Waste oil and waste emulsion treatment and regeneration device

Abstract

The invention belongs to the technical field of waste liquid purification treatment, and particularly relates to a waste oil and waste emulsion treatment and regeneration device which comprises waste liquid purification equipment, a purification tank is arranged in the waste liquid purification equipment, a purification filter element is arranged in the purification tank, and the purification tank is communicated with the outside through a liquid inlet pipe and a liquid outlet pipe; the purification filter element is sequentially divided into a filter layer, an adsorption layer and a central liquid discharge area from the outer side to the central axis; the tightening degree of the filter cloth is adjusted by controlling the first telescopic equipment, when excessive impurities enriched on the surface of the filter cloth influence the trafficability of waste liquid, the tightening state of the filter cloth is relieved, and then the mechanical vibration device connected with the filter cloth is started to enable solid particle impurities adhered to the surface of the filter cloth to be separated due to the vibration effect; the cleaning efficiency of the filter cloth is improved, the time and energy consumed by manual cleaning are reduced, and the regeneration treatment efficiency of waste liquid is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of waste liquid purification and treatment, in particular to a waste oil and waste emulsion treatment and regeneration device. Background Art

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

[0003] If waste oil and waste emulsion generated in industrial production are discharged at will, they will seriously pollute the soil and water bodies (for example, oil 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 handled in compliance with regulations.

[0004] For waste lubricating oil, emulsion and other waste liquids generated during machining, in order to reduce resource waste and comply with the theme of energy conservation and environmental protection, these waste liquids can be purified and impurities can be separated so that they can be recycled and reused; in commonly used filtration equipment, purification filter elements are generally used to filter and purify waste liquids, and solid impurities in the waste liquid are separated 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, which will affect the permeability of the filter cloth. Therefore, it is necessary to frequently replace the purification filter element and disassemble and wash the filter cloth, which affects the purification efficiency. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the present invention proposes a waste oil and waste emulsion treatment and regeneration device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: the present invention proposes a waste oil and waste emulsion treatment and regeneration device, including a waste liquid purification device, wherein a purification tank is provided inside the waste liquid purification device, and a purification filter element is provided inside the purification tank. The purification tank is connected to the outside through a liquid inlet pipe, a liquid outlet pipe and a liquid discharge pipe; the purification filter element is divided into a filter layer, an adsorption layer and a central liquid discharge area in the direction from the outside to the central axis, and the liquid outlet at the bottom of the liquid discharge area is connected to the liquid outlet pipe and communicates with the outside; The adsorption layer is filled with activated carbon adsorption material to adsorb and purify the waste liquid passing through the filter layer; The filter layer includes an annular fixed net and a filter cloth wrapped around the outside of the fixed net; a fixed ring is provided on the top of the filter cloth, and the fixed ring is connected to the 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 bottom mounting plate of the purification filter element.

[0007] Preferably, the filter cloth comprises a filtering area and a deformation area, the filtering area is made of a non-elastic material, the deformation area is made of an elastic material, and the filtering area and the deformation area are staggered along the vertical direction.

[0008] Preferably, adjacent deformation zones are connected via a connecting portion, and the connecting portion extends through the surface of the filter zone between adjacent deformation zones.

[0009] Preferably, the deformation zone is a double-layer structure, and a purification gap is formed between the double-layer structures. In the double-layer structure of the deformation zone, the mesh number of the part close to the drainage area is smaller than the mesh number of the part away from the drainage area.

[0010] Preferably, impact holes are evenly arranged on the fixed net at positions facing the deformation zone, and the impact holes are conical structures.

[0011] Preferably, the purification filter element has at least two filter layers from the outside to the inside, and the area between adjacent filter layers is a separation area; The mounting plate is provided with a mounting groove at a position corresponding to the bottom of the filter layer, and the mounting groove is communicated with the bottom of the separation zone; an interception plate is slidably provided on the inner wall of the mounting groove, and the upper surface of the interception plate abuts against the bottom of the movable ring and closes the bottom opening of the separation zone; the bottom of the interception plate is connected to the output end of the second telescopic device inside the mounting plate; A support rod is provided at the bottom of the fixed net, and the support rod slides through the intercepting plate and is fixedly connected to the mounting plate.

