Hydrometallurgical extraction reactor

Abstract

The utility model discloses a hydrometallurgy extraction reactor relates to hydrometallurgy technical field, specifically includes the extraction reactor body for hydrometallurgy, the sealing cover of extraction reactor body adaptation, the middle part of sealing cover is provided with feed mixing structure, the feed mixing structure includes the rotary block of sealing cover middle part swing joint, the middle part of rotary block is connected with the stirring rod, the inner chamber of stirring rod is provided with extraction liquid flow channel and extracted liquid flow channel. This hydrometallurgy extraction reactor has the centrifugal function, makes the liquid drop that too refining in liquid phase after extraction can collide and gather and forms the liquid drop cluster of larger size, effectively inhibits the stability of emulsion, and the subsequent delamination of liquid phase is convenient, and the same power source is driven to the inner cylinder and feed mixing structure, simplifies the extraction reactor structure, reduces manufacturing cost and operation and maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of hydrometallurgical technology, specifically to a hydrometallurgical extraction reactor. Background Technology

[0002] Hydrometallurgy is a process technology that uses chemical solvents (such as acids, alkalis, and complexing agents) to selectively react with target metals in ores, metallurgical intermediates, or scrap metals, converting them into soluble metal ions. High-purity metals or compounds are then obtained through separation, purification, and deposition. In the hydrometallurgical process, extraction is a crucial step for separating and enriching metal ions. The selective transfer of the target metal is achieved through the difference in partition coefficients between the organic and aqueous phases. An extraction reactor is required in this process.

[0003] In related technologies, to improve mass transfer efficiency, high-intensity stirring is often used to disperse the liquid phase into tiny droplets. However, if the droplets are made too fine, they can easily form stable emulsions, affecting subsequent separation efficiency. Furthermore, relying solely on stirring to disperse the liquid phase into fine droplets reduces liquid phase mixing efficiency. Based on this, this application proposes a hydrometallurgical extraction reactor. Utility Model Content

[0004] This invention provides a hydrometallurgical extraction reactor, which solves the problems mentioned in the background art, such as relying solely on stirring to disperse the liquid phase into fine droplets, reducing the liquid phase mixing efficiency; and the excessively fine droplets generated by stirring easily forming stable emulsions, affecting the subsequent separation efficiency.

[0005] This utility model provides the following technical solution: a hydrometallurgical extraction reactor, comprising an extraction reactor body for hydrometallurgy and a sealing cover adapted to the extraction reactor body. A feeding and stirring structure is provided in the middle of the sealing cover. The feeding and stirring structure includes a rotating block movably connected to the middle of the sealing cover. A stirring rod is connected to the middle of the rotating block. The inner cavity of the stirring rod is provided with an extract liquid channel and an extractable liquid channel. An outer ring at the top of the stirring rod is fitted with an extract liquid storage ring communicating with the inner cavity of the extract liquid channel and an extractable liquid storage ring communicating with the inner cavity of the extractable liquid channel. A plurality of stirring blade groups are movably fitted on the outer ring of the stirring rod. The stirring blade groups are connected to the rotating block via a first electric telescopic rod. Each stirring blade group includes a stirring blade, which is hollow. Drainage holes are evenly provided on both sides of the inner cavity of the stirring blade. An outlet hole is provided on the side wall of both the extract liquid channel and the extractable liquid channel, and the outlet hole is adapted to the inlet end of the stirring blade's inner cavity.

[0006] Preferably, the inner cavity of the extraction reactor body is movably connected to an inner cylinder, and an electric drain valve is provided at the middle of the bottom of the inner cylinder. The outlet end of the electric drain valve extends to the outside of the extraction reactor body, and the electric drain valve is movably connected to the extraction reactor body.

[0007] Preferably, a fixing ring is fixedly connected to the top of the inner cylinder, a connecting plate is movably connected to the top of the inner cavity of the inner cylinder, the connecting plate is movably sleeved on the outer ring of the rotating block, the connecting plate is connected to the fixing ring by a spring, insert rods are evenly arranged on the top of the connecting plate, and insert plates adapted to the insert rods are evenly connected to the outer side wall of the bottom end of the rotating block.

[0008] Preferably, the inner wall of the extractable liquid storage ring is uniformly provided with holes, the top end of the extractable liquid flow channel and the top end of the extractable liquid flow channel are both inlaid with connecting mesh plates, and the inner wall of the extractable liquid storage ring and the inner wall of the extractable liquid storage ring are both provided with holes adapted to the connecting mesh plates.

