Rock-soil body low-temperature internal circulation drying box and using method thereof

Abstract

The invention discloses a rock-soil body low-temperature internal circulation drying box and a using method thereof, and aims to solve the problems that an existing drying box is low in drying efficiency, high in energy consumption and poor in drying effect when treating a rock-soil body. The drying box comprises a box body, a storage rack rotating module, a heating module, a dehumidifying module and other key components. The material placing frame rotating module is driven by a motor, so that the rock-soil body is uniformly heated in the drying process; the heating module is matched with the soaking module to maintain a constant low-temperature environment in the box body; the dehumidification module is responsible for extracting humid gas in the box body, and the humid gas is recycled into the box body after being dried, so that an internal circulation system is formed; meanwhile, the box body is provided with a pressure release valve to ensure safety, and each part is compact in structure and high in integration level; by the adoption of the device, the drying efficiency of the rock-soil body can be remarkably improved, energy consumption is reduced, and meanwhile the drying effect is guaranteed; due to the unique design of the internal circulation system, the influence of external humidity on the drying process is effectively avoided, and more accurate and reliable drying conditions are provided for rock-soil body experiments.

Description

Technical Field

[0001] The present invention relates to the technical field of drying devices, and in particular to a rock and soil body low-temperature internal circulation drying box and a use method thereof. Background Art

[0002] In the research and practice of geological engineering, civil engineering and materials science, the drying of rock and soil is an indispensable link. Especially when conducting indoor tests on rock and soil, it is often necessary to perform dry-wet cycles on the rock and soil to simulate the physical and chemical changes in the natural environment. Traditional methods of drying rock and soil mostly use electric heating blast drying ovens. Compared with single electric heating drying ovens or blast drying ovens, this type of drying oven has a certain improvement in drying efficiency and can generally meet general test needs.

[0003] However, there are still some significant problems in the application of existing electric blast drying ovens. First, the design of electric blast drying ovens does not fully consider the impact of air humidity on the drying effect. In an environment with high humidity, the humid air in the drying oven will not only reduce the drying efficiency, but also consume a lot of energy to heat these ineffective water vapor, which will eventually lead to poor drying effect and increased energy consumption. Secondly, in order to simulate the temperature environment under natural conditions, the drying oven usually needs to work at a lower temperature (such as 30 to 40 degrees Celsius). However, the existing drying devices on the market are often complex in design and inefficient under low temperature conditions. In order to achieve the ideal drying effect, the drying temperature has to be increased or the drying time has to be extended, which not only increases energy consumption, but may also have an adverse effect on the physical properties of the rock and soil.

[0004] For example, CN116753686B discloses a constant temperature drying oven for laboratory use, including a shell, a heating fan and an exhaust assembly. The shell is provided with a heating chamber, an air duct chamber and a drying chamber which are interconnected in pairs. The drying chamber stores objects to be dried. The heating fan can inhale the air in the drying chamber and heat it. The heating fan discharges the heated air into the air duct chamber. The exhaust assembly discharges the hot air in the air duct chamber evenly into the drying chamber. The exhaust assembly includes an exhaust duct and a windward plate. The exhaust duct connects the air duct chamber and the drying chamber. By setting up three groups of exhaust ducts at upper, middle and lower levels, hot air is introduced into spaces of different heights in the drying chamber, and three groups of windward plates at upper, middle and lower levels are set up so that the hot air discharged from the exhaust ducts impacts the windward plates, and the hot air is further dispersed in the drying chamber to promote the mixing of the hot air with the original gas in the drying chamber, promote the uniform mixing of the hot air, and improve the drying effect; the drying box realizes the uniform distribution of hot air in the drying chamber through the design of the heating fan and the exhaust component, thereby improving the drying effect; however, it is not specially designed for the problem of air humidity, so the drying efficiency is limited in an environment with high humidity.

[0005] For another example, CN117516124A discloses a laboratory drying oven, which relates to the technical field of drying ovens, and comprises a box body, wherein an upper door and a lower door are arranged at the front end of the box body, wherein the upper door is rotatably connected to the upper end of the box body through a hinge seat, and the lower door is rotatably connected to the lower end of the box body through another hinge seat, and a control console is arranged on the left side of the front end of the box body, wherein an air-drying component is arranged inside the upper end of the box body, and a drying component is arranged inside the lower end of the box body; a collecting chamber is arranged at the bottom of the box body; a water collecting tank for collecting waste liquid is arranged inside the collecting chamber; the present invention accelerates the flow of air through a ventilation fan and a ventilating fan to achieve the effect of air drying, and then controls the rotation speed of the ventilation fan through the control console to adjust the wind speed, thereby controlling the time required for air drying; greatly improves the efficiency of drying objects, and facilitates real-time monitoring of the collected water level height inside the water collecting tank through the arrangement of a water level buoyancy measuring rod and a buoyancy plate; facilitates the discharge operation of the water body inside the water collecting tank; the drying oven improves the drying efficiency by accelerating the flow of air, but also does not consider the humidity control problem, and has a relatively complex structure.

[0006] In summary, the existing rock and soil drying device has the problems of low drying efficiency, high energy consumption and unstable drying effect when dealing with high humidity environment. Therefore, it is necessary to develop a new type of rock and soil drying device to achieve low temperature, high efficiency and energy-saving drying effect through optimized structural design and technological innovation. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a low-temperature internal circulation drying box for rock and soil and a method for using the same, so as to solve the problems of low drying efficiency, high energy consumption and unsatisfactory drying effect existing in the existing rock and soil drying devices during the processing process; especially when the air humidity is high, the existing electric blast drying box cannot effectively cope with it, resulting in the limitations of low drying efficiency and serious energy waste.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: a low-temperature internal circulation drying box for rock and soil, comprising a box body for accommodating the rock and soil body, a material rack rotation module is arranged on the box body, and is connected with the material rack in the box body through a transmission mechanism, which is used to drive the material rack to rotate; a heating module for providing heat is installed on the inner wall of the box body; it also comprises a dehumidification module, which is connected to the box body, and is used to extract the humid gas in the box body and dry it, and then send the dried gas back to the box body.

[0009] In a preferred embodiment, the box is sealed and exchanges gas with the dehumidification module to form an internal circulation system. The box is provided with a door, and the two are rotatably connected by a rotating shaft. A sealing ring matching the box is provided on the inside of the door to isolate external gas.

[0010] In a preferred solution, the material rack rotation module includes a motor and a transmission shaft. The motor drives the transmission shaft to rotate. The transmission shaft passes through the rear wall of the box and is connected to the transmission shaft in the box. The transmission shaft in the box is detachably connected to the material rack, thereby driving the material rack to rotate.

[0011] In a preferred solution, the heating module is installed on the upper and lower sides of the inner wall of the box, and the heating temperature is controlled by a heating module controller. The heating module controller integrates a temperature sensor to maintain a constant temperature inside the box; a heat equalization module is installed on the heating module to make the heat emitted by the heating module more uniform.

[0012] In the preferred scheme, the dehumidification module is installed on the left side of the box, and the dehumidification module is integrated with a gas circulation device and a dehumidification device; the gas circulation device is used to circulate the gas in the box, so that the gas with higher humidity in the box enters the dehumidification module; the dehumidification device dries the humid gas and then passes it into the box again through the gas circulation device via the hole set above the box.

[0013] In a preferred embodiment, the gas circulation device draws the hot and humid air above the interior of the box into a dehumidifier. After the hot and humid air passes through the dehumidifier, moisture in the hot and humid air is removed, and the condensed moisture is discharged from the device through a drain pipe below the dehumidifier. The hot air with moisture removed passes through a duct and the hole at the bottom left side of the box and re-enters the box for internal circulation.

[0014] In a preferred solution, a drain port is installed at the lower portion of the dehumidification module, which is connected to a drain pipe below the dehumidification device and is used to discharge the liquid collected by the dehumidification device out of the device.

[0015] In a preferred solution, a pressure relief valve is installed on the upper part of the box body to relieve the pressure in the box body and prevent reverse flow at the same time.

[0016] In a preferred solution, the box body is provided with an observation window, and a handle, a dehumidification module controller, a material rack rotation module controller, a motor of the material rack rotation module, a heating module controller, and a dehumidification module controller are also installed outside the box body. The material rack rotation module controller is connected to a power supply, and a main power switch is provided on the box body to control the on and off of the power supply, the motor and each controller. The material rack rotation module controller is connected to and controls the material rack rotation module, and the dehumidification module controller is connected to and controls the dehumidification module.

[0017] A method for using a rock and soil low temperature internal circulation drying box is to use the rock and soil low temperature internal circulation drying box described in the above one, and the method comprises the following steps: Step 1: A rock and soil low-temperature internal circulation drying box is installed and debugged to be qualified. After confirming that all parts are installed in place, pull the handle of the box door to open the box door, take out the material rack from the transmission shaft in the box, and clean the material rack, the transmission shaft in the box and the inner wall of the box respectively; Step 2: Connect the cleaned material rack to the drive shaft in the box, weigh the mass of the rock and soil to be dried, and after weighing, put the rock sample or soil sample into the four material racks, close the door, check the surrounding environment of the drying box, and check whether the door is airtight; Step 3: After turning on the main power switch, turn on the dehumidification module controller. The gas circulation device in the dehumidification module circulates the air in the box, and the dehumidification device dries the existing air in the box; Step 4: Start the rack rotation module controller to make the rock and soil on the rack rotate at a uniform speed so that the rock and soil to be dried can be heated evenly; Step 5: Start the heating module controller, keep the temperature in the box at the preset value through the temperature control module, and evenly distribute the heat through the heat-saturating module; the moisture emitted by the rock and soil during the drying process is captured by the dehumidification module and discharged through the drainage pipe through the drainage port of the dehumidification module; Step 6: After the drying time reaches the preset time, the rock and soil body is taken out from the material rack, and the weight is weighed and compared with the weight before drying. After weighing, the rock and soil body is put into the material rack to continue drying. The rock and soil body is taken out and weighed every hour until the weight remains unchanged twice. The total drying time is the drying time of this rock and soil body; Step 7: Carry out subsequent tests after drying is completed.

[0018] The present invention provides a rock and soil low-temperature internal circulation drying box and a method of using the same, which have the following beneficial effects: 1. The present invention effectively solves the problems of low drying efficiency, high energy consumption and unsatisfactory drying effect in the existing rock and soil drying device during the processing process. In particular, in an environment with high air humidity, the performance of the traditional electric heating blast drying box is limited, resulting in low drying efficiency and serious energy consumption. 2. The internal circulation system adopted by the present invention realizes the internal circulation of gas between the box and the dehumidification module through the precise design of the dehumidification module and the circulation module. This design avoids direct exchange with the outside air, thereby significantly improving the drying efficiency and energy saving effect. At the same time, the design of the internal circulation system also shortens the time required for drying; 3. The rack rotating module of the present invention ensures that the rock and soil can be evenly heated during the drying process by rotating the rack. This design not only improves the drying effect, but also reduces the experimental error, making the experimental results more accurate and reliable; 4. Compared with existing devices on the market, the drying oven of the present invention can achieve efficient drying effect at a lower temperature of 30 to 40 degrees Celsius. This temperature range is closer to the temperature under natural conditions, which not only meets the experimental needs, but also achieves energy-saving and efficient drying effect; 5. The low-temperature internal circulation design of the present invention enables the drying box to significantly reduce energy consumption while achieving the same drying effect, which not only conforms to the current development trend of green environmental protection, but also reduces the user's use cost; 6. The pressure relief valve provided on the box of the present invention can release the pressure in time when the pressure inside the box increases, thereby ensuring the safe operation of the equipment. At the same time, the compact design and high integration of each part also improve the reliability and stability of the equipment; 7. The detachable design of the material rack of the present invention allows it to be taken out from the transmission shaft in the box body, which is convenient for cleaning and replacement, keeps the box body clean and tidy, avoids the contamination of the next batch of rock and soil by the residual rock and soil, and is convenient for users to clean and maintain; 8. The present invention is mainly used for low-temperature drying treatment in rock and soil laboratories. Through practical application, it is expected to significantly improve drying efficiency, reduce energy consumption, and enhance the accuracy and reliability of experimental results, which is of great significance for promoting the progress and development of rock and soil laboratory technology. 9. The various parts of the present invention have clear division of labor and high structural integration, which makes the equipment easier and more convenient to operate. Users can easily complete the drying task without complicated settings and adjustments. At the same time, high reliability and stability also ensure the long-term stable operation of the equipment. 10. The present invention successfully solves the problems existing in the prior art through innovative design and exquisite craftsmanship, and achieves efficient, energy-saving, safe and reliable drying effects. This invention is of great significance for promoting the development and progress of rock and soil laboratory technology; at the same time, the drying box and drying method have a wide range of applications, not only suitable for research and experiments in the field of geotechnical engineering, but also can be expanded to other scientific research that requires low-temperature drying treatment, showing strong market potential and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings and implementation examples: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a partial schematic diagram of the overall structure of the present invention; In the figure: box body 1, material rack 2, heating module 3, dehumidification module 4, transmission shaft 5, material rack 6, heat equalization module 7, transmission shaft 8 in the box body, box door 9, observation window 10, heating module controller 11, sealing ring 12, gas circulation device 13, drain port 14, drain pipe 15, pressure relief valve 16, dehumidification device 17, duct 18, hole 19, shaft 20, main power switch 21, dehumidification module controller 22, material rack rotation module controller 23, handle 24. DETAILED DESCRIPTION

[0020] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments: Example 1 like Figures 1 to 3 As shown, a low-temperature internal circulation drying box for rock and soil comprises a box body 1 for accommodating the rock and soil body, a material rack rotating module 2 is arranged on the box body 1, and is connected with the material rack 6 in the box body 1 through a transmission mechanism, and is used to drive the material rack 6 to rotate; a heating module 3 for providing heat is installed on the inner wall of the box body 1; it also comprises a dehumidification module 4, which is connected with the box body 1, and is used to extract the humid gas in the box body 1 and dry it, and then send the dried gas back to the box body 1.

[0021] In this embodiment, the box body 1 is sealed and exchanges gas with the dehumidification module 4 to form an internal circulation system. The box body 1 is provided with a box door 9, and the two are rotatably connected by a rotating shaft 20. A sealing ring 12 matching the box body 1 is provided on the inner side of the box door 9 to isolate external gas.

[0022] Furthermore, the material rack rotating module 2 includes a motor and a transmission shaft 5. The motor drives the transmission shaft 5 to rotate. The transmission shaft 5 passes through the rear wall of the box 1 and is connected to the transmission shaft 8 in the box. The transmission shaft 8 in the box is detachably connected to the material rack 6, thereby driving the material rack 6 to rotate.

[0023] Furthermore, the heating module 3 is installed on the upper and lower sides of the inner wall of the box body 1, and the heating temperature is controlled by the heating module controller 11. The heating module controller 11 integrates a temperature sensor to maintain a constant temperature inside the box body 1; a heat equalization module 7 is installed on the heating module 3 to make the heat emitted by the heating module 3 more uniform.

[0024] Furthermore, the dehumidification module 4 is installed on the left side of the box body 1, and a gas circulation device 13 and a dehumidification device 17 are integrated inside the dehumidification module 4; the gas circulation device 13 is used to circulate the gas in the box body 1, so that the gas with higher humidity in the box body 1 enters the dehumidification module 4; the dehumidification device 17 dries the humid gas and then passes it into the box body 1 again through the gas circulation device 13 and the hole 19 set above the box body.

[0025] Furthermore, the gas circulation device 13 draws the humid hot air above the interior of the box body 1 into the dehumidifier 17. After the humid hot air passes through the dehumidifier 17, the moisture in the humid hot air is removed, and the condensed moisture is discharged from the device through the drain pipe 15 below the dehumidifier 17. The hot air without moisture passes through the duct 18 and the hole 19 at the lower left side of the box body 1 and re-enters the box body 1 for internal circulation.

[0026] Furthermore, a drain port 14 is installed at the lower part of the dehumidification module 4, which is connected to a drain pipe 15 below the dehumidification device 17, and is used to discharge the liquid collected by the dehumidification device 17 out of the device.

[0027] Furthermore, a pressure relief valve 16 is installed on the upper part of the box body 1 to relieve the pressure in the box body 1 and prevent reverse flow at the same time.

[0028] Furthermore, the box body 1 is provided with an observation window 10, and a handle 24, a dehumidification module controller 22, and a material rack rotation module controller 23 are also installed outside the box body 1. The motor of the material rack rotation module 2, the heating module controller 11, and the dehumidification module controller 22, and the material rack rotation module controller 23 are all connected to the power supply. A main power switch 21 is provided on the box body 1 to control the on and off of the power supply, the motor and each controller. The material rack rotation module controller 23 is connected to and controls the material rack rotation module 2, and the dehumidification module controller 22 is connected to and controls the dehumidification module 4.

[0029] Example 2 In another preferred embodiment, based on the above embodiment 1, a method for using a rock and soil low temperature internal circulation drying box is to use the rock and soil low temperature internal circulation drying box described in the above embodiment, and the method comprises the following steps: Step 1: Installation, commissioning and preparation, ensure that a rock and soil low-temperature internal circulation drying box has been installed and commissioned, and all parts are installed in place, pull the handle 24 of the box door 9, open the box door 9, take out the material rack 6 from the transmission shaft 8 in the box, clean the material rack 6, the transmission shaft 8 in the box and the inner wall of the box 1 respectively, and ensure that the inside of the drying box is clean and free of impurities; Step 2: Place the materials and check. Reconnect the cleaned material rack 6 to the transmission shaft 8 in the box body firmly. Use accurate weighing tools to weigh the mass of the rock and soil to be dried and record it. Place the weighed rock samples or soil samples evenly into the four material racks of the material rack 6. Close the box door 9 and ensure that the sealing ring 12 is tightly matched with the box body 1 to prevent external gas from entering. Check the surrounding environment of the drying box to ensure that there are no flammable and explosive items and that the ventilation is good. Step 3: Start the dehumidification module 4, start the main power switch 21, turn on the dehumidification module controller 22, and make the air in the box start to circulate. At this time, the gas circulation device 13 inside the dehumidification module 4 will start to work, extract the hot and humid air in the box 1, and send it back to the box 1 after being processed by the dehumidification device 17; Step 4: Start the rack rotation module. Start the rack rotation module controller 23 to make the rock and soil on the rack 6 start to rotate at a uniform speed. This can ensure that the rock and soil are heated more evenly during the drying process, thereby improving the drying efficiency. Step 5: Start the heating module 3 and the temperature control, start the heating module controller 11, and set the preset temperature in the box through the temperature control module. According to the experimental requirements, the temperature is usually set between 30 and 40 degrees Celsius to simulate the temperature under natural conditions. During the drying process, the rock and soil will emit moisture, which will be captured by the dehumidification module 4 and discharged out of the drying box through the drain port 14 and the drain pipe 15; Step 6: Drying and weighing. After drying for a certain period of time (the specific time depends on the type, size and required drying degree of the rock and soil body), turn off the heating module controller 11 and the rack rotation module controller 23, open the box door 9, take the rock and soil body out of the rack 6, and weigh its mass with an accurate weighing tool, compare the mass after weighing with the mass before drying, and record the mass change; If the quality still changes, it means that the rock and soil body has not been completely dried. At this time, the rock and soil body is put back on the material rack 6 and continues to be dried according to the above steps; The rock and soil are subsequently taken out and weighed every hour until the mass of two consecutive weighings does not change. At this point, the rock and soil can be considered to be completely dry. Record the total drying time for reference and analysis in subsequent experiments.

[0030] Note: During the entire drying process, pay close attention to the operating status of the drying oven to ensure that all parts are working properly; If any abnormality or malfunction is found, stop using it immediately and contact a professional for repair; After drying, the inside of the drying box and the material rack 6 should be cleaned in time to keep them clean and hygienic.

[0031] Example 3 In another preferred embodiment, based on the above-mentioned Embodiment 1 and Embodiment 2, the present invention will be further described below in conjunction with the accompanying drawings and embodiments: Please refer to Figures 1 to 3 As shown, this embodiment discloses a rock and soil low-temperature internal circulation drying box, the structure of which mainly includes a box body 1, a material rack rotating module 2, a heating module 3 and a dehumidification module 4.

[0032] The box body 1 constitutes a relatively closed drying environment, with a box door 9 installed in front thereof, and an observation window 10 is provided on the box door 9 for convenient observation of the internal situation of the box body 1; the box door 9 is connected to the box body 1 through a rotating shaft 20, and a sealing ring 12 matching the box body 1 is provided on the inner side of the box door 9 to ensure the airtightness of the box body 1; heating modules 3 are respectively installed on the upper and lower sides of the inner wall of the box body 1, and a heat equalization module 7 is installed on the heating module 3 to ensure uniform temperature distribution in the box body 1; a motor of a material rack rotating module 2 is installed on the back of the box body 1, and the motor is connected to a transmission shaft 8 in the box body through a transmission shaft 5, thereby driving a material rack 6 placed on the transmission shaft 8 to rotate, and the material rack 6 is used to place rock and soil samples to be dried.

[0033] The dehumidification module 4 is arranged on the left side of the box body 1, and integrates a gas circulation device 13 and a dehumidification device 17 therein. The gas circulation device 13 is composed of a small fan and a duct 18, and is connected to the inside of the box body 1 through two holes 19 to realize gas exchange between the box body 1 and the dehumidification module 4; the dehumidification device 17 is used to remove moisture from the inhaled hot and humid air, and the condensed moisture is discharged through the drain port 14 at the bottom of the dehumidification module 4 and led to the outside through the drain pipe 15.

[0034] In addition, a pressure relief valve 16 is provided on the upper portion of the box body 1 for releasing the pressure generated inside the box body 1 due to the increase in temperature. The pressure relief valve 16 also has a check function to prevent external gas from entering the box body 1.

[0035] When in use, first pull the handle 18 of the box door 9 to open the box door 9, remove the material rack 6 from the transmission shaft 8 in the box, clean the material rack 6, the transmission shaft 8 in the box and the inner wall of the box 1; then put the rock sample or soil sample into the four material racks of the material rack 6, and put the material rack 6 back on the transmission shaft 8 in the box; next, start the main power switch 21, turn on the dehumidification module controller 22 to start the internal circulation of the air in the box 1. Then start the material rack rotation module controller 23 to make the rock and soil samples on the material rack 6 rotate at a uniform speed; finally, start the heating module controller 11, and keep the temperature in the box 1 constant at a preset value (such as 35 degrees Celsius) through the temperature control module; during the drying process, the moisture emitted by the rock and soil is captured by the dehumidification module 4 and discharged out of the device through the drain port 14 and the drain pipe 15.

[0036] Example 4 In another preferred embodiment, based on the above-mentioned embodiments 1, 2, and 3, it is basically the same as embodiment 3, but is different in the structure of the dehumidification module 4. In this embodiment, the gas circulation device 13 inside the dehumidification module 4 adopts a more efficient fan to increase the circulation speed of the gas, thereby further improving the drying efficiency. At the same time, the dehumidification device 17 also adopts a dehumidification technology with better performance to more effectively remove moisture from the humid hot air.

[0037] In addition, the present embodiment further adds a humidity sensor and a temperature sensor inside the box 1 to monitor the humidity and temperature conditions inside the box 1 in real time. These sensors are connected to the heating module controller 11 and the dehumidification module controller 22, and can automatically adjust the heating power of the heating module 3 and the dehumidification efficiency of the dehumidification module 4 according to the real-time monitored data, thereby achieving accurate control of the temperature and humidity inside the box 1.

[0038] The above four embodiments all demonstrate the specific implementation methods of the rock and soil low-temperature internal circulation drying box of the present invention. By adopting the technical solution of the present invention, low-temperature, high-efficiency, and energy-saving drying treatment of rock and soil can be achieved, while ensuring that the rock and soil are heated evenly and are not polluted. These advantages make the present invention have a wide range of application prospects in rock and soil laboratories.

[0039] In the preferred solution, the box body 1 is sealed and exchanges gas with the dehumidification module 4 to form an internal circulation system. The box body 1 is provided with a box door 9, and the two are rotatably connected by a rotating shaft 20. A sealing ring 12 matching the box body 1 is provided on the inner side of the box door 9 to isolate external gas. The above arrangement ensures that the humidity in the box body 1 can be precisely controlled, while avoiding the intrusion of external moisture, ensuring the maintenance of optimal humidity conditions, thereby ensuring the stable operation of the internal equipment.

[0040] In the preferred solution, the material rack rotating module 2 includes a motor and a transmission shaft 5. The motor drives the transmission shaft 5 to rotate. The transmission shaft 5 passes through the rear wall of the box body 1 and is connected to the transmission shaft 8 in the box body. The transmission shaft 8 in the box body is detachably connected to the material rack 6, thereby driving the material rack 6 to rotate. The above arrangement realizes the automatic rotation of the material rack 6, which is convenient for uniform heating or processing of the material. At the same time, the detachable connection method facilitates the replacement and maintenance of the material rack 6, thereby improving the flexibility and utilization efficiency of the equipment.

[0041] In the preferred scheme, the heating module 3 is installed on the upper and lower sides of the inner wall of the box body 1, and the heating temperature is controlled by the heating module controller 11. The heating module controller 11 is integrated with a temperature sensor to maintain a constant temperature in the box body 1; a heat equalization module 7 is installed on the heating module 3 to make the heat emitted by the heating module 3 more uniform; the above settings ensure the balance and stability of the temperature inside the box body 1, further improve the reliability and safety of the system, and also provide an ideal protection environment for the samples stored in the box body, reduce the performance changes or damage that may be caused by temperature fluctuations, and ensure the reliability of the test results.

[0042] In the preferred scheme, the dehumidification module 4 is installed on the left side of the box body 1, and the gas circulation device 13 and the dehumidification device 17 are integrated inside the dehumidification module 4; the gas circulation device 13 is used to circulate the gas in the box body 1, so that the gas with higher humidity in the box body 1 enters the dehumidification module 4; the dehumidification device 17 dries the humid gas and then passes it into the box body 1 again through the gas circulation device 13 via the hole 19 arranged above the box body; the above arrangement can significantly improve the air circulation efficiency in the box body 1, effectively remove moisture, ensure the dryness of the internal environment of the box body 1, prevent the equipment from being damaged by moisture, enhance the air permeability of the box body, and maintain the stability of the test environment in the box body 1.

[0043] In the preferred scheme, the gas circulation device 13 draws the humid hot air above the interior of the box body 1 into the dehumidifier 17. After the humid hot air passes through the dehumidifier 17, the moisture in the humid hot air is removed, and the condensed moisture is discharged from the device through the drain pipe 15 below the dehumidifier 17. The hot air without moisture passes through the duct 18 and the hole 19 at the lower left side of the box body 1 and enters the box body 1 again for internal circulation; the above arrangement effectively maintains a dry environment inside the box body 1. At the same time, the recycling of hot air improves energy utilization efficiency, reduces energy consumption, and ensures that the internal environment of the box body 1 is stable and suitable.

[0044] In the preferred solution, a drain outlet 14 is installed at the bottom of the dehumidification module 4, which is connected to the drain pipe 15 below the dehumidification device 17, and is used to discharge the liquid collected by the dehumidification device 17 out of the device; the above arrangement can ensure that all moisture generated during the dehumidification process can be effectively discharged to avoid water accumulation causing bacterial growth or affecting the dehumidification efficiency. At the same time, the close connection between the drain outlet 14 and the drain pipe 15 ensures the smoothness and sealing of drainage.

[0045] In the preferred solution, a pressure relief valve 16 is installed on the upper part of the box body 1 to relieve the pressure in the box body 1 and prevent reverse flow at the same time; the above arrangement enables the box body 1 to automatically release the pressure when facing excessive pressure, effectively preventing safety hazards caused by excessive pressure. At the same time, the non-return function ensures that the gas or liquid will not flow in the reverse direction, thereby ensuring the stability of the internal environment of the box body 1.

[0046] In the preferred embodiment, the box body 1 is provided with an observation window 10, and a handle 24 is installed outside the box body 1; the above configuration makes it convenient for the user to visually view the internal conditions of the box body 1 through the observation window 10. At the same time, the configuration of the handle 24 makes it convenient for the user to open and close the box body 1, thereby improving the convenience of user operation.

[0047] In the preferred scheme, a dehumidification module controller 22 and a material rack rotation module controller 23 are also installed outside the box body 1. The motor, heating module controller 11 and dehumidification module controller 22 of the material rack rotation module 2 are all connected to the power supply. A main power switch 21 is provided on the box body 1 to control the on-off of the power supply, the motor and each controller. The material rack rotation module controller 23 is connected to and controls the material rack rotation module 2, and the dehumidification module controller 22 is connected to and controls the dehumidification module 4. The above settings realize the full automatic control of the entire drying and dehumidification device, the real-time control system, and the intelligent management. The heating module controller 11 can adjust the working temperature of the heating module to ensure that the temperature in the box is appropriate; the dehumidification module 4 adjusts the humidity through the dehumidification module controller 22 to keep the environment in the box dry, thereby effectively improving the drying efficiency and quality of the material.

[0048] In summary, the present invention proposes a rock and soil low-temperature internal circulation drying box and a method for using the same. The invention effectively solves the problems of low drying efficiency, high energy consumption and unsatisfactory drying effect in the existing rock and soil drying device during the processing process. In particular, in an environment with high air humidity, the performance of the traditional electric heating blast drying box is limited, resulting in low drying efficiency and serious energy consumption. In view of this technical problem, the drying box of the present invention adopts a unique internal circulation system design, which realizes the internal circulation of gas between the box body 1 and the dehumidification module 4 through the dehumidification module 4 and the circulation module, avoiding direct exchange with the outside air. This design is relatively novel in the field of rock and soil drying and can effectively improve the drying efficiency and energy saving effect. In addition, the rock and soil in the traditional drying box is often stationary, resulting in uneven heating, while the material rack rotating module 2 in the present invention drives the material rack 6 to rotate through the motor, so that the rock and soil can be evenly heated during the drying process. This design has a high novelty in the field of drying boxes. At the same time, the drying box can achieve efficient drying effect at a relatively low temperature of 30 to 40 degrees Celsius, which is different from the existing ones on the market. Compared with the existing devices, low-temperature drying is not only closer to the temperature under natural conditions, but also can effectively reduce the damage of thermal effects to rock and soil bodies; more importantly, the drying box of the present invention integrates components such as heating module 3, dehumidification module 4, circulation module and material rack rotation module 2 into one, forming a highly integrated design, which not only improves the compactness of the structure of the drying box, but also makes its operation easier and more efficient to use; the drying box has strong scalability and is equipped with an intelligent control system to monitor and adjust the temperature, humidity and rotation speed inside the box in real time, thereby realizing precise control of the drying process and further improving the stability and controllability of the drying operation. Users can also remotely monitor the operating status of the drying box through a mobile phone APP, realize remote control and fault diagnosis, greatly improve the convenience and practicality of the equipment, and bring revolutionary changes to the field of rock and soil drying; in short, the drying box of the present invention has set a new benchmark in the field of rock and soil drying with its innovative design concept and excellent performance, and provided strong technical support for the green development of related industries.

Claims

1. A rock and soil low temperature internal circulation drying box, characterized in that: The invention comprises a box (1) for accommodating rock and soil bodies, wherein a material rack rotating module (2) is arranged on the box (1) and is connected to a material rack (6) in the box (1) via a transmission mechanism, and is used to drive the material rack (6) to rotate; a heating module (3) for providing heat is installed on the inner wall of the box (1); and a dehumidification module (4) is further included, which is connected to the box (1) and is used to extract humid gas in the box (1) and dry it, and then return the dried gas to the box (1).

2. A rock and soil low temperature internal circulation drying box according to claim 1, characterized in that: The box body (1) is sealed and exchanges gas with the dehumidification module (4) to form an internal circulation system. The box body (1) is provided with a box door (9), and the two are rotatably connected via a rotating shaft (20). A sealing ring (12) matching the box body (1) is provided on the inner side of the box door (9) to isolate external gas.

3. A rock and soil low temperature internal circulation drying box according to claim 2, characterized in that: The material rack rotating module (2) comprises a motor and a transmission shaft (5), the motor drives the transmission shaft (5) to rotate, the transmission shaft (5) passes through the rear wall of the box body (1) and is connected to a transmission shaft (8) in the box body, and the transmission shaft (8) in the box body is detachably connected to the material rack (6), thereby driving the material rack (6) to rotate.

4. A rock and soil low temperature internal circulation drying box according to claim 3, characterized in that: The heating module (3) is installed on the upper and lower sides of the inner wall of the box (1), and the heating temperature is controlled by a heating module controller (11). The heating module controller (11) is integrated with a temperature sensor to maintain a constant temperature in the box (1); a heat equalization module (7) is installed on the heating module (3) to make the heat emitted by the heating module (3) more uniform.

5. The rock and soil low temperature internal circulation drying box according to claim 4, characterized in that: The dehumidification module (4) is installed on the left side of the box body (1), and a gas circulation device (13) and a dehumidification device (17) are integrated inside the dehumidification module (4); the gas circulation device (13) is used to circulate the gas in the box body (1), so that the gas with high humidity in the box body (1) enters the dehumidification module (4); the dehumidification device (17) dries the humid gas and then passes it through the gas circulation device (13) and into the box body (1) again through a hole (19) arranged above the box body.

6. A rock and soil low temperature internal circulation drying box according to claim 5, characterized in that: The gas circulation device (13) draws the hot and humid air above the interior of the box (1) into the dehumidifying device (17). After the hot and humid air passes through the dehumidifying device (17), moisture in the hot and humid air is removed. The condensed moisture is discharged from the device through the drainage pipe (15) below the dehumidifying device (17). The hot air with moisture removed passes through the duct (18) and the hole (19) at the lower left side of the box (1) and re-enters the box (1) for internal circulation.

7. A rock and soil low temperature internal circulation drying box according to claim 6, characterized in that: The dehumidification module (4) is provided with a drainage port (14) at the bottom thereof, which is connected to a drainage pipe (15) below the dehumidification device (17) and is used to discharge liquid collected by the dehumidification device (17) out of the device.

8. The rock and soil low-temperature internal circulation drying box according to claim 7, characterized in that: A pressure relief valve (16) is installed on the upper part of the box body (1) to relieve the pressure in the box body (1) and prevent reverse flow at the same time.

9. A rock and soil low temperature internal circulation drying box according to claim 8, characterized in that: The box body (1) is provided with an observation window (10). A handle (24), a dehumidification module controller (22), and a material rack rotation module controller (23) are also installed outside the box body (1). The motor, heating module controller (11), and dehumidification module controller (22) of the material rack rotation module (2) are connected to a power supply. A main power switch (21) is provided on the box body (1) to control the connection and disconnection of the power supply, the motor, and each controller. The material rack rotation module controller (23) is connected to and controls the material rack rotation module (2), and the dehumidification module controller (22) is connected to and controls the dehumidification module (4).

10. A method for using a rock and soil low-temperature internal circulation drying box, characterized in that: Using a rock and soil low-temperature internal circulation drying oven as described in any one of claims 1 to 9, the method comprises the following steps: Step 1: After the installation and commissioning of a low-temperature internal circulation drying box for rock and soil is qualified and all parts are confirmed to be installed in place, the handle (24) of the box door (9) is pulled to open the box door (9), the material rack (6) is taken out from the transmission shaft (8) in the box body, and the material rack (6), the transmission shaft (8) in the box body (1) and the inner wall of the box body (1) are cleaned respectively; Step 2: Connect the cleaned material rack (6) to the transmission shaft (8) in the box, weigh the mass of the rock and soil to be dried, and after weighing, place the rock sample or soil sample into the four material racks of the material rack (6), close the box door (9), check the surrounding environment of the drying box, and check whether the box door (9) is airtight; Step 3: After turning on the main power switch (21), the dehumidification module controller (22) is turned on, and the gas circulation device (13) in the dehumidification module (4) circulates the air in the box body, while the dehumidification device (17) dries the existing air in the box body (1); Step 4: Start the rack rotation module controller (23) to make the rock and soil on the rack (6) rotate at a uniform speed so that the rock and soil to be dried can be heated evenly; Step 5: Start the heating module controller (11), maintain the temperature in the box at a preset value through the temperature control module, and evenly distribute the heat through the heat-averaging module (7); the moisture distributed by the rock and soil during the drying process is captured by the dehumidification module (4) and discharged through the drainage port (14) of the dehumidification module (4) and the drainage pipe (15); Step 6: After the drying time reaches the preset time, the rock and soil body is taken out from the material rack (6), and the mass is weighed and compared with the mass before drying. After weighing, the rock and soil body is put back into the material rack (6) to continue drying. The rock and soil body is taken out and weighed every hour until the mass remains unchanged twice. The total drying time is the drying time of the rock and soil body. Step 7: Carry out subsequent tests after drying is completed.

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