CN114455765B

CN114455765B - Electroplating liquid membrane separation and recovery technical equipment and recovery method thereof

Info

Publication number: CN114455765B
Application number: CN202210130008.4A
Authority: CN
Inventors: 欧敏燕; 何琼; 王艳龙
Original assignee: Yixing Zhongfa Water Treatment Environmental Protection Equipment Co ltd
Current assignee: Yixing Zhongfa Water Treatment Environmental Protection Equipment Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2023-04-14
Anticipated expiration: 2042-02-11
Also published as: CN114455765A

Abstract

The utility model relates to an electroplating liquid membrane separation retrieves technical equipment and recovery method thereof, including the preliminary treatment mechanism that is used for carrying out the preliminary treatment to the plating solution, the bottom of preliminary treatment mechanism is equipped with discharge mechanism, discharge mechanism is including being used for plating solution quantitative discharge's quantitative structure and being used for electroplating mud exhaust row's mud structure, discharge mechanism's below is equipped with membrane separation mechanism, be equipped with the actuating mechanism who is used for driving preliminary treatment mechanism and membrane separation mechanism operation between membrane separation mechanism and the preliminary treatment mechanism, through the cylinder body that sets up, realized the moisture extraction part with in the plating solution, improve the concentration of plating solution, the subsequent membrane separation of being convenient for, the water of extracting can directly utilize, has practiced thrift the water resource.

Description

Electroplating liquid membrane separation and recovery technical equipment and recovery method thereof

Technical Field

The invention relates to electroplating liquid membrane separation and recovery technical equipment and a recovery method thereof, belonging to the field of multistage treatment of water.

Background

The membrane has different permeability to different substances, and the membrane separation technology is a method for separating a mixture by utilizing the characteristic of the membrane under a certain mass transfer driving force. The membrane separation technology used for the advanced treatment of the electroplating wastewater mainly comprises Microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and Reverse Osmosis (RO). MF and UF are often used as pretreatments for NF and RO; UF can separate macromolecular organic matters, colloid and suspended solids; NF can realize simultaneous desalination and concentration; RO can remove soluble metal salt, organic matters, colloidal particles and the like and intercept all ions; the membrane separation technology has the advantages that: the method can remove residual organic matters in water, reduce chromaticity, remove inorganic salts, prevent the accumulation of the inorganic salts in a system, and is a technology with great prospect in the advanced treatment of electroplating wastewater.

At present, the electroplating water separation process mainly comprises pretreatment, primary separation and secondary separation, but the pretreatment, the primary separation and the secondary separation are required to be carried out separately, each step requires a large place, more water resources are required to be used in the process of membrane separation, in addition, the treatment of the electroplating water is batch treatment (membrane separation is carried out after a water tank is filled with the electroplating water, and then concentrated solution is discharged after the whole membrane separation is finished), so more time can be wasted in the treatment process.

Therefore, we improve the technical proposal and the technical proposal of the separation and recovery device of the electroplating liquid film and the recovery method thereof.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the equipment of pretreatment, primary separation and secondary separation occupies larger space, more water resources are needed in the process of membrane separation, the efficiency of the recovery process is low, and the time consumption is long.

(II) technical scheme

In order to achieve the purpose, the invention provides electroplating liquid film separation and recovery technical equipment, which comprises a pretreatment mechanism for pretreating electroplating solution, wherein a discharge mechanism is arranged at the bottom of the pretreatment mechanism, the discharge mechanism comprises a quantitative structure for quantitatively discharging the electroplating solution and a sludge discharge structure for discharging the electroplating sludge, a film separation mechanism is arranged below the discharge mechanism, and a driving mechanism for driving the pretreatment mechanism and the film separation mechanism to operate is arranged between the film separation mechanism and the pretreatment mechanism;

the membrane separation mechanism is including being used for the plating solution to carry out a plurality of one-level separating mechanism, a plurality of that separate and output mechanism and circulation recovery mechanism, the circulation is retrieved the mechanism and is included second grade separating mechanism, automatic drainage mechanism and circulation mechanism, second grade separating mechanism is used for the second grade separation of one-level permeate liquid, automatic drainage mechanism is used for the automatic discharge of concentrated second grade permeate liquid, circulation mechanism is used for the filtration of second grade permeate liquid and carries the water after will filtering to one-level separating mechanism and carry out cyclic utilization.

Wherein, one-level separating mechanism includes the cylinder body No. one, the inside of cylinder body is equipped with piston assembly, piston assembly's top is equipped with the drive mechanism who is used for driving a cylinder body No. one, piston assembly's below is equipped with the waterproof ventilated membrane with a cylinder body sliding connection, and waterproof ventilated membrane is used for separately water and plating solution, the below of waterproof ventilated membrane is equipped with barrier film mechanism, be equipped with the one-level membrane in the barrier film mechanism, barrier film mechanism's bottom is equipped with a plurality of down tube and reset spring, the down tube is used for controlling barrier film mechanism, a plurality of fixed mounting bracket that is equipped with between the cylinder body.

Wherein, preliminary treatment mechanism includes the agitator and rotates the filter vat of locating the inside bottom of agitator, the outside of filter vat is equipped with the preliminary treatment membrane, the fixed a plurality of blade that is equipped with of inner wall of agitator, the blade slope sets up, the bottom of agitator is rotated and is equipped with the fixed plate, the fixed spliced pole that is equipped with in middle part on fixed plate top, the top of spliced pole and the bottom fixed connection of filter vat.

Wherein, the quantitative structure is used for taking out a certain volume of electroplating solution from the filter vat.

Wherein, arrange the mud structure including set up the ring channel on the agitator and set up in the fixed plate bottom and with the corresponding second grade blowhole of ring channel, the one-level blowhole has been seted up to the bottom inner wall of ring channel, the inside of ring channel is equipped with clear mud ring, clear mud ring comprises two arcs baffle, two arc leptoprosopes and two arc filter screens, the arc filter screen sets up for the slope, the entering groove that is used for electroplating mud to pass through is seted up in the outside of arc leptoprosopes.

The transmission mechanism drives the piston assembly to reciprocate up and down through rotation of the stirring barrel.

