Automatic production method of electrodeposition cobalt plate starting sheet

Abstract

The invention belongs to the technical field of hydrometallurgy, and particularly discloses a method for automatically producing an electrodeposition cobalt plate starting sheet. The method comprises the following steps of: scalding a starting sheet, automatically stripping the starting sheet from a titanium starting sheet, and heating, annealing and cooling under a temperature curve set by a process through a continuous belt type annealing furnace. After annealing, the starting sheet is flattened, and the flattened starting sheet is subjected to automatic edge shearing, embossing and lug shearing. The starting sheets and the lifting lugs are automatically conveyed to the lug welding process through the transmission device, and the welded starting sheets are automatically arranged. At present, due to the problems of large internal stress, high hardness, poor toughness and the like in the processing technology of the starting sheet of electro-deposited cobalt, semi-manual and semi-mechanized production is basically adopted. The whole technological process is short, the automation degree of equipment is high, the machining efficiency and the product quality of the cobalt starting sheet can be greatly improved, the flat plate technology in the traditional cobalt electrodeposition production process is omitted, the production efficiency is improved, and the labor intensity of workers is greatly reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of hydrometallurgy, and specifically relates to a method for automatically producing a starting electrode of an electrolytic cobalt plate. Background Art

[0002] At present, in the production of electrolytic cobalt in the sulfuric acid system, the cobalt starter sheet is brittle and cannot be bent during the production process, resulting in the fact that the cobalt starter sheet is basically made manually and cannot be automated. In addition, since deep grooves cannot be pressed during the production process, the internal stress of the cobalt sheet is not eliminated, and the bending resistance is weak. It is easy to deform and bend in the initial stage of the starter sheet. It is necessary to manually take out the cobalt starter sheet for flattening 12-36 hours after the trough. The labor intensity of the workers is extremely high, and the flattening process is easy to contaminate the cobalt sheet, resulting in unstable quality of the cobalt sheet product, and the product cobalt sheet is prone to stratification. In order to improve the production efficiency of cobalt sheets, reduce the labor intensity of workers, improve product quality, and increase the degree of automation of electrolytic cobalt production, it is urgent to solve the problem of insufficient toughness of cobalt starter sheets in the process of automation implementation, and easy brittle cracking in processes such as trimming and embossing. Summary of the invention

[0003] Based on the problems and shortcomings of the existing technology, after fully analyzing and understanding the reasons why cobalt starter sheets are prone to brittle cracking, a method for automated production of electrolytic cobalt plate starter sheets was invented. This method can greatly reduce the labor intensity of workers and greatly improve production efficiency and product quality stability. The specific technical solutions include the following:

[0004] S1 cleaning: The qualified whole slot titanium seed plate is hoisted out from the starting pole piece, washed with three levels of clean water, the temperature of the washing water is controlled at 40-99℃, PH6-8; then it is hoisted to the receiving plate chain conveyor and transferred to the starting pole piece automatic stripping robot through the chain.

[0005] S2 automatic stripping: The titanium seed plate transplanting device moves the titanium seed plate with sheet horizontally to the stripping position, and the automatic stripping robot uses mechanical vibration to strip it, and the adsorption method uses electromagnetic adsorption or vacuum suction cup adsorption; the stripped titanium plate is placed on the chain conveyor by the stripping robot, and the chain conveyor is transported to the continuous annealing belt furnace. The titanium seed plate transplanting device moves the stripped titanium seed plate out and places it on the plate rack, and the crane returns it to the starting electrode production slot.

[0006] S3 annealing: The starting electrode piece is passed through a continuous belt annealing furnace and transported in any form of mesh belt, steel belt or roller chain. Any one of nitrogen, hydrogen and ammonia decomposition gas is used as a protective gas for heating annealing and cooling. The annealing temperature is set to 400-800℃, the annealing heating and cooling rates are 2-10℃ / min, the annealing holding time is 1-4h, and the annealing cooling rate is 2-10℃ / min. The starting electrode piece after annealing in this step does not need to be pickled again.

[0007] S4 flat plate: The flat plate mechanism includes a driving device, a transmission device, a precision leveling roller, an electric adjustment device, and a frame; the starting pole piece treated by the belt annealing furnace is transported to the precision leveling roller through the translation mechanism and the conveying roller group to level the starting pole piece; the leveled starting pole piece is sucked, translated, lifted, and placed in the starting pole piece storage box by the vacuum adsorption device; the starting pole piece storage box is further transported to the shearing unit for edge and ear shearing through the transmission device.

[0008] S5 trimming: The trimming unit includes a frame, a starting sheet box, a conveying roller group, a sheet suction lifting device, a translation mechanism, a vacuum device, a shearing device, a waste collection box, and a guide chute; the trimming unit sucks sheets from the starting sheet storage box through a vacuum adsorption device, lifts, translates, and places the sheets on the conveying roller group, and the conveying roller group sends the starting sheet to the horizontal biting roller group, and the horizontal sides are cut to the required size by the horizontal cutter; after the starting sheet is sent to the longitudinal biting roller group by the conveying roller group with a 90-degree angle, the longitudinal sides are cut to the required size by the longitudinal cutter, and the starting sheet that meets the requirements after shearing is transported to the embossing unit by the conveying roller group, and the sheared scraps enter the scrap collection box through the edge chute.

[0009] S6 Embossing: The embossing device includes a driving device, a chain / gear transmission device, an embossing device, and a frame. After precise leveling and trimming, the pole piece that meets the requirements is sent to the embossing device by the conveying roller group for transverse embossing. After reversing 90 degrees through the reversing device, longitudinal embossing is performed; the qualified pole piece ears after embossing fall into the pole piece box and are transferred to the pole piece welding ear process through the transmission device.

[0010] S7 ear shearing: The ear shearing group includes a frame, a starting pole piece box, a conveying roller group, a sheet suction lifting device, a translation mechanism, a vacuum device, a shearing device, a waste collection box, and a guide chute; the vacuum device includes a vacuum generator, a triplex and auxiliary pipelines; the ear shearing group sucks, lifts, translates, and places the sheet from the starting pole piece storage box through a vacuum adsorption device, and the conveying roller group sends the starting pole piece into the horizontal biting roller group, and the horizontal sides are cut out by a horizontal cutter to meet the required size of the ear length; after the starting pole piece is sent into the longitudinal biting roller group by the conveying roller group with a 90-degree angle, the longitudinal side is cut out by a longitudinal multi-blade cutter to meet the required size of the ear width, and the qualified starting pole piece ear falls into the ear box and is transferred to the starting pole piece welding ear process through a transmission device. The sheared scraps enter the scrap collection box through the edge chute.

[0011] S8 welding ear and copper rod: The welding ear and copper rod system includes an ear box, a sheet suction device, an ear drop mechanism, a conductive rod side supply device, a slide, a pneumatic device, and a rack. The welding ear consists of a positioning device, an automatic resistance welding machine, and a rack; the conductive rod side supply device includes a conductive rod storage box, a conductive rod distribution and loading mechanism, a conductive rod pushing device, and a conductive rod roller transport mechanism; the starting pole piece ear is sucked out of the ear piece by the ear piece box through the adsorption device and placed in the ear piece slide, and the ear piece slides down to the starting pole piece rod insertion / ear hanging station; the conductive copper rod is sent to the starting pole piece rod insertion station by the chain transport device; prepare for welding operation; transport a batch of conductive rods to the conductive rod box by forklift, separate the conductive rods by the conductive rod distribution and loading mechanism, and transport them to the roller transport mechanism; then push the conductive rods to the specified position by the pushing mechanism to form a seamless connection with the ear piece; weld the starting pole piece that has been threaded and the ear piece hung at the station.

[0012] S9 plate arrangement: the plate arrangement system includes a frame, a drive device, a transmission device, a walking device, and a lifting conveyor; the welded horizontally placed starting pole piece is flipped 90 degrees to a vertical state, and the starting pole piece is transported to the plate shifting station by a quick chain, and the welded starting pole piece is moved horizontally to the plate arrangement chain conveyor station. After there are arranged whole slot starting pole pieces on the plate arrangement chain, the transfer trolley retreats to the plate arrangement chain position. After arriving, the lifting device of the transfer trolley rises, the trolley lifts the whole slot starting pole piece, and the transfer trolley moves forward to the plate arrangement device. The lifting device of the transfer trolley descends, and the trolley places the whole slot starting pole piece on the arrangement comb of the plate arrangement frame for use in the next round of production slots. After placement, the transfer trolley returns to the original position.

