A vehicle-mounted integrated platform for soil collection, testing and treatment

Abstract

The present invention provides a vehicle-mounted integrated platform for soil collection, detection and treatment, comprising a vehicle, wherein a power device and a portable drilling rig are arranged in the vehicle, the vehicle provides power to the portable drilling rig through the power device, the vehicle is also equipped with a soil sampling drill bit for soil sampling, a soil gas sampling drill bit for soil gas sampling and a double-liquid injection drill bit for soil remediation and treatment for use by the portable drilling rig, and the vehicle is also equipped with an XRF soil sample pretreatment device for pretreatment of soil samples, an XRF tester for testing the pretreated samples, a GC-MS sampling pretreatment device for pretreatment of soil gas, a GC-MS tester for testing the pretreated soil gas, and a nitrogen cylinder as a carrier of the GC-MS tester.

Description

Technical Field

[0001] The present invention relates to the field of soil detection equipment, and in particular to a vehicle-mounted integrated platform for soil collection, detection and treatment. Background Art

[0002] Soil is a non-renewable resource. When the content of harmful substances in the soil exceeds the self-purification capacity of the soil itself, the soil properties and quality will deteriorate, leading to soil pollution. At the same time, as the center of the land system, soil not only circulates energy and materials within its own system, but also continuously exchanges materials with water, the atmosphere and organisms. Once pollution occurs, the entire ecosystem will be destroyed, and ultimately harm human health. Since the self-purification capacity of soil is slow and very limited, and soil pollution has the characteristics of concealment, accumulation and irreversibility, it is very necessary to timely discover, monitor and control soil pollution.

[0003] At present, the soil pollution problem in my country is very serious. According to statistics, the polluted cultivated land has reached 40 million hectares. The types of soil pollution are diverse, showing the coexistence of new and old pollutants and organic and inorganic compound pollution. Therefore, high requirements are placed on the accurate detection and treatment of pollutants in polluted soil. Accurate detection requires that the soil and groundwater in the contaminated site can be scientifically selected and systematically sampled, and the types and contents of pollutants can be quantitatively and timely accurately analyzed while ensuring the reliability of sampling. According to accurate test results and corresponding geological environment, and timely sharing of relevant data, experts in various fields can be united to carry out treatment according to local conditions, so that soil pollution can be controlled and treated in a timely and effective manner.

[0004] At present, the traditional method of drilling or installing sampling wells to collect soil samples and soil gas and send them to the laboratory for soil testing is generally adopted in China. This method not only has complex equipment, difficult operation, and long working cycle, but also the collected soil samples and soil gas cannot be detected in time. It often takes several days or even weeks to get the results in the laboratory. At the same time, soil samples and soil gas are prone to loss or deterioration after being placed for a long time, which greatly affects the reliability and accuracy of the measurement. This lag often makes soil treatment miss the best time, especially when an emergency leakage accident occurs, rapid and reliable sampling, analysis and targeted treatment can prevent the spread of pollution. According to the survey, the current membrane interface probe (Membrane Interface Probe, MIP) can perform semi-quantitative determination of volatile organic compounds in soil in real time, and can quickly determine the scope of pollution. However, MIP has a high detection limit, low resolution, poor anti-interference ability, and cannot detect the content of inorganic pollutants in the soil, and cannot provide complete and accurate information on soil pollution. At the same time, due to the complexity of soil pollution, targeted governance often needs to be combined with the on-site geological environment and accurate pollution information, which requires relevant experts from all aspects to share relevant information and data in a timely manner. However, such a platform for timely sharing of soil information has not yet been perfected in China. Summary of the invention

[0005] Purpose of the invention: The technical problem to be solved by the present invention is to provide a vehicle-mounted integrated platform for soil collection, detection and treatment in view of the shortcomings of the prior art.

[0006] In order to solve the above technical problems, the present invention provides a vehicle-mounted integrated platform for soil collection, detection and treatment, including a vehicle, wherein a power device and a portable drilling rig are provided in the vehicle, and the vehicle provides power to the portable drilling rig through the power device. The vehicle is also equipped with a soil sampling drill bit for soil sampling, a soil gas sampling drill bit for soil gas sampling and a double-liquid injection drill bit for soil remediation and treatment for the portable drilling rig.

[0007] The power device includes a gearbox located in the vehicle and a power take-off connected to the gearbox, the power take-off is connected to the drilling rig main pump, the drilling rig main pump is connected to the hydraulic oil tank, the hydraulic oil tank is connected to the connecting frame, the connecting frame is connected to the quick-plug connector, the quick-plug connector is connected to the hydraulic connecting pipe, and the hydraulic connecting pipe is connected to the portable drilling rig.

[0008] In the present invention, an XRF soil sample pre-processing device for pre-processing the soil sample is arranged in the vehicle.

[0009] In the present invention, an XRF tester for testing the pre-treated samples is arranged in the vehicle.

[0010] The present invention, a GC-MS sampling pre-treatment device for pre-treating soil gas is arranged in the vehicle.

[0011] In the present invention, a GC-MS tester for testing the pre-treated soil gas and a nitrogen gas cylinder as a carrier of the GC-MS tester are arranged in the vehicle.

[0012] In the present invention, the XRF tester and the GC-MS tester are both connected to a computer.

[0013] The vehicle-mounted drilling rig for collecting soil samples and soil gas of the present invention uses a box truck as a carrier and can be quickly switched between various work sites. The drilling rig is transported at the speed of a truck, thereby improving the efficiency and speed of sampling.

[0014] The present invention discloses a vehicle-mounted drilling rig for collecting soil samples and soil gas, wherein the drilling rig obtains a fully hydraulic power source from a box truck by quick plugging, and the maximum drilling depth can reach 15m, without the need to install a diesel engine. The drilling rig is easy to operate and highly maneuverable, and does not interfere with detection instruments in the vehicle compartment during sampling.

[0015] The vehicle-mounted drilling rig for collecting soil samples and soil gas of the present invention can realize soil surface samples and deep layer samples by replacing the drill bit.

[0016] The vehicle-mounted drilling rig for collecting soil samples and soil gas of the present invention can collect soil gas in situ by replacing the drill bit.

[0017] The vehicle-mounted drilling rig for collecting soil samples and soil gas of the present invention can timely perform in-situ repair of contaminated soil by replacing a double-liquid injection drill bit.

[0018] The present invention provides a vehicle-mounted method for detecting soil samples and soil gas. By replacing a double-liquid injection drill bit, the drill bit is driven into a part of the stratum that needs to be repaired, and emergency repair is performed by injecting chemical agents through the drill bit. The method includes using a portable X-ray fluorescence spectrometry (X-ray Fluorescence, XRF) analysis method for solid soil samples. The method is simple to operate, short in time, with little loss and high in accuracy.

[0019] The present invention discloses a vehicle-mounted method for detecting soil samples and soil gas, which comprises using a portable gas chromatography-mass spectrometer (GC-MS) method to test the soil gas, and testing the collected soil gas through headspace injection or a gas-sealed syringe. The method has high resolution, low detection limit and high accuracy for each volatile organic component.

[0020] The vehicle-mounted integrated platform for soil collection, detection and treatment of the present invention includes a soil information sharing software platform developed on a PC and a mobile terminal, which can timely upload the geological conditions and detection results of the contaminated soil to a cloud database, and can propose targeted solutions for the treatment of the contaminated soil through comparative analysis of big data and timely processing opinions of relevant experts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the above and other advantages of the present invention will become more clear.

