Steel belt oil-water separator

Abstract

The application discloses a steel-belt type oil-water separator, which comprises a rack, a steel belt, a first roller and a second roller, avoids shaking of the steel belt during use, and further agitates a solution. The first roller is fixed on the rack, the second roller is installed on the rack through a tensioning mechanism, the second roller is movable relative to the rack under force, when the steel belt is stuck, force is transmitted to the second roller, the second roller moves under force, and the steel belt has space to continue transmission. When the steel belt is relatively loose, that is, force applied to the second roller is small, the second roller moves under the action of the tensioning mechanism, and the steel belt is tensioned. The steel belt is sleeved outside the first roller and the second roller, the steel belt is in a tensioned state, part of the steel belt extends into a liquid to be separated, and the first roller and the second roller are provided with grooves on surfaces. The contact surface of the first roller, the second roller and the steel belt is reduced, and lubricating liquid adhered to the surface of the steel belt is prevented from being extruded and falling off by the first roller and the second roller.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water-based metal processing liquid oil separation treatment equipment, in particular to a steel belt type oil-water separation machine. BACKGROUND

[0002] The oil-water separation machine is applied to daily life environment, such as Chinese patent application "Oil-water separation machine", application (patent) number: CN200520038198.9, which discloses a machine case and a water tank, a motor and a magnetic runner are fixedly arranged in the machine case, a steel belt is movably sleeved on the runner, an oil scraper is movably arranged on the steel belt, an oil collecting tank and an oil outlet pipe are arranged below the oil scraper, a water inlet and a water outlet are arranged on the water tank, and an oil baffle is arranged on one side close to the water outlet. By using the adsorption of oil, the oil is taken out by the running of the steel belt, and then scraped down by the oil scraper and collected for treatment. The technical scheme of the utility model has the advantages of simple structure, low cost, small size, light weight, low power consumption, and is suitable for any place containing oil water, such as restaurants, hotels, canteens and other places containing oil water, and can be installed in this equipment, and if widely used, it will greatly reduce pollution, which will benefit the earth and mankind.

[0003] In addition to daily life, more oil-water separation machines are needed in the production and processing field, such as machine tools, processing equipment, etc., and the above-mentioned oil-water separation machine is not suitable. The present application relates to the separation and treatment of water-based metal processing liquid floating oil, that is, the separation of lubricating liquid and cutting fluid. In actual use, the lubricating liquid is oily and the cutting fluid is aqueous, and the lubricating liquid will float above the cutting fluid. The lubricating liquid needs to be separated from the mixed solution of the two and recycled, so that the separated lubricating liquid has high purity and high separation efficiency. Obviously, canvas belts and rubber belts cannot be used in the present application. A conveying belt made of smooth metal material steel belt is needed. The steel belt itself is almost inelastic, so it is obviously not feasible to use two runners to fix the steel belt as disclosed in the above patent application. The steel belt is easy to be stuck during the whole movement process due to inelastic deformation, which may cause the steel belt to break or the driving motor to be stuck and even scrapped. Therefore, a single magnetic runner movably sleeved with a steel belt is used.

[0004] On November 19, 2020, our company submitted a patent application to the State Intellectual Property Office for a "Two-Stage Metalworking Fluid Oil-Water Separator," application (patent) number: CN202022689288.1. The invention includes a sedimentation separation accumulator tank, a power cord, a timer, a switch, a housing, a protective cover, an insulating shaft, an oil guide groove, an oil scraper, a permanent magnet low-speed motor, a magnetic guide ring, a magnetic ring, and a limiting gasket. The housing is shaped like a "7," and is divided into a first mounting cavity and a second mounting cavity by a central partition. A protective cover is fixed to the outside of the second mounting cavity with screws. The sedimentation separation accumulator tank is installed on the housing and located directly below the first mounting cavity. This invention utilizes a superimposed combination design based on specific gravity to efficiently and rationally leverage the specific gravity relationship between oil and wastewater. It lifts and separates impure oil and wastewater using a steel belt, achieving a two-stage separation and a relatively better separation effect. The compact, modular design saves space and reduces the use and waste of other materials.

