CN113189144A

CN113189144A - Soil pollution detection device based on TDR sensor

Info

Publication number: CN113189144A
Application number: CN202110442025.7A
Authority: CN
Inventors: 杨策; 吴剑军; 李伟; 张京旭; 赖珂珂
Original assignee: Hangzhou Puyuan High Tech Co Ltd; Zhejiang Lvnong Ecological Environment Co Ltd
Current assignee: Hangzhou Puyuan High Tech Co Ltd; Zhejiang Lvnong Ecological Environment Co Ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-07-30

Abstract

The application discloses soil pollution detection device based on TDR sensor, including the TDR sensor, still include mounting platform, bracing piece and telescopic link, mounting platform passes through the unsettled installation of bracing piece is on the ground, the TDR sensor passes through the telescopic link telescopically to be installed on mounting platform, and the telescopic link runs through mounting platform perpendicularly. The invention has the following beneficial effects: by adopting the TDR sensor, when the muck truck runs to the position below the mounting platform, non-contact detection of soil in the muck truck can be realized, and the soil is prevented from being transported away in a polluted state; the risk that the contaminated engineering muck enters circulation can be obviously reduced, and the overall process control level of the engineering muck quality is improved.

Description

Soil pollution detection device based on TDR sensor

Technical Field

The invention relates to the field of soil pollution monitoring, in particular to a soil pollution detection device based on a TDR sensor.

Background

In recent years, urban construction projects are numerous, engineering dregs are produced annually in hundreds of millions of tons, and a large amount of engineering dregs are transported to surrounding cities through a canal transfer wharf for disposal. The engineering dregs transferred by the wharf have large flow, come from different construction sites, have complex soil quality and components, and are few to excavate dregs from industrial left-over sites to contain pollutants, so that if the engineering dregs enter a circulation link, secondary environmental pollution is easily caused, and the pollution is difficult to control.

Disclosure of Invention

The invention provides a soil pollution detection device based on a TDR sensor aiming at the problems.

The technical scheme adopted by the invention is as follows:

the utility model provides a soil pollution detection device based on TDR sensor, includes the TDR sensor, still includes mounting platform, bracing piece and telescopic link, mounting platform passes through the bracing piece is unsettled to be installed on the ground, the TDR sensor passes through the telescopic link telescopically and installs on mounting platform, and the telescopic link runs through mounting platform perpendicularly.

This kind of device is through adopting the TDR sensor, when the dregs car traveles to the mounting platform below, just can realize the non-contact detection to soil in the dregs car, avoids soil to be carried away under contaminated state.

Optionally, the rain shed and the escalator are further included, the rain shed is arranged on the mounting platform and used for covering the mounting platform, the escalator is arranged on the mounting platform, and the escalator is arranged on one side of the mounting platform.

The canopy is used for covering and preventing rain and snow from damaging various devices, and the escalator walking board is a platform convenient for workers to mount up and down.

Optionally, the telescopic rod further comprises a frame, a sliding block and a lead screw, wherein the sliding block is slidably mounted in the frame, the lead screw is rotatably mounted in the frame, the sliding block and the lead screw are matched together, and the telescopic rod is fixed on the sliding block; when the lead screw rotates, the sliding block drives the telescopic rod to move.

The telescopic rod is moved through the screw rod, so that the operation is more convenient and accurate, and the control is convenient.

Optionally, still include the shower nozzle, the shower nozzle sets up on the frame, the spout of shower nozzle orientation the telescopic link, the shower nozzle has a plurality ofly, the shower nozzle centers on the telescopic link is the symmetric distribution, the shower nozzle is used for spraying liquid.

Because the dregs car can produce the raise dust when clearing away the dregs, and the raise dust can cover on the TDR probe, and in case the raise dust covers on the TDR probe, can lead to the TDR probe can't detect, so around telescopic link symmetric distribution shower nozzle, when the telescopic link takes the TDR probe to be close to the shower nozzle, erupt water or liquid in the shower nozzle, these water sprays when the telescopic link, can wash the TDR probe, can avoid the deposition on the TDR probe like this, the detectivity and the precision that keep the TDR probe.

