CN119715030A - A sampling device and method for monitoring groundwater pollution in mining areas - Google Patents
A sampling device and method for monitoring groundwater pollution in mining areas Download PDFInfo
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- CN119715030A CN119715030A CN202510064809.9A CN202510064809A CN119715030A CN 119715030 A CN119715030 A CN 119715030A CN 202510064809 A CN202510064809 A CN 202510064809A CN 119715030 A CN119715030 A CN 119715030A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The application relates to a sampling device and a sampling method for monitoring underground water pollution of a mining area, wherein the sampling device comprises a sealed shell, a release mechanism, a sample moving mechanism and a receiving mechanism, wherein the release mechanism, the sample moving mechanism and the receiving mechanism are arranged in the sealed shell, a plurality of sample tubes are arranged on a placing surface of the release mechanism, liquid inlets are formed in the sample tubes, the sample tubes can slide out of a lower side of the placing surface through the action of gravity, the sample moving mechanism is configured to receive the sample tubes sliding out of the placing surface and move the sample tubes out of the sealed shell to collect water samples, the receiving mechanism is provided with a receiving surface, the sample moving mechanism can move the sample tubes after collecting the water samples onto the receiving surface from a higher side of the receiving surface through the action of gravity, and the inclination direction of the discharging side of the placing surface is opposite to the inclination direction of the receiving side of the receiving surface. The application realizes automatic sampling, reduces the use of liquid pipelines, and prevents cross contamination among samples caused by multiple sampling due to single sampling of a single sample tube.
Description
Technical Field
The application belongs to the technical field of mining area groundwater monitoring, and particularly relates to a sampling device and a sampling method for mining area groundwater pollution monitoring.
Background
Groundwater is contaminated during mining of metal mines, and thus it is necessary to monitor the groundwater in mining areas. Stratified sampling is a common sampling mode, and underground water is sampled at different depth positions, and then water samples of water layers with different depths are analyzed and tested, so that pollution conditions of underground water in mining areas are obtained.
The common layered sampling mode in the prior art comprises a first sampling mode, wherein a valve is arranged on a sampling container, the sampling container is lowered to a specified depth position in a water body through a rope, sampling of the water body is realized by opening and closing the valve, but a water sample at one depth position can be obtained each time, continuous sampling cannot be realized, the operation is complex, and the sampling efficiency is low. In the second sampling mode, water samples at different depth positions are directly extracted by the water pump to realize multiple sampling, but the accuracy of the sampling depth positions is poor, the water samples at the accurate depth positions are difficult to obtain, and in the multiple sampling operation, the liquid extracted at the previous time can be remained in a pipeline system connected with the water pump, and the residual liquid can be mixed with new samples extracted at the subsequent time. However, the components in the underground water of the mining area are complex, the pollution degree and the components of the water bodies in different areas and different depths are different, once the water bodies are mixed, the mutual pollution among the water body samples is caused, the judgment of the real pollution condition of the underground water is seriously interfered, the sample pollution condition causes the subsequent detection data to lose accuracy, and reliable basis cannot be provided for the pollution treatment of the underground water of the mining area.
Disclosure of Invention
In view of the above analysis, an embodiment of the present invention is directed to a sampling device for monitoring groundwater pollution in a mining area, which is used for solving at least one of the above problems in the prior art.
The purpose of the invention is realized in the following way:
In one aspect, there is provided a sampling device for mining area groundwater pollution monitoring, comprising:
a sealed housing;
the release mechanism is arranged in the sealed shell, a plurality of sample tubes are arranged on the placing surface of the release mechanism, liquid inlets are formed in the sample tubes, and the liquid inlets are controlled to be opened and closed through liquid inlet valves; the placing surface and the horizontal plane form an included angle, the included angle is an acute angle, and the sample tube can slide out from the lower side of the placing surface under the action of gravity;
a sample moving mechanism provided in the sealed housing, configured to receive the sample tube slid out from the placement surface, and move the sample tube to outside the sealed housing to collect the water body sample;
The material receiving mechanism is arranged in the sealed shell and positioned below the release mechanism, the material receiving mechanism is provided with a material receiving surface, the material receiving surface and the horizontal plane form an included angle, the included angle is an acute angle, and the sample moving mechanism can move the sample tube after collecting the water body sample onto the material receiving surface from one side with high material receiving surface under the action of gravity;
wherein, the inclination direction of one side for placing the surface discharge is opposite to the inclination direction of one side for receiving the material of the material receiving surface.
Further, the release mechanism includes:
The disk surface of the release disk comprises a placement surface, a plurality of sample tubes are annularly arranged on the placement surface of the release disk, and two ends of each sample tube are arranged in the radial direction of the release disk;
a release motor drivingly connected to the center of the release disc and configured to drive the release motor to rotate;
a clamping mechanism disposed on the release disc configured to secure the sample tube and release the sample tube when the sample tube is in the release position;
the directional rail is arranged on the release disc and is respectively positioned at two sides of the sample tube, and the sample tube is in sliding connection with the directional rail.