[0005] When using the aforementioned oil-water separator, the lack of a stop mechanism at the bottom of the steel belt causes it to sway within the liquid collection tank, resulting in partial re-mixing of the already separated solution. This leads to unsatisfactory lubricant separation. Furthermore, existing oil-water separators are fixed to the machine tool and cannot be disassembled. This necessitates equipping each machine tool with an oil-water separator, resulting in low utilization of these separators. Summary of the Invention

[0006] One objective of this application is to provide a steel belt oil-water separator, which uses two rollers to install the steel belt and adds springs for cushioning to prevent belt breakage.

[0007] Another objective of this application is to provide a steel belt oil-water separator, wherein the rollers are provided with grooves to facilitate the removal of lubricating fluid without squeezing it at the drive wheel or driven wheel, which would reduce efficiency.

[0008] Another objective of this application is to provide a steel belt oil-water separator with a base, which can be placed directly in the housing, making it easy to use multiple devices, providing good flexibility and reducing operating costs.

[0009] Another objective of this application is to provide a steel belt oil-water separator with an inclined scraper to reduce the contact area between the scraper and the steel belt surface on the same horizontal plane, thereby preventing the steel belt from wrinkling, which would lead to damage to the steel belt and ensuring the service life of the steel belt.

[0010] Another objective of this application is to provide a steel belt oil-water separator with an added secondary separation tank for secondary separation of the separated liquid.

[0011] The technical solution adopted in this application is: a steel belt oil-water separator, including a frame, a steel belt, a first roller and a second roller. The first roller is fixed on the frame, and the second roller is installed on the frame through a tensioning mechanism. The second roller is movable relative to the frame under force. The steel belt is sleeved on the first roller and the second roller. The steel belt is in a tensioned state, and part of the steel belt extends into the liquid to be separated. The surfaces of the first roller and the second roller are provided with grooves.

[0012] Compared with existing technologies, the advantages of this application are as follows: First, to prevent the steel belt from shaking during use and thus muddying the solution, this application adds a second roller to tension the steel belt, thereby limiting its position. Furthermore, this application can use ordinary rollers and motors, eliminating the need for components such as magnetic rings and permanent magnet low-speed motors, reducing equipment costs. Second, because the lubricant needs to be separated and reused, the conveyor belt used is limited to steel belts. Due to the special properties of steel belts, they have virtually no elastic deformation during use. This application incorporates a tensioning mechanism that allows the second roller to move relative to the frame under force. When the steel belt is jammed, the force is transmitted to the second roller, causing it to move and allowing the steel belt to continue its transmission. When the steel belt is relatively slack, i.e., the force applied to the second roller is smaller, the second roller moves under the action of the tensioning mechanism, thus tensioning the steel belt.

[0013] Finally, this application separates the lubricant from the liquid to be separated by allowing the lubricant to adhere to the steel belt. To improve separation efficiency and maximize the amount of lubricant adhering to the steel belt surface, this application provides grooves on the surfaces of the first and second rollers to reduce the contact area between the first and second rollers and the steel belt. During the conveying process of the steel belt, efforts are made to prevent the lubricant adhering to the steel belt surface from being squeezed off by the first and second rollers.

[0014] In some embodiments of this application, the tensioning mechanism includes an elastic element and a bracket. The first end of the bracket is connected to the frame via the elastic element, and the second end of the bracket is connected to a second roller. The second roller is rotatable relative to the bracket.

[0015] Specifically, the elastic element is a spring, and its extension and retraction direction is along the connecting line between the first and second rollers. That is, the extension and retraction of the elastic element changes the distance between the first and second rollers, thereby changing the tension of the steel belt.

[0016] In some embodiments of this application, the bracket includes a first U-shaped member, a second U-shaped member, and a connecting rod. The two legs of the first U-shaped member are respectively connected to elastic members, which are connected to the frame. The two legs of the second U-shaped member are connected to the shaft of the second roller. The connecting rod connects the first U-shaped member and the second U-shaped member.

