CN112504735A - Soil detection method - Google Patents
Soil detection method Download PDFInfo
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- CN112504735A CN112504735A CN202011498064.0A CN202011498064A CN112504735A CN 112504735 A CN112504735 A CN 112504735A CN 202011498064 A CN202011498064 A CN 202011498064A CN 112504735 A CN112504735 A CN 112504735A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
Abstract
The invention discloses a soil detection method, which comprises the following steps: selecting sampling points, and sampling wet soil by using a sampling device; selecting a plurality of sampling points, wherein the plurality of sampling points are arranged at intervals, and the connecting lines of the sampling points enclose a closed area, and the closed area is marked as soil sampling of the sampling points until N; n is a positive integer of five or more; after sampling, respectively packaging and recording the samples as one, two, three, four to N; step two: air drying; sequentially spreading the soil bags to be detected which are respectively marked by the sampling package, standing for 10-15min, turning over and stirring a plurality of soil bags during spreading, and respectively putting the soil bags to be detected into soil containing boxes in an air drying device for air drying; step three: grinding; sequentially putting the air-dried soil into a grinding device in sequence for grinding respectively; step four: removing impurities and sieving; putting the ground soil into an impurity removal filtering device; step five: preparing a detection solution, and uniformly mixing the detection solution by a uniformly mixing device. The invention has good detection effect, solves the defects in the prior art, and improves the efficiency and the precision of soil detection.
Description
Technical Field
The invention belongs to the technical field of soil detection.
Background
Soil environment monitoring means that environment quality and change trend thereof are determined by measuring representative values of factors affecting soil environment quality.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the soil detection method which has good detection effect, solves the technical defects in the current soil detection process steps, and improves the efficiency and the precision of soil detection.
The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the soil detection method is as follows:
the method comprises the following steps: selecting sampling points, and sampling wet soil through a sampling device;
selecting a plurality of sampling points, wherein the sampling points are arranged at intervals, and the connecting lines of the sampling points enclose a closed area, namely sampling the soil marked as a first sampling point until N is reached; n is a positive integer of five or more; after sampling, respectively packaging and recording as one, two, three, four to N;
step two: air drying;
sequentially spreading the soil bags to be detected which are respectively marked by the sampling package, standing for 10-15min, turning over and stirring a plurality of soil bags during spreading, and respectively putting the soil bags to be detected into soil containing boxes in an air drying device for air drying; sampling, packaging and respectively marking soil bags to be detected, sequentially spreading, spreading and standing, and turning and stirring a plurality of gaps in the spreading and standing period; the materials are piled in a pointed cone shape after standing time, and inconsistent dryness in a long-term air-dried state is avoided.
Step three: grinding; sequentially putting the air-dried soil into a grinding device in sequence for grinding respectively;
step four: removing impurities and sieving; putting the ground soil into an impurity removal filtering device;
step five: preparing a detection solution, and uniformly mixing the detection solution by a uniformly mixing device.
Further, the sampling device comprises a sampling cylinder and a sampling shaft, and the sampling shaft vertically extends into the sampling cylinder; the sampling device is characterized in that the lower end of the sampling shaft is provided with a cone, the lower side surface of the sampling shaft is provided with a helical blade, a feeding cylinder is connected between the lower end of the sampling cylinder and the cone, the upper end of the feeding cylinder is fixedly connected with the sampling cylinder, the lower end of the feeding cylinder is arranged in a micro-gap with the cone, the side surface of the feeding cylinder is provided with a feeding hole, and the input end of the helical blade corresponds to; the top opening of the sampling cylinder is communicated with the outside; the sampling cylinder is characterized in that a feeding plate and a material limiting plate are sequentially arranged on the inner wall of the sampling cylinder from bottom to top, the feeding plate and the material limiting plate are in rotary sealing fit with the sampling shaft, and a soil storage cavity is formed by limiting the feeding plate and the material limiting plate; the feeding plate corresponds to the output end of the spiral blade, and a feeding hole is formed in the feeding plate; and a water filtering hole is formed in the material limiting plate, and a water suction pipe led in from a top cylinder opening of the sampling cylinder is arranged above the material limiting plate.
The upper end of the feed hole is butted with a feed valve, and the lower end of the feed hole is covered with a filter screen; a floating body is arranged at one end of the water suction pipe extending into the sampling cylinder, a water suction pump is connected at the other end of the water suction pipe, and the water inlet end of the water suction pipe penetrates through the floating body and is conducted to the lower surface of the floating body; a pressing plate is arranged on the outer side surface of the sampling cylinder through an electric push rod facing downwards vertically, and the pressing plate is arranged close to the sampling cylinder; the top of the sampling cylinder is connected with a transverse supporting plate, the sampling shaft is connected with a servo motor arranged on the transverse supporting plate, the electric push rod is arranged on the transverse supporting plate, a handle is arranged on the transverse supporting plate, and the feeding plate and the material limiting plate are in rotary sealing connection with the sampling shaft through a shaft sealing piece.
