An on-line sensing device for electrolyte temperature of a hydrometallurgical electrolytic cell

Abstract

The utility model discloses a kind of for hydrometallurgy electrolytic cell electrolyte temperature on-line sensing device in the technical field of hydrometallurgy, including sensing structure and fixed structure, the sensing structure includes inner tube, outer tube and fiber-optic sensor, the outer tube sleeve is connected on inner tube, the outer wall upper end of inner tube is fixedly connected with limit stopper;The top of outer tube is threadedly connected with limit cap, the limit cap is movably connected with inner tube, the limit stopper is located at the top of outer tube, and located in the inside of limit cap;The bottom of inner tube is provided with winding part, one end of the fiber-optic sensor passes through inner tube and is wound on winding part;The outer wall of outer tube is uniformly provided with through-hole one. The present application can be convenient for electrolyte temperature on-line sensing and monitoring, and can also effectively protect the fiber, avoid being scratched and damaged by knocking, so as to avoid affecting monitoring sensitivity.

Description

Technical Field

[0001] This utility model relates to the field of hydrometallurgical technology, specifically to an online sensing device for the electrolyte temperature of a hydrometallurgical electrolytic cell. Background Technology

[0002] In hydrometallurgy, measuring the electrolyte temperature and electrode voltage is crucial for optimizing process efficiency, ensuring product quality, and reducing energy consumption. Electrolyte temperature is a key process parameter, directly affecting reaction rate, current efficiency, metal deposition quality, and energy consumption. In traditional processes, electrolyte temperature control relies on manual experience or simple equipment, which is prone to efficiency reduction or equipment corrosion due to temperature fluctuations. Furthermore, the corrosive nature of the strong acid in the electrolyte, severe crystallization, and the high electrolyte temperature mean that currently available temperature measuring equipment cannot provide long-term, effective temperature monitoring.

[0003] Current research and development has further explored the use of fiber optic sensors in electrolyte temperature monitoring systems for online temperature sensing and monitoring. However, current methods involve directly exposing the fiber optic cables to the electrolyte without any protective measures, making them susceptible to scratches and damage from impacts, thus affecting monitoring sensitivity. Therefore, we propose an online electrolyte temperature sensing device for hydrometallurgical electrolytic cells. Utility Model Content

[0004] The purpose of this invention is to overcome the aforementioned problems in the prior art and provide an online sensing device for electrolyte temperature in hydrometallurgical electrolytic cells. This device facilitates online sensing and monitoring of electrolyte temperature while also providing effective safety protection for the optical fiber, preventing it from being scratched or damaged by impacts, thereby avoiding any impact on monitoring sensitivity.

[0005] To solve the above technical problems, this utility model provides an online sensing device for the electrolyte temperature of a wet metallurgical electrolytic cell, including a sensing structure and a fixing structure. The sensing structure includes an inner tube, an outer tube, and an optical fiber sensor. The outer tube is sleeved on the inner tube, and a limit block is fixedly connected to the upper end of the outer wall of the inner tube.

[0006] The top end of the outer tube is threaded with a limit cap, which is movably sleeved with the inner tube. The limit stop is located at the top of the outer tube and inside the limit cap.

[0007] The bottom end of the inner tube is provided with a winding part, and one end of the optical fiber sensor passes through the inner tube and is wound around the winding part; the outer wall of the outer tube is uniformly provided with through holes.

[0008] Preferably, two sets of baffles are fixedly connected to the bottom of the outer wall of the inner tube, and the winding part is located between the two sets of baffles. One set of baffles has a fixed through hole that matches the end of the optical fiber sensor, and the other set of baffles has an avoidance notch that matches the winding of the optical fiber sensor, and the avoidance notch extends to the bottom of the inner tube.

[0009] Based on the above technical features, it is easy to wind and fix one end of the fiber optic sensor in the winding part position area.

[0010] Preferably, a plug is provided at the bottom of the outer tube, the plug is interference-fitted with the outer tube, and the bottom of the plug is uniformly provided with two through holes.

[0011] Based on the above technical features, the bottom of the outer tube can be sealed while allowing the electrolyte to enter the outer tube.

[0012] Preferably, the fixing structure includes an inner vertical plate, a horizontal plate, an outer vertical plate, and a threaded rod, wherein the horizontal plate is located between the inner vertical plate and the outer vertical plate, and the inner vertical plate, the horizontal plate, and the outer vertical plate are an integral structure.

[0013] Based on the above technical features, it is convenient to use a fixed structure in conjunction with a sensing structure.

[0014] Preferably, the upper end of the side wall away from the horizontal plate of the inner vertical plate is fixedly connected with an elastic clamp that engages with the outer tube, and the bottom end of the side wall away from the horizontal plate of the inner vertical plate is fixedly connected with two support rods.

[0015] Based on the above technical features, it is easy to fix the sensing structure inside the electrolytic cell.

[0016] Preferably, the threaded rod is threaded with an internal threaded sleeve, which is fixedly installed on the outer vertical plate. One end of the threaded rod is fixedly connected to a hexagonal handle, and the other end of the threaded rod is rotatably connected to a limiting pressure plate. The limiting pressure plate is located between the inner vertical plate and the outer vertical plate, and is located below the horizontal plate.

[0017] Based on the above technical features, it is easy to install and fix the fixing structure on the edge of the electrolytic cell.

[0018] Preferably, the outer diameter of the limiting block is larger than the inner diameter of the outer tube.

[0019] Based on the above technical features, it is easy to block and support the inner tube at the top of the outer tube, so that the inner tube part remains at the top of the outer tube.

[0020] In summary, this utility model has at least one of the following beneficial effects:

[0021] This invention uses a fixing structure to fix the sensing structure to the edge of the electrolytic cell, and winds and fixes the fiber optic sensor to the winding part of the inner tube. The outer tube is sleeved on the inner tube to protect the fiber optic sensor. Then, the fiber optic sensor, along with the bottom of the outer tube and the inner tube, is immersed in the electrolyte. This allows for online sensing and monitoring of the electrolyte temperature while effectively protecting the fiber optic cable from scratches and impacts, thus avoiding any impact on the monitoring sensitivity. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure in use of this utility model. Figure 1 ;

[0023] Figure 2 This is a partial cross-sectional view of the sensing structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the inner tube structure of this utility model. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the inner tube structure of this utility model. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the structure in use of this utility model. Figure 2 ;

[0027] Figure 6 This is a schematic diagram of the online sensing device of this utility model installed on an electrolytic cell;

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1-Inner tube, 2-Outer tube, 201-Through hole one, 3-Fiber optic sensor, 4-Plug, 5-Limit cap, 6-Limit stop, 7-Baffle, 701-Fixed through hole, 702-Avoidance notch, 8-Winding part, 9-Fixed structure, 901-Horizontal plate, 902-Outer vertical plate, 903-Hexagonal handle, 904-Threaded rod, 905-Internal threaded sleeve, 906-Limit pressure plate, 907-Inner vertical plate, 908-Support rod, 909-Elastic clamp, 10-Electrolytic cell. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 The present invention will be described in further detail below.

[0031] One embodiment of this utility model is provided: see attached document. Figure 1 Appendix Figure 2 Appendix Figure 3 Appendix Figure 4 and attached Figure 6An online sensing device for electrolyte temperature in hydrometallurgical electrolytic cells includes a sensing structure and a fixing structure 9.

[0032] The sensing structure includes an inner tube 1, an outer tube 2, and an optical fiber sensor 3. The optical fiber sensor 3 uses optical fiber as the transmission medium, and its structure from the inside out is: 0.9mm tightly packed optical fiber, an aramid fiber layer, and an outer sheath of optical cable. The optical fiber sensor is resistant to electromagnetic interference, electrically insulating, corrosion resistant, and intrinsically safe; it is lightweight, small in size, and flexible; it performs linear distributed measurement, enabling long-distance, multi-point simultaneous online measurement, providing rich measurement information without measurement blind spots; it is easy to reuse and easy to form a network.

[0033] The outer tube 2 is sleeved on the inner tube 1. A limit block 6 is fixedly connected to the upper end of the outer wall of the inner tube 1. The outer diameter of the limit block 6 is larger than the inner diameter of the outer tube 2, which facilitates the blocking and support of the inner tube 1 at the top of the outer tube 2, so that the top end of the inner tube 1 remains at the top of the outer tube 2.