[0017] Specifically, the connecting rod connects the first U-shaped component and the second U-shaped component. The connection point between the first U-shaped component and the connecting rod is located at the center of the bottom surface of the first U-shaped component, and the connection point between the second U-shaped component and the connecting rod is located at the center of the bottom surface of the second U-shaped component.

[0018] Furthermore, the frame is provided with a limiting groove, and the first U-shaped component is connected to the limiting groove by bolts, allowing the first U-shaped component to move up and down within the range of the limiting groove. That is, by providing the limiting groove, this application further restricts the movement stroke of the support, thus ensuring the stability of the support during operation.

[0019] In this application, the second roller is adjusted by the structural design of the bracket to prevent the second roller from deviating significantly.

[0020] In some embodiments of this application, the surface of the second roller is uniformly provided with a plurality of second grooves, and adjacent second grooves are equally spaced. In this application, by providing a plurality of second grooves, the contact area between the second roller and the steel strip is minimized, thus preventing the lubricant adhering to the surface of the steel strip from being squeezed off by the second roller.

[0021] In some embodiments of this application, the second roller is provided with a plurality of flow channels, which are arranged parallel to the axial direction of the second roller, pass through both sides of the second roller, and communicate with the second groove.

[0022] The lubricant can enter the second groove through the flow channel. As the second roller rotates, the lubricant in the flow channel can fall naturally into the second groove due to gravity and make full contact with the steel belt.

[0023] Preferably, the second roller is provided with three flow channels, which are evenly distributed in three directions of the second roller's rotation axis.

[0024] In some embodiments of this application, retaining rings are provided on both sides of the outer circumferential surface of the second roller, and the steel strip is confined between the two retaining rings. The retaining rings limit the steel strip and prevent it from falling off the second roller.

[0025] In some embodiments of this application, the surface of the first roller is uniformly provided with a plurality of first grooves, and two adjacent first grooves are equally spaced.

[0026] In this application, by setting a number of first grooves, the contact surface between the first roller and the steel belt is minimized, so as to avoid the lubricant adhering to the surface of the steel belt being squeezed off by the first roller.

[0027] In some embodiments of this application, scrapers and guide grooves are provided on both sides of the downward-moving steel strip. The upper edge of the scraper contacts the steel strip, and the lower edge of the scraper guides the guide groove, which does not contact the steel strip.

[0028] The two scraper blades are positioned opposite each other. This ensures that the force is applied to both sides of the steel belt, resulting in stable downward movement of the steel belt.

[0029] Furthermore, the projection of the centerline of the two scraper blades in the vertical direction is onto the first roller. The centerline of the two scraper blades is the line between them, and also the line where the steel strip contacts the scraper blades. The aforementioned vertical direction is perpendicular to the horizontal plane.

[0030] Preferably, the steel strip at the contact point of the scraper is offset horizontally by 0.5mm to 4mm towards the drive wheel. This horizontal positioning of the scraper not only tensions the steel strip but also ensures a tighter wrapping of the steel strip around the drive wheel, reducing the likelihood of slippage. Furthermore, the closer contact between the steel strip and the scraper allows for more effective removal of oil from the steel strip.

[0031] The lubricant on the surface of the descending steel strip will flow along the guide groove of the scraper and enter the guide groove.

[0032] Furthermore, the scraper blade is made of plastic. The plastic scraper blade, in contact with the steel strip, reduces wear and effectively extends its service life.

[0033] In some embodiments of this application, the upper edge of the scraper blade forms an angle with the horizontal plane. That is, the contact surface between the scraper blade and the steel strip is inclined, reducing the contact area between the scraper blade and the steel strip surface on the same horizontal plane, thus preventing wrinkling of the steel strip. Wrinkling can lead to damage to the steel strip; this design ensures the service life of the steel strip.

[0034] Furthermore, the angle between the upper edge of the scraper and the horizontal plane is 20° to 70°.

[0035] If the angle between the upper edge of the scraper and the horizontal plane is 20°, it is easy to cause wrinkling of the steel strip. If the angle between the upper edge of the scraper and the horizontal plane is greater than 70°, the downward resistance of the steel strip will be too great, causing the steel strip to jam.

[0036] In some embodiments of this application, a secondary separation tank is also included, with the guide channel connected to the secondary separation tank. That is, the lubricating fluid falls into the secondary separation tank through the guide channel. In this application, after the scraper removes the lubricating fluid from the steel belt, the movement of the lubricating fluid is not driven by additional power, but rather relies on its own gravity to fall and change position.

[0037] In some embodiments of this application, the bottom surface of the secondary separation tank has an outlet hole, and an outlet pipe is installed at the outlet hole. The outlet pipe is covered by a separation sleeve, and the bottom of the separation sleeve has a groove. As the lubricating fluid continuously flows into the secondary separation tank, it may also contain some aqueous liquid. Utilizing the density and specific gravity relationship between the aqueous liquid and the lubricating fluid, after standing for a period of time, the aqueous liquid and the lubricating fluid will separate into layers. The aqueous liquid at the bottom of the secondary separation tank will enter the separation sleeve through the groove.

[0038] Specifically, the inlet of the outlet pipe is higher than the opening of the separation sleeve. Aqueous liquid enters the separation sleeve through the bottom opening. When the solution level in the secondary separation tank is higher than the inlet of the outlet pipe, the aqueous liquid in the separation sleeve will rise to the same level as the solution, allowing it to enter the outlet pipe through the inlet and be discharged from the secondary separation tank through the outlet pipe.

[0039] In some embodiments of this application, the outlet tube is threadedly connected to the outlet hole, and rotating the outlet tube can adjust its height relative to the secondary separation tank. That is, the inlet height of the outlet tube is adjustable.

[0040] In some embodiments of this application, a limiting tube is fitted over the outlet tube, and the limiting tube cannot pass through the threaded hole. That is, during the adjustment of the outlet tube thread, the limiting tube plays a role in limiting the movement limit of the outlet tube.

[0041] The limiting tube design prevents the height of the outlet tube from falling below the groove opening during the adjustment of the outlet tube height.

[0042] In some embodiments of this application, a knob is provided above the outlet tube. The operator rotates the outlet tube by operating the knob, making it easy to adjust the height of the outlet tube.

[0043] In some embodiments of this application, the separating sleeve has an opening at the top. The user can operate the knob through this opening.

[0044] In some embodiments of this application, the secondary separation tank is provided with an outlet. The bottom surface of the outlet is lower than the height of the separation sleeve. The bottom surface of the outlet is higher than the height of the outlet pipe. Lubricating fluid located on the upper surface of the secondary separation tank is discharged from the secondary separation tank through the outlet.

[0045] In some embodiments of this application, the outlet is connected to a collection basket. The lubricant after the final secondary separation falls into the collection basket for recycling.

[0046] In some embodiments of this application, a base is provided for supporting the steel strip oil-water separator. The base can be connected to the liquid collection tank of any device. The base eliminates the need for the steel strip oil-water separator to be installed on the target housing; it can be placed directly inside the housing, facilitating compatibility with multiple devices, improving flexibility, and reducing operating costs. Attached Figure Description

[0047] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0048] Figure 1 This is a schematic diagram of the structure of this application;

[0049] Figure 2 This is a top view of this application;

[0050] Figure 3 for Figure 2 Sectional view of section AA;

[0051] Figure 4 for Figure 2 Sectional view of section BB;

[0052] Figure 5 This is an internal structural view of this application;

[0053] Figure 6 This is a schematic diagram of the internal structure of the steel strip;

[0054] Figure 7 This is a schematic diagram of the secondary separation tank.

