Device for rapidly measuring content of sulfate radicals

Abstract

The utility model provides a device for rapidly measuring the content of sulfate radicals, and relates to the technical field of water quality detection of water for polycrystalline silicon production. An inlet of the metering pump is connected with a sampling pipeline, and an outlet is connected with a conveying pipeline; the sampling pipeline is connected with the sample container; the conveying pipeline is connected with an inlet of the reaction container; the metering pump is provided with a detection mechanism which can detect the amount of samples conveyed by the metering pump; a detection reagent can be introduced into the reaction container, and the detection reagent is used for reacting with a sample to generate a colored product; the photoelectric detector is arranged close to the reaction container and is used for detecting the absorbance of the colored product; and the input end of the data processor is electrically connected with the output end of the photoelectric detector and the output end of the detection mechanism. Compared with an ultraviolet spectrophotometry, the method for determining the sulfate radical content of the water for polycrystalline silicon production based on the spectrophotometry has the advantages of higher detection precision and more convenient operation.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection for polysilicon production, in particular to a device for rapidly determining the sulfate content. Background Technique

[0002] In the polysilicon production process, if the sulfate content in the production water exceeds the standard, the following impacts will occur: it is easy to cause corrosion to equipment and affect the service life of the equipment; sulfate ions will also affect the water quality balance and stability of industrial circulating water. An excessively high sulfate ion content may lead to an imbalance in the ion balance in water, thereby affecting the stability of water quality parameters such as pH value and conductivity; in the sewage treatment link, it often combines with hardness ions such as calcium and magnesium to generate precipitation and scaling substances, resulting in the clogging of the filter membrane in the purification system, greatly reducing the sewage treatment volume, and increasing the system operation cost.

[0003] Currently, the ultraviolet spectrophotometry method is used to detect the sulfate ion content, which has the following disadvantages:

[0004] 1. Low precision: It is easily interfered by other ion impurities, such as silicate ions;

[0005] 2. Complicated operation and long time-consuming, difficult to meet the requirement of rapid determination: The detection limit of this method is low, and high-concentration substances need to be diluted before detection; when detecting, it is necessary to control the acidity and alkalinity ranges. Content of the Utility Model

[0006] In view of the above situation, the utility model provides a device for rapidly determining the sulfate content, aiming to solve the technical problems that the existing ultraviolet spectrophotometry method for detecting the sulfate ion content has low precision, complicated operation, long time-consuming, and difficult to meet the requirement of rapid determination.

[0007] To achieve the above object, the utility model provides the following technical solutions:

[0008] The utility model provides a device for rapidly determining the sulfate content, including:

[0009] A sample container;

[0010] A metering pump, whose inlet is connected with a sampling pipeline and the outlet is connected with a conveying pipeline; the sampling pipeline is connected with the sample container, and the conveying pipeline is connected with the inlet of the reaction container; the metering pump has a detection mechanism, and the detection mechanism can detect the amount of the sample conveyed by the metering pump;

[0011] A reaction container, into which detection reagents can be introduced, and the detection reagents are used to react with the sample to produce a colored product;

[0012] A photoelectric detector, arranged close to the reaction container, for detecting the absorbance of the colored product;

[0013] A data processor, whose input end is electrically connected to the output end of the photoelectric detector and the output end of the detection mechanism.

[0014] In some embodiments of the present utility model, a stirrer is arranged in the sample container.

[0015] In some embodiments of the present utility model, a flushing pipeline is arranged in the sample container.

[0016] In some embodiments of the present utility model, it further includes a reagent storage for storing the detection reagent, and the outlet of the reagent storage is connected to the reaction container.

[0017] In some embodiments of the present utility model, there are multiple reagent storages.

[0018] In some embodiments of the present utility model, the reagent storage includes a push rod and a push plug which are connected to each other, and the push plug is in sliding and sealing fit with the inner wall of the reagent storage.

[0019] In some embodiments of the present utility model, the push rod is connected to a power source.

[0020] In some embodiments of the present utility model, the reaction container is spherical.

[0021] In some embodiments of the present utility model, a temperature control tank is arranged outside the reaction container, and the temperature control tank has a heating mechanism.

[0022] In some embodiments of the present utility model, the heating power of the heating mechanism is adjustable.

[0023] The embodiments of the present utility model have at least the following advantages or beneficial effects:

[0024] 1. This application measures the sulfate content in the water used for polysilicon production based on spectroscopy, which has the advantages of higher detection accuracy and more convenient operation compared with the ultraviolet spectrophotometry.

[0025] 2. Through the settings of the sample container, metering pump, reaction container, photoelectric detector and data processor, the manual intervention in the whole detection process is extremely small, and the detection can be completed quickly and efficiently.

[0026] Other features and advantages of the present utility model will be described in the subsequent specification, and some of them will become obvious from the specification or be understood by implementing the present utility model. Description of the Drawings

[0027] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of a device for quickly measuring the sulfate content.

[0029] Icon:

[0030] 1 - Sample container, 11 - Stirrer, 12 - Flushing pipeline,

[0031] 2 - Metering pump, 21 - Sampling pipeline, 22 - Delivery pipeline,

[0032] 3 - Reaction container,

[0033] 4 - Reagent storage,

[0034] 5 - Temperature control tank,

[0035] 6 - Photoelectric detector,

[0036] 7 - Data processor. Detailed implementation manners

[0037] In the following, only some exemplary embodiments are briefly described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present invention.

[0038] In the description of the embodiments of the present invention, it should be understood that the meaning of the term "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0040] The following will detail the embodiments of the present invention with reference to the accompanying drawings.

[0041] See Figure 1, this embodiment provides a device for rapidly determining the sulfate content, which includes a sample container 1, a stirrer 11, a metering pump 2, a reaction container 3, a reagent storage 4, a temperature control tank 5, a photoelectric detector 6, and a data processor 7.

[0042] The sample container 1 is used to store the samples taken from the water used in polysilicon production. A flushing pipeline 12 for flushing and cleaning the interior is provided inside the sample container 1.

[0043] The stirrer 11 is arranged in the sample container 1 and is used to stir the samples evenly.

[0044] The inlet of the metering pump 2 is connected with a sampling pipeline 21, and the outlet is connected with a conveying pipeline 22; the sampling pipeline 21 is connected with the sample container 1, and the conveying pipeline 22 is connected with the inlet of the reaction container 3; the metering pump 2 has a detection mechanism, and the detection mechanism can detect the amount of samples conveyed by the metering pump 2.

[0045] Detection reagents can be introduced into the reaction container 3, and the reaction container 3 is spherical. The detection reagents include a buffer reagent (potassium chloride-hydrochloric acid buffer solution, concentration 0.2 moL / L, addition amount 10 mL) and a reaction reagent (sodium rhodizonate, concentration 2 mg / ml, addition amount 2 mL).

[0046] The reagent storage 4 is used to store the detection reagents. There can be multiple reagent storages 4 for classifying and storing the detection reagents. The outlet of the reagent storage 4 is connected with the reaction container 3, and a valve (not shown in the figure) is provided at the outlet of the reagent storage 4. In this embodiment, the reagent storage 4 includes a push rod and a push plug (not shown in the figure) connected to each other. The push plug is in sliding sealing fit with the inner wall of the reagent storage 4. The push rod can be connected to a power source such as a cylinder to drive the push plug to push the detection reagents into the reaction container 3 faster, improving the efficiency of adding reagents.

[0047] The temperature control tank 5 is arranged outside the reaction container 3, and the temperature control tank 5 is cylindrical. In this embodiment, the bottom of the temperature control tank 5 has a heating mechanism (not shown in the figure) with adjustable heating power.

[0048] The photoelectric detector 6 is arranged close to the reaction container 3 and is used to detect the absorbance of the colored product after the reaction in the reaction container 3.

[0049] The input end of the data processor 7 is electrically connected to the output end of the photoelectric detector 6 and the output end of the detection mechanism. The photoelectric detector 6 transmits the detected absorbance signal to the data processor 7, and the detection mechanism transmits the sample amount signal to the data processor 7. The data processor 7 converts the sulfate content data according to the absorbance signal and the sample amount. In a specific implementation scenario, the data processor 7 is a computer.

[0050] Usage process of the above device for rapidly determining sulfate content: Take an appropriate amount of sample from the water used in polysilicon production and add it to the sample cell. The stirrer 11 stirs it evenly according to the set frequency. The metering pump 2 extracts the sample (and records the sample volume and transmits it to the data processor 7) into the reaction vessel 3. The reagent storage 4 automatically pushes the reagent into it for reaction with a push rod (the principle is the same as that of a syringe). The temperature is controlled by the temperature control tank 5, and sufficient reaction occurs at the most suitable temperature. During this process, the photoelectric detector 6 automatically collects the absorbance signal and transmits it to the data processor 7 for calculation and conversion to obtain the final sulfate content data.

[0051] Combined with the above content, this embodiment has at least the following beneficial effects:

[0052] First, this embodiment is based on spectrometry to determine the sulfate content in the water used in polysilicon production. Compared with ultraviolet spectrophotometry, it has the advantages of higher detection accuracy and more convenient operation.

[0053] Second, through the settings of the sample container 1, metering pump 2, reaction vessel 3, photoelectric detector 6 and data processor 7, the manual intervention in the whole detection process is extremely few, and the detection can be completed quickly and efficiently.

[0054] Third, through the setting of the stirrer 11, the sample in the sample container 1 can be stirred evenly, which is guaranteed to improve the objectivity of the final result.

[0055] Fourth, through the setting of the reagent storage 4, the addition of the reagent is facilitated and the efficiency of adding the reagent is improved.

[0056] Fifth, the reagent storage 4 includes a push rod and a push plug connected to each other. The push plug is in sliding and sealing fit with the inner wall of the reagent storage 4. The detection reagent can be pushed into the reaction vessel 3 through the push rod and the push plug, further improving the efficiency of adding the reagent.

[0057] Sixth, the push rod is connected to a power source such as a cylinder for convenient automatic operation, further reducing manual intervention.

[0058] Seventh, the temperature is controlled by the temperature control tank 5, and sufficient reaction occurs at the most suitable temperature, which is beneficial to improving the reaction efficiency in the reaction vessel 3, thereby further improving the detection efficiency.

[0059] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Without conflict, the embodiments of this application and the features in the embodiments can be arbitrarily combined with each other. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An apparatus for rapidly determining the sulfate content, characterized in that, Comprising: Sample container; Dosing pump, with its inlet connected to a sampling pipeline and its outlet connected to a delivery pipeline; the sampling pipeline is connected to the sample container, and the delivery pipeline is connected to the inlet of the reaction container; the dosing pump has a detection mechanism that can detect the amount of sample delivered by the dosing pump; Reaction container, into which a detection reagent can be introduced, and the detection reagent is used to react with the sample to produce a colored product; Photoelectric detector, arranged close to the reaction container, for detecting the absorbance of the colored product; Data processor, whose input end is electrically connected to the output end of the photoelectric detector and the output end of the detection mechanism.

2. The device for rapidly determining the sulfate content according to claim 1, characterized in that, A stirrer is arranged inside the sample container.

3. The device for rapidly determining the sulfate content according to claim 1, characterized in that, A flushing pipeline is arranged inside the sample container.

4. The device for rapidly determining the sulfate content according to claim 1, wherein, It further includes a reagent storage for storing the detection reagent, and the outlet of the reagent storage is connected to the reaction container.

5. The device for rapidly determining the sulfate content according to claim 4, characterized in that, There are multiple reagent storages.

6. The device for rapidly determining the sulfate content according to claim 4, wherein The reagent storage includes a push rod and a push plug connected to each other, and the push plug is in sliding and sealing fit with the inner wall of the reagent storage.

7. The device for rapidly determining the sulfate content according to claim 6, wherein The push rod is connected to a power source.

8. The device for rapidly determining the sulfate content according to claim 1, wherein The reaction container is spherical.

9. The device for rapidly determining the sulfate content according to any one of claims 1 to 7, characterized in that, A temperature control tank is arranged outside the reaction container, and the bottom of the temperature control tank has a heating mechanism.

10. The device for rapidly measuring the sulfate content according to claim 9, characterized in that, The heating power of the heating mechanism is adjustable.

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