[0012] 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 the cleaning rings are respectively connected to the fixed plate and the mounting plate through vertical connecting rods, the cross-section of the cleaning ring is triangular, and the conical end of the cleaning ring points to the outer surface of the filter cloth.

[0013] Preferably, the top of the connecting rod is connected to the mechanical vibration device in the fixed plate, and the bottom of the connecting rod is supported by the upper surface of the intercepting plate.

[0014] Preferably, a protective net is further provided on the outer surface of the side wall of the purification filter element, and the protective net is located on the outer side of the filter layer.

[0015] The beneficial effects of the present invention are as follows: The waste oil and waste emulsion processing and regeneration device described in the present invention adjusts the tightness of the filter cloth by controlling the first telescopic device. When the impurities enriched on the surface of the filter cloth are too much and affect the passability of the waste liquid, the first telescopic device drives the movable ring to move upward, so that the tight state of the filter cloth is released. Then, by starting the mechanical vibration device connected to the fixed plate installed on the top of the filter cloth, the solid particle impurities adhered to the surface of the filter cloth are caused to separate due to the vibration, thereby improving the cleaning efficiency of the filter cloth, allowing the waste liquid purification equipment to be quickly put into the purification treatment of the waste liquid, reducing the time and energy consumed by cleaning, and improving the regeneration and purification treatment efficiency of the waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 It is a perspective view of the present invention; Figure 2 It is a partial cross-sectional view of the present invention in the front view direction; Figure 3 It is a partial cross-sectional view of the present invention in the side view direction; Figure 4 It is a three-dimensional diagram of the purification filter element of the present invention; Figure 5 This is a cross-sectional view of the purification filter element in the present invention Figure 6 yes Figure 5 A partial enlarged view of point A in the middle; Figure 7 yes Figure 5 A partial enlarged view of point B in the middle; Figure 8 It is a partial cross-sectional schematic diagram of the filter cloth in the present invention; Figure 9 is a perspective view of the cleaning ring of the present invention; Figure 10 It is a three-dimensional diagram of the interception plate in the present invention.

[0018] In the figure: waste liquid purification equipment 1, purification tank 11, purification filter element 12, fixed plate 121, mounting plate 122, separation area 123, mounting groove 124, intercepting plate 125, support rod 126, cleaning ring 127, connecting rod 128, liquid inlet pipe 13, liquid outlet pipe 14, filter layer 15, fixed net 151, filter cloth 152, fixed ring 153, movable ring 154, filter area 155, deformation area 156, connecting part 157, purification gap 158, impact hole 159, adsorption layer 16, drainage area 17, liquid outlet 171, protective net 18, drainage pipe 19, mechanical vibration device 2, first telescopic device 3, second telescopic device 4. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings shown in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1:

