Oxygen pressure leaching tank
By installing a gas equalization component in the oxygen pressure leaching reactor, the problem of uneven oxygen pressure inside the reactor was solved, achieving uniform gas distribution within the reactor and improving the metal leaching effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINGMEN GEM NEW MATERIAL CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-06-23
Smart Images
Figure CN224394965U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metal leaching technology, and in particular to an oxygen pressure leaching reactor. Background Technology
[0002] Oxygen pressure leaching (OPL) is an enhanced hydrometallurgical process with advantages such as high metal recovery rate, short leaching time, and environmental friendliness. In recent years, OPL has been gradually promoted in the non-ferrous metal hydrometallurgical industry. This technology utilizes oxygen to react with metal sulfides in the ore under high pressure to leach metals. It boasts significant advantages such as fast reaction rate, high metal leaching rate, and environmental friendliness, effectively improving resource utilization and reducing production costs, thus meeting the urgent need of the non-ferrous metals industry for efficient and green production technologies.
[0003] In existing technologies, the structure of an oxygen pressure leaching reactor mainly consists of a reactor body, a stirring device, an oxygen inlet device, and a heating and cooling system. The reactor body is typically made of a high-pressure resistant and corrosion-resistant metal material, providing a sealed space for the reaction. The stirring device is generally installed inside the reactor body, and a motor drives the stirring paddle to rotate, thus stirring the slurry and promoting material mixing and reaction. The oxygen inlet device is usually an air inlet pipe located at different positions on the reactor body, with several air outlets distributed on the inlet pipe, through which oxygen enters the reactor body. The heating and cooling system is used to control the reaction temperature inside the reactor to meet the needs of different reaction stages.
[0004] However, oxygen diffusion within the vessel mainly relies on stirring and natural diffusion. The stirring range and intensity of the stirring device are limited, making it difficult to quickly and evenly distribute oxygen to all corners of the vessel. Simultaneously, the vents on the inlet pipe are concentrated in a specific area of the vessel, causing oxygen to easily accumulate in localized high-pressure zones after being introduced, while other areas have lower oxygen content and insufficient oxygen pressure, resulting in poor overall metal leaching performance. Utility Model Content
[0005] The purpose of this invention is to provide an oxygen pressure leaching reactor, which solves the problem of uneven oxygen pressure distribution in the reactor body during the existing oxygen pressure leaching process, resulting in poor overall metal leaching effect.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] This utility model provides an oxygen pressure leaching vessel, which includes:
[0008] The vessel body;
[0009] A stirring shaft is rotatably connected to the vessel body. One end of the stirring shaft is connected to a drive component, and the other end is equipped with a stirring paddle.
[0010] An air inlet pipe is wound around the bottom of the vessel body and has an air inlet connector. The air inlet connector passes through the vessel body and is connected to the gas supply equipment. The air inlet pipe has multiple air injection holes, and each air injection hole is equipped with a gas equalization component to evenly diffuse the gas into the vessel body.
[0011] Optionally, the gas equalization component includes:
[0012] A gas equalization shell has a gas equalization cavity inside, the cross-sectional area of the gas equalization cavity is larger than the cross-sectional area of the air injection hole, and the gas equalization shell has a plurality of gas equalization holes that are spaced apart and communicate with the gas equalization cavity.
[0013] Optionally, the sidewall of the gas equalization shell extends obliquely, and the gas equalization holes are distributed on the sidewall of the gas equalization shell.
[0014] Optionally, the inner top wall of the gas-distributing shell has a gas-guiding section, and the side of the gas-guiding section facing the gas injection hole is an arc surface.
[0015] Optionally, the gas equalization component further includes:
[0016] The gas guide column has one end connected to the gas injection hole and the other end fixedly connected to the bottom wall of the gas equalization shell and connected to the gas equalization cavity. The gas guide column has a gas guiding channel to guide the gas from the gas injection hole to the gas equalization cavity.
[0017] Optionally, the side of the air guide column has multiple exhaust holes communicating with the air guide channel.
[0018] Optionally, the number of exhaust holes is less than the number of air distribution holes.
[0019] Optionally, the lower end of the air guide column has a connecting portion, which is threadedly connected to the air injection hole.
[0020] Optionally, the gas distribution component is arranged vertically corresponding to the stirring paddle.
[0021] Optionally, an air inlet connector is provided between two adjacent air distribution components.
