CN110907623A - Soil polycyclic aromatic hydrocarbon detects uses dewatering extraction element - Google Patents
Soil polycyclic aromatic hydrocarbon detects uses dewatering extraction element Download PDFInfo
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- CN110907623A CN110907623A CN201911248741.0A CN201911248741A CN110907623A CN 110907623 A CN110907623 A CN 110907623A CN 201911248741 A CN201911248741 A CN 201911248741A CN 110907623 A CN110907623 A CN 110907623A
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- 239000002689 soil Substances 0.000 title claims abstract description 67
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 title claims abstract description 30
- 238000000605 extraction Methods 0.000 title claims description 11
- 238000001514 detection method Methods 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 239000007788 liquid Substances 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 15
- 125000003003 spiro group Chemical group 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 7
- 238000003809 water extraction Methods 0.000 claims 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract description 9
- 239000005416 organic matter Substances 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/405—Concentrating samples by adsorption or absorption
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- Health & Medical Sciences (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention is suitable for the technical field of soil detection, and provides a dewatering and extracting device for soil polycyclic aromatic hydrocarbon detection, which comprises a body assembly for grinding soil and heating soil and an absorption assembly for absorbing water vapor in the body assembly, wherein the absorption assembly comprises a first air outlet pipe and a detection box, the first air outlet pipe is positioned on one side of a feeding pipe, the other end of the first air outlet pipe is provided with an air pump, and the detection box is positioned on one side of the air pump, which is far away from the first air outlet pipe; through setting up the absorption subassembly makes the air pump passes through first outlet duct absorbs the steam that soil evaporates, and passes through anhydrous sodium sulfate in the water removal case carries out the dewatering, is passing through then the organic matter in the extract absorption gas in the detection case is being disconnected at last the power of second solenoid valve makes extract in the detection case passes through the drain pipe enters into in the cavity to reduce polycyclic aromatic hydrocarbon's volatilization, increase the accuracy of experiment.
Description
Technical Field
The invention belongs to the technical field of soil detection, and particularly relates to a dewatering and extracting device for soil polycyclic aromatic hydrocarbon detection.
Background
In the polycyclic aromatic hydrocarbon's to soil testing process, the soil of sampling need carry out the dewatering earlier, and because polycyclic aromatic hydrocarbon in the soil has certain volatility, consequently, it is more difficult when carrying out the drying to soil, traditional soil drying dewatering has two kinds of modes: the method comprises the steps of adopting standing natural air drying for dewatering and adopting anhydrous sodium sulfate for dewatering, firstly sampling soil from the soil, then selecting some soil from the sampled soil for processing, then putting the anhydrous sodium sulfate into the soil, then putting the soil and the anhydrous sodium sulfate into a grinding tank for manual grinding, enabling the soil to be ground into small particles, and simultaneously enabling the anhydrous sodium sulfate to be combined with water by utilizing sodium ions to form hydrated sodium ions, so that the water in the soil can be removed.
The existing soil dewatering mode is that only a small amount of soil is taken from sampled soil to be detected, but not all the sampled soil can be used for detection, and in the process of manual grinding, polycyclic aromatic hydrocarbon can volatilize, so that the detection result is possibly inaccurate.
Disclosure of Invention
The invention provides a dewatering and extracting device for soil polycyclic aromatic hydrocarbon detection, and aims to solve the problems that sampling detection cannot be performed on all soil, and a detection result is inaccurate due to volatilization of polycyclic aromatic hydrocarbon in a grinding process.
The dewatering extraction device for soil polycyclic aromatic hydrocarbon detection comprises a body assembly and an absorption assembly, wherein the body assembly is used for grinding soil and heating the soil, the absorption assembly is used for absorbing water vapor in the body assembly, the body assembly comprises a cavity, the top end of the cavity is fixedly communicated with a feed pipe, a heating pipe is embedded in one side of the cavity, and the heating pipe is electrically connected with an external power supply;
the absorbing component comprises a first outlet pipe and a detection box, the first outlet pipe is located on one side of the inlet pipe, the one end of the first outlet pipe is communicated with the cavity in a fixed mode, the other end of the first outlet pipe is provided with an air pump, the first outlet pipe is communicated with the air inlet of the air pump in a fixed mode, the detection box is located on one side of the first outlet pipe away from the air pump and communicated with the air outlet of the air pump in a fixed mode, and the upper surface of the detection box is fixedly communicated with a liquid inlet pipe.