Further, the clamping mechanism comprises a clamping motor and a clamping piece, wherein the clamping motor is connected to the other disc surface opposite to the placing surface of the release disc, the clamping piece penetrates through the release disc and is in driving connection with the clamping motor, the clamping piece is provided with an extension part, and when the clamping motor drives the clamping piece to retract, the extension part can be abutted to the sample tube.
Further, the receiving mechanism includes receiving disc, receives material motor and receipts material frame, and the quotation of receiving disc includes the receipts charge level, receives material motor drive and connects in the center department of receiving disc, and receipts material frame includes a plurality ofly, and a plurality of receipts material frame rings are located the receipts charge level to receive the both ends of material frame and arrange in the radial direction of receipts charge level, receive the outward one end of material frame and be equipped with the entry, receive material frame and sample pipe looks adaptation, the tip of sample pipe and the one end inner wall that receives the material frame and be equipped with corresponding magnet.
Further, the sample moving mechanism includes:
A moving track;
The movable support is connected with the movable rail;
The synchronous belt assembly is arranged on the moving track and is configured to drive the moving bracket to slide on the moving track;
the steering mechanism is connected with the moving track and can move through the moving track;
The sample bearing frame is in driving connection with the steering mechanism, the length of the sample bearing frame is more than twice that of the sample tube, and the liquid collecting end of the sample bearing frame is provided with a limit strip;
When the steering mechanism drives the sample carrying frame to rotate to a material receiving position, the inlet end of the sample carrying frame is positioned above the liquid collecting end, the inclination angle of the sample carrying frame is the same as that of the placing surface, and the sample tube can slide to the liquid collecting end through the inlet end;
the steering mechanism can drive the sample bearing frame to rotate to a horizontal position;
When the steering mechanism drives the sample bearing frame to rotate to a discharging position, the entering end of the sample bearing frame is positioned below the liquid collecting end, the inclination angle of the sample bearing frame is the same as that of the material collecting surface, and the sample tube can slide from the liquid collecting end and enter the material collecting surface through the entering end.
Further, still include the collecting vessel, the collecting vessel sets up the installing port at sealed housing, and the uncovered of collecting vessel outwards, and the bottom of collecting vessel is equipped with the sample mouth, and the collecting vessel inner space passes through the inside intercommunication of sample mouth and sealed housing, and the sample mouth can be passed to the sample pipe, is equipped with electric valve on the collecting vessel for open and close the sample mouth.
Further, a water collecting tank is arranged below the sample moving mechanism and the collecting barrel, and a water bar is arranged on the outer wall of the middle part of the sample bearing frame.
Further, a wiping mechanism is provided above the sample moving mechanism and configured to wipe the residual liquid on the sample tube.
Further, the wiping mechanism includes a wiping cloth strip and a wiping drive assembly configured to drive the wiping cloth strip to wipe residual liquid on the sample tube.
On the other hand, the application also provides a sampling method for monitoring the pollution of the underground water of the mining area, and the sampling device for monitoring the pollution of the underground water of the mining area is used;
the sampling method comprises the following steps:
When sampling is started, the sealed shell is placed in a water body to be sampled in the hydrological monitoring well, the release motor is started to drive the release disc to rotate, the sampled sample tube is rotated to a release position, the clamping mechanism acts, the clamping motor drives the clamping piece to retract, the extension part of the clamping piece is loose to fix the sample tube, and the sample tube slides out to the sample bearing frame entering end of the sample moving mechanism along the side with a lower placement surface under the action of gravity and enters the liquid collecting end;
Starting a sample moving mechanism, driving a moving bracket to slide along a moving track by a synchronous belt assembly, driving a sample bearing frame connected with a steering mechanism to move, starting a sample port, enabling a sample pipe to extend out of a sealed shell, starting a sample pipe liquid inlet valve, and enabling groundwater to smoothly enter the sample pipe through the liquid inlet under the action of water pressure;
After the sampling is finished, closing a liquid inlet valve, starting the sample moving mechanism again, driving the moving bracket to reversely slide along the moving track by the synchronous belt assembly, retracting the extended sample bearing frame into the sealed shell, and then closing the sample port;
The sample moving mechanism continues to move, the sample bearing frame is sent to the vicinity of the material receiving surface, the inclination angle of the sample bearing frame is controlled to be the same as that of the material receiving surface, the sample tube slides from the liquid collecting end under the action of gravity and enters the material receiving frame of the material receiving surface through the entering end, and the sample tube and the end part of the material receiving frame are provided with corresponding magnets which are adsorbed and fixed;
the sample moving mechanism returns to the initial position and prepares for the next sampling.