The transmission mechanism comprises a first guide groove arranged outside the stirring barrel, the first guide groove comprises a horizontal guide groove and a protruding guide groove arranged on one side of the horizontal guide groove, a guide wheel is arranged inside the first guide groove, and an L-shaped piston rod is arranged on one side of the guide wheel in a rotating mode.

The piston assembly comprises a top piston arranged at the bottom end of the transmission mechanism, a plurality of sliding rods are inserted into the bottom of the top piston, a bottom piston is arranged at the bottom end of each sliding rod, an adaptive spring is sleeved on each sliding rod, and one sliding rod is of a hollow structure and is communicated with the bottom of the bottom piston.

Wherein, barrier film mechanism includes a top baffle and rotates and connects in the end commentaries on classics board of top baffle bottom, a plurality of scallop hole has been seted up to the top equidistant of top baffle, a plurality of scallop hole staggered No. two scallop holes in a scallop hole has been seted up at the top of end commentaries on classics board, the circumference side of end commentaries on classics board bottom is articulated with the top of a plurality of tilting lever, the bottom inner wall of bottom and a cylinder body of tilting lever is articulated.

A method for separating and recovering a plating liquid film comprises the following steps:

step one, driving: driving the mixing barrel, the rotary table and the transmission rod to rotate;

step two, pretreatment: the electroplating solution is added into the stirring barrel, the stirring barrel rotates to enable the electroplating solution to enter the filtering barrel, and the pretreatment membrane on the surface of the filtering barrel filters substances such as metal scraps in the electroplating solution;

step three, quantitatively discharging liquid: in the rotation process of the stirring barrel, when the position of the secondary liquid discharge hole corresponds to the position of the primary liquid discharge hole and the position of the primary liquid discharge pipe, electroplating liquid is added into the liquid discharge pipe, and when the positions are staggered, the electroplating liquid cannot enter the liquid discharge pipe, so that quantitative addition is realized;

step four, discharging the electroplating sludge: electroplating mud enters the annular groove from the groove beside the arc-shaped narrow plate, the stirring barrel drives the primary sewage draining hole to rotate when rotating, electroplating mud in the annular groove is squeezed out of electroplating liquid by the inclined arc-shaped filter screen, the arc-shaped partition plate blocks the primary sewage draining hole when rotating to the position of the primary sewage draining hole, and the secondary sewage draining hole is communicated with the primary sewage draining hole to drain the electroplating mud;

step five, primary treatment: when the piston assembly moves upwards, the first piston structure sucks air, electroplating liquid in the liquid discharge pipe is sucked into the first cylinder body, the air pressure in the first cylinder body is reduced to evaporate water in the electroplating liquid, when the piston assembly moves downwards, the first piston structure exhausts air, the water vapor is liquefied and discharged to the second-stage separation mechanism, the piston assembly extrudes the electroplating liquid and the isolating membrane mechanism, the isolating membrane mechanism is opened after moving downwards, the electroplating liquid is subjected to membrane separation through the first-stage membrane on the isolating membrane mechanism, and the concentrated liquid is extracted by the extraction mechanism;

step six, secondary treatment: the first-stage permeate liquid passing through the bottom of the isolation membrane mechanism enters the water storage frame, enters the liquid storage tank after being filtered by the second-stage membrane, and is discharged into the bottom of the isolation membrane mechanism for filtering after the cations in the filtrate are filtered by the circulating mechanism;

step seven, automatic discharging: when the liquid level in the water storage frame is higher than the top of the water pipeline, the liquid in the water storage frame is discharged.

(III) advantageous effects

The invention provides electroplating liquid membrane separation and recovery technical equipment and a recovery method thereof, which have the beneficial effects that:

1. through the first cylinder body, the part of water in the electroplating solution is extracted, the concentration of the electroplating solution is improved, the subsequent membrane separation is facilitated, the extracted water can be directly utilized, and the water resource is saved;

2. through the matching use of the first cylinder body and the circulating recovery mechanism, the electroplating solution is treated in batches, and the electroplating solution can be continuously treated by the first cylinder bodies, so that the electroplating waste liquid can be continuously treated, the treated electroplating solution can be continuously generated, the treatment period of the electroplating solution is shortened, and the recovery efficiency is improved;

3. through the arranged circulating recovery mechanism, the water which can be extracted from the electroplating waste liquid in the first cylinder body is utilized to carry out secondary separation and then is recycled, so that the water is not required to be added after a small amount of water is added when the equipment starts to operate, and the water resource is greatly saved;

4. the equipment has a compact structure, utilizes smaller space, and integrates all the steps together through the matching of parts required by various processes, thereby improving the space utilization rate and saving the production cost;

5. through the arranged sludge discharging structure, electroplating sludge in the annular groove is extruded by the inclined arc-shaped filter screen to form electroplating solution, then the arc-shaped partition plate blocks the primary sewage discharge hole when rotating to the position of the primary sewage discharge hole, and the electroplating sludge is discharged after the secondary sewage discharge hole is communicated with the primary sewage discharge hole, so that the automatic discharge of the electroplating sludge is realized, and the electroplating sludge does not need to be manually fished out;

6. through the arranged automatic liquid discharging mechanism, because the water can be extracted from the electroplating liquid, the liquid in the water storage frame can be gradually increased, the increased amount is closely related to the amount of the electroplating liquid to be treated, when the concentration of the liquid in the water storage frame reaches a certain value, the liquid level also reaches a certain position, and at the moment, the liquid in the water storage frame is discharged by utilizing the siphon effect, so that the liquid in the water storage frame can be automatically discharged when reaching a certain value;

7. through the piston assembly who sets up, piston assembly makes the bottom piston be close to the top piston when receiving pressure through slide bar and adaptation spring when realizing basic piston function to whether there are two kinds of circumstances of plating solution in can piston assembly adaptation cylinder body one number.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an apparatus for separating and recovering a plating liquid film according to the present application;

FIG. 2 is a schematic structural diagram of a driving mechanism in the electroplating liquid membrane separation and recovery technical apparatus provided by the present application;