[0021] As shown in the accompanying drawings Figures 1-10 As shown, the present application proposes a waste oil and waste emulsion treatment and regeneration device, including a waste liquid purification device 1, a purification tank 11 is provided inside the waste liquid purification device 1, and a purification filter element 12 is provided inside the purification tank 11. The purification tank 11 is connected to the outside through a liquid inlet pipe 13, a liquid outlet pipe 14 and a drainage pipe 19. The purification filter element 12 is divided into a filter layer 15, an adsorption layer 16 and a central drainage area 17 in the direction from the outside to the central axis. The liquid outlet 171 at the bottom of the drainage area 17 is connected to the liquid outlet pipe 14 and communicates with the outside; A pump device corresponding to the liquid inlet pipe 13, the liquid outlet pipe 14 and the discharge pipe 19 is provided inside the waste liquid purification equipment. The type selection of the pump device, as well as the arrangement, installation, wiring and control method of the above-mentioned equipment inside the waste liquid purification equipment are all conventional choices of pump power equipment inside the waste oil purification equipment in the prior art, and will not be described in detail here; the outlet pipe 14 interface is located at the bottom of the waste liquid purification equipment 1, at a position below the purification tank 11, and is upwardly connected to the interior of the drainage area 17; the liquid inlet pipe 13 interface is located at the bottom of the waste liquid purification equipment, and the end of the liquid inlet pipe 13 extends upward inside the waste liquid purification equipment and is connected to the purification tank 1 1, the corresponding pump equipment provides power to pump the external waste liquid into the bottom of the purification tank 11; the interface of the discharge pipe 19 is located near the bottom of the purification tank 11 and is connected to the bottom of the purification tank 11. The corresponding pump equipment provides power to pump out the residual waste oil liquid, which is used to discharge the residual waste liquid enriched with oily impurities at the end of the waste liquid purification process, so as to avoid the waste liquid with too high oily impurity content causing the purification filter 12 to be overloaded or even blocked during the continued purification process; the above-mentioned pump equipment and corresponding motors, cooling fans and other power-related equipment are integrated into the bottom position of the waste liquid purification equipment to facilitate maintenance and renovation; The adsorption layer 16 is filled with activated carbon adsorption material to adsorb and purify the waste liquid passing through the filter layer 15. The adsorption layer 16 is a double-layered annular mesh structure with a closed bottom. The activated carbon adsorption material is filled into the annular area formed by the adsorption layer 16. The filter layer 15 includes an annular fixed net 151 and a filter cloth 152 wrapped around the outside of the fixed net 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 at the top of the purification filter element 12, and the mechanical vibration device 2 is controlled by an external controller; there are multiple implementation plans for the specific structure of the mechanical vibration device 2. The present application provides a possible technical solution, in which an elastically connected annular plate can be provided inside the fixed plate 121, and 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, and the fixed rod transmits the elastic vibration to the fixed ring 153 and the connected filter cloth 152, thereby achieving vibration and impurity removal of the filter cloth 152; The movable 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 first telescopic device 3 can be an existing micro electric telescopic rod and controlled by an external controller.

[0022] Specific work flow: For waste lubricating oil, emulsion and other waste liquids generated during machining, in order to reduce resource waste and comply with the theme of energy conservation and environmental protection, these waste liquids can be purified and impurities can be separated so that they can be recycled and reused; In this process, a large amount of fine impurities mixed into the waste liquid when it plays a role in the machining process need to be filtered and separated. Therefore, after the waste liquid is collected and preliminarily filtered to separate the large particles of impurities, the waste liquid is sent to the inside of the purification tank 11 through the liquid inlet pipe 13. The purification tank 11 is inside the body of the waste liquid purification equipment 1, and is a cylindrical area. A purification filter element 12 is provided in the middle position. The pump equipment connected to the liquid outlet pipe 14 is started, and a negative pressure area is formed in the discharge area 17 in the middle area of ​​the purification filter element 12, which prompts the waste liquid in the outer purification tank 11 to flow toward the direction close to the discharge area 17. In this process, the waste liquid penetrates the filter layer 15 and the adsorption layer 16 provided on the outside of the purification filter element 12 and is filtered and purified. The filter cloth 152 provided on the filter layer 15 filters and separates solid particulate impurities in the waste liquid, while the activated carbon adsorption material located in the adsorption layer 16 can adsorb and purify the waste liquid that permeates and flows in the gap area between the activated carbon adsorption particles, and separate out the fine impurities therein. The loose and porous structure of the activated carbon can, on the one hand, adsorb particulate impurities in the waste liquid, and on the other hand, adsorb some organic pollutants in the waste liquid, such as surfactant degradation products and microbial metabolites, through van der Waals forces, thereby reducing the content of organic pollutants in the waste liquid, improving the purity of the purified liquid, and enhancing the purification effect of the waste liquid. Finally, the purified waste liquid permeates into the middle drainage area 17, flows out from the liquid outlet 171 at the bottom, and is introduced into the outside world by the connected liquid outlet pipe 14, entering the next treatment process, and finally achieving purification and regeneration of the waste liquid. When the purification process is about to end, some waste liquid still remains in the area outside the purification filter element 12 inside the purification tank 11. This part of the waste liquid is enriched with the solid oil impurities filtered and separated by the purification filter element 12. This part of the waste liquid can be pumped to the outside for treatment through the drain pipe 19 connected to the bottom of the purification tank 11. In this way, the separated oil impurities can be taken away, reducing the situation where too much oil impurities adhere to the outside of the purification filter element 12 and affect the permeability, thereby ensuring the normal operation of the purification filter element 12; After working for a period of time, a large amount of particulate impurities accumulate on the outer surface of the filter cloth 152 located in the filter layer 15 and adhere to the surface of the filter cloth 152. Compared with the prior art, in order to avoid damaging the filter cloth 152 and improve the cleaning effect, it is necessary to open the device and remove the filter cloth 152 for cleaning. In this application, the tightness of the filter cloth 152 can be adjusted by controlling the first telescopic device 3. When filtering the waste liquid normally, the telescopic end of the first telescopic device 3 is controlled to drive the moving ring 154 downward, so that the filter cloth 152 of the filter layer 15 is in a tight state, and the infiltrated waste liquid can be filtered and purified normally. When it is found that too many impurities have accumulated on the surface of the filter cloth 152 and affect the passability of the waste liquid after working for a period of time, the filter cloth 152 needs to be cleaned; specifically, the first telescopic device 3 can be controlled to drive the movable ring 154 to move upward, so that the tight state of the filter cloth 152 is released and the filter cloth 152 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 started. After the mechanical vibration device 2 is started, 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 and deformation margin, thereby preventing the filter cloth 152 from being pulled and damaged due to vibration; As the filter cloth 152 vibrates, the solid particles adhering to the surface of the filter cloth 152 are dislodged due to the vibration, and backwash purification can begin. Specifically, the original liquid outlet pipe 14 can be connected to the cleaning liquid supply system, and the corresponding pump equipment can be controlled to start in reverse, so that the cleaning liquid is reversely fed into the drainage area 17, and penetrates the purification filter element 12 from the inside to the outside. The cleaning liquid that has penetrated to the outside of the purification tank 11 is then pumped out to the outside through the original liquid inlet pipe 13. In this way, the cleaning liquid is caused to reversely penetrate and flow outward inside the drainage area 17, impacting the outer filter layer 15 and the 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 liquid, thereby improving the cleaning efficiency of the filter cloth 152. After the cleaning liquid is extracted and the self-cleaning treatment of the filter layer 15 is completed, the waste liquid purification equipment 1 can be quickly put into the purification treatment of the waste liquid, reducing the time and energy consumed in cleaning and improving the regeneration and purification treatment efficiency of the waste liquid.

[0023] Example 2:

[0024] On the basis of Example 1, the filter cloth 152 includes a filter area 155 and a deformation area 156. The filter area 155 is made of non-elastic material, and the deformation area 156 is made of elastic material. The filter area 155 and the deformation area 156 are staggered along the vertical direction; the two filter cloths 152 corresponding to the filter area 155 and the deformation area 156 are fixed to each other, and can be sewn together to achieve fixation, or connected to each other by fixing parts; in this way, after long-term use, if part of the filter area 155 or the deformation area 156 is damaged, the new filter cloth 152 corresponding to the filter area 155 or the deformation area 156 can be replaced by removing the suture line or the fixing part, so as to achieve reuse and increase the service life.