[0055] The specific reference numerals in the attached drawings are explained as follows: 1. Frame; 2. Steel belt; 3. First roller; 4. Second roller; 5. Elastic element; 6a. First U-shaped element; 6b. Second U-shaped element; 6c. Connecting rod; 7. Limiting groove; 8. First groove; 9. Second groove; 10. Flow channel; 11. Retaining ring; 12. Scraper; 13. Guide groove; 14. Secondary separation groove; 15. Outlet hole; 16. Outlet pipe; 17. Separation sleeve; 18. Groove opening; 19. Knob; 20. Outlet; 21. Collection basket; 22. Base. Detailed Implementation

[0056] The present application will now be described in detail with reference to the accompanying drawings.

[0057] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0058] Steel belt oil-water separator, Example 1 as follows Figures 1 to 7 The assembly includes a frame 1, a steel belt 2, a first roller 3, and a second roller 4 to prevent the steel belt 2 from shaking during use and thus stirring the solution. The first roller 3 is fixed to the frame 1, and the second roller 4 is mounted on the frame 1 via a tensioning mechanism. The second roller 4 is movable relative to the frame 1 under stress. When the steel belt 2 is stuck, the force is transferred to the second roller 4, causing it to move and allowing the steel belt 2 to continue its transmission. When the steel belt 2 is relatively slack, i.e., the force applied to the second roller 4 is smaller, the second roller 4 moves under the action of the tensioning mechanism, thus tensioning the steel belt 2. The steel belt 2 is sleeved over the first roller 3 and the second roller 4, and is in a taut state, with part of the steel belt 2 extending into the liquid to be separated. The surfaces of the first roller 3 and the second roller 4 are provided with grooves to reduce the contact area between the first roller 3 and the second roller 4 and the steel belt 2. During the conveying process of steel belt 2, efforts should be made to prevent the lubricant adhering to the surface of steel belt 2 from being squeezed off by the first roller 3 and the second roller 4.

[0059] In this application, ordinary rollers and motors can be used instead of components such as magnetic ring plates and permanent magnet low-speed motors, which reduces the cost of the equipment.

[0060] Example 2 Figure 1 , Figure 6 As shown, the other contents of Embodiment 2 are the same as those of Embodiment 1, except that the tensioning mechanism includes an elastic element 5 and a bracket. The first end of the bracket is connected to the frame 1 through the elastic element 5, and the second end of the bracket is connected to the second roller 4. The second roller 4 is rotatable relative to the bracket.

[0061] Specifically, the elastic element 5 is a spring, and the direction of extension and retraction of the elastic element 5 is the direction of the connecting line between the first roller 3 and the second roller 4. That is, the extension and retraction of the elastic element 5 changes the distance between the first roller 3 and the second roller 4, thereby changing the tension of the steel belt 2.

[0062] The bracket includes a first U-shaped component 6a, a second U-shaped component 6b, and a connecting rod 6c. The two legs of the first U-shaped component 6a are respectively connected to elastic elements 5, and the elastic elements 5 are connected to the frame 1. The two legs of the second U-shaped component 6b are connected to the rotating shaft of the second roller 4. The connecting rod 6c connects the first U-shaped component 6a and the second U-shaped component 6b.

[0063] Specifically, the connecting rod 6c connects the first U-shaped member 6a and the second U-shaped member 6b. The connection point between the first U-shaped member 6a and the connecting rod is located at the center of the bottom surface of the first U-shaped member 6a, and the connection point between the second U-shaped member 6b and the connecting rod is located at the center of the bottom surface of the second U-shaped member 6b.

[0064] Furthermore, the frame 1 is provided with a limiting groove 7, and the first U-shaped member 6a is connected to the limiting groove 7 by bolts. The first U-shaped member 6a can move up and down within the range of the limiting groove 7. That is, by providing the limiting groove 7, this application further restricts the movement stroke of the support, and also makes the support stable during operation.

[0065] The bracket with the above structure is connected to two elastic elements 5, so that even if the second roller 4 is subjected to a biased force, the biased force is transmitted to the spring through the second U-shaped element 6b, the connecting rod, and the first U-shaped element 6a. The bracket integrates the biased force at the connecting rod and then distributes it to the spring through the first U-shaped element 6a. In this application, the second roller 4 is adjusted through the structural design of the bracket to prevent the second roller 4 from being significantly biased.

