Detection device for heavy metal adsorption of road layer in simulated rainfall environment

Abstract

The utility model discloses a detection device for heavy metal adsorption of a road layer in a simulated rainfall environment, which relates to the technical field of permeable roads and comprises a liquid storage system, a flow control system, a sample performance test bin and a filtrate collection and detection system. The flow control system is composed of a perforated aluminum mesh combination layer and a rubber sealing ring layer, the sample performance test bin is mainly composed of a cylindrical test piece bin main body, an annular supporting prismatic table and a closer, and the filtrate collection and detection system is composed of a filtrate collection bin, a high-sensitivity heavy metal detection probe and a data processor. By setting the height of the annular supporting prismatic table, the heavy metal adsorption performance detection of permeable pavement structure layers with different thicknesses can be met, and by arranging a heavy metal concentration data processor to be connected with a cloud computer, the functions of field detection data transmission and instant analysis are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of permeable roads, in particular to a detection device for heavy metal adsorption by a road layer under a simulated rainfall environment. Background Art

[0002] In recent years, permeable pavement structures have been widely promoted and applied in cities due to their good driving safety, ability to eliminate road waterlogging, and reduced burden on urban drainage facilities. However, highly toxic particulate matter containing heavy metals produced by pavement materials or tire wear often accumulates in the process of infiltrating the permeable pavement structure through rainwater runoff. This poses a huge threat to the environmental safety of urban underground and river water circulation systems, and seriously hinders the sustainable development of urban water ecology.

[0003] Construction workers typically sample and test permeable pavement for heavy metal adsorption. However, due to the bulky testing equipment, long testing cycles, and complex testing procedures, it's virtually impossible to quickly and conveniently test the heavy metal adsorption capacity of structural layer samples at permeable pavement construction sites. Therefore, those skilled in the art have developed a device for testing heavy metal adsorption in a simulated rainfall environment to address the issues raised in the background art. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present invention provides a detection device for heavy metal adsorption by a road layer under a simulated rainfall environment, which solves the problems raised by the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a detection device for heavy metal adsorption by a road layer under a simulated rainfall environment, comprising a liquid storage system, a flow control system, a sample performance test chamber, and a filtrate collection and detection system;

[0006] The liquid storage system consists of a portable handle, a tank cover and a water tank body;

[0007] The flow control system is composed of a composite layer of perforated aluminum mesh and a rubber sealing ring layer;

[0008] The sample performance test chamber is mainly composed of a cylindrical specimen chamber body, an annular supporting prism and a closer;

[0009] The filtrate collection and detection system consists of a filtrate collection chamber, a highly sensitive heavy metal detection probe, and a data processor.

[0010] As a further technical solution of the present invention, the water tank body is connected to the portable handle by a rotational connection.

[0011] As a further technical solution of the present invention, the liquid storage system and the flow control system are connected by threaded connection and sealed by a rubber sealing ring layer.

[0012] As a further technical solution of the present invention, the flow control system is composed of multiple layers of perforated aluminum meshes with different pore sizes.

[0013] As a further technical solution of the present invention, the sample performance test chamber is a semi-open cylindrical body.

[0014] As a further technical solution of the present invention, the bottom of the sample performance testing chamber is rotatably connected to the top of the filtrate collection chamber through two sets of fixed gear stages.

[0015] As a further technical solution of the present invention, a filtrate collection chamber is provided inside the filtrate collection and detection system, high-sensitivity heavy metal detection probes are symmetrically provided inside the filtrate collection chamber, and a data processor is installed outside the filtrate collection and detection system.

[0016] The utility model provides a detection device for heavy metal adsorption by road layers under a simulated rainfall environment, which has the following beneficial effects compared with the existing technology: the utility model designs a detection device for heavy metal adsorption by road layers under a simulated rainfall environment, realizes on-site sampling detection under complex terrain conditions of permeable structural layers by setting a portable device, and can meet the heavy metal adsorption performance detection of permeable pavement structural layers of different thicknesses by setting the height of the annular supporting prism, and realizes the function of on-site detection data transmission and real-time analysis by setting a heavy metal concentration data processor and connecting it with a cloud computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of a detection device for heavy metal adsorption by a road layer under a simulated rainfall environment;

[0018] Figure 2 A top view of a composite layer of perforated aluminum mesh in a device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment;

[0019] Figure 3 A schematic diagram of the structure of a permeable road structure layer specimen in a device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment;

[0020] Figure 4 This is a schematic diagram of the structure of the aluminum filter layer in a detection device for heavy metal adsorption by the road layer under a simulated rainfall environment.

[0021] In the figure: 1. Liquid storage system; 2. Flow control system; 3. Sample performance test chamber; 4. Filtrate collection and detection system; 5. Water tank body; 6. Tank cover; 7. Portable handle; 8. Perforated aluminum mesh combination layer; 9. Rubber sealing ring layer; 10. Columnar specimen chamber body; 11. Annular support prism; 12. Positioning groove; 13. Positioning nut; 14. Fixed gear stage; 15. Closer; 16. High-sensitivity heavy metal detection probe; 17. Filtrate collection chamber; 18. Data processor; 19. Permeable road structure layer specimen; 20. Aluminum filter layer. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] Example 1

[0024] The utility model provides a technical solution for a detection device for heavy metal adsorption by a road layer under a simulated rainfall environment: comprising a liquid storage system 1, a flow control system 2, a sample performance test chamber 3, and a filtrate collection and detection system 4;

[0025] The liquid storage system 1 consists of a portable handle 7, a tank cover 6 and a water tank body 5;

[0026] The flow control system 2 is composed of a porous aluminum mesh layer 8 and a rubber sealing ring layer 9;

[0027] The sample performance test chamber 3 is mainly composed of a cylindrical specimen chamber body 10, an annular support prism 11 and a closer 15;

[0028] The filtrate collection and detection system 4 consists of a filtrate collection chamber 17 , a highly sensitive heavy metal detection probe 16 and a data processor 18 .

[0029] The sample performance test chamber 3 is divided into two parts, and the two side walls are completely closed by a closer 15. A height positioning groove 12 is also provided inside the sample performance test chamber 3, and the annular support prism 11 is height-controlled in the height positioning groove 12 by a positioning nut 13.

[0030] Specifically, in this embodiment, the water tank body 5 is connected to the portable handle 7 by a rotational connection, which facilitates the performance testing of the on-site test piece under complex terrain conditions.

[0031] Specifically, in this embodiment, the liquid storage system 1 and the flow control system 2 are connected by threaded connection and sealed by a rubber sealing ring layer 9 .

[0032] Specifically, in this embodiment, the flow control system 2 is composed of multiple layers of perforated aluminum meshes with different pore sizes, thereby achieving liquid flow control to simulate rainfall environments with different rainfall amounts.

[0033] Specifically, in this embodiment, the sample performance test chamber 3 is a semi-open cylindrical body for taking and placing the test sample.

[0034] Specifically, in this embodiment, the bottom of the sample performance test chamber 3 is rotatably connected to the top of the filtrate collection chamber 17 through two sets of fixed gear stages 14. The filtrate collection and detection system 4 is provided with a filtrate collection chamber 17, and the interior of the filtrate collection chamber 17 is symmetrically provided with a high-sensitivity heavy metal detection probe 16. A data processor 18 is installed on the outside of the filtrate collection and detection system 4. The heavy metal concentration of the filtrate is detected by the high-sensitivity heavy metal detection probe 16, and the data processor 18 is connected to the cloud computer to realize data transmission and real-time analysis functions.

[0035] Example 2

[0036] The present invention provides a technical solution for detecting the adsorption of heavy metals by a road layer under a simulated rainfall environment. The difference from the first embodiment is that an aluminum filter layer 20 is added to the second embodiment to prevent the damage to the bottom probe caused by the peeling and dispersion of the test piece during the flushing process, and the height of the annular support prism 11 is appropriately adjusted by the positioning nut 13 according to the size of the permeable road structure layer test piece 19.

[0037] Taking Example 2 as an example, during use, the easy-to-carry feature of the portable handle 7 facilitates the heavy metal adsorption performance test of the test piece at the construction site. The prepared heavy metal solution is added in advance according to the scale height in the water tank body 5. The flow control of simulated rainfall is achieved by selecting a composite layer 8 of perforated aluminum mesh with different pore sizes. The side wall of the sample performance test chamber 3 is opened by the closer 15, and the drilled sample is placed on the annular support prism 11. The height of the test piece is controlled by adjusting the positioning nut 13, and a layer of supporting glass grid is placed at the bottom of the test piece. Before the test, a small amount of wax needs to be added to the permeable road structure layer test piece 19 and the cylinder wall for sealing. The test filtrate is collected through the filtrate collection chamber 17, and the heavy metal concentration in the filtrate is tested by the high-sensitivity heavy metal detection probe 16. The data is transmitted through the data processor 18 to facilitate the information terminal to conduct real-time analysis of the data.

[0038] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment, characterized in that: It includes a liquid storage system (1), a flow control system (2), a sample performance test chamber (3), and a filtrate collection and detection system (4); The liquid storage system (1) is composed of a portable handle (7), a tank cover (6) and a water tank body (5); The flow control system (2) is composed of a perforated aluminum mesh composite layer (8) and a rubber sealing ring layer (9); The sample performance test chamber (3) is mainly composed of a cylindrical specimen chamber body (10), an annular supporting prism (11) and a closer (15); The filtrate collection and detection system (4) consists of a filtrate collection chamber (17), a high-sensitivity heavy metal detection probe (16), and a data processor (18).

2. The device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment according to claim 1, characterized in that: The water tank body (5) is connected to the portable handle (7) by a rotational connection.

3. The device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment according to claim 1, characterized in that: The liquid storage system (1) and the flow control system (2) are connected in a threaded manner and sealed by a rubber sealing ring layer (9).

4. The device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment according to claim 1, characterized in that: The flow control system (2) is composed of multiple layers of perforated aluminum meshes with different apertures.

5. The device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment according to claim 1, characterized in that: The sample performance test chamber (3) is a semi-open cylindrical body.

6. The device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment according to claim 1, characterized in that: The bottom of the sample performance test chamber (3) is rotatably connected to the top (17) via two sets of fixed gear stages (14).

7. The device for detecting heavy metal adsorption by a road layer under a simulated rainfall environment according to claim 1, characterized in that: A filtrate collection chamber (17) is provided inside the filtrate collection and detection system (4), a high-sensitivity heavy metal detection probe (16) is symmetrically provided inside the filtrate collection chamber (17), and a data processor (18) is installed outside the filtrate collection and detection system (4).

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