A waste oil and waste emulsion treatment and regeneration device

Abstract

This invention belongs to the field of waste liquid purification and treatment technology, specifically a waste oil and waste emulsion treatment and regeneration device, including a waste liquid purification equipment. The equipment contains a purification tank with a purification filter element inside. The purification tank is connected to the outside via an inlet pipe and an outlet pipe. The purification filter element is divided into a filtration layer, an adsorption layer, and a central drainage zone from the outside towards the central axis. This invention adjusts the tension of the filter cloth by controlling a first telescopic device. When excessive impurities accumulate on the filter cloth surface, affecting the passage of waste liquid, the tension of the filter cloth is released, and then a mechanical vibration device connected to the filter cloth is activated to cause the solid particles adhering to the filter cloth surface to detach due to vibration. This improves the cleaning efficiency of the filter cloth, reduces the time and effort consumed by manual cleaning, and increases the regeneration efficiency of the waste liquid.

Description

Technical Field

[0001] This invention belongs to the field of waste liquid purification and treatment technology, specifically a waste oil and waste emulsion treatment and regeneration device. Background Technology

[0002] Waste oil refers to mineral oil (such as lubricating oil, hydraulic oil, etc.) that has lost its original performance or has been contaminated. Emulsion is a stable emulsion composed of an oil phase (mineral oil or synthetic oil), an aqueous phase, an emulsifier (such as a surfactant), and additives (such as rust inhibitors and bactericides). It is mainly used for cooling, lubrication, and rust prevention in metal processing. Waste emulsion is generated from the waste produced by its performance failure during machining.

[0003] Waste oil and waste emulsions generated in industrial production, if discharged indiscriminately, will seriously pollute soil and water bodies (for example, oily substances can block dissolved oxygen in water bodies, and organic matter and heavy metals in emulsions can cause COD and heavy metal levels in water bodies to exceed standards), and must be treated in accordance with regulations.

[0004] For waste lubricating oil, emulsions, and other waste liquids generated during machining, in order to reduce resource waste and in line with the theme of energy conservation and environmental protection, these waste liquids can be purified and impurities removed so that they can be recycled and reused. In commonly used filtration equipment, purification filter cartridges are generally used to filter and purify waste liquids, separating solid impurities from the waste liquid onto the surface of the filter cloth. However, in actual use, operators have found that solid impurities adhere to the surface of the filter cloth and continue to accumulate, affecting the filter cloth's permeability. Therefore, it is necessary to frequently replace the purification filter cartridges and disassemble and wash the filter cloth, which affects the purification efficiency. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes a waste oil and waste emulsion treatment and regeneration device.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows: This invention proposes a waste oil and waste emulsion treatment and regeneration device, including a waste liquid purification device. The waste liquid purification device is provided with a purification tank, and a purification filter element is provided inside the purification tank. The purification tank is connected to the outside through an inlet pipe, an outlet pipe, and a drain pipe. The purification filter element is divided into a filtration layer, an adsorption layer, and a central draining zone from the outside to the central axis. The outlet at the bottom of the draining zone is connected to the outlet pipe and is connected to the outside.

[0007] The adsorption layer is filled with activated carbon adsorption material to adsorb and purify the waste liquid that passes through the filter layer.

[0008] The filter layer includes an annular fixed mesh and a filter cloth wrapped around the outside of the fixed mesh; a fixed ring is provided at the top of the filter cloth, and the fixed ring is connected to a mechanical vibration device inside the fixed plate at the top of the purification filter element, and the mechanical vibration device is controlled by an external controller; the movable ring at the bottom of the filter cloth is connected to the output end of the first telescopic device provided on the mounting plate at the bottom of the purification filter element.

[0009] Preferably, the filter cloth includes a filtration zone and a deformation zone, the filtration zone is made of a non-elastic material, the deformation zone is made of an elastic material, and the filtration zone and the deformation zone are staggered along the vertical direction.

[0010] Preferably, adjacent deformation zones are connected by a connecting portion that extends through the surface of the filter zone between adjacent deformation zones.

[0011] Preferably, the deformation zone has a double-layer structure, and a purification gap is formed between the double-layer structure. In the double-layer structure of the deformation zone, the mesh size of the part closer to the drainage zone is smaller than the mesh size of the part farther away from the drainage zone.

[0012] Preferably, impact holes are evenly distributed on the fixed mesh at the location opposite the deformation zone, and the impact holes have a conical structure.

