Oil-water separator for emulsifier wastewater treatment

By designing a composite oil-water separator, using the combination of reaction module and separation module and bubble generator, multi-stage separation and efficient filtration of emulsifier wastewater are achieved, and the oil-water separation efficiency and separation membranes are easily blocked in the prior art Problem, significantly improving processing efficiency and continuity.

CN119240855AInactive Publication Date: 2025-01-03SUICHANG MUYUAN BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411336639.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-01-03
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, when treating emulsifier wastewater, the oil-water separation efficiency is low and the separation membrane is prone to clogging, resulting in poor treatment efficiency and continuity.

Method used

A composite oil-water separator is designed, including a reaction module and a separation module. Through step-by-step separation treatment and bubble generator, the emulsifier wastewater is efficiently filtered and separated, and the combination of reaction cylinder, lifting element and separation chamber is realized. Multi-stage separation of wastewater and further improve separation efficiency through ultrafiltration membrane.

Benefits of technology

It significantly improves the separation efficiency of oil in the emulsifier wastewater, extends the service life of the separation membrane, ensures the continuity of the treatment process and the thoroughness of the separation effect, and improves the wastewater treatment efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of emulsifier wastewater treatment, in particular to an oil-water separator for emulsifier wastewater treatment, which comprises a frame and a reaction module arranged on the frame, and the reaction module is provided with a reaction cylinder capable of bearing wastewater and a lifting element capable of lifting wastewater; the separation module is coaxially and fixedly arranged outside the reaction module in a vertical state through a first mounting frame and is communicated with a top outlet of the reaction cylinder; the separation module is provided with a separation bin, and the separation bin is provided with a first separation cavity and a second separation cavity; when wastewater enters different chambers, different separation effects can be presented; a vertical driver capable of longitudinally pushing and lifting the reaction cylinder is also arranged at the bottom of the rack and is used for driving the reaction cylinder to be communicated with the first separation cavity and the second separation cavity respectively; the device can perform targeted separation treatment on wastewater according to different stages of wastewater treatment, and is good in filtering effect and high in efficiency.
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Description

Technical Field

[0001] The invention relates to the technical field of emulsifier wastewater treatment, in particular to an oil-water separator used for emulsifier wastewater treatment. Background Art

[0002] Emulsifier wastewater is a common type of wastewater in industrial production, and is widely found in the petroleum, chemical, metallurgical, food processing and other industries. This type of wastewater usually contains a large amount of emulsified oil, suspended solids and other organic pollutants, and has a high chemical oxygen demand and biochemical oxygen demand. The treatment of emulsifier wastewater is difficult, especially the emulsified oil, which forms a stable emulsion system with water, making it difficult for traditional physical and chemical treatment methods to effectively separate oil and water, which directly affects the efficiency of wastewater treatment and the quality of treated water.

[0003] In the prior art, commonly used oil-water separation methods include gravity separation, flotation, membrane separation, and chemical demulsification. These methods have their own advantages and disadvantages, but they have certain limitations when treating emulsifier wastewater. For example, when using flotation to separate oil and water, the separation efficiency is easily limited, because the flotation method relies on the combination of fine bubbles and oil droplets to separate oil and water. However, for the tiny oil droplets in the emulsifier wastewater, the adhesion effect of the bubbles is limited, resulting in low separation efficiency, especially when treating high-concentration emulsifier wastewater. The effect is particularly unsatisfactory; and when separating oil and water by membrane separation, the membrane surface is easily covered with grease and other pollutants, resulting in premature clogging of the membrane pores, which significantly reduces the separation efficiency and service life; the continuity of separation cannot be guaranteed. Summary of the invention

[0004] In view of the above problems, an oil-water separator for emulsifier wastewater treatment is provided. By proposing a composite oil-water separation equipment that can not only efficiently filter larger oil, water and suspended particles but also further precisely filter oil and water, the technical problems of poor filtration efficiency and easy clogging caused by the inability to distinguish and separate in existing equipment when treating emulsifier wastewater are solved.

