CN219517912U - Device for extracting trace sulfate in water - Google Patents
Device for extracting trace sulfate in water Download PDFInfo
- Publication number
- CN219517912U CN219517912U CN202320600656.1U CN202320600656U CN219517912U CN 219517912 U CN219517912 U CN 219517912U CN 202320600656 U CN202320600656 U CN 202320600656U CN 219517912 U CN219517912 U CN 219517912U
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- filter
- water
- waste liquid
- sulfate
- shell
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- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 239000002699 waste material Substances 0.000 claims abstract description 41
- 239000012528 membrane Substances 0.000 claims abstract description 27
- 238000000605 extraction Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract description 20
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052717 sulfur Inorganic materials 0.000 abstract description 11
- 239000011593 sulfur Substances 0.000 abstract description 11
- 238000004458 analytical method Methods 0.000 abstract description 7
- 239000002244 precipitate Substances 0.000 abstract description 7
- 239000008239 natural water Substances 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 8
- 239000000706 filtrate Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 241000463219 Epitheca Species 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002925 chemical effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005103 elemental analyser isotope ratio mass spectroscopy Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a device for extracting trace sulfate in water. The device comprises a filtering component, a waste liquid collecting component and a vacuum component; the filter assembly comprises at least two main pipelines, a plurality of filter funnels and a plurality of filter core pieces, wherein the main pipelines are vertically communicated with a plurality of branch pipelines, and each branch pipeline is provided with a switch valve; the filter element piece comprises a shell, a core body and a filter membrane, wherein the bottom of the shell is inserted into the branch pipeline, the top of the shell is fixedly connected with the filter funnel, and the filter membrane is arranged on the core body; one end of the main pipeline is closed, the other end is communicated with the waste liquid collecting assembly, and the vacuum assembly is communicated with the waste liquid collecting assembly. According to the utility model, the filter funnels are arranged at the same time, and the filter element is provided with the filter membrane, so that sulfate in water with extremely low sulfate content can be extracted, the sample size of a water sample is reduced, the extraction time of trace sulfate in water is shortened, the extracted barium sulfate precipitate has high purity, and the analysis of sulfur isotopes with extremely low sulfate content in water can be realized.
Description
Technical Field
The utility model relates to the technical field of sulfate extraction, in particular to a device for extracting trace sulfate in water.
Background
Sulfate in natural water (atmospheric water, surface water, groundwater, etc.) is affected by complex physical, chemical and biological effects, and sulfur isotope fractionation can be generated in the processes of formation, migration, transformation and enrichment among various layers of the earth system, so that sulfate in various natural water has different sulfur isotope compositions (delta 34 S) features. The sulfur isotope composition of sulfate in natural water is measured, so that the water circulation mechanism, the source and conversion of pollutants in water, the source and migration process of atmospheric sulfur dioxide and the like can be deeply studied. However, the sulfate concentration in the water in nature has a large variation range, the sulfate content of partial water samples (such as partial atmospheric water, sandstone groundwater and the like) is extremely low (0.4-0.8 mg/L), and the sufficient sample quantity for sulfur isotope composition analysis is difficult to collect, so that the sulfur isotope application research of the water samples is limited.
At present, a sulfate extraction device special for trace sulfate (0.4-0.8 mg/L) in water is not available.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a device for extracting trace sulfate in water.
The utility model relates to a device for extracting trace sulfate in water, which comprises a filtering component, a waste liquid collecting component and a vacuum component; the filter assembly comprises at least two main pipelines, a plurality of filter funnels and a plurality of filter core pieces, wherein the main pipelines are vertically communicated with a plurality of branch pipelines, and each branch pipeline is provided with a switch valve for opening or closing the branch pipeline; the filter element comprises a shell, a core body and a filter membrane, wherein the bottoms of the shell are inserted into the branch pipelines in a one-to-one correspondence manner, the tops of the shell are fixedly connected with the filter funnels in a one-to-one correspondence manner, and the filter membrane is arranged on the core body; one end of the main pipeline is closed, the other end of the main pipeline is communicated with the waste liquid collecting assembly, and the vacuum assembly is communicated with the waste liquid collecting assembly to provide negative pressure.