[0025] Specific workflow: Based on the specific workflow in Example 1, in order to further reduce the damage to the filter cloth 152 caused by external tension and vibration impact and extend the service life of the filter cloth 152, the present application provides that the filter cloth 152 can be divided into multiple groups of filtering areas 155 and deformation areas 156, and the filtering areas 155 and the deformation areas 156 are staggered along the vertical direction; the filtering areas 155 and the deformation areas 156 are both annular, and the vertical length of the filtering area 155 is greater than the vertical length of the deformation area 156. For example, the vertical length of the filtering area 155 can be 2-3 times the vertical length of the deformation area 156. In this way, the filtering area 155 is mainly responsible for filtering the waste liquid; Furthermore, because the filter cloth 152 of elastic material is used in the deformation zone 156 and the filter cloth 152 of non-elastic material is used in the filtration zone 155, when the filter cloth 152 tends to deform and stretch due to external forces, the deformation zone 156 has a large deformation margin, and thus can buffer the force acting on the filter cloth 152 through deformation, thereby reducing the possibility of the filter cloth 152 being pulled and damaged. In addition, the elastic deformation zone 156 can better transmit the external vibration to the adjacent filter zone 155, so that the vibration is transmitted more evenly on the entire filter cloth 152, so that the particulate impurities adhered to the surface of the filter zone 155 are separated more fully; especially when the particulate impurities adhered to the outer surface of the filter cloth 152 are enriched and adhere to each other to form layered dirt, the external force causes the filter cloth 152 to be pulled, and causes the length of the continuously distributed deformation zone 156 on the filter cloth 152 to change significantly, relative to the situation where the deformation amplitude of the filter zone 155 is smaller, this will cause the layered dirt in the gap area between the filter cloths 152, and the layered dirt is subjected to a large difference in force between the filter zone 155 and the deformation zone 156. The difference in deformation amplitude causes relative movement between the filter cloth 152 and the layered dirt, causing the layered dirt to be peeled off from the surface of the filter cloth 152, further improving the cleaning efficiency of the filter cloth 152 for impurities adhered to the surface.

[0026] Example 3:

[0027] Based on the second embodiment, adjacent deformation zones 156 are connected by connecting portions 157, which pass through the middle filter zone 155. The connecting portions 157 are made of a non-elastic material, specifically a cloth rope or strip. The connecting portions 157 can be in sliding contact with the inner surface of the filter zone 155, and can also be provided with a plurality of suture points to facilitate the transmission of vibration. The ends of the connecting portions 157 are fixedly connected and sutured to the adjacent deformation zones 156. The deformation zone 156 has a double-layer structure, and a purification gap 158 is formed between the double-layer structures. In the double-layer structure of the deformation zone 156, the part close to the drainage zone 17 is the inner layer, and the part away from the drainage zone 17 is the outer layer. The mesh number of the inner layer is smaller than the mesh number of the outer layer, and the filter holes of the inner layer are larger than the filter holes of the outer layer. In this way, the resistance encountered by the waste liquid when penetrating the inner layer is smaller than the resistance encountered when penetrating the outer layer, thereby reducing the situation where particulate impurities are left in the purification gap 158 due to the obstruction of the outer layer when the waste liquid passes through the purification gap 158, and adhere to each other, affecting the passability.

[0028] Specific working process: Based on the specific working process in Example 2, as the first telescopic device 3 at the bottom is activated, the telescopic end drives the fixed ring 153 to move back and forth vertically, thereby causing the filter cloth 152 to repeatedly switch between a taut state and a relaxed state, causing the filter cloth 152 to deform; in particular, for the deformation zone 156 on the filter cloth 152, under the action of external force, the deformation zone 156 is caused to continuously stretch and then recover, and the vertically distributed deformation zones 156 are connected by connecting parts 157. In this way, the external force can be better transmitted along the connecting parts 157 to the position of the filter cloth 152 away from the telescopic device or the mechanical vibration device 2, so that the external force deformation effect on the vertically distributed deformation zone 156 is more uniform; In the process of the connection part 157 transmitting the external force, the elastic vibration is also transmitted to the inner surface of the middle filter area 155, so that the filter area 155 is subjected to the vibration transmitted by the connection part 157 and vibrates synchronously, prompting the particulate impurities adhering to the outer surface of the filter area 155 to fall off faster.

