Welding workbench for repairing lead alloy anode plate

Abstract

The utility model belongs to the technical field of nonferrous metallurgy, and particularly discloses a welding workbench for repairing a lead alloy anode plate. Two bottom frames of the workbench are arranged at intervals, at least two supporting springs are fixed on the bottom frames at intervals, a base is arranged above the two bottom frames, the bottom face of the base is fixed to the supporting springs, a vibration motor is fixed to the bottom face of the base, at least two supports are fixed to the top face of the base, two cross beams are arranged above the base, and the bottom faces of the cross beams are fixed to the top ends of the corresponding supports. The two connecting frames are arranged on the inner sides of the two cross beams, rotating shafts rotationally connected with the cross beams are fixed to the outer sides of the connecting frames, the pressing blocks are detachably fixed to the connecting frames and clamp one ends of the anode plates, and locking mechanisms for locking the connecting frames are arranged on the cross beams. The vibration base and the rotatable connecting frame are used for supporting the anode plate to be repaired, welding stress can be eliminated through vibration, welding of the two faces of the anode plate is facilitated through the rotatable connecting frame, and the device has the advantages of being simple in structure, high in welding efficiency, convenient and fast to clamp and low in labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of non-ferrous metallurgical technology, specifically to a welding workbench for repairing lead alloy anode plates that features a simple structure, high welding efficiency, convenient clamping, and low labor intensity. Background Technology

[0002] Electrolytic refining is a major process in hydrometallurgical processes, widely used for the refining and purification of non-ferrous metals. An electrolytic cell mainly consists of an electrolyte solution, a cathode plate, and an anode plate. Anode plates used in electrowinning refining are mostly lead alloy anode plates, which are easy to process and have good stability, but also have drawbacks such as low mechanical strength, susceptibility to deformation and short circuits, and resistance to Cl. - Disadvantages include poor corrosion resistance. Taking lead alloy anode plates for zinc electrowinning as an example, when the electrolyte has high impurities and Cl... - When the concentration exceeds 500 mg / L, or when contact between the anode and cathode plates causes a localized temperature increase (above 50°C) in the anode plate, deformation, corrosion, and porosity can occur. Statistics show that under these conditions, a large number of plates will develop porosity within 9-10 months (or as little as 2-3 months). If continued use occurs, the plate surface around the porosity will gradually thin, eventually leading to the expansion of the porosity and rendering the plate unusable. Data from one factory shows that new anode plates exhibit significant corrosion after only two months of use. Continued use results in a drop in current efficiency from 91.65% to 85.23%, an increase in DC power consumption of 299.30 kWh / t.Zn, and a significant increase in lead content in the zinc. If these plates are scrapped, the annual consumption of anode plates will exceed 20,000 pieces, resulting in a loss exceeding 20 million yuan. With declining zinc resource grades and increasingly complex mineral compositions, the concentrations of fluorine and chlorine in zinc systems are gradually increasing. The adverse effects of fluorine and chlorine on the performance of lead anode plates are becoming increasingly apparent, making the effective repair and reuse of lead-based anode plates a matter of widespread concern in the industry.

[0003] To address the above issues, existing technologies utilize artificial lead welding processes, employing patches made of the same material as the anode plate to weld and repair perforated anode plates, thereby extending their service life. The process includes steps such as oxide layer cleaning, hole cutting, patch preparation, welding, stress relief, and grinding. It is crucial to avoid defects such as incomplete welding, root shrinkage, undercut, and poor joints, as well as surface porosity, slag inclusions, and cracks; otherwise, the anode plate will quickly corrode again after being placed in the tank, affecting its performance. For example, a certain factory's 1.2m... 2 The anode plate to be repaired weighs over 40 kg, while the 1.6m 2 The weight of the anode plates to be repaired is over 70 kg, and the weight of larger anode plates is even greater. Due to the numerous repair steps and large workload, as well as the need for manual flipping during welding and manual hammering to relieve stress after welding, the repair efficiency is low, with a repair capacity of no more than 15 pieces / person / day, and the labor intensity is also high. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a welding workbench for repairing lead alloy anode plates that features a simple structure, high welding efficiency, convenient clamping, and low labor intensity.

