Device and method for rapidly separating and enriching antibiotics in natural water body

Abstract

The invention discloses a device and a method for rapidly separating and enriching antibiotics in natural water, the device comprises a treatment shell on which a hollow fiber membrane assembly is inserted, and the device also comprises a bracket assembly, comprising a telescopic mechanism arranged on one side of a treatment shell, a top frame arranged at the output end of the telescopic mechanism, a movable frame movably arranged on the outer wall of the output end of the telescopic mechanism in a sleeving mode, electrode pieces arranged at the two ends of the movable frame, a driving connecting piece connecting the movable frame and the top frame and an electrophoresis apparatus arranged at one end of the top of the top frame. And the electrode cleaning part is arranged on one side, opposite to the processing shell, of the telescopic frame. When one electrode carries out antibiotic separation and enrichment work, the other electrode can be placed in the electrode cleaning part for automatic cleaning treatment, on one hand, the treatment efficiency of antibiotics in natural water is not delayed, on the other hand, the electrodes are cleaned through the electrode cleaning part, the efficiency and quality are better, the safety risk is low, and the cost is low. And the labor intensity is low.

Description

Technical Field

[0001] The invention relates to the technical field of water antibiotic separation, and in particular to a device and method for quickly separating and enriching antibiotics in natural water. Background Art

[0002] Sulfonamide antibiotics are a class of synthetic antibacterial drugs. They have been widely used to treat bacterial infections in humans and animals because of their broad antibacterial spectrum, stable properties, and ease of use. Sulfonamide antibiotics are a class of highly polar organic pollutants that mainly exist in environmental water media. As existing sewage treatment technologies are difficult to effectively remove sulfonamide antibiotics from wastewater, they are frequently detected in natural water bodies in many regions. Therefore, it is necessary to quickly separate and enrich antibiotics in natural water bodies.

[0003] Publication No.: CN112557530B proposes a method for separating and enriching sulfonamide antibiotics in water, and the method discloses the following steps: 1) sealing one end of a hollow fiber membrane and loading an extraction solvent on the hollow fiber membrane; 2) injecting a receptor solution into the inner cavity of the hollow fiber membrane; 3) immersing the sealed end of the hollow fiber membrane treated in step 2) in a water sample, inserting a working electrode into the water sample, inserting a counter electrode into the receptor solution, applying voltage to the working electrode and the counter electrode to form an electric field, and extracting sulfonamide antibiotics in the water sample under the action of the electric field; 4) after the extraction is completed, collecting the receptor solution in the hollow fiber membrane to complete the separation and enrichment of sulfonamide antibiotics in the water sample.

[0004] The above-mentioned method for separating and enriching sulfonamide antibiotics in water uses electrodes to apply an electric field to improve the mass transfer rate and the recovery rate of sulfonamide antibiotics. However, the electrodes need to be treated after each use to ensure that the electrodes can maintain high efficiency and stable performance in subsequent treatments. The traditional method is usually to manually clean the electrodes, which is troublesome to use, inefficient, and increases labor intensity. The residual solution on the electrodes can easily cause harm to humans, posing certain safety risks. To this end, we propose a device and method for rapid separation and enrichment of antibiotics in natural water bodies. Summary of the invention

[0005] The purpose of the present invention is to provide a device and method for rapid separation and enrichment of antibiotics in natural water bodies, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A device for rapid separation and enrichment of antibiotics in natural water, comprising a treatment shell for loading the natural water to be treated, wherein a hollow fiber membrane assembly for loading an extraction solvent and a receptor solution is inserted into the treatment shell, and further comprising: A support assembly, comprising a telescopic mechanism disposed on one side of a processing shell, a top frame disposed at an output end of the telescopic mechanism, a movable frame movably sleeved on an outer wall of the output end of the telescopic mechanism and located at the bottom end of the top frame, electrode components disposed at both ends of the movable frame, a driving connection component connecting the movable frame and the top frame, and an electrophoresis instrument disposed at one end of the top of the top frame and corresponding to the processing shell, wherein the output end of the electrophoresis instrument is detachably connected to the electrode component at one end, the driving connection component is used to drive the movable frame to move relative to the top frame so that an electrode component is separated from the output end of the electrophoresis instrument, and after separation, the movable frame is driven to rotate a preset angle, the electrode component comprises two groups of electrodes, and the two groups of electrodes can be respectively inserted into the hollow fiber membrane assembly and the processing shell; and, The electrode cleaning part is arranged on the side of the telescopic frame opposite to the processing shell and is used for cleaning the electrode parts which are not connected to the electrophoresis apparatus.

