Continuous leaching device
By designing a continuous leaching device, using multi-stage stirring and real-time monitoring technology, the problems of poor stirring and long leaching time in large-scale leaching devices are solved, and the full leaching of ore slurry and the improvement of production efficiency are achieved.
Patent Information
- Application Number
- CN202422302739.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-20
AI Technical Summary
In the prior art, the leaching device during the treatment of large ore amounts has problems such as poor stirring, long leaching time, and unstable slurry concentration, resulting in poor leaching effect.
A continuous leaching device is designed, including an initial stirring device, a multi-stage stirring device, a tailings collection device, a water replenisher and a gas transmission device. Through multi-stage stirring and real-time monitoring of the slurry weight, ensuring full stirring and leaching uniformity. Quantitative control is used for use with heating wire and weighing device to achieve continuous leaching.
The slurry is fully stirred and leaching, which shortens the leaching time, improves the leaching effect, saves manpower and material resources, and reduces production costs.
Smart Images
Figure CN223127316U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical fields of hydrometallurgy and mixed dissolution, and in particular to a continuous leaching device. Background Art
[0002] In the laboratory's small-scale leaching test, the ore volume is generally 1-5kg per group. However, in the expanded test, the ore volume is 150-300kg or more, and the leaching time is more than 48-72h. This type of test has the characteristics of large ore volume and long leaching time. If a small leaching device is used, it cannot handle such a large amount of ore, and it wastes human resources. Repeated dosing and multiple groups of leaching equipment are difficult to operate. Therefore, in order to carry out leaching operations on such a large amount of ore, if it is leached at one time, larger equipment is required, and the one-time dosing amount is also huge. At the same time, the stirring of large equipment also has the problem of poor stirring. Secondly, during the long leaching process, or because it needs to maintain a certain leaching temperature, water will inevitably be lost to a certain extent, which causes the problem of unstable slurry concentration during the leaching process, affecting the stability of leaching indicators and parameters.
[0003] In view of this, it is necessary to design a continuous leaching device to solve the above problems. Utility Model Content
[0004] In view of the technical problems existing in the background technology, the present application provides a continuous leaching device, which performs multi-stage stirring on the slurry to ensure sufficient stirring, extend the stirring time, and continuously leach the slurry to ensure a good leaching effect.
[0005] The embodiment of the present application provides a continuous leaching device, comprising: an initial stirring device, a multi-stage stirring device, a tailings collecting device connected to the multi-stage stirring device, a water replenisher for providing water to the initial stirring device and the multi-stage stirring device, and a gas supply device for providing gas to the initial stirring device and the multi-stage stirring device; wherein the ore pulp is processed in the initial stirring device and then flows into the multi-stage stirring device;
[0006] The initial stirring device and the multi-stage stirring device both include a stirring barrel, a stirring paddle arranged on the stirring barrel, and a weight sensor connected to the bottom end of the stirring barrel.
[0007] In the technical solution of the embodiment of the present application, by setting up several stirring systems in the continuous leaching device, the slurry is fully stirred, so that the slurry is continuously leached to achieve a good leaching effect. In addition, a weight sensor is set on the stirring barrels corresponding to the several stirring systems to monitor the weight of the slurry in the stirring system in real time to ensure the water content in the system.
[0008] In some embodiments, both the initial stirring device and the multi-stage stirring device further include heating wires evenly arranged at the bottom end of the stirring barrel.
[0009] In this embodiment, by evenly arranging heating wires at the bottom end of the stirring barrel, it is ensured that the stirring device can heat while stirring the pulp.
[0010] In some embodiments, the initial stirring device further includes a sampling port arranged at the bottom of the stirring barrel in the initial stirring device, a weighing device connected to the sampling port through a sampling pipe; a first electronic valve is arranged on the sampling port;
[0011] The weighing device includes a container tank connected to the initial stirring device, a float arranged in the container tank, and a sensor for receiving the state of the float; a second electronic valve is arranged at the outlet at the bottom end of the container tank.
[0012] In this embodiment, by arranging a weighing device between the initial stirring device and the multi-stage stirring device, and receiving the state of the float with the sensor, the pulp in the initial stirring device can flow into the multi-stage stirring device quantitatively, and the pulp in the initial stirring device is subjected to pre-concentration stabilization treatment in the weighing device before entering the multi-stage stirring device; in addition, since the liquid level in the stirring barrel of the initial stirring device drops with ore discharge and the bottom pressure drops, this volume method can achieve quantitative stability, quantitative ore discharge, water volume stability, and pulp concentration stability; if the weight or time control method is used, the concentration and quantity of the discharged pulp are both unstable; thus, the uniformity of the entire pulp during leaching can be ensured.
