Intelligent grading soil freeze-drying equipment for enzyme activity detection pretreatment in soil

Abstract

The invention discloses intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil, which comprises a vacuum chamber, and an equipment box is mounted at the bottom of the vacuum chamber; the vibrating screening machine is installed in the vacuum chamber and used for conducting classified screening and drying on soil, and the drying frame is installed in the vacuum chamber; the vacuum system is mounted in the equipment box and is used for creating a vacuum environment in the vacuum chamber; the drying system is installed in the equipment box and used for keeping the interior of the vacuum chamber dry; the freezing system is mounted in the equipment box and is used for creating a freezing environment in the vacuum chamber; and a control system. According to the device, the automatic soil grading and freeze-drying functions can be integrated, and grading and freeze-drying of soil samples with different particle sizes can be automatically completed through the arrangement of the vibrating screening machine and the drying frame. The problems of complicated operation, sample pollution and low efficiency are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of detection equipment, in particular to intelligent graded soil freeze-drying equipment for pretreatment of enzyme activity detection in soil. Background Art

[0002] Monitoring enzyme activity in soil is an important means of assessing soil health and fertility. Studies have shown that there are significant differences in enzyme activity in soil samples of different particle sizes, which affects the biological function and nutrient cycle of the soil. Therefore, it is particularly important to grade soil samples for more accurate assessment of enzyme activity. In addition, directly collected soil samples usually have a high water content, which can affect enzyme activity and reaction rate, leading to data deviation or even ineffective detection. To ensure that soil samples remain at an appropriate moisture level during the measurement process, dehydration is necessary, and the commonly used equipment is a freeze dryer.

[0003] However, current soil grading still relies mainly on manual screening, and traditional freeze dryers do not have the ability to grade soil. During use, the placement racks of traditional equipment are usually designed as simple single-layer or double-layer trays, which easily lead to sample mixing and contamination when processing multiple batches of soil samples. In addition, soil samples are placed directly on the tray, which not only requires frequent cleaning, but also inconvenient to operate during the placement and removal process, affecting work efficiency.

[0004] Therefore, there is an urgent need for a structurally improved device that integrates automatic soil grading and freeze drying. Summary of the invention

[0005] The purpose of the present invention is to provide an intelligent graded soil freeze-drying device for enzyme activity detection pretreatment in soil to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides an intelligent graded soil freeze-drying device for pretreatment of enzyme activity detection in soil, comprising:

[0007] A vacuum chamber, wherein an equipment box is installed at the bottom of the vacuum chamber;

[0008] A vibrating screening machine is installed in the vacuum chamber and is used to grade and screen the soil.

[0009] A drying rack, the drying rack being installed in the vacuum chamber and used for storing the soil screened by the vibration screening machine in grades;

[0010] A vacuum system, which is installed in the equipment box and is used to create a vacuum environment in the vacuum chamber;

[0011] A drying system, which is installed in the equipment box and is used to keep the vacuum chamber dry;

[0012] A refrigeration system, which is installed in the equipment box and is used to create a refrigeration environment in the vacuum chamber;

[0013] The control system, the vibration screening machine, the vacuum system, the drying system and the freezing system are all electrically connected to the control system.

[0014] According to the intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil provided by the present invention, the vacuum chamber includes a bottom plate and a sealing cover, the sealing cover is detachably connected to the top surface of the bottom plate, and the bottom plate is fixed to the top surface of the equipment box.

[0015] According to the intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil provided by the present invention, the vibration screening machine includes a frame fixedly connected to the top surface of the bottom plate, a plurality of screening boxes are vertically and evenly spaced on the frame, a discharge port is provided at the bottom of the screening box, a discharge pipe is installed on the discharge port, adjacent screening boxes are connected through the discharge pipe, a screen is detachably connected in the screening box, the screen is corresponding to the discharge pipe, a feed funnel is installed at the top of the frame, and the feed port of the feed funnel is corresponding to the screening box located at the top; a mounting plate is fixedly connected to the bottom of the frame, and a vibration motor is installed on the mounting plate;

[0016] Wherein, a support plate is installed at the bottom of the frame, a screening tray is placed on the support plate, and the screening tray is arranged corresponding to the discharge pipe of the screening box located at the bottom.

[0017] According to the intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil provided by the present invention, a plurality of groups of springs are installed on the side of the frame, and the springs are detachably connected to the outer wall of the screening box.

[0018] According to the intelligent graded soil freeze-drying equipment for pretreatment of enzyme activity detection in soil provided by the present invention, a plurality of drying trays are placed on the drying rack, the plurality of drying trays are arranged at equal intervals in the vertical direction, and intervals are provided between adjacent drying trays.

[0019] According to the intelligent graded soil freeze-drying equipment for pretreatment of enzyme activity detection in soil provided by the present invention, the vacuum system includes a vacuum pump, the vacuum pump is installed in the equipment box, and the output end of the vacuum pump is connected to the vacuum chamber.

[0020] According to the intelligent graded soil freeze-drying equipment for pretreatment of enzyme activity detection in soil provided by the present invention, the drying system includes a water condenser, which is installed in the equipment box and is connected to the vacuum chamber.

[0021] According to the intelligent graded soil freeze-drying equipment for pretreatment of enzyme activity detection in soil provided by the present invention, the freezing system includes a compressor, the compressor is installed in the equipment box, the compressor is connected to the cooling heat exchange medium, the heat exchange medium includes a gas-liquid separation chamber, the gas enters from the gas inlet, is cooled by the heat exchange medium, and after gas-liquid separation, condensate is precipitated.

[0022] The present invention discloses the following technical effects:

[0023] When the present invention is working, the vacuum chamber is opened, soil is added into the vibration screening machine for multi-stage screening, soil particles within the same particle size range are separated respectively, and then the separated soil particles are placed on the drying rack respectively, the control system controls the vacuum system, the freezing system, and the drying system to form a vacuum freeze-drying environment in the vacuum chamber, the drying program is started, and after the soil is dried, the vacuum chamber is opened to take out the soil.

[0024] The present invention can integrate the automatic soil classification and freeze-drying functions, and can automatically complete the classification and freeze-drying of soil samples with different particle sizes through the setting of the vibration screening machine and the drying rack, thereby avoiding the problems of cumbersome operation, sample contamination and low efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the intelligent graded soil freeze-drying equipment used for enzyme activity detection pretreatment in soil according to the present invention;

[0027] Figure 2 It is a schematic structural diagram of the vibrating screening machine of the present invention.

[0028] Among them, 1. Equipment box; 2. Drying rack; 3. Control system; 4. Bottom plate; 5. Sealing cover; 6. Frame; 7. Screening box; 8. Discharge port; 9. Screen; 10. Vibration motor; 11. Screening tray; 12. Spring; 13. Vacuum pump; 14. Water condenser; 15. Compressor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Reference Figure 1-Figure 2 The present invention provides an intelligent graded soil freeze-drying device for pretreatment of enzyme activity detection in soil, comprising:

[0032] A vacuum chamber, wherein an equipment box 1 is installed at the bottom of the vacuum chamber;

[0033] Vibrating screening machine, the vibrating screening machine is installed in the vacuum chamber, the vibrating screening machine is used to grade and screen the soil

[0034] Drying rack 2, the drying rack 2 is installed in the vacuum chamber, and the drying rack 2 is used to grade and store the soil screened by the vibration screening machine;

[0035] A vacuum system, the vacuum system is installed in the equipment box 1 and is used to create a vacuum environment in the vacuum chamber;

[0036] A drying system, which is installed in the equipment box 1 and is used to keep the vacuum chamber dry;

[0037] A refrigeration system, the refrigeration system is installed in the equipment box 1 and is used to create a refrigeration environment in the vacuum chamber;

[0038] The control system 3, the vibration screening machine, the vacuum system, the drying system and the freezing system are all electrically connected to the control system 3.

