CN108277504B - Crust breaking cylinder height adjusting device with pneumatic motor - Google Patents
Crust breaking cylinder height adjusting device with pneumatic motor Download PDFInfo
- Publication number
- CN108277504B CN108277504B CN201711334642.5A CN201711334642A CN108277504B CN 108277504 B CN108277504 B CN 108277504B CN 201711334642 A CN201711334642 A CN 201711334642A CN 108277504 B CN108277504 B CN 108277504B
- Authority
- CN
- China
- Prior art keywords
- pneumatic motor
- crust breaking
- breaking cylinder
- adjusting device
- height adjusting
- 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
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 35
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 238000005868 electrolysis reaction Methods 0.000 claims description 25
- 239000003792 electrolyte Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000010276 construction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/14—Devices for feeding or crust breaking
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
A crust breaking cylinder height adjusting device provided with a pneumatic motor is mainly applied to structural design and production of crust breaking cylinders and relates to manufacturing of electrolytic aluminum production technical equipment and electrolytic aluminum production. The technical characteristics are that: the screw height adjusting device arranged at the side part of the crust breaking cylinder is driven by a pneumatic motor; the device comprises a screw rod, a screw rod height adjusting device, a pneumatic motor, a speed reducer, a screw rod height adjusting device and a shell forming cylinder.
Description
Technical field: the utility model provides a high adjusting device of crust breaking cylinder of configuration pneumatic motor mainly is applied to crust breaking cylinder's structural design and production to relate to the manufacturing and the electrolytic aluminum production of electrolytic aluminum production technical equipment.
The background technology is as follows: in the existing production process of electrolytic aluminum, in order to prevent the crust breaking hammer of the aluminum electrolysis cell from binding the electrolyte long package, the crust breaking and discharging device of the aluminum electrolysis cell can work according to preset design requirements. The inventor Gao Dejin of the present application proposes and discloses a screw height adjusting device arranged on the side of an aluminum electrolysis cell crust-breaking cylinder, and by adjusting the height of a fixed point of the aluminum electrolysis cell crust-breaking cylinder, the height of a bottom dead center of a crust-breaking hammer is controlled, namely, the depth of the crust-breaking hammer inserted into electrolyte solution of the aluminum electrolysis cell is controlled, so that the electrolyte ladle is prevented from being adhered to the hammer, the crust-breaking hammer can open the electrolyte crust by 100% of impact, a regular discharge hole fire hole is formed, and the alumina powder can be accurately added into the electrolyte solution according to the set technical requirement, see the technical scheme of Chinese patent publication number ()
The technical scheme of arranging a height screw rod height adjusting device on the side part of the aluminum cell crust breaking cylinder has the technical effect that the control mode of the height adjusting device of the crust breaking cylinder of the aluminum cell is not only the core technology of the crust breaking and discharging device of the aluminum cell, but also the key technology of the production process control of the aluminum cell
The prior art of adjusting and controlling the height of the crust breaking cylinder of the aluminum electrolysis cell, namely the driving control mode of the crust breaking cylinder screw rod height adjusting device, is still in the technical process state of manually adjusting. The technology is characterized in that the height of the electrolyte in the aluminum electrolysis cell, the height of the electrolyte covering material crust layer and the abrasion condition of the crust breaking hammer are determined by a manual measurement method, then the height of the installation fixed point of the crust breaking cylinder is adjusted by climbing to the upper part of the electrolysis cell by a smelting worker according to the experience of the smelting worker and adopting a manual operation driving mode to rotate the screw rod.
The main drawbacks of this manual work operation are: firstly, the labor intensity of manual operation is high; secondly, the human error factors of experience judgment are more; and thirdly, controlling the relative hysteresis of the operation process.
In order to overcome the above-mentioned drawbacks, the inventor proposes in the original patent application document that an electromechanical driving device is installed above the height adjusting device of the crust breaking cylinder, and a control system of a driving motor is connected with a control box of the aluminum electrolysis cell, and the driving motor is controlled by adopting a cell control box to drive a screw to rotate so as to realize the technical scheme of controlling and adjusting the height of the installation fixing point of the crust breaking cylinder.
However, in the existing electrolytic tank structural design and production process, a motor driving device is adopted to adjust and drive a crust breaking cylinder height adjusting device, and the following disadvantages are also caused:
firstly, under the working condition technical condition of high magnetic field of the electrolytic tank, the configured driving motor needs to be driven by a special motor capable of overcoming magnetic field interference, and the construction cost is high.