[0013] In some embodiments, the multi-stage stirring device includes a first-stage stirring device, a second-stage stirring device,..., an Nth-stage stirring device; the pulp in the weighing device flows into the stirring barrel of the first-stage stirring device.
[0014] In this embodiment, by arranging several stirring devices, the pulp is stirred multiple times and continuously leached, fully ensuring the sufficiency of pulp leaching; moreover, compared with the large-volume leaching devices used in traditional industries, since the pulp volume is leached step by step, the leaching time can be significantly shortened.
[0015] In some embodiments, overflow ports are arranged on the stirring barrels of the multi-stage stirring device; the overflow port on the stirring barrel of the (N - 1)th-stage stirring device is located above the stirring barrel of the Nth-stage stirring device; the overflow port of the Nth-stage stirring device is connected to the tailing collection device.
[0016] In this embodiment, by placing the overflow port on the stirring barrel of the (N - 1)-th stage stirring device above the stirring barrel of the N-th stage stirring device, after the pulp is stirred and leached in the previous stage stirring device, the pulp overflowing from the stirring barrel directly flows to the next stage stirring device for continuous processing without additional manual or instrument control, saving production costs.
[0017] In some embodiments, the tailing residue collection device includes a tailing residue sedimentation tank whose water inlet end is connected to the water outlet end of the multi-stage stirring device through a first water pipe, a precious liquid tank placed below the tailing residue sedimentation tank, and a water pump connected to the precious liquid tank; a filter screen is arranged in the tailing residue sedimentation tank; the bottom of the tailing residue sedimentation tank is provided with a water outlet end.
[0018] In this embodiment, by arranging a precious liquid tank communicated with the tailing residue sedimentation tank below the tailing residue sedimentation tank and arranging a filter screen in the tailing residue sedimentation tank, after the tailing residues in the tailing liquid are filtered out, the precious metals in the remaining tailing liquid are recycled.
[0019] In some embodiments, filter paper is laid on the filter screen.
[0020] In this embodiment, by laying filter paper on the filter screen, it is ensured that the tailing residues in the tailing liquid are fully filtered out, making the filtration of the tailing liquid more thorough.
[0021] In some embodiments, the water replenishing device includes a water tank, a plurality of water valves arranged on the water tank, and a second water pipe with one end connected to the water valve and the other end connected to the stirring barrel.
[0022] In this embodiment, by arranging a plurality of water valves on the water tank and connecting each water valve to the stirring barrel on each stirring device through each second water pipe, when water loss occurs due to heating during the stirring and leaching process or water shortage occurs during the continuous reaction process, the water tank can supply water to the corresponding stirring barrel in real time and separately to ensure the process progress.
[0023] In some embodiments, the gas conveying device includes an air pipe connected to the bottom end of the stirring barrel and an air pump connected to one end of the air pipe.
[0024] In this embodiment, by connecting an air pipe to the bottom end of the stirring barrel, when stirring and leaching the pulp, a gas source can be provided in real time to make the whole reaction process more complete.
[0025] In some embodiments, a continuous leaching device further includes: a control cabinet for controlling the execution functions of the initial stirring device, the multi-stage stirring device, the tailing residue collection device, the water replenishing device, and the gas conveying device.
[0026] In this embodiment, by providing a control cabinet for controlling the execution functions of the initial stirring device, multi-stage stirring device, tail slag collection device, water replenisher, and gas transmission device, a large amount of manpower and material resources can be saved, automated control can be achieved, and the production efficiency of the enterprise can be significantly improved.
[0027] The above description is only an overview of the technical solution of the present application. In order to be able to more clearly understand the technical means of the present application, it can be implemented in accordance with the content of the specification. And in order to make the above and other purposes, features, and advantages of the present application more obvious and understandable, the following specifically illustrates the specific embodiments of the present application. Brief Description of the Drawings
[0028] In order to more clearly illustrate the technical solution of the present application, the drawings used in the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0029] Figure 1 It is a schematic structural diagram of the continuous leaching device in the embodiment of the present application;
[0030] Figure 2 It is a schematic structural diagram of the weighing device and a motion state diagram of the weighing device in the embodiment of the present application;
[0031] Description of the Reference Numerals in the Drawings:
[0032] 1. Control cabinet; 21. Air pump; 22. Air pipe; 31. Stirring tank; 32. Stirring paddle; 33. Heating wire; 34. Weight sensor; 35. Sampling port; 351. First electronic valve; 36. Sampling pipe; 37. Weighing device; 371. Container tank; 3711. Second electronic valve; 372. Inductor; 373. Floating buoy; 41. First-stage stirring device; 42. Second-stage stirring device; 43. Third-stage stirring device; 44. Fourth-stage stirring device; 451. Overflow port; 51. Water tank; 52. Water valve; 53. Second water pipe; 61. Tail slag sedimentation tank; 611. Filter screen; 62. Precious liquid tank; 63. Water pump; 64. First water pipe. Detailed Embodiments
[0033] The embodiments of the technical solution of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.
