RO (Reverse Osmosis) membrane separation electroplating waste liquid treatment equipment

Abstract

The utility model relates to reverse osmosis (RO) membrane separation electroplating waste liquid treatment equipment which is characterized in that a net cylinder is arranged in an inner cavity of a filter shell, a hollow fiber separation membrane is fixedly sleeved on the outer side of the net cylinder, a connecting plate is fixedly arranged at the bottom of the net cylinder, a containing cavity is arranged at the top end of the connecting plate and inside the net cylinder, and a pulse magnetic mechanism is arranged in the containing cavity. The pulse magnetic mechanism comprises at least one group of magnetic field generation units, each group of magnetic field generation units comprises a cylindrical iron core and a magnetic field generation coil, the magnetic field generation coil is wound on the outer side of the cylindrical iron core, and the magnetic field generation coil of each group of magnetic field generation units is connected to a pulse power supply and generates a pulse magnetic field in the accommodating chamber; a mounting hole is formed in the bottom of the filter shell, and the connecting plate is detachably arranged in the mounting hole; under the action of a high-intensity magnetic field generated by the pulse magnetic mechanism, the metal ions are pushed to be separated from the separation membrane, and the metal ions can be recycled after being further collected and treated.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste liquid treatment equipment technical field especially relates to a kind of RO membrane separation electroplating waste liquid treatment equipment. BACKGROUND

[0002] In modern industrial production, electroplating is a widely used surface treatment technology, which forms a dense, uniform and strong bonding metal or alloy coating on the metal surface by electrolytic method to improve the corrosion resistance, wear resistance, electrical conductivity, aesthetic properties and other properties of the product. However, a large amount of waste liquid will be generated during electroplating process, and these waste liquids contain a large amount of heavy metal ions such as copper ions. If discharged directly into the environment, it will cause serious pollution to the environment. Therefore, the electroplating waste liquid needs to be treated and purified before discharge.

[0003] In the existing equipment for purifying electroplating waste liquid with separation membrane, the impurities separated from the electroplating waste liquid after passing through the separation membrane contain a lot of metal ions such as copper ions, which are not convenient to separate from the separation membrane for reuse. Secondly, the pore size of the separation membrane is very small, so the separated metal ions and other impurities can easily block the pores, reducing the function and affecting normal work. SUMMARY

[0004] To overcome the above problems, the utility model provides a kind of RO membrane separation electroplating waste liquid treatment equipment.

[0005] The utility model realizes the above-mentioned purposes by the following technical solutions: a kind of RO membrane separation electroplating waste liquid treatment equipment, including filter shell, the filter shell inner chamber is provided with net cylinder, the outside of the net cylinder is fixedly provided with hollow fiber separation membrane, a plurality of filter holes are formed in the outside of the net cylinder, the bottom of the net cylinder is fixedly installed with connecting plate, the top of the connecting plate and in the inside of the net cylinder is provided with containing chamber, pulse magnetic mechanism is provided in the containing chamber, the pulse magnetic mechanism includes at least one group of magnetic field generating unit, each group of the magnetic field generating unit includes cylindrical iron core and magnetic field generating coil, the magnetic field generating coil is wound outside the cylindrical iron core, the magnetic field generating coil of each group of magnetic field generating unit is connected to pulse power supply, and pulse magnetic field is generated in the containing chamber, the bottom of the filter shell is provided with mounting hole, and the connecting plate is detachably arranged in the mounting hole.

[0006] Preferably, the pulse magnetic mechanism further includes left and right half-arc steel plates, the left and right half-arc steel plates are attached to the inner wall of the containing chamber, and the cylindrical iron core is fixedly connected between the left and right half-arc steel plates.

[0007] Preferably, the magnetic field generating unit is provided with several groups, and the several groups of the magnetic field generating unit are uniformly arranged between the left half-arc steel plate and the right half-arc steel plate.

[0008] Preferably, the left and right walls of the connecting plate are provided with clamping grooves, the inside of the bottom of the filter shell is provided with first mounting grooves corresponding to the clamping grooves on the left and right sides, the bottom end of the bottom of the filter shell is provided with a second mounting groove, the top of the second mounting groove is in communication with one side of the first mounting groove, two movable blocks are arranged in the first mounting grooves, clamping columns are fixedly installed on the side face of the two movable blocks close to each other, one end of the clamping column can penetrate the first mounting groove and is inserted into the clamping groove, and a threaded rod is screw-connected in the second mounting groove and abuts against the bottom of the movable block.