Secondly, under the working condition technical condition of high temperature of the electrolytic tank, the configured driving motor is required to be driven by a high-temperature-resistant special motor, and the construction cost is high.
Thirdly, under the working condition technical condition of dust pollution of the electrolytic tank, the configured driving motor is required to be driven by adopting a dustproof special motor, and the construction cost is high.
Namely, the driving motor of the mechanical driving device works under the working conditions of high magnetic field, high temperature and high dust, so that the failure rate is high, and the construction cost and the maintenance cost are relatively high. This not only increases the cost of production achieved by the technique. And the popularization and application of the technology of arranging the screw height adjusting device on the side part of the crust breaking cylinder are affected.
The invention comprises the following steps: in order to realize unattended operation and remote automatic control of the aluminum electrolysis cell, the labor intensity of workers is reduced, and the negative influence of human interference on the production process of the aluminum electrolysis cell is reduced. In order to solve the problems of high configuration cost, high failure rate, high maintenance cost and the like caused by the fact that the existing crust breaking cylinder height adjusting device of the aluminum electrolysis cell adopts a motor to perform configuration driving and works under the working conditions of high magnetic field, high temperature and high dust, the invention provides a novel technical scheme for driving a screw rod of the crust breaking cylinder height adjusting device to rotate, namely the crust breaking cylinder height adjusting device provided with a pneumatic motor, for popularization and application.
A crust breaking cylinder height adjusting device provided with a pneumatic motor is characterized in that: the screw height adjusting device arranged at the side part of the crust breaking cylinder is driven by a pneumatic motor; the device comprises a screw rod, a screw rod height adjusting device, a pneumatic motor, a speed reducer, a screw rod height adjusting device and a shell forming cylinder.
According to the technical scheme, the air supply power system of the pneumatic motor is connected with the air supply power system of the crust breaking cylinder, namely the compressed air power source configured by the pneumatic motor and the compressed air power source configured by the crust breaking cylinder are the same air supply system. The arrangement can utilize the existing air supply system of the aluminum electrolysis cell, thereby reducing the investment cost.
According to the technical scheme, the reversing valve is arranged on the air supply pipeline of the pneumatic motor, and the control mode of the reversing valve can be manually controlled or electrically controlled.
According to the technical scheme, the pneumatic motor can rotate left and right under the control of the reversing valve so as to drive the screw to rotate left and right, so that the screw height adjusting device can be used for installing a fixed point on the crust breaking cylinder and can perform the functions of up-and-down adjustment and stop positioning.
According to the technical scheme: the side of the screw height adjusting device is provided with a crust breaking cylinder which can move up and down through the rotation drive of a pneumatic motor.
According to the technical scheme: the screw height adjusting device at the side part of the crust breaking cylinder is composed of a pneumatic motor, screw, a linear guide rail, a supporting and installing frame, a guide connection lifting slide block and other parts.
According to the technical scheme: the screw height adjusting device at the side part of the crust breaking cylinder is formed by a pneumatic motor speed reducer, a screw, a linear guide rail, a supporting and mounting frame, a guide connection lifting sliding block and other parts.
According to the technical scheme, the pneumatic motor can be designed into a mode of remotely controlling the electromagnetic reversing valve, and the action position program of the reversing valve corresponding to the pneumatic motor is controlled through the electric control element, so that the pneumatic motor can drive the screw rod to rotate left and right or perform closing stop limit operation
According to the technical scheme, when the pneumatic motor is controlled by adopting the electromagnetic directional valve, the circuit control system of the electromagnetic directional valve can be connected with the tank control box, and can control the steering of the pneumatic motor and the rotation number of the screw rod according to the level height of electrolyte in the aluminum electrolytic tank so as to realize the instant automatic adjustment of the mounting height of the crust breaking cylinder of the aluminum electrolytic tank.
The aluminum electrolysis cell crust breaking cylinder screw height adjusting device is provided with an electric motor to drive the screw height adjusting device, and has the following advantages.
Because the pneumatic motor and the crust breaking cylinder share one compressed air supply system, the construction cost of the configuration of the driving device can be reduced. I.e. compared with the electric motor technical proposal, no motor power cable line is arranged.