[0022] Figure 1 A schematic diagram of a vehicle-mounted drilling rig for collecting soil samples and soil gas according to the present invention when in operation;

[0023] Figure 2 A schematic diagram of a vehicle-mounted platform for detecting soil samples and soil gas according to the present invention;

[0024] Explanation of the symbols in the schematic diagram:

[0025] 1. Box truck; 2. Power take-off; 3. Drilling rig main pump; 4. Hydraulic oil tank; 5. Connecting frame; 6. Quick connector; 7. Hydraulic connecting pipe; 8. Portable drilling rig; 9. Soil sampling drill bit; 10. Soil gas sampling drill bit; 11. Double liquid injection drill bit; 12. XRF soil sample pretreatment device; 13. XRF tester; 14. Nitrogen cylinder; 15. GC-MS injection pretreatment device; 16. GC-MS tester; 17. Computer data collection and sharing terminal. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 , Figure 2The present embodiment is a vehicle-mounted integrated platform for soil collection, detection and treatment, including a van 1 as a vehicle; a power take-off 2, a drilling rig main pump 3 and a hydraulic oil tank 4 as power sources; a connecting frame 5, a quick-connect connector 6 and a hydraulic connecting pipe as energy transmission devices for a portable drilling rig 7; the power take-off 2 is connected to the drilling rig main pump 3, the drilling rig main pump 3 is connected to the hydraulic oil tank 4, the hydraulic oil tank 4 is connected to the connecting frame 5, the connecting frame 5 is connected to the quick-connect connector 6, the quick-connect connector 6 is connected to the hydraulic connecting pipe 7, and the hydraulic connecting pipe 7 is connected to the portable drilling rig 8. The soil sampling drill bit 9 can be connected to the portable drilling rig 7 to sample the shallow and deep layers of the soil; the soil gas sampling drill bit 10 can be connected to the portable drilling rig 7 to sample the soil gas; the double-liquid injection drill bit 11 can be connected to the portable drilling rig 7 to perform soil remediation and treatment; the soil sample obtained by the soil sampling drill bit 9 is pre-treated in the XRF soil sample pre-treatment device 12; the soil sample obtained by the XRF soil sample pre-treatment device 12 is tested in the XRF tester 13; the nitrogen cylinder 14 is used as a current carrier of the GC-MS tester 16, and the soil gas obtained by the soil gas sampling drill bit 10 is pre-treated by the GC-MS sampling pre-treatment device 15 and then enters the GC-MS tester 16 for testing; the data measured by the XRF tester 13 and the GC-MS tester 16 will be uploaded to the computer data collection and sharing terminal 17, stored in the cloud database, and shared with experts in the field of soil research. After big data comparison and expert processing opinions, the chemical reagent is filled through the double-liquid injection drill bit 11 and connected to the portable drilling rig 7 for soil remediation and treatment.

[0028] In the present invention, the soil sampling drill bit adopts a soil sampling drill rod with an outer diameter of 2.25 inches, which is composed of an outer metal drill rod and an inner PVC sampling tube; the soil gas sampling drill bit is composed of a metal drill rod with an outer diameter of 2.25 inches and an inner oil pipe gas sampling tube; the double-liquid injection drill bit is a 2.5-inch multi-channel metal drill rod.

[0029] In the present invention, the XRF soil sample pretreatment device: a platform for bagging, rooting and leveling the soil;

[0030] XRF tester: Olympus products can be selected;

[0031] GC-MS pretreatment devices are used to concentrate trace targets and provide measurement accuracy and sensitivity. They mainly include solvent extraction, solid phase extraction, micro-phase extraction and other operating devices and platforms;

[0032] The GC-MS tester is a portable / vehicle-mounted gas chromatograph-mass spectrometer (portable GC-MS), which consists of a gas chromatograph and a mass spectrometer, carrier gas and internal standard gas bottles, a high vacuum pump, and control electronics, batteries, keyboards, displays, and probes. Portable GC-MS can achieve direct sample injection and is fully suitable for on-site work.

[0033] Specifically, a pesticide tanker accident occurred on the highway, causing a large-scale leakage of toxic pesticides. On-site processing personnel can drive a box truck 1 to quickly reach the scene and determine the sampling point based on the wind direction and the geographical location of the scene. The mobility of the portable drill 8 is used to quickly collect soil gas samples using the soil sampling drill bit 9, and soil gas is collected using the soil gas sampling drill bit 10. The obtained soil sample is directly processed by the XRF soil sample pretreatment device 12 on the box truck 1 and tested on the XRF tester; the obtained soil gas sample is directly processed by the GC-MS sampling pretreatment device 15 on the box truck 1; tested on the GC-MS tester 16; the test results will be directly uploaded to the computer data collection and sharing terminal 17. This makes it possible to quickly determine the scope of pollution and the depth of soil pollution. The test results and the geological conditions on site will be uploaded to the cloud database through the computer data collection and sharing terminal 17 and sent to experts in related fields. According to the comparison results of big data and the opinions of experts in related fields, the treatment plan is determined to be the injection of nano iron reagent as an emergency treatment method, and the ferrous sulfate agent (FeSO4) is injected into one cavity of the double liquid injection drill bit 11, and sodium borohydride (NaBH4) is injected into the other cavity of the double liquid injection drill bit. The double liquid injection drill bit is driven into the contaminated soil to be treated by a portable drill rig 8 to perform in-situ injection treatment and soil repair. Using the vehicle-mounted integrated platform for soil collection, detection, and treatment of the present invention, similar leakage accidents can be handled quickly and timely.

[0034] The present invention provides a vehicle-mounted integrated platform for soil collection, detection and treatment. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A vehicle-mounted integrated platform for soil collection, detection and treatment, characterized in that: The invention comprises a vehicle (1), wherein a power device and a portable drilling rig (8) are arranged in the vehicle, the vehicle provides power to the portable drilling rig through the power device, and the vehicle is also equipped with a soil sampling drill bit (9) for soil sampling, a soil gas sampling drill bit (10) for soil gas sampling, and a double-liquid injection drill bit (11) for soil remediation and treatment for use by the portable drilling rig; the power device comprises a gearbox located in the vehicle and a power take-off (2) connected to the gearbox, the power take-off (2) being connected to a main pump (3) of the drilling rig, and the main pump (3) of the drilling rig being connected to a main pump (4). The hydraulic oil tank (4) is connected to the connecting frame (5), the connecting frame (5) is connected to the quick connector (6), the quick connector (6) is connected to the hydraulic connecting pipe (7), and the hydraulic connecting pipe (7) is connected to the portable drilling rig (8); the soil sampling drill bit adopts a soil sampling drill rod with an outer diameter of 2.25 inches, which is composed of an outer metal drill rod and an inner PVC sampling pipe; the soil gas sampling drill bit is composed of a metal drill rod with an outer diameter of 2.25 inches and an inner oil pipe gas sampling pipe; the double-liquid injection drill bit is a 2.5-inch multi-channel metal drill rod.

2. The vehicle-mounted integrated platform for soil collection, detection and treatment according to claim 1 is characterized in that: The vehicle is provided with an XRF soil sample pre-processing device (12) for pre-processing the soil sample.

3. The vehicle-mounted integrated platform for soil collection, detection and treatment according to claim 2 is characterized in that: The vehicle is provided with an XRF tester (13) for testing the pre-treated samples.

4. The vehicle-mounted integrated platform for soil collection, detection and treatment according to claim 3 is characterized in that: The vehicle is provided with a GC-MS sampling pre-treatment device (15) for pre-treating soil gas.

5. The vehicle-mounted integrated platform for soil collection, detection and treatment according to claim 4 is characterized in that: The vehicle is provided with a GC-MS tester (16) for testing the pre-treated soil gas and a nitrogen gas cylinder (14) serving as a flow carrier for the GC-MS tester (16).

6. The vehicle-mounted integrated platform for soil collection, detection and treatment according to claim 5 is characterized in that: The XRF tester (13) and the GC-MS tester (16) are both connected to a computer.

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