Waste oil regeneration device with filtering structure

Abstract

The present application relates to waste oil regeneration technical field, specifically, it is a kind of waste oil regeneration device with filter structure.It includes device main body, device main body includes regeneration cylinder, regeneration cylinder's bottom is inserted with inlet pipe, the outer wall of one side of inlet pipe is located in filter cavity and is provided with filter assembly for filtering waste oil, filter assembly includes primary filter mechanism and final filter mechanism, primary filter mechanism is used to carry out preliminary filtration to waste oil, and the upper and lower ends of final filter mechanism are connected with starting assembly, starting assembly can drive final filter mechanism to carry out centrifugal secondary filtration to waste oil after preliminary filtration under rotating state, starting assembly can assist waste oil to carry out partition type sedimentation filtration in conjunction with final filter mechanism under static state.The filter assembly in the application contains primary filter mechanism and final filter mechanism, starting assembly can drive final filter mechanism to carry out centrifugal secondary filtration or assist waste oil to carry out partition type sedimentation filtration, and the filtering effect is improved.

Description

Technical Field

[0001] This invention relates to the field of waste oil regeneration technology, and more specifically, to a waste oil regeneration device with a filtration structure. Background Technology

[0002] With the development of industry, industrial lubricating oil plays a vital role in equipment operation. However, industrial lubricating oil will gradually deteriorate during use due to oxidation, pollution and impurities. Nevertheless, waste industrial lubricating oil still contains a large amount of usable base oil and additive components. Therefore, regenerating waste industrial lubricating oil can effectively recover these valuable resources, thereby reducing the demand for new oil.

[0003] Currently, industrial lubricant regeneration typically involves steps such as pretreatment, distillation, adsorption, and blending. Among these, the filtration stage in the pretreatment phase is particularly critical. This is because during the operation of industrial equipment, the continuous friction between various mechanical parts causes the metal components within the equipment to gradually generate tiny metal particles or flakes. These metal impurities circulate with the lubricant within the equipment and eventually mix into the industrial waste lubricant. Therefore, filtration regeneration equipment is often used in pretreatment. In addition, during the use of industrial lubricants, oxidation reactions occur over time, producing oxidation products such as gums and asphaltenes. These substances increase the viscosity of the lubricant, which in turn causes some metal fragments to adhere to the filter pores during the filtration regeneration of waste lubricant, greatly affecting the filtration effect of the waste lubricant.

[0004] In view of this, we propose a waste oil regeneration device with a filtration structure. Summary of the Invention

[0005] The purpose of this invention is to provide a waste oil regeneration device with a filtration structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention aims to provide a waste oil regeneration device with a filtration structure, comprising a device body, the device body including a regeneration cylinder, the regeneration cylinder having a filtration chamber inside, oil outlet pipes fixedly connected to both sides of the regeneration cylinder, an inlet pipe inserted into the bottom of the regeneration cylinder, and a liquid extraction component for extracting and filtering waste oil installed in the middle of the inlet pipe.

[0007] The feed pipe is located on the outer wall of one side inside the filter chamber and is equipped with a filter assembly for filtering waste oil. The filter assembly includes a primary filter mechanism and a final filter mechanism. The primary filter mechanism is used to perform preliminary filtration of waste oil. At the same time, combined with the high pressure generated during waste oil transportation, it can help break up large pieces of waste in the waste oil.

[0008] The upper and lower ends of the final filter mechanism are connected to a starting component. The feed pipe is in a vertical state inside the filter chamber. When the starting component is rotating, it can drive the final filter mechanism to perform centrifugal secondary filtration on the waste oil after primary filtration. When the starting component is stationary, it can assist the waste oil in partitioned sedimentation filtration in conjunction with the final filter mechanism.

[0009] As a further improvement to this technical solution, the liquid extraction component includes a first pump and a second pump installed in the middle of the feed pipe. The first pump is located at the end of the feed pipe that extends out of the filter chamber, and the second pump is located inside the filter chamber. The end of the feed pipe located inside the filter chamber has an oil outlet, and the top of the inner cavity of the feed pipe has a guide surface.

[0010] As a further improvement to this technical solution, the primary filtration mechanism includes a fixed platform fixedly connected to the outer wall of the feed pipe, a primary filter ring fixedly connected to the top of the fixed platform, a top pressure plate snapped onto the top of the feed pipe, and a primary filter chamber formed between the top pressure plate, the primary filter ring and the fixed platform. The primary filter chamber is connected to the oil outlet, and the bottom of the inner cavity of the primary filter chamber is inclined.

