CN108043107A - A kind of gear-driving oil drilling liquid separating apparatus - Google Patents
A kind of gear-driving oil drilling liquid separating apparatus Download PDFInfo
- Publication number
- CN108043107A CN108043107A CN201810071533.7A CN201810071533A CN108043107A CN 108043107 A CN108043107 A CN 108043107A CN 201810071533 A CN201810071533 A CN 201810071533A CN 108043107 A CN108043107 A CN 108043107A
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- China
- Prior art keywords
- bolter
- separator box
- gear
- driving motor
- fine
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 title claims abstract description 26
- 239000012535 impurity Substances 0.000 claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000013519 translation Methods 0.000 claims description 8
- 241001014327 Anodontia Species 0.000 claims description 3
- 206010002583 anodontia Diseases 0.000 claims description 3
- 230000005212 anodontia Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 30
- 238000001914 filtration Methods 0.000 abstract description 8
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 abstract description 2
- 230000014616 translation Effects 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 3
- 239000007790 solid phase Substances 0.000 description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000010428 baryte Substances 0.000 description 2
- 229910052601 baryte Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 landwaste Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/02—Combinations of filters of different kinds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a kind of gear-driving oil drilling liquid separating apparatus, including pedestal, separator box, the first driving motor, the first bolter, the second bolter and fine separating tank, also interference fit is equipped with the first bolter and the second bolter on the main shaft, also level is installed with guiding slide bar inside the separator box, is oriented on slide bar and is slidably fitted with fine separating tank.The drilling fluids separating mechanism can be realized by centrifugal force and the impurity on the first bolter and the second bolter is cleared up automatically, avoid the situation of impurity plug-hole, moreover it is possible to save the time of cleaning, improve the efficiency of filtering；In fine filtering, wave sieve plate is arranged to wavy, so as to effectively improve turnover rate of the drilling fluid on wave sieve plate, drilling fluid is avoided to occur situation about condensing at low temperatures.
Description
Technical field
The present invention relates to field of petroleum exploitation, are specifically a kind of gear-driving oil drilling liquid separating apparatus.
Background technology
Drilling fluid is indispensable important component in petroleum drilling operation engineering, it be on the one hand related to safety,
Quickly, high-quality drilling well, is on the other hand related to reservoir protection.Drilling fluid plays the role of drilling process to be summarized as:
Hole wall, balance stratum soil pressure, cooling and lubricating drilling tool, offer downhole motor, fluid power detritus, foldback shaft bottom rock sample etc. are provided.
Drilling fluid is needed according to real work, it is specified that a series of drilling fluid performance parameters, are bored as adjustment and control
The foundation of well liquid performance.This performance parameter of solids content of drilling fluid is one of them, and mud solid phase generally comprises sand, bad
Soil, landwaste, bentonite, barite etc., the purpose of drilling fluid solid control are to remove harmful solid phase (landwaste, sand, bad soil), are protected
Having and use solid phase (barite, bentonite), in rational scope, property of drilling fluid could be stablized only various solid concentrations,
The due function of competence exertion drilling fluid.
The method of drilling fluid solid control is more, and wherein mechanical phonograph recorder separation application is universal, and the method is with used in process
The reasonable disposition of drill fluid purification equipment will be effectively improved the performance of drilling fluid, and then play the function of drilling fluid, improve and bore
Well benefit.But the filter plant screening efficiency of existing drilling fluid solid control is low, can not clear up impurity automatically, and operation is inconvenient
The shortcomings of.