[0009] Preferably, the inlet end of the extract storage ring is provided with a first delivery pipe, and the inlet end of the extract storage ring is provided with a second delivery pipe.

[0010] Preferably, the inner cavity of the stirring blade is connected to a positioning tube via a second electric telescopic rod, and the positioning tube is adapted to both the liquid outlet and the liquid inlet of the stirring blade.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This hydrometallurgical extraction reactor has a centrifugal function, which allows excessively fine droplets in the extracted liquid phase to collide and coalesce into larger droplet clusters, effectively suppressing the stability of the emulsion and facilitating subsequent stratification of the liquid phase; moreover, the inner cylinder and the feed stirring structure are driven by the same power source, simplifying the structure of the extraction reactor and reducing manufacturing costs and maintenance difficulty.

[0012] 2. This hydrometallurgical extraction reactor injects the liquid phase into the reactor in the form of tiny droplets, increasing the contact area and distribution uniformity of the two phases. Furthermore, the two phases undergo instantaneous contact and shear dispersion upon meeting, avoiding the efficiency loss caused by the initial overall mixing and subsequent dispersion of the two phases in traditional processes. Simultaneously, the injected liquid phase possesses initial kinetic energy, creating turbulent disturbances within the reactor, accelerating the secondary breakup and uniform distribution of the droplets, further enhancing the speed of uniform mixing between the two phases. Attached Figure Description

[0013] Figure 1 This is a front view of the hydrometallurgical extraction reactor proposed in this utility model; Figure 2 The structure of this utility model Figure 1 Cross-sectional view; Figure 3 This is a schematic diagram of the feeding and mixing structure of this utility model; Figure 4 This is a schematic cross-sectional view of the stirring rod structure of this utility model; Figure 5 This is a schematic diagram of the stirring blade assembly of this utility model; Figure 6 This is a schematic cross-sectional view of the stirring blade of this utility model.

[0014] In the diagram: 1. Extraction reactor body; 2. Sealing cap; 3. Electric drain valve; 4. Stirring rod; 5. Extracted liquid storage ring; 6. Extracted liquid storage ring; 7. Drive structure; 8. Inner cylinder; 9. Fixing ring; 10. Connecting plate; 11. Spring; 12. Insert rod; 13. Rotating block; 14. Insert plate; 15. First electric telescopic rod; 16. Stirring blade; 17. Second delivery pipe; 18. First delivery pipe; 19. Extracted liquid flow channel; 20. Extracted liquid flow channel; 21. Liquid outlet; 22. Connecting mesh plate; 23. Positioning insert; 24. Drain hole; 25. Second electric telescopic rod; 26. Mounting frame. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides embodiments: Please refer to Figures 1-6 A hydrometallurgical extraction reactor includes an extraction reactor body 1 for hydrometallurgical processes and a sealing cover 2 adapted to the extraction reactor body 1. The extraction reactor body 1 and the sealing cover 2 form a sealed extraction reactor. An inner cylinder 8 is movably connected to the inner cavity of the extraction reactor body 1. During use, the extractant and the extractant solution in the hydrometallurgical process are fully mixed within the inner cylinder 8, and the extraction reaction takes place. An electric drain valve 3 is located at the center of the bottom of the inner cylinder 8. The outlet end of the electric drain valve 3 extends to the outside of the extraction reactor body 1. The electric drain valve 3 is movably connected to the extraction reactor body 1. After extraction, the liquid phase in the inner cylinder 8 can be discharged through the electric drain valve 3. The electric drain valve 3 is a mature technology product, and its structure, working principle, and application characteristics have been fully disclosed in the prior art (e.g., fluid on / off control is achieved by driving the valve core with a motor, or automated draining operation is achieved by using an electromagnetic coil in conjunction with a mechanical structure). Those skilled in the art can directly obtain relevant technical solutions based on conventional technical knowledge; therefore, its specific composition and working principle will not be elaborated upon here.

[0017] A feeding and stirring structure is provided in the middle of the sealing cover 2. The feeding and stirring structure includes a rotating block 13 movably connected to the middle of the sealing cover 2. The top end of the rotating block 13 is located outside the sealing cover 2, and the bottom end of the rotating block 13 is located inside the extraction reactor body. A driving structure 7 is provided on the sealing cover 2 to drive the rotating block 13 to rotate. The driving structure 7 is connected to the sealing cover 2 through a mounting bracket 26. In embodiment 1, the driving structure 7 is a servo motor, and its rotation speed can be precisely adjusted according to requirements. The model of the driving structure 7 can be selected according to requirements and is not limited here. The output shaft end of the driving structure 7 is connected to a gear through conventional components such as a reducer. A gear ring is connected to the top of the rotating block 13. The gear and the gear ring are in a meshing state. When the driving structure 7 is working, the driving structure 7 can drive the gear connected to it to rotate. The gear can drive the rotating block 13 to rotate through the meshing gear ring.

