A centralized automatic treatment device and method for zinc electrowinning anodes

Abstract

The application provides a zinc electrodeposition anode centralized automatic treatment device, and belongs to the field of non-ferrous metal smelting, which comprises a travelling crane, an entering plate placing rack, an anode plate treatment device, and an exiting plate placing rack; an anode input transfer trolley is arranged between the entering plate placing rack and the anode plate treatment device; and an anode exiting plate transfer trolley is arranged between the anode plate treatment device and the exiting plate placing rack. The zinc electrodeposition anode centralized automatic treatment method transports the anode plate in an electrolytic cell to the entering plate placing rack by the travelling crane, then hoists the anode plate from the exiting plate placing rack and puts it into the electrolytic cell, and after multiple cycles of hoisting, the replacement of the anode plate in the electrolytic cell can be completed in a short time. The zinc electrodeposition anode centralized automatic treatment device and method provided by the application solve the technical problems of low utilization rate of the travelling crane and long idle time of the electrolytic cell in the process of discharging the anode plate from the electrolytic cell in the prior art wet zinc smelting.

Description

Technical Field

[0001] This invention relates to the field of non-ferrous metal smelting, and specifically to a centralized automatic processing device and method for zinc electrowinning anodes. Background Technology

[0002] In the hydrometallurgical zinc smelting process, due to the oxygen evolution reaction at the electrolytic anode, anode sludge gradually adheres to the anode plate and thickens, leading to increased electrolytic energy consumption. Furthermore, during electrolysis, the rolled anode plate deforms due to internal stress generated during manufacturing, increasing the difficulty of automatic anode plate loading into the electrolytic bath and raising the possibility of short circuits between the anode and cathode plates. Therefore, it is necessary to regularly clean the anode sludge from the zinc electrowinning anode plate and level the anode plate.

[0003] Currently, the main method for anode treatment involves using an overhead crane to lift anode plates one-third of the way through the cell, placing the entire plate onto an anode trolley, and then transferring it to a flattening and cleaning unit. There, the individual anode plates are washed (or chain-driven) and flattened. This method is time-consuming (up to 10 hours) per plate, has low efficiency, results in low crane utilization, and leads to long periods of idle time for the electrolytic cells. Furthermore, the zinc electrowinning workshop has a large amount of sulfuric acid mist, creating a harsh environment. Prolonged, high-intensity labor under these conditions causes significant harm to the physical and mental health of the operators.

[0004] Therefore, designing a process device and method that can centrally and automatically process anode plates in a short time (0.5 hours) is an essential prerequisite for improving production efficiency, reducing working time, and lowering production costs in the zinc electrowinning industry of non-ferrous metals. Summary of the Invention

[0005] To address the technical problems of low crane utilization and long idle time of electrolytic cells during the anode plate loading and unloading process in existing wet zinc smelting technologies, this invention provides a centralized automatic processing device and method for zinc electrowinning anodes.

[0006] A centralized automatic processing device for zinc electrowinning anodes includes a traveling crane, an infeed plate placement rack, an anode plate processing device, and an outfeed plate placement rack; an anode input transfer trolley is provided between the infeed plate placement rack and the anode plate processing device; an anode outfeed transfer trolley is provided between the anode plate processing device and the outfeed plate placement rack.

[0007] In a preferred embodiment of a centralized automatic processing device for zinc electrowinning anodes provided by the present invention, the anode plate processing device includes a chain machine, an infeed transfer machine, a transverse chain, an outfeed transfer machine, and an outfeed chain machine arranged in sequence. The chain machine is located near the anode input transfer trolley, and the outfeed chain machine is located near the anode outfeed transfer trolley. The chain machine is equipped with a chain beater, a flattening machine, and a high-pressure water cleaning device.

[0008] In a preferred embodiment of the zinc electrowinning anode centralized automatic processing device provided by the present invention, a rotating mechanism is further provided on the transverse chain near the plate transfer machine; the rotating mechanism includes a frame, an anode plate rotating frame is provided on the frame, a rotating shaft is fixed at the bottom center of the anode plate rotating frame, and the rotating shaft is rotatably connected to the frame; a rotating drive device for driving the rotating shaft to rotate is also provided on the frame.

