Anode copper plate production and processing system and method

Abstract

The present invention discloses a production and processing method of an anode copper plate, which comprises the following steps: after casting, liquid copper water is cooled and solidified to form an anode copper plate, and when the temperature of the anode copper plate is 600°C-900°C, the anode copper plate is hot extruded in a direction perpendicular to the thickness of the anode copper plate. The present invention also discloses an anode copper plate production and processing system for realizing the production and processing method of the anode copper plate. The present invention performs hot extrusion on the anode copper plate that is cooled and formed after casting, corrects the geometric dimensions of the anode copper plate by hot extrusion, eliminates the flash and burrs of the anode copper plate, extrude the back ribs caused by the quality of the casting mold, and extrude the bulges caused by the casting bag and the temperature of the copper water, thereby greatly improving the finished product qualification rate of the anode copper plate. The present invention has reasonable process, simple flow and convenient operation.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgy, and in particular relates to an anode copper plate production and processing system and a method thereof. Background Art

[0002] In the copper smelting process, the disc casting machine is a very critical casting equipment, which is used to cast the molten copper into anode copper plates of consistent specifications. Since the quality of the anode copper plates directly affects the quality of electrolytic copper, it is very important to prepare qualified anode copper plates.

[0003] At present, smelting enterprises usually use disc casting machines to produce anode copper plates. During the production process of anode copper plates, due to various reasons such as the temperature of molten copper, the control of the casting ladle, the operation curve of the disc casting machine and the casting mold, the cast anode copper plates often have flash, burrs, bulges and back ribs, which cannot meet the product quality requirements of downstream manufacturers, so that a large amount of manual processing is required in the later stage. Not only is the labor intensity high and the production efficiency low, which wastes a lot of manpower and material resources, but also there are certain safety hazards.

[0004] The solutions adopted by existing manufacturers are generally: 1. Precisely control the casting of the existing casting package to prevent excess copper water from splashing, thereby causing the flash of the anode copper plate; 2. Modify the disc casting machine to improve the control accuracy and operation stability, change the external circular gear drive disc to the central drive, change the frequency converter (VVVF) control to servo (SERVO) closed-loop control, and use a smooth S curve to operate the disc casting machine; 3. Add a hydraulic damper to mechanically brake the disc. After the above series of solutions were transformed, the quality of the anode copper plate was improved to a certain extent, and the qualified rate of the anode copper plate reached more than 85%. However, in a large number of actual on-site uses, the unqualified anode copper plates still had to be processed manually in the later stage, and the above-mentioned deficiencies still existed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an anode copper plate production and processing system and method thereof, so as to solve the problems of flash, burrs, bulges and back ribs on the cast anode copper plate and improve the quality of the anode copper plate.

[0006] In order to solve the above technical problems, the technical solution of the present invention is:

[0007] A production and processing system for an anode copper plate comprises a disc casting machine, the disc casting machine comprises a casting disc and a cooling water trough, the production and processing system for an anode copper plate further comprises a hydraulic press and a plate taking device; the plate taking device is arranged on one side of the casting disc and is located between the hydraulic press and the cooling water trough; the hydraulic press comprises a main oil cylinder, a top plate, a bottom plate, an intermediate plate and a column, the main oil cylinder is installed on the top plate, the top plate and the bottom plate are fixedly connected by the column, the intermediate plate is located below the top plate and is pushed by the main oil cylinder to perform lifting movements in the up and down directions; a moving mold is fixedly installed on the bottom surface of the intermediate plate, and a stationary mold is fixedly installed on the top surface of the bottom plate; the stationary mold has an inwardly recessed forming cavity, and the shapes and sizes of the forming cavity and the moving mold match the shapes and sizes of the casting mold on the casting disc; a push rod demoulding device is movably provided at the bottom of the forming cavity.

[0008] Preferably, the plate taking device is a mechanical clamping arm. The plate taking device is used to take the anode copper plate solidified after spray cooling in the casting disc into the stationary mold of the hydraulic press and transfer it to the cooling water tank after hot extrusion by the hydraulic press.

[0009] Preferably, the disc casting machine is a double disc casting machine or a single disc casting machine.

[0010] Another object of the present invention is to provide a method for producing and processing an anode copper plate, using the above-mentioned anode copper plate production and processing system, the method comprising the following steps: liquid copper is cast and then cooled and solidified to form an anode copper plate, and when the temperature of the anode copper plate is 600°C-900°C, the anode copper plate is hot extruded in a direction perpendicular to the thickness of the anode copper plate.

