WO2013152617A1

WO2013152617A1 - Electrolysis apparatus with anode material storage tank

Info

Publication number: WO2013152617A1
Application number: PCT/CN2013/000322
Authority: WO
Inventors: 王惟华
Original assignee: Wang Weihua
Priority date: 2012-04-11
Filing date: 2013-03-19
Publication date: 2013-10-17

Abstract

An electrolysis apparatus with an anode material storage tank is applied to fields of metal electro refining, metal powder material production by electrolyzation, electrolytic recovery of waste metal and the like. The electrolysis apparatus is characterized in that the anode material storage tank is arranged on one side of an electrolytic cell, a metal inner tank of the anode material storage tank is connected with an anode plate through a conductive connecting plate, the electrolyzed anode material is oxidized to metal ions in the tank and the metal ions are distributed in the electrolytic cell by ion diffusion and circulation of an electrolyte. The anode plate is not made of the electrolyzed anode material, but a metal or an alloy which cannot be chemically dissolved by the electrolyte and is lower than the electrolyzed metal in metal activity. The electrolyzing material is added from the anode material storage tank without anode scraps. Plates in the tank are connected in series. The anode plate and the cathode are effectively combined with a plate installation notch to isolate the electrolyte. According to the electrolysis apparatus provided by the invention, the anode is not needed to replace, the anode materials are convenient to add, no anode scrap of the anode plate remains, and the use level in an anode raw material groove is low, so that the electrolysis apparatus provided by the invention, has the characteristics of energy saving, investment saving, and high production efficiency.

Description

Description An electrolytic device with an anode material storage box

[0001] The present invention relates to an electrolysis device for an aqueous solution, and more particularly to a non-residual series electrolysis device with an anode material storage tank. It is used in the fields of metal electrolytic refining, electrolytic production of metal powder materials, and waste metal electrolysis.

Background technique-

[0002] Since 1807, British scientist H. David has made a huge step forward in the electrolysis of caustic soda to produce potassium and sodium, at the level of technical equipment, production scale, quality of electrolytic products, and reduction of energy consumption. Today, there are more than 40 million tons of non-ferrous metal electrolytic refining in the world. The electrolysis of copper, lead and zinc in China alone has reached more than 15 million tons, and the amount of copper electrolysis has exceeded 5 million tons in 2011.

[0003] There are also some problems in current metal electrolytic refining processes. First, the anode remains large, and the anode material is gradually consumed during the electrolysis process, leaving 15-20% of the residual poles to be electrolyzed and left behind. These residual poles must be processed into new anode plates again, which increases the process and consumes a considerable amount of energy. Second, the replacement of the anode is troublesome, the labor intensity of the workers is large, the working environment is poor, and the working efficiency of the electrolytic cell is reduced; Third, the one-time investment of the anode material in the electrolytic cell is large, and it takes up a lot of liquidity.

[0004] In series electrolytic method, due to the low current efficiency, the casting and repairing of the anode plate is troublesome, and it is difficult to peel off the cathode deposit from the residual pole, and the electrolytic cell insulating asphalt cannot withstand the problem of high liquid temperature, and some metals in the middle of the 20th century. Electrolytic manufacturers have also stopped using.

[0005] In the disclosed invention, such as 02132682. 7 - a method for producing cathode copper by one-step electrolysis of copper, CN1036805A stainless steel anode frame direct copper electrolytic refining method, CN1854346A grid combined anode frame without residual pole direct electrolytic refining The method of purple copper is to place the anode frame in the anode plate position of the electrolytic cell, and the inner plates of the groove are connected in parallel, which has no substantial change from the conventional electrolysis method, and the anode frame is difficult to be installed and fixed, and the anode material is inconvenient. It is prone to problems such as poor contact.

[0006] In view of the above problems, the present invention uses an anode plate and an anode material as an entry point, and uses a series electrolytic technique to eliminate the need for replacement of the anode plate and no anode residue. It has the advantages of convenient addition of anode materials, low anode pressure and pressure, low liquidity required, energy saving, investment saving, good product quality and high production efficiency.