[0005] In order to solve the problems of the prior art, the present invention provides an oil-water separator for emulsifier wastewater treatment, comprising a frame, a reaction module arranged on the frame, the reaction module is provided with a reaction cylinder capable of carrying wastewater and a lifting element capable of pushing up the wastewater; the separation module is coaxially fixed in a vertical state outside the reaction module through a first mounting frame and is connected with the top outlet of the reaction cylinder; the separation module is provided with a separation bin and the separation bin has a first separation chamber and a second separation chamber; when the wastewater enters different chambers, different separation effects can be presented; the bottom of the frame is also provided with a vertical driver capable of longitudinally pushing up the reaction cylinder, so as to drive the reaction cylinder to be connected with the first separation chamber and the second separation chamber respectively.

[0006] Preferably, the reaction module also includes a bubble generator capable of prompting the wastewater in the reaction cylinder to react quickly.

[0007] Preferably, the lifting element includes a push plate capable of axially sliding in the reaction tube, and a first sealing ring is embedded on the edge of the push plate; the push plate is driven by a vertical reciprocating driver arranged on the lower surface.

[0008] Preferably, the side wall of the reaction cylinder is also vertically fixed with two oppositely arranged slide rails; the two slide rails are respectively slidably matched with slide grooves vertically arranged on the frame; the vertical drive is vertically fixed on the lower surface of the frame and the drive end passes through the frame and is fixedly connected to the bottom of the reaction cylinder.

[0009] Preferably, the separation chamber is a hollow chamber body with an open top; its internal space is divided into a first separation chamber and a second separation chamber by a partition; a sealing cover is detachably provided at the opening on the top of the chamber body, and openings for the reaction tube to pass through are respectively provided in the middle of the chamber body and the partition; a second sealing ring is embedded in the openings of the partition and the reaction tube.

[0010] Preferably, the separation module also includes a first separation module and a second separation module which are respectively connected to the first discharge port and the second discharge port opened at the lower end of the separation bin; the first separation module and the second separation module are relatively arranged on both sides below the separation bin; and a lead-out element capable of connecting the discharge ports of the first separation module and the second separation module is also arranged below the first separation module and the second separation module.

[0011] Preferably, the first separation module comprises a first main pipe, a second main pipe, and a first pipeline, a second pipeline and a third pipeline arranged in series between the first main pipe and the second main pipe; and separation elements are respectively provided in the middle of the first pipeline, the second pipeline and the third pipeline; the separation element is provided with a separation membrane plate that can radially move away from or approach the pipeline, so as to filter the wastewater passing through the pipeline.

[0012] Preferably, the separation element further comprises a sliding frame capable of installing the separation membrane plate, and the sliding frame is provided with at least two installation grooves for installing the separation membrane plate; therefore, the sliding frame is horizontally arranged in the middle of the first pipeline through the adjustment frame.

[0013] Preferably, the outlet element is an arc-shaped tube and a liquid discharge tube connected to the arc-shaped tube is radially fixedly arranged in the middle of the arc-shaped tube.

[0014] Preferably, the separation membrane plate is an ultrafiltration membrane.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention realizes the effect of how to perform step-by-step separation treatment on emulsifier wastewater through the combination of a reaction module, a first separation module and a second separation module. The wastewater is first pretreated through the reaction module so that larger oil droplets and suspended particles in the wastewater can be effectively reacted, gathered and exported. The first separation module and the second separation module are used to further filter the pretreated wastewater so that the oil and liquid are completely separated, thereby solving the technical problems that the separation membrane of traditional equipment is easily blocked during membrane separation and the oil and liquid separation is not complete when the oil and liquid are separated by flotation. The present invention can not only filter out larger oil and liquid but also further separate the wastewater through step-by-step separation treatment, so that the oil and liquid in the wastewater can be effectively and efficiently separated. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of an oil-water separator for emulsifier wastewater treatment.

[0018] Figure 2 Side view of an oil-water separator used in emulsifier wastewater treatment Figure 1 .

[0019] Figure 3 Side view of an oil-water separator used in emulsifier wastewater treatment Figure 2 .

[0020] Figure 4 yes Figure 3 Section view at AA.

[0021] Figure 5 yes Figure 4 A partial enlarged view of point B.

[0022] Figure 6 A top view of an oil-water separator used for emulsifier wastewater treatment.

[0023] Figure 7 yes Figure 6 Stereoscopic cross-sectional view of the section at CC.

[0024] Figure 8 yes Figure 7 A partial enlarged view of point D.

[0025] Fig. 9 It is a three-dimensional structure of a part of the frame and vertical drive of an oil-water separator for emulsifier wastewater treatment. Figure 1 .

[0026] Fig.10 It is a three-dimensional structure of a part of the frame and vertical drive of an oil-water separator for emulsifier wastewater treatment. Figure 2 .

[0027] The numbers in the figure are:

[0028] 1. Frame;

[0029] 2. Reaction module; 21. Reaction cylinder; 22. Lifting element; 221. Push-up plate; 222. First sealing ring; 223. Vertical reciprocating driver; 2231. Screw; 2232. Drive motor; 2233. Guide rod; 23. Bubble generator; 24. Slideway; 25. Slide rail;

[0030] 3. Separation module; 31. First mounting frame; 32. Separation chamber; 321. Partition plate; 322. Second sealing ring; 323. Sealing cover; 324. Export chamber; 33. First separation module; 331. First main pipe; 332. Second main pipe; 333. First pipeline; 334. Second pipeline; 335. Third pipeline; 336. Separation membrane plate; 337. Sliding frame; 338. Mounting groove; 339. Adjustment frame; 34. Second separation module; 35. Export element; 351. Arc pipe; 352. Drain pipe;

[0031] 4. Vertical drive. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] See also Figures 1 to 10 As shown: an oil-water separator for emulsifier wastewater treatment, comprising a frame 1, a reaction module 2 arranged on the frame 1, the reaction module 2 is provided with a reaction cylinder 21 capable of carrying wastewater and a lifting element 22 capable of pushing up the wastewater; a separation module 3 is coaxially fixedly arranged outside the reaction module 2 in a vertical state through a first mounting frame 31 and is connected with the top outlet of the reaction cylinder 21; the separation module 3 is provided with a separation chamber 32 and the separation chamber 32 has a first separation chamber and a second separation chamber; when the wastewater enters different chambers, different separation effects can be presented; a vertical driver 4 capable of longitudinally pushing up the reaction cylinder 21 is also provided at the bottom of the frame 1, so as to drive the reaction cylinder 21 to be connected with the first separation chamber and the second separation chamber respectively.

[0034] The reaction cylinder 21 is a hollow cylindrical cylinder with an open top;

[0035] When the emulsified wastewater needs to be treated, the wastewater is first introduced into the reaction cylinder 21 and an appropriate amount of coagulant is added; the coagulant causes the emulsified oil in the wastewater to aggregate into larger oil droplets and flocculates the suspended solids to facilitate subsequent separation; after a period of reaction, the emulsified oil droplets and the condensed suspended solids will gradually float to the surface of the wastewater; at this time, the vertical drive 4 is started to lift the reaction cylinder 21 longitudinally to a height connected to the first separation chamber; then, the lifting element 22 is started to make the wastewater in the reaction cylinder 21 overflow to the reaction cylinder 2 together with the oil droplets and suspended solids on the surface of the wastewater during the lifting process. 1, and the preliminary separation of oil and suspended solids in the wastewater is completed; then, the vertical drive 4 is started again to lift the reaction cylinder 21 to a position connected with the second separation chamber; at this time, the lifting element 22 is started again, and its force is used to press the wastewater into the second separation chamber to achieve further treatment of the wastewater, thereby achieving the effect of secondary separation; through the above process, the present invention not only realizes the efficient preliminary separation of oil and suspended solids in emulsifier wastewater, but also further improves the effect of wastewater treatment through secondary separation, ensures the continuity of the treatment process and the thoroughness of the separation effect, and significantly improves the wastewater treatment efficiency.

[0036] See also Figure 7 As shown: the reaction module 2 also includes a bubble generator 23 which can promote rapid reaction of the wastewater in the reaction tube 21 .

[0037] The bubble generator 23 is horizontally fixedly disposed at the lifting end of the lifting element 22;

[0038] When it is necessary to accelerate the treatment reaction of the wastewater in the reaction tube 21, the bubble generator 23 provided in the reaction module 2 is started to operate; the bubble generator 23 has a plurality of working states, and by adjusting different states, the coagulant and the wastewater can be quickly mixed when the coagulant is added to the wastewater; after the coagulant is evenly distributed, the bubble generator 23 generates a large number of fine bubbles, so that the bubbles are fully in contact with the emulsified oil droplets and suspended solids in the wastewater; the bubbles are used to promote the aggregation of oil droplets through adhesion, and help the suspended solids to float quickly to the surface of the wastewater, thereby significantly accelerating the reaction speed and separation efficiency of the wastewater; under the action of the bubbles, the pollutants in the wastewater can be separated from the water body more quickly, further improving the effect of oil-water separation; through the various working states of the bubble generator 23, not only the rapid mixing of the coagulant and the wastewater is achieved, the uniformity of the preliminary treatment is improved, but also the reaction speed of the wastewater treatment is greatly improved, and the emulsified oil droplets and the suspended solids are separated more quickly and effectively, thereby significantly improving the overall treatment efficiency and separation effect, ensuring that the wastewater treatment process is more efficient and stable;

[0039] The specific working state of the bubble generator 23 is as follows: a state that promotes rapid mixing between the coagulant and the wastewater: the bubble generator 23 is adjusted to a state of generating high-speed, high-density micro-bubbles; these bubbles form a turbulent effect in the wastewater, enhancing the contact area and mixing intensity between the coagulant and the wastewater, thereby accelerating the uniform distribution of the coagulant in the wastewater; in this state, the micro-bubbles promote the rapid dispersion of the coagulant and its full contact with the wastewater through the stirring effect, ensuring a rapid reaction between the coagulant and the pollutants in the wastewater, laying the foundation for the subsequent oil-water separation process;

[0040] The state in which oil, water and floccules are prompted to float to the surface of the wastewater: the bubble generator 23 is adjusted to a state in which low-speed, large-diameter bubbles are generated; in this state, larger bubbles rise slowly in the wastewater and are easily attached to oil droplets and floccules, generating buoyancy, causing these pollutants to float from the wastewater to the surface; in this state, large-diameter bubbles effectively push oil droplets and floccules to the surface of the wastewater, promote their separation from the water body, and achieve preliminary oil-water separation and solid-liquid separation effects; by precisely adjusting the working state of the bubble generator 23, the equipment can respectively achieve rapid and uniform mixing of the coagulant and the wastewater, and the effect of prompting oil droplets and floccules to float efficiently to the surface of the wastewater, thereby significantly improving the overall efficiency and separation effect of emulsifier wastewater treatment.

[0041] See also Figure 4 and Figure 7 As shown, the lifting element 22 includes a lifting plate 221 that can slide axially in the reaction tube 21, and a first sealing ring 222 is embedded on the edge of the lifting plate 221; the lifting plate 221 is driven by a vertical reciprocating driver 223 arranged on the lower surface.

[0042] When it is necessary to lift the wastewater in the reaction tube 21, start the lifting plate 221 in the lifting element 22; the lifting plate 221 can slide axially in the reaction tube 21, and can be lifted or lowered by the drive of the vertical reciprocating driver 223; since the edge of the lifting plate 221 is embedded with a first sealing ring 222, the sealing performance between the lifting plate 221 and the inner wall of the reaction tube 21 is ensured during the movement, thereby preventing the wastewater from leaking or flowing back during the lifting process; through the smooth sliding of the lifting plate 221 and the cooperation of the first sealing ring 222, the wastewater can be evenly and effectively lifted to the separation module 3, thereby further completing the separation of oil, water and suspended solids;

[0043] The vertical reciprocating driver 223 specifically consists of a driving screw 2231 vertically arranged on the lower surface of the push-up plate 221 and a driving motor 2232 threadedly connected to the screw 2231 for driving the screw 2231 to move; a guide rod is also vertically arranged on the lower surface of the push-up plate 221 for guiding the axial sliding of the push-up plate 221; the vertical reciprocating driver 223 is not limited to this, and its purpose is to drive the push-up plate 221 to slide longitudinally.

[0044] See also Figure 7 and Fig. 9 As shown: the side wall of the reaction tube 21 is also vertically fixed with two oppositely arranged slide rails 25; the two slide rails 25 are respectively slidably matched with the slide grooves 24 vertically arranged on the frame 1; the vertical driver 4 is vertically fixed on the lower surface of the frame 1 and the driving end passes through the frame 1 and is fixedly connected to the bottom of the reaction tube 21.

[0045] When the height or position of the reaction tube 21 needs to be adjusted, it can be achieved by starting the vertical driver 4; and the two slide rails 25 arranged relatively on both sides of the reaction tube 21 slide with the slide grooves 24 respectively vertically arranged on the frame 1; ensuring the stable movement of the reaction tube 21 when adjusted in the vertical direction; and when the vertical reciprocating driver 223 is driven to drive the reaction tube 21 to be lifted longitudinally, the reaction tube 21 in the driven state can be smoothly raised and lowered to effectively connect with different separation modules 3, thereby completing the multi-stage treatment of wastewater.

[0046] See also Fig. 9 and Fig.10 As shown: the separation chamber 32 is a hollow chamber body with an open top; its internal space is divided into a first separation chamber and a second separation chamber by a partition 321; a sealing cover 323 is detachably provided at the opening on the top of the chamber body, and openings for the reaction tube 21 to pass through are respectively penetrated in the middle of the chamber body and the partition 321; a second sealing ring 322 is embedded in the openings of the partition 321 and the reaction tube 21.

[0047] A guide bin 324 connected to the first separation chamber is fixedly provided on one side of the separation chamber 32 to guide the oil, water and flocculants in the first separation chamber out.

[0048] The separation chamber 32 is a hollow structure with an open top, and the interior is divided into a first separation chamber and a second separation chamber by a partition 321; the opening at the top of the separation chamber 32 is designed as a detachable sealing cover 323, which is convenient for maintenance and cleaning of the equipment; when it is necessary to pour waste water into the reaction tube 21, the sealing cover 323 can be directly opened, or a quick connector can be provided in the middle of the sealing cover 323 to achieve the effect of introducing waste water into the reaction tube 21; and openings for the reaction tube 21 to pass through are respectively provided in the middle of the chamber body and the partition 321, and first sealing rings 222 are embedded in these openings; this design ensures that the reaction tube 21 can maintain the sealing of the system when passing through the separation chamber 32, prevents leakage during the separation process, and thus maintains the stability and efficiency of the separation process.

[0049] By dividing the internal space of the separation chamber 32 into two independent separation chambers, multi-stage separation processing can be achieved; at the same time, the design of the sealing cover 323 and the embedded first sealing ring 222 enhances the sealing performance of the equipment and ensures that leakage is avoided during the separation process.

[0050] See also Figure 3 and Fig.10 As shown: the separation module 3 also includes a first separation module 33 and a second separation module 34 which are respectively connected to the first discharge port and the second discharge port opened at the lower end of the separation bin 32; the first separation module 33 and the second separation module 34 are relatively arranged on both sides below the separation bin 32; and an outlet element 35 which can connect the discharge ports of the first separation module 33 and the second separation module 34 is also arranged below the first separation module 33 and the second separation module 34.

[0051] The second separation module 34 has the same structure as the first separation module 33; and the access ends of the second separation module 34 and the first separation module 33 are both connected to the second separation chamber;

[0052] When it is necessary to further separate oil and water from the wastewater after preliminary filtration, firstly drive the vertical drive 4 to lift the reaction cylinder 21 to a position connected to the second separation chamber; then, start the lifting element 22 and use its force to press the wastewater into the second separation chamber; at this time, the wastewater entering the second separation chamber will be respectively introduced into the first separation module 33 and the second separation module 34. In this process, the wastewater is further finely separated by the two groups of modules; the wastewater treated by the first separation module 33 and the second separation module 34 will be re-aggregated under the guidance of the outlet element 35, and discharged uniformly through the outlet element 35, thereby finally achieving a secondary separation effect on the wastewater.

[0053] See also Figures 8 to 10As shown: the first separation module 33 includes a first main pipe 331, a second main pipe 332, and a first pipeline 333, a second pipeline 334 and a third pipeline 335 arranged in series between the first main pipe 331 and the second main pipe 332; and separation elements 36 are respectively provided in the middle of the first pipeline 333, the second pipeline 334 and the third pipeline 335; the separation element 36 is provided with a separation membrane plate 336 that can radially move away from or approach the pipeline, so as to filter the wastewater passing through the pipeline.

[0054] Since the first main pipe 331 and the second main pipe 332 are connected in series through the first pipe 333, the second pipe 334 and the third pipe 335; when the wastewater is introduced into the first separation module 33 through the first discharge port, the wastewater at this time will be transmitted through the first pipe 333, the second pipe 334 and the third pipe 335 respectively, and finally merged into the second main pipe 332; by adopting a three-way dispersed transmission method, a multi-branch multi-filtration point filtering method can be achieved, which greatly improves the filtration efficiency of the wastewater, and since the separation membrane plate 336 can be radially close to or away from the pipeline adjustment setting, when the separation membrane plate 336 needs to be replaced, the separation template can be replaced without stopping the machine.

