An on-line detection system and method for heavy metals in desulfurization wastewater

Abstract

The application discloses an online detection system and method for heavy metals in desulfurization wastewater, comprising an ultrapure water bottle, a liquid synchronous triggering device, a water sample pretreatment unit, an intelligent control and data analysis unit and a plurality of heavy metal standard mother liquor bottles; the outlet of each heavy metal standard mother liquor bottle is connected with the outlet of the ultrapure water bottle through a pipeline and is connected with the inlet of the liquid synchronous triggering device in sequence, the outlet of the water sample pretreatment unit is connected with the inlet of the liquid synchronous triggering device, one side of the liquid synchronous triggering device is provided with a pulse laser, the other side of the liquid synchronous triggering device is provided with a spectrum acquisition system, and the intelligent control and data analysis unit is connected with the pulse laser, the liquid synchronous triggering device and the spectrum acquisition system; the system and the method can detect the concentration of heavy metals in the desulfurization wastewater online, have high accuracy, are high in real-time performance, and are low in working strength and cost.

Description

Technical Field

[0001] This invention belongs to the field of power plant water quality analysis technology, and relates to an online detection system and method for heavy metals in desulfurization wastewater. Background Technology

[0002] Wastewater generated by wet desulfurization in coal-fired power plants has an extremely complex composition, containing high concentrations of chloride ions, calcium sulfate, sulfites, and various heavy metals (such as mercury, lead, and copper), posing a significant threat to the environment. Therefore, the state has strict standards for the discharge of desulfurization wastewater. In the treatment of power plant desulfurization wastewater, organic sulfur agents are added to remove heavy metals from the water samples to meet the discharge requirements.

[0003] Currently, the monitoring of heavy metals in desulfurization wastewater mainly relies on manual sampling and laboratory analysis. This method has significant drawbacks: 1) poor timeliness, unable to reflect water quality fluctuations in real time, making it difficult to achieve process control and early warning, and unable to accurately guide the addition of organic sulfur agents; 2) high workload and cost; 3) subject to human error, with data reliability affected by the sampling and analysis process, resulting in poor accuracy.

[0004] Therefore, developing a method that can adapt to the complex water quality of desulfurization wastewater and simultaneously monitor multiple heavy metals online is of great significance for the treatment and compliant discharge of desulfurization wastewater. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an online detection system and method for heavy metals in desulfurization wastewater. This system and method can detect the concentration of heavy metals in desulfurization wastewater online with high accuracy, strong real-time performance, and low workload and cost.

[0006] To achieve the above objectives, this invention discloses an online detection system for heavy metals in desulfurization wastewater, comprising an ultrapure water bottle, a liquid synchronous triggering device, a water sample pretreatment unit, an intelligent control and data analysis unit, and several heavy metal standard mother liquor bottles. The outlets of each heavy metal standard mother liquor bottle and the outlet of the ultrapure water bottle are connected to the inlet of the liquid synchronous triggering device through a pipeline. The outlet of the water sample pretreatment unit is connected to the inlet of the liquid synchronous triggering device. A pulsed laser is installed on one side of the liquid synchronous triggering device, and a spectral acquisition system is installed on the other side of the liquid synchronous triggering device. The intelligent control and data analysis unit is connected to the pulsed laser, the liquid synchronous triggering device, and the spectral acquisition system.

[0007] Furthermore, each of the metal standard mother liquor bottles includes a mercury standard mother liquor bottle, a lead standard mother liquor bottle, and a copper standard mother liquor bottle. A first dosing pump is installed at the outlet of the mercury standard mother liquor bottle, a second dosing pump is installed at the outlet of the lead standard mother liquor bottle, a third dosing pump is installed at the outlet of the copper standard mother liquor bottle, and an ultrapure water pump is installed at the outlet of the ultrapure water bottle. The outlets of the first, second, and third dosing pumps and the ultrapure water pump are connected to the inlet of the liquid synchronization triggering device via a concatenated pipeline. The intelligent control and data analysis unit is connected to the control terminals of the first, second, and third dosing pumps and the ultrapure water pump.

[0008] Furthermore, the outlet of the water sample pretreatment unit is connected to the inlet of the liquid synchronous triggering device via a sample pump, and the sample pump is connected to the intelligent control and data analysis unit.

[0009] Furthermore, the water sample pretreatment unit is connected to a drainage pipe, and a drainage valve is installed on the drainage pipe. The drainage valve is connected to the intelligent control and data analysis unit.