[0005] This utility model is implemented as follows: it includes a base frame, supporting springs, a base, a vibration motor, a bracket, a crossbeam, a connecting frame, a rotating shaft, and a pressure block. Two base frames are symmetrically spaced apart. At least two supporting springs are vertically fixedly arranged at intervals along the length direction on the top surface of each base frame. The base is horizontally arranged above the two base frames, and the bottom surface of the base is fixedly connected to the top of each supporting spring. The vibration motor is fixedly arranged on the bottom surface of the base. At least two brackets are vertically fixedly arranged on the top surface of the base. Two crossbeams are horizontally or inclinedly arranged above the base, and their bottom surfaces are fixedly connected to the top of the corresponding brackets. Two connecting frames are respectively arranged inside the two crossbeams and parallel to the crossbeams. A rotating shaft that is rotatably connected to the corresponding crossbeam is fixedly arranged on the outer side of the connecting frame. The pressure block is detachably fixedly arranged on the connecting frame and clamps one end of the anode plate. A locking mechanism for locking the connecting frame is also provided on the crossbeam.

[0006] Furthermore, one of the two connecting frames has a slot on its inner side away from the corresponding crossbeam that can be inserted into the end face of the anode plate, and the other has an "L"-shaped support slot on its inner side away from the corresponding crossbeam. The pressure block is connected to the support slot by bolts or elastic buckles to clamp the other end of the anode plate.

[0007] Furthermore, the slot is a "V" shaped or "U" shaped slot, and a positioning baffle is provided at one end of the slot along its length.

[0008] Furthermore, the connecting frame is connected with at least two pressure blocks at intervals along its length, and the side of the pressure block away from the anode plate is connected to the support groove by bolts.

[0009] Furthermore, one of the two crossbeams, on its outer side away from the connecting frame, is provided with a crank or drive motor that is fixedly connected to the rotating shaft.

[0010] Furthermore, at least two supports are vertically fixed on each side of the top surface of the base, and the crossbeam and the supports on the corresponding side form a frame structure or a fence structure.

[0011] Furthermore, the bracket is provided with ribs at an angle on the outer side away from the connecting frame, and the two ends of the ribs are fixedly connected to the bracket and the base, respectively.

[0012] Furthermore, the locking mechanism is installed on one of the two crossbeams. The locking mechanism includes a locking pin. The connecting frame has two locking holes symmetrically arranged on both sides of the rotating shaft. The locking pin is slidably installed on the crossbeam and can slide into the locking hole.

[0013] Furthermore, the locking pin has a protruding ring at the middle of the inner side of the crossbeam near the connecting frame, and a locking spring is sleeved on the side of the locking pin near the connecting frame. The two ends of the locking spring abut against the protruding ring and the crossbeam respectively. A pull ring is detachably fixed on the outer side of the crossbeam away from the connecting frame.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model provides rotatable connecting frames on the inner sides of the two crossbeams and a locking mechanism on the crossbeams to lock the connecting frames. This facilitates the disassembly and installation of the anode plate to be repaired on the connecting frames, ensures stability during welding through the locking mechanism, and allows the anode plate to be easily rotated for welding on both sides through the cooperation of the rotating connecting frames and the locking mechanism. Therefore, it can effectively improve the efficiency of anode plate repair.

[0016] 2. This utility model uses a vibratory motor-driven elastic base to support the connecting frame that holds the anode plate to be repaired. After welding, the anode plate can be forced to vibrate by starting the vibratory motor to eliminate welding stress. This replaces the manual hammering used in the prior art to eliminate stress and significantly reduces the labor intensity during repair.

[0017] Therefore, this utility model has the characteristics of simple structure, high welding efficiency, convenient clamping, and low labor intensity. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Top view;

[0020] Figure 3 for Figure 1 The left view;

[0021] Figure 4 for Figure 2 A magnified view of a portion of the image;

