CN111170396A - Extraction equipment for detecting heavy metal in seawater - Google Patents
Extraction equipment for detecting heavy metal in seawater Download PDFInfo
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- CN111170396A CN111170396A CN202010013139.5A CN202010013139A CN111170396A CN 111170396 A CN111170396 A CN 111170396A CN 202010013139 A CN202010013139 A CN 202010013139A CN 111170396 A CN111170396 A CN 111170396A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- G01N1/4055—Concentrating samples by solubility techniques
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
-
- 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
- G01N1/4055—Concentrating samples by solubility techniques
- G01N2001/4061—Solvent extraction
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention discloses extraction equipment for detecting heavy metal in seawater, which relates to the technical field of heavy metal in seawater and comprises a base, wherein two sides of the upper surface of the base are fixedly connected with a group of symmetrical side plates, the bottom surface of the base is fixedly connected with four groups of symmetrical support columns, a top plate is arranged above the base, the bottom surface of the top plate is fixedly connected with the upper surfaces of the side plates, and the bottom surface of the top plate is fixedly connected with two groups of symmetrical first connection columns. This an extraction equipment for sea water heavy metal detects passes through control panel control suction pump work, the sea water in the suction pump extraction sea, flow into the inside of extraction box through the inlet tube, the inside extract of extraction liquid incasement portion flows into the inside of extraction box, servo motor drives the puddler and rotates, the puddler drives the stirring leaf and rotates, the stirring leaf stirs mixed liquid, mixed liquid can produce centrifugal force and carry out the direction extrusion of looks extraction incasement wall to the inside board during the stirring, possess the advantage of automatic stirring oscillation extraction sea water heavy metal.
Description
Technical Field
The invention relates to the technical field of seawater heavy metal, in particular to extraction equipment for detecting seawater heavy metal.
Background
Heavy metal ions are wide in source, and relate to the industries of chemical industry, mines, mechanical manufacturing, metallurgy, electronics, instruments and the like, heavy metal pollution has the characteristics of concealment, long-term property, irreversibility and the like, can directly enter water, atmosphere and soil to cause direct pollution, can also mutually migrate in various environments to cause indirect pollution, heavy metals cannot be degraded by microorganisms, can only carry out mutual transformation between forms in the environment, directly or indirectly cause permanent poisoning of a human body to cause various diseases and even carcinogenesis, and at present, in an analysis and determination experiment on a marine water body, the content of the heavy metals such as copper, lead, zinc and the like in the marine water body is often required to be determined.
The method needs manual oscillation extraction, usually needs multiple groups of data for heavy metal extraction and detection of a seawater sample, and analyzes the result to obtain accurate data.
Disclosure of Invention
The invention aims to provide extraction equipment for detecting heavy metals in seawater, which has the advantage of automatically stirring, oscillating and extracting heavy metals in seawater, and solves the problems that manual oscillating extraction is relatively time-consuming and labor-consuming, the efficiency is limited, and the requirements of an analysis and test laboratory cannot be met in many times.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides an extraction equipment for sea water heavy metal detects, includes the base, the curb plate of a set of symmetry of both sides fixedly connected with of base upper surface, the support column of four sets of symmetries of bottom surface fixedly connected with of base, the top of base is provided with the roof, and the upper surface fixed connection of the bottom surface of roof and curb plate, the first connecting column of two sets of symmetries of bottom surface fixedly connected with of roof, the bottom surface fixedly connected with extraction box of first connecting column, the fixed articulated control panel that has in front of curb plate.
Further, the last fixed surface of extraction box installs servo motor, servo motor's output fixedly connected with puddler, and the puddler runs through the upper surface of extraction box and extends to the inside of extraction box, the external fixed surface of puddler is connected with a plurality of stirring leaves, the last fixed surface of base is connected with the cushion, the last fixed surface of cushion installs the suction pump, the fixed intercommunication of output of suction pump has the inlet tube, and the one end of inlet tube and the inside fixed intercommunication of extraction box, the bottom surface fixedly connected with second spliced pole of roof, the bottom surface fixedly connected with extraction liquid case of second spliced pole, the fixed intercommunication in bottom surface of extraction liquid case has extraction liquid pipe, and the fixed intercommunication in inside of extraction liquid pipe and extraction box of one end of extraction liquid pipe, the external fixed surface of extraction liquid pipe installs first solenoid valve, the surface sliding connection of extraction box has two sets of symmetrical slide bars, and the slide bar runs through the inner wall of extraction box and extends to the inside of extraction box, the one end fixedly connected with outer panel of slide bar, the other end fixedly connected with interior plate of slide bar.
