Hydrogen ion online analyzer

Abstract

The hydrogen ion online analyzer comprises a machine body, a separated cavity is formed in the machine body, a cabinet door used for sealing the cavity is arranged on the surface of the machine body, the cavity comprises an electrical part, a measuring part and a storage part, the electrical part comprises an electrical cavity, and a control module used for online control is arranged in the electrical cavity; the measuring part comprises a detection cavity, a detection pool for detecting hydrogen ions is fixedly mounted on the inner wall of the detection cavity, the detection pool is in communication connection with the control module, and the detection pool is connected with a titration structure for injection; the advanced digital communication technology is adopted, online monitoring and data transmission can be achieved, the measuring system further has the advantage of being intelligent, data can be automatically recorded, data changes can be monitored in real time, the measuring period is shortened, the timeliness of measured data is improved, and a control basis is provided for a liquid making and acid preparing controller.

Description

Technical Field

[0001] The invention relates to the technical field of hydrometallurgy, and in particular to an online hydrogen ion analyzer. Background Art

[0002] In the process of nickel electrolysis, it is necessary to create conditions that allow hydrogen to be precipitated preferentially on the cathode and nickel to dissolve normally on the anode, thereby enriching the nickel ions in the electrolyte. Therefore, sulfuric acid needs to be added to the electrolyte to maintain the appropriate acidity of the electrolyte and inhibit the precipitation of nickel. At the same time, the acidity must be kept low so as not to affect the purification production.

[0003] The electrolyte for nickel electrolysis is composed of a certain amount of sulfuric acid mixed with copper slag leaching solution, iron alum slag filtrate, anode mud washing solution, electrolytic waste acid and external liquid. Since the acidity of these solutions is different and the difference is large, it is necessary to adjust the appropriate acidity to prepare the acid and liquid. The corresponding result is obtained by detecting the hydrogen ion concentration in the solution, which facilitates timely process control and rectification of the corresponding acidity on the production line to ensure the normal progress of production.

[0004] However, existing testing equipment mainly conducts manual testing in offline laboratories, which takes a long time to analyze, has poor inspection effects, unstable analysis results, and slow feedback, which can easily affect the process adjustments of normal production lines. Summary of the invention

[0005] The purpose of the present invention is to provide a hydrogen ion online analyzer, which solves the problems of inconvenient detection on the production line, poor accuracy and untimely feedback proposed by the above background technology.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: A hydrogen ion online analyzer comprises a body, wherein a separated cavity is arranged in the body, a cabinet door for sealing the cavity is arranged on the surface of the body, the cavity comprises an electrical part, a measuring part and a storage part, the electrical part comprises an electrical cavity, a control module for online control is arranged in the electrical cavity; the measuring part comprises a detection cavity, a detection cell for detecting hydrogen ions is fixedly mounted on the inner wall of the detection cavity, the detection cell is communicatively connected to the control module, and the detection cell is connected to a titration structure for injection; the storage part comprises a filtering device, one end of the filtering device is connected to an external pipeline, and the other end of the filtering device is connected to the detection part. Beneficial Effects

[0007] The advanced digital communication technology is adopted to realize online monitoring and data transmission. The measurement system is also intelligent and can automatically record data and monitor the changes of each data in real time, thus shortening the measurement cycle and improving the timeliness of the measurement data. It provides a control basis for the liquid making and acid making controller, enables the acid making process to run automatically, improves the automation control technology level of the workshop, and improves production efficiency and product quality. By using the detector in conjunction with a high-speed camera, the changes in the titration reaction can be observed in a timely and accurate manner, so that the hydrogen ion concentration of the measured solution can be calculated, and accurate data can be obtained for corresponding feedback work, which is convenient for workshop adjustments; Dividing the body into multiple cavities and carrying out classified design can ensure the overall safety strength and reduce safety hazards caused by leakage and other situations.

[0008] Furthermore, an inner cavity is provided in the detection pool, the top of the inner cavity is connected to a containing pool for detection, the top wall of the inner cavity is connected to a pH detector, and the pH detector extends into the containing pool.

[0009] Furthermore, a high-speed camera and a water level sensor are fixedly mounted on the inner wall of the inner cavity, and the high-speed camera and the water level sensor are respectively located on both sides of the containing pool.

