CN112755642A - Purification device and method of use thereof - Google Patents
Purification device and method of use thereof Download PDFInfo
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- CN112755642A CN112755642A CN202011588788.4A CN202011588788A CN112755642A CN 112755642 A CN112755642 A CN 112755642A CN 202011588788 A CN202011588788 A CN 202011588788A CN 112755642 A CN112755642 A CN 112755642A
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- 238000000746 purification Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000018044 dehydration Effects 0.000 claims abstract description 24
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 4
- 229920000297 Rayon Polymers 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 2
- 239000000945 filler Substances 0.000 description 7
- 239000000523 sample Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 231100000678 Mycotoxin Toxicity 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002636 mycotoxin Substances 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229930013292 trichothecene Natural products 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- 230000023555 blood coagulation Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012521 purified sample Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000012763 reinforcing filler Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
- LZAJKCZTKKKZNT-PMNGPLLRSA-N trichothecene Chemical compound C12([C@@]3(CC[C@H]2OC2C=C(CCC23C)C)C)CO1 LZAJKCZTKKKZNT-PMNGPLLRSA-N 0.000 description 1
- 150000003327 trichothecene derivatives Chemical class 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
-
- 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
- G01N1/34—Purifying; Cleaning
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention discloses a purification device and a using method thereof, and relates to the technical field of purification equipment. The invention comprises the following steps: the lower side of the first cylinder is in threaded connection with a second cylinder, an upper dehydration layer, a filter layer and a lower dehydration layer are arranged in the first cylinder, and a check valve assembly is arranged in the second cylinder; the check valve assembly includes: locate first spacing ring, four fixed plates of second cylinder inner wall, the fixed ring is installed to the tip of four fixed plates. According to the one-way valve assembly, when the one-way valve is damaged, the one-way valve assembly can be replaced only by rotating the fixed column and separating the fixed column from the fixed circular ring through the fixed circular disc, the operation is convenient and rapid, the purification working efficiency is improved, and the spring can be sealed by the sealing element, so that the contact between the spring and external moisture is reduced.
Description
Technical Field
The invention belongs to the technical field of purification equipment, and particularly relates to a purification device and a using method thereof.
Background
The purifying column is an intermediate device suitable for analyzing pesticide residue and forbidden substances in vegetables and fruits.
Patent application with publication number CN104645666A discloses a trichothecene purification column and a purification method thereof, wherein the purification column is provided with a composite matrix filler, and the composite matrix filler comprises: the nitric acid oxidation treatment method of the nano graphitized carbon black comprises the following steps: and (3) obtaining a suspension solution and a precipitate layer, heating and boiling until the solution is layered, keeping the pH value of the supernatant liquid unchanged, and filtering the layered solution to obtain the final nano graphitized carbon black after nitric acid oxidation treatment. A method for purifying trichothecenes from a sample can isolate mycotoxins. The operation process of the invention is simple, the filler is suitable for samples with different matrixes, the application range of different types of mycotoxins is wide, the purification effect is good, the filler is treated by a special process, the structure of the filler is improved, the filler has a good effect on the selective purification of the toxin samples, and the effect of the composite filler plays a more optimized role in the purification of the target object.
Most of the existing purification devices have complicated structures, and when the one-way valves are damaged, the maintenance work is inconvenient due to the complicated structure, and the purification cost is increased.
Disclosure of Invention
The invention aims to provide a purification device and a use method thereof, through the arranged check valve component, when the check valve is damaged, the replacement of the check valve component can be completed only by separating a rotating fixed column from a fixed circular ring through a fixed circular disc, the operation is convenient and rapid, the purification work efficiency is increased, and the arranged sealing element can seal a spring, reduce the contact between the spring and external moisture, reduce the occurrence of rusting of the spring due to the contact with the moisture, prolong the service life of the check valve component and solve the problems in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a purification apparatus comprising: the lower side of the first cylinder is in threaded connection with a second cylinder, an upper dehydration layer, a filter layer and a lower dehydration layer are arranged in the first cylinder, and a check valve assembly is arranged in the second cylinder; the check valve assembly includes: locate first spacing ring, four fixed plates of second cylinder internal side wall, the tip of four fixed plates installs fixed ring, and fixed ring thread fit has fixed disc, and the fixed column is installed to one side of fixed disc, and the tip elastic fit of fixed column has seal assembly.
Optionally, the lengths of the first cylinder and the second cylinder are both 10-35 cm, and the diameters of the first cylinder and the second cylinder are both 15-30 mm in columnar shape.
Optionally, the seal assembly comprises: the sealing member, sliding fit has the baffle in the sealing member, and the fixed column is connected with the baffle, and the week side of sealing member installs the spacing ring of second.
Optionally, a spring is installed in the sealing element, one end of the spring is connected with the sealing element, and the other end of the spring is connected with the baffle.
Optionally, the outer side wall of the first cylinder is provided with a first external thread, the inner side wall of the second cylinder is provided with a first internal thread, and the first external thread is matched with the first internal thread.
Optionally, the outer side wall of the fixed disc is provided with a second external thread, the inner side wall of the fixed ring is provided with a second internal thread, and the second external thread is matched with the second internal thread.
Optionally, a first sealing flat gasket is arranged between the second limiting ring and the first limiting ring, and a second sealing flat gasket is arranged between the sealing element and the baffle.
Optionally, the upper side of the first column is provided with an upper sealing cover, and the lower side of the second column is provided with a lower sealing cover.
Optionally, first filter paper is arranged between the upper dehydration layer and the filter layer, second filter paper is arranged between the filter layer and the lower dehydration layer, and the first filter paper and the second filter paper are both made of viscose fibers.
A use method of a purification device is characterized in that: the method comprises the following steps:
the method comprises the following steps: installing the check valve component into the second column body through the fixed circular ring;
step two: putting the lower dehydration layer into the first column from the end of the first column, then putting a second filter paper, and then mixing C8 carbon powder, diatomite mixture and activated carbon according to the ratio of 2: 3: 2, mixing the materials in a weight ratio, placing the mixture above the second filter paper while compacting, placing the first filter paper above the filter layer after the filter layer is completely filled, and finally placing the upper dehydration layer above the first filter paper;
step three: and screwing the first column body and the second column body through threads.
The embodiment of the invention has the following beneficial effects:
according to the one-way valve assembly, when the one-way valve is damaged, the one-way valve assembly can be replaced only by separating the rotating fixed column from the fixed circular ring through the fixed circular disc, the operation is convenient and rapid, the purification working efficiency is improved, the spring can be sealed by the arranged sealing element, the contact between the spring and external moisture is reduced, the occurrence of rusting of the spring due to contact with the moisture is reduced, and the service life of the one-way valve assembly is prolonged.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view of a one-way valve assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a sealing member according to an embodiment of the present invention;
fig. 4 is a schematic view of a filter layer structure according to an embodiment of the invention.
Wherein the figures include the following reference numerals:
the device comprises a first cylinder 1, a second cylinder 2, a fixing plate 3, a fixing disc 4, a fixing ring 5, a fixing column 6, a baffle 7, a second limit ring 8, a sealing element 9, a spring 10, a first limit ring 11, a lower dehydration layer 12, a filter layer 13 and an upper dehydration layer 14.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
Referring to fig. 1-4, in the present embodiment, a purification apparatus is provided, which includes: the device comprises a first cylinder 1, wherein a second cylinder 2 is in threaded connection with the lower side of the first cylinder 1, an upper dehydration layer 14, a filter layer 13 and a lower dehydration layer 12 are arranged in the first cylinder 1, and a check valve assembly is arranged in the second cylinder 2; the check valve assembly includes: locate 2 inside walls of second cylinder first spacing ring 11, four fixed plates 3, fixed ring 5 is installed to the tip of four fixed plates 3, and fixed ring 5 female fit has fixed disc 4, and fixed column 6 is installed to one side of fixed disc 4, and the tip elastic fit of fixed column 6 has seal assembly.
The application of one aspect of the embodiment is as follows: when the purifying device needs to purify a sample to be detected, the sample to be detected is firstly put into the purifying device from the end part of the first cylinder 1, the sample to be detected sequentially passes through the upper dehydration layer 14, the filtering layer 13 and the lower dehydration layer 12 for purification, and the purified sample to be detected passes through the check valve assembly and then flows out of the second cylinder 2, so that the purifying process of the sample to be detected is completed.
Through the check valve subassembly that sets up, when the check valve damages, only need to rotate fixed column 6, fixed column 6 separates with fixed ring 5 through fixed disc 4, can accomplish the change to check valve subassembly, convenient operation is swift, the work efficiency of purification has been increased, and the sealing member 9 that sets up, sealing member 9 can seal spring 10, reduce the contact of spring 10 with external moisture, it takes place because of the rusty condition of contact moisture to have reduced spring 10, check valve subassembly's life has been increased.
The length of the first cylinder 1 and the length of the second cylinder 2 are both 10-35 cm, and the diameter of the first cylinder 1 and the diameter of the second cylinder 2 are both 15-30 mm in a columnar shape.
The seal assembly of the present embodiment includes: sealing member 9, sliding fit has baffle 7 in sealing member 9, and fixed column 6 is connected with baffle 7, and the week side of sealing member 9 is installed the spacing ring 8 of second.
Install spring 10 in the sealing member 9 of this embodiment, spring 10's one end is connected with sealing member 9, and spring 10's the other end is connected with baffle 7, and through spring 10, the spacing ring 8 of second that set up, spring 10 controls the flow direction of detecting the sample through the spacing ring 8 of second, and the condition that the reduction detected the sample and flow back takes place.
First external screw thread has been seted up to the lateral wall of the first cylinder 1 of this embodiment, and first internal thread has been seted up to the inside wall of second cylinder 2, and first external screw thread and first internal thread cooperate, through the first internal thread and the first internal thread that set up, both mutually support to purifier's installation has been made things convenient for.
The second external screw thread has been seted up to the lateral wall of the fixed disc 4 of this embodiment, and the second internal thread has been seted up to the inside wall of fixed ring 5, and the second external screw thread cooperatees with the second internal thread, can conveniently be to relief pressure valve unit's change through the second internal thread and the second external screw thread that set up.
Be provided with first sealed plain washer between the spacing ring 8 of second of this embodiment and the first spacing ring 11, be provided with the sealed plain washer of second between sealing member 9 and the baffle 7, can reduce spring 10 and external moisture contact through the sealed plain washer of second that sets up, increase spring 10's life.
The upper side of the first column body 1 of the embodiment is provided with an upper sealing cover, the lower side of the second column body 2 is provided with a lower sealing cover, and the situation that the purifying device is polluted when being stored can be reduced through the arranged upper sealing cover and the lower sealing cover.
In this embodiment, a first filter paper is disposed between the upper dehydration layer 14 and the filter layer 13, a second filter paper is disposed between the filter layer 13 and the lower dehydration layer 12, and the first filter paper and the second filter paper are both made of viscose fiber.
A use method of a purification device is characterized in that: the method comprises the following steps:
the method comprises the following steps: the check valve component is installed into the second column body 2 through the fixed circular ring 5;
step two: the lower dehydration layer 12 is put into the first cylinder 1 from the end of the first cylinder 1, then a second filter paper is put, and then C8 carbon powder, diatomite mixture and activated carbon are mixed according to the ratio of 2: 3: 2, placing the mixture above the second filter paper while compacting, placing the first filter paper above the filter layer 13 after the filter layer 13 is completely filled, and finally placing the upper dehydration layer 14 above the first filter paper;
step three: the first cylinder 1 and the second cylinder 2 are screwed together through threads.
The diatomaceous earth mixture used in the present invention comprises: 15 to 20 percent of wood pulp, 15 to 20 percent of wood fiber, 35 to 40 percent of polypropylene fiber and 15 to 20 percent of diatomite
The diatomite used in the invention is a naturally-existing and soft siliceous sedimentary rock which is easily crushed into fine white to off-white powder and is formed by the cell wall sedimentation of the diatomite; light yellow or light gray, soft and light in texture, and can be easily ground into powder; the diatomite dried by the oven is composed of 80-90% of silicon dioxide, 2-4% of aluminum oxide and 0.5-2% of iron oxide, the diatomite is composed of diatom fossil remains, and the diatom is a hard shell protoorganism and is used as a filter aid, and comprises mild abrasive in metal polishing agents and toothpaste products, mechanical insecticides, liquid absorbents, paint flatting agents, reinforcing fillers in plastics and rubber, anti-blocking agents in plastic films, porous carriers of chemical catalysts, cat feces, activators in blood coagulation research, stable components of explosives, heat insulation materials and soil of potted plants and trees such as bonsais.
The above embodiments may be combined with each other.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Claims (10)
1. A purification apparatus, comprising: the device comprises a first cylinder (1), wherein a second cylinder (2) is in threaded connection with the lower side of the first cylinder (1), an upper dehydration layer (14), a filter layer (13) and a lower dehydration layer (12) are arranged in the first cylinder (1), and a check valve assembly is arranged in the second cylinder (2);
the check valve assembly includes: locate first spacing ring (11), four fixed plates (3) of second cylinder (2) inside wall, fixed ring (5) are installed to the tip of four fixed plates (3), and fixed ring (5) interior screw-thread fit has fixed disc (4), and fixed column (6) are installed to one side of fixed disc (4), and the tip elastic fit of fixed column (6) has seal assembly.
2. The purification apparatus according to claim 1, wherein the first cylinder (1) and the second cylinder (2) each have a length of 10 to 35cm, and the first cylinder (1) and the second cylinder (2) each have a cylindrical shape with a diameter of 15 to 30 mm.
3. The purification apparatus of claim 2, wherein the seal assembly comprises: sealing member (9), sliding fit has baffle (7) in sealing member (9), and fixed column (6) are connected with baffle (7), and second spacing ring (8) are installed to the week side of sealing member (9).
4. A cleaning device according to claim 3, characterized in that a spring (10) is arranged in the sealing element (9), one end of the spring (10) being connected to the sealing element (9) and the other end of the spring (10) being connected to the flap (7).
5. The purification device of claim 4, wherein the outer side wall of the first cylinder (1) is provided with a first external thread, the inner side wall of the second cylinder (2) is provided with a first internal thread, and the first external thread is matched with the first internal thread.
6. A purification apparatus according to claim 5, wherein the outer side wall of the fixed disk (4) is provided with a second external thread, the inner side wall of the fixed ring (5) is provided with a second internal thread, and the second external thread is matched with the second internal thread.
7. A cleaning apparatus according to claim 6, characterised in that a first flat sealing gasket is arranged between the second limiting ring (8) and the first limiting ring (11), and a second flat sealing gasket is arranged between the sealing element (9) and the baffle (7).
8. A purification apparatus according to claim 7, wherein the upper side of the first column (1) is provided with an upper sealing cover and the lower side of the second column (2) is provided with a lower sealing cover.
9. A purification apparatus according to claim 8, wherein a first filter paper is disposed between the upper dehydration layer (14) and the filter layer (13), a second filter paper is disposed between the filter layer (13) and the lower dehydration layer (12), and the first filter paper and the second filter paper are both made of viscose fiber.
10. A use method of a purification device is characterized in that: the method comprises the following steps:
the method comprises the following steps: the check valve component is installed into the second column body (2) through the fixed circular ring (5);
step two: putting the lower dehydration layer (12) into the first cylinder (1) from the end of the first cylinder (1), then putting a second filter paper, and then putting C8 carbon powder, diatomite mixture and activated carbon according to the ratio of 2: 3: 2, placing the mixture above the second filter paper while compacting, placing the first filter paper above the filter layer (13) after the filter layer (13) is completely filled, and finally placing the upper dehydration layer (14) above the first filter paper;
step three: the first column body (1) and the second column body (2) are screwed together through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588788.4A CN112755642A (en) | 2020-12-29 | 2020-12-29 | Purification device and method of use thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011588788.4A CN112755642A (en) | 2020-12-29 | 2020-12-29 | Purification device and method of use thereof |
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| CN112755642A true CN112755642A (en) | 2021-05-07 |
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| CN202011588788.4A Pending CN112755642A (en) | 2020-12-29 | 2020-12-29 | Purification device and method of use thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4357752A1 (en) * | 2022-10-20 | 2024-04-24 | Great Engineering Technology Corp. | Kit for extracting mycotoxin residues in agricultural products and method of obtaining primary test liquid from agricultural products using the same |
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| CN105318044A (en) * | 2014-07-31 | 2016-02-10 | 湖北泰和石化设备有限公司 | Elastic seal-sealing sleeve type check valve |
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| CN108051279A (en) * | 2017-06-26 | 2018-05-18 | 青岛贞正分析仪器有限公司 | It is a kind of for pre-treatment decontaminating column of Mycotoxin identification and preparation method thereof |
| CN208204109U (en) * | 2018-05-24 | 2018-12-07 | 永高股份有限公司 | Convenient for the spring-loaded check valve of connection |
| CN209354701U (en) * | 2018-10-24 | 2019-09-06 | 中国石油天然气股份有限公司 | check valve |
| CN209342725U (en) * | 2018-11-28 | 2019-09-03 | 保定迅来科技有限公司 | A kind of transformer oil feed liquor structure of automatic acid value tester |
| CN209245372U (en) * | 2018-12-17 | 2019-08-13 | 郑州海大液压技术有限公司 | A kind of guiding mechanism of one-way cock |
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| EP4357752A1 (en) * | 2022-10-20 | 2024-04-24 | Great Engineering Technology Corp. | Kit for extracting mycotoxin residues in agricultural products and method of obtaining primary test liquid from agricultural products using the same |
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