[0022] The beneficial effects of this utility model are:
[0023] During the oxygen pressure leaching process, the drive unit rotates the stirring shaft and impeller. Gas is injected into the inlet pipe through the gas supply device via the inlet connector. The gas in the inlet pipe then enters the gas distribution component through the gas injection port. The gas distribution component evenly diffuses the gas into the interior of the vessel. As the impeller rotates, it further disperses the gas, ensuring a uniform distribution within the vessel. Therefore, this oxygen pressure leaching vessel effectively distributes the gas evenly within the vessel, reducing the possibility of pressure imbalances and ensuring similar oxygen content in all areas of the vessel, thus contributing to the stability of the overall metal leaching effect. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the internal structure of the oxygen pressure leaching vessel in an embodiment of this utility model;
[0025] Figure 2 This is a cross-sectional view of the gas equalization component structure of the oxygen pressure leaching kettle of this utility model;
[0026] Figure 3 This is a top view of the air inlet pipe and gas equalization component of the oxygen pressure leaching kettle of this utility model.
[0027] In the picture:
[0028] 1. Vessel body; 2. Stirring shaft; 21. Stirring paddle; 3. Air inlet pipe; 4. Drive component; 5. Air inlet connector; 6. Gas distribution assembly; 61. Gas distribution shell; 611. Gas distribution chamber; 612. Gas distribution hole; 62. Gas guide section; 63. Gas guide column; 631. Exhaust hole; 632. Connecting part. Detailed Implementation
[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.
[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.
[0033] This utility model discloses an oxygen pressure leaching vessel.
[0034] Reference Figures 1 to 3 The oxygen pressure leaching vessel includes a vessel body 1, a stirring shaft 2, and an air inlet pipe 3. The stirring shaft 2 is rotatably connected to the vessel body 1, with one end connected to a drive unit 4 and the other end equipped with a stirring paddle 21. The air inlet pipe 3 is wound around the bottom of the vessel body 1 and has an air inlet connector 5. The air inlet connector 5 passes through the vessel body 1 and is connected to the gas supply equipment. The air inlet pipe 3 has multiple air injection holes, and each air injection hole is equipped with a gas equalization component 6 to evenly diffuse the gas into the vessel body 1.
[0035] Specifically, a stirring shaft 2 is installed on the top wall of the vessel body 1. The upper end of the stirring shaft 2 is fixedly connected to the output end of a drive unit 4, which can be a servo motor. A stirring paddle 21 is fixedly installed at the lower end of the stirring shaft 2. An air inlet pipe 3 is laid on the bottom wall of the vessel body 1. The air inlet pipe 3 can be arranged in an "S" shape or other shapes. An air inlet connector 5 is installed on the bottom wall of the air inlet pipe 3. The air inlet connector 5 passes through the bottom wall of the vessel body 1 and is connected to a corresponding air supply device, which can continuously provide oxygen or air at a specific pressure. Multiple air injection holes are opened on the top wall of the air inlet pipe 3. The multiple air injection holes are spaced apart along the length of the air inlet pipe 3, and the arrangement of the air inlet pipe 3 makes the multiple air injection holes evenly distributed inside the vessel body 1. Each air injection hole is equipped with a gas equalization component 6. The gas equalization component 6 has multiple through holes at a certain height inside the vessel body 1 so that the gas can be evenly diffused into the vessel body 1. It should be understood that, in order to protect the safety of the pipeline, valves and other structures can be installed at the corresponding interfaces to control the opening and closing of the pipeline. The specific valve installation location and control logic can be designed according to the actual process flow and existing technology, and this utility model does not limit this.
[0036] During the oxygen pressure leaching process, the drive unit 4 rotates the stirring shaft 2 and the stirring paddle 21. Gas is injected into the inlet pipe 3 through the gas supply device via the gas inlet connector 5. The gas in the inlet pipe 3 then enters the gas equalization component 6 through the gas injection hole. The gas equalization component 6 evenly diffuses the gas into the interior of the vessel body 1. With the rotation of the stirring paddle 21, the gas is further dispersed, resulting in a uniform gas distribution inside the vessel body 1. Therefore, when this oxygen pressure leaching vessel is in use, it can effectively distribute the gas evenly inside the vessel body 1, reducing the possibility of uneven gas pressure inside the vessel body 1 and ensuring that the oxygen content in each area inside the vessel body 1 is similar, which is beneficial to ensuring the stability of the overall metal leaching effect.