[0066] Example 3 Figure 6 As shown, the other contents of Embodiment 3 are the same as those of Embodiment 1 or Embodiment 2, except that: the surface of the second roller 4 is uniformly provided with a plurality of second grooves 9, and two adjacent second grooves 9 are equally spaced. In this application, by providing a plurality of second grooves 9, the contact surface between the second roller 4 and the steel belt 2 is minimized, thus preventing the lubricant adhering to the surface of the steel belt 2 from being squeezed off by the second roller 4.

[0067] The second roller 4 is provided with a plurality of flow channels 10, which are arranged parallel to the axial direction of the second roller 4, and the flow channels 10 penetrate through the two sides of the second roller 4 and are connected to the second groove 9.

[0068] In actual use, the second roller 4 is immersed in lubricating fluid, and lubricating fluid is present in both the flow channel 10 and the second groove 9. In one scenario, the lubricating fluid directly enters the second groove 9, further contacting the inner surface of the steel strip 2, ensuring full contact and adhesion. In another scenario, the second groove 9 is enclosed by the steel strip 2. If the lubricating fluid level is insufficient, the second groove 9 may not be fully submerged, resulting in insufficient lubricating fluid and inadequate contact between the steel strip 2 and the lubricating fluid. In this case, the lubricating fluid can still enter the second groove 9 through the flow channel 10. The openings on both sides of the flow channel 10 are exposed outside the second roller 4. If the flow channel 10 is partially immersed in the lubricating fluid, the lubricating fluid can enter without obstruction. As the second roller 4 rotates, the lubricating fluid in the flow channel 10 falls naturally due to gravity into the second groove 9 and fully contacts the steel strip 2.

[0069] Preferably, the second roller 4 is provided with three flow channels 10, which are evenly distributed in three directions of the rotation axis of the second roller 4.

[0070] The second roller 4 has retaining rings 11 on both sides of its outer circumference, and the steel belt 2 is confined between the two retaining rings 11. The retaining rings 11 limit the steel belt 2 and prevent it from falling off the second roller 4.

[0071] The surface of the first roller 3 is uniformly provided with a plurality of first grooves 8, and two adjacent first grooves 8 are equally spaced.

[0072] In this application, by setting a number of first grooves 8, the contact surface between the first roller 3 and the steel belt 2 is minimized, so as to avoid the lubricant adhering to the surface of the steel belt 2 being squeezed off by the first roller 3.

[0073] Example 4 can be used in combination with any of the examples above. Example 4 is specifically as follows: Figure 4 , Figure 5 As shown: scraper blades 12 and guide grooves 13 are provided on both sides of the downward steel strip 2. The upper edge of the scraper blade 12 is in contact with the steel strip 2, and the lower edge of the scraper blade 12 is guided to the guide groove 13. The guide groove 13 is not in contact with the steel strip 2.

[0074] The two scraper blades 12 are positioned opposite each other. This ensures that the two sides of the steel belt 2 are in opposite positions when subjected to force, and that the steel belt 2 moves downwards stably.

[0075] Furthermore, the projection of the centerline of the two scraper blades 12 in the vertical direction is onto the first roller 3. The centerline of the two scraper blades 12 is the line between them, and also the line where the steel strip 2 contacts the scraper blades 12. The aforementioned vertical direction is perpendicular to the horizontal plane.

[0076] Preferably, the steel belt 2 at the contact point of the scraper 12 is offset horizontally towards the drive wheel by 0.5mm to 4mm. This horizontal positioning of the scraper 12 not only tensions the steel belt 2 but also ensures a tighter wrapping of the steel belt 2 around the drive wheel, reducing the likelihood of slippage. Furthermore, the tighter fit between the steel belt 2 and the scraper 12 allows for more effective removal of oil from the steel belt 2.

[0077] The lubricant on the surface of the descending steel strip 2 will flow along the guide groove 13 of the scraper 12 and enter the guide groove 13.

