CN213013129U

CN213013129U - Starting sheet cathode for cobalt electrodeposition

Info

Publication number: CN213013129U
Application number: CN202021491251.1U
Authority: CN
Inventors: 和润秀; 林大志; 况鑫; 徐军辉; 陈剑锋; 上官经; 韩广文; 杨正龙
Original assignee: Guangxi Yinyi Advanced Material Co ltd
Current assignee: Guangxi Yinyi Advanced Material Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-04-20
Anticipated expiration: 2030-07-24

Abstract

The utility model relates to a hydrometallurgy electrodeposition equipment field, concretely relates to cobalt is starting sheet negative pole for electrodeposition, this starting sheet negative pole includes the bar copper, starting sheet and anchor clamps, starting sheet passes through the below of a plurality of anchor clamps connection setting at the bar copper, anchor clamps include electrically conductive support module, lug piece, starting wedge piece, two first through-holes have been seted up respectively to electrically conductive support module's both ends, electrically conductive support module both ends are crooked to form a closed loop and will be hung the one end centre gripping of lug piece wherein, and be equipped with the second through-hole corresponding with first through-hole on this tip, the other end is equipped with two first punching holes, first through-hole and second through-hole pass through bolt fixed connection, be equipped with the second punching hole on the starting sheet, first punching hole and second punching hole are inserted through starting wedge piece and are established wherein, the bar copper is worn to establish in closed loop. The utility model discloses can effectively solve in the cobaltous sulfate electrodeposition production initial polar plate hangers easy fracture, the electric conductivity ability is poor, and the cobalt plate is flexible to be out of shape, can not adapt to heavy current production scheduling problem.

Description

Starting sheet cathode for cobalt electrodeposition

Technical Field

The utility model relates to a hydrometallurgy electrodeposition equipment field specifically relates to a starting sheet negative pole for cobalt electrodeposition.

Background

In the hydrometallurgy electrodeposition process, the cathode plate is used as a carrier for metal electrolytic deposition, and the characteristics of the cathode plate, such as material quality, conductive capacity, area size and the like, are closely related to the capacity of an electrolytic bath and the quality of an electrodeposition product. In the process of cobalt sulfate electrodeposition, the cobalt sheet falls off from the non-cobalt cathode plate due to internal stress generated by uneven metal precipitation, so that the cobalt plate cannot be deposited to the required thickness. Therefore, the cobalt electrodeposition production of the sulfuric acid system needs to make a cobalt cathode in advance.

The existing method generally uses a titanium plate as a mother plate to manufacture a starting sheet, firstly the mother plate is used as a cathode to be electrodeposited in an electrolytic bath, when the thickness of the mother plate is about 0.5mm, the mother plate is taken out, the thin cobalt starting sheet is stripped from the mother plate, flattening and trimming are carried out, a lifting lug is separately manufactured, the lifting lug usually penetrates through a conducting rod after being bent, and the other end of the lifting lug is welded or riveted on the starting sheet to manufacture a starting sheet cathode plate. Because the texture of the cobalt starting sheet is crisp, the plate surface draping degree is kept by binding the rigid supporting bars before use in order to ensure the sheet forming rate without embossing treatment. The starting sheet prepared by the method has the following defects in the production process: the cobalt starting electrode plate newly installed with the groove for electrodeposition is light in weight, the bent suspension lug is not well contacted with the copper rod, the cobalt solution volatilizes to generate crystallization on a contact surface to deteriorate the conductivity, the suspension lug is blown due to point contact in the electrodeposition process, and the method is not suitable for high-current-density production conditions; because the starting sheet is uneven in conductivity, metal deposition on the starting sheet is uneven, and the starting sheet is bent due to the accumulation of internal stress of a cobalt plate, so that short circuit of a cathode and an anode is easily caused; moreover, along with the continuous increase of starting sheet weight, the gravity that the hangers bore increases, and the hangers fracture easily appears after buckling the aggravation, leads to the electrodeposition production can't continue.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the cathode of the starting plate can effectively solve the technical problems that a hanging lug of the starting plate is easy to break, the electric conduction capacity is poor, a cobalt plate is easy to bend and deform, and the cathode cannot adapt to large-current production in the production of cobalt sulfate electrodeposition.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a starting sheet negative pole for cobalt electrodeposition, includes bar copper, starting sheet and anchor clamps, the starting sheet is through a plurality of the setting is connected to anchor clamps is in the below of bar copper, anchor clamps include electrically conductive support module, auricle and starting sheet wedge, two parallel arrangement's first through-hole has been seted up respectively to the both ends of electrically conductive support module, electrically conductive support module both ends are crooked to form a closed loop and will auricle's one end centre gripping wherein, and be equipped with on this tip with the corresponding second through-hole of first through-hole, two first punching holes have been seted up to the other end, first through-hole and second through-hole pass through bolt fixed connection.