[0010] Furthermore, a stirring device for the containing tank is also provided in the inner cavity.

[0011] Furthermore, the titration structure includes a peristaltic pump, the peristaltic pump and the detection cell are connected through a pipeline, and the peristaltic pump and the inner wall of the detection chamber are fixedly connected.

[0012] Furthermore, the peristaltic pump is connected to a syringe pump via a pipeline, the syringe pump is connected to a diverter plate, the diverter plate is used to guide different injection samples, and the diverter plate connects the filter device and the sample pipeline.

[0013] Furthermore, the filtering device comprises a filtering block, the filtering block is connected to a plurality of conduits, the conduits comprise a water inlet pipe and a water outlet pipe, the water outlet pipe is connected to the titration structure, and the water inlet pipe extends out of the machine body.

[0014] Furthermore, the storage part also includes a storage cavity, in which a plurality of partitions are arranged, and the discharge cavity is used for placing samples and waste liquid.

[0015] Furthermore, the electrical part, the measuring part and the storage part are arranged in sequence from top to bottom in the body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure of a machine body in front view according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal rear view structure of a machine body according to an embodiment of the present invention; Figure 4 for Figure 2 The enlarged structural diagram at A in the middle; Figure 5 for Figure 2 The enlarged structural diagram at B in the middle; Figure 6 Schematic diagram of the cross-sectional structure of a detection cell according to an embodiment of the present invention.

[0017] Figure numerals: 11, machine body; 12, operation port; 13, observation port; 14, cabinet door; 21, electrical chamber; 22, detection chamber; 23, storage chamber; 24, partition; 25, control console; 31, shunt pipe; 32, guide plate; 33, injection pump; 34, guide rail groove; 35, pH detector; 36, peristaltic pump; 37, catheter; 41, detection tank; 42, inner cavity; 43, containing tank; 44, stirring motor; 45, water level sensor; 46, high-speed camera; 51, diversion chamber; 52, connecting plate; 53, filter block. DETAILED DESCRIPTION

[0018] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0019] See Figures 1 to 6 As shown, a hydrogen ion online analyzer includes a body 11, wherein a separated cavity is provided in the body 11, and a cabinet door 14 for sealing the cavity is provided on the surface of the body 11. Considering the safety of the detection equipment, the devices are placed inside the cabinet door 14 for protection.

[0020] The cavity includes an electrical part, a measuring part and a storage part. The electrical part, the measuring part and the storage part are separated and placed in sequence from top to bottom, which can isolate the electrical components and the solution transmission components. In case of leakage, they are not easily damaged.

[0021] Among them, the electrical part includes an electrical cavity 21, which is located at the uppermost side of the body 11. The electrical cavity 21 runs through the front and back. A control module 25 is fixedly installed in the electrical cavity 21. The control module 25 is used for communication and control of other internal equipment. At the same time, the distribution box, sockets, etc. are all installed in the electrical cavity. This type of equipment works stably for a long time and is not easy to adjust. Fixed installation can ensure the stability and safety of operation and ensure long-term operation of the device.

[0022] Among them, the control module 25 is the main control part, which is responsible for managing, controlling and processing the circuit signals of the instrument. The control module 25 includes a main controller, relays, PH signal conditioner, analog-to-digital converter, digital-to-analog converter, switching power supply and other components. The end face of the control module 25 also includes a touch screen for control. The cabinet door 14 of the electrical cavity 21 is provided with a through operating port 12 to facilitate the staff to perform debugging and control work.

[0023] In this application, in order to ensure long-term use and stable development and debugging, the main controller uses an industrial-grade embedded controller, which has the advantages of high performance, low cost, and low power consumption. It has powerful computing and processing capabilities, multi-channel analog, switch input and output, and network communication functions, and can connect and drive various sensors and external devices required for specified functions.

[0024] The measuring part is the part for performing detection work, and the measuring part includes a detection cavity 22, and the detection cavity 22 is located below the electrical cavity 21. The measuring part is placed in the middle layer, and liquid leakage in the measuring part will not affect the work of the electrical cavity 21. It is convenient for operation and can isolate electrical components, thereby reducing risks and improving the stability of the equipment.

