CN107321036A - Solution purification system - Google Patents
Solution purification system Download PDFInfo
- Publication number
- CN107321036A CN107321036A CN201710490990.5A CN201710490990A CN107321036A CN 107321036 A CN107321036 A CN 107321036A CN 201710490990 A CN201710490990 A CN 201710490990A CN 107321036 A CN107321036 A CN 107321036A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- input
- alkali lye
- automatic valve
- output end
- 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.)
- Pending
Links
- 238000000746 purification Methods 0.000 title claims abstract description 15
- 239000003513 alkali Substances 0.000 claims abstract description 90
- 238000004140 cleaning Methods 0.000 claims abstract description 25
- 239000004094 surface-active agent Substances 0.000 claims abstract description 16
- 238000005554 pickling Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000006210 lotion Substances 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000008021 deposition Effects 0.000 abstract description 4
- 238000011001 backwashing Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 235000021110 pickles Nutrition 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005237 degreasing agent Methods 0.000 description 1
- 239000013527 degreasing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The present invention relates to a kind of solution purification system, including alkali lye filter, washwater tank, pickling flow container, alkali cleaning flow container, surfactant tank and solution feed pump；The input of first pipeline is connected to alkali lye circulation pot bottom or pretreatment unit；The input of second pipe is connected to washwater tank；The input of 3rd pipeline is connected to pickling flow container；The input of 4th pipeline is connected to alkali cleaning flow container；The input of 5th pipeline is connected to surfactant tank；The input of 6th pipeline is connected to the outlet of solution feed pump, and output end is connected with the bottom of alkali lye filter；The input of 7th pipeline is connected with the top of alkali lye filter, and output is connected to alkali lye circulating tank；The input of 8th pipeline is connected with the outlet of solution feed pump；The input of 9th pipeline is connected with the bottom of alkali lye filter；The output of tenth pipeline is connected to alkali wash water tank.The present invention has automatic fitration and anti-cleaning function, can effectively remove the greasy filth in alkali lye, greatly reduce deposition of the greasy filth in alkali lye circulating tank.
Description
Technical field
The present invention relates to liquid filtration art, more specifically to a kind of solution purification system.
Background technology
Cold-strip steel in the rear process before processing such as annealing, coating, need to use alkali lye to the grease of the belt steel surface after rolling,
The impurity such as iron powder and the dust of adhesion is cleaned, and alkali lye is recycled between online alkaline bath and alkali lye circulating tank,
With the progress of unit continuous wash, the solid impurity on strip constantly enters in alkali lye and built up, these solids
Impurity is mainly iron powder and the oily greasy filth to be formed that adheres to each other.In order to maintain the normal operation of tandem mill, it will usually periodically
A certain amount of failure alkali lye is discharged, a certain amount of fresh alkali lye is supplemented, to reduce the greasy filth content in alkali lye, so as to protect
Hold the cleansing power of alkali lye.Even so, not being avoided that greasy filth particle is blocked in wire casing caustic dip nozzle, pipeline and changed still
Hot device, when serious can also recontamination strip, production a period of time after, still have a large amount of sludge depositions at the bottom of alkali lye circulating tank
Portion, very big inconvenience is carried out to cleaning tape.Meanwhile, the alkali lye of discharge can not recycling, cause the waste of degreasing agent.
The content of the invention
The technical problem to be solved in the present invention is that there is provided a kind of solution purification with automatic fitration and anti-cleaning function
System, can effectively remove the greasy filth in alkali lye, greatly reduce deposition of the greasy filth in alkali lye circulating tank.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of solution purification system, including alkali lye
Filter, washwater tank, pickling flow container, alkali cleaning flow container, surfactant tank and solution feed pump；The input of first pipeline is connected to alkali
Liquid circulates pot bottom or pretreatment unit, and output end is connected with the entrance of solution feed pump, and the first pipeline is provided with the first automatic valve；The
The input of two pipelines is connected to washwater tank, and output end is connected with the output end of the first pipeline, and second pipe is provided with second certainly
Dynamic valve；The input of 3rd pipeline is connected to pickling flow container, and output end is connected with the output end of the first pipeline, and the 3rd pipeline is provided with
3rd automatic valve；The input of 4th pipeline is connected to alkali cleaning flow container, and output end is connected with the output end of the first pipeline, the 4th pipeline
It is provided with the 4th automatic valve；The input of 5th pipeline is connected to surfactant tank, output end and the output end phase of the first pipeline
Even, the 5th pipeline is provided with the 5th automatic valve；The input of 6th pipeline is connected to the outlet of solution feed pump, and output end is filtered with alkali lye
The bottom of device is connected, and the 6th deferent is provided with the 6th automatic valve；The input of 7th pipeline is connected with the top of alkali lye filter,
Output is connected to alkali lye circulating tank, and the 7th pipeline is provided with the 7th automatic valve；The outlet of the input and solution feed pump of 8th pipeline
It is connected, output end is connected with the top of alkali lye filter, the 8th pipeline is provided with the 8th automatic valve；The input of 9th pipeline with
The bottom of alkali lye filter is connected, and output is connected to pickle tank, and the 9th pipeline is provided with the 9th automatic valve；Tenth pipeline it is defeated
Enter end with the input of the 9th pipeline to be connected, output is connected to alkali wash water tank, the tenth pipeline is provided with the tenth automatic valve；11st
The input of pipeline is connected with the input of the 9th pipeline, and output is connected to surfactant tank, and the 11st pipeline is provided with the
11 automatic valves；The input of 12nd pipeline is connected with the bottom of alkali lye filter, and the 12nd pipeline is provided with the 12nd certainly
Dynamic valve.
In such scheme, differential pressure controller is provided between the top and bottom of the alkali lye filter.
In such scheme, the output of the 12nd pipeline is connected to cesspit.
Implement the solution purification system of the present invention, have the advantages that：
1st, present system has automatic fitration and anti-cleaning function, can effectively remove the greasy filth in alkali lye, subtract significantly
Few deposition of the greasy filth in alkali lye circulating tank, extends the use time of alkali lye, therefore can reduce production cost and saving
Human cost, while decreasing wastewater treatment capacity.
2nd, can be using sour cleaning-alkali cleaning-surfactant washing when alkali lye filter cleans not thorough with water
Chemical method recovers filter capacity completely；
3rd, the filter operation of solution purification system and anti-cleaning operation share a pump, make system operatio simple, also reduce
The total cost of system；
4th, the filtering of alkali lye and the anti-cleaning of alkali lye filter are carried out automatically, and automaticity is high, can save manpower
Cost.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the operation principle schematic diagram of solution purification system first embodiment of the present invention.
Fig. 2 is the operation principle schematic diagram of solution purification system second embodiment of the present invention.
In figure：1. alkali lye filter；2. washwater tank；3. pickling flow container；4. alkali cleaning flow container；5. surfactant tank；6.
Alkali lye circulating tank；7. solution feed pump；8. the first pipeline；9. the first automatic valve；10. second pipe；11. the second automatic valve；12. the 3rd
Pipeline；13. the 3rd automatic valve；14. the 4th pipeline；15. the 4th automatic valve；16. the 5th pipeline；17. the 5th automatic valve；18. the
Six pipelines；19. the 6th automatic valve；20. the 7th pipeline；21. the 7th automatic valve；22. the 8th pipeline；23. the 8th automatic valve；24.
Differential pressure controller；25. the 9th pipeline；26. the 9th automatic valve；27. the tenth pipeline；28. the tenth automatic valve；29. the 11st pipeline；
30. the 11st automatic valve；31. the 12nd pipeline；32. the 12nd automatic valve；33. cesspit；34. pretreatment unit.
Embodiment
In order to which technical characteristic, purpose and effect to the present invention are more clearly understood from, now compare accompanying drawing and describe in detail
The embodiment of the present invention.
As shown in Figure 1 and Figure 2, solution purification system of the present invention include alkali lye filter 1, washwater tank 2, pickling flow container 3,
Alkali cleaning flow container 4, surfactant tank 5, solution feed pump 6 and differential pressure controller 24.
The input of first pipeline 8 is connected to the bottom of alkali lye circulating tank 6 or pretreatment unit 34, output end and solution feed pump 7
Entrance is connected, and the first pipeline 8 is provided with the first automatic valve 9.Pretreatment unit 34 can be with will be compared with small particle and larger grain in alkali lye
The greasy filth particle separation in footpath, the alkali lye of the greasy filth containing little particle enters the first pipeline 8.
The input of second pipe 10 is connected to washwater tank 2, and output end is connected with the output end of the first pipeline 8, the second pipe
Road 10 is provided with the second automatic valve 11；The input of 3rd pipeline 12 is connected to pickling flow container 3, and output end is defeated with the first pipeline 8
Go out end to be connected, the 3rd pipeline 12 is provided with the 3rd automatic valve 13；The input of 4th pipeline 14 is connected to alkali cleaning flow container 4, output end
It is connected with the output end of the first pipeline 8, the 4th pipeline 14 is provided with the 4th automatic valve 15；The input of 5th pipeline 16 is connected to table
Face activating agent tank 5, output end is connected with the output end of the first pipeline 8, and the 5th pipeline 16 is provided with the 5th automatic valve 17；6th pipe
The input in road 18 is connected to the outlet of solution feed pump 7, and output end is connected with the bottom of alkali lye filter 1, and the 6th pipeline 18 is provided with
6th automatic valve 19；The input of 7th pipeline 20 is connected with the top of alkali lye filter 2, and output is connected to alkali lye circulating tank 6,
7th pipeline 20 is provided with the 7th automatic valve 21；The input of 8th pipeline 22 is connected with the outlet of solution feed pump 7, output end and alkali
The top of liquid filter 1 is connected, and the 8th pipeline 22 is provided with the 8th automatic valve 23；Between the top and bottom of alkali lye filter 1
Provided with differential pressure controller 24；The input of 9th pipeline 25 is connected with the bottom of alkali lye filter 1, and output is connected to pickle tank
3, the 9th pipeline 25 is provided with the 9th automatic valve 26；The input of tenth pipeline 27 is connected with the input of the 9th pipeline 25, defeated
Go out to be connected to alkali cleaning flow container 4, the tenth pipeline 27 is provided with the tenth automatic valve 28；The input and the 9th pipeline of 11st pipeline 29
25 input is connected, and output is connected to the pipeline 29 of surfactant tank the 5, the 11st provided with the 11st automatic valve 30；Tenth
The input of two pipelines 31 is connected with the bottom of alkali lye filter 1, and output is connected to the pipeline 31 of cesspit the 33, the 12nd and is provided with
12nd automatic valve 32.
The course of work for the solution purification system that the present invention is provided is as follows：
S1, filtering：Close the second automatic valve 11, the 3rd automatic valve 13, the 4th automatic valve 15, the 5th automatic valve the 17, the 8th
Automatic valve 23, the 9th automatic valve 26, the tenth automatic valve 28, the 11st automatic valve 30 and the 12nd automatic valve 32, open first certainly
Dynamic valve 9, the 6th automatic valve 19 and the 7th automatic valve 21, the alkali lye of sludge containing are sent to alkali lye filter 1 after being pressurizeed by solution feed pump 7
In, the clean alkali lye after filtering is returned in alkali lye circulating tank 6.
S2, water backwashing：When differential pressure controller 24 reaches setting value 0.05MPa~0.4MPa (adjustable), first is closed
Automatic valve 9, the 6th automatic valve 19 and the 7th automatic valve 21, open the second automatic valve 11 and the 8th automatic valve 23, postpone 5s~60s
Opened again after (adjustable) rinse water in the 12nd automatic valve 32, washwater tank 2 pass sequentially through second pipe 10, the first pipeline 8,
6th pipeline 18, the 8th pipeline 22 and the 7th pipeline 20 enter in alkali lye filter 1 dirt carried out after water backwashing, water backwashing
From the bottom of alkali lye filter 1, discharge is discharged into cesspit 33 water by the 12nd pipeline 31.Water backwashing time lasting 10s~
After 120s (adjustable), if without S3 chemical cleaning operations, being switched to S1 and carrying out filter operation.
S3, Chemical cleaning：When carrying out filter operation S1, if to arrival pressure differential resetting value 0.05MPa since filtering
Time required for~0.4MPa (adjustable) is more obvious than normal time to be shortened, then illustrates that filter core is blocked more serious, now need into
Row chemical cleaning operation could recover the filter capacity of alkali lye filter 1.After backwash operation S2, the second automatic valve 11 is closed
With the 12nd automatic valve 32, the 3rd automatic valve 13 is opened, delay 5s~60s (adjustable) opens the 9th automatic valve 26, pickle afterwards
Acid solution in tank 3 passes sequentially through the 3rd pipeline 12, the first pipeline 8, the 6th pipeline 18, the 8th pipeline 22 and the 7th pipeline 20 and entered
Pickling is carried out in alkali lye filter 1, acid solution flows out through the 9th pipeline 25 from the bottom of alkali lye filter 1 and returned in pickling flow container 3,
Pickling time continues 10s~120s (adjustable)；Close the 3rd valve 13 and the 9th automatic valve 26, repeat step S2 water backwashings behaviour
Make；The second automatic valve 11 and the 12nd automatic valve 32 are closed, the 4th automatic valve 15 is opened, delay 5s~60s (adjustable) is opened afterwards
Alkali lye in tenth automatic valve 28, alkali cleaning flow container 4 passes sequentially through the 4th pipeline 14, the first pipeline 8, the 6th pipeline 18, the 8th pipe
The pipeline 20 of road 22 and the 7th, which enters, carries out alkali cleaning in alkali lye filter 1, alkali lye flows out through the 9th pipe from the bottom of alkali lye filter 1
The pipeline 27 of road 25 and the tenth is returned in alkali cleaning flow container 4, and the alkali cleaning time continues 10s~120s (adjustable)；Close the 4th automatic valve 15
With the tenth automatic valve 28, the 5th automatic valve 17 is opened, delay 5s~60s (adjustable) opens the 11st automatic valve 30 afterwards, and surface is lived
Surfactant solution in property agent tank 5 passes sequentially through the 5th pipeline 16, the first pipeline 8, the 6th pipeline 18, the and of the 8th pipeline 22
7th pipeline 20 enters to be cleaned in alkali lye filter 1, and the surfactant solution after cleaning flows from the bottom of alkali lye filter 1
Go out and returned to by the 9th pipeline 25 and the 11st pipeline 29 in surfactant tank 5, surfactant solution scavenging period continues
10s~120s (adjustable)；Close the 5th automatic valve 17 and the 11st automatic valve 30, the operation of repeat step S2 water backwashings, chemistry
Cleaning operation is finished.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (3)
1. a kind of solution purification system, it is characterised in that including alkali lye filter, washwater tank, pickling flow container, alkali cleaning flow container,
Surfactant tank and solution feed pump；The input of first pipeline is connected to alkali lye circulation pot bottom or pretreatment unit, output end with
The entrance of solution feed pump is connected, and the first pipeline is provided with the first automatic valve；The input of second pipe is connected to washwater tank, output end
It is connected with the output end of the first pipeline, second pipe is provided with the second automatic valve；The input of 3rd pipeline is connected to pickling flow container,
Output end is connected with the output end of the first pipeline, and the 3rd pipeline is provided with the 3rd automatic valve；The input of 4th pipeline is connected to alkali
Washing lotion tank, output end is connected with the output end of the first pipeline, and the 4th pipeline is provided with the 4th automatic valve；The input of 5th pipeline
Surfactant tank is connected to, output end is connected with the output end of the first pipeline, the 5th pipeline is provided with the 5th automatic valve；6th pipe
The input in road is connected to the outlet of solution feed pump, and output end is connected with the bottom of alkali lye filter, and the 6th deferent is provided with the 6th certainly
Dynamic valve；The input of 7th pipeline is connected with the top of alkali lye filter, and output, which is connected on alkali lye circulating tank, the 7th pipeline, to be set
There is the 7th automatic valve；The input of 8th pipeline is connected with the outlet of solution feed pump, and output end is connected with the top of alkali lye filter,
8th pipeline is provided with the 8th automatic valve；The input of 9th pipeline is connected with the bottom of alkali lye filter, and output is connected to acid
Washing lotion tank, the 9th pipeline is provided with the 9th automatic valve；The input of tenth pipeline is connected with the input of the 9th pipeline, output end
Alkali cleaning flow container is connected to, the tenth pipeline is provided with the tenth automatic valve；The input phase of the input and the 9th pipeline of 11st pipeline
Even, output is connected to surfactant tank, and the 11st pipeline is provided with the 11st automatic valve；The input and alkali of 12nd pipeline
The bottom of liquid filter is connected, and the 12nd pipeline is provided with the 12nd automatic valve.
2. solution purification system according to claim 1, it is characterised in that the top and bottom of the alkali lye filter it
Between be provided with differential pressure controller.
3. solution purification system according to claim 1, it is characterised in that the output of the 12nd pipeline is connected to dirt
Puddle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710490990.5A CN107321036A (en) | 2017-06-23 | 2017-06-23 | Solution purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710490990.5A CN107321036A (en) | 2017-06-23 | 2017-06-23 | Solution purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107321036A true CN107321036A (en) | 2017-11-07 |
Family
ID=60194581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710490990.5A Pending CN107321036A (en) | 2017-06-23 | 2017-06-23 | Solution purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107321036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432838A (en) * | 2018-11-28 | 2019-03-08 | 宜宾丝丽雅股份有限公司 | Alkali liquor purification device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10192605A (en) * | 1997-01-09 | 1998-07-28 | Toshiba Corp | Filter for filter bed and power generation plant provided with the same |
| CN201049266Y (en) * | 2007-06-13 | 2008-04-23 | 上虞永新双益环保设备有限公司 | Integrated purification device for emulsion or alkali liquor recovery in machining and steel rolling |
| CN104096692A (en) * | 2014-06-30 | 2014-10-15 | 吐鲁番楼兰酒业有限公司 | Automatic cleaning device and cleaning method thereof |
| CN204034411U (en) * | 2014-06-04 | 2014-12-24 | 温州市精工机械装备成套有限公司 | A kind of alkali lye filter |
| CN205084488U (en) * | 2015-10-29 | 2016-03-16 | 成都凯成轻工药业装备有限公司 | Alkaline liquor filtering device |
| CN206027464U (en) * | 2016-08-31 | 2017-03-22 | 浙江索纳克生物科技有限公司 | Filter membrane cleaning device is received to high efficiency |
-
2017
- 2017-06-23 CN CN201710490990.5A patent/CN107321036A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10192605A (en) * | 1997-01-09 | 1998-07-28 | Toshiba Corp | Filter for filter bed and power generation plant provided with the same |
| CN201049266Y (en) * | 2007-06-13 | 2008-04-23 | 上虞永新双益环保设备有限公司 | Integrated purification device for emulsion or alkali liquor recovery in machining and steel rolling |
| CN204034411U (en) * | 2014-06-04 | 2014-12-24 | 温州市精工机械装备成套有限公司 | A kind of alkali lye filter |
| CN104096692A (en) * | 2014-06-30 | 2014-10-15 | 吐鲁番楼兰酒业有限公司 | Automatic cleaning device and cleaning method thereof |
| CN205084488U (en) * | 2015-10-29 | 2016-03-16 | 成都凯成轻工药业装备有限公司 | Alkaline liquor filtering device |
| CN206027464U (en) * | 2016-08-31 | 2017-03-22 | 浙江索纳克生物科技有限公司 | Filter membrane cleaning device is received to high efficiency |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432838A (en) * | 2018-11-28 | 2019-03-08 | 宜宾丝丽雅股份有限公司 | Alkali liquor purification device and method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171107 |
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| RJ01 | Rejection of invention patent application after publication |