[0013] Preferably, the number of filter layers in the purification filter element from the outside to the inside is not less than two, and the area between adjacent filter layers is a separation zone;

[0014] The mounting plate is provided with a mounting groove at the part corresponding to the bottom of the filter layer, and the mounting groove communicates with the bottom of the separation zone; an intercepting plate is slidably provided on the inner wall of the mounting groove, the upper surface of the intercepting plate abuts against the bottom of the moving ring, and closes the opening at the bottom of the separation zone; the bottom of the intercepting plate is connected to the output end of the second telescopic device inside the mounting plate;

[0015] A support rod is provided at the bottom of the fixed net, and the support rod slides through the interception plate and is fixedly connected to the mounting plate.

[0016] Preferably, a cleaning ring is provided in the separation zone near the outer surface of the filter cloth. The cleaning rings are evenly distributed along the vertical direction and are connected to the fixing plate and the mounting plate respectively by vertical connecting rods. The cleaning ring has a triangular cross-section and the conical end of the cleaning ring points to the outer surface of the filter cloth.

[0017] Preferably, the top of the connecting rod is connected to a mechanical vibration device in the fixed plate, and the bottom of the connecting rod is abutted against the upper surface of the interceptor plate.

[0018] Preferably, a protective mesh is also provided on the outer surface of the sidewall of the purification filter element, and the protective mesh is located on the outside of the filter layer.

[0019] The beneficial effects of this invention are as follows:

[0020] The waste oil and waste emulsion treatment and regeneration device of the present invention adjusts the tension of the filter cloth by controlling the first telescopic device. When too many impurities accumulate on the surface of the filter cloth, affecting the passage of waste liquid, the first telescopic device drives the moving ring to move upward, thereby relieving the tension of the filter cloth. Then, by activating the mechanical vibration device connected to the fixed plate installed on the top of the filter cloth, the solid particulate impurities adhering to the surface of the filter cloth are detached due to the vibration, improving the cleaning efficiency of the filter cloth. This allows the waste liquid purification equipment to be quickly put into the purification treatment of waste liquid, reducing the time and effort consumed in cleaning and improving the regeneration and purification efficiency of waste liquid. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of the present invention from the frontal view;

[0024] Figure 3 This is a partial sectional view of the invention from the side view direction;

[0025] Figure 4 This is a perspective view of the purification filter element in this invention;

[0026] Figure 5 This is a cross-sectional view of the purification filter element in this invention.

[0027] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0028] Figure 7 yes Figure 5 A magnified view of a section at point B in the middle;

[0029] Figure 8 This is a partial cross-sectional schematic diagram of the filter cloth in this invention;

[0030] Figure 9 This is a perspective view of the cleaning ring in this invention;

[0031] Figure 10 This is a perspective view of the interceptor plate in this invention.

[0032] In the diagram: Waste liquid purification equipment 1, purification tank 11, purification filter element 12, fixing plate 121, mounting plate 122, separation zone 123, mounting groove 124, interception plate 125, support rod 126, cleaning ring 127, connecting rod 128, inlet pipe 13, outlet pipe 14, filter layer 15, fixing net 151, filter cloth 152, fixing ring 153, moving ring 154, filtration zone 155, deformation zone 156, connecting part 157, purification gap 158, impact hole 159, adsorption layer 16, drainage zone 17, outlet 171, protective net 18, drainage pipe 19, mechanical vibration device 2, first telescopic device 3, second telescopic device 4. Detailed Implementation

[0033] The technical solutions of 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.

[0034] Example 1:

[0035] As shown in the attached diagram of the instruction manual. Figures 1-10 As shown, this application proposes a waste oil and waste emulsion treatment and regeneration device, including a waste liquid purification device 1. The waste liquid purification device 1 is provided with a purification tank 11. The purification tank 11 is provided with a purification filter element 12. The purification tank 11 is connected to the outside through an inlet pipe 13, an outlet pipe 14 and a drain pipe 19. The purification filter element 12 is divided into a filter layer 15, an adsorption layer 16 and a central drain area 17 from the outside to the central axis. The outlet 171 at the bottom of the drain area 17 is connected to the outlet pipe 14 and is connected to the outside.

[0036] The waste liquid purification equipment is equipped with pumps corresponding to the inlet pipe 13, outlet pipe 14, and drain pipe 19. The selection of pump types, their arrangement, wiring, and control methods within the waste liquid purification equipment are all standard choices for pump power equipment in existing waste oil purification equipment and will not be described in detail here. The outlet pipe 14 is located at the bottom of the waste liquid purification equipment 1, below the purification tank 11, and communicates upwards with the interior of the drain area 17. The inlet pipe 13 is located at the bottom of the waste liquid purification equipment, and its end extends upwards inside the waste liquid purification equipment to connect to the purification tank 19. In section 1, a corresponding pump provides power to draw external waste liquid into the bottom of the purification tank 11. The drain pipe 19 interface is located near the bottom of the purification tank 11 and is connected to the bottom of the purification tank 11. The corresponding pump provides power to pump out residual waste oil, which is used to discharge the residual waste liquid rich in oil and impurities at the end of the waste liquid purification process. This avoids the waste liquid with excessively high oil and impurity content from causing excessive load on the purification filter element 12 or even clogging during the continued purification process. The above-mentioned pump and corresponding motor, cooling fan and other power-related equipment are integrated into the bottom of the waste liquid purification equipment for easy maintenance and repair.

[0037] The adsorption layer 16 is filled with activated carbon adsorbent material to adsorb and purify the waste liquid that has passed through the filter layer 15. The adsorption layer 16 is a double-layered annular mesh structure with the bottom closed. The activated carbon adsorbent material is filled into the annular area formed inside the adsorption layer 16.

[0038] The filter layer 15 includes an annular fixed mesh 151 and a filter cloth 152 wrapped around the outside of the fixed mesh 151. A fixed ring 153 is provided on the top of the filter cloth 152. The fixed ring 153 is connected to the mechanical vibration device 2 inside the fixed plate 121 on the top of the purification filter element 12. The mechanical vibration device 2 is controlled by an external controller. There are various implementation schemes for the specific structure of the mechanical vibration device 2. This application provides a possible technical solution, in which an elastically connected annular plate is provided inside the fixed plate 121. A vibration motor is provided on the annular plate. The top of the fixed ring 153 is connected to the annular plate through a fixed rod. The controller controls the elastic vibration of the annular plate. The fixed rod transmits the elastic vibration to the fixed ring 153 and the connected filter cloth 152 to achieve vibration and impurity removal of the filter cloth 152.

[0039] The moving ring 154 at the bottom of the filter cloth 152 is connected to the output end of the first telescopic device 3 set on the bottom mounting plate 122 of the purification filter element 12. The first telescopic device 3 can be an existing miniature electric telescopic rod, which is controlled by an external controller.

[0040] Specific workflow: For waste lubricating oil, emulsion and other waste liquids generated during machining, in order to reduce resource waste and in line with the theme of energy conservation and environmental protection, these waste liquids can be purified and impurities removed so that they can be recycled and reused.

[0041] During this process, a large number of fine impurities are mixed in when the waste liquid plays a role in the machining process. These fine impurities need to be filtered and separated. Therefore, after collecting the waste liquid and initially filtering out the large particles, the waste liquid is sent into the purification tank 11 through the inlet pipe 13. The purification tank 11 is a cylindrical area inside the body of the waste liquid purification equipment 1, and a purification filter element 12 is set in the middle. The pump equipment connected to the outlet pipe 14 is started, and a negative pressure area is formed in the drainage area 17 in the middle area inside the purification filter element 12, which causes the waste liquid in the outer purification tank 11 to flow towards the drainage area 17. During this process, the waste liquid penetrates the filter layer 15 and adsorption layer 16 set on the outside of the purification filter element 12 and is filtered and purified.

[0042] The filter cloth 152 on the filter layer 15 filters and separates solid particulate impurities from the waste liquid. The activated carbon adsorbent material in the adsorption layer 16 can adsorb and purify the waste liquid that permeates and flows through the gaps between the activated carbon adsorbent particles, separating out the fine impurities. The loose and porous structure of the activated carbon can adsorb particulate impurities in the waste liquid on the one hand, and on the other hand, it can adsorb some organic pollutants in the waste liquid through van der Waals forces, such as surfactant degradation products and microbial metabolites, thereby reducing the content of organic pollutants in the waste liquid, improving the purity of the purified liquid, and improving the purification effect of the waste liquid. Finally, the purified waste liquid permeates into the middle drainage zone 17, flows out from the bottom outlet 171, and is introduced into the outside by the connected outlet pipe 14 to enter the next treatment process, ultimately realizing the purification and regeneration of the waste liquid.