The content of the invention
It is an object of the invention to provide a kind of gear-driving oil drilling liquid separating apparatus, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical solution：
A kind of gear-driving oil drilling liquid separating apparatus, including pedestal, separator box, the first driving motor, the first bolter,
Second bolter and fine separating tank, the pedestal are equipped with separator box, are bolted to connection between separator box and pedestal,
Upside left and right two parts of separator box are provided with the first filling opening and the second filling opening, and the center of the separator box passes through branch
Frame is installed with the first driving motor, and the output shaft of the first driving motor is straight down and the output shaft of the first driving motor is stretched
Enter the inside of separator box, be rotatablely connected between the output shaft of the first driving motor and the casing of separator box by bearing, first drives
The output shaft lower end of dynamic motor is fixedly connected with main shaft by shaft coupling, on main shaft also interference fit be equipped with the first bolter and
Second bolter, the first bolter are located at the top of the second bolter, first bolter and the second bolter and separator box
Inner wall between for clearance fit, be equipped with the first impurity removal port and the second impurity removal port at left and right sides of the separator box, first removes
Miscellaneous mouth and the second impurity removal port are located at the both sides of the first bolter and the second bolter respectively.
Also level is installed with guiding slide bar inside the separator box, is oriented on slide bar and is slidably fitted with fine separation
Slot, fine separating tank upside is equipped with wave sieve plate for openning shape and fine separating tank inner horizontal, so as to effectively improve drilling fluid
Turnover rate on wave sieve plate avoids drilling fluid from occurring situation about condensing, the bottom of the fine separating tank at low temperatures
Portion is equipped with drainage plate, and the left and right sides of the separator box is also provided with liquid outlet, spiral shell between the outlet of liquid outlet and fine separating tank
Line is connected with catheter, and the bottom of the separator box is also mounted by means of screws with slide, is slidably fitted on slide flat
Sliding sash is moved, the both sides up and down inside sliding sash is translated and is respectively equipped with teeth portion and lower teeth portion, the also fixed peace of rear side of the separator box
Equipped with the second driving motor, the output shaft of the second driving motor forward and stretch into translation sliding sash inside, the second driving motor it is defeated
Interference fit is equipped with half gear on shaft, and half half with teeth is anodontia on half gear, half gear and lower teeth portion and upper teeth portion phase
Mutually engagement connection, translates and supporting rod is welded on the upside of sliding sash, the downside that the upper end of supporting rod is welded on, and translates the both sides of sliding sash
Spring is connected between the left and right sides inner wall of separator box.
As further embodiment of the present invention：Insertion is equipped with drain on first filling opening and the second filling opening
Pipe, catheter one end is stretched into inside separator box.
As further scheme of the invention：First bolter and the second bolter are arc-shaped and surface is opened
There are several groups of circles through filter opening.
As further scheme of the invention：Impurity stop is also provided on first bolter and the second bolter
Slot, impurity stay groove are 4-6 groups.
As further scheme of the invention：Deflector is additionally provided with below second bolter, deflector is fixed
On the inner wall of separator box, baffle surface is skewed and angle of inclination is 120-125 °.
As further scheme of the invention：The wave floor lever of sieve tray is in wavy.
As further scheme of the invention：The bottom of the fine separating tank is equipped with drainage plate, and drainage plate is from centre
It is gradually reduced to height on both sides.
Compared with prior art, the beneficial effects of the invention are as follows：1. the drilling fluids separating mechanism can be realized by centrifugal force
Impurity on first bolter and the second bolter is cleared up automatically, avoids the situation of impurity plug-hole, moreover it is possible to save cleaning
Time, improve the efficiency of filtering；
2. in fine filtering, wave sieve plate is arranged to it is wavy, so as to effectively improve stream of the drilling fluid on wave sieve plate
Dynamic rate, avoids drilling fluid from occurring situation about condensing at low temperatures；
3. by the way that fine separating tank is driven to move left and right, so as to greatly improve drilling fluid being separated by filtration inside fine separating tank
Speed improves separated efficiency.
Description of the drawings
Fig. 1 is a kind of structure diagram of gear-driving oil drilling liquid separating apparatus.
Fig. 2 is a kind of top view of the first bolter in gear-driving oil drilling liquid separating apparatus.
Fig. 3 is a kind of top view of fine separating tank in gear-driving oil drilling liquid separating apparatus.