Compared with the prior art, the sampling device and the sampling method for monitoring the underground water pollution of the mining area, provided by the invention, have the advantages that the external interference is isolated through the sealing structure of the sealing shell, a stable operation environment is built for an internal precision mechanism, after the sampling position is reached, the release mechanism is started immediately, and the inclined placing surface of the acute angle on the release disc promotes the sample tube to have a sliding trend by means of gravity at the beginning, but is firmly fixed by the clamping mechanism. When a sampling instruction is received, the release motor precisely drives the center of the disc to rotate, the sample tube is driven to be rapidly positioned to a release position, meanwhile, the clamping mechanism is loosened, and the sample tube slides to the sample moving mechanism along the placing surface under the guide of the directional rail. The sample moving mechanism intercepts a sliding sample tube according to control and moves the sample tube to the outside of the sealed shell to collect a water sample, at the moment, a liquid inlet on the sample tube is opened, the underground water sample is collected, the liquid inlet is closed after collection, and the sample moving mechanism recovers the sample tube into the sealed shell. The receiving mechanism is tightly matched with the sample moving mechanism, the acute angle receiving surface of the receiving disc is matched with the discharging direction of the sample moving mechanism, and the sample tube moves into the receiving surface from the sample moving mechanism by means of gravity after liquid collection is completed. Through the arrangement, not only is the continuous sampling of the sample realized, but also the sample tube can automatically stretch out for sampling, so that the use of a liquid pipeline is reduced, a single sample tube is used for single sampling, the phenomenon that liquid remains on a liquid channel and cross contamination between the generated samples is avoided when the samples are sampled for multiple times, and the purity of the samples is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present description, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of a sampling device for monitoring groundwater pollution in a mining area;
FIG. 2 is a schematic diagram of a sealed housing of the sampling device for mining area groundwater pollution monitoring according to the present invention;
FIG. 3 is a schematic diagram showing the overall structure of a sampling device for monitoring groundwater pollution in a mining area;
FIG. 4 is a schematic diagram of a sample moving mechanism of the sampling device for monitoring groundwater pollution in mining areas;
fig. 5 is a schematic diagram of a collecting barrel of the sampling device for monitoring the pollution of underground water in a mining area.
Reference numerals:
10. A sealed housing;
20. A release mechanism; 21, a placement surface, 201, a release disc, 202, a clamping mechanism, 203, a clamping piece, 204 and a release motor;
30. Sample moving mechanism, 301, moving track, 302, moving bracket, 303, synchronous belt assembly, 304, steering mechanism, 305, sample bearing frame, 306, liquid collecting end;
40. The device comprises a receiving mechanism, a receiving surface, a receiving disc, a receiving motor, a receiving frame and a receiving frame, wherein the receiving mechanism comprises a receiving surface, a receiving disc, a receiving motor and a receiving frame;
50. A sample tube;
60. Collecting barrel, 61, sample port, 62, electric valve, 63, water collecting tank;
70. the cleaning device comprises a cleaning mechanism 701, a cleaning cloth belt 702, an inner bracket 703 and a rotating part.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. It should be noted that embodiments and features of embodiments in the present disclosure may be combined, separated, interchanged, and/or rearranged with one another without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While the exemplary embodiments may be variously implemented, the specific process sequences may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in reverse order from that described. Moreover, like reference numerals designate like parts.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, when the terms "comprises" and/or "comprising," and variations thereof, are used in the present specification, the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof is described, but the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximation terms and not as degree terms, and as such, are used to explain the inherent deviations of measured, calculated, and/or provided values that would be recognized by one of ordinary skill in the art.
Example 1
In one embodiment of the present invention, as shown in fig. 1 to 5, a sampling device for monitoring groundwater pollution in a mining area is disclosed, and the sampling device may be referred to as a "sampling device" hereinafter, and the sampling device includes:
a sealed housing 10;
the release mechanism 20 is arranged in the sealed shell 10, the placement surface 21 of the release mechanism 20 is provided with a plurality of sample tubes 50, the placement surface 21 forms an included angle with the horizontal plane, the included angle is an acute angle, and the sample tubes 50 can slide out from the lower side of the placement surface 21 under the action of gravity;
A sample moving mechanism 30, which is arranged in the sealed shell 10 and is configured to receive the sample tube 50 sliding out of the placing surface 21 and move the sample tube 50 to the outside of the sealed shell 10 to collect the water sample, wherein a liquid inlet is arranged on the sample tube 50, and the liquid inlet is controlled to be opened and closed by a liquid inlet valve;
the material receiving mechanism 40 is arranged in the sealed shell 10 and is positioned below the release mechanism 20, the material receiving mechanism 40 is provided with a material receiving surface 41, the material receiving surface 41 forms an included angle with the horizontal plane, the included angle is an acute angle, the sample moving mechanism 30 can move the sample tube 50 after collecting the water body sample onto the material receiving surface 41 from the side with the height of the material receiving surface 41 under the action of gravity, and the inclination direction of the material discharging side of the placing surface 21 is opposite to the inclination direction of the material receiving side of the material receiving surface 41.