[0055] The first separation module 33 is composed of a first main pipe 331 and a second main pipe 332, and a first pipeline 333, a second pipeline 334 and a third pipeline 335 are arranged in series between the two; a separation element 36 is also arranged in the middle of each pipeline, and these separation elements 36 include separation membrane plates 336 that can be radially away from or close to the pipeline; the adjustability of the separation membrane plates 336 is utilized to enable it to adapt to different separation requirements, and by adjusting the position of the separation membrane plates 336, efficient separation is achieved in a non-shutdown state, thereby ensuring the continuity of wastewater separation;

[0056] By setting up multiple pipelines in parallel in the first separation module 33 and providing an adjustable separation element 36 in each pipeline, the diversion effect of one pipe with multiple branches can be achieved, which greatly improves the separation efficiency and effect; the adjustable separation template ensures that when treating different types of wastewater, the system can quickly adjust and replace the corresponding separation membrane plate 336, thereby enhancing the adaptability and operational flexibility of the equipment.

[0057] See also Figures 8 to 10 As shown: the separation element 36 also includes a sliding frame 337 capable of installing the separation membrane plate 336, and the sliding frame 337 is provided with at least two installation grooves 338 for installing the separation membrane plate 336; so the sliding frame 337 is horizontally arranged in the middle of the first pipeline 333 through the adjustment frame 339.

[0058] The separation element 36 is equipped with a sliding frame 337 for installing the separation membrane plate 336; the sliding frame 337 is designed to have at least two installation grooves 338, which can be used to fix the separation membrane plate 336, so that the separation membrane plate 336 can accurately contact the fluid in the pipeline; the sliding frame 337 is horizontally arranged in the middle of the first pipeline 333 through the adjustment frame 339. This structural design not only facilitates the installation and disassembly of the membrane plate, but also allows the position of the membrane plate to be flexibly adjusted according to actual needs; by horizontally arranging the sliding frame 337, the separation membrane plate 336 can maintain a stable working state in the pipeline, ensuring that the fluid can be effectively filtered when passing through the separation membrane plate 336; when the separation membrane plate 336 needs to be replaced, it is only necessary to adjust the position of the separation membrane plate 336 by pulling the sliding frame 337 to achieve the effect of quickly replacing the separation membrane plate 336.

[0059] See also Fig. 9 As shown, the outlet element 35 is an arc-shaped tube 351 and a liquid discharge tube 352 communicating with the arc-shaped tube 351 is radially fixedly arranged in the middle of the arc-shaped tube 351 .

[0060] The outlet element 35 is an arc-shaped tube 351, which is designed to guide the wastewater treated by the separation module to ensure smooth discharge of the fluid. In order to further improve the drainage effect, a drainage tube 352 connected to the internal space of the arc-shaped tube 351 is radially fixed in the middle of the arc-shaped tube 351. The setting of the drainage tube 352 not only helps to reduce the fluid pressure in the arc-shaped tube 351, but also effectively diverts the discharged liquid to avoid blockage or backflow during the discharge process. The drainage tube 352 is connected to an external liquid storage tank to store the wastewater after final separation.

[0061] See also Figure 8 As shown: the separation membrane plate 336 is an ultrafiltration membrane.

[0062] Since the pore size of the ultrafiltration membrane is usually between 0.01 and 0.1 microns, when the wastewater is lifted and pressed into the first separation module 33 by the lifting element 22, the emulsified oil droplets, colloidal particles and suspended solids can be effectively retained; this fine pore size allows the ultrafiltration membrane to quickly break the emulsified oil and other tiny molecules in the emulsion and separate them out, while allowing molecular water and some small molecules to pass through; compared with traditional gravity separation or centrifugal separation methods, the separation efficiency of the ultrafiltration membrane is significantly improved, and it can process more complex emulsifier wastewater; and because the wastewater is preliminarily treated in a reaction barrel, there are no larger oil droplets and flocculants in the wastewater, which can greatly reduce the blockage of the separation membrane plate 336 when it is separated by the separation membrane plate 336, thereby improving the separation efficiency. Furthermore, the separation membrane plate 336 can also be a nanofiltration membrane.

[0063] The invention can carry out targeted separation and treatment of wastewater according to different stages of wastewater treatment, and has good filtering effect and high efficiency.

