Test soil sample processing and quantifying device

Abstract

The invention discloses a test soil sample treating and quantifying device, and relates to the technical field of test soil treatment.The upper end of a shell is provided with a feeding port, a grinding module is arranged below the feeding port and used for grinding passing soil, and a stirring and shearing module is arranged close to a screening module; the stirring and shearing module is used for stirring and shearing the ground soil falling onto the screening module, the stirring and shearing module makes contact with the screening module and rotates to promote screening of the crushed soil particles, the screening module is used for enabling the soil particles with the particle size smaller than the pore diameter of the screening module to pass through, and the impurity removing module is used for receiving the screened soil particles; and the weighing and conveying module is used for receiving the soil for the test after the weeding and wood chips are removed, quantitatively weighing the soil for the test and then guiding out the soil for the test. According to the device, soil grinding and smashing, impurity separation and quantitative conveying can be achieved, and the soil pretreatment efficiency and the soil sample filling efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of test soil processing, in particular to a test soil sample processing and quantification device. Background Art

[0002] The pretreatment of soil samples refers to the process of removing debris (grass roots, wood chips and stones, etc.), air-drying, grinding, sieving and preserving soil samples collected in the field. The physical and chemical properties of the soil that are part of the determination of basic soil properties require fresh samples for determination, such as soil microorganisms, volatile and semi-volatile organic matter, redox potential, soil bulk density, soil water content, and unstable indicators such as ammonium nitrogen, nitrate nitrogen, and low-valent iron. The rest of the soil needs to be air-dried and preserved as soon as possible to ensure the stability of the soil properties. The physical and chemical properties of the soil such as pH, organic matter content, nutrient content, and texture require the use of air-dried soil of different particle sizes. In addition, a large amount of pre-treated and air-dried soil is required in simulation experiments such as pot experiments.

[0003] The pretreatment process of soil samples usually requires manual processing. The soil needs to be ground manually after air drying. However, after grinding, farmland soil often contains weeds, wood chips and other debris, which need to be removed manually. As a result, the pretreatment process is often time-consuming, labor-intensive, and there are problems such as dust generation. The working conditions of soil pretreatment urgently need to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a test soil sample processing and quantification device to solve the problems existing in the above-mentioned prior art, realize the grinding and crushing of soil, separation of debris and quantitative transmission, and improve the soil pretreatment efficiency and soil sample filling efficiency.

[0005] To achieve the above object, the present invention provides the following solutions: The present invention provides a test soil sample processing and quantification device, comprising a shell, a grinding module, a stirring and shearing module, a screening module and a debris removal module installed in the shell and arranged in sequence from top to bottom, and a weighing and transmission module installed at the bottom of the shell, wherein a feed port is provided at the upper end of the shell, the grinding module is arranged below the feed port and is used to grind the soil passing through, the stirring and shearing module is arranged close to the screening module, and the stirring and shearing module is used to stir and shear the soil that is ground and falls onto the screening module, the stirring and shearing module also promotes the screening of the crushed soil particles by rotating in contact with the screening module, the screening module is used to allow soil particles with a particle size smaller than the aperture of the screening module to pass through, the debris removal module is used to receive the sieved soil particles and remove the wood chips mixed in the soil particles, the weighing and transmission module is used to receive the test soil after the wood chips are removed, and weigh the treated soil and then export it, or export soil of required mass.

[0006] Preferably, the grinding module includes a grinding motor, an active roller shaft, a driven roller shaft and a telescopic component, the active roller shaft and the driven roller shaft are arranged opposite to each other, and the active roller shaft and the driven roller shaft are parallel to each other, the grinding motor is respectively connected to the active roller shaft and the driven roller shaft, and can respectively drive the active roller shaft and the driven roller shaft to rotate, the telescopic component is connected to the driven roller shaft, and can drive the driven roller shaft to move in a direction close to or away from the active roller shaft, and the active roller shaft and the driven roller shaft are used to pass and grind soil.

[0007] Preferably, a primary screening module is also provided between the grinding module and the stirring and shearing module, the primary screening module comprising a primary screening motor, a primary screening drum and a primary screening guide plate, the primary screening guide plate being installed in the outer shell, and the upper end of the primary screening guide plate being arranged close to the outlet of the grinding module, the lower end of the primary screening guide plate extending into the primary screening drum and being arranged close to the middle of the first end of the primary screening drum, the primary screening drum being rotatably installed in the outer shell, and the middle of the second end of the primary screening drum being connected to the output shaft of the primary screening motor, the second end of the primary screening drum being provided with a discharge port connected to the outside of the outer shell, the primary screening motor being able to drive the primary screening drum to rotate, materials with a particle size larger than the aperture of the primary screening drum being able to be discharged through the discharge port, materials with a particle size smaller than the aperture of the primary screening drum being able to fall into the screening module through the sieve holes of the primary screening drum.