[0035] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, "a plurality of" means more than two, unless otherwise specifically and clearly defined.
[0036] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0037] In the description of the embodiments of this application, the term "and / or" is merely a description of the associated relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.
[0038] In the description of the embodiments of this application, the term "a plurality of" refers to more than two (including two). Similarly, "a plurality of groups" refers to more than two groups (including two groups), and "a plurality of pieces" refers to more than two pieces (including two pieces).
[0039] In the description of the embodiments of this application, the orientation or positional relationship indicated by technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of this application.
[0040] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0041] In the prior art, the device for treating pulp leaching is large in volume. If only one leaching is carried out, it is easy to cause the problem of insufficient pulp leaching. Therefore, how to rationally design the equipment to efficiently stir and leach the pulp is particularly important.
[0042] To solve the above technical problems, the present application provides a continuous leaching device. Among them, by setting an initial stirring device, a multi-stage stirring device, a tail slag collection device connected to the multi-stage stirring device, a water replenisher for supplying water to the initial stirring device and the multi-stage stirring device, and a gas transmission device for supplying gas to the initial stirring device and the multi-stage stirring device, the pulp is continuously leached to ensure good leaching technical effects.
[0043] For the convenience of description, the following embodiments will be described by taking a continuous leaching device according to an embodiment of the present application as an example.
[0044] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of the continuous leaching device provided for the embodiments of the present application, including: an initial stirring device, a multi-stage stirring device, a tail slag collection device connected to the multi-stage stirring device, a water replenisher for supplying water to the initial stirring device and the multi-stage stirring device, and a gas transmission device for supplying gas to the initial stirring device and the multi-stage stirring device; wherein, after the pulp is treated in the initial stirring device, it then flows into the multi-stage stirring device;
[0045] Both the initial stirring device and the multi-stage stirring device include a stirring barrel 31, a stirring paddle 32 disposed on the stirring barrel 31, and a weight sensor 34 connected to the bottom end of the stirring barrel 31. The pulp is first pre-stirred in the stirring barrel 31 of the initial stirring device, and then the pretreated pulp is fed into the multi-stage stirring device in batches for treatment. This can avoid the problem of uneven leaching of a large amount of pulp at the same time, and then can fully stir the pulp to enable continuous leaching of the pulp to achieve a good leaching effect. In addition, a weight sensor 34 is disposed on the stirring barrel 31 corresponding to the initial stirring device and the multi-stage stirring device, which can monitor the change in the weight of the pulp in the stirring device in real time. When the water in the stirring barrel 31 evaporates due to temperature rise and at the same time it is detected that the volume in the stirring barrel 31 becomes smaller (excluding the case of pulp reduction), the water replenisher will provide water in time to ensure sufficient water content in the system.
[0046] In some embodiments of the present application, the volume of the stirring barrel 31 in the initial stirring device is n times the volume of each stirring barrel 31 in the multi-stage stirring device. The volumes of the stirring barrels 31 in the multi-stage stirring device are the same, and n is the number of stirring barrels 31 in the multi-stage stirring device.
[0047] Further, in the embodiments of the present application, as Figure 1 shown, both the initial stirring device and the multi-stage stirring device further include heating wires 33 uniformly disposed at the bottom end of the stirring barrel 31. This ensures that the stirring device can heat while stirring the pulp.
[0048] Further, in the embodiments of the present application, as Figures 1 to 2 shown, the initial stirring device further includes a sampling port 35 disposed at the bottom of the stirring barrel 31 in the initial stirring device, and a weighing device 37 connected to the sampling port 35 through a sampling pipe 36. A first electronic valve 351 is disposed on the sampling port 35.
[0049] The weighing device 37 includes a container tank 371 connected to the initial stirring device, a float 373 disposed within the container tank 371, and a sensor 372 (the sensor 372 is located above the float 373) for receiving the state of the float 373; an outlet at the bottom end of the container tank 371 is provided with a second electronic valve 3711; when the pulp in the initial stirring device enters the container tank 371 through the sampling pipe 36 and the pulp liquid level reaches a certain height, when the buoyancy force received by the float 373 is consistent with the self-gravity of the float 373, the unfixed end of the float 373 rotates upward. At this time, the float 373 touches the sensor 372. After the sensor 372 receives the signal, the second electronic valve 3711 is opened, and at the same time, the first electronic valve 351 is closed. At this time, the pulp flows into the multi-stage stirring device for re-stirring and leaching treatment; in this way, by means of the sensor 372 receiving the state of the float 373, the pulp in the initial stirring device can flow into the multi-stage stirring device quantitatively, and the pulp in the initial stirring device is subjected to pre-concentration stabilization treatment in the weighing device 37 before entering the multi-stage stirring device; in addition, since the liquid level in the stirring barrel of the initial stirring device drops with the ore discharge and the bottom pressure drops, this volume method can ensure quantitative stability, quantitative ore discharge, water volume stability, and pulp concentration stability; if the weight or time control method is used, the concentration and quantity of the discharged pulp are both unstable; in this way, the uniformity of the entire pulp during leaching can be ensured.
[0050] Further, in the embodiment of the present application, as Figure 1 shown, the multi-stage stirring device includes a first-stage stirring device 41, a second-stage stirring device 42, a third-stage stirring device 43, and a fourth-stage stirring device 44; the pulp in the weighing device 37 flows into the stirring barrel 31 of the first-stage stirring device 41; the pulp is sequentially subjected to stirring and leaching treatment in multiple stirring barrels 31. This continuous leaching method fully ensures the sufficiency of pulp leaching; moreover, compared with the large-volume leaching device used in traditional industries, since the pulp volume is leached step by step, the leaching time can be significantly shortened.
[0051] Further, in the embodiment of the present application, as Figure 1 shown, overflow ports 451 are provided on the stirring barrels 31 of the multi-stage stirring device; the overflow port 451 on the stirring barrel 31 of the (N - 1)-th stage stirring device is located above the stirring barrel 31 of the N-th stage stirring device; the overflow port 451 of the N-th stage stirring device is connected to the tailing collection device; when the pulp completes the stirring and leaching processes in the previous-stage stirring device and the pulp overflowing from the stirring barrel 31 directly flows to the next-stage stirring device for continuous processing, no additional manual or instrument control is required, saving production costs.
[0052] Further, in the embodiment of the present application, as Figure 1As shown, the tailing residue collection device includes a tailing residue settling tank 61 whose water inlet end is connected to the water outlet end of the multi-stage stirring device through a water pipe 64, a precious liquid tank 62 placed below the tailing residue settling tank 61, and a water pump 63 connected to the precious liquid tank 62; a filter screen 611 is arranged in the tailing residue settling tank 61; the bottom of the tailing residue settling tank 61 is provided with a water outlet end; in this way, after the tailing residues in the tailing liquid are filtered out, the precious metals in the remaining tailing liquid are pumped by the water pump 63 for recycling.
[0053] Further, in the embodiment of the present application, as Figure 1 shown, filter paper is laid on the filter screen 611; in this way, it is ensured that the tailing residues in the tailing liquid are fully filtered out, making the filtration of the tailing liquid more thorough.
[0054] Further, in the embodiment of the present application, as Figure 1 shown, the water replenishing device includes a water tank 51, a plurality of water valves 52 arranged on the water tank 51, and a water pipe 53 with one end connected to the water valve 52 and the other end connected to the stirring barrel 31; in this way, when the water loss due to heating during the stirring and leaching process or the water shortage caused by the continuous reaction process occurs, the water tank 51 can supply water to the corresponding stirring barrel 31 in real time and separately, ensuring the technological process.
[0055] Further, in the embodiment of the present application, as Figure 1 shown, the gas transmission device includes an air pipe 22 connected to the bottom end of the stirring barrel 31 and an air pump 21 connected to one end of the air pipe 22; when stirring and leaching the pulp, a gas source can be provided in real time to make the components of the pulp uniform.
[0056] Further, in the embodiment of the present application, as Figure 1 shown, the provided continuous leaching device further includes: a control cabinet 1 for controlling the execution functions of the initial stirring device, the multi-stage stirring device, the tailing residue collection device, the water replenishing device, and the gas transmission device; the control cabinet 1 can save a large amount of manpower and material resources, realize intelligent control, and greatly improve the production efficiency of the enterprise by controlling the rotation speed of each stirring paddle 32, the air injection volume of the air pump 21, the temperature of the heating wire 33 under the stirring tank, the time for the solenoid valves (the first solenoid valve 351 and the second solenoid valve 3711) to release the pulp, etc.