[0037] Optionally, the gas equalization component 6 includes a gas equalization shell 61. The gas equalization shell 61 has a gas equalization cavity 611 inside, the cross-sectional area of the gas equalization cavity 611 is larger than the cross-sectional area of the air injection hole, and the gas equalization shell 61 has a plurality of gas equalization holes 612 that communicate with the gas equalization cavity 611 at intervals.
[0038] Specifically, the gas distribution shell 61 is block-shaped, and its size is larger than that of the air injection hole, so that the cross-sectional area of the gas distribution chamber 611 is larger than that of the air injection hole. The bottom wall of the gas distribution shell 61 is sealed and connected to the air injection hole, and multiple through holes are opened on the side of the gas distribution shell 61 as gas distribution holes 612.
[0039] By setting up a gas-uniform shell 61 to form a gas-uniform cavity 611, when gas is discharged from the gas injection hole, the gas will first enter the gas-uniform cavity 611 and accumulate, and then enter the interior of the vessel body 1 from different directions through multiple gas-uniform holes 612, thereby enabling the gas to be evenly distributed within the vessel body 1. At the same time, the small aperture of the gas-uniform holes 612 can also accelerate the flow of gas, further improving the gas diffusion effect.
[0040] Optionally, the sidewall of the gas equalization shell 61 extends obliquely, and the gas equalization holes 612 are distributed on the sidewall of the gas equalization shell 61.
[0041] Specifically, the sidewall of the gas equalization shell 61 is inclined and extended, making the gas equalization shell 61 as a whole truncated cone shape. The gas equalization holes 612 are distributed on the sidewall of the gas equalization shell 61, so that each gas equalization hole 612 is inclined upward and each gas equalization hole 612 faces a different area of the vessel body 1, thereby enabling the gas to be sprayed obliquely to the upper side of the vessel body 1, so as to further improve the effect of uniform gas distribution in the vessel body 1.
[0042] Optionally, the inner top wall of the gas distribution shell 61 has a gas guide portion 62, and the side of the gas guide portion 62 facing the gas injection hole is an arc surface.
[0043] Specifically, the gas guide 62 is block-shaped and can be integrally formed with the gas equalization shell 61. The lower side of the gas guide 62 is arc-shaped; in this embodiment, the gas guide 62 has a hemispherical structure. By setting the arc-shaped surface, the gas entering the gas equalization chamber 611 will directly contact the arc-shaped surface, reducing the energy loss caused by the gas directly impacting the cavity wall of the gas equalization chamber 611. This helps maintain the gas flow rate so that it can flow along the arc-shaped surface to the side wall of the gas equalization shell 61 and be quickly discharged from the gas equalization shell 61.
[0044] Optionally, the gas equalization assembly 6 also includes a gas guide column 63. One end of the gas guide column 63 is connected to the gas injection hole, and the other end is fixedly connected to the bottom wall of the gas equalization shell 61 and communicates with the gas equalization chamber 611. The gas guide column 63 has a gas guiding channel to guide the gas from the gas injection hole to the gas equalization chamber 611.
[0045] Specifically, the air guide column 63 extends vertically and is hollow inside to serve as an air guide channel. The lower end of the air guide column 63 is sealed and connected to the air injection hole. The two can be inserted and fitted together, and a sealing structure is provided at the connection to form a sealed connection. The upper end of the air guide column 63 can be integrated with the gas distribution shell 61 to ensure good airtightness at the connection.
[0046] By setting the gas guide column 63, the gas equalization shell 61 can be fixed at a specified height in the vessel body 1. After the gas is introduced into the gas equalization chamber 611 through the gas guide channel, the gas is then evenly diffused through the gas equalization shell 61, so that the gas diffuses at the specified height in the vessel body 1, thereby further improving the uniform distribution effect of the gas in the vessel body 1. The specific height of the gas guide column 63 can be designed according to the actual internal structure and size of the vessel body 1, and this utility model does not limit it.
[0047] Optionally, the side of the air guide column 63 has a plurality of exhaust holes 631 communicating with the air guide channel.
[0048] Specifically, a through hole is made on the side wall of the gas guide column 63 as an exhaust hole 631, so that when the gas passes through the gas guide channel, some of the gas can be discharged to the bottom of the vessel body 1 through the exhaust hole 631. The exhaust hole 631, together with the gas equalization hole 612, can further improve the effect of uniform gas distribution in the vessel body 1.
[0049] Optionally, the number of vent holes 631 is less than the number of air distribution holes 612.