[0009] In a preferred embodiment of the centralized automatic processing device for zinc electrowinning anodes provided by the present invention, the rotary drive device includes a rotary drive cylinder disposed on the frame, a rack is fixedly connected to the power end of the rotary drive cylinder, and a gear plate is fixedly sleeved on the rotary shaft, with the rack meshing with the gear plate.

[0010] A centralized automatic processing method for zinc electrowinning anodes includes the following steps: S1. Before starting, the electrolytic cell contains anode plates to be processed, and the plate placement rack contains anode plates that have already been processed. S2. The crane lifts multiple anode plates from the electrolytic cell and places them onto the plate placement rack. S3. The crane lifts the corresponding number of anode plates from the plate placement rack and places them into the electrolytic cell. S4. Repeat steps S2 and S3 until all anode plates in the electrolytic cell have been replaced. S5. After cleaning, leveling and washing, the anode plates on the plate-in placement rack are placed on the plate-out placement rack, waiting for the next lifting and replacement.

[0011] In a preferred embodiment of the centralized automatic processing method for zinc electrowinning anodes provided by the present invention, in step S5, after the anode plates to be processed are placed on the plate placement rack, the anode input transfer trolley transfers multiple anode plates to be processed to the chain machine; the chain machine sequentially chain-beats, flattens, and cleans the anode plates one by one; the processed anode plates are moved horizontally by the plate infeed transfer machine to the transverse chain, and the transverse chain transfers the anode plates one by one to the side close to the plate outfeed transfer machine; the plate outfeed transfer machine transfers a single anode plate to the rotating mechanism, and the rotating mechanism rotates the anode plate 180 degrees; the rotated anode plate is moved by the plate outfeed transfer machine to the plate outfeed chain machine; then the anode plate outfeed transfer trolley transfers multiple processed anode plates from the plate outfeed chain machine to the plate infeed rack, waiting for the next lifting and replacement.

[0012] Compared to existing technologies, the zinc electrolytic anode centralized automatic processing device and method provided by this invention uses a crane to transport anode plates from the electrolytic cell to the plate-in placement rack, and then lifts the anode plates from the plate-out placement rack and places them into the electrolytic cell. After multiple cycles of lifting, the replacement of anode plates in an electrolytic cell can be completed in a short time. This lifting method can effectively reduce the idle time of the electrolytic cell, improve the utilization efficiency of the crane, and reduce the working time of workers when loading and unloading the cells. After cleaning, leveling, and washing the anode plates on the plate-in placement rack, they are placed on the plate-out placement rack in preparation for the next replacement of anode plates in the electrolytic cell. The rotating mechanism allows the anode plates to rotate and change sides, reducing the impact of different structures on the two sides of the anode plate on the next replacement of anode plates in the electrolytic cell. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a centralized automatic processing device for zinc electrowinning anodes provided by the present invention; Figure 2 This is a schematic diagram of the centralized automatic processing device for zinc electrowinning anodes provided by the present invention from another perspective; Figure 3 This is a schematic diagram of the transverse chain structure in a centralized automatic zinc electrowinning anode processing device provided by the present invention; Figure 4 This is a schematic diagram of the rotating mechanism in a centralized automatic processing device for zinc electrowinning anodes provided by the present invention. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0015] Please refer to the following: Figures 1 to 4 These are schematic diagrams of the centralized automatic processing device for zinc electrowinning anodes provided by the present invention from two different perspectives, and schematic diagrams of the transverse chain and rotating mechanism therein.

[0016] The aforementioned centralized automatic processing device for zinc electrowinning anodes includes a crane 1, an anode plate 2, an infeed rack 3, an outfeed rack 4, and an anode plate processing device. The infeed rack 3 and the outfeed rack 4 are arranged parallel to each other on the ground, and the crane 1 is positioned above the infeed rack 3 and the outfeed rack 4 to hoist the anode plate 2.

[0017] An anode input transfer trolley 5 is provided between the infeed plate placement rack 3 and the anode plate processing device, and an anode output transfer trolley 6 is provided between the anode plate processing device and the outfeed plate placement rack 4.