Preferably, the body subassembly includes vibrating motor and installation rope, vibrating motor keeps away from the cavity is connected one side of heating pipe, and with cavity fixed connection, the installation rope is located on the inside lower surface of cavity, just the one end of installation rope with cavity fixed connection, the other end of installation rope is fixed with the grinding ball, vibrating motor electric connection external power source.
Preferably, the body subassembly still includes first intake pipe, first intake pipe is located vibrating motor's top, and with the fixed intercommunication of cavity, first intake pipe keep away from with the one end spiro union that the cavity is connected has the lid of admitting air, the top spiro union of inlet pipe has the feeding lid.
Preferably, an activated carbon layer is fixed on the inner side wall of the first air inlet pipe;
the bottom of the cavity is communicated with a discharge box, the discharge box is in threaded connection with the cavity, the bottom of the discharge box is fixedly communicated with a discharge pipe, and a discharge cover is in threaded connection with one end, far away from the end connected with the discharge box, of the discharge pipe;
and a filter membrane is fixed in the discharge box.
Preferably, the air pump with be provided with between the detection case and remove the water tank, just the detection case passes through remove the water tank with the fixed intercommunication of air pump, the last fixed surface who removes the water tank intercommunication has into thing pipe, the top spiro union of advancing the thing pipe has into thing lid, the top spiro union of feed liquor pipe has the feed liquor lid.
Preferably, the absorption assembly further comprises a second air inlet pipe, one end of the second air inlet pipe is far away from one side, connected with the water removal tank, of the detection tank and is fixedly communicated with the detection tank, and the other end of the second air inlet pipe is fixedly communicated with the cavity;
the second air inlet pipe is of an inverted L shape.
Preferably, the upper surface of the second air inlet pipe is inlaid with a first electromagnetic valve, the first electromagnetic valve is fixedly communicated with the second air inlet pipe, and the first electromagnetic valve is electrically connected with an external power supply.
Preferably, the absorption assembly further comprises a liquid outlet pipe, and the liquid outlet pipe penetrates through the upper surface of the cavity and the lower surface of the detection box and is fixedly connected with the cavity;
the outer side wall of the liquid outlet pipe is inlaid with a second electromagnetic valve, the second electromagnetic valve is fixedly communicated with the liquid outlet pipe, and the second electromagnetic valve is electrically connected with an external power supply.
Preferably, an air storage pipe is fixed on the upper surface inside the cavity, a plurality of second air outlet pipes are connected to the lower surface of the air storage pipe in a threaded mode, and the upper surface of the air storage pipe is fixedly communicated with the first air outlet pipe.
Compared with the prior art, the invention has the beneficial effects that: by arranging the body assembly, measured soil is poured into the cavity through the feeding pipe, the grinding balls are driven by the vibration motor to grind the soil, and meanwhile, the temperature in the cavity is increased through the heating pipe, so that moisture in the soil is evaporated; through setting up the absorption subassembly makes the air pump passes through first outlet duct absorbs the steam that soil evaporated, and passes through anhydrous sodium sulfate in the water removal case carries out the dewatering, is passing through after organic matter in the extract absorption gas in the detection case is at the disconnection at last the power of second solenoid valve makes extract in the detection case passes through the drain pipe enters into draw polycyclic aromatic hydrocarbon in all soils in the cavity, thereby under the effect of this device, can grind and heat whole soils to reduce polycyclic aromatic hydrocarbon's volatilization, increase the accuracy of experiment.