[0022] In the diagram: 1-base frame, 2-support spring, 3-base, 4-vibration motor, 5-bracket, 6-crossbeam, 7-connecting frame, 8-rotating shaft, 9-pressure block, 10-slot, 11-support slot, 12-bolt, 13-drive motor, 14-rib plate, 15-pin, 16-locking spring, 17-pull ring, 18-anode plate. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0024] like Figures 1 to 4 As shown, this utility model includes a base frame 1, support springs 2, a base 3, a vibration motor 4, a bracket 5, a crossbeam 6, a connecting frame 7, a rotating shaft 8, and a pressure block 9. Two base frames 1 are symmetrically spaced apart. At least two support springs 2 are vertically fixedly arranged at intervals along the length direction on the top surface of each base frame 1. The base 3 is horizontally arranged above the two base frames 1. The bottom surface of the base 3 is fixedly connected to the top of each support spring 2. The vibration motor 4 is fixedly arranged on the bottom surface of the base 3. At least two brackets 5 are vertically fixedly arranged on the top surface of the base 3. Two crossbeams 6 are horizontally or inclinedly arranged above the base 3, and their bottom surfaces are fixedly connected to the top of the corresponding brackets 5. Two connecting frames 7 are respectively arranged inside the two crossbeams 6 and parallel to the crossbeams 6. A rotating shaft 8 is fixedly arranged on the outer side of the connecting frame 7 and rotatably connected to the corresponding crossbeam 6. The pressure block 9 is detachably fixedly arranged on the connecting frame 7 and clamps one end of the anode plate 18. A locking mechanism for locking the connecting frame 7 is also provided on the crossbeam 6.

[0025] In this utility model, one of the two connecting frames 7 is provided with a slot 10 on the inner side away from the corresponding crossbeam 6, which can be inserted into the end face of the anode plate 18, and the other is provided with an "L"-shaped support slot 11 on the inner side away from the corresponding crossbeam 6. The pressure block 9 is connected to the support slot 11 by bolts 12 or elastic buckles to clamp the other end of the anode plate 18.

[0026] The slot 10 is a "V" shaped or "U" shaped slot, and a positioning baffle is provided at one end of the slot 10 along its length.

[0027] The connecting frame 7 is connected with at least two pressure blocks 9 at intervals along its length. The side of the pressure block 9 away from the anode plate 18 is connected to the support groove 11 by bolts 12.

[0028] In this invention, one of the two crossbeams 6 is provided with a crank or drive motor 13 that is fixedly connected to the rotating shaft 8 on the outer side away from the connecting frame 7.

[0029] At least two supports 5 are vertically fixed on each side of the top surface of the base 3, and the crossbeam 6 and the supports 5 on the corresponding side form a frame structure or a fence structure.

[0030] The bracket 5 is inclinedly provided with a rib plate 14 on the outer side away from the connecting frame 7, and the two ends of the rib plate 14 are fixedly connected to the bracket 5 and the base 3 respectively.

[0031] The locking mechanism is installed on one of the two crossbeams 6. The locking mechanism includes a locking pin 15. The connecting frame 7 has two locking holes symmetrically arranged on both sides of the rotating shaft 8. The locking pin 15 is slidably installed on the crossbeam 6 and can slide into the locking hole.

[0032] The locking pin 15 has a protruding ring in the middle of the inner side of the crossbeam 6 near the connecting frame 7. The locking pin 15 has a locking spring 16 on the side near the connecting frame 7. The two ends of the locking spring 16 abut against the protruding ring and the crossbeam 6 respectively. The locking pin 15 has a pull ring 17 detachably fixed on the outer side of the crossbeam 6 away from the connecting frame 7.

[0033] The working principle and process of this utility model are as follows:

[0034] like Figures 1 to 4 As shown, during welding, the oxide layer of the joint part of the anode plate 18 to be repaired is scraped off until the metal color is exposed. Then, tools are used to cut around the hole on the anode plate 18 to form a regular shape. Subsequently, a plate of the same material as the anode plate 18 is cut into a patch corresponding to the shape of the repaired hole. Then, the patch is hammered into the repaired hole and adjusted to make the plate surface flat. Insert one end of the aforementioned patched anode plate 18 into the slot 10 of the connecting bracket 7, and place the other end into the support slot 11 of the corresponding connecting bracket 7. Then rotate the pressure head of the pressure block 9 above the anode plate 18, and tighten the bolt 12 to press the pressure block 9 into the support slot 11. At this time, the locking pin 15 slides into the locking hole of the connecting bracket 7 to fix it to the crossbeam 6, thus completing the installation of the anode plate 18. Then, the upper surface of the anode plate 18 can be welded for repair. After welding, pull the pull ring 17 to disengage the locking pin 15 on the crossbeam 6 from the locking hole on the connecting bracket 7. At this time, the connecting bracket 7 can be rotated by the crank or drive motor 13 to flip the anode plate 18. After flipping, release the pull ring 17 to re-engage the locking pin 15 on the crossbeam 6 into the locking hole on the connecting bracket 7. At this time, the other side of the anode plate 18 can be welded. After welding is completed, start the vibration motor 4 to make the base 3 vibrate on the support spring 2, which in turn drives the anode plate 18 on the connecting frame 7 to vibrate in a forced manner, thereby eliminating welding stress. After completion, stop the vibration motor 4, loosen the bolt 12 and rotate the pressure block 9 to remove the welded anode plate 18.

