Online measurement electrode cleaning protection system

Abstract

The utility model relates to the technical field of electrode online measurement, in particular to an online measurement electrode cleaning protection system which comprises a workbench, a plurality of supporting legs are arranged at the bottom of the workbench, and foot pads are installed at the lower ends of the supporting legs. The rear side of the upper end of the workbench is provided with a measuring assembly capable of realizing self-rotation and height adjustment, the upper end of the workbench is provided with a protection groove, a placement seat and an analysis cleaning groove in front of the measuring assembly, and the protection groove, the placement seat and the analysis cleaning groove are located on an arc line with the measuring assembly as the circle center. Through the functions of controlling the electrode to move up and down, turn and the like, intermittent pH measurement and analysis of a sample are realized, and cleaning and daily maintenance of the electrode are realized after the sample is analyzed; the service life of the electrode is prolonged, the cost of consumables is reduced, full-automatic electrode cleaning and daily maintenance functions are provided, and the accuracy of a measurement result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of on-line electrode measurement, in particular to an on-line measurement electrode cleaning and protection system. Background Technique

[0002] During the on-line electrode method measurement process, the electrode is immersed in the corrosive analysis solution for a long time, which will cause serious corrosion to the electrode and greatly affect the electrode life. Moreover, the lack of cleaning and daily maintenance before each test will also affect the performance of the electrode, resulting in inaccurate test data.

[0003] Existing technologies all perform regular maintenance and regular electrode replacement manually. Regular maintenance requires labor and time costs. If the operation is improper or the maintenance is not in place, it may affect the accuracy of the measurement results. Replacing the electrode will also lead to an increase in consumable costs.

[0004] Therefore, those skilled in the art have provided an on-line measurement electrode cleaning and protection system to solve the problems raised in the above background technique. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an on-line measurement electrode cleaning and protection system, which includes a workbench. A plurality of support legs are provided at the bottom of the workbench, and foot pads are installed at the lower ends of the support legs;

[0006] At the rear side of the upper end of the workbench, there is a measurement component that can realize its own rotation and height adjustment. In front of the measurement component at the upper end of the workbench, there are a protection tank, a placement seat and an analysis and cleaning tank. The protection tank, the placement seat and the analysis and cleaning tank are located on an arc line centered on the measurement component.

[0007] Preferably: The placement seat is located in the middle position, the protection tank is placed on the left side of the placement seat, the analysis and cleaning tank is arranged on the right side of the placement seat, a protection liquid is injected into the protection tank, and the analysis tank brought by the user is placed in the placement seat.

[0008] Preferably: A liquid inlet pipe is installed on the side wall of the analysis and cleaning tank. The liquid inlet pipe is connected with two branch pipes. One of the branch pipes is set as a material liquid pipe, and the other branch pipe is a cleaning liquid pipe. Solenoid valves II are installed on both the material liquid pipe and the cleaning liquid pipe.

[0009] Preferably: Drain pipes are arranged at the bottoms of both the protection tank and the analysis and cleaning tank, and solenoid valves I are installed on the drain pipes.

[0010] Preferably: The measurement component includes a base, a rotating seat, a motor and an electrode holder. The base is fixed at the upper end of the workbench, a rotating seat rotatably connected therewith is provided at its upper end, and a motor is further installed in the base. The output shaft of the motor is connected with the rotating seat.

[0011] Preferably, an electric push rod is provided at the upper end of the rotating base, an electrode holder is installed at the top of the electric push rod, and an electrode is provided at the bottom of the electrode holder.

[0012] The technical effects and advantages of the present utility model are as follows:

[0013] (1) Realize the intermittent measurement and analysis of the pH of the sample, and realize the cleaning and daily maintenance of the electrode after the sample analysis;

[0014] (2) Improve the service life of the electrode and reduce the consumable cost;

[0015] (3) Provide a fully automatic electrode cleaning and daily maintenance function, and improve the accuracy of the measurement results. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of an on-line measurement electrode cleaning and protection system provided by an embodiment of the present application; Figure 1 ;

[0017] Figure 2 is a schematic structural diagram of an on-line measurement electrode cleaning and protection system provided by an embodiment of the present application; Figure 2 ;

[0018] Figure 3 is a schematic structural diagram of a measurement component in an on-line measurement electrode cleaning and protection system provided by an embodiment of the present application.

[0019] In the figure:

[0020] 1, workbench; 2, support leg; 3, measurement component; 4, protection tank; 5, analysis and cleaning tank; 6, placement seat; 7, drain pipe; 8, solenoid valve 1; 9, inlet pipe; 10, liquid supply pipe; 11, cleaning liquid pipe; 12, solenoid valve 2; 31, base; 32, rotating base; 33, motor; 34, electric push rod; 35, electrode holder; 36, electrode. Detailed Embodiments

[0021] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments. The embodiments of the present utility model are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present utility model to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0022] Embodiment

[0023] Please refer to Figures 1 to 3, in this embodiment, an online measurement electrode cleaning and protection system is provided, including a workbench 1. A plurality of support legs 2 are provided at the bottom of the workbench 1, and foot pads are installed at the lower ends of the support legs 2. The foot pads play an anti-slip effect and can increase the stability of the workbench 1 during use;

[0024] A measurement component 3 is provided at the rear side of the upper end of the workbench 1. The measurement component 3 can achieve its own rotation and height adjustment, facilitating automated measurement. Moreover, a protection groove 4, a placement seat 6, and an analysis and cleaning groove 5 are arranged in front of the measurement component 3 at the upper end of the workbench 1. The protection groove 4, the placement seat 6, and the analysis and cleaning groove 5 are located on an arc line centered on the measurement component 3. In this way, when the measurement component 3 rotates, the electrode 36 thereon can accurately align with the protection groove 4, the placement seat 6, and the analysis and cleaning groove 5, thereby enabling measurement, cleaning, and protection;

[0025] Among them, the placement seat 6 is located in the middle position, the protection groove 4 is placed on the left side of the placement seat 6, and the analysis and cleaning groove 5 is arranged on the right side of the placement seat 6. A protective liquid is injected into the protection groove 4. The placement seat 6 provides a placement position for the analysis groove brought by the user, increasing the practicability and adaptability of the entire protection system. As for the analysis and cleaning groove 5, it is used to analyze the liquid material and inject cleaning liquid after analysis to clean the electrode 36;

[0026] Thus, a liquid inlet pipe 9 is installed on the side wall of the analysis and cleaning groove 5. The liquid inlet pipe 9 is connected with two branch pipes. One of the branch pipes is set as a liquid material pipe 10, through which liquid material is injected into the analysis and cleaning groove 5 for measurement, and the other branch pipe is a cleaning liquid pipe 11, which is used to inject cleaning liquid to clean the electrode 36 after measurement. Solenoid valves II 12 are installed on both the liquid material pipe 10 and the cleaning liquid pipe 11. After one is opened, the other is closed to achieve the conduction of a single branch pipe and avoid liquid mixing;

[0027] In addition, drain pipes 7 are provided at the bottoms of both the protection groove 4 and the analysis and cleaning groove 5. The drain pipes 7 are used to drain the waste liquid inside both of them. Solenoid valves I 8 are installed on the drain pipes 7. After opening, the waste liquid can be drained;

[0028] The measuring component 3 includes a base 31, a rotating base 32, a motor 33 and an electrode holder 35. The base 31 is fixed to the upper end of the workbench 1. The upper end of the base 31 is provided with a rotating base 32 rotatably connected thereto. The base 31 also houses a motor 33. The output shaft of the motor 33 is connected to the rotating base 32. After the motor 33 is started, it can drive the rotating base 32 to rotate on the base 31. An electric push rod 34 is provided at the upper end of the rotating base 32. The top of the electric push rod 34 is equipped with an electrode holder 35. An electrode 36 is provided at the bottom of the electrode holder 35. When the rotating base 32 rotates, it drives the electric push rod 34 to rotate together. The electric push rod 34 causes the electrode holder 35 to rotate, and thus the electrode 36 also rotates accordingly, so as to realize the switching among the protection tank 4, the analysis and cleaning tank 5 and the placement seat 6. After rotating to the corresponding position, the electric push rod 34 drives the electrode holder 35 to descend, that is, the electrode 36 descends into the corresponding tank to realize measurement or protection thereof.

[0029] For the online measurement electrode cleaning and protection system of the present utility model, when it works, there are two situations:

[0030] When the user does not specify an analysis tank, that is, the user-specified analysis tank is not placed in the placement seat 6

[0031] After receiving the instruction from the system control unit, the electrode holder 35 will lift the electrode 36 from the protective liquid in the protection tank 4 and turn it to one side of the analysis and cleaning tank 5, then descend into the tank. The waste discharge solenoid valve 8 is closed, and at the same time, the solenoid valve 12 on the liquid supply pipe 10 is opened to allow the liquid to enter the analysis and cleaning tank 5. After submerging the lower end of the electrode 36 by 100 mm, the solenoid valve 12 on the liquid supply pipe 10 is closed, and the electrode 36 starts to analyze. After receiving the instruction of the end of analysis, the solenoid valve 8 on the drain pipe 7 is opened to drain the liquid, and at the same time, the solenoid valve 12 on the cleaning liquid pipe 11 is opened to spray the cleaning liquid to clean the electrode 36. After uploading the instruction of the end of cleaning, after receiving the protection instruction, the electrode holder 35 will lift the electrode 36 from the analysis and cleaning tank 5 and turn it to one side of the protection tank 4, then descend into the protective liquid to realize the protection function of the electrode 36.

[0032] The user specifies an analysis tank

[0033] After receiving the instruction from the system control unit, the electrode holder 35 will lift the electrode 36 from the protective liquid and turn it to one side of the analysis tank in the placement seat 6, then descend into the tank to start the analysis. After receiving the instruction of the end of analysis, the electrode holder 35 will lift the electrode 36 from the analysis liquid and turn it to one side of the analysis and cleaning tank 5, then descend into the tank to clean the electrode 36. After uploading the instruction of the end of cleaning, after receiving the protection instruction, the electrode holder 35 will lift the electrode 36 from the analysis and cleaning tank 5 and turn it to one side of the protection tank 4, then descend into the protective liquid to realize the protection function of the electrode 36.

[0034] The utility model realizes the intermittent measurement and analysis of the pH value of a sample by controlling functions such as the up-and-down movement and rotation of the electrode 36, and realizes the cleaning and daily maintenance of the electrode 36 after sample analysis; it improves the service life of the electrode, reduces the consumable cost, provides a fully automatic cleaning and daily maintenance function for the electrode 36, and improves the accuracy of measurement results.

[0035] Based on the above scheme, the protection system is used for measurement:

[0036] In the hydrometallurgical process, compared with ammonia leaching and atmospheric acid leaching, high-pressure acid leaching (HPAL) has a higher recovery rate of nickel and cobalt, which is the mainstream direction of hydrometallurgical development. However, its process is complex and the error tolerance is low. This process generally uses dilute sulfuric acid as the leaching solution. Under the high-temperature and high-pressure environment of 240-270 °C and 4-5 MPa (about 40-50 times the standard atmospheric pressure), the process parameters are adjusted to make nickel and cobalt enter the leaching solution, and most of the iron and silicon enter the slag, and MHP (nickel cobalt hydroxide) or MSP (nickel cobalt sulfide) are obtained through subsequent neutralization, impurity removal and precipitation.

[0037] pH measurement is very important in HPAL. Ammonia injection and solvent extraction are two key components in the nickel extraction process. The entry of dissolved gas into the sensing element of the sensor is a common cause of premature sensor failure. Solvent extraction also poses many unique challenges to pH measurement. The presence of organic solvents can dissolve many common materials, resulting in inaccurate pH measurement results.

[0038] The conventional detection method is to immerse the pH electrode in the material liquid for a long time and measure it once every 1 hour. Imported acid-resistant electrodes are selected, and the service life of each electrode is about 3 months, with a high consumable cost. At the same time, when the electrode is immersed in the material liquid for a long time, the acidic substances in the material liquid will corrode the glass membrane of the electrode, resulting in inaccurate measurement data.

[0039] When using this system for measurement, after receiving the analysis instruction from the system control unit, the electrode holder 35 will lift the electrode 36 from the protective liquid, turn it to the side of the analysis tank in the placement seat 6, lower it into the tank, and start the analysis; after receiving the instruction of the end of analysis, the electrode holder 35 will lift the electrode 36 from the analysis liquid, turn it to the side of the analysis cleaning tank 5, lower it into the tank, and at the same time open the waste discharge solenoid valve 8 and the cleaning solenoid valve 12, and the cleaning liquid will clean the outer wall and the glass membrane of the electrode 36; after the end, upload the cleaning end instruction, and after receiving the protection instruction, the electrode holder 35 will lift the electrode 36 from the analysis cleaning tank 5, turn it to the side of the protection tank 4, and lower it into the protective liquid to realize the protection function of the electrode.

[0040] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model. Structures, devices, and operation methods not specifically described and explained in the present utility model shall be implemented by conventional means in the art unless otherwise specified and limited.

Claims

1. An online measurement electrode cleaning and protection system, comprising a workbench (1), a plurality of support legs (2) being provided at the bottom of the workbench (1), and foot pads being installed at the lower ends of the support legs (2), characterized in that: A measuring assembly (3) capable of self-rotation and height adjustment is provided at the rear side of the upper end of the workbench (1); a protection groove (4), a placement seat (6) and an analysis and cleaning groove (5) are provided at the upper end of the workbench (1) in front of the measuring assembly (3); the protection groove (4), the placement seat (6) and the analysis and cleaning groove (5) are located on an arc line with the measuring assembly (3) as the center.

2. The online measurement electrode cleaning protection system according to claim 1 is characterized in that: The placement seat (6) is located in the middle, the protection tank (4) is placed on the left side of the placement seat (6), the analysis and cleaning tank (5) is arranged on the right side of the placement seat (6), a protection liquid is injected into the protection tank (4), and the analysis tank brought by the user is placed in the placement seat (6).

3. The online measurement electrode cleaning protection system according to claim 1 is characterized in that: A liquid inlet pipe (9) is installed on the side wall of the analysis and cleaning tank (5), and the liquid inlet pipe (9) is connected to two branch pipes, one of which is set as a feed liquid pipe (10) and the other branch is a cleaning liquid pipe (11). Solenoid valve 2 (12) is installed on both the feed liquid pipe (10) and the cleaning liquid pipe (11).

4. The online measurement electrode cleaning protection system according to claim 1, characterized in that: A drainage pipe (7) is provided at the bottom of the protection tank (4) and the analysis and cleaning tank (5), and a solenoid valve (8) is installed on the drainage pipe (7).

5. The online measurement electrode cleaning protection system according to claim 1, characterized in that: The measuring assembly (3) comprises a base (31), a rotating base (32), a motor (33) and an electrode frame (35); the base (31) is fixed to the upper end of the workbench (1); a rotating base (32) rotatably connected to the base (31) is provided at the upper end; a motor (33) is also installed in the base (31); an output shaft of the motor (33) is connected to the rotating base (32).

6. The online measurement electrode cleaning protection system according to claim 5, characterized in that: An electric push rod (34) is arranged at the upper end of the rotating seat (32), an electrode frame (35) is installed on the top of the electric push rod (34), and an electrode (36) is arranged at the bottom of the electrode frame (35).

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