Composite anode conducting rod for producing electrolytic nickel powder

Abstract

The utility model discloses a composite anode conducting rod for producing electrolytic nickel powder. According to the overall structural design of nickel-coated copper, a lifting lug is made of a pure nickel plate material, the outer layer of the anode conducting rod is coated with a nano anticorrosive coating, only the bottoms of the two ends of the conducting rod are cut to expose a copper core, and a block-shaped copper sheet is welded below the copper core. A nickel plate with the copper core area of 900 mm < 2 > and the thickness of 3 mm is adopted as the conducting rod, and the nickel-coated copper structure replaces a pure nickel conducting rod, so that the conductivity of the conducting rod is effectively improved, and the heating value of the conducting rod is reduced; secondly, corrosion of nickel on the surface layer under the action of Cl <->, NH3 and high temperature is avoided through the nano anti-corrosion coating; the copper core of the conductive contact surface is exposed to realize contact between copper and copper of a mother disc, the design of the copper sheet below the exposed copper core effectively increases the conductive contact area, and cathode and anode short circuit caused by deviation of the conductive rod is prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of conductive pole, specifically relates to a composite anode conductive pole for producing electrolytic nickel powder. BACKGROUND

[0002] The electrolytic nickel powder production adopts chlorination system, uses pure red copper as the conductive busbar, fixes the busbar with the screw, and uses pure nickel conductive pole for conducting electricity. The production process requires short time interval to continuously brush powder to ensure the physical index of the nickel powder particles. The brush head brings electrolyte droplets to the busbar during the brushing process, and a layer of crystal is formed between the conductive pole and the busbar. The standard electrode potential of copper is +0.337V, the standard electrode potential of nickel is -0.250V, the potential difference is 0.587V, and when the contact distance between the two metals is less than 2.5*10-8mm, electrochemical corrosion will be formed in the humid environment. With the increase of temperature and the entry of salt and acid medium, the corrosion effect will be rapidly accelerated, resulting in rapid corrosion of the busbar. Therefore, the crystal produces electrochemical reaction under the action of electricity, which causes serious corrosion of the busbar. The surface of the busbar is corroded to form a groove for a long time. The contact between the conductive pole and the busbar is poor, the conductive pole is heated, a large amount of electric energy is converted into heat energy loss, and the service life of the busbar is short. The product processing cost is increased. CONTENT

[0003] The utility model provides a composite anode conductive pole for producing electrolytic nickel powder, and aims at solving the problem of low conductive efficiency and short service life of the busbar caused by electrochemical corrosion.

[0004] Therefore, the utility model adopts the following technical scheme:

[0005] A composite anode conductive pole for producing electrolytic nickel powder, the anode conductive pole is a conductive copper core, the conductive copper core is wrapped with a pure nickel cladding layer, a plurality of interval arranged pure nickel lugs are connected to the middle of the anode conductive pole, and a nano anti-corrosion coating is coated on the outer surface of the pure nickel cladding layer; the pure nickel cladding layer is cut at the bottom of the front and rear ends of the anode conductive pole to expose the internal copper core, and a block-shaped copper sheet is welded below the copper core.

[0006] Further, the nickel-coated copper overall structure is designed, a 3mm-thick nickel plate is covered on the surface of the copper core with a square cross section of 900mm 2 , the copper core and the nickel plate are compacted to realize seamless connection (including both ends), and the nickel plate joint is completely welded without gap.

[0007] Further, a square lug with a thickness of 1cm is welded in the middle of the anode conductive pole, and parallel holes are formed at the bottom of the lug. The lug is fixed to the anode plate by screws, and the lug is made of nickel material to reduce the corrosion of the electrolyte.

[0008] The surface of the anode conductive rod is entirely coated with a nano anticorrosion coating except for the exposed conductive parts at both ends, so as to avoid corrosion of the surface layer of nickel under the action of Cl-, NH3 and high temperature during use. A square copper sheet is welded to the exposed copper conductive contact surface of the conductive rod, so as to increase the conductive area and ensure stability of the conductive rod.

[0009] The utility model discloses the beneficial effect lies in: the utility model discloses the design comprehensively considers the influence of environmental atmosphere, solution composition in the production process of electrolytic nickel powder to the material quality of conductive rod, and the conductive performance of giving consideration to promoting, service life cycle are simultaneously given, effectively avoid the influence of other element material quality to product quality, and the overall light and handy design of conductive rod can shorten the distance between electrolytic cathode and anode, greatly reduce the tank voltage, reduce the power consumption. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 For the structure of the utility model Figure 1 ;

[0011] Figure 2 For the structure of the utility model Figure 2 ;

[0012] In the drawing: 1-conductive copper core; 2-pure nickel cladding layer; 3-pure nickel lug; 4-nano anticorrosion coating; 5-copper conductive balancing module. DETAILED DESCRIPTION

[0013] The utility model will be further described below in combination with the drawings and specific embodiments:

[0014] As Figure 1 And 2 Shown, in the square conductive copper core 1 outer pressing a layer of pure nickel shell cladding layer 2, guarantee two kinds of metal tight combination no gap, with nickel block both ends weld closed, avoid the corrosive gas solution intrusion during use. In the middle of the conductive surface of the conductive rod welds the pure nickel lug 3 that has been punched, facilitate the anode fixed operation during use. The surface of the conductive rod is sprayed with a nano anticorrosion coating 4, and the coating needs to cover the whole conductive rod and the lug welding seam. The two conductive surfaces of the conductive rod are cut to expose the conductive copper core 1 about 100mm long, and the copper conductive balancing module 5 is welded below the copper core, so as to increase the conductive contact area and increase the stability.

Claims

1. A composite anode conductor rod for producing electrolytic nickel powder, characterized by, The anode conductive rod is made of a conductive copper core, and the conductive copper core is wrapped with a pure nickel cladding layer; a plurality of spaced pure nickel lugs are connected to the middle of the anode conductive rod, and a nano anti-corrosion coating is applied to the outside of the pure nickel cladding layer; the pure nickel cladding layer is cut at the bottom of the front and rear ends of the anode conductive rod to expose the internal copper core, and a block-shaped copper sheet is welded below the copper core.

2. The composite anode conducting rod for producing electrolytic nickel powder according to claim 1, characterized by The pure nickel cladding layer is made of a 3mm-thick nickel plate, and the nickel plate joint is welded.

3. The composite anode conducting rod for producing electrolytic nickel powder according to claim 1, characterized by A 1cm-thick square lug is welded in the middle of the anode conductive rod, and the bottom of the lug is parallelly perforated.

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