CN115307395A

CN115307395A - Soil drying device for environmental detection

Info

Publication number: CN115307395A
Application number: CN202210835413.6A
Authority: CN
Inventors: 杨钊
Original assignee: Jiangsu Design And Research Institute Of Geology And Mineral Resources Test Center Of China Coal Geology Administration
Current assignee: Jiangsu Design And Research Institute Of Geology And Mineral Resources Test Center Of China Coal Geology Administration
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2022-11-08

Abstract

The invention relates to the technical field of environmental detection, and discloses a soil drying device for environmental detection, which comprises a main cabinet body and a drying box, wherein a first support is fixedly arranged in the drying box, a soil sampling box is movably arranged between two groups of first supports, a shaking spring is fixedly arranged at the position, corresponding to the lower part of the soil sampling box, of the bottom end surface of the drying box, two groups of second supports are fixedly arranged at the position, corresponding to the rear part of the soil sampling box, of the bottom end surface of the drying box, a blowing plate is fixedly arranged between the two groups of second supports, a blowing pipe is fixedly arranged at the rear end surface of the drying box and is positioned above a first rotating shaft, a linkage plate is fixedly arranged at the position, close to the first rotating shaft, of the rear end surface of the soil sampling box, and the blowing plate is overlapped with the linkage plate in horizontal projection when the blowing plate rotates to the position above the linkage plate. According to the invention, when the blowing plate is driven to rotate by hot air, the blowing plate extrudes the linkage plate, so that sample soil in the sample soil box is shaken and collided with each other, the structure of the sample soil is loosened, the hot air is more fully contacted with the sample soil, and the sample soil drying efficiency is accelerated.

Description

Soil drying device for environmental detection

Technical Field

The invention relates to the technical field of environment detection, in particular to a soil drying device for environment detection.

Background

Soil environment monitoring means determining environment quality (or pollution degree) and change trend thereof by measuring representative values of factors affecting soil environment quality; the soil monitoring generally refers to soil environment monitoring, which generally includes technical contents such as stationed sampling, sample preparation, analysis method, result characterization, data statistics, quality evaluation and the like.

The method for detecting the water content of the soil is a basic environmental index, the most basic method for detecting the water content of the soil is a drying method, a soil sample is dried to constant weight at 105 ℃, at the moment, organic matters of the soil can not be decomposed, and free water and hygroscopic water in the soil are removed. And calculating the ratio of the water loss mass of the soil to the mass of the dried soil, namely the mass water content.

Present soil drying device, when soil is dried, soil is motionless, hot-blast can only with the outer surface contact of soil, the contact is not abundant, can only slowly dry out whole moisture in the soil, waste time and energy, all need weigh around the sample soil is dried simultaneously, weigh before the stoving and shift to drying device in, sample soil loss can appear in the outer these two operations of the drying device of back transfer department that finishes of stoving, cause and measure inaccurately, it is many inconvenient when clearing up the interior storehouse of drying device in addition.

Therefore, the soil drying device for environment detection is provided.

Disclosure of Invention

The invention mainly solves the technical problems in the prior art and provides a soil drying device for environment detection.

In order to achieve the purpose, the invention adopts the following technical scheme that the soil drying device for environmental detection comprises a main cabinet body, wherein a plurality of groups of drying boxes are uniformly arranged at the upper end of the main cabinet body, two groups of first supports are fixedly arranged on the bottom end surface of each drying box in a bilateral symmetry mode, a soil sampling box is movably arranged between the two groups of first supports, a shaking spring is fixedly arranged at the position, corresponding to the lower portion of the soil sampling box, of the bottom end surface of each drying box, a tray is fixedly arranged on the top end surface of the shaking spring, the tray is tightly attached to the bottom end surface of the soil sampling box, two groups of second supports are fixedly arranged at the position, corresponding to the rear portion of the soil sampling box, of the bottom end surface of each drying box, a first rotating shaft capable of rotating around the axis of the second supports is fixedly arranged between the two groups of second supports, a blowing plate is uniformly and fixedly arranged on the outer wall surface of the first rotating shaft, an air blowing pipe is fixedly arranged on the rear end surface of each drying box, the output end of the air blowing pipe and the blowing plate above the first rotating shaft are at the same horizontal height, and a linkage plate is overlapped on a horizontal projection when the blowing plate rotates to the upper portion of the linkage plate.

Preferably, one end of the blowing plate close to the linkage plate is an arc surface.

As preferred, the top face of appearance soil box has the splashproof lid with detachable mode fixed mounting, and the splashproof lid is the casing of bottom face fretwork, the top of splashproof lid is the inclined plane towards four sides that the central shrink made the splashproof lid, the air channel that runs through the splashproof lid is all seted up to the side wall face around the splashproof lid, and the air channel is the horizontally rectangular channel, the middle part of splashproof lid is vertical direction fixed mounting and has the deep bead, and the bottom face width of deep bead is the twice of deep bead top face width.

Preferably, the top of first support is personally submitted left right direction movable mounting and is had the second pivot, and the one end integrated into one piece that the second pivot is close to the appearance soil box is provided with the stopper, and the stopper is the rectangular block, the spacing groove has been seted up to the lateral wall face of appearance soil box, and the rear end face that the spacing groove is L shape groove and spacing groove runs through the rear end face of appearance soil box, the stopper can slide around the spacing inslot.

Preferably, the position of the upward bending part of the limiting groove is located at three quarters of the side wall surface of the sample soil box, namely, after the sample soil box is installed, the distance between the first support and the rear end surface of the sample soil box is three times that between the first support and the front end surface of the sample soil box.

Preferably, a box door is movably mounted on the front end face of the main cabinet body corresponding to the position of the drying box, an observation window is fixedly mounted in the middle of the box door, and the observation window is made of tempered glass.

Preferably, three groups of equipment cabinets are integrally formed at the bottom end of the main cabinet, and a main exhaust hole, a hot air blower and an air filtering box are fixedly mounted in the left, middle and right equipment cabinets respectively.

Preferably, a branch exhaust hole is vertically and downwards fixedly installed at the position, corresponding to the air vent groove in front of the splash guard, of the top end face of the drying box, and the other end of the branch exhaust hole is communicated with the main exhaust hole.

Preferably, the output end of the hot air blower is fixedly provided with air pipes which are respectively communicated with the air blowing pipes in the drying box.

Preferably, the output end of the air filtering box is communicated with the input end of the air heater, the input end of the air filtering box is fixedly provided with an air inlet pipe, the air inlet pipe penetrates through the main cabinet body and extends out of the main cabinet body, and the inside of the air filtering box is fixedly provided with activated carbon, filter material and dehydrating agent from bottom to top in sequence.

Advantageous effects

The invention provides a soil drying device for environment detection. The method has the following beneficial effects:

(1) This soil drying device for environmental monitoring, when the hot-blast drive that the gas blow pipe blew off blows the board rotation, blow board extrusion linkage board, make appearance soil box swing back and forth under the support of first support, it rocks the spring to rock the in-process extrusion, make and rock the spring and save elasticity, strengthen the dynamics of rocking of appearance soil box, make appearance soil in the appearance soil box take place to rock, the mutual collision, the structure of loose appearance soil makes hot-blast and appearance soil contact more abundant, accelerate appearance soil drying efficiency.

(2) This soil drying device for environmental monitoring, the hot-blast accessible rear air channel that the gas blow pipe blew off gets into the sample soil box in, turns to the sample soil in the sample soil box sheltering from through the deep bead, then flows from the air channel department in splashproof lid the place ahead, and the splashproof lid can make the sample soil box at the in-process of rocking simultaneously, prevents in the sample soil splashproof sample soil box and guide hot-blast and sample soil fully contact.

(3) This soil drying device for environmental detection, the stopper can slide around the spacing inslot, slides when the stopper to the spacing groove department of buckling, and the appearance soil box blocks the stopper downwards under the effect of gravity to make appearance soil box be convenient for take off and install, can link the appearance soil box to weigh together around drying, the data is more accurate, and it is more convenient to wash.

(4) This soil drying device for environmental detection, the stopper can slide around the spacing inslot, slides when the stopper to the spacing groove department of buckling, and the appearance soil box blocks the stopper downwards under the effect of gravity to make appearance soil box be convenient for take off and install.

(5) This soil drying device for environmental monitoring sets up the gas filtering box through the input at the air heater to make external space filter, adsorb and the dehydration through the gas filtering box, purify the air that carries out the stoving to appearance soil, guarantee the purity of appearance soil, reduce and detect the data error.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other implementation drawings may be derived by those of ordinary skill in the art without inventive effort from the drawings provided.

The structures, the proportions, the sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical essence, and any modifications of the structures, changes of the proportion relation, or adjustments of the sizes, should still fall within the range covered by the technical contents disclosed in the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a disassembled view of the inner structure of the drying box of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a partial cross-sectional view of the present invention;

FIG. 4 is a schematic view of the internal structure of the equipment cabinet of the present invention.

Illustration of the drawings:

1. a main cabinet body; 2. a drying box; 3. a first bracket; 4. a soil sampling box; 5. shaking the spring; 6. a tray; 7. a second bracket; 8. a first rotating shaft; 9. blowing a plate; 10. an air blowing pipe; 11. a linkage plate; 12. a splash cover; 13. a vent channel; 14. a wind deflector; 15. a second rotating shaft; 16. a limiting block; 17. a limiting groove; 18. a box door; 19. an observation window; 20. an equipment cabinet; 21. a hot air blower; 22. a gas delivery pipe; 23. an air inlet pipe; 24. a gas filtering box; 25. activated carbon; 26. a filter material; 27. a dehydrating agent; 28. a branch exhaust hole; 29. a total exhaust hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The embodiment is as follows: a soil drying device for environmental detection is disclosed, as shown in figures 1-4, and comprises a main cabinet body 1, wherein a plurality of groups of drying boxes 2 are uniformly arranged at the upper end of the main cabinet body 1, two groups of first supports 3 are fixedly arranged on the bottom end surfaces of the drying boxes 2 in a bilateral symmetry manner, a sample soil box 4 is movably arranged between the two groups of first supports 3, the sample soil box 4 is a rectangular shell with a hollow top end surface, a shaking spring 5 is fixedly arranged on the bottom end surface of the drying box 2 corresponding to the position below the sample soil box 4, a tray 6 is fixedly arranged on the top end surface of the shaking spring 5, the tray 6 is tightly attached to the bottom end surface of the sample soil box 4, two groups of second supports 7 are fixedly arranged on the bottom end surface of the drying box 2 corresponding to the position behind the sample soil box 4, a first rotating shaft 8 capable of rotating around the axis of the second supports 7 is fixedly arranged between the two groups of second supports 7, a blowing plate 9 is uniformly and fixedly arranged on the outer wall surface of the first rotating shaft 8, the rear end face fixed mounting of stoving case 2 has gas blow pipe 10 and the output of gas blow pipe 10 and is in same level with the blowing board 9 that is in first pivot 8 top, the position fixed mounting that the rear end face of appearance soil box 4 is close to first pivot 8 has linkage plate 11, blow and overlap on the horizontal projection with linkage plate 11 when board 9 rotates to linkage plate 11 top, when hot-blast drive that gas blow pipe 10 blew out blows board 9 and rotates, blow board 9 extrusion linkage plate 11, make appearance soil box 4 swing from beginning to end under the support of first support 3, rock in-process extrusion rock spring 5, make rock spring 5 save elasticity, strengthen the dynamics of rocking of appearance soil box 4, make appearance soil in the appearance soil box 4 take place to rock, collision each other, the structure of loose appearance soil, make hot-blast and appearance soil contact more abundant, accelerate appearance soil drying efficiency.

One end of the blowing plate 9 close to the linkage plate 11 is a cambered surface, so that the friction force between the blowing plate 9 and the linkage plate 11 is reduced when the blowing plate 9 extrudes the linkage plate 11.

The top face of appearance soil box 4 has splashproof lid 12 with detachable mode fixed mounting, and splashproof lid 12 is the casing of bottom face fretwork, the top of splashproof lid 12 is the inclined plane towards the central shrink four sides that make splashproof lid 12, the air channel 13 that runs through splashproof lid 12 is all seted up to the side wall face around splashproof lid 12, and air channel 13 is the horizontally rectangular channel, the middle part of splashproof lid 12 is vertical direction fixed mounting and has a deep bead 14, and the bottom face width of deep bead 14 is the twice of the 14 top face widths of deep bead, and hot-blast accessible rear air channel 13 that gas blow pipe 10 blew off gets into in the appearance soil box 4, turns to the appearance soil in the appearance soil box 4 in sheltering from through deep bead 14, then flows from the air channel 13 department in the 12 the place ahead of splashproof lid, and simultaneously splashproof lid 12 can make appearance soil box 4 in rocking the in-process, prevents that the appearance soil from splashing out in the appearance soil box 4.

The top of first support 3 is personally submitted left right direction movable mounting and is had second pivot 15, and second pivot 15 is close to the one end integrated into one piece of appearance soil box 4 and is provided with stopper 16, and stopper 16 is the rectangular block, spacing groove 17 has been seted up to the side wall face of appearance soil box 4, and spacing groove 17 runs through the rear end face of appearance soil box 4 for the rear end face of L shape groove and spacing groove 17, stopper 16 can slide around limiting groove 17, when stopper 16 slides to spacing groove 17 department of buckling, blocks stopper 16 downwards under the effect of gravity for appearance soil box 4 to make appearance soil box 4 be convenient for take off and install.

The position of the upward bending position of the limiting groove 17 is located at three fourths of the side wall surface of the sample soil box 4, namely after the sample soil box 4 is installed, the distance between the first support 3 and the rear end surface of the sample soil box 4 is three times that between the first support 3 and the front end surface of the sample soil box 4, so that the moment generated when the blowing plate 9 presses the linkage plate 11 to drive the sample soil box 4 to rock is longer and more labor-saving.

The position that the preceding terminal surface of the main cabinet body 1 corresponds stoving case 2 has chamber door 18, and the middle part fixed mounting of chamber door 18 has observation window 19, and observation window 19 is toughened glass, makes the staff conveniently run through stoving 2 internal plant operation conditions of case.

The bottom end of the main cabinet body 1 is integrally provided with three groups of equipment cabinet bodies 20, and a main exhaust hole 29, an air heater 21 and an air filtering box 24 are respectively and fixedly arranged in the left, middle and right equipment cabinet bodies 20.

The hot air blower 21 is an existing structure and is not described in detail herein, the output end of the hot air blower 21 is fixedly provided with the air delivery pipe 22, and the air delivery pipe 22 is respectively communicated with the air blowing pipes 10 in the nine sets of drying boxes 2 to improve hot air for the air blowing pipes 10.

The output of air filtering box 24 communicates with each other with the input of air heater 21, the input fixed mounting of air filtering box 24 has intake pipe 23, intake pipe 23 runs through the main cabinet body 1 and extends to outside the main cabinet body 1, air filtering box 24's inside from bottom to top fixed mounting has active carbon 25, filter media 26 and dehydrating agent 27 in proper order, filter for the air that gets into air heater 21, adsorb and dewater, purify the air that carries out the stoving to the sample soil, guarantee the purity of sample soil, reduce the detection data error.

The top end face of the drying box 2 is vertically and downwards fixedly provided with a branch exhaust hole 28 corresponding to the position of the air channel 13 in front of the splash cover 12, and the other end of the branch exhaust hole 28 is communicated with the main exhaust hole 29, so that waste gas is uniformly discharged, and waste gas recovery and monitoring are convenient to perform.

The working principle of the invention is as follows: when the hot air blown out by the air blowing pipe 10 drives the blowing plate 9 to rotate, the blowing plate 9 extrudes the linkage plate 11, the sample soil box 4 swings back and forth under the support of the first support 3, the spring 5 is extruded and shaken in the shaking process, the spring 5 accumulates elastic force, the shaking force of the sample soil box 4 is enhanced, the sample soil in the sample soil box 4 is shaken and collides with each other, the structure of the loose sample soil makes the contact between the hot air and the sample soil more sufficient, and the sample soil drying efficiency is accelerated.

Hot air blown out by the air blowing pipe 10 can enter the sample soil box 4 through the rear vent groove 13, turns to sample soil in the sample soil box 4 through shielding of the air blocking plate 14, and then flows out from the vent groove 13 in front of the splash cover 12, and meanwhile, the splash cover 12 can enable the sample soil box 4 to prevent the sample soil from splashing out of the sample soil box 4 and guide the hot air to be in full contact with the sample soil.

The limiting block 16 can slide back and forth in the limiting groove 17, and when the limiting block 16 slides to the bending part of the limiting groove 17, the limiting block 16 is clamped downwards by the sample soil box 4 under the action of gravity, so that the sample soil box 4 is convenient to take down and install.

The design that the cambered surface of the blowing plate 9 and the first support 3 are located at the front end of the sample soil box 4 is utilized, so that the moment when the blowing plate 9 presses the linkage plate 11 to drive the sample soil box 4 to rock is longer, the labor is saved, the friction force is smaller, and the blowing plate 9 is driven to rock the sample soil box 4 more easily by hot air.

Through setting up the filtration case 24 at air heater 21's input to make external space filter, adsorb and the dehydration through filtration case 24, purify the air that carries out the stoving to the sample soil, guarantee the purity of sample soil, reduce the detection data error.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts the mature conventional means in the prior art, the machinery, the parts and the equipment all adopt the conventional types in the prior art, the circuit connection adopts the conventional connection mode in the prior art, no specific description is provided here, meanwhile, the electric elements appearing in the specification are all electrically connected with an external main controller and a mains supply, the peripheral controller mentioned in the specification can play a control role for the electric elements mentioned in the specification, and the peripheral controller is the conventional known equipment.

Claims

1. The utility model provides a soil drying device for environmental detection, includes the main cabinet body (1), its characterized in that: multiunit stoving case (2) have evenly been seted up to the upper end of the main cabinet body (1), the bottom face bilateral symmetry fixed mounting of stoving case (2) has two sets of first supports (3), movable mounting has sample soil box (4) between two sets of first supports (3), the position fixed mounting that the bottom face of stoving case (2) corresponds sample soil box (4) below has rocking spring (5), the top face of rocking spring (5) is fixed according to having tray (6), tray (6) are hugged closely with the bottom face of sample soil box (4), the position fixed mounting that the bottom face of stoving case (2) corresponds sample soil box (4) rear has two sets of second supports (7), fixed mounting has first pivot (8) that can wind self axis rotation between two sets of second supports (7), the even fixed mounting of the outer wall of first pivot (8) has blow board (9), the rear end face fixed mounting of stoving case (2) has output of gas blow pipe (10) and blow board (9) that are in first pivot (8) top be in same height, blow board (11) are close to horizontal position on the linkage board (11) when the rotation, blow board (11) overlap the horizontal position (11) and blow board (11) and blow the horizontal plane (11) are close to the rotation.

2. The soil drying device for environmental testing of claim 1, wherein: one end of the blowing plate (9) close to the linkage plate (11) is a cambered surface.

3. The soil drying device for environmental testing of claim 1, wherein: the top face of appearance soil box (4) has splashproof lid (12) with detachable mode fixed mounting, and splashproof lid (12) are the casing of bottom face fretwork, the top of splashproof lid (12) is the inclined plane towards four sides that the central shrink made splashproof lid (12), air channel (13) that run through splashproof lid (12) are all seted up to the side wall face around splashproof lid (12), and air channel (13) are the horizontally rectangular channel, the middle part of splashproof lid (12) is vertical direction fixed mounting and has deep bead (14), and the bottom face width of deep bead (14) is the twice of deep bead (14) top face width.

4. The soil drying device for environmental testing of claim 1, wherein: the top of first support (3) is personally submitted left right direction movable mounting and is had second pivot (15), and one end integrated into one piece that second pivot (15) are close to appearance soil box (4) is provided with stopper (16), and stopper (16) are the rectangular block, spacing groove (17) have been seted up to the side wall face of appearance soil box (4), and rear end face that spacing groove (17) were L-shaped groove and spacing groove (17) runs through the rear end face of appearance soil box (4), stopper (16) can slide around in spacing groove (17).

5. The soil drying device for environmental testing of claim 4, wherein: the position of the upward bending part of the limiting groove (17) is located at three quarters of the side wall surface of the sample soil box (4), namely after the sample soil box (4) is installed, the distance between the first support (3) and the rear end surface of the sample soil box (4) is three times that between the first support (3) and the front end surface of the sample soil box (4).

6. The soil drying device for environmental testing of claim 1, wherein: the front end face of the main cabinet body (1) is movably provided with a box door (18) corresponding to the position of the drying box (2), the middle part of the box door (18) is fixedly provided with an observation window (19), and the observation window (19) is made of toughened glass.

7. The soil drying device for environmental testing of claim 1, wherein: the bottom end integrated into one piece of the main cabinet body (1) is provided with three groups of equipment cabinet bodies (20), and a main exhaust hole (29), an air heater (21) and an air filtering box (24) are respectively and fixedly installed in the left, middle and right equipment cabinet bodies (20).

8. The soil drying device for environmental testing of claim 7, wherein: the top end face of the drying box (2) is vertically and downwards fixedly provided with a branch exhaust hole (28) at a position corresponding to the front vent groove (13) of the splash cover (12), and the other end of the branch exhaust hole (28) is communicated with a main exhaust hole (29).

9. The soil drying device for environmental testing of claim 7, wherein: the output end of the hot air blower (21) is fixedly provided with a gas pipe (22), and the gas pipe (22) is respectively communicated with a gas blowing pipe (10) in the drying box (2).

10. The soil drying device for environmental monitoring of claim 9, wherein: the output of straining gas tank (24) communicates with each other with the input of air heater (21), and the input fixed mounting of straining gas tank (24) has intake pipe (23), and outside intake pipe (23) run through the main cabinet body (1) and extend to the main cabinet body (1), the inside of straining gas tank (24) fixed mounting in proper order from bottom to top has active carbon (25), filter media (26) and dehydrating agent (27).