JP2022117928A - Intelligent collection and analysis device for integrated collection and analysis of underground water eluent - Google Patents

Abstract

To provide an intelligent collection and analysis device for automatically collecting and analyzing underground water eluent.SOLUTION: The device includes a collection tub, a protective net located on an upper part of the collection tub, a rotatable mechanism located on an upper part of the protective net, and a stirring mechanism connected to a lower part of the rotatable mechanism. A set of sampling pipes is provided on one side of an inner wall of an upper tub body. A peristaltic pump fixed on the inner wall of the upper tub body is provided in a center part of the sampling pipes. A filtration component is provided on the upper part of the collection tub. A liquid level sensor is provided in the center part on one side of the inner wall of the upper tub body. The liquid level sensor is connected to a controller on the top of a side wall of the upper tub body. The controller is electrically connected to the peristaltic pump through an electromagnetic relay. A water quality metal detector is provided on the bottom of the upper tub body.SELECTED DRAWING: Figure 2

Description

The present invention belongs to the field of groundwater dewatering analysis and measurement technology, and specifically relates to an intelligent collection and analysis device for collecting and analyzing groundwater dewatering in an integrated manner.

Groundwater leaching is a process in which groundwater dissolves, hydrates, hydrolyzes, and carbonates, and some components of the soil surface enter the water and are removed along with the water. to acidify. For example, in the upper part of the soil profile in humid areas, long-term water leaching from the surface to the bottom leaches out soluble material and fine soil particles in the upper soil layer, making the soil lighter and more grainy. , resulting in a layer of soil with high acidity and low fertility (leaching layer). The leaching layer is also called the A layer, and its poor condition can be improved by plowing and fertilization, especially the application of organic fertilizers and clay soil fertilizers.

However, in recent years, with the widespread production and use of chemical fertilizers, the loss of various nutrients in the soil has become more and more serious. , the agricultural land will lose nutrients, the efficiency of nutrient utilization will decrease, and at the same time, most of the leached elements will eventually enter the water environment, polluting surface water bodies such as rivers, rivers and lakes, and the most serious It is one of the sources of agricultural pollution and threatens the safety of drinking groundwater. Accurately collecting and monitoring groundwater dewatering is therefore of great importance for accurately analyzing soil nutrient balance, investigating nutrient cycling processes, and assessing environmental risks.

Currently, groundwater dewatering is generally collected by implanting a soil leaching sampler under the roots of soil crops and carrying research samples of the leaching liquid to the laboratory for detection.
The collection, movement and long-term exposure of the leaching liquid to air destroys its original state of existence and has certain effects on the measurement of elemental leaching. Chinese patent CN208579959U discloses an automatic monitoring device for farmland soil leaching liquid, including a leaching tray, an experimental bolt, a sample bolt, a water level sensor, a launch tube, an intake tube, a water pump and a motor, to facilitate automatic measurement of experiments and manual Leachate can be collected without the need for monitoring. However, it may cause sampling errors for long-term sampling, and real-time monitoring of leachate and soil cannot be realized.

SUMMARY OF THE INVENTION In view of the above problems, the present invention proposes an intelligent collection and analysis device for comprehensively collecting and analyzing groundwater dehydration.
The technical solutions of the present invention are as follows.
An intelligent collection and analysis device for comprehensively collecting and analyzing groundwater dewatering comprises a collecting trough, a protective net above the collecting trough, a rotating mechanism above the protective net and a lower part of the rotating mechanism. including a stirring mechanism connected to
The collecting tub is divided into an upper tub body and a lower tub body, and a set of sampling pipes is provided on one side of the inner wall of the upper tub body. A pump is provided, a filtration component is provided in the upper part of the collecting trough, a threaded trough is fixedly connected to the center inside the upper trough body, the upper part and the lower part of the threaded trough are connected to the upper part and the lower part of the upper trough body. is sealably connected in correspondence with
The rotating mechanism is provided with a housing fixedly connected to the protective net, an annular gear plate rotatably connected to the inside of the housing, and a rotating motor located on one side of the bottom inside the housing, wherein the annular A rack is provided on the inner wall of the gear plate, a first gear is meshed with the rack, an upper output end of the rotary motor is connected to the center of the first gear, and a sleeve rod is mounted at the center of the bottom of the annular gear plate. is fixedly provided, the sleeve rod is composed of an outer rod and an inner rod extending into the threaded tub, and a drill bit is provided at the bottom of the inner rod, and both sides of the upper end of the inner rod is provided with a strip-like projection movably engaged in a chute provided on the inner wall of said outer rod, and an outer wall at the center of said inner rod is provided with an external thread, said external thread being provided on the inner wall of said threaded tub. The outer wall of the inner rod between the lower part of said male thread and said drill bit and between the upper part of said male thread and said strip-like projection are all smooth surfaces, and the bottom of said inner rod is a threaded trough. extending from the lower tub to the inside of the lower tub,
The lower output end of the rotary motor is connected to an agitating mechanism for penetrating the bottom of the housing and turning the soil in the protective net, and the bottom of the lower tub body is provided with an opening for the drill bit to pass through. a collection plate is provided on the bottom of the lower tub body around the opening, an annular collection groove is provided on the outer end of the collection plate, and a gas pipeline is provided on one side of the inner wall of the upper tub body. ,
A liquid level sensor is installed at the center of one side of the inner wall of the upper tub body, the liquid level sensor is connected to a controller on the top of the side wall of the upper tub body, and the controller is electrically connected to the peristaltic pump. A water metal detector is installed at the bottom of the upper tub body, and the water metal detector is connected to the data collection system outside the collection tub to monitor the data such as the heavy metal content in the leachate in real time. can.