[0011] In the present invention, the liquid copper is cast by a disc casting machine, and the temperature of the anode copper plate that has not been fully formed after casting is about 1000-1100°C. At this time, since the anode copper plate has not been fully formed, it cannot be taken out and sent to the hot extrusion process. The anode copper plate casting mold is cooled by a cooling device, and when the temperature after cooling is controlled to be 600°C-900°C, the anode copper plate is hot-extruded in a direction perpendicular to the thickness of the anode copper plate by a hydraulic press. The present invention makes full use of the high residual temperature of the anode copper plate after casting, and hot extrusion is performed when the anode copper plate has not been completely cooled. Not only can the flash, burrs, bulges and back ribs of the anode copper plate be eliminated, but also the energy consumption is low, no additional heat energy is required, and it has high practical value. When the temperature of the anode copper plate after cooling is below 600°C, hot extrusion of the anode copper plate can only eliminate part of the flash, burrs, bulges and back ribs, and as the temperature of the anode copper plate further decreases, the effect becomes worse and worse until there is no effect; at this time, if the anode copper plate is heated by an additional heat source, it will lead to high energy consumption.

[0012] Preferably, the temperature of the anode copper plate after cooling and solidification is 650°C-800°C. Under this temperature condition, the flash, burrs, bulges and back ribs of the anode copper plate can be fully repaired without providing additional heat energy, which has a significant technical effect. More preferably, the temperature of the anode copper plate after cooling and solidification is 700°C-750°C. The anode copper plate prepared by hot extrusion under this temperature condition has the best quality and achieves unexpected technical effects.

[0013] Preferably, the extrusion pressure of the hot extrusion is 0.18MPa-0.40MPa.

[0014] Preferably, the extrusion time of the hot extrusion is 3s-7s.

[0015] Another object of the present invention is to protect the anode copper plate prepared according to the above method.

[0016] The beneficial effects of the present invention are:

[0017] The present invention uses a hydraulic press to hot extrude the anode copper plate that has been cooled and formed after casting, fully utilizes the residual heat of the anode copper plate itself, corrects the geometric dimensions of the anode copper plate by hot extrusion, eliminates the flash and burrs of the anode copper plate, extrude the back ribs caused by the quality of the casting mold, and extrude the bulges caused by the casting bag and the temperature of the copper water, thereby greatly improving the finished product qualification rate of the anode copper plate. The present invention has reasonable technology, simple flow, convenient operation, and energy saving.

[0018] There is no report on the use of hot extrusion process to process anode copper plates in the prior art. The present invention creatively processes the anode copper plates after casting by hot extrusion process, and achieves unexpected technical effects. Production practice has proved that the anode copper plates prepared by the production and processing method of the anode copper plates proposed by the present invention have a finished product qualification rate of more than 99%, which greatly improves the finished product qualification rate of the existing anode copper plate preparation method, saves a lot of manpower and material costs for enterprises, and is worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] In the figure, 1-casting disc, 1a-casting mold, 2-cooling water tank, 3-hydraulic press, 4-plate taking device, 5-moving mold, 6-stationary mold, 7-elevator demoulding device, 30-main cylinder, 31-top plate, 32-bottom plate, 33-middle plate, 34-column, 60-molding cavity. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are further described below in conjunction with the examples. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Example

[0022] like Figure 1 As shown, an anode copper plate production and processing system includes a disc casting machine (only part of the structure is shown), the disc casting machine includes a casting disc 1 and a cooling water tank 2, and the anode copper plate production and processing system also includes a hydraulic press 3 and a plate taking device 4; the plate taking device 4 is arranged on one side of the casting disc 1 and is located between the hydraulic press 3 and the cooling water tank 2; the hydraulic press 3 includes a main oil cylinder 30, a top plate 31, a bottom plate 32, an intermediate plate 33 and a column 34, the main oil cylinder 30 is installed on the top plate 31, the top plate 3 1 and the bottom plate 32 are fixedly connected by the column 34, the middle plate 33 is located below the top plate 31 and is pushed by the main oil cylinder 30 to perform lifting and lowering movements in the up and down directions; the bottom surface of the middle plate 33 is fixedly installed with a movable mold 5, and the top surface of the bottom plate 32 is fixedly installed with a stationary mold 6; the stationary mold 6 has an inwardly concave molding cavity 60, and the shapes and sizes of the molding cavity 60 and the movable mold 5 are matched with the shapes and sizes of the casting mold 1a on the casting disc 1; the bottom of the molding cavity 60 is movably provided with a push rod demoulding device 7.

