom of the filter cartridge 121, maintaining the cleanliness of the filtration device and the tidiness of the working environment.

[0032] In summary, the design of the dirt hole 127 and dirt collection groove 128 at the bottom of the filter cartridge 121 and the extension of the scraper 113 in this utility model have significant beneficial effects in improving cleaning efficiency, reducing dirt overflow, facilitating dirt handling, and preventing secondary pollution.

[0033] According to some embodiments of this utility model, the lower outer wall of the filter cartridge 121 is provided with a female buckle outside the dirt hole 127, and the dirt collection groove 128 is provided with a male buckle to cooperate with the female buckle of the filter cartridge 121. Through the cooperation of the male buckle and the female buckle, each dirt collection groove 128 is hooked onto the outer wall of the filter cartridge 121. Through the cooperation of the male and female buckles, the dirt collection groove 128 can be quickly hooked onto the outer wall of the filter cartridge 121, which is convenient for disassembly and installation and improves the efficiency of maintenance and cleaning. The fastening structure provides a stable connection method to ensure that the dirt collection groove 128 will not fall off when the filter cartridge 121 rotates or vibrates, maintaining the stability of the structure. The hooking method of the dirt collection groove 128 makes cleaning or replacement without tools, simplifying the operation process and reducing maintenance costs.

[0034] In summary, the design of the female thread on the lower outer wall of the filter cartridge 121 and the male thread on the waste collection trough 128 in this utility model has significant beneficial effects in improving maintenance efficiency, ensuring structural stability, and facilitating cleaning and replacement.

[0035] The embodiments described above with reference to the accompanying drawings have been described in detail. However, the embodiments are not limited to those described above. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A high efficiency multi-stage filtration device, characterized by, The application relates to a filter device and a system for treating dirty oil. The filter device comprises at least one filter unit (100), which is composed of a shell (110) and a filter component (120), the shell (110) is provided with an inlet pipe (111) and an outlet pipe (112), the filter component (120) comprises a plurality of filter cylinders (121), the filter cylinders (121) are open at one end and are sequentially sleeved in a gradually decreasing diameter from outside to inside, the inlet pipe (111) extends to the inside of the smallest filter cylinder (121), the filter component (120) further comprises a driving motor (122) and a rotating shaft (123), the rotating shaft (123) extends vertically to the inside of the shell (110), the filter cylinders (121) are connected to the rotating shaft (123) and can rotate with the rotating shaft (123), the driving motor (122) is in transmission connection with the rotating shaft (123), the rotating shaft (123) is provided with stirring blades (124) in the circumferential direction along the rotating shaft (123), the filter holes of the filter cylinders (121) are of different sizes and gradually decrease from inside to outside, the lower end of the rotating shaft (123) is provided with a plurality of steps (125) with gradually decreasing outer diameters from top to bottom, each filter cylinder (121) is provided with a connecting hole at the bottom matched with each step (125) of the rotating shaft (123), the rotating shaft (123) penetrates through the connecting hole, the lower end of the rotating shaft (123) is provided with a fastening nut (126) at each step, and the filter cylinder (121) is clamped between the plurality of steps (125) and the fastening nut (126). The system for treating dirty oil comprises a dirty oil precipitation tank (210), a centrifugal pump (220), a dirty oil treatment tank (230) and a liquid pipe (240), the outlet of the dirty oil precipitation tank (210) is connected with the centrifugal pump (220) and the dirty oil treatment tank (230) in sequence through the liquid pipe (240), the inlet of the dirty oil precipitation tank (210) is connected with the outlet of the filter unit (100), and the dirty oil treatment tank (230) is provided with a plurality of filter plates (231), the hole diameters of the filter plates (231) decrease in sequence according to the flowing direction of the filtered liquid, and the hole diameters of the filter plates (231) increase from top to bottom.

2. The high efficiency multi-stage filtration device of claim 1, wherein: The inner wall of the shell (110) is provided with scrapers (113), each scraper (113) extends to the inside of one filter cylinder (121) and is in close contact with the inner wall of the filter cylinder (121) and is arranged in a spiral shape.

3. The high efficiency multi-stage filtration device of claim 2, wherein: The lower part of each filter cylinder (121) is provided with a dirt hole (127), the outer wall of the lower part of the filter cylinder (121) is provided with a dirt collecting groove (128) outside the dirt hole (127), and the scraper (113) extends from the opening of the filter cylinder (121) to the dirt hole (127).

4. The high efficiency multi-stage filtration device of claim 3, wherein: The lower outer wall of the filter cartridge (121) is provided with a female buckle outside the dirt hole (127), and the dirt collecting groove (128) is provided with a male buckle matched with the female buckle of the filter cartridge (121), and each dirt collecting groove (128) is hung on the outer wall of the filter cartridge (121) through the cooperation of the male buckle and the female buckle.

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