A soil sample air-drying device

Abstract

The utility model discloses a soil sample air -drying device, including a plurality of air -drying case, exhaust fan and agitating motor, be connected with the cabinet door on the air -drying case, be provided with perspective area and ventilation area on the cabinet door, a plurality of air -drying cases are linear horizontal and are arranged on the mounting panel, and agitating motor is installed on the mounting panel, and be connected with the agitating shaft on agitating motor, and the agitating shaft passes through a plurality of air -drying cases and is connected to the bearing seat, and the bearing seat is connected on the mounting panel, and the inside of air -drying case is provided with the harrow, and the harrow is connected to the agitating shaft, the inside top of air -drying case is provided with the blow -pipe subassembly, and the blow -pipe subassembly includes a plurality of blow -pipe branch and the ventilation pipe connected to the blow -pipe branch, a plurality of blow -pipe branches are equidistance and are arranged, and the both ends of blow -pipe branch are connected to the air -drying case inner side wall respectively, and a plurality of air holes are arranged on every blow -pipe branch, and the exhaust fan is connected with the air outlet pipe, and the air outlet pipe is connected with the ventilation pipe.

Description

Technical Field

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

[0002] In agricultural and environmental science research, soil sample analysis is frequently involved. When analyzing the physicochemical properties of soil samples, air-drying is usually required. This air-drying process should be carried out in a cool, well-ventilated place, avoiding direct sunlight and exposure, to remove moisture from the soil samples.

[0003] Currently, soil samples are mainly dried by spreading them out indoors, drying them on drying trays on drying racks, or hanging them on drying racks after being placed in breathable sample bags. These methods all fall under the category of natural air drying. To accelerate the drying process, fans are often placed next to the drying racks in practice. The fans blow air onto the soil samples in the drying trays or sample bags on the drying racks, and the soil samples in the drying trays are periodically turned over, thereby further increasing the drying speed.

[0004] The drying trays on the drying rack typically contain soil samples from different sources. When the fan blows air directly onto the drying rack, it can easily stir up dust or fine particles from the soil in each tray, causing soil samples from different sources to mix and ultimately leading to cross-contamination. At the same time, the manual turning of the soil samples during continuous fan operation further increases the risk of cross-contamination, adversely affecting the accuracy of subsequent testing data. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a soil sample drying device to solve the problem of cross-contamination during the soil sample drying process mentioned in the background art. The specific technical solution is as follows: A soil sample drying device includes multiple drying chambers, an exhaust fan, and a stirring motor. Each drying chamber has a door with a viewing area and a ventilation area. The multiple drying chambers are arranged horizontally in a linear fashion on a mounting plate. The stirring motor is mounted on the mounting plate and connected to a stirring shaft. The stirring shaft passes through the multiple drying chambers and connects to a bearing seat, which is connected to the mounting plate. A turning rake is installed inside each drying chamber and connected to the stirring shaft. A blower assembly is provided on the top inner side of the drying box. The blower assembly includes multiple blower branches and a ventilation pipe connected to the blower branches. The multiple blower branches are arranged at equal intervals, and both ends of the blower branches are respectively connected to the inner side wall of the drying box. Each blower branch is provided with a vent. An exhaust pipe is connected to the exhaust fan, and the exhaust pipe is connected to the ventilation pipe.

[0006] Preferably, an air purification component is connected between the exhaust fan and the ventilation duct.

[0007] Preferably, the air outlet pipe is equipped with a valve.

[0008] Preferably, the door is located on the front side of the drying box, the front side of the drying box is facing the operator, and a ventilation area is provided on the rear side of the drying box; the stirring shaft enters from the left side of the drying box and exits from the right side of the drying box.

[0009] Preferably, it also includes a drying rack, on which multiple layers of mounting plates are provided, with each layer of mounting plates having its two ends connected to the drying rack.

[0010] Preferably, the air outlet pipe includes a first air outlet pipe, a second air outlet pipe, and a third air outlet pipe. The first air outlet pipe is connected between the exhaust fan and the air purification component. The second air outlet pipe is connected between the air purification component and the ventilation pipe. One end of the third air outlet pipe is connected to the first air outlet pipe, and the other end of the third air outlet pipe is connected to the ventilation pipe.

[0011] Preferably, the blower branch pipe is provided with multiple air holes, which are arranged at equal intervals and face the bottom surface of the drying box.

[0012] The soil sample air-drying device provided by this utility model has the following beneficial effects: 1. The device employs independent drying chambers, each capable of storing soil samples from different sources individually, achieving physical isolation. Simultaneously, the airflow assembly is equipped with a separate branch pipe for each drying chamber, ensuring that the airflow from the exhaust fan completes drying only within a single chamber. This avoids the dust and contamination issues caused by direct fan blowing, reducing the frequency of cross-contamination. A stirring motor and a turning rake agitate the samples within the drying chambers, accelerating the drying process. Furthermore, the independent drying chambers further eliminate cross-contamination pathways, increasing the probability that the original physicochemical properties of each sample remain undisturbed, thus laying a foundation for the accuracy of subsequent testing data.

[0013] 2. The multiple air-blowing branches of the air-blowing assembly are evenly distributed, and each branch has an air hole, allowing the airflow delivered by the exhaust fan to cover the sample in the drying chamber relatively comprehensively, achieving uniform drying and improving the consistency of moisture evaporation rates in different parts of the sample. At the same time, the airflow coverage also improves the overall moisture evaporation efficiency, shortening the drying cycle while providing soil samples with uniformity that meet the standards for subsequent testing.

[0014] 3. The rake rotates at a constant speed with the stirring shaft inside the drying chamber, which can break up the sample layer by layer, avoid local uneven drying caused by soil clumping, and allow the sample to fully contact the airflow, thus shortening the overall drying cycle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of a soil sample air-drying device provided by this utility model; Figure 2 This is a schematic diagram of the structure of a soil sample air-drying device provided by this utility model; Figure 3 This is a schematic diagram of the internal structure of the drying box of a soil sample drying device provided by this utility model; Figure 4 This is a schematic diagram of the arrangement of the air blowing pipe assembly of a soil sample drying device provided by this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the system or component 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.

[0019] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0021] See Figures 1-4 A soil sample drying device includes multiple drying chambers 1, an exhaust fan 2, and a stirring motor 3. Each drying chamber 1 is connected to a door 11, which has a viewing area 12 and a ventilation area 13. The multiple drying chambers 1 are arranged linearly and horizontally on a mounting plate 4. The stirring motor 3 is mounted on the mounting plate 4 and connected to a stirring shaft 5. The stirring shaft 5 passes through the multiple drying chambers 1 and is connected to a bearing seat 6. The bearing seat 6 is connected to the mounting plate 4. A turning rake 7 is provided inside each drying chamber 1 and is connected to the stirring shaft 5.

[0022] The drying box 1 has an air blowing pipe assembly 8 on its inner top. The air blowing pipe assembly 8 includes multiple air blowing branch pipes 81 and ventilation pipes 82 connected to the air blowing branch pipes 81. The multiple air blowing branch pipes 81 are arranged at equal intervals, and the two ends of the air blowing branch pipes 81 are respectively connected to the inner wall of the drying box 1. Each air blowing branch pipe 81 is provided with multiple air holes. The exhaust fan 2 is connected to an air outlet pipe 9, which is connected to the ventilation pipe 82.

[0023] The door 11 is located on the front side of the drying box 1, the front side of the drying box 1 is facing the operator, and a ventilation area is provided on the rear side of the drying box 1; the stirring shaft 5 enters from the left side of the drying box 1 and exits from the right side of the drying box 1.

[0024] In the specific implementation plan, the air delivered by the exhaust fan 2 enters the interior of the drying box 1 through the air outlet pipe 9, the ventilation pipe 82 and the blowing branch pipe 81 in sequence, while the airflow inside the drying box 1 can flow out from the ventilation area 13 on the box door 11.

[0025] The transparent area of ​​the chamber door allows for real-time observation of the sample drying status, enabling progress monitoring without opening the chamber door. This reduces the impact of temperature and humidity fluctuations inside the chamber on the drying process, further ensuring drying quality.

[0026] In specific implementation schemes, for example, the agitator 5 and the rake 7 can be set up as a whole. In order to facilitate installation, the matching drying box 1 is a combination type, that is, the drying box 1 is assembled by four flat plates, and the flat plates can be disassembled to facilitate the installation of the integrated agitator 5 and the rake 7.

[0027] In a specific implementation plan, for example, the agitator shaft 5 can be segmented, with each drying chamber 1 containing a separate shaft segment. A turning rake 7 is mounted on this shaft, and the shaft segment and the turning rake 7 are integrated. A coupling is installed between the drying chambers 1, connecting the corresponding shafts. The coupling is located externally within the drying chambers 1. This method facilitates the installation of the agitator shaft 5 and the turning rake 7 inside the drying chamber 1, eliminating the need for a combined drying chamber 1 design; only one door 11 needs to be openable and closable.