[0023] Specifically, the disc casting machine is a double disc casting machine or a single disc casting machine. The double disc casting machine can be selected as an M-18 double disc casting machine or an M16 automatic double disc casting machine of Jiangxi Copper Group (Guixi) Metallurgical Chemical Engineering Company.

[0024] A method for producing and processing anode copper plates using the above-mentioned anode copper plate production and processing system includes the following steps: after the liquid copper is cast in the casting mold 1a of the casting disc 1, it is cooled and solidified by cooling water to form an anode copper plate. When the temperature of the anode copper plate is cooled to 700°C, the anode copper plate is taken out from the casting mold 1a by the plate taking device 4 and sent to the forming cavity 60 on the hydraulic press 3. The main oil cylinder 30 is started to drive the moving mold 5 to move downward to the forming cavity 60, wherein the extrusion pressure of the hot extrusion is controlled to be 0.3MPa. The anode copper plate is extruded for 5s under the above extrusion pressure, and the hot extrusion processing of the anode copper plate is completed. After the hot extrusion is completed, the main oil cylinder 30 is released, the moving mold 5 is reset, and the anode copper plate after hot extrusion is pushed upward by the anode copper plate ejector demolding device 7 that is movably provided at the bottom of the forming cavity 60 to complete the demolding of the anode copper plate. After demoulding, the anode copper plate is grabbed by the plate taking device 4 and moved to the cooling water tank 2 for cooling. The cooled anode copper plate is sent to the finished product warehouse by a forklift. After inspection, the anode copper plate after hot extrusion has no flash, burr, bulge or back rib phenomenon, and the product qualification rate reaches 99%.

[0025] It should be noted that there is no particular restriction on the method of casting liquid copper into anode copper plates, and a conventional casting method well known to those skilled in the art can be used. The ejector demoulding device 7 includes an ejector and an oil cylinder for driving the ejector, which is a prior art and will not be further described here. For the selection of the hydraulic press, according to the requirements of the hot extrusion process, a hydraulic press of a corresponding type is selected, either a horizontal hydraulic press or a vertical hydraulic press. The plate taking device 4 in this embodiment is a mechanical clamping arm. Of course, the plate taking device 4 is not limited to the above structure. Any device that can realize the extraction of the cooled anode copper plate in the casting mold 1a of the casting disc 1 into the forming mold cavity 60 on the hydraulic press 3, and then transfer it to the cooling water tank 2 can be used. Among them, the mechanical clamping arm can adopt the authorization announcement number CN202106020U, a "16M casting disc mechanical clamping arm", which can be well applied to the present invention. Example

[0026] Using Example 1 Figure 1The anode copper plate production and processing system and the method for producing and processing the anode copper plate include the following steps: after the liquid copper water is cast in the casting mold 1a of the casting disc 1, it is cooled and solidified by cooling water to form the anode copper plate. When the temperature of the anode copper plate is cooled to 900°C, the anode copper plate is taken out from the casting mold 1a by the plate taking device 4 and sent to the forming cavity 60 on the hydraulic press 3. The main oil cylinder 30 is started to drive the moving mold 5 to move downward to the forming cavity 60, wherein the extrusion pressure of the hot extrusion is controlled to be 0.18MPa. The anode copper plate is extruded for 5s under the above extrusion pressure, and the hot extrusion processing of the anode copper plate is completed. After the hot extrusion is completed, the main oil cylinder 30 is released, the moving mold 5 is reset, and the anode copper plate after hot extrusion is pushed upward by the anode copper plate ejector demoulding device 7 provided at the bottom of the forming cavity to complete the demoulding of the anode copper plate. After demoulding, the anode copper plate is grabbed by the plate taking device 4 and moved to the cooling water tank 2 for cooling. The cooled anode copper plate is sent to the finished product warehouse by a forklift. After inspection, the anode copper plate after hot extrusion has no flash, burr, bulge or back rib phenomenon, and the product qualification rate reaches 99%. Example

