Cathode copper production device and process thereof

Abstract

The invention belongs to the technical field of electrolytic refining of copper, and particularly relates to a cathode copper production device and a process thereof.The cathode copper production device comprises an electrolytic bath, the cathode is detachably and fixedly connected with the electrolytic cell, the anode is detachably and fixedly connected with the electrolytic cell, and the anode is parallel to the cathode; the power supply is electrically connected with the anode and the cathode; the circulating pump is used for providing electrolyte circulation, the circulating pump is communicated with the liquid inlet, and the circulating pump is communicated with the liquid outlet; the controller is electrically connected with the circulating pump; the cleaning mechanism comprises a spring and a push plate, one end of the spring is fixedly connected with the push plate, the other end of the spring is fixedly connected with the push plate, the push plate is slidably connected with the bottom of the electrolytic tank, and a storage tank is arranged at the bottom of the electrolytic tank and matched with the push plate. According to the scheme, the problem that the anode mud easily floats when the flow velocity is high is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of electrolytic refined copper, and in particular relates to a cathode copper production device and a process thereof. Background Art

[0002] Electrolytic copper anodes are made of crude copper or miscellaneous copper (copper content is 90% to 94% by mass) through refining. Copper oxidation refining refers to the method of removing impurities from crude copper or miscellaneous copper by oxidation and then reducing and smelting refined copper. In the production process, it is easy to deform, grow copper, and the oxide layer will fall off (deposit at the bottom of the electrolytic cell to produce anode mud). This means that the electrician must handle the anode after a period of production, and even the entire cell must be handled. The anode mud at the bottom of the electrolytic cell must be cleaned when the cell is stopped.

[0003] At present, there is a circulating impurity removal type copper refining electrolytic cell on the market with the announcement number CN205688030U, which includes an electrolyte accommodating chamber, and the two ends of the electrolyte accommodating chamber are respectively provided with a stainless steel permanent cathode and a blister copper plate anode, and the inner wall of the electrolyte accommodating chamber includes an electrolytic cell bottom wall and an electrolytic cell side wall, and the height of the electrolytic cell bottom wall gradually decreases from the end where the stainless steel permanent cathode is provided to the end where the blister copper plate anode is provided; an electrolyte circulation outlet is provided on the bottom wall of the electrolytic cell, and the electrolyte circulation outlet is provided at the end where the blister copper plate anode is located; and a circulating impurity removal pipeline is also provided, and the circulating impurity removal pipeline includes a circulating impurity removal inlet end and a circulating impurity removal outlet end, and the circulating impurity removal inlet end is provided with an electrolyte impurity removal filter, and a circulating impurity removal filter pump is provided on the circulating impurity removal pipeline. The utility model will not cause the accumulation of anode mud, and the use continuity of the electrolytic copper refining electrolytic cell is good; and the labor intensity is low and the work efficiency is high.

[0004] However, there are some problems: 1. The device drives the anode mud through the circulating liquid, which can easily block the connection, and many anode muds tend to adhere to the bottom, making it difficult to drive only by the flow of liquid. 2. When the existing electrolyte circulates, the flow rate cannot be too fast, otherwise the anode mud will float and cause a short circuit or adhere to the electrode, while too slow will reduce the electrolysis efficiency. 3. When the existing electrolyte circulates, the flow rate is too fast, which will cause too much air to mix in the liquid, resulting in pitting on the electrode. Summary of the invention

[0005] The present invention provides a cathode copper production device to solve the problem that anode mud is easy to float when the flow rate is fast.