[0043] As the purification process is about to end, some waste liquid remains in the area outside the purification filter element 12 inside the purification tank 11. This waste liquid is rich in solid oil and impurities filtered and separated by the purification filter element 12. This waste liquid can be pumped to the outside for treatment through the drain pipe 19 connected to the bottom of the purification tank 11. This can remove the separated oil and impurities, reduce the situation where too much oil and impurities adhere to the outside of the purification filter element 12, which affects the permeability, and ensure the normal operation of the purification filter element 12.

[0044] After working for a period of time, a large number of particulate impurities accumulate on the outer surface of the filter cloth 152 in the filter layer 15 and adhere to the surface of the filter cloth 152. Compared with the prior art, in order to avoid damage to the filter cloth 152 and improve the cleaning effect, it is necessary to open the equipment and remove the filter cloth 152 for cleaning. This application can adjust the tension of the filter cloth 152 by controlling the first telescopic device 3. When filtering waste liquid normally, the telescopic end of the first telescopic device 3 is controlled to drive the moving ring 154 to move down, so that the filter cloth 152 in the filter layer 15 is in a taut state, which can normally filter and purify the permeating waste liquid.

[0045] When it is found that excessive impurities accumulated on the surface of the filter cloth 152 affect the passage of waste liquid after a period of operation, and the filter cloth 152 needs to be cleaned; specifically, the first telescopic device 3 can be controlled to move the moving ring 154 upward, so that the filter cloth 152 is released from its tight state and is in a loose state. At this time, the mechanical vibration device 2 connected to the fixed plate 121 installed on the top of the filter cloth 152 is activated. After the mechanical vibration device 2 is activated, it can drive the fixed plate 121 to vibrate elastically relative to the machine body, thereby driving the filter cloth 152 to vibrate; because the filter cloth 152 is in a loose state at this time, the filter cloth 152 can obtain a larger movement deformation margin, avoiding the filter cloth 152 being pulled and damaged due to vibration;

[0046] As the filter cloth 152 vibrates, the solid particles and impurities adhering to the surface of the filter cloth 152 are dislodged due to the vibration, and backwashing and purification can begin. Specifically, the original outlet pipe 14 can be connected to the cleaning liquid supply system, and the corresponding pump equipment can be started in reverse to send the cleaning liquid back into the drain area 17, which permeates and purifies the filter element 12 from the inside out. Then, the cleaning liquid that has permeated to the outside of the purification tank 11 is drawn to the outside through the original inlet pipe 13.

[0047] This allows the cleaning fluid to flow outwards from the drain zone 17, impacting the outer filter layer 15 and adsorption layer 16. Combined with the vibration of the filter cloth 152, the solid impurities adhering to the surface of the filter cloth 152 are carried away by the reverse-flowing cleaning fluid, thereby improving the cleaning efficiency of the filter cloth 152. After the cleaning fluid is extracted and the filter layer 15 is self-cleaned, the waste liquid purification equipment 1 can be quickly put into the purification treatment of waste liquid, reducing the time and effort consumed in cleaning and improving the regeneration and purification efficiency of waste liquid.

[0048] Example 2:

[0049] Based on Embodiment 1, the filter cloth 152 includes a filtration zone 155 and a deformation zone 156. The filtration zone 155 is made of a non-elastic material, while the deformation zone 156 is made of an elastic material. The filtration zone 155 and the deformation zone 156 are staggered along the vertical direction. The two types of filter cloths 152 corresponding to the filtration zone 155 and the deformation zone 156 are fixedly connected to each other. They can be sewn together to achieve fixation or connected to each other through fasteners. In this way, after long-term use, if some of the filtration zone 155 or the deformation zone 156 is damaged, new filter cloths 152 corresponding to the filtration zone 155 or the deformation zone 156 can be replaced by removing the sewing threads or fasteners, thus achieving reuse and improving service life.

[0050] Specific workflow: Based on the specific workflow in Embodiment 1, in order to further reduce the damage to the filter cloth 152 caused by external tension and vibration impact, and to extend the service life of the filter cloth 152, this application sets the filter cloth 152 to be divided into multiple groups of filtration zones 155 and deformation zones 156, which are staggered along the vertical direction; both the filtration zone 155 and the deformation zone 156 are annular, and the vertical length of the filtration zone 155 is greater than the vertical length of the deformation zone 156. For example, the vertical length of the filtration zone 155 can be 2-3 times the vertical length of the deformation zone 156, so that the filtration zone 155 mainly undertakes the work of filtering waste liquid;

[0051] Furthermore, since the deformation zone 156 uses a filter cloth 152 made of elastic material and the filtration zone 155 uses a filter cloth 152 made of non-elastic material, when the external force causes the filter cloth 152 to tend to deform and stretch, the deformation zone 156 has a large deformation margin, so the force on the filter cloth 152 can be buffered by deformation, reducing the situation where the filter cloth 152 is pulled and damaged.

[0052] Furthermore, the elastic deformation zone 156 can better transmit external vibrations to the adjacent filter zone 155, thus making the vibration more evenly distributed across the entire filter cloth 152. This allows for more thorough separation of particulate impurities adhering to the surface of the filter zone 155. In particular, when particulate impurities adhering to the outer surface of the filter cloth 152 accumulate and adhere to each other to form layered dirt, the external force causes the filter cloth 152 to be stretched, resulting in a significant change in the length of the continuously distributed deformation zone 156 on the filter cloth 152, compared to the relatively small deformation amplitude of the filter zone 155. This leads to a significant difference in the forces exerted on the layered dirt by the filter zone 155 and the deformation zone 156 in the gaps between the filter cloths 152. This difference in deformation amplitude causes relative movement between the filter cloth 152 and the layered dirt, prompting the layered dirt to peel off from the surface of the filter cloth 152, further improving the cleaning efficiency of the filter cloth 152 for surface-adhered impurities.

[0053] Example 3:

[0054] Based on Embodiment 2, adjacent deformation zones 156 are connected by a connecting part 157, which passes through the middle filter zone 155. The connecting part 157 is made of a non-elastic material, specifically a cloth rope or strip. The connecting part 157 can slide in contact with the inner surface of the filter zone 155, and several stitching points can be provided to facilitate the transmission of vibration. The two ends of the connecting part 157 are fixedly stitched together with the adjacent deformation zones 156.

[0055] The deformation zone 156 has a double-layer structure, and a purification gap 158 is formed between the two layers. In the double-layer structure of the deformation zone 156, the part closer to the drainage zone 17 is the inner layer, and the part farther away from the drainage zone 17 is the outer layer. The mesh size of the inner layer is smaller than that of the outer layer, and the filter pores of the inner layer are larger than those of the outer layer. This makes the resistance encountered by the waste liquid when penetrating the inner layer less than the resistance encountered when penetrating the outer layer, reducing the situation where particulate impurities are left inside the purification gap 158 and adhere to each other due to the obstruction of the outer layer when the waste liquid passes through the purification gap 158, thus affecting the permeability.

[0056] Specific workflow: Based on the specific workflow in Embodiment 2, as the first telescopic device 3 at the bottom is activated, the telescopic end drives the fixed ring 153 to move vertically back and forth, thereby causing the filter cloth 152 to switch repeatedly between a taut state and a relaxed state, causing the filter cloth 152 to deform; especially for the deformation area 156 on the filter cloth 152, under the action of external force, the deformation area 156 continuously undergoes the process of stretching and then recovering, and the vertically distributed deformation areas 156 are connected by the connecting part 157, so that the external force can be better transmitted along the connecting part 157 to the position on the filter cloth 152 away from the telescopic device or mechanical vibration device 2, thereby making the deformation effect of the external force on the vertically distributed deformation areas 156 more uniform;

[0057] Furthermore, during the process of transmitting external force through the connecting part 157, the elastic vibration is also transmitted to the inner surface of the middle filter zone 155, causing the filter zone 155 to vibrate synchronously due to the vibration transmitted by the connecting part 157, thereby accelerating the shedding of particulate impurities adhering to the outer surface of the filter zone 155.

[0058] Furthermore, impact holes 159 are evenly provided on the fixed net 151 at the part facing the deformation zone 156. The impact holes 159 have a conical structure and can be implemented by setting a conical tube. During the backwashing process of the cleaning fluid, the cleaning fluid passing through the impact holes 159 concentrates to impact the area of ​​the deformation zone 156, causing the deformation zone 156 to vibrate due to the impact.