[0025] A detection pool 41 for detecting hydrogen ions is fixedly mounted on the inner wall of the detection chamber 22 . The detection pool 41 is located at the front. The detection pool 41 is in communication with the control module 25 . The detection work is performed inside the detection pool 41 .

[0026] The detection pool 41 is provided with an inner cavity 42, and the top of the inner cavity 42 is connected to a containing pool 43 for detection. The inside of the containing pool 43 is used to place the solution to be detected. The solution has a certain corrosiveness. The present application is aimed at acid-making liquid, and the acidity test is performed by titration. It is necessary to observe the color change of the titration process in real time, so glass material can be selected.

[0027] The top wall of the inner cavity 42 is connected with a pH detector 35 , and the pH detector 35 extends into the containing tank 43 . During operation, the pH detector 35 will penetrate into the solution to perform detection.

[0028] At the same time, a high-speed camera 46 and a water level sensor 45 are fixedly installed on the inner wall of the inner cavity 42. The high-speed camera 46 and the water level sensor 45 are respectively located on both sides of the containing pool 43. The water level sensor 45 is used to observe the solution height inside the containing pool 43 to facilitate the control of the titration progress. The high-speed camera 46 is used to measure color changes to facilitate observation work. At the same time, the high-speed camera 46 is also provided with a light source to improve color accuracy and ensure observation accuracy.

[0029] The high-speed camera 46, the water level sensor 45, and the pH detector 35 are all connected to the control module 25 via lines for data transmission and control.

[0030] The inner cavity 42 is also provided with a stirring device for the containing tank 43. The stirring device adopts an electromagnetic stirrer. The electromagnetic stirrer can reduce the contact for mixing, ensure better mixing, and does not affect the detection of normal titration.

[0031] The solutions detected in the detection pool 41 are all introduced from the outside. In order to ensure sufficient metering accuracy, the detection pool 41 is connected to a titration structure for injection. The titration structure includes a syringe pump 36. The syringe pump 36 has high accuracy and can perform quantitative control work, thereby realizing quantitative control of the titrant. The titrant needs to be quantitatively controlled. At the same time, the containing pool 43 also needs to inject other samples and water and other solutions. In order to ensure that the titrant will not be contaminated by other impurities during the injection process and affect the titration reaction, therefore, the syringe pump 36 is provided with two, one of which is only used to inject the titrant and the internal cleaned water. The syringe pump 36 is connected to a guide plate 32, and the guide plate 32 is connected to two external catheters. The other syringe pump 36 is used to inject different solutions and samples. The syringe pump 36 is also connected to a guide plate 32, and the guide plate 32 is connected to a number of different catheters, which connects more types of solutions and performs corresponding injection work. The two syringe pumps 36 are connected to the containing pool 43 through catheters.

[0032] After the titration is completed, the waste liquid in the containing tank 43 needs to be discharged and then cleaned. The detection tank 41 is also connected to a peristaltic pump 36, and the peristaltic pump 36 is connected to the containing tank 43 through a catheter. The waste liquid and the cleaning liquid have a large capacity when discharged, and no corresponding metering work is required. Therefore, the peristaltic pump 36 is used for discharge, and the peristaltic pump 36 and the detection tank 41 are connected through a catheter for drainage.

[0033] At the same time, the waste liquid can be used as a sample record to facilitate subsequent inspection feedback. The waste liquid is discharged separately and is not mixed with the cleaning liquid for discharge. Therefore, the peristaltic pump 36 is provided with two, one for waste liquid discharge and the other for cleaning liquid discharge.

[0034] The measuring part also includes a cabinet door 14. The detection chamber 22 runs through the front and back, and the front and back sides are sealed by the cabinet door 14. The injection pump 33, the peristaltic pump 36, and the detection pool 41 are all on one side. The control module 38 of the injection pump 33 is located on the back to facilitate partition renovation and reduce interference.

[0035] The front cabinet door 14 also includes an observation port 13, which is convenient for the working personnel to check and judge the titration work.

[0036] The storage portion includes a material storage chamber 23 and a flow guiding chamber 51 . The material storage chamber 23 and the flow guiding chamber 51 are arranged front and back and are both located at the bottom of the machine body 11 .

[0037] The storage chamber 23 is used to place various reagent barrels, homogenizers, and waste liquid collection barrels to deal with emergencies or problems that arise during equipment maintenance.

[0038] A plurality of partitions 24 are provided in the storage chamber 23, and the interior of the storage chamber 23 is separated by different partitions 24, so that different reagent barrels can be classified and placed, which is convenient for staff to adjust. The peristaltic pump 36 discharges the waste liquid and the cleaning liquid into the reagent barrels of the discharge chamber 23 through the catheter, and the injection pump 33 injects the titrant and various auxiliary solutions in the storage chamber 23.

[0039] A filtering device is provided in the guide cavity 51, and the filtering device is used for pre-treating samples for convenient transmission. A connecting plate 52 is fixedly installed on the inner wall of the guide cavity 51, and a filter block 53 is installed on the connecting plate 52. The filter block 53 is connected to a plurality of conduits, and the conduits are used to guide the flow of samples. Some of the conduits are connected to the filter block 53 and the measuring part, that is, the injection pump 33. The sample filtered by the filter block 53 is transmitted to the injection pump 33 for titration measurement, while another part of the conduits is connected to the filter block 53 and an external pipeline. The conduits extend outside the device and are connected to the main pipeline to facilitate sample collection, thereby performing filtering.

[0040] The above embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A hydrogen ion online analyzer, comprising a body (11), wherein a separated cavity is provided in the body (11), and a cabinet door (14) for sealing the cavity is provided on the surface of the body (11), characterized in that: The cavity comprises an electrical part, a measuring part and a storage part, wherein the electrical part comprises an electrical cavity (21), wherein a control module (25) for online control is arranged in the electrical cavity (21); the measuring part comprises a detection cavity (22), wherein a detection pool (41) for detecting hydrogen ions is fixedly mounted on the inner wall of the detection cavity (22), wherein the detection pool (41) is communicatively connected to the control module (25), and wherein the detection pool (41) is connected to a titration structure for injection; and the storage part comprises a filtering device, wherein one end of the filtering device is connected to an external pipeline, and the other end of the filtering device is connected to the detection part.

2. A hydrogen ion online analyzer according to claim 1, characterized in that: An inner cavity (42) is provided in the detection pool (41); the top of the inner cavity (42) is connected to a containing pool (43) for detection; the top wall of the inner cavity (42) is connected to a pH detector (35); and the pH detector (35) extends into the containing pool (43).

3. A hydrogen ion online analyzer according to claim 2, characterized in that: A high-speed camera (46) and a water level sensor (45) are fixedly mounted on the inner wall of the inner cavity (42); the high-speed camera (46) and the water level sensor (45) are respectively located on two sides of the containing pool (43).

4. A hydrogen ion online analyzer according to claim 3, characterized in that: The inner cavity (42) is also provided with a stirring device for the containing pool (43).

5. The hydrogen ion online analyzer according to claim 1, characterized in that: The titration structure comprises a peristaltic pump (36); the peristaltic pump (36) and the detection pool (41) are connected via a pipeline; and the peristaltic pump (26) and the inner wall of the detection chamber (22) are fixedly connected.

6. A hydrogen ion online analyzer according to claim 5, characterized in that: The peristaltic pump (36) is connected to a syringe pump (33) via a pipeline, and the syringe pump (33) is connected to a diverter disk (32). The diverter disk (32) is used to guide different injection samples, and the diverter disk (32) is connected to the filter device and the sample pipeline.

7. The hydrogen ion online analyzer according to claim 1, characterized in that: The filtering device comprises a filtering block (53), the filtering block (53) being connected to a plurality of conduits (54), the conduits (54) comprising a water inlet pipe and a water outlet pipe, the water outlet pipe being connected to the titration structure, and the water inlet pipe extending out of the machine body.

8. The hydrogen ion online analyzer according to claim 1, characterized in that: The storage portion further comprises a storage cavity (23), a plurality of partitions (24) are arranged in the storage cavity (23), and the discharge cavity (23) is used for placing samples and waste liquid.

9. The hydrogen ion online analyzer according to claim 1, characterized in that: The electrical part, the measuring part and the storage part are arranged in sequence from top to bottom in the machine body (11).

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