CN219842227U - Portable detachable combined soil heavy metal pretreatment device - Google Patents
Portable detachable combined soil heavy metal pretreatment device Download PDFInfo
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- CN219842227U CN219842227U CN202320792437.8U CN202320792437U CN219842227U CN 219842227 U CN219842227 U CN 219842227U CN 202320792437 U CN202320792437 U CN 202320792437U CN 219842227 U CN219842227 U CN 219842227U
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- Prior art keywords
- heavy metal
- placing
- shell
- drying box
- metal pretreatment
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- 239000002689 soil Substances 0.000 title claims abstract description 55
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000000227 grinding Methods 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 230000029087 digestion Effects 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims description 24
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- 238000005485 electric heating Methods 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000006112 glass ceramic composition Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002241 glass-ceramic Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 231100000171 higher toxicity Toxicity 0.000 description 1
- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a portable detachable combined soil heavy metal pretreatment device, which comprises a mounting shell, a grinding device detachably arranged at the top of the mounting shell, a liquid adding device arranged at the top of the mounting shell, and a digestion device capable of being respectively communicated with the grinding device and the bottom of the liquid adding device; the installation shell comprises a shell, and a heating unit is arranged in the shell; the detachable arrangement of the components can effectively improve the portability of the device.
Description
Technical Field
The utility model relates to the technical field of soil heavy metal treatment, in particular to a portable detachable combined soil heavy metal pretreatment device.
Background
With the increasing importance of the national environmental pollution problem, the environmental quality problem of the soil is more enhanced in supervision and treatment. Heavy metal pollution is generally lead, mercury, tin, nickel and the like, and toxic metals enter soil through various channels to cause different degrees of pollution to the soil. When the soil contains more heavy metals, the decomposing capability of microorganisms in the soil is greatly reduced, pollutants cannot be effectively decomposed, and toxic substances contained in the soil are gradually accumulated without repairing the pollutants. For heavy metal detection of soil, a large amount of manpower and material resources are required in the detection process, the detection process is quite complex, and the actual situation analysis in recent years shows that the channels of the soil polluted by the heavy metal are gradually increased, and pollution sources are diversified, so that the research on the heavy metal pollution of the soil is also carried out in real time.
The inorganic pollutants in the soil are more prominent in heavy metal, and the heavy metal is easy to accumulate and convert into methyl compounds with higher toxicity mainly because the heavy metal cannot be decomposed by soil microorganisms, even the heavy metals are accumulated in the human body through a food chain, so that the human health is seriously endangered, and the treatment of the heavy metal of the soil pollutants cannot be neglected; because the soil is solid particles, the detection of substance components and the like in the soil is difficult, the soil needs to be pretreated before the detection of heavy metals in the soil, and the detection of the heavy metals in the soil can be effectively realized by selecting a proper pretreatment method; in soil heavy metal detection, the pretreatment process is a very critical step. During the whole detection analysis, about 60% of the analysis errors are derived from the sample pretreatment, not the instrument itself.
Aiming at the problems that most of the soil heavy metal pretreatment devices in the prior art are heavy and inconvenient to carry, and meanwhile, a plurality of uncontrollable devices exist through a manual pretreatment method, based on the uncontrollable devices, a portable and detachable combined soil heavy metal pretreatment device is provided.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a portable and detachable combined soil heavy metal pretreatment device.
