CN216585260U

CN216585260U - Negative plate for electrolytic manganese

Info

Publication number: CN216585260U
Application number: CN202120775532.8U
Authority: CN
Inventors: 彭靓艺
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-15
Filing date: 2021-04-15
Publication date: 2022-05-24
Anticipated expiration: 2031-04-15

Abstract

The utility model discloses a cathode plate for electrolytic manganese, which comprises a cathode plate and a composite conductive beam, wherein the composite conductive beam comprises a stainless steel outer layer and a monocrystalline copper bar wrapped inside the stainless steel outer layer, and the stainless steel outer layer of the composite conductive beam is fixed on the top of the cathode plate which is vertically placed. One end of the composite conductive beam extends out of the cathode plate, and the composite conductive beam is provided with an opening on the stainless steel outer layer outside the cathode plate and exposes out of the inner single crystal copper bar. The stainless steel cathode plate is uniformly provided with openings. The conductive beam adopts a composite rolling and drawing process to enable the stainless steel conductive copper bar to be metallurgically and tightly compounded, and effectively improves the conductivity, corrosion resistance and mechanical property. In addition, the stainless steel pole plate is directly welded on the stainless steel protective layer and is provided with the opening, so that the energy loss caused by resistance increase due to bolt corrosion looseness in a bolt fixing mode adopted in the prior art is avoided, the corrosion resistance of the joint is improved, and meanwhile, the opening releases stress to avoid cracking.

Description

Negative plate for electrolytic manganese

Technical Field

The utility model relates to a cathode plate for electrolytic manganese.

Background

The traditional electrolytic manganese cathode plate is usually fixed on the cathode plate by a conventional conductive copper rod directly through a bolt. In a working environment, the bolt joint is often in contact with acidic electrolyte to be corroded, and the subsequent manganese separation process is used for knocking a cathode plate, so that the bolt is loosened to increase the resistance and even cause the conductive copper rod to fall off. Meanwhile, the exposed conductive copper rod is directly contacted with the electrolyte and is extremely easy to corrode, so that the resistance is increased, even if some processes adopt stainless steel outer layers for wrapping, the stainless steel outer layers and the conductive copper rod are mostly connected by gluing, the resistance between the conductive beam and the cathode plate is increased, the electric energy loss is increased, and meanwhile, the conductive beam and the cathode plate still fall off along with the lapse of time.

Disclosure of Invention

The utility model aims to provide an electrolytic manganese cathode plate with small resistance, firm and stable material combination and small electric energy loss, thereby overcoming the problems.

The technical scheme adopted by the utility model is as follows:

the cathode plate for electrolytic manganese comprises a cathode plate and a composite conductive beam, wherein the composite conductive beam comprises a stainless steel outer layer and a single crystal copper bar wrapped inside the stainless steel outer layer; one end of the composite conductive beam extends out of the cathode plate, and the composite conductive beam is provided with an opening on the stainless steel outer layer outside the cathode plate and exposes out of the inner single crystal copper bar.

The negative plate for electrolytic manganese is characterized in that three notches which are uniformly distributed are arranged at the joint of the negative plate and the composite conductive beam, the height of each notch is 30 mm, and the width of each notch is 20 mm.

According to the cathode plate for electrolytic manganese, the single crystal copper bar in the composite conductive beam is arranged in the stainless steel pipe, and the composite conductive beam is formed by multiple hot rolling, cold rolling and drawing.

The negative plate for electrolytic manganese is characterized in that the opening of the composite conductive beam is arranged on one side of the composite conductive beam, which faces the negative plate.

According to the cathode plate for electrolytic manganese, the thickness of the stainless steel outer layer of the composite conductive beam is 1.8 mm, the height of the copper bar is 20 mm, and the thickness of the copper bar is 13 mm.

The negative plate for electrolytic manganese is characterized in that a handle is fixed on the top of the stainless steel outer layer of the composite conductive beam.

The composite conductive beam has the technical effects that the composite conductive beam is provided with the opening on the stainless steel outer layer outside the cathode plate and exposes the monocrystalline copper bar inside, so that the composite conductive beam can be directly connected with the monocrystalline copper bar at the opening, and the electric conduction efficiency is improved. The stainless steel outer layer and the conductive copper bar are compounded into metallurgical combination through rolling for multiple times, the strength of the composite conductive beam is improved, and the resistance of the conductive beam is reduced as much as possible. Through the metallurgical combination of multi-pass hot rolling and cold rolling drawing, no gap is formed between the conductive copper bar and the stainless steel, and thus the electric energy loss in use is reduced. Meanwhile, due to no gap, the electrolyte cannot intrude into the conductive copper bar, so that the corrosion resistance is improved, and the corrosion phenomenon cannot occur even after long-term use. The conductive copper bar is only exposed at the opening, so that the corrosion of the copper bar is reduced, and the conductive stability of the conductive beam is improved; the conductive beam is connected with the cathode plate by welding instead of being fixed by bolts, so that the combination is firm and stable, and the corrosion resistance of the cathode plate is improved. The opening is formed in the welding position of the negative plate along the conductive beam, so that residual stress caused by welding is released, cracks are avoided, stress generated in working can be released, the anti-cracking capability is good, the service life of the negative plate is prolonged, and the quality and the anti-knocking and anti-vibrating performance of the negative plate are improved. In practical use, under the condition of ensuring the same electrolytic efficiency, the voltage of the plate cell is lower than that of the cathode plate cell pressed by other plate cells, so that the energy is relatively saved.