At the sampling point position to be monitored, the sampling device is placed in the water body to be monitored, after the sampling depth position is reached, the release mechanism 20 is started immediately, and the acutely inclined placement surface 21 on the release disc 201 promotes the sample tube 50 to slide downwards by gravity initially, but is firmly fixed by the clamping mechanism 202. When a sampling command is received, the release motor 204 precisely drives the center of the disc to rotate, so that the sample tube 50 is driven to be quickly positioned to a release position, and at the same time, the clamping mechanism 202 is released, and the sample tube 50 slides to the sample moving mechanism 30 along the placement surface 21 under the guidance of the directional rail. The sample moving mechanism 30 intercepts the sliding sample tube 50 according to control, and moves the sample tube 50 out of the sealed housing 10 to collect the water sample, at this time, a liquid inlet on the sample tube 50 is opened, the underground water sample is collected, after collection, the liquid inlet is closed, and the sample moving mechanism 30 recovers the sample tube 50 into the sealed housing 10. The receiving mechanism 40 is tightly matched with the sample moving mechanism 30, the acute angle receiving surface 41 of the receiving disc 401 is matched with the discharging direction of the sample moving mechanism 30, and the sample tube 50 moves into the receiving surface 41 from the sample moving mechanism 30 by gravity after liquid collection is completed.
A plurality of hydrologic monitoring wells are arranged in a mining area, and water sampling at different depth positions is performed in the hydrologic monitoring wells. When sampling is started, the sealed housing 10 is placed in a water body to be sampled in the hydrological monitoring well, the release motor 204 is started to drive the release disc 201 to rotate so as to enable the sampled sample tube 50 to rotate to a release position, the clamping mechanism 202 acts, the clamping motor drives the clamping piece 203 to retract, the extension part of the clamping piece is used for loosening the fixation of the sample tube 50, and the sample tube 50 slides out to the sample bearing frame 305 entering end of the sample moving mechanism 30 along the lower side of the placement surface 21 under the action of gravity and enters the liquid collecting end 306; starting the sample moving mechanism 30, driving the moving bracket 302 to slide along the moving track 301 by the synchronous belt assembly 303, driving the sample bearing frame 305 connected with the steering mechanism 304 to move, opening the sample port 61, enabling the sample tube 50 to extend out of the sealed shell 10, opening a liquid inlet valve of the sample tube 50, enabling underground water to smoothly enter the sample tube 50 through the liquid inlet under the action of water pressure, closing the liquid inlet valve after sampling is finished, starting the sample moving mechanism 30 again, driving the moving bracket 302 to reversely slide along the moving track 301 by the synchronous belt assembly 303, retracting the extending sample bearing frame 305 into the sealed shell 10, then closing the sample port 61, continuing to move by the sample moving mechanism 30, conveying the sample bearing frame 305 to the vicinity of the receiving surface 41, controlling the inclination angle of the sample bearing frame 305 to be the same as that of the receiving surface 41, enabling the sample tube 50 to slide from the liquid collecting end 306 under the action of gravity, enabling the sample tube 50 to enter the receiving frame 403 of the receiving surface 41, enabling the sample tube 50 and the end of the receiving frame 403 to be provided with corresponding magnets, enabling the sample tube 50 and the receiving frame 403 to be adsorbed and fixed, and returning the sample moving mechanism 30 to the initial position, and repeating the previous sampling until water sample collection at all preset depth positions is finished.
In some embodiments, the release mechanism 20 comprises a release disc 201, wherein the disc surface of the release disc 201 comprises a placement surface 21, the sample tube 50 comprises a plurality of sample tubes 50, the plurality of sample tubes 50 are annularly arranged on the placement surface 21 of the release disc 201, two ends of each sample tube 50 are arranged in the radial direction of the release disc 201, a release motor 204 is connected to the center of the release disc 201 in a driving mode and is configured to drive the release motor 204 to rotate, a clamping mechanism 202 is arranged on the release disc 201 and is configured to fix the sample tube 50, and release the sample tube 50 when the sample tube 50 is in a release position, and directional rails are arranged on the release disc 201 and are respectively arranged on two sides of the sample tube 50, and the sample tube 50 is in sliding connection with the directional rails.
The release disc 201 serves as a carrier substrate for the sample tube 50, and the release motor 204 drives the disc center shaft to deliver the target sample tube 50 to the release preparation position according to a predetermined program. The clamping mechanism 202 on the other side of the disc responds simultaneously, the clamping motor drives the clamping piece 203 to precisely act, and when sampling is carried out, the clamping motor moves upwards, the extending part of the clamping piece 203 leaves the sample tube 50, and the sample tube 50 slides to the sample moving mechanism 30 smoothly along the directional rail.
The release disc 201 and the clamping mechanism 202 are tightly matched, so that the sample tube 50 is efficiently used, and the sampling frequency is greatly improved. The precise driving of the motor and the stable guiding of the directional rail, the release position of the sample tube 50 is accurate, and the reliability is increased for the whole sampling process.
The clamping mechanism 202 comprises a clamping motor and a clamping member 203, the clamping motor being connected to the other disc surface opposite the placement surface 21 of the release disc 201, the clamping member 203 being threaded through the release disc 201 and being in driving connection with the clamping motor, the clamping member 203 having an extension which can abut against the sample tube 50 when the clamping motor drives the clamping member 203 to retract.