FIG. 3 is a schematic cross-sectional view of an apparatus for separating and recovering a plating liquid film according to the present application;

FIG. 4 is an enlarged view of A in FIG. 3;

FIG. 5 is a schematic structural diagram of a stirring barrel in the electroplating liquid membrane separation and recovery technical apparatus provided in the present application;

FIG. 6 is a schematic structural diagram of a dirt filtering structure in the electroplating liquid membrane separation and recovery technical equipment provided by the present application;

FIG. 7 is a schematic structural diagram of a primary separation mechanism in the electroplating liquid membrane separation and recovery technical apparatus provided by the present application;

FIG. 8 is an enlarged view of B of FIG. 7;

FIG. 9 is a schematic structural diagram of a piston structure I and a conversion assembly in the electroplating liquid membrane separation and recovery technical equipment provided by the application;

FIG. 10 is a schematic view of a disassembled structure of a conversion assembly and a piston structure in the electroplating liquid film separation and recovery technical equipment provided by the application;

FIG. 11 is a schematic structural diagram of a separation membrane mechanism in an apparatus for separation and recovery of an electroplating liquid membrane according to the present application;

FIG. 12 is a schematic bottom view of a turntable in the electroplating solution membrane separation and recovery apparatus provided in the present application;

FIG. 13 is a schematic structural diagram of an automatic liquid discharge mechanism in the electroplating liquid membrane separation and recovery apparatus provided in the present application;

FIG. 14 is a schematic structural diagram of a circulating mechanism in the electroplating liquid film separation and recovery technical equipment provided by the present application.

1. A pretreatment mechanism; 101. a stirring barrel; 102. a filter vat; 103. a blade; 104. a fixing plate; 2. a primary separation mechanism; 21. a first cylinder body; 22. a transmission mechanism; 221. an L-shaped piston rod; 222. a horizontal guide groove; 223. a raised guide groove; 23. a piston assembly; 231. a top piston; 232. a slide bar; 233. a compliant spring; 234. a bottom piston; 24. a waterproof breathable film; 25. an isolation diaphragm mechanism; 251. a top baffle; 252. a first sector hole; 253. a bottom rotating plate; 254. a second fan-shaped hole; 26. an inclined lever; 27. a return spring; 3. an assist and output mechanism; 31. a turntable; 32. a piston structure I; 321. a second cylinder body; 322. a first check valve; 323. a second one-way valve; 324. a toothed ring; 325. a first piston rod; 326. a rolling wheel; 33. a conversion component; 331. rotating the disc; 332. an air intake duct; 333. an air outlet pipe; 334. a liquid inlet pipeline; 335. a liquid outlet pipeline; 34. an arc-shaped slot; 35. a small concave groove; 36. a large concave groove; 37. a first rack; 38. a second rack; 4. a drive mechanism; 41. a drive motor; 42. a driving gear; 43. a driven wheel I; 44. a connecting rod; 45. a second driven wheel; 46. a transmission gear; 5. a recycling mechanism; 51. a secondary separation mechanism; 511. a liquid storage tank; 512. a secondary membrane; 513. a water purifying pipe; 52. an automatic drainage mechanism; 521. a water storage frame; 522. a water conduit; 523. an isolation cover; 524. a permeate line; 53. a circulating mechanism; 531. a piston structure II; 532. a communicating pipe; 533. a water outlet pipe; 534. an ionic liquid conduit; 54. a cam mechanism; 541. a sun wheel; 542. a planet wheel; 6. a discharge mechanism; 61. a primary drain hole; 62. a secondary liquid discharge hole; 63. a liquid discharge pipe; 64. a first-stage sewage draining hole; 65. a secondary sewage draining hole; 66. clearing mud and surrounding; 661. an arc-shaped partition plate; 662. an arc-shaped narrow plate; 663. an arc-shaped filter screen; 67. a liquid pumping pipe; 7. a mounting frame; 8. and a transmission rod.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1:

as shown in fig. 1, fig. 2, fig. 3 and fig. 7, the present embodiment provides an electroplating liquid film separation and recovery technical apparatus, which includes a pretreatment mechanism 1 for pretreating electroplating solution, a discharge mechanism 6 is provided at the bottom of the pretreatment mechanism 1, the discharge mechanism 6 includes a quantitative structure for quantitatively discharging electroplating solution and a sludge discharge structure for discharging electroplating sludge, a film separation mechanism is provided below the discharge mechanism 6, and a driving mechanism 4 for driving the pretreatment mechanism 1 and the film separation mechanism to operate is provided between the film separation mechanism and the pretreatment mechanism 1;

the membrane separation mechanism comprises a plurality of primary separation mechanisms 2 for separating the electroplating solution, a plurality of auxiliary and output mechanisms 3 and a circulation recovery mechanism 5, the circulation recovery mechanism 5 comprises a secondary separation mechanism 51, an automatic liquid drainage mechanism 52 and a circulation mechanism 53, the secondary separation mechanism 51 is used for secondary separation of primary permeating liquid, the automatic liquid drainage mechanism 52 is used for automatic discharge of concentrated secondary permeating liquid, and the circulation mechanism 53 is used for filtering the secondary permeating liquid and conveying the filtered water to the primary separation mechanisms 2 for recycling.

Example 2:

the scheme of example 1 is further described below in conjunction with specific working modes, which are described in detail below:

as shown in fig. 3 and 7, as a preferred embodiment, in addition to the above-mentioned embodiment, the primary separation mechanism 2 further includes a primary cylinder 21, a piston assembly 23 is provided inside the primary cylinder 21, a transmission mechanism 22 for driving the primary cylinder 21 is provided on the top of the piston assembly 23, a waterproof breathable membrane 24 slidably connected to the primary cylinder 21 is provided below the piston assembly 23, the waterproof breathable membrane 24 is used for separating water from the plating solution, an isolation membrane mechanism 25 is provided below the waterproof breathable membrane 24, a primary membrane is provided on the isolation membrane mechanism 25, the isolation membrane mechanism 25 can be opened by a tilting rod 26 when moving downward, a plurality of tilting rods 26 and a return spring 27 are provided at the bottom of the isolation membrane mechanism 25, the tilting rods 26 are used for controlling the isolation membrane mechanism 25, and the mounting frame 7 is fixedly provided between the plurality of primary cylinders 21.