[0007] A further improvement is that the drive connector comprises: An electromagnetic component is arranged at the bottom of the top frame and is used to energize and adsorb the movable frame. When the electromagnetic component adsorbs the movable frame, the output end of the electrophoresis instrument is connected to an electrode component; An elastic connecting member, one end of which is connected to the bottom of the top frame and the other end of which is slidably connected to the movable frame; and The first rotating device is arranged on the outer wall of the output end of the telescopic mechanism, and the output end of the first rotating device is meshed and connected with the gear ring part arranged on the bottom of the movable frame through a gear.

[0008] A further improvement is that the electrode cleaning unit comprises: A cleaning shell, wherein a movable opening for inserting an electrode is provided on the top of the cleaning shell; A movable block is arranged in the cleaning shell and located between two groups of electrodes in the cleaning shell. A connecting frame is arranged on both sides of the movable block. A sleeve is arranged in the connecting frame. An annular groove is opened on the outer wall of the sleeve. An annular seal is rotatably arranged at the notch of the annular groove. The annular seal is fixed to the inner wall of the connecting frame. A nozzle connected to the annular groove and facing the electrode is arranged at an inclined annular array on the upper end of the inner wall of the sleeve. An annular brush is arranged on the inner wall of the sleeve and below the nozzle. Two groups of the sleeve and the annular brush are respectively sleeved on the outer sides of the two groups of electrodes. A gas-liquid supply part is provided on the outer wall of the cleaning shell, and its output end is respectively connected with the two groups of annular grooves; and, The driving part is arranged in the cleaning shell and is used to drive the movable block to move up and down reciprocatingly.

[0009] A further improvement is that a driving gear is rotatably provided on the outer side of the connecting frame, a vertical rack is meshed on one side of the driving gear, the rack is arranged on the outer wall of the cleaning shell, the shaft of the driving gear is transmission-connected with a driven gear member, and the driven gear member is meshed and connected with a gear ring member sleeved on the outer wall of the sleeve.

[0010] A further improvement is that a bottom ring coaxial with the bottom of the sleeve is provided, and a carrier frame movably mounted on the outside of the electrode is provided below the bottom ring. The carrier frame is also connected to the connecting frame, and swing arms are provided on both sides of the inner cavity of the carrier frame for rotation through a torsion spring rotating shaft. A knocking piece for contacting the outer wall of the electrode is provided at the lower end of the swing arm, and the upper end of the swing arm extends into the bottom ring. A protrusion is provided on the inner wall of the bottom ring for pushing the upper end of the swing arm to move toward the axis of the bottom ring.

[0011] A further improvement is that the gas-liquid supply part comprises: A pipeline connector, wherein the output end of the pipeline connector is connected to two sets of telescopic tubes, the two sets of telescopic tubes respectively penetrate two annular seals and are connected to corresponding annular grooves, and both sets of telescopic tubes are provided with one-way valves; A cleaning liquid supply mechanism is provided on the outer wall of the treatment shell, an output end of which is connected to an input end of a pipeline connector through a pipeline, and a solenoid valve is provided in the pipeline; and, The heat supply mechanism is arranged on the outer wall of the processing shell, and its output end is connected with the other input end of the pipeline connector through the second pipeline, and the second electromagnetic valve is arranged in the second pipeline.

[0012] A further improvement is that a detection sensor 1 for contacting the movable block is embedded in the top of the cleaning shell, and a detection sensor 2 for contacting a connecting frame is provided at the lower end of the cleaning shell. Both the detection sensor 1 and the detection sensor 2 are electrically connected to a controller arranged on the top frame. The controller is used to control the opening of the solenoid valve 1 when the detection sensor 1 contacts the cleaning shell, and to control the closing of the solenoid valve 1 and the opening of the solenoid valve 2 when the detection sensor 2 contacts the connecting frame.

[0013] A further improvement is that the driving unit comprises: A reciprocating stud is rotatably disposed in the cleaning shell and is located between the two sets of electrodes. The reciprocating stud thread penetrates the movable block. The lower end of the reciprocating stud movably penetrates the bottom of the cleaning shell and is connected to the second output end of the rotating device. The second rotating device is disposed in the inner cavity of the base. The base is disposed at the processing shell, the telescopic mechanism and the bottom of the cleaning shell; and, The stirring piece is rotatably arranged at the bottom of the inner cavity of the processing shell, and the shaft of the stirring piece extends to the inner cavity of the base and is transmission-connected with the second output end of the rotating device.