When the clamping motor can drive the clamping piece 203 to extend and retract, when the clamping piece 203 retracts, the extending part can be abutted to the sample tube 50, when the clamping piece 203 extends, the extending part does not abut to the sample tube 50, and the sample tube 50 can slide.
In some embodiments, the material receiving mechanism 40 includes a material receiving disc 401, a material receiving motor 402, and a material receiving frame 403, where the disc surface of the material receiving disc 401 includes a material receiving surface 41, the material receiving motor 402 is in driving connection with the center of the material receiving disc 401, the material receiving frame 403 includes a plurality of material receiving frames 403, the material receiving surface 41 is annularly disposed on the plurality of material receiving frames 403, two ends of the material receiving frames 403 are disposed in a radial direction of the material receiving surface 41, an outward end of the material receiving frames 403 is provided with an inlet, the material receiving frames 403 are adapted to the sample tube 50, and an end of the sample tube 50 and an inner wall of an end of the material receiving frames 403 are provided with corresponding magnets.
And in the receiving link, the acute angle receiving surface 41 of the receiving disc 401 is in accurate material discharging butt joint with the sample moving mechanism 30, so that the sample tube 50 is convenient to move in. The material receiving motor 402 drives the disc center shaft to rotate, the material receiving motor 402 selects a direct current brushless motor with good speed regulation performance, the position of the material receiving frame 403 can be flexibly adjusted, and the sample tube 50 can accurately fall into the frame. The material receiving frames 403 are annularly arranged, and the two ends of the material receiving frames are radially stretched, so that the sample tube 50 can conveniently enter the material receiving frames, and meanwhile, the material receiving frames are adsorbed by the magnets at the ends of the sample tube 50, so that the sample tube 50 can be fixed.
In some embodiments, the sample moving mechanism 30 comprises a moving track 301, a moving bracket 302 connected with the moving track 301, a synchronous belt assembly 303 arranged on the moving track 301, wherein the moving bracket 302 is in driving connection with the synchronous belt assembly 303, so that the synchronous belt assembly 303 drives the moving bracket 302 to slide on the moving track 301, a steering mechanism 304 connected with the moving track 301, the steering mechanism 304 can move through the moving track 301, a sample carrying frame 305 is in driving connection with the steering mechanism 304, the length of the sample carrying frame 305 is more than twice the length of a sample tube 50, a limit bar is arranged at a liquid collecting end 306 of the sample carrying frame 305, when the steering mechanism 304 drives the sample carrying frame 305 to rotate to a receiving position, an entering end of the sample carrying frame 305 is positioned above the liquid collecting end 306, the inclined angle of the sample carrying frame 305 is the same as that of the placing surface 21, the sample tube 50 can slide to the liquid collecting end 306 through the entering end, the steering mechanism 304 can drive the sample carrying frame 305 to rotate to a horizontal position, when the steering mechanism 304 drives the sample carrying frame 305 to rotate to a discharging position, the entering end of the sample carrying frame 305 is positioned below the liquid collecting end 306, the inclined angle of the sample carrying frame 305 is the same as that the inclined surface of the sample carrying frame 305 can enter the liquid collecting end 41 through the liquid collecting end 41. The rotating mechanism comprises a rotating motor.
When the sample moving mechanism 30 works, the moving bracket 302 is connected with the moving track 301, and the synchronous belt assembly 303 drives the moving bracket 302 to slide on the moving track 301, so as to drive the steering mechanism 304 connected with the moving bracket to move, and the steering mechanism 304 drives the sample carrying frame 305 to move. When the steering mechanism 304 drives the sample carrying frame 305 to rotate to the material receiving position, the inlet end of the sample carrying frame 305 is positioned above the liquid collecting end 306, and the inclination angle is the same as the placing surface 21 of the release mechanism 20, so that the sample tube 50 sliding out of the placing surface 21 of the release mechanism 20 can smoothly slide to the liquid collecting end 306 through the inlet end, and when sampling is performed, the sample carrying frame 305 moves out of the sealed housing 10, and the liquid inlet valve of the sample tube 50 is opened to collect the sample. After sampling is completed, the sample moving mechanism 30 is operated in reverse to retract the sample carrying frame 305 into the sealed housing 10. When the sample tube 50 is to be transferred to the receiving mechanism 40, the steering mechanism 304 drives the sample carrying frame 305 to rotate to the discharging position, at this time, the inlet end of the sample carrying frame 305 is located below the liquid collecting end 306, the inclination angle is the same as that of the receiving surface 41, and the sample tube 50 can slide from the liquid collecting end 306 and enter the receiving surface 41 through the inlet end.
In some embodiments, the device further comprises a collecting barrel 60, the collecting barrel 60 is arranged at the mounting opening of the sealed shell 10, the opening of the collecting barrel 60 faces outwards, a sample opening 61 is formed in the bottom of the collecting barrel 60, the inner space of the collecting barrel 60 is communicated with the inside of the sealed shell 10 through the sample opening 61, the sample tube 50 can penetrate through the sample opening 61, and an electric valve 62 is arranged on the collecting barrel 60 and used for opening and closing the sample opening 61. The collecting vessel 60 is arranged at the mounting opening of the sealed housing 10, when the sample moving mechanism 30 moves the sample tube 50 to the sampling position, namely, extends out of the sealed housing 10, the sample opening 61 at the bottom of the collecting vessel 60 is opened, the sample tube 50 passes through the sample opening 61 to sample, the sample moving mechanism 30 withdraws the sample tube 50 after the sampling is completed, the sample opening 61 is closed, the electric valve 62 on the collecting vessel 60 controls the opening and closing of the sample opening 61 in the whole process, the relative stability of the internal environment of the sealed housing 10 is ensured, and the entry of external impurities is avoided.
On one hand, the collecting barrel 60 provides a transition space for sampling the sample tube 50 outside the sealed shell 10, so that sampling operation is more standard, and on the other hand, the electric valve 62 controls the opening and closing of the sample port 61, so that the tightness of the device is enhanced, the interference of external factors on sample collection is reduced, the accuracy of the collected samples is ensured, and a foundation is laid for the follow-up accurate detection of the underground water pollution condition of the mining area.
The sample moving mechanism 30 and the collecting barrel 60 are provided with a water collecting tank 63 below, and the outer wall of the middle part of the sample bearing frame 305 is provided with a water retaining bar. A water collecting tank 63 is disposed below the sample moving mechanism 30 and the collecting tank 60, and liquid enters or drops during sampling of the sample tube 50 and is collected by the water collecting tank 63. The middle outer wall of the sample carrying frame 305 is provided with a water bar, and the liquid on the sample carrying frame 305 is guided to flow into the water receiving tank 63.
The water collecting tank 63 is matched with the water retaining bar, so that liquid pollution components and samples in the sampling process are effectively prevented, damages such as corrosion or short circuit to other accurate components in the device are avoided, the service life of the device is prolonged, meanwhile, the inside of the device is kept clean, cleaning and maintenance work is reduced, and the device is ensured to continuously and stably run.
In some alternative embodiments, the sampling device for mining area groundwater pollution monitoring further includes a wiping mechanism 70 disposed above the sample movement mechanism 30 configured to wipe residual liquid on the sample tube 50.
Specifically, the wiping mechanism 70 includes a wiping cloth tape 701 and a wiping drive assembly configured to drive the wiping cloth tape 701 to wipe residual liquid on the sample tube. Illustratively, the wiping tape 701 has a revolving portion 703 parallel to the sample carrying frame 305 above the sample carrying frame 305, and an extending portion extending downward from the end of the revolving portion, a retaining portion extending vertically upward from the end of the extending portion, and the wiping tape 701 includes a plastic film portion and a water absorbing paper portion, which are disposed at intervals and integrally continuous.
Further, the wiping driving assembly further comprises a linear driver, an inner bracket 702, a cloth belt motor and a lifting motor, wherein the inner bracket 702 is connected with the linear driver and is uniformly arranged along the arrangement direction of the wiping cloth belt 701 and used for supporting the wiping cloth belt 701, the cloth belt motor is in driving connection with the wiping cloth belt 701 and used for driving the wiping cloth belt 701, and the lifting motor is connected with the linear driver.
When the sample tube 50 is sampled, the rotary part 703 of the wiping cloth belt 701 can be abutted on the sample tube 50 at the liquid collecting end 306, and the liquid inlet is exposed, and the cloth belt motor drives the rotary part 703 of the wiping cloth belt 701 in advance to move, so that the wiping cloth belt 701 of the rotary part 703 is a plastic film part;
After the sample tube 50 is sampled, the wiping cloth belt 701 moves upwards, and the cloth belt motor drives the rotary part 703 of the wiping cloth belt 701 to move, so that the wiping cloth belt 701 of the rotary part 703 is a water absorbing paper part, the wiping cloth belt 701 moves downwards to be closely attached to the whole sample tube 50, the wiping cloth belt 701 moves upwards, and when the sample tube 50 slides, the downward extending part moves to assist the movement of the sample tube 50 out, wherein the downward extending part is the same as the rotary part 703 in material.
The wiping mechanism 70 is located above the sample moving mechanism 30, and when the sample tube 50 is sampled, the rotating portion 703 of the wiping cloth belt 701 is driven by the cloth belt motor to move in advance, so that the rotating portion 703 is a plastic film portion, at this time, the rotating portion 703 abuts against the sample tube 50 at the liquid collecting end 306 and exposes out of the liquid inlet, and most of the surface of the plastic film portion can be prevented from being contacted with external liquid to remain liquid when the sample tube 50 is sampled. After the sampling is finished, the lifting motor drives the linear driver to enable the wiping cloth belt 701 to move upwards, the cloth belt motor drives the rotary part 703 to move again to enable the rotary part 703 to be changed into a water absorbing paper part, then the wiping cloth belt 701 moves downwards to be closely attached to the whole sample tube 50, residual liquid on the sample tube 50 is sucked dry, finally the wiping cloth belt 701 moves upwards, the downward extending part of the wiping cloth belt moves out of the sample tube 50 in a boosting way when the sample tube 50 slides, and the extending part and the rotary part 703 are made of the same material, so that the liquid on the side surface of the sample tube 50 can be sucked dry. When the sample tube 50 is sampled, the end part of the sample tube 50, the body part and the part of the sample carrying frame 305 are exposed to the external liquid, so that the liquid residual surface is reduced, and the side surfaces and the bottom surface of the sample carrying frame 305 at the two sides of the sample tube 50 are protected to be contacted with the liquid.
The sample port 61 is provided with the rubber pad, increases the tight tightness of sample tube 50 and sample port 61, prevents liquid from analyzing from sample port 61 and getting into sealed shell 10, and simultaneously, gyration 703 because be equipped with the inner support 702 of inside lining, gyration 703 butt sample tube 50 can fix sample tube 50 on the one hand for sample tube 50 can not move in sample carrying frame 305, and the time of passing through sample port 61 is motionless, on the other hand can cover the partial top surface of sample tube 50, prevents water pollution.
The distribution of the plastic film part and the water absorbing paper part is in an ABAB type, and the plastic film part and the water absorbing paper part form a complete strip, and the rotation arrangement of the plastic film part and the water absorbing paper part in the rotation part 703 can be adjusted by driving of a cloth belt motor.
The arrangement of the linear driver and the lifting motor can control the wiping mechanism 70 to move in a direction parallel to the sample moving mechanism 30 as a whole, so that the two are matched.
The application also provides a sampling method for monitoring the pollution of the underground water of the mining area, which uses the sampling device for monitoring the pollution of the underground water of the mining area and comprises the following steps:
When sampling is started, the sealed housing 10 is placed in a water body to be sampled in the hydrological monitoring well, the release motor 204 is started to drive the release disc 201 to rotate so as to enable the sampled sample tube 50 to rotate to a release position, the clamping mechanism 202 acts, the clamping motor drives the clamping piece 203 to retract, the extension part of the clamping piece is used for loosening the fixation of the sample tube 50, and the sample tube 50 slides out to the sample bearing frame 305 entering end of the sample moving mechanism 30 along the lower side of the placement surface 21 under the action of gravity and enters the liquid collecting end 306;
Starting the sample moving mechanism 30, driving the moving bracket 302 to slide along the moving track 301 by the synchronous belt assembly 303, driving the sample bearing frame 305 connected with the steering mechanism 304 to move, opening the sample port 61, enabling the sample tube 50 to extend out of the sealed shell 10, opening a liquid inlet valve of the sample tube 50, and enabling groundwater to smoothly enter the sample tube 50 through the liquid inlet under the action of water pressure;
After the sampling is completed, the liquid inlet valve is closed, the sample moving mechanism 30 is started again, the synchronous belt assembly 303 drives the moving bracket 302 to reversely slide along the moving track 301, the extending sample carrying frame 305 is retracted into the sealed shell 10, and then the sample port 61 is closed;
The sample moving mechanism 30 continues to move, the sample carrying frame 305 is sent to the vicinity of the material receiving surface 41, the inclination angle of the sample carrying frame 305 is controlled to be the same as that of the material receiving surface 41, the sample tube 50 slides from the liquid collecting end 306 under the action of gravity, enters the material receiving frame 403 of the material receiving surface 41 through the entering end, and the ends of the sample tube 50 and the material receiving frame 403 are provided with corresponding magnets which are adsorbed and fixed;
The sample moving mechanism 30 returns to the initial position, and repeats the above operation to perform the next sampling.
In the sampling process, the release mechanism 20, the sample moving mechanism 30 and the receiving mechanism 40 work cooperatively, the sample tube 50 is transferred orderly among the mechanisms by gravity, automatic continuous sampling is realized, and the sampling efficiency is high. And when in different depth positions, the single sample tube 50 is used for sampling once, and after continuous sampling for a plurality of times, the cross contamination problem between water samples can be avoided, so that the purity of the samples is ensured to the greatest extent, and the collected samples can accurately reflect the real pollution conditions of underground water in different positions and different depths in a mining area.
The foregoing detailed description of the application has been presented for purposes of illustration and description, and it should be understood that the application is not limited to the particular embodiments disclosed, but is intended to cover all modifications, equivalents, alternatives, and improvements within the spirit and principles of the application.
Claims (10)
1. A sampling device for mining area groundwater pollution monitoring, comprising:
a sealed housing;
the device comprises a sealed shell, a release mechanism, a liquid inlet valve, a liquid outlet and a liquid outlet, wherein the sealed shell is internally provided with a plurality of sealed containers, the sample container is arranged on a placement surface of the release mechanism, and a liquid inlet is arranged on the sample container and is controlled to be opened and closed by the liquid inlet valve;
A sample moving mechanism disposed in the sealed housing, configured to receive the sample tube slid out of the placement surface, and move the sample tube out of the sealed housing to collect a water body sample;
The material receiving mechanism is arranged in the sealed shell and is positioned below the release mechanism, the material receiving mechanism is provided with a material receiving surface, the material receiving surface has an included angle with the horizontal plane, the included angle is an acute angle, and the sample moving mechanism can move the sample tube after collecting the water body sample onto the material receiving surface from one side with high material receiving surface under the action of gravity;
Wherein the inclination direction of the discharging side of the placing surface is opposite to the inclination direction of the receiving side of the receiving surface.
2. The sampling device for mining area groundwater pollution monitoring according to claim 1, wherein the release mechanism comprises:
The disk surface of the release disk comprises the placement surface, a plurality of sample tubes are annularly arranged on the placement surface of the release disk, and two ends of each sample tube are arranged in the radial direction of the release disk;
A release motor drivingly connected to the center of the release disc and configured to drive the release motor to rotate;
a clamping mechanism disposed on the release disc configured to secure the sample tube and release the sample tube when the sample tube is in a release position;
and the directional rail is arranged on the release disc and is respectively positioned at two sides of the sample tube, and the sample tube is in sliding connection with the directional rail.
3. A sampling device for mining area groundwater pollution monitoring according to claim 2, wherein the clamping mechanism comprises a clamping motor and a clamping member, the clamping motor being connected to the other disc face opposite the placement face of the release disc, the clamping member being threaded through the release disc and being in driving connection with the clamping motor, the clamping member having an extension portion which is capable of abutting onto the sample tube when the clamping motor drives the clamping member to retract.
4. The sampling device for mining area groundwater pollution monitoring according to claim 1, wherein the receiving mechanism comprises a receiving disc, a receiving motor and a receiving frame, the disc surface of the receiving disc comprises a receiving surface, the receiving motor is in driving connection with the center of the receiving disc, the receiving frame comprises a plurality of receiving frames, the receiving surface is annularly arranged on the receiving frame, two ends of the receiving frame are arranged in the radial direction of the receiving surface, an inlet is arranged at one outward end of the receiving frame, the receiving frame is matched with the sample tube, and corresponding magnets are arranged at the end of the sample tube and the inner wall of one end of the receiving frame.
5. The sampling device for mining area groundwater pollution monitoring of claim 1, wherein the sample moving mechanism comprises:
A moving track;
the movable support is connected with the movable rail;
A timing belt assembly disposed on the moving rail and configured to drive the moving bracket to slide on the moving rail;
the steering mechanism is connected with the moving track and can move through the moving track;
And the sample bearing frame is in driving connection with the steering mechanism.
6. The sampling device for mining area groundwater pollution monitoring according to claim 5, further comprising a collecting barrel, wherein a sample port is arranged at the bottom of the collecting barrel, the inner space of the collecting barrel is communicated with the inside of the sealed shell through the sample port, the sample pipe can pass through the sample port, and an electric valve is arranged on the collecting barrel and used for opening and closing the sample port.
7. The sampling device for mining area groundwater pollution monitoring according to claim 6, wherein a water collecting tank is arranged below the sample moving mechanism and the collecting barrel, and a water retaining bar is arranged on the outer wall of the middle part of the sample bearing frame.
8. The sampling device for mining area groundwater pollution monitoring according to claim 6, further comprising a wiping mechanism disposed above the sample movement mechanism configured to wipe residual liquid on the sample tubes.
9. The sampling device for mining area groundwater contamination monitoring according to claim 8, wherein the wiping mechanism comprises a wiping cloth strip and a wiping drive assembly configured to drive the wiping cloth strip to wipe residual liquid on the sample tube.
10. A sampling method for mining area groundwater pollution monitoring, characterized in that the sampling device for mining area groundwater pollution monitoring according to any one of claims 1 to 9 is used;
The sampling method comprises the following steps:
When sampling is started, the sealed shell is placed in a water body to be sampled in the hydrological monitoring well, the release motor is started to drive the release disc to rotate, the sampled sample tube is rotated to a release position, the clamping mechanism acts, the clamping motor drives the clamping piece to retract, the extension part of the clamping piece is loose to fix the sample tube, and the sample tube slides out to the sample bearing frame entering end of the sample moving mechanism along the side with a lower placement surface under the action of gravity and enters the liquid collecting end;
starting a sample moving mechanism, driving a moving bracket to slide along a moving track by a synchronous belt assembly, driving a sample bearing frame connected with a steering mechanism to move, extending a sample tube out of a sealed shell, opening a sample tube liquid inlet valve, and enabling groundwater to enter the sample tube under the action of water pressure;
After the sampling is finished, closing a liquid inlet valve, starting the sample moving mechanism again, driving the moving bracket to reversely slide along the moving track by the synchronous belt assembly, retracting the extended sample bearing frame into the sealed shell, and then closing the sample port;
The sample moving mechanism continues to move, the sample bearing frame is sent to the receiving surface, the inclination angle of the sample bearing frame is controlled to be the same as that of the receiving surface, the sample tube slides from the liquid collecting end under the action of gravity and enters the receiving frame of the receiving surface, and the end parts of the sample tube and the receiving frame are provided with corresponding magnets which are adsorbed and fixed;
the sample moving mechanism returns to the initial position and prepares for the next sampling.
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| CN119715030B (en) | 2025-06-27 |
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