Because the pneumatic motor has the characteristics of magnetic field interference resistance, relative high temperature resistance and suitability for working in an environment with higher dust content, compared with the driving of an electric motor, the pneumatic motor has the characteristic of strong adaptability.
The pneumatic motor has the characteristics of large driving load adjusting range, not only can realize variable speed driving adjustment of the screw, but also can realize variable torque driving adjustment of the screw, so that the pneumatic motor has the characteristics of wide application range and flexible structural arrangement, and can reduce the abrasion maintenance failure rate of the pneumatic motor body.
The crust breaking air height adjusting device driven by pneumatic Ma Hang is arranged on the crust breaking air cylinder of the aluminum electrolysis cell. The technical support is provided for the unmanned technical progress of the electrolytic aluminum production.
Description of the drawings: the technical scheme and the characteristics of the crust breaking cylinder height adjusting device driven by the pneumatic motor are more clear through the description of the drawings and the embodiment.
Fig. 1 is a front view of an embodiment 1 of a pneumatic motor drive apparatus configured by a crust-breaking cylinder screw.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a front view of embodiment 2 of the pneumatic motor driving device configured by a crust-breaking cylinder screw.
Fig. 4 is a side view of fig. 3.
Fig. 5 is a diagram showing the arrangement of compressed air lines and control lines of the pneumatic motor driving device and the crust breaking cylinder.
The figure shows: the pneumatic control device comprises a pneumatic motor 1, a speed reducer 2, a screw 3, a mounting support frame 4, a linear guide rail 5, a guide lifting connecting sliding block 6, a crust breaking cylinder 7, a cylinder connecting block 8, a cylinder piston rod 9, a motor connecting pipe head 10, a cylinder connecting pipe head 11, a pneumatic motor reversing valve 12, a pneumatic motor reversing valve 13, a pneumatic motor high-pressure air pipe 14, a pneumatic motor high-pressure air pipe 15, a pneumatic motor reversing valve control connecting line 16, a pneumatic motor reversing valve control connecting line 17 and a pneumatic control cabinet 18.
The specific embodiment is as follows: the invention relates to a crust breaking cylinder height adjusting device provided with a pneumatic motor, which is a technical scheme for driving and controlling a screw rod height adjusting device for a fixed point of an aluminum electrolysis cell crust breaking cylinder installation. The specific structure and control driving principle of the device are more clear through the description of the embodiment.
Embodiment 1 as shown in fig. 2 and 2, a screw height adjusting device is arranged on the side part of a crust breaking cylinder, the device is formed by a mounting support frame (4), a screw (3), a guide sliding rod (5) and a guide lifting connecting sliding block (6), the guide lifting connecting sliding block (6) is structurally connected with a cylinder connecting block arranged on the crust breaking cylinder by adopting bolts, and the crust breaking cylinder (7) can perform up-down linear motion by rotating the screw (3).
The innovation point of the embodiment is that the rotation driving mode of the screw rod is innovatively designed by combining the existing aluminum electrolysis tank structure and the existing aluminum electrolysis process condition, and the structure and arrangement characteristics are that a set of pneumatic motor (1) and a speed reducer driving device are designed and arranged at the upper part of an installation support frame (4) and the upper end of a screw rod (3) shaft, namely the driving device is formed by combining the pneumatic motor (1) and the speed reducer (2), the output shaft of the speed reducer (2) is structurally connected with the upper end of the screw rod (3) shaft, and the speed reducer is fixedly installed on an upper horizontal plate of the installation support frame (4) through bolts. The screw rod (3) can rotate left and right by the driving of the pneumatic motor (1) and can drive the crust breaking cylinder to move up and down in a straight line.
In the embodiment, the power source of the pneumatic motor (1), namely the compressed air supply source, and the high-pressure air pipe supply system of the crust breaking cylinder (1) of the electrolysis plant are the same as the compressed air pipeline (18) system. As shown in fig. 5.
A reversing valve (12) is arranged on the air supply system of the pneumatic motor (1) and is used for controlling the left and right rotation and the closing stop action of the pneumatic motor. The reversing valve (12) can be designed into a manual reversing valve or a pneumatic reversing valve or an electromagnetic reversing valve for remote control; the control point is arranged in a pneumatic control cabinet (19) and can be connected with a tank control box control system of the aluminum electrolysis tank.
During operation, a control element on the pneumatic control cabinet is used for controlling an action position program of the reversing valve (12) corresponding to the pneumatic motor (1), so that the pneumatic motor (1) can drive the screw rod (3) to rotate left and right or perform closing stop limit operation.
The aluminum electrolysis cell commonly used at present is provided with 4 to 6 crust breaking cylinders (7), and the control system of the screw height adjusting device of the crust breaking cylinders (7) and the pneumatic control system of the crust breaking cylinders (7) can be arranged in a pneumatic control cabinet (19).
If the electric remote control is adopted, the control system of the pneumatic motors (1) of a plurality of aluminum electrolysis cells can be arranged in one control unit.
In embodiment 2, as shown in fig. 3 and 4, the structure and control principle of the present embodiment are basically the same as those of the embodiment, and the difference is that the pneumatic motor driving device mounted on the upper portion of the support frame (4) and the upper end of the shaft of the screw (3) is configured as a single pneumatic motor (1), no speed reducer (2) is provided, the output shaft of the pneumatic motor is directly connected with the upper end of the shaft of the screw (3) by structure, and the pneumatic motor is fixedly mounted on the upper horizontal plate of the support frame (4) by bolts. The screw rod (3) can rotate left and right by the driving of the pneumatic motor (1) and can drive the crust breaking cylinder (7) to move up and down in a straight line.
Claims (3)
1. A crust breaking cylinder height adjusting device provided with a pneumatic motor, which is characterized in that: a set of pneumatic motor and a reducer driving device are designed and configured at the upper part of the mounting support frame and the upper end of the screw shaft, namely the driving device is formed by combining the pneumatic motor and the reducer, an output shaft of the reducer is structurally connected with the upper end of the screw shaft, and the reducer is fixedly mounted on an upper horizontal plate of the mounting support frame through bolts; the power air supply system of the pneumatic motor is connected with the air supply system of the crust breaking cylinder, namely the compressed air power source configured by the pneumatic motor and the compressed air power source configured by the crust breaking cylinder are the same air supply system; an electromagnetic reversing valve is arranged on the air supply pipeline of the pneumatic motor; when the pneumatic motor is controlled by adopting the electromagnetic reversing valve, the steering of the pneumatic motor and the rotation number of the screw rod can be controlled according to the level height of electrolyte in the aluminum electrolysis cell so as to realize the instant automatic adjustment of the installation height point of the crust breaking cylinder of the aluminum electrolysis cell.
2. A crust breaking cylinder height regulating device for configuring a pneumatic motor as claimed in claim 1, wherein: the control point of the electromagnetic reversing valve is arranged in the pneumatic control cabinet and is connected with a tank control system of the aluminum electrolysis tank.
3. A crust breaking cylinder height regulating device for configuring a pneumatic motor as claimed in claim 1, wherein: the screw height adjusting device arranged on the side part of the crust breaking cylinder is formed by a pneumatic motor speed reducer, screw, a linear guide rail, a supporting and mounting frame, a guide connection lifting sliding block and other parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711334642.5A CN108277504B (en) | 2017-12-06 | 2017-12-06 | Crust breaking cylinder height adjusting device with pneumatic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711334642.5A CN108277504B (en) | 2017-12-06 | 2017-12-06 | Crust breaking cylinder height adjusting device with pneumatic motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108277504A CN108277504A (en) | 2018-07-13 |
| CN108277504B true CN108277504B (en) | 2024-03-26 |
Family
ID=62801590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711334642.5A Active CN108277504B (en) | 2017-12-06 | 2017-12-06 | Crust breaking cylinder height adjusting device with pneumatic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108277504B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587033A (en) * | 2019-09-20 | 2019-12-20 | 苏州金品智慧机器人制造股份有限公司 | Steel band burring device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004074315A (en) * | 2002-08-12 | 2004-03-11 | Max Co Ltd | Air motor stopping mechanism of compressed-air driving screw driver |