[0018] A stirring rod 4 is connected to the middle of the rotating block 13. When the rotating block 13 rotates, it can drive the stirring rod 4 to rotate. The inner cavity of the stirring rod 4 is provided with an extract liquid flow channel 19 and an extractable liquid flow channel 20. The outer ring of the top of the stirring rod 4 is movably fitted with an extract liquid storage ring 6 and an extractable liquid storage ring 5. Both the extract liquid storage ring 6 and the extractable liquid storage ring 5 are fixedly connected to the mounting bracket 26. The inlet end of the extract liquid storage ring 6 is provided with a first delivery pipe 18, and the inlet end of the extractable liquid storage ring 5 is provided with a second delivery pipe 17. When this application is used, the extract liquid used in the hydrometallurgical process can be delivered to the extract liquid storage ring 6 through the first delivery pipe 18, and the extractable liquid can be delivered to the extractable liquid storage ring 5 through the second delivery pipe 17.

[0019] The inner wall of the extractable liquid storage ring 5 is uniformly provided with holes. The top of the extractable liquid flow channel 20 and the top of the extractable liquid flow channel 19 are both inlaid with connecting mesh plates 22. The inner walls of the extractable liquid storage ring 5 and the extractable liquid storage ring 6 are provided with holes adapted to the connecting mesh plates 22. Through the holes and the connecting mesh plates 22, the inner cavity of the extractable liquid storage ring 5 is in a state of communication with the extractable liquid flow channel 20. The extractable liquid in the extractable liquid storage ring 5 can enter the extractable liquid flow channel 20 through the holes and the connecting mesh plates 22. The extractable liquid in the extractable liquid storage ring 6 can enter the extractable liquid flow channel 19 through the holes provided on it and the connecting mesh plates 22 adapted to the extractable liquid flow channel 19, realizing the communication between the inner cavity of the extractable liquid storage ring 6 and the inner cavity of the extractable liquid flow channel 19.

[0020] The outer ring of the stirring rod 4 is movably fitted with several stirring blade groups. The stirring blade groups are connected to the rotating block 13 through the first electric telescopic rod 15. Under the action of the first electric telescopic rod 15, the position of the stirring blade groups can be changed. The stirring blade groups include stirring blades 16. Several stirring blades 16 in the stirring blade groups are equidistantly distributed in a circular pattern. The stirring blades 16 in two adjacent stirring blade groups are staggered, which improves the mixing uniformity of the feeding and stirring structure.

[0021] The stirring blade 16 has a hollow structure, and drainage holes 24 are evenly arranged on both sides of the inner cavity of the stirring blade 16. Both the extract channel 19 and the extracted liquid channel 20 have outlet holes 21 on their side walls. The outlet holes 21 are adapted to the inlet end of the inner cavity of the stirring blade 16. When the outlet holes 21 and the inlet end of the stirring blade 16 are aligned, the liquid phase can enter the stirring blade 16 and be discharged through the drainage holes 24. Furthermore, the liquids sprayed from two adjacent stirring blades 16 in the stirring blade assembly are the extract and the extracted liquid, respectively. As described above, in use, during the feeding and initial mixing stages, the extract and the extracted liquid are transported to the hollow cavity of the corresponding stirring blade 16 through independent channels, and the liquid phase is directionally and uniformly sprayed into the extraction reactor in the form of tiny droplets. This increases the contact area and distribution uniformity of the two phases. Moreover, the two phases undergo instantaneous contact and shear dispersion upon meeting, avoiding the efficiency loss caused by the initial overall mixing and dispersion of the two phases in traditional processes. Meanwhile, the injected liquid phase has initial kinetic energy, which creates turbulent disturbances in the reactor, accelerates the secondary breakup and uniform distribution of the droplets, and further improves the speed of uniform mixing of the two phases.

[0022] The inner cavity of the stirring blade 16 is connected to a positioning tube 23 via a second electric telescopic rod 25. The positioning tube 23 is compatible with both the liquid outlet 21 and the liquid inlet of the stirring blade 16. When the liquid outlet 21 is aligned with the liquid inlet of the stirring blade 16, the controller of this application controls the second electric telescopic rod 25 to move. The second electric telescopic rod 25 drives the positioning tube 23 to move until the positioning tube 23 is inserted into the liquid outlet 21, ensuring the smooth and stable flow of the liquid phase transmission channel. Furthermore, when the stirring rod 4 rotates, it can drive the stirring blade assembly to rotate stably.

[0023] A fixing ring 9 is fixedly connected to the top of the inner cylinder 8, and a connecting plate 10 is movably connected to the top of the inner cavity of the inner cylinder 8. The connecting plate 10 is movably sleeved on the outer ring of the rotating block 13. The connecting plate 10 is connected to the fixing ring 9 through a spring 11. Insert rods 12 are evenly arranged on the top of the connecting plate 10, and insert plates 14 that are adapted to the insert rods 12 are evenly connected to the outer side wall of the bottom end of the rotating block 13. During the feeding and mixing stage, under the action of the spring 11's rebound force, the insert rod 12 is located below the insert plate 14. When the inner cylinder 8 needs to be rotated before discharge, the stirring blade 16 can move upward under the action of the first electric telescopic rod 15. When the stirring blade 16 contacts the bottom of the connecting plate 10, the continued upward movement of the stirring blade 16 can drive the connecting plate 10 to move upward until the insert rod 12 is inserted into the inner cavity of the insert plate 14. At this time, the rotation of the rotating block 13 can drive the inner cylinder 8 to rotate through the insert plate 14, the insert rod 12 and the connecting plate 10. Under the action of centrifugal force, the excessively fine droplets in the liquid phase can collide and coalesce to form larger droplet clusters, effectively suppressing the stability of the emulsion and facilitating the subsequent stratification of the liquid phase. At this time, the stirring blade 16 can be located at the top of the inner cavity of the inner cylinder 8 to avoid the stirring blade 16 affecting the centrifugal stratification of the liquid phase.

[0024] In use, the controller of this application first controls the feeding and stirring structure to complete at least one complete rotation cycle (i.e., an integer multiple of 360° rotation of the stirring blade assembly around the axis). When the rotation cycle ends and the feeding and stirring structure stops rotating, the system ensures that the inner cavity of the insert plate 14 and the insert rod 12 are strictly aligned through a precise position control mechanism.

[0025] All electrical components involved in this application are existing technologies. Those skilled in the art can select appropriate models of electrical components according to their needs. No restrictions or elaborations are made here. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies are connected by wires. According to the actual situation, appropriate controllers are selected to meet control requirements. For specific connections and control sequences, please refer to the description below. The electrical connections between each electrical component are completed in the order of their operation. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0026] In summary: When this hydrometallurgical extraction reactor is in use, under the action of the first electric telescopic rod 15, the stirring blade 16 and the corresponding liquid outlet 21 are aligned, and under the action of the second electric telescopic rod 25, the positioning tube 23 is inserted into the liquid outlet 21, realizing a stable connection between the stirring blade 16 and the stirring rod 4; the extractant used in the hydrometallurgical process can be transported to the extractant storage ring 6 through the first conveying pipe 18, and the extractant in the extractant storage ring 6 can enter the extractant flow channel 19 through the holes provided on it and the connecting mesh plate 22 adapted to the extractant flow channel 19, and the extractant in the extractant flow channel 19 enters the corresponding stirring blade through the liquid outlet 21 provided on it. The liquid to be extracted is uniformly discharged into the inner cavity of the inner cylinder 8 through the drain holes 24 on the stirring blade 16. The liquid to be extracted can be transported to the liquid storage ring 5 through the second conveying pipe 17. The liquid to be extracted in the liquid storage ring 5 enters the liquid flow channel 20 through the holes provided on it and the connecting mesh plate 22 adapted to the liquid flow channel 20. The liquid to be extracted in the liquid flow channel 20 enters the inner cavity of the corresponding stirring blade 16 through the liquid outlet hole 21 provided on it, and is sprayed into the inner cavity of the inner cylinder 8 through the drain holes 24 on the stirring blade 16. When the two phases meet, instantaneous contact and shear dispersion occur, avoiding the efficiency loss caused by the two phases first being mixed as a whole and then dispersed in the traditional process. At the same time, the liquid phase sprayed by the hollow structure has initial kinetic energy, forming turbulent disturbance in the reactor, accelerating the secondary breakup and uniform distribution of the droplets, and further improving the speed of uniform mixing of the two phases.

