Soil dryer

Abstract

The utility model discloses a soil dryer, which relates to the technical field of soil drying and comprises a hot air box. The hot air box is internally provided with hot air flow from bottom to top; a plurality of screen frames are rotationally mounted in the hot air box, and cloth bags for containing soil are arranged in the screen frames; a driving rod which linearly moves in a reciprocating manner is arranged in the hot air box, the driving rod is connected with a plurality of vertical annular bodies which are in one-to-one correspondence with the screen frames, and guide columns extending into the annular bodies are arranged on one sides of the screen frames; the driving rod reciprocates to drive the annular body to move, so that the guide column and the screen frame deflect back and forth within a certain angle, the two sides of soil can face hot air flow, the soil is turned over through deflection, the internal gap position of the soil is changed, the hot air flow permeates into the soil, and the drying efficiency is guaranteed; the overall deflection is weaker than the stirring dust excitation effect, the cloth bag is matched to avoid the loss of powdery soil, and the accuracy of the moisture content detection result is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of soil drying, in particular to a soil drying machine. Background Art

[0002] By using a soil dryer to dry the soil and weighing the soil before and after drying, the soil moisture content can be obtained, which is conducive to further testing of the soil composition.

[0003] Traditional soil hot air drying equipment uses hot air to penetrate into the soil to take away the moisture inside the soil. Since the soil is stationary in the drying equipment, the hot air penetrates from one side of the soil to the other side, and the resistance gradually increases, which limits the improvement of the drying efficiency. In order to improve the soil drying efficiency, in the prior art, such as the utility model patent with publication number CN213599724U, a soil drying equipment for soil testing, and the utility model patent with publication number CN215217039U, a soil sample drying device, both use a stirring structure to stir the soil being dried, which is beneficial to the penetration of hot air and improves the drying efficiency; however, during the stirring process, the soil that is dried first is very likely to generate dust under the stirring action, which is carried away by the airflow or thrown outside the soil container, resulting in errors in the soil moisture content detection results. Utility Model Content

[0004] The purpose of the utility model is to provide a soil drying machine in order to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The soil dryer comprises a hot air box; the hot air box has a hot air flow from bottom to top; a plurality of net frames are rotatably installed in the hot air box, and cloth bags for containing soil are arranged in the net frames; a driving rod for reciprocating linear movement is arranged in the hot air box, and the driving rod is connected to a plurality of vertical annular bodies corresponding to the net frames one by one, and a guide column extending into the annular body is arranged on one side of the net frame.

[0007] Furthermore, an air inlet pipe is connected to the lower side of the hot air box, a heater is installed on the air inlet pipe, and an air inlet fan is installed at the end of the air inlet pipe.

[0008] Furthermore, a disc body is provided at the inner bottom of the hot air box, the middle part of the disc body is located on the upper side of the connection between the air inlet pipe and the hot air box, and there is a gap between the disc body and the bottom wall of the hot air box.

[0009] Furthermore, a punching plate is provided at the lower part of the hot air box.

[0010] Furthermore, an opening corresponding to the screen frame is provided on the upper wall of the hot air box, and a sealing plate covering the opening is provided on the upper side of the hot air box.

[0011] Furthermore, a slot body is provided on the upper side of the hot air box, and the sealing plate is inserted into the slot body.

[0012] Furthermore, a guide tube for guiding the driving rod is provided in the hot air box, and the driving rod passes through the guide tube.

[0013] Furthermore, an automatic telescopic rod is installed on the side wall of the hot air box, and the telescopic end of the automatic telescopic rod is connected to the driving rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model drives the annular body to move by the reciprocating movement of the driving rod, so that the guide column and the net frame are deflected reciprocatingly within a certain angle, so that the two sides of the soil are respectively oriented towards the hot air flow. The deflection causes the soil to turn in the bag and the position of the internal gap thereof changes, which is beneficial for the hot air flow to penetrate the soil and ensure the drying efficiency. The overall deflection has a weaker dust-exciting effect than stirring, and cooperates with the bag to prevent the powdery soil from being lost and scattered, which is beneficial to the accuracy of the moisture content detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the internal structure of the screen frame of the utility model in a vertical state.

[0017] Figure 2 It is a schematic diagram of the internal structure of the screen frame in the deflected state of the utility model.

[0018] Figure 3 It is a schematic diagram of the external structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the screen frame structure of the utility model.

[0020] Figure 5 It is a schematic diagram of the driving structure of the utility model.

[0021] Figure 6 It is a schematic diagram of a cloth bag of the present utility model.

[0022] In the figure: 1. hot air box; 2. screen frame; 3. cloth bag; 4. driving rod; 5. guide column; 6. ring body; 7. air inlet pipe; 8. heater; 9. air inlet fan; 10. disc body; 11. punching plate; 12. sealing plate; 13. slot body; 14. guide tube; 15. automatic telescopic rod; 81. electric heating wire. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the term "provided with" that may appear should be understood in a broad sense. For example, the object "provided with" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or an inseparable connection. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] The present invention is further described in detail below in conjunction with the embodiments.

[0027] The specific embodiment of the soil drying machine provided by the utility model is as follows:

[0028] See also Figure 1-6 The soil drying machine comprises a hot air box 1, and a leg is provided at the lower side of the corner of the hot air box 1; there is a hot air flow from bottom to top in the hot air box 1; an air inlet pipe 7 is connected to the lower side of the hot air box 1, a heater 8 is installed on the air inlet pipe 7, and an air inlet fan 9 is installed at the end of the air inlet pipe 7. The air inlet fan 9 introduces external air into the air inlet pipe 7, passes through the heater 8 on the air inlet pipe 7, and turns the air flow into hot air flow, and the hot air flow is transported from the lower part of the hot air box 1 to the upper part of the hot air box 1.

[0029] In this embodiment, a filter is provided at the air inlet end of the air inlet fan 9 to prevent foreign matter from being introduced into the blades of the air inlet fan 9. The heater 8 comprises a shell connected in series to the air inlet pipe 7, and an electric heating wire 81 is installed in the shell. The electric heating wire 81 is energized to generate heat, thereby increasing the temperature of the airflow passing through the shell.

[0030] A horizontal disc 10 is provided at the bottom of the inner side of the hot air box 1, and the middle of the disc 10 is located at the upper side of the connection between the air inlet pipe 7 and the hot air box 1. There is a gap between the disc 10 and the bottom wall of the hot air box 1. Specifically, four pillars are connected between the disc 10 and the bottom wall of the hot air box 1. The disc 10 makes the airflow input into the hot air box 1 diverge and then transport it upward to avoid excessive concentration of the hot air flow.

[0031] A horizontal perforated plate 11 is provided at the lower inner part of the hot air box 1. The perforated plate 11 is located on the upper side of the disc body 10 and there is a gap between the perforated plate 11 and the disc body 10. The perforated plate 11 divides the hot air box 1 into two parts, an upper part and an lower part. Small holes are evenly distributed on the perforated plate 11, which plays the role of distributing air and further evenly distributes the upward hot air flow.

[0032] A plurality of mesh frames 2 are rotatably installed in the hot air box 1. The mesh frames 2 are arranged in parallel. The upper side of the mesh frames 2 has a frame opening. The mesh frames 2 are evenly distributed with mesh holes for hot air flow to pass through. A rotating shaft is connected to the outer side of the upper end of the mesh frame 2, and the rotating shaft is rotatably connected to the hot air box 1. A cloth bag 3 for containing soil is arranged in each mesh frame 2; the soil to be dried is placed in the cloth bag 3, the bag opening is tied and tightened, and then the cloth bag 3 is placed in the mesh frame 2 through the frame opening. The cloth bag 3 can prevent the powdered soil from being carried away by the hot air flow after the soil is dried, and does not affect the volatilization of moisture in the soil.

[0033] An opening corresponding to the mesh frame 2 is provided on the upper wall of the hot air box 1, and a sealing plate 12 covering the opening is provided on the upper side of the hot air box 1; specifically, a slot body 13 is provided on the upper side of the hot air box 1, and the sealing plate 12 is inserted into the slot body 13. In this embodiment, a plurality of openings are provided, and the openings correspond to the mesh frame 2 one by one, so as to facilitate the placement of the cloth bag 3 in the mesh frame 2. The slot body 13 is U-shaped and does not completely surround the opening. A through hole is provided at one end of the sealing plate 12, so as to facilitate hand-held pulling. There is a gap between the sealing plate 12 and the inner side of the slot body 13, forming a gap fit, which makes pulling easy, and allows the hot air flow carrying water vapor to pass through the gap and be discharged.

[0034] A driving rod 4 that moves back and forth in a straight line is provided in the hot air box 1. A guide tube 14 that guides the driving rod 4 is provided on the inner side of the side wall of the hot air box 1. The driving rod 4 slides through the guide tube 14. The guide tube 14 allows the driving rod 4 to move back and forth in a straight line. An automatic telescopic rod 15 is installed on one side wall of the hot air box 1. The telescopic end of the automatic telescopic rod 15 is connected to the driving rod 4. The telescopic end of the automatic telescopic rod 15 can drive the driving rod 4 to move back and forth in a straight line. The automatic telescopic rod 15 can be an electric telescopic rod or a hydraulic telescopic rod.

[0035] The driving rod 4 is connected with a plurality of vertical annular bodies 6 corresponding to the net frame 2 one by one, and a guide column 5 extending into the annular body 6 is provided on one side of the net frame 2. The outer diameter of the guide column 5 is slightly smaller than the inner width of the annular body 6; the guide column 5 is located at the lower side of the rotating shaft of the net frame 2, and the upper end of the annular body 6 is lower than the rotating shaft of the net frame 2. When the driving rod 4 reciprocates, the annular body 6 moves back and forth in a straight line, and the annular body 6 deflects the net frame 2 under the support of its rotating shaft through the guide column 5, and the relative position of the guide column 5 and the annular body 6 changes; the net frame 2 can deflect to both sides, so that the net frame 2 and the two sides of the cloth bag 3 are respectively in direct contact with the hot air flow downward, so that the soil on both sides of the cloth bag 3 is in direct contact with the hot air flow, which is convenient for the hot air flow to penetrate the soil from both sides of the cloth bag 3, fully take away the moisture, and ensure the drying efficiency.

[0036] When working, two working states can be adopted; one is that the automatic telescopic rod 15 is continuously extended and retracted, so that the driving rod 4 continues to reciprocate, and the screen frame 2 continuously reciprocates within a certain angle; the other is to deflect the screen frame 2 to one side such as Figure 2 state, stop for a while, then deflect the screen frame 2 to the other side and stop for a while, and the soil is dried in this cycle.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A soil dryer, comprising a hot air box (1); characterized in that: The hot air box (1) has a hot air flow from bottom to top; a plurality of net frames (2) are rotatably mounted in the hot air box (1), and cloth bags (3) for containing soil are provided in the net frames (2); a driving rod (4) for reciprocating linear movement is provided in the hot air box (1), and the driving rod (4) is connected to a plurality of vertical annular bodies (6) corresponding one to one with the net frames (2), and a guide column (5) extending into the annular body (6) is provided on one side of the net frames (2).

2. The soil dryer according to claim 1, characterized in that: The lower side of the hot air box (1) is connected to an air inlet pipe (7), a heater (8) is installed on the air inlet pipe (7), and an air inlet fan (9) is installed at the end of the air inlet pipe (7).

3. The soil drying machine according to claim 2, characterized in that: A disc body (10) is provided at the bottom inner side of the hot air box (1), the middle of the disc body (10) is located above the connection between the air inlet pipe (7) and the hot air box (1), and there is a gap between the disc body (10) and the bottom wall of the hot air box (1).

4. The soil drying machine according to claim 2, characterized in that: A punching plate (11) is provided at the lower part of the hot air box (1).

5. The soil drying machine according to claim 1, characterized in that: The upper wall of the hot air box (1) is provided with an opening corresponding to the screen frame (2), and the upper side of the hot air box (1) is provided with a sealing plate (12) covering the opening.

6. The soil drying machine according to claim 5, characterized in that: A slot body (13) is provided on the upper side of the hot air box (1), and the sealing plate (12) is inserted into the slot body (13).

7. The soil drying machine according to claim 1, characterized in that: A guide tube (14) for guiding the driving rod (4) is provided in the hot air box (1), and the driving rod (4) passes through the guide tube (14).

8. The soil drying machine according to claim 1, characterized in that: An automatic telescopic rod (15) is installed on the side wall of the hot air box (1), and the telescopic end of the automatic telescopic rod (15) is connected to the driving rod (4).

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