[0029] Furthermore, impact holes 159 are evenly arranged on the fixed net 151 at the position facing the deformation zone 156. The impact holes 159 are conical structures. The impact holes 159 can be realized by providing a conical tube. During the backwash cleaning process, the cleaning liquid passing through the impact holes 159 concentrates on the deformation zone 156, causing the deformation zone 156 to vibrate due to the impact. Furthermore, because the deformation zone 156 has a double-layer structure and the filter pores in the inner layer are relatively large, during the backwashing process of the filter cloth 152, the cleaning liquid released outward from the impact holes 159 first contacts the inner layer of the deformation zone 156 and accelerates through the inner layer to enter the purification gap 158. The cleaning liquid 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, thereby increasing the lateral deformation amplitude of the deformation portion, and further promoting the removal of layered dirt adhered to the outer surface of the filter cloth 152. As the first telescopic device 3 pulls the filter cloth 152 downward, the filter cloth 152 is tightened and the deformation area 156 is tightened and tends to be flat, so that the cleaning liquid accumulated in the purification gap 158 is pressurized and accelerated to penetrate outward, thereby strengthening the penetration and cleaning effect of the filter cloth 152 in the surrounding area, and further improving the cleaning effect of the cleaning liquid filter cloth 152.

[0030] Example 4:

[0031] On the basis of the third embodiment, the number of filter layers 15 of 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 area 123; the mounting plate 122 is provided with a mounting groove 124 at a position corresponding to the bottom of the filter layer 15, and the mounting groove 124 is connected to the bottom of the separation area 123; an interception plate 125 is slidably provided on the inner wall of the mounting groove 124, and the upper surface of the interception plate 125 abuts against the bottom of the movable ring 154 and closes the bottom opening of the separation area 123; the bottom of the interception 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 , and the support rod 126 slides through the intercepting plate 125 and is fixedly connected to the mounting plate 122 .

[0032] Specific workflow: Based on the specific workflow in Example 3, the gap areas between adjacent filter layers 15, as well as the area between the filter layer 15 and the adsorption layer 16, are all separation areas 123. In order to prevent solid impurities separated from the waste liquid from being blocked and accumulated in the separation areas 123 during the waste liquid purification process, thereby affecting the permeability of the entire purification filter element 12, a mounting groove 124 is provided on the bottom mounting plate 122, which communicates with each upper separation area 123. When filtering waste liquid normally, the second telescopic device 4 is controlled to drive the intercepting plate 125 to move upward, supporting the upper fixed net 151, adsorption layer 16 and other structures, while sealing the bottom of the separation area 123 in the gap between each layer, so that the waste liquid can only pass through the filter layer 15 to be filtered and purified; when purification treatment is required, the second telescopic device 4 is controlled to drive the intercepting plate 125 to move downward, so that the bottom of the separation area 123 can be connected to the outside world, so that the cleaning liquid has two flow paths after entering the separation area 123. A part of the cleaning liquid flows horizontally to flush and penetrate the filter layer 15 and the adsorption layer 16, while taking away the impurities adhered therein, and the other part of the cleaning liquid flows downward to flush away the solid impurities accumulated inside the separation area 123, and take them out to the outside world from the gap area of ​​the mounting groove 124 opened at the bottom.

[0033] Embodiment 5:

[0034] On the basis of the fourth embodiment, a cleaning ring 127 is provided in the separation zone 123 near the outer surface of the filter cloth 152. The cleaning rings 127 are evenly distributed along the vertical direction and are connected to the fixing plate 121 and the mounting plate 122 respectively through vertical connecting rods 128. The cross section of the cleaning ring 127 is triangular, and the tapered end of the cleaning ring 127 points to the outer surface of the filter cloth 152. 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 intercepting plate 125 .

[0035] Specific workflow: on the basis of the specific workflow in embodiment four, with the start of the mechanical vibration device 2, the connecting rod 128 and the cleaning ring 127 are vertically vibrated, and with the reverse impact of the cleaning liquid, the filter cloth 152 is deformed and protrudes away from the liquid inlet area, at this time the outer surface of the filter cloth 152 is in contact with the tapered end of the cleaning ring 127, and with the vibration of the cleaning ring 127, the fixed particle impurities adhering to the outer surface of the filter cloth 152 can be further cleaned.

[0036] Further, the outer surface of the purification filter element 12 is also provided with a protective net 18, which is located outside the filter layer 15; the mesh structure of the protective net 18 protects the relatively fragile structures such as the filter layer 15 and the adsorption layer 16 inside the purification filter element 12 during transportation and handling, avoiding damage to the internal structure of the purification filter element 12 caused by external force.

[0037] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application 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 a purification tank (11) is provided inside the waste liquid purification device (1), a purification filter element (12) is provided inside the purification tank (11), and the purification tank (11) is communicated with the outside through a liquid inlet pipe (13), a liquid outlet pipe (14) and a liquid discharge pipe (19), and characterized in that: The purification filter element (12) is divided into a filter layer (15), an adsorption layer (16) and a central drainage area (17) in sequence from the outside to the central axis. The liquid outlet (171) at the bottom of the drainage area (17) is connected to the liquid outlet pipe (14) and communicates with the outside. The adsorption layer (16) is filled with activated carbon adsorption material to perform adsorption and purification treatment on the waste liquid passing through the filter layer (15); The filter layer (15) comprises an annular fixed net (151) and a filter cloth (152) wrapped around the outside of the fixed net (151); a fixed ring (153) is provided on the top of the filter cloth (152); the fixed ring (153) is connected to a mechanical vibration device (2) inside a fixed plate (121) at the top of the purification filter element (12); the mechanical vibration device (2) is controlled by an external controller; and a movable ring (154) at the bottom of the filter cloth (152) is connected to the output end of a first telescopic device (3) provided on a mounting plate (122) at the bottom of the purification filter element (12).

2. The waste oil and waste emulsion treatment and regeneration device according to claim 1, characterized in that: The filter cloth (152) comprises a filter area (155) and a deformation area (156). The filter area (155) is made of a non-elastic material, and the deformation area (156) is made of an elastic material. The filter area (155) and the deformation area (156) are staggered along the vertical direction.

3. The waste oil and waste emulsion treatment and regeneration device according to claim 2, characterized in that: Adjacent deformation zones (156) are connected via connecting portions (157), and the connecting portions (157) extend through the surface of the filter zone (155) between the adjacent deformation zones (156).

4. The waste oil and waste emulsion treatment and regeneration device according to claim 3, characterized in that: The deformation zone (156) is a double-layer structure, and a purification gap (158) is formed between the double-layer structures. In the double-layer structure of the deformation zone (156), the mesh number of the part close to the drainage zone (17) is smaller than the mesh number of the part away from the drainage zone (17).

5. The waste oil and waste emulsion treatment and regeneration device according to claim 4, characterized in that: Impact holes (159) are evenly arranged on the fixed net (151) at positions facing the deformation zone (156), and the impact holes (159) are of a conical structure.

6. The waste oil and waste emulsion treatment and regeneration device according to claim 5, characterized in that: The number of the filter layers (15) of 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 a separation area (123); A mounting groove (124) is provided at a portion of the mounting plate (122) corresponding to the bottom of the filter layer (15), and the mounting groove (124) is communicated with the bottom of the separation zone (123); an interception plate (125) is slidably provided on the inner wall of the mounting groove (124), and the upper surface of the interception 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 interception 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), and the support rod (126) slides through the intercepting plate (125) and is fixedly connected to the mounting plate (122).

7. The waste oil and waste emulsion treatment and regeneration device according to claim 6, characterized in that: A cleaning ring (127) is provided at a position close to the outer surface of the filter cloth (152) in the separation zone (123). The cleaning rings (127) are evenly distributed along the vertical direction and are respectively connected to the fixing plate (121) and the mounting plate (122) through vertical connecting rods (128). The cross section of the cleaning ring (127) is triangular, and the conical end of the cleaning ring (127) points to the outer surface of the filter cloth (152).

8. The waste oil and waste emulsion treatment and regeneration device according to claim 7, 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 supported by the upper surface of the intercepting plate (125).

9. The waste oil and waste emulsion treatment and regeneration device according to claim 8, 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 outside the filter layer (15).

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