Copper oxide preparation equipment

Abstract

The utility model discloses copper oxide preparation equipment in the field of conductive film production, which comprises a reaction tank body, the top of the reaction tank body is provided with a copper powder feeding bin for supplementing metal copper materials, and the copper powder feeding bin is connected with the reaction tank body through a conveying pipe; a copper powder discharge port is formed in the bottom of the reaction tank body, the copper powder discharge port is communicated with the copper dissolving tank, and a valve assembly is arranged at the copper powder discharge port so as to close or open the copper powder discharge port; a dispersion cover is arranged at the upper end in the reaction tank body, and an outlet of the material conveying pipe directly faces the center of the dispersion cover; a circulating gas conveying mechanism is arranged on the reaction tank body, at least one part of the circulating gas conveying mechanism extends into the bottom of the reaction tank body, the circulating gas conveying mechanism is provided with a gas spraying opening located below the dispersion cover, and gas sprayed out of the gas spraying opening is headed with the copper powder, makes contact with the copper powder and reacts with the copper powder. The copper oxide production and processing equipment solves the problems of relatively complex structure and high manufacturing cost of the existing copper oxide production and processing equipment, is simple in structure and can reduce the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive film production, in particular to a copper oxide preparation device. Background Art

[0002] Conductive film is a polymer material with copper or aluminum layers plated on the top and bottom surfaces of substrates such as PET and PP. It has a sandwich structure and is also called a composite thin film current collector. It is a type of material with many good properties and is widely used in lithium-ion batteries, mainly as a battery current collector in lithium-ion batteries.

[0003] Copper dissolution plays a pivotal role in the entire production process of conductive metal films. As a key step in the production of copper foil, copper dissolution is mainly responsible for providing copper sulfate solution, providing stable raw material support for subsequent film manufacturing. In existing technologies, copper dissolution tanks are generally used as the main tool for preparing copper sulfate solution. During the preparation process, in order to ensure that the solution and copper material can fully contact and react chemically to generate the required copper sulfate, it is necessary to continuously and accurately transport the solution at the bottom of the copper dissolution tank to the top of the copper dissolution tank, and then let it flow back into the tank. In order to improve the efficiency of this chemical reaction, we often choose to use copper oxide powder as the copper material. Copper oxide, a seemingly ordinary chemical raw material, actually has a wide range of applications. From daily rayon, ceramics, glaze and enamel, to batteries, petroleum desulfurizers, pesticides in the high-tech field, and even hydrogen production, catalysts, green glass, etc., it is indispensable.

[0004] However, despite the wide range of uses of copper oxide, its preparation process is not simple. At present, we mainly prepare copper oxide through methods such as powder calcination, chemical synthesis, neutralization and electrolysis. Unfortunately, the equipment structure relied on by these preparation methods is often complex and expensive, which undoubtedly increases the production cost and limits the large-scale production of copper oxide. Therefore, how to build a copper oxide preparation device with a simpler structure and lower cost while ensuring production efficiency and quality has become a technical challenge facing the conductive metal film manufacturing industry.

[0005] The above defects need to be solved urgently. Utility Model Content

[0006] In order to solve the problem that the existing copper oxide production and processing equipment has a relatively complex structure and is expensive, the utility model provides a copper oxide preparation equipment.

[0007] The technical solution of the utility model is as follows:

[0008] A copper oxide preparation device comprises a reaction tank body, a copper powder feeding bin for replenishing metal copper material is arranged on the top of the reaction tank body, and the copper powder feeding bin is connected to the reaction tank body through a feeding pipe;

[0009] A copper powder discharge port is provided at the bottom of the reaction tank body, the copper powder discharge port is communicated with the copper dissolving tank, and a valve assembly is provided at the copper powder discharge port to close or open the copper powder discharge port;

[0010] A dispersion cover is arranged at the upper end of the interior of the reaction tank, and the outlet of the feed delivery pipe is directly opposite to the center of the dispersion cover;

[0011] The reaction tank body is provided with a circulating gas supply mechanism, at least a part of which extends into the bottom of the reaction tank body, and the circulating gas supply mechanism is provided with an air jet located below the dispersion cover, and the gas sprayed from the air jet hits the copper powder, contacts and reacts with the copper powder.

[0012] According to the above-mentioned solution of the utility model, the bottom surface of the reaction tank body is a straight section, and the straight section is smoothly connected with the conical guide section on the upper part of the valve core.

[0013] According to the utility model of the above scheme, the dispersion cover is a conical thin shell with a convex middle part, and a plurality of through holes are evenly distributed on the surface.

[0014] According to the utility model of the above scheme, a plurality of baffles are arranged below the dispersion cover, the plurality of baffles are arranged along the inner wall of the reaction tank body, and the outer ends of the plurality of baffles are all facing downwards.

[0015] According to the utility model of the above scheme, the circulating gas delivery mechanism includes a circulating pump, a circulating branch pipe, an injection pipe, a return air pipe and an oxygen storage tank. The circulating pump is arranged on the top of the reaction tank body, one end of the circulating branch pipe is connected to the circulating pump, the other end of the circulating branch pipe is connected to one end of the injection pipe, the other end of the injection pipe extends into the bottom of the reaction tank body, one end of the return air pipe is connected to the circulating pump, the other end of the return air pipe extends into the reaction tank body, and the outlet of the oxygen storage tank is connected to the inlet of the circulating pump through the return air pipe.

[0016] According to the utility model of the above scheme, there are two circulation branch pipes, and the two circulation branch pipes are symmetrically arranged on the reaction tank body, and the two circulation branch pipes are respectively connected to the corresponding injection pipes.

[0017] According to the above-mentioned solution of the utility model, the portion of the injection pipe extending into the reaction tank body is evenly distributed along the circumference of the reaction tank body.

[0018] According to the utility model of the above scheme, one end of the return air pipe extending into the reaction tank body is provided with a filter block for filtering copper oxide or unreacted copper powder.

[0019] According to the utility model of the above scheme, a conical section is arranged at the bottom of the reaction tank body, and the diameter of the conical section gradually decreases from top to bottom.

[0020] The utility model according to the above scheme has the following beneficial effects:

[0021] In the above copper oxide preparation equipment, a circulating gas delivery mechanism is arranged on the reaction tank body so that gas (oxygen or air containing oxygen) reacts with copper powder entering the reaction tank body to generate copper oxide. The utility model has a simple structure and can reduce production costs. The copper powder feeding bin is connected to the reaction tank body through a delivery pipe, and a valve assembly is arranged at the copper powder discharge port to close or open the copper powder discharge port. That is, the utility model can timely generate and supply copper oxide according to the requirements of the copper dissolving system at any time, and can flexibly adjust the discharge speed and quantity of the copper powder, that is, it can timely generate and supply copper oxide according to the real-time needs of the copper dissolving system at any time, which greatly improves the flexibility and response speed of production.

[0022] In addition, a dispersion hood is provided at the upper end of the interior of the reaction tank body, and the outlet of the feed pipe is directly opposite to the center of the dispersion hood. The dispersion hood can facilitate the copper powder in the copper powder feeding bin to enter the reaction tank body and disperse, so that the copper powder falls on the center of the dispersion hood and rolls down along the surrounding slopes, which not only increases the contact area between the copper powder and other substances in the reaction tank body, but also promotes the uniform progress of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a cross-sectional view of the utility model;

[0025] Figure 3 This is a disassembled diagram of the utility model.

[0026] In the figure, 1, reaction tank body; 11, conical section; 2, copper powder feeding bin; 3, feed pipe; 4, valve assembly; 41, valve core; 411, conical guide section; 412, clamping part; 42, valve stem; 5, dispersion cover; 6, circulating gas supply mechanism; 61, circulating pump; 62, circulating branch pipe; 63, injection pipe; 64, return air pipe; 65, oxygen storage tank; 7, copper dissolving tank; 8, vacuum pump; 9, air pressure detector. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] like Figure 1 As shown, the utility model provides a copper oxide preparation device, including a reaction tank body 1, a copper powder feeding bin 2 for replenishing metal copper material and a circulating gas delivery mechanism 6 are arranged on the top of the reaction tank body 1, and the copper powder feeding bin 2 is connected to the reaction tank body 1 through a delivery pipe 3. The reaction tank body 1 is the place where copper oxide is generated by reaction, and the copper powder feeding bin 2 is closely connected to the reaction tank body 1 through the delivery pipe 3, which ensures that the copper powder can be accurately delivered to the reaction tank body 1, providing a reliable raw material guarantee for the subsequent oxidation reaction; the circulating gas delivery mechanism 6 is used to input oxygen into the reaction tank body 1, and at least a part of the circulating gas delivery mechanism 6 extends into the bottom of the reaction tank body, and the circulating gas delivery mechanism 6 is provided with a gas jet located below the dispersion hood, and the gas ejected from the gas jet hits the copper powder, contacts and reacts with the copper powder, so that the oxygen reacts with the copper powder to generate copper oxide.

