Electrodeposition equipment

Abstract

The invention discloses electrodeposition equipment, and relates to the technical field of metal electrodeposition, wastewater treatment and resource recycling, the electrodeposition equipment comprises an electrodeposition cell, an electrodeposition assembly and a vibrator, an electrodeposition cavity is formed in the electrodeposition cell, and the electrodeposition cavity comprises a reaction cavity and a collection cavity; the cavity wall of the collecting cavity is gradually shrunk; an anode piece and a cathode piece in the electrodeposition assembly are both located in the reaction cavity, and the proportion of conductive areas of the anode piece and the cathode piece is freely adjusted; the vibrator is used for vibrating the cathode piece. According to the technical scheme, after the vibrator vibrates the cathode piece, metal powder is vibrated to fall off from the cathode piece and sinks into the collecting cavity from the reaction cavity, and the metal powder is taken out from the discharging opening to be subjected to filter pressing and dewatering; in the whole electrodeposition collection process, the metal powder can be taken out without closing the electrodeposition cell and stopping the electrodeposition cell; and meanwhile, the electrodeposition device can obtain relatively high cathode current density under the condition of relatively low anode current density, so that the cathode can obtain an electrodeposition effect of adjusting the fineness of metal powder under the condition of protecting the service life of the anode.

Description

Technical Field

[0001] The invention relates to the technical field of metal electrowinning, wastewater treatment and resource recovery, and in particular to an electrowinning device. Background Art

[0002] Electrowinning equipment has an anode (titanium anode, lead anode, graphite anode, etc.), a cathode and an electrowinning tank. Electrowinning equipment is a process in which metal ions in the liquid are directly reduced to elemental metal from the cathode by supplying a DC power supply and matching a liquid inlet and outlet pump. Electrowinning equipment is mostly used in wastewater treatment, hydrometallurgy, metal recovery and other fields.

[0003] Currently, most of the electrowinning equipment on the market are cyclone electrowinning equipment and straight-plate electrowinning equipment. Cyclone electrowinning equipment is generally a columnar structure, with the center column generally being the anode and the outer ring pipe being the cathode. The resulting metal is generally attached to the cathode surface and is taken out regularly for copper stripping operations.

[0004] However, in order to reduce the risk of on-site acid gas leakage, the electrolytic cell of this type of electrolytic equipment is generally a closed structure, which makes the process of removing the obtained metal more complicated, and because of the structural design of the cell body, the cell body is not airtight. When the electrolytic cell cavity is in a positive pressure state, it is easy to cause the electrolytic waste gas to be easily dissipated into the environment in an unorganized manner. In addition, the cathode conductive area and the anode conductive area of ​​this electrolytic device are generally close. Therefore, if you consider electrolytic deposition to obtain powdered metal, the anode must bear a larger current density, which leads to high requirements for the anode material or a short anode life. Summary of the invention

[0005] The main purpose of the present invention is to provide an electrolytic deposition device that can achieve the production purpose of continuously electrolytically producing metal powder under a larger cathode current density and a smaller anode current density and while maintaining a good sealing state of the electrolytic deposition cell and without stopping the electrolytic deposition.

[0006] To achieve the above object, the electrolytic deposition equipment proposed by the present invention comprises:

[0007] An electrolytic cell, wherein the electrolytic cell is formed with an electrolytic chamber, wherein the electrolytic chamber includes a reaction chamber and a collection chamber that are connected to each other, wherein the reaction chamber is located above the collection chamber; a liquid inlet and a liquid outlet are formed on the side wall of the reaction chamber, and a discharge port is formed on the bottom wall of the collection chamber; the chamber wall of the collection chamber gradually shrinks in a direction away from the reaction chamber, and the discharge port is connected to the bottom space of the collection chamber;

[0008] An electrolytic deposition assembly, the electrolytic deposition assembly comprising an anode member and a cathode member, the anode member and the cathode member are both disposed in the electrolytic deposition cell and are both located in the reaction chamber; the cathode member is formed with an inner cavity; and

[0009] A vibrator is arranged on the cathode component and is located in the inner cavity of the cathode tube body.

[0010] In one embodiment, the anode member and the cathode member are both cylindrical.

[0011] In one embodiment, the electrolytic deposition assembly includes a plurality of anode members, each of which is disposed in the electrolytic deposition cell.

[0012] In one embodiment, the sum of the conductive areas of the anode components is S1, the conductive area of ​​the cathode component is S2, and 1.0≤S1:S2≤1000.

[0013] In one embodiment, the electrolytic deposition assembly further comprises a flange locking member, which is disposed in the electrolytic deposition cell and connected to the anode member; the flange locking member is used to lock the anode member in the electrolytic deposition cell.