[0006] The present invention provides a cathode copper production device, comprising an electrolytic cell: the electrolytic cell is provided with a liquid inlet and a liquid outlet; a cathode: the cathode is detachably fixedly connected to the electrolytic cell, an anode: the anode is detachably fixedly connected to the electrolytic cell, and the anode is parallel to the cathode; a power supply: the power supply is electrically connected to the anode and the cathode; a circulation pump: the circulation pump is used to provide electrolyte circulation, the circulation pump is connected to the liquid inlet, and the circulation pump is connected to the liquid outlet; a controller: the controller is electrically connected to the circulation pump; and also includes: a cleaning mechanism, the cleaning mechanism comprises a spring and a push plate, one end of the spring is fixedly connected to the push plate, and the other end is fixedly connected to the push plate, the push plate is slidably connected to the bottom of the electrolytic cell, the bottom of the electrolytic cell is provided with a storage tank, and the storage tank cooperates with the push plate.

[0007] The principle of this scheme is: select stainless steel plate or titanium plate as permanent cathode, select lead-antimony-tin ternary plate as grid anode, fix the cathode and anode on the electrolytic cell, clean the stains on the cathode, add electrolyte through the circulation pump, and then control the air pump to remove the air in the electrolyte. The operator turns on the power, starts electrolysis, starts the circulation pump, sets the flow rate of the circulation pump to high speed, and performs high-efficiency electrolysis.

[0008] When the operator sees too much anode mud floating at the anode or in the electrolyte, the operator sets the flow rate of the circulation pump to a low speed through the controller, so that the anode mud slowly settles. When the operator sees that the anode mud floating in the electrolyte decreases, the operator controls the controller to set the flow rate of the circulation pump to a high speed, and the push plate will push under the push of the liquid flow rate, so that the anode mud settled at the bottom is pushed into the storage tank. At the same time, the push plate is larger than the storage tank, so that the push plate blocks the storage tank and prevents the anode mud settled at a high flow rate from floating again.

[0009] The beneficial effects of this solution are: 1. This solution removes the anode mud at the bottom through the cleaning mechanism. 2. In this solution, at high flow rate, the precipitated anode mud is very easy to float, and the push plate can block the storage tank to prevent the anode mud from floating.

[0010] Furthermore, it also includes a guide plate, on which a guide rail is provided, and the guide rail is inclined. The guide plate is located on both sides of the push plate, and the push plate is slidably connected to the guide rail, and the guide plate is slidably connected to the bottom of the electrolytic cell. When returning to its original position, the push plate is easy to push the anode mud back to its original position. In order to prevent this situation, when the flow rate is high, the push plate will move on the guide rail while advancing, so that the push plate will drop and contact the bottom of the electrolytic cell, and at the same time drive the guide plate to move together, so that the push plate can push the anode mud to the storage tank. At a low flow rate, the push plate returns to its original position under the action of the spring, and at the same time, the push plate moves on the guide rail, so that the push plate rises and does not contact the bottom of the electrolytic cell, effectively preventing the anode mud adhering to the bottom from being pushed back when the push plate returns to its original position.

[0011] Furthermore, a knocking hammer is provided on the push plate, and the knocking hammer cooperates with the anode. When the push plate returns to the initial position, it will swing left and right under the action of the spring, and the knocking hammer will knock the anode to knock off the anode mud adhered thereon to prevent the anode from passivation.

[0012] Furthermore, a voltage detector is included, and the voltage detector is used to detect the voltage in the electrolytic cell, and the voltage detector is electrically connected to the controller. When too much anode mud adheres to the anode or too much anode mud floats, resulting in a short circuit, the voltage in the electrolyte will become higher. In this solution, the voltage is detected by the voltage detector to control the flow rate of the circulation pump. When the voltage is stable, it is adjusted to a high speed, and when the voltage becomes high, it is adjusted to a low speed.

[0013] Furthermore, it also includes an air pump, an air inlet is provided at the bottom of the electrolytic cell, the air pump is connected to the air inlet, and the air inlet is provided with a one-way valve. Whenever the flow rate becomes faster, a lot of air will be mixed in the electrolyte. At this time, the controller controls the air pump to start, and helium gas that is stable and insoluble in water is introduced into the electrolytic cell to take out the air, thereby preventing pitting on the cathode plate, and at the same time reducing the oxygen in the electrolytic cell, preventing copper from oxidizing to produce copper oxide, and reducing the purity of copper.