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2010. 2 Summary of the invention:

Electrolytic device with anode material storage box

[0008] An electrolysis device with an anode material storage box is characterized in that: 1. An anode material storage box is arranged on one side of the electrolysis cell, and the metal inner box is connected to the anode plate through a conductive plate, and the anode material is in the anode material. The electrochemical reaction occurs in the storage tank and is oxidized into metal ions. The metal ions are evenly distributed in the electrolytic cell through the migration, diffusion and circulation of the electrolyte. The anode material is gradually electrolyzed during the electrolysis process, leaving no residue. 2. The anode material is added in batches from the anode material storage tank, and there is no need to replace the anode plate. 3. The anode plate is not made of an anode material that is electrolyzed, but is made of a metal or alloy that is insoluble in the electrolyte and has a lower metal mobility than the metal to be electrolyzed. 4. The anode material storage box metal inner box and the conductive joint plate are made of metal or alloy material which cannot be chemically dissolved by the electrolytic solution and whose metal activity is lower than that of the electrolytic metal and has high strength. 5. Install a filter cloth on the side of the electrolyte outlet of the anode material storage box to filter the suspended solids in the electrolyte to be electrolyzed. 6. The inner plates of the electrolytic cell are connected in series, and the anode plate and the cathode plate are relatively separated by the effective combination with the plate mounting notches, and the edge of the plate is placed in the isolation slot. 7. The electrolyte is circulated through the anode material storage tank, the electrolytic cell and the electrolyte circulation isolation tank. 8. The anode mud sinks at the bottom of the anode material storage tank, and the suspended anode mud is blocked by the filter cloth in the anode material storage box.

[0009] Features of the invention:

[0010] 1. An anode material storage tank is disposed on one side of the electrolytic cell.

[0011] 1. No residual pole, the anode material is completely electrolyzed as the electrolysis continues.

[0012] 2. The anode material is conveniently added from the anode material storage box, does not need to replace the anode, does not stop production due to the replacement of the anode, and is beneficial to the use of mechanized and automated feeding equipment.

[0013] 3. The anode material is input in batches according to the daily, the anode material takes up the pressure and the pressure is low, and the required flow funds are small. In the traditional electrolysis method, the anode plate is put into the anode material for about 20 days at a time.

[0014] 4. The anode plate, the area and size of the geometric shape remain unchanged, which is beneficial to the stability of the electrolysis voltage and current, and the purity and appearance quality of the cathode electrolyte are high.

[0015] 5. The anode mud is easily discharged in the anode material storage box.

[0016] 6. The addition of the anode material does not cause wear on the electrolytic cell tank.

[0017] 7. The precious metal recovery rate is higher than that of the conventional electrolysis device.

[0018] 2. The inner plates of the slots are in series mode.

[0019] 1. Saving raw materials of electrolysis equipment. Except for the plates at both ends, no conductive busbar is needed, no intermediate conductive rods and cathode plate conductive hanging rods are required. The plates are in series mode, the system current is low, and the conductive bus bars are only used.

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2010. 2 The cable is OK.

[0020] 2. Saving energy. There is no conductive contact on the metal conductive beam, which reduces the line voltage drop; the system current has a small voltage drop.

[0021] 3. High production efficiency. There is no soft connection in the circuit of the whole system, which reduces the incidence of failures; it does not need to stop production and replace the anode plate, which improves the production efficiency.

[0022] 4. Since the pole plate series mode is adopted, the pole plate is fixed in the isolation groove, the pole plate installation deviation is small, the pole pitch is stable, and the electric field distribution is uniform.

Say

[0023] 3. The use of the isolation plate mounting slot on the electrolytic cell, the installation and removal of the cathode plate is convenient.

[0024] 4. The electrolyte is discharged from the liquid separation tank to minimize the leakage caused by the electrolyte circulation.

[0025] 5. Since the single cell voltage is high, the current book is relatively small. It is beneficial to the design, manufacture and selection of electrolytic power supply, and can adopt high-efficiency frequency-frequency electrolytic power supply.

[0026] 6. There is no other component at the top of the electrolytic cell section, which facilitates the troughing of the cathode product and facilitates the installation of environmental protection (acid mist or alkali mist) processing equipment. detailed description

[0027] The device consists of an electrolytic power source, an electrolytic cell with an anode material storage tank, an anode material, an anode plate, a cathode plate, an electrolyte, a high-position tank, a low-position tank, an electrolyte circulation pipe, and the like. As shown in Figure 10.