[0078] Furthermore, the scraper blade 12 is made of plastic. The plastic scraper blade 12 contacts the steel belt 2, which can reduce wear and effectively improve the service life of the scraper blade 12.

[0079] The upper edge of the scraper blade 12 forms an angle with the horizontal plane. That is, the contact surface between the scraper blade 12 and the steel strip 2 is inclined, reducing the contact area between the scraper blade 12 and the surface of the steel strip 2 on the same horizontal plane, thus preventing wrinkling of the steel strip 2. Wrinkling can lead to damage to the steel strip 2; this design ensures the service life of the steel strip 2.

[0080] Furthermore, the angle between the upper edge of the scraper 12 and the horizontal plane is 20° to 70°.

[0081] If the angle between the upper edge of the scraper blade 12 and the horizontal plane is 20°, it will easily cause the steel strip 2 to wrinkle. If the angle between the upper edge of the scraper blade 12 and the horizontal plane is greater than 70°, the downward resistance of the steel strip 2 will be too great, causing the steel strip 2 to jam.

[0082] Example 5 can be used in combination with any of the above examples. Example 5 is specifically as follows: Figure 3 , Figure 7 As shown: This application also includes a secondary separation tank 14, and the guide groove 13 is connected to the secondary separation tank 14. That is, the lubricating fluid falls into the secondary separation tank 14 through the guide groove 13. In this application, after the scraper 12 scrapes the lubricating fluid off the steel belt 2, the movement of the lubricating fluid is not driven by additional power, but relies on its own gravity to fall and change position.

[0083] The secondary separation tank 14 has a discharge hole 15 on its bottom surface, and a discharge pipe 16 is installed at the discharge hole 15. A separation sleeve 17 covers the discharge pipe 16, and a groove 18 is formed at the bottom of the separation sleeve 17. As the lubricating fluid continuously flows into the secondary separation tank 14, it may also contain some aqueous liquid. Utilizing the density and specific gravity relationship between the aqueous liquid and the lubricating fluid, after standing for a period of time, the aqueous liquid and the lubricating fluid will separate into layers. The aqueous liquid at the bottom of the secondary separation tank 14 will enter the separation sleeve 17 through the groove 18.

[0084] Specifically, the inlet of the outlet pipe 16 is higher than the location of the slot 18 of the separation sleeve 17. Aqueous liquids enter the separation sleeve 17 through the bottom slot 18. When the solution level in the secondary separation tank 14 is higher than the inlet of the outlet pipe 16, the aqueous liquid in the separation sleeve 17 will rise to the same height as the solution, allowing it to enter the outlet pipe 16 through the inlet and be discharged from the secondary separation tank 14 through the outlet pipe 16.

[0085] The outlet pipe 16 is threadedly connected to the outlet hole 15. Rotating the outlet pipe 16 adjusts its height relative to the secondary separation tank 14. In other words, the inlet height of the outlet pipe 16 is adjustable. Once the solution level in the secondary separation tank 14 reaches the inlet height, the aqueous liquid begins to be discharged. Adjusting the inlet height of the outlet pipe 16 adjusts the liquid level that the secondary separation tank 14 can hold, thus adjusting the time the solution remains in the secondary separation tank 14 for separation.

[0086] The outlet tube 16 is fitted with only a limiting tube, which cannot pass through the threaded hole. That is, during the thread adjustment of the outlet tube 16, the limiting tube plays a role in limiting the movement limit of the outlet tube 16.

[0087] The limiting tube design prevents the height of the outlet tube 16 from falling below the slot 18 during the adjustment of the outlet tube height.

[0088] A knob 19 is provided above the outlet tube 16. The operator can rotate the outlet tube 16 by operating the knob 19, which makes it easy to adjust the height of the outlet tube 16.

[0089] The separation sleeve 17 has an opening at the top. The user can operate the knob 19 through the opening at the top of the separation sleeve 17.