Further, the air drying device comprises a rotary air drying cylinder and a soil containing box arranged in the rotary air drying cylinder; the two ends of the rotary air drying cylinder are both open, one end of the rotary air drying cylinder is provided with a fan, and the other end of the rotary air drying cylinder is open; the soil containing box is fixedly connected with the rotary air drying cylinder, and the box wall of the soil containing box is in a ventilation hollow shape; the fan supplies air to the rotary air drying cylinder, and the rotary air drying cylinder drives the soil containing box to synchronously rotate;
the soil containing box is formed by filling a ventilating hollowed-out box wall on a peripheral box framework, the ventilating hollowed-out box wall comprises a fixed ventilating hollowed-out box wall and a movable ventilating hollowed-out box wall, a box opening is formed in one side, facing the opening of the rotary air drying cylinder, of the soil containing box, and the movable ventilating hollowed-out box wall and the box opening are detachably mounted;
the inner side edge of the movable air-permeable hollowed box wall is provided with an inner embedded ring, the outer side edge of the movable air-permeable hollowed box wall is provided with an outer limiting ring, and the outer side of the movable air-permeable hollowed box wall is provided with a handle; the inner embedded ring is matched with the embedded box opening to mount the movable air-permeable hollowed box wall, and the movable air-permeable hollowed box wall is limited by the outer limiting ring positioned outside the box opening;
the air-permeable hollowed-out box wall is a net rack or is formed by uniformly arranging through holes on a plate;
the device also comprises an angle adjusting frame, a vertical bearing seat and a driving mechanism; the rotary air drying cylinder is arranged on the angle adjusting frame in a rotating fit mode through a vertical bearing seat, and the circumferential rotation of the rotary air drying cylinder is driven by a driving mechanism;
the angle adjusting frame comprises an L-shaped fixed plate, a movable supporting plate connected to the top end of the L-shaped fixed plate through a rotating shaft, and a hydraulic cylinder connecting the movable supporting plate and the L-shaped fixed plate through a hinge; the vertical bearing seat is arranged on the movable supporting plate; the hydraulic cylinder pushes and pulls the movable support plate to rotate around the rotating shaft, so that the inclination angles of the rotary air drying cylinder (f1) and the soil containing box can be adjusted;
the driving mechanism comprises a motor arranged on the movable supporting plate, a gear arranged on the motor and a gear ring which is fixedly sleeved on the periphery of the rotary air drying cylinder and is meshed with the gear.
Furthermore, the grinding device comprises a grinding container, a rotating shaft, a grinding cutter set and an annular heavy impact block;
the grinding container is vertically arranged, the rotating shaft vertically extends into the grinding container, the grinding cutter set is arranged at the lower part of the rotating shaft, the annular heavy impact block is sleeved on the rotating shaft in a clearance mode, and the annular heavy impact block is located right above the grinding cutter set;
the rotating shaft drives the grinding cutter set to rotate to grind the soil sample, and the annular heavy impact block moves downwards to heavy impact the soil sample;
soil crushing cones are uniformly and densely distributed at the bottom of the annular heavy impact block;
the periphery of the annular heavy impact block is in friction sliding fit with the inner device wall of the grinding container, the inner ring of the annular heavy impact block is filled with a breathable dust-inhibiting substance, and the bottom of the breathable dust-inhibiting substance is higher than that of the annular heavy impact block;
the air-permeable dust-inhibiting object is provided with a mounting plate fixedly connected to the top of the air-permeable dust-inhibiting object, the mounting plate is mounted on the top of the annular heavy impact block through a bolt, and the mounting plate is provided with an air vent;
the air permeable dust-inhibiting substance is composed of two semi-permeable dust-inhibiting substances which sandwich the rotating shaft, and the air permeable dust-inhibiting substance is in friction sliding fit with the rotating shaft; the mounting plate is composed of two half mounting plates which sandwich the rotating shaft, and the mounting plates are in friction sliding fit with the rotating shaft;
the outer side surface of the grinding container is provided with a feeding hole, and the outer bottom surface of the grinding container is provided with a discharge valve;
the rotating shaft provides a rotating driving force through a motor arranged at the top of the grinding container, and the annular heavy impact block provides a vertical movement driving force through an air cylinder arranged at the top of the grinding container;
the rotating shaft comprises a long shaft connected to the upper end of the grinding cutter set and a short shaft connected to the lower end of the grinding cutter set, the long shaft is connected with the motor, and the short shaft is connected with the bottom of the grinding container in a rotating matching manner;
the grinding cutter set comprises a cutter shaft rod connected between a long shaft and a short shaft and further comprises a grinding cutter arranged on the cutter shaft rod.
Further, the impurity removing and sieving device comprises a light impurity removing container, a heavy impurity sieving container and a material receiving container, wherein the light impurity removing container, the heavy impurity sieving container and the material receiving container are sequentially butted from top to bottom, and the top of the light impurity removing container is provided with a material inlet;
bristles are densely distributed in the light impurity removing container in the circumferential direction, and an air inlet is formed in the bottom of the side of the light impurity removing container;
a sieve plate is arranged in the heavy impurity sieving container, and a material stirring unit is arranged on the sieve plate;
a central column is concentrically arranged in the light impurity removing container and is fixedly connected with the inner wall of the light impurity removing container through a connecting rod; the root of the bristles is fixedly connected with the inner wall of the light impurity removal container, and the bristles transversely extend towards the central column to enable the tips of the bristles to abut against the central column;
the air inlet is provided with a small fan; sieve pores are densely distributed on the sieve plate;
the material shifting unit comprises a material shifting rod driven by a motor, the motor is arranged at the bottom of the sieve plate, the material shifting rod is transversely arranged at the top of the sieve plate, and the material shifting rod and the top surface of the sieve plate are in friction fit or are in reserved micro clearance fit;
a through hole is transversely formed in the material poking rod in a penetrating manner;
the light impurity removing container, the heavy impurity sieving container and the material receiving container are sequentially screwed in a threaded manner.
Further, the blending device comprises a blending container which is cylindrical and vertically arranged, the center of the top of the blending container is provided with a feeding hole, and the bottom of the side of the blending container is provided with a discharging hole;
the mixing device is characterized by also comprising a movable rod, wherein the movable rod penetrates through the discharge hole and is inserted into the solution in the mixing container, the movable rod is of a hollow structure, the top end of the movable rod is butted with an air supply pump, the bottom end of the movable rod is butted with a round box body, and the round box body is provided with an air distribution hole and a stirring plate;
the device also comprises a shaft movement driving mechanism and a turnover driving mechanism, wherein the shaft movement driving mechanism drives the movable rod to drive the round box body to move up and down, and the turnover driving mechanism drives the movable rod to drive the round box body to rotate circumferentially;
the plurality of air distribution holes are uniformly distributed on the surface of the round box body, and the plurality of stirring plates are circumferentially arrayed on the outer side surface of the round box body;
the top of the blending container is provided with a vertical supporting plate, a vertical sliding rail is arranged on the vertical supporting plate, and the axial movement driving mechanism comprises a vertical rack arranged on the vertical sliding rail and a vertical gear which is meshed with the vertical rack and is driven by a servo motor arranged on the vertical supporting plate;
an L-shaped supporting plate is arranged at the back of the vertical rack, a transverse bearing seat is arranged on the L-shaped supporting plate, and the movable rod penetrates through the bearing seat; the turnover driving mechanism comprises an outer gear ring fixedly sleeved on the movable rod and a transverse gear which is meshed with the outer gear ring and driven by a motor arranged on the L-shaped supporting plate;
the discharge port is provided with a discharge valve;
the blending container is supported by supporting legs, and the supporting legs are positioned at the bottom or the side surface of the blending container.
Furthermore, the lines enclose to form a closed area, and the shape of the closed area is a regular quadrangle or a regular triangle.
Further, preferably, the soil bags to be detected are sequentially spread and kept standing for 12 min.
Has the advantages that: the soil detection method provided by the invention has a good detection effect, solves the technical defects in the current soil detection process steps, and improves the efficiency and precision of soil detection.
1) Part of water in the soil sample is removed in the sampling process, so that the subsequent storage and treatment of the soil sample are facilitated;
2) the waste caused by wind not blowing to the soil is prevented, and the air drying device has the advantages of good air drying effect and high efficiency;
3) the method can prevent larger soil particles from splashing and soil dust from flying in the soil grinding process, and avoid incomplete soil crushing and environmental pollution;
4) sequentially screening, namely removing light impurities such as weeds and the like, and then screening impurities such as pebbles and the like;
5) the gas stirring and the mechanical liquid pushing stirring can cover the inner space of the whole mixing container, so that the solution mixing operation is more thorough and efficient.
Drawings
FIG. 1 is a schematic diagram of the steps of the detection method.
FIG. 2 is a schematic view of a sampling device
FIG. 3 is a schematic structural view of an air drying device I;
FIG. 4 is a schematic structural view of an air drying device II;
FIG. 5 is a first schematic structural view of a polishing apparatus;
FIG. 6 is a second schematic structural view of the polishing apparatus;
FIG. 7 is a third schematic view of the structure of the polishing apparatus;
FIG. 8 is a fourth schematic view of the grinding apparatus;
FIG. 9 is a schematic view of the structure of the impurity removing and sieving device;
FIG. 10 is a schematic structural view of a kneading apparatus;
Detailed Description
The invention will be further described with reference to the accompanying figures 1-10.
The method comprises the following steps: selecting sampling points, and sampling wet soil through a sampling device;
selecting a plurality of sampling points, wherein the sampling points are arranged at intervals, and the connecting lines of the sampling points enclose a closed area, namely sampling the soil marked as a first sampling point until N is reached; n is a positive integer of five or more; after sampling, respectively packaging and recording as one, two, three, four to N;
step two: air drying;
sequentially spreading the soil bags to be detected which are respectively marked by the sampling package, standing for 10-15min, turning over and stirring a plurality of soil bags during spreading, and respectively putting the soil bags to be detected into soil containing boxes in an air drying device for air drying; sampling, packaging and respectively marking soil bags to be detected, sequentially spreading, spreading and standing, and turning and stirring a plurality of gaps in the spreading and standing period; the materials are piled in a pointed cone shape after standing time, and inconsistent dryness in a long-term air-dried state is avoided.
Step three: grinding; sequentially putting the air-dried soil into a grinding device in sequence for grinding respectively;
step four: removing impurities and sieving; putting the ground soil into an impurity removal filtering device;
step five: preparing a detection solution, and uniformly mixing the detection solution by a uniformly mixing device.
The lines are enclosed to form a closed area with a shape of a regular quadrangle or a regular triangle.
Preferably, the soil bags to be detected are sequentially spread and kept standing for 12 min.
The sampling device comprises a sampling cylinder q1 and a sampling shaft q2, wherein the sampling shaft q2 vertically extends into the sampling cylinder q 1; the lower end of the sampling shaft q2 is provided with a cone q3, the lower side surface of the sampling shaft q2 is provided with a helical blade q17, a feeding cylinder q4 is connected between the lower end of the sampling cylinder q1 and the cone q3, the upper end of the feeding cylinder q4 is fixedly connected with the sampling cylinder q1, the lower end of the feeding cylinder q4 is arranged with a small gap of the cone q3, the side surface of the feeding cylinder q4 is provided with a feeding hole q40, and the input end of the helical blade q17 corresponds to the feeding hole q 40; the top nozzle of the sampling tube q1 is communicated with the outside; a feeding plate q5 and a material limiting plate q6 are sequentially arranged on the inner wall of the sampling cylinder q1 from bottom to top, the feeding plate q5 and the material limiting plate q6 are in rotary sealing fit with a sampling shaft q2, and a soil storage cavity q56 is formed by limiting between the feeding plate q5 and the material limiting plate q 6; the feeding plate q5 corresponds to the output end of the helical blade q17, and a feeding hole q50 is formed in the feeding plate q 5; the upper end of the feed hole q50 is butted with a feed valve q8, and the lower end of the feed hole q50 is covered with a filter screen q 9; the material limiting plate q6 is provided with a water filtering hole q60, and a water suction pipe q7 led in from the top opening of the sampling cylinder q1 is arranged above the material limiting plate q 6. This technical scheme is in sampling the wet-type soil that contains obvious moisture, and can clear away the partial moisture in the soil sample in the sampling process, and the follow-up preservation and the processing to the soil sample of being convenient for specifically are: during sampling cylinder 1 inserted soil, because soil water cost is high, mobility is just stronger, and feed inlet q40 is mended automatically to the soil around feed cylinder q4, and rotatory sampling axle q2 drives helical blade q17 and rotates and upwards carry soil, and soil passes through feed port q50 and saves in soil storage chamber q56, and filter screen 9 filters soil, prevents that weeds from getting into.
One end of the water suction pipe 7 extending into the sampling cylinder 1 is provided with a floating body q10, the other end of the water suction pipe q7 is connected with a water suction pump 11, and the water inlet end of the water suction pipe 7 penetrates through the floating body q10 and is communicated with the lower surface of the floating body 10. As the soil in the soil storage cavity q56 increases and the helical blade q17 continuously samples and conveys the soil, the soil is squeezed by the material limiting plate q6 to discharge water, the floating body q10 floats on the surface of the filtered water, and the water suction pump q11 is started to suck the water through the water suction pipe q 7.
Sampling cylinder q1 lateral surface is provided with clamp plate 13 through vertical electric putter 12 down, clamp plate q13 is close to sampling cylinder q1 and sets up, pushes away clamp plate q13 through electric putter q12 and pushes down soil surface, can promote the automatic sampling vacancy position of mending of soil below the surface to improve soil sampling efficiency.
The top of the sampling cylinder q1 is connected with a transverse supporting plate q14, the sampling shaft q2 is connected with a servo motor q15 arranged on the transverse supporting plate q14, the electric push rod q12 is arranged on the transverse supporting plate q14, and a handle q16 is arranged on the transverse supporting plate q14, so that manual sampling is facilitated.
More specifically, the feeding plate q5 and the material limiting plate q6 are connected with the sampling shaft q2 in a rotating and sealing mode through a shaft sealing piece q 18.
The air drying device comprises a rotary air drying cylinder f1 and a soil containing box f4 arranged in the rotary air drying cylinder f 1; the two ends of the rotary air drying cylinder f1 are both open, one end of the rotary air drying cylinder f1 is provided with an opening which is provided with a fan f6, and the other end of the rotary air drying cylinder f1 is open; the soil containing box f4 is fixedly connected with the rotary air drying cylinder f1, and the wall of the soil containing box f4 is air-permeable and hollow; the fan f6 supplies air to the rotary air drying cylinder f1, and the rotary air drying cylinder f1 drives the soil containing box 4 to rotate synchronously. Soil in holding case 4 is air-dried through leading-in rotatory air-dry section of thick bamboo f1 of drying with wind, and rotatory air-dry section of thick bamboo 1 has the constraint effect to wind, prevents the wind diffusion, and on the other hand can avoid the wind that fan f6 produced to take place the off tracking, just also prevents that wind from not blowing to cause the waste on the soil, and rotatory soil holds case f4 and can realize turning over the soil operation, has the advantage that the air-dry effect is good, efficient.
The soil containing box 4 is formed by filling a peripheral box framework f4.1 with a ventilating hollowed-out box wall f4.2, the ventilating hollowed-out box wall f4.2 comprises a fixed ventilating hollowed-out box wall f4.21 and a movable ventilating hollowed-out box wall f4.22, the soil containing box f4 is provided with a box opening f4.0 towards one side of an opening of a rotary air drying cylinder f1, and the movable ventilating hollowed-out box wall 4.22 and the box opening f4.0 are detachably mounted, so that soil can be loaded and unloaded conveniently.
An inner embedded ring f4.221 is arranged at the edge of the inner side of the movable ventilating hollow box wall f4.22, an outer limiting ring f4.222 is arranged at the edge of the outer side, and a handle f4.223 is arranged at the outer side; the inner embedding ring f4.221 is matched with the embedded box opening f4.0 to install the movable air-permeable hollowed-out box wall f4.22, and the movable air-permeable hollowed-out box wall f4.22 is limited by the outer limiting ring f4.222 located outside the box opening f4.0, so that the detachable installation convenience of the movable air-permeable hollowed-out box wall f4.22 is improved.
The air-permeable hollow box wall f4.2 is a net rack or is formed by uniformly arranging through holes on a plate.
The invention also comprises an angle adjusting frame f1, a vertical bearing seat f2 and a driving mechanism f 5; the rotary air drying cylinder f1 is arranged on the angle adjusting frame f1 through a vertical bearing seat f2 in a rotating and matching mode, and the circumferential rotation of the rotary air drying cylinder f1 is driven through a driving mechanism f5.
The angle adjusting frame f1 comprises an L-shaped fixed plate f1.1, a movable supporting plate f1.2 connected to the top end of the L-shaped fixed plate f1.1 through a rotating shaft f1.4, and a hydraulic cylinder f1.3 connecting the movable supporting plate f1.2 and the L-shaped fixed plate f1.1 through a hinge piece f 1.5; the vertical bearing seat f2 is arranged on the movable supporting plate f 1.2; the hydraulic cylinder f1.3 pushes and pulls the movable supporting plate f1.2 to rotate around the rotating shaft f1.4, so that the inclination angles of the rotary air drying cylinder f1 and the soil containing box f4 can be adjusted. The angle of the soil containing box f4 is adjusted to enable the box opening f4.0 to be upward, so that the soil can be conveniently and manually filled into the soil containing box f4, and the soil can automatically roll down and spread under the action of gravity; adjust soil and hold case f 4's angle and make its case mouth f4.0 down, can conveniently pour out the soil that the air-dries.
The driving mechanism f5 comprises a motor f5.1 arranged on the movable supporting plate f1.2, a gear f5.2 arranged on the motor f5.1 and a gear ring f5.3 which is sleeved and fixed on the periphery of the rotary air drying cylinder f1 and meshed with the gear f 5.2.
The grinding device comprises a grinding container y1, a rotating shaft y2, a grinding knife set y3 and an annular heavy hit block y 4; the grinding container y1 is vertically arranged, the rotating shaft y2 vertically extends into the grinding container y1, the grinding cutter set y3 is arranged at the lower part of the rotating shaft y2, the annular heavy hitting block y4 is sleeved on the rotating shaft y2 in a clearance mode, and the annular heavy hitting block y4 is located right above the grinding cutter set y 3; the rotating shaft y2 drives the grinding knife set y3 to rotate and grind the soil sample, and simultaneously, the annular heavy impact block y4 moves downwards to heavy impact the soil sample. The annular heavy impact block y4 is matched with the grinding knife set y3, so that the complete, quick and efficient crushing and grinding operation on the soil sample can be realized, and the method is suitable for large-scale popularization.
The broken cone y4.1 of the even densely covered soil in annular heavy hit piece y4 bottom can smash the soil piece to improve soil crushing efficiency, improve soil grinding efficiency.
The periphery of annular heavy stroke piece y4 and the interior ware wall friction of grinding container y1 are slided and are cooperated, the inner circle of annular heavy stroke piece y4 is filled and is had ventilative dirt thing y4.2 of pressing down, can prevent that the soil from grinding the operation in-process than bigger soil particle splash and soil raise dust, avoid causing the broken thoroughly of soil and environmental pollution, more specifically, ventilative dirt thing y4.2 of pressing down's bottom is higher than the bottom of annular heavy stroke piece y4, avoids ventilative dirt thing y4.2 direct contact soil sample to cause the jam.
The breathable dust suppression object y4.2 is provided with a mounting plate y4.3 fixedly connected to the top of the breathable dust suppression object, the mounting plate y4.3 is mounted at the top of the annular heavy striking block y4 through bolts, and the mounting plate y4.3 is provided with a vent hole y4.30, so that the breathability is ensured, and the pressure balance of the upper space and the lower space of the annular heavy striking block y4 is kept.
The air-permeable dust suppression object y4.2 is composed of two semi-permeable air-permeable dust suppression objects y4.21 which sandwich the rotating shaft y2, and the air-permeable dust suppression object y4.2 is in friction sliding fit with the rotating shaft y 2; the mounting plate y4.3 is composed of two half mounting plates y4.31 which sandwich the rotating shaft y2, and the mounting plate y4.3 is in friction sliding fit with the rotating shaft y2. The disassembly and assembly convenience of the breathable dust suppression object y4.2 is improved, and the maintenance or the replacement is convenient.
Ventilative dust thing y4.2 is for being formed by multilayer steel wire net range upon range of setting, and the steel wire net is woven by thin steel wire, and the mesh of steel wire net is tiny moreover.
The grinding container y1 has a feed inlet y1a on the outer side and a discharge valve y1b on the outer bottom.
The rotating shaft y2 provides a rotating driving force through a motor y20 arranged at the top of the grinding container y1, and the annular heavy striking block y4 provides a vertical moving driving force through an air cylinder y40 arranged at the top of the grinding container y 1.
The rotating shaft y2 comprises a long shaft y2.1 connected to the upper end of the grinding knife group y3 and a short shaft y2.2 connected to the lower end of the grinding knife group y3, the long shaft y2.1 is connected with a motor y20, and the short shaft y2.2 is connected with the bottom of a grinding container y1 in a rotating fit mode.
The grinding cutter group y3 comprises a cutter shaft rod y3.1 connected between the long shaft y2.1 and the short shaft y2.2, and further comprises a grinding cutter y3.2 mounted on the cutter shaft rod y 3.1.
The impurity removing and sieving device comprises a light impurity removing container c1, a heavy impurity sieving container c2 and a material receiving container c3, wherein the light impurity removing container c1, the heavy impurity sieving container c2 and the material receiving container c3 are sequentially butted from top to bottom, and the top of the light impurity removing container c1 is provided with a material inlet c1 a.
The light impurity removing container c1 is internally and circumferentially densely distributed with bristles c1.1, soil is poured from a material inlet c1a, the soil passes through gaps among the bristles c1.1 and falls into a heavy impurity sieving container c2, light impurities such as weeds in the soil are hung on the bristles c1.1, the light impurities are removed, an air inlet c1b is formed in the bottom of the side of the light impurity removing container 1, air is led into the light impurity removing container c1 through the air inlet c1b, the wind is guided upwards, a blocking effect can be formed on the light impurities, the light impurities are prevented from falling into the heavy impurity sieving container 2 along with the soil, and the light impurities are hung on the bristles c1.1 more easily.
Heavy miscellaneous container c2 that sieves is inside to be provided with sieve c2.1, screen hole c2.10 is densely covered on the sieve c2.1, and soil on the sieve c2.1 passes screen hole c2.10, sieves out the weight impurity such as the pebble in the soil, realizes the screening of weight impurity, and installs on the sieve c2.1 and dial material unit c2.2, promotes soil and sieves, avoids soil to pile up and causes the jam.
A central column c1.2 is concentrically arranged in the light impurity removal container c1, and the central column c1.2 is fixedly connected with the inner wall of the light impurity removal container c1 through a connecting rod c 1.21; the root of the brush hair c1.1 is fixedly connected with the inner wall of the light impurity removal container c1, and the brush hair c1.1 transversely extends towards the central column c1.2 so that the tip of the brush hair c1.1 abuts against the central column c 1.2. The central column c1.2 can make up for the vacancy existing at the tip of the brush bristles 1.1, and ensures that all soil can fall into the heavy impurity sieving container c2 after impurity removal.
The air inlet c1b is provided with a small fan c1.3, and the small fan c1.3 supplies air to the light impurity removing container c1.
The material shifting unit c2.2 comprises a material shifting rod c2.22 driven by a motor c2.21, the motor c2.21 is installed at the bottom of the sieve plate c2.1, the material shifting rod c2.22 is transversely arranged at the top of the sieve plate c2.1, and the material shifting rod c2.22 is in friction fit or small clearance fit with the top surface of the sieve plate c 2.1. The soil is dispersed and moved, so that the soil is convenient to sieve.
The material stirring rod c2.22 is transversely provided with a through hole c2.220 in a penetrating manner, so that the material stirring rod c2.22 can be prevented from always pushing a large amount of soil to rotate in the material stirring process, and the soil is uniformly dispersed.
The light impurity removing container c1, the heavy impurity sieving container c2 and the material receiving container c3 are sequentially screwed, so that the three can be detachably mounted, and the cleaning, the maintenance, the replacement and the like are facilitated.
The blending device comprises a blending container h1, the blending container h1 is cylindrical and vertically arranged, the center of the top of the blending container is provided with a feeding port h1a, and the bottom of the side of the blending container is provided with a discharging port h1 b; more specifically, the blending container h1 is supported by a supporting foot h10, and the supporting foot h10 is located at the bottom or the side of the blending container h1.
The mixing device is characterized by further comprising a movable rod h2, wherein the movable rod h2 penetrates through a discharge port h1b and is inserted into a solution in a mixing container h1, the movable rod h2 is of a hollow structure, the top end of the movable rod h2 is in butt joint with an air supply pump h5, the bottom end of the movable rod h2 is in butt joint with a round box body h6, and the round box body h6 is provided with an air distribution hole h60 and a stirring plate h 61; the invention also comprises a shaft-moving driving mechanism h3 and a turnover driving mechanism h4, wherein the shaft-moving driving mechanism h3 drives the movable rod h2 to drive the circular box h6 to move up and down, and the turnover driving mechanism h4 drives the movable rod h2 to drive the circular box h6 to rotate circumferentially. Combine together gas stirring and mechanical shoving stirring to make soil sample dissolve more fully, obtain the more even soil solution of mixture, in addition, move back and forth through round box h6 is upper and lower, can make gas stirring and mechanical shoving stirring cover whole mixing container h 1's inner space, thereby make solution mixing operation more thoroughly, high-efficient.
A plurality of air distribution holes h60 evenly distributed on the surface of circular box h6, a plurality of stirring plates h61 are circumferentially arranged on the outer side surface of the circular box h6 in an array mode, the air distribution holes h60 and the stirring plates h61 are reasonable in position layout, and the pneumatic stirring and mechanical liquid pushing stirring efficiency is improved.
The mixing container 1 top is provided with vertical support board h1.1, be provided with vertical slide rail h1.2 on the vertical support board h1.1, the axial displacement actuating mechanism 3 is including setting up vertical rack h3.1 on vertical slide rail h1.2 and with vertical rack h3.1 mesh and through installing the vertical gear h3.3 of servo motor h3.2 drive on vertical support board h 1.1.
An L-shaped support plate h1.3 is arranged at the back of the vertical rack h3.1, a transverse bearing seat h1.4 is arranged on the L-shaped support plate 1.3, and the movable rod h2 penetrates through the bearing seat h 1.4; the epicyclic driving mechanism h4 comprises an outer gear ring h4.1 fixedly sleeved on the movable rod h2 and a transverse gear h4.3 which is meshed with the outer gear ring h4.1 and is driven by a motor h4.2 arranged on the L-shaped supporting plate h 1.3.
Discharge gate h1b installs bleeder valve h1.b, is convenient for control solution's discharge.
Claims (10)
1. A soil detection method is characterized in that:
the method comprises the following steps: selecting sampling points, and sampling wet soil through a sampling device;
selecting a plurality of sampling points, wherein the sampling points are arranged at intervals, and the connecting lines of the sampling points enclose a closed area, namely sampling the soil marked as a first sampling point until N is reached; n is a positive integer of five or more; after sampling, respectively packaging and recording as one, two, three, four to N;
step two: air drying;
sequentially spreading the soil bags to be detected which are respectively marked by the sampling package, standing for 10-15min, turning over and stirring a plurality of soil bags during spreading, and respectively putting the soil bags to be detected into soil containing boxes in an air drying device for air drying;
step three: grinding; sequentially putting the air-dried soil into a grinding device in sequence for grinding respectively;
step four: removing impurities and sieving; putting the ground soil into an impurity removal filtering device;
step five: preparing a detection solution, and uniformly mixing the detection solution by a uniformly mixing device.
2. A soil detection method according to claim 1, wherein: the sampling device comprises a sampling cylinder (q1) and a sampling shaft (q2), wherein the sampling shaft (q2) vertically extends into the sampling cylinder (q 1); a cone (q3) is arranged at the lower end of the sampling shaft (q2), spiral blades (q17) are arranged on the lower side of the sampling shaft, a feeding cylinder (q4) is connected between the lower end of the sampling cylinder (q1) and the cone (q3), the upper end of the feeding cylinder (q4) is fixedly connected with the sampling cylinder (q1), the lower end of the feeding cylinder (q4) is arranged in a micro-gap with the cone (q3), a feeding hole (q40) is formed in the side surface of the feeding cylinder (q4), and the input end of each spiral blade (q17) corresponds to the feeding hole (q 40);
the top nozzle of the sampling cylinder (q1) is communicated with the outside; a feeding plate (q5) and a material limiting plate (q6) are sequentially arranged on the inner wall of the sampling cylinder (q1) from bottom to top, the feeding plate (q5) and the material limiting plate (q6) are in rotary sealing fit with the sampling shaft (q2), and a soil storage cavity (q56) is formed by limiting between the feeding plate (q5) and the material limiting plate (q 6); the feeding plate (q5) corresponds to the output end of the helical blade (q17), and a feeding hole (q50) is formed in the feeding plate (q 5); the material limiting plate (q6) is provided with a water filtering hole (q60), and a water suction pipe (q7) led in from the top barrel mouth of the sampling barrel (q1) is arranged above the material limiting plate (q 6).
3. A soil detection method according to claim 2, wherein: the upper end of the feeding hole (q50) is butted with a feeding valve (q8), and the lower end of the feeding hole is covered with a filter screen (q 9); one end of the water suction pipe (q7) extending into the sampling cylinder (q1) is provided with a floating body (q10), the other end of the water suction pipe (q7) is connected with a water suction pump (q11), and the water inlet end of the water suction pipe (q7) penetrates through the floating body (q10) and is communicated with the lower surface of the floating body (10); a pressure plate (q13) is arranged on the outer side surface of the sampling cylinder (q1) through a vertically downward electric push rod (q12), and the pressure plate (q13) is arranged close to the sampling cylinder (q 1); the top of the sampling cylinder (q1) is connected with a transverse supporting plate (q14), the sampling shaft (q2) is connected with a servo motor (q15) arranged on the transverse supporting plate (q14), the electric push rod (q12) is arranged on the transverse supporting plate (q14), and a handle (q16) is arranged on the transverse supporting plate (q 14); the feeding plate (q5) and the material limiting plate (q6) are connected with the sampling shaft (q2) in a rotating and sealing mode through a shaft sealing piece (q 18).
4. A soil detection method according to claim 1, wherein: the air drying device comprises a rotary air drying cylinder (f1) and a soil containing box (f4) arranged in the rotary air drying cylinder (f 1); the two ends of the rotary air drying cylinder (f1) are both open, one end of the rotary air drying cylinder is provided with a fan (f6), and the other end of the rotary air drying cylinder is open; the soil containing box (f4) is fixedly connected with the rotary air drying cylinder (f1), and the wall of the soil containing box (f4) is air-permeable and hollow; the fan (f6) supplies air to the rotary air drying cylinder (f1), and the rotary air drying cylinder (f1) drives the soil containing box (f4) to synchronously rotate;
the soil containing box (f4) is formed by filling a ventilating hollowed-out box wall (f4.2) with a peripheral box framework (f4.1), the ventilating hollowed-out box wall (f4.2) comprises a fixed ventilating hollowed-out box wall (f4.21) and a movable ventilating hollowed-out box wall (f4.22), a box opening (f4.0) is formed in one side, facing the opening of the rotary air drying cylinder (f1), of the soil containing box (f4), and the movable ventilating hollowed-out box wall (f4.22) and the box opening (f4.0) are detachably mounted;
an inner embedded ring (f4.221) is arranged at the edge of the inner side of the movable ventilating hollow box wall (f4.22), an outer limiting ring (f4.222) is arranged at the edge of the outer side, and a handle (f4.223) is arranged at the outer side; the inner embedding ring (f4.221) is matched with the embedded box opening (f4.0) to install the movable air-permeable hollowed-out box wall (f4.22), and the movable air-permeable hollowed-out box wall (f4.22) is limited by the outer limiting ring (f4.222) positioned outside the box opening (f 4.0);
the air-permeable hollowed-out box wall (f4.2) is a net rack or is formed by uniformly arranging through holes on a plate;
the device also comprises an angle adjusting frame (f1), a vertical bearing seat (f2) and a driving mechanism (f 5); the rotary air drying cylinder (f1) is arranged on the angle adjusting frame (f1) in a rotating and matching mode through a vertical bearing seat (f2), and the circumferential rotation of the rotary air drying cylinder (f1) is driven through a driving mechanism (f 5);
the angle adjusting frame (f1) comprises an L-shaped fixing plate (f1.1), a movable supporting plate (f1.2) connected to the top end of the L-shaped fixing plate (f1.1) through a rotating shaft (f1.4), and a hydraulic cylinder (f1.3) connecting the movable supporting plate (f1.2) and the L-shaped fixing plate (f1.1) through a hinge piece (f 1.5); the vertical bearing seat (f2) is arranged on the movable supporting plate (f 1.2); the hydraulic cylinder (f1.3) pushes and pulls the movable support plate (f1.2) to rotate around the rotating shaft (f1.4) so as to adjust the inclination angles of the rotary air drying cylinder (f1) and the soil containing box (f 4);
the driving mechanism (f5) comprises a motor (f5.1) arranged on the movable supporting plate (f1.2), a gear (f5.2) arranged on the motor (f5.1) and a gear ring (f5.3) which is fixedly sleeved on the periphery of the rotary air drying cylinder (f1) and meshed with the gear (f 5.2).
5. A soil detection method according to claim 1, wherein: the grinding device comprises a grinding container (y1), a rotating shaft (y2), a grinding knife set (y3) and an annular heavy hit block (y 4);
the grinding container (y1) is vertically arranged, the rotating shaft (y2) vertically extends into the grinding container (y1), the grinding cutter set (y3) is arranged at the lower part of the rotating shaft (y2), the annular heavy striking block (y4) is sleeved on the rotating shaft (y2) in a clearance mode, and the annular heavy striking block (y4) is located right above the grinding cutter set (3);
the rotating shaft (y2) drives the grinding knife set (y3) to rotate and grind the soil sample, and meanwhile, the annular heavy impact block (y4) moves downwards to heavy impact the soil sample;
soil crushing cones (y4.1) are uniformly and densely distributed at the bottom of the annular heavy impact block (y 4);
the outer periphery of the annular heavy impact block (y4) is in friction sliding fit with the inner device wall of the grinding container (y1), the inner ring of the annular heavy impact block (y4) is filled with air-permeable dust-inhibiting substances (y4.2), and the bottom of the air-permeable dust-inhibiting substances (y4.2) is higher than the bottom of the annular heavy impact block (y 4);
the ventilating dust suppression object (y4.2) is provided with a mounting plate (y4.3) fixedly connected to the top of the ventilating dust suppression object, the mounting plate (4.3) is mounted on the top of the annular heavy impact block (y4) through a bolt, and the mounting plate (y4.3) is provided with a vent hole (y 4.30);
the air permeable dust suppression object (y4.2) is composed of two semi-permeable air suppression objects (y4.21) which sandwich the rotating shaft (y2), and the air permeable dust suppression object (y4.2) is in friction sliding fit with the rotating shaft (y 2); the mounting plate (y4.3) is composed of two half mounting plates (y4.31) which clamp the rotating shaft (y2), and the mounting plate (y4.3) is in friction sliding fit with the rotating shaft (y 2);
the outer side surface of the grinding container (y1) is provided with a feed inlet (y1a), and the outer bottom surface is provided with a discharge valve (y1 b);
the rotating shaft (y2) provides a rotating driving force through a motor (y20) arranged at the top of the grinding container (y1), and the annular heavy hitting block (y4) provides a vertical moving driving force through a cylinder (y40) arranged at the top of the grinding container (y 1);
the rotating shaft (y2) comprises a long shaft (y2.1) connected to the upper end of the grinding knife set (y3) and a short shaft (y2.2) connected to the lower end of the grinding knife set (y3), the long shaft (y2.1) is connected with a motor (y20), and the short shaft (y2.2) is connected with the bottom of the grinding container (y1) in a rotating fit manner;
the grinding knife group (3) comprises a knife shaft rod (y3.1) connected between the long shaft (y2.1) and the short shaft (y2.2), and further comprises a grinding knife (y3.2) arranged on the knife shaft rod (y 3.1).
6. A soil detection method according to claim 1, wherein: the impurity removing and sieving device comprises a light impurity removing container (c1), a heavy impurity sieving container (c2) and a material receiving container (c3), wherein the light impurity removing container (c1), the heavy impurity sieving container (c2) and the material receiving container (c3) are sequentially butted from top to bottom, and the top of the light impurity removing container (c1) is provided with a material inlet (c1 a);
bristles (c1.1) are densely distributed in the light impurity removing container (c1) in the circumferential direction, and an air inlet (c1b) is formed in the bottom of the side of the light impurity removing container (c 1);
a sieve plate (c2.1) is arranged in the heavy impurity sieving container (c2), and a material stirring unit (c2.2) is arranged on the sieve plate (c 2.1);
a central column (c1.2) is concentrically arranged in the light impurity removal container (c1), and the central column (c1.2) is fixedly connected with the inner wall of the light impurity removal container (c1) through a connecting rod (c 1.21); the root parts of the bristles (c1.1) are fixedly connected with the inner wall of the light impurity removal container (c1), and the bristles (c1.1) transversely extend towards the central column (c1.2) to enable the tips of the bristles to abut against the central column (c 1.2);
the small fan (c1.3) is arranged at the air inlet (c1 b); sieve pores (c2.10) are densely distributed on the sieve plate (c 2.1);
the material stirring unit (c2.2) comprises a material stirring rod (c2.22) driven by a motor (c2.21), the motor (c2.21) is installed at the bottom of the sieve plate (c2.1), the material stirring rod (c2.22) is transversely arranged at the top of the sieve plate (c2.1), and the material stirring rod (c2.22) is in friction fit with the top surface of the sieve plate (c2.1) or is in reserved micro clearance fit;
a through hole (c2.220) is transversely formed in the material poking rod (c2.22) in a penetrating manner;
the light impurity removing container (c1), the heavy impurity sieving container (c2) and the material receiving container (c3) are sequentially screwed.
7. A soil detection method according to claim 1, wherein: the blending device comprises a blending container (h1), the blending container (h1) is cylindrical and vertically arranged, the center of the top of the blending container is provided with a feeding port (h1a), and the bottom of the side of the blending container is provided with a discharging port (h1 b);
the device is characterized by further comprising a movable rod (h2), wherein the movable rod (h2) penetrates through a discharge port (h1b) and is inserted into a solution in the blending container (h1), the movable rod (h2) is of a hollow structure, the top end of the movable rod (h2) is in butt joint with an air supply pump (h5), the bottom end of the movable rod (h2) is in butt joint with a round box body (h6), and the round box body (h6) is provided with an air distribution hole (h60) and a stirring plate (h 61);
the device is characterized by further comprising a shaft movement driving mechanism (h3) and a turnover driving mechanism (h4), wherein the shaft movement driving mechanism (h3) drives the movable rod (h2) to drive the circular box body (h6) to move up and down, and the turnover driving mechanism (h4) drives the movable rod (h2) to drive the circular box body (h6) to rotate in the circumferential direction;
the plurality of air distribution holes (h60) are uniformly distributed on the surface of the round box body (h6), and the plurality of stirring plates (h61) are circumferentially arranged on the outer side surface of the round box body (h6) in an array manner;
a vertical support plate (h1.1) is arranged at the top of the blending container (h1), a vertical sliding rail (h1.2) is arranged on the vertical support plate (h1.1), and the axial movement driving mechanism (h3) comprises a vertical rack (h3.1) arranged on the vertical sliding rail (h1.2) and a vertical gear (h3.3) which is meshed with the vertical rack (h3.1) and driven by a servo motor (h3.2) arranged on the vertical support plate (h 1.1);
an L-shaped support plate (h1.3) is arranged at the back of the vertical rack (h3.1), a transverse bearing seat (h1.4) is arranged on the L-shaped support plate (h1.3), and the movable rod (h2) penetrates through the bearing seat (h 1.4); the turnover driving mechanism (h4) comprises an outer gear ring (h4.1) fixedly sleeved on the movable rod (h2) and a transverse gear (h4.3) which is meshed with the outer gear ring (h4.1) and driven by a motor (h4.2) arranged on the L-shaped supporting plate (h 1.3);
the discharge hole (h1b) is provided with a discharge valve (h1. b);
the blending container (h1) is supported by supporting feet (h10), and the supporting feet (h10) are positioned at the bottom or the side surface of the blending container (h 1).
8. The soil detection method according to claim 1, wherein: sampling, packaging and respectively marking soil bags to be detected, sequentially spreading, spreading and standing, and turning and stirring a plurality of gaps in the spreading and standing period; the materials are piled in a pointed cone shape after standing time, and inconsistent dryness in a long-term air-dried state is avoided.
9. The soil detection method according to claim 1, wherein: the lines are enclosed to form a closed area with a shape of a regular quadrangle or a regular triangle.
10. The soil detection method according to claim 1, wherein: preferably, the soil bags to be detected are sequentially spread and kept standing for 12 min.
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| CN113933092A (en) * | 2021-09-17 | 2022-01-14 | 江苏绿泰检测科技有限公司 | Comprehensive detection method and detection system for middle and lower layer soil |
| CN114047179A (en) * | 2021-09-26 | 2022-02-15 | 浙江亚凯检测科技有限公司 | Method and device for detecting soil organic matters in suspected contaminated area |
| CN115184221A (en) * | 2022-09-07 | 2022-10-14 | 合肥金星智控科技股份有限公司 | Automatic detection device for powder materials |
| CN115615741B (en) * | 2022-12-01 | 2023-03-10 | 江苏龙环环境科技有限公司 | Adjustable soil sampling device for environmental protection detection and use method thereof |
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