[0014] Furthermore, a contact switch is provided at the bottom of the electrolytic cell, the contact switch is electrically connected to the controller, and the contact switch cooperates with the push plate. When the flow rate is high, the push plate will move, and at this time it will touch the contact switch at the bottom of the electrolytic cell, and the air pump will start to exhaust the air. When the flow rate is low, the push plate will return to its position, and the push plate will not touch the contact switch, and the air pump will stop.

[0015] Furthermore, the invention also comprises a base for fixing the electrolytic cell, wherein the base is fixedly connected to the electrolytic cell, and the base can fix the electrolytic cell to prevent the electrolytic cell from shaking, causing liquid to splash out and injure the operator.

[0016] The present invention also provides a cathode copper production process, comprising the following steps: Step S10: Select a stainless steel plate or a titanium plate as a permanent cathode, select a lead-antimony-tin ternary plate as a grid anode, fix the cathode and the anode on the electrolytic cell, and then clean the stains on the cathode; Step S20: adding electrolyte via a circulation pump, and then controlling an air pump to remove air from the electrolyte; Step S30: Turn on the power supply, perform electrolysis, set the flow rate of the circulation pump to high speed, and then check the voltage through the voltage detector. When the voltage becomes high, the controller sets the flow rate of the circulation pump to low speed, and removes the anode mud on the anode plate by knocking the hammer; Step S40: When the voltage detector detects that the voltage has returned to a stable value, the controller sets the flow rate of the circulation pump to a high speed, and the cleaning mechanism removes the anode mud at the bottom; Step S50: until the cathode copper reaches the set purity, remove the copper adhering to the cathode, replace the anode, and the electrolysis is completed.

[0017] This process circulates the electrolyte by switching between high and low flow rates, which can effectively improve the electrolysis efficiency while preventing the bottom anode mud from floating and air from mixing into the electrolyte. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a low flow rate structure diagram of a cathode copper production device. Figure 2 This is a high flow rate structure diagram of a cathode copper production device. Figure 3 The present invention is a structural diagram of a cleaning mechanism of a cathode copper production device.

[0019] The figure marks in the specification include: 1. electrolytic cell; 2. cathode; 3. anode; 4. liquid outlet; 5. liquid inlet; 6. cleaning mechanism; 7. storage tank; 8. circulation pump; 9. base; 10. air pump; 61. push plate; 62. guide plate; 63. guide rail; 64. spring; 65. knock hammer. DETAILED DESCRIPTION

[0020] Basically as attached Figure 1 As shown: The present invention provides a cathode copper production device, comprising an electrolytic cell 1, a cathode 2, a voltage detector, an anode 3, a cleaning mechanism 6, a circulating pump 8, a base 9 and an air pump 10; the base 9 is fixedly connected to the electrolytic cell 1, the electrolytic cell 1 is provided with a liquid inlet 5, an air inlet and a liquid outlet 4, the electrolyte in the electrolytic cell is a mixed solution of sulfuric acid and copper sulfate, and the liquid inlet 5, the air inlet and the liquid outlet 4 are provided with a one-way valve; the cathode 2 is detachably fixedly connected to the electrolytic cell 1, the anode 3 is detachably fixedly connected to the electrolytic cell 1, and the anode 3 is parallel to the cathode 2, a stainless steel plate or a titanium plate is selected as the permanent cathode 2, and a lead-antimony-tin ternary plate is selected as the grid anode 3; The power supply is electrically connected to the anode 3 and the cathode 2; the circulation pump 8 is used to provide electrolyte circulation, the circulation pump 8 is connected to the liquid inlet 5, and the circulation pump 8 is connected to the liquid outlet 4; the controller is electrically connected to the circulation pump 8, the air pump 10 and the contact switch; the voltage detector is used to detect the voltage in the electrolytic cell 1, and the voltage detector is electrically connected to the controller. The air pump 10 is connected to the air inlet. A contact switch is provided at the bottom of the electrolytic cell 1, and the contact switch is electrically connected to the controller. The contact switch is located at the stop of the high flow rate push plate 61, so that the push plate 61 can touch the contact switch at a high flow rate, and will not touch the contact switch at a low flow rate.