[0018] The anode plate processing device includes a chain machine 10, an infeed transfer machine 11, a transverse chain 12, an outfeed transfer machine 14, and an outfeed chain machine 15 arranged in sequence. The infeed end of the chain machine 10 is located near the anode input transfer trolley 5, and the outfeed end of the outfeed chain machine 15 is located near the anode outfeed transfer trolley 6.

[0019] The chain machine 10 is equipped with a chain beater 7, a flattener 8, and a high-pressure water cleaning device. The chain beater 7 is located near the anode input transfer trolley 5, and the flattener 8 is located near the plate transfer machine 11. The high-pressure water cleaning device is a high-pressure water spray pipe, which is installed on the chain beater 7 and the flattener 8 to clean the anode plate 2.

[0020] A rotating mechanism 13 is also provided on the side of the transverse chain 12 near the plate transfer machine 14. The rotating mechanism 13 includes a frame 131. An anode plate rotating frame 132 is provided on the frame 131. A rotating shaft 133 is fixedly provided at the bottom center of the anode plate rotating frame 132. The rotating shaft 133 is rotatably connected to the frame.

[0021] The frame 131 is also provided with a rotary drive device for driving the rotating shaft 133 to rotate. The rotary drive device includes a rotary drive cylinder 134 disposed on the frame 131. A rack 135 is fixedly connected to the power end of the rotary drive cylinder 134. A gear plate (not shown in the figure) is fixedly sleeved on the rotating shaft 133. The rack 135 meshes with the gear plate.

[0022] The method for centralized automatic processing of zinc electrowinning anodes using the aforementioned centralized automatic processing device is as follows: S1. Before the operation begins, the electrolytic cell (not shown in the figure) contains anode plates to be processed, and the plate placement rack 4 contains anode plates that have already been processed.

[0023] S2. The crane 1 lifts multiple anode plates from the electrolytic cell and places them onto the plate placement rack 3.

[0024] S3. The crane 1 lifts the corresponding number of anode plates from the plate placement rack 4 and places them into the electrolytic cell.

[0025] S4. Repeat steps S2 and S3 until all anode plates in the electrolytic cell have been replaced.

[0026] S5. After cleaning, leveling and washing, the anode plates on the plate infeeding rack 3 are placed on the plate outfeeding rack 4, waiting for the next lifting and replacement.

[0027] In step S2, the overhead crane 1 lifts multiple anode plates and places them onto the plate placement rack 3. Considering the weight of the multiple anode plates and the anode mud as a whole, lifting too many anode plates risks damaging the overhead crane 1. In this embodiment, the number of anode plates lifted at one time in S2 is one-third of the total number of anode plates in the electrolytic cell. That is, repeating S2 and S3 three times is sufficient to replace all the anode plates in the electrolytic cell.

[0028] In step S5, after the anode plates to be processed are placed on the plate placement rack 3, the anode input transfer trolley 5 transports multiple anode plates to be processed onto the chain machine 10 at one time. The chain machine 10 sequentially performs chain beating, flattening and cleaning on the anode plates one by one. After processing, the anode plates are transferred horizontally onto the transverse chain 12 by the plate transfer machine 11.

[0029] The transverse chain 12 transfers the anode plate to a side closer to the plate transfer machine 14.

[0030] The plate transfer machine 14 first transfers the anode plate onto the rotating mechanism 13, that is, the conductive beam of the anode plate is hung on the anode plate rotating frame 132. The rotating mechanism 13 rotates the anode plate 180 degrees, that is, the rotating drive cylinder 134 extends, driving the rack 135 to move. During the movement of the rack 135, the gear plate rotates, thereby driving the anode plate rotating frame 132 and the anode plate to rotate.

[0031] The rotated anode plates are transferred to the plate-out transfer machine 15 via the plate-out transfer machine 14; then the anode plate-out transfer trolley 6 transfers multiple processed anode plates from the plate-out transfer machine 15 to the plate-in placement rack 3, waiting for the next lifting and replacement.

[0032] The rotating mechanism 13 rotates the anode plate 180 degrees, mainly because the two sides of the anode plate are not completely identical, thus reducing the impact of the different structures on the anode plate on the replacement of the anode plate in the next electrolytic cell.