[0039] When the present invention is working, the vacuum chamber is opened, the soil is added into the vibration screening machine for multi-stage screening, the soil particles within the same particle size range are separated, and then the separated soil particles are placed on the drying rack 2 respectively. The control system 3 controls the vacuum system, the freezing system, and the drying system to form a vacuum freeze-drying environment in the vacuum chamber, and the drying program is started. After the soil is dried, the vacuum chamber is opened to take out the soil.

[0040] The present invention can integrate the automatic soil classification and freeze drying functions, overcoming the shortcomings of the prior art that two devices are needed to perform classification and freeze drying respectively. Traditional soil classification is mostly manual soil screening, which is inefficient and easy to mix samples. Through the setting of the vibration screening machine and the drying rack 2, the classification and freeze drying of soil samples with different particle sizes can be automatically completed. The problems of cumbersome operation, sample contamination and low efficiency are avoided.

[0041] According to a further optimized solution, the vacuum chamber includes a bottom plate 4 and a sealing cover 5 . The sealing cover 5 is detachably connected to the top surface of the bottom plate 4 , and the bottom plate 4 is fixed to the top surface of the equipment box 1 .

[0042] A further optimized solution is that the vibration screening machine includes a frame 6 fixedly connected to the top surface of the bottom plate 4, a plurality of screening boxes 7 are vertically and evenly spaced on the frame 6, a discharge port 8 is provided at the bottom of the screening box 7, a discharge pipe is installed on the discharge port 8, adjacent screening boxes 7 are connected through the discharge pipe, a screen 9 is detachably connected in the screening box 7, the screen 9 is arranged corresponding to the discharge pipe, a feed funnel is installed at the top of the frame 6, and the feed port of the feed funnel is arranged corresponding to the screening box 7 located at the top; a mounting plate is fixedly connected to the bottom of the frame 6, and a vibration motor 10 is installed on the mounting plate;

[0043] Among them, a support plate is installed at the bottom of the frame 6, and a screening tray 11 is placed on the support plate. The screening tray 11 is arranged corresponding to the discharge pipe of the screening box 7 located at the bottom.

[0044] The vibration motor 10 generates vibrations to cause the screen 9 to vibrate, thereby helping the material to move and layer on the screen 9. This process can efficiently classify soil samples of different particle sizes. The vibration frequency and amplitude of the vibration motor 10 can be adjusted to adapt to the characteristics of different materials, thereby improving the efficiency of screening.

[0045] The spring 12 is used to amplify the vibration and improve the screening efficiency, and the screening tray 11 is used to collect the finest soil particles.

[0046] According to a further optimization scheme, a plurality of groups of springs 12 are installed on the side of the frame 6 , and the springs 12 are detachably connected to the outer wall of the screening box 7 .

[0047] According to a further optimized solution, a plurality of drying trays are placed on the drying rack 2, and the plurality of drying trays are arranged at equal intervals in the vertical direction, and intervals are provided between adjacent drying trays.

[0048] In a further optimized solution, the vacuum system includes a vacuum pump 13, which is installed in the equipment box 1, and the output end of the vacuum pump 13 is connected to the vacuum chamber. The vacuum pump 13 ensures that the inside of the equipment is kept in vacuum by exhausting the air and water vapor inside the vacuum chamber, thereby promoting the rapid evaporation of water from the sample.

[0049] In a further optimized solution, the drying system includes a water condenser 14, which is installed in the equipment box 1 and communicated with the vacuum chamber. The water in the vacuum chamber is removed by the water condenser 14 to keep the interior dry, thereby improving the drying efficiency and sample quality.