[0059] Furthermore, because the deformation zone 156 has a double-layer structure and the filter pores of the inner layer are larger, during the backwashing of the filter cloth 152 by the cleaning fluid, the cleaning fluid released from the impact hole 159 first contacts the inner layer of the deformation zone 156 and accelerates its penetration into the purification gap 158. The cleaning fluid accumulates in the purification gap 158 and increases the space of the purification gap 158, causing the deformation zones 156 on both sides to expand and deform, increasing the lateral deformation amplitude of the deformation part, and further promoting the peeling off of the layered dirt adhering to the outer surface of the filter cloth 152.

[0060] As the first telescopic device 3 pulls the filter cloth 152 downward, the filter cloth 152 is tightened, and the deformation zone 156 is tightened and tends to flatten. This causes the cleaning fluid accumulated in the purification gap 158 to be pressurized and accelerate its outward penetration, which enhances the penetration and cleaning effect on the filter cloth 152 in the surrounding area and further improves the cleaning effect of the cleaning fluid filter cloth 152.

[0061] Example 4:

[0062] Based on Embodiment 3, the number of filter layers 15 in the purification filter element 12 from the outside to the inside is not less than two, and the area between adjacent filter layers 15 is the separation zone 123; the mounting plate 122 is provided with a mounting groove 124 at the part corresponding to the bottom of the filter layer 15, and the mounting groove 124 communicates with the bottom of the separation zone 123; an intercepting plate 125 is slidably provided on the inner wall of the mounting groove 124, the upper surface of the intercepting plate 125 abuts against the bottom of the moving ring 154, and realizes the closure of the bottom opening of the separation zone 123; the bottom of the intercepting plate 125 is connected to the output end of the second telescopic device 4 inside the mounting plate 122;

[0063] A support rod 126 is provided at the bottom of the fixed net 151. The support rod 126 slides through the interception plate 125 and is fixedly connected to the mounting plate 122.

[0064] Specific workflow: Based on the specific workflow in Example 3, the gap areas between adjacent filter layers 15 and the area between filter layer 15 and adsorption layer 16 are all classified as separation zones 123. To prevent solid impurities separated from the waste liquid from accumulating in the separation zones 123 during the waste liquid purification process, thus affecting the overall permeability of the purification filter element 12, a mounting groove 124 is provided on the mounting plate 122 at the bottom, which communicates with each of the upper separation zones 123.

[0065] During normal waste liquid filtration, the second telescopic device 4 is controlled to move the interceptor plate 125 upward, supporting the upper fixed net 151, adsorption layer 16 and other structures, while sealing the bottom of the separation zone 123 between the layers, so that the waste liquid can only pass through the filter layer 15 for filtration and purification. When purification is required, the second telescopic device 4 is controlled to move the interceptor plate 125 downward, so that the bottom of the separation zone 123 can communicate with the outside. In this way, the cleaning liquid has two flow paths after entering the separation zone 123. A part of the cleaning liquid flows horizontally to flush through the filter layer 15 and adsorption layer 16, while carrying away the impurities adhering therein. The other part of the cleaning liquid flows downward to flush away the solid impurities accumulated inside the separation zone 123 and carry them out to the outside through the gap area of ​​the installation groove 124 opened at the bottom.

[0066] Example 5:

[0067] Based on Embodiment 4, a cleaning ring 127 is provided in the separation zone 123 near the outer surface of the filter cloth 152. The cleaning ring 127 is evenly distributed along the vertical direction, and the cleaning ring 127 is connected to the fixing plate 121 and the mounting plate 122 respectively through the vertical connecting rod 128. The cleaning ring 127 has a triangular cross section, and the conical end of the cleaning ring 127 points to the outer surface of the filter cloth 152.

[0068] The top of the connecting rod 128 is connected to the mechanical vibration device 2 in the fixed plate 121, and the bottom of the connecting rod 128 is in contact with the upper surface of the interceptor plate 125.

[0069] Specific workflow: Based on the specific workflow in Example 4, as the mechanical vibration device 2 is activated, it drives the connecting rod 128 and the cleaning ring 127 to vibrate vertically. As the cleaning fluid impacts in the opposite direction, it causes the filter cloth 152 to deform and bulge in the direction away from the liquid inlet area. At this time, the outer surface of the filter cloth 152 contacts the conical end of the cleaning ring 127. With the vibration of the cleaning ring 127, the fixed particulate impurities adhering to the outer surface of the filter cloth 152 can be further cleaned.

