CN212199442U

CN212199442U - Electrolytic recycling machine

Info

Publication number: CN212199442U
Application number: CN202020848638.1U
Authority: CN
Inventors: 王晓红; 汪雪峰; 桑亿
Original assignee: Huafu Shanghai Environmental Protection Technology Co ltd
Current assignee: Huafu Shanghai Environmental Protection Technology Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-12-22
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses an electrolysis recovery machine relates to noble metal recovery plant field, including control cabinet and electrolysis chamber, still including the ion exchange chamber that is used for concentrated electrolysis chamber waste liquid, be provided with the liquid exchange pipeline between the electrolysis chamber, be provided with the driver part that is used for driving liquid to circulate between electrolysis chamber and ion exchange chamber on the liquid exchange pipeline. To the incomplete problem of current electrolysis recovery unit recovery of retrieving noble metal through electrolytic reaction, the utility model has the advantages of retrieve the noble metal ion in the electrolysis back waste liquid again and carry out the recovery, improved the rate of recovery of noble metal.

Description

Electrolytic recycling machine

Technical Field

The utility model relates to a noble metal recovery plant field, more specifically says that it relates to an electrolysis recovery machine.

Background

Compounds of noble metals are used in large quantities in the pharmaceutical industry and in the production of fine chemicals and other related industries (e.g. electronics industry). In which considerable amounts of precious metals are inevitably discharged in large amounts into industrial effluents, which is of considerable economic value. The precious metal recovery steps are typically pretreatment, classification, sampling, analysis, dissolution, separation, reduction, refining of the ingot.

For the existing electrolytic recovery device, for example, chinese patent with patent publication No. CN201183830Y discloses a metal electrolytic recovery device, which includes: the device comprises an anode tube, an insulating device, a cathode electricity transmission tube and a top cover, wherein the lower end of the anode tube is fixed with a disc and connected with an anode electricity transmission plate, the insulating device consists of a lower insulating tube and an upper insulating tube, wherein the lower insulating tube and the upper insulating tube are both non-conductive bodies, the wall of the lower insulating tube and the wall of the upper insulating tube are provided with an eccentrically convex water inlet and outlet, the upper end of the upper insulating tube is provided with a plurality of L-shaped clamping grooves, the inside of the cathode electricity transmission tube is provided with an electroanalysis tube, the wall of the electroanalysis tube is provided with a groove, the body of the top cover comprises a hollow cover body and a cap cover body, the cover body is provided with a water outlet hole, and the lower end of the outer edge of the cap body is combined and positioned with the L-shaped clamping grooves of.

In the above-mentioned patent, through the separation of the noble metal ion in the electrolysis principle in with the waste liquid and adhere to on the electroanalysis pipe, but the electrolytic reaction can not go on thoroughly, and after the metal ion concentration in the waste liquid reduced to a certain extent, the speed of electrolytic reaction can be very low, and the metal ion can remain in the waste liquid, influences noble metal recovery efficiency.

SUMMERY OF THE UTILITY MODEL

To the problem that prior art exists, the utility model aims at providing an electrolysis recovery machine, it has the advantage of collecting the noble metal ion in the electrolysis waste liquid and regenerating the noble metal ion reaction liquid of high concentration again, improves the rate of recovery of noble metal.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an electrolysis recovery machine, includes control cabinet and electrolysis chamber, still includes and is used for the concentration the ion exchange chamber of electrolysis chamber waste liquid, be provided with the liquid exchange pipeline between the electrolysis chamber, be provided with on the liquid exchange pipeline and be used for driving liquid electrolysis chamber with the drive part of liquid circulation between the ion exchange chamber.

According to the technical scheme, after the precious metal waste liquid is electrolyzed in the electrolysis cavity, the driving part conveys the low-concentration precious metal waste liquid in the electrolysis cavity to the ion exchange cavity, and precious metal ions in the low-concentration precious metal waste liquid are collected by means of ion exchange reaction; after the low-concentration waste liquid is repeatedly treated for many times, the high-concentration noble metal ionic liquid is conveniently obtained and then enters the electrolytic cavity for electrolytic recovery, so that the recovery rate of the noble metal is improved.

The present invention may be further configured in a preferred embodiment as: an ion exchange resin sleeve for replacing noble metal ions in the liquid is arranged in the ion exchange cavity, and a reduction pipe for introducing reduction liquid is arranged on one side of the ion exchange cavity.