[0034] The top end of the outer tube 2 is threaded with a limit cap 5, which is movably sleeved with the inner tube 1. The limit stop 6 is located at the top of the outer tube 2 and inside the limit cap 5, and the inner tube 1 inserted in the outer tube 2 is fixed by the limit cap 5.

[0035] The bottom end of the inner tube 1 is provided with a winding part 8. One end of the fiber optic sensor 3 passes through the inner tube 1 and is wound around the winding part 8. The other end of the fiber optic sensor 3 is connected to an external electrolyte temperature monitoring and demodulator. The electrolyte temperature monitoring and demodulator can continuously obtain the measured temperature information along the sensor for several kilometers, greatly reducing the false alarm and missed alarm rates. At the same time, real-time monitoring is realized.

[0036] The outer wall of the outer tube 2 is uniformly provided with through holes 201 to facilitate the entry of electrolyte into the outer tube 2;

[0037] Two sets of baffles 7 are fixedly connected to the bottom of the outer wall of the inner tube 1. The winding part 8 is located between the two sets of baffles 7. One set of baffles 7 has a fixing through hole 701 that matches the end of the fiber optic sensor 3. After the fiber optic sensor 3 is wound on the winding part 8, its end is fixed by being fastened to the baffle 7 through the fixing through hole 701. The other set of baffles 7 has an avoidance notch 702 that matches the winding of the fiber optic sensor 3. The avoidance notch 702 extends to the bottom of the inner tube 1, which makes it easy for one end of the fiber optic sensor 3 to pass through the inner tube 1 and the avoidance notch 702 before being wound and fixed in the winding part 8.

[0038] A plug 4 is provided at the bottom of the outer tube 2. The plug 4 is press-fitted with the outer tube 2. The bottom of the plug 4 is evenly provided with two through holes, which can seal the bottom of the outer tube 2 while allowing the electrolyte to enter the outer tube 2.

[0039] See appendix Figure 1 Appendix Figure 5 and attached Figure 6 The fixed structure 9 includes an inner vertical plate 907, a horizontal plate 901, an outer vertical plate 902, and a threaded rod 904. The horizontal plate 901 is located between the inner vertical plate 907 and the outer vertical plate 902. The inner vertical plate 907, the horizontal plate 901, and the outer vertical plate 902 are an integrated structure. The integrated structure facilitates the use of the fixed structure 9 in conjunction with the sensing structure.

[0040] An elastic clamp 909 is fixedly connected to the upper end of the side wall away from the horizontal plate 901 of the inner vertical plate 907, which is engaged with the outer tube 2. Two support rods 908 are fixedly connected to the bottom end of the side wall away from the horizontal plate 901 of the inner vertical plate 907. They are fixed to the outside of the outer tube 2 by the elastic clamp 909, and the entire sensing structure is supported by the two support rods 908, which makes it easy to fix the sensing structure in the electrolytic cell 10.

[0041] A threaded rod 904 is threaded with an internal threaded sleeve 905, which is fixedly installed on the outer vertical plate 902. One end of the threaded rod 904 is fixedly connected to a hexagonal handle 903, and the other end of the threaded rod 904 is rotatably connected to a limiting pressure plate 906. The limiting pressure plate 906 is located between the inner vertical plate 907 and the outer vertical plate 902, and is located below the horizontal plate 901. The inner vertical plate 907 is placed in the electrolytic cell 10, and the horizontal plate 901 is placed on the top edge of the electrolytic cell 10. The outer vertical plate 902... Placed outside the electrolytic cell 10, the hexagonal handle 903 drives the threaded rod 904 to perform threaded transmission on the inner threaded sleeve 905, causing the limiting pressure plate 906 to move closer to and fit against the outer wall of the electrolytic cell 10. Continue to turn the hexagonal handle 903 until the limiting pressure plate 906 presses against the outer wall of the electrolytic cell 10, fixing the integrated inner vertical plate 907, horizontal plate 901 and outer vertical plate 902 at the edge of the electrolytic cell 10, thereby facilitating the installation and fixation of the fixing structure 9 on the edge of the electrolytic cell 10.