[0014] In one embodiment, the electrolytic cell is provided with a mounting hole, the cathode component is inserted into the mounting hole and abuts against the hole wall of the mounting hole; the flange locking component is provided on the outer wall of the electrolytic cell.

[0015] In one embodiment, the chamber wall of the electrolysis chamber is further formed with an exhaust port, and the exhaust port is used to connect to a waste gas collection device.

[0016] In one embodiment, the electrolytic cell comprises a cell body and a sealing cover, wherein the sealing cover is detachably connected to the cell body, and the cell body and the sealing cover enclose the electrolytic chamber.

[0017] In one embodiment, the cathode component is disposed on the sealing cover.

[0018] In the technical solution of the present invention, the electrolysis equipment includes an electrolysis cell, an electrolysis assembly and a vibrator. The electrolysis cell forms an electrolysis chamber, and the electrolysis chamber includes a reaction chamber and a collecting chamber that are connected. The reaction chamber is located above the collecting chamber. A liquid inlet and a liquid outlet are formed on the side wall of the reaction chamber, and a discharge port is formed on the bottom wall of the collecting chamber. The cavity wall of the collecting chamber gradually shrinks in a direction away from the reaction chamber, and the discharge port is connected to the bottom space of the collecting chamber. The electrolysis assembly includes an anode component and a cathode component, and the anode component and the cathode component are both arranged in the electrolysis cell and are both located in the reaction chamber. The cathode component forms an inner cavity. The vibrator is arranged on the cathode component and is located in the inner cavity. In the technical solution of the present invention, after the electrolytic reaction, the metal elements in the electrolytic solution are all reacted from the cathode in the form of metal powder. Part of the powder is deposited in the collection chamber during the reaction, and part of the powder is precipitated and attached to the cathode part. After the vibrator vibrates the cathode part, all the metal powder is vibrated off the cathode part. Since the density of the metal powder is greater than that of water or the electrolytic solution, the metal powder will sink from the reaction chamber into the collection chamber; and the setting of the collection chamber being wide at the top and narrow at the bottom can ensure that the sunken metal powder can be concentrated at the discharge port. When the metal powder at the discharge port accumulates to a certain amount, the user uses a pump to pump it from the discharge port to the filter bag or filter press, and the metal powder is obtained after treatment, and the electrolytic solution can be returned to the relevant electrolytic solution storage device again; the entire electrolytic collection process does not require opening the electrolytic tank or stopping the machine, and the metal powder can be taken out while keeping the electrolytic tank well sealed, which is convenient for users to use and improves the continuous operation efficiency of the electrolytic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 the structures shown in these drawings without paying creative work.

[0020] Figure 1 A schematic structural diagram of an embodiment of an electrolytic deposition device provided by the present invention;

[0021] Figure 2 for Figure 1 Section view along AA;

[0022] Figure 3 It is a schematic diagram of the structure of the sealing cover in the electrolytic deposition equipment.

[0023] Description of Figure Numbers:

[0024] Label name Label name 1000 Electrolytic Equipment 1e Exhaust port 1 Electrolytic Cell 11 Tank 1a Electrodeposition chamber 12 Sealing cover 1a1 Reaction chamber 21 Anode 1a2 Collection chamber 22 Cathode 1b Liquid inlet 22a Inner cavity 1c Liquid outlet 23 Flange locking parts 1d Discharge port 31 Vibrator

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] The present invention provides an electroplating device 1000 .

[0030] See also Figure 1 and Figure 2 In one embodiment of the present invention, the electrolysis equipment 1000 includes an electrolysis cell 1, an electrolysis assembly and a vibrator 31. The electrolysis cell 1 is formed with an electrolysis chamber 1a. The electrolysis chamber 1a includes a reaction chamber 1a1 and a collecting chamber 1a2 that are connected to each other. The reaction chamber 1a1 is located above the collecting chamber 1a2. A liquid inlet 1b and a liquid outlet 1c are formed on the side wall of the reaction chamber 1a1, and a discharge port 1d is formed on the bottom wall of the collecting chamber 1a2. The cavity wall of the collecting chamber 1a2 gradually shrinks in a direction away from the reaction chamber 1a1, and the discharge port 1d is connected to the bottom space of the collecting chamber 1a2. The electrolysis assembly includes an anode member 21 and a cathode member 22. The anode member 21 and the cathode member 22 are both arranged in the electrolysis cell 1 and are both located in the reaction chamber 1a1. The cathode member 22 forms an inner cavity 22a. The vibrator 31 is arranged on the cathode member 22 and is located in the inner cavity 22a.

[0031] In the technical solution of the present invention, after the electrolytic reaction, the metal elements in the electrolytic solution are electrolytically deposited and attached to the cathode part 22. After the vibrator 31 vibrates the cathode part 22, the metal powder is vibrated off the cathode part 22. Since the density of the metal powder is greater than that of water or the electrolytic solution, the metal powder will sink from the reaction chamber 1a1 into the collection chamber 1a2; and the setting of the collection chamber 1a2 being wide at the top and narrow at the bottom can ensure that the sunken metal powder can be concentrated at the discharge port 1d. When the metal powder at the discharge port 1d accumulates to a certain amount, the user uses a pump to pump the slurry water from the discharge port 1d to the filter bag of the filter or the filter press for treatment to obtain the metal powder, and the filtered liquid returns to the storage barrel along the pipeline; the entire electrolytic collection process does not require opening the electrolytic tank 1 or stopping the machine, and the metal powder can be taken out while keeping the electrolytic tank 1 in a well-sealed state, which is convenient for users to use and improves the continuous operation efficiency of electrolytic deposition.

[0032] At the same time, the vibrator 31 is placed in the inner cavity 22 a , and the inner cavity 22 a is completely sealed relative to the electrolytic solution, thereby effectively preventing the vibrator 31 from being corroded by the electrolytic solution, thereby extending the service life of the vibrator 31 .

[0033] It can be understood that the shapes of the anode member 21 and the cathode member 22 are cylindrical (cylindrical). Figure 1 and Figure 2 In one embodiment of the present invention, the anode member 21 and the cathode member 22 are both cylindrical. The cylindrical anode member 21 and the cathode member 22 can be locked and disassembled for maintenance in cooperation with flanges or joints, so that the cathode member 22 and the portion of the anode member 21 extending out of the cover of the electrolytic cell 1 can be more tightly sealed, and even when the electrolytic cell 1 is in a positive pressure state, there will be no gas leakage.

[0034] It should be noted that the electrolytic assembly includes a plurality of anode components 21. Figure 1 , Figure 2 as well as Figure 3 In one embodiment of the present invention, the electrolytic assembly includes ten anode members 21, each of which is disposed in the electrolytic cell 1. Increasing the number of anode members 21 can increase the anode conductive area of ​​the electrolytic reaction without increasing the anode current density, thereby increasing the amount of anode conductive electricity (the anode current density is limited by the anode material and too high anode current density will cause the anode life to be shortened), thereby improving the electrolytic efficiency and the ability to process electrolytic liquid, and optimizing the service life of the anode; ten anode members 21 can provide a large amount of current, which helps to drive the electrolytic reaction more evenly and improve the electrolytic effect; at the same time, evenly distributing ten anode members 21 in the electrolytic cell 1 can optimize the utilization of the internal space of the electrolytic cell 1 and improve the efficiency of the electrolytic cell 1. Therefore, it is preferred that the electrolytic assembly includes an anode member 21.

[0035] It should be noted that current density is generally divided into cathode current density and anode current density. The cathode current density determines the form of the electrolytic metal. Generally, the higher the cathode current density, the finer the metal deposition particles and the easier it is to become a powder. The advantage of high current density is that it can increase the rate of metal electrolytic reduction, while the disadvantage is that it leads to uneven distribution of ions in the electrolytic solution, resulting in serious concentration polarization, an increase in side reactions at the cathode and cathode, and a waste of electrical energy. If the anode current density is too high, the anode life will be greatly shortened.

[0036] In one embodiment of the present invention, the sum of the conductive areas of the anode components 21 is S1, and the conductive area of ​​the cathode component 22 is S2, 1.0≤S1:S2≤1000. This arrangement enables the anode component 21 to maintain a lower current density, thereby protecting the anode and extending the service life of the anode; at the same time, the cathode component 22 can obtain a higher current density, so that the precipitated metal is more likely to be in powder form, which is convenient for collection or adapting to the production requirements of specific metal powder products.

[0037] See also Figure 1 , Figure 2 as well as Figure 3 In one embodiment of the present invention, the electrolytic assembly further includes a flange locking member 23, which is disposed on the electrolytic cell 1 and connected to the anode member 21; the flange locking member 23 is used to lock the anode member 21 to the electrolytic cell 1. The use of the flange locking member 23 can ensure a tight connection between the anode member 21 and the electrolytic cell 1, that is, the anode is fixed and the anode and the cover are in a tightly closed state; the use of the flange locking member 23 can avoid the existence of gaps at the connection of the electrolytic cell 1, and avoid the risk of leakage of the electrolytic solution and the electrolytic gas.

[0038] See also Figure 1 , Figure 2 as well as Figure 3 In one embodiment of the present invention, the electrolytic cell 1 is provided with a mounting hole, the cathode member 22 is inserted into the mounting hole, and is tightly connected to the hole wall of the mounting hole through a fastener; the flange locking member 23 is provided on the outer wall of the electrolytic cell 1. The flange locking member 23 is provided on the outer wall, and can fix the anode member 21 without direct contact with the electrolytic solution, thereby reducing the corrosion of the anode conductive metal member (generally copper material) and extending its service life.