[0090] The secondary separation tank 14 is provided with an outlet 20. The bottom surface of the outlet 20 is lower than the height of the separation sleeve 17, and higher than the height of the outlet pipe 16. That is, the liquid in the secondary separation tank 14 will first reach the height of the outlet pipe 16, and then the aqueous liquid will be discharged outward through the outlet pipe 16. Then the liquid in the secondary separation tank 14 continues to rise to the height of the outlet 20, and the lubricating fluid on the upper surface of the secondary separation tank 14 is discharged from the secondary separation tank 14 through the outlet 20.

[0091] The outlet 20 is connected to the collection basket 21. The lubricating fluid after the final secondary separation will fall into the collection basket 21 for recycling.

[0092] By using a combination design based on specific gravity, the specific gravity relationship between oily and watery liquids is efficiently and rationally utilized to achieve two-stage separation of the lubricant, resulting in a relatively better separation effect. The compact and integrated design layout saves unnecessary space and reduces the use and waste of other materials.

[0093] Example 6 can be used in combination with any of the above examples. Example 6 is specifically as follows: Figure 1 As shown: This application includes a base 22 for supporting the steel belt 2 oil-water separator. The base 22 can be connected to the liquid collection tank of any device. The base 22 eliminates the need for the steel belt 2 oil-water separator to be installed on the target housing; it can be placed directly inside the housing, facilitating compatibility with multiple devices, providing good flexibility, and reducing operating costs.

[0094] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A steel belt type oil-water separator, characterized in that... The device includes a frame, a steel belt, a first roller, and a second roller. The first roller is fixed on the frame, and the second roller is mounted on the frame via a tensioning mechanism. The second roller is movable relative to the frame under force. The steel belt is sleeved around the first roller and the second roller. The steel belt is in a tensioned state, and part of the steel belt extends into the liquid to be separated. The surfaces of the first roller and the second roller are provided with grooves. The second roller has a plurality of second grooves evenly distributed on its surface, with adjacent second grooves spaced at equal intervals; the second roller has a plurality of flow channels arranged parallel to the axial direction of the second roller, the flow channels passing through the two sides of the second roller, and the flow channels communicating with the second grooves.

2. The steel belt oil-water separator according to claim 1, characterized in that... The tensioning mechanism includes an elastic element and a bracket. The first end of the bracket is connected to the frame through the elastic element, and the second end of the bracket is connected to a second roller. The second roller is rotatable relative to the bracket.

3. The steel belt oil-water separator according to claim 2, characterized in that... The bracket includes a first U-shaped component, a second U-shaped component, and a connecting rod. The two legs of the first U-shaped component are respectively connected to elastic elements, which are connected to the frame. The two legs of the second U-shaped component are connected to the shaft of the second roller. The connecting rod connects the first U-shaped component and the second U-shaped component.

4. The steel belt oil-water separator according to claim 1, characterized in that... Scrapers and guide grooves are provided on both sides of the downward-moving steel strip. The upper edge of the scraper contacts the steel strip, and the lower edge of the scraper guides the guide groove, which does not contact the steel strip.

5. The steel belt oil-water separator according to claim 4, characterized in that... The steel strip at the contact point of the scraper blades is offset horizontally by 0.5mm to 4mm towards the side where the drive wheel is located.

6. The steel belt oil-water separator according to claim 4, characterized in that... The angle between the upper edge of the scraper and the horizontal plane is 20° to 70°.

7. The steel belt oil-water separator according to claim 4, characterized in that... It also includes a secondary separation tank, and the guide tank is connected to the secondary separation tank; the bottom surface of the secondary separation tank is provided with an outlet hole, and an outlet pipe is installed at the outlet hole; the outlet pipe is covered with a separation sleeve, and the bottom of the separation sleeve is provided with a groove.

8. The steel belt oil-water separator according to claim 7, characterized in that... The outlet tube is threadedly connected to the outlet hole, and rotating the outlet tube can adjust the height of the outlet tube relative to the secondary separation groove; the inlet of the outlet tube is higher than the groove opening of the separation sleeve.

9. The steel belt oil-water separator according to claim 1, characterized in that... It is equipped with a base for supporting the steel strip oil-water separator, which can be connected to the liquid collection tank of any equipment.

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