[0010] This invention discloses an online detection method for heavy metals in desulfurization wastewater. The online detection system for heavy metals in desulfurization wastewater includes an ultrapure water bottle, a liquid synchronous triggering device, a water sample pretreatment unit, an intelligent control and data analysis unit, and several heavy metal standard mother liquor bottles. The outlets of each heavy metal standard mother liquor bottle and the outlet of the ultrapure water bottle are connected to the inlet of the liquid synchronous triggering device via a concatenated pipe. The outlet of the water sample pretreatment unit is connected to the inlet of the liquid synchronous triggering device. A pulsed laser is installed on one side of the liquid synchronous triggering device, and a spectral acquisition system is installed on the other side. The intelligent control and data analysis unit is connected to the pulsed laser, the liquid synchronous triggering device, and the spectral acquisition system.

[0011] Specifically, the online detection method for heavy metals in the desulfurization wastewater includes: The desulfurization wastewater enters the water sample pretreatment unit for pretreatment, and then enters the liquid synchronous triggering device. In the liquid synchronous triggering device, the sample falls in the form of droplets at a fixed frequency. When the liquid synchronous triggering device detects the shadow of the droplet, it sends a synchronous trigger signal to the pulse laser and the spectral acquisition system, causing the pulse laser to generate a high-energy laser pulse, which hits the falling droplet, vaporizes the droplet, and forms a high-temperature plasma. During the cooling process, the high-temperature plasma emits a characteristic spectrum containing the elemental characteristics of the sample. Different elements correspond to different wavelengths of characteristic spectral lines, and different concentrations correspond to different intensities of characteristic spectral lines. The spectral acquisition system collects the characteristic spectral lines corresponding to each heavy metal element in the desulfurization wastewater and then sends them to the intelligent control and data analysis unit. The intelligent control and data analysis unit determines the type and concentration of each heavy metal element in the desulfurization wastewater based on the received characteristic spectral lines.

[0012] Furthermore, the process of determining the type and concentration of each heavy metal element in the desulfurization wastewater based on the received characteristic spectral lines is as follows: The types of heavy metal elements in desulfurization wastewater are determined based on the wavelengths of each characteristic spectral line. The intensity of each characteristic spectral line is compared with the concentration-intensity standard working curve of the corresponding heavy metal element to determine the concentration of each heavy metal element.

[0013] Furthermore, it also includes: plotting standard working curves of concentration-intensity for heavy metal elements.

[0014] Furthermore, the specific process for plotting the concentration-intensity standard working curve for heavy metal elements is as follows: Prepare solutions containing different concentrations of heavy metal elements, then drop the solutions into the liquid synchronous triggering device 4, measure the intensity of the characteristic spectral lines corresponding to different concentrations of heavy metal elements, and plot the concentration-intensity standard working curves of each heavy metal element.

[0015] Furthermore, the heavy metal elements contained in the desulfurization wastewater include at least one of mercury, lead, and copper.

[0016] Furthermore, each of the metal standard mother liquor bottles includes a mercury standard mother liquor bottle, a lead standard mother liquor bottle, and a copper standard mother liquor bottle. A first dosing pump is installed at the outlet of the mercury standard mother liquor bottle, a second dosing pump is installed at the outlet of the lead standard mother liquor bottle, a third dosing pump is installed at the outlet of the copper standard mother liquor bottle, and an ultrapure water pump is installed at the outlet of the ultrapure water bottle. The outlets of the first, second, and third dosing pumps and the ultrapure water pump are connected to the inlet of the liquid synchronization triggering device via a concatenated pipeline. The intelligent control and data analysis unit is connected to the control terminals of the first, second, and third dosing pumps and the ultrapure water pump.

[0017] The present invention has the following beneficial effects: The online detection system and method for heavy metals in desulfurization wastewater described in this invention, based on the fact that different elements correspond to different wavelengths of characteristic spectral lines and different concentrations correspond to different intensities of characteristic spectral lines, collects the characteristic spectral lines corresponding to each heavy metal element in the desulfurization wastewater through a spectral acquisition system, and then sends them to an intelligent control and data analysis unit. The intelligent control and data analysis unit determines the type and concentration of each heavy metal element in the desulfurization wastewater based on the received characteristic spectral lines, thereby achieving the purpose of online detection of heavy metal concentration in desulfurization wastewater. Moreover, the detection accuracy is high, the real-time performance is strong, and the workload and cost are low. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural diagram of the present invention.