[0028] In the specific implementation plan, this device adopts an independent drying chamber 1 design, with each drying chamber 1 capable of storing soil samples from different sources separately, achieving physical isolation. Simultaneously, the air blowing pipe assembly 8 is equipped with a separate air blowing branch pipe 81 for each drying chamber 1, allowing the airflow delivered by the exhaust fan 2 to enter the interior of each individual drying chamber for drying. Combined with the closed structure of the chamber door, this completely avoids the sample dust mixing problem caused by direct fan blowing in traditional methods. Furthermore, the rake replaces manual turning, eliminating the need for personnel to touch the samples, further cutting off cross-contamination paths and ensuring that the original physicochemical properties of each sample are not disturbed, laying the foundation for the accuracy of subsequent testing data.

[0029] In an optional implementation, the device can also directly connect the ventilation pipe 82 to the drying chamber 1 without setting up the air-blowing branch pipes 81. However, in the preferred implementation, setting up multiple air-blowing branch pipes 81, compared to the single design of the ventilation pipe 82, allows the ventilation pipe 82 to form an effective airflow coverage in the area directly below or near it, which can easily lead to obvious airflow blind spots in the drying chamber. Soil samples near the opening of the ventilation pipe 82 will lose water rapidly due to continuous strong airflow, and may even become locally over-dried and clump together. Samples far from the branch pipes are in a weak airflow environment for a long time, and the moisture evaporates slowly, forming a dry-wet stratification phenomenon. The local drying differences that occur with a single ventilation pipe 82 not only prolong the overall drying cycle, requiring waiting for the blind spot samples to dry before all samples in the entire chamber can be processed, but also cause local component deviations during subsequent sampling due to uneven moisture distribution within the samples, affecting the representativeness of the test data.

[0030] In the preferred embodiment of this device, multiple air-blowing branch pipes 81 are arranged at equal intervals, and the uniform air holes on each branch pipe can evenly distribute the airflow to the area within the drying chamber 1. This method allows the airflow to act on the soil sample surface in a stable and uniform manner, avoiding sample particle splashing caused by localized strong winds. This ensures that all soil samples within the drying chamber 1 are in relatively synchronous contact with the airflow, improving the consistency of moisture evaporation rates across different parts of the sample and effectively preventing differences in physicochemical properties caused by localized over-drying. Simultaneously, the overall moisture evaporation efficiency is improved through full-area airflow coverage, shortening the drying cycle and providing uniformly homogeneous soil samples for subsequent testing.

[0031] In a preferred embodiment, an air purification component is connected between the exhaust fan 2 and the ventilation duct 82. In a specific embodiment, the air purification component can be a commonly used air purifier, etc., which purifies and filters the air discharged from the exhaust duct of the exhaust fan 2 before it is discharged into the ventilation duct 82. The air purification component can be selected according to experimental requirements.

[0032] Laboratories typically maintain a clean and safe working environment, ensuring the air drawn is as clean as possible to improve testing accuracy. However, in other situations, when the laboratory air contains excessive amounts of suspended dust, microorganisms, volatile organic compounds (VOCs), or trace heavy metal particles, if unpurified air is directly drawn into the drying chamber by an exhaust fan, these external impurities can adhere to the surface of the soil sample and even penetrate into the sample. The introduction of these external impurities can lead to inaccurate test results; for example, airborne dust particles may be misidentified as mineral components of the soil, or VOCs may interfere with soil organic matter testing. Air purification components effectively filter dust, microorganisms, and harmful small molecules from the airflow, preventing external contamination from damaging the original physicochemical properties of the sample and ensuring the reliability of subsequent test data.

[0033] The independent drying chamber 1 in this device achieves physical isolation between samples, avoiding cross-contamination between different samples. Compared to a design without air purification, in the preferred embodiment, the air purification component 13 supplements and controls the potential contamination path of airflow input, improving the accuracy of detection.

[0034] In a preferred embodiment, the system further includes a drying rack 14, on which multiple layers of mounting plates 4 are provided, with each layer of mounting plates 4 having its two ends connected to the drying rack 14. For example, the drying rack 14 has two layers of mounting plates 4, and each layer of mounting plates 4 has three drying boxes 1 mounted on it. The three drying boxes 1 are arranged in a row, allowing multiple samples to be dried.

[0035] The corresponding air outlet pipe 9 includes a first air outlet pipe 91, a second air outlet pipe 92, and a third air outlet pipe 93. The first air outlet pipe 91 is connected between the exhaust fan 2 and the air purification component 13. The second air outlet pipe 92 is connected between the air purification component 13 and the ventilation pipe 82. One end of the third air outlet pipe 93 is connected to the first air outlet pipe 91, and the other end of the third air outlet pipe 93 is connected to the ventilation pipe 82.

[0036] For the lower mounting plate 4, three drying boxes 1 are installed on the lower mounting plate 4. Each of the three drying boxes 1 is equipped with a separate ventilation pipe 82. The three ventilation pipes 82 of the lower layer are connected to the second air outlet pipe 92, and each of the three ventilation pipes 82 is equipped with a valve 15. For the upper mounting plate 4, three drying boxes 1 are installed on the upper mounting plate 4. Each of the three drying boxes 1 is equipped with a separate ventilation pipe 82. The three ventilation pipes 82 of the upper layer are connected to the second air outlet pipe 92, and each of the three ventilation pipes 82 is equipped with a valve 15. The valves 15 can control the cut-off and entry of airflow. Since the soil samples contained in each drying box 1 are different, and the moisture content and humidity of the soil samples are different, the setting of valves 15 can increase the flexibility of the device.

[0037] The first air outlet duct 91 is used in embodiments where the air purification component 13 is not required. Air drawn by the exhaust fan 1 enters the drying box 1 through the first air outlet duct 91, the third air outlet duct 93, and the ventilation duct 82. A valve is provided between the first air outlet duct 91 and the third air outlet duct 93 to facilitate switching between operating states.

[0038] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A soil sample air-drying device, characterized in that, The device includes multiple drying boxes (1), a blower (2), and an agitator motor (3). Each drying box (1) is connected to a door (11), which has a viewing area (12) and a ventilation area (13). The multiple drying boxes (1) are arranged linearly and horizontally on a mounting plate (4). The agitator motor (3) is mounted on the mounting plate (4) and is connected to an agitator shaft (5). The agitator shaft (5) passes through the multiple drying boxes (1) and is connected to a bearing seat (6). The bearing seat (6) is connected to the mounting plate (4). A turning rake (7) is provided inside each drying box (1), and the turning rake (7) is connected to the agitator shaft (5). The drying box (1) is provided with a blower assembly (8) on the top inner side. The blower assembly (8) includes multiple blower branches (81) and a ventilation pipe (82) connected to the blower branches (81). The multiple blower branches (81) are arranged at equal distances, and the two ends of the blower branches (81) are respectively connected to the inner wall of the drying box (1). Each blower branch (81) is provided with a vent hole. The exhaust fan (2) is connected to an exhaust pipe (9), and the exhaust pipe (9) is connected to the ventilation pipe (82).

2. The soil sample air-drying device according to claim 1, characterized in that, An air purification component is connected between the exhaust fan (2) and the ventilation pipe (82).

3. A soil sample air-drying device according to claim 1 or 2, characterized in that, A valve is installed on the air outlet pipe (9).

4. A soil sample air-drying device according to claim 1 or 2, characterized in that, The door (11) is located on the front side of the drying box (1), the front side of the drying box (1) is set to face the operator, and a ventilation area is provided on the rear side of the drying box (1); the stirring shaft (5) enters from the left side of the drying box (1) and exits from the right side of the drying box (1).

5. A soil sample air-drying device according to claim 1, characterized in that, It also includes a drying rack (14), on which multiple layers of mounting plates (4) are provided, with each end of the mounting plate (4) being connected to the drying rack (14).

6. A soil sample air-drying device according to claim 2, characterized in that, The air outlet pipe (9) includes a first air outlet pipe (91), a second air outlet pipe (92) and a third air outlet pipe (93). The first air outlet pipe (91) is connected between the exhaust fan (2) and the air purification component. The second air outlet pipe (92) is connected between the air purification component and the ventilation pipe (82). One end of the third air outlet pipe (93) is connected to the first air outlet pipe (91), and the other end of the third air outlet pipe (93) is connected to the ventilation pipe (82).

7. A soil sample air-drying device according to claim 2, characterized in that, The blower branch pipe (81) is provided with multiple air holes, which are arranged at equal intervals and face the bottom surface of the drying box (1).

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