Detection device for measuring silt content in water and soil loss

Abstract

The invention discloses a detection device for measuring silt content in water and soil loss, and belongs to the technical field of silt content monitoring. A partition plate is arranged at the middle upper part in the box body and divides the box body into an upper part and a lower part, and a first circular through hole is formed in the right side of the partition plate; a measuring host is arranged at the upper part of the box body and on the upper surface of the partition plate; a runoff sediment collecting barrel is arranged at the lower part of the box body; a sediment stirring assembly is fixed to the center of the lower surface of the partition plate, a light source assembly is arranged in the runoff sediment collecting barrel and located in the center of the bottom of the runoff sediment collecting barrel, and the light source assembly comprises an accent light set and a photoelectric sensor; photoelectric sensors are arranged on one side of the accent light set at intervals, a light guide column is fixed above the accent light set, and a photoelectric element is arranged on the inner wall of the runoff sediment collecting barrel. The device is convenient to assemble and carry, can be suitable for different measurement places, meets the requirement for real-time monitoring of silt, and more accurately measures the content of the silt through the combination of the light source assembly and the photoelectric element.

Description

Technical Field

[0001] The invention discloses a detection device for measuring sediment content in soil erosion, which belongs to the technical field of sediment content monitoring. Background Art

[0002] In today's environmental protection field, soil erosion is one of the important issues of global concern, which has caused many negative impacts on the ecological environment and human life, such as causing natural disasters such as landslides and mud-rock flows. Therefore, it is very important to carry out soil and water conservation work, and runoff sediment data observation, as one of the key tasks, is of great significance for understanding the status of soil erosion and formulating reasonable prevention and control measures.

[0003] With the continuous development of science and technology, various measurement technologies continue to emerge. Specifically in the field of runoff sediment measurement technology, the commonly used measurement methods currently include weighing method, screening method, laser particle size analysis method, etc. The weighing method determines the sediment content by weighing the collected sediment samples, but the operation is cumbersome and cannot be measured in real time; the screening method requires the sediment to be screened, and there are also problems of complex operation and low efficiency; although the laser particle size analysis method can analyze the size and content of sediment particles to a certain extent, the equipment is expensive and has high environmental requirements, and its application in scenarios such as field measurements is limited. The existing patent CN213580535U (application date: 2020.10.16) discloses a sediment content detection device for detecting soil erosion, wherein a weighing platform is fixedly connected to the upper surface of the base near the right end, a heating platform is fixedly connected to the upper surface of the weighing platform, an asbestos net is fixedly connected to the inner wall of the heating platform, a mixing drum is plugged into the inner wall of the heating platform, a drum cover is provided on the upper surface of the mixing drum, a feed pipe and a motor are fixedly connected to the upper surface of the drum cover, a small hole is provided at the center of the upper surface of the drum cover, and a stirring rod is fixedly connected to the output shaft of the motor through the small hole. By weighing the total content of water and sediment, and weighing the weight of the sediment after evaporating the water, the sediment content of soil erosion is determined, but this method has uncertainty, and uses multiple links such as sampling, transportation, and experimental processing, so that the entire measurement process takes a long time, and it is impossible to realize real-time monitoring of the sediment content; in the process of experimental treatment of evaporating water, the measurement results may be biased due to factors such as partial loss of samples or improper processing, resulting in inaccurate measurement results. Summary of the invention

[0004] In order to solve the technical problems of measuring the accuracy of sediment content and real-time monitoring of the sediment content in soil and water loss, the present invention provides a detection device for measuring the sediment content in soil and water loss.

[0005] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0006] Detection device for measuring sediment content in soil erosion, such as Figure 1As shown, a partition plate 6 is provided in the middle and upper part of the box body, dividing the box body into an upper part and a lower part, and a first circular through hole 15 is provided on the right side of the partition plate 6; a measuring host 1 is provided in the upper part of the box body and on the upper surface of the partition plate 6, and the measuring host 1 is coupled to an external power supply; a runoff sediment collection bucket 7 is provided in the lower part of the box body; a sediment stirring assembly is fixed at the center of the lower surface of the partition plate 6, and the sediment stirring assembly is electrically connected to the measuring host 1, and the sediment stirring assembly is suspended at the center of the runoff sediment collection bucket 7 and does not contact the bottom of the runoff sediment collection bucket 7; the runoff sediment A light source assembly is provided in the collection barrel 7 and at the center of the bottom of the runoff sediment collection barrel 7. The light source assembly is electrically connected to the measuring host 1, and the light source assembly includes a strong light group 9 and a photoelectric sensor 10; a photoelectric sensor 10 is spaced apart on one side of the strong light group 9, and a light guide column 8 is fixed above the strong light group 9, and the light guide column 8 can completely cover the strong light group 9; a photoelectric element 13 is provided on the inner wall of the runoff sediment collection barrel 7, and the photoelectric element 13 is electrically connected to the photoelectric sensor 10 and the measuring host 1.

[0007] The beneficial effects of the present invention are as follows: the present invention provides a detection device for measuring the sediment content in soil erosion, which is easy to assemble and carry, can be applied to different measurement sites, and meets the needs of real-time monitoring of sediment; the box body is used as the outer shell of the entire detection device, which reduces the influence of external environmental factors such as dust and moisture on the detection device, and ensures the normal operation of the device; a runoff sediment collection bucket is provided under the partition plate, which serves as a container for real-time collection of runoff mixed liquid containing sediment, and provides a sample environment for the measurement work of the detection device; the special-shaped stirring rod is driven by the driving end of the stirrer to rotate and stir at the bottom of the runoff sediment collection bucket, so that the sediment particles are evenly distributed at different layers in the runoff sediment collection bucket, so that the measured sediment content is more accurate, thereby accurately determining the soil erosion situation; the strong light group includes different The wavelength of the light source can be replaced with different strong light lamp groups according to different detection samples and detection requirements to meet the detection requirements of different sediments, making the detection device of the present invention more widely used; in addition, a light guide column is fixed on the strong light lamp group, and the light emitted by the strong light lamp group is dispersed through the light guide column, so that the light is evenly distributed in the runoff mixed liquid containing sediment, providing good light field conditions for the measurement of light intensity changes; the strong light emitted is sensed by the photoelectric sensor, and the intensity and wavelength change information of the light signal received and captured by the photoelectric element, and this information is transmitted to the measurement host in time, and the measurement host analyzes and processes the received light signal to calculate the sediment content, which is more convenient and quick, and the measurement host can store and transmit the calculated sediment content data, which is convenient for viewing historical records and sharing measurement results. Through the combination of light source components and photoelectric elements, the sediment content can be measured more accurately.

[0008] The present invention was experimentally verified using the following experimental conditions:

[0009] Simulate the scene of different soil erosion degree, set multiple measuring points, and place a detection device of the present invention at each measuring point. Continuously collect light intensity information data within a certain time interval, and obtain sediment content data after analysis and processing by the measuring host.

[0010] Measurement results: In terms of measurement accuracy, the deviation measured by the detection device of the present invention is small, and the average deviation is controlled within 80%;

[0011] In terms of real-time performance, the detection device of the present invention can obtain sediment content data in real time and update the measurement results every certain period of time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a cross-sectional schematic diagram of a detection device for measuring the sediment content in soil erosion, and the figure is also used as an abstract figure.

[0013] Figure 2 The figure is a schematic diagram of the distribution of photoelectric elements in the runoff sediment collection bucket of the detection device for measuring the sediment content in soil erosion of the present invention. DETAILED DESCRIPTION

[0014] The present invention is further described.

[0015] like Figure 1 and Figure 2 As shown, the box body is semi-enclosed, including a left baffle 4, a right baffle 3, a rear baffle, a front upper baffle, a front lower baffle upper cover 2 and a bottom plate 5; the left baffle 4, the right baffle 3, the rear baffle and the upper cover 2 are fixedly connected by bolts, and the front upper baffle and the upper cover 2 are detachably connected, wherein a runoff sediment collection bucket 7 is provided on the bottom plate 5; when it is necessary to measure the sediment, the front upper baffle can be removed to facilitate the operation of the measuring host 1; when it is not necessary to measure the sediment, the front upper baffle is connected to the upper cover 2 to protect the measuring host 1; the front lower baffle and the partition plate 6 are detachably connected to facilitate the maintenance of the equipment and the replacement of internal accessories.

[0016] A second circular through hole 16 is provided on the right side of the upper cover 2 and located at the upper right side of the runoff sediment collection bucket 7. The second circular through hole 16 is located directly above the first circular through hole 15. The second circular through hole 16 is connected to the first circular through hole 15 through a circular pipeline.

[0017] Specifically, the runoff mixed liquid containing sediment enters the runoff sediment collection bucket 7 through the second circular through hole 16, the pipeline and the first circular through hole 15, and then the sediment content is measured, so as to accurately determine the soil and water loss situation.

[0018] The sediment stirring assembly includes a driving end 12 of the agitator and a special-shaped stirring rod 11; the driving end 12 of the agitator is arranged on the lower surface of the partition plate 6; the special-shaped stirring rod 11 is detachably connected to the end of the stirring shaft in the driving end 12 of the agitator, and the special-shaped stirring rod 11 is arranged at intervals on the outside of the light guide column 8.

[0019] Specifically, the measuring host 1 sends a command to start the sediment stirring assembly, and the driving end 12 of the stirrer drives the special-shaped stirring rod 11 to rotate and stir at the lower part of the runoff sediment collection bucket 7, so as to stir the runoff mixed fluid containing sediment in the runoff sediment collection bucket 7, so that the sediment particles at different layers in the runoff sediment collection bucket 7 are more evenly distributed, thereby avoiding sediment precipitation or excessive local concentration, and improving the accuracy of measurement.

[0020] The driving end 12 of the stirrer is driven by magnetic transmission or motor.

[0021] Specifically, by selecting different driving ends 12 of the agitator, the rotational speeds of the special-shaped agitator rod 11 are different. Therefore, different driving modes can be selected according to different measurement scenarios and characteristics of sediment to meet different usage requirements.

[0022] The strong light lamp group 9 includes a white light LED lamp group with a wavelength within the range of 380nm to 760nm, a red light LED lamp group with a wavelength within the range of 620nm to 760nm, and a purple light LED lamp group with a wavelength within the range of 380nm to 450nm.

[0023] Furthermore, the strong light group 9 includes a white light LED light group with a wavelength within the range of 380nm to 760nm and a purple light LED light group with a wavelength within the range of 380nm to 450nm.

[0024] The light guide column 8 is a hollow structure or a solid structure, and light guide structures of different heights and directions are staggeredly distributed in the light guide column, which can disperse the light emitted by the high-intensity lamp group 9 in different directions through the light guide column 8.

[0025] The light guide column 8 is made of acrylic, PC, ABS, glass, plastic optical fiber or glass fiber.

[0026] Specifically, the measuring host 1 issues a command to start the strong light component, so that the strong light lamp group 9 emits strong light, and the photoelectric sensor 10 senses the light intensity information of the strong light emitted, captures the slight changes in light, and converts the captured light intensity information into a light signal; and the light guide column 8 on the strong light lamp group 9 evenly disperses the strong light emitted by the strong light lamp group 9, so that the strong light is evenly irradiated in the runoff mixed liquid containing sediment, and the propagation changes of light in the runoff mixed liquid containing sediment are used to determine the sediment content, thereby improving the accuracy of the measurement. At the same time, according to different sediment measurement requirements, strong light lamp groups of different wavelengths can be selected, so that the detection device can meet different detection requirements.

[0027] The photoelectric element 13 is a photoelectric receiver, and there are multiple photoelectric receivers; at the height t1 of the runoff sediment collection barrel 7, multiple photoelectric elements 13 are evenly arranged along the circumference of the runoff sediment collection barrel 7; and at the height t2 of the runoff sediment collection barrel 7, multiple photoelectric elements 13 are evenly arranged along the circumference of the runoff sediment collection barrel 7.

[0028] The number and installation height of the photoelectric elements 13 provided on the inner wall of the runoff sediment collection barrel 7 can be adjusted according to different requirements for receiving light intensity information to meet different detection requirements, so as to make the detection device more widely used.

[0029] Furthermore, there are 6 photoelectric receivers. At the height t1 of the runoff sediment collection barrel 7, 3 photoelectric receivers are evenly arranged along the circumference of the runoff sediment collection barrel 7; and at the height t2 of the runoff sediment collection barrel 7, 3 photoelectric receivers are evenly arranged along the circumference of the runoff sediment collection barrel 7.

[0030] Specifically, when the measuring host 1 issues an instruction to start the strong light component, the photoelectric element 13 is turned on at the same time and collects the light signal. When the strong light passes through the sediment particles in the runoff mixed liquid containing sediment, the light will be scattered, and the propagation path of the light will change, resulting in a change in light intensity. The multiple photoelectric elements 13 installed on the inner wall of the runoff sediment collection bucket 7 can receive the change information of the light intensity in real time; two groups of photoelectric elements 13 are evenly arranged along the circumference at different heights of the inner wall of the runoff sediment collection bucket 7, and each group of photoelectric elements 13 is 3, so that the photoelectric elements 13 form a three-dimensional structure, so that the photoelectric elements 13 can accurately receive the change information of the light intensity; the light signal captured by the photoelectric sensor 10 and the change information of the light intensity received by the photoelectric element 13 can be converted into an electrical signal by the photoelectric element 13, and then the photoelectric element 13 transmits the electrical signal to the measuring host 1. Finally, the measuring host 1 analyzes and calculates the received electrical signal through the internal preset algorithm to obtain the sediment content in the runoff mixed liquid, thereby determining the situation of soil erosion.

[0031] The above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A detection device for measuring the sediment content in soil erosion, characterized in that: A partition plate (6) is provided in the middle upper part of the box body, dividing the box body into an upper part and a lower part, and a first circular through hole (15) is provided on the right side of the partition plate (6); a measuring host (1) is provided in the upper part of the box body and on the upper surface of the partition plate (6), and the measuring host (1) is coupled to an external power supply; a runoff sediment collection bucket (7) is provided in the lower part of the box body; a sediment stirring assembly is fixed at the center of the lower surface of the partition plate (6), and the sediment stirring assembly is electrically connected to the measuring host (1), and the sediment stirring assembly is suspended at the center of the runoff sediment collection bucket (7) and does not contact the bottom of the runoff sediment collection bucket (7); the runoff sediment collection bucket (7) is provided with a measuring host (1) and a measuring host (1 ... A light source assembly is provided at the center of the bottom of the runoff sediment collection bucket (7), and the light source assembly is electrically connected to the measuring host (1), and the light source assembly comprises a strong light group (9) and a photoelectric sensor (10); a photoelectric sensor (10) is provided at intervals on one side of the strong light group (9), and a light guide column (8) is fixed above the strong light group (9), and the light guide column (8) can completely cover the strong light group (9); a photoelectric element (13) is provided on the inner wall of the runoff sediment collection bucket (7), and the photoelectric element (13) is electrically connected to the photoelectric sensor (10) and the measuring host (1).

2. The detection device for measuring the sediment content in soil erosion according to claim 1, characterized in that: The box body is semi-enclosed, comprising a left baffle (4), a right baffle (3), a rear baffle, a front upper baffle, a front lower baffle, an upper cover (2) and a bottom plate (5); the left baffle (4), the right baffle (3), the rear baffle and the upper cover (2) are fixedly connected by bolts, the front upper baffle and the upper cover (2) are detachably connected, and the front lower baffle and the partition plate (6) are detachably connected; wherein a runoff sediment collection bucket (7) is provided on the bottom plate (5).

3. The detection device for measuring the sediment content in soil erosion according to claim 2, characterized in that: A second circular through hole (16) is provided on the right side of the upper cover (2) and located on the upper right side of the runoff sediment collection bucket (7), wherein the second circular through hole (16) is located directly above the first circular through hole (15); the second circular through hole (16) is connected to the first circular through hole (15) via a circular pipeline.

4. The detection device for measuring the sediment content in soil erosion according to claim 1, characterized in that: The sediment stirring assembly comprises a driving end (12) of a stirrer and a special-shaped stirring rod (11); the driving end (12) of the stirrer is arranged on the lower surface of a partition plate (6); the special-shaped stirring rod (11) is detachably connected to the end of a stirring shaft in the driving end (12) of the stirrer, and the special-shaped stirring rod (11) is arranged at intervals on the outside of a light guide column (8).

5. The detection device for measuring the sediment content in soil erosion according to claim 4, characterized in that: The driving end (12) of the stirrer is driven by magnetic transmission or motor.

6. The detection device for measuring the sediment content in soil erosion according to claim 1, characterized in that: The strong light lamp group (9) comprises a white light LED lamp group with a wavelength within the range of 380nm to 760nm, a red light LED lamp group with a wavelength within the range of 620nm to 760nm, and a purple light LED lamp group with a wavelength within the range of 380nm to 450nm.

7. The detection device for measuring the sediment content in soil erosion according to claim 1, characterized in that: The light guide column (8) is a hollow structure or a solid structure, and light guide structures of different heights and directions are staggeredly distributed in the light guide column (8), so that the light emitted by the high-intensity lamp group (9) can be dispersed in different directions through the light guide column (8).

8. The detection device for measuring the sediment content in soil erosion according to claim 7, characterized in that: The material of the light guide column (8) is acrylic, PC, ABS, glass, plastic optical fiber or glass fiber.

9. The detection device for measuring the sediment content in soil erosion according to claim 1, characterized in that: The photoelectric element (13) is a photoelectric receiver, and there are multiple photoelectric receivers; at a height t1 of the runoff sediment collection barrel (7), multiple photoelectric elements (13) are evenly arranged along the circumference of the runoff sediment collection barrel (7); and at a height t2 of the runoff sediment collection barrel (7), multiple photoelectric elements (13) are evenly arranged along the circumference of the runoff sediment collection barrel (7).

10. The detection device for measuring the sediment content in soil erosion according to claim 9, characterized in that: There are six photoelectric receivers, and at a height t1 of the runoff sediment collection bucket (7), three photoelectric receivers are evenly arranged along the circumference of the runoff sediment collection bucket (7); and at a height t2 of the runoff sediment collection bucket (7), three photoelectric receivers are evenly arranged along the circumference of the runoff sediment collection bucket (7).

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