[0027] Using Example 1 Figure 1 The anode copper plate production and processing system and the method for producing and processing the anode copper plate include the following steps: after the liquid copper water is cast in the casting mold 1a of the casting disc 1, it is cooled and solidified by cooling water to form the anode copper plate. When the temperature of the anode copper plate is cooled to 600°C, the anode copper plate is taken out from the casting mold 1a by the plate taking device 4 and sent to the forming cavity 60 on the hydraulic press 3. The main oil cylinder 30 is started to drive the moving mold 5 to move downward to the forming cavity 60, wherein the extrusion pressure of the hot extrusion is controlled to be 0.40MPa. The anode copper plate is extruded for 5s under the above extrusion pressure, and the hot extrusion processing of the anode copper plate is completed. After the hot extrusion is completed, the main oil cylinder 30 is released, the moving mold 5 is reset, and the anode copper plate after the hot extrusion is pushed upward by the anode copper plate ejector demolding device 7 provided at the bottom of the forming cavity to complete the demolding of the anode copper plate. After demoulding, the anode copper plate is grabbed by the plate taking device 4 and moved to the cooling water tank 2 for cooling. The cooled anode copper plate is sent to the finished product warehouse by a forklift. After inspection, the anode copper plate after hot extrusion has no flash, burr, bulge or back rib phenomenon, and the product qualification rate reaches 99%.

[0028] Comparative Example 1

[0029] The conventional production and processing method of anode copper plates in the prior art comprises the following steps: after the liquid copper water is cast in the casting mold of the casting disc, it is spray-cooled by a spray cooling device, and the anode copper plates formed after spray cooling are demoulded by the anode copper plate ejector demoulding device under the casting mold, extracted by an extractor and sent to a cooling water tank for secondary cooling, and finally transported to a processing workshop by a forklift to manually remove the flash, burrs, bulges and back ribs on the anode copper plates to obtain qualified anode copper plates. The qualified rate of anode copper plates prepared by this method is less than 90%.

[0030] The above embodiments of the present invention are described in detail in conjunction with the embodiments, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A method for producing and processing an anode copper plate, using an anode copper plate production and processing system, the anode copper plate production and processing system comprising a disc casting machine, the disc casting machine comprising a casting disc (1) and a cooling water tank (2), characterized in that: The anode copper plate production and processing system further comprises a hydraulic press (3) and a plate taking device (4); the plate taking device (4) is arranged on one side of the casting disc (1) and is located between the hydraulic press (3) and the cooling water tank (2); the hydraulic press (3) comprises a main oil cylinder (30), a top plate (31), a bottom plate (32), an intermediate plate (33) and a column (34); the main oil cylinder (30) is mounted on the top plate (31); the top plate (31) and the bottom plate (32) are fixedly connected via the column (34); the intermediate plate (33) is located below the top plate (31) and is pushed by the main oil cylinder (30) to perform a lifting action in an up-and-down direction; the intermediate plate A movable die (5) is fixedly installed on the bottom surface of the bottom plate (33), and a stationary die (6) is fixedly installed on the top surface of the bottom plate (32); the stationary die (6) has an inwardly recessed forming die cavity (60), and the shapes and sizes of the forming die cavity (60) and the movable die (5) match the shapes and sizes of the casting die (1a) on the casting disc (1); a push rod demoulding device (7) is movably provided at the bottom of the forming die cavity (60); the method comprises the following steps: after casting liquid copper, cooling and solidifying to form an anode copper plate, and when the temperature of the anode copper plate is 600°C-900°C, hot extruding the anode copper plate in a direction perpendicular to the thickness of the anode copper plate; The extrusion pressure of the hot extrusion is 0.18MPa-0.40MPa; The extrusion time of the hot extrusion is 3s-7s.

2. The method for producing and processing an anode copper plate according to claim 1, characterized in that: The temperature of the anode copper plate after cooling and solidification is 650°C-800°C.

3. The method for producing and processing an anode copper plate according to claim 2, characterized in that: The temperature of the anode copper plate after cooling and solidification is 700°C-750°C.

4. The method for producing and processing an anode copper plate according to claim 1, characterized in that: The plate taking device (4) is a mechanical clamping arm.

5. The method for producing and processing an anode copper plate according to claim 1, characterized in that: The disc casting machine is a double disc casting machine or a single disc casting machine.

6. An anode copper plate obtained by the anode copper plate production and processing method according to claim 1.

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