[0008] Preferably, the screening module is a multi-stage arc screen, which includes a first arc screen and a second arc screen, the first arc screen is located below the outlet of the grinding module, the first arc screen and the second arc screen are both inclined, and the upper end of the first arc screen is clamped on the inner wall of the outer shell, the lower end of the first arc screen is connected to the lower end of the second arc screen, the upper end of the second arc screen is clamped on the inner wall of the outer shell, and the aperture of the first arc screen is larger than the aperture of the second arc screen.

[0009] Preferably, the stirring and shearing module includes two groups of stirring and shearing units with the same structure, one group of the stirring and shearing units is located above the first curved screen, and the other group of the stirring and shearing units is located above the second curved screen. When the two groups of the stirring and shearing units rotate, they can simultaneously act on the soil particles passing between the two groups of the stirring and shearing units, and stir and shear the soil particles. When the stirring and shearing unit located above the first curved screen rotates, it can drive the soil particles on the first curved screen to move toward the second curved screen.

[0010] Preferably, the stirring and shearing unit includes a stirring and shearing motor, a gear set, a rotating shaft, a plurality of rotating blades, a plurality of stirring and shearing elements and a plurality of screening brushes, the stirring and shearing motor, the gear set and the rotating shaft are connected in sequence, the plurality of rotating blades are evenly installed on the outer circumference of the rotating shaft, and the plurality of rotating blades, the plurality of stirring and shearing elements correspond to the plurality of screening brushes one by one, the stirring and shearing element is installed at the end of the rotating blade away from the rotating shaft, and the screening brush is installed at the end of the stirring and shearing element away from the rotating blade; the two rotating shafts are staggered in the horizontal and vertical directions, and when the two rotating shafts drive the corresponding rotating blades to rotate, the two rotating blades close to each other located on different rotating shafts can drive the stirring and shearing element to stir and shear the soil, and when the rotating blade located above the first arc-shaped screen rotates until the corresponding screening brush contacts the first arc-shaped screen, the screening brush can push the soil particles to move toward the second arc-shaped screen.

[0011] Preferably, the debris removal module includes a negative pressure adsorption component, a debris removal motor, a track, an electrostatic generating component, a plurality of transverse electrostatic adsorption rods and a plurality of longitudinal electrostatic adsorption lines, the negative pressure adsorption component is installed on one side of the shell and can be connected to the inside of the shell, the track is a runway-shaped track, and the track includes a first section and a second section that are smoothly connected, the electrostatic generating component is connected to the track, and can make the first section statically charged and the second section non-statically charged, a plurality of the transverse electrostatic adsorption rods are installed on the track and arranged in sequence along the extension direction of the track, and the transverse electrostatic adsorption rods can be connected to the track, a plurality of the longitudinal electrostatic adsorption lines correspond one-to-one to a plurality of the transverse electrostatic adsorption rods, and a plurality of the longitudinal electrostatic adsorption lines form a runway shape and are sleeved on the outer periphery of the track, and the outer side of the longitudinal electrostatic adsorption line is used to receive soil particles , the adjacent longitudinal electrostatic adsorption lines are connected by insulating fixings but are not conductive, the transverse electrostatic adsorption rod is located in the inner circle of multiple longitudinal electrostatic adsorption lines and is conductive with the corresponding longitudinal electrostatic adsorption lines, the debris removal motor can drive each of the transverse electrostatic adsorption rods to move around the track, and when the transverse electrostatic adsorption rod is located in the first section, it can electrostatically adsorb grass and wood chips on the corresponding longitudinal electrostatic adsorption line, and when the transverse electrostatic adsorption rod is located in the second section, it no longer adsorbs grass and wood chips on the corresponding longitudinal electrostatic adsorption line, and enables the negative pressure adsorption component to discharge the grass and wood chips, the negative pressure adsorption component includes a debris capture part and a negative pressure suction pipe, one end of the negative pressure suction pipe is arranged close to the second section, and the other end of the negative pressure suction pipe is connected to the debris capture part, the debris capture part is used to provide negative pressure wind and discharge grass and wood chips through the negative pressure suction pipe.

[0012] Preferably, the first section is a first positive charge track, the second section is an insulating track, and the static electricity generating component is connected to the first positive charge track.

[0013] Preferably, the first section is a second positive charge track, the second section is a negative charge track, the positive electrode of the static electricity generating component is connected to the second positive charge track, and the negative electrode of the static electricity generating component is connected to the negative charge track.

[0014] Preferably, the weighing and transmission module includes a weighing sensor, a hopper, a bracket, a transmission motor, a screw conveying reducer and a screw conveying pipe. The hopper is installed at the lower end of the shell and is connected to the inside of the shell. The bracket is installed on the outer periphery of the hopper. The weighing sensor is installed at the upper end of the hopper and can allow soil particles falling from the shell to enter the hopper after weighing the soil particles. The lower end of the hopper is connected to the lower end of the screw conveying pipe, and the upper end of the screw conveying pipe extends obliquely upward and is provided with a soil outlet. The transmission motor is connected to the screw conveying reducer, and the screw conveying reducer is connected to the lower end of the screw in the screw conveying pipe.

[0015] Compared with the prior art, the present invention has achieved the following technical effects: The experimental soil sample processing and quantitative device provided by the present invention has a feed port at the upper end of the shell to facilitate the feeding of the soil to be processed into the shell, a grinding module is arranged below the feed port and is used to grind the soil passing through, thereby breaking up the agglomerated soil to form soil particles, which is convenient for subsequent processing, a stirring and shearing module is arranged close to the screening module, and the stirring and shearing module is used to shear the soil that has been ground and falls onto the screening module, so that the soil particles are further crushed and mixed, and fall into the screening module, and the screening module is provided with sieve holes, thereby allowing soil particles with a particle size smaller than the sieve hole to pass through and fall onto the debris removal module, while the particles with a particle size larger than the sieve hole that remain in the screening module are removed. The dirt removed by the sieving module is used to receive the soil particles screened by the sieving module, and to remove the mixed wood chips in the soil particles, thereby separating the wood chips from the soil particles, so as to obtain qualified soil for scientific experiments. The weighing and transmission module is used to receive the experimental soil after the wood chips are removed, and to weigh the experimental soil and then export it, so as to achieve quantitative transmission of the soil. At the same time, the processed soil does not need to be transferred out, but can be quantitatively transferred to the required test container through the weighing and transmission module, which further reduces the experimental workload and improves the soil sample processing efficiency. The above design also improves the working environment of scientific researchers, makes it convenient and quick to use, and reduces the workload of staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a front view of the test soil sample processing and quantification device of the present invention; Figure 2 It is a side view of the test soil sample processing and quantification device of the present invention; Figure 3 It is a schematic diagram of the test soil sample processing and quantification device of the present invention when it is working; Figure 4 is a top view of the grinding module in the present invention; Figure 5 It is a front view of the stirring and shearing module and the screening module in the present invention; Figure 6 It is a side view of the stirring and shearing module and the screening module in the present invention; Figure 7 A top view of the stirring and shearing module and the screening module in the present invention; Figure 8 This is a front view of the debris removal module of the present invention; Fig. 9 A top view of the debris removal module of the present invention; Fig.10 It is a front view when the track in the present invention includes a conductor track and an insulating track; Fig.11 It is a front view when the track in the present invention includes a positive charge track and a negative charge track; Fig.12 It is a schematic diagram of the connection between the transverse electrostatic adsorption rod and the longitudinal electrostatic adsorption line in the present invention; In the figure: 1-grinding module, 11-telescopic assembly, 12-active roller shaft, 13-driven roller shaft, 14-bearing; 2-primary screening module, 21-primary screening guide plate, 22-primary screening drum, 23-discharging port, 24-primary screening motor; 3-stirring and shearing module, 31-fixing bolt, 32-rotating shaft, 33-rotating blade, 34-stirring and shearing element, 35-stirring and shearing motor, 36-reduction gear, 37-driving gear, 38-screening brush; 4-screening module, 41-first arc screen, 42-second arc screen, 43-card slot; 5-debris removal module, 51-second section, 511-insulating track, 512-first positive electrode -charge track, 513-negative charge track, 514-second positive charge track, 52-first section, 53-transverse electrostatic adsorption rod, 54-longitudinal electrostatic adsorption line, 55-static generating assembly, 56-debris removal motor, 57-gear, 58-insulating fixing piece; 6-weighing transmission module, 61-weighing sensor, 62-hopper, 63-bracket, 64-transmission motor, 65-screw conveying reducer, 66-screw conveying pipe, 67-soil outlet, 7-feeding port, 8-negative pressure adsorption assembly, 81-negative pressure suction port, 82-negative pressure suction pipe, 83-debris capturing part, 821-negative pressure regulating member, 822-debris storage box; 9-housing. 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] The purpose of the present invention is to provide a test soil sample processing and quantification device to solve the problems existing in the prior art, realize the grinding and crushing of soil, separation of debris and quantitative transmission, and improve the soil pretreatment efficiency and soil sample filling efficiency.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1-Figure 12As shown, this embodiment provides a test soil sample processing and quantification device, including a shell 9, a grinding module 1, a stirring and shearing module 3, a screening module 4 and a debris removal module 5 installed in the shell 9 and arranged in sequence from top to bottom, and a weighing and transmission module 6 installed at the bottom of the shell 9. The upper end of the shell 9 is provided with a feed port 7 to facilitate the feeding of the soil to be processed into the shell 9. The grinding module 1 is arranged below the feed port 7 and is used to grind the soil passing through, thereby crushing the agglomerated soil to form soil particles for subsequent processing. The stirring and shearing module 3 is arranged close to the screening module 4, and the stirring and shearing module 3 is used to shear the soil that has been ground and falls onto the screening module 4, so that the soil particles are further crushed and mixed, and fall into the screening module 4. The screening module 4 has sieve holes, thereby allowing soil particles with a particle size smaller than the sieve hole to pass through. , and falls onto the debris removal module 5, while the material with a particle size larger than the sieve hole size remaining in the screening module 4 is discharged to the outside of the shell 9. The debris removal module 5 is used to receive the soil particles screened by the screening module 4, and remove the mixed wood chips in the soil particles, thereby realizing the separation of wood chips and soil particles, so as to obtain qualified soil for scientific experiments. The weighing and transmission module 6 is used to receive the experimental soil after the wood chips are removed, and weigh the treated soil and then export it, or export the soil of the required mass to realize the quantitative transmission of the soil. At the same time, the treated soil does not need to be transferred out, and can be quantitatively transferred to the required test container through the weighing and transmission module 6, which further reduces the experimental workload and improves the soil sample processing efficiency. Through the above design, the working environment of scientific researchers is also improved, and it is convenient and quick to use, reducing the workload of staff. Furthermore, the soil in the test soil sample processing and quantification device provided in this embodiment can be automatically weighed by the control system, thereby achieving the quantitative extraction of the required mass of soil (such as 1 kg, 2 kg or 3 kg), and then replacing the test container for packaging, and continuous quantitative packaging can be achieved without the need for a scale for weighing.

[0022] Specifically, the grinding module 1 includes a grinding motor, an active roller shaft 12, a driven roller shaft 13 and a telescopic component 11, and the telescopic component 11 is preferably a hydraulic element. The active roller shaft 12 and the driven roller shaft 13 are arranged opposite to each other, and the active roller shaft 12 and the driven roller shaft 13 are parallel to each other. The ends of the active roller shaft 12 and the ends of the driven roller shaft 13 are provided with bearings 14 to ensure stable rotation. The grinding motor is connected to the active roller shaft 12 and the driven roller shaft 13 respectively, and can drive the active roller shaft 12 and the driven roller shaft 13 respectively. 3 rotates, and the active roller shaft 12 and the driven roller shaft 13 can rotate in the direction of approaching each other, so as to crush and grind the soil entering between the active roller shaft 12 and the driven roller shaft 13; the telescopic assembly 11 is connected to the driven roller shaft 13, and can drive the driven roller shaft 13 to move in the direction of approaching or moving away from the active roller shaft 12, so as to adjust the distance between the active roller shaft 12 and the driven roller shaft 13, so as to ensure the pressure applied to the soil by the active roller shaft 12 and the driven roller shaft 13, so as to ensure physical crushing.

[0023] A curved feed channel may be provided above the grinding module 1 and below the feed port 7. The feed channel is bent in a three-fold shape, thereby reducing the impact of grinding soil dust and preventing soil particles from breaking and jumping out.

[0024] A primary screening module 2 is also provided between the grinding module 1 and the stirring and shearing module 3. The primary screening module 2 includes a primary screening motor 24, a primary screening drum 22 and a primary screening guide plate 21. The primary screening guide plate 21 is obliquely installed in the housing 9, and the upper end of the primary screening guide plate 21 is arranged close to the outlet of the grinding module 1 and is used to receive the ground soil particles. The lower end of the primary screening guide plate 21 extends into the primary screening drum 22 and is arranged close to the middle of the first end of the primary screening drum 22, thereby introducing the ground soil particles into the primary screening drum 22. The primary screening drum 22 is rotatably installed in the housing 9, and the middle of the second end of the primary screening drum 22 is connected to the output shaft of the primary screening motor 24, thereby passing The primary screening motor 24 drives the primary screening drum 22 to rotate, and the rotation of the primary screening drum 22 enables the materials with a particle size smaller than the aperture of the primary screening drum 22 to fall down. The second end of the primary screening drum 22 is provided with a discharge port 23 connected to the outside of the shell 9, and the inner wall of the primary screening drum 22 is provided with a guide plate. As the primary screening drum 22 rotates, stones and other debris in the soil with a particle size larger than the aperture of the primary screening drum 22 can move spirally upward under the action of the guide plate until they reach the discharge port 23 and are discharged through the discharge port 23. Materials with a particle size smaller than the aperture of the primary screening drum 22 can fall into the screening module 4 through the sieve holes of the primary screening drum 22, thereby realizing the primary separation of debris in the soil.

[0025] The screening module 4 is a multi-stage arc screen, which includes a first arc screen 41 and a second arc screen 42. The technicians in this field can also select the specific number of arc screens according to actual needs. The first arc screen 41 is located directly below the outlet of the primary screening drum 22. The first arc screen 41 and the second arc screen 42 are both inclined, and the upper end of the first arc screen 41 is clamped to the inner wall of the shell 9, the lower end of the first arc screen 41 is connected to the lower end of the second arc screen 42, and the upper end of the second arc screen 42 is clamped to the shell The inner wall of 9 is preferably connected by a block and a slot 43, and then the slot 43 is pulled out by the block to insert and replace the screens with different mesh diameters. The aperture of the first arc-shaped screen 41 is larger than the aperture of the second arc-shaped screen 42, so that the soil particles first enter the first arc-shaped screen 41 with a larger aperture and are screened by the first arc-shaped screen 41. With the action of the stirring and shearing module 3, the soil particles enter the second arc-shaped screen 42 with a smaller aperture for further screening, so that the soil particles fall by the action of gravity, thereby improving the screening effect and screening efficiency.

[0026] The stirring and shearing module 3 includes two groups of stirring and shearing units with the same structure, one group of stirring and shearing units is located above the first arc-shaped screen 41, and the other group of stirring and shearing units is located above the second arc-shaped screen 42, so that the two groups of stirring and shearing units can act on the soil particles on the first arc-shaped screen 41 and the second arc-shaped screen 42 respectively. When the two groups of stirring and shearing units rotate, they can simultaneously act on the soil particles passing through the two groups of stirring and shearing units, and stir and shear the soil particles, thereby achieving further shear mixing after the soil particles are crushed, so that the particle size of the soil particles is further uniform. When the stirring and shearing unit located above the first arc-shaped screen 41 rotates, it can drive the soil particles on the first arc-shaped screen 41 to move toward the second arc-shaped screen 42, thereby first screening the soil particles through the first arc-shaped screen 41 with a large aperture, and then further screening the soil particles through the second arc-shaped screen 42. At the same time, it can also promote the soil to pass through each arc-shaped screen.

[0027] In this embodiment, the stirring and shearing unit is used in combination with the arc screen, so that the soil is ground and mixed more fully, and the sample preparation error caused by soil heterogeneity is reduced.

[0028] The stirring and shearing unit includes a stirring and shearing motor 35, a gear set, a rotating shaft 32, a plurality of rotating blades 33, a plurality of stirring and shearing elements 34 and a plurality of screening brushes 38. The stirring and shearing motor 35, the gear set and the rotating shaft 32 are connected in sequence, and then the stirring and shearing motor 35 provides a driving force, and then after the gear set changes speed, the driving force is transmitted to the rotating shaft 32 to realize the rotation of the rotating shaft 32. The plurality of rotating blades 33 are evenly installed on the outer periphery of the rotating shaft 32 and can rotate with the rotation of the rotating shaft 32. The plurality of rotating blades 33, the plurality of stirring and shearing elements 34 correspond to the plurality of screening brushes 38 one by one. The stirring and shearing element 34 is installed at one end of the rotating blade 33 away from the rotating shaft 32, and then as the rotating shaft 32 drives the rotating blade 33 to rotate, the soil particles are sheared by the stirring and shearing element 34. The screening brush 38 is installed at one end of the stirring and shearing element 34 away from the rotating blade 33. The soil particles can be pushed by moving the screening brush 38 on the first curved screen 41 or the second curved screen 42; the two rotating shafts 32 are staggered in the horizontal and vertical directions, and the distance between the two rotating shafts 32 in the horizontal direction is greater than the length of the rotating blade 33 and less than twice the length of the rotating blade 33; the distance between the two rotating shafts 32 in the vertical direction is less than the length of the rotating blade 33; and when the two rotating shafts 32 rotate, the rotating blades 33 do not interfere with each other; when the two rotating shafts 32 drive the corresponding rotating blades 33 to rotate, the two rotating blades 33 close to each other on different rotating shafts 32 can drive the stirring and shearing element 34 to stir and shear the soil; when the rotating blade 33 above the first curved screen 41 rotates until the corresponding screening brush 38 contacts the first curved screen 41, the screening brush 38 can push the soil particles to move toward the second curved screen 42. The rotating shaft 32 is connected to the stirring and shearing element 34 via a fixing bolt 31 , the stirring and shearing motor 35 is connected to the reduction gear 36 in the gear set, and the reduction gear 36 is connected to the driving gear 37 in the gear set, thereby finally realizing the rotation of the two rotating shafts 32 .

[0029] The debris removal module 5 includes a negative pressure adsorption component 8, a debris removal motor 56, a track, an electrostatic generating component 55, a plurality of transverse electrostatic adsorption rods 53 and a plurality of longitudinal electrostatic adsorption lines 54. The debris removal module 5 is tilted, and the negative pressure adsorption component 8 is installed on one side of the shell 9 and can be connected to the inside of the shell 9. The track is a runway-shaped track, and the track includes a first section 52 and a second section 51 that are smoothly connected to ensure the smooth movement of the transverse electrostatic adsorption rod 53 on the track, wherein the second section 51 is located at a higher end, and the electrostatic generating component 55 is connected to the track, and can make the first section 52 have static electricity and the second section 51 not have static electricity, thereby making the first section 52 have static electricity and the second section 51 have static electricity. The first section 52 can electrostatically adsorb the wood chips in the soil, while the second section 51 cannot adsorb the wood chips in the soil. A plurality of transverse electrostatic adsorption rods 53 are installed on the track and are arranged in sequence along the extension direction of the track. The transverse electrostatic adsorption rods 53 can be connected to the track, and then as the transverse electrostatic adsorption rods 53 move, the transverse electrostatic adsorption rods 53 are charged with or without static electricity. A plurality of longitudinal electrostatic adsorption lines 54 correspond to the plurality of transverse electrostatic adsorption rods 53 one by one, and the plurality of longitudinal electrostatic adsorption lines 54 are surrounded in a runway shape and are sleeved on the outer periphery of the track. The plurality of longitudinal electrostatic adsorption lines 54 cooperate with the plurality of transverse electrostatic adsorption rods 53 to form an electrostatic adsorption network. The longitudinal electrostatic adsorption lines 54 The outer side is used to receive soil particles, and adjacent longitudinal electrostatic adsorption lines 54 are connected by insulating fixings 58 but are not conductive. The transverse electrostatic adsorption rod 53 is located in the inner circle of multiple longitudinal electrostatic adsorption lines 54 and is conductive with the corresponding longitudinal electrostatic adsorption lines 54, so that the conductive conditions of each longitudinal electrostatic adsorption line 54 are independent of each other. The debris removal motor 56 can drive each transverse electrostatic adsorption rod 53 to move around the track, and the transverse electrostatic adsorption rod 53 is electrostatically charged when it is located in the first section 52, and then electrostatically absorbs the grass and wood chips on the corresponding longitudinal electrostatic adsorption line 54 to prevent the grass and wood chips from falling out. The transverse electrostatic adsorption rod 53 is not electrostatically charged when it is located in the second section 51. Then, the grass and wood chips on the corresponding longitudinal electrostatic adsorption line 54 are no longer adsorbed. At the same time, the negative pressure adsorption component 8 negatively attracts the grass and wood chips. Since the grass and wood chips are light, the grass and wood chips are discharged and separated from the soil. The negative pressure adsorption component 8 includes a debris capture part 83 and a negative pressure suction pipe 82. One end of the negative pressure suction pipe 82 is arranged near the second section 51, so that negative pressure attraction can be provided near the second section 51. The other end of the negative pressure suction pipe 82 is connected to the debris capture part 83, so that the grass and wood chips adsorbed by negative pressure are sucked into the debris capture part 83 through the negative pressure suction port 81 of the negative pressure suction pipe 82. The debris capture part 83 is used to provide negative pressure wind. The debris capture part 83 includes a negative pressure adjustment part 821 and a debris storage box 822.

[0030] Two gears 57 are also provided in the track. The two gears 57 are respectively arranged at the two ends of the track and are evenly meshed with the inner ring of the horizontal electrostatic adsorption rod 53. At the same time, one of the gears 57 is connected to the debris removal motor 56 and rotates under the drive of the debris removal motor 56, finally realizing the movement of each horizontal electrostatic adsorption rod 53.

[0031] As an embodiment, the first section 52 is a first positive charge track 512, the second section 51 is an insulating track 511, and the static electricity generating component 55 is connected to the first positive charge track 512, thereby ensuring that the first positive charge track 512 is statically charged and the insulating track 511 is not statically charged.

[0032] As another embodiment, the first section 52 is the second positive charge track 514, the second section 51 is the negative charge track 513, the positive pole of the electrostatic generating component 55 is connected to the second positive charge track 514, and the negative pole of the electrostatic generating component 55 is connected to the negative charge track 513, so that the second positive charge track 514 can quickly absorb light debris such as negatively charged wood chips in the soil, while at the negative charge track 513, repulsion occurs due to the same electrical properties, so that the adsorbed light debris such as negatively charged wood chips is quickly separated and sucked away by the negative pressure suction pipe 82.

[0033] This embodiment realizes automatic switching of static electricity by providing a movable transverse electrostatic adsorption rod 53, which cooperates with the sliding contact between the rod and the track, and captures the adsorbed wood chips through the negative pressure adsorption component 8. The falling soil particles move simultaneously with the transverse electrostatic adsorption rod 53, effectively improving the efficiency of capturing wood chips in the soil.

[0034] The weighing and transmission module 6 includes a weighing sensor 61, a hopper 62, a bracket 63, a transmission motor 64, a screw conveying reducer 65 and a screw conveying pipe 66. The hopper 62 is installed at the lower end of the shell 9 and is connected to the inside of the shell 9 to receive the processed soil particles. The bracket 63 is installed on the outer periphery of the hopper 62 to play a supporting role. The weighing sensor 61 is installed at the upper end of the hopper 62 and can make the soil particles enter the hopper 62 after weighing the soil particles falling from the shell 9, so as to achieve quantitative transportation. The lower end of the hopper 62 is connected to the lower end of the screw conveying pipe 66, and the upper end of the screw conveying pipe 66 extends obliquely upward and is provided with a soil outlet 67. The transmission motor 64 is connected to the screw conveying reducer 65, and the screw conveying reducer 65 is connected to the lower end of the screw in the screw conveying pipe 66. The driving force is provided by the transmission motor 64. After the speed of the screw conveying reducer 65 changes, the screw in the screw conveying pipe 66 is driven to rotate. As the screw rotates, the soil is driven to move to the soil outlet 67. Among them, the angle of the screw conveying tube 66 and the conveying speed of the bare screw can be adjusted, and the transmission motor 64 and the weighing sensor 61 are electrically connected to the control system, thereby controlling the start and stop of the screw and setting the rate and quality of transmitting the soil sample.

[0035] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A test soil sample processing and quantification device, characterized in that: The invention comprises an outer shell, a grinding module, a stirring and shearing module, a screening module and a debris removal module which are installed in the outer shell and arranged in sequence from top to bottom, and a weighing and transmission module which is installed at the bottom of the outer shell. A feed port is provided at the upper end of the outer shell. The grinding module is arranged below the feed port and is used for grinding the soil passing through. The stirring and shearing module is arranged close to the screening module and is used for stirring and shearing the soil which is ground and falls onto the screening module. The stirring and shearing module also promotes the screening of the crushed soil particles by rotating in contact with the screening module. The screening module is used for passing soil particles with a particle size smaller than the aperture of the screening module. The debris removal module is used for receiving the sieved soil particles and removing the wood chips mixed in the soil particles. The weighing and transmission module is used for receiving the test soil after the wood chips are removed and exporting the treated soil after weighing, or exporting soil of required mass.

2. The test soil sample processing and quantification device according to claim 1, characterized in that: The grinding module includes a grinding motor, an active roller shaft, a driven roller shaft and a telescopic component. The active roller shaft and the driven roller shaft are arranged opposite to each other and are parallel to each other. The grinding motor is respectively connected to the active roller shaft and the driven roller shaft and can respectively drive the active roller shaft and the driven roller shaft to rotate. The telescopic component is connected to the driven roller shaft and can drive the driven roller shaft to move in a direction close to or away from the active roller shaft. The active roller shaft and the driven roller shaft are used to pass and grind soil.

3. The test soil sample processing and quantification device according to claim 1, characterized in that: A primary screening module is also provided between the grinding module and the stirring and shearing module, and the primary screening module includes a primary screening motor, a primary screening drum and a primary screening guide plate, the primary screening guide plate is installed in the outer shell, and the upper end of the primary screening guide plate is arranged near the outlet of the grinding module, the lower end of the primary screening guide plate extends into the primary screening drum and is arranged near the middle of the first end of the primary screening drum, the primary screening drum is rotatably installed in the outer shell, and the middle of the second end of the primary screening drum is connected to the output shaft of the primary screening motor, the second end of the primary screening drum is provided with a discharge port connected to the outside of the outer shell, the primary screening motor can drive the primary screening drum to rotate, materials with a particle size larger than the aperture of the primary screening drum can be discharged through the discharge port, and materials with a particle size smaller than the aperture of the primary screening drum can fall into the screening module through the sieve holes of the primary screening drum.

4. The test soil sample processing and quantification device according to claim 1, characterized in that: The screening module is a multi-stage arc screen, which includes a first arc screen and a second arc screen. The first arc screen is located below the outlet of the grinding module. The first arc screen and the second arc screen are both inclined, and the upper end of the first arc screen is clamped on the inner wall of the outer shell, the lower end of the first arc screen is connected to the lower end of the second arc screen, and the upper end of the second arc screen is clamped on the inner wall of the outer shell, and the aperture of the first arc screen is larger than the aperture of the second arc screen.

5. The test soil sample processing and quantification device according to claim 4, characterized in that: The stirring and shearing module includes two groups of stirring and shearing units with the same structure, one group of the stirring and shearing units is located above the first curved screen, and the other group of the stirring and shearing units is located above the second curved screen. When the two groups of the stirring and shearing units rotate, they can simultaneously act on the soil particles passing between the two groups of the stirring and shearing units, and stir and shear the soil particles. When the stirring and shearing units located above the first curved screen rotate, they can drive the soil particles on the first curved screen to move toward the second curved screen.

6. The test soil sample processing and quantification device according to claim 5, characterized in that: The stirring and shearing unit includes a stirring and shearing motor, a gear set, a rotating shaft, a plurality of rotating blades, a plurality of stirring and shearing elements and a plurality of screening brushes. The stirring and shearing motor, the gear set and the rotating shaft are connected in sequence. The plurality of rotating blades are evenly installed on the outer circumference of the rotating shaft, and the plurality of rotating blades, the plurality of stirring and shearing elements correspond to the plurality of screening brushes one by one. The stirring and shearing element is installed at one end of the rotating blade away from the rotating shaft, and the screening brush is installed at one end of the stirring and shearing element away from the rotating blade. The two rotating shafts are staggered in the horizontal and vertical directions, and when the two rotating shafts drive the corresponding rotating blades to rotate, the two rotating blades close to each other on different rotating shafts can drive the stirring and shearing element to stir and shear the soil, and when the rotating blade located above the first arc-shaped screen rotates until the corresponding screening brush contacts the first arc-shaped screen, the screening brush can push the soil particles to move toward the second arc-shaped screen.

7. The test soil sample processing and quantification device according to claim 1, characterized in that: The debris removal module includes a negative pressure adsorption component, a debris removal motor, a track, an electrostatic generating component, a plurality of transverse electrostatic adsorption rods and a plurality of longitudinal electrostatic adsorption lines. The negative pressure adsorption component is installed on one side of the shell and can be connected to the inside of the shell. The track is a runway-shaped track, and the track includes a first section and a second section that are smoothly connected. The electrostatic generating component is connected to the track and can make the first section have static electricity and the second section not have static electricity. A plurality of transverse electrostatic adsorption rods are installed on the track and are arranged in sequence along the extension direction of the track, and the transverse electrostatic adsorption rods can be connected to the track. A plurality of longitudinal electrostatic adsorption lines correspond to a plurality of transverse electrostatic adsorption rods one by one, and a plurality of longitudinal electrostatic adsorption lines are surrounded by a runway shape and are sleeved on the outer periphery of the track, and the outer side of the longitudinal electrostatic adsorption line is used to receive soil particles. The adjacent longitudinal electrostatic adsorption lines are connected by insulating fixings but are not conductive, the transverse electrostatic adsorption rod is located in the inner circle of the plurality of longitudinal electrostatic adsorption lines and is conductive with the corresponding longitudinal electrostatic adsorption lines, the debris removal motor can drive each of the transverse electrostatic adsorption rods to move around the track, and when the transverse electrostatic adsorption rod is located in the first section, it can electrostatically adsorb grass and wood chips on the corresponding longitudinal electrostatic adsorption line, when the transverse electrostatic adsorption rod is located in the second section, it no longer adsorbs grass and wood chips on the corresponding longitudinal electrostatic adsorption line, and enables the negative pressure adsorption component to discharge the grass and wood chips, the negative pressure adsorption component includes a debris capture part and a negative pressure suction pipe, one end of the negative pressure suction pipe is arranged close to the second section, and the other end of the negative pressure suction pipe is connected to the debris capture part, the debris capture part is used to provide negative pressure wind and discharge grass and wood chips through the negative pressure suction pipe.

8. The test soil sample processing and quantification device according to claim 7, characterized in that: The first section is a first positive charge track, the second section is an insulating track, and the static electricity generating component is connected to the first positive charge track.

9. The test soil sample processing and quantification device according to claim 7, characterized in that: The first section is a second positive charge track, the second section is a negative charge track, the positive electrode of the static electricity generating component is connected to the second positive charge track, and the negative electrode of the static electricity generating component is connected to the negative charge track.

10. The test soil sample processing and quantification device according to claim 1, characterized in that: The weighing and transmission module includes a weighing sensor, a hopper, a bracket, a transmission motor, a screw conveying reducer and a screw conveying pipe. The hopper is installed at the lower end of the shell and is connected to the inside of the shell. The bracket is installed on the outer periphery of the hopper. The weighing sensor is installed at the upper end of the hopper and can allow soil particles falling from the shell to enter the hopper after weighing. The lower end of the hopper is connected to the lower end of the screw conveying pipe, and the upper end of the screw conveying pipe extends obliquely upward and is provided with a soil outlet. The transmission motor is connected to the screw conveying reducer, and the screw conveying reducer is connected to the lower end of the screw in the screw conveying pipe.

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