Further, the casing includes epitheca and inferior valve, the top of epitheca with filter funnel is connected fixedly, the bottom of inferior valve is inserted and is established in the branch pipeline, the core sets up in the inferior valve, the filter membrane presss from both sides to be established between epitheca and the inferior valve, epitheca and inferior valve pass through the connecting piece and connect fixedly.
Further, the connector includes a funnel clip.
Further, the bottom of the shell is wrapped with a layer of rubber.
Further, the core body is a quartz sand filter core.
Further, the filter membrane is a glass fiber filter membrane.
Further, the waste liquid collecting assembly comprises a waste liquid barrel and a conversion connecting piece, wherein the conversion connecting piece is arranged at the top of the waste liquid barrel and is provided with a first connecting hole, a second connecting hole and a third connecting hole, the first connecting hole is communicated with the other end of the main pipeline, the second connecting hole is communicated with the vacuum assembly, the third connecting hole is inserted with a discharge air pipe, and a discharge air valve is arranged on the discharge air pipe.
Further, a waste liquid discharge switch valve is arranged at the bottom of the waste liquid barrel.
Further, the vacuum assembly includes an oilless mechanical pump connected to the second connection hole through a hose.
According to the device for extracting the trace sulfate in the water, provided by the utility model, the filter funnels are arranged at the same time, and the filter element is provided with the filter membrane, so that the trace sulfate in the water can be extracted, the sample size of the water sample is reduced, the extraction time of the trace sulfate in the water is shortened, and the extracted barium sulfate is high in precipitation purity; the extraction device can be used for natural water samples with higher sulfate content (more than 2 mg/L) or lower sulfate content (0.8-2 mg/L), and the concentration of sulfate ions does not need to be measured before sulfate extraction; the method can also extract enough sulfate sample amount for sulfur isotope analysis from natural water samples with extremely low sulfate content, namely trace (0.4-0.8 mg/L); the sulfur isotope analysis precision is improved, and meanwhile, the experimental operability is also improved.
Drawings
FIG. 1 is a schematic diagram of a trace sulfate extraction device in water according to the present utility model;
fig. 2 is a schematic structural view of a filter element of the present utility model.
1. A filter assembly; 11. a main pipeline; 12. a filter funnel; 13. a filter element; 131. a housing; 1311. an upper case; 1312. a lower case; 132. a core; 133. a filter membrane; 14. a branch pipeline; 15. a switch valve; 2. a waste liquid collection assembly; 21. a waste liquid barrel; 22. a conversion connector; 221. a first connection hole; 222. a second connection hole; 223. a third connection hole; 23. an exhaust air pipe; 231. an exhaust air valve; 3. a vacuum assembly; 31. an oilless mechanical pump; 32. a hose; 4. a connecting piece; 41. and (5) a funnel clip.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1 and 2, the device for extracting trace sulfate in water comprises a filtering component 1, a waste liquid collecting component 2 and a vacuum component 3; the filter assembly 1 comprises at least two main pipelines 11, a plurality of filter funnels 12 and a plurality of filter element pieces 13, wherein a plurality of branch pipelines 14 are vertically communicated with the main pipelines 11, and each branch pipeline 14 is provided with a switch valve 15 for opening or closing the branch pipeline; the filter element 13 comprises a shell 131, a core 132 and a filter membrane 133, wherein the bottoms of the shell 131 are inserted into the branch pipelines 14 in a one-to-one correspondence manner, the tops of the shell 131 are fixedly connected with the filter funnels 12 in a one-to-one correspondence manner, and the filter membrane 133 is arranged on the core 132; the main pipeline 11 has one end closed and the other end communicated with the waste liquid collecting component 2, and the vacuum component 3 is communicated with the waste liquid collecting component 2 to provide negative pressure.
