A soil rapid drying screening device for soil detection

Abstract

This invention discloses a rapid soil drying and screening device for soil testing, relating to the field of soil testing technology. It includes a drying cylinder, a feed hopper mounted on the drying cylinder, a mounting frame, and a discharge pipe located at the bottom of the drying cylinder. A rotatable stirring shaft is installed inside the drying cylinder, and a stirring mechanism is mounted on the outer wall of the stirring shaft. A screening mechanism is located at the bottom of the stirring shaft, and a sealing mechanism is located on the outer wall of the stirring shaft. This invention, through the use of the stirring mechanism, facilitates the stirring of the soil inside the drying cylinder, thereby ensuring uniform heating of the soil and further improving the efficiency of soil drying. The use of a reciprocating assembly facilitates the up-and-down movement of the stirring blades, thereby changing the position of the stirring blades within the drying cylinder, facilitating stirring of soil at different locations, improving the practicality of the drying and screening device and increasing the efficiency of soil drying.

Description

Technical Field

[0001] This invention relates to the field of soil testing technology, and in particular to a rapid soil drying and screening device for soil testing. Background Technology

[0002] Soil testing refers to determining environmental quality (or pollution level) and its changing trends by measuring representative values ​​of factors affecting soil environmental quality. In order to improve the accuracy of soil testing, soil drying and screening are required, which necessitates the use of drying and screening devices. However, in the use of existing drying and screening devices, the soil piles up in the drying cylinder, causing the soil in the middle to not be heated, resulting in uneven heating of the soil and reducing the efficiency of soil drying. Summary of the Invention

[0003] In order to solve the problems in the background art, the present invention proposes a rapid soil drying and screening device for soil testing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A rapid soil drying and screening device for soil testing includes a drying cylinder, a feed hopper mounted on the drying cylinder, a mounting frame, and a discharge pipe mounted at the bottom of the drying cylinder. The drying cylinder is equipped with a rotatable stirring shaft, and the bottom of the stirring shaft passes through the discharge pipe. A stirring mechanism is provided on the outer wall of the stirring shaft inside the drying cylinder.

[0006] The bottom of the stirring shaft is equipped with a sieving mechanism for soil sieving;

[0007] The outer wall of the stirring shaft is provided with a sealing mechanism for sealing the discharge pipe.

[0008] Preferably, the stirring mechanism includes a limiting rod fixed to the outer wall of the stirring shaft, an annular plate symmetrically slidably disposed on the outer wall of the stirring shaft, and a connecting frame disposed between the annular plates. A plurality of stirring blades are evenly disposed on the inner wall of the connecting frame, and a reciprocating assembly for the up-and-down movement of the stirring blades is disposed on the inner wall of the drying cylinder.

[0009] Preferably, the reciprocating assembly includes a circular limiting plate 1 disposed on an annular plate at the top, and the circular limiting plate 1 is rotatably disposed with the stirring shaft. A circular limiting plate 2 is rotatably disposed on the top of the stirring shaft, and the circular limiting plate 2 is rotatably disposed with the drying cylinder. A compression spring 1 is disposed between the circular limiting plate 2 and the circular limiting plate 1.

[0010] Preferably, the reciprocating assembly further includes a plurality of top blocks evenly disposed on the inner wall of the drying cylinder and a rotating block disposed on the top of the connecting frame. Both ends of the top blocks are provided with arc-shaped surfaces II, and both ends of the rotating block are provided with arc-shaped surfaces III that cooperate with the arc-shaped surfaces II.

[0011] Preferably, the screening mechanism includes a circular screen slidably disposed at the bottom of the stirring shaft, a base plate fixedly connected to the bottom of the stirring shaft, and a compression spring sleeved between the base plate and the circular screen. The outer wall of the bottom of the stirring shaft is provided with an external thread that mates with the circular screen. The top of the circular screen is connected to the discharge pipe through a connecting assembly.

[0012] Preferably, the connecting assembly includes multiple supports evenly arranged on the top of the circular screen, a slider arranged on the supports, and an annular groove opened on the outer wall of the discharge pipe. Multiple rectangular grooves are opened on the bottom surface of the annular groove in conjunction with the slider. An arc-shaped surface is provided on one side of the intersection of the rectangular groove and the annular groove. A rectangular cavity is opened on the bottom surface of the slider, and a limiting member is provided in the rectangular cavity.

[0013] Preferably, the limiting member includes a limiting block slidably disposed in a rectangular cavity and a compression spring three disposed between the limiting block and the rectangular cavity, wherein the surface of the limiting block opposite to the arc-shaped surface four is the arc-shaped surface one.