[0029] like Figure 2 , Figure 3 As shown, in this embodiment, a conical section 11 is provided at the bottom of the reaction tank body 1, and the diameter of the conical section 11 is gradually reduced from top to bottom, so that the copper powder or copper oxide powder is gathered at the discharge port. In addition, a copper powder discharge port is provided at the bottom of the reaction tank body 1, and the copper powder discharge port is connected to the copper dissolving tank 7, and a valve assembly 4 is provided at the copper powder discharge port to close or open the copper powder discharge port. Specifically, the valve assembly 4 includes a valve core 41, a valve stem 42 arranged at the bottom of the valve core 41, and the valve core 41 is arranged at the copper powder discharge port. The valve core 41 is connected to a drive assembly (not shown in the figure) through the valve stem 42, so that the drive assembly drives the valve core 41 to move up and down along the axial direction of the discharge port, that is, the valve core 41, the valve stem 42 and the drive assembly constitute a discharge valve to control the amount of copper oxide powder entering the copper dissolving tank 7, thereby controlling the reaction rate. In addition, the driving component can be designed as an external hydraulic cylinder or a gas cylinder (outside the reaction tank body 1). Of course, in actual design, the structure of the driving component can be designed according to actual needs.

[0030] like Figure 2 , Figure 3As shown, in this embodiment, the valve core 41 includes a conical guide section 411 and a clamping portion 412 located at the lower part of the conical guide section 411. The conical guide section 411 is located inside the reaction tank body 1. The clamping portion 412 is used to clamp with the copper powder discharge port of the reaction tank body 1, so as to close or open the copper powder discharge port. In addition, the bottom surface of the reaction tank body 1 is a straight section, and the straight section is smoothly connected with the conical guide section 411 at the upper part of the valve core 41. When the valve core 41 and the discharge port of the reaction tank body 1 are in a closed state, the conical guide section 411 can guide the gas ejected from the opening of the air cavity upward. At the same time, the special shape of the reaction tank body 1, which is small at the top and large at the bottom, is also conducive to the distribution and rolling of copper powder or copper oxide powder along the set direction, which is not only conducive to the complete reaction of copper powder and oxygen, but also can avoid the agglomeration of copper powder, so that the copper powder remains dry, improves the utilization rate of copper powder, and avoids the accumulation of copper powder or copper oxide powder at the discharge port, thereby preventing the reduction of copper oxide generation efficiency.

[0031] like Figure 2 , Figure 3 As shown, in this embodiment, a dispersion cover 5 is provided at the upper end of the interior of the reaction tank body 1, and the outlet of the feed pipe 3 is directly opposite to the center of the dispersion cover 5. The dispersion cover 5 can facilitate the copper powder in the copper powder feeding bin 2 to enter the reaction tank body 1 and disperse, so that the copper powder falls on the center of the dispersion cover 5 and rolls down along the surrounding slopes, which not only increases the contact area between the copper powder and other substances in the reaction tank body 1, but also promotes the uniform progress of the reaction. In addition, the dispersion cover 5 is a conical thin shell with a raised middle part, and a plurality of through holes are evenly distributed on the surface, so that the copper powder can continuously fall from the through holes, further ensuring the continuity and stability of the reaction.

[0032] In an optional embodiment, a plurality of baffles are arranged below the dispersion hood 5, and the plurality of baffles are arranged along the inner wall of the reaction tank body 1, and the outer ends of the plurality of baffles are all facing downward, which can further slow down the falling of the copper powder, and also can prevent the copper powder or copper oxide powder from rebounding to the top of the reaction tank body 1.

[0033] like Figure 2 , Figure 3As shown, in this embodiment, the circulating gas supply mechanism 6 includes a circulating pump 61, a circulating branch pipe 62, an injection pipe 63, a return pipe 64 and an oxygen storage tank 65. The circulating pump 61 is arranged at the top of the reaction tank body 1, one end of the circulating branch pipe 62 is connected to the circulating pump 61, the other end of the circulating branch pipe 62 is connected to one end of the injection pipe 63, the other end of the injection pipe 63 extends into the bottom of the reaction tank body 1, one end of the return pipe 64 is connected to the circulating pump 61, the other end of the return pipe 64 extends into the reaction tank body 1, and the outlet of the oxygen storage tank 65 is connected to the inlet of the circulating pump 61 through the return pipe 64. The air jet port of the injection pipe 63 of the circulating gas supply mechanism 6 faces upward, and the gas ejected from the air jet port of the injection pipe 63 collides with the copper powder, which can blow away the copper powder and increase the contact area between oxygen and copper powder, which is beneficial to the reaction and generation of copper oxide. In addition, the circulating gas supply mechanism 6 can delay the falling speed of the copper powder, increase the reaction time of the contact between oxygen and copper powder, and improve the reaction probability of the copper powder during a single fall. At the same time, the circulating gas supply mechanism 6 can also play a role in drying the copper powder or oxidizing the copper powder.

[0034] Specifically, the circulating pump 61 acts as a power source to drive the gas to flow in the pipeline, forming a continuous gas circulation, which helps to ensure that the gas distribution in the reaction tank body 1 is uniform, avoiding the situation where the local gas concentration is too high or too low, thereby improving the uniformity and efficiency of the reaction. Secondly, the setting of the injection pipe 63 enables the gas to be sprayed to the bottom of the reaction tank body 1 at a certain speed and pressure, which can not only fully stir and suspend the copper powder at the bottom, increase the contact area between the copper powder and the gas, but also provide necessary power for the reaction, and promote the oxidation reaction. In addition, the design of the return air pipe 64 enables the gas at the top of the reaction tank body 1 to be recovered and re-enter the circulation, which not only reduces the waste of gas, reduces production costs, but also helps to maintain the stability of the gas concentration in the reaction tank body 1. At the same time, the return air pipe 64 is also connected to the oxygen storage tank 65, and fresh oxygen is added to the reaction tank body 1 as needed to ensure the continuous progress of the reaction. In addition, the end of the return air pipe 64 extending into the reaction tank body 1 is provided with a filter block, which is only for air or oxygen to pass through, and the filter block can filter copper oxide or unreacted copper powder.

[0035] like Figure 2 , Figure 3As shown, in the present embodiment, the portion of the injection tube 63 extending into the reaction tank body 1 is uniformly distributed along the circumference of the reaction tank body 1, and the gas can be injected into the reaction tank body 1 from multiple directions at the same time, avoiding the situation where the local gas concentration is too high or too low, so that the contact between the gas and the copper powder is more uniform. Secondly, the uniformly distributed injection tube 63 can increase the contact area between the gas and the copper powder, and can ensure that the copper powder is fully stirred and suspended in the reaction tank body 1, thereby increasing the contact opportunity between the gas and the copper powder and improving the reaction efficiency. In addition, this design also helps to reduce the dead angles and blind spots in the reaction tank body 1. The dead angles and blind spots are areas in the reaction tank body 1 that are difficult for the gas and copper powder to reach, which can easily lead to incomplete reactions or produce uneven products, and the injection tube 63 is uniformly distributed along the circumference to ensure that the gas can cover the entire reaction tank body 1, reduce the existence of dead angles and blind spots, thereby improving the uniformity and completeness of the reaction.

[0036] like Figures 1 to 3 As shown, in this embodiment, there are two circulation branches 62, and the two circulation branches 62 are symmetrically arranged on the reaction tank body 1, and the two circulation branches 62 are respectively connected to the corresponding injection pipes 63 to ensure the air pressure balance of each injection pipe 63. In addition, the injection pipe 63 is U-shaped, and its U-shaped bottom is fixed on the tank body. Even if the dust in the reaction tank body 1 enters the injection pipe 63, it can only be placed at the bottom of the injection pipe 63 and can re-enter the tank body during the oxygen circulation process. The oxygen sprayed from the injection pipe 63 can rise and continuously contact and react with the falling copper powder. At the same time, the oxygen can also slow down the falling speed of the copper powder, ensuring that the oxygen and the copper powder have sufficient reaction time.

[0037] like Figure 2 , Figure 3 As shown, in this embodiment, a vacuum pump 8 is also provided on the top of the reaction tank body 1 to discharge the air and the like inside the reaction tank body 1 before the reaction. In addition, since the generation of copper oxide will continuously consume oxygen, a pressure detector 9 is also provided on the top of the reaction tank body 1 to detect the reaction pressure in the reaction tank body 1, so as to facilitate the real-time replenishment of oxygen into the reaction tank body 1. In addition, the outlet of the oxygen storage tank 65 is connected to the inlet of the circulation pump 61, and a solenoid valve is provided at the outlet of the oxygen storage tank 65. When the pressure detected by the pressure detector 9 is too low, the solenoid valve is opened, and the circulation pump 61 can replenish oxygen into the reaction tank body 1. When the pressure detected by the pressure detector 9 reaches the set range, the solenoid valve is closed.

[0038] The copper oxide preparation equipment of the utility model has a simple structure and can reduce production costs. The copper powder feeding bin 2 is connected to the reaction tank body 1 through the feeding pipe 3. A valve assembly 4 is provided at the copper powder discharge port to close or open the copper powder discharge port. That is, the utility model can timely generate and supply copper oxide according to the requirements of the copper dissolving system at any time, and can flexibly adjust the discharge speed and quantity of the copper powder, that is, it can timely generate and supply copper oxide according to the real-time needs of the copper dissolving system at any time, which greatly improves the flexibility and response speed of production.

[0039] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0040] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A copper oxide preparation device, characterized in that: It comprises a reaction tank body, the top of which is provided with a copper powder feeding bin for replenishing metal copper material, and the copper powder feeding bin is connected to the reaction tank body through a feeding pipe; A copper powder discharge port is provided at the bottom of the reaction tank body, the copper powder discharge port is communicated with the copper dissolving tank, and a valve assembly is provided at the copper powder discharge port to close or open the copper powder discharge port; A dispersion cover is arranged at the upper end of the interior of the reaction tank, and the outlet of the feed delivery pipe is directly opposite to the center of the dispersion cover; The reaction tank body is provided with a circulating gas supply mechanism, at least a part of which extends into the bottom of the reaction tank body, and the circulating gas supply mechanism is provided with an air jet located below the dispersion cover, and the gas sprayed from the air jet hits the copper powder, contacts and reacts with the copper powder.

2. The copper oxide preparation equipment according to claim 1, characterized in that: The valve assembly includes a valve core and a valve stem arranged at the bottom of the valve core. The valve core is arranged at the copper powder discharge port. The valve core is connected to a drive assembly through the valve stem, so that the drive assembly drives the valve core to move up and down along the axial direction of the discharge port.

3. The copper oxide preparation equipment according to claim 2, characterized in that: The bottom surface of the reaction tank body is a straight section, and the straight section is smoothly connected with the conical guide section on the upper part of the valve core.

4. The copper oxide preparation equipment according to any one of claims 1 to 3, characterized in that: The dispersion cover is a conical thin shell with a raised middle portion and a plurality of through holes evenly distributed on the surface.

5. The copper oxide preparation equipment according to any one of claims 1 to 3, characterized in that: A plurality of baffles are arranged below the dispersion cover, and the baffles are arranged along the inner wall of the reaction tank body, and the outer ends of the baffles are all facing downwards.

6. The copper oxide preparation equipment according to any one of claims 1 to 3, characterized in that: The circulating gas delivery mechanism includes a circulating pump, a circulating branch pipe, an injection pipe, a return air pipe and an oxygen storage tank. The circulating pump is arranged on the top of the reaction tank body, one end of the circulating branch pipe is connected to the circulating pump, the other end of the circulating branch pipe is connected to one end of the injection pipe, the other end of the injection pipe extends into the bottom of the reaction tank body, one end of the return air pipe is connected to the circulating pump, the other end of the return air pipe extends into the reaction tank body, and the outlet of the oxygen storage tank is connected to the inlet of the circulating pump through the return air pipe.

7. The copper oxide preparation equipment according to claim 6, characterized in that: There are two circulation branches, and the two circulation branches are symmetrically arranged on the reaction tank body, and the two circulation branches are respectively connected to the corresponding injection pipes.

8. The copper oxide preparation equipment according to claim 6, characterized in that: The portion of the injection pipe extending into the reaction tank body is evenly distributed along the circumference of the reaction tank body.

9. The copper oxide preparation equipment according to claim 7 or 8, characterized in that: One end of the return air pipe extending into the reaction tank body is provided with a filter block for filtering copper oxide or unreacted copper powder.

10. The copper oxide preparation equipment according to any one of claims 1 to 3, characterized in that: A conical section is arranged at the bottom of the reaction tank body, and the diameter of the conical section gradually decreases from top to bottom.

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