Further, the fixed intercommunication in bottom surface of extraction box has the mainstream pipe, and the top fixed mounting of mainstream pipe has the fourth solenoid valve, the three first shunt pipe of outer fixed surface of mainstream pipe, every the equal fixed mounting in surface of first shunt pipe has the second solenoid valve, the fixed intercommunication in one end of first shunt pipe has the setting tank, the bottom surface of setting tank is provided with the backing plate, the last fixed surface of backing plate installs first gravity sensor, and the bottom surface and the first gravity sensor of setting tank contact.
By adopting the technical scheme, the device has the advantage that the weight of the mixed liquid of the extraction liquid and the seawater in each settling tank is the same.
Furthermore, a second gravity sensor is fixedly installed on the inner bottom wall of the settling tank, and the upper surface of the second gravity sensor is in contact with the container.
By adopting the technical scheme, the device has the advantage that the weight of the alkaline liquid added into each container is the same.
Further, the side fixedly connected with alkaline liquid case of curb plate, the fixed intercommunication in bottom surface of alkaline liquid case has alkaline liquid pipe, the external surface fixed intercommunication of alkaline liquid pipe has three second shunt tubes, the one end of second shunt tube and the inside fixed intercommunication of settling tank, the external surface fixed mounting of second shunt tube has the third solenoid valve.
Through adopting above-mentioned technical scheme, reached and to have controlled the inside alkaline liquid of second shunt tubes respectively and flowed into the inside effect of container.
Furthermore, the inner top wall of the extraction box is fixedly connected with a filter screen, and the upper part of the inner side wall of the extraction box is fixedly provided with a liquid level sensor.
By adopting the technical scheme, the problem that sundries in seawater enter the extraction box is avoided, and the problem that the liquid level in the extraction box is too high and the backflow phenomenon occurs is avoided.
Furthermore, the front of the settling tank is hinged with a door plate, the front of the settling tank is fixedly provided with a buckle, and the buckle is matched with the door plate.
Through adopting above-mentioned technical scheme, possessed the advantage that makes things convenient for the container to take out or put into.
Furthermore, the outer surface cover of slide bar is equipped with the spring, and the spring is located the inside of extraction box.
By adopting the technical scheme, the problem that the inner side plate is tightly attached to the inner wall of the extraction box and cannot be reset is avoided.
Further, the inside wall fixed mounting of settling tank has the hot plate of a set of symmetry, and hot plate and settling tank looks adaptation.
Through adopting above-mentioned technical scheme, possessed the advantage of the evaporation of the inside moisture of acceleration container.
Compared with the prior art, the extraction equipment for detecting the heavy metal in the seawater has the following beneficial effects:
1. the invention controls the water pump to work through the control panel, the water pump pumps seawater in the sea, the seawater flows into the extraction box through the water inlet pipe, the extraction liquid in the extraction liquid box flows into the extraction box, the servo motor drives the stirring rod to rotate, the stirring rod drives the stirring blade to rotate, the stirring blade stirs the mixed liquid, the mixed liquid can generate centrifugal force during stirring to extrude the inner side plate in the direction of the inner wall of the extraction box, the inner side plate enables the mixed liquid at the bottom of the extraction box to roll upwards, the seawater and the extraction liquid in the extraction box are fully stirred, the invention has the advantage of automatically stirring and oscillating to extract heavy metals in the seawater, and solves the problems that manual oscillating extraction is relatively time-consuming and labor-consuming, the efficiency is limited, and the requirements of an analysis test laboratory can not be met in many times.
2. The invention has the advantages that the weight of the mixed liquid of the extraction liquid and the seawater in each settling tank can be the same by arranging the first gravity sensor, the weight of the alkaline liquid added in each container can be the same by arranging the second gravity sensor, and the effect of respectively controlling the alkaline liquid in the second shunt pipe to flow into the container is achieved by the combined action of the second shunt pipe and the third electromagnetic valve.