According to the device for extracting the trace sulfate in the water, disclosed by the utility model, the filter funnels 12 are arranged at the same time, and the filter membrane 133 is arranged on the filter element, so that sulfate in the water with extremely low sulfate content (0.4-0.8 mg/L) can be extracted, the sample amount of a water sample is reduced, the extraction time of the trace sulfate in the water is shortened, and the extracted barium sulfate is high in precipitation purity; the extraction device can be used for natural water samples with higher sulfate content (more than 2 mg/L) or lower sulfate content (0.8-2 mg/L), and the concentration of sulfate ions does not need to be measured before sulfate extraction; the method can also extract enough sulfate sample amount for sulfur isotope analysis for natural water samples with extremely low sulfate content (0.4-0.8 mg/L); the sulfur isotope analysis precision is improved, and meanwhile, the experimental operability is also improved.
As shown in fig. 2, in one embodiment, the housing 131 may include an upper housing 1311 and a lower housing 1312, wherein the top of the upper housing 1311 is fixedly connected with the filter funnel 12, the bottom of the lower housing 1312 is inserted into the branch pipe 14, the core 132 is disposed in the lower housing 1312, the filter membrane 133 is sandwiched between the upper housing 1311 and the lower housing 1312, and the upper housing 1311 and the lower housing 1312 are fixedly connected through the connection member 4. The connecting member 4 may be a funnel clip 41, and the upper case 1311 and the lower case 1312 are fixedly connected by the funnel clip 41.
In order to facilitate the tight insertion of the bottom of the housing 131 in the branch pipe 14, the bottom of the housing 131 is wrapped with a layer of rubber.
In one embodiment, the core 132 may be a quartz sand filter cartridge.
In one embodiment, the filter 133 may be a fiberglass filter 133.
The structure of the waste liquid collecting assembly 2 is various, in this embodiment, the waste liquid collecting assembly 2 may include a waste liquid barrel 21, a conversion connector 22, the conversion connector 22 is disposed at the top of the waste liquid barrel 21, the conversion connector 22 is provided with a first connecting hole 221, a second connecting hole 222 and a third connecting hole 223, the first connecting hole 221 is communicated with the other end of the main pipeline 11, the second connecting hole 222 is communicated with the vacuum assembly 3, the third connecting hole 223 is inserted with a discharge air pipe 23, and a discharge air valve 231 is disposed on the discharge air pipe 23.
Wherein the conversion connector 22 may be a soft rubber column, which is plugged on top of the waste liquid tank 21.
The bottom of the waste liquid barrel 21 can be further provided with a waste liquid discharge switch valve 15, so that waste liquid is conveniently discharged, and the waste liquid barrel 21 can be made of polytetrafluoroethylene and has a capacity of 50 liters.
The vacuum assembly 3 may include an oilless mechanical pump 31, the oilless mechanical pump 31 being connected to the second connection hole 222 through a hose 32 to provide negative pressure for the whole extraction device, to accelerate filtration of filtrate, the oilless mechanical pump 31 having a pressure gauge.
In one embodiment, the filter funnel 12 may be made of quartz, and the filter funnel 12 may be fixed to the top of the filter element 13 by a molten glass with a volume of 200 ml. The housing 131 of the filter element 13 may be made of quartz, and the bottom of the upper housing 1311 is a grinding opening, the outer diameter of the grinding opening is 30mm, and the inner diameter is 20mm (the inner aperture can be reduced as much as possible on the premise of ensuring the weight of the supporting funnel and the water filling. The upper grinding mouth of the lower shell 1312 and the bottom grinding mouth of the upper shell 1311 are fixed by a funnel clamp 41. The core 132 is placed inside the lower shell 1312. The core 132 can be a quartz cylinder (diameter 19mm, height 3 mm), when barium sulfate precipitation is filtered, a glass fiber filter membrane 133 with a phi 25 aperture of 0.22 mu m is placed on the surface of the filter element, the designed area of the core 132 can be as small as possible, and the surface of the filter membrane 133 in unit area is ensured to be enriched with more barium sulfate precipitation as much as possible.