[0014] A method for rapid separation and enrichment of antibiotics in natural water, using the above separation and enrichment device, comprises the following steps: S1: Close one end of the hollow fiber membrane module, load the extraction solvent on the hollow fiber membrane module, inject the natural water to be treated into the treatment shell, inject the receptor solution into the hollow fiber membrane module, and insert the hollow fiber membrane module into the treatment shell so that the closed end is immersed in the natural water to be treated; S2: The top frame is driven to move by the telescopic mechanism, so that two sets of electrodes connected to the electrophoresis instrument are respectively inserted into the hollow fiber membrane module and the treatment shell, and a voltage is applied to the two sets of electrodes by the electrophoresis instrument to form an electric field, thereby extracting antibiotics in the natural water to be treated; S3: After the extraction is completed, the top frame is driven by the telescopic mechanism to drive the electrode upward to the specified position to collect the receptor solution in the hollow fiber membrane assembly, thereby completing the separation and enrichment of antibiotics in the natural water to be treated; wherein, after collecting the receptor solution in the hollow fiber membrane assembly, the movable frame is driven to move relative to the top frame by the driving connecting member so that an electrode component is separated from the output end of the electrophoresis instrument, and after the separation, the movable frame is driven to rotate a preset angle so that the used electrode component corresponds to the electrode cleaning part, and the other electrode component corresponds to the hollow fiber membrane assembly and the processing shell, and the used electrode component is cleaned by the electrode cleaning part.

[0015] Compared with the prior art, the present invention has the following beneficial effects: Electrodes are arranged at both ends of the movable frame of the support assembly of the present invention. When one electrode enters the treatment shell and the hollow fiber membrane assembly to separate and enrich the antibiotics, the other electrode can be placed in the electrode cleaning part for automatic cleaning. On the one hand, the efficiency of treating the antibiotics in the natural water body is not delayed. On the other hand, the electrode cleaning part cleans the electrode, which has better efficiency and quality, low safety risk, and less labor intensity. 2) The driving part of the electrode cleaning part of the present invention can drive the movable block to move back and forth along the electrode axis. During the movement, the sleeve on the outer wall of the movable block rotates synchronously, and the liquid sprayed from the nozzle in the sleeve cooperates with the annular brush part on the inner wall of the sleeve to deeply brush the electrode, effectively removing stubborn stains, oxides and other attachments on the outer wall of the electrode, and restoring the smoothness and conductivity of the electrode surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the separation and enrichment device of the present invention; Figure 2 It is a schematic diagram of the structure of the bracket assembly of the present invention; Figure 3 For the present invention Figure 1 A magnified view of structure A.

[0017] In the figure: 1. treatment shell; 2. hollow fiber membrane assembly; 3. electrode; 4. stirring member; 5. electrophoresis instrument; 6. controller; 7. telescopic mechanism; 8. top frame; 9. movable frame; 10. electromagnetic member; 11. rotating device one; 12. elastic connecting member; 13. cleaning shell; 14. movable block; 15. reciprocating stud; 16. rotating device two; 17. connecting frame; 18. sleeve; 19. annular seal; 20. annular groove; 21. nozzle; 22. annular brush member; 23. driving gear; 24. driven gear member; 25. rack; 26. bottom ring; 27. swing arm; 28. knocking member; 29. ​​protrusion; 30. detection sensor one; 31. support frame; 32. base; 33. detection sensor two. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 2 , a rapid separation and enrichment device for antibiotics in natural water, comprising a treatment shell 1 for loading a natural water body to be treated (aqueous sample solution), the treatment shell 1 having a water inlet and a water outlet (not shown in the figure), the treatment shell 1 being provided with a hollow fiber membrane assembly 2 for loading an extraction solvent and a receptor solution, the hollow fiber membrane assembly 2 being, for example, T-shaped in vertical section, so as to be inserted and carried on the treatment shell 1 for convenient access, wherein the loaded extraction solvent, for example, comprises a mixed solution of n-heptanol and 2-nitrophenyl octyl ether, the volume ratio percentage of n-heptanol in the mixed solution being 20%-100%, and of course not limited to this one, wherein the receptor solution is any one of a NaOH solution, a Na2CO3 solution, and a Na3PO4 solution, and the pH of the natural water body to be treated and the receptor solution is 9-13; Also includes: The support assembly includes a telescopic mechanism 7 disposed on one side of the processing shell 1, a top frame 8 disposed at the output end of the telescopic mechanism 7, a movable frame 9 movably sleeved at the output end of the telescopic mechanism 7 and located at the bottom end of the top frame 8, electrode members disposed at both ends of the movable frame 9, a driving connection member connecting the movable frame 9 and the top frame 8, and an electrophoresis instrument 5 disposed at one end of the top of the top frame 8 and corresponding to the processing shell 1; The telescopic mechanism 7 is, for example, an electric telescopic bracket, etc., which is not limited here. The electrophoresis apparatus 5 is a conventional device in the art and is not described in detail here. The output end of the electrophoresis apparatus 5 is detachably connected to the electrode member at one end. For example, the output end of the electrophoresis apparatus 5 is a socket, and the electrode member has a plug that matches the socket. The two are connected in a plug-in manner, but this is not limited to this manner. The driving connection member is used to drive the movable frame 9 to move relative to the top frame 8 so that an electrode member is separated from the output end of the electrophoresis apparatus 5, and after separation, the movable frame 9 is driven to rotate a preset angle so as to realize the conversion use of the two electrode members; The electrode assembly includes two groups of electrodes 3, the two groups of electrodes 3 include, for example, a working electrode for inserting into the hollow fiber membrane assembly 2, and a counter electrode for inserting into the processing shell 1, the working electrode is connected to the positive electrode port of the electrophoresis instrument 5, and the counter electrode is connected to the negative electrode port of the electrophoresis instrument 5; The two groups of electrodes 3 can be inserted into the hollow fiber membrane assembly 2 and the processing shell 1 respectively, and both the hollow fiber membrane assembly 2 and the processing shell 1 have through holes for the electrodes 3 to enter; and, The electrode cleaning part is arranged on a side of the telescopic frame opposite to the processing shell 1 and is used for cleaning the electrode parts which are not connected to the output end of the electrophoresis apparatus 5 .

[0020] Preferably, the driving connection member of this embodiment includes: The electromagnetic member 10 is provided at the bottom of the top frame 8 and is used to electrically adsorb the movable frame 9. The electromagnetic member 10 is, for example, an electromagnet. A magnetic member corresponding to the electromagnetic member 10 may be embedded on the top of the movable frame 9, or the movable frame 9 may be made of a magnetic material. When the electromagnetic member 10 adsorbs the movable frame 9, the output end of the electrophoresis instrument 5 is connected to an electrode member. An elastic connector 12, one end of which is connected to the bottom of the top frame 8, and the other end of which is slidably connected to the movable frame 9. For example, the elastic connector 12 is an elastic telescopic rod, which can be slidably connected with the annular slide groove (annular slide rail) on the top of the movable frame 9 by using a slider. When the electromagnetic member 10 is powered off, the elastic connector 12 drives the movable frame 9 to reset, so that the electrode member is disconnected from the electrophoresis apparatus 5; and A rotating device 11 is arranged on the outer wall of the output end of the telescopic mechanism 7. The rotating device 11 is, for example, a servo motor and a reducer. The output end of the rotating device 11 is meshed and connected with a toothed ring portion arranged at the bottom of the movable frame 9 through a gear. The axial height of the toothed ring portion is greater than the axial height of the gear. After the electrode member is disconnected from the electrophoresis apparatus 5, the movable frame 9 can be driven by the rotating device 11 to realize the conversion of the electrode members at both ends.

[0021] See also Figure 3 Preferably, the electrode cleaning unit of this embodiment includes: A cleaning shell 13, the top of which is provided with a movable opening for inserting the electrode 3, and the outer wall of the cleaning shell 13 is provided with a liquid discharge opening (not shown in the figure); The movable block 14 is arranged in the cleaning shell 13 and between the two groups of electrodes 3 in the cleaning shell 13. A connecting frame 17 is arranged on both sides of the movable block 14. The connecting frame 17 is, for example, an annular frame, and a sleeve 18 is arranged in the connecting frame 17. An annular groove 20 is opened on the outer wall of the sleeve 18. An annular seal 19 is arranged at the notch of the annular groove 20 through a bearing. The annular seal 19 is fixed to the inner wall of the connecting frame 17, so that the sleeve 18 can rotate relative to the annular seal 19 and the connecting frame 17. The upper end of the inner wall of the sleeve 18 is inclined in an annular array and is provided with a nozzle 21 connected to the annular groove 20 and facing the electrode 3. The nozzle 21 faces one end of the electrode 3. The cleaning liquid sprayed from the nozzle 21 can better remove the impurities or solutions remaining on the electrode 3. The inner wall of the sleeve 18 and the lower part of the nozzle 21 are detachably provided with an annular brush member 22. The annular brush member 22 is used to rub the outer wall of the electrode 3 to improve the cleaning quality of the electrode 3. Since the annular brush member 22 is located below the nozzle 21, the impurities and solutions cleaned by the annular brush member 22 can be effectively reduced under the action of the cleaning liquid sprayed downward from the nozzle 21. The two sets of sleeves 18 and the annular brush member 22 are respectively sleeved on the outer sides of the two sets of electrodes 3. A gas-liquid supply part is provided on the outer wall of the cleaning shell 13, and its output end is respectively connected with two groups of annular grooves 20, for supplying cleaning liquid or gas to the annular grooves 20, and making the cleaning liquid or gas spray out from the nozzle 21; and, The driving part is arranged in the cleaning shell 13 and is used to drive the movable block 14 to move up and down so as to fully clean the electrode 3.

[0022] As a preferred embodiment, a driving gear 23 is rotatably provided on the outer side of the connecting frame 17 of the present embodiment, and a vertical rack 25 is meshed on one side of the driving gear 23. The rack 25 is provided on the outer wall of the cleaning shell 13. When the movable block 14 reciprocates up and down, the driving gear 23 moves along the rack 25, and then the driving gear 23 rotates. The shaft of the driving gear 23 is transmission-connected with the driven gear member 24. For example, the shaft of the driving gear 23 is transmission-connected with the shaft of the driven gear member 24 through a bevel gear set. The bevel gear set is a conventional structure in this field, including two sets of meshing bevel gears and a bearing seat, etc. The driven gear member 24 is meshingly connected with a gear ring member sleeved on the outer wall of the sleeve 18. The driving gear 23 rotates to rotate the driven gear member 24. The driven gear member 24 drives the gear ring member to drive the sleeve 18 to rotate, thereby causing the annular brush member 22 and the nozzle 21 to move in a circle around the electrode 3 to comprehensively clean the electrode 3.

[0023] Preferably, the bottom of the sleeve 18 of this embodiment is provided with a bottom ring 26 coaxial therewith, and a carrier frame 31 movably sleeved on the outside of the electrode 3 is provided below the bottom ring 26. The vertical section of the carrier frame 31 is L-shaped, and the carrier frame 31 is also connected to the connecting frame 17. Both sides of the inner cavity of the carrier frame 31 are rotatably provided with a V-shaped swing arm 27 through a torsion spring shaft member. The torsion spring shaft member is a shaft and a torsion spring. The lower end of the swing arm 27 is provided with a knocking piece 28 for contacting the outer wall of the electrode 3. The knocking piece 28 is, for example, spherical, and its upper end extends into the bottom ring 26. The bottom ring 2 The inner wall of 6 is provided with a protrusion 29 for pushing the upper end of the swing arm 27 to move toward the axis of the bottom ring 26. When the bottom ring 26 rotates with the sleeve 18, the protrusion 29 intermittently pushes the upper ends of the two groups of swing arms 27 to move inward. When the protrusion 29 is separated from the upper end of the swing arm 27, the swing arm 27 is reset under the action of the torsion spring shaft member and strikes the electrode 3 through the striking member 28. The protrusion 29 is an arc-shaped protrusion with a small specification, so that the striking member 28 can strike the electrode 3 with a small amplitude, ensuring that the electrode 3 can generate a certain vibration, improving its cleaning quality and efficiency while avoiding damage to the electrode 3.

[0024] Preferably, the gas-liquid supply unit of this embodiment includes: A pipe connector, for example, a four-way pipe, the output end of which is connected with two sets of telescopic pipes, which respectively penetrate two annular seals 19 and are connected with the corresponding annular grooves 20, and a one-way valve is provided in each of the two sets of telescopic pipes so that the liquid or gas entering the annular groove 20 will not flow back; A cleaning liquid supply mechanism is provided on the outer wall of the processing shell 1, and its output end is connected to an input end of a pipeline connector through a pipeline 1, and a solenoid valve 1 is provided in the pipeline 1. The cleaning liquid supply mechanism includes, for example, a box body filled with cleaning liquid and a pump body connected to the box body, etc. The cleaning liquid in the box body can be introduced into the pipeline 1 through the pump body, and then enters the annular groove 20 through the telescopic tube and is sprayed from the nozzle 21; and, The heat supply mechanism is arranged on the outer wall of the processing shell 1, and its output end is connected with the other input end of the pipeline connector through pipeline 2, and a solenoid valve 2 is arranged in pipeline 2. The heat supply mechanism is, for example, a heater, etc. By closing the solenoid valve 1 in pipeline 1 and opening the solenoid valve 2, the hot air flow supplied by the heat supply mechanism can enter pipeline 2, and then enter the annular groove 20 through the telescopic tube and be ejected from the nozzle 21.