[0057] Please refer to Figures 1 to 2 together. According to one or more embodiments of the present application, the continuous leaching device provided by the present application forms a complete continuous leaching device by the control cabinet 1, the initial stirring device, the multi-stage stirring device, the tailing residue collection device, the water replenishing device, and the gas transmission device; the pulp is stirred multiple times sufficiently to perform continuous leaching on the pulp to achieve a good leaching effect.
[0058] A multi-stage stirring device connected to the initial stirring device, a tail slag collection device connected to the multi-stage stirring device, a water replenisher for supplying water to the initial stirring device and the multi-stage stirring device, and a gas transmission device for supplying gas to the initial stirring device and the multi-stage stirring device are provided. Among them, after the pulp is processed in the initial stirring device, it then flows into the multi-stage stirring device. Both the initial stirring device and the multi-stage stirring device are provided with a stirring barrel 31, a stirring paddle 32, and a weight sensor 34. In this way, the pulp is stirred multiple times and continuously leached, fully ensuring the sufficiency of pulp leaching. Moreover, compared with the large-volume leaching devices used in traditional industries, since the pulp volume is leached step by step, the leaching time can be significantly shortened.
[0059] The entire device can turn on different devices at different time periods according to different working conditions. In addition, it has a high degree of automation, is easy to operate, runs stably, is safe and reliable, energy-saving, environmentally friendly, effectively reduces the labor intensity of workers and production costs, and has good energy-saving and emission-reduction effects.
[0060] It should be noted that this application is not limited to the above-mentioned embodiments. The above-mentioned embodiments are only examples, and embodiments with the same composition and the same effect as the technical idea within the technical solution scope of this application are all included in the technical scope of this application. In addition, within the scope of not departing from the main idea of this application, various deformations that those skilled in the art can think of imposed on the embodiments, and other ways constructed by combining some constituent elements in the embodiments are also included in the scope of this application.
Claims
1. A continuous leaching device, characterized in that, Including: An initial stirring device, a multi-stage stirring device, a tail slag collection device connected to the multi-stage stirring device, a water replenisher for supplying water to the initial stirring device and the multi-stage stirring device, and a gas transmission device for supplying gas to the initial stirring device and the multi-stage stirring device; wherein, after the pulp is processed in the initial stirring device, it then flows into the multi-stage stirring device. Both the initial stirring device and the multi-stage stirring device include a stirring barrel, stirring paddles provided on the stirring barrel, and a weight sensor connected to the bottom end of the stirring barrel.
2. The continuous leaching device according to claim 1, characterized in that, Both the initial stirring device and the multi-stage stirring device further include heating wires uniformly arranged at the bottom end of the stirring barrel.
3. The continuous leaching device according to claim 1, characterized in that, The initial stirring device further includes a sampling port provided at the bottom of the stirring barrel in the initial stirring device, and a weighing device connected to the sampling port through a sampling pipe; a first electronic valve is provided on the sampling port. The weighing device includes a container tank connected to the initial stirring device, a float provided in the container tank, and a sensor for receiving the state of the float; an outlet at the bottom end of the container tank is provided with a second electronic valve.
4. The continuous leaching device according to claim 3, characterized in that, The multi-stage stirring device includes a first-stage stirring device, a second-stage stirring device,..., an Nth-stage stirring device; the pulp in the weighing device flows into the stirring barrel of the first-stage stirring device.
5. The continuous leaching device according to claim 4, wherein Overflow ports are provided on the stirring barrels of the multi-stage stirring device; the overflow port on the stirring barrel of the (N - 1)th-stage stirring device is located above the stirring barrel of the Nth-stage stirring device; the overflow port of the Nth-stage stirring device is connected to the tail slag collection device.
6. The continuous leaching device according to claim 1, wherein The tail slag collection device includes a tail slag sedimentation tank whose water inlet end is connected to the water outlet end of the multi-stage stirring device through a water pipe 1, a precious liquid tank placed below the tail slag sedimentation tank, and a water pump connected to the precious liquid tank; a filter screen is provided in the tail slag sedimentation tank; the bottom of the tail slag sedimentation tank is provided with a water outlet end.
7. The continuous leaching device according to claim 6, characterized in that, Filter paper is laid on the filter screen.
8. The continuous leaching device according to claim 1, characterized in that, The water replenisher includes a water tank, several water valves provided on the water tank, and a water pipe 2 with one end connected to the water valve and the other end connected to the stirring barrel.
9. The continuous leaching device according to claim 1, characterized in that, The gas transmission device includes an air pipe connected to the bottom end of the stirring barrel, and an air pump connected to one end of the air pipe.
10. The continuous leaching device according to claim 1, wherein, Also including: A control cabinet for controlling the execution functions of the initial stirring device, the multi-stage stirring device, the tail slag collection device, the water replenisher, and the gas transmission device.