[0011] As a further improvement to this technical solution, the final filtration mechanism includes an inner ring fixedly connected to the bottom of the fixed platform. The inner diameter of the inner ring is larger than that of the initial filter ring. A final filter ring is sleeved on the outside of the inner ring. A top plate is snapped onto the top of the final filter ring, and a bottom plate is fixedly connected to the bottom of the final filter ring. A rotating groove is formed on the inner wall of the filtration chamber, and the rotating groove is located at the lower end of the oil outlet pipe. The bottom plate rotates inside the rotating groove, and the bottom of the inner ring is attached to the top of the bottom plate. A final filtration chamber is formed between the final filter ring and the inner ring, and an outer chamber is formed between the final filter ring and the inner wall of the regeneration cylinder. Both oil outlet pipes are connected to the outer chamber.

[0012] As a further improvement to this technical solution, four protruding strips are installed at the lower end of the end filter ring near the end filter chamber, and four strip plates are fixedly connected to the side of the inner ring near the end filter chamber. When the four protruding strips and the four strip plates are aligned, the end filter chamber can be divided into four separate filter chambers.

[0013] As a further improvement to this technical solution, the starting component includes a slot formed on the lower surface of the feed pipe, a clamping tube rotatably sleeved inside the slot, and the clamping tube being connected to the bottom plate via a connecting rod; a claw platform is fixedly connected to the top of the top plate, a rotating shaft is fixedly connected to the top of the claw platform, the other end of the rotating shaft extends out of the top of the regeneration cylinder and is coaxially connected to the output shaft of the drive motor, a fixing pipe is fixedly connected to the top of the regeneration cylinder, and the drive motor is fixedly mounted on the top of the fixing pipe.

[0014] As a further improvement to this technical solution, an inclined platform is fixedly connected between the primary filter ring and the inner ring. The inclined platform can assist the waste oil after primary filtration to smoothly enter the interior of the final filter chamber.

[0015] As a further improvement to this technical solution, an observation window is provided on the surface of the fixed tube. Indicator marks are fixedly connected to both the surface of the fixed tube near the observation window and the surface of the rotating shaft. When the two indicator marks are aligned, the four strips and the four protrusions are aligned.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In this waste oil regeneration device with a filtration structure, the waste lubricating oil is kept under high pressure as it flows out of the outlet through dual pumping in the pumping unit. This high-pressure waste lubricating oil impacts the surface of the primary filter ring in a jet form, effectively reducing the adhesion of large metal impurities to the primary filter ring surface and thus reducing the impact on filtration efficiency. Simultaneously, the bottom of the primary filter chamber is designed to be inclined. When the waste lubricating oil is impacted by the high-pressure jet, it will tumble within the chamber. During this tumbling process, the waste lubricating oil collides with the inner wall of the primary filter chamber, further breaking up large metal impurities and effectively improving the primary filtration effect of the waste lubricating oil.

[0018] 2. In this waste oil regeneration device with a filtration structure, after the waste lubricating liquid has passed through the primary filter ring and entered the final filter chamber, if there are many metal impurities, the starting component will be turned on. As the starting component runs, the final filter ring begins to rotate, making the interior of the final filter chamber centrifugal, which facilitates secondary filtration of the waste lubricating oil. At the same time, during the rotation of the final filter ring, the convex strips connected to the surface of the final filter ring will rotate intermittently until they align with the strips on the surface of the inner ring. When the convex strips align with the strips, the gap between them is small, which can effectively crush the impurities passing between the convex strips and the strips, further removing impurities from the waste lubricating oil and improving the filtration effect.

[0019] 3. In this waste oil regeneration device with a filtration structure, after the waste lubricating oil has passed through the pre-filter ring and entered the final filter chamber, if there are many fine colloidal substances, the final filter ring can be rotated by starting the component. When the convex strips on the surface of the final filter ring are aligned with the strips of the inner ring, the final filter ring stops rotating, and the final filter chamber is divided into four separate filter chambers, which allows the waste lubricating oil to undergo zoned sedimentation filtration, greatly improving the targeting and efficiency of filtration. Zoned filtration allows the waste lubricating oil in different areas to undergo independent sedimentation and filtration processes according to its impurity content and properties, avoiding mutual interference of impurities, thereby more effectively removing impurities such as fine colloidal substances. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the regeneration cylinder of the present invention;

[0022] Figure 3 This is a schematic diagram of the waste oil primary filter structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 A schematic diagram of the structure at point A;

[0024] Figure 5 This is a schematic diagram of the waste oil entering the final filter chamber of the present invention;

[0025] Figure 6 This is a schematic diagram of the waste oil separation sedimentation filtration structure of the present invention;

[0026] Figure 7 For the present invention Figure 6 A schematic diagram of the structure at point B;

[0027] Figure 8 This is a schematic diagram of the waste oil centrifugal filtration structure of the present invention;

[0028] Figure 9 This is a schematic diagram of the startup component structure of the present invention.

[0029] The meanings of the labels in the diagram are as follows:

[0030] 1. Main body of the device; 11. Liquid extraction component; 12. First pump; 121. Second pump; 13. Feed pipe; 131. Oil outlet; 132. Inlet face; 14. Regeneration cylinder; 141. Filter chamber; 142. Oil outlet pipe;

[0031] 2. Filter assembly; 21. Pre-filter mechanism; 22. Final filter mechanism;

[0032] 211. Fixed platform; 212. Primary filter ring; 213. Primary filter chamber;

[0033] 221. Start-up assembly; 222. Final filter ring; 223. Top plate; 224. Bottom plate; 225. Final filter compartment; 2251. Separating filter compartment; 226. Inner ring; 227. Strip plate; 228. Raised strip; 229. Outer compartment;

[0034] 2211. Drive motor; 2212. Fixing tube; 2213. Rotating shaft; 2214. Claw table; 2215. Clamping tube; 2216. Slot;

[0035] 3. Inclined platform;

[0036] 4. Top pressure plate;

[0037] 5. Observation window; 51. Indicator. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] 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 invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Example 1, please refer to Figure 1 and Figure 2 As shown, the purpose of this embodiment is to provide a waste oil regeneration device with a filtration structure, including a device body 1, the device body 1 including a regeneration cylinder 14, a filtration chamber 141 is opened inside the regeneration cylinder 14, an oil outlet pipe 142 is fixedly connected to both sides of the regeneration cylinder 14, an inlet pipe 13 is inserted into the bottom of the regeneration cylinder 14, and a liquid extraction component 11 for extracting and filtering waste oil is installed in the middle of the inlet pipe 13; a filter assembly 2 for filtering waste oil is provided on the outer wall of one side of the inlet pipe 13 inside the filtration chamber 141, the filter assembly 2 including a primary filter mechanism 21 and a final filter mechanism 22, the primary filter mechanism 21 is used to perform preliminary filtration of waste oil, and at the same time, combined with the high pressure generated during waste oil transportation, it can assist in crushing large pieces of waste in the waste oil;

[0041] The upper and lower ends of the end filter mechanism 22 are connected to the starting component 221. The feed pipe 13 is in a vertical state inside the filter chamber 141. When the starting component 221 is in a stationary state, it can assist the waste oil in partitioned sedimentation and filtration in conjunction with the end filter mechanism 22.

[0042] Considering the feeding situation of waste lubricating oil, the specific structure of the liquid extraction component 11 is disclosed first. The liquid extraction component 11 includes a first pump 12 and a second pump 121 installed in the middle of the feed pipe 13. The first pump 12 is located at the end of the feed pipe 13 that extends out of the filter chamber 141, and the second pump 121 is located inside the filter chamber 141. The end of the feed pipe 13 located inside the filter chamber 141 is provided with an oil outlet 131, and the top of the inner cavity of the feed pipe 13 is provided with a guide surface 132.

[0043] See Figure 1 and combined Figure 3As shown, a first pump 12 and a second pump 121 are installed in the middle of the feed pipe 13. The first pump 12 and the second pump 121 are installed in series, which can increase the pumping pressure of the waste lubricating oil. When the waste lubricating oil is pumped to the top of the feed pipe 13, with the guidance of the guide surface 132, the waste lubricating oil can be sprayed out from the oil outlet 131 at a specific angle (the hole of the oil outlet 131 is a flat structure, so there will be no backflow). This not only provides a stable angle support for the feed of waste lubricating oil, but also effectively ensures that the waste lubricating oil can enter the subsequent processing stage in a suitable direction and force. The regeneration cylinder 14 is a detachable structure.

[0044] The reason why the dual pressurization pumping of the first pump 12 and the second pump 121 can increase the pumping pressure of waste lubricating oil is that the first pump 12 and the second pump 121 are installed in series. The waste lubricating oil can pass through the two pumps in sequence. Each pump will apply a certain pressure boost to the fluid. The waste lubricating oil with a certain pressure output from the first pump then enters the second pump. The second pump further increases the pressure on this basis. After two pressure boosts, the total pressure on the waste lubricating oil is significantly increased, thereby effectively increasing the pumping pressure of the waste lubricating oil and ensuring that the waste lubricating oil can be more powerfully transported to the designated location for subsequent processing.

[0045] The internal components of the first pump 12 and the second pump 121, such as the impeller and pump casing, are made of wear-resistant materials, which effectively reduces pump damage and leakage caused by impurities. In addition, the flow channels of the first pump 12 and the second pump 121 are relatively wide, so impurities in the waste lubricating oil can pass through smoothly without clogging the pump body.

[0046] To further improve the filtration effect of waste lubricating oil, it is necessary to perform dual filtration. Therefore, in conjunction with... Figure 3 The primary filtration mechanism 21 is disclosed. The primary filtration mechanism 21 includes a fixed platform 211 fixedly connected to the outer wall of the feed pipe 13. A primary filter ring 212 is fixedly connected to the top of the fixed platform 211. A top pressure plate 4 is snapped onto the top of the feed pipe 13. A primary filter chamber 213 is formed between the top pressure plate 4, the primary filter ring 212 and the fixed platform 211. The primary filter chamber 213 is connected to the oil outlet 131. The bottom of the inner cavity of the primary filter chamber 213 is inclined.

[0047] As described above, waste lubricating oil, through the oil outlet 131 and the guide surface 132, can be sprayed at a specific angle onto the surface of the primary filter ring 212. The impact of the waste lubricating oil can effectively reduce the amount of impurities adhering to the inner wall of the primary filter ring 212, thereby reducing the clogging of the filter pores in the primary filter ring 212. When the waste lubricating oil is impacted by the high-pressure jet, combined with the flow direction of the inner wall of the primary filter chamber 213, it will tumble inside the primary filter chamber 213. During the tumbling process, the waste lubricating oil frequently collides with the inner wall of the primary filter chamber 213, effectively assisting in the crushing of large metal impurities in the waste lubricating oil, further improving the primary filtration effect of the waste lubricating oil, laying a solid foundation for the subsequent fine filtration stage, making the entire filtration process more efficient and reliable, and greatly improving the filtration quality and resource recycling rate of waste lubricating oil.

[0048] It should be noted that the top pressure plate 4 is snap-fitted onto the top of the feed pipe 13. After installation, the top pressure plate 4 and the primary filter ring 212 are sealed, so that the waste lubricating oil will not flow out from the gap between the top pressure plate 4 and the primary filter ring 212 when filtering in the primary filter chamber 213. The top pressure plate 4 and the feed pipe 13 can be connected by a snap-fit ​​method, that is, the feed pipe 13 and the top pressure plate 4 are respectively installed with mutually cooperating snap-fit ​​components, and the fixation is achieved by snap-fit. This method is more convenient for installation and disassembly, and can more quickly clean the impurities in the primary filter chamber 213.

[0049] After preliminary filtration, the waste lubricating oil needs to be filtered again through the final filter mechanism 22. The specific structure of the final filter mechanism 22 is disclosed below. The final filter mechanism 22 includes an inner ring 226 fixedly connected to the bottom of the fixed platform 211. The inner diameter of the inner ring 226 is larger than the inner diameter of the primary filter ring 212. The outer side of the inner ring 226 is fitted with a final filter ring 222. A top plate 223 is snapped onto the top of the final filter ring 222. A bottom plate 224 is fixedly connected to the bottom of the final filter ring 222. A rotating groove is opened on the inner wall of the filter chamber 141, and the rotating groove is located at the lower end of the oil outlet pipe 142. The bottom plate 224 rotates inside the rotating groove, and the bottom of the inner ring 226 is attached to the top of the bottom plate 224.

[0050] A final filter chamber 225 is formed between the final filter ring 222 and the inner ring 226, and an outer chamber 229 is formed between the final filter ring 222 and the inner wall of the regeneration cylinder 14. Both oil outlet pipes 142 are connected to the outer chamber 229.

[0051] The lower end of the end filter ring 222 near the end filter chamber 225 is equipped with four protruding strips 228. The inner ring 226 near the end filter chamber 225 is fixedly connected with four strips 227. When the four protruding strips 228 and the four strips 227 are aligned, the end filter chamber 225 can be divided into four separate filter chambers 2251.

[0052] pass Figure 5It can be seen that the inner ring 226 is fixedly connected to the bottom of the fixed platform 211, and the inner wall of the regeneration cylinder 14 is rotatably provided with a bottom plate 224, and the bottom plate 224 is in a close fit with the bottom of the inner ring 226. In this way, a final filter chamber 225 (the final filter ring 222 is a stainless steel pleated filter mesh) is formed between the final filter ring 222 located at the top of the bottom plate 224 and the inner ring 226. Figure 6 As can be seen, four protruding strips 228 are extended from the end of the final filter ring 222 near the inner ring 226. Four strips 227 are fixedly connected to the surface of the inner ring 226 near the final filter chamber 225. When the four strips 227 and the four protruding strips 228 are aligned, the final filter chamber 225 is divided into four separate filter chambers 2251. This allows the waste lubricating oil that has undergone primary filtration to undergo partitioned sedimentation filtration. Especially for waste lubricating oil with a lot of colloids, partitioned sedimentation filtration can reduce the mutual interference of colloids and other impurities, make full use of gravity, and allow colloids and other impurities to gradually settle in the separate filter chambers 2251, further improving the filtration effect and reducing the overall filtration pressure of the final filter chamber 225.

[0053] The four protrusions 228 and the end filter ring 222 are made of the same material, and there is no extra gap between the four protrusions 228 and the end filter ring 222. The four protrusions 228 are set at the same spacing on the surface of the end filter ring 222, and the four strips 227 are also set at the same spacing on the surface of the inner ring 226. Therefore, the four protrusions 228 can be aligned with the four strips 227. When the four protrusions 228 and the four strips 227 are aligned, there is a small gap between adjacent protrusions 228 and strips 227.

[0054] It should be noted that the top plate 223 and the end filter ring 222 can be connected by a snap-fit ​​method, so that the top plate 223 can be separated from the end filter ring 222. This allows the top plate 223 to be separated from the end filter ring 222 when the device is not in use, so that the end filter chamber 225 can be cleaned. The snap-fit ​​connection between the top plate 223 and the end filter ring 222 uses existing technology and will not be described in detail here.

[0055] The aforementioned second pump 121 is located on the side of the feed pipe 13 near the oil outlet 131. After the inner ring 226 is installed, the second pump 121 is located inside the inner ring 226. Since the interior of the inner ring 226 does not participate in the filtration process of waste lubricating oil, the wiring of the second pump 121 can be set inside the inner ring 226. This will not affect the filtration of waste lubricating oil, and will also provide a relatively safe layout space for the wiring.

[0056] Considering that the primary filter chamber 213 is higher than the final filter chamber 225, in order to further improve the smoothness of the waste lubricating oil entering the final filter chamber 225, an inclined platform 3 is fixedly connected between the primary filter ring 212 and the inner ring 226. The inclined platform 3 can assist the waste oil after primary filtration to smoothly enter the interior of the final filter chamber 225.

[0057] The improvement lies in: combination Figure 3 As shown, an inclined platform 3 is fixedly connected between the primary filter ring 212 and the inner ring 226. Due to its inclined design, when the waste lubricating oil after primary filtration flows from the primary filter chamber 213 to the final filter chamber 225, the inclined platform 3 provides a downward guiding slope for the waste lubricating oil. The waste lubricating oil can flow more smoothly into the interior of the final filter chamber 225 along this slope, reducing the flow resistance that may be caused by the height difference, improving the fluidity of the waste lubricating oil in the filtration process, ensuring the continuity of the entire filtration process, and thus improving the filtration efficiency.

[0058] In summary, the working principle of this embodiment is as follows: First, through the combined operation of the first pump 12 and the second pump 121, waste lubricating oil can be pumped in. When the waste lubricating oil is pumped to the top of the feed pipe 13, with the guidance of the guide surface 132, the waste lubricating oil can be sprayed out from the oil outlet 131 at a specific angle. This not only provides stable angular support for the feed of waste lubricating oil, but also effectively ensures that the waste lubricating oil can enter the subsequent processing stage with appropriate direction and force.

[0059] Subsequently, the waste lubricating oil enters the interior of the primary filter chamber 213. The impact of the waste lubricating oil effectively reduces the amount of impurities adhering to the inner wall of the primary filter ring 212, thereby reducing the clogging of the filter holes in the primary filter ring 212. When the waste lubricating oil is impacted by the high-pressure jet, it will tumble inside the primary filter chamber 213 in combination with the flow direction of the inner wall of the primary filter chamber 213. During the tumbling process, the waste lubricating oil collides frequently with the inner wall of the primary filter chamber 213, effectively assisting in the crushing of large metal impurities in the waste lubricating oil, further improving the primary filtration effect of the waste lubricating oil.