[0025] As a preference, a detection sensor 1 30 for contacting the movable block 14 is embedded at the top of the cleaning shell 13 of the present embodiment, and a detection sensor 2 33 for contacting a connecting frame 17 is provided at the lower end of the cleaning shell 13. The detection sensor 2 33 is specifically located below the electrode 3 in the cleaning shell 13. Both the detection sensor 1 30 and the detection sensor 2 33 can be pressure sensors, and their models are not described in detail here. The detection sensor 1 30 and the detection sensor 2 33 are both electrically connected to the controller 6 provided on the top frame 8. The controller 6 is used to control the electromagnetic valve 1 to open when the detection sensor 1 30 contacts the cleaning shell 13, and to control the electromagnetic valve 1 to close and the electromagnetic valve 2 to open when the detection sensor 2 33 contacts the connecting frame 17. In this way, when the movable block 14 moves from top to bottom, the cleaning liquid is sprayed out from the nozzle 21, and when the movable block 14 moves to the bottom and then moves upward, the hot air flow is sprayed out from the nozzle 21, so that when the movable block 14 moves back and forth up and down, the electrode 3 is cleaned and dried.

[0026] Preferably, the driving unit of this embodiment includes: A reciprocating stud 15 is rotatably disposed in the cleaning shell 13 and is located between the two groups of electrodes 3. The reciprocating stud 15 threadably penetrates the movable block 14. The lower end of the reciprocating stud 15 movably penetrates the bottom of the cleaning shell 13 and is connected to the output end of the second rotating device 16. The second rotating device 16 is, for example, a motor and a reducer. The second rotating device 16 is disposed in the inner cavity of the base 32. The base 32 is disposed at the processing shell 1, the telescopic mechanism 7 and the bottom of the cleaning shell 13. When the second rotating device 16 is working, it drives the reciprocating stud 15, and the reciprocating stud 15 drives the movable block 14 to reciprocate up and down; and, The stirring member 4 is rotatably arranged at the bottom of the inner cavity of the treatment shell 1, and the shaft of the stirring member 4 extends to the inner cavity of the base 32 and is transmission-connected to the output end of the rotating device 2 16. The stirring member 4 and the output end of the rotating device 2 16 are transmission-connected by a sprocket transmission group, for example. The sprocket transmission group includes a sprocket and a chain. When one electrode member is cleaning in the cleaning shell 13, the other electrode member is performing separation and enrichment work in the hollow fiber membrane assembly 2 and the treatment shell 1. Because the rotating device 2 16 drives the reciprocating stud 15 to work during cleaning, the rotating device 2 16 also enables the stirring member 4 to rotate and stir the water to be treated in the treatment shell 1, thereby improving the separation and enrichment efficiency and quality of antibiotics.

[0027] A method for rapid separation and enrichment of antibiotics in natural water, using the above separation and enrichment device, comprises the following steps: S1: Close one end of the hollow fiber membrane assembly 2, load the extraction solvent on the hollow fiber membrane assembly 2, inject the natural water to be treated into the treatment shell 1, inject the receptor solution into the hollow fiber membrane assembly 2, and insert the hollow fiber membrane assembly 2 on the treatment shell 1 so that the closed end is immersed in the natural water to be treated; S2: The top frame 8 is driven to move by the telescopic mechanism 7, so that the two sets of electrodes 3 connected to the electrophoresis apparatus 5 are respectively inserted into the hollow fiber membrane assembly 2 and the treatment shell 1, and a voltage is applied to the two sets of electrodes 3 by the electrophoresis apparatus 5 to form an electric field, thereby extracting antibiotics in the natural water to be treated; S3: After the extraction is completed, the telescopic mechanism 7 drives the top frame 8 to drive the electrode 3 upward to the specified position to collect the receptor solution in the hollow fiber membrane assembly 2, and completes the separation and enrichment of antibiotics in the natural water to be treated; wherein, after collecting the receptor solution in the hollow fiber membrane assembly 2, the movable frame 9 is driven by the driving connecting member to move relative to the top frame 8 so that an electrode component is separated from the output end of the electrophoresis instrument 5, and after separation, the movable frame 9 is driven to rotate a preset angle so that the used electrode component corresponds to the electrode cleaning part, and the other electrode component corresponds to the hollow fiber membrane assembly 2 and the processing shell 1, and the used electrode component is cleaned by the electrode cleaning part.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for rapid separation and enrichment of antibiotics in natural water, comprising a treatment shell (1) for loading the natural water to be treated, wherein a hollow fiber membrane module (2) for loading an extraction solvent and a receptor solution is inserted into the treatment shell (1), characterized in that: Also includes: A support assembly comprises a telescopic mechanism (7) arranged at one side of a processing shell (1), a top frame (8) arranged at the output end of the telescopic mechanism (7), a movable frame (9) movably mounted on the outer wall of the output end of the telescopic mechanism (7) and located at the bottom end of the top frame (8), electrode components arranged at both ends of the movable frame (9), a driving connection component connecting the movable frame (9) and the top frame (8), and an electrophoresis instrument (5) arranged at one end of the top of the top frame (8) and corresponding to the processing shell (1), wherein the output end of the electrophoresis instrument (5) is detachably connected to the electrode component at one end, the driving connection component is used to drive the movable frame (9) to move relative to the top frame (8) so that an electrode component is separated from the output end of the electrophoresis instrument (5), and after separation, drives the movable frame (9) to rotate a preset angle, wherein the electrode component comprises two groups of electrodes (3), and the two groups of electrodes (3) can be inserted into the hollow fiber membrane assembly (2) and the processing shell (1) respectively; and, The electrode cleaning part is arranged on a side of the telescopic frame opposite to the processing shell (1) and is used for cleaning the electrode parts not connected to the electrophoresis apparatus (5).

2. The separation and enrichment device according to claim 1, characterized in that: The drive connection member comprises: An electromagnetic component (10) is arranged at the bottom of the top frame (8) and is used to adsorb the movable frame (9) when powered on. When the electromagnetic component (10) adsorbs the movable frame (9), the output end of the electrophoresis instrument (5) is connected to an electrode component; an elastic connecting member (12), one end of which is connected to the bottom of the top frame (8) and the other end of which is slidably connected to the movable frame (9); and The rotating device (11) is arranged on the outer wall of the output end of the telescopic mechanism (7), and the output end of the rotating device (11) is meshedly connected with the gear ring part arranged at the bottom of the movable frame (9) through a gear.

3. The separation and enrichment device according to claim 1, characterized in that: The electrode cleaning unit comprises: A cleaning shell (13), wherein a movable opening for inserting the electrode (3) is provided on the top of the cleaning shell (13); A movable block (14) is arranged in a cleaning shell (13) and located between two groups of electrodes (3) in the cleaning shell (13); a connecting frame (17) is arranged on both sides of the movable block (14); a sleeve (18) is arranged in the connecting frame (17); an annular groove (20) is provided on the outer wall of the sleeve (18); an annular seal (19) is rotatably arranged at the notch of the annular groove (20); the annular seal (19) is fixed to the inner wall of the connecting frame (17); a nozzle (21) connected to the annular groove (20) and facing the electrode (3) is arranged in an annular array at the upper end of the inner wall of the sleeve (18); an annular brush member (22) is arranged on the inner wall of the sleeve (18) and below the nozzle (21); two groups of the sleeve (18) and the annular brush member (22) are respectively sleeved on the outer sides of the two groups of electrodes (3); A gas-liquid supply part is provided on the outer wall of the cleaning shell (13), and its output end is respectively connected with two groups of annular grooves (20); and, The driving part is arranged in the cleaning shell (13) and is used for driving the movable block (14) to move up and down reciprocatingly.

4. The separation and enrichment device according to claim 3, characterized in that: A driving gear (23) is rotatably provided on the outer side of the connecting frame (17), one side of the driving gear (23) is meshed with a vertical rack (25), the rack (25) is arranged on the outer wall of the cleaning shell (13), the shaft of the driving gear (23) is transmission-connected with a driven gear member (24), and the driven gear member (24) is meshed with a gear ring member sleeved on the outer wall of the sleeve (18).

