CN-122016385-A - Polycyclic aromatic hydrocarbon contaminated soil treatment sampling device

CN122016385ACN 122016385 ACN122016385 ACN 122016385ACN-122016385-A

Abstract

The invention belongs to the technical field of environmental treatment and soil sampling equipment, and particularly relates to a polycyclic aromatic hydrocarbon contaminated soil treatment sampling device which comprises a rotatable sampling head and a controller, wherein the output end of the sampling head is connected with an openable and closable container, the side wall of the output end of the sampling head is slidably connected with an automatic sealing mechanism, the automatic sealing mechanism comprises a switching driving assembly and a packaging driving assembly, and the input end of the container is connected with a cleaning mechanism. The structure of the invention is convenient to use, improves the sampling efficiency of polycyclic aromatic hydrocarbon polluted soil, enhances the detection effect, realizes the closed loop of the sampling-packaging-cleaning mode, and enhances the detection accuracy.

Inventors

LIU WENJUAN
TAO HUILIN
LI WENWEN
CAO XUEJIANG
SONG RUIHONG
YU QIAN
ZHANG SHUTING
LI XINHUA

Assignees

山东省煤田地质局第五勘探队

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (9)

1. The utility model provides a sampling device is administered to polycyclic aromatic hydrocarbon contaminated soil, includes rotatable sampling head and controller, its characterized in that, sampling head output is connected with the container that can open and shut, sampling head output lateral wall sliding connection automatic sealing mechanism, and automatic sealing mechanism is including switching drive subassembly and encapsulation drive subassembly, and container input is connected with clearance mechanism.
2. The sampling device for polycyclic aromatic hydrocarbon contaminated soil remediation according to claim 1, wherein the sampling head is further provided with a drive mechanism for rotating the sampling head.
3. The sampling device for polycyclic aromatic hydrocarbon contaminated soil treatment according to claim 2, wherein the driving mechanism comprises a connecting rod fixed on the sampling head, the other end of the connecting rod is fixedly connected with a rotary table above the sampling head, the other end of the rotary table is fixedly connected with an output shaft of a first driving motor, the first driving motor is fixedly connected with a setting frame, and one end of the setting frame far away from the first driving motor is fixedly connected with a handle and a controller.
4. The sampling device for treating polycyclic aromatic hydrocarbon contaminated soil according to claim 1, wherein the inner wall of the container is fixedly connected with a buffer pad, the buffer pad is in contact with a container bottle, the outer wall of the container is fixedly connected with a switch for opening and closing the container bottle, the container bottle is made of opaque glass, and the buffer pad is provided with a first pressure sensor.
5. The sampling device for treating polycyclic aromatic hydrocarbon contaminated soil according to claim 1, wherein the switching driving assembly comprises a base ring which is rotationally embedded into the output end of the sampling head, the inner wall of the base ring is in contact connection with a transmission rod through an electromagnetic clutch, one end of the transmission rod is fixedly connected with the output shaft of a second driving motor above the base ring, the second driving motor is fixedly connected with an overhanging plate of the sampling head, a through hole which is communicated with the sampling head and the container is further formed in the base ring, and the side wall of the transmission rod is sequentially and fixedly connected with a packaging assembly and a displacement sensor.
6. The polycyclic aromatic hydrocarbon contaminated soil treatment sampling device according to claim 5, wherein the packaging component comprises a lifting plate arranged in the base ring, the lower end of the lifting plate is hinged with the base ring through a scissor type support, the scissor type support and the transmission rod are connected inside the base ring through a gear transmission mechanism, a second pressure sensor is arranged on the lifting plate, and the base ring is provided with a groove for lifting movement of the lifting plate and movement of the gear transmission mechanism.
7. The sampling device for soil remediation of polycyclic aromatic hydrocarbon contaminated soil according to claim 6, wherein the gear transmission mechanism comprises a driving bevel gear coaxially and fixedly connected with the transmission rod, one side of the driving bevel gear is meshed with the driving bevel gear, the driving bevel gear is connected with the screw rod through a rotating shaft, the outer surface of the screw rod is in threaded connection with a driving block, and the driving block is hinged with the supporting legs of the scissor type support.
8. The sampling device for polycyclic aromatic hydrocarbon contaminated soil treatment according to claim 4, wherein the cleaning mechanism comprises a movable ring of a sliding sleeve receiving container, the side wall of the movable ring is fixedly connected with a water spray head and a drying head, the water spray head and the drying head are respectively connected with a water pump and a dryer which are fixed on the turntable through pipelines, the input end of the water pump is connected with a water storage tank which is fixed on the turntable, and the input end of the container is provided with a through hole which is communicated with the water spray head and the drying head.
9. The sampling device for polycyclic aromatic hydrocarbon contaminated soil remediation according to claim 5, wherein the sampling head and the abutment ring are made of stainless steel, and the sampling end of the sampling head is provided with a plurality of cutting blocks.

Description

Polycyclic aromatic hydrocarbon contaminated soil treatment sampling device Technical Field The invention belongs to the technical field of environmental treatment and soil sampling equipment, and particularly relates to a polycyclic aromatic hydrocarbon polluted soil treatment sampling device. Background Polycyclic Aromatic Hydrocarbons (PAHs) are a class of persistent organic pollutants widely existing in the environment and have strong carcinogenic, teratogenic and mutagenic effects. Before and after treating PAHs contaminated soil (such as chemical oxidation, biological repair and the like), accurate sampling is needed to be carried out on the soil so as to evaluate the pollution degree and the treatment effect, and at present, a manual sampler (such as a bamboo shovel and a stainless steel shovel) or a simple mechanical drilling device is adopted for soil sampling. In these conventional methods, after each sampling, the surface of the sampling head adheres to the residual contaminated soil, and if the next sampling is performed without thorough cleaning, the high-concentration contaminants are very easily brought into the low-concentration or repaired area, which results in serious distortion of the detection data and misleading treatment effect evaluation. In addition, PAHs are semi-volatile and their distribution is highly heterogeneous. Meanwhile, the soil structure is destroyed in the sampling process, the integrity of the undisturbed columnar sample is difficult to maintain, and the accuracy of the pollutant spatial distribution analysis is affected. During sampling and dispensing, operators can be directly exposed to dust and volatile gases of highly toxic pollutants, with significant occupational health safety hazards. To ensure sample quality, a set of sterile tools is usually required for one sampling point, or time-consuming cleaning and disinfection operations are required frequently, so that the working efficiency is greatly reduced in large-scale field investigation. In the prior art, patent CN120063782B discloses a soil sampling device comprising a sampling assembly for soil sampling and a driving mechanism for driving and cleaning excess soil. The arrangement mode can cut and remove redundant soil when soil is sampled, and the soil compactness is guaranteed. But still have the improvement that firstly, through cutting part and soil storage spare cooperation work, realize soil sampling and accomodate, the leakproofness is poor, and cross infection takes place for soil easily, reduces the detection precision. And after the second and soil collection, the soil needs to be transported to a designated position, the collection period is long, and the efficiency is low. Third, device stability and integration are to be further optimized. Therefore, there is an urgent need for a polycyclic aromatic hydrocarbon contaminated soil treatment sampling device that can achieve integration of sampling, in-situ packaging, and self-cleaning, and can maintain sample integrity to the maximum and avoid cross contamination. Disclosure of Invention In order to overcome the technical problems, the invention provides a polycyclic aromatic hydrocarbon polluted soil treatment sampling device. The invention adopts the following technical scheme that the sampling device for treating polycyclic aromatic hydrocarbon polluted soil comprises a rotatable sampling head and a controller, wherein the output end of the sampling head is connected with a container which can be opened and closed, the side wall of the output end of the sampling head is connected with an automatic sealing mechanism in a sliding manner, the automatic sealing mechanism comprises a switching driving assembly and a packaging driving assembly, and the input end of the container is connected with a cleaning mechanism. Preferably, the sampling head is further provided with a drive mechanism for rotating the sampling head. Preferably, the driving mechanism comprises a connecting rod fixed on the sampling head, the other end of the connecting rod is fixedly connected with a rotary table above the sampling head, the other end of the rotary table is fixedly connected with an output shaft of a first driving motor, the first driving motor is fixedly connected with a setting frame, and the setting frame is far away from the handle and the controller which are fixedly connected with one end of the first driving motor. Preferably, the inner wall of the container is fixedly connected with a buffer pad, the buffer pad is in contact with the container bottle, the outer wall of the container is fixedly connected with a switch for opening and closing the buffer pad, the container bottle is made of opaque glass, and the buffer pad is provided with a first pressure sensor. Preferably, the switching driving assembly comprises a base ring which is rotationally embedded into the output end of the sampling head, the inner wall of the base ring is connected with a transmiss