[0050] According to a further optimization scheme, the refrigeration system includes a compressor 15, which is installed in the equipment box 1. The compressor 15 is connected to the cooling heat exchange medium. The heat exchange medium includes a gas-liquid separation chamber. The gas enters from the gas inlet, is cooled by the heat exchange medium, and condensed liquid is precipitated after gas-liquid separation.

[0051] The compressor is connected to the media heat exchange circulation system on one hand, and to the coil inside the water trap on the other hand to cool the water trap coil. The water trap is used to condense the water vapor generated by the sublimation of water in the sample to prevent it from entering the vacuum pump. On the one hand, it reduces the workload of the vacuum pump, and on the other hand, it can ensure the vacuum degree of the drying chamber.

[0052] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0053] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. Intelligent graded soil freeze-drying equipment for pretreatment of enzyme activity detection in soil, characterized in that: include: A vacuum chamber, wherein an equipment box (1) is installed at the bottom of the vacuum chamber; A vibrating screening machine is installed in the vacuum chamber and is used to grade and screen the soil. A drying rack (2), the drying rack (2) being installed in the vacuum chamber, and the drying rack (2) being used for storing the soil screened by the vibration screening machine in a graded manner; A vacuum system, the vacuum system being installed in the equipment box (1) and being used to create a vacuum environment in the vacuum chamber; A drying system, the drying system being installed in the equipment box (1) and being used for keeping the vacuum chamber dry; A refrigeration system, which is installed in the equipment box (1) and is used to create a refrigeration environment in the vacuum chamber; The control system (3) is electrically connected to the vibration screening machine, the vacuum system, the drying system and the freezing system.

2. The intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil according to claim 1 is characterized in that: The vacuum chamber comprises a bottom plate (4) and a sealing cover (5), wherein the sealing cover (5) is detachably connected to the top surface of the bottom plate (4), and the bottom plate (4) is fixed to the top surface of the equipment box (1).

3. The intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil according to claim 2 is characterized in that: The vibrating screening machine comprises a frame (6) fixedly connected to the top surface of the bottom plate (4), a plurality of screening boxes (7) are vertically and evenly spaced on the frame (6), a discharge port (8) is provided at the bottom of the screening box (7), a discharge pipe is installed on the discharge port (8), adjacent screening boxes (7) are connected through the discharge pipe, a screen (9) is detachably connected inside the screening box (7), the screen (9) is arranged corresponding to the discharge pipe, a feed hopper is installed at the top of the frame (6), and the feed port of the feed hopper is arranged corresponding to the screening box (7) located at the top; a mounting plate is fixedly connected to the bottom of the frame (6), and a vibration motor (10) is installed on the mounting plate; A support plate is installed at the bottom of the frame (6), a screening tray (11) is placed on the support plate, and the screening tray (11) is arranged corresponding to the discharge pipe of the screening box (7) located at the bottom.

4. The intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil according to claim 3 is characterized in that: A plurality of groups of springs (12) are installed on the side of the frame (6), and the springs (12) are detachably connected to the outer wall of the screening box (7).

5. The intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil according to claim 1, characterized in that: A plurality of drying trays are placed on the drying rack (2), and the plurality of drying trays are arranged at equal intervals in the vertical direction, with intervals being provided between adjacent drying trays.

6. The intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil according to claim 1, characterized in that: The vacuum system comprises a vacuum pump (13), wherein the vacuum pump (13) is installed in the equipment box (1), and an output end of the vacuum pump (13) is connected to the vacuum chamber.

7. The intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil according to claim 1, characterized in that: The drying system comprises a water condenser (14), wherein the water condenser (14) is installed in the equipment box (1), and the water condenser (14) is in communication with the vacuum chamber.

8. The intelligent graded soil freeze-drying equipment for enzyme activity detection pretreatment in soil according to claim 1, characterized in that: The refrigeration system comprises a compressor (15), wherein the compressor (15) is installed in the equipment box (1), and the compressor (15) is connected to the cooling heat exchange medium.

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