A rapid drying screening device for soil testing
Patent Information
- Application Number
- CN202521717832.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-13
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-08-13
AI Technical Summary
[0004]现有技术中,一般都是通过先烘干再筛选的过程,然而这一过程,一方面增加了处理样本的时间,另一方面,增加了烘干过程的能耗,因为有些需要筛选出去的杂质也在烘干过程中被烘干了
[0014] Beneficial effects: The soil sample to be screened and dried is placed inside the shaker. The shaker is shaken by the oscillation mechanism. During the oscillation, some fine sand particles and other impurities can be screened out. At the same time, the hot air blown out by the drying component is guided by the guide plate to form a laminar flow and is dried from below the screen, thus drying the soil sample. Screening and drying can be carried out simultaneously.
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Figure CN224731609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil testing technology, and in particular to a rapid drying and screening device for soil testing. Background Technology
[0002] Soil testing is an important means of understanding soil health and fertility levels. By analyzing indicators such as soil pH, nutrient content, and heavy metal pollution, it can provide crucial data support for planting, environmental protection, and land planning. Various testing methods are available; in laboratories, sophisticated instruments are used to measure trace elements, while rapid testing equipment can provide quick results on-site. Now, intelligent technologies can automatically analyze soil conditions, making the data more accurate and easier to use.
[0003] Before testing, soil samples must be processed; screening and drying are crucial. Screening involves using a sieve of specific size to remove fine sand and silt particles, while retaining larger soil clumps or aggregates. If these fine particles are mixed into the sample, they may affect the determination of nutrient adsorption or release rates due to differences in specific surface area, interfering with key indicators such as microbial activity analysis. Drying further removes moisture from the soil, preventing water from diluting soluble substances and affecting the accuracy of test results such as pH and conductivity. It also ensures stable sample weight, providing a reliable basis for subsequent analysis.
[0004] In existing technologies, the process generally involves drying the sample before screening. However, this process increases both the time required to process the sample and the energy consumption of the drying process, as some impurities that need to be screened out are also dried during the drying process. Utility Model Content
[0005] Purpose of the utility model: The purpose of this utility model is to provide a rapid drying and screening device for soil testing, so as to solve the above-mentioned shortcomings in the prior art.
[0006] Technical solution: A rapid drying and screening device for soil testing includes multiple support columns, with a drying chamber fixedly installed between the support columns. A hopper is connected to the bottom of the drying chamber. A shaking box is installed inside the drying chamber, with a screen at the bottom of the shaking box. The shaking box is movably connected to the top of the drying chamber via a suspension rod. A oscillation mechanism for oscillating the shaking box is provided on one side of the drying chamber, and a drying assembly is provided on one side of the drying chamber. Multiple guide vanes are fixedly installed at the bottom of the shaking box.
[0007] As a further description of the above technical solution: multiple guide vanes are provided, each guide vane includes a vertical portion and an inclined portion, the inclined portion is located below the vertical portion, and the length of the multiple guide vanes increases sequentially from the direction of the drying component to the direction away from the drying component.
[0008] As a further description of the above technical solution: the top of the drying chamber is provided with a top cover and an inspection cover.
[0009] As a further description of the above technical solution: the drying component includes an air inlet duct, a fan and a heating wire assembly are fixedly installed inside the air inlet duct, and a heating module assembly is fixedly installed above the air inlet duct, and the heating wire assembly is electrically connected to the heating module assembly.
[0010] As a further description of the above technical solution: an air outlet duct is provided on the side of the drying chamber away from the drying components.
[0011] As a further description of the above technical solution: the ends of the air inlet duct and the air outlet duct are respectively provided with a second filter and a first filter.
[0012] As a further description of the above technical solution: the oscillation mechanism includes a frame set on one side of the drying chamber, two support members are fixedly installed on the frame, bearing seats are fixedly installed on the two support members, a rotating shaft is rotatably installed between the two bearing seats, a rotating disk is fixedly installed on the rotating shaft, and a connecting member is rotatably installed at an eccentric position on the rotating disk, the other end of the connecting member is movably connected to the side wall of the oscillation chamber.
[0013] As a further description of the above technical solution: a motor is fixedly installed at the bottom of the frame, and the oscillation mechanism also includes a transmission belt assembly. One end of the output shaft and the rotating shaft of the motor are respectively connected to the two transmission wheels of the transmission belt assembly.
[0014] Beneficial effects: The soil sample to be screened and dried is placed inside the shaker. The shaker is shaken by the oscillation mechanism. During the oscillation, some fine sand particles and other impurities can be screened out. At the same time, the hot air blown out by the drying component is guided by the guide plate to form a laminar flow and is dried from below the screen, thus drying the soil sample. Screening and drying can be carried out simultaneously. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a rapid drying and screening device for soil testing proposed in this utility model.
[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0017] Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective;
[0018] Figure 4 This is a three-dimensional cross-sectional structural diagram of the present invention;
[0019] Figure 5This is a cross-sectional structural diagram of the present invention;
[0020] Figure 6 This is a cross-sectional three-dimensional structural diagram of the drying component of this utility model.
[0021] Legend:
[0022] 1. Support column; 2. Drying chamber; 3. Feed hopper; 4. Top cover; 5. Inspection cover; 6. Air inlet duct; 7. Air outlet duct; 8. Frame; 9. Motor; 10. Transmission belt assembly; 11. Bearing seat; 12. Rotating shaft; 13. Rotating disc; 14. Support component; 15. Connecting component; 16. Shaking box; 17. Hanging rod; 18. Screen; 19. Guide vane; 20. Fan; 21. Heating wire assembly; 22. Heating module assembly; 23. First filter screen; 24. Second filter screen. Detailed Implementation
[0023] To make the technical solution of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] Reference Figure 1-6 A rapid drying and screening device for soil testing includes multiple support columns 1, with a drying chamber 2 fixedly installed between the support columns 1. A hopper 3 is connected to the bottom of each drying chamber 2. A shaking box 16 is installed inside the drying chamber 2, and a screen 18 is installed at the bottom of the shaking box 16. The shaking box 16 is movably connected to the top of the drying chamber 2 via a hanging rod 17. A oscillation mechanism for oscillating the shaking box 16 is installed on one side of the drying chamber 2, and a drying component is installed on one side of the drying chamber 2. Multiple guide vanes 19 are fixedly installed at the bottom of the shaking box 16. Soil samples to be screened and dried are placed inside the shaking box 16, and the shaking box 16 is oscillated by the oscillation mechanism. During the oscillation process, fine sand particles and other impurities are screened out. Simultaneously, hot air blown from the drying component is guided by the guide vanes 19 to form a laminar flow, drying the soil sample from below the screen 18, thus achieving simultaneous screening and drying of the soil sample.
[0025] As a preferred technical solution of this embodiment, multiple guide vanes 19 are provided. Each guide vane 19 includes a vertical portion and an inclined portion. The inclined portion is located below the vertical portion. The length of the multiple guide vanes 19 increases sequentially from the direction of the drying assembly to the direction away from the drying assembly. The guide vanes 19 can guide the blown hot air, thereby achieving the desired effect. Furthermore, by setting different lengths, it is ensured that the drying air can be evenly delivered to the bottom of the entire screen 18, avoiding the obstruction of the drying air by the guide vanes 19.
[0026] As a preferred technical solution in this embodiment, the top of the drying chamber 2 is provided with an upper cover 4 and an inspection cover 5; the upper cover 4 is used to place the soil that needs to be dried and screened, and the inspection cover 5 is used to observe the internal condition of the drying chamber 2.
[0027] As a preferred technical solution in this embodiment, the drying component includes an air inlet duct 6, inside which a fan 20 and a heating wire assembly 21 are fixedly installed. Above the air inlet duct 6, a heating module assembly 22 is fixedly installed, and the heating wire assembly 21 is electrically connected to the heating module assembly 22. The air blown out by the fan 20 is heated by the heating wire assembly 21, and the heated air can dry the soil sample inside. The heating wire assembly 21 and the heating module assembly 22 are both existing technologies. Their principle is that the heating module assembly 22 heats the heating wire assembly 21 by energizing it, so they will not be described in detail.
[0028] As a preferred technical solution in this embodiment, the drying chamber 2 is provided with an air outlet 7 on the side away from the drying components; the air outlet 7 is used for exhaust, so that the hot air inside the drying chamber 2 can flow, thereby removing the moisture from the soil.
[0029] As a preferred technical solution in this embodiment, the ends of the air inlet duct 6 and the air outlet duct 7 are respectively provided with a second filter screen 24 and a first filter screen 23; the two filters are provided to prevent external dust from entering the interior of the drying chamber 2 during the drying process.
[0030] As a preferred embodiment, the oscillation mechanism includes a frame 8 disposed on one side of the drying chamber 2. Two support members 14 are fixedly installed on the frame 8, and bearing seats 11 are fixedly installed on the two support members 14. A rotating shaft 12 is rotatably installed between the two bearing seats 11. A rotating disk 13 is fixedly installed on the rotating shaft 12. A connecting member 15 is rotatably installed at an eccentric position on the rotating disk 13. The other end of the connecting member 15 is movably connected to the side wall of the shaking box 16. By rotating the rotating disk 13, the connecting member 15 can drive the shaking box 16 to reciprocate, thereby realizing the oscillation of the shaking box 16 and the screening of soil samples.
[0031] As a preferred technical solution of this embodiment, a motor 9 is fixedly installed at the bottom of the frame 8, and the oscillation mechanism also includes a transmission belt assembly 10. One end of the output shaft of the motor 9 and one end of the rotating shaft 12 are respectively connected to the two transmission wheels of the transmission belt assembly 10. The motor 9 can drive the transmission belt assembly 10 to rotate, further realizing the rotation of the rotating shaft 12, thereby realizing the rotation of the rotating disk 13.
[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A rapid drying and screening device for soil testing, comprising multiple support columns (1), a drying chamber (2) fixedly installed between the multiple support columns (1), a feeding hopper (3) connected to the bottom end of the drying chamber (2), a shaking box (16) disposed inside the drying chamber (2), and a screen (18) disposed at the bottom end of the shaking box (16), characterized in that, The shaking box (16) is movably connected to the top of the drying chamber (2) via a hanging rod (17). A shaking mechanism for shaking the shaking box (16) is provided on one side of the drying chamber (2). A drying assembly is provided on one side of the drying chamber (2). Multiple guide vanes (19) are fixedly installed at the bottom of the shaking box (16).
2. A rapid drying screening device for soil testing as claimed in claim 1 wherein, Multiple guide vanes (19) are provided. Each guide vane (19) includes a vertical portion and an inclined portion. The inclined portion is located below the vertical portion. The length of the multiple guide vanes (19) increases sequentially from the direction of the drying assembly to the direction away from the drying assembly.
3. The rapid drying screening device for soil testing according to claim 1, wherein, The top of the drying chamber (2) is provided with a top cover (4) and an inspection cover (5).
4. The rapid drying screening device for soil testing of claim 1, wherein, The drying assembly includes an air inlet duct (6), inside which a fan (20) and a heating wire assembly (21) are fixedly installed. Above the air inlet duct (6), a heating module assembly (22) is fixedly installed, and the heating wire assembly (21) is electrically connected to the heating module assembly (22).
5. A rapid drying screening device for soil testing as claimed in claim 4, wherein, The drying chamber (2) has an air outlet (7) on the side away from the drying components.
6. A rapid drying screening device for soil testing as claimed in claim 5 wherein, The ends of the air inlet duct (6) and the air outlet duct (7) are respectively provided with a second filter screen (24) and a first filter screen (23).
7. The rapid drying screening device for soil testing of claim 1, wherein, The oscillation mechanism includes a frame (8) set on one side of the drying chamber (2), two support members (14) are fixedly installed on the frame (8), bearing seats (11) are fixedly installed on the two support members (14), a rotating shaft (12) is rotatably installed between the two bearing seats (11), a rotating disk (13) is fixedly installed on the rotating shaft (12), and a connecting member (15) is rotatably installed at the eccentric part of the rotating disk (13). The other end of the connecting member (15) is movably connected to the side wall of the shaking box (16).
8. A rapid drying screening device for soil testing according to claim 7, wherein, A motor (9) is fixedly installed at the bottom of the frame (8). The oscillation mechanism also includes a transmission belt assembly (10). One end of the output shaft and the rotating shaft (12) of the motor (9) are respectively connected to the two transmission wheels of the transmission belt assembly (10).