CN220559238U - Low-temperature freezing regeneration treatment device for macroporous resin - Google Patents
Low-temperature freezing regeneration treatment device for macroporous resin Download PDFInfo
- Publication number
- CN220559238U CN220559238U CN202322001680.6U CN202322001680U CN220559238U CN 220559238 U CN220559238 U CN 220559238U CN 202322001680 U CN202322001680 U CN 202322001680U CN 220559238 U CN220559238 U CN 220559238U
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- macroporous resin
- regeneration
- ethanol
- freezing
- cavity
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- 239000011347 resin Substances 0.000 title claims abstract description 94
- 229920005989 resin Polymers 0.000 title claims abstract description 94
- 238000011069 regeneration method Methods 0.000 title claims abstract description 76
- 230000008929 regeneration Effects 0.000 title claims abstract description 75
- 238000007710 freezing Methods 0.000 title claims abstract description 50
- 230000008014 freezing Effects 0.000 title claims abstract description 50
- 238000011282 treatment Methods 0.000 title claims abstract description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000007599 discharging Methods 0.000 claims abstract description 24
- 238000005057 refrigeration Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 8
- 239000004744 fabric Substances 0.000 claims description 6
- 230000001172 regenerating effect Effects 0.000 claims 5
- 238000001914 filtration Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 14
- 238000005406 washing Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 9
- 238000000926 separation method Methods 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 5
- 241000180649 Panax notoginseng Species 0.000 description 4
- 235000003143 Panax notoginseng Nutrition 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 244000131316 Panax pseudoginseng Species 0.000 description 2
- 235000003181 Panax pseudoginseng Nutrition 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 2
- 229930182490 saponin Natural products 0.000 description 2
- 150000007949 saponins Chemical class 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241001233242 Lontra Species 0.000 description 1
- 241000208343 Panax Species 0.000 description 1
- 235000002791 Panax Nutrition 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002481 ethanol extraction Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000008736 traumatic injury Effects 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a low-temperature freezing regeneration treatment device for macroporous resin, which comprises a refrigeration house and a refrigerator, wherein the interior of the refrigeration house is divided into a freezing cavity and a filtering cavity, a regeneration tank is arranged in the freezing cavity, a discharge pipe is arranged at the bottom of the regeneration tank, a discharge pipe is arranged at the bottom of the filtering cavity, a spiral discharging machine is arranged in the filtering cavity, the lower end of the discharge pipe is communicated with a feed inlet of the spiral discharging machine, the discharge end of the spiral discharging machine extends out of the filtering cavity, a cylinder of the spiral discharging machine positioned in the filtering cavity is of a filter cylinder structure, a storage bin, a spiral feeding machine and an ethanol conveying pipe are arranged above the refrigeration house, the bottom of the storage bin is communicated with the feed inlet of the spiral feeding machine, the discharge outlet of the spiral feeding machine is communicated with the top of the freezing cavity through a feed pipe, and the ethanol conveying pipe is communicated with the top of the freezing cavity through a feed pipe. The utility model has the advantages of simple operation, time and labor saving, high automation degree and obvious economic and social values.
Description
Technical Field
The utility model relates to the technical field of pseudo-ginseng extraction equipment, in particular to a low-temperature freezing regeneration treatment device for macroporous resin.
Background
Notoginseng radix is a traditional and common rare Chinese medicinal material of Panax of Araliaceae, and is used for treating traumatic injury and preventing thrombosis, at present, the method for extracting Notoginseng radix total saponin by Notoginseng radix mainly comprises ethanol extraction method, genetic extraction-macroporous resin method or water extraction-ethanol precipitation-macroporous resin method, and during the process of extracting Notoginseng radix total saponin by the latter two methods, macroporous resin adheres to a large amount of residues inside and on surface after repeated use, and adsorption efficiency is reduced, and then regeneration treatment is required.
Through repeated experimental study, the macroporous resin is firstly subjected to acid washing and alkali washing, then ethanol is utilized to carry out low-temperature freezing soaking treatment, so that the ethanol can be promoted to better permeate into the molecule of the macroporous resin, and further trace impurities remained in the macroporous resin are thoroughly washed out, the adsorption performance of the macroporous resin is recovered to the original level, and the service life of the macroporous resin is prolonged. However, the following problems are also involved in the low-temperature freezing regeneration treatment of macroporous resins: firstly, before macroporous resin is frozen, acid washing, alkali washing and other treatments are usually carried out, then the macroporous resin is transferred into a refrigeration tank for freezing, ethanol is filtered after the freezing is finished, and the macroporous resin is removed from the refrigeration tank, so that the process is time-consuming and labor-consuming, and the working efficiency is low; secondly, because no special macroporous resin refrigerating device exists, the operation processes of loading macroporous resin into a refrigerating tank, taking macroporous resin out of the refrigerating tank, adding ethanol and the like all need to be manually participated, the automation degree is low, and the use requirements of enterprises can not be met. Therefore, the development of the low-temperature freezing regeneration treatment device for the macroporous resin, which is simple to operate, time-saving and labor-saving and high in automation degree, is objectively required.
Disclosure of Invention
The utility model aims to provide a low-temperature freezing regeneration treatment device for macroporous resin, which is simple to operate, time-saving and labor-saving and has high automation degree.
The utility model aims at realizing the purposes, the refrigerator comprises a refrigerator and a refrigerator, wherein the refrigerator is internally divided into a freezing cavity and a filtering cavity in sequence from top to bottom through a partition plate, a regeneration tank is arranged in the freezing cavity, a discharge pipe is arranged at the bottom of the regeneration tank, the lower end of the discharge pipe stretches into the filtering cavity, a valve is arranged on the discharge pipe below the partition plate, a liquid discharge pipe is arranged at the bottom of the filtering cavity, a spiral discharger is arranged in the filtering cavity, the lower end of the discharge pipe is communicated with a feed inlet of the spiral discharger, the discharge end of the spiral discharger stretches out of the filtering cavity, a cylinder of the spiral discharger in the filtering cavity is of a filter cylinder structure, a feed bin, the spiral feeder and an ethanol conveying pipe are arranged above the refrigerator, the bottom of the feed bin is communicated with the feed inlet of the spiral feeder, the discharge outlet of the spiral feeder is communicated with the top of the freezing cavity through a feed pipe, and the refrigerator is communicated with the freezing cavity.
Further, the spiral discharger is obliquely arranged, the lower end of the spiral discharger is positioned in the filter cavity, and the upper end of the spiral discharger is positioned outside the filter cavity.
Further, the upper part of the regeneration tank is provided with an ethanol inlet, the lower part of the regeneration tank is provided with an ethanol outlet, the ethanol inlet and the ethanol outlet are communicated through a circulating pipe, and the circulating pipe is provided with a circulating pump.
Further, a filter cloth is arranged at the ethanol outlet.
Further, be provided with the montant on the vertical lead of regeneration jar, the cylinder is installed at the top of freezer, and the piston rod of cylinder stretches into in the regeneration jar back and is connected with the upper end of montant, and the lower extreme symmetry of montant articulates there are two otter boards, and the below of montant is provided with the dog, and the cross-sectional shape of dog is the isosceles triangle that the apex angle was up.
Further, the number of the regeneration tanks is plural, and the plural regeneration tanks are arranged side by side in the freezing chamber.
When the utility model is operated, the macroporous resin after washing treatment such as acid washing, alkali washing and the like is arranged in a bin, is stably and uniformly fed into a freezing cavity by a screw feeder, then a certain amount of ethanol is introduced according to the amount of the macroporous resin in the freezing cavity, so that all the macroporous resin is ensured to be soaked in ethanol liquid, the internal space of the refrigerator can be refrigerated by a refrigerator, the temperature in the refrigerator is reduced to a required low temperature range, the low-temperature refrigeration state is kept, the low-temperature refrigeration regeneration treatment of the macroporous resin is realized, after the regeneration is finished, a valve is opened, the ethanol and the macroporous resin fall into a screw discharger together, the macroporous resin is discharged under the conveying of the screw discharger, the ethanol falls into a filter cavity through a filter hole on a cylinder of the screw discharger and is discharged from a liquid discharge pipe, and the whole feeding, refrigeration regeneration, separation of the ethanol and the macroporous resin are completed. In the utility model, the processes of adding macroporous resin and ethanol into the regeneration tank, filtering and separating the ethanol and the macroporous resin, discharging the macroporous resin after filtering and the like are all automatically operated by the device, so that the time and the labor are saved, and the working efficiency of the low-temperature freezing regeneration treatment of the macroporous resin is improved; meanwhile, the addition amount of the macroporous resin, the addition amount of the ethanol, the freezing regeneration time length, the filtration separation of the macroporous resin and the ethanol and the discharge of the macroporous resin are all automatically carried out, the manual participation is not needed, the automation degree is high, the operation and the control of the whole treatment process are more convenient, and the regeneration requirement of enterprises on the macroporous resin can be met. The utility model has the advantages of simple operation, time and labor saving, high automation degree and obvious economic and social values.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
in the figure: the device comprises a 1-refrigeration house, a 2-refrigerator, a 3-partition board, a 4-refrigeration cavity, a 5-filter cavity, a 6-regeneration tank, a 7-liquid discharge pipe, an 8-spiral discharging machine, a 9-storage bin, a 10-spiral feeding machine, an 11-ethanol conveying pipe, a 12-circulating pipe, a 13-circulating pump, a 14-filter cloth, a 15-vertical rod, a 16-cylinder, a 17-screen board and a 18-stop block.
Description of the embodiments
The utility model is further described below with reference to the accompanying drawings, without limiting the utility model in any way, and any alterations or modifications based on the utility model are within the scope of the utility model.
As shown in fig. 1, the refrigerator comprises a refrigerator 1 and a refrigerator 2, wherein the refrigerator 1 and the refrigerator 2 are both in the prior art, the refrigerator 2 is used for refrigerating the refrigerator 1, the inside of the refrigerator 1 is sequentially divided into a freezing cavity 4 and a filter cavity 5 from top to bottom through a partition plate 3, a regeneration tank 6 is arranged in the freezing cavity 4, the bottom of the regeneration tank 6 is provided with a discharge pipe, the lower end of the discharge pipe stretches into the inside of the filter cavity 5, a valve is arranged on the discharge pipe below the partition plate 3, the bottom of the filter cavity 5 is provided with a discharge pipe 7, a spiral discharger 8 is arranged in the filter cavity 5, the lower end of the discharge pipe is communicated with a feed inlet of the spiral discharger 8, the discharge end of the spiral discharger 8 stretches out of the filter cavity 5, a cylinder of the spiral discharger 8 positioned in the filter cavity 5 is of a filter cylinder structure, a feed bin 9, the spiral feeder 10 and an ethanol conveying pipe 11 are arranged above the refrigerator 1, the bottom of the feed bin 9 is communicated with the feed inlet of the spiral feeder 10, the discharge port of the spiral feeder 10 is communicated with the top of the freezing cavity 4 through the feed pipe, and the ethanol conveying pipe 11 is communicated with the top of the refrigerating cavity 2 through the feed pipe 4. The screw feeder 10 and the screw discharger 8 are both existing screw conveying mechanisms for conveying macroporous resin. The utility model uses ethanol to freeze and soak the macroporous resin at low temperature, which can promote the ethanol to better permeate into the molecule of the macroporous resin, further thoroughly clean the trace impurities remained in the macroporous resin, restore the adsorption performance of the macroporous resin to the original level and improve the service life of the macroporous resin.
When the utility model is operated, the macroporous resin subjected to washing treatment such as acid washing, alkali washing and the like is arranged in a bin 9, is stably and uniformly fed into a freezing cavity 4 by a screw feeder 10, then a certain amount of ethanol is introduced according to the amount of the macroporous resin in the freezing cavity 4, so that all the macroporous resin is ensured to be soaked in the ethanol liquid, namely, the inner space of the refrigerator 1 can be refrigerated by a refrigerator 2, the temperature in the refrigerator 1 is reduced to a required low temperature range, the low temperature refrigeration state is kept, the ethanol is in an unset liquid state, the low temperature refrigeration regeneration treatment of the macroporous resin is realized, after the regeneration is finished, a valve is opened, the ethanol and the macroporous resin fall into a screw discharger 8 together, the macroporous resin is discharged under the conveying of the screw discharger 8, and the ethanol falls into a filter cavity 5 through a filter hole on a cylinder of the screw discharger 8 and is discharged from a liquid discharge pipe 7, and the whole feeding, refrigeration regeneration, ethanol and macroporous resin separation and discharge processes are completed. In the utility model, the processes of adding macroporous resin and ethanol into the regeneration tank 6, filtering and separating the ethanol and the macroporous resin, discharging the macroporous resin after filtering and the like are all automatically operated by the device, so that the time and the labor are saved, and the working efficiency of the low-temperature freezing regeneration treatment of the macroporous resin is improved; meanwhile, the addition amount of the macroporous resin, the addition amount of the ethanol, the freezing regeneration time length, the filtration separation of the macroporous resin and the ethanol and the discharge of the macroporous resin are all automatically carried out, the manual participation is not needed, the automation degree is high, the operation and the control of the whole treatment process are more convenient, and the regeneration requirement of enterprises on the macroporous resin can be met.
In order to facilitate separation of macroporous resin and ethanol, the separation effect is improved, the spiral discharging machine 8 is obliquely arranged, the lower end of the spiral discharging machine 8 is positioned in the filter cavity 5, and the upper end of the spiral discharging machine is positioned outside the filter cavity 5.
The upper part of the regeneration tank 6 is provided with an ethanol inlet, the lower part is provided with an ethanol outlet, the ethanol inlet and the ethanol outlet are communicated through a circulating pipe 12, and the circulating pipe 12 is provided with a circulating pump 13. In order to avoid the problems, the ethanol at the lower part of the regeneration tank 6 is pumped to the upper part of the regeneration tank through the circulating pump 13, the total amount of the ethanol in the regeneration tank 6 is unchanged, the macroporous resin can be ensured to be completely immersed into the ethanol, the ethanol in the regeneration tank 6 is in a circulating flowing state in such a way, impurities discharged from the macroporous resin can be taken away in time, and the freezing and regeneration efficiency of the macroporous resin is improved. In the implementation of the utility model, in order to avoid the ethanol absorbing external heat in the circulation process, a layer of heat insulation material can be wrapped on the circulation pipe 12, so that the external heat is prevented from being transferred to the ethanol to improve the work load of the refrigerator 2 and prevent the increase of energy consumption.
The filter cloth 14 is arranged at the ethanol outlet, when the ethanol is discharged from the ethanol outlet, part of macroporous resin is always carried, the circulating pipe 12 is blocked for a long time, the normal operation of the device is affected, the filter cloth 14 is arranged for avoiding the situation, and the macroporous resin is filtered by the filter cloth 14, so that the ethanol can normally circulate.
A vertical rod 15 is arranged on the vertical line of the regeneration tank 6, an air cylinder 16 is arranged at the top of the refrigeration house 1, a piston rod of the air cylinder 16 stretches into the regeneration tank 6 and then is connected with the upper end of the vertical rod 15, two net plates 17 are symmetrically hinged at the lower end of the vertical rod 15, a stop block 18 is arranged below the vertical rod 15, the cross section of the stop block 18 is isosceles triangle with an upward apex angle, when the freezing regeneration of macroporous resin is completed, a valve is opened to discharge the macroporous resin, the macroporous resin can be blocked, the smooth discharge of the macroporous resin is influenced, in order to avoid the situation, the net plates 17 are arranged, the vertical rod 15 is pressed down by the air cylinder 16 before the macroporous resin is filled into the regeneration tank 6, the net plates 17 are driven to move downwards by the vertical rod 15 and blocked by the stop block 18, the two net plates 17 are continuously separated after rotating along the hinge position, and the included angle between the two net plates 17 is continuously increased, until the end of the screen 17 is propped against the side wall of the regeneration tank 6, after the macroporous resin is filled into the regeneration tank 6 and is positioned on the screen 17, after the freezing regeneration is finished, the air cylinder 16 drives the vertical rods 15 and one end of the screen 17 to move upwards, the lower end of the screen 17 is gradually far away from the side wall of the regeneration tank 6 and moves downwards under the pressure of the macroporous resin, the included angle between the two screens 17 is continuously reduced to be in a continuously closed state, a gap is further formed between the end of the screen 17 and the side wall of the regeneration tank 6, the macroporous resin can fall through the gap, and as the macroporous resin falling through the gap is not too much, the macroporous resin can smoothly fall into the spiral discharging machine 8 until all the macroporous resin is discharged, and then the air cylinder 16 is reset, so that the smooth discharging of the macroporous resin is realized, and the effect of blocking prevention is realized.
The number of regeneration tanks 6 is a plurality, the regeneration tanks 6 are arranged in the freezing chamber 4 side by side, the utility model is used for low-temperature freezing regeneration of macroporous resin, the perforated resin is immersed in ethanol, the temperature is reduced to be within a required low-temperature range, the temperature can be reduced to be between-4 ℃ and-18 ℃ in practical implementation, and the freezing is kept for 12-24 hours within the temperature range, and considering that the time of freezing regeneration is longer, if only one regeneration tank 6 is arranged, only one batch of macroporous resin can be processed at a time, the processing efficiency is not high, and especially when the number of macroporous resin needing regeneration is more, the processing time of the whole macroporous resin is too long, so the plurality of regeneration tanks 6 are arranged, the interval time between two batches of macroporous resin is reduced, and the regeneration efficiency is improved. Preferably, when the large-scale regeneration treatment is performed on the macroporous resin, the number of the regeneration tanks 6 is not less than 12, at this time, the last regeneration tank 6 starts to perform the freezing regeneration, the first regeneration tank 6 has the freezing time, and the materials can be discharged, and the like, so that the large-scale regeneration treatment of the macroporous resin can be continuously performed.
In actual use, the macroporous resin after washing by acid washing, alkali washing, water washing and the like is filled into a regeneration tank 6, ethanol is introduced into the regeneration tank 6 until all the macroporous resin is submerged, the liquid level of the introduced ethanol is higher than that of the macroporous resin by more than 4cm, the volume concentration of the ethanol is not lower than 70 percent, the freezing temperature is between minus 4 ℃ and minus 18 ℃, the freezing time is between 12 and 24 hours, and then the macroporous resin is separated from the ethanol and is washed by clear water until no alcohol smell exists. The practice proves that the macroporous resin regenerated by the device has obvious regeneration effect, the use times are higher, and the extraction purity of the pseudo-ginseng active ingredients can be ensured.
Claims (6)
1. A low-temperature freezing regeneration treatment device for macroporous resin comprises a cold storage (1) and a refrigerator (2), and is characterized in that the inside of the cold storage (1) is sequentially divided into a freezing cavity (4) and a filter cavity (5) from top to bottom through a partition plate (3), a regeneration tank (6) is arranged in the freezing cavity (4), a discharging pipe is arranged at the bottom of the regeneration tank (6), the lower end of the discharging pipe stretches into the inside of the filter cavity (5), a valve is arranged on the discharging pipe below the partition plate (3), a liquid discharging pipe (7) is arranged at the bottom of the filter cavity (5), a spiral discharging machine (8) is arranged in the filter cavity (5), the lower end of the discharging pipe is communicated with a feed port of the spiral discharging machine (8), the discharge port of the spiral discharging machine (8) stretches out of the outside of the filter cavity (5), a cylinder of the spiral discharging machine (8) positioned in the filter cavity (5) is of a filter cylinder structure, a storage bin (9), a spiral feeding machine (10) and an ethanol conveying pipe (11) are arranged above the cold storage (1), the bottom of the partition plate (3) is communicated with the feed port (10) of the spiral feeding machine (10) through the feed port of the spiral feeding machine (4), the top of the spiral feeding machine (10) is communicated with the top of the feed port (4), the refrigerator (2) is communicated with the freezing cavity (4).
2. The low-temperature freezing and regenerating treatment device for macroporous resin according to claim 1, wherein the spiral discharging machine (8) is obliquely arranged, the lower end of the spiral discharging machine (8) is positioned in the filter cavity (5), and the upper end of the spiral discharging machine is positioned outside the filter cavity (5).
3. The low-temperature freezing and regenerating treatment device for macroporous resin according to claim 1, wherein the upper part of the regenerating tank (6) is provided with an ethanol inlet, the lower part of the regenerating tank is provided with an ethanol outlet, the ethanol inlet and the ethanol outlet are communicated through a circulating pipe (12), and the circulating pipe (12) is provided with a circulating pump (13).
4. A low-temperature freezing and regenerating device for macroporous resin according to claim 3, wherein a filter cloth (14) is arranged at the outlet of the ethanol.
5. The low-temperature freezing regeneration treatment device for macroporous resin according to claim 1, wherein a vertical rod (15) is arranged on a vertical line of the regeneration tank (6), an air cylinder (16) is arranged at the top of the refrigeration house (1), a piston rod of the air cylinder (16) stretches into the regeneration tank (6) and is connected with the upper end of the vertical rod (15), two net plates (17) are symmetrically hinged to the lower end of the vertical rod (15), a stop block (18) is arranged below the vertical rod (15), and the cross section of the stop block (18) is isosceles triangle with an upward vertex angle.
6. The apparatus for cryogenic refrigeration regeneration of macroporous resins of claim 1, wherein the number of regeneration tanks (6) is plural, and the plurality of regeneration tanks (6) are arranged side by side in the freezing chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322001680.6U CN220559238U (en) | 2023-07-28 | 2023-07-28 | Low-temperature freezing regeneration treatment device for macroporous resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322001680.6U CN220559238U (en) | 2023-07-28 | 2023-07-28 | Low-temperature freezing regeneration treatment device for macroporous resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220559238U true CN220559238U (en) | 2024-03-08 |
Family
ID=90093714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322001680.6U Active CN220559238U (en) | 2023-07-28 | 2023-07-28 | Low-temperature freezing regeneration treatment device for macroporous resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220559238U (en) |
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2023
- 2023-07-28 CN CN202322001680.6U patent/CN220559238U/en active Active
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