Experimental device for rapidly measuring sand content of soil

Abstract

The utility model provides an experimental device for rapidly measuring the sand content of soil, which comprises a support frame, a container is fixed on the support frame and can be fixed through a fixing frame connected with the support frame, the upper end of the container is provided with an opening and is connected with a water injection pipe, the container is provided with scales, a filter screen is arranged in the container, and the filter screen is connected with a water inlet pipe. A filter screen is arranged in the container, a stirring impeller is arranged above the filter screen, the stirring impeller is driven by a stirring shaft connected with the stirring impeller to rotate, a water outlet is formed in the lower end of the container, a switch valve is arranged on the water outlet, a collecting bottle is placed below the water outlet, and scales are arranged on the collecting bottle. According to the utility model, a soil sample and water are mixed and stirred, so that soil particles are uniformly dispersed, then sand particles and fine soil particles are separated by utilizing a gravity settling and filtering principle, and finally the sand content of the soil is calculated according to a volume difference, so that the operation efficiency is greatly improved, and the measurement is efficient, accurate, visual, universal and stable.

Description

Technical Field

[0001] This utility model belongs to the field of soil testing technology, and in particular relates to an experimental device for rapidly determining the sand content of soil. Background Technology

[0002] Currently, accurate determination of soil sand content is crucial for assessing soil texture and fertility, and guiding agricultural practices in soil science research and agricultural production. However, existing methods for determining soil sand content are often complex and time-consuming, failing to meet the need for rapid detection. Therefore, it is necessary to design an experimental apparatus capable of rapidly and accurately determining soil sand content. Utility Model Content

[0003] This invention addresses the aforementioned technical problems by proposing an experimental device for rapidly determining soil sand content. It employs an automated mixing component to quickly and evenly disperse soil particles, greatly improving operational efficiency. Furthermore, the device offers efficient, accurate, intuitive, versatile, and stable measurement, providing a superior solution for soil sand content determination.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an experimental device for rapidly determining the sand content of soil, comprising a support frame, on which a container is fixed, which can be fixed by a fixing bracket connected to the support frame, the upper end of the container is set as an opening and connected to a water injection pipe, the container is set with graduations, a filter screen is set inside the container, a stirring impeller is set above the filter screen, the stirring impeller is driven to rotate by a connected stirring shaft, a water outlet is set at the lower end of the container, a switch valve is set on the water outlet, and a collection bottle is placed below the water outlet, the collection bottle is set with graduations.

[0005] Furthermore, the container consists of an upper cylindrical container and a lower conical container, which are connected and sealed by a sealing ring.

[0006] Furthermore, an upper limit portion is provided inside the cylindrical container near the connection point with the conical container, and a lower limit portion is provided inside the conical container near the connection point with the cylindrical container. Both the upper limit portion and the lower limit portion are annular structures.

[0007] Furthermore, one or two filters may be provided;

[0008] When there is only one filter screen, it is located at the lower end of the sealing ring and abuts against the end and lower limit part of the sealing ring.

[0009] When the filter screen is provided with two, the upper filter screen and the lower filter screen are provided, the upper filter screen is abutted between the upper limiting part and the end part of the sealing ring, the lower filter screen is abutted between the lower limiting part and the other end part of the sealing ring, and the mesh of the upper filter screen is larger than the mesh of the lower filter screen.

[0010] Further, the container and the collecting bottle are both transparent materials.

[0011] Further, the support frame is fixed with a stirring motor, and the stirring shaft is located at the lower end of the stirring motor.

[0012] Further, the stirring motor has a power of 100 watts, and the rotating speed of the stirring motor ranges from 0 to 1000 r / min.

[0013] Further, the filter screen is a stainless steel filter screen, and the filter screen has a mesh diameter of 0.1 mm.

[0014] Compared with the prior art, the device has the advantages and positive effects that: the soil sample is mixed and stirred with water, the soil particles are uniformly dispersed, then the sand particles and the small soil particles are separated by using the principle of gravity settling and filtration, finally the soil sand content is calculated according to the volume difference, the operation is convenient, the determination can be quickly completed, the high-precision filter screen and the accurate scale ensure the accuracy of the determination result, reduce the error, the transparent container can directly observe the experimental phenomenon, and timely adjustment is facilitated. Meanwhile, the device parameters can be adjusted, the device is suitable for different soil types, and has high universality. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor.

[0016] Figure 1 It is a structural schematic view of the present application;

[0017] Figure 2 It is a sectional view of the transparent container in the present application.

[0018] In the above drawings: 1, support frame; 2, stirring motor; 3, stirring shaft; 4, stirring impeller; 5, cylindrical container; 6, water injection pipe; 7, conical container; 8, lower filter screen; 9, on-off valve; 10, collecting bottle; 11, upper limiting part; 12, sealing ring; 13, lower limiting part; 14, upper filter screen. DETAILED DESCRIPTION

[0019] The utility model will be described in detail below through exemplary embodiments. However, it should be understood that the elements, structures and features in one embodiment can also be beneficially combined into other embodiments without further description.

[0020] A kind of experimental device for fast reading determination soil sand content, please refer to Figure 1 , including support frame 1, the support frame 1 is fixed with a container 5, fixed mode can be fixed by the fixed frame connected with support frame 1, the upper end of container 5 is set as opening, and is connected with water injection pipe 6, the container 5 is provided with scale, filter screen 8 is provided in the container, stirring impeller 4 is provided above filter screen 8, the stirring impeller 4 is driven to rotate by the stirring shaft 3 connected with it, the stirring shaft 3 upper end is connected and fixed in the stirring motor 2 of support frame 1, and the power of stirring motor 2 is 100 watts, and the speed range is 0-1000r / min. The lower end of container is provided with water outlet, and the switch valve 9 is provided on the water outlet, and the collection bottle 10 is placed below the water outlet, and the scale is provided on the collection bottle 10.

[0021] Please refer to Figure 2 , container is composed of upper cylindrical container 5 and lower conical container 7, and the cylindrical container 5 and the conical container 7 are connected and sealed by sealing ring 12 between them;

[0022] In the cylindrical container 5, the position close to the connecting part of conical container 7 is provided with upper limit part 11, and in the conical container 7, the position close to the connecting part of cylindrical container 5 is also provided with lower limit part 13, and the upper limit part 11 and the lower limit part 13 are annular structures.

[0023] Filter screen 8 is provided with one or two;

[0024] When filter screen 8 is set to one, it is located at the lower end of sealing ring, and abuts with the end of sealing ring 12 and lower limit part 13;

[0025] When filter screen is set to two, it is divided into upper filter screen 14 and lower filter screen 8, upper filter screen 14 is abutted between upper limit part 11 and the end of sealing ring 12, lower filter screen 8 is abutted between lower limit part 13 and the other end of sealing ring 12, and the mesh of upper filter screen 14 is greater than that of lower filter screen 8.

[0026] In working, open the water injection pipe 6, inject water to the upper cylindrical container 5, stop at the scale line 500ml, then add the soil sample to be measured to the water level rising to the scale line 600ml, stop, open the stirring motor 2, adjust the stirring motor 2 to the appropriate speed, the stirring shaft 3 drives the stirring paddle 4 to stir, after stirring for 10 minutes, close the stirring motor 2, let the soil particles naturally settle under the action of gravity for 20 minutes, since the particle size of the sand and gravel is large, it is intercepted by the stainless steel screen 8, the soil naturally settles in the conical container 7. Open the separation switch 9, collect the mixed mud water sample into the collecting bottle 10. Through observing the total volume of the soil and water in the collecting bottle, calculate with the initial volume 600ml, obtain the volume of the sand and gravel, and then calculate the sand content of the soil.

[0027] The above merely describes the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A laboratory apparatus for rapid determination of sand content of soil, characterized in that: The support frame is fixed with a container, the fixing mode can be fixed through the fixing frame connected with the support frame, the upper end of the container is provided as an opening, and the water injection pipe is connected, the container is provided with a scale, the filter screen is arranged in the container, the stirring impeller is arranged above the filter screen, the stirring impeller is driven to rotate through the stirring shaft connected therewith, the water outlet is arranged at the lower end of the container, the switch valve is arranged on the water outlet, and the collecting bottle is placed below the water outlet, and the scale is arranged on the collecting bottle.

2. The experimental device for quickly determining the sand content of soil according to claim 1, characterized in that: The container is composed of a cylindrical upper container and a conical lower container, and the cylindrical upper container and the conical lower container are connected and sealed through a sealing ring.

3. The experimental apparatus for rapidly determining the sand content of soil according to claim 2, characterized in that: An upper limiting part is arranged in the cylindrical container near the connection with the conical container, and a lower limiting part is arranged in the conical container near the connection with the cylindrical container, and the upper limiting part and the lower limiting part are annular structures.

4. The experimental apparatus for rapidly determining the sand content of soil according to claim 3, characterized in that: The filter screen is provided with one or two; When the filter screen is provided with one, it is located at the lower end of the sealing ring and abuts against the end of the sealing ring and the lower limiting part; When the filter screen is provided with two, it is divided into an upper filter screen and a lower filter screen, the upper filter screen abuts between the upper limiting part and the end of the sealing ring, the lower filter screen abuts between the lower limiting part and the other end of the sealing ring, and the mesh of the upper filter screen is larger than that of the lower filter screen.

5. The experimental apparatus for quickly determining the sand content of soil according to claim 1, characterized in that: The container and the collecting bottle are both transparent materials.

6. The experimental apparatus for quickly determining the sand content of soil according to claim 1, characterized in that: The support frame is fixed with a stirring motor, and the stirring shaft is located at the lower end of the stirring motor.

7. The experimental apparatus for quickly determining the sand content of soil according to claim 6, characterized in that: The power of the stirring motor is 100 W, and the rotating speed range of the stirring motor is 0-1000 r / min.

8. The experimental apparatus for quickly determining the sand content of soil according to claim 1, characterized in that: The filter screen is a stainless steel filter screen, and the filter screen aperture is 0.1 mm.

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