Through the technical scheme, after the precious metal waste liquid is electrolyzed in the electrolytic cavity, the driving part conveys the low-concentration precious metal waste liquid in the electrolytic cavity into the ion exchange cavity, the ion exchange resin sleeve replaces precious metal ions in the solution, the precious metal ions are bundled on the ion exchange resin sleeve, after enough metal ions are accumulated, reducing liquid is introduced into the ion exchange cavity through the reducing pipe, the precious metal ions on the ion exchange resin sleeve are replaced, the exchange resin is reduced, the eluent with high-concentration precious metal ions is obtained, the metal ions are easily recovered through electrolysis, and the precious metal recovery rate is improved; the contact area of the ion exchange resin of the sleeve structure and the liquid in the ion exchange cavity is larger, so that metal ions in the liquid can be replaced more effectively.

The present invention may be further configured in a preferred embodiment as: and a stirring paddle is arranged in the ion exchange cavity and is positioned in the ion exchange sleeve resin sleeve.

Through above-mentioned technical scheme, through the liquid flow in the fast ion exchange chamber of stirring rake, make the ion in the liquid can be more probably with the vertical contact of ion exchange and carry out ion exchange, improve ion exchange reaction's efficiency.

The present invention may be further configured in a preferred embodiment as: the paddles are propellers that produce an ascending fluid flow when rotated.

Through the technical scheme, the propeller generates ascending liquid flow, and the liquid flow circulating up and down is formed in the solution, so that the stirring effect is optimized.

The present invention may be further configured in a preferred embodiment as: the ion exchange resin sleeve is a cylindrical barrel part formed by coaxially fixing a plurality of resin sleeves with different diameters together, and a plurality of communicating holes are formed in the barrel body of each resin sleeve in a penetrating mode.

Through the technical scheme, the amount of the ion exchange resin is increased while the liquid is ensured to be fully contacted with the ion exchange resin, the ion exchange resin can more thoroughly replace metal ions in the liquid due to the increase of the ion exchange resin because the ion exchange reaction enables a reversible reaction, and the rate and the recovery rate of the ion exchange are increased.

The present invention may be further configured in a preferred embodiment as: the electrolytic cell is characterized in that a coaxial anode tube and a cathode tube are arranged in the electrolytic cavity, and the anode tube is positioned in the cathode tube.

By the technical scheme, the anode tube and the cathode tube are respectively used as a positive electrode and a negative electrode to electrolyze the precious metal waste liquid in the cavity.

The present invention may be further configured in a preferred embodiment as: the cathode tube comprises a cathode conductive tube fixed on the inner wall of the cavity of the electrolysis cavity and a detachable electroanalysis tube inserted in the cathode conductive tube, and the electroanalysis tube and the cathode conductive tube are the same in height.

Through the technical scheme, the precious metal subjected to electron reduction is attached to the detachable electric precipitation plate, so that the precious metal is convenient to recycle.

The present invention may be further configured in a preferred embodiment as: a groove is formed in the pipe wall of the electric precipitation pipe along the length direction of the pipe body, and the length of the groove is the same as the pipe length of the electric precipitation pipe.

Through the technical scheme, the resonance principle of the groove is utilized, the electroanalysis tube can be tapped to enable the metal layer recovered by electrolysis to automatically fall off, and the electroanalysis tube has the effects of time saving, labor saving and difficult damage.

To sum up, the utility model discloses a following at least one useful technological effect:

(1) after the precious metal waste liquid is electrolyzed in the electrolytic cavity, the driving part conveys the low-concentration precious metal waste liquid in the electrolytic cavity to the ion exchange cavity, precious metal ions in the low-concentration precious metal waste liquid are collected by utilizing ion exchange reaction, after the low-concentration waste liquid is repeatedly treated for many times, enough precious metal ions are collected in the ion exchange cavity, the high-concentration precious metal liquid is generated again in the ion exchange cavity, and the high-concentration precious metal liquid in the ion exchange cavity is conveyed back to the precious metal in the electrolytic cavity through the driving part;

(2) further, the stirring paddle is arranged in the ion exchange cavity, so that the speed of the ion exchange reaction is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of the internal structure of the electrolytic chamber of the present embodiment;

FIG. 3 is a schematic view showing the structure of the electric precipitation tube of the present embodiment;

FIG. 4 is a schematic view showing the internal structure of the ion exchange chamber of the present embodiment (communication holes are omitted);

fig. 5 is a schematic structural view of the ion exchange resin cartridge in this embodiment.

Reference numerals: 1. a mounting frame; 2. a console; 3. an electrolysis chamber; 31. a liquid inlet pipe; 32. an anode tube; 33. a cathode tube; 331. a cathode conductive tube; 332. an electroanalytical tube; 333. a groove; 4. an ion exchange chamber; 41. a reduction tube; 42. an eluent tube; 43. a waste discharge pipe; 44. an ion exchange resin cartridge; 441. a communicating hole; 45. a stirring paddle; 46. a rotating shaft; 47. an O-shaped sealing ring; 5. a liquid exchange conduit; 6. a drive member; 7. a current conducting plate; 8. a cavity housing; 9. a cover body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

An electrolysis recovery machine comprises a mounting rack 1, wherein a console 2 with a control system arranged inside is fixedly welded on the top of the mounting rack 1, two cylindrical reaction tank bodies are fixedly arranged at the bottom of the mounting rack 1, the two tank bodies are respectively an electrolysis cavity 3 and an ion exchange cavity 4, the electrolysis cavity 3 is communicated with the ion exchange cavity 4 through a liquid exchange pipeline 5, two ends of the liquid exchange pipeline are respectively connected to the bottom of the electrolysis cavity 3 and the bottom of the ion exchange cavity 4, a driving part 6 is arranged on the liquid exchange pipeline 5, and the driving part 6 is a diaphragm pump; the upper end of the electrolysis cavity 3 is provided with a liquid inlet pipe 31, the bottom of the ion exchange cavity 4 is provided with a waste discharge pipe 43 and an elution liquid pipe 42, and the upper end of the ion exchange cavity 4 is provided with a reduction pipe 41 for introducing reduction liquid. The reduction pipe 41, the waste discharge pipe 43, the eluent pipe 42, the liquid exchange pipeline 5 and the liquid inlet pipe 31 are all connected in series with pipeline valves for controlling the opening and closing of the pipelines.

Referring to fig. 1 and 2, the electrolytic chamber 3 includes a cylindrical chamber shell 8 and a cover 9, a liquid inlet pipe 31 communicated with the inside of the chamber shell 8 is arranged on the cover 9, a cylindrical anode pipe 32 fixed at the bottom of the chamber shell 8 is coaxially arranged in the chamber shell 8, and the anode pipe 32 is a hollow cylindrical tank body of a cylindrical shell with a middle hole; a cylindrical cathode tube 33 is coaxially arranged on the peripheral side of the anode tube 32, and the cathode tube 33 is fixed at the bottom outer diameter of the cavity shell 8 and inside the cavity shell 8; a hollow round cathode plate is coaxially arranged between the anion exchange membrane and the cavity shell 8, the cathode plate comprises a cylindrical cathode conductive tube 331 which is in inserted fit with the cavity shell 8 and an electroanalytical tube 332 which is slidably inserted in the cathode conductive plate, and the electroanalytical tube 332 is a stainless steel cylinder; two current-conducting plates 7 respectively abutted to the tube bodies of the cathode conductive tube 331 and the anode tube 32 are embedded at the bottom of the cavity shell 8 and used for connecting an external circuit to supply power to the cathode conductive tube 331 and the anode tube 32.

Referring to fig. 3, the side wall of the electroanalysis tube 332 is provided with a slot 333 along the length direction of the tube body, the length of the slot 333 is the same as that of the electroanalysis tube 332, and the electroanalysis tube 332 can be tapped to automatically drop the electrolytically recovered metal layer by utilizing the resonance principle of the slot 333, so that the electroanalysis tube 332 has the effects of time saving, labor saving and difficult damage.

Referring to fig. 1 and 4, the main body of the ion exchange chamber 4 comprises another set of chamber shell 8 and cover 9, and a cylindrical ion exchange resin sleeve 44 is slidably inserted into the chamber shell 8 for replacing metal ions in the liquid; a stirring paddle 45 is arranged in the ion exchange cavity 4, the stirring paddle 45 is driven by a driving motor, the driving motor is fixed at the bottom of the mounting rack 1, a transmission shaft of the driving motor penetrates into the ion exchange cavity 4, a rotating shaft 46 is coaxially fixed on the transmission shaft, the stirring paddle 45 is fixedly welded on the rotating shaft 46, the stirring paddle 45 is a propeller which rotates to generate ascending liquid flow, two groups of stirring paddles 45 are arranged along the length direction of the rotating shaft 46, the liquid flow in the ion exchange cavity 4 is accelerated through the stirring paddles 45, the spiral stirring paddle 45 forms ascending liquid flow in the middle of the ion exchange resin sleeve 44, so that the liquid flow circulating up and down is formed in the ion exchange cavity 4, and metal ions can be fully contacted with the ion exchange resin sleeve 44; an O-ring 47 for ensuring sealing is fitted between the shaft 46 and the housing of the chamber case 8.

Referring to fig. 5 again, the ion exchange resin sleeve 44 includes a plurality of resin sleeves of different diameters coaxially and integrally disposed, a plurality of communication holes 441 are formed through the body of each resin sleeve, and the communication holes 441 are uniformly distributed along the circumferential direction and the axial direction of the body, respectively.

When the utility model is used, the noble metal waste liquid is electrolyzed in the electrolysis cavity 3 to obtain the noble metal attached to the side wall of the electroanalysis tube 332 and the noble metal ion waste liquid with low concentration; the diaphragm pump conveys the low-concentration precious metal waste liquid in the electrolytic cavity 3 to the ion exchange cavity 4, and precious metal ions in the low-concentration precious metal waste liquid are replaced by an ion exchange resin sleeve 44 through ion exchange reaction, so that precious metal is further recovered; after repeatedly treating the low-concentration waste liquid for many times, enough noble metal ions are accumulated on the ion exchange resin sleeve 44 in the ion exchange cavity 4, and reducing liquid is introduced to reduce the ion exchange resin sleeve 44 and generate eluent with high concentration of the noble metal ions; discharging the eluent from the discharge port, putting the eluent into the electrolysis cavity 3 for electrolysis to obtain noble metal solid, discharging and recycling the high-concentration noble metal eluent in the ion exchange cavity 4 from the eluent tube 42, and then introducing the noble metal eluent into the electrolysis cavity 3 for electrolysis to obtain the noble metal.

In summary, the following steps: through the arrangement of the ion exchange cavity 4, the electrolyzed noble metal waste liquid is subjected to ion exchange, the noble metal ions remaining in the waste liquid are further separated, the eluent with high-concentration noble metal ions is obtained through the reducing liquid after sufficient noble metal ions are accumulated, the eluent can be electrolyzed again to recover metals, and the recovery rate of the noble metals is improved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an electrolysis recovery machine, includes control cabinet (2) and electrolysis chamber (3), its characterized in that still includes and is used for the concentration ion exchange chamber (4) of electrolysis chamber (3) waste liquid, be provided with liquid exchange pipeline (5) between electrolysis chamber (3), be provided with on liquid exchange pipeline (5) and be used for driving liquid electrolysis chamber (3) with liquid circulation's between ion exchange chamber (4) drive unit (6).

2. An electrolytic reclaimer machine according to claim 1, characterized in that inside said ion exchange chamber (4) is arranged an ion exchange resin sleeve (44) for replacing noble metal ions in the liquid, one side of said ion exchange chamber (4) is arranged a reducing pipe (41) for letting in reducing liquid.

3. An electrowinning machine in accordance with claim 2, characterised in that a stirring paddle (45) is arranged in said ion exchange chamber (4), said stirring paddle (45) being located in said ion exchange resin cartridge (44).

4. An electrowinning machine in accordance with claim 3, characterised in that said stirring paddles (45) are propellers that generate an ascending liquid flow when rotating.

5. An electrolysis recovery machine according to claim 3, wherein the ion exchange resin sleeve (44) is a cylindrical barrel member formed by coaxially fixing a plurality of resin sleeves with different diameters, and a plurality of communication holes (441) are formed through the barrel body of each resin sleeve.

6. An electrowinning machine in accordance with claim 5, characterised in that said chamber (3) is provided with an anode tube (32) and a cathode tube (33) coaxially, said anode tube (32) being located inside said cathode tube (33).

7. An electrolysis recovery machine according to claim 6, characterized in that said cathode tube (33) comprises a cathode conductive tube (331) fixed on the inner wall of the electrolysis chamber (3) and a detachable electroanalysis tube (332) inserted in said cathode conductive tube (331), said electroanalysis tube (332) and said cathode conductive tube (331) having the same height.

8. An electrolysis recovery machine according to claim 7, characterized in that a slot (333) is arranged on the wall of the electroanalysis tube (332) along the length direction of the tube body, and the length of the slot (333) is the same as the length of the electroanalysis tube (332).