[0009] Preferably, the first mounting groove is fixedly installed with a mounting cylinder on the side face away from the second mounting groove, a spring and a piston column are arranged in the inner cavity of the mounting cylinder, one end of the spring is fixedly connected to the inner side of the mounting cylinder, the other end of the spring is fixedly connected to one end of the piston column, and the other end of the piston column is fixedly connected to the side wall of the movable block.

[0010] Preferably, the clamping grooves and the clamping columns are provided with three groups in the vertical direction and are aligned with each other, the clamping grooves on the left and right sides of the connecting plate are staggered, and the mounting cylinder is provided with two groups in the vertical direction and is arranged between the two clamping columns.

[0011] Preferably, the bottom of the threaded rod and the top of the movable block are provided in the same direction and are arranged in an inclined manner.

[0012] Preferably, the outer surface of the clamping column is provided with a layer of sealing gasket.

[0013] Preferably, the hollow fiber separation membrane is an RO membrane.

[0014] Preferably, the top of the filter shell is communicated with a water inlet pipe, the top of the mesh cylinder is communicated with a water outlet pipe, the bottom of the filter shell is fixedly sleeved with a collecting pipe provided with a valve, and the collecting pipe is communicated with a collecting groove.

[0015] The utility model discloses the beneficial effect is:

[0016] Through the strong magnetic field of the pulse magnetic mechanism, the metal ions in the separation membrane are pushed, so that the metal ions are stripped off, and the separated metal ions can be further collected and treated for reuse, realizing the resource utilization of electroplating waste liquid. The left half-arc steel plate and the right half-arc steel plate are arranged to establish a relatively uniform magnetic field area in the accommodating chamber, and the magnetic field intensity is adjusted through the pulse power.

[0017] 2、Through the setting card slot, movable block, card column and threaded rod, the net cylinder is convenient to disassemble and install, so that the separation membrane is convenient to clean or replace, and the stability and sealing performance of the net cylinder after installation are greatly improved, the connecting plate is installed into the installation hole, the threaded rod is screwed to rise, the threaded rod extrudes the movable block to move to one side, and then the card column enters the card slot of the connecting plate to form clamping, so that the net cylinder and the filter shell are quickly installed together, so that the stability and sealing performance of the net cylinder are greatly improved, the threaded rod is screwed to descend, under the elastic force of the spring, the piston column pushes the movable block to move, and the card column is withdrawn from the card slot, so that the net cylinder can be pulled out for cleaning or replacement, which is very convenient. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a sectional view of the filter shell of the utility model;

[0019] Fig. 2 It is a structure schematic view of the pulse magnetic mechanism of the utility model;

[0020] Fig. 3 It is a structure schematic view of the inside of the connecting plate of the utility model;

[0021] Fig. 4 It is a structure schematic view of the filter shell of the utility model.

[0022] In the drawing: 1, filter shell; 11, installation hole; 12, first installation slot; 13, second installation slot; 14, movable block; 15, card column; 16, threaded rod; 17, installation cylinder; 18, spring; 19, piston column; 2, net cylinder; 3, hollow fiber separation membrane; 4, connecting plate; 41, card slot; 5, containing chamber; 6, pulse magnetic mechanism; 61, cylindrical iron core; 62, magnetic field generating coil; 63, left half-arc steel plate; 64, right half-arc steel plate; 7, water inlet pipe; 8, water outlet pipe; 9, collecting pipe; 91, valve; 10, collecting groove. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0024] As Figs. 1 to 4The utility model provides a kind of RO membrane separation electroplating waste liquid treatment equipment, including filter shell 1, filter shell 1 inner chamber is provided with mesh tube 2, hollow fiber separation membrane 3 is fixedly sleeved on the outside of mesh tube 2, a plurality of filter holes are arranged on the outside of mesh tube 2, the top of filter shell 1 is connected with water inlet pipe 7, the top of mesh tube 2 is connected with water outlet pipe 8, by electroplating waste liquid from water inlet pipe 7 is introduced into filter shell 1, after being filtered and purified by hollow fiber separation membrane 3, it is discharged from water outlet pipe 8.The person skilled in the art can know that, after electroplating waste liquid passes through hollow fiber separation membrane 3, water goes out through membrane port, metal ions in electroplating waste liquid are intercepted by hollow fiber separation membrane 3, and the metal ions intercepted on hollow fiber separation membrane 3 are enriched, which not only easily blocks the separation membrane, but also is inconvenient to separate from the separation membrane for reuse.

[0025] In the embodiment, the bottom of mesh tube 2 is fixedly installed with connecting plate 4, the top of connecting plate 4 is provided with accommodating chamber 5 inside mesh tube 2, pulse magnetic mechanism 6 is arranged in accommodating chamber 5, pulse magnetic mechanism 6 includes at least one group of magnetic field generating units, each group of magnetic field generating units includes cylindrical iron core 61 and magnetic field generating coil 62, magnetic field generating coil 62 is wound on the outside of cylindrical iron core 61, the magnetic field generating coil 62 of each group of magnetic field generating units is connected to pulse power supply, and pulse magnetic field is generated in accommodating chamber 5, and hollow fiber separation membrane 3 is RO membrane.

[0026] After electroplating wastewater is separated and purified by hollow fiber separation membrane 3, metal ions and other impurities are adsorbed on the separation membrane, under the action of strong magnetic field generated by pulse magnetic mechanism 6, the metal ions in the stagnant separation membrane are pushed to move, so that the metal ions are separated from the membrane port of the separation membrane, which not only avoids the blockage of the membrane port caused by the accumulation of metal ions on the hollow fiber separation membrane 3, but also collects the separated metal ions for reuse; for example, copper ions, the person skilled in the art can know that copper is a non-magnetic material, but when the magnetic intensity reaches a certain threshold value, and under the action of other metal ions, it will significantly affect the movement of metal ions, the specific strength of the electromagnetic field that can drive the movement of copper ions depends on the type of electromagnetic field, environmental medium and operating frequency, etc., by combining coulomb force, lorentz force, medium conductivity and experimental parameters, the required electromagnetic field strength can be accurately predicted; pulse power supply can be selected from existing products, and by generating pulse magnetic field with a certain strength in accommodating chamber 5 by pulse power supply and magnetic field generating unit, the metal ions can be separated from the separation membrane.

[0027] And, in the embodiment, the pulse magnetic mechanism further comprises a left half-arc steel plate 63 and a right half-arc steel plate 64, the left half-arc steel plate 63 and the right half-arc steel plate 64 are attached to the inner wall of the accommodating chamber 5, the cylindrical iron core 61 is fixed between the left half-arc steel plate 63 and the right half-arc steel plate 64, and the magnetic field generating unit is provided in several groups and is uniformly arranged between the left half-arc steel plate 63 and the right half-arc steel plate 64.

[0028] Through the left half-arc steel plate 63 and the right half-arc steel plate 64, and the several groups of magnetic field generating units arranged therebetween, a relatively uniform magnetic field region can be established in the accommodating chamber, so that the copper ions on the periphery of the hollow fiber separation membrane 3 can be uniformly pushed by the magnetic force and separated from the impurities.

[0029] In addition, in the embodiment, the filter shell 1 is provided with a mounting hole 11 in the bottom, the connecting plate 4 is detachably arranged in the mounting hole 11, the left and right walls of the connecting plate 4 are provided with clamping grooves 41, the left and right sides of the inside of the bottom of the filter shell 1 are provided with first mounting grooves 12 corresponding to the clamping grooves 41, the bottom end of the bottom of the filter shell 1 is provided with a second mounting groove 13, the top of the second mounting groove 13 is in communication with one side of the first mounting groove 12, two first mounting grooves 12 are provided with movable blocks 14, the side surface of the two movable blocks 14 close to each other is fixedly provided with a clamping column 15, one end of the clamping column 15 can penetrate the first mounting groove 12 and be inserted into the clamping groove 41, the second mounting groove 13 is threadedly connected with a threaded rod 16, the bottom of the threaded rod 16 abuts against the bottom of the movable block 14, the bottom of the threaded rod 16 and the top of the movable block 14 are both arranged in the same direction in an inclined manner, and the outer surface of the clamping column 15 is provided with a layer of sealing gasket.

[0030] Through the clamping grooves 41, the movable blocks 14, the clamping column 15 and the threaded rod 16, the mesh cylinder 2 can be easily disassembled and installed, so that the separation membrane can be easily cleaned or replaced, and the stability and sealing performance of the mesh cylinder 2 after installation are greatly improved. By installing the connecting plate 4 into the mounting hole 11 and rotating the threaded rod 16 to make it rise, the threaded rod 16 extrudes the movable block 14 to move to one side, and then the clamping column 15 enters the clamping groove 41 of the connecting plate 4 to form clamping, so that the mesh cylinder 2 and the filter shell 1 are quickly installed together, thereby greatly improving the stability and sealing performance of the mesh cylinder 2.

[0031] In addition, the installation cylinder 17 is fixedly installed on the side of the inner cavity of the first mounting groove 12 away from the second mounting groove 13, the spring 18 and the piston column 19 are arranged in the inner cavity of the installation cylinder 17, one end of the spring 18 is fixedly connected with the inner side of the installation cylinder 17, the other end of the spring 18 is fixedly connected with one end of the piston column 19, and the other end of the piston column 19 is fixedly connected with the side wall of the movable block 14.

[0032] Through the installation of the mounting cylinder 17, the threaded rod 16 is screwed to be lowered, under the elastic force of the spring 17, the piston column 19 pushes the movable block 14 to move, so that the clamping column 15 is withdrawn from the clamping groove 41, that is, the net cylinder 2 can be pulled out for cleaning or replacement, so that the movable block 14 is more convenient to return to the original position, and the disassembly of the net cylinder 2 is more convenient.

[0033] Moreover, the clamping grooves 41 and the clamping columns 15 are provided with three groups in the vertical direction, and the clamping grooves 41 are aligned with the clamping columns 15, the clamping grooves 41 on the left and right sides of the connecting plate 4 are staggered, and the mounting cylinder 17 is provided with two groups in the vertical direction and is arranged between the two clamping columns 15.

[0034] The clamping grooves 41 and the clamping columns 15 are provided with three groups, and the clamping grooves 41 on the left and right sides of the connecting plate 4 are staggered, which can effectively improve the stability and airtightness of the connection between the connecting plate 4 and the filter shell 1.

[0035] In addition, the bottom of the filter shell 1 is fixedly sleeved with a collecting pipe 9 provided with a valve 91, and the collecting pipe 9 is communicated with a collecting groove 10.

[0036] The setting of the collecting pipe 9 and the collecting groove 10 facilitates the collection of copper ions separated from impurities, and the subsequent treatment process, such as electrolytic recovery, can realize the resource utilization of copper and reduce environmental pollution.

[0037] When it is needed to use, the connecting plate 4 is installed into the mounting hole 11, the threaded rod 16 is screwed to be raised, the movable block 14 is pressed to move to one side by the threaded rod 16, and then the clamping column 15 enters the clamping groove 41 of the connecting plate 4 to form clamping, so that the net cylinder 2 and the filter shell 1 are quickly installed together; the electroplating waste liquid is introduced into the filter shell 1 from the water inlet pipe 7, and is filtered and purified through the hollow fiber separation membrane 3 and is discharged from the water outlet pipe 8, the metal ions and impurities in the electroplating wastewater are adsorbed on the separation membrane after being separated and purified by the hollow fiber separation membrane 3, the pulse power supply and the magnetic field generating unit generate a certain intensity of pulse magnetic field in the containing chamber 5, the metal ions in the lag flow separation membrane are driven to move, so that the metal ions are stripped from the separation membrane, and the stripped metal ions are enriched through the collecting pipe 9 and the collecting groove 10 for subsequent treatment; when it is needed to replace or clean the separation membrane, the threaded rod 16 is screwed to be lowered, under the elastic force of the spring 17, the piston column 19 pushes the movable block 14 to move, so that the clamping column 15 is withdrawn from the clamping groove 41, that is, the net cylinder 2 can be pulled out for cleaning or replacement.

[0038] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A RO membrane separation electroplating effluent treatment apparatus comprising a filter housing (1), characterized in that: The filter shell (1) is provided with a mesh tube (2), the outer side of the mesh tube (2) is fixedly sleeved with a hollow fiber separation membrane (3), a plurality of filter holes are formed in the outer side of the mesh tube (2), the bottom of the mesh tube (2) is fixedly installed with a connecting plate (4), the top end of the connecting plate (4) is provided with a containing chamber (5) inside the mesh tube (2), the containing chamber (5) is provided with a pulse magnetic mechanism (6), the pulse magnetic mechanism (6) comprises at least one group of magnetic field generating units, each group of the magnetic field generating units comprises a cylindrical iron core (61) and a magnetic field generating coil (62), the magnetic field generating coil (62) is wound on the outer side of the cylindrical iron core (61), the magnetic field generating coil (62) of each group of the magnetic field generating units is connected to a pulse power supply, and a pulse magnetic field is generated in the containing chamber (5), and the bottom of the filter shell (1) is provided with a mounting hole (11), and the connecting plate (4) is detachably arranged in the mounting hole (11).

2. The RO membrane separation electroplating waste liquid treatment equipment according to claim 1, characterized in that: The pulse magnetic mechanism (6) further comprises a left half-arc steel plate (63) and a right half-arc steel plate (64), the left half-arc steel plate (63) and the right half-arc steel plate (64) are attached to the inner wall of the containing chamber, and the cylindrical iron core (61) is fixedly connected between the left half-arc steel plate (63) and the right half-arc steel plate (64).

3. The RO membrane separation electroplating waste liquid treatment equipment according to claim 2, characterized in that: The magnetic field generating unit is provided with a plurality of groups, and the plurality of groups of the magnetic field generating units are uniformly arranged between the left half-arc steel plate (63) and the right half-arc steel plate (64).

4. The RO membrane separation electroplating waste liquid treatment equipment according to claim 1, characterized in that: The left and right walls of the connecting plate (4) are provided with clamping grooves (41), the left and right sides of the bottom of the filter shell (1) are provided with first mounting grooves (12) corresponding to the clamping grooves (41), the bottom end of the bottom of the filter shell (1) is provided with a second mounting groove (13), the top of the second mounting groove (13) is in communication with one side of the first mounting groove (12), the first mounting grooves (12) are provided with movable blocks (14), the clamping columns (15) are fixedly installed on the side face of the movable blocks (14) close to each other, one end of the clamping column (15) can penetrate the first mounting groove (12) and is inserted into the clamping groove (41), and the second mounting groove (13) is threadedly connected with a threaded rod (16), and the bottom of the threaded rod (16) abuts against the bottom of the movable block (14).

5. The RO membrane separation electroplating waste liquid treatment equipment according to claim 4, characterized in that: The first mounting groove (12) is provided with a mounting cylinder (17) fixedly installed on the side face away from the second mounting groove (13), the mounting cylinder (17) is provided with a spring (18) and a piston column (19) in the inner cavity, one end of the spring (18) is fixedly connected with the inner side of the mounting cylinder (17), the other end of the spring (18) is fixedly connected with one end of the piston column (19), and the other end of the piston column (19) is fixedly connected with the side wall of the movable block (14).

6. The RO membrane separation electroplating waste liquid treatment equipment according to claim 5, characterized in that: The card slot (41) and the card column (15) are provided with three groups in the vertical direction, the card slot (41) is aligned with the card column (15), the card slot (41) on the left and right sides of the connecting plate (4) is staggered, the mounting cylinder (17) is provided with two groups in the vertical direction and is arranged between two card columns (15).

7. The RO membrane separation electroplating waste liquid treatment equipment according to claim 6, characterized in that: The bottom of the threaded rod (16) and the top of the movable block (14) are provided with the same direction of inclination.

8. The RO membrane separation electroplating waste liquid treatment equipment according to claim 7, characterized in that: The outer surface of the card column (15) is provided with a layer of sealing pad.

9. The RO membrane separation electroplating waste liquid treatment equipment according to claim 1, characterized in that: The hollow fiber separation membrane (3) is a RO membrane.

10. The RO membrane separation electroplating waste liquid treatment equipment according to claim 1, characterized in that: The top of the filter shell (1) is communicated with a water inlet pipe (7), the top of the net cylinder (2) is communicated with a water outlet pipe (8), the bottom of the filter shell (1) is fixedly sleeved with a collecting pipe (9) with a valve (91), and the collecting pipe (9) is communicated with a collecting groove (10).

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