In one aspect of the present application, the upper end of the sampling pipe is connected to the collecting bolt outside the collecting trough, and the lower end of the sampling pipe is located at the bottom of the upper trough body and is in contact with the peristaltic pump of the sampling pipe. one part is a hose, the other part of the sampling pipe is a PE water supply pipe, the filtering component includes a steel wire net located on the upper surface of the upper tub body, and a layer of quartz sand under the steel wire net A layer of soft plastic filter net is provided under the quartz sand particles, and a hard plastic filter net is provided under the soft plastic filter net.
In the present application, the peristaltic pump collects the leaching liquid and multiple filtration enhances the filtration effect.

In one aspect of the present application, the annular gear plate includes an annular plate and a stationary plate positioned within and fixedly connected to the annular plate, the annular plate above the stationary plate being positioned on the inner top surface of the housing. A rack is provided on the inner wall of the annular plate below the fixed plate and is rotatably connected to an annular groove provided in the fixed plate.
In the present application, the sleeve rod and stirring mechanism are operated by rotating the annular gear plate by a set of rotary motors.
In one aspect of the present application, the bottom of the outer rod is provided with a restriction for stopping the strip-shaped projection, the upper half of the drill bit is a spiral steel plate, and the lower half of the drill bit is a diamond tip. .
In the present application, the setting of the restrictor prevents the inner rod from escaping from the outer rod due to too long a travel distance when it moves relative to the threaded trough, and conveys the soil into the lower trough body by means of the spiral steel plate. .

As one aspect of the present application, the central portion of the upper surface of the second gear provided in the stirring mechanism is connected to the lower output end of the rotary motor, and both sides of the second gear are meshed and connected. A driven gear is also provided at a location flush with the second gear symmetrically with respect to the sleeve rod with respect to the second gear, and three sets of driven gears are provided on the upper surfaces of the driven gears. 3, each central part is rotatably connected to the bottom part of said housing via a pair of connecting rods;
A gear crawler is provided outside the set of driven gears, and the three sets of driven gears are synchronously connected to a rack provided inside the gear crawler and are rotatably connected. No bulldozer plate is provided.
In the present application, the bulldozer plate is driven by the gear crawler to remove a portion of the soil in the protective net, and then replace the soil to prevent the leaching efficiency from being adversely affected by the reduced soil leaching capacity. do.

As a refinement of the present application, the top of the gas pipeline is connected to a dual-use fan outside the collecting trough, and the bottom of the gas pipeline is sealingly fixed between the upper and lower trough bodies. It is connected to a gas four-way valve, and three sets of gas conduits are branched from the gas four-way valve, the outlet of the first gas conduit leads to the bottom of the upper barrel body, and the outlet of the second gas conduit leads to the drill bit. , the outlet of the third gas conduit leads to said collecting groove.
In the present application, the first gas conduit is used to wash the inside of the upper tub body with high-temperature steam, the second gas conduit is driven by a dual-purpose fan to blow off the soil on the spiral steel plate and drop it into the collecting groove, and 3 gas conduit blows and collects the soil with a dual-use fan.

As one aspect of the above improvement, the collection plate is inclined downward from the center toward the periphery, and an annular groove is provided in the bottom of the collection plate, and the annular groove is provided with an annular protrusion provided on the bottom surface of the lower tub body. a roller motor for rotating the collecting plate, a roller motor being provided on the side of the third gas conduit near the collecting plate, a lower output end of the roller motor being connected to a roller for rotating the collecting plate; Friction of the plate causes the collecting plate to rotate along the annular groove, which is convenient for soil collection in the third gas conduit.

The invention has the following beneficial effects.
(1) The intelligent collection and analysis device for comprehensively collecting and analyzing groundwater dewatering of the present invention has a rational structure, convenient operation, and can automatically collect groundwater dewatering. , a liquid level sensor automatically triggers collection to record collection volume and collection rate, eliminating the need for manual activation, greatly increasing the convenience of the device.
(2) The intelligent collection and analysis device for integrated collection and analysis of groundwater dewatering of the present invention realizes the integration of sampling and detection by the water metal detector, and the trigger and stop of the peristaltic pump in one As a cycle, it automatically records the volume of the leaching solution and the content of elements such as heavy metals in the leaching solution.
(3) The intelligent collection and analysis device for comprehensively collecting and analyzing groundwater dewatering of the present invention, through the setting of the rotating mechanism, causes the built-in drill bit to collect the deep soil through the sleeve rod, The soil is sampled through a gas conduit to achieve soil sample collection and detection delivery, and simultaneous detection of groundwater heavy metal content and soil moisture above and below the device is useful for analyzing leaching discipline.
(4) The intelligent collection and analysis device for comprehensively collecting and analyzing groundwater dewatering of the present invention agitates the upper leached soil by setting the agitation mechanism, and exports a part of the soil in the protective net. , to further replace the soil to prevent the impact on the leaching liquid collection efficiency due to the reduced soil leaching capacity, if the leaching liquid is not collected for a long time or the interval is too long,
Start agitation to avoid clumping and drying out the soil.

It is a schematic diagram showing the external structure of the device of Example 1 of the present invention. FIG. 4 is a schematic diagram showing the internal structure of the collection tub on the side of the collection tube of the apparatus of Example 1 of the present invention; It is a schematic diagram showing the internal structure of the gas pipeline side collection tub of the apparatus of Example 1 of the present invention. FIG. 2 is a schematic diagram showing the rotating mechanism, stirring mechanism and sleeve rod structure of the device of Example 1 of the present invention; It is a schematic diagram showing the internal structure of the rotation mechanism and the stirring mechanism of the apparatus of Example 1 of the present invention. It is a schematic diagram showing the structure inside the housing of the apparatus of Example 1 of the present invention. FIG. 4 is a schematic diagram showing the annular gear plate structure of the device of Example 1 of the present invention; FIG. 2 is a schematic diagram showing the steel wire net structure of the device of Example 1 of the present invention; 1 is a schematic diagram showing the structure of a soft plastic filtering net of the device of Example 1 of the present invention; FIG. FIG. 2 is a schematic diagram showing the hard plastic filtering net structure of the device of Example 1 of the present invention; 1 is a schematic diagram showing the inner rod structure of the device of Example 1 of the present invention; FIG. FIG. 4 is a schematic diagram showing a roller motor and roller structure at point A in FIG. 3 ; Schematic which shows the internal structure of the rotation mechanism of Example 2 of this invention, and a stirring mechanism.

[Description of symbols]
1 Collection trough 11 Upper trough body 12 Lower trough body 121 Opening 122 Collection plate 123 Collection groove 124 Annular projection 125 Roller motor 126 Roller 13 Sampling pipe 14 Peristaltic pump 15 Steel wire net 16 Quartz sand particles 17 Soft plastic filtration net 18 Hard plastic filtration Net 19 Threaded Tub 2 Protective Net 3 Rotating Mechanism 31 Housing 311 Annular Groove 32 Annular Gear Plate 321 Annular Plate 322 Fixed Plate 33 Rotating Motor 34 First Gear 4 Stirring Mechanism 41 Second Gear 42 Driven Gear 43 Gear Crawler 44 Bulldozer Plate 5 Sleeve rod 51 Inner rod 511 Strip projection 512 External thread 52 Outer rod 521 Chute 522 Restriction 53 Drill bit 531 Spiral steel plate 532 Diamond tip 6 Gas pipeline 61 Dual purpose fan 62 Gas four-way valve 621 First gas conduit 622 second gas conduit 623 third gas conduit 7 liquid level sensor 8 controller 9 water metal detector

The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Terms such as “front and rear” and “left and right” used in the embodiments of the present invention are used for descriptive purposes only and indicate or imply the relative importance or position of the technical features shown. cannot be understood to imply