[0021] As attached Figure 3 As shown: It also includes a cleaning mechanism 6, which includes a spring 64, a guide plate 62 and a push plate 61. One end of the spring 64 is fixedly connected to the push plate 61, and the other end is fixedly connected to the push plate 61. The push plate 61 is slidably connected to the bottom of the electrolytic cell 1. The bottom of the electrolytic cell 1 is provided with a storage tank 7, which is smaller than the push plate 61. When the push plate 61 is at a high flow rate, it will reach the position of the storage tank 7 and block the storage tank 7. The guide plate 62 is provided with a guide rail 63, which is inclined. The guide plate 62 is located on both sides of the push plate 61. The push plate 61 is slidably connected to the guide rail 63, and the guide plate 62 is slidably connected to the bottom of the electrolytic cell 1. The push plate 61 is provided with a knocking hammer 65, which will contact the anode 3 plate when the push plate 61 returns to its original position, and repeatedly hammer the anode 3 under the action of the spring 64.

[0022] As attached Figure 1 , Figure 2 , Figure 3 As shown: The present invention also provides a cathode copper production process, comprising the following steps: Step S10: Select a stainless steel plate or a titanium plate as the permanent cathode 2, select a lead-antimony-tin ternary plate as the grid anode 3, fix the cathode 2 and the anode 3 on the electrolytic cell 1, and then clean the stains on the cathode 2; Step S20: adding electrolyte via the circulation pump 8, and then controlling the air pump 10 to remove air from the electrolyte; Step S30: The operator turns on the power supply, starts electrolysis, starts the circulation pump 8, sets the flow rate of the circulation pump 8 to a high speed, and performs high-efficiency electrolysis.

[0023] When the voltage in the electrolytic cell 1 becomes high, the controller sets the flow rate of the circulation pump 8 to a low speed, so that the mud of the anode 3 slowly settles. The push plate 61 returns to its original position under the action of the spring 64, and at the same time, the push plate 61 moves on the guide rail 63, so that the push plate 61 rises and does not contact the bottom of the electrolytic cell 1, effectively preventing the push plate 61 from pushing back the anode 3 mud adhering to the bottom when returning to its original position. At the same time, when the push plate 61 returns to its initial position, it will swing left and right under the action of the spring 64, and then the knocking hammer 65 will knock the anode 3, knocking off the anode 3 mud adhering thereto, to prevent the anode 3 from passivation.

[0024] Step S40: When the voltage is stable, the controller sets the flow rate of the circulation pump 8 to a high speed, and the push plate 61 is pushed by the liquid flow rate, so that the anode 3 mud precipitated at the bottom is pushed into the storage tank 7. At the same time, the push plate 61 is larger than the storage tank 7, so that the push plate 61 blocks the storage tank 7 to prevent the anode 3 mud precipitated at a high flow rate from floating again. At the same time, the push plate 61 will touch the contact switch. At this time, the controller will control the air pump 10 to start, and pass stable helium that is insoluble in water into the electrolytic cell 1 to take out the air, prevent pitting on the cathode 2 plate, and at the same time reduce the oxygen in the electrolytic cell 1 to prevent copper oxidation from producing copper oxide and reduce the purity of copper.

[0025] Step S40: until the copper at cathode 2 reaches the set purity, remove the copper adhering to cathode 2, replace anode 3, and the electrolysis is completed.

