Device for conveniently measuring content of carbonate in soil

Abstract

The utility model belongs to the technical field of detection equipment, and particularly relates to a device for conveniently measuring the content of carbonate in soil, which at least comprises a base, a vertical support frame and a reaction bottle which are arranged on the base, a movable slide rail fixedly arranged on the vertical support frame facing one side of the reaction bottle, a gas quantity pipe and a scale plate corresponding to the position of the gas quantity pipe, the movable sliding rail is provided with a sliding block matched with the movable sliding rail, the sliding block can move up and down along the movable sliding rail, a water injection buffer container is arranged on the sliding block, and a two-way valve is arranged at the top of the gas flow pipe; two hoses are arranged on the other side of the vertical support frame, the first hose is communicated with the upper end of the gas quantity pipe and the reaction bottle, and the second hose is communicated with the lower end of the gas quantity pipe and the reaction bottle water injection buffer container; a sealing plug is arranged at a bottle opening of the reaction bottle, and a container for containing acid liquor is also arranged in the bottle. The scheme provides a device which is convenient to operate, can clearly observe the level condition of the liquid level, ensures the contact reaction of a soil sample and acid liquor in a closed system with good sealing performance, and accurately reads the gas volume.

Description

Technical Field

[0001] This utility model belongs to the field of testing equipment technology, and specifically relates to a device for conveniently determining the carbonate content of soil. Background Technology

[0002] When testing according to NY / T 86-1988 "Soil Carbonate Determination Method", there are problems such as liquid overflowing through the overflow port and easily generating air bubbles during the water injection process of the gas flow reaction device, leading to inaccurate test data. In addition, when reading the final results, the operator needs to drain water from the lower drain valve until the liquid level in the gas flow tube and the side tube is level, which requires a high level of operator skill and is quite difficult to operate. Therefore, there is a need to design a more convenient, faster, and accurate device for determining soil carbonate. Summary of the Invention

[0003] To achieve the above objectives, this utility model provides a device that is easy to operate, accurate in measurement, and ensures that the reaction between soil samples and acid is completed in a well-sealed closed system. The specific technical solution adopted is as follows: A device for conveniently measuring the carbonate content of soil includes at least a base, a vertical support frame mounted on the base, and a reaction bottle. A movable slide rail, a gas flow tube, and a scale plate corresponding to the position of the gas flow tube are fixedly mounted on the vertical support frame facing the reaction bottle. The movable slide rail has a slider that cooperates with it, and the slider can move up and down along the movable slide rail. A water-filled buffer container is provided on the slider. A two-way valve is provided at the top of the gas flow tube. Two flexible hoses are provided on the other side of the vertical support frame. The first flexible hose connects the upper end of the gas flow tube to the reaction bottle, and the second flexible hose connects the lower end of the gas flow tube to the water-filled buffer container of the reaction bottle. The mouth of the reaction bottle is provided with a sealing plug, and a container for holding acid is also provided inside the bottle.

[0004] Moreover, the vertical support is mounted on the edge of the base.

[0005] Furthermore, an upper slide rail fixing bracket is fixed at the top of the vertical support frame, and a lower slide rail fixing bracket is fixed at the bottom of the vertical support frame. Both the upper slide rail fixing bracket and the lower slide rail fixing bracket are horizontally arranged, and the position of the movable slide rail is fixed by the upper slide rail fixing bracket and the lower slide rail fixing bracket.

[0006] Furthermore, an upper air volume tube fixing bracket is fixed to the upper part of the vertical support frame, and a lower air volume tube fixing bracket is fixed to the lower part of the vertical support frame. The position of the air volume tube is fixed by the upper air volume tube fixing bracket and the lower air volume tube fixing bracket.

[0007] Furthermore, the highest point of the air volume tube is lower than the highest point of the moving slide rail, and the lowest point of the air volume tube is higher than the lowest point of the moving slide rail.

[0008] Furthermore, the movable slide rail and the air volume tube are respectively located on both sides of the scale plate.

[0009] Furthermore, the vertical support frame in the area where the movable slide rail is located has a hollow structure, and the vertical support frame in the areas where the gas flow pipe is located, the gas flow pipe is located, and the bottle mouth of the reaction bottle are all provided with through holes.

[0010] Furthermore, the soil sample to be tested is placed inside the reaction flask, and the container for holding the acid solution is a flat-bottomed finger-shaped bottle.

[0011] Compared with existing technologies, the beneficial effects of this technical solution are as follows:

[0012] 1. It provides an easy-to-use overall measuring device. The principle is that calcium carbonate in the soil reacts with strong acid to produce carbon dioxide gas. By measuring the change in gas volume before and after the reaction in a closed system, the volume of gas produced in the reaction is obtained, and then the carbonate content of the soil sample is calculated.

[0013] 2. Before measurement, it is necessary to check whether the system is sealed. Furthermore, this sealed system must not be opened after the sealing test is completed to avoid compromising its sealing performance. This device has an independent flat-bottomed finger bottle inside the reaction flask. Before measurement, place the soil sample to be tested into the reaction flask, and then place the flat-bottomed finger bottle containing the acid solution inside to avoid contact reaction between the soil sample and the acid solution. After sealing the flask and conducting the sealing test, shake the reaction flask to tilt the flat-bottomed finger bottle, thus ensuring that the reaction between the soil sample and the acid solution is completed within a perfectly sealed closed system.

[0014] 3. This device is equipped with a scale plate corresponding to the location of the gas flow tube, and the sliding rail and gas flow tube are respectively located on both sides of the scale plate. During the adjustment of the liquid level, it is possible to clearly observe whether the liquid level of the gas flow tube is level with the liquid level of the water injection buffer container. At the same time, the scale plate makes it easier to intuitively read the volume of carbon dioxide gas produced by the reaction of calcium carbonate with strong acid.

[0015] 4. The two-way valve at the top of the gas flow tube is used to control whether the gas flow tube is connected to atmospheric pressure or a reaction flask, which is convenient to control. Attached Figure Description

[0016] Figure 1 This is the main view of the embodiment;

[0017] Figure 2 This is a side view schematic diagram of an embodiment;

[0018] Figure 3 This is a schematic diagram of the upper structure of the vertical support frame;

[0019] Figure 4 This is a schematic diagram of the lower structure of the vertical support frame;

[0020] Figure 5 This is a rear view of the embodiment;

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Upper slide rail fixing bracket; 2. Water injection buffer container; 3. Slider; 4. Moving slide rail; 5. Scale plate; 6. Lower slide rail fixing bracket; 7. Reaction flask; 8. Cast iron base; 9. Two-way valve; 10. Gas flow pipe; 11. Upper gas flow pipe fixing bracket; 12. Lower gas flow pipe fixing bracket; 13. No. 1 hose; 14. Sealing plug; 15. Flat bottom finger tube; 16. No. 2 hose; 17. Vertical support frame; 18. Hollow structure; 19. Through hole. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. However, the content of the present invention is not limited to the following embodiments.

[0024] A convenient device for determining soil carbonate content, such as Figures 1 to 5 As shown, the system includes at least a base 8, a vertical support frame 17 located above the edge of the base, and a reaction flask 7. A movable slide rail 4, a gas flow tube 10, and a scale plate 5 corresponding to the location of the gas flow tube are fixedly mounted on the vertical support frame facing the reaction flask. The movable slide rail and the gas flow tube are respectively located on both sides of the scale plate. An upper slide rail fixing bracket 1 is fixed to the top of the vertical support frame, and a lower slide rail fixing bracket 6 is fixed to the bottom of the vertical support frame. The movable slide rail 4 is fixed between the upper and lower slide rail fixing brackets. Simultaneously, an upper gas flow tube fixing bracket 11 is fixed to the upper part of the vertical support frame, and a lower gas flow tube fixing bracket 12 is fixed to the bottom of the vertical support frame. The upper and lower gas flow tube fixing brackets are used to fix the gas flow tube 10. The movable slide rail has a matching slider 3, which can move up and down along the movable slide rail. The slider is equipped with a water-filling buffer container 2, and the top of the gas flow tube is equipped with a two-way valve 9. Two hoses are provided on the other side of the vertical support frame. The first hose 13 connects the upper end of the gas flow tube to the reaction bottle, and the second hose 16 connects the lower end of the gas flow tube to the water-filling buffer container of the reaction bottle. The mouth of the reaction bottle is equipped with a sealing plug 14. The soil sample to be tested is placed inside the reaction bottle, and a flat-bottomed finger bottle 15 containing acid solution is also provided inside the bottle.

[0025] Furthermore, the total height of the air volume tube is less than the total height of the moving slide rail, and the highest point of the air volume tube is lower than the highest point of the moving slide rail, while the lowest point of the air volume tube is higher than the lowest point of the moving slide rail. This ensures that the liquid level of the water-filled buffer container can be moved to any position that the liquid level of the air volume tube may appear in. There is sufficient friction between the slider and the moving slide rail, so that the slider holding the water-filled buffer container will not slide relative to the moving slide rail when there is no external interference.

[0026] Furthermore, the vertical support frame in the area where the sliding rail is located has a hollow structure 18, so that the No. 2 hose 16 can move along with the water injection buffer container when it moves up and down. The vertical support frame in the areas where the upper end of the gas flow pipe, the lower end of the gas flow pipe, and the mouth of the reaction bottle are located are all provided with through holes 19.

[0027] Furthermore, the lower rail fixing bracket has a circular hole in the middle to facilitate the passage of the first hose and its connection with the reaction flask.

[0028] Furthermore, the water injection buffer container, gas flow tube, reaction flask, and flat-bottomed finger tube are all made of transparent materials such as glass or plastic, which facilitates direct observation.

[0029] Before use, perform a sealing test: Step 1: Tighten the two-way valve knob upwards to connect the gas flow tube to atmospheric pressure. Pour water from the water buffer container into the gas flow tube until the water level rises above the zero mark. Stop pouring water and move the slider to keep the liquid level in the water buffer container flush with the zero mark on the gas flow tube. Step 2: Place the soil sample into the reaction bottle, then place the flat-bottomed finger bottle containing hydrochloric acid solution into the reaction bottle and tighten the sealing plug. After 30 seconds, tighten the two-way valve knob downwards to connect the reaction bottle to the gas flow tube. After two minutes, if the liquid level in the water buffer container remains flush with the zero mark on the gas flow tube, the system is properly sealed and leak-free. If the liquid level in the water buffer container remains flush with the zero mark on the gas flow tube, repeat the sealing test.

[0030] After passing the sealing test, the soil carbonate content can be determined. Gently shake the reaction bottle to tilt the flat-bottomed finger tube to ensure that the hydrochloric acid solution in the reaction bottle reacts fully with the soil sample. After the liquid level in the gas flow tube stops falling, move the slider to make the liquid level in the water injection buffer container level with the liquid level in the gas flow tube, and read the measurement volume in the gas flow tube. The soil carbonate content is then calculated.

[0031] Compared with existing technologies, the beneficial effects of this technical solution are as follows:

[0032] 1. It provides an easy-to-use overall measuring device. The principle is that calcium carbonate in the soil reacts with strong acid to produce carbon dioxide gas. By measuring the change in gas volume before and after the reaction in a closed system, the volume of gas produced in the reaction is obtained, and then the carbonate content of the soil sample is calculated.

[0033] 2. Before measurement, it is necessary to check whether the system is sealed. Furthermore, this sealed system must not be opened after the sealing test is completed to avoid compromising its sealing performance. This device has an independent flat-bottomed finger bottle inside the reaction flask. Before measurement, place the soil sample to be tested into the reaction flask, and then place the flat-bottomed finger bottle containing the acid solution inside to avoid contact reaction between the soil sample and the acid solution. After sealing the flask and conducting the sealing test, shake the reaction flask to tilt the flat-bottomed finger bottle, thus ensuring that the reaction between the soil sample and the acid solution is completed within a perfectly sealed closed system.

[0034] 3. This device is equipped with a scale plate corresponding to the location of the gas flow tube, and the sliding rail and gas flow tube are respectively located on both sides of the scale plate. During the adjustment of the liquid level, it is possible to clearly observe whether the liquid level of the gas flow tube is level with the liquid level of the water injection buffer container. At the same time, the scale plate makes it easier to intuitively read the volume of carbon dioxide gas produced by the reaction of calcium carbonate with strong acid.

[0035] 4. The two-way valve at the top of the gas flow tube is used to control whether the gas flow tube is connected to atmospheric pressure or a reaction flask, which is convenient to control.

Claims

1. A convenient device for determining soil carbonate content, comprising at least a base, a vertical support frame mounted on the base, and a reaction flask, characterized in that: A vertical support frame facing the reaction flask is fixedly equipped with a sliding rail, a gas flow tube, and a scale plate corresponding to the position of the gas flow tube. The sliding rail has a matching slider that can move up and down along the sliding rail. A water-filling buffer container is provided on the slider. A two-way valve is provided at the top of the gas flow tube. Two hoses are provided on the other side of the vertical support frame. Hose No. 1 connects the upper end of the gas flow tube to the reaction flask, and hose No. 2 connects the lower end of the gas flow tube to the water-filling buffer container of the reaction flask. The mouth of the reaction flask is equipped with a sealing plug, and a container for holding acid is also provided inside the flask.

2. The device for convenient determination of soil carbonate content according to claim 1, characterized in that: The vertical support is mounted on the edge of the base.

3. The device for convenient determination of soil carbonate content according to claim 1, characterized in that: The top of the vertical support frame is fixed with an upper slide rail fixing bracket, and the bottom of the vertical support frame is fixed with a lower slide rail fixing bracket. Both the upper slide rail fixing bracket and the lower slide rail fixing bracket are horizontally arranged, and the position of the movable slide rail is fixed by the upper slide rail fixing bracket and the lower slide rail fixing bracket.

4. The device for convenient determination of soil carbonate content according to claim 3, characterized in that: An upper air volume tube fixing bracket is fixed to the upper part of the vertical support frame, and a lower air volume tube fixing bracket is fixed to the lower part of the vertical support frame. The position of the air volume tube is fixed by the upper air volume tube fixing bracket and the lower air volume tube fixing bracket.

5. The device for convenient determination of soil carbonate content according to claim 1, characterized in that: The highest point of the air volume tube is lower than the highest point of the moving slide rail, and the lowest point of the air volume tube is higher than the lowest point of the moving slide rail.

6. The device for convenient determination of soil carbonate content according to claim 1, characterized in that: The movable slide rail and the air volume tube are respectively located on both sides of the scale plate.

7. The device for convenient determination of soil carbonate content according to claim 1, characterized in that: The vertical support frame in the area where the movable slide rail is located has a hollow structure, and the vertical support frame in the areas where the gas flow tube is located, the gas flow tube is located, and the bottle mouth of the reaction bottle are all provided with through holes.

8. The device for convenient determination of soil carbonate content according to claim 1, characterized in that: The soil sample to be tested is placed in the reaction flask, and the container for holding the acid solution is a flat-bottomed finger-shaped bottle.

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