[0027] Before drainage is required, the controller of this application controls the second electric telescopic rod 25 to reset, disconnecting the connection between the stirring blade 16 and the stirring rod 4. The first electric telescopic rod 15 resets and drives the stirring blade 16 to move upward. When the stirring blade 16 at the top contacts the bottom of the connecting plate 10, the continued upward movement of the stirring blade 16 can drive the connecting plate 10 to move upward. The connecting plate 10 drives the insertion rod 12 to move upward until the insertion rod 12 is inserted into the inner cavity of the insertion plate 14. At this time, the rotation of the rotating block 13 can drive the inner cylinder 8 to rotate through the insertion plate 14, the insertion rod 12 and the connecting plate 10. Under the action of centrifugal force, the excessively fine droplets in the liquid phase can collide and coalesce to form larger droplet clusters, effectively suppressing the stability of the emulsion and facilitating the subsequent stratification of the liquid phase. The centrifuged liquid phase is discharged through the electric drainage valve 3.

[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each structure adopt conventional technical means such as bolt connection in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology. The materials and specifications of each component can be selected according to the requirements and are not limited here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydrometallurgical extraction reactor, comprising an extraction reactor body (1) for hydrometallurgical processes and a sealing cap (2) adapted to the extraction reactor body (1), characterized in that: The sealing cap (2) is provided with a feeding and stirring structure in the middle. The feeding and stirring structure includes a rotating block (13) movably connected to the middle of the sealing cap (2). A stirring rod (4) is connected to the middle of the rotating block (13). The inner cavity of the stirring rod (4) is provided with an extract flow channel (19) and an extractable flow channel (20). The outer ring at the top of the stirring rod (4) is fitted with an extract storage ring (6) communicating with the inner cavity of the extract flow channel (19) and an extractable storage ring (5) communicating with the inner cavity of the extractable flow channel (20). The outer ring of the stirring rod (4) is movably fitted with several stirring blade groups. The stirring blade groups are connected to the rotating block (13) through the first electric telescopic rod (15). The stirring blade group includes stirring blades (16). The stirring blades (16) have a hollow structure. Drainage holes (24) are evenly arranged on both sides of the inner cavity of the stirring blades (16). The side walls of both the extract flow channel (19) and the extracted liquid flow channel (20) are provided with liquid outlet holes (21). The liquid outlet holes (21) are adapted to the liquid inlet end of the inner cavity of the stirring blades (16).

2. The hydrometallurgical extraction reactor according to claim 1, characterized in that: The inner cavity of the extraction reactor body (1) is movably connected to an inner cylinder (8). An electric drain valve (3) is provided in the middle of the bottom of the inner cylinder (8). The outlet end of the electric drain valve (3) extends to the outside of the extraction reactor body (1). The electric drain valve (3) is movably connected to the extraction reactor body (1).

3. The hydrometallurgical extraction reactor according to claim 2, characterized in that: A fixing ring (9) is fixedly connected to the top of the inner cylinder (8), and a connecting plate (10) is movably connected to the top of the inner cavity of the inner cylinder (8). The connecting plate (10) is movably sleeved on the outer ring of the rotating block (13). The connecting plate (10) is connected to the fixing ring (9) through a spring (11). Insert rods (12) are evenly arranged on the top of the connecting plate (10), and insert plates (14) that are adapted to the insert rods (12) are evenly connected to the outer side wall of the bottom end of the rotating block (13).

4. The hydrometallurgical extraction reactor according to claim 1, characterized in that: The inner wall of the extractable liquid storage ring (5) is uniformly provided with holes, and the top of the extractable liquid flow channel (20) and the top of the extractable liquid flow channel (19) are both inlaid with connecting mesh plates (22). The inner wall of the extractable liquid storage ring (5) and the inner wall of the extractable liquid storage ring (6) are both provided with holes that are adapted to the connecting mesh plates (22).

5. The hydrometallurgical extraction reactor according to claim 1, characterized in that: The inlet end of the extract storage ring (6) is provided with a first delivery pipe (18), and the inlet end of the extract storage ring (5) is provided with a second delivery pipe (17).

6. The hydrometallurgical extraction reactor according to claim 1, characterized in that: The inner cavity of the stirring blade (16) is connected to a positioning tube (23) via a second electric telescopic rod (25). The positioning tube (23) is compatible with both the liquid outlet (21) and the liquid inlet of the stirring blade (16).

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