As shown in fig. 3, fig. 4 and fig. 5, in addition to the above-mentioned embodiments, the pretreatment mechanism 1 further includes an agitator 101 and a filter tank 102 rotatably disposed at the bottom end inside the agitator 101, a pretreatment membrane is disposed outside the filter tank 102, the process of the plating solution entering the filter tank 102 is filtered by the pretreatment membrane, a plurality of blades 103 are fixedly disposed on the inner wall of the agitator 101, the blades 103 are obliquely disposed, the plating solution is added into the agitator 101, the agitator 101 rotates to drive the blades 103 to rotate, the plating solution is squeezed into the filter tank 102, a fixing plate 104 is rotatably disposed at the bottom of the agitator 101, a connecting column is fixedly disposed at the middle of the top end of the fixing plate 104, and the top of the connecting column is fixedly connected with the bottom end of the filter tank 102.

As shown in fig. 3 and 4, as a preferred embodiment, in addition to the above-mentioned embodiment, the quantitative structure is used for extracting a certain volume of the plating solution from the filter tank 102, and comprises a plurality of primary drain holes 61, a plurality of secondary drain holes 62 and a plurality of drain pipes 63, wherein the plurality of primary drain holes 61 open on the circumferential side of the bottom end of the filter tank 102, the secondary drain holes 62 open on the bottom end of the agitator 101 and correspond to one of the primary drain holes 61, the plurality of drain pipes 63 are inserted into the drain pipe 63 at the bottom end of the fixing plate 104, the plurality of drain pipes 63 correspond to the primary drain holes 61, during the rotation of the agitator 101, when the secondary drain holes 62 correspond to the primary drain holes 61 and the drain pipes 63, the liquid in the filter tank 102 enters the drain pipes 63, when the secondary drain holes 62 are staggered from the primary drain holes 61 and the drain pipes 63, the liquid in the filter tank 102 cannot enter the drain pipes 63, the quantitative addition is realized, the bottom ends of the drain pipes 63 are communicated with each other, and the drain pipes 67 and the drain pipes 21 are communicated with each other through the water-proof membrane 21.

As shown in fig. 4 and fig. 6, as a preferred embodiment, on the basis of the above manner, further, the sludge discharge structure includes an annular groove provided on the stirring barrel 101 and a secondary sewage discharge hole 65 provided at the bottom end of the fixing plate 104 and corresponding to the annular groove, a primary sewage discharge hole 64 is provided on the inner wall of the bottom end of the annular groove, the electroplating sludge enters the annular groove from an entry groove beside the arc-shaped narrow plate 662, the stirring barrel 101 drives the primary sewage discharge hole 64 to rotate when rotating, a sludge cleaning ring 66 is provided inside the annular groove, the sludge cleaning ring 66 is composed of two arc-shaped partition plates 661, two arc-shaped narrow plates 662 and two arc-shaped filter screens 663, the arc-shaped filter screens 663 are arranged in an inclined manner, the entry groove for the electroplating sludge to pass through is provided on the outer side of the arc-shaped narrow plates 662, the electroplating sludge enters the annular groove through the entry groove, the electroplating sludge inside the annular groove is squeezed out of the electroplating solution by the inclined arc-shaped filter screens 663, then the arc-shaped partition plates 661 blocks the primary sewage discharge hole 64, and the secondary sewage discharge hole 65 is communicated with the primary sewage discharge hole 64 to discharge the electroplating sludge.

As shown in fig. 2, 5 and 7, as a preferred embodiment, based on the above-mentioned manner, further, the transmission mechanism 22 drives the piston assembly 23 to reciprocate up and down through the rotation of the stirring barrel 101, the transmission mechanism 22 includes a first guide groove opened outside the stirring barrel 101, the first guide groove is composed of a horizontal guide groove 222 and a convex guide groove 223 disposed at one side of the horizontal guide groove 222, a guide wheel is disposed inside the first guide groove, an L-shaped piston rod 221 is rotatably disposed at one side of the guide wheel, the L-shaped piston rod 221 is driven to move up and down through the first guide groove when the stirring barrel 101 rotates, and the L-shaped piston rod 221 drives the piston assembly 23 to move up and down.

As shown in fig. 7 and 8, as a preferred embodiment, based on the above manner, further, the piston assembly 23 includes a top piston 231 fixedly connected to the bottom end of the L-shaped piston rod 221, a plurality of sliding rods 232 are inserted into the bottom of the top piston 231, a bottom piston 234 is fixedly disposed at the bottom end of the sliding rods 232, when liquid is present in the first cylinder 21, the bottom piston 234 moves downward and is close to the top piston 231 under pressure, an adaptive spring 233 is sleeved on the sliding rod 232, the adaptive spring 233 is used for resetting the bottom piston 234, one of the sliding rods 232 is a hollow structure and is communicated with the bottom of the bottom piston 234, and the hollow structure facilitates the air intake duct 332 to convey air or evacuate air into the first cylinder 21.

As shown in fig. 7 and 11, as a preferred embodiment, in addition to the above-mentioned mode, the isolating membrane mechanism 25 includes a top baffle 251 and a bottom rotating plate 253 rotatably connected to the bottom end of the top baffle 251, the top of the top baffle 251 is provided with a plurality of first fan-shaped holes 252 at equal intervals, the top of the bottom rotating plate 253 is provided with a plurality of second fan-shaped holes 254 staggered with the first fan-shaped holes 252, when the piston assembly 23 extrudes the electroplating solution, the electroplating solution pushes the isolating membrane mechanism 25 to move downwards, the circumference of the bottom end of the bottom rotating plate 253 is hinged to the tops of the plurality of inclined rods 26, the inclined rods 26 rotate to drive the bottom rotating plate 253 to rotate, so that the first fan-shaped holes 252 and the second fan-shaped holes 254 are overlapped to open, the liquid can pass through the isolating membrane mechanism 25, and the bottoms of the inclined rods 26 are hinged to the inner wall of the bottom end of the first cylinder 21.

As shown in fig. 1, 2, 3, 9 and 12, as a preferred embodiment, based on the above-mentioned manner, the auxiliary and output mechanism 3 further includes an extraction mechanism and a conversion mechanism, the extraction mechanism realizes four functions of extracting gas inside the first cylinder 21, returning the extracted gas to the first cylinder 21, extracting the plating solution in the first cylinder 21 and discharging the plating solution, the extraction mechanism includes a first piston structure 32 rotatably connected to the top circumferential side of the mounting frame 7, a rotary disc 31 driven by a driving mechanism 4 is provided on the top of the first piston structure 32, a second guide groove is provided on the bottom of the rotary disc 31, the second guide groove is composed of an arc groove 34, a small groove 35 and a large concave groove 36 close to one side of the small concave groove 35, a first rack 37 fixedly connected to the rotary disc 31 is provided on the outside of the first guide groove 36 and the small concave groove 35, a second rack 38 fixedly connected to the rotary disc 31 is provided on the side of the large concave groove 36 away from the small concave groove 35 and on the outside of the second guide groove, a second rack 325 is provided on the cylinder 321, a second piston rod 325 is provided on the inside of the second piston rod 326, and a second piston rod 326 is provided on the second piston rod 326 when the second piston rod 325, the cylinder 321 moves back and forth through the cylinder 321, the cylinder 321.

As shown in fig. 1, 2, 3, 9, 10 and 12, as a preferred embodiment, on the basis of the above manner, further, the switching mechanism is used for switching four functions of the extraction mechanism, the switching mechanism includes a toothed ring 324 fixedly sleeved on the second cylinder 321, a first check valve 322, a second check valve 323 and a switching assembly 33 which are arranged at the end part of the second cylinder 321, the switching assembly 33 includes a rotating disc 331 which is rotatably connected with the second cylinder 321, an air inlet pipeline 332, an air outlet pipeline 333, an air inlet pipeline 334 and a liquid outlet pipeline 335 are inserted into the circumferential side of the rotating disc 331 far away from the second cylinder 321, the air inlet pipeline 332 and the liquid inlet pipeline 334 are symmetrically arranged, the air outlet pipeline 333 and the liquid outlet pipeline 335 are symmetrically arranged, the air inlet pipeline 332 and the air outlet pipeline 333 correspond to the first check valve 322 and the second check valve 323 respectively, when the second piston is far away from the switching assembly 33, the second cylinder 321 draws the gas inside the first cylinder 21 through the gas inlet pipe 332, and when the second piston approaches the conversion assembly 33, the second cylinder 321 injects gas into the first cylinder 21 through the gas outlet pipe 333 and the gas inlet pipe 332, and when the first rack 37 passes through the ring gear 324, the second cylinder 321 rotates 180 degrees, when the second piston is far away from the conversion assembly 33, the second cylinder 321 pumps electroplating solution in the first cylinder 21 through the liquid inlet pipeline 334, when the second piston is close to the conversion assembly 33, the second cylinder 321 discharges the electroplating solution through the liquid outlet pipeline 335, the end of the air inlet pipeline 332 is communicated with the sliding rod 232 which is in the adjacent first cylinder 21 and is in a hollow structure, the end of the air outlet pipeline 333 is communicated with the air inlet pipeline 332, and the end of the liquid inlet pipeline 334 is communicated with the other side of the area, located between the waterproof breathable film 24 and the isolating film mechanism 25, of the first cylinder 21.

Example 3:

the schemes of example 1 and example 2 are further described below in conjunction with specific working examples, which are described in detail below:

as shown in fig. 2 and fig. 3, as a preferred embodiment, on the basis of the above manner, further, the driving mechanism 4 includes a driving motor 41, a driving gear 42 is fixedly disposed on a rotating shaft of the driving motor 41, a transmission gear 46 fixedly connected to the rotating disc 31 is engaged with one side of the driving gear 42, a connecting rod 44 is fixedly disposed in a middle portion of a top end of the first driven wheel 43, a second driven wheel 45 is fixedly disposed at a top end of the connecting rod 44 through a fixing plate 104, a transmission gear is disposed on a circumferential side of a bottom of the stirring barrel 101, the second driven wheel 45 is engaged with the stirring barrel 101 through the transmission gear, the driving motor 41 drives the first driven wheel 43 and the second driven wheel 45 to rotate through the driving gear 42, the second driven wheel 45 drives the stirring barrel 101 to rotate, the first driven wheel 43 drives the rotating disc 31 to rotate through the transmission gear 46, a transmission rod 8 is fixedly disposed in a middle portion of a bottom end of the rotating disc 31, and the rotating disc 31 drives the transmission rod 8 to rotate.

As shown in fig. 2, 3 and 13, as a preferred embodiment, in addition to the above-mentioned mode, the circulation recovery mechanism 5 further includes a liquid storage tank 511, a secondary membrane 512 is provided at the bottom of the circumferential side of the liquid storage tank 511, a clear water pipe 513 connected to one side of the first cylinder 21 above the waterproof and breathable membrane 24 is provided at the top of the liquid storage tank 511, water liquefied by steam enters the liquid storage tank 511 through the clear water pipe 513, the automatic drainage mechanism 52 includes a water storage frame 521 provided outside the secondary separation mechanism 51, liquid inside the water storage frame 521 is filtered through the secondary membrane 512 when entering the liquid storage tank 511, a plurality of water pipes 522 are inserted into the bottom end of the inside of the water storage frame 521, a support frame is provided at the top of the water pipes 522, an isolation cover 523 is provided at the top of the support frame, when the liquid level in the water storage frame 521 is higher than the top of the water pipes 522, liquid inside the water storage frame 521 is automatically drained by siphon effect, a plurality of permeate liquid pipes 524 are provided at the top of the outside of the water storage frame 521, an end of the permeate pipe 524 is connected to one-way liquid pipe 524 at one side of the cylinder 21 and the isolation membrane 25.

As shown in fig. 2, 3 and 14, as a preferred embodiment, on the basis of the above-mentioned manner, further, a cam mechanism 54 located in the middle of the bottom end of the mounting frame 7 is disposed on the transmission rod 8, the cam mechanism 54 includes a sun gear 541 fixedly sleeved on the transmission rod 8, a plurality of planet gears 542 are engaged with the circumferential side of the sun gear 541, the circulation mechanism 53 includes a plurality of second piston structures 531 fixedly connected to the bottom end of the mounting frame 7, an ionic liquid conduit 534 is disposed on the side of the second piston structures 531 in a communicating manner, the end of the ionic liquid conduit 534 passes through the second separation mechanism 51 and extends to the bottom of the second separation mechanism 51, the plurality of second piston structures 531 are equidistantly distributed outside the plurality of planet gears 542, the second piston rods on the second piston structures 531 are hinged to the side of the bottom ends of the adjacent planet gears 542, the planet gears 542 drive the pistons inside the second piston structures 531 to reciprocate through the second piston rods, the ends of the plurality of the second piston structures 531 are communicated through a fourth check valve and provided with a same communication pipe 532, a third-stage membrane is disposed at the bottom end of a cylinder block 532, the cylinder block is provided with a water outlet pipe 533 disposed at the bottom of the first piston structure 21, and a water outlet pipe 53 is also connected to the first separation mechanism at the side of the first separation mechanism 21.

Example 4:

the schemes of example 1, example 2 and example 3 are further described below in conjunction with specific working modes, which are described in detail below:

step one, driving: the driving motor 41 drives the first driven wheel 43 and the second driven wheel 45 to rotate through the driving gear 42, the second driven wheel 45 drives the stirring barrel 101 to rotate, and the first driven wheel 43 drives the turntable 31 and the transmission rod 8 to rotate through the transmission gear 46;

step two, pretreatment: electroplating solution is added into the stirring barrel 101, the stirring barrel 101 rotates to drive the blade 103 to rotate, the electroplating solution in the stirring barrel 101 is accelerated to enter the filtering barrel 102, and in the process that the electroplating solution enters the filtering barrel 102, the pretreatment membrane on the surface of the filtering barrel 102 filters substances such as metal scraps in the electroplating solution;

step three, quantitatively discharging liquid: when the stirring barrel 101 rotates, when the position of the secondary liquid discharge hole 62 corresponds to the primary liquid discharge hole 61 and the liquid discharge pipe 63, the liquid in the filtering barrel 102 enters the liquid discharge pipe 63, and when the secondary liquid discharge hole 62 is staggered with the primary liquid discharge hole 61 and the liquid discharge pipe 63, the liquid in the filtering barrel 102 cannot enter the liquid discharge pipe 63, so that quantitative addition is realized;

step four, discharging the electroplating sludge: the blade 103 can scrape the electroplating mud on the surface of the filter barrel 102, the electroplating mud on the surface of the filter barrel 102 can also fall partially by itself, the electroplating mud enters the annular groove from the groove beside the arc-shaped narrow plate 662, the stirring barrel 101 drives the primary sewage discharge hole 64 to rotate when rotating, the electroplating mud in the annular groove is squeezed out of electroplating liquid by the inclined arc-shaped filter screen 663, the arc-shaped partition plate 661 blocks the primary sewage discharge hole 64 when rotating to the position of the primary sewage discharge hole 64, and the secondary sewage discharge hole 65 is communicated with the primary sewage discharge hole 64 at the moment to discharge the electroplating mud;

step five, primary treatment: when the stirring barrel 101 rotates, the L-shaped piston rod 221 is driven to move up and down through the first guide groove, the L-shaped piston rod 221 drives the piston assembly 23 to move up and down, when the piston assembly 23 moves up, the rolling wheel 326 in the adjacent first piston structure 32 passes through the small concave groove 35, the first piston rod 325 drives the second piston to move away from one end of the toothed ring 324, gas in the first cylinder 21 is pumped through the air inlet pipeline 332, electroplating solution in the liquid discharge pipe 63 is pumped into the first cylinder 21, the piston assembly 23 and the second piston continue to move to pump the interior of the first cylinder 21 into a low-pressure state, moisture in the electroplating solution is gasified and passes through the waterproof breathable film 24 to enter a position between the waterproof breathable film 24 and the piston assembly 23, the L-shaped piston rod 221 moves down, the first piston rod 325 drives the second piston to be close to one end of the toothed ring 324, after the air pressure in the first cylinder 21 is recovered, gasified water vapor is liquefied and collected above the waterproof breathable film 24 and is discharged into the liquid storage tank 511, the piston assembly 23 extrudes the electroplating solution to push the isolating film mechanism 25 to move down, and then passes through the first-stage isolating film mechanism 26 to pump the first-stage electroplating solution inlet pipeline 334, and the first-stage electroplating solution is discharged into the first-stage electroplating solution inlet structure 21;

step six, secondary treatment: the primary permeate liquid passing through the bottom of the isolating membrane mechanism 25 enters the water storage frame 521, and enters the liquid storage tank 511 after being filtered by the secondary membrane 512, the transmission rod 8 drives the planet wheel 542 to rotate through the sun wheel 541, the planet wheel 542 drives the piston inside the second piston structure 531 to reciprocate through the second piston rod, and the one-way valve is matched to pump the liquid inside the liquid storage tank 511 into the second piston structure 531 through the ionic liquid pipeline 534 and convey the liquid into the communicating pipe 532, and the cation in the filtrate is filtered out through the tertiary membrane in the communicating pipe 532 and then is discharged into the bottom of the isolating membrane mechanism 25 through the water outlet pipe 533 for filtering;

step seven, automatic discharging: because the water can be extracted from the electroplating liquid, the liquid in the water storage frame 521 can be gradually increased, and because the concentration of the unfiltered component in the liquid in the isolation cover 523 can also be increased, when the liquid level in the water storage frame 521 is higher than the top of the water pipeline 522, the liquid in the water storage frame 521 is discharged, so that the liquid in the water storage frame 521 can be automatically discharged at a certain time.

The above embodiments are only for illustrating the present invention and are not to be construed as limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. The electroplating liquid membrane separation and recovery technical equipment is characterized by comprising a pretreatment mechanism (1) for pretreating electroplating solution, wherein a discharge mechanism (6) is arranged at the bottom of the pretreatment mechanism (1), the discharge mechanism (6) comprises a quantitative structure for quantitatively discharging the electroplating solution and a sludge discharge structure for discharging the electroplating sludge, a membrane separation mechanism is arranged below the discharge mechanism (6), and a driving mechanism (4) for driving the pretreatment mechanism (1) and the membrane separation mechanism to operate is arranged between the membrane separation mechanism and the pretreatment mechanism (1);

the membrane separation mechanism comprises a plurality of primary separation mechanisms (2) for separating electroplating solution, a plurality of auxiliary and output mechanisms (3) and a circulation recovery mechanism (5), the circulation recovery mechanism (5) comprises a secondary separation mechanism (51), an automatic liquid drainage mechanism (52) and a circulation mechanism (53), the secondary separation mechanism (51) is used for secondary separation of primary permeate liquid, the automatic liquid drainage mechanism (52) is used for automatic discharge of concentrated secondary permeate liquid, and the circulation mechanism (53) is used for filtering the secondary permeate liquid and conveying the filtered water to the primary separation mechanisms (2) for recycling;

the primary separation mechanism (2) comprises a first cylinder body (21), a piston assembly (23) is arranged inside the first cylinder body (21), a transmission mechanism (22) used for driving the first cylinder body (21) is arranged at the top of the piston assembly (23), a waterproof breathable film (24) in sliding connection with the first cylinder body (21) is arranged below the piston assembly (23), the waterproof breathable film (24) is used for separating water from electroplating liquid, an isolating film mechanism (25) is arranged below the waterproof breathable film (24), a primary film is arranged on the isolating film mechanism (25), a plurality of inclined rods (26) and reset springs (27) are arranged at the bottom of the isolating film mechanism (25), the inclined rods (26) are used for controlling the isolating film mechanism (25), and a mounting frame (7) is fixedly arranged between the plurality of first cylinder bodies (21);

the piston assembly (23) comprises a top piston (231) at the bottom end of the transmission mechanism (22), a plurality of sliding rods (232) are inserted into the bottom of the top piston (231), a bottom piston (234) is arranged at the bottom end of each sliding rod (232), an adaptive spring (233) is sleeved on each sliding rod (232), and one sliding rod (232) is of a hollow structure and is communicated with the bottom of the bottom piston (234);

the auxiliary and output mechanism (3) comprises an extraction mechanism and a conversion mechanism, the extraction mechanism comprises a first piston structure (32) which is rotatably connected to the circumferential side of the top of the mounting frame (7), the top of the first piston structure (32) is provided with a rotary disc (31) driven by the driving mechanism (4), the bottom of the rotary disc (31) is provided with a second guide groove, the second guide groove comprises an arc-shaped groove (34), a small concave groove (35) and a large concave groove (36) close to one side of the small concave groove (35), a first rack (37) fixedly connected with the rotary disc (31) is arranged between the large concave groove (36) and the small concave groove (35) and positioned outside the second guide groove, the first piston structure (32) comprises a second cylinder body (321), a second piston is arranged inside the second cylinder body (321), a first piston rod (325) is fixedly arranged on the second piston, a second piston rod (325) is arranged inside, a second transmission rod (326) is arranged at the end of the second guide groove (31), and a rolling wheel (8) is arranged at the bottom end of the rotary disc (31);

the conversion mechanism comprises a toothed ring (324) fixedly sleeved on the second cylinder body (321), a first check valve (322), a second check valve (323) and a conversion assembly (33), the conversion assembly (33) comprises a rotary disc (331) rotatably connected with the second cylinder body (321), an air inlet pipeline (332), an air outlet pipeline (333), a liquid inlet pipeline (334) and a liquid outlet pipeline (335) are inserted into the circumferential side of one side, away from the second cylinder body (321), of the rotary disc (331), the air inlet pipeline (332) and the liquid inlet pipeline (334) are symmetrically arranged, the air outlet pipeline (333) and the liquid outlet pipeline (335) are symmetrically arranged, the air inlet pipeline (332) and the air outlet pipeline (333) correspond to the first check valve (322) and the second check valve (323) respectively, the end of the air inlet pipeline (332) is communicated with a hollow slide rod (232) in the adjacent first cylinder body (21), the end of the air outlet pipeline (333) is communicated with the air inlet pipeline (332), and the end of the liquid inlet pipeline (334) is communicated with a water-permeable membrane (24) and a water-proof membrane (25) isolation mechanism;

the circulating recovery mechanism (5) comprises a liquid storage tank (511), a secondary membrane (512) is arranged at the bottom of the circumferential side of the liquid storage tank (511), a water purification pipe (513) communicated with one side of a first cylinder body (21) located in the area above the waterproof breathable membrane (24) is communicated with the top of the liquid storage tank (511), the automatic liquid drainage mechanism (52) comprises a water storage frame (521) arranged on the outer side of a secondary separation mechanism (51), a plurality of water pipelines (522) are inserted into the bottom end of the inside of the water storage frame (521), a support frame is arranged at the top of each water pipeline (522), an isolation cover (523) is arranged at the top of each support frame, a plurality of permeation liquid pipelines (524) are communicated with the top of the outside of the water storage frame (521), the end part of each permeation liquid pipeline (524) is communicated with one side of the first cylinder body (21) and located in the area at the bottom of the isolation membrane mechanism (25), and a third one-way valve is arranged at the joint of the first cylinder body (21) and the permeation liquid pipelines (524);

be equipped with cam mechanism (54) that is located mounting bracket (7) bottom middle part on transfer line (8), cam mechanism (54) is including fixed cover locate sun gear (541) on transfer line (8), the meshing of the circumference side of sun gear (541) is equipped with a plurality of planet wheel (542), circulation mechanism (53) are including a plurality of fixed connection in No. two piston structure (531) of mounting bracket (7) bottom, the avris intercommunication of No. two piston structure (531) is equipped with ionic liquid pipeline (534), the tip of ionic liquid pipeline (534) passes second grade separating mechanism (51) and extends to the bottom of second grade separating mechanism (51), a plurality of No. two piston structure (531) are equidistant to be distributed in the outside of a plurality of planet wheel (542), the second piston rod on No. two piston structure (531) is articulated with the avris of adjacent planet wheel (542) bottom, the tip of a plurality of No. two piston structure (531) is equipped with same communicating pipe (532) through No. four check valve intercommunications, the bottom of communicating pipe (532) inside communicating pipe (532) is equipped with tertiary cylinder body, the bottom intercommunication of communicating pipe (532) is equipped with the bottom intercommunication of outlet pipe (533), the bottom intercommunication of outlet pipe (533) is equipped with one-way cylinder body (533), the outlet pipe (533) is equipped with another area of the other valve (21) and is located in the region of the region (21) and is also is located one-way valve (533).

2. The technical equipment for separating and recovering the electroplating liquid film according to the claim 1, wherein the pretreatment mechanism (1) comprises an agitating barrel (101) and a filtering barrel (102) rotatably arranged at the bottom end inside the agitating barrel (101), a pretreatment film is arranged outside the filtering barrel (102), a plurality of blades (103) are fixedly arranged on the inner wall of the agitating barrel (101), the blades (103) are obliquely arranged, a fixing plate (104) is rotatably arranged at the bottom of the agitating barrel (101), a connecting column is fixedly arranged in the middle of the top end of the fixing plate (104), and the top of the connecting column is fixedly connected with the bottom end of the filtering barrel (102).

3. The apparatus for separating and recovering plating liquid film according to claim 2, wherein the quantitative structure is adapted to take out a volume of the plating liquid from the filtering barrel (102).

4. The electroplating liquid film separating and recycling technical equipment according to claim 3, wherein the sludge discharging structure comprises an annular groove formed in the stirring barrel (101) and a secondary sewage discharge hole (65) formed in the bottom end of the fixing plate (104) and corresponding to the annular groove, a primary sewage discharge hole (64) is formed in the inner wall of the bottom end of the annular groove, a sludge cleaning ring (66) is arranged inside the annular groove, the sludge cleaning ring (66) is composed of two arc-shaped partition plates (661), two arc-shaped narrow plates (662) and two arc-shaped filter screens (663), the arc-shaped filter screens (663) are arranged in an inclined mode, and an entering groove for passing electroplating sludge is formed in the outer side of the arc-shaped narrow plates (662).

5. The apparatus for separating and recycling the electroplating liquid film according to claim 4, wherein the transmission mechanism (22) drives the piston assembly (23) to reciprocate up and down through the rotation of the stirring barrel (101).

6. The technical equipment for separating and recovering the electroplating liquid film according to claim 5, wherein the transmission mechanism (22) comprises a first guide groove which is arranged outside the stirring barrel (101), the first guide groove consists of a horizontal guide groove (222) and a convex guide groove (223) which is arranged on one side of the horizontal guide groove (222), a guide wheel is arranged inside the first guide groove, and an L-shaped piston rod (221) is rotatably arranged on one side of the guide wheel.

7. The technical equipment for separating and recovering the electroplating liquid film according to claim 6, wherein the isolating membrane mechanism (25) comprises a top baffle plate (251) and a bottom rotating plate (253) rotatably connected to the bottom end of the top baffle plate (251), a plurality of first fan-shaped holes (252) are formed in the top of the top baffle plate (251) at equal intervals, a plurality of second fan-shaped holes (254) staggered with the first fan-shaped holes (252) are formed in the top of the bottom rotating plate (253), the circumferential side of the bottom end of the bottom rotating plate (253) is hinged to the tops of a plurality of inclined rods (26), and the bottoms of the inclined rods (26) are hinged to the inner wall of the bottom end of the first cylinder body (21).

8. A method for separating and recovering a plating liquid film by using the apparatus for separating and recovering a plating liquid film according to claim 7, comprising the steps of:

step one, driving: the stirring barrel (101), the turntable (31) and the transmission rod (8) are driven to rotate;

step two, pretreatment: electroplating solution is added into the stirring barrel (101), the stirring barrel (101) rotates to enable the electroplating solution to enter the filtering barrel (102), and metal scraps in the electroplating solution are filtered by a pretreatment membrane on the surface of the filtering barrel (102);

step three, quantitatively discharging liquid: the quantitative structure is used for taking out a certain volume of electroplating solution from the filter barrel (102);

step four, discharging the electroplating sludge: electroplating mud enters the annular groove from the groove beside the arc-shaped narrow plate (662), the stirring barrel (101) drives the primary sewage discharge hole (64) to rotate when rotating, the electroplating mud in the annular groove is extruded out of electroplating liquid by the inclined arc-shaped filter screen (663), the arc-shaped partition plate (661) blocks the primary sewage discharge hole (64) when rotating to the position of the primary sewage discharge hole (64), and the secondary sewage discharge hole (65) is communicated with the primary sewage discharge hole (64) at the moment to discharge the electroplating mud;

step five, primary treatment: when the piston assembly (23) moves upwards, the first piston structure (32) sucks air, electroplating solution in the liquid discharge pipe (63) is sucked into the first cylinder body (21), the air pressure in the first cylinder body (21) is reduced to evaporate water in the electroplating solution, when the piston assembly (23) moves downwards, the first piston structure (32) exhausts air, water vapor is liquefied and discharged to the second-stage separation mechanism (51), the piston assembly (23) extrudes the electroplating solution and the isolation membrane mechanism (25), the isolation membrane mechanism (25) moves downwards and then is opened, the electroplating solution is subjected to membrane separation through the first-stage membrane on the isolation membrane mechanism (25), and the extraction mechanism extracts the concentrated solution;

step six, secondary treatment: the first-stage permeate liquid passing through the bottom of the isolating membrane mechanism (25) enters the automatic liquid discharging mechanism (52), is filtered and then enters the second-stage separation mechanism (51), and the circulating mechanism (53) filters cations in the filtrate and then discharges the filtered cations into the bottom of the isolating membrane mechanism (25) for filtering;

step seven, automatic discharging: the liquid in the automatic liquid discharging mechanism (52) is automatically discharged after reaching a certain concentration.