Example 1
As shown in FIGS. 1 and 2, an intelligent collection and analysis device for integrated collection and analysis of ground water dewatering comprises a collection trough 1, a protective net 2 located above the collection trough 1,
Including a rotating mechanism 3 located above the protective net 2 and a stirring mechanism 4 connected to the lower part of the rotating mechanism 3,
As shown in FIGS. 2, 8 to 10, the collection tub 1 is divided into an upper tub body 11 and a lower tub body 12, and a set of sampling pipes 13 is provided on one side of the inner wall of the upper tub body 11. A peristaltic pump 14 fixed to the inner wall of the upper tub main body 11 is provided at the center of the collection tub 1. The peristaltic pump 14 is a commercially available speed-regulating peristaltic pump whose external structure is adjusted to match the collection tub 1. , the upper end of the sampling pipe 13 is connected to the collection bolt outside the collection tub 1, the lower end of the sampling pipe 13 is located at the bottom of the upper tub main body 11, and the portion of the sampling pipe 13 in contact with the peristaltic pump 14 is a hose. , the other part of the sampling pipe is a corrosion-resistant PE water supply pipe, a filtering component is provided on the upper part of the collecting tub 1, the filtering component includes a steel wire net 15 located on the upper surface of the upper tub body 11, and a steel wire net 1
5, a layer of quartz sand particles 16 is provided, a layer of soft plastic filtering net 17 is provided below the quartz sand particles 16, and a hard plastic filtering net 18 is provided below the soft plastic filtering net 17. , the upper part of the collection trough 1 is provided with a filtration component, the upper part of the upper trough body 11 is centrally connected with a threaded trough 19, the upper part of the threaded trough 19;
The lower part is connected to the upper part and the lower part of the upper tub body 11 in a sealable manner,
As shown in FIGS. 4-7, the rotating mechanism 3 consists of a housing 3 fixedly connected to the protective net 2 .
1, including an annular gear plate 32 rotatably connected inside the housing 31, and a rotary motor 33 located on one side of the inner bottom of the housing 31, the rotary motor 33 being a commercially available dual output shaft three-phase The external structure of the asynchronous motor is adjusted to match the rotating mechanism 3. A rack is provided on the inner wall of the annular gear plate 32, and a first gear 34 is provided in the rack so as to mesh with it. The output end is connected to the center of the first gear 34, and the annular gear plate 32 includes an annular plate 321 and a fixed plate 322 disposed inside and fixedly connected to the annular plate 321, and positioned above the fixed plate 322. The annular plate 321 is rotatably connected to an annular groove 311 provided in the inner top surface of the housing 31 , and the annular plate 32 is held by the annular groove 311 .
1, a rack is installed on the inner wall of the annular plate 321 located below the fixed plate 322, a sleeve rod 5 is fixedly installed in the center of the bottom of the fixed plate 322 of the annular gear plate 32, and the sleeve The rod 5 is constructed by fitting an outer rod 52 and an inner rod 51 extending into the threaded tub 19. A drill bit 53 is provided at the bottom of the inner rod 51. On both sides of the upper end of the inner rod 51, A strip-like projection 511 is provided movably engaged with a chute 521 provided on the inner wall of the outer rod 52 , and an external thread 512 is provided on the outer wall of the central portion of the inner rod 51 , the external thread 512 extending through the inner wall of the threaded tub 19 . The outer wall of the inner rod 51 between the lower part of the male thread 512 and the drill bit 53 and the male thread 5
There is a smooth surface between the top of 12 and the strip-like projections 511, the bottom of the inner rod 51 extends from the threaded tub 19 into the lower tub body 12, and the bottom of the outer rod 52 has strip-like projections 511. A restricting portion 522 is provided for stopping, and the restricting portion 522 restricts the chute 5
21 is filled and plugged to prevent the strip-like projection 511 from sliding along the chute 511 excessively and separating the inner rod 51 from the outer rod 52, leaving the top half of the drill bit 53 in the soil. a spiral steel plate 531 for accumulating samples, the lower half of the drill bit 53 is a diamond tip 532,
As shown in FIGS. 4, 5 and 11, the lower output end of the rotary motor 33 penetrates through the bottom of the housing 31 and is connected to the stirring mechanism 4 for turning the soil in the protective net 2 . The center of the upper surface of the second gear 41 is connected to the lower output end of the rotary motor 33, and the second
A pair of driven gears 42 are provided on both sides of the gear 41 of the second
The second gear 41 is symmetrical with respect to the sleeve rod 5, and a driven gear 42 is also provided at a location flush with the second gear 41. A gear crawler 43 is rotatably connected to the bottom of the housing 31 and outside the three sets of driven gears 42 .
are provided, and three sets of driven gears 42 are engaged with and rotatably connected to racks provided inside gear crawlers 43, and four sets of bulldozer plates are mounted on the outside of gear crawlers 43 at equal intervals. 44 is provided, gear crawler 43 and bulldozer plate 44
is made of steel material;
As shown in FIGS. 3 and 12, an opening 121 is provided in the bottom of the lower tub body 12 for the drill bit 53 to pass through, and the bottom of the lower tub body 12 around the opening 121 is provided with the collection plate 1 .
22 , the outer end of the collecting plate 122 is provided with an annular collecting groove 123 , the inner wall of the upper tub body 11 is provided with a gas pipeline 6 , and the top of the gas pipeline 6 is outside the collecting tub 1 . Connected to a dual-use fan 61, the bottom of the gas pipeline 6 is connected to a gas four-way valve 62 sealed and fixed between the upper barrel body 11 and the lower barrel body 12, and the gas four-way valve 62 is commercially available. The gas four-way valve 62 is branched into three sets of gas pipes, and the first gas pipe 621 is connected to the bottom of the upper barrel body 11. , a second gas conduit 622 leads to the drill bit 53, a third gas conduit 623 leads to the collection groove 123, the collection plate 122 slopes downward from the center to the periphery, and the bottom of the collection plate 122 An annular groove is provided, which rotates the collecting plate 122 together with an annular projection 124 provided on the bottom surface of the lower tub body 12, and the third gas conduit 6
A roller motor 125 is provided on the side of 23 near the collecting plate 122, and the roller motor 125 is a commercially available horizontal gear reduction motor whose external structure is adjusted to the above apparatus. The ends are connected to rollers 126 for rotating the collecting plate 122 .
As shown in FIG. 2, a liquid level sensor 7 is provided in the central part of one side of the inner wall of the upper tub body 11, and the position of the liquid level sensor 7 is adjusted to the position of 300 mL of leached solution in the upper tub body 11, The liquid level sensor 7 is a commercially available infrared liquid level sensor whose external structure is adjusted to match the upper tub main body 11. The liquid level sensor 7 is connected to the controller 8 located at the top of the side wall of the upper tub main body 11. The controller 8 is a commercially available S7-400 PLC controller, and the controller 8 is electrically connected to the peristaltic pump 14 through an electromagnetic relay to control the on/off of the peristaltic pump 14 and the upper tub body 11. A water metal detector 9 is provided at the bottom, the water metal detector 9 is a commercially available portable water heavy metal detector for HM5000P, and the water metal detector 9 is connected to a data collection system outside the collection tub 1. be.
The operating principle and method of collecting groundwater dewatering by applying the intelligent collecting and analyzing device for collecting and analyzing the above-mentioned groundwater dewatering in an integrated manner are as follows.
This device is embedded in the soft and permeable soil of farmland, and the protective net 2 is placed 40c from the ground.
m sites and after debugging the device, the excavated soil is put back in place and the collection and analysis of the ground water dewatering begins.

The principle of operation of peristaltic pump 14 is as follows.
When the dewatered groundwater is leached from the upper soil, it is sequentially filtered through the quartz sand particles 16, the soft plastic filtering net 17, and the hard plastic filtering net 18, and then enters the upper tub main body 11, where the liquid level rises. Immediately after reaching the height of the surface sensor 7 and detecting the leaching of the liquid surface sensor 7, a signal is sent to the controller 8, and the controller 8 controls the electromagnetic relay to operate the peristaltic pump 1
4 is opened, the opening time of the peristaltic pump 14 is preset, and the peristaltic pump 14 is opened 3 times within the set time.
After transporting 00 mL of leaching liquid to the collection bolt on the ground, the controller 8 closes the peristaltic pump 14 through the electromagnetic relay to complete the transportation of the leaching liquid, and at the same time the data collection system on the ground can The collection time is recorded, the leaching rate is calculated, and the metal element content of the leaching liquid is immediately monitored by the water quality metal detector 9. When the liquid is leached out and the liquid level reaches the level of the liquid level sensor 7 again, the above process is repeated to carry out the next transportation.

The operating principle of the rotating mechanism 3 is as follows.
When the soil below the collection trough 1 needs to be sampled to compare and analyze the content of groundwater heavy metals and soil humidity above and below the device, the rotary motor 33 rotates the upper first gear 34 clockwise. When the first gear 34 rotates, the annular gear plate 32 meshed with it rotates clockwise along the annular groove 311, and the sleeve rod 5 provided in the middle of the fixed plate 322 at the center of the annular gear plate 32 rotates. When the peristaltic pump 14 completes one cycle of turning on and off, the rotating mechanism 3 is turned on to perform one soil sampling to measure the water quality above and below the collection trough 1 and the metal in the soil. Compare the element content, etc.
The working principle of the sleeve rod 5 is as follows.
When the sleeve rod 5 rotates clockwise, the male thread 512 provided in the center of the inner rod 51 engages with the female thread provided in the threaded tub 19 and rotates, causing the inner rod 51 to rotate along the threaded tub 19. While moving downward, the strip-like projection 511 provided at the upper end of the inner rod 51 slides in the chute 521 of the outer rod 52, and the inner rod 51 moves downward along the outer rod 52, and at the same time , the drill bit 53 rotates through the opening 121 into deeper soil below until the strip-like projection 511 contacts the restrictor 522, at which time the rotary motor 33 reverses and the upper first gear 34 is rotated counterclockwise, and when the first gear 34 rotates, the annular gear plate 32 meshed with it rotates counterclockwise around the annular groove 311, and the sleeve rod 5 also rotates counterclockwise synchronously. The inner rod 51 then moves upward along the threaded trough 19 and the outer rod 52 to its original position, at which time the collected soil on the spiral steel plate 531 accumulates.

The operating principle of the gas pipeline 6 is as follows.
Open the valve of the second gas conduit 622 on the gas four-way valve 62 and turn on the dual-use fan 61 to blow air through the second gas conduit 622 to collect the soil accumulated on the spiral steel plate 531. 623, open the valve of the third gas conduit 623 on the gas four-way valve 62, and turn on the dual-use fan 61 to turn on the third gas conduit 6.
23 to suck and collect the soil, while turning on the roller motor 125 to rotate the roller 126, which rubs against the collecting plate 122 while rotating to rotate the collecting plate 122 along the annular groove. and rotate once to suck and collect all the soil in the collection groove 123, open the valve of the first gas conduit 621 on the gas four-way valve 62,
At the same time, hot steam is injected into the first gas conduit 621 to wash the inside of the upper tub body 11 .
The operating principle of the stirring mechanism 4 is as follows.
When the rotation mechanism 3 operates, the rotation motor 33 rotates the second gear 41 below it,
The driven gears 42 on both sides of the second gear 41 are rotated to move the gear crawler 43 three times.
At the same time as rotating around the set of driven gears 42, the bulldozer plate 44 agitates the soil inside the protective net 2, and also replaces the soil, so as to reduce the adverse effects on the collection efficiency of the leachate due to the deterioration of the soil leaching capacity. To prevent, or if the water content or porosity in the soil is too high, the agitation mechanism can be manually opened to agitate and replace the soil.