Drawings
FIG. 1 is a schematic view of the internal structure of the chamber of the present invention;
FIG. 2 is a schematic view showing the internal structure of a detection tank in the absorbent assembly of the present invention;
FIG. 3 is a schematic view of the internal structure of a dewatering tank in the absorbent assembly of the present invention;
FIG. 4 is a schematic view of the interior of the first inlet tube of the body assembly of the present invention;
FIG. 5 is a schematic view of the internal structure of the discharge box of the body assembly of the present invention;
in the figure: 1-body component, 11-cavity, 111-gas storage pipe, 112-second gas outlet pipe, 12-feed pipe, 121-feed cover, 13-heating pipe, 14-vibration motor, 15-installation rope, 16-grinding ball, 17-first gas inlet pipe, 171-gas inlet cover, 172-activated carbon layer, 18-discharge box, 181-discharge pipe, 182-discharge cover, 19-filter membrane, 2-absorption component, 21-first gas outlet pipe, 22-gas pump, 23-detection box, 231-liquid inlet pipe, 232-liquid inlet cover, 24-water removal box, 241-feed pipe, 242-feed cover, 25-second gas inlet pipe, 26-first electromagnetic valve, 27-liquid outlet pipe and 28-second electromagnetic valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-5, the dewatering extraction device for soil polycyclic aromatic hydrocarbon detection comprises a body assembly 1 for grinding soil and heating soil and an absorption assembly 2 for absorbing water vapor in the body assembly 1, wherein the body assembly 1 comprises a cavity 11, the top end of the cavity 11 is fixedly communicated with a feed pipe 12, a heating pipe 13 is embedded on one side of the cavity 11, and the heating pipe 13 is electrically connected with an external power supply;
the absorption assembly 2 comprises a first air outlet pipe 21 and a detection box 23, the first air outlet pipe 21 is located on one side of the feeding pipe 12, one end of the first air outlet pipe 21 is fixedly communicated with the cavity 11, an air pump 22 is arranged at the other end of the first air outlet pipe 21, the first air outlet pipe 21 is fixedly communicated with an air inlet of the air pump 22, the detection box 23 is located on one side, away from the first air outlet pipe 21, of the air pump 22 and is fixedly communicated with an air outlet of the air pump 22, and a liquid inlet pipe 231 is fixedly communicated with the upper surface of the detection box 23.
In the embodiment, the feeding pipe 12 is arranged, so that an operator can conveniently pour soil into the cavity 11 under the action of the feeding pipe 12, and the heating pipe 13 is arranged to heat the heating pipe 13 after being electrified, so that the temperature in the cavity 11 is increased under the action of heat transfer, and moisture in the soil is heated to be changed into water vapor;
by arranging the first air outlet pipe 21 and the air pump 22, when the air pump 22 works, water vapor generated in the cavity 11 is continuously absorbed through the first air outlet pipe 21; through setting up detection case 23 for detection case 23 stores the extract, thereby under the effect of extract, absorbs the organic matter in the gas, and wherein this organic matter is polycyclic aromatic hydrocarbon, and when the moisture content in the soil was all evaporated, the power of disconnection second solenoid valve 28 for the extract in the detection case 23 passes through drain pipe 27 and flows into cavity 11, thereby reduce polycyclic aromatic hydrocarbon's loss by a wide margin, improves the accuracy of experiment.
In this embodiment, the liquid inlet cover 232 and the object inlet cover 242 are unscrewed, then the extracting solution is poured into the detection box 23, the anhydrous sodium sulfate is put into the water removal box 24, after the covers are screwed down, soil is poured into the cavity 11 through the feeding pipe 12 after the operation is completed, and the heating pipe 13 and the vibrating motor 14 are started, so that the heating pipe 13 raises the temperature in the cavity 11, and the vibrating motor 14 vibrates, so that the grinding balls 16 move, and the soil is continuously ground; then, the air pump 22 is started, so that the air pump 22 continuously absorbs the water vapor in the cavity 11 through the first air outlet pipe 21, the water vapor is sent into the water removal tank 24, the water in the water vapor is removed under the action of anhydrous sodium sulfate, the water vapor is changed into gas, the gas flows into the detection tank 23, organic matters in the gas are absorbed under the action of the extracting solution, then the power supply of the first electromagnetic valve 26 is disconnected, and the gas flows into the cavity 11 through the second air inlet pipe 25, so that internal circulation is realized; when the moisture in the soil is evaporated, the power supply of the second electromagnetic valve 28 is cut off, so that the extracting solution in the detection box 23 flows into the cavity 11 through the liquid outlet pipe 27, the extracting solution and the polycyclic aromatic hydrocarbon in the extracting solution are mixed with the sampled soil again, the polycyclic aromatic hydrocarbon cannot cause waste, the extracting solution can be used for extracting other polycyclic aromatic hydrocarbon in the soil, and thus all polycyclic aromatic hydrocarbon in the soil is extracted from the extracting solution, the extracting solution is filtered under the action of the filter membrane 19, and finally the discharging box 18 is detached and taken out of the soil, and the polycyclic aromatic hydrocarbon in the extracting solution can be detected.
Further, body subassembly 1 includes vibrating motor 14 and installation rope 15, and vibrating motor 14 keeps away from one side that cavity 11 connects heating pipe 13 to with cavity 11 fixed connection, installation rope 15 is located the inside lower surface of cavity 11, and the one end and the cavity 11 fixed connection of installation rope 15, and the other end of installation rope 15 is fixed with grinding ball 16, vibrating motor 14 electric connection external power source.
In this embodiment, by providing the vibration motor 14, wherein the model of the vibration motor 14 is YZD, when the vibration motor 14 is started, the shaft and the eccentric block of the vibration motor 14 rotate at high speed to generate centrifugal force, so as to obtain exciting force, and drive the grinding balls 16 to move, the purpose of grinding soil is achieved, and by providing the installation rope 15, the installation rope 15 buffers the movement of the grinding balls 16, so that the soil is ground more uniformly.
Further, body subassembly 1 still includes first intake pipe 17, and first intake pipe 17 is located vibrating motor 14's top to with the fixed intercommunication of cavity 11, first intake pipe 17 keeps away from the one end spiro union of being connected with cavity 11 and has an air inlet lid 171, the top spiro union of inlet pipe 12 has feed lid 121.
In the present embodiment, by providing the first air intake pipe 17, the outside air is made to flow into the cavity 11 through the first air intake pipe 17, thereby buffering the pressure inside the cavity 11; by providing the intake cover 171 such that the operator only needs to unscrew the intake cover 171 to allow the external air to flow into the cavity 11, and screwing the intake cover 171 such that the external air cannot flow into the cavity 11, it is controlled whether the external air can enter into the cavity 11 through the intake cover 171.
Further, an activated carbon layer 172 is fixed on the inner side wall of the first air inlet pipe 17;
the bottom of the cavity 11 is communicated with a discharge box 18, the discharge box 18 is in threaded connection with the cavity 11, the bottom of the discharge box 18 is fixedly communicated with a discharge pipe 181, and a discharge cover 182 is in threaded connection with one end, far away from the end connected with the discharge box 18, of the discharge pipe 181;
a filter membrane 19 is fixed inside the discharge box 18.
In the embodiment, the active carbon layer 172 is arranged, so that foreign matters in the air are adsorbed under the action of the active carbon, and are prevented from entering the cavity 11 to influence the experimental result;
by arranging the discharging box 18, the ground soil enters the discharging box 18, so that the extracting solution in the soil is filtered out from the membrane holes under the action of the filter membrane 19 and flows out through the discharging pipe 181; through setting up out workbin 18 and cavity 11 spiro union to the convenience is pulled down workbin 18, makes things convenient for operating personnel to take out soil, through setting up ejection of compact lid 182, makes under ejection of compact lid 182's effect, the outflow of control liquid.
Further, a water removing tank 24 is arranged between the air pump 22 and the detection tank 23, the detection tank 23 is fixedly communicated with the air pump 22 through the water removing tank 24, a material inlet pipe 241 is fixedly communicated with the upper surface of the water removing tank 24, a material inlet cover 242 is screwed at the top end of the material inlet pipe 241, and a material inlet cover 232 is screwed at the top end of the material inlet pipe 231.
In the embodiment, an air pump 22 is provided, wherein the model of the air pump 22 is EHS-919, so that under the action of the air pump 22, water vapor in the cavity 11 is absorbed through the first air outlet pipe 21, and the water vapor is pressurized and sent to the water removal tank 24 for water removal; by providing an inlet pipe 241, the anhydrous sodium sulfate is fed into the water removing tank 24 through the inlet pipe 241; the object placing cover 242 is arranged, so that the object is controlled to be placed under the action of the object placing cover 242; by arranging the liquid inlet cover 232, the inflow of liquid and the outflow of gas are controlled under the action of the liquid inlet cover 232.
Further, the absorption assembly 2 further comprises a second air inlet pipe 25, one end of the second air inlet pipe 25 is far away from one side of the detection box 23, which is connected with the water removal box 24, and is fixedly communicated with the detection box 23, and the other end of the second air inlet pipe 25 is fixedly communicated with the cavity 11;
the second intake pipe 25 is of an inverted L shape.
In the present embodiment, the second air inlet pipe 25 is provided, so that the gas in the detection box 23 flows into the cavity 11 through the second air inlet pipe 25 to realize internal circulation;
for falling the L type through setting up second intake pipe 25 for it is convenient when the pipeline of falling the L type is dismantled and is installed, and stability is strong simultaneously, prevents the emergence of gas leakage.
Further, a first electromagnetic valve 26 is embedded in the upper surface of the second air inlet pipe 25, the first electromagnetic valve 26 is fixedly communicated with the second air inlet pipe 25, and the first electromagnetic valve 26 is electrically connected with an external power supply.
In the present embodiment, by providing the first electromagnetic valve 26 which, when energized, generates excitation internally, the air inlet and the air outlet are communicated; when the electromagnetic valve is powered off, the electromagnetic valve is reset through the spring, so that the air outlet is closed; so as to control whether the gas can flow into the chamber 11 or not under the action of the first solenoid valve 26.
Further, the absorption assembly 2 further comprises a liquid outlet pipe 27, and the liquid outlet pipe 27 penetrates through the upper surface of the cavity 11 and the lower surface of the detection box 23 and is fixedly connected with the cavity 11;
the outer side wall of the liquid outlet pipe 27 is inlaid with a second electromagnetic valve 28, the second electromagnetic valve 28 is fixedly communicated with the liquid outlet pipe 27, and the second electromagnetic valve 28 is electrically connected with an external power supply.
In the present embodiment, by providing the liquid outlet pipe 27, the extracting liquid in the detection box 23 flows into the cavity 11 through the liquid outlet pipe 27;
through setting up second solenoid valve 28 for under the effect of second solenoid valve 28, the outflow of control extract, thereby make things convenient for operating personnel to use.
Further, an air storage pipe 111 is fixed on the upper surface inside the cavity 11, a plurality of second air outlet pipes 112 are screwed on the lower surface of the air storage pipe 111, and the upper surface of the air storage pipe 111 is fixedly communicated with the first air outlet pipe 21.
In the embodiment, by arranging the air storage pipe 111, when the air pump 22 is started, the water vapor in the cavity 11 continuously enters the air storage pipe 111 through the second air outlet pipe 112, so that the inflow of the water vapor is buffered under the action of the air storage pipe 111, thereby reducing the water vapor in the dripping soil on one hand, increasing the water removal precision in the water removal tank 24 on the other hand, and preventing the backflow air from containing a large amount of water.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. Soil polycyclic aromatic hydrocarbons detects uses dewatering extraction element, including body subassembly (1) that is used for grinding soil and heating soil and absorption assembly (2) that are used for absorbing vapor in body subassembly (1), its characterized in that: the body assembly (1) comprises a cavity (11), the top end of the cavity (11) is fixedly communicated with a feeding pipe (12), a heating pipe (13) is embedded in one side of the cavity (11), and the heating pipe (13) is electrically connected with an external power supply;
absorbing component (2) include first outlet duct (21) and detection case (23), first outlet duct (21) are located one side of inlet pipe (12), just the one end of first outlet duct (21) with the fixed intercommunication of cavity (11), the other end of first outlet duct (21) is provided with air pump (22), just first outlet duct (21) with the fixed intercommunication of air inlet of air pump (22), detection case (23) are located air pump (22) are kept away from one side of first outlet duct (21), and with the fixed intercommunication of gas outlet of air pump (22), the last fixed surface intercommunication of detection case (23) has feed liquor pipe (231).
2. The water removal and extraction device for soil polycyclic aromatic hydrocarbon detection as claimed in claim 1, wherein: body subassembly (1) includes vibrating motor (14) and installation rope (15), vibrating motor (14) are kept away from cavity (11) is connected one side of heating pipe (13), and with cavity (11) fixed connection, installation rope (15) are located on the inside lower surface of cavity (11), just the one end of installation rope (15) with cavity (11) fixed connection, the other end of installation rope (15) is fixed with ball (16), vibrating motor (14) electric connection external power source.
3. The water removal and extraction device for soil polycyclic aromatic hydrocarbon detection as claimed in claim 2, wherein: body subassembly (1) still includes first intake pipe (17), first intake pipe (17) are located the top of vibrating motor (14), and with the fixed intercommunication in cavity (11), first intake pipe (17) keep away from with the one end spiro union that cavity (11) are connected has air inlet cover (171), the top spiro union of inlet pipe (12) has feed cover (121).
4. The water removal and extraction device for soil polycyclic aromatic hydrocarbon detection as claimed in claim 3, wherein: an activated carbon layer (172) is fixed on the inner side wall of the first air inlet pipe (17);
the bottom of the cavity (11) is communicated with a discharge box (18), the discharge box (18) is in threaded connection with the cavity (11), the bottom of the discharge box (18) is fixedly communicated with a discharge pipe (181), and a discharge cover (182) is in threaded connection with one end, far away from the connection with the discharge box (18), of the discharge pipe (181);
and a filter membrane (19) is fixed in the discharge box (18).
5. The water removal and extraction device for soil polycyclic aromatic hydrocarbon detection as claimed in claim 1, wherein: air pump (22) with be provided with between detection case (23) except that water tank (24), just detection case (23) pass through remove water tank (24) with air pump (22) fixed intercommunication, the last fixed surface that removes water tank (24) communicates has into thing pipe (241), the top spiro union of advancing thing pipe (241) has into thing lid (242), the top spiro union of feed liquor pipe (231) has feed liquor lid (232).
6. The soil polycyclic aromatic hydrocarbons detects with removing water extraction element of claim 5, characterized by: the absorption assembly (2) further comprises a second air inlet pipe (25), one end of the second air inlet pipe (25) is far away from one side, connected with the water removal tank (24), of the detection tank (23) and is fixedly communicated with the detection tank (23), and the other end of the second air inlet pipe (25) is fixedly communicated with the cavity (11);
the second air inlet pipe (25) is of an inverted L shape.
7. The water removal and extraction device for soil polycyclic aromatic hydrocarbon detection as claimed in claim 6, wherein: the upper surface of second intake pipe (25) inlays and has first solenoid valve (26), just first solenoid valve (26) with second intake pipe (25) fixed intercommunication, first solenoid valve (26) electric connection external power source.
8. The water removal and extraction device for soil polycyclic aromatic hydrocarbon detection as claimed in claim 7, wherein: the absorption assembly (2) further comprises a liquid outlet pipe (27), and the liquid outlet pipe (27) penetrates through the upper surface of the cavity (11) and the lower surface of the detection box (23) and is fixedly connected with the cavity (11);
inlay on the lateral wall of drain pipe (27) and have second solenoid valve (28), just second solenoid valve (28) with drain pipe (27) fixed intercommunication, second solenoid valve (28) electric connection external power source.
9. The soil polycyclic aromatic hydrocarbons detects with removing water extraction element of claim 8, characterized by: the upper surface of the interior of the cavity (11) is fixedly provided with a gas storage pipe (111), the lower surface of the gas storage pipe (111) is connected with a plurality of second gas outlet pipes (112) in a threaded mode, and the upper surface of the gas storage pipe (111) is fixedly communicated with the first gas outlet pipe (21).
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| CN201911248741.0A CN110907623A (en) | 2019-12-09 | 2019-12-09 | Soil polycyclic aromatic hydrocarbon detects uses dewatering extraction element |
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| CN207556933U (en) * | 2017-12-20 | 2018-06-29 | 广西大学 | A kind of multiring aromatic hydrocarbon gas collection device of adjustable flow velocity |
| CN109738242A (en) * | 2019-01-11 | 2019-05-10 | 成都市环境保护科学研究院 | Volatile organic contaminant acquisition device in soil |
| CN211348227U (en) * | 2019-12-09 | 2020-08-25 | 江苏新锐环境监测有限公司 | Soil polycyclic aromatic hydrocarbon detects uses dewatering extraction element |
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