The technical scheme of the utility model is as follows: the portable detachable combined soil heavy metal pretreatment device comprises a mounting shell, a grinding device detachably arranged at the top of the mounting shell, a liquid adding device arranged at the top of the mounting shell, and a digestion device which can be respectively communicated with the grinding device and the bottom of the liquid adding device;
the installation shell comprises a shell, and a heating unit is arranged in the shell; wherein, one side of the shell is provided with a visual window which can observe the interior of the heating unit;
the grinding device comprises a drying box clamped on the shell, a grinding roller rotatably arranged in the drying box, a blanking pipe arranged at a discharge hole at the bottom of the drying box, a first metering device and a first electromagnetic valve arranged in the blanking pipe, and a first motor for providing rotary power for the grinding roller;
the liquid adding device comprises a driving component and an adjusting component connected with the driving component; the adjusting component comprises a mounting base, a placing piece arranged on the mounting base, 4 liquid storage pipes which are detachably arranged in the placing piece, a liquid discharging pipe which is arranged in the mounting shell and can be communicated with the bottoms of the liquid storage pipes, and a second metering device which is arranged in the liquid discharging pipe; nitric acid, hydrochloric acid, hydrofluoric acid and hypochlorous acid are respectively arranged in the liquid storage pipe, and a second electromagnetic valve is arranged at the bottom of the liquid storage pipe;
the digestion device comprises an electric heating plate arranged in the heating unit, a circular guide rail arranged on the electric heating plate, at least one crucible arranged on the circular guide rail in a sliding manner, and a second motor for providing rotary power for the circular guide rail.
Further, a first gear is arranged on the outer side of the circular guide rail, the driving assembly comprises a rotating shaft, one end of the rotating shaft is arranged at the center of the mounting base and penetrates through the heating unit, and a second gear is arranged at the other end of the rotating shaft; the first gear is in meshed transmission connection with the second gear;
description: through set up first gear in the circular guide rail outside to and set up at the axis of rotation other end and with the coordinated control of first gear engagement's second gear can reach same motor, reached the effect of high-efficient processing when reducing motor use quantity.
Further, the placing pieces respectively comprise a placing body and a plurality of clamping pieces respectively arranged at two sides of the placing body; the placing body is provided with a placing groove for placing the liquid storage tube; the clamping piece comprises two threaded rods which are respectively arranged at two sides of the placing body, a clamping plate which is arranged at one end of the threaded rod and positioned in the placing groove, and a knob which is arranged at the other end of the threaded rod;
description: the liquid storage tubes with different diameters can be effectively clamped through the clamping plates, the threaded rods and the rotary knob, so that the adaptation degree of the device is improved.
Further, the electric heating plate is made of glass ceramic, and the circular guide rail is made of copper;
description: the glass ceramic material can effectively avoid corrosion caused by mistaken dripping of acid solution on the surface of the electric heating plate, and the circular guide rail adopts copper material to facilitate heat conduction, so that digestion efficiency of the device is effectively improved.
Further, the top of the drying box is also detachably provided with a sieving component; the screening assembly comprises a screen mesh clamped at the top of the drying box and positioned above the grinding roller, and a poking piece arranged on the side wall of the top of the drying box in a sliding manner; wherein the aperture of the screen is 10-20 mm;
description: can effectively filter rubble, waste residue etc. in soil through screen cloth and stirring piece cooperation, avoid stone to lead to the fact the damage to the grinding roller in the grinding process, also effectively ensured simultaneously and fallen into the inside soil composition's of crucible validity to improve the digestion efficiency of device, further promote pretreatment effect.
The beneficial effects of the utility model are as follows:
(1) According to the utility model, the measuring devices are respectively arranged at the bottoms of the grinding device and the liquid adding device, so that the digestion proportion between soil and each component can be accurately controlled, the waste of each part of solution can be reduced while the soil is effectively digested, the purpose of saving the cost of the device is achieved, and the portability of the device can be effectively improved through the detachable arrangement.
(2) According to the utility model, the screening assembly is arranged at the top of the drying box, so that broken stones and massive hard sundries in soil can be effectively filtered, the grinding roller in the grinding device is effectively prevented from being damaged by sharp objects in the use process, the effect of prolonging the service life of the grinding roller is achieved, and the use cost of the device is reduced.
Drawings
FIG. 1 is a schematic view showing the external structure of embodiment 1 of the present utility model;
FIG. 2 is a schematic view showing the internal structure of embodiment 1 of the present utility model;
FIG. 3 is a schematic view showing the structure of an adjusting unit according to embodiment 1 of the present utility model;
fig. 4 is a schematic view showing the structure of a sieving assembly according to embodiment 2 of the present utility model.
Wherein, 1-installation shell, 11-heating unit, 2-grinder, 21-stoving case, 22-grinding roller, 23-unloading pipe, 24-screening subassembly, 241-screen cloth, 242-stirring piece, 3-liquid feeding device, 31-drive assembly, 311-axis of rotation, 312-second gear, 32-adjusting component, 321-mounting base, 322-setting piece, 3221-standing groove, 3222-grip block, 3223-threaded rod, 3224-knob, 323-stock solution pipe, 324-unloading pipe, 4-digestion device, 41-electric plate, 42-circular guide rail, 421-first gear.
Detailed Description
The utility model will be described in further detail with reference to the following embodiments to better embody the advantages of the utility model.
Example 1
As shown in fig. 1, a portable and detachable combined soil heavy metal pretreatment device comprises a mounting shell 1, a grinding device 2 detachably arranged at the top of the mounting shell 1, a liquid adding device 3 arranged at the top of the mounting shell 1, and a digestion device 4 which can be respectively communicated with the grinding device 2 and the bottom of the liquid adding device 3;
as shown in fig. 2, the installation housing 1 includes a housing in which a heating unit 11 is provided; in order to facilitate storage of the split components, a partition plate can be arranged on the right side of the heating unit 11, the inside of the shell is split into a heating chamber and a placing chamber through the partition plate, and an opening and closing door is arranged on one side of the placing chamber;
as shown in fig. 2, the grinding device 2 comprises a drying box 21 clamped on a shell, a grinding roller 22 rotatably arranged in the drying box 21, a blanking pipe 23 arranged at a discharge hole at the bottom of the drying box 21, a first metering device and a first electromagnetic valve arranged in the blanking pipe 23, and a first motor for providing rotary power for the grinding roller 22; wherein, the bottom of the drying box 21 is provided with an arc structure attached to the outer side wall of the grinding roller 22, and the bottom of the arc structure is communicated with the blanking pipe 23;
the liquid adding device 3 comprises a driving component 31 and an adjusting component 32 connected with the driving component 31;
as shown in fig. 3, the adjusting assembly 32 includes a mounting base 321, a placement piece 322,4 provided on the mounting base 321, liquid storage pipes 323 detachably provided inside the placement piece 322, a lower liquid pipe 324 provided inside the mounting case 1 and capable of communicating with bottoms of the 4 liquid storage pipes 323, and a second metering device provided inside the lower liquid pipe 324; the liquid storage pipe 323 is respectively provided with nitric acid, hydrochloric acid, hydrofluoric acid and hypochlorous acid, and the bottom of the liquid storage pipe 323 is provided with a second electromagnetic valve;
the placing pieces 322 respectively comprise a placing body and 4 clamping pieces respectively arranged at two sides of the placing body; the placing body is provided with a placing groove 3221 for placing the liquid storage tube 323; the clamping member includes two threaded rods 3223 respectively disposed at both sides of the placement body, a clamping plate 3222 disposed at one end of the threaded rods 3223 and located inside the placement groove 3221, and a knob 3224 disposed at the other end of the threaded rods 3223; in order to facilitate the operation of staff, two adjacent threaded rods 3223 are arranged in a staggered manner;
as shown in fig. 2, the digestion means 4 includes an electric heating plate 41 provided inside the heating unit 11, circular rails 42,1 provided on the electric heating plate 41, crucibles 43 slidably provided on the circular rails 42, and a second motor for supplying rotational power to the circular rails 42; the electric heating plate 41 is made of glass ceramic, and the circular guide rail 42 is made of copper;
the circular guide rail 42 is provided with a first gear 421 at an outer side thereof, and the driving assembly 31 includes a rotation shaft 311 having one end disposed at a center of the mounting base 321 and penetrating the heating unit 11, and a second gear 312 disposed at the other end of the rotation shaft 311; the first gear 421 is in meshed driving connection with the second gear 312.
It should be noted that: the first metering device and the second metering device in the embodiment are all commercial weighing sensors, the grinding roller 22 is a commercial grinding roller, the motor is a commercial motor, and the first electromagnetic valve and the second electromagnetic valve are all commercial butterfly valves; the grinding device 2, the liquid adding device 3 and the digestion device 4 are respectively communicated with a power supply.
The working principle of the embodiment is as follows: turning the knob 3224 causes the threaded rod 3223 to rotate along both ends of the placement member 322, and adjusts the clamping plate 3222 provided at the other end of the threaded rod 3223 to effectively clamp the liquid storage tubes 323 with different diameters; the rotation knobs 3224 are meshed for transmission, and clamping of all liquid storage tubes 323 can be completed by adjusting one rotation knob 3224; pouring sample soil between grinding rolls 22 in a drying box 21, turning on a first motor, rotating the grinding rolls 22 and grinding large-particle soil in the sample soil for 10min, sequentially passing the treated sample soil through a blanking pipe 23 and a first metering device, weighing the sample soil by the first metering device, and controlling the circulation state of the blanking pipe 23 through a first electromagnetic valve; the sample soil falls into the crucible 43, a second motor is started, the circular guide rail 42 rotates to drive the crucible 43 to rotate, and meanwhile, a second gear 312 meshed with a first gear 421 at the outer side of the circular guide rail 42 is driven to rotate, so that a rotating shaft 311 is driven to rotate to adjust the position of a liquid storage pipe 323, the sample soil is sequentially introduced into the crucible 43 through a liquid discharging pipe 324, the weight of a reagent is weighed by a second metering device, and then the circulation state of the liquid discharging pipe 324 is controlled through a second electromagnetic valve; wherein, the liquid feeding step is: hydrochloric acid, nitric acid, hydrofluoric acid and hypochlorous acid, and adding liquid for the first time: the ratio of the sample soil to the hydrochloric acid is 3-5: 100g/mL, preferably 5:100g/mL, the ratio of sample soil to nitric acid is 3-5: 50g/mL, preferably 5:100g/mL; the ratio of the sample soil to the hydrofluoric acid is 3-5: 50g/mL, preferably 3:50g/mL; the ratio of the sample soil to perchloric acid is 3-5: 30g/mL, preferably 3:100g/mL; stopping adding acid after all the materials are added in sequence, and then rotating the crucible 43 to mix for 30min by itself; and (3) adding acid secondarily: the ratio of the sample soil to the nitric acid is 3-5: 30g/mL, preferably 3:30g/mL; the ratio of the sample soil to the hydrofluoric acid is 3-5: 30g/mL, preferably 3:30g/mL; the ratio of the sample soil to perchloric acid is 3-5: 10g/mL, preferably 3:10g/mL; rotating and mixing for 15min under warm condition; taking out and cooling, and fixing the volume.
Example 2
Unlike embodiment 1, as shown in fig. 4, the top of the drying box 21 is also detachably provided with a sieving assembly 24; the sieving component 24 comprises a screen 241 clamped at the top of the drying box 21 and positioned above the grinding roller 22, and a stirring piece 242 arranged on the side wall of the top of the drying box 21 in a sliding manner, wherein the stirring piece 242 is a plate body with two ends sliding with sliding grooves formed in the side wall of the top of the drying box 21; the aperture of the screen 241 is 10mm;
the working principle of this embodiment is basically the same as that of embodiment 1, except that: pouring sample soil into the drying box 21, adjusting the sliding speed of the stirring piece 242 to accelerate the sample soil to be sieved, filtering stone with the aperture larger than 10mm after the sample soil falls into the screen 241, and then falling into the middle of the grinding roller 22; the screening assembly 24 is arranged at the top of the drying box 21, so that broken stones and massive hard sundries in soil can be effectively filtered, and the grinding roller 22 of the grinding device 2 is effectively prevented from being damaged by sharp objects in the using process.
Claims (5)
1. The portable detachable combined soil heavy metal pretreatment device is characterized by comprising a mounting shell (1), a grinding device (2) detachably mounted at the top of the mounting shell (1), a liquid adding device (3) arranged at the top of the mounting shell (1), and a digestion device (4) which can be respectively communicated with the bottoms of the grinding device (2) and the liquid adding device (3);
the mounting shell (1) comprises a shell, and a heating unit (11) is arranged in the shell;
the grinding device (2) comprises a drying box (21) clamped on the shell, a grinding roller (22) rotatably arranged in the drying box (21), a blanking pipe (23) arranged at a discharge hole at the bottom of the drying box (21), a first metering device and a first electromagnetic valve arranged in the blanking pipe (23), and a first motor for providing rotary power for the grinding roller (22);
the liquid adding device (3) comprises a driving component (31) and an adjusting component (32) connected with the driving component (31); the adjusting assembly (32) comprises a mounting base (321), a placing piece (322) arranged on the mounting base (321), 4 liquid storage pipes (323) detachably arranged inside the placing piece (322), a liquid outlet pipe (324) arranged inside the mounting shell (1) and capable of being communicated with the bottoms of the liquid storage pipes (323), and a second metering device arranged inside the liquid outlet pipe (324); nitric acid, hydrochloric acid, hydrofluoric acid and hypochlorous acid are respectively arranged in the liquid storage pipe (323), and a second electromagnetic valve is arranged at the bottom of the liquid storage pipe (323);
the digestion device (4) comprises an electric heating plate (41) arranged inside the heating unit (11), a circular guide rail (42) arranged on the electric heating plate (41), at least one crucible (43) arranged on the circular guide rail (42) in a sliding manner, and a second motor for providing rotary power for the circular guide rail (42).
2. The portable and detachable combined soil heavy metal pretreatment device according to claim 1, wherein a first gear (421) is arranged outside the circular guide rail (42), the driving assembly (31) comprises a rotating shaft (311) with one end arranged at the center of the mounting base (321) and penetrating the heating unit (11), and a second gear (312) arranged at the other end of the rotating shaft (311); the first gear (421) is in meshed transmission connection with the second gear (312).
3. The portable and detachable combined soil heavy metal pretreatment device according to claim 1, wherein the placing pieces (322) respectively comprise a placing body and a plurality of clamping pieces respectively arranged at two sides of the placing body; a placing groove (3221) for placing the liquid storage pipe (323) is formed in the placing body; the clamping piece comprises two threaded rods (3223) which are respectively arranged on two sides of the placing body, a clamping plate (3222) which is arranged at one end of the threaded rod (3223) and positioned in the placing groove (3221), and a knob (3224) which is arranged at the other end of the threaded rod (3223).
4. The portable and detachable combined soil heavy metal pretreatment device as claimed in claim 1, wherein the electric heating plate (41) is made of glass ceramic material, and the circular guide rail (42) is made of copper material.
5. A portable and detachable combined soil heavy metal pretreatment apparatus as claimed in claim 1, wherein a sieving assembly (24) is detachably provided on the top of said drying box (21); the sieving assembly (24) comprises a screen (241) clamped at the top of the drying box (21) and positioned above the grinding roller (22), and a poking piece (242) arranged on the side wall of the top of the drying box (21) in a sliding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320792437.8U CN219842227U (en) | 2023-04-12 | 2023-04-12 | Portable detachable combined soil heavy metal pretreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320792437.8U CN219842227U (en) | 2023-04-12 | 2023-04-12 | Portable detachable combined soil heavy metal pretreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219842227U true CN219842227U (en) | 2023-10-17 |
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ID=88304077
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320792437.8U Active CN219842227U (en) | 2023-04-12 | 2023-04-12 | Portable detachable combined soil heavy metal pretreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219842227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117871629A (en) * | 2024-03-11 | 2024-04-12 | 四川省科源工程技术测试中心有限责任公司 | Arable land heavy metal ion detection equipment based on electrochemical analysis survey |
-
2023
- 2023-04-12 CN CN202320792437.8U patent/CN219842227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117871629A (en) * | 2024-03-11 | 2024-04-12 | 四川省科源工程技术测试中心有限责任公司 | Arable land heavy metal ion detection equipment based on electrochemical analysis survey |
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