Microwave drying type rock-soil body sample dry-wet cycle device

Abstract

The utility model provides a microwave drying type rock-soil body sample dry-wet cycle device. The microwave drying type rock-soil body sample dry-wet cycle device comprises a sealed box body and a microwave drying device, wherein the interior of the sealed box body is used for placing a rock sample; the mass measuring unit is arranged in the sealing box body and is used for measuring the mass of the rock sample; and the water storage unit is arranged on one side of the sealed box body. When the microwave drying type rock-soil body sample dry-wet cycle device provided by the scheme is used for testing a rock-soil body, the saturation and drying processes of the sample are integrated, the operation steps of the test are reduced, the waste of time is reduced, the drying condition of the sample can be monitored through a mass sensor, the test efficiency is improved, meanwhile, the rock-soil body is dried through a microwave generator, and the test efficiency is improved. The device can quickly increase the temperature of a sample to accelerate evaporation of moisture of the sample, can accelerate gas circulation through the fan, shortens the experiment time in the drying process, is economical and efficient, and can quickly cool a rock-soil body after drying is completed through the fan.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering, in particular to a microwave drying type rock and soil sample dry-wet cycle device. Background Art

[0002] In natural environments, the moisture content of rock and soil undergoes periodic and dynamic changes due to periodic rainfall and drought, as well as fluctuations in groundwater levels. Numerous studies have shown that the dynamic properties of rock and soil, such as strength, deformation, and stability, can significantly change during these wetting and drying cycles. These changes have a significant impact on the stability analysis and design of rock and soil in geological and environmental engineering.

[0003] By simulating wetting and drying cycles, we can more accurately assess the long-term performance and stability of geotechnical materials under natural conditions. This is of great value for engineering construction, geological disaster prevention, and environmental protection. Therefore, studying the dynamic characteristics of geotechnical materials under wetting and drying cycles not only helps us understand their fundamental behavior mechanisms but also provides reliable data support and theoretical basis for related projects.

[0004] The commonly used devices for rock and soil samples on the market can refer to the Chinese authorized utility model patent with publication number CN219657419U. The existing technology is specifically an integrated dry-wet cycle device for rock samples, which mainly tests rock and soil through humidification and drying. The rock sample dry-wet cycle integrated device includes: a sealed box, which is used to place rock samples; a temperature controller, which is arranged inside the sealed box and can heat the internal environment of the sealed box; a vacuum mechanism, which is connected to the top of the sealed box and communicates with the inside of the sealed box; a drying box, which is connected to the vacuum mechanism and is used to absorb the moisture extracted from the sealed box by the vacuum mechanism; an electronic scale, which is used to measure the mass change of the drying box; a filling and drainage mechanism, which is connected to the sealed box and is used to fill water into the sealed box or discharge water from the sealed box.

[0005] The above-mentioned existing technology has the following shortcomings in actual implementation: the drying speed of the rock and soil is slow, so the overall testing efficiency is poor. At the same time, the rock and soil cannot be cooled after drying. The surface temperature of the rock and soil just after drying is high and cannot be taken out immediately, which affects work efficiency. Utility Model Content

[0006] In order to solve the above problems, the present invention proposes a microwave drying type rock and soil sample dry-wet cycle device to solve the problems existing in the above-mentioned prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides a microwave drying type rock and soil sample dry-wet cycle device, which includes: a sealed box, the interior of which is used to place rock samples; a mass measuring unit, arranged inside the sealed box, for measuring the mass of the rock samples; a water storage unit, arranged on one side of the sealed box and connected to the sealed box, for injecting water into and extracting water from the interior of the sealed box; a vacuum unit, arranged at the other end of the sealed box and connected to the sealed box; wherein a microwave generator is installed on the inner top of the sealed box, and fans are installed on both sides of the sealed box.

[0008] Furthermore, a temperature and humidity sensor is arranged on the top of the sealed box.

[0009] Furthermore, the water storage unit includes a water tank arranged on one side of the sealed box body, a water pump arranged between the water tank and the sealed box body, and a water pipe connected to the water pump, wherein both ends of the water pipe are connected to the water tank and the sealed box body respectively.

[0010] Furthermore, the vacuum unit includes: a vacuum pump arranged on the other side of the sealed box; an air pipe installed on the vacuum pump; wherein a switch is installed on the top of the sealed box, and the free end of the air pipe is connected to the sealed box through the switch.

[0011] Furthermore, the mass measurement unit includes: a mass measurement sensor installed at the bottom of the sealed box; a permeable baffle installed on the top of the mass measurement sensor; wherein the top of the permeable baffle is used to place the rock sample.

[0012] Furthermore, a water level line is provided on the inner wall of the sealed box, and the water level line is located between the microwave generator and the rock sample.

[0013] Furthermore, a water control switch is provided on the water delivery pipe, and the water control switch is arranged between the water storage tank and the sealed box body.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The microwave drying type rock and soil sample dry-wet cycle device provided in this solution integrates the sample saturation and drying processes when testing rock and soil, reducing the number of test operation steps and time waste. The drying condition of the sample can be monitored by the mass sensor, thereby improving the test efficiency. At the same time, the rock and soil are dried by the microwave generator, which can quickly increase the sample temperature and accelerate the evaporation of the sample moisture. The fan can also accelerate the gas circulation and shorten the experimental time of the drying process. It is economical and efficient. The fan setting can also quickly cool the rock and soil after drying.

[0016] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] In the figure: 1. Water storage tank; 2. Fan; 3. Water pump; 4. Water control switch; 5. Mass measurement sensor; 6. Microwave generator; 7. Rock sample; 8. Permeable partition; 9. Sealed box; 10. Switch; 11. Vacuum pump; 12. Temperature and humidity sensor. DETAILED DESCRIPTION

[0019] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the following.

[0020] Reference Figure 1 As shown, a microwave drying type rock and soil sample dry-wet cycle device includes: a sealed box 9, the interior of the sealed box 9 is used to place the rock sample 7; a mass measuring unit, arranged inside the sealed box 9, for measuring the mass of the rock sample 7; a water storage unit, arranged on one side of the sealed box 9 and connected to the sealed box 9, for injecting water into and extracting water from the interior of the sealed box 9; a vacuum unit, arranged at the other end of the sealed box 9 and connected to the sealed box 9; wherein, a microwave generator 6 is installed on the inner top of the sealed box 9, fans 2 are installed on both sides of the sealed box 9, and a temperature and humidity sensor 12 is arranged on the top of the sealed box 9.

[0021] The present invention provides a technical solution for testing rock and soil. When testing rock and soil, a sealed box 9 is opened and the rock and soil is placed inside. A vacuum unit is then used to evacuate the interior of the sealed box 9. Saturated water is then injected into the sealed box 9 through a water storage unit to humidify the rock and soil. When drying the rock and soil, the water inside the sealed box 9 is pumped back into the water storage unit. The microwave generator 6 is then activated, and the microwave heating time and power are adjusted. A temperature and humidity sensor 12 monitors the temperature and humidity in the drying chamber in real time, transmitting the data to the microwave generator 6. Based on this real-time monitoring data, the microwave controller dynamically adjusts the microwave power and drying time to ensure uniformity and stability during the sample drying process. A mass testing unit accurately measures the mass change of the rock sample. When the mass of the mass testing unit remains unchanged, the rock sample is considered completely dried. When dry, the microwave generator 6 automatically stops, and the fan 2 is activated to cool the sample, completing the drying process. Repeating the saturation and drying processes of the rock sample completes the sample drying and wetting cycle, with the number of cycles set according to test requirements.

[0022] The water storage unit includes a water tank 1 arranged on one side of a sealed box body 9, a water pump 3 arranged between the water tank 1 and the sealed box body 9, and a water pipe connected to the water pump 3, wherein the two ends of the water pipe are respectively connected to the water tank 1 and the sealed box body 9, and a water control switch 4 is provided on the water pipe, which is arranged between the water tank 1 and the sealed box body 9 through the water control switch 4.

[0023] Water is injected into the water tank 1 in advance, and the water can be input into the sealed box body 9 through the water pump 3. The connection between the water tank 1 and the sealed box body 9 can be cut off by the provided water control switch 4, and the sealed box body 9 is sealed.

[0024] The vacuum unit includes: a vacuum pump 11 arranged on the other side of the sealed box 9; an air pipe installed on the vacuum pump 11; a switch 10 is installed on the top of the sealed box 9, and the free end of the air pipe is connected to the sealed box 9 through the switch 10.

[0025] The interior of the sealed box 9 can be evacuated into a vacuum state through the vacuum pump 11 provided in the air pipe, and the sealed box 9 can be sealed through the switch 10. After the switch 10 is closed, the sealed box is in a sealed state.

[0026] The mass measurement unit comprises: a mass measurement sensor 5 installed at the bottom of a sealed box 9; a water-permeable partition 8 installed on the top of the mass measurement sensor 5; wherein the top of the water-permeable partition 8 is used to place a rock sample 7.

[0027] The mass of the rock and soil mass can be measured by the provided mass measurement sensor 5 .

[0028] A water level line is provided on the inner wall of the sealed box 9 , and the water level line is located between the microwave generator 6 and the rock sample 7 .

[0029] Workflow: Open the top cover of the sealed box 9 and place the rock sample on the water-permeable partition 8. At this time, the water control switch 10 is in the closed state. Buckle the top cover of the sealed box 9, turn on the vacuum pump 11, turn on the vacuum switch 10, press the top cover so that the top cover and the box are tightly sealed under the action of the negative pressure of the vacuum pump, and then continue to vacuum for more than 2 hours. After the vacuum is completed, open the water control switch 3 to allow saturated water to enter from the bottom of the sealed box 9, gradually covering the rock sample and reaching the water level line below the fan 2. Then close the water control switch 3 and the vacuum switch 10, and turn off the vacuum pump 11;

[0030] Turn on the water control switch 3 and the microwave generator 6 switch 10, and adjust the microwave heating time and power. The temperature and humidity sensor 12 monitors the temperature and humidity in the drying chamber in real time and transmits the data to the microwave generator 6. Based on the real-time monitoring data, the microwave controller dynamically adjusts the microwave power and drying time to ensure the uniformity and stability of the sample drying process. The mass change of the rock sample is accurately measured by the mass testing unit. When the mass of the mass testing unit does not change, the rock sample is completely dried. When dryness is achieved, the microwave generator 6 automatically stops and the fan 2 is activated to cool the sample, completing the drying process. Repeating the saturation and drying processes of the rock sample completes the sample's wet-dry cycle. The number of cycles can be set according to the test requirements.

[0031] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A microwave drying type rock and soil sample dry-wet cycle device, characterized in that: include: A sealed box (9), wherein the rock sample (7) is placed inside the sealed box (9); A mass measuring unit, arranged inside the sealed box (9), for measuring the mass of the rock sample (7); A water storage unit is arranged on one side of the sealed box (9) and connected to the sealed box (9), and is used to inject water into and extract water from the interior of the sealed box (9); A vacuum unit is arranged at the other end of the sealed box (9) and connected to the sealed box (9); A microwave generator (6) is installed on the inner top of the sealed box (9), and fans (2) are installed on both sides of the sealed box (9).

2. The microwave drying type rock and soil sample dry-wet cycle device according to claim 1, characterized in that: A temperature and humidity sensor (12) is arranged on the top of the sealed box (9).

3. The microwave drying type rock and soil sample dry-wet cycle device according to claim 1, characterized in that: The water storage unit comprises a water storage tank (1) arranged on one side of the sealed box (9), a water pump (3) arranged between the water storage tank (1) and the sealed box (9), and a water delivery pipe connected to the water pump (3), wherein both ends of the water delivery pipe are respectively connected to the water storage tank (1) and the sealed box (9).

4. The microwave drying type rock and soil sample dry-wet cycle device according to claim 1, characterized in that: The vacuum unit comprises: a vacuum pump (11) arranged on the other side of the sealed box (9); An air delivery pipe installed on the vacuum pump (11); A switch (10) is installed on the top of the sealed box (9), and the free end of the gas pipe is connected to the sealed box (9) through the switch (10).

5. The microwave drying type rock and soil sample dry-wet cycle device according to claim 1, characterized in that: The quality measurement unit includes: A mass measurement sensor (5) installed at the bottom of the sealed box (9); a water-permeable partition (8) mounted on top of the mass measurement sensor (5); The top of the permeable partition (8) is used to place the rock sample (7).

6. The microwave drying type rock and soil sample dry-wet cycle device according to claim 1, characterized in that: A water level line is provided on the inner wall of the sealed box (9), and the water level line is located between the microwave generator (6) and the rock sample (7).

7. The microwave drying type rock and soil sample dry-wet cycle device according to claim 3, characterized in that: A water control switch (4) is provided on the water delivery pipe, and the water control switch (4) is arranged between the water storage tank (1) and the sealed box body (9).

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