[0028] When electrolysis occurs, the anode material is electrochemically generated in the anode material storage tank, and is oxidized to form metal ions, and the metal ions are uniformly distributed in the electrolyte under the guidance of self-diffusion and circulating flow of the electrolyte. Under the action of the electric field, the metal ions at the cathode get electrons reduced to metal, completing the electrolysis process. The electrolyte flowing out of the high-position tank is diverted through the anode material storage tank, and after the metal ions are replenished, it flows through the anode material storage tank electrolyte outlet, flows into the electrolysis tank, passes through the electrolyte circulation isolation tank, and enters the low position from the circulating electrolyte outlet. After the tank is cleaned, the electrolyte in the lower tank is pumped to the high tank by electric pump.

[0029] The impurities in the anode material form an anode mud sinking at the bottom of the anode material storage tank, and the filter cloth at the electrolyte outlet on the side of the anode material storage tank functions to block the suspended anode mud.

[0030] A plate isolation mounting slot is disposed on both sides and a bottom of the electrolytic cell, and the anode plate and the cathode plate plate are disposed in the plate isolation mounting slot. The anode plate and the cathode plate conductive plates are mutually dependent to form a combination, as shown in Figs. 4 and 5.

[0031] The effect of the anode plate here is different from conventional electrolytic refining, and is different from electrolytic deposition, in which no oxidation occurs and no oxygen is precipitated. The conventional electrolytic method anode plate is made of an electrolytic metal material, and the anode plate of the present invention can be selected to be chemically dissolved without being electrolytically dissolved, and the metal activity is lower than that of the

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2010. 2 The specification relates to a metal or alloy material of an electrolytic metal material. Materials that can be used are titanium, stainless steel, graphite, lead, lead alloy, and the like.

[0032] The metal case in the anode material storage box is connected to the anode plate through the conductive plate and is at the same potential. The selection of the material for the metal case and the conductive plate in the anode material storage box requires a certain strength and firmness in addition to the requirement that it is not chemically dissolved by the electrolyte, and the metal activity is lower than that of the metal or alloy material of the metal material to be electrolyzed. Wear resistant. Stainless steel, titanium and other materials can be used.

[0033] The tank body of the device is made of a plate material, such as a plastic plate or a glass plate; the other is made of a concrete aggregate, and the plate is isolated and installed with a material such as a notch, and is poured. After the installation. When the anode plate area is large, an insulating grid (see Figure 10) can be added on the outside of the anode plate to prevent deformation of the anode plate. The tank body shall not be made of steel-plastic composite material.

[0034] Due to the use of the plate series method, the electrolysis current is small, generally below 1000 amps, which is advantageous for selecting a high-efficiency high-frequency electrolysis power source. In general, one or several electrolytic monomers can form an electrolytic system.

[0035] The use of the electrolyte and the additive is substantially the same as that of the conventional conventional electrolysis method, and the circulation amount of the electrolyte should be slightly larger than that of the conventional electrolysis method.

[0036] Because the system electrolysis voltage is high, the worker must prevent electric shock. When working on the cell, avoid direct contact between the conductive metal parts and the electrolyte. Use insulated gloves or insulated objects to scrape the powder material and clean the surface of the tank; high-position tanks, low-level tanks, and pipes should be made of non-conductive materials such as plastic.

[0037] The anode material to be electrolyzed may be in the form of a sheet, a block, a sphere, a wire, or the like. When the electrolytic material has different shape structures, different baffles are arranged inside the anode material storage box to prevent the anode material from accumulating and blocking the electrolyte liquid flow path.

[0038] According to the present invention, the existing electrolytic refining manufacturers can double the production capacity without increasing the stock of raw materials; in the case of the same production scale, the consumption of raw materials for the raw materials will be greatly reduced.

[0039] Example 1: Metal electrolytic refining and direct electrolytic refining and recycling of scrap metal

[0040] The device is used for metal electrolytic refining (such as copper, lead, zinc, etc.), and the crude anode material is placed in an anode material storage box. Under the action of current, the anode material is oxidized into ions and stored in the electrolyte. in. The metal ion anode obtains electrons to form a solid metal, and completes electrolytic refining. As the electrolysis process continues, the anode material is continuously reduced and the anode material only needs to be replenished from the anode material storage tank. When electrolysis is performed for a certain period of time, the cathode plate is taken out to obtain an electrolytically refined pure metal.