[0035] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A welding workbench for repairing lead alloy anode plates, characterized in that: The system includes a base frame (1), support springs (2), a base (3), a vibration motor (4), a bracket (5), a crossbeam (6), a connecting frame (7), a rotating shaft (8), and a pressure block (9). Two base frames (1) are symmetrically spaced apart. At least two support springs (2) are vertically fixed at intervals along the length of the top surface of each base frame (1). The base (3) is horizontally positioned above the two base frames (1). The bottom surface of the base (3) is fixedly connected to the top of each support spring (2). The vibration motor (4) is fixedly positioned on the bottom surface of the base (3). The top of the base (3)... At least two supports (5) are fixedly installed vertically on the surface. Two crossbeams (6) are installed horizontally or inclined above the base (3) and their bottom surfaces are fixedly connected to the top of the corresponding supports (5). Two connecting frames (7) are respectively installed on the inner side of the two crossbeams (6) and are parallel to the crossbeams (6). A rotating shaft (8) that is rotatably connected to the corresponding crossbeam (6) is fixedly installed on the outer side of the connecting frame (7). The pressure block (9) is detachably fixed on the connecting frame (7) and clamps one end of the anode plate (18). A locking mechanism for locking the connecting frame (7) is also provided on the crossbeam (6).

2. The welding workbench for repairing lead alloy anode plates according to claim 1, characterized in that: One of the two connecting frames (7) is provided with a slot (10) on the inner side away from the corresponding crossbeam (6) so that it can be inserted into the end face of the anode plate (18), and the other is provided with an "L"-shaped support slot (11) on the inner side away from the corresponding crossbeam (6). The pressure block (9) is connected to the support slot (11) by bolts (12) or elastic buckles to clamp the other end of the anode plate (18).

3. The welding workbench for repairing lead alloy anode plates according to claim 2, characterized in that: The slot (10) is a "V" or "U" shaped slot, and a positioning baffle is provided at one end of the slot (10) along its length.

4. The welding workbench for repairing lead alloy anode plates according to claim 2, characterized in that: The connecting frame (7) is connected with at least two pressure blocks (9) at intervals along its length. The side of the pressure block (9) away from the anode plate (18) is connected to the support groove (11) by bolts (12).

5. The welding workbench for repairing lead alloy anode plates according to claim 1, characterized in that: One of the two beams (6) is provided with a crank or drive motor (13) fixedly connected to the rotating shaft (8) on the outer side away from the connecting frame (7).

6. The welding workbench for repairing lead alloy anode plates according to any one of claims 1 to 5, characterized in that: At least two supports (5) are vertically fixed on each side of the top surface of the base (3), and the crossbeam (6) and the supports (5) on the corresponding side form a frame structure or a fence structure.

7. The welding workbench for repairing lead alloy anode plates according to claim 6, characterized in that: The bracket (5) is inclined with ribs (14) on the outer side away from the connecting frame (7), and the two ends of the ribs (14) are fixedly connected to the bracket (5) and the base (3) respectively.

8. The welding workbench for repairing lead alloy anode plates according to any one of claims 1 to 5, characterized in that: The locking mechanism is set on one of the two crossbeams (6). The locking mechanism includes a locking pin (15). The connecting frame (7) has two locking holes symmetrically arranged on both sides of the rotating shaft (8). The locking pin (15) is slidably set on the crossbeam (6) and can slide into the locking hole.

9. The welding workbench for repairing lead alloy anode plates according to claim 8, characterized in that: The locking pin (15) has a protruding ring in the middle of the inner side of the crossbeam (6) near the connecting frame (7). The locking pin (15) has a locking spring (16) on the side near the connecting frame (7). The two ends of the locking spring (16) abut against the protruding ring and the crossbeam (6) respectively. The locking pin (15) has a pull ring (17) detachably fixed on the outer side of the crossbeam (6) away from the connecting frame (7).

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