[0060] The inner ring 226 is fixedly connected to the bottom of the fixed platform 211. The inner wall of the regeneration cylinder 14 is rotatably provided with a bottom plate 224, and the bottom plate 224 is in contact with the bottom of the inner ring 226. Thus, a final filter chamber 225 is formed between the final filter ring 222 located at the top of the bottom plate 224 and the inner ring 226. Four protruding strips 228 are extended from the end of the final filter ring 222 near the inner ring 226. Four strips 227 are fixedly connected to the surface of the inner ring 226 near the final filter chamber 225. When the four strips 228 are fixedly connected to the surface of the inner ring 226 near the final filter chamber 225, the final filter chamber 226 is fixedly connected to the bottom of the inner ring 226. When 27 and the four protrusions 228 are aligned, the final filter chamber 225 is divided into four separate filter chambers 2251, which allows the waste lubricating oil that has undergone primary filtration to undergo zoned sedimentation filtration. This filtration method is especially suitable for waste lubricating oil with a lot of colloidal impurities. Zoned sedimentation filtration can reduce the mutual interference of colloidal impurities and make full use of gravity to allow colloidal impurities to gradually settle in the separate filter chambers 2251, further improving the filtration effect and reducing the overall filtration pressure of the final filter chamber 225.

[0061] Example 2 differs from Example 1 above. During the operation of industrial equipment, the continuous friction of various mechanical parts causes the metal parts in the equipment to gradually generate tiny metal particles or metal flakes. These metal impurities circulate with the lubricating oil inside the equipment and are then mixed into the industrial waste lubricating oil. Therefore, in order to further improve the filtration of waste lubricating oil with a high content of metal impurities, the starting component 221 can be used to drive the end filter ring 222 to rotate. The starting component 221 includes a slot 2216 opened on the lower surface of the feed pipe 13. The slot 2216 is rotatably sleeved with a clamping tube 2215. The clamping tube 2215 is connected to the base plate 224 through a connecting rod.

[0062] A claw platform 2214 is fixedly connected to the top of the top plate 223. A rotating shaft 2213 is fixedly connected to the top of the claw platform 2214. The other end of the rotating shaft 2213 extends out of the top of the regeneration cylinder 14 and is coaxially connected to the output shaft of the drive motor 2211. A fixed pipe 2212 is fixedly connected to the top of the regeneration cylinder 14. The drive motor 2211 is fixedly installed on the top of the fixed pipe 2212.

[0063] See Figure 9 As shown, the lower end surface of the feed pipe 13 located in the filter chamber 141 has a slot 2216, and a clamping pipe 2215 is rotatably sleeved on the surface of the slot 2216. The clamping pipe 2215 is connected to the base plate 224. The base plate 224 is rotatably set in the rotating groove on the inner wall of the filter chamber 141. The base plate 224 will not wobble left or right or up or down. Therefore, the feed pipe 13 can be centered and fixed by means of the base plate 224 and the clamping pipe 2215.

[0064] Combination Figure 6As shown, the top of the top plate 223 is fixedly connected to the claw platform 2214, which in turn is fixedly connected to the rotating shaft 2213. When the rotating shaft 2213 rotates under the drive of the drive motor 2211, the end filter ring 222 can drive the bottom plate 224 to rotate together inside the filter chamber 141, so that the end filter chamber 225 is in a centrifugal state. Centrifugal rotation can use centrifugal force to quickly separate substances of different densities, so that impurities and lubricating oil can be separated more effectively, improving filtration efficiency. Especially for waste lubricating oil with more metal impurities, under the action of centrifugal force, the heavier metal impurities will be quickly thrown to the edge of the end filter chamber 225, greatly reducing the residue of metal impurities in waste lubricating oil. At the same time, the centrifugal rotation process can gather and compress metal impurities to a certain extent, which is convenient for subsequent cleaning and treatment of impurities.

[0065] When the final filter ring 222 rotates, it will cause the four protrusions 228 to rotate together, such as Figure 8 As shown, during the rotation of the final filter ring 222, the protrusion 228 will align with the strip 227. When the final filter ring 222 rotates and the protrusion 228 approaches and aligns with the strip 227, due to the narrow gap, as the final filter ring 222 continues to rotate, impurities such as metal pieces will be subjected to extrusion pressure from both the protrusion 228 and the strip 227 when passing through the gap between the protrusion 228 and the strip 227. This extrusion pressure will compress the impurities such as metal pieces in the narrow space. When the extrusion pressure exceeds the tolerance limit of the impurities such as metal pieces, they will break. In this way, larger impurities such as metal pieces can be effectively broken into smaller particles, which is more conducive to subsequent filtration and improves the filtration effect of waste lubricating oil.