Example 2
Unlike Embodiment 1, in this embodiment, the second gear 41 is omitted, and one set of driven gears 42 is directly driven and rotated by the rotary motor 33 .
As shown in FIG. 13, the lower output end of the rotary motor 33 penetrates the bottom of the housing 31 and is connected to the agitating mechanism 4 for turning the soil in the protective net 2 . Gears 42 are provided, the center of the upper surface of one set of driven gears 42 is connected to the lower output end of the rotary motor 33, and the centers of the upper surfaces of the other two sets of driven gears 42 form a set of connecting rods. A gear crawler 43 is provided outside three sets of driven gears 42 , and the three sets of driven gears 42 mesh with a rack provided inside the gear crawlers 43 to synchronize. Four sets of bulldozer plates 44 are provided at equal distances outside the gear crawlers 43 of each stage, and both the gear crawlers 43 and the bulldozer plates 44 are made of steel material.

Example 3
This embodiment differs from the first embodiment in the setting position and the number of set sets of the driven gear 42 .
The lower output end of the rotary motor 33 penetrates the bottom of the housing 31 and is connected to the stirring mechanism 4 for turning the soil in the protective net 2 . The center is connected to the lower output end of the rotary motor 33, and a pair of driven gears 42 are provided on both sides of the second gear 41 and meshingly connected therewith, with respect to the second gear 41 against the sleeve rod 5. Two pairs of driven gears 42 are also provided at locations that are symmetrical and flush with the second gear 41 .
The center of the upper surface of the set of driven gears 42 is rotatably connected to the bottom of the housing 31 through a set of connecting rods, the gear crawler 43 is provided outside the four sets of driven gears 42, and the four sets of driven gears 42 meshes with a rack provided inside the gear crawler 43 and is rotatably connected in synchronization with each other. Both bulldozer plates 44 are formed of steel material.

Comparative example 1
Unlike Example 1, in this comparative example, the second gear 41 of the stirring mechanism 4 is not driven to rotate by the lower output end of the rotary motor 33, but is driven by a single set of motors to rotate. do.

Comparative example 2
Unlike Example 1, the stirring mechanism 4 is not provided in this comparative example.
Experimental example 1
In one sampling cycle (3
00 ml of leaching liquid) was stirred using the stirring mechanism 4 to stir the soil above the collection device, and the number of stirring times was set to 0
The effect of the number of stirring times on the leaching efficiency was investigated by observing the leaching time of 300 ml of the leaching liquid under different stirring times, with one turn of the gear crawler 43 being increased from 1 to n times. get.
The stirring timing is determined according to the time of the previous sampling cycle, and if the time of the _first sampling cycle is t1, the stirring timing at the time of the second sampling is 1/
If the time of the second sampling cycle is set to 2t ₁ and the time of the second sampling cycle is t ₂ , the stirring timings during the third sampling are set to 1/3t ₂ and 2/3t ₂ respectively, and so on.
Among them, in Comparative Example 2, since the stirring mechanism 4 was not provided, the number of times of stirring was set to 0, and the experimental results are shown in Table 1.
Table 1 Leaching time under different stirring times in Examples 1-3 and Comparative Examples 1 and 2

As can be seen from the table above, each set of data shows the following effects. Agitation of the soil can promote the flow of water in the soil and the flow between the soils, shorten the leaching time and increase the leaching rate,
With an increase in the number of stirring times, the shorter the leaching time, the faster the leaching rate, and the effect of increasing the leaching rate by stirring 6 or 7 times is not obvious, which is beneficial to the water flow in the soil with proper stirring. The most preferable number of times of stirring is 5 times.
As can be seen by comparing the first and second embodiments, in the second embodiment, the second gear 41 is omitted, and one set of the driven gears 42 therein is directly driven and rotated by the rotary motor 33. Although the entire device structure can be simplified by omitting the structure of the device, it has a certain effect on the stirring effect, and the effect of improving the leaching rate is lower than in Example 1. Therefore, in Example 1, the second gear Rotating the driven gear 42 by 41 promotes the improvement of the leaching efficiency.
As can be seen by comparing Example 1 and Example 3, in Example 3, three sets of driven gears 42 are provided in a rectangular shape, so that the stirring effect can be improved to some extent in a short time, and the leaching efficiency can be increased. The leaching efficiency of Example 3 is higher than that of Example 1 when only one stirring is performed. , the leaching efficiency of Example 3 is lower than that of Example 1 when stirred 7 times.
As can be seen by comparing Example 1 and Comparative Example 1, both structures are the same and only the driving method is different, so there is almost no difference in the effect on the leaching efficiency, and in Comparative Example 1, one set of motors is added. Therefore, the narrow leaching space inevitably becomes narrower, so the leaching amount also decreases to some extent, which indirectly reduces the leaching efficiency. and the stirring mechanism 4 are driven at the same time.
As can be seen by comparing Example 1 and Comparative Example 2, in Comparative Example 2, since the upper soil cannot be agitated, water flow in the soil cannot be promoted, and the leaching efficiency is relatively lower than that of Example 1.

Example 4
In this embodiment, the setting position of the liquid level sensor 7 on the upper tub main body 11 is different from that in the first embodiment.
As shown in FIG. 2, a liquid level sensor 7 is provided at the center of one side of the inner wall of the upper tub body 11, and the position of the liquid level sensor 7 is adjusted to the position of 450 mL of the leached solution in the upper tub body 11, The liquid level sensor 7 is a commercially available infrared liquid level sensor whose external structure is adjusted to match the upper tub main body 11. The liquid level sensor 7 is connected to the controller 8 located at the top of the side wall of the upper tub main body 11. be done.
Example 5
In this embodiment, the setting position of the liquid level sensor 7 on the upper tub main body 11 is different from that in the first embodiment.
As shown in FIG. 2, a liquid level sensor 7 is provided at the center of one side of the inner wall of the upper tub body 11, and the position of the liquid level sensor 7 is adjusted to the position of 600 mL of the leached solution in the upper tub body 11, The liquid level sensor 7 is a commercially available infrared liquid level sensor whose external structure is adjusted to match the upper tub main body 11. The liquid level sensor 7 is connected to the controller 8 located at the top of the side wall of the upper tub main body 11. be done.
An appropriate height of the liquid level sensor 7 may be set according to the type of soil to be measured, the magnitude of the permeation rate, and the permeation speed.

Experimental example 2
Measurement experiments were performed on the leaching liquid collection and analysis devices of Examples 1, 4 and 5, and they were embedded in soil containing groundwater and having certain heavy metal contamination. First, the leaching rate of groundwater was observed, and Table 2 shows the measurement results.
Table 2 Leaching rate in Examples 1, 4 and 5

As can be seen from the above table, the leaching rate of the three sets of examples is different, under similar weather conditions, the smaller the volume of the leaching liquid, the faster the leaching rate, and the larger the volume of the leaching liquid, the slower the leaching rate. This indicates that the leaching rate is high at the beginning of the leaching, and with the passage of time in the absence of agitation, rainfall or other treatments, the leaching rate of the continuous leaching tends to decrease.

Example 6
In this embodiment, the set number of bulldozer plates 44 is different from that in the first embodiment.
A gear crawler 43 is provided outside the three sets of driven gears 42, and the three sets of driven gears 42 mesh with racks provided inside the gear crawlers 43 and are rotatably connected in synchronization with each stage of the gear crawler. Six sets of bulldozer plates 44 are provided at equal intervals on the outside of 43,
Both the gear crawler 43 and the bulldozer plate 44 are made of steel material.

Example 7
In this embodiment, the set number of bulldozer plates 44 is different from that in the first embodiment.
A gear crawler 43 is provided outside the three sets of driven gears 42, and the three sets of driven gears 42 mesh with racks provided inside the gear crawlers 43 and are rotatably connected in synchronization with each stage of the gear crawler. 8 sets of bulldozer plates 44 are provided at equal intervals on the outside of 43,
Both the gear crawler 43 and the bulldozer plate 44 are made of steel material.
Too many sets or too few sets of bulldozer plates 44 are undesirable. Too many sets affect the rotation of the gear crawler 43, and too few sets set the soil agitation effect. Therefore, the four sets in Example 1 are optimal.

Claims (7)

A collecting trough (1), a protective net (2) located above said collecting trough (1), a rotating mechanism (3) located above said protecting net (2), and said rotating mechanism (3). a stirring mechanism (4) connected to the bottom of the
Said collecting trough (1) is divided into an upper trough body (11) and a lower trough body (12), one side of the inner wall of said upper trough body (11) is provided with a set of sampling pipes (13), said sampling A peristaltic pump (14) fixed to the inner wall of the upper trough body (11) is provided in the central part of the pipe (13), a filtering component is provided in the upper part of the collection trough (1), and the upper trough body (11) is A threaded tub (19) is fixedly connected to the center of the interior, and the upper and lower portions of the threaded tub (19) are correspondingly and sealably connected to the upper and lower portions of the upper tub body (11),
The rotating mechanism (3) includes a housing (3) fixedly connected to the protective net (2).
1), an annular gear plate (32) rotatably connected inside said housing (31);
and a rotary motor (33) located on one side of the bottom inside the housing (31), a rack is provided on the inner wall of said annular gear plate (32), and said rack is equipped with a first gear (34).
) are meshed, the upper output end of the rotary motor (33) is connected to the center of the first gear (34), and the sleeve rod (5) is fixed to the center of the bottom of the annular gear plate (32). The sleeve rod (5) is composed of an outer rod (52) and an inner rod (51) extending into the threaded tub (19), and a drill bit at the bottom of the inner rod (51). (53) are provided, and on both sides of the upper end of the inner rod (51), the outer rod (
52) movably engaged in a chute (521) provided on the inner wall of
511) is provided, and an external thread (512) is provided on the central outer wall of the inner rod (51),
The male thread (512) is engaged with a female thread provided on the inner wall of the threaded tub (19),
Between the lower part of said external thread (512) and said drill bit (53) and external thread (512)
The outer wall of the inner rod (51) between the top of the strip-like projection (511) is smooth surface, and the bottom of the inner rod (51) extends from the threaded trough (19) into the lower trough body (12). stretched to
The lower output end of the rotary motor (33) is connected to a stirring mechanism (4) through the bottom of the housing (31) for turning the soil in the protective net (2), and the lower tub body (12) )
is provided with an opening (121) for the drill bit (53) to pass through, and a collecting plate (122) is provided at the bottom of the lower tub body (12) around the opening (121), and the An annular collecting groove (123) is provided on the outer end of the collecting plate (122), and a gas pipeline (6) is provided on one side of the inner wall of the upper barrel body (11),
A liquid level sensor (7) is provided at the center of one side of the inner wall of the upper tub body (11), and the liquid level sensor (7) is connected to the controller (8) at the top of the side wall of the upper tub body (11). connected, the controller (8) is electrically connected to the peristaltic pump (14), the upper tub body (
11) is provided with a water metal detector (9) at the bottom, and the water metal detector (9) is located in the collection tub (
1) connected to an external data acquisition system;
An intelligent collection and analysis device for comprehensively collecting and analyzing groundwater dewatering, characterized by: The upper end of the sampling pipe (13) is connected to the collecting bolt outside the collecting tub (1), the lower end of the sampling pipe (13) is located at the bottom of the upper tub body (11), and the sampling pipe (13) is The part in contact with the peristaltic pump (14) is a hose, the other part of the sampling pipe (13) is a PE water supply pipe, and the filtering component is steel located on the upper surface of the upper tub body (11). A wire net (15), with a layer of quartz sand grains (16) under the steel wire net (15), and a layer of soft plastic filtering net (17) under the quartz sand grains (16). 2. A device according to claim 1, characterized in that a hard plastic filter net (18) is provided below the soft plastic filter net (17). Said annular gear plate (32) comprises an annular plate (321) and a fixed plate (322) located inside and fixedly connected to said annular plate (321), and an annular plate above said fixed plate (322). (321) is rotatably connected to an annular groove (311) provided on the inner top surface of the housing (31), and a rack is provided on the inner wall of the annular plate (321) below the fixed plate (322). 2. The device of claim 1, wherein the device comprises: The bottom of the outer rod (52) is provided with a limiting part (522) for stopping the strip-shaped projection (511), and the upper half of the drill bit (53) is a spiral steel plate (531).
), and the lower half of the drill bit (53) is a diamond tip (532). . The central part of the upper surface of the second gear (41) provided in the stirring mechanism (4) is connected to the lower output end of the rotary motor (33), and both sides of the second gear (41) is provided with a set of driven gears (42) respectively meshingly connected to the second gear (41), symmetrical with respect to said sleeve rod (5) and flush with said second gear (41) also driven gear (4
2) is provided, the center of the upper surface of the three sets of driven gears (42) is rotatably connected to the bottom of the housing (31) through a set of connecting rods, respectively, and three sets of driven gears ( 42
A gear crawler (43) is provided on the outside of the gear crawler (43), and three sets of driven gears (42) mesh with a rack provided on the inside of the gear crawler (43) and are synchronously rotatably connected to the gear crawler ( 2. Device according to claim 1, characterized in that a plurality of bulldozer plates (44) are provided equidistantly on the outside of 43). The top of said gas pipeline (6) is a dual-use fan (61) outside said collecting trough (1).
), and the bottom of the gas pipeline (6) is connected to the upper barrel body (11) and the lower barrel body (12
), the gas four-way valve (62) is branched into three sets of gas conduits, the outlet of the first gas conduit (621) is upward Tub body (1
1) and the outlet of the second gas conduit (622) is connected to said drill bit (53).
) and the outlet of the third gas conduit (623) leads to said collection groove (123),
2. A device according to claim 1, characterized in that: The collecting plate (122) slopes downward from the center to the periphery, and the collecting plate (122)
122) is provided with an annular groove, said annular groove rotates the collection plate (122) together with the annular projection (124) provided on the bottom surface of the lower tub body (12), and the said third gas conduit (
623) is provided with a roller motor (125) on the side closer to the collecting plate (122), and the lower output end of said roller motor (125) is connected to a roller (126) for rotating the collecting plate (122). 7. Apparatus according to claim 6, characterized in that:

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