The starting sheet is provided with a second punching hole corresponding to the first punching hole, the first punching hole and the second punching hole are inserted into the starting sheet through the starting wedge sheet, so that the starting wedge sheet fixedly connects the lug plate and the starting sheet, and the copper rod is arranged in the closed ring in a penetrating manner.

Preferably, the starting sheet is rectangular, 5-9 circular punched holes are formed in the starting sheet in the diagonal direction, and the diameter of each circular punched hole is 5-10 mm.

Preferably, the number of the circular punched holes is 9, and the diameter of each circular punched hole is 8 mm.

Preferably, the conductive support module is made of red copper, the thickness of the conductive support module is 2-5mm, and the outer surface of the conductive support module is wrapped with corrosion-resistant thin titanium.

Preferably, the lug plate and the starting pole wedge plate are made of waste starting pole pieces, and the bolt is made of corrosion-resistant titanium materials.

Preferably, there are 2-4 clamps.

Due to the adoption of the technical scheme, the beneficial effects of the utility model are that:

1. the utility model provides a starting sheet cathode for cobalt electrodeposition, this starting sheet cathode simple structure, convenient to use. The hangers that bend of conducting electricity usefulness of conduct as hanging and with the bar copper contact commonly used the utility model discloses in the electrically conductive support module that changes red copper material into and make, the bolt tightening that adopts corrosion-resistant titanium material to make two hangers's mode is connected and is hung, and hangers piece atress is the pulling force of direction of gravity, no longer receives the bending shear stress, consequently the section of easily rolling over. In addition, the conductive support module can be used repeatedly, the contact surface of the conductive support module and the copper bar is large, the conductive support module is tightly attached, the conductive support module is not influenced by acid mist and cobalt sulfate crystals, the conductivity of the cathode plate is good, and the conductive support module can meet the production requirement of high current density.

2. The utility model discloses well starting sheet negative plate face electric conduction is good, and the deposit of cobalt metal is even on the starting sheet, and the internal stress is little, and the crooked phenomenon of face can improve.

3. The utility model discloses well starting sheet diagonal direction has seted up the circular punching a hole of a plurality of, and circular punching a hole has strengthened the electric hydrops and has flowed, makes the cobalt concentration difference reduce around the face, and metal deposition is more even, eliminates the crooked phenomenon of face.

4. The utility model discloses well anchor clamps are equipped with 2-4, and a plurality of anchor clamps can strengthen the steadiness between bar copper and the starting sheet, prevent that the unstable rocking that probably causes of starting sheet leads to metal cobalt to appear the in-process inhomogeneous.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic view of the conductive support module of the present invention in an expanded state;

FIG. 4 is a schematic view of the hanging tab of the present invention;

the main reference symbols in the drawings are as follows:

1. a copper bar; 2. starting a pole piece; 21. punching a hole; 22. circular punching; 3. a conductive support module; 31. a first through hole; 4. hanging a lug plate; 41. a second through hole; 42. a first punched hole; 5. a starting pole wedge sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, a starting sheet cathode for cobalt electrodeposition, including bar copper 1, starting sheet 2 and anchor clamps, starting sheet 2 is connected through a plurality of anchor clamps and is set up in the below of bar copper 1, anchor clamps include electrically conductive support module 3, hangers piece 4 and starting wedge 5, electrically conductive support module 3 is made by red copper material, thickness is 2-5mm, and the surface is wrapped up in and is had corrosion-resistant thin titanium, electrically conductive support module 3 can used repeatedly, hangers piece 4 and starting wedge 5 are made by useless starting sheet, can material saving, reduction in production cost. The number of the clamps is 2-4, the stability between the copper rod 1 and the starting sheet 2 can be enhanced by the clamps, and the phenomenon that the cobalt metal is not uniformly precipitated due to shaking caused by instability of the starting sheet 2 is avoided. In the present embodiment, 2 clamps are provided.

Two first through holes 31 arranged in parallel are respectively formed at two ends of the conductive support module 3, two ends of the conductive support module 3 are bent to form a closed loop and clamp one end of the lug plate 4, a second through hole 41 corresponding to the first through hole 31 is formed in the end, two first punching holes 42 are formed in the other end of the conductive support module, and the first through hole 31 and the second through hole 41 are fixedly connected through bolts. The shape of the conductive support module 3 is always in a fixed closed ring shape in the using or recycling process, the conductive support module can not restore to a flat state, and the bolt is made of a corrosion-resistant titanium material. The starting sheet 2 is provided with a second punching hole 21 corresponding to the first punching hole 42, the first punching hole 42 and the second punching hole 21 are inserted in the starting sheet 2 through the starting wedge 5, so that the lug 4 and the starting sheet 2 are fixedly connected by the starting wedge 5, and the copper rod 1 is arranged in the closed ring in a penetrating manner. The hangers of bending that conduct electricity usefulness as hanging commonly used and with 1 contact of bar copper the utility model discloses in change into the electrically conductive support module 3 that the red copper material was made, and electrically conductive support module 3 surface wraps up in with corrosion-resistant thin titanium, the bolt tightening two modes of hanging auricle 4 that adopt corrosion-resistant titanium material to make are connected and are hung, and hangers piece 4 atress is the pulling force of direction of gravity, no longer receives the bending shear stress, consequently the section of difficult rolling over. In addition, the inner surface of the conductive support module 3 is made of copper, the contact surface of the inner surface of the conductive support module 3 with the copper bar 1 and the lug piece 4 is large, the contact surface is tightly attached, the influence of acid mist and cobalt sulfate crystals is avoided, the conductivity of the cathode plate is good, and the conductive support module can meet the production requirement of high current density.

In this embodiment, the starting sheet 2 is rectangular, 5-9 circular punched holes 22 are formed in the starting sheet 2 in the diagonal direction, and the diameter of the circular punched hole 22 is 5-10 mm. In the present embodiment, 9 circular punched holes 22 are provided, and the diameter of the circular punched hole 22 is 8 mm. The circular punch holes 22 enhance the flow of the electro-hydraulic fluid, so that the concentration difference of cobalt around the plate surface is reduced, the cobalt metal deposition is more uniform, and the plate surface bending phenomenon is eliminated.

The utility model discloses a theory of operation: as shown in fig. 1 and fig. 2, a cathode of the starting sheet of the present application, which is prepared in advance, is put into an electrodeposition solution for electrodeposition, and the surface of the cathode sheet is immersed in the electrolyte solution. Two auricles 4 are fastened by the bolt, hug closely with electrically conductive support module 3, and the contact is good, relies on the self gravity of starting sheet 2 simultaneously, and electrically conductive support module 3 internal surface closely laminates with bar copper 1 and two auricles 4, and area of contact is big, and is electrically conductive good, and electrodeposition process cobalt ion is discharged at the negative plate and is appeared. Because the electric conduction is good, the condition that one side of the lug plate 4 is conductive and the other side is non-conductive can not occur, the power lines of the plate surface are uniformly distributed, the cobalt metal is uniformly separated out, and the internal stress generated by the plate surface is small.

Along with the proceeding of the electrodeposition process, the cobalt concentration around the cathode plate surface is depleted, and the new solution supplemented into the electrolytic bath can rapidly reach the other side from one side of the cathode plate through the circular punching holes 22 at the upper, middle and lower parts of the distribution plate surface, so that the convection effect among the solutions is enhanced, cobalt ions around the plate surface are supplemented in time, the cobalt concentration polarization is eliminated, and the uniformity of metal precipitation in the electrodeposition process is maintained. In the uninterrupted electrodeposition thickening process of the cobalt cathode, the stress accumulation effect is slowed down, meanwhile, along with the electrodeposition, the circular punched hole 22 is used for sealing the precipitated cobalt metal again, after the thickness of the cobalt plate meets the requirement, the cathode cobalt plate is hoisted out of the groove by a groove hoisting tool, the copper rod 1, the conductive support module 3 and the bolt are taken down and used for manufacturing a lower negative plate, and the cobalt plate is sent to the plate shearing machine to be sheared as required.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. The cathode of the starting sheet for cobalt electrodeposition is characterized by comprising a copper bar (1), a starting sheet (2) and clamps, wherein the starting sheet (2) is arranged below the copper bar (1) through a plurality of clamps in a connecting manner, each clamp comprises a conductive support module (3), a lug hanging piece (4) and a starting wedge piece (5), two first through holes (31) which are arranged in parallel are respectively formed at two ends of the conductive support module (3), two ends of the conductive support module (3) are bent to form a closed loop and clamp one end of the lug hanging piece (4) in the closed loop, a second through hole (41) corresponding to the first through hole (31) is formed in the end of the closed loop, two first punched holes (42) are formed in the other end of the closed loop, and the first through hole (31) and the second through hole (41) are fixedly connected through a bolt,

the starting sheet (2) is provided with a second punching hole (21) corresponding to the first punching hole (42), the first punching hole (42) and the second punching hole (21) are inserted into the starting sheet wedge (5) so that the starting sheet wedge (5) fixedly connects the lug hanging piece (4) and the starting sheet (2), and the copper rod (1) is arranged in the closed ring in a penetrating mode.

2. The cathode of claim 1, wherein the cathode sheet (2) is rectangular, the cathode sheet (2) has 5-9 circular punched holes (22) in the diagonal direction, and the diameter of the circular punched holes (22) is 5-10 mm.

3. A cathode for a cobalt electrowinning starter plate according to claim 2, wherein there are 9 circular punched holes (22) and the diameter of said circular punched holes (22) is 8 mm.

4. The cathode of claim 1, wherein the conductive support module (3) is made of red copper, has a thickness of 2-5mm, and has an outer surface coated with corrosion-resistant thin titanium.

5. The cathode of claim 1, wherein the tab (4) and the wedge (5) are made of waste starting sheet (2), and the bolt is made of corrosion-resistant titanium material.

6. The cathode for a cobalt electrowinning starter sheet according to claim 1 wherein there are 2 to 4 clamps.