[0066] It is important to note that: Figure 8 The solid arrow in the image indicates the direction of rotation of the final filter ring 222.

[0067] Since the final filter ring 222 can filter both when stationary and when rotating, and when stationary, the convex strip 228 needs to be aligned with the strip 227, an observation window 5 is provided on the surface of the fixed tube 2212 to facilitate the indication of the position of the convex strip 228 and the strip 227. An indicator 51 is fixedly connected to the surface of the fixed tube 2212 near the observation window 5 and the surface of the rotating shaft 2213. When the two indicator 51 are aligned, the four strips 227 and the four convex strips 228 are aligned.

[0068] The improvements are as follows: Figure 3 and Figure 9As shown, an observation window 5 is provided on the surface of the fixed tube 2212. Indicator marks 51 are fixedly connected to both the surface of the fixed tube 2212 near the observation window 5 and the surface of the rotating shaft 2213. When the two indicator marks 51 are aligned, it means that the four strips 227 and the four protrusions 228 are aligned. On the one hand, the observation window 5 and indicator marks 51 allow the operator to intuitively determine whether the protrusions 228 and the strips 227 are aligned, thereby accurately controlling the filtration state of the final filter ring 222 when stationary. This ensures that the position of the final filter ring 222 can be quickly and accurately adjusted when a specific filtration mode is required, improving the precision and efficiency of the filtration operation. On the other hand, this visual indication method reduces operational uncertainty and blindness, lowering the risk of poor filtration due to inaccurate positioning, and providing a reliable guarantee for the efficient filtration of waste lubricating oil.

[0069] In summary, the working principle of this embodiment is as follows: For the filtration of waste lubricating oil with a large amount of metal impurities, when the rotating shaft 2213 rotates under the drive of the drive motor 2211, the final filter ring 222 can drive the bottom plate 224 to rotate together inside the filter chamber 141, so that the final filter chamber 225 is in a centrifugal state. Centrifugal rotation can use centrifugal force to quickly separate substances of different densities, so that impurities are separated from lubricating oil more effectively and the filtration efficiency is improved. Especially for waste lubricating oil with a large amount of metal impurities, under the action of centrifugal force, the heavier metal impurities will be quickly thrown to the edge of the final filter chamber 225, which greatly reduces the residue of metal impurities in the waste lubricating oil. At the same time, the centrifugal rotation process can gather and compress metal impurities to a certain extent, which is convenient for subsequent cleaning and treatment of impurities.

[0070] When the final filter ring 222 rotates, it drives the four protrusions 228 to rotate together. When the final filter ring 222 rotates and the protrusions 228 approach and align with the strip 227, due to the narrow gap, as the final filter ring 222 continues to rotate, metal flakes and other impurities will be subjected to extrusion pressure from both the protrusions 228 and the strip 227 when passing through the gap between the protrusions 228 and the strip 227. This extrusion pressure will compress the metal flakes and other impurities in the narrow space. When the extrusion pressure exceeds the tolerance limit of the metal flakes and other impurities, they will break. In this way, larger metal flakes and other impurities can be effectively broken into smaller particles, which is more conducive to subsequent filtration and improves the filtration effect of waste lubricating oil.

