Soil heavy metal detection pretreatment device

Abstract

The utility model relates to the technical field of soil detection devices, in particular to a soil heavy metal detection pretreatment device which comprises a treatment table, a reaction cup is arranged at the top end of the treatment table, and a leakage-proof cover plate is mounted at the top end of the reaction cup; an electric push rod drives a moving plate to move up and down, a plugging cover plate and a rotating column can be driven to move, guide holes in the surface of a guide plate facilitate guiding when the moving plate moves, an adjusting motor drives the rotating column to rotate, and a first stirring rod and a second stirring rod can be driven to rotate in a reaction cup. According to the soil treatment device, soil and a treatment solution are mixed and stirred, the soil can be crushed during stirring through crushing teeth on the outer walls of a first stirring rod and a second stirring rod, the crushed soil and the treatment solution can be fully reacted and digested conveniently, and a leakage-proof cover plate is mounted at the top end of a reaction cup, so that the leakage-proof cover plate is prevented from leaking; the top end of the reaction cup can be blocked during stirring, and the problem that a mixed sample splashes out of the reaction cup is not easily caused.

Description

Technical Field

[0001] This utility model relates to the technical field of soil testing devices, specifically a soil heavy metal detection pretreatment device. Background Technology

[0002] With the rapid progress of industrial development, the industrial applications involving heavy metals, such as batteries and electroplating, have increased dramatically, leading to increasingly serious heavy metal pollution in the soil. Heavy metals flow into the soil and are not easily degraded by microorganisms, causing significant pollution to groundwater, which in turn harms the growth of plants and animals and ultimately causes certain harm to the human body. Therefore, the detection of heavy metal content in the soil has become particularly important, as it is conducive to the effective remediation of the soil and the improvement of the ecological environment quality of the soil.

[0003] In existing technologies, soil pretreatment is required before detecting heavy metals in soil. The common pretreatment method is to put the soil into a reaction vessel, react it with the treatment solution, and then digest it. Once the soil has been digested to a certain extent, it is convenient to carry out subsequent experiments and detection. However, since soil is a solid particle, existing soil heavy metal detection pretreatment devices only promote the reaction between the soil and the treatment solution by stirring. It is difficult for the soil to fully react and digest with the treatment solution, and it is also easy to cause the mixed sample to splash out of the reaction vessel. Utility Model Content

[0004] The purpose of this invention is to provide a soil heavy metal detection pretreatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a soil heavy metal detection pretreatment device, comprising: a treatment table, a reaction cup provided at the top of the treatment table, a leak-proof cover plate installed at the top of the reaction cup, an adjusting motor installed at the top of the leak-proof cover plate, and a rotating shaft of the adjusting motor passing through the leak-proof cover plate and fixedly connected to a rotating column.

[0006] The outer wall of the rotating column is fixedly installed with a first stirring rod and a second stirring rod. Both the surface of the first stirring rod and the second stirring rod are provided with crushing teeth. A scraper is connected to the end of the second stirring rod away from the rotating column.

[0007] The top of the leak-proof cover is connected to a movable plate, the top of the movable plate is connected to an electric push rod, a fixed frame is installed on the processing table near the top of the electric push rod, a guide rod is connected to the bottom of the fixed frame, a guide plate is installed on the side wall of the movable plate, and a guide hole is opened on the surface of the guide plate near the guide rod.

[0008] Preferably, a positioning sleeve is fixedly installed on the processing table near the top of the reaction cup, and the bottom of the reaction cup is slidably inserted into the positioning sleeve.

[0009] Preferably, the longitudinal section of the leak-proof cover is T-shaped, and the bottom end of the leak-proof cover is slidably inserted into the reaction cup and has a guide groove, the inner wall of the guide groove being an arc surface.

[0010] Preferably, the adjusting motor is fixedly installed on the top of the leak-proof cover, and the rotating shaft of the adjusting motor passes through the leak-proof cover and is rotatably connected to the leak-proof cover.

[0011] Preferably, there are multiple first and second stirring rods arranged alternately, and multiple crushing teeth are fixedly installed on the surface of each first stirring rod and each second stirring rod, and each crushing tooth is conical.

[0012] Preferably, two scrapers are symmetrically arranged, with one end of each scraper in close contact with the inner wall of the reaction cup, and the other end of each scraper fixedly connected to one end of an adjacent second stirring rod.

[0013] Preferably, the fixed frame is inverted U-shaped and fixedly installed on the top of the processing table. The electric push rod is fixedly installed on the fixed frame. The output shaft of the electric push rod passes through the fixed frame and is fixedly connected to the top of the moving plate. Four connecting rods are fixedly installed between the bottom edge of the moving plate and the leak-proof cover.

[0014] Preferably, two guide plates are symmetrically arranged and fixedly installed on the side wall of the movable plate. The top ends of the two guide rods are fixedly connected to the fixing frame, and the bottom ends of the two guide rods slide through the adjacent guide holes and are fixedly installed on the positioning sleeve.

[0015] Preferably, a limiting plate is fixedly sleeved on the outer wall of the two guide rods near the reaction cup, and an elastic pad is fixedly installed on the top of each limiting plate.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention uses an electric push rod to move a movable plate up and down, which in turn moves the sealing cover and the rotating column. Guide holes on the guide plate surface facilitate guidance during the movement of the movable plate. Adjusting the motor to rotate the rotating column causes the first and second stirring rods to rotate within the reaction vessel, achieving mixing and stirring of the soil and treatment solution. The crushing teeth on the outer walls of the first and second stirring rods break up the soil during stirring, facilitating thorough reaction and digestion between the broken soil and the treatment solution. Installing a leak-proof cover at the top of the reaction vessel seals the top during stirring, preventing the mixed sample from splashing out of the reaction vessel. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 3 This is a three-dimensional schematic diagram of the internal structure of a portion of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point B.

[0022] In the diagram: 1. Processing table; 2. Positioning sleeve; 3. Reaction cup; 4. Adjusting motor; 5. Rotating column; 6. First stirring rod; 7. Crushing teeth; 8. Second stirring rod; 9. Scraper; 10. Leak-proof cover plate; 11. Guide channel; 12. Electric push rod; 13. Moving plate; 14. Guide rod; 15. Limiting plate; 16. Elastic pad; 17. Guide plate; 18. Guide hole; 19. Fixing frame; 20. Connecting rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a soil heavy metal detection pretreatment device, comprising: a treatment table 1, a reaction cup 3 at the top of the treatment table 1, a leak-proof cover 10 at the top of the reaction cup 3, an adjusting motor 4 at the top of the leak-proof cover 10, the rotating shaft of the adjusting motor 4 passing through the leak-proof cover 10 and fixedly connected to a rotating column 5; a positioning sleeve 2 is fixedly installed on the treatment table 1 near the top of the reaction cup 3, the bottom end of the reaction cup 3 is slidably inserted into the positioning sleeve 2, which can limit the reaction cup 3, making it difficult for the reaction cup 3 to move during the pretreatment process. The longitudinal section of the leak-proof cover 10 is T-shaped, the bottom end of the leak-proof cover 10 is slidably inserted into the reaction cup 3 and has a guide groove 11, the inner wall of the guide groove 11 is arc-shaped, when the mixed solution in the reaction cup 3 splashes onto the sealing cover 10, it can flow into the reaction cup 3 along the guide groove 11 and is not easy to remain on the sealing cover 10. The adjusting motor 4 is fixedly installed at the top of the leak-proof cover 10. The rotating shaft of the adjusting motor 4 passes through the leak-proof cover 10 and is rotatably connected to the leak-proof cover 10, so that the rotating column 5 can be driven to rotate by the adjusting motor 4.

[0025] A first stirring rod 6 and a second stirring rod 8 are fixedly installed on the outer wall of the rotating column 5. Both the first stirring rod 6 and the second stirring rod 8 have crushing teeth 7 on their surfaces. A scraper 9 is connected to the end of the second stirring rod 8 furthest from the rotating column 5. Several first stirring rods 6 and several second stirring rods 8 are arranged alternately. Several crushing teeth 7 are fixedly installed on the surface of each first stirring rod 6 and each second stirring rod 8. Each crushing tooth 7 is conical to facilitate soil crushing. Two scrapers 9 are symmetrically arranged. One end of each scraper 9 is tightly fitted against the inner wall of the reaction cup 3, and the other end of each scraper 9 is fixedly connected to one end of the adjacent second stirring rod 8. This allows the scrapers 9 to move along the inner wall of the reaction cup 3, scraping off the soil from the inner wall of the reaction cup 3 to prevent soil from adhering to the inner wall during stirring.

[0026] A movable plate 13 is connected to the top of the leak-proof cover 10, and an electric push rod 12 is connected to the top of the movable plate 13. A fixed frame 19 is installed on the processing table 1 near the top of the electric push rod 12, and a guide rod 14 is connected to the bottom of the fixed frame 19. A guide plate 17 is installed on the side wall of the movable plate 13, and a guide hole 18 is opened on the surface of the guide plate 17 near the guide rod 14. The fixed frame 19 is inverted U-shaped and fixedly installed on the top of the processing table 1. The electric push rod 12 is fixedly installed on the fixed frame 19. The output shaft of the electric push rod 12 passes through the fixed frame 19 and is fixedly connected to the top of the movable plate 13. Four connecting rods 20 are fixedly installed between the bottom edge of the movable plate 13 and the leak-proof cover 10, and the output end of the electric push rod 12 is slidably connected to the fixed frame 19, so as to facilitate the up and down movement of the movable plate 13 by the electric push rod 12. Two guide plates 17 are symmetrically arranged and fixedly installed on the side wall of the movable plate 13. The top ends of the two guide rods 14 are fixedly connected to the fixing frame 19, and the bottom ends of the two guide rods 14 slide through the adjacent guide holes 18 and are fixedly installed on the positioning sleeve 2, which can guide the guide plates 17. Limiting plates 15 are fixedly sleeved on the outer wall of the two guide rods 14 near the reaction cup 3. The top ends of the two limiting plates 15 are fixedly installed with elastic soft pads 16. When the sealing cover 10 moves down and is installed on the top of the reaction cup 3, the bottom end of the guide plate 17 contacts the elastic soft pad 16, reducing the hard collision between the guide plate 17 and the limiting plate 15, thereby reducing the hard collision between the sealing cover 10 and the reaction cup 3.

[0027] When this device is in operation, the reaction cup 3 is inserted into the positioning sleeve 2, and the soil to be pretreated and the treatment solution are poured into the reaction cup 3. The moving plate 13 is moved by the electric push rod 12, which in turn moves the sealing cover plate 10 and the rotating column 5. When soil pretreatment is required, the sealing cover plate 10 is moved downward by the electric push rod 12. After pretreatment, the sealing cover plate 10 is moved upward by the electric push rod 12, so that the rotating column 5 is removed from the reaction cup 3. The guide hole 18 on the surface of the guide plate 17 facilitates movement of the moving plate 13. The guide motor 4 drives the rotating column 5 to rotate, which in turn drives the first stirring rod 6 and the second stirring rod 8 to rotate inside the reaction cup 3, thus achieving mixing and stirring of the soil and the treatment solution. The crushing teeth 7 on the outer wall of the first stirring rod 6 and the second stirring rod 8 can crush the soil during stirring, which facilitates the full reaction and digestion of the crushed soil and the treatment solution. By installing the leak-proof cover 10 on the top of the reaction cup 3, the top of the reaction cup 3 can be sealed during stirring, which can prevent the mixed sample from splashing out of the reaction cup 3.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A soil heavy metal detection pretreatment device, comprising: The processing table (1) is characterized in that: a reaction cup (3) is provided at the top of the processing table (1), a leak-proof cover plate (10) is installed at the top of the reaction cup (3), an adjustment motor (4) is installed at the top of the leak-proof cover plate (10), and the rotating shaft of the adjustment motor (4) passes through the leak-proof cover plate (10) and is fixedly connected to a rotating column (5). The outer wall of the rotating column (5) is fixedly installed with a first stirring rod (6) and a second stirring rod (8). The surfaces of the first stirring rod (6) and the second stirring rod (8) are provided with breaking teeth (7). The end of the second stirring rod (8) away from the rotating column (5) is connected to a scraper (9). The top of the leak-proof cover (10) is connected to a movable plate (13), the top of the movable plate (13) is connected to an electric push rod (12), the processing table (1) is equipped with a fixed frame (19) near the top of the electric push rod (12), the bottom of the fixed frame (19) is connected to a guide rod (14), the side wall of the movable plate (13) is equipped with a guide plate (17), and the surface of the guide plate (17) near the guide rod (14) is provided with a guide hole (18).

2. The soil heavy metal detection pretreatment device according to claim 1, characterized in that: The processing table (1) is fixedly installed with a positioning sleeve (2) near the top of the reaction cup (3), and the bottom of the reaction cup (3) is slidably inserted into the positioning sleeve (2).

3. The soil heavy metal detection pretreatment device according to claim 1, characterized in that: The longitudinal section of the leak-proof cover (10) is T-shaped. The bottom end of the leak-proof cover (10) is slidably inserted into the reaction cup (3) and a guide groove (11) is provided. The inner wall of the guide groove (11) is arc-shaped.

4. The soil heavy metal detection pretreatment device according to claim 1, characterized in that: The regulating motor (4) is fixedly installed on the top of the leak-proof cover plate (10). The rotating shaft of the regulating motor (4) passes through the leak-proof cover plate (10) and is rotatably connected to the leak-proof cover plate (10).

5. The soil heavy metal detection pretreatment device according to claim 1, characterized in that: The first stirring rod (6) and the second stirring rod (8) are provided with a number of staggered arrangement. Each first stirring rod (6) and each second stirring rod (8) has a number of crushing teeth (7) fixedly installed on its surface. Each crushing tooth (7) is conical.

6. The soil heavy metal detection pretreatment device according to claim 1, characterized in that: Two scrapers (9) are symmetrically arranged. One end of each scraper (9) is in close contact with the inner wall of the reaction cup (3), and the other end of each scraper (9) is fixedly connected to one end of the adjacent second stirring rod (8).

7. The soil heavy metal detection pretreatment device according to claim 1, characterized in that: The fixed frame (19) is inverted U-shaped and fixedly installed on the top of the processing table (1). The electric push rod (12) is fixedly installed on the fixed frame (19). The output shaft of the electric push rod (12) passes through the fixed frame (19) and is fixedly connected to the top of the moving plate (13). Four connecting rods (20) are fixedly installed between the bottom edge of the moving plate (13) and the leak-proof cover plate (10).

8. The soil heavy metal detection pretreatment device according to claim 1, characterized in that: Two guide plates (17) are symmetrically arranged and fixedly installed on the side wall of the movable plate (13). The top ends of the two guide rods (14) are fixedly connected to the fixed frame (19), and the bottom ends of the two guide rods (14) slide through the adjacent guide holes (18) and are fixedly installed on the positioning sleeve (2).

9. A soil heavy metal detection pretreatment device according to claim 8, characterized in that: Both guide rods (14) are fixedly fitted with limiting plates (15) near the outer wall of the reaction cup (3), and elastic pads (16) are fixedly installed on the top of both limiting plates (15).

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