[0050] Specifically, the number of exhaust holes 631 is relatively small, so that only a small portion of the gas can be discharged through the exhaust holes 631, and most of it will enter the gas equalization chamber 611 along the gas guide channel and diffuse evenly into the vessel body 1 through the gas equalization holes 612. The specific relative number of exhaust holes 631 and gas equalization holes 612 can be designed according to the actual gas diffusion effect, and this utility model does not limit it.
[0051] Optionally, the lower end of the air guide column 63 has a connecting part 632, which is threadedly connected to the air injection hole.
[0052] Specifically, the lower end of the air guide column 63 protrudes downward to form a connecting part 632. The outer side of the connecting part 632 is provided with an external thread, and the inner side of the air injection hole is provided with an internal thread, so that the connecting part 632 and the air injection hole form a threaded engagement, thereby forming a sealed connection between the air guide column 63 and the air injection hole.
[0053] Optionally, the gas distribution component 6 and the stirring paddle 21 are arranged vertically in correspondence.
[0054] Specifically, the gas equalization component 6 is located below the stirring paddle 21. In this embodiment, there are two gas equalization components 6 below each stirring paddle 21. After the gas equalization component 6 diffuses the gas into the vessel body 1, the rotation of the stirring paddle 21 can further diffuse the gas, thereby further improving the uniform distribution of the gas in the vessel body 1.
[0055] Optionally, an air inlet connector 5 is provided between two adjacent air distribution components 6.
[0056] Specifically, multiple air inlet connectors 5 can be connected to an air inlet device or connected to the same air inlet device, so that the gas can quickly fill the air inlet pipe 3, and the gas passing through the air inlet connectors 5 can quickly flow into two adjacent gas equalization components 6, so that multiple gas equalization components 6 can diffuse the gas at similar speeds, which is beneficial to improving the uniform distribution of gas in the vessel body 1.
[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An oxygen pressure leaching vessel, characterized in that, include: The vessel body (1); A stirring shaft (2) is rotatably connected to the vessel body (1). One end of the stirring shaft (2) is connected to the drive component (4), and the other end is provided with a stirring paddle (21). An air inlet pipe (3) is wound around the bottom of the vessel body (1) and has an air inlet connector (5). The air inlet connector (5) passes through the vessel body (1) and is connected to the gas supply equipment. The air inlet pipe (3) has multiple air injection holes. Each air injection hole is equipped with a gas equalization component (6) to evenly diffuse the gas into the vessel body (1).
2. The oxygen pressure leaching vessel according to claim 1, characterized in that, The gas equalization component (6) includes: A gas equalization shell (61) has a gas equalization cavity (611) inside. The cross-sectional area of the gas equalization cavity (611) is larger than the cross-sectional area of the air injection hole. The gas equalization shell (61) has a plurality of gas equalization holes (612) that are connected to the gas equalization cavity (611) at intervals.
3. The oxygen pressure leaching vessel according to claim 2, characterized in that, The sidewall of the gas equalization shell (61) extends obliquely, and the gas equalization holes (612) are distributed on the sidewall of the gas equalization shell (61).
4. The oxygen pressure leaching vessel according to claim 2, characterized in that, The inner top wall of the gas-equalizing shell (61) has a gas guide (62), and the side of the gas guide (62) facing the gas injection hole is an arc surface.
5. The oxygen pressure leaching vessel according to claim 2, characterized in that, The gas equalization component (6) also includes: The gas guide column (63) has one end connected to the gas injection hole and the other end fixedly connected to the bottom wall of the gas equalization shell (61) and connected to the gas equalization cavity (611). The gas guide column (63) has a gas guiding channel to guide the gas from the gas injection hole to the gas equalization cavity (611).
6. The oxygen pressure leaching vessel according to claim 5, characterized in that, The side of the air guide column (63) has a plurality of exhaust holes (631) that communicate with the air guide channel.
7. The oxygen pressure leaching vessel according to claim 6, characterized in that, The number of exhaust holes (631) is less than the number of air distribution holes (612).
8. The oxygen pressure leaching vessel according to claim 5, characterized in that, The lower end of the air guide column (63) has a connecting part (632), which is threadedly connected to the air injection hole.
9. The oxygen pressure leaching vessel according to any one of claims 1 to 8, characterized in that, The gas equalization component (6) and the stirring paddle (21) are arranged vertically in correspondence.
10. The oxygen pressure leaching vessel according to any one of claims 1 to 8, characterized in that, An air inlet connector (5) is provided between two adjacent air distribution components (6).