5. The separation and enrichment device according to claim 4, characterized in that: The bottom of the sleeve (18) is provided with a bottom ring (26) coaxial with the sleeve (18), and a carrier frame (31) movably sleeved on the outside of the electrode (3) is provided below the bottom ring (26). The carrier frame (31) is also connected to the connecting frame (17). Both sides of the inner cavity of the carrier frame (31) are provided with swing arms (27) rotatably provided through a torsion spring rotating shaft. The lower end of the swing arm (27) is provided with a striking piece (28) for contacting the outer wall of the electrode (3), and the upper end of the swing arm (27) extends into the bottom ring (26). The inner wall of the bottom ring (26) is provided with a protrusion (29) for pushing the upper end of the swing arm (27) to move toward the axis of the bottom ring (26).

6. The separation and enrichment device according to claim 5, characterized in that: The gas-liquid supply part includes: A pipeline connector, wherein the output end of the pipeline connector is connected to two groups of telescopic tubes, the two groups of telescopic tubes respectively penetrate two annular seals (19) and are connected to corresponding annular grooves (20), and both groups of telescopic tubes are provided with one-way valves; A cleaning liquid supply mechanism is arranged on the outer wall of the processing shell (1), the output end of which is connected to an input end of a pipeline connector through a pipeline, and a solenoid valve is arranged in the pipeline; and The heat supply mechanism is arranged on the outer wall of the processing shell (1), and its output end is connected with the other input end of the pipeline connector through a second pipeline, and a second electromagnetic valve is arranged in the second pipeline.

7. The separation and enrichment device according to claim 6, characterized in that: A detection sensor 1 (30) for contacting the movable block (14) is embedded in the top of the cleaning shell (13), and a detection sensor 2 (33) for contacting a connecting frame (17) is provided at the lower end of the cleaning shell (13). Both the detection sensor 1 (30) and the detection sensor 2 (33) are electrically connected to a controller (6) provided on the top frame (8). The controller (6) is used to control the solenoid valve 1 to open when the detection sensor 1 (30) contacts the cleaning shell (13), and to control the solenoid valve 1 to close and the solenoid valve 2 to open when the detection sensor 2 (33) contacts the connecting frame (17).

8. The separation and enrichment device according to claim 3, characterized in that: The driving unit comprises: A reciprocating stud (15) is rotatably disposed in the cleaning shell (13) and is located between the two groups of electrodes (3); the reciprocating stud (15) is threadedly penetrated through the movable block (14); the lower end of the reciprocating stud (15) movably penetrates the bottom of the cleaning shell (13) and is connected to the output end of the second rotating device (16); the second rotating device (16) is disposed in the inner cavity of the base (32); the base (32) is disposed on the processing shell (1), the telescopic mechanism (7) and the bottom of the cleaning shell (13); and, The stirring member (4) is rotatably arranged at the bottom of the inner cavity of the processing shell (1), and the shaft of the stirring member (4) extends to the inner cavity of the base (32) and is drivingly connected to the output end of the second rotating device (16).

9. A method for rapid separation and enrichment of antibiotics in natural water, using the separation and enrichment device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1: one end of the hollow fiber membrane module (2) is closed, an extraction solvent is loaded on the hollow fiber membrane module (2), the natural water to be treated is injected into the treatment shell (1), a receptor solution is injected into the hollow fiber membrane module (2), and the hollow fiber membrane module (2) is inserted into the treatment shell (1) so that the closed end thereof is immersed in the natural water to be treated; S2: The top frame (8) is driven to move by the telescopic mechanism (7), so that the two sets of electrodes (3) connected to the electrophoresis apparatus (5) are respectively inserted into the hollow fiber membrane assembly (2) and the treatment shell (1), and a voltage is applied to the two sets of electrodes (3) by the electrophoresis apparatus (5) to form an electric field, thereby extracting antibiotics in the natural water to be treated; S3: After the extraction is completed, the top frame (8) is driven by the telescopic mechanism (7) to drive the electrode (3) upward to a specified position to collect the receptor solution in the hollow fiber membrane assembly (2), thereby completing the separation and enrichment of antibiotics in the natural water body to be treated; wherein, after collecting the receptor solution in the hollow fiber membrane assembly (2), the movable frame (9) is driven by the driving connecting member to move relative to the top frame (8) so that an electrode component is separated from the output end of the electrophoresis apparatus (5), and after separation, the movable frame (9) is driven to rotate at a preset angle so that the used electrode component corresponds to the electrode cleaning part, and the other electrode component corresponds to the hollow fiber membrane assembly (2) and the processing shell (1), and the used electrode component is cleaned by the electrode cleaning part.

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