In figure：1- pedestals, 2- separator boxs, the first filling openings of 3-, the second filling openings of 4-, the first driving motors of 5-, 6- main shafts,
The first bolters of 7-, the second bolters of 8-, the first impurity removal ports of 9-, the second impurity removal ports of 10-, 11- deflectors, 12- be oriented to slide bar,
The fine separating tanks of 13-, 14- waves sieve plate, 15- drainage plates, 16- liquid outlets, 17- catheters, 18- slides, 19- translations are slided
The upper teeth portion of teeth portion, 21-, the second driving motors of 22-, half gears of 23-, 24- springs, 25- supporting rods under frame, 20-.
Specific embodiment
The technical solution of this patent is described in more detail With reference to embodiment.
- 3 are please referred to Fig.1, a kind of gear-driving oil drilling liquid separating apparatus drives including pedestal 1, separator box 2, first
Dynamic motor 5, the first bolter 7, the second bolter 8 and fine separating tank 13, the pedestal 1 are equipped with separator box 2, separator box 2
It is bolted to connection between pedestal 1, upside left and right two parts of separator box 2 are provided with the first filling opening 3 and second and add
Insertion is equipped with catheter on liquid mouth 4, the first filling opening 3 and the second filling opening 4, and catheter one end is stretched into inside separator box 2,
The other end is connected with drilling fluid conveying device, and the center of the separator box 2, which is fixed by the bracket, is equipped with the first driving electricity
Machine 5, the output shaft of the first driving motor 5 is straight down and the output shaft of the first driving motor 5 stretches into the inside of separator box 2, and
It is rotatablely connected between the output shaft of one driving motor 5 and the casing of separator box 2 by bearing, the output shaft of the first driving motor 5
Lower end is fixedly connected with main shaft 6 by shaft coupling, and also interference fit is equipped with the first bolter 7 and the second bolter on main shaft 6
8, the first bolter 7 is located at the top of the second bolter 8, the first bolter 7 and the second bolter 8 is arc-shaped and surface is opened
There are several groups of circles to be also provided with impurity stay groove on filter opening, the first bolter 7 and the second bolter 8, impurity stay groove is
4-6 groups are clearance fit between 7 and second bolter 8 of the first bolter and the inner wall of separator box 2, the separator box 2
The left and right sides is equipped with the first impurity removal port 9 and the second impurity removal port 10, and the first impurity removal port 9 and the second impurity removal port 10 are located at first respectively
The both sides of 7 and second bolter 8 of bolter, when petroleum drilling fluid enters separator box from the first filling opening 3 and the second filling opening 4
It in 2, drops into successively on the first bolter 7 and the second bolter 8, the first bolter 7 and the second bolter 8 are passed through equipped with circle
Filter opening is worn, filter opening is filtered petroleum drilling fluid, and the impurity being relatively large in diameter rests on the first bolter 7 and the second bolter 8
On impurity stay groove in, while be powered the first driving motor 5 is made to start to work, the first driving motor 5 drive the first bolter 7
Start to rotate with the second bolter 8, it will be in the impurity stay groove in the first bolter 7 and the second bolter 8 using centrifugal force
Impurity is thrown away, and is had respectively entered in the first impurity removal port 9 and the second impurity removal port 10, so as to fulfill to the first bolter 7 and second
Impurity on bolter 8 is cleared up automatically, avoids the situation of impurity plug-hole, moreover it is possible to be saved the time of cleaning, be improved filtering
Efficiency.
The lower section of second bolter 8 is additionally provided with deflector 11, and deflector 11 is fixedly mounted on the inner wall of separator box 2
On, 11 surface of deflector is skewed and angle of inclination is 120-125 °, and 2 inside of separator box also level, which is installed with, to be led
It to slide bar 12, is oriented on slide bar 12 and is slidably fitted with fine separating tank 13, fine 13 upside of separating tank is openning shape and fine point
Wave sieve plate 14 is equipped with from 13 inner horizontal of slot, 14 surface of wave sieve plate is in wavy, so as to effectively improve drilling fluid in wave
Turnover rate on sieve plate 14 avoids drilling fluid from occurring situation about condensing, the bottom of the fine separating tank 13 at low temperatures
Equipped with drainage plate 15, drainage plate 15 is gradually reduced from centre to height on both sides, and the both sides of fine separating tank 13 are also provided with outlet, institute
The left and right sides for stating separator box 2 is also provided with liquid outlet 16, is threaded between the outlet of liquid outlet 16 and fine separating tank 13
Catheter 17, the bottom of the separator box 2 are also mounted by means of screws with slide 18, translation are slidably fitted on slide 18
Sliding sash 19 translates the both sides up and down inside sliding sash 19 and is respectively equipped with teeth portion 21 and lower teeth portion 20, and the rear side of the separator box 2 is also
It is installed with the second driving motor 22, the output shaft of the second driving motor 22 forward and is stretched into inside translation sliding sash 19, second
Interference fit is equipped with half gear 23 on the output shaft of driving motor 22, and half half with teeth is anodontia on half gear 23, half gear
23 connect with lower teeth portion 20 and the intermeshing of upper teeth portion 21, and the upside of translation sliding sash 19 is welded with supporting rod 25, supporting rod 25
Upper end is welded on 13 downside, translates and is connected with spring 24 between the both sides of sliding sash 19 and the left and right sides inner wall of separator box 2；When
By the petroleum drilling fluid that tentatively filters leading back into in fine separating tank 13 by deflector 11, then pass through wave
Sieve plate 14 carries out fine filtering, while being powered makes the second driving motor 22 start to work, when the second driving motor 22 is started to work
When half gear 23 is driven to start to rotate clockwise, when half gear 23 is engaged with lower teeth portion 20, drive translation sliding sash 19 slide to the left
Dynamic, when half gear 23 engage with upper teeth portion 21, drive translates sliding sash 19 and slides to the right, by translate sliding sash 19 horizontally slip from
And fine separating tank 13 is driven to move left and right, so as to greatly improve drilling fluid speed is separated by filtration inside fine separating tank 13
Degree, improves separated efficiency.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from the knowledge that one skilled in the relevant art possesses
It makes a variety of changes.
Claims (7)
1. a kind of gear-driving oil drilling liquid separating apparatus, including pedestal（1）, separator box（2）, the first driving motor（5）、
First bolter（7）, the second bolter（8）With fine separating tank（13）, it is characterised in that：The pedestal（1）It is equipped with separation
Case（2）, separator box（2）With pedestal（1）Between be bolted to connection, separator box（2）Upside left and right two parts be provided with
First filling opening（3）With the second filling opening（4）, the separator box（2）Center be fixed by the bracket the first drive be installed
Dynamic motor（5）, the first driving motor（5）Output shaft straight down and the first driving motor（5）Output shaft stretch into separator box
（2）Inside, the first driving motor（5）Output shaft and separator box（2）Casing between be rotatablely connected by bearing, first drive
Dynamic motor（5）Output shaft lower end main shaft is fixedly connected with by shaft coupling（6）, main shaft（6）On also interference fit be equipped with the
One bolter（7）With the second bolter（8）, the first bolter（7）Positioned at the second bolter（8）Top, the first bolter（7）
With the second bolter（8）With separator box（2）Inner wall between for clearance fit, the separator box（2）The left and right sides be equipped with
First impurity removal port（9）With the second impurity removal port（10）, the first impurity removal port（9）With the second impurity removal port（10）It is located at the first bolter respectively
（7）With the second bolter（8）Both sides；The separator box（2）Inside also level is installed with guiding slide bar（12）, it is oriented to and slides
Bar（12）On be slidably fitted with fine separating tank（13）, fine separating tank（13）Upside is openning shape and fine separating tank（13）It is interior
Portion is horizontal to be equipped with wave sieve plate（14）, fine separating tank（13）Both sides be also provided with outlet, the separator box（2）The left and right sides
Also it is provided with liquid outlet（16）, liquid outlet（16）With fine separating tank（13）Outlet between be threaded with catheter（17）,
The separator box（2）Bottom be also mounted by means of screws with slide（18）, slide（18）On be slidably fitted with translation sliding sash
（19）, translate sliding sash（19）Internal both sides up and down are respectively equipped with teeth portion（21）With lower teeth portion（20）, the separator box（2）'s
Rear side is also installed with the second driving motor（22）, the second driving motor（22）Output shaft forward and stretch into translation sliding sash
（19）Inside, the second driving motor（22）Output shaft on interference fit half gear is installed（23）, half gear（23）Upper half
Half with teeth is anodontia, half gear（23）With lower teeth portion（20）With upper teeth portion（21）Intermeshing connection, translates sliding sash（19）It is upper
Side is welded with supporting rod（25）, supporting rod（25）Upper end be welded on（13）Downside, translate sliding sash（19）Both sides with separating
Case（2）Left and right sides inner wall between be connected with spring（24）.
