Soil detection equipment based on heavy metal pollution

Abstract

The utility model relates to the field of soil detection equipment, in particular to soil detection equipment based on heavy metal pollution, and aims to solve the problem that the accuracy of next batch of soil detection is reduced due to the fact that residues still exist on the inner wall of a mixing tank after mixing and discharging. One side of the mixing tank is communicated with a liquid inlet pipe, the other side of the mixing tank is communicated with a feeding pipe, and the bottom of the mixing tank is communicated with a discharging pipe; the top of the mixing tank is rotationally connected with a stirring shaft; an impurity removal hole is formed in the top of the mixing tank, a flow guide assembly is connected in the mixing tank, and the impurity removal hole is connected with the flow guide assembly through a pipeline; the stirring shaft is connected with a residue removing assembly, and the residue removing assembly is used for removing residues on the inner wall of the mixing tank. The soil detection equipment has the effect of improving the detection precision of the soil detection equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of soil detection equipment, in particular to a soil detection equipment based on heavy metal pollution. BACKGROUND

[0002] Heavy metals generally refer to those metal elements with an atomic density of more than 5 g / cm3. There are about 45 such elements in nature, including copper, lead, zinc, manganese, iron, nickel, vanadium, titanium, mercury, tungsten, aluminum, gold and silver commonly seen in our daily life. Although some heavy metals such as manganese and zinc are trace elements necessary for normal life activities of organisms, they play an indispensable role in maintaining the physiological functions of organisms. However, most heavy metals, such as lead and mercury, are not necessary for life activities, and they are toxic to the human body when their concentration exceeds a certain threshold, which can cause a series of health problems.

[0003] In the field of environmental pollution, heavy metal pollution is a particularly prominent problem, especially in terms of soil pollution. Among inorganic pollutants in soil, heavy metal pollution is particularly serious, mainly because heavy metals are not easily decomposed by soil microorganisms. This characteristic leads to the accumulation of heavy metals in the soil, and over time, these heavy metals can be transformed into more toxic methyl compounds. In addition, heavy metals can also be transmitted through the food chain and accumulate in the human body at harmful concentrations, thereby posing a serious threat to human health. For example, heavy metals such as mercury, cadmium, lead, copper, chromium, nickel and zinc are common soil heavy metal pollutants, and their presence not only disrupts the ecological balance of the soil, but also can enter the human body through crops and affect human health.

[0004] In order to reduce the impact of heavy metal pollution on the environment and human health, regular heavy metal detection of soil is essential for the ecological environment; portable detection equipment needs to mix soil and dissolving liquid after use, then discharge and detect, but there are still residues on the inner wall of the mixing tank after mixing and discharging, which reduces the accuracy of the next batch of soil detection, so it needs to be improved. CONTENT OF THE INVENTION

[0005] In order to improve the detection accuracy of the soil detection equipment, the present application provides a soil detection equipment based on heavy metal pollution.

[0006] The soil detection equipment based on heavy metal pollution provided by the present application adopts the following technical scheme:

[0007] The application discloses a soil detection equipment based on heavy metal pollution, which comprises a mixing tank, a liquid inlet pipe is communicated with one side of the mixing tank, a material inlet pipe is communicated with the other side of the mixing tank, a material outlet pipe is communicated with the bottom of the mixing tank, a stirring shaft is rotatably connected to the top of the mixing tank, a dedusting hole is arranged on the top of the mixing tank, a flow guide assembly is connected to the mixing tank, the dedusting hole is connected with the flow guide assembly through a pipeline, a residual removal assembly is connected to the stirring shaft, and the residual removal assembly is used for removing residues on the inner wall of the mixing tank.

[0008] By adopting the above technical scheme, the liquid inlet pipe is communicated with one side of the mixing tank for adding a dissolving solution, the material inlet pipe is communicated with the other side of the mixing tank for adding a soil sample, and the material outlet pipe is communicated with the bottom of the mixing tank for conveniently discharging the mixed solution. The dedusting hole on the top of the mixing tank cooperates with the flow guide assembly to effectively remove residues after mixing, thereby ensuring the purity of the detection sample. The residual removal assembly on the stirring shaft removes residues on the inner wall of the mixing tank, thereby reducing residues left by previous operations, avoiding cross contamination, and significantly improving the detection accuracy of the soil detection equipment.

[0009] Preferably, the residual removal assembly comprises a plurality of residual removal connecting rods and a plurality of residual removal plates, one end of each of the residual removal connecting rods is connected to the stirring shaft, the other end of the residual removal connecting rod is connected to the corresponding residual removal plate, and the residual removal plate is attached to the inner wall of the mixing tank.

[0010] By adopting the above technical scheme, the residual removal connecting rods and the residual removal plates in the residual removal assembly can effectively remove residues on the inner wall of the mixing tank. Specifically, one end of each of the residual removal connecting rods is connected to the stirring shaft, and the other end is connected to the corresponding residual removal plate, so that the residual removal plate can closely adhere to the inner wall of the mixing tank during stirring, thereby realizing mechanical scraping of residues on the inner wall. This design significantly reduces the amount of residues of the mixed soil sample and the dissolving solution on the inner wall of the mixing tank, thereby improving the accuracy of the detection results of subsequent batches of soil.

[0011] Preferably, adjacent residual removal connecting rods in the height direction are staggered.

[0012] By adopting the above technical scheme, the staggered residual removal connecting rods can ensure that the residual removal plate covers the inner wall of the mixing tank more comprehensively during rotation of the stirring shaft. This design effectively reduces the accumulation area of residues on the inner wall of the mixing tank, so that cleaning after each detection is more thorough, thereby significantly improving the detection accuracy of the equipment during continuous use. Specifically, the staggered arrangement of adjacent residual removal connecting rods optimizes the residual removal path, avoids the cleaning blind area caused by linear arrangement, and further improves the reliability of the soil detection results.

[0013] Preferably, the residual removal plate is provided with two inclined surfaces in the direction close to the inner wall of the mixing tank, the two inclined surfaces form a residual removal line, and the residual removal plate forms a line-plane contact with the inner wall of the mixing tank.

[0014] By adopting the technical scheme, the two inclined surfaces formed by the two inclined surfaces of the residual removal plate close to the inner wall of the mixing tank form a line-surface contact between the residual removal plate and the inner wall of the mixing tank. This design can significantly improve the cleaning effect of the residual removal plate on the inner wall of the mixing tank, reduce the possibility of residual attachment on the inner wall of the mixing tank after mixing, and effectively improve the detection accuracy of the soil detection equipment. Specifically, compared with the traditional overall contact mode, the line-surface contact mode can more concentratedly apply force to the local area of the inner wall of the mixing tank, further enhancing the ability to remove residues.

[0015] Preferably, the residual removal connecting rod is arranged at multiple angles, and the residual removal connecting rod is arranged in a wave shape.

[0016] By adopting the technical scheme, the residual removal connecting rod is arranged at multiple angles and in a wave shape, which can increase the flexibility and coverage of the residual removal connecting rod during rotation. This design enables the residual removal plate to assist in stirring when rotating with the stirring shaft.

[0017] Preferably, the flow guide assembly comprises a flow distribution ring, a plurality of flow distribution pipes and a plurality of pressure spray heads, the flow distribution ring is installed on the top wall of the mixing tank, the flow distribution ring is connected to the impurity removal hole through a pipeline, one end of each of the plurality of flow distribution pipes is in communication with the flow distribution ring, and the other end is in communication with a corresponding pressure spray head; the pressure spray head sprays the dissolving liquid towards the inner wall of the mixing tank.

[0018] By adopting the technical scheme, the cooperation of the flow distribution ring, the flow distribution pipe and the pressure spray head can effectively realize the uniform distribution and spraying of the dissolving liquid. Specifically, the flow distribution ring as the core component of liquid distribution ensures that the dissolving liquid from the impurity removal hole can flow uniformly into each flow distribution pipe, and then be sprayed by the pressure spray head at a specific angle towards the inner wall of the mixing tank, thereby forming a strong flushing effect, reducing the possibility of residual attachment on the inner wall of the mixing tank after mixing. This design significantly improves the accuracy of subsequent soil detection and avoids cross-contamination problems caused by residual substances.

[0019] Preferably, the spray of the pressure spray head is distributed in a fan shape, and the spray ranges of the plurality of pressure spray heads form an analog circle.

[0020] By adopting the technical scheme, the fan-shaped distribution of the spray of the pressure spray head can expand the coverage area of the dissolving liquid, so that the dissolving liquid is sprayed more uniformly on the inner wall of the mixing tank, effectively reducing the residual attachment after mixing. At the same time, the spray ranges of the plurality of pressure spray heads form an analog circle, which further ensures that each area of the inner wall can be fully washed, significantly improving the cleaning effect of the soil detection equipment, thereby improving the accuracy of subsequent soil detection.

[0021] Preferably, the bottom of the mixing tank is inclined, and the bottom of the mixing tank is inclined downward towards the discharge pipe.

[0022] By adopting the technical scheme, the bottom of the mixing tank is inclined and inclined downward toward the discharge pipe, so that the gravity can be effectively utilized to facilitate the smooth discharge of the mixed substances and reduce the residence time of the residues in the mixing tank. This design significantly reduces the risk of cross-contamination caused by previous residues in the subsequent detection process, thereby improving the overall detection accuracy of the soil detection equipment.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The mixing tank is connected to the liquid inlet pipe on one side for adding the dissolving solution, and is connected to the feed pipe on the other side for adding the soil sample. The bottom is connected to the discharge pipe for easy discharge of the mixed solution. The impurity removal hole at the top of the mixing tank cooperates with the flow guide assembly to effectively remove the residues after mixing, ensuring the purity of the detection sample. The residue removal assembly on the stirring shaft removes the residues on the inner wall of the mixing tank, reducing the residues left by the previous operation and avoiding cross-contamination, thereby significantly improving the detection accuracy of the soil detection equipment.

[0025] 2. The residue removal plate is provided with two inclined surfaces forming a residue removal line close to the inner wall of the mixing tank, so that the residue removal plate forms a line-surface contact with the inner wall of the mixing tank. This design can significantly improve the cleaning effect of the residue removal plate on the inner wall of the mixing tank, reduce the possibility of residues adhering to the inner wall of the mixing tank after mixing, and thereby effectively improve the detection accuracy of the soil detection equipment. Specifically, the line-surface contact mode can more concentratedly apply force to the local area of the inner wall of the mixing tank compared to the traditional overall contact mode, further enhancing the ability to remove residues.

[0026] 3. The flow dividing ring is the core component of liquid distribution, ensuring that the dissolving solution from the impurity removal hole can uniformly flow into each flow dividing pipe, and then be sprayed by the pressure spray head at a specific angle toward the inner wall of the mixing tank, thereby forming a strong flushing effect and reducing the possibility of residues adhering to the inner wall of the mixing tank after mixing. This design significantly improves the accuracy of subsequent soil detection and avoids the problem of cross-contamination caused by residues. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of a soil detection equipment based on heavy metal pollution in an embodiment of the present application.

[0028] Figure 2 is a structural schematic diagram of a residue removal plate in an embodiment of the present application.

[0029] Explanation of reference signs: 1, mixing tank; 11, liquid inlet pipe; 12, feed pipe; 13, discharge pipe; 14, stirring shaft; 15, impurity removal hole; 2, flow guide assembly; 21, flow distribution ring; 22, flow distribution pipe; 23, pressure nozzle; 3, residue removal assembly; 31, residue removal connecting rod; 32, residue removal plate; 321, inclined surface; 322, residue removal line. DETAILED DESCRIPTION

[0030] The following will be described in detail with reference to the accompanying drawings Figures 1-2 The present application is further described in detail.

[0031] The embodiments of the present application disclose a soil detection device based on heavy metal pollution. Referring to Figure 1 The soil detection device based on heavy metal pollution comprises a mixing tank 1, a dissolving box is installed on one side of the mixing tank 1, and a dissolving solution is stored in the dissolving box; a liquid inlet pipe 11 is communicated with one side of the mixing tank 1, the liquid inlet pipe 11 is communicated with the dissolving box; a feed pipe 12 is communicated with the other side of the mixing tank 1, a discharge pipe 13 is communicated with the bottom of the mixing tank 1, the bottom of the mixing tank 1 is arranged to be inclined, and the bottom of the mixing tank 1 is arranged to be inclined downward toward the discharge pipe 13; and a stirring shaft 14 is rotationally connected to the top of the mixing tank 1.

[0032] An impurity removal hole 15 is arranged at the top of the mixing tank 1, a flow guide assembly 2 is connected in the mixing tank 1, and the impurity removal hole 15 is connected with the flow guide assembly 2 through a pipeline; a residue removal assembly 3 is connected to the stirring shaft 14, and the residue removal assembly 3 performs residue removal operation on the inner wall of the mixing tank 1.

[0033] The liquid inlet pipe 11 communicated with one side of the mixing tank 1 is used for adding the dissolving solution, the feed pipe 12 communicated with the other side of the mixing tank 1 is used for adding the soil sample, and the discharge pipe 13 communicated with the bottom of the mixing tank 1 is convenient for discharging the mixed solution. The impurity removal hole 15 at the top of the mixing tank 1 cooperates with the flow guide assembly 2, which can effectively remove the residue after mixing, and ensure the purity of the detection sample. The residue removal assembly 3 on the stirring shaft 14 performs residue removal operation on the inner wall of the mixing tank 1, reduces the residue left by the previous operation, avoids cross contamination, and thus significantly improves the detection accuracy of the soil detection device.

[0034] Referring to Figure 1 and Figure 2 The residue removal assembly 3 comprises a plurality of residue removal connecting rods 31, one end of each of the plurality of residue removal connecting rods 31 is fixedly connected to the stirring shaft 14 through welding, the other end of each residue removal connecting rod 31 is connected with one residue removal plate 32, and each residue removal plate 32 can be attached to the inner wall of the mixing tank 1.

[0035] The adjacent residue removal connecting rods 31 in the height direction are arranged in a staggered manner. The residue removal plate 32 is provided with two inclined surfaces 321 in the direction close to the inner wall of the mixing tank 1, the two inclined surfaces 321 form a residue removal line 322, and the residue removal plate 32 forms a line-surface contact with the inner wall of the mixing tank 1. The residue removal connecting rod 31 is arranged at multiple angles, and the residue removal connecting rod 31 is arranged in a wave shape.

[0036] Several residual removal links 31 are connected to the stirring shaft 14 at one end and connected to the corresponding residual removal plates 32 at the other end, so that the residual removal plates 32 can move closely to the inner wall of the mixing tank 1 during stirring, thereby realizing the mechanical scraping effect of the residual substances on the inner wall. This design significantly reduces the residual amount of the mixed soil sample and the dissolved liquid on the inner wall of the mixing tank 1, thereby improving the accuracy of the subsequent batch soil detection results.

[0037] The residual removal links 31 are arranged at multiple angles and are wave-shaped, which can increase the flexibility and coverage of the residual removal links 31 during rotation. This design enables the residual removal plates 32 to assist in stirring when rotating with the stirring shaft 14.

[0038] Referring to Figure 1 , then look at the flow guide assembly 2 part, the main body is composed of a flow divider ring 21, several flow divider pipes 22 and a plurality of pressure nozzles 23. The flow divider ring 21 is installed on the tank top and is connected to the aforementioned impurity removal hole 15 through a special line to ensure that the external cleaning medium can be smoothly introduced into the system to play its role. Then the flow divider ring 21 is connected to the flow divider pipe 22, and the small pressure nozzles 23 arranged at the designated position are delivered in turn to release energy. These pressure nozzles 23 are precisely positioned to apply a powerful water flow impact to the target wall, and it is particularly worth noting that their jet flow presents a wide fan-shaped pattern covering a wide area, and when all individuals are combined, they form an ideal closed circle to maximize the flushing efficiency.

[0039] Finally, the clever arrangement of the discharge port is highlighted. Since the horizontal state is prone to cause sediment accumulation to hinder smooth flow, special tilt treatment is performed on this link, and the height difference is slightly adjusted away from the center of the end, so that after completion, the waste can be quickly emptied without being retained and silted to affect the next use experience.

[0040] The implementation principle of the soil detection equipment based on heavy metal pollution in the embodiment of the application is as follows: the mixing tank 1 is connected to the liquid inlet pipe 11 on one side for adding a dissolving liquid, connected to the feed pipe 12 on the other side for adding a soil sample, and connected to the discharge pipe 13 at the bottom for discharging the mixed solution. The impurity removal hole 15 at the top of the mixing tank 1 cooperates with the flow divider pipe 22 to effectively remove the residual substances after mixing, thereby ensuring the purity of the detection sample. The residual removal plate 32 on the stirring shaft 14 removes the residual substances on the inner wall of the mixing tank 1, reduces the residual substances left by the previous operation, avoids cross contamination, and thereby significantly improves the detection accuracy of the soil detection equipment.

[0041] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so: any equivalent changes made according to the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A soil detection device based on heavy metal pollution, comprising a mixing tank (1), one side of the mixing tank (1) being communicated with a liquid inlet pipe (11), the other side being communicated with a material inlet pipe (12), the bottom of the mixing tank (1) being communicated with a material outlet pipe (13); a stirring shaft (14) being rotatably connected to the top of the mixing tank (1); characterized in that: The mixed tank (1) is provided with a foreign matter removing hole (15) at the top, a flow guide assembly (2) is connected in the mixed tank (1), the foreign matter removing hole (15) is connected with the flow guide assembly (2) through a pipeline; a residual removing assembly (3) is connected on the stirring shaft (14), and the residual removing assembly (3) is used for removing residues on the inner wall of the mixed tank (1).

2. The soil testing device based on heavy metal pollution according to claim 1, characterized in that: The residual removing assembly (3) comprises a plurality of residual removing connecting rods (31) and a plurality of residual removing plates (32), one end of each of the residual removing connecting rods (31) is connected on the stirring shaft (14), the other end of the residual removing connecting rod (31) is connected with the corresponding residual removing plate (32), and the residual removing plate (32) is attached to the inner wall of the mixed tank (1).

3. The soil testing device based on heavy metal pollution according to claim 2, characterized in that: The adjacent residual removing connecting rods (31) in the height direction are staggered.

4. The soil testing device based on heavy metal pollution according to claim 2, characterized in that: The residual removing plate (32) is provided with two inclined surfaces (321) close to the inner wall of the mixed tank (1), the two inclined surfaces (321) form a residual removing line (322), and the residual removing plate (32) forms a line-surface contact with the inner wall of the mixed tank (1).

5. The soil testing device based on heavy metal pollution according to claim 2, characterized in that: The residual removing connecting rod (31) is arranged at multiple angles, and the residual removing connecting rod (31) is arranged in a wave shape.

6. The soil testing device based on heavy metal pollution according to claim 2, characterized in that: The flow guide assembly (2) comprises a flow dividing ring (21), a plurality of flow dividing pipes (22) and a plurality of pressure nozzles (23), the flow dividing ring (21) is installed on the top wall of the mixed tank (1), the flow dividing ring (21) is connected with the foreign matter removing hole (15) through a pipeline, one end of each of the plurality of flow dividing pipes (22) is communicated with the flow dividing ring (21), and the other end is communicated with the corresponding pressure nozzle (23); the pressure nozzle (23) sprays the dissolving liquid towards the inner wall of the mixed tank (1).

7. A soil testing apparatus based on heavy metal contamination as claimed in claim 6, wherein: The spray of the pressure nozzle (23) is distributed in a fan shape, and the spray ranges of the plurality of pressure nozzles (23) form an analog circle.

8. The soil testing device based on heavy metal pollution according to claim 1, characterized in that: The bottom of the mixed tank (1) is inclined, and the bottom of the mixed tank (1) is inclined downward towards the discharge pipe (13).

Images