[0033] For ease of understanding, the following will be used as an example. Figure 2 The effect of rotation will be explained from the perspective of [the viewpoint].

[0034] Assume that there are two anode plates on the plate placement rack 3. The two anode plates are named one and two respectively. The left side of one and two is defined as surface A and surface B, and the right side is defined as surface B and surface B.

[0035] That is, the plate placement rack 3 is arranged from left to right as "side A, side B, side A, and side B", with side B and side A being close to each other.

[0036] If the anode plate is not rotated 180 degrees, when the anode plate moves to the plate placement frame 4, it will appear from left to right as "two A surfaces, two B surfaces, one A surface, one B surface", at which time one A surface and two B surfaces are close to each other.

[0037] The anode plate is rotated 180 degrees. When the anode plate moves to the plate placement rack 4, it is arranged from left to right as "two B sides, two A sides, one B side, one A side". The one B side and the two A sides are still close to each other. This can reduce the impact of the different structures of the two sides of the anode plate on the anode plate replacement of the next electrolytic cell.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A centralized automatic processing device for zinc electrowinning anodes, characterized in that: It includes a crane, an infeed plate placement rack, an anode plate processing device, and an outfeed plate placement rack; an anode input transfer trolley is provided between the infeed plate placement rack and the anode plate processing device; an anode outfeed transfer trolley is provided between the anode plate processing device and the outfeed plate placement rack.

2. The centralized automatic processing device for zinc electrowinning anodes according to claim 1, characterized in that: The anode plate processing device includes a chain machine, an infeed transfer machine, a transverse chain, an outfeed transfer machine, and an outfeed chain machine arranged in sequence. The chain machine is located near the anode input transfer trolley, and the outfeed chain machine is located near the anode outfeed transfer trolley. The chain machine is equipped with a chain beater, a flattening machine, and a high-pressure water cleaning device.

3. The centralized automatic processing device for zinc electrowinning anodes according to claim 2, characterized in that: A rotating mechanism is also provided on the transverse chain near the plate transfer machine; the rotating mechanism includes a frame, on which an anode plate rotating frame is provided, and a rotating shaft is fixed at the bottom center of the anode plate rotating frame, the rotating shaft being rotatably connected to the frame; a rotating drive device for driving the rotating shaft to rotate is also provided on the frame.

4. The centralized automatic processing device for zinc electrowinning anodes according to claim 3, characterized in that: The rotary drive device includes a rotary drive cylinder mounted on the frame. A rack is fixedly connected to the power end of the rotary drive cylinder, and a gear plate is fixedly sleeved on the rotary shaft. The rack meshes with the gear plate.

5. A method for centralized automatic processing of zinc electrowinning anodes using the centralized automatic processing device for zinc electrowinning anodes as described in claim 3 or 4, characterized in that: S1. Before starting, the electrolytic cell contains anode plates to be processed, and the plate placement rack contains anode plates that have already been processed. S2. The crane lifts multiple anode plates from the electrolytic cell and places them onto the plate placement rack. S3. The crane lifts the corresponding number of anode plates from the plate placement rack and places them into the electrolytic cell. S4. Repeat steps S2 and S3 until all anode plates in the electrolytic cell have been replaced. S5. After cleaning, leveling and washing, the anode plates on the plate-in placement rack are placed on the plate-out placement rack, waiting for the next lifting and replacement.

6. The centralized automatic processing method for zinc electrowinning anodes according to claim 5, characterized in that: In step S5, after the anode plates to be processed are placed on the plate placement rack, the anode input transfer trolley transfers multiple anode plates to the chain machine. The chain machine sequentially chain-beats, flattens, and cleans each anode plate. After processing, the anode plates are moved horizontally by the plate infeed transfer machine to the transverse chain, which transfers each anode plate to the side near the plate outfeed transfer machine. The plate outfeed transfer machine transfers a single anode plate to the rotating mechanism, which rotates the anode plate 180 degrees. The rotated anode plate is then transferred by the plate outfeed transfer machine to the plate outfeed chain machine. Finally, the anode plate outfeed transfer trolley transfers multiple processed anode plates from the plate outfeed chain machine back to the plate infeed rack, awaiting the next lifting and replacement.

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