[0070] Furthermore, a protective net 18 is provided on the outer surface of the side wall of the purification filter element 12. The protective net 18 is located outside the filter layer 15. During the transportation and handling of the purification filter element 12, the mesh structure of the protective net 18 protects the relatively fragile structures such as the internal filter layer 15 and adsorption layer 16, and avoids damage to the internal structure of the purification filter element 12 caused by external forces.

[0071] 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 illustrative of the principles of 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 and waste emulsion treatment and regeneration device, comprising a waste liquid purification device (1), wherein the waste liquid purification device (1) is provided with a purification tank (11), and a purification filter element (12) is provided inside the purification tank (11). The purification tank (11) is connected to the outside through an inlet pipe (13), an outlet pipe (14), and a drain pipe (19), characterized in that: The purification filter element (12) is divided into a filter layer (15), an adsorption layer (16) and a central drainage zone (17) from the outside to the central axis. The outlet (171) at the bottom of the drainage zone (17) is connected to the outlet pipe (14) and communicates with the outside. The adsorption layer (16) is filled with activated carbon adsorption material to adsorb and purify the waste liquid that passes through the filter layer (15). The filter layer (15) includes an annular fixed mesh (151) and a filter cloth (152) wrapped around the outside of the fixed mesh (151); a fixed ring (153) is provided on the top of the filter cloth (152), and the fixed ring (153) is connected to the mechanical vibration device (2) inside the fixed plate (121) on the top of the purification filter element (12), and the mechanical vibration device (2) is controlled by an external controller; the moving ring (154) at the bottom of the filter cloth (152) is connected to the output end of the first telescopic device (3) provided on the bottom mounting plate (122) of the purification filter element (12); The filter cloth (152) includes a filtration zone (155) and a deformation zone (156). The filtration zone (155) is made of a non-elastic material, and the deformation zone (156) is made of an elastic material. The filtration zone (155) and the deformation zone (156) are staggered along the vertical direction. Adjacent deformation zones (156) are connected by a connecting part (157), which extends through the surface of the filter zone (155) between adjacent deformation zones (156). The deformation zone (156) has a double-layer structure, and a purification gap (158) is formed between the double-layer structure. In the double-layer structure of the deformation zone (156), the mesh size of the part closer to the drain zone (17) is smaller than the mesh size of the part farther away from the drain zone (17). Impact holes (159) are evenly arranged on the fixed net (151) at the part directly opposite the deformation zone (156), and the impact holes (159) are conical in shape.

2. The waste oil and waste emulsion treatment and regeneration device according to claim 1, characterized in that: The purification filter element (12) has no less than two filter layers (15) from the outside to the inside, and the area between adjacent filter layers (15) is a separation zone (123); The mounting plate (122) is provided with a mounting groove (124) at the bottom of the filter layer (15), and the mounting groove (124) is connected to the bottom of the separation zone (123); an interceptor plate (125) is slidably provided on the inner wall of the mounting groove (124), and the upper surface of the interceptor plate (125) abuts against the bottom of the moving ring (154) and closes the bottom opening of the separation zone (123); the bottom of the interceptor plate (125) is connected to the output end of the second telescopic device (4) inside the mounting plate (122); A support rod (126) is provided at the bottom of the fixed net (151). The support rod (126) slides through the interception plate (125) and is fixedly connected to the mounting plate (122).

3. The waste oil and waste emulsion treatment and regeneration device according to claim 2, characterized in that: A cleaning ring (127) is provided in the separation zone (123) near the outer surface of the filter cloth (152). The cleaning ring (127) is evenly distributed along the vertical direction and is connected to the fixing plate (121) and the mounting plate (122) respectively by a vertical connecting rod (128). The cleaning ring (127) has a triangular cross section and the conical end of the cleaning ring (127) points to the outer surface of the filter cloth (152).

4. The waste oil and waste emulsion treatment and regeneration device according to claim 3, characterized in that: The top of the connecting rod (128) is connected to the mechanical vibration device (2) in the fixed plate (121), and the bottom of the connecting rod (128) is abutted by the upper surface of the interceptor plate (125).

5. The waste oil and waste emulsion treatment and regeneration device according to claim 4, characterized in that: A protective net (18) is also provided on the outer surface of the side wall of the purification filter element (12), and the protective net (18) is located on the outside of the filter layer (15).

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