[0020] Among them, 1 is the water sample pretreatment unit, 2 is the sample pump, 3 is the pulsed laser, 4 is the liquid synchronous triggering device, 5 is the spectral acquisition system, 6 is the detection unit, 7 is the first dosing pump, 8 is the mercury standard mother liquor bottle, 9 is the second dosing pump, 10 is the lead standard mother liquor bottle, 11 is the third dosing pump, 12 is the copper standard mother liquor bottle, 13 is the ultrapure water pump, 14 is the ultrapure water bottle, and 15 is the intelligent control and data analysis unit. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0023] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " in this invention generally indicates that the preceding and following objects have an "or" relationship.

[0025] It should be understood that although terms such as first, second, third, etc., may be used in the embodiments of the present invention to describe the preset range, these preset ranges should not be limited to these terms. These terms are only used to distinguish the preset ranges from one another. For example, without departing from the scope of the embodiments of the present invention, the first preset range may also be referred to as the second preset range, and similarly, the second preset range may also be referred to as the first preset range.

[0026] Depending on the context, the word "if" as used here can be interpreted as "when," "when," "in response to determination," or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination," "in response to determination," "when detection (of the stated condition or event)," or "in response to detection (of the stated condition or event)."

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] The accompanying drawings illustrate various structural schematic diagrams according to embodiments disclosed in this invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0029] Example 1 refer to Figure 1 The online detection system for heavy metals in desulfurization wastewater of the present invention includes a water sample pretreatment unit 1, a sample pump 2, a detection unit 6, a first dosing pump 7, a mercury standard mother liquor bottle 8, a second dosing pump 9, a lead standard mother liquor bottle 10, a third dosing pump 11, a copper standard mother liquor bottle 12, an ultrapure water pump 13, an ultrapure water bottle 14, and an intelligent control and data analysis unit 15; the detection unit 6 includes a pulsed laser 3, a liquid synchronous triggering device 4, and a spectral acquisition system 5; The outlet of ultrapure water bottle 14 is connected to the inlet of liquid synchronization triggering device 4 via ultrapure water pump 13. The outlet of copper standard mother liquor bottle 12 is connected to the inlet of liquid synchronization triggering device 4 via third dosing pump 11. The outlet of lead standard mother liquor bottle 10 is connected to the inlet of liquid synchronization triggering device 4 via second dosing pump 9. The outlet of mercury standard mother liquor bottle 8 is connected to the inlet of liquid synchronization triggering device 4 via first dosing pump 7. The outlet of water sample pretreatment unit 1 is connected to the inlet of liquid synchronization triggering device 4 via sample pump 2. Pulsed laser 3 is located on one side of liquid synchronization triggering device 4, and spectral acquisition system 5 is located on the other side of liquid synchronization triggering device 4. Water sample pretreatment unit 1 is also connected to a drainage pipe, and a drainage valve is installed on the drainage pipe.

[0030] The intelligent control and data analysis unit 15 is connected to the drain valve, sample pump 2, pulsed laser 3, liquid synchronous triggering device 4, spectral acquisition system 5, detection unit 6, first dosing pump 7, second dosing pump 9 and third dosing pump 11.

[0031] Example 2 This embodiment discloses an online detection method for heavy metals in desulfurization wastewater. The online detection method for heavy metals in desulfurization wastewater is based on an online detection system for heavy metals in desulfurization wastewater. The online detection system for heavy metals in desulfurization wastewater includes a water sample pretreatment unit 1, a sample pump 2, a detection unit 6, a first dosing pump 7, a mercury standard mother liquor bottle 8, a second dosing pump 9, a lead standard mother liquor bottle 10, a third dosing pump 11, a copper standard mother liquor bottle 12, an ultrapure water pump 13, an ultrapure water bottle 14, and an intelligent control and data analysis unit 15. The detection unit 6 includes a pulsed laser 3, a liquid synchronous triggering device 4, and a spectral acquisition system 5, with specific connections as shown in Embodiment 1.

[0032] Specifically, the online detection method for heavy metals in the desulfurization wastewater includes the following steps: Desulfurization wastewater enters the water sample pretreatment unit 1 through the inlet for sample pretreatment to remove large particulate matter such as suspended solids. In the water sample pretreatment unit 1, suspended solids are retained, and the clear filtrate enters the liquid synchronous triggering device 4 in the detection unit 6 via the sample pump 2. In the liquid synchronous triggering device 4, the sample falls in droplet form at a fixed frequency. The droplet synchronous triggering device (such as a pair of laser-beam optical fibers) sends a synchronous trigger signal to the pulsed laser 3 and the spectral acquisition system 5 the instant the droplet shadow is detected. Upon detecting the arrival of the droplet, the liquid synchronous triggering device 4 immediately triggers the pulsed laser 3, which generates a high-energy laser pulse. The laser pulse accurately hits the falling droplet, instantly vaporizing it and forming a high-temperature plasma. During the cooling process, the plasma emits a characteristic spectrum containing elemental information of the sample. Each element has its unique electronic energy level structure, thus emitting a set of characteristic spectral lines of specific wavelengths. The spectral acquisition system 5 records these characteristic spectra, capable of recording the wavelengths and intensities of the characteristic spectral lines of different heavy metal elements. Finally, by comparing the intensity ratio of the target element spectral lines with that of the internal standard element spectral lines, the true concentration of each heavy metal in the wastewater is calculated based on the pre-established calibration curve.