3. Through setting up filter screen, level sensor, the problem emergence of debris entering into the extraction box inside of having avoided the sea water, avoided the inside liquid level of extraction box too high and take place the problem emergence of backward flow phenomenon, through the door plant, the combined action of buckle, possessed and made things convenient for the container to take out or put into the advantage, through setting up the spring, avoided the interior plate to hug closely the extraction box inner wall and the problem emergence that can't reset, through setting up the hot plate, possessed the advantage of the evaporation of the inside moisture of acceleration container.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged cross-sectional view taken at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic elevational cross-sectional view of a settling tank of the present invention;
FIG. 4 is a front perspective view of the settling tank of the present invention;
fig. 5 is a front perspective view of the present invention.
In the figure: 1-base, 2-side plate, 3-cushion block, 4-water pump, 5-water inlet pipe, 6-top plate, 7-first connecting column, 8-servo motor, 9-second connecting column, 10-extraction liquid box, 11-extraction liquid pipe, 12-first electromagnetic valve, 13-alkaline liquid box, 14-alkaline liquid pipe, 15-first shunt pipe, 16-second electromagnetic valve, 17-third electromagnetic valve, 18-second shunt pipe, 19-settling box, 20-first gravity sensor, 21-backing plate, 22-second gravity sensor, 23-container, 24-heating plate, 25-filter screen, 26-extraction box, 27-outer side plate, 28-sliding rod, 29-spring, 30-inner side plate, 31-fourth electromagnetic valve, 32-main flow pipe, 33-stirring blade, 34-liquid level sensor, 35-stirring rod, 36-door plate, 37-fastener, 38-control panel and 39-support column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides an extraction equipment for sea water heavy metal detects, which comprises a base 1, curb plate 2 of the both sides fixedly connected with a set of symmetry of 1 upper surface of base, the side fixedly connected with alkaline liquid case 13 of curb plate 2, the fixed intercommunication in bottom surface of alkaline liquid case 13 has alkaline liquid pipe 14, the fixed surface intercommunication of alkaline liquid pipe 14 has three second shunt tubes 18, the one end of second shunt tubes 18 and the inside fixed intercommunication of setting tank 19, the fixed surface of second shunt tubes 18 installs third solenoid valve 17, reached and to have controlled the inside alkaline liquid of second shunt tubes 18 respectively and flowed into the inside effect of container 23, the bottom surface fixedly connected with four groups of symmetrical support columns 39 of base 1, the top of base 1 is provided with roof 6, and the bottom surface of roof 6 is connected with the last fixed surface of curb plate 2.
The first connecting column 7 of two sets of symmetries of bottom surface fixedly connected with of roof 6, the bottom surface fixedly connected with extraction box 26 of first connecting column 7, the interior roof fixedly connected with filter screen 25 of extraction box 26, the upper portion fixed mounting of the 26 inside walls of extraction box has level sensor 34, the debris of having avoided the sea water enters into the inside problem of extraction box 26 and takes place, the problem of having avoided the inside liquid level of extraction box 26 too high and taking place the backward flow phenomenon takes place, the fixed intercommunication in bottom surface of extraction box 26 has main flow pipe 32, and the top fixed mounting of main flow pipe 32 has fourth solenoid valve 31.
Three first shunt tubes 15 of outer fixed surface of mainstream pipe 32, the equal fixed mounting in outer surface of every first shunt tube 15 has second solenoid valve 16, the fixed intercommunication of one end of first shunt tube 15 has settling tank 19, the inside wall fixed mounting of settling tank 19 has the hot plate 24 of a set of symmetry, and hot plate 24 and settling tank 19 looks adaptation, the advantage of accelerating the evaporation of the inside moisture of container 23 has been possessed, settling tank 19's front articulates there is door plant 36, the front fixed mounting of settling tank 19 that locates has buckle 37, and buckle 37 and door plant 36 looks adaptation, the advantage that makes things convenient for container 23 to take out or put into has been possessed, the interior diapire fixed mounting of settling tank 19 has second gravity sensor 22, the upper surface of second gravity sensor 22 contacts container 23, possessed and to have made the alkaline liquid weight advantage that every container 23 interpolation is the same.
The bottom surface of setting tank 19 is provided with backing plate 21, the last fixed surface of backing plate 21 installs first gravity sensor 20, and the bottom surface of setting tank 19 contacts with first gravity sensor 20, the advantage that can make the mixed liquid weight of the inside extraction liquid of every setting tank 19 and sea water the same has been possessed, the last fixed surface of extraction box 26 installs servo motor 8, servo motor 8's output fixedly connected with puddler 35, and puddler 35 runs through the upper surface of extraction box 26 and extends to the inside of extraction box 26, the outer fixed surface of puddler 35 is connected with a plurality of stirring leaves 33, the last fixed surface of base 1 is connected with cushion 3, the last fixed surface of cushion 3 installs suction pump 4, the fixed intercommunication of output of suction pump 4 has inlet tube 5, and the one end of inlet tube 5 and the inside fixed intercommunication of extraction box 26.
The bottom surface of the top plate 6 is fixedly connected with a second connecting column 9, the bottom surface of the second connecting column 9 is fixedly connected with an extraction liquid box 10, the bottom surface of the extraction liquid box 10 is fixedly communicated with an extraction liquid pipe 11, and one end of the extraction liquid pipe 11 is fixedly communicated with the interior of the extraction box 26, the outer surface of the extraction liquid pipe 11 is fixedly provided with a first electromagnetic valve 12, the front surface of the side plate 2 is fixedly hinged with a control panel 38, the outer surface of the extraction box 26 is slidably connected with two groups of symmetrical sliding rods 28, and the sliding rod 28 penetrates the inner wall of the extraction box 26 and extends to the inside of the extraction box 26, the outer surface of the sliding rod 28 is sleeved with a spring 29, and the spring 29 is positioned in the extraction box 26, so that the problem that the inner side plate 30 is attached to the inner wall of the extraction box 26 and cannot be reset is avoided, the outer side plate 27 is fixedly connected to one end of the sliding rod 28, and the inner side plate 30 is fixedly connected to the other end of the sliding rod 28.
When the device is used, the control panel 38 is electrically connected with a municipal power supply, all electrical components are electrically connected with the control panel 38, the control panel 38 controls the water suction pump 4 to work, the water suction pump 4 sucks seawater and flows into the extraction box 26 through the water inlet pipe 5, the control panel 38 controls the first electromagnetic valve 12 to be opened, extract liquid in the extraction box 10 flows into the extraction box 26 through the extraction liquid pipe 11, when liquid in the extraction box 26 reaches the height set by the liquid level sensor 34, the liquid level sensor 34 sends an electric signal to the control panel 38, the control panel 38 simultaneously controls the water suction pump 4 to stop working and the first electromagnetic valve 12 to be closed, meanwhile, the control panel 38 controls the servo motor 8 to work, the servo motor 8 drives the stirring rod 35 to rotate, the stirring rod 35 drives the stirring blade 33 to rotate, the stirring blade 33 stirs the mixed liquid, the mixed liquid generates centrifugal force during stirring and extrudes the inner side plate 30 towards the inner wall of the extraction box 26, the inner side plate 30 makes the mixed liquid at the bottom of the extraction tank 26 roll upwards to make the seawater and the extraction liquid in the extraction tank 26 fully stirred, after the stirring is completed, the servo motor 8 is closed through the control panel 38, the fourth electromagnet 31 is simultaneously opened, the mixed liquid flows into the interior of each first shunt pipe 15 through the main pipe 32, the second electromagnetic valve 16 is opened through the control panel 38, the mixed liquid flows into the interior of the container 23 through the first shunt pipe 15, when the weight of the container 23 reaches the set value of the second gravity sensor 22, the second gravity sensor 22 sends an electric signal to the control panel 38, the control panel 38 controls the second electromagnetic valve 16 to be closed, the control panel 38 controls the third battery valve 17 to be opened, the alkaline liquid in the alkaline liquid tank 13 flows into the interior of the container 23 through the alkaline liquid pipe 14, when the weight of the settling tank 19 reaches the set value of the first gravity sensor 20, the first gravity sensor 20 sends an electric signal to the control panel 38, the control panel 38 controls the third electromagnetic valve 17 to close, the mixed liquid and the alkaline liquid are subjected to chemical reaction, the door plate 36 is opened, and the container 23 is taken out.
Claims (9)
1. The utility model provides an extraction equipment for sea water heavy metal detects, includes base (1), its characterized in that: curb plate (2) of a set of symmetry of both sides fixedly connected with of base (1) upper surface, support column (39) of four group's symmetries of bottom surface fixedly connected with of base (1), the top of base (1) is provided with roof (6), and the bottom surface of roof (6) is connected with the upper surface fixed connection of curb plate (2), the first connecting column (7) of two sets of symmetries of bottom surface fixedly connected with of roof (6), the bottom surface fixedly connected with extraction box (26) of first connecting column (7), and the front fixed hinge of curb plate (2) has control panel (38).
2. The extraction equipment for detecting the heavy metal in the seawater according to claim 1, which is characterized in that: the upper surface fixed connection of extraction box (26) installs servo motor (8), the output fixedly connected with puddler (35) of servo motor (8), and puddler (35) run through the upper surface of extraction box (26) and extend to the inside of extraction box (26), the fixed surface of puddler (35) is connected with a plurality of stirring leaves (33), the upper surface fixed connection of base (1) has cushion (3), the upper surface fixed connection of cushion (3) installs suction pump (4), the fixed intercommunication of output of suction pump (4) has inlet tube (5), and the one end of inlet tube (5) and the inside fixed intercommunication of extraction box (26), the bottom surface fixedly connected with second spliced pole (9) of roof (6), the bottom surface fixedly connected with extraction liquid case (10) of second spliced pole (9), the fixed intercommunication of bottom surface of extraction liquid case (10) has extraction liquid pipe (11), and the one end of extraction liquid pipe (11) and the inside fixed intercommunication of extraction box (26), the fixed surface of extraction liquid pipe (11) installs first solenoid valve (12), the surface sliding connection of extraction box (26) has two sets of symmetry slide bars (28), and slide bar (28) run through the inner wall of extraction box (26) and extend to the inside of extraction box (26), the one end fixedly connected with outer panel (27) of slide bar (28), the other end fixedly connected with inside plate (30) of slide bar (28).
3. The extraction equipment for detecting the heavy metal in the seawater according to claim 2, which is characterized in that: the fixed intercommunication in bottom surface of extraction box (26) has mainstream pipe (32), and the top fixed mounting of mainstream pipe (32) has fourth solenoid valve (31), the three first shunt tubes (15) of outer fixed connection of mainstream pipe (32), every the equal fixed mounting in surface of first shunt tubes (15) has second solenoid valve (16), the fixed intercommunication in one end of first shunt tubes (15) has setting tank (19), the bottom surface of setting tank (19) is provided with backing plate (21), the last fixed surface of backing plate (21) installs first gravity sensor (20), and the bottom surface of setting tank (19) contacts with first gravity sensor (20).
4. The extraction equipment for detecting the heavy metal in the seawater according to claim 3, wherein the extraction equipment comprises: and a second gravity sensor (22) is fixedly installed on the inner bottom wall of the settling tank (19), and the upper surface of the second gravity sensor (22) is in contact with a container (23).
5. The extraction equipment for detecting the heavy metal in the seawater according to claim 1, which is characterized in that: the side fixedly connected with alkaline liquid case (13) of curb plate (2), the fixed intercommunication in bottom surface of alkaline liquid case (13) has alkaline liquid pipe (14), the external surface fixed intercommunication of alkaline liquid pipe (14) has three second shunt tubes (18), the one end of second shunt tubes (18) and the inside fixed intercommunication of settling tank (19), the external surface fixed mounting of second shunt tubes (18) has third solenoid valve (17).
6. The extraction equipment for detecting the heavy metal in the seawater according to claim 1, which is characterized in that: the inner top wall of the extraction box (26) is fixedly connected with a filter screen (25), and the upper part of the inner side wall of the extraction box (26) is fixedly provided with a liquid level sensor (34).
7. The extraction equipment for detecting the heavy metal in the seawater according to claim 3, wherein the extraction equipment comprises: the front of the settling tank (19) is hinged with a door plate (36), the front of the settling tank (19) is fixedly provided with a buckle (37), and the buckle (37) is matched with the door plate (36).
8. The extraction equipment for detecting the heavy metal in the seawater according to claim 2, which is characterized in that: the outer surface of the sliding rod (28) is sleeved with a spring (29), and the spring (29) is positioned inside the extraction box (26).
9. The extraction equipment for detecting the heavy metal in the seawater according to claim 3, wherein the extraction equipment comprises: the inside wall fixed mounting of settling tank (19) has a set of symmetrical hot plate (24), and hot plate (24) and settling tank (19) looks adaptation.
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| CN202010013139.5A CN111170396A (en) | 2020-01-07 | 2020-01-07 | Extraction equipment for detecting heavy metal in seawater |
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