CN214346392U - Reaction unit for solid-liquid separation - Google Patents
Reaction unit for solid-liquid separation Download PDFInfo
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- CN214346392U CN214346392U CN202022715187.7U CN202022715187U CN214346392U CN 214346392 U CN214346392 U CN 214346392U CN 202022715187 U CN202022715187 U CN 202022715187U CN 214346392 U CN214346392 U CN 214346392U
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- liquid separation
- reaction
- tank body
- liquid
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- 239000007788 liquid Substances 0.000 title claims abstract description 142
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 141
- 238000000926 separation method Methods 0.000 title claims abstract description 122
- 239000002904 solvent Substances 0.000 claims abstract description 37
- 239000012295 chemical reaction liquid Substances 0.000 claims abstract description 32
- 238000005406 washing Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000706 filtrate Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000012265 solid product Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000007810 chemical reaction solvent Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- QZHPTGXQGDFGEN-UHFFFAOYSA-N chromene Chemical compound C1=CC=C2C=C[CH]OC2=C1 QZHPTGXQGDFGEN-UHFFFAOYSA-N 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- LOCAIGRSOJUCTB-UHFFFAOYSA-N indazol-3-one Chemical class C1=CC=C2C(=O)N=NC2=C1 LOCAIGRSOJUCTB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a reaction device for solid-liquid separation, belonging to the technical field of chemical reaction production devices; the utility model comprises a reaction tank body and a solid-liquid separation tank body; the solid-liquid separation tank body is arranged below the reaction tank body; a reaction material inlet is formed in the reaction tank body, and a reaction liquid outlet is formed in the bottom of the reaction tank body; a reaction liquid inlet of the solid-liquid separation tank body is connected with a reaction liquid outlet of the reaction tank body; the solid-liquid separation tank body is also provided with a washing liquid inlet and a washing liquid outlet and a solvent outlet, and the solvent outlet is connected with a solvent inlet on the reaction tank body; the reaction liquid in the reaction tank body directly enters a solid-liquid separation tank body for solid-liquid separation, so that the production efficiency is ensured; and the filtrate in the solid-liquid separation tank body can enter the reaction tank body through the solvent outlet to be continuously recycled.
Description
Technical Field
The utility model relates to a chemical reaction apparatus for producing technical field, more specifically say, relate to a reaction unit that can be used to solid-liquid separation.
Background
The chemical reaction tank is widely applied to various chemical reactions, has the advantages of closed reaction environment, high temperature resistance, corrosion resistance, sanitation, no environmental pollution and the like, and is a device which is widely used in the production process of the chemical enterprises at present. In addition, the existing chemical reaction tank can be correspondingly modified according to the needs of specific reactions so as to optimize the reaction environment needed by a specific reaction.
For example, in the process of preparing a drug intermediate chromene pyrimido indazolone derivative, the patent with the publication number of CN111484499A shows that a solid precipitated from a reaction system is subjected to suction filtration after standing to obtain a filter residue, so as to realize solid-liquid separation; in the actual production process, the prior art firstly carries out reaction in a reaction tank, and then carries out filter residue in the reaction tank to realize solid-liquid separation, but the following problems exist in the mode: 1. the method needs to finish the whole process by one reaction tank, and the environment required by the reaction process and the solid precipitation process is different, so that the requirement on the reaction tank is high, and the production cost of equipment is high; 2. the mode is difficult to realize continuous production, and the production efficiency is limited; 3. the filtration is carried out by adopting a suction filtration mode, and the requirement on suction filtration equipment is high and the energy consumption is high. In addition, the reaction tank in the prior art has difficulty in realizing effective recycling of the solvent.
Through retrieval, a full-automatic solid-liquid separation system is disclosed in the patent with publication number CN106881058A, in which a clean compressed air system is connected with the top of a reaction tank through a pipeline, a material/cleaning liquid supply pipeline extends to the lower part of the reaction tank, a reaction tank bypass is arranged at a cleaning liquid inlet stop valve of the reaction tank, a branch for connecting a cleaning ball of the reaction tank is arranged at a liquid inlet valve of the reaction tank, a branch for connecting a respirator of the reaction tank is arranged at the upper end of the reaction tank, the branch is connected with an inner chamber of the reaction tank, the reaction tank is connected with a temporary storage tank, the reaction tank bypass is connected at a position A, a branch is also arranged at the position A, the branch for connecting the cleaning ball of the temporary storage tank is arranged at the liquid inlet valve of the reaction tank, a sieve plate is arranged at the lower part of the reaction tank, supporting seats are arranged at the bottoms of the reaction tank and the temporary storage tank, weight sensors are arranged in the supporting seats, and the temporary storage tank is connected with a diaphragm pump through a liquid outlet valve of the temporary storage tank, the diaphragm pump is connected with the filter; in this scheme, the solid-liquid separation in the reaction solution is achieved, but it is difficult to achieve continuous reaction and efficient recycling of the reaction materials is difficult.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The invention aims to solve the technical problems that the reaction process is difficult to continuously carry out and materials are difficult to recycle in a reaction device in the prior art, and provides the reaction device for solid-liquid separation.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model relates to a reaction device for solid-liquid separation, which comprises a reaction tank body and a solid-liquid separation tank body; the solid-liquid separation tank body is arranged below the reaction tank body; a reaction material inlet is formed in the reaction tank body, and a reaction liquid outlet is formed in the bottom of the reaction tank body; a reaction liquid inlet of the solid-liquid separation tank body is connected with a reaction liquid outlet of the reaction tank body; the solid-liquid separation tank body is also provided with a washing liquid inlet and a washing liquid outlet and a solvent outlet, and the solvent outlet is connected with a solvent inlet on the reaction tank body.
Preferably, a solid-liquid separation filter plate is arranged at the bottom in the solid-liquid separation tank body, and a lifting driving mechanism is arranged on the solid-liquid separation filter plate and used for driving the solid-liquid separation filter plate to lift in the solid-liquid separation tank body.
Preferably, a second stirrer is arranged at the top in the solid-liquid separation tank body.
Preferably, the top of the reaction tank body is provided with a first stirrer.
Preferably, a heater is arranged outside the reaction tank body and used for increasing the temperature in the reaction tank body.
Preferably, a refrigerator is arranged outside the solid-liquid separation tank body, and the refrigerator is used for reducing the temperature in the solid-liquid separation tank body.
Preferably, the top of the reaction tank body is provided with a steam outlet, and the evaporation outlet is communicated with a reflux condensation pipe.
Preferably, a lift pump is provided between the solvent outlet and the solvent inlet.
Preferably, the lifting driving mechanism comprises a filter plate lifter and a lifting rope, the filter plate lifter is arranged at the top in the solid-liquid separation tank body, the filter plate lifter is connected with the upper end of the lifting rope, and the lower end of the lifting rope is connected to the solid-liquid separation filter plate.
Preferably, a stirring lifter is arranged on the second stirrer and used for driving the second stirrer to lift.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) the utility model relates to a reaction device for solid-liquid separation, which comprises a reaction tank body and a solid-liquid separation tank body; the solid-liquid separation tank body is arranged below the reaction tank body; a reaction material inlet is formed in the reaction tank body, and a reaction liquid outlet is formed in the bottom of the reaction tank body; a reaction liquid inlet of the solid-liquid separation tank body is connected with a reaction liquid outlet of the reaction tank body; the solid-liquid separation tank body is also provided with a washing liquid inlet and a washing liquid outlet and a solvent outlet, and the solvent outlet is connected with a solvent inlet on the reaction tank body; the reaction liquid in the reaction tank body directly enters a solid-liquid separation tank body for solid-liquid separation, so that the production efficiency is ensured; and the solvent in the solid-liquid separation tank body can enter the reaction tank body through the solvent outlet to be continuously recycled.
(2) The utility model discloses a reaction unit that can be used for solid-liquid separation, the bottom in the solid-liquid separation jar body is provided with the solid-liquid separation filter plate, be provided with lift actuating mechanism on the solid-liquid separation filter plate, lift actuating mechanism is used for driving the solid-liquid separation filter plate to go up and down in the solid-liquid separation jar body; through the lifting of the solid-liquid separation filter plate, the solid product and the liquid solvent are quickly and effectively separated.
(3) The utility model discloses a can be used to solid-liquid separation's reaction unit, the outside of the retort body is provided with the heater, the heater is used for improving the internal temperature of retort, further can also be provided with the refrigerator in the outside of the solid-liquid separation jar body, the refrigerator is used for reducing the internal temperature of solid-liquid separation jar, through the setting of above-mentioned heater and refrigerator, realizes independently adjusting the temperature of the retort body and the solid-liquid separation jar body to promote the production process in different stages.
(4) The utility model discloses a reaction device for solid-liquid separation, a second stirrer is arranged at the top in the solid-liquid separation tank body; a first stirrer is further arranged at the top of the reaction tank body; the reaction and washing efficiency of each stage can be effectively improved through the arrangement of the stirrer.
Drawings
FIG. 1 is a schematic structural diagram of a reaction apparatus for solid-liquid separation of the utility model;
fig. 2 is a schematic structural diagram of the reaction device for solid-liquid separation after lifting the solid-liquid separation filter plate and the second stirrer.
The reference numerals in the schematic drawings illustrate:
110. a reaction tank body; 111. a reaction material inlet; 112. a vapor outlet; 113. a reflux condenser tube; 114. a heat insulation plate; 115. a reaction liquid outlet; 116. a solvent inlet; 117. an on-off valve;
120. a solid-liquid separation tank body; 121. a reaction liquid inlet; 122. an inlet and an outlet for the washing liquid; 124. a solvent outlet; 125. a lift pump;
210. a heater; 220. a refrigerator;
310. a first stirrer; 320. a second agitator; 321. a stirring lifter;
410. a solid-liquid separation filter plate; 411. a filter plate lifter; 412. and (5) lifting the rope.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention. Meanwhile, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description only, and are not used to limit the implementable scope, and the relative relationship changes or adjustments may be considered to be within the implementable scope of the present invention without substantial technical changes; in addition, the embodiments of the present invention are not independent of each other, but may be combined.
Example 1
As shown in fig. 1, the reaction apparatus for solid-liquid separation of the present embodiment includes a reaction tank 110 and a solid-liquid separation tank 120; the solid-liquid separation tank 120 is disposed below the reaction tank 110, in this embodiment, the reaction apparatus is an integral reaction tank, the middle part of the reaction tank is provided with a heat insulation plate 114, the heat insulation plate 114 divides the interior of the reaction tank into two parts, the upper part is the reaction tank 110, and the lower part is the solid-liquid separation tank 120.
A reaction material inlet 111 is arranged above the reaction tank body 110, and a reaction liquid outlet 115 is arranged at the bottom of the reaction tank body 110; a reaction liquid inlet 121 of the solid-liquid separation tank 120 is connected with a reaction liquid outlet 115 of the reaction tank 110, and a switching valve 117 is arranged on a pipeline connecting the reaction liquid inlet 121 and the reaction liquid outlet 115. During the use process, reactants, a catalyst and a solvent can be added into the reaction tank body 110 through the reaction material inlet 111; after the reaction in the reaction tank 110 is completed to form the reaction liquid, the on-off valve 117 may be opened, and the reaction liquid flows from the reaction tank 110 to the solid-liquid separation tank 120 through the reaction liquid inlet 121 under the action of gravity to perform solid-liquid separation; the reaction liquid in the reaction tank 110 directly enters the solid-liquid separation tank 120 for solid-liquid separation, so that the reaction process in the reaction tank 110 and the solid-liquid separation process in the solid-liquid separation tank 120 can be independently and continuously carried out, and the production efficiency can be ensured to a certain extent.
A first stirrer 310 is arranged at the top of the reaction tank 110, a heater 210 is arranged outside the reaction tank 110, the heater 210 is used for increasing the temperature in the reaction tank 110, the reaction tank 110 is heated by the heater 210 to have a temperature suitable for reaction so as to promote the reaction, and the first stirrer 310 is arranged to further promote the reaction in the reaction tank 110, in this embodiment, the first stirrer 310 comprises a stirring blade and a motor for driving the stirring blade to rotate; the heater 210 is a heating pipe arranged on the outer wall of the reaction tank body 110; in addition, in this embodiment the pipeline of intercommunication is heat preservation pipeline between reaction liquid entry 121 and the reaction liquid export 115, and heat preservation pipeline's setting can keep warm to reaction liquid, avoids reaction liquid to a certain extent to appear the emergence of solid separation phenomenon in the heat preservation pipeline transportation, and then avoids pipeline blocking phenomenon's emergence.
In addition, a vapor outlet 112 is arranged at the top of the reaction tank 110, the vapor outlet 112 is communicated with a reflux condensation pipe 113, some reactants, reaction products or solvents may be evaporated in a reaction solution along with the reaction in the reaction tank 110, the arrangement of the evaporation outlet 112 is beneficial to maintaining a proper reaction pressure in the reaction tank 110, and the arrangement of the reflux condensation pipe 113 is beneficial to evaporating the evaporated reactants, reaction products or solvents and condensing reflux to continue to stay in the reaction tank 110.
In this embodiment, a solid-liquid separation filter plate 410 is disposed at the bottom inside the solid-liquid separation tank 120, and a lifting drive mechanism is disposed on the solid-liquid separation filter plate 410, and is configured to drive the solid-liquid separation filter plate 410 to lift inside the solid-liquid separation tank 120; solid-liquid separation is realized by lifting the solid-liquid separation filter plate 410; in this embodiment, the lifting driving mechanism includes a filter plate lifter 411 and a lifting rope 412, the filter plate lifter 411 is disposed at the top inside the solid-liquid separation tank 120, the filter plate lifter 411 is connected to the upper end of the lifting rope 412, the lower end of the lifting rope 412 is connected to the solid-liquid separation filter plate 410, the filter plate lifter 411 includes a motor and a reel, the motor drives the reel to rotate through a speed reducer, the reel rotates to make the lifting rope 412 lift the solid-liquid separation filter plate 410, and the solid-liquid separation filter plate 410 can fall when rotating in the reverse direction.
In the using process, the reaction liquid in the reaction tank 110 can be subjected to solid-liquid separation in the solid-liquid separation tank 120, and after the solid-liquid separation is finished, as shown in fig. 2, the solid-liquid separation filter plate 410 originally at the bottom of the solid-liquid separation tank 120 is lifted to bring the solid product above the liquid solvent, so as to realize the rapid and effective separation of the solid product and the liquid solvent.
A refrigerator 220 is arranged outside the solid-liquid separation tank body 120, and the refrigerator 220 is used for reducing the temperature in the solid-liquid separation tank body 120; the precipitation rate of the solid product is further increased by reducing the temperature in the solid-liquid separation tank 120.
A solvent outlet 124 is arranged on the solid-liquid separation tank body 120, the solvent outlet 124 is connected with the solvent inlet 116 on the reaction tank body 110, and a lift pump 125 is arranged between the solvent outlet 124 and the solvent inlet 116; after the solid-liquid separation is realized, the liquid solvent at the bottom of the solid-liquid separation tank 120 is pumped into the reaction tank 110 through the solvent outlet 124 by the lift pump 125 for recycling.
In addition, the solid-liquid separation tank 120 is also provided with a washing liquid inlet and outlet 122, after the solid product is separated from the liquid solvent, the solid-liquid separation filter plate 410 descends, and a washing agent is introduced through the washing liquid inlet and outlet 122 for washing, wherein the washing agent can be a solvent; in order to further improve the washing efficiency, a second stirrer 320 is arranged at the top inside the solid-liquid separation tank body 120, and the stirring of the second stirrer 320 is beneficial to washing the solid product; after washing, the solid-liquid separation filter plate 410 is lifted, solid products are separated from detergent, and the detergent can be pumped into the reaction tank body 110 through the solvent outlet 124 by the lifting pump 125 for recycling; when the reaction tank 110 does not need to pump in excessive solvent, the washing liquid can be discharged through the washing liquid inlet/outlet 122.
It should be noted that, in this embodiment, the second stirrer 320 is a liftable stirrer, the stirring lifter 321 is disposed on the second stirrer 320, the stirring lifter 321 is used for driving the second stirrer 320 to ascend and descend, the stirring lifter 321 includes a motor and a screw rod, the motor drives the screw rod to rotate through a speed reducer, and the second stirrer 320 is provided with a thread engaged with the screw rod, so as to drive the second stirrer 320 to ascend and descend. The second agitator 320 may be moved up and down according to the movement of the solid-liquid separation filter 410.
A product outlet is formed in the side of the solid-liquid separation tank 120, and the solid product is transported out through the product outlet after being washed.
The invention has been described in detail hereinabove with reference to specific exemplary embodiments thereof. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined in the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to be illustrative of the state of the art as developed and the meaning of the present technology and is not intended to limit the scope of the invention or the application and field of application of the invention.
More specifically, although exemplary embodiments of the invention have been described herein, the invention is not limited to these embodiments, but includes any and all embodiments modified, omitted, combined, e.g., between various embodiments, adapted and/or substituted, as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the invention should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.
Claims (10)
1. The reaction device for solid-liquid separation is characterized by comprising a reaction tank body (110) and a solid-liquid separation tank body (120); the solid-liquid separation tank body (120) is arranged below the reaction tank body (110); a reaction material inlet (111) is arranged on the reaction tank body (110), and a reaction liquid outlet (115) is arranged at the bottom of the reaction tank body (110); a reaction liquid inlet (121) of the solid-liquid separation tank body (120) is connected with a reaction liquid outlet (115) of the reaction tank body (110); the solid-liquid separation tank body (120) is also provided with a washing liquid inlet and outlet (122) and a solvent outlet (124), and the solvent outlet (124) is connected with a solvent inlet (116) on the reaction tank body (110).
2. The solid-liquid separation reaction device according to claim 1, wherein a solid-liquid separation filter plate (410) is arranged at the bottom inside the solid-liquid separation tank body (120), and a lifting driving mechanism is arranged on the solid-liquid separation filter plate (410) and used for driving the solid-liquid separation filter plate (410) to lift inside the solid-liquid separation tank body (120).
3. A reaction device for solid-liquid separation according to claim 1, characterized in that the top of the solid-liquid separation tank (120) is provided with a second stirrer (320).
4. The solid-liquid separation reactor device as claimed in claim 1, wherein the top of the reaction tank body (110) is provided with a first stirrer (310).
5. The solid-liquid separation reaction device according to claim 1, wherein a heater (210) is arranged outside the reaction tank body (110), and the heater (210) is used for increasing the temperature in the reaction tank body (110);
and/or a pipeline communicated between the reaction liquid inlet (121) and the reaction liquid outlet (115) is a heat-insulating pipeline.
6. A reaction apparatus usable for solid-liquid separation according to claim 1, characterized in that a refrigerator (220) is provided outside the solid-liquid separation tank (120), and the refrigerator (220) is used for lowering the temperature inside the solid-liquid separation tank (120).
7. The reaction device for solid-liquid separation according to claim 1, wherein a vapor outlet (112) is arranged at the top of the reaction tank body (110), and the vapor outlet (112) is communicated with a reflux condensation pipe (113).
8. A reactor apparatus for solid-liquid separation according to claim 1, wherein a lift pump (125) is provided between the solvent outlet (124) and the solvent inlet (116).
9. The reaction device for solid-liquid separation according to claim 2, wherein the lifting driving mechanism comprises a filter plate lifter (411) and a lifting rope (412), the filter plate lifter (411) is arranged at the top of the solid-liquid separation tank body (120), the filter plate lifter (411) is connected with the upper end of the lifting rope (412), and the lower end of the lifting rope (412) is connected to the solid-liquid separation filter plate (410).
10. The reaction device for solid-liquid separation according to claim 3, wherein the second stirrer (320) is provided with a stirring lifter (321), and the stirring lifter (321) is used for driving the second stirrer (320) to lift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715187.7U CN214346392U (en) | 2020-11-20 | 2020-11-20 | Reaction unit for solid-liquid separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022715187.7U CN214346392U (en) | 2020-11-20 | 2020-11-20 | Reaction unit for solid-liquid separation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214346392U true CN214346392U (en) | 2021-10-08 |
Family
ID=77977949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022715187.7U Expired - Fee Related CN214346392U (en) | 2020-11-20 | 2020-11-20 | Reaction unit for solid-liquid separation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214346392U (en) |
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2020
- 2020-11-20 CN CN202022715187.7U patent/CN214346392U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |