A soil sample drying apparatus

Abstract

The utility model relates to a kind of soil sample drying device, it includes drying cabinet and drying assembly, sample box of box-like drawer type is equipped in drying cabinet, the top of drying cabinet is equipped with air pipe, the bottom of drying cabinet is opened with vent, the bottom of sample box is equipped with the baffle of opening several water draining holes, water draining tray is equipped below baffle, drying assembly includes fan and heating pipe being arranged in air pipe, turning over component being arranged in sample box, turning over component includes pivot, fixed mounting turning over leaf on pivot, the driving device for driving pivot rotation carries out driving turning over leaf rotation, several leakage holes are opened in turning over leaf, the diameter of leakage hole is greater than the diameter of water draining hole.The utility model's soil sample drying device is through the effect of each component, jointly realizes the comprehensive effect of shortening air-drying period, improving drying efficiency and quality.

Description

Technical Field

[0001] This utility model belongs to the field of soil sample drying technology, and specifically relates to a soil sample drying device. Background Technology

[0002] In the field of soil environmental monitoring, accurate and reliable analysis of soil samples is fundamental to obtaining critical environmental data. Freshly collected soil samples typically have a high moisture content; if tested directly without proper treatment, this can severely impact the accuracy and comparability of subsequent physical, chemical, and biological analyses. Therefore, soil samples must be dried before laboratory analysis to effectively remove excess moisture and ensure the scientific validity of the test data.

[0003] Currently, commonly used methods for drying soil samples mainly include natural air drying and heat drying. Heat drying typically involves spreading the soil sample flat in an open container and accelerating moisture evaporation through external hot air. However, this method has significant limitations in practical applications: First, due to uneven distribution of the hot air flow and the thickness of the soil layer, the degree of heating varies significantly between different layers within the container, leading to inconsistent drying between the bottom and top layers, easily causing localized over-drying or under-drying, affecting the overall drying quality. Second, relying solely on hot air convection results in a limited moisture evaporation rate and low drying efficiency, making it difficult to meet the processing needs of large batches of time-sensitive samples. Third, the open heating environment is prone to introducing external contamination and also presents problems such as high energy consumption and an uncomfortable, humid working environment. Utility Model Content

[0004] The purpose of this invention is to provide a soil sample drying device that can achieve uniformity, efficiency and controllability in the soil sample drying process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A soil sample drying apparatus includes a drying chamber with a cavity and a drying assembly disposed on the drying chamber.

[0007] Specifically, the drying oven has a sample box in the shape of a drawer in its cavity. The top of the drying oven has an air duct that communicates with the cavity at the bottom and with the outside at the top. The bottom of the drying oven has a ventilation opening that communicates with the cavity. The bottom of the sample box has a partition with several drainage holes. Below the partition is a pull-out drainage tray.

[0008] Specifically, the drying assembly includes a fan and a heating tube disposed in the air duct, and a flipping assembly disposed in the sample box. The flipping assembly includes a rotating shaft rotatably disposed in the sample box, flipping blades fixedly mounted on the rotating shaft, and a driving device connected to the rotating shaft for driving the rotating shaft to rotate and thus driving the flipping blades to rotate. The flipping blades have a plurality of drainage holes, the diameter of which is larger than the diameter of the drainage holes.

[0009] In some embodiments, the flipping blade extends outward from the rotating shaft and obliquely in the direction of rotation of the rotating shaft, and the end of the flipping blade away from the rotating shaft can contact the partition.

[0010] More preferably, the flipping leaf comprises a first part and a second part that are fixedly connected or integrally formed from the rotating axis outward, the leakage hole is disposed on the first part, and the tilt angle of the first part is smaller than the tilt angle of the second part.

[0011] In some embodiments, the sample box is divided into a device cavity and a sample cavity, the driving device is disposed in the device cavity, the sample cavity is rectangular, and a plurality of rotating shafts are spaced apart along the width direction of the sample cavity. Each rotating shaft extends along the length direction of the sample cavity, and each rotating shaft is provided with a flipping blade extending from one end to the other.

[0012] More preferably, the drive device includes a motor and a transmission assembly disposed between the output shaft of the motor and the plurality of rotating shafts.