[0042] Working principle:

[0043] The sensing structure is fixed to the edge of the electrolytic cell 10 by the fixing structure 9. The fiber optic sensor 3 is wound and fixed to the winding part 8 of the inner tube 1. The outer tube 2 is sleeved on the inner tube 1 to protect the fiber optic sensor 3. Then, the fiber optic sensor 3, along with the bottom of the outer tube 2 and the inner tube 1, is immersed in the electrolyte. This allows for online sensing and monitoring of the electrolyte temperature while effectively protecting the fiber optic cable from scratches and impacts, thus preventing damage and ensuring monitoring sensitivity. When it is necessary to periodically clean the crystals on the fiber optic sensor 3, the sensing structure is removed from the fixing structure 9. The limiting cap 5 is unscrewed to remove it from the outer tube 1, and then the inner tube 1 is pulled out from the outer tube 2, facilitating the cleaning of the crystals on the fiber optic sensor 3.

[0044] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An online sensing device for electrolyte temperature in hydrometallurgical electrolytic cells, characterized in that: Includes sensing structure and fixed structure (9). The sensing structure includes an inner tube (1), an outer tube (2) and an optical fiber sensor (3). The outer tube (2) is sleeved on the inner tube (1), and a limit stop (6) is fixedly connected to the upper end of the outer wall of the inner tube (1). The top end of the outer tube (2) is threadedly connected to a limiting cap (5), the limiting cap (5) is movably sleeved with the inner tube (1), and the limiting block (6) is located at the top of the outer tube (2) and inside the limiting cap (5). The bottom end of the inner tube (1) is provided with a winding part (8), and one end of the fiber optic sensor (3) passes through the inner tube (1) and is wound around the winding part (8); The outer wall of the outer tube (2) is uniformly provided with through holes (201).

2. The online sensing device for electrolyte temperature in a hydrometallurgical electrolytic cell according to claim 1, characterized in that: Two sets of baffles (7) are fixedly connected to the bottom of the outer wall of the inner tube (1). The winding part (8) is located between the two sets of baffles (7). One set of baffles (7) has a fixed through hole (701) that matches the end of the fiber optic sensor (3). The other set of baffles (7) has an avoidance notch (702) that matches the winding of the fiber optic sensor (3). The avoidance notch (702) extends to the bottom of the inner tube (1).

3. The online sensing device for electrolyte temperature in a hydrometallurgical electrolytic cell according to claim 1, characterized in that: The bottom of the outer tube (2) is provided with a plug (4), the plug (4) and the outer tube (2) are interference fit, and the bottom of the plug (4) is uniformly provided with two through holes.

4. The online sensing device for electrolyte temperature in a hydrometallurgical electrolytic cell according to claim 1, characterized in that: The fixed structure (9) includes an inner vertical plate (907), a horizontal plate (901), an outer vertical plate (902), and a threaded rod (904). The horizontal plate (901) is located between the inner vertical plate (907) and the outer vertical plate (902). The inner vertical plate (907), the horizontal plate (901), and the outer vertical plate (902) are an integral structure.

5. The online sensing device for electrolyte temperature in a hydrometallurgical electrolytic cell according to claim 4, characterized in that: The upper end of the inner vertical plate (907) away from the horizontal plate (901) is fixedly connected with an elastic clamp (909) that engages with the outer tube (2), and the bottom end of the inner vertical plate (907) away from the horizontal plate (901) is fixedly connected with two support rods (908).

6. The online temperature sensing device for electrolyte in a hydrometallurgical electrolytic cell according to claim 4, characterized in that: The threaded rod (904) is threaded with an internal threaded sleeve (905), which is fixedly installed on the outer vertical plate (902). One end of the threaded rod (904) is fixedly connected with a hexagonal handle (903), and the other end of the threaded rod (904) is rotatably connected to a limiting pressure plate (906). The limiting pressure plate (906) is located between the inner vertical plate (907) and the outer vertical plate (902), and is located below the horizontal plate (901).

7. The online sensing device for electrolyte temperature in a hydrometallurgical electrolytic cell according to claim 1, characterized in that: The outer diameter of the limiting block (6) is larger than the inner diameter of the outer tube (2).

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