[0039] See also Figure 2 In one embodiment of the present invention, the wall of the electrolytic chamber 1a is also formed with an exhaust port 1e, and the exhaust port 1e is used to connect the exhaust gas collection device. Harmful gases may be generated during the electrolytic process. By using the exhaust port 1e in conjunction with the exhaust gas treatment device, it can be ensured that these gases are properly treated to avoid causing physical and mental harm to the operator, while also reducing pollution to the environment. It should be noted that the exhaust gas treatment device can be, but is not limited to, a washing tower, an alkali solution tank, and a condensing tower.

[0040] See also Figure 1 and Figure 2 In one embodiment of the present invention, the electrolytic cell 1 comprises a cell body 11 and a sealing cover 12, wherein the sealing cover 12 is detachably connected to the cell body 11, and the cell body 11 and the sealing cover 12 enclose an electrolytic cell chamber 1a. The detachable sealing cover 12 facilitates quick opening of the electrolytic cell 1 for maintenance or emergency treatment when necessary, thereby improving the safety of operation.

[0041] See also Figure 1 and Figure 2 In one embodiment of the present invention, the cathode member 22 is disposed on the sealing cover 12. The cathode member 22 is disposed on the sealing cover 12, so that the installation and replacement of the cathode member 22 are more convenient, because the detachability of the sealing cover 12 allows the cathode member 22 to be quickly disassembled; at the same time, the cathode member 22 is located on the sealing cover 12 and is tightly connected to the sealing cover 12 through a gasket and a fastener, thereby preventing leakage of the electrolyte and the electrolytic gas.

[0042] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electrowinning device (1000), characterized in that: include: An electrolytic cell (1), wherein the electrolytic cell (1) is formed with an electrolytic chamber (1a), wherein the electrolytic chamber (1a) comprises a reaction chamber (1a1) and a collection chamber (1a2) which are connected to each other, wherein the reaction chamber (1a1) is located above the collection chamber (1a2); a liquid inlet (1b) and a liquid outlet (1c) are formed on the side wall of the reaction chamber (1a1), and a discharge port (1d) is formed on the bottom wall of the collection chamber (1a2); the chamber wall of the collection chamber (1a2) gradually shrinks in a direction away from the reaction chamber (1a1), and the discharge port (1d) is connected to the bottom space of the collection chamber (1a2); An electrolytic deposition assembly, the electrolytic deposition assembly comprising an anode component (21) and a cathode component (22), the anode component (21) and the cathode component (22) being both arranged in the electrolytic deposition cell (1) and both located in the reaction chamber (1a1); the cathode component (22) forming an inner cavity (22a); and A vibrator (31), wherein the vibrator (31) is disposed on the cathode member (22) and is located in the inner cavity (22a).

2. The electroplating device (1000) according to claim 1, characterized in that: The anode component (21) and the cathode component (22) are both cylindrical.

3. The electroplating device (1000) according to claim 2, characterized in that: The electrolytic deposition assembly comprises a plurality of anode components (21), and each of the anode components (21) is arranged in the electrolytic deposition cell (1).

4. The electroplating device (1000) according to claim 3, characterized in that: The sum of the conductive areas of the anode components (21) is S1, the conductive area of ​​the cathode component (22) is S2, and 1.0≤S1:S2≤1000.

5. The electroplating device (1000) according to claim 1, characterized in that: The electrolytic deposition assembly further comprises a flange locking member (23), wherein the flange locking member (23) is arranged on the electrolytic deposition cell (1) and connected to the anode member (21); the flange locking member (23) is used to lock the anode member (21) on the electrolytic deposition cell (1).

6. The electrolytic deposition device (1000) according to claim 5, characterized in that: The electrolytic cell (1) is provided with a mounting hole, the cathode component (22) is inserted into the mounting hole and abuts against the hole wall of the mounting hole; the flange locking component (23) is arranged on the outer wall of the electrolytic cell (1).

7. The electrowinning device (1000) according to any one of claims 1 to 6, characterized in that: The chamber wall of the electrolysis chamber (1a) is also formed with an exhaust port (1e), and the exhaust port (1e) is used to connect to an exhaust gas collection device.

8. The electrowinning device (1000) according to any one of claims 1 to 6, characterized in that: The electrolytic cell (1) comprises a cell body (11) and a sealing cover (12); the sealing cover (12) is detachably connected to the cell body (11); the cell body (11) and the sealing cover (12) enclose the electrolytic chamber (1a).

9. The electroplating device (1000) according to claim 8, characterized in that: The cathode component (22) is arranged on the sealing cover (12).

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