[0013] The beneficial effects of the embodiments of the present invention are: compared with the cobalt plates produced by the current production process, the cobalt plates have greater internal stress, higher hardness, and poor toughness. They are prone to breakage during the flat plate, embossing, and automatic shearing process in the subsequent cobalt starting plate manufacturing process, resulting in the difficulty in realizing the automatic processing of the electrolytic cobalt starting plate. After the cobalt starting plate is out of the groove, the present invention performs overall annealing on the cobalt starting plate in a belt annealing furnace, and adopts different heating temperatures, insulation temperatures, insulation times, and cooling times for cobalt starting plates of different thicknesses, so that the metal lattice dislocation generated by the cobalt starting plate during the electrolytic deposition process is completely corrected, the metal lattice arrangement is more standardized, and the metal crystal structure is transformed from a body-centered cubic structure to a face-centered cubic structure. The annealed cobalt starting plate has good toughness, and the 180° bending capacity is increased from 0 times without annealing to more than 20 times of 180° bending. During annealing, protective atmospheres such as hydrogen, nitrogen, and ammonia decomposition gas are used, which can effectively prevent surface oxidation of the cobalt starter sheet, reduce the pickling process of the starter sheet, and reduce the generation of pickling waste liquid.

[0014] The starting electrode sheet after heat treatment has good toughness, and then the automatic conveying device is used to carry out processes such as flat plate, edge trimming, embossing, ear cutting, ear welding, copper rod insertion, and plate arrangement. The automated production of the starting electrode sheet is realized. The depth of the embossing can also be adjusted as needed to enhance the strength requirements of the starting electrode sheet to ensure that it will not deform during the subsequent electrolytic deposition process. The method of increasing the flexibility of the electrolytic cobalt starting electrode sheet and the ear in the present invention makes the overall process flow shorter, the degree of automation of the equipment is significantly increased, the efficiency of cobalt starting electrode sheet processing and product quality are greatly improved, the flat plate process in the traditional cobalt electrolytic production process is eliminated, the production efficiency of cobalt plate processing is improved, and the labor intensity of employees is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 Flow chart of the method of the present invention. DETAILED DESCRIPTION

[0017] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0019] Example:

[0020] S1 cleaning: The qualified whole slot titanium seed plate is hoisted out from the starting pole piece and washed with three levels of clean water. The temperature of the first level washing water is 60℃, the PH value is 6, the temperature of the second level washing water is 80℃, the PH value is 7, and the temperature of the third level washing water is 98℃, the PH value is 7. The washed titanium seed plate is hoisted onto the receiving plate chain conveyor and transmitted to the starting pole piece automatic stripping robot through the chain.

[0021] S2 automatic stripping: The seed plate transplanting device moves the titanium seed plate with sheet horizontally to the stripping position, and the stripping is performed by the automatic stripping robot. The automatic stripping robot strips the starting electrode by mechanical vibration. The cobalt starting electrode is adsorbed by the manipulator using a vacuum suction cup and placed on the chain conveyor. The chain conveyor transports it to the continuous annealing belt furnace. The titanium seed plate transplanting device removes the stripped titanium seed plate and places it on the plate rack, which is returned to the starting electrode production slot by the crane.

[0022] S3 annealing: The starting electrode is annealed in a continuous belt annealing furnace, the conveying method is mesh belt, and the protective atmosphere is nitrogen; the annealing temperature is increased from 0 to 300 at 4°C / min, and from 300 to 600 at 6°C / min. After heating to 600°C, it is kept warm for 2h, and the annealing temperature is reduced at 5°C / min until it drops to room temperature; the furnace is filled with nitrogen for protection during the whole process of heating and cooling.

[0023] S4 flat plate: The starting pole piece after being processed in the belt annealing furnace is transported to the precision leveling roller through the translation mechanism and the conveying roller group to level the starting pole piece; the leveled starting pole piece is sucked, translated, lifted and lowered by the vacuum adsorption device to the starting pole piece storage box; the starting pole piece storage box is further transported to the shearing unit for edge and ear shearing through the transmission device.

[0024] S5 edge trimming: The edge trimming unit sucks the electrode sheet from the starting electrode storage box through a vacuum adsorption device, lifts and lowers, translates, and places the sheet on the conveying roller group. The conveying roller group sends the electrode sheet to the horizontal biting roller group, and the horizontal sides are cut to the required size by the horizontal cutter; after the electrode sheet is sent to the longitudinal biting roller group by the conveying roller group with a 90-degree angle, the longitudinal sides are cut to the required size by the longitudinal cutter. After shearing, the electrode sheet that meets the requirements is transported to the embossing unit by the conveying roller group, and the scraps after shearing enter the scrap collection box through the chute at the edge.

[0025] S6 Embossing: After precise leveling and trimming, the pole piece that meets the requirements is sent to the embossing device by the conveying roller group for transverse embossing. After reversing 90 degrees through the reversing device, longitudinal embossing is carried out; the qualified pole piece ears after embossing fall into the pole piece box and are transferred to the pole piece welding ear process through the transmission device.

[0026] S7 ear cutting: The ear cutting group sucks the electrode from the starting electrode storage box through the vacuum adsorption device, lifts and lowers, translates, and places the electrode on the conveying roller group. The conveying roller group sends the starting electrode to the horizontal biting roller group, and the horizontal cutter cuts the two horizontal sides to meet the required ear length. After the starting electrode is sent to the longitudinal biting roller group by the conveying roller group with a 90-degree angle, the longitudinal side is cut to meet the required ear width by the longitudinal multi-blade cutter. The qualified starting electrode ear falls into the ear box and is transferred to the starting electrode welding ear process through the transmission device. The sheared scraps enter the scrap collection box through the chute at the edge.

[0027] S8 welding ears and copper rod threading: the ear of the starting pole piece is sucked out by the ear piece box through the adsorption device and placed in the ear piece slide, and the ear piece slides down to the starting pole piece threading / ear hanging station; the conductive copper rod is sent to the starting pole piece threading station by the chain conveyor; prepare for welding operation; transport a batch of conductive rods to the conductive rod box by forklift, separate the conductive rods by the conductive rod distribution and loading mechanism and transport them to the roller transport mechanism; then push the conductive rod to the specified position by the pushing mechanism to form a seamless connection with the ear piece; weld the starting pole piece with the rod threaded and the ear piece hung at the station.

[0028] S9 plate arrangement: Flip the welded horizontally placed starting pole piece 90 degrees to a vertical state, and use the quick chain to transport the starting pole piece to the plate shifting station. Move the welded starting pole piece horizontally to the plate arrangement chain conveyor station. After there are arranged whole slot starting pole pieces on the plate arrangement chain, the transfer trolley retreats to the plate arrangement chain position. After arriving, the transfer trolley lifting device rises, the trolley lifts the whole slot starting pole piece, and the transfer trolley moves forward to the plate arrangement device. The transfer trolley lifting device descends, and the trolley places the whole slot starting pole piece on the arrangement comb of the plate arrangement rack for use in the next round of production slots. After placement, the transfer trolley returns to the original position.

[0029] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for automated production of electrolytic cobalt plate starting pieces, characterized in that: The following steps are involved: S1 cleaning: The qualified whole slot titanium seed plate is hoisted out from the starting pole piece, and after three-level clean water washing, the temperature of the washing water is controlled between 40℃-99℃, and the pH value is 6-8; then it is hoisted to the receiving plate chain conveyor and conveyed to the starting pole piece automatic stripping robot through the chain; S2 automatic stripping: The titanium seed plate transfer device moves the titanium seed plate with sheet horizontally to the stripping position, and the automatic stripping robot performs the stripping. The stripped titanium plate is placed on the chain conveyor by the stripping manipulator, and then transported to the continuous annealing belt furnace by the chain conveyor. The titanium seed plate transfer device removes the stripped titanium seed plate and places it on the plate rack, and the crane returns it to the starting electrode production tank; S3 annealing: The starting electrode is subjected to heating annealing and cooling in a continuous belt annealing furnace under the annealing temperature curve set in the process; S4 flat plate: The starting pole piece after being processed by the belt annealing furnace is transported to the precision leveling roller through the translation mechanism and the conveying roller group to level the starting pole piece. The leveled starting pole piece is sucked, translated, lifted and lowered by the vacuum adsorption device to the starting pole piece storage box, and then the starting pole piece storage box is further transported to the shearing unit for edge and ear shearing through the transmission device; S5 edge trimming: The edge trimming unit sucks the sheet from the starting sheet storage box through a vacuum adsorption device, lifts and lowers, translates, and places the sheet on the conveying roller group. The conveying roller group sends the starting sheet to the horizontal biting roller group, and the horizontal sides are cut to the required size by the horizontal cutter; after the starting sheet is sent to the longitudinal biting roller group by the conveying roller group with a 90-degree angle, the longitudinal sides are cut to the required size by the longitudinal cutter. After shearing, the starting sheet that meets the requirements is transported to the embossing unit by the conveying roller group, and the sheared scraps enter the scrap collection box through the edge chute; S6 Embossing: After precise leveling and trimming, the starting pole piece that meets the requirements is sent to the embossing device by the conveying roller group for transverse embossing. After the reversing device changes direction by 90 degrees, longitudinal embossing is carried out. After embossing, the qualified starting pole piece ears fall into the starting pole piece box and are transferred to the starting pole piece welding ear process through the transmission device. S7 ear cutting: The ear cutting group sucks the sheet from the starting electrode storage box through the vacuum adsorption device, lifts and lowers, translates, and puts the sheet on the conveying roller group. The conveying roller group sends the starting electrode to the horizontal biting roller group, and the horizontal cutter cuts the two horizontal sides to meet the required length of the ear. After the starting electrode is sent to the longitudinal biting roller group by the conveying roller group with a 90-degree angle, the longitudinal multi-blade cutter cuts the longitudinal side to meet the required width of the ear. The qualified starting electrode ear falls into the ear box and is transferred to the starting electrode welding ear process through the transmission device. The sheared scraps enter the scrap collection box through the edge chute; S8: The copper rod welding mechanism sucks the lug out of the lug box through the suction device and puts it into the lug chute. The lug slides down to the lug insertion / lug hanging station of the starting pole piece. The chain conveyor delivers the conductive copper rod to the lug insertion station of the starting pole piece. Prepare for welding. A batch of conductive rods are transported to the conductive rod box by forklift. The conductive rods are separated and transported to the roller transport mechanism by the conductive rod distribution and loading mechanism. The conductive rods are then pushed into the specified position by the pushing mechanism to form a seamless connection with the lug. The starting pole piece with the rods and lugs hung on the station is welded. S9 plate arrangement: the plate arrangement system flips the welded horizontally placed starting pole piece 90 degrees to a vertical state, and the quick chain transports the starting pole piece to the plate shifting station, and moves the welded starting pole piece horizontally to the plate arrangement chain conveyor station. After there are arranged whole slot starting pole pieces on the plate arrangement chain, the transfer trolley retreats to the plate arrangement chain position. After arriving, the transfer trolley lifting device rises, the trolley lifts the whole slot starting pole piece, and the transfer trolley moves forward to the plate arrangement device. The transfer trolley lifting device descends, and the trolley places the whole slot starting pole piece on the arrangement comb of the plate arrangement rack for use in the next round of production slots. After placement, the transfer trolley returns to the original position.

2. The method for automated production of a starting electrode for an electrolytic cobalt plate according to claim 1, characterized in that: In step S2, the automatic stripping robot strips the starting electrode sheet by mechanical vibration, and adsorbs the cobalt starting electrode sheet peeled off from the seed plate by electromagnetic adsorption or vacuum suction cup adsorption.

3. The method for automated production of a starting electrode for electrolytic cobalt plate according to claim 1, characterized in that: In step S3, the conveying mode of the annealing furnace used for the annealing of the starting pole piece is any one of mesh belt type, steel belt type, and roller chain type; the protective gas used in the annealing furnace of the starting pole piece is any one of nitrogen, hydrogen, and ammonia decomposition gas. Annealing is carried out under a protective atmosphere, and the treated starting pole piece does not need to be pickled again; the annealing temperature used in the annealing furnace of the starting pole piece is 400℃-800℃, the annealing heating and cooling rates are 2℃ / min-10℃ / min, the annealing holding time is 1 hour to 4 hours, and the annealing cooling rate is 2℃ / min-10℃ / min.

4. The method for automated production of a starting electrode for an electrolytic cobalt plate according to claim 1, characterized in that: In step S4, the flat plate system includes a driving device, a transmission device, a precision leveling roller, an electric adjustment device, and a frame.

5. The method for automated production of electrolytic cobalt plate starting pieces according to claim 1, characterized in that: In step S5, the trimming system includes a frame, a starting sheet box, a conveying roller group, a sheet suction lifting device, a translation mechanism, a vacuum device, a shearing device, a waste collection box, and a guide chute.

6. The method for automated production of starting sheets of electrolytic cobalt plates according to claim 1, characterized in that: In step S6, the embossing system includes a driving device, a chain / gear transmission device, an embossing device, and a frame.

7. The method for automated production of electrolytic cobalt plate starting pieces according to claim 1, characterized in that: In step S7, the shearing earphone group includes a frame, a starting plate box, a conveying roller group, a suction plate lifting device, a translation mechanism, a vacuum device, a shearing device, a waste collection box, a guide chute, etc.

8. The method for automated production of electrolytic cobalt plate starting pieces according to claim 1, characterized in that: In step S8, the welding ear copper rod threading mechanism includes a lifting ear box, a sheet suction device, a lifting ear dropping mechanism, a conductive rod side supply device, a slide chute, a pneumatic device, a frame, etc.; the welding ear is composed of a positioning device, an automatic resistance welding machine, and a frame.

9. The method for automated production of electrolytic cobalt plate starting pieces according to claim 1, characterized in that: In step S9, the plate arrangement system includes a frame, a driving device, a transmission device, a walking device, and a lifting conveyor.

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