2. a kind of gear-driving oil drilling liquid separating apparatus according to claim 1, it is characterised in that：Described first
Filling opening（3）With the second filling opening（4）On insertion catheter is installed, separator box is stretched into catheter one end（2）It is internal.
3. a kind of gear-driving oil drilling liquid separating apparatus according to claim 1, it is characterised in that：Described first
Bolter（7）With the second bolter（8）Be arc-shaped and surface be provided with several groups it is circular through filter opening.
4. a kind of gear-driving oil drilling liquid separating apparatus according to claim 1, it is characterised in that：Described first
Bolter（7）With the second bolter（8）On be also provided with impurity stay groove, impurity stay groove is 4-6 groups.
5. a kind of gear-driving oil drilling liquid separating apparatus according to claim 1, it is characterised in that：Described second
Bolter（8）Lower section be additionally provided with deflector（11）, deflector（11）It is fixedly mounted on separator box（2）Inner wall on, deflector
（11）Surface is skewed and angle of inclination is 120-125 °.
6. a kind of gear-driving oil drilling liquid separating apparatus according to claim 1, it is characterised in that：The wave
Sieve plate（14）Surface is in wavy.
7. a kind of gear-driving oil drilling liquid separating apparatus according to claim 1, it is characterised in that：It is described fine
Separating tank（13）Bottom be equipped with drainage plate（15）, drainage plate（15）It is gradually reduced from centre to height on both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071533.7A CN108043107A (en) | 2018-01-25 | 2018-01-25 | A kind of gear-driving oil drilling liquid separating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810071533.7A CN108043107A (en) | 2018-01-25 | 2018-01-25 | A kind of gear-driving oil drilling liquid separating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108043107A true CN108043107A (en) | 2018-05-18 |
Family
ID=62124704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810071533.7A Pending CN108043107A (en) | 2018-01-25 | 2018-01-25 | A kind of gear-driving oil drilling liquid separating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108043107A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246123A (en) * | 2016-09-19 | 2016-12-21 | 天津帅通科技发展有限公司 | A kind of petroleum drilling fluid screening plant |
| CN107469453A (en) * | 2017-09-05 | 2017-12-15 | 迟 | A kind of optical glass lens recycle filter with water-base cleaning liquid |
| CN107570268A (en) * | 2017-09-11 | 2018-01-12 | 广州林腾生物科技有限公司 | A kind of exhaust-gas treatment grinds screening plant with activated carbon |
| CN208032080U (en) * | 2018-01-25 | 2018-11-02 | 张荷友 | A kind of gear-driving oil drilling liquid separating apparatus |
-
2018
- 2018-01-25 CN CN201810071533.7A patent/CN108043107A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246123A (en) * | 2016-09-19 | 2016-12-21 | 天津帅通科技发展有限公司 | A kind of petroleum drilling fluid screening plant |
| CN107469453A (en) * | 2017-09-05 | 2017-12-15 | 迟 | A kind of optical glass lens recycle filter with water-base cleaning liquid |
| CN107570268A (en) * | 2017-09-11 | 2018-01-12 | 广州林腾生物科技有限公司 | A kind of exhaust-gas treatment grinds screening plant with activated carbon |
| CN208032080U (en) * | 2018-01-25 | 2018-11-02 | 张荷友 | A kind of gear-driving oil drilling liquid separating apparatus |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180518 |
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| RJ01 | Rejection of invention patent application after publication |