Wherein, main pipeline 11 can be stainless steel, and both ends design has the fixing base, designs on the fixing base has the handle, and main pipeline 11 one end is sealed, and the other end designs has screwed joint, is connected with waste liquid collection subassembly 2 through hose 32. The branch pipe 14 can also be made of stainless steel, so that enough strength is ensured, and the switch valve 15 arranged on the branch pipe 14 and used for controlling the branch filtering switch can be a stainless steel ball valve.
When the sulfate extraction analysis is carried out by using the device for extracting trace sulfate in water, the method specifically comprises the following steps:
(1) And (3) water sample filtration: filtering a plurality of natural water samples (about 2 liters of each water sample) through filter paper with the pore diameter of 0.22 mu m to remove solid particles in water;
(2) Resin exchange: adsorbing the water sample by anion resin, desorbing to obtain sulfate ion concentrated solution (about 250ml of each water sample), and purifying and enriching the water sample;
(3) Water sample acidification: adding 6mol/L hydrochloric acid into a water sample, and measuring the pH value to be 2 by a pH meter;
(4) A precipitate formed: heating a water sample by using a 200-DEG electric hot plate, sequentially adding 15ml of barium chloride with the mass concentration of 15%, rapidly stirring by using a glass rod, forming barium sulfate precipitate, and standing for one night;
the following steps (5) to (10) are completed by the trace sulfate extraction device of the utility model;
(5) And (3) precipitation and filtration: closing all valves of the microsulfate extraction device, respectively taking down 12 funnel clamps 41 and filter funnels 12 in sequence, putting a glass fiber microfiltration membrane 133 burnt at high temperature on the surface of each core 132, respectively assembling 12 filter funnels 12 and filter element pieces 13, and clamping the funnel clamps 41; sequentially pouring 12 solutions containing barium sulfate precipitate into filter funnels 12 (in the embodiment, the number of the filter funnels is 12), opening the on-off valves 15 of all the pipelines 14, starting the oilless mechanical pump 31, filtering filtrate through a filter membrane 133, then entering the waste liquid barrel 21, filtering filtrate in the filter funnels 12, and closing the on-off valves 15 of all the pipelines 14; repeating the steps until all 12 barium sulfate precipitate samples are filtered, and closing the oil-free mechanical pump 31;
(6) And (3) precipitation and cleaning: sequentially adding 30ml deionized water into each of 12 filter funnels 12, opening all the switch valves 15, starting the oilless mechanical pump 31, filtering the filtrate through a filter membrane 133, then entering the waste liquid barrel 21, filtering the filtrate in the filter funnels 12, and closing the switch valves 15 of all the branch pipelines 14; repeating this step 3 times to complete the precipitation cleaning, and turning off the mechanical pump 31;
(7) The filter membrane 133 was removed: opening the exhaust air valve 231 of the exhaust air pipe 23, and returning the whole device air pressure to the normal atmospheric pressure; sequentially taking down the 12 funnel clamps 41 and the filter funnels 12 respectively, sequentially taking out the filter membranes 133 containing the barium sulfate precipitate by using tweezers, and respectively putting into clean glass culture dishes;
(8) And (3) discharging waste liquid: opening a waste liquid discharge switch valve 15 at the bottom of the waste liquid barrel 21 to discharge the waste liquid in the waste liquid barrel 21 cleanly;
(9) Cleaning the filter funnel 12 and the filter element 13: taking down the filter funnel 12 and the filter element piece 13, and cleaning the filter funnel and the filter element piece by using tap water and deionized water respectively; the filter funnel 12 and the filter element 13 are put back into the trace sulfate extraction device;
(10) Repeating the steps (5) - (9) to finish the extraction of the trace sulfate in all the water;
(11) And (3) precipitation and drying: placing the culture dish with the filter membrane 133 in an oven, drying at 70 ℃ for 24 hours, and placing in a dryer for standby;
(12) Analyzing the sample: the filter 133 containing the barium sulfate precipitate was crushed, weighed by a balance, packed tightly with tin cup, and the sulfur isotope was measured by an elemental analyzer-gas isotope mass spectrometer on-line (EA-IRMS).
The above is not relevant and is applicable to the prior art.
While certain specific embodiments of the present utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the foregoing examples are provided for the purpose of illustration only and are not intended to limit the scope of the utility model, and that various modifications or additions and substitutions to the described specific embodiments may be made by those skilled in the art without departing from the scope of the utility model or exceeding the scope of the utility model as defined in the accompanying claims. It should be understood by those skilled in the art that any modification, equivalent substitution, improvement, etc. made to the above embodiments according to the technical substance of the present utility model should be included in the scope of protection of the present utility model.
Claims (8)
1. An extraction device for trace sulfate in water, which is characterized in that: comprises a filtering component (1), a waste liquid collecting component (2) and a vacuum component (3); the filter assembly (1) comprises at least two main pipelines (11), a plurality of filter funnels (12) and a plurality of filter element pieces (13), wherein a plurality of branch pipelines (14) are vertically communicated with each other on the main pipelines (11), and a switch valve (15) for opening or closing the branch pipelines (14) is arranged on each branch pipeline; the filter element (13) comprises a shell (131), a core body (132) and a filter membrane (133), wherein the bottoms of the shell (131) are inserted into the branch pipelines (14) in a one-to-one correspondence manner, the tops of the shell (131) are fixedly connected with the filter funnels (12) in a one-to-one correspondence manner, and the filter membrane (133) is arranged on the core body (132); one end of the main pipeline (11) is closed, the other end of the main pipeline is communicated with the waste liquid collecting assembly (2), and the vacuum assembly (3) is communicated with the waste liquid collecting assembly (2) to provide negative pressure.
2. An apparatus for extracting trace sulfate from water as claimed in claim 1, wherein: the shell (131) comprises an upper shell (1311) and a lower shell (1312), wherein the top of the upper shell (1311) is fixedly connected with the filter funnel (12), the bottom of the lower shell (1312) is inserted into the branch pipeline (14), the core (132) is arranged in the lower shell (1312), the filter membrane (133) is clamped between the upper shell (1311) and the lower shell (1312), and the upper shell (1311) and the lower shell (1312) are fixedly connected through a connecting piece (4).
3. An apparatus for extracting trace sulfate from water as claimed in claim 2, wherein: the connector (4) comprises a funnel clip (41).
4. An apparatus for extracting trace sulfate from water as claimed in claim 1, wherein: the bottom of the shell (131) is wrapped with a layer of rubber.
5. An apparatus for extracting trace sulfate from water as claimed in claim 1, wherein: the core body (132) is a quartz sand filter core.
6. An apparatus for extracting trace sulfate from water as claimed in claim 1, wherein: the filter membrane (133) is a glass fiber filter membrane.
7. An apparatus for extracting trace sulfate from water as claimed in claim 1, wherein: the waste liquid collecting assembly (2) comprises a waste liquid barrel (21) and a conversion connecting piece (22), the conversion connecting piece (22) is arranged at the top of the waste liquid barrel (21), the conversion connecting piece (22) is provided with a first connecting hole (221), a second connecting hole (222) and a third connecting hole (223), the first connecting hole (221) is communicated with the other end of the main pipeline (11), the second connecting hole (222) is communicated with the vacuum assembly (3), the third connecting hole (223) is inserted with a discharge air pipe (23), and the discharge air pipe (23) is provided with a discharge air valve (231); the bottom of the waste liquid barrel (21) is provided with a waste liquid discharge switch valve (15).
8. An apparatus for extracting trace sulfate from water as claimed in claim 1, wherein: the vacuum assembly (3) comprises an oilless mechanical pump (31), and the oilless mechanical pump (31) is connected with the second connecting hole (222) through a hose (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320600656.1U CN219517912U (en) | 2023-03-22 | 2023-03-22 | Device for extracting trace sulfate in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320600656.1U CN219517912U (en) | 2023-03-22 | 2023-03-22 | Device for extracting trace sulfate in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219517912U true CN219517912U (en) | 2023-08-15 |
Family
ID=87645027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320600656.1U Active CN219517912U (en) | 2023-03-22 | 2023-03-22 | Device for extracting trace sulfate in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219517912U (en) |
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2023
- 2023-03-22 CN CN202320600656.1U patent/CN219517912U/en active Active
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