Optionally, the shower nozzle further comprises an air pipe, the air pipe is fixed in the frame, and an air outlet of the air pipe faces the shower nozzle.

Because the shower nozzle is when the water spray, water can not spout completely to TDR probe department, so set up the tuber pipe, the direction of blowing perpendicular to shower nozzle of tuber pipe, when wasing the TDR probe like this, the shower nozzle is opened simultaneously with the tuber pipe, the wind that the tuber pipe blew out combines shower nozzle spun air current, can form one slope and blow to the aqueous vapor bubble flow of TDR probe, water is pressing from both sides miscellaneous bubble impact TDR probe, can play quick clean effect to the TDR probe like this, clean effect is better simultaneously. Simultaneously because clean after the TDR probe, because the air-out orientation of tuber pipe is on a parallel with the telescopic link, open the tuber pipe again after clean TDR probe like this, the tuber pipe can form one air current by TDR probe week edge like this, can utilize the air current to weather the TDR probe fast.

Optionally, the bracing piece has many, and the bracing piece is the rectangle and distributes, all is provided with laser range finder on the every bracing piece, and all laser range finders equal apart from mounting platform's distance.

Because the bracing piece is the rectangle and distributes, when the dregs car drives into this rectangle like this, after the dregs car parks, set up the distance that laser range finder on the bracing piece can real-time measurement and dregs car hopper edge again, because laser range finder's measurement accuracy is very high, can detect at any time and the distance of goods fill edge, can real-time supervision goods fill the small change, can real-time supervision goods fill small deformation like this, if the goods fill is in the state that takes place the expansion ceaselessly, can prove that the goods fill of dregs car has taken place the phenomenon of transshipping at this moment, need in time to handle, otherwise the accident that the goods fill was scattered the frame can appear in the high probability.

Optionally, the dust detection device further comprises a dust detector, and the dust detector is arranged on the mounting platform.

The dust detector is arranged for monitoring whether measures (such as water spraying or green screen cloth covering) for suppressing dust emission are taken when the muck truck is used for cleaning muck, and if the dust detector monitors that the dust exceeds the standard, the measures for suppressing the dust are required.

Optionally, the wind speed measuring device further comprises a gas humidity sensor and a wind speed measuring sensor, wherein the gas humidity sensor and the wind speed measuring sensor are arranged on the mounting platform.

The gas humidity sensor and the wind speed sensor are arranged for monitoring the wind speed and the humidity of the air, if the dust detector detects that the dust does not exceed the standard, the gas humidity sensor detects that the humidity of the air is relatively low, and the wind speed sensor detects that the wind speed is relatively large, and the dust raising prevention measures are still needed to be taken for the cargo hopper of the muck truck. Because in dry windy weather, even the goods fill of dregs car has covered the green screen cloth and also still has produced the raise dust phenomenon easily.

Optionally, still include computer and human infrared inductor, human infrared inductor sets up on mounting platform, dust detector, gas humidity transducer, wind speed measurement sensor and human infrared inductor all with computer electricity hookup.

Because whole device is the need people to stand on mounting platform occasionally, but if the people stands in the windy weather when operation platform very easily by the raise dust of dregs car and causes the upper cover, so set up human infrared inductor, if it has the raise dust to detect when dust detector, wind speed measurement sensor surveys when the wind speed is great relatively this moment, it is the operation of unsuitable people standing on mounting platform this moment, so the people stands on mounting platform occasionally, human infrared inductor can sense, the computer can in time sense like this, can let the computer in time send the warning, avoid personnel to stand on mounting platform and receive the dust injury.

Optionally, the support rod assembly further comprises a wagon balance, and the wagon balance is arranged between the support rods.

The weighbridge is used for detecting the weight of the slag car and detecting whether the slag car is overloaded or not.

The invention has the beneficial effects that: by adopting the TDR sensor, when the muck truck runs to the position below the mounting platform, non-contact detection of soil in the muck truck can be realized, and the soil is prevented from being transported away in a polluted state; the risk that the contaminated engineering muck enters circulation can be obviously reduced, and the overall process control level of the engineering muck quality is improved.

Description of the drawings:

FIG. 1 is a schematic diagram of a soil pollution detection device based on a TDR sensor;

FIG. 2 is a simplified schematic diagram of a TDR sensor mounting configuration;

fig. 3 is a schematic diagram of the connection relationship between the computer and each detection original.

The figures are numbered: 1. a canopy; 2. mounting a platform; 3. a staircase walking board; 4. a laser range finder; 5. a support bar; 6. a wagon balance; 7. a frame; 8. a lead screw; 9. a slider; 10. a telescopic rod; 11. a nozzle; 12. a spray head; 13. a TDR sensor; 14. a computer; 15. a dust detector; 16. a human body infrared sensor; 17. a wind speed sensor; 18. a gas humidity sensor 19, a servo motor; 20. a belt drive assembly.

The specific implementation mode is as follows:

the present invention will be described in detail below with reference to the accompanying drawings.

As shown in attached

drawings

1, 2 and 3, a soil pollution detection device based on TDR sensor 13, including TDR sensor 13, still include mounting platform 2, bracing piece 5 and telescopic link 10, mounting platform 2 is unsettled to be installed on the ground through bracing piece 5, and TDR sensor 13 passes through telescopic link 10 and telescopically installs on mounting platform, and telescopic link 10 runs through mounting platform 2 perpendicularly.

This kind of device just can realize the non-contact detection to soil in the dregs car through adopting TDR sensor 13, when the dregs car traveles to mounting platform 2 below, avoids soil to be carried away under contaminated state.

As shown in attached

drawings

1, 2 and 3, the rain shed-type escalator installation platform further comprises a rain shed 1 and an escalator walking board 3, wherein the rain shed 1 is arranged on the installation platform 2, the rain shed 1 is used for covering the installation platform 2, the escalator walking board 3 is arranged on the installation platform 2, and the escalator walking board 3 is arranged on one side of the installation platform 2.

The canopy 1 is used for covering and preventing various devices from being damaged in rainy and snowy weather, and the escalator walking board 3 is convenient for workers to mount the platform 2 up and down.

As shown in fig. 1, fig. 2 and fig. 3, the telescopic rod further comprises a frame 7, a sliding block 9 and a lead screw 8, wherein the sliding block 9 is slidably mounted in the frame 7, the lead screw 8 is rotatably mounted in the frame 7, the sliding block 9 is matched with the lead screw, and a telescopic rod 10 is fixed on the sliding block 9; when the lead screw 8 rotates, the slide block 9 drives the telescopic rod 10 to move. A servo motor 19 on the frame 7 drives the screw rod 8 to rotate through a belt transmission component 20.

The telescopic rod 10 is moved through the screw rod 8, so that the operation is more convenient and accurate, and the control is convenient.

As shown in fig. 1, fig. 2 and fig. 3, the liquid spraying device further includes a plurality of spray heads 12, the spray heads 12 are disposed on the frame 7, spray nozzles of the spray heads 12 face the telescopic rod 10, the spray heads 12 are symmetrically distributed around the telescopic rod 10, and the spray heads 12 are used for spraying liquid.

Because the dregs car can produce the raise dust when clearing away the dregs, and the raise dust can cover on the TDR probe, and in case the raise dust covers on the TDR probe, can lead to the TDR probe can't detect, so around telescopic link 10 symmetric distribution shower nozzle 12, when telescopic link 10 area TDR probe is close to shower nozzle 12, spout water or liquid in the shower nozzle 12, these water sprays when telescopic link 10, can wash the TDR probe, can avoid the deposition on the TDR probe like this, the detectivity and the precision of keeping the TDR probe.

As shown in fig. 1, fig. 2 and fig. 3, the shower nozzle further includes an air duct, the air duct is fixed in the frame 7, and an air outlet of the air duct faces the shower nozzle 12.

Because shower nozzle 12 is when the water spray, water is unlikely to spout completely to TDR probe department, so set up the tuber pipe, the direction of blowing of tuber pipe perpendicular to shower nozzle 12, when wasing the TDR probe like this, shower nozzle 12 is opened with the tuber pipe simultaneously, the wind that the tuber pipe blew out combines shower nozzle 12 spun air current, can form one slope and blow to the aqueous vapor bubble stream of TDR probe, water is pressing from both sides miscellaneous bubble impact TDR probe, can play quick clean effect to the TDR probe like this, clean effect is better simultaneously. Simultaneously because clean after the TDR probe, because the air-out orientation of tuber pipe is on a parallel with telescopic link 10, open the tuber pipe again after clean TDR probe like this, the tuber pipe can form one air current by TDR probe week edge like this, can utilize the air current to weather the TDR probe fast.

As shown in fig. 1, fig. 2 and fig. 3, the plurality of support rods 5 are arranged, the support rods 5 are distributed in a rectangular shape, each support rod 5 is provided with a laser distance measuring instrument 4, and all the laser distance measuring instruments 4 are equal in distance from the mounting platform 2.

Because the bracing piece 5 is the rectangle and distributes, when the dregs car drives into this rectangle like this, after the dregs car parks, set up laser range finder 4 on the bracing piece 5 again can real-time measurement with the distance at dregs car goods fill edge, because laser range finder 4's measurement accuracy is very high, can detect at any time with the distance at goods fill edge, can real-time supervision goods fill the small change, can real-time supervision goods fill the small deformation like this, if the goods fill is in the state that takes place the expansion ceaselessly, can prove that the goods fill of dregs car has taken place the phenomenon of transshipping at this moment, need in time to handle, otherwise the accident that the goods fill scatters the frame can appear to the high probability.

As shown in fig. 1, fig. 2 and fig. 3, the dust detector 15 is further included, and the dust detector 15 is disposed on the mounting platform 2.

The dust detector 15 is arranged to monitor whether measures (such as water spraying or green screen cloth covering) for suppressing dust emission are taken when the muck truck is used for cleaning muck, and if the dust detector 15 monitors that the dust exceeds the standard, the measures are required to be taken to suppress the dust.

As shown in fig. 1, fig. 2 and fig. 3, the wind power generation system further includes a gas humidity sensor and a wind speed measuring sensor, and the gas humidity sensor and the wind speed measuring sensor are arranged on the mounting platform 2.

The arrangement of the gas humidity sensor and the wind speed sensor 17 is to monitor the wind speed and the humidity of the air, if the dust detected by the dust detector 15 does not exceed the standard, the gas humidity sensor detects that the air humidity is relatively low, and the wind speed sensor 17 detects that the wind speed is relatively large, so that the dust raising prevention measures are still required to be taken for the cargo hopper of the muck truck. Because in dry windy weather, even the goods fill of dregs car has covered the green screen cloth and also still has produced the raise dust phenomenon easily.

As shown in fig. 1, fig. 2 and fig. 3, the dust detection device further comprises a computer 14 and a human body infrared sensor 16, the human body infrared sensor 16 is arranged on the mounting platform 2, and the dust detector 15, the gas humidity sensor, the wind speed measurement sensor and the human body infrared sensor 16 are all electrically connected with the computer 14.

Because whole device is the need people to stand on mounting platform 2 sometimes, but if the people stands in the windy weather when operation platform very easily by the raise dust of dregs car and cause the upper cover, so set up human infrared inductor 16, if the raise dust has been detected when dust detector 15, wind speed measuring transducer surveys when wind speed is great relatively this moment, it is the operation of unsuitable people standing on mounting platform 2 this moment, so stand on mounting platform 2 occasionally, human infrared inductor 16 is can sense, computer 14 is can in time sense like this, can let computer 14 in time send the warning, avoid personnel to stand on mounting platform 2 and receive the dust injury.

As shown in fig. 1, 2 and 3, the support device further comprises a wagon balance 6, and the wagon balance 6 is arranged between the support rods 5.

The wagon balance 6 is used for detecting the weight of the slag car and detecting whether the slag car is overloaded or not.

The device is an online detection system based on a penetration Time Domain Reflectometry (TDR) probe. The system erects at the weighbridge entrance of dregs transport vechicle through the gate-type steelframe, utilizes electric lift system to insert injection formula TDR sensor probe into dregs in the car hopper, to the contaminated degree short-term test of dregs about 15 seconds, sends the warning when the testing result exceeds standard, instructs the dregs transport vechicle to accept further sample detection to appointed parking stall. The detection system has high automation degree, and a user can conveniently process and analyze data through a simple computer operation panel.

This device can go out the most important link that building site, transfer and three pass were closed to the engineering dregs detected, and the implementation can show to reduce by the risk that the contaminated engineering dregs got into the circulation, promotes engineering dregs quality overall process management and control level.

The penetration type TDR sensor probe is an implementation principle based on the independent research and development of a time domain reflection technology, and can quickly determine the important electrical indexes of target muck for the innovative instrument for penetration and quick detection of the soil pollution degree: the dielectric constant and the conductivity, and further the quantitative relation between the soil electrical index and the pollution state is constructed. The strength of the novel probe is strengthened by means of adopting a high-strength stainless steel needle, optimizing an electrode embedding mode and the like, and the applicability of the TDR probe in a depth range of 30m below the ground surface is ensured.

Simultaneously this device can also adopt high definition digtal camera, and high definition digtal camera is used for shooing the dregs surface in the dregs transportation car hopper to reach operating personnel with the image real-time, operator's accessible image makes audio-visual prejudgement to the dregs category. Meanwhile, the condition of the soil can be displayed by adopting a signal lamp, the signal indicator lamp comprises red, green and yellow, the states of pollution, non-pollution and detection are respectively represented, and the color switching of the indicator lamp is controlled by an algorithm program in a data acquisition system (matched with the device).

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and can be directly or indirectly applied to other related fields of technology.

Claims

1. The utility model provides a soil pollution detection device based on TDR sensor, includes the TDR sensor, its characterized in that still includes mounting platform, bracing piece and telescopic link, mounting platform passes through the unsettled installation of bracing piece is on the ground, the TDR sensor passes through the telescopic link telescopically and installs on mounting platform, and the telescopic link runs through mounting platform perpendicularly.

2. The soil pollution detection device based on the TDR sensor as recited in claim 1, further comprising a canopy and a staircase platform, wherein the canopy is disposed on the installation platform, the canopy is used for covering the installation platform, the staircase platform is disposed on the installation platform, and the staircase platform is disposed on one side of the installation platform.

3. The soil pollution detection device based on the TDR sensor as recited in claim 1, further comprising a frame, a slider and a lead screw, wherein the slider is slidably mounted in the frame, the lead screw is rotatably mounted in the frame, the slider and the lead screw are engaged together, and the telescopic rod is fixed on the slider; when the lead screw rotates, the sliding block drives the telescopic rod to move.

4. The soil contamination detection device based on the TDR sensor of claim 3, further comprising a plurality of nozzles, wherein the nozzles are disposed on the frame, the nozzles of the nozzles face the telescopic rod, the nozzles are symmetrically distributed around the telescopic rod, and the nozzles are used for spraying liquid.

5. The TDR sensor-based soil contamination detection device of claim 4, further comprising an air duct fixed within the frame, an air outlet of the air duct facing the spray head.

6. The TDR sensor-based soil pollution detection device of claim 1, wherein the support rods are provided with a plurality of rectangular distribution, each support rod is provided with a laser range finder, and all the laser range finders are equal to the mounting platform.

7. The TDR sensor-based soil contamination detection device of claim 1, further comprising a dust detector disposed on the mounting platform.

8. The TDR sensor-based soil contamination detection device of claim 7, further comprising a gas humidity sensor and a wind speed measurement sensor, which are disposed on the mounting platform.

9. The TDR sensor-based soil pollution detection device of claim 8, further comprising a computer and a human body infrared sensor, wherein the human body infrared sensor is disposed on the mounting platform, and the dust detector, the gas humidity sensor, the wind speed measurement sensor and the human body infrared sensor are electrically connected to the computer.

10. The TDR sensor-based soil contamination detection device of claim 1, further comprising a wagon balance disposed between the support rods.