[0033] Each heavy metal element has a unique characteristic emission spectral line with a specific wavelength. Furthermore, within a certain concentration range, the intensity (or integrated area) of a characteristic spectral line of an element in plasma is directly proportional to the concentration of that element in the sample. By measuring a series of standard water samples with known concentrations and recording the wavelength and intensity of their characteristic spectral lines, a "concentration-intensity" standard working curve can be plotted. Under the same experimental conditions, by measuring the spectral wavelength and intensity of an unknown water sample, the element type can be qualitatively identified first. Then, by substituting the values ​​into the calibration curve for that element, the concentration of different types of heavy metals can be calculated.

[0034] Before measuring the sample, the system automatically plots standard working curves for different elements periodically and stores them in the intelligent control and data analysis unit 15. During the plotting of the standard working curves, the flow rates of the first dosing pump 7, the second dosing pump 9, and the third dosing pump 11, along with the flow rate of the ultrapure water pump 13, are adjusted to dynamically prepare standard solutions of different concentrations. Then, following the sample measurement procedure, the solution enters the liquid synchronous triggering device 4, where the sample falls in droplet form at a fixed frequency. The droplet synchronous triggering device (such as a pair of laser-beam optical fibers) sends a synchronous trigger signal to the pulsed laser 3 and the spectral acquisition system 5 the instant the droplet shadow is detected. Upon detecting the arrival of the droplet, the droplet synchronous triggering device immediately triggers the pulsed laser 3, which generates a high-energy laser pulse. The laser pulse accurately hits the falling droplet, instantly vaporizing it and forming a high-temperature plasma. During the cooling process, the plasma emits an emission spectrum containing the elemental characteristic information of the sample. The spectral acquisition system 5 records the characteristic spectral lines of mercury, lead, and copper, noting their wavelengths and intensities, and plots a "concentration-intensity" standard working curve. Subsequent sample analysis can then utilize this built-in standard working curve to achieve qualitative and quantitative analysis of different heavy metals.

[0035] In specific testing, the concentration-intensity standard working curves of different metal elements are first detected, then the characteristic spectral lines of the sample to be tested are detected, and then the characteristic spectral lines of the sample to be tested are compared with the concentration-intensity standard working curves of different metal elements to determine the concentration of metal elements contained in the sample to be tested.

[0036] It should be noted that this invention enables rapid, accurate, and simultaneous quantitative and qualitative analysis of multiple heavy metal elements. This invention effectively solves the technical problems of traditional heavy metal detection methods, such as untimely detection, poor measurement accuracy, and the inability to achieve online detection, enabling operation and high-precision detection in harsh industrial environments.

[0037] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and disclosure of the invention. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the following claims.

[0038] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

[0039] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An online detection system for heavy metals in desulfurization wastewater, characterized in that, It includes an ultrapure water bottle (14), a liquid synchronous triggering device (4), a water sample pretreatment unit (1), an intelligent control and data analysis unit (15), and several heavy metal standard mother liquor bottles; The outlets of each heavy metal standard mother liquor bottle and the outlet of the ultrapure water bottle (14) are connected to the inlet of the liquid synchronous triggering device (4) through a pipe. The outlet of the water sample pretreatment unit (1) is connected to the inlet of the liquid synchronous triggering device (4). A pulsed laser (3) is installed on one side of the liquid synchronous triggering device (4), and a spectral acquisition system (5) is installed on the other side of the liquid synchronous triggering device (4). The intelligent control and data analysis unit (15) is connected to the pulsed laser (3), the liquid synchronous triggering device (4), and the spectral acquisition system (5).

2. The online detection system for heavy metals in desulfurization wastewater according to claim 1, characterized in that, Each of the metal standard mother liquor bottles includes a mercury standard mother liquor bottle (8), a lead standard mother liquor bottle (10), and a copper standard mother liquor bottle (12). The mercury standard mother liquor bottle (8) is equipped with a first dosing pump (7), the lead standard mother liquor bottle (10) is equipped with a second dosing pump (9), the copper standard mother liquor bottle (12) is equipped with a third dosing pump (11), and the ultrapure water bottle (14) is equipped with an ultrapure water pump (13). The outlets of the first dosing pump (7), the second dosing pump (9), the third dosing pump (11), and the ultrapure water pump (13) are connected to the inlet of the liquid synchronization triggering device (4) through a pipeline. The intelligent control and data analysis unit (15) is connected to the control terminals of the first dosing pump (7), the second dosing pump (9), the third dosing pump (11), and the ultrapure water pump (13).

3. The online detection system for heavy metals in desulfurization wastewater according to claim 1, characterized in that, The outlet of the water sample pretreatment unit (1) is connected to the inlet of the liquid synchronous triggering device (4) through the sample pump (2), and the sample pump (2) is connected to the intelligent control and data analysis unit (15).

4. The online detection system for heavy metals in desulfurization wastewater according to claim 1, characterized in that, The water sample pretreatment unit (1) is connected to a drainage pipe, and a drainage valve is installed on the drainage pipe. The drainage valve is connected to the intelligent control and data analysis unit (15).

5. An online detection method for heavy metals in desulfurization wastewater, characterized in that, The online detection system for heavy metals in desulfurization wastewater according to claim 1 includes: The desulfurization wastewater enters the water sample pretreatment unit (1) for pretreatment, and then enters the liquid synchronous triggering device (4). In the liquid synchronous triggering device (4), the sample falls in the form of droplets at a fixed frequency. When the liquid synchronous triggering device (4) detects the shadow of the droplet, it sends a synchronous triggering signal to the pulse laser (3) and the spectral acquisition system (5), so that the pulse laser (3) generates a high-energy laser pulse and hits the falling droplet, vaporizing the droplet and forming a high-temperature plasma. The high-temperature plasma emits a characteristic spectrum containing the elemental characteristic information in the sample during the cooling process. The wavelengths of the characteristic spectral lines corresponding to different elements are different, and the intensities of the characteristic spectral lines corresponding to different concentrations are different. The spectral acquisition system (5) collects the characteristic spectral lines corresponding to each heavy metal element in the desulfurization wastewater and then sends them to the intelligent control and data analysis unit (15). The intelligent control and data analysis unit (15) determines the type and concentration of each heavy metal element in the desulfurization wastewater based on the received characteristic spectral lines.

6. The online detection method for heavy metals in desulfurization wastewater according to claim 5, characterized in that, The process of determining the type and concentration of each heavy metal element in the desulfurization wastewater based on the received characteristic spectral lines is as follows: The types of heavy metal elements in desulfurization wastewater are determined based on the wavelengths of each characteristic spectral line. The intensity of each characteristic spectral line is compared with the concentration-intensity standard working curve of the corresponding heavy metal element to determine the concentration of each heavy metal element.

7. The online detection method for heavy metals in desulfurization wastewater according to claim 5, characterized in that, Also includes: Plot the concentration-intensity standard working curves for heavy metal elements.

8. The online detection method for heavy metals in desulfurization wastewater according to claim 5, characterized in that, The specific process for plotting the concentration-intensity standard working curve of heavy metal elements is as follows: Prepare solutions containing different concentrations of heavy metal elements, then drop the solutions into a liquid synchronous triggering device (4), measure the intensity of the characteristic spectral lines corresponding to different concentrations of heavy metal elements, and plot the concentration-intensity standard working curves of each heavy metal element.

9. The online detection method for heavy metals in desulfurization wastewater according to claim 5, characterized in that, The heavy metal elements contained in the desulfurization wastewater include at least one of mercury, lead, and copper.

10. The online detection method for heavy metals in desulfurization wastewater according to claim 5, characterized in that, Each of the metal standard mother liquor bottles includes a mercury standard mother liquor bottle (8), a lead standard mother liquor bottle (10), and a copper standard mother liquor bottle (12). The mercury standard mother liquor bottle (8) is equipped with a first dosing pump (7), the lead standard mother liquor bottle (10) is equipped with a second dosing pump (9), the copper standard mother liquor bottle (12) is equipped with a third dosing pump (11), and the ultrapure water bottle (14) is equipped with an ultrapure water pump (13). The outlets of the first dosing pump (7), the second dosing pump (9), the third dosing pump (11), and the ultrapure water pump (13) are connected to the inlet of the liquid synchronization triggering device (4) through a pipeline. The intelligent control and data analysis unit (15) is connected to the control terminals of the first dosing pump (7), the second dosing pump (9), the third dosing pump (11), and the ultrapure water pump (13).

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