CN220245685U - Wastewater circulation system for construction - Google Patents
Wastewater circulation system for construction Download PDFInfo
- Publication number
- CN220245685U CN220245685U CN202321742336.6U CN202321742336U CN220245685U CN 220245685 U CN220245685 U CN 220245685U CN 202321742336 U CN202321742336 U CN 202321742336U CN 220245685 U CN220245685 U CN 220245685U
- Authority
- CN
- China
- Prior art keywords
- sedimentation tank
- tank
- water
- sprayer
- wall
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 34
- 239000002351 wastewater Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 238000004062 sedimentation Methods 0.000 claims abstract description 108
- 239000007921 spray Substances 0.000 claims abstract description 24
- 238000012423 maintenance Methods 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 15
- 230000008929 regeneration Effects 0.000 claims abstract description 15
- 238000011069 regeneration method Methods 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 4
- 238000000889 atomisation Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 5
- 238000000034 method Methods 0.000 abstract description 6
- 239000010865 sewage Substances 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 description 9
- 238000004064 recycling Methods 0.000 description 9
- 238000005345 coagulation Methods 0.000 description 5
- 230000015271 coagulation Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 208000036828 Device occlusion Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Abstract
The utility model discloses a wastewater circulating system for construction, which comprises an inlet and outlet vehicle sprayer, a wall dedusting sprayer, an enrichment sedimentation tank, a recovery channel, a water collecting sedimentation tank, a regeneration water tank, a permeable membrane, a water supply pump and a maintenance spray head, wherein the inlet and outlet vehicle sprayer and the wall dedusting sprayer are connected into a closed graph under a overlooking angle, the enrichment sedimentation tank is arranged at the bottom surface of the inlet and outlet vehicle sprayer, the recovery channel is arranged along the inner side of an outer wall of a construction site, the recovery channel is connected with the water collecting sedimentation tank through the permeable membrane, the water collecting sedimentation tank is connected with the regeneration water tank, the two water pumps are respectively connected with the water collecting sedimentation tank and the regeneration water tank, the maintenance spray head and the inlet and outlet vehicle sprayer are connected with the water supply pump, and the wall dedusting sprayer is arranged in a concrete maintenance area. The system has simple structure and easy usability; design according to the characteristics of sewage source and water scene, reduced the extra program burden of in-process, make hydrologic cycle according to efficiency.
Description
Technical Field
The utility model relates to the field of wastewater treatment and reclaimed water recycling, in particular to a wastewater circulation system for construction.
Background
Water is a limited resource, china is a country where water is deficient, and the distribution of the water resources is seriously uneven, and researches show that in 669 cities in China, more than 400 cities are deficient in water supply, 110 cities are severely deficient in water, and 30 extra large cities with 32 million populations are chronically afflicted by water deficiency. The water saving of major water projects is an important part of daily production, however, for water saving problems, industries often focus on high water industries with chemical pollution properties such as electric power, steel, colored, petrochemical, chemical industry, papermaking, textile printing and dyeing, food processing, machinery, electronics and the like, and meanwhile, as construction of the high water projects, the lack of the problem of not having chemical pollution is less of a concern. At present, tap water is usually adopted for dust fall on construction sites, vehicle flushing and concrete maintenance, and the tap water is a huge waste of water resources.
The prior patent document with publication number of CN201826321U discloses an engineering precipitation recycling system, which comprises a flow on-line control feedback system, a turbidity on-line detection feedback system, a salt and other pollutant on-line detection feedback system, a water treatment system, an engineering precipitation recycling pipe network and the like. The engineering precipitation recycling system can collect engineering precipitation, increase the recycling efficiency of engineering precipitation, realize small emission of engineering precipitation, increase the available water resource for areas with relatively deficient water resources, relieve the water shortage condition, increase the economic benefit of construction enterprises and reduce the water supply pressure of water works. However, the method still needs to perform preliminary treatments of coagulation, precipitation and filtration, but due to the characteristics of a construction site, only simple solid sediment is actually mixed with water in the dust removal and vehicle washing, the complex degree and the cost of circulating water are increased substantially by adding a coagulation procedure, and the problem of wastewater regeneration in maintenance cannot be solved by adding a coagulation step.
There is a need for a wastewater recycling system for construction that solves the above problems.
Disclosure of Invention
The utility model aims to solve the problems that in the prior art, the dust fall of a construction site, the flushing of a vehicle and the maintenance of concrete usually adopt tap water, which are huge waste of water resources, and the prior engineering dewatering recycling system still needs to carry out preliminary treatment of coagulation, precipitation and filtration, but because of the characteristics of the construction site, the dust removal and the flushing of the vehicle are only simple solid sediment and water actually, and the coagulation procedure is increased to substantially increase the complexity and cost of circulating water.
The utility model provides a wastewater circulation system for construction, which comprises an inlet and outlet vehicle sprayer, a wall dedusting sprayer, an enrichment sedimentation tank, a recovery canal, a water collecting sedimentation tank, a regeneration water tank, a permeable membrane, three water supply pumps and a maintenance spray head, wherein the inlet and outlet vehicle sprayer is arranged at the inlet and outlet positions of a construction site, the wall dedusting sprayer is arranged at the outer wall of the construction site, the working area of the inlet and outlet vehicle sprayer and the working area of the wall dedusting sprayer are connected to form a closed figure under a overlooking angle, the enrichment sedimentation tank is arranged at the bottom surface position of the inlet and outlet vehicle sprayer, the recovery canal is arranged along the inner side of the outer wall of the construction site, the recovery canal is connected with the water collecting sedimentation tank through the permeable membrane, the water collecting sedimentation tank is connected with the regeneration water tank, the inlet ends of the two water supply pumps are connected with the water collecting sedimentation tank, the inlet ends of the other water supply pumps are respectively connected with the two water supply pumps connected with the water collecting sedimentation tank, the inlet ends of the wall dedusting sprayer are connected with the water supply pumps connected with the regeneration water tank, the maintenance spray head is arranged at the concrete area, the vehicle sprayer is in a direct portal structure, the wall dedusting sprayer is in a spray pipe, and the water can be a movable spray pipe.
The closed graph under the depression angle ensures that dust removal spraying can cover the boundary of a construction area, and the problem that dust is difficult to control outside the construction area due to the fact that the dust enters the outside of the construction area on a large scale is avoided. The inlet and outlet vehicle sprayer is a device for removing dust and dirt on the surface of construction vehicles such as transport trucks.
The utility model relates to a wastewater circulating system for construction, which is characterized in that an enrichment sedimentation tank comprises a travelling bottom plate, two primary sedimentation tanks, a secondary sedimentation tank and a water collecting tank, wherein the travelling bottom plate is the same as the ground in height, the travelling bottom plate is communicated with the ground in the passing direction of an inlet and an outlet, a gap is arranged between the two sides of the travelling bottom plate in the travelling direction and the ground, the primary sedimentation tank is arranged below the two gaps, the primary sedimentation tank is an inverted secondary step tank, the upper Fang Jie step tank of the primary sedimentation tank is a large-width step tank, the lower Fang Jie step tank of the primary sedimentation tank is a small-width step tank, the deepest position of the primary sedimentation tank and the edges of the two sides of the travelling bottom plate in the travelling direction are arranged at the same vertical projection position, the edges of the large-diameter step tank of the two primary sedimentation tanks are smaller than the edges of the travelling bottom plate in the vertical projection, the secondary sedimentation tank is arranged below the two primary sedimentation tanks, the width of the secondary sedimentation tank is larger than the distance between the edges of the large-diameter step tank of the two primary sedimentation tanks in the vertical projection of the bottom plate, the water collecting tank is arranged below the secondary sedimentation tank, the water collecting tank is connected with the secondary sedimentation tank, and the water collecting tank is communicated with the water collecting tank and is co-symmetrically arranged.
According to the wastewater circulating system for construction, as an optimal mode, the bottom surfaces of two positions corresponding to the secondary sedimentation tank and the primary sedimentation tank are provided with the sand storage grooves.
According to the wastewater circulating system for construction, as a preferable mode, the water collecting sedimentation tank comprises a sedimentation tank, a redeposition tank and a reclaimed water tank, the sedimentation Chi Dingduan is communicated with an outlet of the enrichment sedimentation tank and an outlet of the recovery channel, the upper side wall of the redeposition tank is communicated with the upper side wall of the sedimentation tank, the middle side wall of the redeposition tank is communicated with the upper side wall of the reclaimed water tank, the lower side wall of the reclaimed water tank is provided with a permeable membrane, and the reclaimed water tank is communicated with the reclaimed water tank through the permeable membrane.
The three conditions of maintenance, dust removal and vehicle cleaning are respectively any water source, a sand-free and corrosion-free water source and a corrosion-free water source, so that the maintenance and vehicle cleaning water does not need fine filtration, dust removal spraying is atomization spraying, and the sand and stone can cause device blockage.
After the use process, corresponding water quality of maintenance, dust removal and vehicle cleaning is respectively corrosive, mortar and slurry, so that the maintenance wastewater does not enter a simple circulation system, and the water of dust removal and vehicle cleaning can enter water circulation through precipitation and separation.
The utility model has the following beneficial effects:
(1) The system has simple structure and is easier to use than a complex pipeline system;
(2) The system is designed according to the characteristics of a sewage source and a water scene, so that extra program load in the process is reduced, and the water circulation is according to the efficiency;
(3) The system has simple structure, and can add corresponding modularized structures according to the use scene.
Drawings
FIG. 1 is a schematic view of a construction wastewater circulation system;
FIG. 2 is a schematic diagram of an enrichment sedimentation tank of a wastewater recycling system for construction;
FIG. 3 is a schematic diagram of a wastewater recycling system water collection sedimentation tank for construction.
Reference numerals:
1. inlet and outlet vehicle sprayers; 2. wall dust removal sprayer; 3. an enrichment sedimentation tank; 31. a travelling crane bottom plate; 32. a first-stage sedimentation tank; 33. a secondary sedimentation tank; 34. a water collecting tank; 4. a recovery canal; 5. a water collecting sedimentation tank; 51. a sedimentation tank; 52. a re-sedimentation tank; 53. a middle water pool; 6. a regeneration water tank; 7. penetrating the membrane; 8. a water feed pump; 9. and (5) maintaining the spray head.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Example 1
As shown in figure 1, the wastewater circulation system for construction comprises an inlet and outlet vehicle sprayer 1, a wall dedusting sprayer 2, an enrichment sedimentation tank 3, a recovery canal 4, a water collecting sedimentation tank 5, a regeneration water tank 6, a permeable membrane 7, three water feeding pumps 8 and maintenance spray heads 9, wherein the inlet and outlet vehicle sprayer 1 is arranged at an inlet and outlet position of a construction site, the wall dedusting sprayer 2 is arranged at an outer wall of the construction site, a working area of the inlet and outlet vehicle sprayer 1 and a working area of the wall dedusting sprayer 2 are connected into a closed graph under a overlooking angle, the enrichment sedimentation tank 3 is arranged at the bottom surface position of the inlet and outlet vehicle sprayer 1, the recovery canal 4 is arranged along the inner side of the outer wall of the construction site, the recovery canal 4 is connected with a water collecting sedimentation tank 5 through a pipeline, the water collecting sedimentation tank 5 is connected with a regeneration water tank 6 through a permeable membrane 7, the inlet ends of two water supply pumps 8 are connected with the water collecting sedimentation tank 5, the inlet ends of the other water supply pumps 8 are connected with the regeneration water tank 6, a maintenance spray head 9 and an inlet and outlet vehicle sprayer 1 are respectively connected with the outlet ends of the water supply pumps 8 connected with the water collecting sedimentation tank 5, the inlet ends of a wall dedusting sprayer 2 are connected with the water supply pumps 8 connected with the regeneration water tank 6, the maintenance spray head 9 is arranged in a concrete maintenance area, the inlet and outlet vehicle sprayer 1 is of a portal water spraying structure for directly spraying water, the wall dedusting sprayer 2 is an atomization spray device, and the maintenance spray head 9 is a movable direct water supply pipe spray head.
As shown in fig. 2, the enrichment sedimentation tank 3 comprises a travelling bottom plate 31, two primary sedimentation tanks 32, a secondary sedimentation tank 33 and a water collecting tank 34, wherein the height of the travelling bottom plate 31 is the same as that of the ground, the travelling bottom plate 31 is communicated with the ground in the passing direction of an inlet and an outlet, gaps are formed between two sides of the travelling bottom plate 31 in the travelling direction, the primary sedimentation tank 32 is arranged below the gaps, the primary sedimentation tank 32 is an inverted secondary sedimentation tank, the Fang Jie sedimentation tank on the primary sedimentation tank 32 is a large-width sedimentation tank, the Fang Jie sedimentation tank under the primary sedimentation tank 32 is a small-width sedimentation tank, the deepest position of the primary sedimentation tank 32 and the edges of the two sides of the travelling bottom plate 31 in the travelling direction are arranged at the same vertical projection position, the edges of the large-diameter sedimentation tank 32 on the inner side of the travelling bottom plate 31 are smaller than the edges of the vertical projection of the travelling bottom plate 31, the secondary sedimentation tank 33 is arranged below the primary sedimentation tank 32, the width of the secondary sedimentation tank 33 is larger than the distance between the edges of the large-diameter sedimentation tank 32 on the vertical inner sides of the bottom plate 31, the secondary sedimentation tank 33 is arranged below the secondary sedimentation tank 33, the secondary sedimentation tank 33 is connected with the water collecting tank 34 and the water collecting tank 34 is connected with the water collecting tank 34 in a symmetric mode, and the water collecting tank 34 is connected with the water collecting tank 34, and the secondary sedimentation tank 34 is connected with the water collecting tank 34.
Optionally, sand storage grooves are formed in the bottoms of two positions of the secondary sedimentation tank 33 corresponding to the primary sedimentation tank 32.
As shown in fig. 3, the water collecting sedimentation tank 5 comprises a sedimentation tank 51, a redeposition tank 52 and a reclaimed water tank 53, the top end of the sedimentation tank 51 is communicated with the outlet of the enrichment sedimentation tank 3 and the outlet of the recovery canal 4, the upper side wall of the redeposition tank 52 is communicated with the upper side wall of the sedimentation tank 51, the middle side wall of the redeposition tank 52 is communicated with the upper side wall of the reclaimed water tank 53, the lower side wall of the reclaimed water tank 53 is provided with a permeable membrane 7, and the reclaimed water tank 6 is communicated with the reclaimed water tank 53 through the permeable membrane 7.
The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or modified within the scope of the present utility model.
Claims (4)
1. A wastewater circulation system for construction is characterized in that: including import and export vehicle spray thrower (1), wall body dust removal spray thrower (2), enrichment sedimentation tank (3), recovery canal (4), collection sedimentation tank (5), regeneration pond (6), membrane (7), three feed pump (8) and maintenance shower nozzle (9) are thoroughly mixed, import and export vehicle spray thrower (1) set up in building site import and export position, wall body dust removal spray thrower (2) set up in building site outer wall, import and export vehicle spray thrower (1)'s working area and wall body dust removal spray thrower (2) working area connect into the top down seal figure, enrichment sedimentation tank (3) set up import and export vehicle spray thrower (1) bottom surface position, recovery canal (4) are followed building site outer wall inboard sets up, recovery canal (4) with collection sedimentation tank (5) pipe connection, collection sedimentation tank (5) are through membrane (7) connection regeneration pond (6), two collection sedimentation tank (5) are connected to water pump (8) entrance end, and the other water pump (8) entrance and exit (6) the maintenance shower nozzle (5) are connected respectively in the water pump (8) entrance and exit (6) the water pump (5), the inlet end of the wall dedusting sprayer (2) is connected with the water supply pump (8) of the regeneration water tank (6), the curing spray head (9) is arranged in a concrete curing area, the inlet and outlet vehicle sprayer (1) is of a portal water spraying structure for directly spraying water, the wall dedusting sprayer (2) is an atomization spray device, and the curing spray head (9) is a movable direct water supply pipe spray head.
2. A construction wastewater circulation system according to claim 1, wherein: the enrichment sedimentation tank (3) comprises a traveling bottom plate (31), two primary sedimentation tanks (32), a secondary sedimentation tank (33) and a water collecting tank (34), wherein the traveling bottom plate (31) is the same as the ground in height, the traveling bottom plate (31) is communicated with the ground in the inlet and outlet traveling direction, the traveling bottom plate (31) is provided with a gap between two sides of the traveling direction and the ground, the primary sedimentation tank (32) is arranged below the gap, the primary sedimentation tank (32) is an inverted secondary stepped tank, the Fang Jie stepped tank on the primary sedimentation tank (32) is a large-width stepped tank, the Fang Jie stepped tank under the primary sedimentation tank (32) is a small-width stepped tank, the deepest position of the primary sedimentation tank (32) and the edges of two sides of the traveling bottom plate (31) are arranged at the same vertical projection position, the two primary sedimentation tanks (32) are positioned at the inner sides of the vertical projection of the bottom plate (31) and are smaller than the sides of the vertical projection of the traveling bottom plate (31), the secondary sedimentation tank (32) is positioned at the two sides of the large-width stepped tank (33), the connecting width of the water collecting tank (34) is larger than that of the secondary sedimentation tank (33), the water collecting tank (34) and the secondary sedimentation tank (33) are in a common symmetry line, and the water collecting tank (34) is communicated with the water collecting sedimentation tank (5).
3. A construction wastewater circulation system according to claim 2, wherein: the bottom surfaces of the two positions of the secondary sedimentation tank (33) corresponding to the primary sedimentation tank (32) are provided with sand storage tanks.
4. A construction wastewater circulation system according to claim 1, wherein: the water collecting sedimentation tank (5) comprises a sedimentation tank (51), a re-sedimentation tank (52) and a reclaimed water tank (53), wherein the top end of the sedimentation tank (51) is communicated with an outlet of the enrichment sedimentation tank (3) and an outlet of the recovery canal (4), the upper side wall of the re-sedimentation tank (52) is communicated with the upper side wall of the sedimentation tank (51), the middle side wall of the re-sedimentation tank (52) is communicated with the upper side wall of the reclaimed water tank (53), the lower side wall of the reclaimed water tank (53) is provided with a permeable membrane (7), and the reclaimed water tank (6) is communicated with the reclaimed water tank (53) through the permeable membrane (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321742336.6U CN220245685U (en) | 2023-07-05 | 2023-07-05 | Wastewater circulation system for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321742336.6U CN220245685U (en) | 2023-07-05 | 2023-07-05 | Wastewater circulation system for construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220245685U true CN220245685U (en) | 2023-12-26 |
Family
ID=89270897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321742336.6U Active CN220245685U (en) | 2023-07-05 | 2023-07-05 | Wastewater circulation system for construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220245685U (en) |
-
2023
- 2023-07-05 CN CN202321742336.6U patent/CN220245685U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207877471U (en) | A kind of self-service carwash and wastewater from car washer processing and reclaiming system | |
| CN109824186A (en) | Minerals sand, which is promoted, by negative pressure recycles high speed pellets pool process | |
| CN204469524U (en) | A kind of tower exhaust gas contact cleaning equipment | |
| CN201330204Y (en) | Device for water conservation as well as pollutant and consumption reduction applied in the coating pre-treatment parkerizing process | |
| CN202576152U (en) | Hollow spray column type flue gas desulfurization wastewater concentration device | |
| CN204996189U (en) | Other system of straining of integrated multi -ported valve circulating water | |
| CN220245685U (en) | Wastewater circulation system for construction | |
| CN208071469U (en) | A kind of trucd mixer cleaning sewage recovering system | |
| CN112321029A (en) | Continuous casting turbid circulating water treatment system and process | |
| CN103395872B (en) | Low hydraulic head hydropower coagulation process method | |
| CN213950844U (en) | Turbid circulating water treatment system for continuous casting | |
| CN103395871B (en) | L-shaped hydropower hybrid spiral flow generator | |
| CN212998578U (en) | Novel glass fiber reinforced plastic tank for stone recycling water advanced treatment | |
| CN203392907U (en) | L-type hydraulic mixing spiral flow generator | |
| CN208378609U (en) | A kind of container-type water treatment equipment | |
| CN209776395U (en) | Energy-saving flat plate type automatic flushing platform for urban ecological environment treatment | |
| CN213100945U (en) | Modular sedimentation tank for treating bottom mud in rivers, lakes and reservoirs | |
| CN109867379A (en) | A kind of mixer truck cleaning sewage recovering system | |
| CN208500611U (en) | A kind of wastewater of construction electric flocculation processing system | |
| CN216629769U (en) | Modularized workshop for separating and recovering fine sand from bottom mud in rivers, lakes and reservoirs | |
| CN112426886A (en) | Low-consumption high-efficiency flat ceramic membrane microfiltration system based on gas-liquid two-phase flow | |
| CN105080188A (en) | Installation method for sewage treatment sand filter pool system | |
| CN103755063B (en) | Water treatment system and water treatment process | |
| CN216986721U (en) | Water saving system for turbine washing machine and turbine washing machine | |
| CN1765776A (en) | Electrolytic aluminium factory production waste water disposal method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |