CN217948138U - Continuous conversion system - Google Patents
Continuous conversion system Download PDFInfo
- Publication number
- CN217948138U CN217948138U CN202222013015.4U CN202222013015U CN217948138U CN 217948138 U CN217948138 U CN 217948138U CN 202222013015 U CN202222013015 U CN 202222013015U CN 217948138 U CN217948138 U CN 217948138U
- Authority
- CN
- China
- Prior art keywords
- tank
- conversion
- bacterial sludge
- blender
- settling tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 112
- 230000001580 bacterial effect Effects 0.000 claims abstract description 46
- 239000010802 sludge Substances 0.000 claims abstract description 45
- 238000005192 partition Methods 0.000 claims abstract description 32
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 238000012423 maintenance Methods 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 108090000790 Enzymes Proteins 0.000 abstract description 34
- 102000004190 Enzymes Human genes 0.000 abstract description 34
- 238000010924 continuous production Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- 238000011144 upstream manufacturing Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 12
- 239000012528 membrane Substances 0.000 description 8
- 108010093096 Immobilized Enzymes Proteins 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 5
- 241000233866 Fungi Species 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 3
- LKDRXBCSQODPBY-JDJSBBGDSA-N D-allulose Chemical compound OCC1(O)OC[C@@H](O)[C@@H](O)[C@H]1O LKDRXBCSQODPBY-JDJSBBGDSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 description 1
- 229930091371 Fructose Natural products 0.000 description 1
- 239000005715 Fructose Substances 0.000 description 1
- ZGUNAGUHMKGQNY-ZETCQYMHSA-N L-alpha-phenylglycine zwitterion Chemical compound OC(=O)[C@@H](N)C1=CC=CC=C1 ZGUNAGUHMKGQNY-ZETCQYMHSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011942 biocatalyst Substances 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Landscapes
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The utility model belongs to enzyme engineering field, concretely relates to continuous conversion system, include: the device comprises a substrate tank, a bacterial sludge tank, a blender, a conversion tank, a conversion maintenance tank and a settling tank, wherein discharge ports of the substrate tank and the bacterial sludge tank are connected to a feed port of the blender through pipelines, a discharge port of the blender is connected to a feed port of the conversion tank, the conversion maintenance tank and the settling tank are sequentially connected and arranged on the upstream and the downstream, and a bacterial sludge discharge port arranged on the settling tank is connected to the feed port of the blender and/or the bacterial sludge tank through pipelines, so that the requirement of large-scale continuous production is met. By adopting the scheme, the substrate and the bacterial sludge are fully mixed in the blender before entering the conversion tank, and the annular partition plate and the multistage stirrer are arranged in the conversion tank, so that the conversion is more uniform; the conversion maintaining tank is arranged to ensure the contact time of the substrate and the enzyme and further improve the conversion rate of the enzyme; the bacterial sludge in the settling tank is returned to the blender or the bacterial sludge tank for recycling, so that the utilization rate of the enzyme is greatly improved, and the production cost is reduced.
Description
Technical Field
The utility model belongs to enzyme engineering field, concretely relates to continuous conversion system.
Background
As a biocatalyst, the enzyme has the characteristics of high specificity of catalysis, mild catalysis conditions, no pollution and the like, and continuous technical breakthrough of enzyme engineering, so that the enzyme is more and more widely applied to the aspects of industry, agriculture, medical sanitation, energy development, environmental engineering and the like. However, the traditional enzyme conversion equipment is simple in structure, the process is not innovative enough, a single-pot type conversion process is often adopted, the cost is high, the efficiency is low, and efficient continuous production cannot be realized.
The utility model discloses a utility model patent (CN 215480956U) of "a device for preparing psicose through continuous conversion fructose", the device uses the immobilized enzyme reactor to avoid the problem that free enzyme stability is poor, need low temperature to preserve, the system enzyme cycle is short, the energy consumption is great, still can be according to needs feed liquid operational aspect, production condition etc. set up immobilized enzyme reactor as one section or multisection series-wound immobilized enzyme column; meanwhile, by arranging the circulating tank, sampling detection can be carried out on the feed liquid in the circulating tank, when the components of the feed liquid in the circulating tank are unqualified, the feed liquid in the circulating tank enters the immobilized enzyme reactor again for reaction, when the components of the feed liquid in the circulating tank are qualified, the feed liquid in the circulating tank enters the next procedure through the discharge pipeline, new feed liquid enters the circulating tank through the immobilized enzyme reactor, and the operation is repeated, so that the continuous production and preparation of the allulose are realized. In the scheme, however, the substrates and the bacterial sludge are unevenly mixed when entering the enzyme reactor, the enzyme reactor is of a multi-section series structure, and a stirring device is difficult to arrange, so that the reaction rate is slow; the circulation tank is internally provided with a stirrer, but the circulation tank is easy to cause fluid turbulence in the tank, so that the activity of bacterial sludge and the production rate of enzyme are influenced, and the conversion rate of the whole reaction is influenced.
A utility model patent (CN 211255950U) named as 'a continuous production and enzyme recovery device of phenylglycine', which comprises an enzyme reactor, an enzyme separator and a product storage tank; the enzyme reactor comprises a tank body and a stirrer arranged in the tank body, wherein an enzyme adding port and a raw material inlet are formed in the top of the tank body, a reaction liquid outlet is formed in the bottom of the tank body, and the stirrer comprises a rectangular supporting frame body and spiral stirring blades arranged on two vertical frames of the rectangular supporting frame body; the enzyme separator comprises a shell, an upper cavity, a membrane tube cavity and a lower cavity which are sequentially arranged in the shell from top to bottom, wherein a partition plate is arranged in the middle of the lower cavity and divides the lower cavity into a liquid inlet cavity on the left side and a liquid outlet cavity on the right side; the ceramic membrane tube is arranged in the membrane tube cavity, the lower end of the ceramic membrane tube positioned on the left side is communicated with the liquid inlet cavity, the lower end of the ceramic membrane tube positioned on the right side is communicated with the liquid outlet cavity, the upper end of each ceramic membrane tube is communicated with the upper cavity, a product outlet is arranged on the side wall of the membrane tube cavity, and the product outlet is connected with a product storage tank through a pipeline. Although the scheme improves the utilization rate of the bacterial sludge, the separation efficiency of the bacterial sludge is greatly reduced, a large number of ceramic filtering membranes with extremely high cost are required to be used, and huge economic pressure is brought to enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model provides a continuous conversion system solves the inhomogeneous and with high costs problem of enzyme conversion process that appears in the single pot formula enzyme conversion process to can also satisfy the demand of extensive serialization production completely.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a continuous conversion system, comprising: a substrate tank, a bacterial sludge tank, a blender, a conversion tank, a conversion maintenance tank and a settling tank; the discharge ports of the substrate tank and the bacterial sludge tank are connected to the feed port of the blender through pipelines, the discharge port of the blender is connected to the feed port of the conversion tank, the conversion maintenance tank and the settling tank are sequentially connected and arranged at the upstream and downstream, and the bacterial sludge discharge port arranged on the settling tank is connected to the feed port of the blender and/or the bacterial sludge tank through pipelines.
Preferably, the feed inlet of the settling tank is arranged on one side of the bottom of the settling tank or close to the bottom of the settling tank, the product outlet is arranged at the top of the settling tank, the bottom of the settling tank is provided with a bacterial sludge discharge outlet, and the feed inlet and the bacterial sludge discharge outlet are separated by a partition plate; the bacterial sludge discharge port is also connected with a waste liquid discharge pipeline.
Preferably, the upper part of the partition plate in the settling tank inclines towards one side of the feed inlet of the settling tank to form a bacterial sludge gathering area with a large upper area and a small bottom area.
Preferably, a stirring unit is arranged at the bacterial sludge gathering area.
Preferably, the feed inlet of the conversion tank is arranged at the bottom of the conversion tank, the discharge outlet of the conversion tank is arranged at the top of the conversion tank or close to the top of the conversion tank, the inner wall of the tank body of the conversion tank is provided with an annular partition plate from top to bottom, the conversion tank is internally provided with a stirrer, and the stirrer is positioned in a vacant middle area of the annular partition plate.
Preferably, a plurality of stirring blades or stirring paddles are arranged on a stirring rod of the stirrer from top to bottom, the number of the stirring blades or stirring paddles corresponds to the number of the annular partition plate partition areas, and one stirring blade or stirring paddle is arranged in each annular partition plate partition area.
Preferably, the feed inlet of the conversion maintaining tank is arranged at the top of the conversion maintaining tank or at the position close to the top of the conversion maintaining tank, and the discharge outlet of the conversion maintaining tank is arranged at the bottom of the conversion maintaining tank.
Preferably, the discharge port of the conversion maintaining tank is respectively connected with the feed port of the settling tank, the feed port of the blender and the feed port of the conversion maintaining tank through pipelines with valves.
Preferably, the product outlet of the settling tank is provided with a filtration unit.
Preferably, the filtering unit is a filtering net or a filtering cloth, and the filtering cloth can be fixed at the product outlet of the settling tank through a bracket.
The beneficial effects of the utility model reside in that:
(1) When the continuous conversion system of the utility model is used, the substrate and the bacterial sludge are fully mixed in the blender before entering the conversion tank, so that the conversion is more uniform; the conversion maintaining tank is arranged to ensure the contact time of the substrate and the enzyme and further improve the substrate conversion rate; the bacterial sludge in the settling tank is returned to the blender or the bacterial sludge tank for recycling, so that the utilization rate of the enzyme is greatly improved, the production cost is reduced, and the requirement of large-scale continuous production is met.
(2) Set up annular baffle and multistage agitator inside the conversion jar, annular baffle separates a plurality of inner chambers with the conversion jar, can prevent that the conversion that fluid torrent/series flow lead to is inhomogeneous, cooperates the homogeneous mixing of multistage agitator to material substrate and bacterial sludge, has greatly improved conversion efficiency.
(3) The settling tank has a simple structure and an ingenious structural design, and through the cross flow formed by the upward flowing material and the downward settling enzyme catalyst and the further interception and filtration of the filtering device, the further reaction of the substrate and the enzyme catalyst is realized, the substrate conversion rate is improved, and the high-efficiency recovery of the enzyme catalyst is also realized.
Drawings
Fig. 1 is a schematic view of the present invention.
Wherein the reference numerals are: the device comprises a substrate tank 10, a bacterial sludge tank 20, a blender 30, a blender feed inlet 31, a conversion tank 40, a conversion tank feed inlet 41, a conversion tank discharge outlet 42, an annular partition plate 43, a conversion maintenance tank 50, a conversion maintenance tank feed inlet 51, a conversion maintenance tank discharge outlet 52, a settling tank 60, a settling tank feed inlet 61, a product outlet 62, a bacterial sludge discharge outlet 63, a partition plate 64, a bacterial sludge accumulation area 641, a stirring unit 65 and a filtering unit 66.
Detailed Description
The technical solution of the present invention will be further described with reference to the accompanying drawings.
A continuous conversion system comprising: a substrate tank 10, a bacterial sludge tank 20, a blender 30, a conversion tank 40, a conversion maintenance tank 50 and a settling tank 60; the discharge ports of the substrate tank 10 and the bacterial sludge tank 20 are connected to the blender feed port 31 through pipelines, the discharge port of the blender 30 is connected to the conversion tank feed port 41, the conversion tank 40, the conversion maintaining tank 50 and the settling tank 60 are sequentially connected and arranged at the upstream and downstream, and the bacterial sludge discharge port 63 arranged on the settling tank 60 is connected to the blender feed port 31 and/or the bacterial sludge tank 20 through pipelines.
Settling cask feed inlet 61 is located settling cask 60 tank bottoms one side or neighbouring tank bottom department, and the setting of result export 62 is on settling cask 60 tank deck, and settling cask 60 tank bottoms is equipped with fungus mud bin outlet 63 to separate the feed inlet with the fungus mud bin outlet with baffle 64 and open, fungus mud bin outlet 63 still is connected with waste liquid discharge pipe. The material in the settling tank 60 flows from bottom to top, the enzyme catalyst is relatively heavy and settles downwards to form cross flow with the material flowing upwards in the tank, so that the contact chance between the substrate and the enzyme is increased, and the reaction conversion rate is further improved; the settled bacterial sludge can be pumped into the blender 30 or the bacterial sludge tank 20 again through a material pump at the bottom for recycling, so that the utilization rate of the enzyme is improved. The bacterial sludge discharge port 63 is also connected with a waste liquid discharge pipeline, if the enzyme activity is poor, a material pump on the waste liquid discharge pipeline can be used for pumping the material to a plate-and-frame filter press to remove the bacterial cell residues, and the mother liquid in the material is recovered. The baffle 64 is positioned to prevent lateral flow of the incoming material from exiting the discharge opening.
The upper part of the partition plate 64 in the settling tank 60 inclines towards the side of the feed port 61 of the settling tank, and a bacterial sludge accumulation area 641 with a large upper area and a small bottom area is formed. Controlling the entering materials to flow along the inner wall of the tank body and reserving space for the settled materials. The lower side of the partition plate 64 is connected with the bottom of the settling tank 60, and the left side and the right side of the partition plate are connected with the inner wall of the side part of the settling tank 60, namely, the two sides of the surface of the partition plate 64 are in an upward opening shape, so that the transverse flow of materials entering from the feeding port 61 of the settling tank is avoided.
The bacteria mud gathering area 641 is provided with a stirring unit 65. Avoid the too big influence of fungus mud concentration speed of discharging, also further make the reaction of residual substrate complete.
The feed inlet 41 of the conversion tank is arranged at the bottom of the conversion tank 40, the discharge outlet 42 of the conversion tank is arranged at the top of the conversion tank 40 or the position close to the top of the conversion tank, an annular partition plate 43 is arranged in the conversion tank 40 from top to bottom, and stirring blades or stirring paddles are arranged in the upper area and the lower area of the annular partition plate 43. The annular baffles 43 divide the cavity of the conversion tank 40 into several sections, which properly reduce the flow rate of the fluid, prevent the fluid from turbulent flow and increase the reaction uniformity. The annular partition plates 43 are arranged from top to bottom in 2-5 numbers, the multistage stirrers are arranged in the conversion tank 40 and are located in the middle vacant areas of the annular partition plates 43, the number of the stirring paddles/stirring blades of the multistage stirrers is matched with the number of the partition areas of the annular partition plates, and one stirring blade or one stirring paddle is arranged in each partition area of the annular partition plates 43.
The feed inlet 51 of the conversion maintaining tank is arranged at the top of the conversion maintaining tank 50 or at the position close to the top of the conversion maintaining tank, and the discharge outlet 52 of the conversion maintaining tank is arranged at the bottom of the conversion maintaining tank 50. The discharge port 52 of the conversion maintaining tank is respectively connected with the feed port 61 of the settling tank, the feed port 31 of the blender and the feed port 51 of the conversion maintaining tank through pipelines with valves. There are several options for the flow of material in the conversion maintenance tank 50: one is to enter the downstream settling tank 60, the second is to return to the mixer 30, and the third is to re-enter the conversion maintenance tank 50 to further increase the contact time of the substrate and the enzyme and improve the conversion rate.
A filtration unit 66 is disposed adjacent to the settling tank product outlet 62; the filtering unit 66 is a filter net or a filter cloth. The carried bacterial sludge is filtered, so that the utilization rate or recovery rate of the enzyme can be improved, the product can be primarily purified, and the pressure of subsequent purification treatment is reduced.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (10)
1. A continuous conversion system, characterized by: the method comprises the following steps: a substrate tank (10), a bacterial sludge tank (20), a blender (30), a conversion tank (40), a conversion maintenance tank (50) and a settling tank (60); the discharge ports of the substrate tank (10) and the bacterial sludge tank (20) are connected to a blender feed port (31) through pipelines, the discharge port of the blender (30) is connected to a conversion tank feed port (41), the conversion tank (40), the conversion maintaining tank (50) and the settling tank (60) are sequentially connected and arranged in an up-and-down stream mode, and a bacterial sludge discharge port (63) arranged on the settling tank (60) is connected to the blender feed port (31) and/or the bacterial sludge tank (20) through pipelines.
2. The continuous conversion system of claim 1, wherein: the feed inlet (61) of the settling tank is arranged on one side of the bottom of the settling tank (60) or close to the bottom of the settling tank, the product outlet (62) is arranged at the top of the settling tank (60), the bottom of the settling tank (60) is provided with a bacterial sludge discharge port (63), and the feed inlet (61) of the settling tank and the bacterial sludge discharge port (63) are separated by a partition plate (64); the bacterial sludge discharge port (63) is also connected with a waste liquid discharge pipeline.
3. The continuous conversion system of claim 2, wherein: the upper part of a partition plate (64) in the settling tank (60) inclines towards one side of a feed inlet (61) of the settling tank to form a bacterial sludge gathering area (641) with a large upper area and a small bottom area.
4. The continuous conversion system of claim 3, wherein: and a stirring unit (65) is arranged at the bacterial sludge gathering area (641).
5. The continuous conversion system of claim 1, wherein: the conversion tank feed inlet (41) is arranged at the bottom of the conversion tank (40) and at the tank top of the conversion tank (40) or at the position close to the tank top, the inner wall of the conversion tank (40) is provided with an annular partition plate (43) from top to bottom, the inside of the conversion tank (40) is provided with a stirrer, and the stirrer is positioned in the middle of the annular partition plate (43) and is vacant.
6. The continuous conversion system of claim 5, wherein: a plurality of stirring blades or stirring paddles are arranged on a stirring rod of the stirrer from top to bottom, the number of the stirring blades or the stirring paddles corresponds to the number of the partition areas of the annular partition plates (43), and one stirring blade or stirring paddle is arranged in each partition area of the annular partition plates (43).
7. The continuous conversion system of claim 2, wherein: the feed inlet (51) of the conversion maintaining tank is arranged at the top of the conversion maintaining tank (50) or at the position close to the top of the conversion maintaining tank, and the discharge outlet (52) of the conversion maintaining tank is arranged at the bottom of the conversion maintaining tank (50).
8. The continuous conversion system of claim 7, wherein: the discharge port (52) of the conversion maintaining tank is respectively connected with the feed port (61) of the settling tank, the feed port (31) of the blender and the feed port (51) of the conversion maintaining tank through pipelines with valves.
9. The continuous conversion system of claim 2, wherein: a filtering unit (66) is arranged at the product outlet (62) of the settling tank (60).
10. The continuous conversion system of claim 9, wherein: the filtering unit (66) is a filtering net or a filtering cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222013015.4U CN217948138U (en) | 2022-08-01 | 2022-08-01 | Continuous conversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222013015.4U CN217948138U (en) | 2022-08-01 | 2022-08-01 | Continuous conversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217948138U true CN217948138U (en) | 2022-12-02 |
Family
ID=84227357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222013015.4U Active CN217948138U (en) | 2022-08-01 | 2022-08-01 | Continuous conversion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217948138U (en) |
-
2022
- 2022-08-01 CN CN202222013015.4U patent/CN217948138U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202297249U (en) | Internal circulating fluidized bed bioreactor | |
| CN110526395B (en) | Rotational flow anaerobic reactor for wastewater treatment system | |
| CN202643385U (en) | Treatment device for electrolyzation catalytic oxidation wastewater | |
| CN110172401B (en) | Circulating biological enzyme catalysis reaction system | |
| CN209522646U (en) | A kind of bio-contact oxidation High-rate sedimentation integration facility | |
| CN107384753B (en) | High-efficiency anaerobic fermentation dynamic membrane bioreactor | |
| CN217948138U (en) | Continuous conversion system | |
| CN201529494U (en) | Submerged Flat Panel Membrane Module | |
| CN108689475A (en) | Fenton oxidation baffled reactor and method for processing organic wastewater | |
| CN217051775U (en) | A split type AnMBR sewage treatment system | |
| CN217437950U (en) | Membrane coupling electrocatalytic oxidation device | |
| CN213623724U (en) | Food wastewater treatment system | |
| CN211255950U (en) | Continuous production and enzyme recovery device of phenylglycine | |
| CN210993892U (en) | A agitating unit for instant agar production | |
| CN222042870U (en) | Upflow anaerobic and sludge thickening reaction tower | |
| CN208667394U (en) | A kind of low energy consumption anaerobic membrane biological reaction system | |
| CN101024545B (en) | Alcohol tank liquid-screen filtering purifying apparatus | |
| CN207445669U (en) | A kind of ultrasound decoloration device | |
| CN220788220U (en) | Quick-assembly reinforced efficient cross ring coagulation reaction device | |
| CN217724681U (en) | Multistage sedimentation tank is used in processing of activated clay | |
| CN218910203U (en) | Beta-arbutin fermentation liquor decoloration device | |
| CN221440543U (en) | Oil field sewage treatment device based on electric flocculation coupling | |
| CN220657223U (en) | Polyaluminium chloride reaction kettle | |
| CN213652006U (en) | Novel biological anaerobic reactor of integration | |
| CN218174749U (en) | Anaerobic reaction equipment and reaction system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |