阅读说明：本技术 可回收稀有金属的电镀废水处理设备及其操作方法 (Electroplating wastewater treatment equipment capable of recycling rare metals and operation method thereof ) 是由 匡武 王翔宇 郑西强 于 2021-08-27 设计创作，主要内容包括：本发明公开了可回收稀有金属的电镀废水处理设备,包括箱体,箱体的下侧壁上固定安装有基座,箱体的上端侧壁上设置有进水口,箱体的下端侧壁上设置有出水口,箱体的内侧壁上固定安装有隔板,箱体的侧壁上安装有多个电解箱,多个电解箱对称设置,隔板设置在多个电解箱之间,隔板的侧壁上安装有通水管,通水管上固定安装有电磁阀,多个电解箱内均安装有用于回收稀有金属的回收机构。本发明还公开了可回收稀有金属的电镀废水处理设备的操作方法,本发明可实现回收多种稀有金属的目的,且不需要进行多个工艺流程,使得电解回收的工作效率更高。(The invention discloses electroplating wastewater treatment equipment capable of recovering rare metals, which comprises a box body, wherein a base is fixedly arranged on the lower side wall of the box body, a water inlet is formed in the side wall of the upper end of the box body, a water outlet is formed in the side wall of the lower end of the box body, a partition plate is fixedly arranged on the inner side wall of the box body, a plurality of electrolytic tanks are arranged on the side wall of the box body, the electrolytic tanks are symmetrically arranged, the partition plate is arranged among the electrolytic tanks, a water through pipe is arranged on the side wall of the partition plate, an electromagnetic valve is fixedly arranged on the water through pipe, and a recovery mechanism for recovering rare metals is arranged in each electrolytic tank. The invention also discloses an operation method of the electroplating wastewater treatment equipment capable of recovering the rare metals, which can realize the purpose of recovering various rare metals without carrying out a plurality of process flows, so that the work efficiency of electrolytic recovery is higher.)

1. Electroplating wastewater treatment equipment of recoverable rare metal, including box (1), fixed mounting has base (2) on the lower lateral wall of box (1), be provided with water inlet (11) on the upper end lateral wall of box (1), be provided with delivery port (5), its characterized in that on the lower extreme lateral wall of box (1): the electrolytic cell is characterized in that a partition plate (6) is fixedly installed on the inner side wall of the box body (1), a plurality of electrolytic tanks (3) are installed on the side wall of the box body (1), the electrolytic tanks (3) are symmetrically arranged, the partition plate (6) is arranged among the electrolytic tanks (3), a water through pipe (7) is installed on the side wall of the partition plate (6), an electromagnetic valve (8) is fixedly installed on the water through pipe (7), and recovery mechanisms for recovering rare metals are installed in the electrolytic tanks (3);

retrieve mechanism and include solution tank (16), solution tank (16) fixed mounting is on the lateral wall of electrolysis box (3), through-hole (21) have been seted up on the lateral wall of electrolysis box (3), solution tank (16) with box (1) is inside to be passed through-hole (21) are linked together, are located solution tank (16) upside fixed mounting has the clamping piece on the lateral wall of electrolysis box (3), clamping has electrode bar (24) in the clamping piece, the one end of electrode bar (24) is run through and is inserted and establish in solution tank (16), it is equipped with collection mechanism to insert on the lateral wall of solution tank (16), electrode bar (24) are located and set up in the collection mechanism.

2. The apparatus for treating electroplating wastewater capable of recovering rare metals according to claim 1, characterized in that: the collecting mechanism comprises a sleeve (26), a sliding plate (15) is slidably mounted on the side wall of the sleeve (26), a first compression spring (14) is fixedly mounted on one side of the sliding plate (15), one end of the first compression spring (14) is fixedly mounted on the bottom side of the sleeve (26), a collecting pipe (20) is fixedly mounted on the other side of the sliding plate (15), the collecting pipe (20) is slidably inserted into the side wall of the solution tank (16), an electrode rod (24) is arranged in the collecting pipe (20), a connecting ring (22) is fixedly mounted on the side wall of the collecting pipe (20), a second compression spring (30) is fixedly mounted on the inner ring side wall of the connecting ring (22), and a scraper (31) is fixedly mounted on the second compression spring (30).

3. The apparatus for treating electroplating wastewater capable of recovering rare metals according to claim 2, characterized in that: the scraper plates (31) are arranged in two numbers, the scraper plates (31) are arc-shaped structural thin plates, the side walls of the two scraper plates (31) are fixedly provided with a plurality of second compression springs (30), and the second compression springs (30) are uniformly distributed on the side walls of the connecting rings (22).

4. The apparatus for treating electroplating wastewater capable of recovering rare metals according to claim 1, characterized in that: fixed mounting has a plurality of L shaped plates (45) on the lateral wall of base (2), and is a plurality of breach groove (46) have been seted up to one side of L shaped plate (45), slidable mounting has arm-tie (47) in breach groove (46), one side fixed mounting of arm-tie (47) has shock attenuation board (49), shock attenuation board (49) with it is fixed through fixing bolt (48) spiro union between box (1), one side fixed mounting of shock attenuation board (49) has damping spring (50), damping spring (50) one end with one side fixed mounting of L shaped plate (45).

5. The apparatus for treating electroplating wastewater capable of recovering rare metals according to claim 1, characterized in that: the inboard slidable mounting of solution tank (16) has piston plate (17), fixed mounting has screwed pipe (18) on the lateral wall of solution tank (16), electrode bar (24) slide and run through piston plate (17) and set up, one side of piston plate (17) is rotated and is installed screw rod (19), the lateral wall of solution tank (16) is run through to the one end of screw rod (19), screw rod (19) with screwed pipe (18) spiro union cooperation, one side fixed mounting of piston plate (17) has shutoff board (23), shutoff board (23) are installed and are being close to one side of electrolysis box (3).

6. The apparatus for treating electroplating wastewater capable of recovering rare metals and the electrolysis method thereof according to claim 1, wherein: the inboard of base (2) sets up to hollow structure, the inboard fixed mounting of base (2) has partition plate (41), is located partition plate (41) both sides equal fixed mounting has diaphragm (38) in base (2), diaphragm (38) with be provided with heating chamber (40) in base (2) between partition plate (41), one of them fixed mounting has first heat conduction stick (39) in heating chamber (40), the one end of heat-conducting plate (39) runs through the box and sets up the lateral wall down, another one side fixed mounting of heating chamber (40) has the protective sheath, insert in the protective sheath and be equipped with second heat conduction stick (42), the one end of second heat conduction stick (42) runs through the downside of box (1) with baffle (6) and extend to the upside setting of box (1), all insert on the lateral wall of diaphragm (38) and be equipped with heat-conducting plate (43), two the one end fixed mounting of heat-conducting plate (43) has hot plate (44), two control switch (37), two are installed to the symmetry on the lateral wall of base (2) control switch (37) with connect through electric wire (36) between hot plate (44).

7. The apparatus for treating electroplating wastewater capable of recovering rare metals according to claim 1, characterized in that: the clamping piece includes two insulation boards (33), two the equal fixed mounting in one end of insulation board (33) has slider (32), two the equal slidable mounting in spout (35) of slider (32), spout (35) are seted up and are being located solution tank (16) upside on the lateral wall of electrolysis box (3), two the equal fixed mounting in the other end of insulation board (33) has current conducting plate (25), fixed mounting has the wire on the lateral wall of current conducting plate (25), two fixed mounting has extension spring (34) between insulation board (33).

8. The apparatus for treating electroplating wastewater capable of recovering rare metals according to claim 1, characterized in that: fixed mounting has carousel (9) on the lateral wall of baffle (6), carousel (9) interpolation is equipped with rotates stick (13), fixed mounting has a plurality of boards (10) of dialling on the lateral wall of rotating stick (13), fixedly connected with motor (12) on the lateral wall of box (1), the one end at rotating stick (13) is installed to the output shaft of motor (12), the outside of motor (12) is provided with protective housing (4).

9. The apparatus for treating electroplating wastewater capable of recovering rare metals according to claim 8, characterized in that: the hollow structure design of the rotating rod (13) is adopted, an inner gear ring (28) is installed inside the rotating rod (13), a matched gear (29) is arranged in the inner gear ring (28), a rotating shaft (27) is inserted into the side wall of the gear (29), and the rotating shaft (27) and the output shaft of the motor (12) are fixedly installed through a coupler.

10. The method for operating a rare metal-recoverable electroplating wastewater treatment facility according to any one of claims 1 to 9, comprising the steps of:

firstly, when recovery work is carried out, a collecting pipe (20) in two opposite electrolytic tanks (3) is inserted into a solution tank (16) and sealed, then electrode rods (24) in the two electrolytic tanks (3) penetrate through the solution tank (16), a piston plate (17) and a connecting ring (22) and are inserted into the collecting pipes (20) on two sides, and then the two electrode rods (24) are clamped by two conductive plates (25) in corresponding clamping pieces through the elasticity of a tension spring (34);

injecting waste water into the box body (1) through the water inlet (11), wherein the waste water enters the solution tank (16) through the through hole (21); electrifying the electrode rods (24) at the two sides to separate out rare metals contained in the wastewater on the electrode rods (24) at the cathode and generate corresponding anode mud at the anode;

after electrolysis is carried out for a period of time, a worker rotates the screw (19) to drive the piston plate (17) to move downwards to extrude the collecting pipe (20), so that the collecting pipe (20) moves towards the sleeve (26), and metal or anode mud separated out from the electrode rod (24) is scraped off by the scraper (31) and enters the collecting pipe (20); then, the reverse operation is carried out, the electrode rod (24) continuously carries out electrolytic work, when the collecting mechanism needs to be removed, the piston plate (17) is downward, the waste water in the solution tank (16) is extruded out through the piston plate (17), then the through hole (21) is blocked by the blocking plate (23), and then the worker takes out the collecting pipe (20) through the sleeve (26) and takes out the metal in the collecting pipe;

step four, in the process of electrolysis, the motor (12) drives the gear (29) to rotate to drive the rotating rod (13) to rotate, so that the rotating rod (13) stirs the wastewater through the shifting plate (10) to carry out uniform electrolysis;

step five, the heating plate (44) is started to heat through the control switch (37) and is transmitted to the heat-conducting medium in the heating cavity (40) through the heat-conducting plate (43); and starting the electromagnetic valve (8) to make the wastewater in the box body (1) at the upper side of the partition plate (6) fall into the box body (1) at the lower side of the partition plate (6) after a period of electrolysis for electrolysis, and recovering different precipitated metals under the condition of electrode rods (24) made of different materials through the same steps.

Technical Field

The invention relates to the field of sewage electrolysis equipment, in particular to electroplating wastewater treatment equipment capable of recycling rare metals and an operation method thereof.

Background

Electroplating wastewater is mainly discharged from an electroplating plant, mainly contains heavy metal ions such as phosphorus, nickel, copper and the like, belongs to carcinogenic highly toxic substances, and is greatly harmful to the environment when directly discharged; at present, the electrolytic treatment of waste water is mostly adopted, under the action of an external electric field, the waste water flows through an electrolytic cell, oxidation and reduction reactions respectively occur at an anode and a cathode, and harmful substances are removed.

In the prior art, the post treatment of the electroplating wastewater also adopts an electrolytic method, and has the following two defects: 1. electrolytic recovery of rare metals is not well realized, and after electrolysis is carried out for a period of time, the electrolytic efficiency is reduced due to the change of the concentration around the electrode bar; 2. the electrolysis is single when recovering rare metals, and mainly recovers one metal during the electrolysis, while the sewage often contains a plurality of rare metals, so the electrolysis recovery is often carried out in sequence, but the efficiency of wastewater treatment is reduced.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides electroplating wastewater treatment equipment capable of recovering rare metals and an electrolysis method thereof.

In order to solve the problems in the prior art, the invention adopts the following technical scheme:

electroplating wastewater treatment equipment capable of recycling rare metals comprises a box body, wherein a base is fixedly mounted on the lower side wall of the box body, a water inlet is formed in the upper side wall of the box body, a water outlet is formed in the lower side wall of the box body, a partition plate is fixedly mounted on the inner side wall of the box body, a plurality of electrolytic boxes are mounted on the side wall of the box body and symmetrically arranged, the partition plate is arranged between the electrolytic boxes, a water pipe is mounted on the side wall of the partition plate, an electromagnetic valve is fixedly mounted on the water pipe, a recovery mechanism for recovering rare metals is mounted in each electrolytic box, the recovery mechanism comprises a solution box, the solution box is fixedly mounted on the side wall of the electrolytic box, a through hole is formed in the side wall of the electrolytic box, and the solution box is communicated with the inside of the box body through the through hole, the side wall of the electrolytic tank, which is positioned on the upper side of the solution tank, is fixedly provided with a clamping piece, an electrode bar is clamped in the clamping piece, one end of the electrode bar is inserted into the solution tank in a penetrating manner, the side wall of the solution tank is provided with a collecting mechanism in an inserted manner, and the electrode bar is positioned in the collecting mechanism.

Preferably, the collecting mechanism comprises a sleeve, a sliding plate is slidably mounted on the side wall of the sleeve, a first compression spring is fixedly mounted on one side of the sliding plate, one end of the first compression spring is fixedly mounted on the bottom side of the sleeve, a collecting pipe is fixedly mounted on the other side of the sliding plate, the collecting pipe is slidably inserted into the side wall of the solution tank, the electrode rod is arranged in the collecting pipe, a connecting ring is fixedly mounted on the side wall of the collecting pipe, a second compression spring is fixedly mounted on the inner ring side wall of the connecting ring, and a scraping plate is fixedly mounted on the second compression spring.

Preferably, fixed mounting has a plurality of L shaped plates, and is a plurality of on the lateral wall of base the breach groove has been seted up to one side of L shaped plate, slidable mounting has the arm-tie in the breach groove, one side fixed mounting of arm-tie has the shock attenuation board, the shock attenuation board with it is fixed through the fixing bolt spiro union between the box, one side fixed mounting of shock attenuation board has damping spring, damping spring's one end with one side fixed mounting of L shaped plate.

Preferably, the number of the scrapers is two, the scrapers are arc-shaped structural thin plates, the side walls of the two scrapers are fixedly provided with the plurality of second compression springs, and the plurality of second compression springs are uniformly distributed on the side wall of the connecting ring.

Preferably, there is a piston plate inboard slidable mounting of solution tank, fixed mounting has the screwed pipe on the lateral wall of solution tank, the electrode bar slides and runs through the piston plate setting, one side of piston plate is rotated and is installed the screw rod, the one end of screw rod runs through the lateral wall of solution tank, the screw rod with screwed pipe spiro union cooperation, one side fixed mounting of piston plate has the shutoff board, the shutoff board is installed and is close to one side of electrolysis box.

Preferably, the inner side of the base is a hollow structure, the inner side of the base is fixedly provided with a partition plate, transverse plates are fixedly arranged in the base at two sides of the partition plate, a heating cavity is arranged in the base between the transverse plates and the partition plate, one of the heating chambers is fixedly provided with a first heat conducting rod, one end of the heat conducting plate penetrates through the lower side wall of the box body, one side of the other heating chamber is fixedly provided with a protective sleeve, a second heat conducting rod is inserted in the protective sleeve, one end of the second heat conducting rod penetrates through the lower side of the box body and the partition plate and extends to the upper side of the box body, heat-conducting plates are inserted on the side walls of the transverse plates, a heating plate is fixedly arranged at one end of each heat-conducting plate, two control switches are symmetrically installed on the side wall of the base, and the two control switches are connected with the heating plate through electric wires.

Preferably, the clamping piece includes two insulation boards, two the equal fixed mounting of one end of insulation board has the slider, two the equal slidable mounting of slider is in the spout, the spout is seted up and is located the solution tank upside on the lateral wall of electrolysis box, two the equal fixed mounting of the other end of insulation board has the current conducting plate, fixed mounting has the wire on the lateral wall of current conducting plate, two fixed mounting has the extension spring between the insulation board.

Preferably, fixed mounting has the carousel on the lateral wall of baffle, the carousel interpolation is equipped with and rotates the stick, fixed mounting has a plurality of boards of dialling on the lateral wall of rotation stick, fixedly connected with motor on the lateral wall of box, the one end at the rotation stick is installed to the output shaft of motor, the outside of motor is provided with the protective housing.

Preferably, the rotating rod is designed to be of a hollow structure, an inner gear ring is mounted inside the rotating rod, a matched gear is arranged in the inner gear ring, a rotating shaft is inserted into the side wall of the gear, and the rotating shaft and the output shaft of the motor are fixedly mounted through a coupler.

The invention also provides an operation method of the electroplating wastewater treatment equipment capable of recovering the rare metals, which comprises the following steps:

firstly, inserting collecting pipes in two opposite electrolytic tanks into a solution tank and sealing the collecting pipes when recovery work is carried out, then respectively inserting electrode rods in the two electrolytic tanks into the collecting pipes on two sides through the solution tank, a piston plate and a connecting ring, and then clamping the two electrode rods through two conductive plates in corresponding clamping pieces by virtue of the elasticity of a tension spring;

injecting waste water into the box body through the water inlet, wherein the waste water enters the solution box through the through hole; electrifying the electrode bars on the two sides to separate out rare metals contained in the wastewater on the electrode bars of the cathode, and generating corresponding anode mud by the anode;

after electrolysis is carried out for a period of time, a worker rotates the screw to drive the piston plate to move downwards to extrude the collecting pipe, so that the collecting pipe moves towards the sleeve, and metal or anode mud separated out from the electrode rod is scraped down by the scraper and enters the collecting pipe; then, the electrode bar is operated reversely to continuously carry out electrolysis work, when the collecting mechanism needs to be taken down, the piston plate is made to face downwards, the waste water in the solution tank is extruded out through the piston plate, then the through hole is plugged by the plugging plate, and then the worker takes out the collecting pipe through the sleeve and takes out the metal in the collecting pipe;

step four, in the process of electrolysis, the motor drives the gear to rotate to drive the rotating rod to rotate, so that the rotating rod stirs the wastewater through the shifting plate to carry out uniform electrolysis;

step five, the heating plate is started to heat through the control switch and is transmitted to the heat-conducting medium in the heating cavity through the heat-conducting plate; and starting the electromagnetic valve to ensure that the wastewater in the box body on the upper side of the partition plate falls into the box body on the lower side of the partition plate after a period of electrolysis for electrolysis, and recovering the metals precipitated in different ways by the same steps under the condition of electrode rods made of different materials.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, the activity of ions and the like in the wastewater is improved through heat energy, so that the uniform distribution of metal ions is facilitated, the concentration of various substances in the wastewater is further more uniform, and the electrolysis work is facilitated.

2. In the invention, by carrying out layered electrolysis in the box body, different electrolysis works can be carried out simultaneously, the purpose of recovering various rare metals on one device is realized, the time and manpower and material resources required for transferring waste water are reduced, and the work efficiency of electrolysis recovery is higher;

3. in the invention, the motor is started to drive the gear to rotate through the rotating shaft, then the gear drives the rotating rod to rotate through the inner gear ring, so that the rotating rod stirs the wastewater through the shifting plate, and in the process of metal precipitation by electrolysis, the concentrations of various substances in the wastewater close to the electrode rod are more uniform, the work of electrolysis and metal precipitation is facilitated, the electrolysis efficiency is improved, and the metal precipitation effect is increased;

in conclusion, different metals can be separated out according to different metal contents in the wastewater, the aim of recovering various rare metals can be achieved on one device, and a plurality of process flows are not needed, so that the electrolytic recovery work efficiency is higher; the concentration of various substances in the wastewater close to the electrode bar is more uniform, so that the electrolysis and metal precipitation work are facilitated, the electrolysis efficiency is improved, and the metal precipitation effect is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is an enlarged view at C of FIG. 2;

FIG. 6 is a top view of the collection mechanism of the present invention;

FIG. 7 is a top view of the clamp of the present invention;

FIG. 8 is a schematic illustration of the degradation process of the present invention;

number in the figure: 1. a box body; 2. a base; 3. an electrolytic tank; 4. a protective shell; 5. a water outlet; 6. a partition plate; 7. a water pipe; 8. an electromagnetic valve; 9. a turntable; 10. dialing a plate; 11. a water inlet; 12. a motor; 13. rotating the rod; 14. a first compression spring; 15. a slide plate; 16. a solution tank; 17. a piston plate; 18. a threaded pipe; 19. a screw; 20. a collection pipe; 21. a through hole; 22. a connecting ring; 23. a plugging plate; 24. an electrode rod; 25. a conductive plate; 26. a sleeve; 27. a rotating shaft; 28. an inner gear ring; 29. a gear; 30. a second compression spring; 31. a squeegee; 32. a slider; 33. an insulating plate; 34. a tension spring; 35. a chute; 36. an electric wire; 37. a control switch; 38. a transverse plate; 39. a heat conducting plate; 40. a heating cavity; 41. dividing the plate; 42. a second thermally conductive rod; 43. a heat conducting plate; 44. heating plates; 45. an L-shaped plate; 46. a notch groove; 47. pulling a plate; 48. fixing the bolt; 49. a damper plate; 50. a shock absorbing spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The first embodiment is as follows: the embodiment provides electroplating wastewater treatment equipment capable of recycling rare metals, and referring to fig. 1-7, the electroplating wastewater treatment equipment specifically comprises a box body 1, wherein a base 2 is fixedly installed on the lower side wall of the box body 1, a water inlet 11 is formed in the upper side wall of the box body 1, a water outlet 5 is formed in the lower side wall of the box body 1, a partition plate 6 is fixedly installed on the inner side wall of the box body 1, a plurality of electrolytic tanks 3 are installed on the side wall of the box body 1, the electrolytic tanks 3 are symmetrically arranged, the partition plate 6 is arranged among the electrolytic tanks 3, a water through pipe 7 is installed on the side wall of the partition plate 6, an electromagnetic valve 8 is fixedly installed on the water through pipe 7, and a recycling mechanism for recycling rare metals is installed in each electrolytic tank 3;

the recovery mechanism comprises a solution tank 16, the solution tank 16 is fixedly mounted on the side wall of the electrolytic tank 3, a through hole 21 is formed in the side wall of the electrolytic tank 3, the solution tank 16 is communicated with the inside of the tank body 1 through the through hole 21, a clamping piece is fixedly mounted on the side wall of the electrolytic tank 3 on the upper side of the solution tank 16, an electrode rod 24 is clamped in the clamping piece, one end of the electrode rod 24 is inserted into the solution tank 16, a collecting mechanism is inserted into the side wall of the solution tank 16, and the electrode rod 24 is arranged in the collecting mechanism.

In the invention, the collecting mechanism comprises a sleeve 26, a sliding plate 15 is slidably mounted on the side wall of the sleeve 26, a first compression spring 14 is fixedly mounted on one side of the sliding plate 15, one end of the first compression spring 14 is fixedly mounted on the bottom side of the sleeve 26, a collecting pipe 20 is fixedly mounted on the other side of the sliding plate 15, the collecting pipe 20 is slidably inserted on the side wall of the solution tank 16, an electrode rod 24 is arranged in the collecting pipe 20, a connecting ring 22 is fixedly mounted on the side wall of the collecting pipe 20, a second compression spring 30 is fixedly mounted on the inner ring side wall of the connecting ring 22, and a scraping plate 31 is fixedly mounted on the second compression spring 30.

According to the invention, the plurality of L-shaped plates 45 are fixedly mounted on the side wall of the base 2, one side of each L-shaped plate 45 is provided with the notch groove 46, the pull plate 47 is slidably mounted in the notch groove 46, the damping plate 49 is fixedly mounted on one side of the pull plate 47, the damping plate 49 is fixedly connected with the box body 1 through the fixing bolt 48 in a threaded manner, the damping spring 50 is fixedly mounted on one side of the damping plate 49, one end of the damping spring 50 is fixedly mounted on one side of the L-shaped plate 45, and due to the structural design, certain shaking can occur in the box body 1, the generated shaking can be transmitted to the damping plate 49, and the damping plate 49 can move along the reverse direction of the notch groove 46 on the L-shaped plate 45 through the pull plate 47, so that the damping plate 49 can extrude the damping spring 50 to buffer and damp when shaking is borne, and the whole equipment is more stable in the operation electrolysis process.

In the invention, the number of the scrapers 31 is two, the scrapers 31 are arc-shaped structural thin plates, the side walls of the two scrapers 31 are fixedly provided with the plurality of second compression springs 30, and the plurality of second compression springs 30 are uniformly distributed on the side wall of the connecting ring 22, so that the scraping effect of the scrapers 31 on the electrode rods 24 is better, and the scrapers 31 can adapt to the electrolytic rods 24 with different diameters.

In the invention, a piston plate 17 is slidably mounted on the inner side of a solution tank 16, a threaded pipe 18 is fixedly mounted on the side wall of the solution tank 16, an electrode bar 24 is slidably arranged through the piston plate 17, a screw rod 19 is rotatably mounted on one side of the piston plate 17, one end of the screw rod 19 penetrates through the side wall of the solution tank 16, the screw rod 19 is in threaded fit with the threaded pipe 18, whether the solution tank 16 contains wastewater or not can be controlled through the arranged piston plate 17, so that the collection work of precipitated metal and other substances is facilitated, a blocking plate 23 is fixedly mounted on one side of the piston plate 17, the blocking plate 23 is mounted on one side close to an electrolytic tank 3, and the blocking plate 23 can be controlled to prevent the wastewater in a tank body 1 from entering the solution tank 16 during the metal recovery work.

In the invention, the inner side of the base 2 is a hollow structure, the inner side of the base 2 is fixedly provided with a dividing plate 41, the base 2 at two sides of the dividing plate 41 is internally fixedly provided with a transverse plate 38, a heating cavity 40 is arranged in the base 2 between the transverse plate 38 and the dividing plate 41, one heating cavity 40 is internally fixedly provided with a first heat conducting rod 39, one end of the heat conducting plate 39 penetrates through the lower side wall of the box body, one side of the other heating cavity 40 is fixedly provided with a protective sleeve, a second heat conducting rod 42 is inserted in the protective sleeve, one end of the second heat conducting rod 42 penetrates through the lower side of the box body 1 and the partition plate 6 and extends to the upper side of the box body 1, the side walls of the transverse plate 38 are respectively inserted with a heat conducting plate 43, one ends of the two heat conducting plates 43 are fixedly provided with a heating plate 44, the side walls of the base 2 are symmetrically provided with two control switches 37, and the two control switches 37 are connected with the heating plate 44 through an electric wire 36, this kind of structural design, in the electrolysis process, can start heating plate 44 through control switch 37 and heat, then transmit the heat-conducting medium in heating chamber 40 through heat-conducting plate 43, when the waste water of heating upside, then the heating has the heat-conducting medium of second heat-conducting rod 42 one side, when heating downside waste water, can heat the heat-conducting medium that has first heat-conducting rod 39 one side, can make the activity degree such as ion in the waste water improve through heat energy like this, thereby be favorable to metal ion's evenly distributed, further make the concentration of various materials in the waste water more even, more be favorable to going on of electrolysis work.

In the invention, the clamping element comprises two insulating plates 33, one ends of the two insulating plates 33 are fixedly provided with the sliding blocks 32, the two sliding blocks 32 are slidably arranged in the sliding grooves 35, the sliding grooves 35 are formed in the side wall of the electrolytic tank 3 positioned on the upper side of the solution tank 16, the other ends of the two insulating plates 33 are fixedly provided with the conductive plates 25, the side wall of the conductive plate 25 is fixedly provided with a wire, and the tension springs 34 are fixedly arranged between the two insulating plates 33.

Example two: in the first embodiment, there is also a problem that the electrolysis efficiency is reduced due to the concentration change around the electrode rod, and therefore, the first embodiment further includes:

according to the invention, the side wall of the partition plate 6 is fixedly provided with the rotary table 9, the rotary bar 13 is inserted into the rotary table 9, the side wall of the rotary bar 13 is fixedly provided with the plurality of shifting plates 10, the side wall of the box body 1 is fixedly connected with the motor 12, the output shaft of the motor 12 is arranged at one end of the rotary bar 13, and the outer side of the motor 12 is provided with the protective shell 4.

In the invention, the rotating rod 13 adopts a hollow structure design, the inner gear ring 28 is arranged inside the rotating rod 13, the matched gear 29 is arranged in the inner gear ring 28, the rotating shaft 27 is inserted on the side wall of the gear 29, and the rotating shaft 27 and the output shaft of the motor 12 are fixedly installed through a coupler.

Example three: referring to fig. 7, in this embodiment, the present invention further provides a method for operating an electroplating wastewater treatment facility capable of recovering rare metals, comprising the steps of:

firstly, when recovery work is carried out, the collecting pipes 20 in two opposite electrolytic tanks 3 are inserted into a solution phase tank 6 and are sealed, then the electrode rods 24 in the two electrolytic tanks 3 penetrate through a solution tank 16, a piston plate 17 and a connecting ring 22 and are inserted into the collecting pipes 20 at two sides, and then the two electrode rods 24 are clamped by two conductive plates 25 in corresponding clamping pieces through the elasticity of a tension spring 34;

secondly, injecting wastewater into the box body 1 through the water inlet 11, wherein the wastewater can enter the solution tank 16 through the through hole 21, then starting the power supply in the electrode rods 24 at the two sides, so that rare metals contained in the wastewater are separated out from the electrode rods 24 at the cathode, the specific separated out rare metals are determined according to the material of the electrode rods 24, and then the anode generates corresponding anode mud;

step three, after electrolysis is carried out for a period of time, a worker rotates the screw rod 19, so that the screw rod 19 is matched with the threaded pipe 18 to drive the piston plate 17 to move downwards, then the piston plate 17 extrudes the collecting pipe 20, the collecting pipe 20 moves towards the sleeve 26 through the sliding plate 15, the connecting ring 22 scrapes off metal or anode mud separated out from the electrode rod 24 through the scraper 31, the metal or the anode mud enters the collecting pipe 20, and then the operation is carried out in the reverse direction, so that the electrode rod 24 continuously carries out electrolysis work; when the collecting mechanism needs to be removed, the piston plate 17 is made to face downwards, waste water in the solution tank 16 is extruded out through the piston plate 17, then the through hole 21 is blocked by the blocking plate 23, and then a worker takes out the collecting pipe 20 through the sleeve 26 and takes out metal in the collecting pipe;

step four, in the process of electrolysis, the motor 12 is started, so that the motor 12 drives the gear 29 to rotate through the rotating shaft 27, then the gear 29 drives the rotating rod 13 to rotate through the inner toothed ring 28, so that the rotating rod 13 stirs the wastewater through the shifting plate 10, the concentration of various substances in the wastewater is more uniform, and the electrolysis work is facilitated, in the process of driving the rotating shaft 27 to rotate by the motor 12, the box body 1 can shake to a certain extent, the generated shake can be transmitted to the damping plate 49, the damping plate 49 can move along the reverse direction of the notch groove 46 on the L-shaped plate 45 through the pulling plate 47, and when the damping plate 49 bears the shake, the damping spring 50 is extruded to buffer and damp, so that the whole equipment is more stable in the operation electrolysis process;

step five, in the electrolytic process, the heating plate 44 can be started to heat through the control switch 37, and then the heat is transferred to the heat-conducting medium in the heating cavity 40 through the heat-conducting plate 43, when the waste water on the upper side is heated, the heat-conducting medium on the side with the second heat-conducting rod 42 is heated, when the waste water on the lower side is heated, the heat-conducting medium on the side with the first heat-conducting rod 39 can be heated, the activity degree of ions and the like in the waste water is improved through the heat energy, so that the uniform distribution of metal ions is facilitated, the concentration of various substances in the waste water is further more uniform, the electrolytic work is more facilitated, the electromagnetic valve 8 is started, the waste water in the box body 1 on the upper side of the partition plate 6 falls into the box body 1 on the lower side of the partition plate 6 after being electrolyzed for a period of time, and different metals are separated out under the condition that the electrode rods 24 are made of different materials through the same steps, the effect of recovering various rare metals is achieved, and a plurality of process flows are not needed, so that the electrolytic recovery work efficiency is higher.

The invention can separate out different metals according to the different contents of the metals in the wastewater, can realize the purpose of recovering various rare metals on one device, does not need to carry out a plurality of process flows, ensures that the work efficiency of electrolytic recovery is higher, can ensure that the concentration of various substances in the wastewater close to the electrode bar is more uniform in the process of electrolyzing and separating out the metals, is convenient for the work of electrolyzing and separating out the metals, improves the efficiency of electrolyzing, and increases the separation effect of the metals.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.