A temperature reagent structure for pretreatment of soil chromium detection

Abstract

This invention relates to the field of soil heavy metal content detection technology, and provides a temperature reagent structure for pretreatment of soil chromium detection. The structure includes a main body comprising a heating container, a heating resistance wire, and a mounting frame; a placement structure comprising a placement plate, a sealing plate, a connecting frame, and an electric telescopic rod. The sealing plate is placed on the upper surface of the placement plate, and the connecting frame is also placed on the upper surface of the sealing plate. The two ends of the electric telescopic rod are respectively connected to the mounting frame and the connecting frame. The placement plate has a placement cavity. In this invention, the container is placed in the placement cavity. The heating resistance wire, after being energized, heats the water to a predetermined temperature. The heat is conducted to the container via the placement plate to increase the leaching rate of chromium in the sample. The electric telescopic rod, after activation, moves the connecting frame to ensure more uniform mixing of the reagent and sample, preventing localized overheating or sample adhesion to the container wall. Workers do not need to touch the container, reducing the risk of burns.

Description

Technical Field

[0001] This invention belongs to the field of soil heavy metal content detection technology, and particularly relates to a temperature reagent structure for pretreatment of soil chromium detection. Background Technology

[0002] Chromium can enter the soil through industrial emissions, wastewater irrigation, and the use of chemical fertilizers and pesticides. It can then be easily oxidized into highly toxic soluble hexavalent chromium, which contaminates the soil and migrates into groundwater or plants. Therefore, soil chromium testing is an important part of environmental monitoring and pollution assessment.

[0003] Typically, before formally determining the chromium content in soil, a series of pretreatment steps are required for soil samples to improve the accuracy and reliability of the test. Simply put, workers air-dry, grind, and sieve the soil samples to obtain uniform particles. Then, specific reagents (such as alkaline solutions) are used to extract the chromium from the soil. During the extraction process, temperature needs to be controlled to optimize the reaction conditions, because some reagents need to be stored or reacted at specific temperatures to improve the dissolution rate of chromium.

[0004] In existing technologies, soil samples mixed with solvents are placed on a heating plate, and during the heating process, the samples need to be shaken or stirred periodically to avoid local overheating or the samples adhering to the container walls. However, this method not only makes it difficult to ensure that the samples in different parts of the container are heated evenly, but also makes it easy for users to be burned by the container when shaking. Therefore, a temperature reagent structure for soil chromium detection pretreatment is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a temperature reagent structure for pretreatment of soil chromium detection, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A temperature reagent structure for pretreatment of soil chromium detection includes:

[0008] The main body of the equipment includes a heating container, a heating resistance wire, and a mounting frame. The heating resistance wire is installed at the lower end inside the heating container, and the mounting frame is fixedly installed on the upper surface of the heating container.

[0009] The placement structure includes a shelf, a sealing plate, a connecting frame, and an electric telescopic rod. The sealing plate is placed on the upper surface of the shelf, and the connecting frame is placed on the upper surface of the sealing plate. The shelf, the sealing plate, and the connecting frame are detachably connected to each other. The two ends of the electric telescopic rod are respectively connected to the mounting frame and the connecting frame. The shelf has multiple placement cavities spaced apart. The shelf is made of a heat-conducting material. The shelf is placed inside the heating container and positioned at a predetermined distance above the heating resistance wire.

[0010] In a further technical solution, the placement structure further includes multiple fixing columns, the connecting frame has a first fixing hole, the sealing plate has a second fixing hole, the placement plate has multiple threaded cylinders, the heating container has multiple sliding grooves, the fixing columns are inserted into the first fixing hole and the second fixing hole, and are threadedly connected to the threaded cylinders, and the threaded cylinders are slidably placed in the sliding grooves.

[0011] In a further technical solution, the bottom wall of the heating container has a plurality of spaced-apart fixed cylinders, and the lower end face of the placement plate has a plurality of spaced-apart sliding pillars and a plurality of springs. Each sliding pillar is slidably inserted into each of the fixed cylinders, and each spring is placed in each of the fixed cylinders. The springs are connected to the inner wall of the fixed cylinder and the lower end of the sliding pillar.

[0012] In a further technical solution, the placement structure also includes multiple storage frames, each of which is placed in each of the placement cavities, and the storage frames are configured as U-shaped.

[0013] In a further technical solution, the placement structure further includes multiple plug-in plates and connecting plates. The multiple plug-in plates are connected to the connecting plates in parallel. The sealing plate is hollow and has multiple pairs of spaced-apart plug-in slots. The upper end of each storage frame is inserted into each pair of plug-in slots and fits against the inner wall of the sealing plate. The upper end of the storage frame has a fixing slot, and the plug-in plate is inserted into the fixing slot. The plug-in plate is placed inside the hollow sealing plate.

[0014] In a further technical solution, the placement structure further includes a rotating column, the connecting plate has a threaded hole, the sealing plate has a third fixing hole, the rotating column is inserted into the third fixing hole, and is threadedly connected to the threaded hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model features a placement structure comprising a shelf, a sealing plate, a connecting frame, and an electric telescopic rod. The sealing plate rests on the upper surface of the shelf, and the connecting frame rests on the upper surface of the sealing plate. The shelf, sealing plate, and connecting frame are detachably connected to each other. The two ends of the electric telescopic rod are respectively connected to the mounting frame and the connecting frame. The shelf has multiple spaced placement cavities and is made of a heat-conducting material. The shelf is placed inside a heating container at a predetermined distance above the heating resistance wire. In use, the heating container contains clean water, the shelf is placed inside the heating container, and the threaded cylinder is placed in a sliding groove. Workers separate containers containing soil samples and reagents... Do not place in each placement chamber; the heating resistance wire, after being powered on, heats the water in the heating container to the predetermined temperature; according to the effect of heat conduction, the heat in the heated water is conducted through the placement plate to the container in the placement chamber to improve the dissolution rate of chromium in the sample, and the container is heated evenly through water bath heating; after a period of time, the activated electric telescopic rod drives the connecting frame to move up and down along the axis of the electric telescopic rod, thereby moving the container in the placement chamber up and down, so that the reagent and sample in the container are mixed more evenly, avoiding local overheating or sample adhering to the container wall, and at the same time, the worker does not need to touch the container, reducing the risk of being burned;

[0017] This utility model comprises a storage frame, a plug-in plate, a connecting plate, and a rotating column. Each storage frame is placed in a separate storage cavity and is U-shaped. Multiple plug-in plates are connected parallel to each other to the connecting plate. The sealing plate is hollow and has multiple pairs of spaced-apart plug-in slots. The upper end of each storage frame is inserted into each pair of plug-in slots and fits against the inner wall of the sealing plate. The upper end of each storage frame has a fixing slot, into which the plug-in plates are inserted. The connecting plate has a threaded hole, and the sealing plate has a third fixing hole. The rotating column is inserted into the third fixing hole and threadedly connected to the threaded hole. Next, the worker first places the container containing the soil sample and reagents inside the storage frame, then places the sealing plate at the upper end of the storage frame, ensuring that the upper end of the storage frame is inserted into the insertion slot; then, the insertion plate is inserted into the hollow sealing plate so that the insertion plate is inserted into the fixing slot at the upper end of the storage frame, until the threaded hole on the connecting plate and the third fixing hole are aligned; then the storage frame and the container inside it are placed in each placement cavity; finally, the fixing column is rotated to connect with the threaded cylinder; in this way, by setting up the storage frame, it is easy for workers to remove the container from the placement cavity, optimizing the operation process.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial exploded view of the present invention;

[0021] Figure 3 This is a cross-sectional view of the present invention;

[0022] Figure 4 This is a partial exploded view of the placement structure of this utility model.

[0023] In the diagram: 1. Main body of the equipment; 11. Heating container; 111. Slide groove; 112. Fixed cylinder; 12. Heating resistance wire; 13. Mounting frame; 2. Placement structure; 21. Storage plate; 211. Placement cavity; 212. Threaded cylinder; 213. Sliding column; 214. Spring; 22. Sealing plate; 221. Second fixing hole; 222. Insertion groove; 223. Third fixing hole; 23. Connecting frame; 231. First fixing hole; 24. Electric telescopic rod; 25. Fixed column; 26. Storage frame; 261. Fixed groove; 27. Insertion plate; 28. Connecting plate; 281. Threaded hole; 29. ​​Rotating column. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] like Figures 1 to 4 As shown, this embodiment of the present invention provides a temperature reagent structure for pretreatment of soil chromium detection, comprising:

[0027] The main body of the equipment 1 includes a heating container 11, a heating resistance wire 12, and a mounting frame 13. The heating resistance wire 12 is installed at the lower end inside the heating container 11, and the mounting frame 13 is fixedly installed on the upper end face of the heating container 11.

[0028] The placement structure 2 includes a placement plate 21, a sealing plate 22, a connecting frame 23, and an electric telescopic rod 24. The sealing plate 22 is placed on the upper end face of the placement plate 21, and the connecting frame 23 is placed on the upper end face of the sealing plate 22. The placement plate 21, the sealing plate 22, and the connecting frame 23 are detachably connected to each other. The two ends of the electric telescopic rod 24 are respectively connected to the mounting frame 13 and the connecting frame 23. The placement plate 21 is provided with multiple placement cavities 211 at intervals. The placement plate 21 is made of heat-conducting material. The placement plate 21 is placed inside the heating container 11 and is placed at a predetermined distance above the heating resistance wire 12.

[0029] In this embodiment, during use, the heating container 11 contains clean water, the placement plate 21 is placed inside the heating container 11, and the threaded cylinder 212 is placed in the slide groove 111. Workers place containers containing soil samples and reagents into each placement cavity 211. The heating resistance wire 12, after being energized, heats the clean water in the heating container 11 to a predetermined temperature. According to the heat conduction effect, the heat in the heated clean water is conducted to the container in the placement cavity 211 through the placement plate 21 to increase the dissolution rate of chromium in the sample. The container is heated evenly through water bath heating. After a period of time, the activated electric telescopic rod 24 drives the connecting frame 23 to move up and down along the axis of the electric telescopic rod 24, thereby moving the container in the placement cavity 211 up and down to make the reagents and samples in the container mix more evenly, avoiding local overheating or sample adhesion to the container wall. At the same time, workers do not need to touch the container, reducing the risk of being burned.

[0030] Specifically, the placement structure 2 also includes multiple fixing posts 25, the connecting frame 23 has a first fixing hole 231, the sealing plate 22 has a second fixing hole 221, the placement plate 21 has multiple threaded cylinders 212, the heating container 11 has multiple sliding grooves 111, the fixing posts 25 are inserted into the first fixing hole 231 and the second fixing hole 221, and are threadedly connected to the threaded cylinders 212, and the threaded cylinders 212 are slidably placed in the sliding grooves 111;

[0031] In this embodiment, the sealing plate 22 is placed on the upper surface of the shelf 21, and the fixing post 25 is inserted into the first fixing hole 231 and the second fixing hole 221, and the fixing post 25 is rotated until it is threadedly connected to the threaded cylinder 212; in this way, by setting the fixing post 25, the connecting frame 23, the sealing plate 22 and the shelf 21 are fixedly connected.

[0032] Specifically, the bottom wall of the heating container 11 has a plurality of spaced fixed cylinders 112, and the lower end face of the shelf 21 has a plurality of spaced sliding pillars 213 and a plurality of springs 214. Each sliding pillar 213 is slidably inserted into each fixed cylinder 112, and each spring 214 is placed in each fixed cylinder 112. The spring 214 is connected to the inner wall of the fixed cylinder 112 and the lower end of the sliding pillar 213.

[0033] In this embodiment, as the electric telescopic rod 24 drives the shelf 21 to move up and down, the sliding column 213 moves up and down in the fixed cylinder 112. At this time, the spring 214 is continuously stretched or contracted. By setting the spring 214, a buffering effect is achieved.

[0034] Specifically, the placement structure 2 also includes a plurality of storage frames 26, each of which is placed in each placement cavity 211, and the storage frames 26 are configured as U-shaped.

[0035] Specifically, the placement structure 2 also includes multiple plug-in plates 27 and connecting plates 28. The multiple plug-in plates 27 are connected to the connecting plates 28 in parallel with each other. The sealing plate 22 is hollow and has multiple pairs of spaced plug-in slots 222. The upper end of each storage frame 26 is plugged into each pair of plug-in slots 222 and fits against the inner wall of the sealing plate 22. The upper end of the storage frame 26 has a fixing slot 261. The plug-in plates 27 are plugged into the fixing slots 261 and placed inside the hollow sealing plate 22.

[0036] Specifically, the placement structure 2 also includes a rotating column 29, a connecting plate 28 having a threaded hole 281, a sealing plate 22 having a third fixing hole 223, the rotating column 29 being inserted into the third fixing hole 223 and threadedly connected to the threaded hole 281;

[0037] In this embodiment, the worker first places the container containing the soil sample and reagents inside the storage frame 26, then places the sealing plate 22 on the upper end of the storage frame 26, ensuring that the upper end of the storage frame 26 is inserted into the insertion slot 222; subsequently, the insertion plate 27 is inserted into the hollow sealing plate 22, so that the insertion plate 27 is inserted into the fixing slot 261 on the upper end of the storage frame 26, until the threaded hole 281 on the connecting plate 28 and the third fixing hole 223 are aligned; then the storage frame 26 and the container inside it are placed in each placement cavity 211; finally, the fixing post 25 is rotated until it is threadedly connected to the threaded cylinder 212; in this way, by setting the storage frame 26, it is convenient for the worker to take out the container from the placement cavity 211, thus optimizing the operation process.

[0038] The working principle of this utility model is as follows:

[0039] When in use, the heating container 11 contains clean water, the shelf 21 is placed inside the heating container 11, and the threaded cylinder 212 is placed in the slide groove 111.

[0040] In one embodiment, the worker places containers containing soil samples and reagents into each placement chamber 211; then, the sealing plate 22 is placed on the upper surface of the placement plate 21, and the fixing post 25 is inserted into the first fixing hole 231 and the second fixing hole 221, and the fixing post 25 is rotated until it is threadedly connected to the threaded cylinder 212; in this way, by setting the fixing post 25, the connecting frame 23, the sealing plate 22 and the placement plate 21 are fixedly connected.

[0041] Subsequently, the heating resistance wire 12, after being powered on, heats the water in the heating container 11 to a predetermined temperature. According to the heat conduction effect, the heat in the heated water is conducted through the placement plate 21 to the container in the placement cavity 211 to increase the dissolution rate of chromium in the sample. The container is also heated evenly by water bath heating.

[0042] Furthermore, after a period of time, the activated electric telescopic rod 24 drives the connecting frame 23 to move up and down along the axis of the electric telescopic rod 24, thereby driving the container in the placement cavity 211 to move up and down, so that the reagents and samples in the container are mixed more evenly, avoiding local overheating or samples adhering to the container wall. At the same time, workers do not need to touch the container, reducing the risk of being burned.

[0043] In another embodiment, the worker first places the container containing the soil sample and reagents inside the storage frame 26, then places the sealing plate 22 on the upper end of the storage frame 26, ensuring that the upper end of the storage frame 26 is inserted into the insertion slot 222; subsequently, the insertion plate 27 is inserted into the hollow sealing plate 22, so that the insertion plate 27 is inserted into the fixing slot 261 on the upper end of the storage frame 26, until the threaded hole 281 on the connecting plate 28 and the third fixing hole 223 are aligned; then the storage frame 26 and the container inside it are placed in each placement cavity 211; finally, the fixing post 25 is rotated until it is threadedly connected to the threaded cylinder 212; in this way, by setting the storage frame 26, it is convenient for the worker to take out the container from the placement cavity 211, thus optimizing the operation process.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A temperature reagent structure for pretreatment of soil chromium detection, characterized in that, include: The main body of the equipment (1) includes a heating container (11), a heating resistance wire (12) and a mounting frame (13). The heating resistance wire (12) is installed at the lower end inside the heating container (11), and the mounting frame (13) is fixedly installed on the upper surface of the heating container (11). The placement structure (2) includes a placement plate (21), a sealing plate (22), a connecting frame (23), and an electric telescopic rod (24). The sealing plate (22) is placed on the upper surface of the placement plate (21), and the connecting frame (23) is placed on the upper surface of the sealing plate (22). The placement plate (21), the sealing plate (22), and the connecting frame (23) are detachably connected to each other. The two ends of the electric telescopic rod (24) are respectively connected to the mounting frame (13) and the connecting frame (23). The placement plate (21) is provided with multiple placement cavities (211) at intervals. The placement plate (21) is made of heat-conducting material. The placement plate (21) is placed inside the heating container (11) and is placed at a predetermined distance above the heating resistance wire (12).

2. The temperature reagent structure for pretreatment of soil chromium detection according to claim 1, characterized in that: The placement structure (2) further includes multiple fixing posts (25), the connecting frame (23) has a first fixing hole (231), the sealing plate (22) has a second fixing hole (221), the placement plate (21) has multiple threaded cylinders (212), the heating container (11) has multiple sliding grooves (111), the fixing post (25) is inserted into the first fixing hole (231) and the second fixing hole (221), and is threadedly connected to the threaded cylinder (212), the threaded cylinder (212) is slidably placed in the sliding groove (111).

3. The temperature reagent structure for pretreatment of soil chromium detection according to claim 2, characterized in that: The bottom wall of the heating container (11) has a plurality of spaced fixed cylinders (112), and the lower end face of the shelf (21) has a plurality of spaced sliding columns (213) and a plurality of springs (214). Each sliding column (213) is slidably inserted into each fixed cylinder (112), and each spring (214) is placed in each fixed cylinder (112). The spring (214) is connected to the inner wall of the fixed cylinder (112) and the lower end of the sliding column (213).

4. The temperature reagent structure for pretreatment of soil chromium detection according to claim 3, characterized in that: The placement structure (2) also includes a plurality of storage frames (26), each of the storage frames (26) being placed in each of the placement cavities (211), and the storage frames (26) being configured as U-shaped.

5. The temperature reagent structure for pretreatment of soil chromium detection according to claim 4, characterized in that: The placement structure (2) further includes multiple plug-in plates (27) and connecting plates (28). The multiple plug-in plates (27) are connected to the connecting plates (28) in parallel. The sealing plate (22) is hollow. The sealing plate (22) has multiple pairs of spaced plug-in slots (222). The upper end of each of the storage frames (26) is inserted into each pair of plug-in slots (222) and fits against the inner wall of the sealing plate (22). The upper end of the storage frame (26) has a fixing slot (261). The plug-in plate (27) is inserted into the fixing slot (261). The plug-in plate (27) is placed inside the hollow sealing plate (22).

6. The temperature reagent structure for pretreatment of soil chromium detection according to claim 5, characterized in that: The placement structure (2) further includes a rotating column (29), the connecting plate (28) has a threaded hole (281), the sealing plate (22) has a third fixing hole (223), the rotating column (29) is inserted into the third fixing hole (223) and threadedly connected to the threaded hole (281).

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