[0014] Preferably, the sealing mechanism includes a sealing block that is slidably disposed on the outer wall of the stirring shaft and cooperates with the discharge pipe, and a plurality of top rods are slidably disposed on the bottom surface of the sealing block, and the top rods are fixedly connected to the inner bottom surface of the circular screen.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] The present invention uses a stirring mechanism to facilitate the stirring of soil in the drying drum, thereby ensuring uniform heating of the soil and further improving the efficiency of soil drying. The use of a reciprocating component facilitates the up-and-down movement of the stirring blades, thereby changing the position of the stirring blades in the drying drum and facilitating the stirring of soil in different locations, thus improving the practicality of the drying and screening device and increasing the efficiency of soil drying.

[0017] This invention achieves the raising and lowering of a circular screen by rotating a stirring shaft. The raising and lowering of the circular screen can also raise and lower the sealing block, thereby opening or closing the discharge pipe to control the flow of soil out of the drying cylinder. The use of connecting components facilitates the raising and lowering of the circular screen first, and then the rotation of the circular screen with the stirring shaft to achieve soil sieving, which facilitates the removal of soil lumps or impurities and further facilitates the obtaining of suitable soil samples. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure from a frontal view provided according to an embodiment of the present invention is shown;

[0019] Figure 2 A schematic diagram of a structure without a mounting bracket according to an embodiment of the present invention is shown;

[0020] Figure 3 A schematic cross-sectional view of the structure provided in an embodiment of the present invention is shown;

[0021] Figure 4 A top-view cross-sectional structural diagram is shown according to an embodiment of the present invention;

[0022] Figure 5 A first-view structural schematic diagram of a stirring mechanism provided according to an embodiment of the present invention is shown.

[0023] Figure 6 A second-view structural schematic diagram of the stirring structure provided according to an embodiment of the present invention is shown;

[0024] Figure 7 A schematic diagram of the structure of the limiting member provided according to an embodiment of the present invention is shown.

[0025] Legend:

[0026] 1. Drying cylinder; 2. Mounting plate; 3. Drive motor; 4. Feed hopper; 5. Discharge pipe; 6. Rectangular trough; 7. Annular trough; 8. Support; 9. Top rod; 10. Circular screen; 11. External thread; 12. Compression spring one; 13. Circular limit plate one; 14. Connecting frame; 15. Stirring blade; 16. Stirring shaft; 17. Annular plate; 18. Sealing block; 19. Top block; 20. Rotating block; 21. Circular limit plate two; 22. Sliding block; 23. Base plate; 24. Compression spring two; 25. Compression spring three; 26. Limiting block; 27. Arc surface one; 28. Annular ring; 29. ​​Arc surface two; 30. Arc surface three; 31. Rectangular cavity; 32. Arc surface four. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1 - Figure 7 The present invention provides a technical solution:

[0029] A rapid soil drying and screening device for soil testing includes a drying cylinder 1, with a heater installed inside the drying cylinder 1 for drying the soil inside the drying cylinder 1; a feed hopper 4, which is welded or bolted to the top edge of the drying cylinder 1 for injecting soil into the drying cylinder 1; a mounting frame and a discharge pipe 5 disposed at the bottom of the drying cylinder 1; wherein the mounting frame includes an annular ring 28 and mounting plates 2 symmetrically fixed to the outer wall of the annular ring 28, and the annular ring 28 is fixed to the outer wall of the drying cylinder 1 by welding or bolting for mounting the drying cylinder 1; and the mounting plates 2 can be bolted to a suitable installation position on the drying cylinder 1; the drying cylinder... Inside the drying cylinder 1, a stirring shaft 16 is installed via a drive motor 3, which is mounted on the top center of the drying cylinder 1 via a motor frame. The stirring shaft 16 is located at the center of the drying cylinder 1 and is used to drive the stirring blades 15 to rotate, thereby stirring the soil inside the drying cylinder 1 and facilitating rapid drying of the soil. The bottom of the stirring shaft 16 passes through a discharge pipe 5, which can be fixed to the bottom of the drying cylinder 1 by welding. A stirring mechanism is provided on the outer wall of the stirring shaft 16 inside the drying cylinder 1. The use of the stirring mechanism facilitates stirring of the soil inside the drying cylinder 1, thereby facilitating uniform heating of the soil and further improving the efficiency of soil drying.

[0030] The bottom of the stirring shaft 16 is equipped with a sieving mechanism for soil sieving; the use of the sieving mechanism makes it easy to sieve the dried soil, and to sieve unqualified soil clods or impurities in the soil, thereby making it easier to obtain suitable soil samples.

[0031] The outer wall of the mixing shaft 16 is provided with a sealing mechanism for sealing the discharge pipe 5. The use of the sealing mechanism makes it easy to seal the discharge pipe 5, avoiding soil leakage when drying the soil, thus facilitating the drying of the soil.

[0032] In this invention, the stirring mechanism includes a limiting rod fixed to the outer wall of the stirring shaft 16, which is fixed to the outer wall of the stirring shaft 16 by welding or bolting. This limiting rod is used to limit the position of the annular plate 17, thereby facilitating the limiting of the stirring blades 15 and further facilitating the stirring of the soil in the drying cylinder 1, thus promoting rapid soil drying. The annular plate 17 is symmetrically slidably disposed on the outer wall of the stirring shaft 16, and a connecting frame 14 is disposed between the annular plates 17. A limiting strip (not shown in the figure) is provided on the outer wall of the stirring shaft 16, and an opening is provided on the annular plate 17 to cooperate with the limiting strip, thereby limiting the position of the annular plate 17 and facilitating stirring. The blade 15 rotates with the stirring shaft 16; the connecting frame 14 is fixed between two annular plates 17 by welding, and is used to receive the stirring blade 15; multiple stirring blades 15 are evenly arranged on the inner wall of the connecting frame 14, and the stirring blades 15 are fixed on the connecting frame 14 by bolts, so as to facilitate the replacement of the stirring blades 15; the inner wall of the drying cylinder 1 is provided with a reciprocating assembly for the stirring blades 15 to move up and down; by using the reciprocating assembly, it is easy to drive the stirring blades 15 to move up and down, thereby facilitating the change of the position of the stirring blades 15 in the drying cylinder 1, thus facilitating the stirring of soil in different positions, improving the practicality of the drying and screening device and improving the efficiency of soil drying.

[0033] In this invention, the reciprocating assembly includes a circular limiting plate 13 disposed on an annular plate 17 at the top, and the circular limiting plate 13 and the annular plate 17 are fixedly connected by welding to limit the compression spring 12, thereby facilitating the compression of the compression spring 12 and further facilitating the resetting of the stirring blade 15; the circular limiting plate 13 is rotatably disposed with the stirring shaft 16, and the top of the stirring shaft 16 is rotatably disposed with a circular limiting plate 21, which is rotatably disposed with the drying cylinder 1, so that the compression spring 12 rotates with the stirring shaft 16; the compression spring 12 is disposed between the circular limiting plate 21 and the circular limiting plate 13, and the use of the compression spring 12 facilitates the compression of the stirring blade 15, thereby facilitating the automatic resetting of the stirring blade 15, so as to facilitate the mixing of the soil.

[0034] In this invention, the reciprocating assembly further includes a plurality of top blocks 19 uniformly arranged on the inner wall of the drying cylinder 1, and a rotating block 20 arranged on the top of the connecting frame 14. The top blocks 19 and the rotating block 20 are respectively fixed to the inner wall of the drying cylinder 1 and the connecting frame 14 by welding. Both ends of the top blocks 19 are provided with arc-shaped surfaces 29, and both ends of the rotating block 20 are provided with arc-shaped surfaces 30 that cooperate with the arc-shaped surfaces 29. Through the mutual cooperation of the arc-shaped surfaces 29 and the arc-shaped surfaces 30, the rotating block 20 can be lifted up, thereby driving the stirring blade 15 to move upward, which facilitates changing the position of the stirring blade 15, thereby facilitating the stirring of soil at different positions in the drying cylinder 1.

[0035] In this invention, the screening mechanism includes a circular screen 10 slidably disposed at the bottom of the stirring shaft 16, a base plate 23 fixedly connected to the bottom of the stirring shaft 16, and a compression spring 24 sleeved between the base plate 23 and the circular screen 10. The compression spring 24 facilitates the compression of the circular screen 10, thereby facilitating its reset. An external thread 11 that mates with the circular screen 10 is provided on the outer wall of the bottom of the stirring shaft 16, and an internal thread that mates with the external thread 11 is provided in the middle of the circular screen 10. The mutual cooperation of the internal and external threads 11 facilitates the lifting and lowering of the circular screen 10, thereby facilitating the opening of the sealing block 18. The top of the circular screen 10 is connected to the discharge pipe 5 through a connecting assembly. The connecting assembly facilitates the lifting and lowering of the circular screen 10 first, and then the rotation of the circular screen 10 with the stirring shaft 16 to achieve soil screening, facilitating the removal of large soil clods or impurities from the soil, and further facilitating the obtaining of suitable soil samples.

[0036] In this invention, the connecting assembly includes multiple supports 8 evenly arranged on the top of the circular screen 10, a slider 22 arranged on the supports 8, and an annular groove 7 opened on the outer wall of the discharge pipe 5. Multiple rectangular grooves 6 are opened on the bottom surface of the annular groove 7 in conjunction with the slider 22. The use of the rectangular grooves 6 and the slider 22 facilitates the limiting of the circular screen 10, thereby facilitating the lifting and lowering of the circular screen 10. An arc-shaped surface 32 is provided on one side of the intersection of the rectangular groove 6 and the annular groove 7. The use of the arc-shaped surface 32 facilitates the automatic entry of the limiting block 26 into the rectangular cavity 31, thereby releasing the limiting of the circular screen 10, thus facilitating the rotation of the circular screen 10 with the stirring shaft 16 to achieve soil screening. A rectangular cavity 31 is opened on the bottom surface of the slider 22. A limiting member is provided in the rectangular cavity 31. The use of the limiting member facilitates the limiting of the circular screen 10 when it is lowered, thereby facilitating the lowering of the circular screen 10 and achieving the reset of the circular screen 10.

[0037] In this invention, the limiting member includes a limiting block 26 slidably disposed in a rectangular cavity 31 and a compression spring 25 disposed between the limiting block 26 and the rectangular cavity 31. The surface of the limiting block 26 opposite to the arc surface 32 is an arc surface 27. By using the compression spring 25, the limiting block 26 can be compressed, thereby facilitating the automatic movement of the limiting block 26 into the rectangular groove 6, thereby limiting the circular screen 10 and facilitating the descent of the circular screen 10.

[0038] In this invention, the sealing mechanism includes a sealing block 18 that is slidably disposed on the outer wall of the stirring shaft 16 and cooperates with the discharge pipe 5. Multiple push rods 9 are slidably disposed on the bottom surface of the sealing block 18, and the push rods 9 are fixedly connected to the inner bottom surface of the circular screen 10. The top of the push rod 9 is provided with a T-shaped slider, and the bottom surface of the sealing block 18 is provided with a T-shaped groove to cooperate with the T-shaped slider, so as to facilitate the sliding of the push rod 9 and prevent the push rod 9 from separating from the sealing block 18. This makes it easy for the circular screen 10 to drive the sealing block 18 to rise and fall when it rises and falls, thereby facilitating the sealing or opening of the discharge pipe 5.

[0039] Working principle: Before use, the drying cylinder 1 is installed in a suitable position using bolts and a mounting bracket;

[0040] In use, an appropriate amount of soil sample is injected into the drying cylinder 1 through the feed hopper 4, and then the heater inside the drying cylinder 1 is turned on to dry the soil inside the drying cylinder 1. During drying, the drive motor 3 is started and the output shaft of the drive motor 3 is rotated clockwise, which causes the stirring shaft 16 to drive the annular plate 17, the connecting frame 14 and the stirring blade 15 to rotate, thereby drying the soil inside the drying cylinder 1.

[0041] When the output shaft of the drive motor 3 rotates clockwise, the circular screen 10 is at the bottom of the stirring shaft 16 and is spinning freely, so that the circular screen 10 is at the bottom of the discharge pipe 5 and will not rise.

[0042] When the connecting frame 14 rotates, it will drive the rotating block 20 to rotate. The arc surface 30 on the rotating block 20 and the arc surface 29 on the top block 19 cooperate to move the rotating block 20 onto the top block 19, thereby lifting the stirring blade 15. When the rotating block 20 separates from the top block 19, the stirring blade 15 is reset under the action of the compression spring 12, thereby realizing the reciprocating movement of the stirring blade 15, which facilitates the stirring of soil at different positions in the drying cylinder 1 and improves the efficiency of soil drying.

[0043] After drying is completed, control the drive motor 3 to make the output shaft of the drive motor 3 rotate counterclockwise. Then, under the compression of the compression spring 24, the internal thread on the circular screen 10 engages with the external thread 11 on the stirring shaft 16. Then, with the cooperation of the rectangular groove 6 and the slider 22, the circular screen 10 moves upward.

[0044] The upward movement of the circular screen 10 will cause the top rod 9 to move upward, which in turn will cause the sealing block 18 to move upward, thereby blocking the sealing block 18. Then, the discharge pipe 5 is opened, and the dried soil in the drying cylinder 1 leaks onto the circular screen 10 along the discharge pipe 5.

[0045] As the circular screen 10 moves upward, it drives the slider 22 to move upward. When the slider 22 moves to the annular groove 7, the arc surface 27 and the arc surface 32 on the limiting block 26 are opposite to each other, thereby moving the slider 22 into the annular groove 7, releasing the fixation of the circular screen 10, so that the circular screen 10 can be screened by rotating the stirring shaft 16.

[0046] After screening is completed, the drive motor 3 is controlled to rotate clockwise. Then, under the action of the compression spring 25, the limiting block 26 is engaged in the rectangular groove 6, thereby limiting the circular screen 10. Then, the circular screen 10 moves downward, and when the circular screen 10 moves downward, it will drive the sealing block 18 to move upward. Finally, after the circular screen 10 is reset, the sealing block 18 seals the discharge pipe 5 for reuse.

[0047] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A soil rapid drying screening device for soil detection, comprising a drying cylinder (1), a feeding hopper (4) arranged on the drying cylinder (1), a mounting frame, and a discharging pipe (5) arranged at the bottom of the drying cylinder (1), characterized in that, The dry cylinder (1) is provided with a rotatable stirring shaft (16), and the bottom of the stirring shaft (16) penetrates the discharge pipe (5), and the outer wall of the stirring shaft (16) in the dry cylinder (1) is provided with a stirring mechanism; The bottom of the stirring shaft (16) is provided with a screening mechanism for soil screening; The outer wall of the stirring shaft (16) is provided with a plugging mechanism for plugging the discharge pipe (5); The screening mechanism comprises a circular screen (10) slidingly arranged at the bottom of the stirring shaft (16), and the top of the circular screen (10) is connected with the discharge pipe (5) through a connecting assembly; The connecting assembly comprises a plurality of supports (8) uniformly arranged at the top of the circular screen (10), a sliding block (22) arranged on the support (8), and an annular groove (7) opened on the outer wall of the discharge pipe (5), a plurality of rectangular grooves (6) are opened on the bottom surface of the annular groove (7) and matched with the sliding block (22), one side of the intersection of the rectangular groove (6) and the annular groove (7) is provided with an arc face four (32), and a rectangular cavity (31) is opened on the bottom surface of the sliding block (22), and a limiting piece is arranged in the rectangular cavity (31); The limiting piece comprises a limiting block (26) slidingly arranged in the rectangular cavity (31) and an extrusion spring three (25) arranged between the limiting block (26) and the rectangular cavity (31), and the surface opposite to the arc face four (32) of the limiting block (26) is an arc face one (27).

2. The soil rapid drying screening device for soil detection according to claim 1, characterized in that, The stirring mechanism comprises a limiting rod fixedly connected to the outer wall of the stirring shaft (16), an annular plate (17) symmetrically slidingly arranged on the outer wall of the stirring shaft (16), and a connecting frame (14) arranged between the annular plates (17), a plurality of stirring blades (15) are uniformly arranged on the inner wall of the connecting frame (14), and a reciprocating assembly for the stirring blades (15) to move up and down is arranged on the inner wall of the dry cylinder (1).

3. The soil rapid drying screening device for soil detection according to claim 2, characterized in that, The reciprocating assembly comprises a circular limiting plate one (13) arranged on the top of the annular plate (17), and the circular limiting plate one (13) is rotatably arranged with the stirring shaft (16), the stirring shaft (16) is rotatably provided with a circular limiting plate two (21) at the top, and the circular limiting plate two (21) is rotatably arranged with the dry cylinder (1), and an extrusion spring one (12) is arranged between the circular limiting plate two (21) and the circular limiting plate one (13).

4. The soil rapid drying screening device for soil detection according to claim 3, characterized in that, The reciprocating assembly further comprises a plurality of top blocks (19) uniformly arranged on the inner wall of the dry cylinder (1) and a rotating block (20) arranged at the top of the connecting frame (14), and the two ends of the top block (19) are provided with arc faces two (29), and the two ends of the rotating block (20) are provided with arc faces three (30) matched with the arc faces two (29).

5. The soil rapid drying screening device for soil testing according to claim 4, characterized in that, The screening mechanism further comprises a bottom plate (23) fixedly connected to the bottom of the stirring shaft (16) and an extrusion spring two (24) sleeved between the bottom plate (23) and the circular screen (10), and an external thread (11) matched with the circular screen (10) is opened on the outer wall of the bottom of the stirring shaft (16).

6. The soil rapid drying screening device for soil testing according to claim 5, characterized in that, The blocking mechanism comprises a blocking block (18) slidingly arranged on the outer wall of the stirring shaft (16) and matched with the discharge pipe (5), a plurality of jacks (9) are slidingly arranged on the bottom surface of the blocking block (18), and the jacks (9) are fixedly connected with the inner bottom surface of the circular screen (10).

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