[0071] An observation window 5 is provided on the surface of the fixed tube 2212. At the same time, an indicator 51 is fixedly connected to the surface of the fixed tube 2212 near the observation window 5 and the surface of the rotating shaft 2213. When the two indicator 51 are aligned, it means that the four strips 227 and the four protrusions 228 are aligned. The setting of the observation window 5 and the indicator 51 allows the operator to intuitively determine whether the protrusions 228 and the strips 227 are aligned, thereby accurately controlling the filtration state of the end filter ring 222 when it is stationary. This ensures that when a specific filtration mode is required, the position of the end filter ring 222 can be quickly and accurately adjusted, improving the accuracy and efficiency of the filtration operation.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste oil regeneration device with a filtration structure, comprising a device body (1), wherein the device body (1) includes a regeneration cylinder (14), and a filtration chamber (141) is provided inside the regeneration cylinder (14), characterized in that: Both sides of the regeneration cylinder (14) are fixedly connected with oil outlet pipes (142), and the bottom of the regeneration cylinder (14) is connected with a feed pipe (13). A liquid extraction component (11) for extracting and filtering waste oil is installed in the middle of the feed pipe (13). The feed pipe (13) is located on one side of the outer wall of the filter chamber (141) and is equipped with a filter assembly (2) for filtering waste oil. The filter assembly (2) includes a primary filter mechanism (21) and a final filter mechanism (22). The primary filter mechanism (21) is used to perform preliminary filtration of waste oil. At the same time, combined with the high pressure generated during waste oil transportation, it can help crush large pieces of waste in the waste oil. The upper and lower ends of the end filter mechanism (22) are connected to the starting component (221). The feed pipe (13) is in a vertical state inside the filter chamber (141). When the starting component (221) is rotating, it can drive the end filter mechanism (22) to perform centrifugal secondary filtration on the waste oil after primary filtration. When the starting component (221) is stationary, it can assist the waste oil in partitioned sedimentation filtration in conjunction with the end filter mechanism (22). The liquid extraction component (11) includes a first pump (12) and a second pump (121) installed in the middle of the feed pipe (13). The first pump (12) is located at one end of the feed pipe (13) that extends out of the filter chamber (141), and the second pump (121) is located inside the filter chamber (141). The feed pipe (13) has an oil outlet (131) at its end inside the filter chamber (141), and a guide surface (132) is provided at the top of the inner cavity of the feed pipe (13). The primary filtration mechanism (21) includes a fixed platform (211) fixedly connected to the outer wall of the feed pipe (13). A primary filter ring (212) is fixedly connected to the top of the fixed platform (211). A top pressure plate (4) is snapped onto the top of the feed pipe (13). A primary filter chamber (213) is formed between the top pressure plate (4), the primary filter ring (212) and the fixed platform (211). The primary filter chamber (213) is connected to the oil outlet (131). The bottom of the inner cavity of the primary filter chamber (213) is inclined. The final filter mechanism (22) includes an inner ring (226) fixedly connected to the bottom of the fixed platform (211). The inner diameter of the inner ring (226) is larger than the inner diameter of the primary filter ring (212). The outer side of the inner ring (226) is fitted with a final filter ring (222). The top of the final filter ring (222) is snapped with a top plate (223). The bottom of the final filter ring (222) is fixedly connected with a bottom plate (224). The inner wall of the filter chamber (141) is provided with a rotating groove, and the rotating groove is located at the lower end of the oil outlet pipe (142). The bottom plate (224) rotates inside the rotating groove. The bottom of the inner ring (226) is attached to the top of the bottom plate (224). The final filter ring (222) and the inner ring (226) form a final filter chamber (225), and the final filter ring (222) and the inner wall of the regeneration cylinder (14) form an outer chamber (229). Both oil outlet pipes (142) are connected to the outer chamber (229). The lower end of the end filter ring (222) near the end filter chamber (225) is equipped with four protruding strips (228), and the inner ring (226) near the end filter chamber (225) is fixedly connected with four strips (227). When the four protruding strips (228) and the four strips (227) are aligned, the end filter chamber (225) can be divided into four separate filter chambers (2251). The starting component (221) is located at the top of the top plate (223). The starting component (221) includes a slot (2216) formed on the lower surface of the feed pipe (13), and a clamping tube (2215) is rotatably sleeved inside the slot (2216). The clamping tube (2215) is connected to the base plate (224) via a connecting rod. The top plate (223) is fixedly connected to a claw platform (2214), and the top of the claw platform (2214) is fixedly connected to a rotating shaft (2213). The other end of the rotating shaft (2213) extends out of the top of the regeneration cylinder (14) and is coaxially connected to the output shaft of the drive motor (2211). The top of the regeneration cylinder (14) is fixedly connected to a fixing pipe (2212), and the drive motor (2211) is fixedly installed on the top of the fixing pipe (2212).

2. The waste oil regeneration device with a filtration structure according to claim 1, characterized in that: An inclined platform (3) is fixedly connected between the primary filter ring (212) and the inner ring (226). The inclined platform (3) can assist the waste oil after primary filtration to smoothly enter the interior of the final filter chamber (225).

3. The waste oil regeneration device with a filtration structure according to claim 1, characterized in that: The surface of the fixed tube (2212) is provided with an observation window (5). The surface of the fixed tube (2212) near the observation window (5) and the surface of the rotating shaft (2213) are both fixedly connected with indicator marks (51). When the two indicator marks (51) are aligned, the four strips (227) and the four protrusions (228) are aligned.

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