| CN202279861U (en) * | 2011-09-22 | 2012-06-20 | 广西来宾银海铝业有限责任公司 | Automatic feeding device for anode feeding material of aluminum electrolysis anode |
| CN105256333A (en) * | 2015-11-23 | 2016-01-20 | 株洲天桥起重机股份有限公司 | Anode replacement system for aluminum electrolysis production |
| CN205062203U (en) * | 2015-09-23 | 2016-03-02 | 洛阳曦光气动液压元件有限公司 | Electrolytic aluminum crust breaking controlling means |
| CN205387595U (en) * | 2016-01-18 | 2016-07-20 | 河南汇金冶金科技有限公司 | Positive pole generating line promotes automation equipment |
| CN106119894A (en) * | 2016-08-05 | 2016-11-16 | 高德金 | Crust breaking cylinder sidepiece is configured with the aluminium cell of height adjuster |
| CN106591886A (en) * | 2016-08-05 | 2017-04-26 | 高德金 | Height adjusting device for crust breaking air cylinder of aluminum electrolytic bath |
-
2017
- 2017-12-06 CN CN201711334642.5A patent/CN108277504B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004074315A (en) * | 2002-08-12 | 2004-03-11 | Max Co Ltd | Air motor stopping mechanism of compressed-air driving screw driver |
| CN202279861U (en) * | 2011-09-22 | 2012-06-20 | 广西来宾银海铝业有限责任公司 | Automatic feeding device for anode feeding material of aluminum electrolysis anode |
| CN205062203U (en) * | 2015-09-23 | 2016-03-02 | 洛阳曦光气动液压元件有限公司 | Electrolytic aluminum crust breaking controlling means |
| CN105256333A (en) * | 2015-11-23 | 2016-01-20 | 株洲天桥起重机股份有限公司 | Anode replacement system for aluminum electrolysis production |
| CN205387595U (en) * | 2016-01-18 | 2016-07-20 | 河南汇金冶金科技有限公司 | Positive pole generating line promotes automation equipment |
| CN106119894A (en) * | 2016-08-05 | 2016-11-16 | 高德金 | Crust breaking cylinder sidepiece is configured with the aluminium cell of height adjuster |
| CN106591886A (en) * | 2016-08-05 | 2017-04-26 | 高德金 | Height adjusting device for crust breaking air cylinder of aluminum electrolytic bath |
| CN107236971A (en) * | 2016-08-05 | 2017-10-10 | 高德金 | Crust breaking cylinder screw height adjuster |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108277504A (en) | 2018-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106835199B (en) | Height adjusting device for crust breaking cylinder | |
| CN207712951U (en) | A kind of BLU reclaimer robots | |
| WO2014059749A1 (en) | Pumping unit capable of automatically adjusting balance | |
| CN106926300B (en) | A kind of EPS rotary cutting devices | |
| CN108277504B (en) | Crust breaking cylinder height adjusting device with pneumatic motor | |
| CN111139501A (en) | Crust breaking cylinder connection structure mode | |
| CN106119894B (en) | Aluminum electrolytic cell with height adjusting device arranged on side part of crust breaking cylinder | |
| CN208454434U (en) | Heavy forklift door frame lifting altitude positioning control system | |
| CN108376939B (en) | Device for replacing suspension insulator string of power transmission line | |
| CN104651576A (en) | Furnace cover lifting device for tempering furnace | |
| CN205165496U (en) | Continuous blowing, continuous cutting device | |
| CN209954448U (en) | Polishing floating device and floating mechanism thereof | |
| CN204397278U (en) | A kind of high pulling torque torsion spring automatic installation mechanism | |
| CN203566218U (en) | Busbar lifting frame full-automatic fixture operating device | |
| CN204434665U (en) | A kind of tempering stove bell jack up unit | |
| CN202208764U (en) | Self-adapting crust-pressing device for electrolytic tank | |
| CN111286760A (en) | Cathode adjusting device for rare earth molten salt electrolytic furnace | |
| CN112496282A (en) | Quick-change crystallizer vibration device based on electro-hydraulic direct drive | |
| CN205405280U (en) | From control retaining system | |
| CN109913909A (en) | A kind of driving method of crust breaking cylinder height adjuster | |
| CN206702577U (en) | Rubber blanket feeding manipulator component is used in a kind of magnetic valve assembling | |
| CN203737027U (en) | Pitch adjustment device of air-supply spray dust collector | |
| CN219429498U (en) | Emulsion hoist lifting hook mechanism with automatic control structure | |
| CN214271071U (en) | Auxiliary device for improving online utilization rate of crust breaking cylinder and charging system | |
| CN221256035U (en) | Wall plastering machine for building interior decoration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |