Soil nutrient deposition analysis device and method

Abstract

The invention discloses a soil nutrient deposition analysis device and method.The soil nutrient deposition analysis device comprises a shell, a feeding box is arranged at the upper end of the shell, a first-stage screening net plate is arranged in the feeding box, the interior of the first-stage screening net plate is divided into a plurality of crushing bins through partition plates, a first-stage crushing assembly is arranged in the first-stage screening net plate, and a second-stage crushing assembly is arranged in the second-stage screening net plate; the bottom of the feeding box is connected with a first-stage crushing assembly, the bottom of the feeding box is connected with a second-stage crushing assembly, the first-stage crushing assembly and the second-stage crushing assembly are both controlled by a soil crushing mechanism to operate at the same time, a metering scale is arranged below the second-stage crushing assembly, a metering cylinder is arranged at the upper end of the metering scale, and the lower end of the metering cylinder is connected with a dissolving cylinder. Multiple soil samples can be put into the multiple crushing bins at the same time, and subsequent detection results can be analyzed and compared conveniently; the soil is subjected to two-stage crushing, then the soil is subjected to two-stage screening through the first-stage screening net plate and the second-stage screening net plate, impurities can be fully filtered out, and purer soil is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of soil detection, and in particular to a soil nutrient deposition analysis device and method. Background Art

[0002] In order to understand the sustainable development of a specific area, it is necessary to quantify indicators such as water conservation, soil protection, carbon fixation and oxygen release, atmospheric purification, and nutrient accumulation. Among them, the detection and analysis of soil nutrients is a very important indicator.

[0003] The soil is divided into multiple layers from the ground surface vertically downward, including organic layer, humus layer, leaching layer and other soil layers. The characteristics and nutrient content of each layer are different. If you want to fully understand the soil nutrient indicators of the region, you need to test multiple soil layers and take samples from multiple locations. Therefore, more samples need to be tested. The existing soil nutrient deposition analysis device has a relatively single function and can only detect and analyze one sample at a time, which is inefficient and not convenient for intuitive comparison with samples from the same batch. Summary of the invention

[0004] The object of the present invention is to provide a soil nutrient deposition analysis device and method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a soil nutrient deposition analysis device, comprising a shell, a feed box is provided at the upper end of the shell, and a primary discharge port is provided at the bottom of the feed box, a primary screening mesh plate is provided inside the feed box, and a primary crushing assembly is provided inside the primary screening mesh plate; A secondary crushing assembly is connected to the bottom of the feed box, and both the primary crushing assembly and the secondary crushing assembly are controlled by the soil crushing mechanism to operate simultaneously; A metering scale is provided below the secondary crushing assembly, a metering cylinder is provided at the upper end of the metering scale, and the upper end of the metering cylinder is connected to the discharge port of the secondary crushing assembly; The lower end of the metering cylinder is connected to a dissolving cylinder, and the interior of the dissolving cylinder is driven to stir by a stirring mechanism; The first-stage screening mesh plate is in an arc shape, and a plurality of partition plates perpendicular to the axis direction of the first-stage screening mesh plate are arranged inside the first-stage screening mesh plate, and the partition plates divide the first-stage screening mesh plate into a plurality of crushing bins, and the metering cylinder and the dissolving cylinder match the number of the crushing bins; A liquid collection platform is provided on one side of the shell, an operation panel is provided on the front of the liquid collection platform near the upper end, and a liquid outlet matching the dissolving cylinder is provided below the operation panel.

[0006] Preferably, the primary crushing assembly includes a plurality of swing frames, and each crushing bin is provided with a swing frame, two adjacent swing frames are connected by a coupling, a crushing roller is rotatably mounted inside the swing frame, and a gap is provided between the crushing roller and the inner arc surface of the primary screening mesh plate; Push plates for leveling the soil are arranged on both sides of the crushing roller, and the push plates are fixedly connected to both sides of the swing frame.

[0007] Preferably, the secondary crushing assembly includes a plurality of fixed cylinders, and each fixed cylinder is arranged corresponding to each crushing bin; A rotating shaft is rotatably mounted inside the shell, the rotating shaft passes through the middle of all the fixed cylinders at the same time and is rotatably connected to the fixed cylinders, a stirring plate matching the fixed cylinders is fixedly mounted on the rotating shaft, and a plurality of through holes are evenly distributed on the stirring plate; A plurality of steel balls are movably arranged inside the fixed cylinder, and the steel balls are driven to move inside the fixed cylinder by the stirring plate; A secondary feed port is provided at the upper end of the fixed cylinder, the secondary feed port is connected to the primary discharge port, a secondary discharge port is provided at the bottom of the fixed cylinder, and a secondary screening mesh plate is provided at the top of the secondary discharge port.

[0008] Preferably, the soil crushing mechanism comprises a gear fixedly connected to one side of the swing frame, the gear is meshedly connected with a rack, and guide posts are provided at both ends of the rack; A U-shaped frame is provided on one side of the upper end of the feed box, the rack slides on the inner side of the U-shaped frame through a guide column, a lower plate is provided at the lower end of the rack, and strip-shaped through grooves distributed up and down are provided on the lower plate; A turntable is rotatably mounted on one side of the feed box, an eccentric column is provided on the outer end surface of the turntable, a roller is rotatably mounted on the outer diameter of the eccentric column, the roller is located inside the strip-shaped through groove and is movably connected to the strip-shaped through groove; A first synchronous wheel is coaxially arranged inside the rotating disk, and a first synchronous wheel is also arranged at one end of the rotating shaft, and the two first synchronous wheels are connected by a first synchronous belt transmission; The rotating shaft is driven to rotate by a first motor.

[0009] Preferably, the stirring mechanism includes a second partition located inside the shell, and the dissolving cylinders are fixed on the upper end of the second partition, a stirring frame is provided inside the dissolving cylinders, and the stirring frame is rotatably mounted on the second partition, and a second synchronous wheel is provided at the bottom of the stirring frame, and the second synchronous wheel is located below the second partition; The stirring mechanism also includes an active synchronous wheel driven to rotate by a second motor, and the active synchronous wheel and all the second synchronous wheels are connected through a second synchronous belt transmission.

[0010] Preferably, swing arms are provided on both sides of the upper end of the swing frame, fixed shafts are provided on both sides of the swing arms, two adjacent swing frames are connected by fixed shafts and couplings, fixed plates are provided on the upper ends of the partition plates, the couplings are fixedly mounted on the fixed plates, and the couplings are coaxial with the primary screening mesh plate.

[0011] Preferably, a secondary discharge pipe is provided at the bottom of the secondary discharge port, and the secondary discharge pipe is provided with a first solenoid valve; A second electromagnetic valve is arranged at the bottom of the metering cylinder.

[0012] Preferably, a first partition is provided inside the shell, the fixing cylinder is fixedly mounted on the upper end of the first partition via a bottom bracket, and a buffer pad is provided between the first partition and the bottom bracket of the fixing cylinder.

[0013] Preferably, a plurality of tension wheels are rotatably mounted on the bottom of the second partition plate, and the tension wheels squeeze the outer side of the second synchronous belt toward the inner side.

[0014] A soil nutrient deposition analysis method comprises the following steps: S1. Drying: first remove the obvious impurities in each layer of soil, then remove the moisture from the soil to make it dry. The dry soil can facilitate further screening of impurities; S2. Screening: crushing and screening the soil of each layer at the same time. Put the soil of each layer in a separate crushing bin, and crush and screen the soil by the primary crushing component and the secondary crushing component respectively. S3, weighing, the soil of each layer falls into the corresponding metering cylinder after screening and is weighed by a metering scale, and the first solenoid valve is closed when the soil in the metering cylinder reaches the set weight; S4, dissolution, when the soil in all the metering cylinders reaches the set weight, the second solenoid valve is opened to allow each layer of soil to enter the corresponding dissolution cylinder for dissolution and be evenly stirred by the stirring mechanism; S5, liquid collection and testing, the volume of liquid collection is set through the operation panel, the liquid inside the dissolving cylinder is taken out through the liquid outlet, and the corresponding chemical reagents are added to the dissolving liquid to detect the nutrients deposited in each layer of soil, and finally the test results are analyzed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention can simultaneously input multiple soil samples through multiple crushing chambers, and can simultaneously process soils of different layers in the same area or soils of different regions in the same layer, which is convenient for analyzing and comparing subsequent test results; The soil is graded and crushed by the primary crushing component and the secondary crushing component, and then the soil is screened by the primary screening mesh plate and the secondary screening mesh plate, which can fully filter out impurities and obtain purer soil, preventing the dissolved liquid of the soil from clogging the equipment. In addition, the primary crushing component and the secondary crushing component can be driven to operate at the same time by the soil crushing mechanism, which can save energy. All dissolving cylinders contain the same volume of solution water and the same weight of soil measured by the measuring cylinder to form a solution. Adding corresponding chemical reagents to the dissolving solution can detect the nutrients deposited in each layer of soil, so that all samples can have reasonable longitudinal comparability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a front view of the present invention; Figure 4 is a side view of the present invention; Figure 5 For the present invention Figure 4 Detailed enlarged view of point A in the middle; Figure 6 It is a front cross-sectional view of the present invention; Figure 7 is a side cross-sectional view of the present invention; Figure 8 It is a partial cross-sectional view of the present invention; Fig. 9 It is a schematic diagram of the stirring mechanism of the present invention; Fig.10 This is a schematic diagram of the structure of the primary crushing assembly of the present invention; Fig.11 It is a schematic diagram of the stirring plate structure of the present invention.

[0017] In the figure: 1, shell; 11, feed box; 12, primary discharge port; 13, U-shaped frame; 14, first partition; 15, second partition; 2, primary screening mesh plate; 21, partition plate; 22, crushing chamber; 23, fixed plate; 3, primary crushing assembly; 31, swing frame; 32, coupling; 33, crushing roller; 34, push plate; 35, swing arm; 36, fixed shaft; 4, secondary crushing assembly; 41, fixed cylinder; 42, rotating shaft; 43, stirring plate; 44, steel ball; 45, secondary feed port; 46, secondary discharge port; 47, secondary screening mesh plate; 48, secondary discharge pipe; 49, first electric Magnetic valve; 410, buffer pad; 5, soil crushing mechanism; 51, gear; 52, rack; 53, guide column; 54, lower plate; 55, strip groove; 56, turntable; 57, eccentric column; 58, roller; 59, first synchronous wheel; 510, first synchronous belt; 511, first motor; 6, metering scale; 61, metering cylinder; 62, second solenoid valve; 7, dissolving cylinder; 8, stirring mechanism; 81, stirring frame; 82, second synchronous wheel; 83, active synchronous wheel; 84, second motor; 85, second synchronous belt; 86, tensioning wheel; 9, liquid collection platform; 91, operation panel; 92, liquid outlet. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-11 The present invention provides a technical solution: a soil nutrient deposition analysis device, comprising a shell 1, a feed box 11 is provided at the upper end of the shell 1, and a primary discharge port 12 is provided at the bottom of the feed box 11, a primary screening mesh plate 2 is provided inside the feed box 11, the primary screening mesh plate 2 is in an arc shape, and a plurality of partition plates 21 perpendicular to the axis direction of the primary screening mesh plate 2 are provided inside the primary screening mesh plate 2, and the partition plates 21 divide the primary screening mesh plate 2 into a plurality of crushing bins 22; A primary crushing assembly 3 is provided inside the primary screening mesh plate 2. The primary crushing assembly 3 includes a plurality of swing frames 31, and each crushing bin 22 is provided with a swing frame 31. Two adjacent swing frames 31 are connected by a coupling 32. A crushing roller 33 is rotatably installed on the inner side of the swing frame 31. A gap is provided between the crushing roller 33 and the inner arc surface of the primary screening mesh plate 2. Push plates 34 for leveling the soil are provided on both sides of the crushing roller 33. The push plates 34 are fixedly connected to both sides of the swing frame 31. Swing arms 35 are provided on both sides of the upper end of the swing frame 31. Fixed shafts 36 are provided on both sides of the swing arms 35. Two adjacent swing frames 31 are connected by the fixed shaft 36 and the coupling 32. A fixed plate 23 is provided on the upper end of the partition plate 21. The coupling 32 is fixedly installed on the fixed plate 23, and the coupling 32 is coaxial with the primary screening mesh plate 2.

[0020] Among them, multiple soil samples can be put into multiple crushing bins 22 at the same time, and soils of different layers in the same area or different areas in the same layer can be processed simultaneously, which is convenient for analyzing and comparing the subsequent test results. The primary crushing component 3 is used to crush the dried soil and roll larger pieces of soil into fine particles. During operation, multiple dried soil samples need to be placed in the crushing bins 22 respectively, and the soil in each crushing bin 22 is placed on both sides of the crushing roller 33. The two adjacent swing frames 31 are connected by the fixed shaft 36 on the swing frame 31 and the coupling 32. When one of the swing frames 31 swings through the fixed shaft 36, all the swing frames 31 will swing simultaneously. The swing of the swing frame 31 will drive the crushing roller 33 to swing. Since the fixed shaft 36 of the swing frame 31 is coaxial with the primary screening mesh plate 2, the reciprocating swing of the crushing roller 33 in the primary screening mesh plate 2 will crush the soil in the crushing bin 22, so that the larger soil is crushed into fine particles. The primary screening mesh plate 2 is used for primary filtering of the soil. The fine soil falls into the bottom of the feed box 11 through the through holes of the primary screening mesh plate 2, and the impurities will be filtered at the upper end of the primary screening mesh plate 2.

[0021] A secondary crushing assembly 4 is connected to the bottom of the feed box 11, and the secondary crushing assembly 4 includes a plurality of fixed cylinders 41, and each fixed cylinder 41 is correspondingly arranged with each crushing bin 22. A rotating shaft 42 is rotatably installed inside the shell 1, and the rotating shaft 42 passes through the middle of all the fixed cylinders 41 at the same time, and is rotatably connected with the fixed cylinders 41. A stirring plate 43 matching the fixed cylinder 41 is fixedly installed on the rotating shaft 42, and a plurality of through holes are evenly distributed on the stirring plate 43. A plurality of steel balls 44 are movably arranged inside the fixed cylinder 41, and the steel balls 44 are driven to move in the fixed cylinder 41 by the stirring plate 43. A secondary feed port 45 is arranged at the upper end of the fixed cylinder 41, and the secondary feed port 45 is connected with the primary discharge port 12. A secondary discharge port 46 is arranged at the bottom of the fixed cylinder 41, and a secondary screening mesh plate 47 is arranged at the top of the secondary discharge port 46. A first partition plate 14 is arranged inside the shell 1, and the fixed cylinder 41 is fixedly installed on the upper end of the first partition plate 14 through a bottom bracket, and a buffer pad 410 is arranged between the first partition plate 14 and the bottom bracket of the fixed cylinder 41.

[0022] Among them, the secondary crushing component 4 is used to further crush the fine particles of soil, so that it can filter out more tiny impurities, thereby obtaining purer soil, and can be quickly dissolved in water. The fine particles of soil enter the fixed cylinder 41 through the primary discharge port 12 at the bottom of the feed box 11 and the secondary feed port 45 at the upper end of the fixed cylinder 41. The fixed cylinder 41 has steel balls 44 inside for crushing the soil again. When the rotating shaft 42 rotates, the stirring plate 43 rotates inside the fixed cylinder 41 and stirs the steel balls 44 inside the fixed cylinder 41, so that the steel balls 44 collide with each other inside the fixed cylinder 41, and also collide with the soil at the same time, so that the fine particles The soil is decomposed into tiny particles, and the tiny particles of soil are filtered through the secondary screening mesh plate 47 at the bottom of the fixed cylinder 41 and enter the secondary discharge port 46, while the fine impurities are filtered at the upper end of the secondary screening mesh plate 47. In addition, when the stirring plate 43 stirs the steel balls 44, the steel balls 44 will also collide with the fixed cylinder 41 to cause it to vibrate, which can facilitate the tiny soil to be filtered through the secondary screening mesh plate 47 to the secondary discharge port 46, and the fixed cylinder 41 can also drive the primary discharge port 12 to vibrate, which can prevent soil accumulation. The buffer pad 410 arranged between the first partition plate 14 and the bottom bracket of the fixed cylinder 41 can reduce the impact of the fixed cylinder 41 on the first partition plate 14.

[0023] The primary crushing assembly 3 and the secondary crushing assembly 4 are both controlled and operated simultaneously by the soil crushing mechanism 5. The soil crushing mechanism 5 includes a gear 51 fixedly connected to one side of the swing frame 31, the gear 51 is meshed with a rack 52, guide columns 53 are provided at both ends of the rack 52, a U-shaped frame 13 is provided on one side of the upper end of the feed box 11, the rack 52 slides on the inner side of the U-shaped frame 13 through the guide columns 53, a lower plate 54 is provided at the lower end of the rack 52, and a strip-shaped through groove 55 distributed up and down is provided on the lower plate 54, a turntable 56 is rotatably installed on one side of the feed box 11, an eccentric column 57 is provided on the outer end surface of the turntable 56, a roller 58 is rotatably installed on the outer diameter of the eccentric column 57, the roller 58 is located inside the strip-shaped through groove 55, and is movably connected to the strip-shaped through groove 55, a first synchronous wheel 59 is coaxially provided on the inner side of the turntable 56, and a first synchronous wheel 59 is also provided at one end of the rotating shaft 42, the two first synchronous wheels 59 are connected through a first synchronous belt 510 for transmission, and the rotating shaft 42 is driven to rotate by a first motor 511.

[0024] Among them, the first motor 511 drives the rotating shaft 42 to rotate, so that the first synchronous wheel 59 at one end of the rotating shaft 42 rotates, and the first synchronous wheel 59 coaxial with the turntable 56 rotates through the first synchronous belt 510, so that the turntable 56 rotates at the same time, so that the eccentric column 57 and the roller 58 on the turntable 56 drive the lower plate 54 and the rack 52 to move through the bar-shaped through groove 55. Since the two sides of the rack 52 are slidably connected with the U-shaped frame 13, the rack 52 performs reciprocating translational motion on the inner side of the U-shaped frame 13, and the transmission is performed through the gear 51 so that the primary crushing assembly 3 performs a swinging motion inside the crushing bin 22, so that the crushing roller 33 can reciprocate and crush the soil. At the same time, the rotation of the rotating shaft 42 also drives the secondary crushing assembly 4 to operate to further crush the soil. Therefore, the soil crushing mechanism 5 can simultaneously drive the primary crushing assembly 3 and the secondary crushing assembly 4 to operate to crush the soil, saving energy.

[0025] A metering scale 6 is provided below the secondary crushing assembly 4, a metering cylinder 61 is provided at the upper end of the metering scale 6, the upper end of the metering cylinder 61 is connected to the secondary discharge port 46 of the secondary crushing assembly 4, a secondary discharge pipe 48 is provided at the bottom of the secondary discharge port 46, the secondary discharge pipe 48 is provided with a first solenoid valve 49, and a second solenoid valve 62 is provided at the bottom of the metering cylinder 61.

[0026] Among them, in the process of crushing the soil, the first solenoid valve 49 is in an open state and the second solenoid valve 62 is in a closed state. The filtered soil is directly discharged into the corresponding metering cylinder 61 through the secondary discharge port 46 and the secondary discharge pipe 48, and is weighed in real time by the metering scale 6. When a metering cylinder 61 reaches the set weight, the corresponding first solenoid valve 49 is closed, and the excess soil is stored inside the secondary discharge port 46, while the other first solenoid valves 49 continue to be opened until the soil in all metering cylinders 61 reaches the set weight and the first solenoid valves 49 are all closed.

[0027] The lower end of the metering cylinder 61 is connected to the dissolving cylinder 7, and the inside of the dissolving cylinder 7 is driven for stirring by a stirring mechanism 8. The stirring mechanism 8 includes a second partition 15 located inside the shell 1, and the dissolving cylinders 7 are fixed on the upper end of the second partition 15. A stirring frame 81 is provided inside the dissolving cylinder 7, and the stirring frame 81 is rotatably installed on the second partition 15. A second synchronous wheel 82 is provided at the bottom of the stirring frame 81, and the second synchronous wheel 82 is located below the second partition 15. The stirring mechanism 8 also includes an active synchronous wheel 83 driven to rotate by a second motor 84, and the active synchronous wheel 83 and all the second synchronous wheels 82 are connected by a second synchronous belt 85. A plurality of tensioning wheels 86 are also rotatably installed at the bottom of the second partition 15, and the tensioning wheel 86 squeezes the outer side of the second synchronous belt 85 toward the inside.

[0028] Among them, each dissolving cylinder 7 has the same volume of dissolving liquid inside, and the dissolving liquid is used to dissolve the soil, which is convenient for subsequent chemical reagent detection. When the metering cylinder 61 has collected the soil, all the second solenoid valves 62 are opened to allow the soil inside the metering cylinder 61 to enter the dissolving cylinder 7, and then stirred by the stirring mechanism 8 to achieve a better mixing effect of the soil and the dissolving liquid. During stirring, the active synchronous wheel 83 is driven to rotate by the second motor 84, and all the second synchronous wheels 82 are rotated at the same time by the second synchronous belt 85, so that the stirring frame 81 rotates and stirs the soil liquid inside the dissolving cylinder 7, so that the soil and the dissolving liquid can be mixed more evenly.

[0029] A liquid collection platform 9 is provided on one side of the housing 1 , an operation panel 91 is provided on the front side of the liquid collection platform 9 near the upper end, and a liquid outlet 92 matching the dissolving cylinder 7 is provided below the operation panel 91 .

[0030] The volume of the liquid is set through the operation panel 91, and the liquid inside the dissolving cylinder 7 can be taken out through the liquid outlet 92. The nutrients deposited in each layer of soil can be detected by adding corresponding chemical reagents to the dissolving liquid, and finally the detection results are analyzed and compared.

[0031] In addition, it should be explained that how to pump water into the dissolution cylinder 7 through a water pump, and how to pump out the mixed solution inside the dissolution cylinder 7 through the water pump and discharge it through the liquid outlet 92 are existing mature and common technologies, which are not shown in detail in the drawings.

[0032] A soil nutrient deposition analysis method comprises the following steps: S1. Drying: first remove the obvious impurities in each layer of soil, then remove the moisture from the soil to make it dry. The dry soil can facilitate further screening of impurities; S2, screening, crushing and screening the soil of each layer at the same time, placing the soil of each layer in a separate crushing bin 22, and crushing and screening the soil by the primary crushing component 3 and the secondary crushing component 4 respectively; S3, weighing, after screening, the soil of each layer falls into the corresponding metering cylinder 61 and is weighed by the metering scale 6, and when the soil in the metering cylinder 61 reaches the set weight, the first solenoid valve 49 is closed; S4, dissolution, when the soil in all the metering cylinders 61 reaches the set weight, the second solenoid valve 62 is opened, so that each layer of soil enters the corresponding dissolution cylinder 7 for dissolution, and is stirred evenly by the stirring mechanism 8; S5, liquid collection and testing, the volume of liquid collection is set through the operation panel 91, the liquid inside the dissolving cylinder 7 is taken out through the liquid outlet 92, and the corresponding chemical reagents are added to the dissolving liquid to detect the nutrients deposited in each layer of soil, and finally the test results are analyzed.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil nutrient deposition analysis device, comprising a housing (1), characterized in that: A feed box (11) is provided at the upper end of the shell (1), and a primary discharge port (12) is provided at the bottom of the feed box (11); a primary screening mesh plate (2) is provided inside the feed box (11), and a primary crushing assembly (3) is provided inside the primary screening mesh plate (2); The bottom of the feed box (11) is connected to a secondary crushing assembly (4), and the primary crushing assembly (3) and the secondary crushing assembly (4) are both controlled by a soil crushing mechanism (5) to operate simultaneously; A metering scale (6) is provided below the secondary crushing assembly (4), a metering cylinder (61) is provided at the upper end of the metering scale (6), and the upper end of the metering cylinder (61) is connected to the discharge port of the secondary crushing assembly (4); The lower end of the metering cylinder (61) is connected to a dissolving cylinder (7), and the interior of the dissolving cylinder (7) is driven for stirring by a stirring mechanism (8); The primary screening mesh plate (2) is in an arc shape, a plurality of partition plates (21) perpendicular to the axis direction of the primary screening mesh plate (2) are provided inside the primary screening mesh plate (2), the partition plates (21) divide the primary screening mesh plate (2) into a plurality of crushing bins (22), and the number of the metering cylinders (61) and the dissolving cylinders (7) matches the number of the crushing bins (22); A liquid collection platform (9) is provided on one side of the housing (1), an operation panel (91) is provided on the front side of the liquid collection platform (9) near the upper end, and a liquid outlet (92) matching the dissolving cylinder (7) is provided below the operation panel (91).

2. A soil nutrient deposition analysis device according to claim 1, characterized in that: The primary crushing assembly (3) comprises a plurality of swing frames (31), and each crushing bin (22) is provided with a swing frame (31), two adjacent swing frames (31) are connected via a coupling (32), a crushing roller (33) is rotatably mounted inside the swing frame (31), and a gap is provided between the crushing roller (33) and the inner arc surface of the primary screening mesh plate (2); Push plates (34) for leveling the soil are provided on both sides of the crushing roller (33); the push plates (34) are fixedly connected to both sides of the swing frame (31).

3. A soil nutrient deposition analysis device according to claim 1, characterized in that: The secondary crushing assembly (4) comprises a plurality of fixed cylinders (41), and each fixed cylinder (41) is arranged corresponding to each crushing bin (22); A rotating shaft (42) is rotatably mounted inside the housing (1), the rotating shaft (42) simultaneously passes through the middle of all the fixed cylinders (41) and is rotatably connected to the fixed cylinders (41), a stirring plate (43) matching the fixed cylinders (41) is fixedly mounted on the rotating shaft (42), and a plurality of through holes are evenly distributed on the stirring plate (43); A plurality of steel balls (44) are movably disposed inside the fixed cylinder (41), and the steel balls (44) are driven to move inside the fixed cylinder (41) by the stirring plate (43); A secondary material feed port (45) is provided at the upper end of the fixed cylinder (41), and the secondary material feed port (45) is connected to the primary material discharge port (12). A secondary material discharge port (46) is provided at the bottom of the fixed cylinder (41), and a secondary screening mesh plate (47) is provided at the top of the secondary material discharge port (46).

4. A soil nutrient deposition analysis device according to claim 3, characterized in that: The soil crushing mechanism (5) comprises a gear (51) fixedly connected to one side of the swing frame (31), the gear (51) being meshingly connected with a rack (52), and guide posts (53) are provided at both ends of the rack (52); A U-shaped frame (13) is provided on one side of the upper end of the feed box (11); the rack (52) slides inside the U-shaped frame (13) via a guide column (53); a lower plate (54) is provided at the lower end of the rack (52); and strip-shaped through grooves (55) are provided on the lower plate (54) and are distributed vertically. A turntable (56) is rotatably mounted on one side of the feed box (11); an eccentric column (57) is provided on the outer end surface of the turntable (56); a roller (58) is rotatably mounted on the outer diameter of the eccentric column (57); the roller (58) is located inside the strip-shaped through groove (55) and is movably connected to the strip-shaped through groove (55); A first synchronous wheel (59) is coaxially disposed inside the rotating disk (56), and a first synchronous wheel (59) is also disposed at one end of the rotating shaft (42), and the two first synchronous wheels (59) are connected in transmission via a first synchronous belt (510); The rotating shaft (42) is driven to rotate by a first motor (511).

5. The soil nutrient deposition analysis device according to claim 1, characterized in that: The stirring mechanism (8) comprises a second partition (15) located inside the shell (1), and the dissolving cylinder (7) is fixed to the upper end of the second partition (15), a stirring frame (81) is provided inside the dissolving cylinder (7), and the stirring frame (81) is rotatably mounted on the second partition (15), and a second synchronous wheel (82) is provided at the bottom of the stirring frame (81), and the second synchronous wheel (82) is located below the second partition (15); The stirring mechanism (8) further comprises an active synchronous wheel (83) driven to rotate by a second motor (84); the active synchronous wheel (83) and all the second synchronous wheels (82) are connected in transmission via a second synchronous belt (85).

6. A soil nutrient deposition analysis device according to claim 2, characterized in that: Swing arms (35) are provided on both sides of the upper end of the swing frame (31), and fixed shafts (36) are provided on both sides of the swing arm (35). Two adjacent swing frames (31) are connected via the fixed shafts (36) and the coupling (32). A fixed plate (23) is provided on the upper end of each of the partition plates (21). The coupling (32) is fixedly mounted on the fixed plate (23), and the coupling (32) is coaxial with the primary screening mesh plate (2).

7. A soil nutrient deposition analysis device according to claim 3, characterized in that: A secondary discharge pipe (48) is provided at the bottom of the secondary discharge port (46), and the secondary discharge pipe (48) is provided with a first solenoid valve (49); A second solenoid valve (62) is provided at the bottom of the metering cylinder (61).

8. The soil nutrient deposition analysis device according to claim 3, characterized in that: A first partition (14) is provided inside the shell (1), the fixed cylinder (41) is fixedly mounted on the upper end of the first partition (14) via a bottom bracket, and a buffer pad (410) is provided between the first partition (14) and the bottom bracket of the fixed cylinder (41).

9. The soil nutrient deposition analysis device according to claim 5, characterized in that: A plurality of tension wheels (86) are rotatably mounted on the bottom of the second partition plate (15), and the tension wheels (86) press the outer side of the second synchronous belt (85) toward the inner side.

10. A soil nutrient deposition analysis method, used in conjunction with a soil nutrient deposition analysis device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Drying: first remove the obvious impurities in each layer of soil, then remove the moisture from the soil to make it dry. The dry soil can facilitate further screening of impurities; S2, screening, crushing and screening the soil of each layer at the same time, placing the soil of each layer in a separate crushing bin (22), and crushing and screening the soil through the primary crushing component (3) and the secondary crushing component (4); S3, weighing, the soil of each layer falls into the corresponding metering cylinder (61) after being screened and is weighed by a metering scale (6), and the first solenoid valve (49) is closed when the soil in the metering cylinder (61) reaches a set weight; S4, dissolution, when the soil in all the metering cylinders (61) reaches the set weight, the second solenoid valve (62) is opened, so that each layer of soil enters the corresponding dissolution cylinder (7) for dissolution, and is stirred evenly by the stirring mechanism (8); S5, liquid collection and testing, the volume of the liquid to be collected is set through the operation panel (91), the liquid inside the dissolving cylinder (7) is taken out through the liquid outlet (92), and the corresponding chemical reagent is added to the dissolving liquid to detect the nutrients deposited in each layer of soil, and finally the test results are analyzed.

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