[0026] The beneficial effects of this solution are as follows: 1. This solution removes the anode 3 mud at the bottom through the cleaning mechanism 6. 2. In this solution, at high flow rate, the precipitated anode 3 mud is very easy to float, and the push plate 61 can block the storage tank 7 to prevent the anode 3 mud from floating. 3. This solution realizes automatic adjustment of the air pump 10 and the flow rate through the push plate 61 and the change of voltage, completes the automatic adjustment, and improves the efficiency.

[0027] The above are only embodiments of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A cathode copper production device, comprising: Electrolytic cell (1): the electrolytic cell (1) is provided with a liquid inlet (5) and a liquid outlet (4); Cathode (2): The cathode (2) is detachably fixedly connected to the electrolytic cell (1). Anode (3): the anode (3) is detachably fixedly connected to the electrolytic cell (1), and the anode (3) is parallel to the cathode (2); Power supply: the power supply is electrically connected to the anode (3) and the cathode (2); Circulation pump (8): the circulation pump (8) is used to provide electrolyte circulation, the circulation pump (8) is connected to the liquid inlet (5), and the circulation pump (8) is connected to the liquid outlet (4); Controller: The controller is electrically connected to the circulation pump (8); It is characterized by further comprising: A cleaning mechanism (6), the cleaning mechanism (6) comprising a spring (64) and a push plate (61), one end of the spring (64) being fixedly connected to the push plate (61), and the other end of the spring (64) being fixedly connected to the push plate (61), the push plate (61) being slidably connected to the bottom of the electrolytic cell (1), the bottom of the electrolytic cell (1) being provided with a storage slot (7), the storage slot (7) being matched with the push plate (61).

2. A cathode copper production device according to claim 1, characterized in that: It also comprises a guide plate (62), on which a guide rail (63) is provided, the guide rail (63) being arranged in an inclined manner, the guide plate (62) being located on both sides of the push plate (61), the push plate (61) being slidably connected to the guide rail (63), and the guide plate (62) being slidably connected to the bottom of the electrolytic cell (1).

3. A cathode copper production device according to claim 1, characterized in that: The push plate (61) is provided with a striking hammer (65), and the striking hammer (65) cooperates with the anode (3).

4. A cathode copper production device according to claim 1, characterized in that: It also includes a voltage detector, which is used to detect the voltage in the electrolytic cell (1), and the voltage detector is electrically connected to the controller.

5. A cathode copper production device according to claim 4, characterized in that: It also comprises an air pump (10), an air inlet is provided at the bottom of the electrolytic cell (1), the air pump (10) is connected to the air inlet, and the air inlet is provided with a one-way valve.

6. A cathode copper production device according to claim 5, characterized in that: A contact switch is provided at the bottom of the electrolytic cell (1), the contact switch is electrically connected to the controller, and the contact switch cooperates with the push plate (61).

7. A cathode copper production device according to claim 1, characterized in that: It also includes a base (9) for fixing the electrolytic cell (1), wherein the base (9) is fixedly connected to the electrolytic cell (1).

8. A cathode copper production process, characterized in that: The following steps are involved: step S10: Select a stainless steel plate or a titanium plate as a permanent cathode (2), select a lead-antimony-tin ternary plate as a grid anode (3), fix the cathode (2) and the anode (3) on the electrolytic cell (1), and then clean the stains on the cathode (2); Step S20: adding electrolyte via the circulation pump (8), and then controlling the air pump (10) to remove air from the electrolyte; Step S30: Turn on the power supply, perform electrolysis, set the flow rate of the circulation pump (8) to high speed, and then check the voltage through the voltage detector. When the voltage becomes high, the controller sets the flow rate of the circulation pump (8) to low speed, and removes the anode (3) mud on the anode (3) plate by knocking the hammer (65); Step S40: When the voltage detector detects that the voltage has returned to a stable value, the controller sets the flow rate of the circulation pump (8) to a high speed, and the cleaning mechanism (6) removes the mud from the bottom anode (3); Step S50: until the copper on the cathode (2) reaches the set purity, remove the copper adhering to the cathode (2), replace the anode (3), and the electrolysis is completed.

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