[0013] In some specific and preferred embodiments, the rotating shaft includes a first rotating shaft, a second rotating shaft, and a third rotating shaft arranged sequentially from one end to the other along the width direction of the sample chamber. One end of the first rotating shaft, the second rotating shaft, and the third rotating shaft extends into the device chamber. The driving device includes a motor, a first synchronous pulley, a second synchronous pulley, a third synchronous pulley, a fourth synchronous pulley, a first synchronous belt, and a second synchronous belt. The output shaft of the motor is coaxially connected to the first rotating shaft. The first synchronous pulley is sleeved on the first rotating shaft, the second synchronous pulley and the third synchronous pulley are sleeved on the second rotating shaft, the fourth synchronous pulley is sleeved on the third rotating shaft, the first synchronous belt is sleeved on the first synchronous pulley and the second synchronous pulley, and the second synchronous belt is sleeved on the third synchronous pulley and the fourth synchronous pulley.

[0014] In some embodiments, the heating element is positioned above the fan.

[0015] In some embodiments, the inner walls of the cavity located on both sides of the sample box are arc-shaped structures, and the arc-shaped structures are recessed in a direction away from the center of the cavity.

[0016] In some embodiments, the sample box is square.

[0017] In some embodiments, there is a gap between the bottom of the sample box and the inner bottom surface of the cavity.

[0018] In some embodiments, a fixed corner bracket is provided in the cavity, and the sample box is removably mounted on the fixed corner bracket.

[0019] In some embodiments, a dustproof mesh is snapped into the vent.

[0020] In some embodiments, a drying tube is inserted into the top of the air duct, and a baffle with several air holes is provided inside the drying tube, on which a drying package is placed.

[0021] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] The soil sample drying device of this invention, through the setting of the turning component, continuously turns and stirs the soil in the sample box, effectively breaking the dry crust on the surface and turning the moist soil inside to the surface, thereby significantly promoting the evaporation and diffusion of moisture and achieving uniform drying of the soil. Together with the function of other components, it achieves the comprehensive effect of shortening the drying cycle and improving drying efficiency and quality. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the soil sample drying device in Example 1;

[0024] Figure 2 This is a schematic diagram of the exploded structure of the soil sample drying device in Example 1;

[0025] Figure 3 This is a schematic diagram of the sample box structure of the soil sample drying device in Example 1;

[0026] Figure 4 This is a top view schematic diagram of the soil sample drying device in Example 1;

[0027] Figure 5 for Figure 4 A schematic diagram of the three-dimensional cross-sectional structure at point AA;

[0028] Figure 6 This is a front view schematic diagram of the soil sample drying device in Example 1;

[0029] Figure 7 for Figure 6 A schematic diagram of the cross-sectional structure at point BB.

[0030] In the above attached figures,

[0031] 1. Drying oven; 11. Cavity; 12. Sample box; 121. Equipment cavity; 122. Sample cavity; 13. Air duct; 14. Ventilation outlet; 141. Dustproof net; 15. Partition; 151. Drain hole; 16. Drain tray; 17. Fixed corner bracket; 18. Drying tube; 181. Baffle; 1811. Air vent; 19. Desiccant pack;

[0032] 21. Fan; 22. Heating element; 23. Turning assembly; 2311. First rotating shaft; 2312. Second rotating shaft; 2313. Third rotating shaft; 232. Turning blade; 2321. First part; 2322. Second part; 23211. Leakage hole; 2331. Motor; 2332. First synchronous pulley; 2333. Second synchronous pulley; 2334. Third synchronous pulley; 2335. Fourth synchronous pulley; 2336. First synchronous belt; 2337. Second synchronous belt. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the reader's browsing of the appendix. Figure 1 The orientation or positional relationship observed at the time is only for the purpose of describing this utility model, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral part, or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this invention according to the specific circumstances.

[0036] In the description of the embodiments of this utility model, it should be understood that "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0037] The foregoing disclosure provides many different implementations or examples for carrying out different structures of the present invention. To simplify the disclosure of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0038] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0039] Example 1

[0040] This embodiment provides a soil sample drying device, such as... Figures 1 to 7 As shown, it includes a drying chamber 1 and a drying assembly.

[0041] In this embodiment, a cavity 11 is provided inside the drying oven 1. The inner walls of the cavity on both sides of the sample box 12 are arc-shaped, and the arc-shaped structure is concave away from the center of the cavity 11. A duct 13 is provided at the top center of the drying oven 1, with its lower end communicating with the cavity 11 and its upper end communicating with the outside. A ventilation opening 14 communicating with the cavity 11 is provided at the bottom of the drying oven 1. A dustproof net 141 is snapped into the ventilation opening 14. The ventilation opening 14 is arranged opposite to the duct 13. Fixed corner brackets 17 are symmetrically arranged inside the cavity 11. The sample box 12 is slidably arranged on the fixed corner brackets 17. The sample box 12 is in the form of a box-shaped drawer. There is a gap between the bottom of the sample box 12 and the inner bottom surface of the cavity 11. In this embodiment, the sample box 12 is square with its upper end open and facing each other. The bottom of the sample box 12 is provided with a partition 15 with several drainage holes 151. Below the partition 15 is a retractable drainage tray 16. The sample box 12 is provided with a device cavity 121 and a sample cavity 122 above the partition 15.

[0042] In this embodiment, the drying assembly includes a fan 21 and a heating tube 22 disposed in the air duct 13, and a flipping assembly 23 disposed in the sample box 12. The heating tube 22 is disposed above the fan 21. The flipping assembly 23 includes a rotating shaft rotatably disposed in the sample box 12, flipping blades 232 fixedly mounted on the rotating shaft, and a drive device connected to the rotating shaft for driving the rotating shaft to rotate and thus driving the flipping blades 232 to rotate. The flipping blades 232 have a plurality of drainage holes 23211, the diameter of which is larger than the diameter of the drainage holes 151. In this embodiment, the sample box 12 is divided into a device cavity 121 and a sample cavity 122. The driving device is disposed in the device cavity 121. The sample cavity 122 is rectangular. Multiple rotating shafts are spaced apart along the width direction of the sample cavity 122. Each rotating shaft extends along the length direction of the sample cavity 122. Each rotating shaft is provided with a flipping blade 232 extending from one end to the other end. The driving device includes a motor 2331 and a transmission assembly disposed between the output shaft of the motor 2331 and the multiple rotating shafts. Specifically, the rotating shaft includes a first rotating shaft 2311, a second rotating shaft 2312, and a third rotating shaft 2313 arranged sequentially from one end to the other along the width direction of the sample chamber 122. One end of the first rotating shaft 2311, the second rotating shaft 2312, and the third rotating shaft 2313 extends into the device chamber 121. The driving device includes a motor 2331, a first synchronous pulley 2332, a second synchronous pulley 2333, a third synchronous pulley 2334, a fourth synchronous pulley 2335, a first synchronous belt 2336, and a second synchronous belt 2337. 37. The output shaft of motor 2331 is coaxially connected to the first rotating shaft 2311. The first synchronous pulley 2332 is sleeved on the first rotating shaft 2311, the second synchronous pulley 2333 and the third synchronous pulley 2334 are sleeved on the second rotating shaft 2312, the fourth synchronous pulley 2335 is sleeved on the third rotating shaft 2313, the first synchronous belt 2336 is sleeved on the first synchronous pulley 2332 and the second synchronous pulley 2333, and the second synchronous belt 2337 is sleeved on the third synchronous pulley 2334 and the fourth synchronous pulley 2335. In this embodiment, the drying assembly also includes a drying tube 18 inserted at the top of the air duct 13. The drying tube 18 has a baffle 181 with several air holes 1811 inside, and a drying package 19 is placed on the baffle 181.

[0043] During the operation of the soil sample drying device in this embodiment, the fan 21 draws outside air into the air duct 13. At this time, the air flows from the outside through the drying pipe 18 and then through the heating pipe 22 above. The drying pack 19 inside the drying pipe 18 first dehumidifies and dries the air. Then, the dehumidified air is heated by the heating pipe 22 and delivered to the cavity 11 through the air duct 13 to provide continuous hot air for the sample. Since the inner walls on both sides of the cavity 11 are arc-shaped, dead corners can be reduced. The design of the bottom ventilation hole can exhaust the hot and humid air. The dustproof net 141 can prevent dust from entering the drying chamber 1 and contaminating the soil sample. At the same time, the motor 2331 drives the first rotating shaft 2311 to rotate. Under the transmission of the synchronous pulley and synchronous belt, it can be ensured that the first rotating shaft 2311, the second rotating shaft 2312 and the third rotating shaft 2313 maintain the same speed and direction of movement, thereby driving the turning blades 232 to rotate at the same frequency, turning the soil sample, turning the bottom soil sample to the top layer, and ensuring the uniformity of soil sample drying. The drainage holes 151 allow liquid water that precipitates from the soil due to heating to drain directly from the partition 15 at the bottom of the sample box 12, effectively preventing water accumulation above the partition 15 and avoiding excessive moisture or soaking of the sample bottom. The drainage tray 16 collects the drained water for easy cleaning. During the soil turning process, the sheet-like and bent turning leaves 232 move the soil, making the soil more fully contacted with the bottom drainage holes 151, which helps to loosen and expose more drainage holes 151, promoting drainage. At the same time, the movement of the turning leaves 232 itself can also drive airflow, assisting in water evaporation. The presence of the drain holes 23211 provides additional channels for water evaporation and drainage.

[0044] The soil sample drying device in this embodiment achieves a comprehensive effect of shortening the drying cycle and improving drying efficiency and quality through the combined action of its various components.

[0045] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A soil sample drying device, characterized in that, It includes a drying chamber with a cavity and a drying assembly disposed on the drying chamber. The drying oven has a sample box in the shape of a drawer inside its cavity. The top of the drying oven has an air duct whose lower end communicates with the cavity and whose upper end communicates with the outside. The bottom of the drying oven has a ventilation opening communicating with the cavity. The bottom of the sample box has a partition with several drainage holes, and a pull-out drainage tray is located below the partition. The drying assembly includes a fan and a heating tube disposed in the air duct, and a flipping assembly disposed in the sample box. The flipping assembly includes a rotating shaft rotatably disposed in the sample box, flipping blades fixedly mounted on the rotating shaft, and a driving device connected to the rotating shaft for driving the rotating shaft to rotate and thus driving the flipping blades to rotate. The flipping blades have a plurality of drainage holes, the diameter of which is larger than the diameter of the drainage holes.

2. The soil sample drying device according to claim 1, characterized in that, The flipping leaf extends outward from the rotating shaft and tilts in the direction of rotation of the rotating shaft, and the end of the flipping leaf away from the rotating shaft can contact the partition of the sample box.

3. The soil sample drying device according to claim 2, characterized in that, The flipping leaf comprises a first part and a second part that are fixedly connected or integrally formed from the rotating axis. The leakage hole is disposed on the first part, and the tilt angle of the first part is smaller than the tilt angle of the second part.

4. The soil sample drying device according to claim 1, characterized in that, The sample box is divided into an equipment cavity and a sample cavity. The driving device is disposed in the equipment cavity. The sample cavity is rectangular. Multiple rotating shafts are spaced apart along the width direction of the sample cavity. Each rotating shaft extends along the length direction of the sample cavity. Each rotating shaft is provided with a flipping blade extending from one end to the other.

5. The soil sample drying apparatus according to claim 4, characterized in that, The drive device includes a motor and a transmission assembly disposed between the output shaft of the motor and the plurality of rotating shafts.

6. The soil sample drying apparatus according to claim 4, characterized in that, The rotating shaft includes a first rotating shaft, a second rotating shaft, and a third rotating shaft arranged sequentially from one end to the other along the width direction of the sample chamber. One end of the first rotating shaft, the second rotating shaft, and the third rotating shaft extends into the device chamber. The driving device includes a motor, a first synchronous pulley, a second synchronous pulley, a third synchronous pulley, a fourth synchronous pulley, a first synchronous belt, and a second synchronous belt. The output shaft of the motor is coaxially connected to the first rotating shaft. The first synchronous pulley is sleeved on the first rotating shaft, the second synchronous pulley and the third synchronous pulley are sleeved on the second rotating shaft, the fourth synchronous pulley is sleeved on the third rotating shaft, the first synchronous belt is sleeved on the first synchronous pulley and the second synchronous pulley, and the second synchronous belt is sleeved on the third synchronous pulley and the fourth synchronous pulley.

7. The soil sample drying apparatus according to claim 1, characterized in that, The heating element is positioned above the fan.

8. The soil sample drying apparatus according to claim 1, characterized in that, The inner walls of the cavity located on both sides of the sample box are arc-shaped structures, and the arc-shaped structures are concave in the direction away from the center of the cavity; And / or, the sample box is square; And / or, there is a gap between the bottom of the sample box and the inner bottom surface of the cavity.

9. The soil sample drying apparatus according to claim 1, characterized in that, The cavity is equipped with a fixed corner bracket, and the sample box can be pulled out and installed on the fixed corner bracket.

10. The soil sample drying apparatus according to claim 1, characterized in that, A dustproof mesh is snapped into the ventilation opening; And / or, a drying tube is inserted into the top of the air duct, and a baffle with several air holes is provided inside the drying tube, and a drying package is placed on the baffle.

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