[0064] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An oil-water separator for treating emulsifier wastewater, characterized in that: The invention comprises a frame (1), a reaction module (2) arranged on the frame (1), the reaction module (2) being provided with a reaction cylinder (21) capable of carrying wastewater and a lifting element (22) capable of lifting the wastewater; a separation module (3) being coaxially fixedly arranged outside the reaction module (2) in a vertical state through a first mounting frame (31) and being connected to a top outlet of the reaction cylinder (21); the separation module (3) being provided with a separation chamber (32) and the separation chamber (32) having a first separation chamber and a second separation chamber; when the wastewater enters different chambers, different separation effects can be presented; and a vertical driver (4) capable of longitudinally lifting the reaction cylinder (21) is also provided at the bottom of the frame (1), so as to drive the reaction cylinder (21) to be connected to the first separation chamber and the second separation chamber respectively.

2. The oil-water separator for treating emulsifier wastewater according to claim 1, characterized in that: The reaction module (2) also includes a bubble generator (23) capable of prompting the wastewater in the reaction cylinder (21) to react quickly.

3. The oil-water separator for treating emulsifier wastewater according to claim 2, characterized in that: The lifting element (22) comprises a lifting plate (221) capable of axially sliding in the reaction tube (21), and a first sealing ring (222) is embeddedly installed on the edge of the lifting plate (221); the lifting plate (221) is driven by a vertical reciprocating driver (223) arranged on the lower surface.

4. The oil-water separator for treating emulsifier wastewater according to claim 1, characterized in that: The side wall of the reaction cylinder (21) is also vertically fixed with two slide rails (25) arranged opposite to each other; the two slide rails (25) are respectively slidably matched with slide grooves (24) vertically arranged on the frame (1); the vertical driver (4) is vertically fixed on the lower surface of the frame (1) and the driving end passes through the frame (1) and is fixedly connected to the bottom of the reaction cylinder (21).

5. The oil-water separator for treating emulsifier wastewater according to claim 1, characterized in that: The separation bin (32) is a hollow bin body with an open top; The internal space is divided into a first separation chamber and a second separation chamber by a partition (321); a sealing cover (323) is detachably provided at the opening on the top of the chamber body, and openings for the reaction cylinder (21) to pass through are respectively provided in the middle of the chamber body and the partition (321); a second sealing ring (322) is embedded in the openings of the partition (321) and the reaction cylinder (21).

6. The oil-water separator for treating emulsifier wastewater according to claim 5, characterized in that: The separation module (3) further comprises a first separation module (33) and a second separation module (34) which are respectively connected to a first discharge port and a second discharge port opened at the lower end of the separation bin (32); the first separation module (33) and the second separation module (34) are relatively arranged on both sides below the separation bin (32); and an outlet element (35) which is capable of connecting the discharge ports of the first separation module (33) and the second separation module (34) is also arranged below the first separation module (33) and the second separation module (34).

7. The oil-water separator for treating emulsifier wastewater according to claim 6, characterized in that: The first separation module (33) comprises a first main pipe (331), a second main pipe (332), and a first pipeline (333), a second pipeline (334) and a third pipeline (335) which are arranged in series between the first main pipe (331) and the second main pipe (332); and separation elements (36) are respectively arranged in the middle of the first pipeline (333), the second pipeline (334) and the third pipeline (335); the separation element (36) is provided with a separation membrane plate (336) which can be radially away from or close to the pipeline, so as to filter the wastewater passing through the pipeline.

8. The oil-water separator for treating emulsifier wastewater according to claim 7, characterized in that: The separation element (36) further includes a sliding frame (337) capable of installing the separation membrane plate (336), and the sliding frame (337) is provided with at least two installation grooves (338) for installing the separation membrane plate (336); therefore, the sliding frame (337) is horizontally arranged in the middle of the first pipeline (333) through the adjustment frame (339).

9. The oil-water separator for treating emulsifier wastewater according to claim 6, characterized in that: The outlet element (35) is an arc-shaped tube (351), and a liquid discharge tube (352) communicating with the arc-shaped tube (351) is radially fixedly arranged in the middle of the arc-shaped tube (351).

10. The oil-water separator for treating emulsifier wastewater according to claim 9, characterized in that: The separation membrane plate (336) is an ultrafiltration membrane.