Embodiment 2: Electrolytic metal powder material

[0042] When electrolytic powder material (such as copper powder, nickel powder, zinc powder, etc.), the raw material metal is placed in the anode material

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2010. 2 In the storage box, the powder material obtained by electrolysis is covered on the anode plate. Since there is no conductive strip on the electrolytic cell body connected with the parallel electrolysis plates, it is not necessary to take out the scraping powder of the anode plate, and the powder can be regularly scraped in the groove to sink. The powder at the bottom is circulated out of the tank by an electric pump or by using an electrolyte to achieve continuous uninterrupted continuous production. As the electrolysis process continues, the anode material is continuously reduced, and the anode material only needs to be replenished from the anode material storage tank. The anode slime does not contaminate the powder material that sinks at the bottom of the tank due to deposition in the anode material storage tank.

BRIEF DESCRIPTION OF THE DRAWINGS:

[0043] FIG. 1 Electrolytic cell structure diagram

Say

2 is a side view of the electrolytic cell

[0045] FIG. 3 Top view of the electrolytic cell (only a part of the drawing is shown)

[0046] FIG. 4 Side view of the anode plate

Figure 5 is a side view of the cathode plate

[0048] FIG. 6 Structure diagram of electrolyte circulation isolation groove

[0049] FIG. 7 Anode material storage metal inner box structure diagram

[0050] FIG. 8 Block mounting slot structure diagram

[0051] FIG. 9 Anode material storage box and metal inner box structure diagram

[0052] FIG. 10 Structure of the anode plate and the insulating grid

[0053] FIG. 11 Electrolysis system block diagram

Symbol Description:

[0054] 1 anode material storage box, 2 cathode plate, 3 anode plate, 4 anode material storage box electrolyte outlet, 5 electrolyte circulating liquid outlet pipe, 6 electrolyte circulation outlet, 7, plate mounting slot, 8, Anode material storage box metal inner box, 9, electrolyte drain, 10 filter cloth, ®, electrolytic cell, @, electrolyte circulation isolation tank, ®, conductive plate @, electrolyte pipe, <©, cable @, insulation Grille.

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2010. 2

Claims

Claim

1. An electrolysis device with anode material storage, characterized in that: an anode material storage box is arranged on one side of the electrolytic cell, and the metal inner box is connected with the anode plate through a conductive plate, and the anode material is in the anode material storage box. The electrochemical reaction occurs and is oxidized into metal ions. The metal ions are evenly distributed in the electrolytic cell through ion migration, diffusion and circulation of the electrolyte. The anode material is gradually electrolyzed during the electrolysis process, leaving no residue.

2. An electrolysis apparatus according to claim 1, wherein: the anode material is added in batches from the anode material storage tank, and the anode plate does not need to be replaced.

3. The electrolysis apparatus according to claim 1, wherein the anode plate is not made of an anode material to be electrolyzed, but is selected from a metal or an alloy which is insoluble in the electrolyte and whose metal mobility is lower than that of the metal to be electrolyzed.

4. The electrolysis device according to claim 1, wherein: the anode material storage box metal inner box and the conductive connecting plate are made of metal which is not chemically dissolved by the electrolyte, has a lower metal mobility than the electrolytic metal and has higher strength or Made of alloy materials.

The electrolysis apparatus according to claim 1, wherein a filter cloth is disposed on the side of the electrolytic solution outlet of the anode material storage tank to filter the suspended matter in the electrolytic solution to be electrolyzed.

6. The electrolysis device according to claim 1, wherein: the inner plates of the electrolysis cell are connected in series, and the anode plate and the cathode plate are relatively separated from each other by an effective combination with the plate mounting notches, and the edge of the plate is opposite. Placed in the isolation slot.

7. The electrolysis apparatus according to claim 1, wherein the electrolyte is circulated through the anode material storage tank, the electrolytic cell, and the electrolyte circulation isolation tank, respectively.

8. The electrolysis apparatus according to claim 1, wherein: the anode mud sinks at the bottom of the anode material storage tank, and the suspended anode mud is blocked by the filter cloth in the anode material storage tank.

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