Thermal desorption separation device for mercury pollution sample analysis

Abstract

The utility model discloses a thermal desorption separation device for mercury pollution sample analysis, which comprises a mercury sample burning separation device, a plurality of groups of placing grooves are uniformly arranged at the top of the mercury sample burning separation device, long-neck ball glass tubes are arranged in the placing grooves, a bottom plate is arranged at the bottom of the mercury sample burning separation device, and a plurality of thermal desorption holes are formed in the bottom plate. A top cover is arranged at the top of the mercury sample firing and separating device; under the cooperation of the mercury sample burning and separating device, the placing groove, the top cover and the top clamping groove, a plurality of groups of test samples can be subjected to thermal desorption in the thermal desorption process, so that the experimental samples can be quickly manufactured, a long-neck ball glass tube can be effectively clamped in the heating process, the stability is improved, and the production efficiency is improved. And under the action of the bottom plate, the long-neck ball glass tube can be obliquely placed, so that the samples can be accumulated at the bottom in the placing process, and the samples are prevented from falling off in the thermal desorption process.

Description

Technical Field

[0001] The utility model relates to the technical field of sample separation, and particularly relates to a thermal desorption separation device for mercury-polluted sample analysis. Background Technique

[0002] At present, there are many methods for mercury-polluted sample analysis. For example, mercury is converted into a solution state by digestion or pyrolysis methods, and then analyzed by an atomic fluorescence spectrometer. There are also methods such as volumetric method and photometric method. For polluted samples with different concentrations, different methods or instruments should be selected. The volumetric method can select different solution nuclei indicators as the titration end point, so it is suitable for the analysis of mercury-polluted samples with different concentrations.

[0003] There is a prior art soil thermal desorption and classification treatment device with the authorization publication number of "CN218108847U", which includes a stirring and conveying structure, a heating pipe and a heat preservation shell. Multiple stirring and conveying structures are arranged at intervals in the vertical direction. The stirring and conveying structure is used for stirring and conveying the soil. The stirring and conveying structure located above conveys the soil to the stirring and conveying structure located below; the heating pipe is spirally wound and wrapped outside the stirring and conveying structure for heating the soil conveyed in the stirring and conveying structure; the heat preservation shell is wrapped outside the heating pipe. The stirring and conveying structure includes a conveying cylinder, a cylinder end cover, a rotating shaft seat, a blade rotating shaft, a driving component, a spiral blade, a feeding port, an air suction port, a discharging port and a conveying cylinder support seat. The conveying cylinder is cylindrical. The utility model can desorb different organic pollutants in the soil in a classified manner, reduce energy consumption and disposal costs, and save energy and reduce emissions.

[0004] In some experimental processes, it is necessary to detect multiple samples, but this device can only perform thermal desorption on one sample and cannot be used in some laboratories, which reduces the experimental efficiency and cannot ensure obtaining data quickly. Content of the Utility Model

[0005] The purpose of the utility model is to provide a thermal desorption separation device for mercury-polluted sample analysis to solve the problems mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A thermal desorption separation device for mercury-polluted sample analysis, including a mercury sample burning and separation device. A plurality of placement grooves are evenly arranged at the top of the mercury sample burning and separation device. A long-neck spherical glass tube is arranged inside the placement groove. A bottom plate is arranged at the bottom of the mercury sample burning and separation device. A top cover is arranged at the top of the mercury sample burning and separation device. A plurality of top clamping grooves are arranged at the bottom of the top cover.

[0007] Preferably, the bottom plate is made of an inclined surface structure, so that the placed long-neck spherical glass tube can be tilted to a certain extent, and during subsequent heating, it can prevent these soil samples from flowing out.

[0008] On both sides of the top cover, insertion plates are symmetrically arranged, and the insertion plates are higher than the plane of the top cover, so that the insertion plates can be inserted into the mercury sample burning and separating device to fix the position of the top cover, thereby preventing the top cover from shifting.

[0009] The placement groove is made of a U-shaped structure, and the long-neck spherical glass tube is adapted to the top card slot and the placement groove, which is convenient for the long-neck spherical glass tube to be clamped inside the mercury sample burning and separating device for fixation.

[0010] Both sides of the top cover are made of an inclined surface structure, and the top cover can be easily lifted through the inclined surface.

[0011] At both ends of the bottom of one side of the mercury sample burning and separating device, positive and negative electrodes are symmetrically arranged to supply power to the resistance wire for heating. On the top of one side of the mercury sample burning and separating device, there is a thermometer placement hole, so that the thermocouple thermometer can be placed at the thermometer placement hole to test the temperature inside the mercury sample burning and separating device.

[0012] Compared with the prior art, the beneficial effects of the present utility model are: the thermal desorption separation device for mercury pollution sample analysis;

[0013] Through the cooperation of the mercury sample burning and separating device, the placement groove, the top cover and the top card slot, during the thermal desorption process, multiple groups of test samples can be thermally desorbed together, ensuring that experimental samples can be quickly produced, and during the heating process, the long-neck spherical glass tube can be effectively clamped to improve stability, and through the function of the bottom plate, the long-neck spherical glass tube can be placed obliquely, so that during the placement process, it can ensure that the samples are stacked at the bottom and prevent the samples from falling during the thermal desorption process. Description of the Drawings

[0014] Figure 1 Is the three-dimensional view of the mercury sample burning and separating device of the present utility model;

[0015] Figure 2 Is the three-dimensional view of the top cover of the present utility model;

[0016] Figure 3 Is the top view of the present utility model;

[0017] Figure 4 Is the side view of the present utility model.

[0018] In the figure: 1. Mercury sample burning and separating device; 2. Placement groove; 3. Thermometer placement hole; 4. Positive and negative electrodes; 5. Bottom plate; 6. Top cover; 7. Top card slot; 8. Long-neck spherical glass tube. Detailed implementation mode

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1-4 , an embodiment provided by the present utility model: a thermal desorption separation device for mercury-polluted sample analysis, including a mercury sample burning and separation device 1. A plurality of groups of placement grooves 2 are evenly arranged at the top of the mercury sample burning and separation device 1. A long-neck spherical glass tube 8 is arranged inside the placement groove 2. The bottom of the mercury sample burning and separation device 1 is provided with a bottom plate 5, and the bottom plate 5 is made of an inclined surface structure, so that the placed long-neck spherical glass tube 8 can be tilted to a certain extent, and during the subsequent heating process, these soil samples can be prevented from flowing out. The top of the mercury sample burning and separation device 1 is provided with a top cover 6, and both sides of the top cover 6 are made of an inclined surface structure. The top cover 6 can be conveniently lifted through the inclined surface. Insertion plates are symmetrically arranged on both sides of the top cover 6, and the insertion plates are higher than the plane of the top cover 6, so that the insertion plates can be inserted into the mercury sample burning and separation device 1 to fix the position of the top cover 6, thereby preventing the top cover 6 from shifting. A plurality of groups of top clamping grooves 7 are arranged at the bottom of the top cover 6. The placement groove 2 is made of a U-shaped structure, and the long-neck spherical glass tube 8 is adapted to the top clamping grooves 7 and the placement groove 2, which is convenient for the long-neck spherical glass tube 8 to be clamped inside the mercury sample burning and separation device 1 for fixation. Positive and negative electrodes interfaces 4 are symmetrically arranged at both ends of the bottom of one side of the mercury sample burning and separation device 1 to supply power to the resistance wire for heating. A thermometer placement hole 3 is arranged at the top of one side of the mercury sample burning and separation device 1, so that a thermocouple thermometer can be placed at the thermometer placement hole 3 to test the temperature inside the mercury sample burning and separation device 1.

[0021] Working principle: During the process of sample production, first place the sample into the long-neck spherical glass tube 8, and then place the long-neck spherical glass tube 8 filled with the sample into the top clamping grooves 7 in sequence. After all the long-neck spherical glass tubes 8 are placed, cover the top cover 6 on the top of the mercury sample burning and separation device 1. At the same time, the rest of the long-neck spherical glass tube 8 is clamped inside the top clamping grooves 7, and then the top cover 6 is used to clamp the long-neck spherical glass tube 8 to ensure the stability of the long-neck spherical glass tube 8. Then place the thermocouple thermometer into the thermometer placement hole 3 to detect the inside of the mercury sample burning and separation device 1. At the same time, the heating device inside the mercury sample burning and separation device 1 heats the sample, so that the soil sample undergoes thermal desorption. After heating is completed, open the top cover 6 and then take out the long-neck spherical glass tube 8.

[0022] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights involved.

[0023] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A thermal desorption separation device for analyzing mercury contaminated samples, comprising a mercury sample burning separation device (1), characterized in that: The top of the mercury sample burning and separating device (1) is evenly provided with a plurality of groups of placement grooves (2), the interior of the placement grooves (2) is provided with a long-necked spherical glass tube (8), the bottom of the mercury sample burning and separating device (1) is provided with a bottom plate (5), the top of the mercury sample burning and separating device (1) is provided with a top cover (6), and the bottom of the top cover (6) is provided with a plurality of groups of top card slots (7).

2. A thermal desorption separation device for mercury contaminated sample analysis according to claim 1, characterized in that: The bottom plate (5) is made of an inclined surface structure.

3. The thermal desorption separation device for mercury contaminated sample analysis according to claim 1, characterized in that: Insertion plates are symmetrically arranged on both sides of the top cover (6), and the insertion plates are higher than the plane of the top cover (6).

4. The thermal desorption separation device for mercury contaminated sample analysis according to claim 1, characterized in that: The placement groove (2) is made of a U-shaped structure, and the long-necked ball glass tube (8) is mutually compatible with the top clamping groove (7) and the placement groove (2).

5. The thermal desorption separation device for mercury contaminated sample analysis according to claim 1, characterized in that: Both sides of the top cover (6) are made of inclined surface structures.

6. The thermal desorption separation device for mercury contaminated sample analysis according to claim 1, characterized in that: Positive and negative electrode interfaces (4) are symmetrically arranged at both ends of the bottom of one side of the mercury sample burning and separating device (1), and a thermometer placement hole (3) is arranged at the top of one side of the mercury sample burning and separating device (1).

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