Drawings

Fig. 1 is a schematic diagram of the novel structure.

Fig. 2 is a sectional view a-a of fig. 1.

Fig. 3 is a sectional view B-B of fig. 1.

In the figure: 1-handle, 2-composite conductive beam, 3-single crystal copper bar, 4-gap, 5-cathode plate, 6-stainless steel outer layer.

Detailed Description

The following further describes the embodiments of the present invention with reference to the drawings.

Referring to fig. 1, the present embodiment includes a cathode plate 5, a composite conductive beam 2 welded and fixed on the upper portion of the cathode plate, and a handle 1 welded on the composite conductive beam. The conductive beam 2 is composed of a stainless steel outer layer 6 and a single crystal copper bar 3 inside, and the stainless steel outer layer 6 and the cathode plate 5 are welded and fixed through an automatic welding machine. The composite conductive beam is formed by inserting the single-crystal copper bar 3 into a stainless steel pipe and performing hot rolling, cold rolling and drawing on the stainless steel pipe in multiple passes in a composite mode, wherein the thickness of the stainless steel outer layer is 1.8 mm, the height of the copper bar is 20 mm, and the thickness of the copper bar is 13 mm. When the composite conductive beam is welded on the cathode plate 5, one end of the composite conductive beam extends out of the cathode plate, an opening is arranged on the stainless steel outer layer outside the cathode plate to expose the single crystal copper bar 3 which is directly contacted with the over current copper bar inside, and the stainless steel outer layer 6 at the other end of the composite conductive beam is completely sealed. Meanwhile, a handle 1 is welded above the stainless steel outer layer 6 of the composite conductive beam 2. Three gaps 4 are uniformly arranged at the welding positions of the cathode plate 5 and the conductive beam 2, the height of each gap is 30 mm, and the width of each gap is 20 mm.

In this embodiment, a single-crystal copper rod is inserted into a stainless steel tube, and the stainless steel tube is completely and tightly wrapped with a conductive copper bar by multiple rolling and drawing processes, and the two are metallurgically compounded into a whole. The single crystal and the metallurgy are combined, so that the resistivity of the conductive beam is effectively reduced, and the conductive stability, the corrosion resistance and the mechanical property are improved. The voltage of the cathode plate cell provided by the embodiment is lower than that of the cathode plate cell pressed by other plate cells, and is reduced by about 0.03V compared with that of the other plate cells, and better energy-saving effect can be realized due to the reduction of the voltage. The conductive beam is connected with the cathode plate by welding, so that the combination is firm and stable, the corrosion resistance is improved, the cathode plate has good anti-cracking capability, and the service life of the cathode plate is prolonged; the opening is formed in the welding position of the negative plate along the conductive beam, so that residual stress caused by welding is released, cracks are avoided, and the quality and the knocking and vibration resistance of the negative plate are improved.

Claims

1. The cathode plate for electrolytic manganese comprises a cathode plate and a composite conductive beam, wherein the composite conductive beam comprises a stainless steel outer layer and a single crystal copper bar wrapped inside the stainless steel outer layer; the composite conductive beam is characterized in that one end of the composite conductive beam extends out of the cathode plate, and the composite conductive beam is provided with an opening on the stainless steel outer layer outside the cathode plate and exposes out of the inner single crystal copper bar;

the cathode plate is provided with three notches which are uniformly distributed at the joint of the cathode plate and the composite conductive beam, wherein the height of each notch is 30 mm, and the width of each notch is 20 mm.

2. The cathode plate for electrolytic manganese of claim 1, wherein the opening of the composite conductive beam is arranged on the side of the composite conductive beam facing the cathode plate.

3. The cathode plate for electrolytic manganese as claimed in claim 1, wherein the thickness of the stainless steel outer layer of the composite conductive beam is 1.8 mm, the height of the copper bar is 20 mm, and the thickness is 13 mm.

4. The cathode plate for electrolytic manganese according to claim 1, wherein a handle is fixed on the top of the stainless steel outer layer of the composite conductive beam.