CN111004636A - Automatic temperature measurement robot for straight movement of coke oven - Google Patents
Automatic temperature measurement robot for straight movement of coke oven Download PDFInfo
- Publication number
- CN111004636A CN111004636A CN201911319169.2A CN201911319169A CN111004636A CN 111004636 A CN111004636 A CN 111004636A CN 201911319169 A CN201911319169 A CN 201911319169A CN 111004636 A CN111004636 A CN 111004636A
- Authority
- CN
- China
- Prior art keywords
- temperature measurement
- coke oven
- temperature measuring
- coal charging
- control cabinet
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to the technical field of temperature measurement of the top of a coke oven, and discloses a coke oven straight-moving automatic temperature measurement robot which comprises a coal charging car arranged on the top of the coke oven, wherein fire observation hole covers are arranged on observation holes in the top of a combustion chamber of the coke oven, a cover opening mechanism is arranged on the coal charging car and comprises a pneumatic control cabinet arranged on the coal charging car and a pneumatic telescopic arm arranged in the vertical direction on the side surface of the pneumatic control cabinet through a support, a cover taking permanent magnet is arranged at the bottom end of the pneumatic telescopic arm, a temperature measurement device is also arranged in the pneumatic control cabinet, and the temperature measurement device comprises an infrared temperature measurement probe aligned below the cover taking permanent magnet. The coke oven straight automatic temperature measurement robot solves the problems of large temperature measurement error and high labor intensity generated in manual temperature measurement and the safety problem of temperature measurement personnel walking on a coke oven, realizes the full-automatic non-human-intervention intellectualization of coke oven straight temperature measurement, and improves the automation degree of coke oven temperature measurement.
Description
Technical Field
The invention relates to the field of temperature measurement of the top of a coke oven, in particular to a coke oven straight-moving automatic temperature measurement robot.
Background
The temperature measuring post of the coke oven is mainly responsible for monitoring, measuring and adjusting the temperature of the oven body and the pressure of gas, and simultaneously finishes the compilation of the discharging plan of the coke oven and comprehensively controls various relevant process parameters such as the coking temperature and the like.
Therefore, the importance of the coke oven temperature data is high, but the manually measured data is influenced by various factors such as employee responsibility, operation level, weather and the like, the data acquired every 4 hours has certain difference, and the difference of the data often has certain influence on the process control such as oven temperature regulation and the like.
In addition, the labor intensity of manual measurement is high, the labor efficiency is low, the temperature measurement error is high, the safety problem easily occurs when temperature measuring personnel walk on the coke oven, and under the large environment with strict requirements on energy conservation and environmental protection, the management of the flame path is difficult to promote only by manual measurement, particularly, the method comprises the following defects:
1. the manual temperature measurement of the coke oven requires at least 2 persons, one person is a person for operating the fire observation hole cover to open the fire observation hole cover, the other person is a person for measuring the temperature of the fire observation hole, the fire observation hole cover is closed after the measurement is finished, the operation is complicated, and the labor is wasted;
2. the environmental temperature of the top of the coke oven is up to 70 ℃ in summer, more than 400 observation holes are needed to be measured, 15 minutes is needed to measure the temperature once, and the labor intensity is high;
3. the temperature measurement of the coke oven is manually completed, and the operation is required to depend on personal experience, so that the accuracy varies from person to person;
4. when the temperature measuring personnel carry out the temperature measurement operation on the furnace top, the accident that the temperature measuring personnel are hit by the coal charging car can happen if the coal charging car needs to pay attention to the coming and going of the coal charging car in time;
5. when the temperature measuring instrument is damaged during measurement, the measured data can be completely lost;
6. two people do not cooperate well during manual measurement, because the speed of uncapping is faster than the temperature measurement speed, can lead to uncapping a large amount, violate operating rules.
Disclosure of Invention
The invention aims to provide the automatic temperature measurement robot for the straight movement of the coke oven, which solves the problems of large temperature measurement error and high labor intensity generated in manual temperature measurement and the safety problem of temperature measurement personnel walking on the coke oven, realizes the full-automatic unmanned intervention intellectualization of the straight movement temperature measurement of the coke oven, and improves the automation degree of the temperature measurement of the coke oven.
In order to realize the aim, the coke oven straight-moving automatic temperature measuring robot designed by the invention comprises a coal charging car arranged on the top of a coke oven, and is characterized in that: the fire observation hole at the top of the combustion chamber of the coke oven is provided with a fire observation hole cover, the coal charging car is provided with a cover opening mechanism, the cover opening mechanism comprises a pneumatic control cabinet arranged on the coal charging car and a pneumatic telescopic arm arranged in the vertical direction on the side face of the pneumatic control cabinet through a support, the bottom end of the pneumatic telescopic arm is provided with a cover taking permanent magnet, a lifting driving electromagnetic valve for controlling the telescopic arm to stretch is arranged in the pneumatic control cabinet, a temperature measuring device is further arranged in the pneumatic control cabinet, and the temperature measuring device comprises an infrared temperature measuring probe aligned below the cover taking permanent magnet.
Preferably, a temperature measuring device electronic bin cooling air source is arranged in the pneumatic control cabinet, an air outlet of the temperature measuring device electronic bin cooling air source is aligned with the infrared temperature measuring probe and is used for cooling the infrared temperature measuring probe, and a temperature measuring device cooling wind electromagnetic valve which is used for opening and closing the air outlet of the temperature measuring device electronic bin cooling air source is arranged in the pneumatic control cabinet.
Preferably, obstacle avoidance radars are arranged at the front end and the rear end of the coal charging car, so that the safety distance between the coal charging car and personnel is realized, and the personnel are prevented from being injured when the equipment runs.
Preferably, a control communication device is arranged in the pneumatic control cabinet, the control communication device is connected with the lifting driving electromagnetic valve, the temperature measuring device cooling wind electromagnetic valve and the temperature measuring device, the control communication device is connected with a centralized control center server through a communication network, the control of the robot is realized through the control communication device, and temperature data are uploaded in real time.
Preferably, the centralized control center server is provided with a data analysis system, and automatically generates a related report and a coke pushing plan by combining the temperature data to guide the production of the coke oven vehicle.
Preferably, a human-computer interaction interface device connected with the control communication device is arranged on the coal charging car, so that an operator can conveniently and visually operate the coal charging car to observe whether measurement data are omitted or not.
Preferably, the coal charging car is provided with a camera connected with the control communication device and used for recording the current furnace number.
Compared with the prior art, the invention has the following advantages:
1. the problems of large temperature measurement error and high labor intensity generated in manual temperature measurement and the safety of temperature measurement personnel walking on the coke oven are solved;
2. the full-automatic unattended intelligentization of the coke oven straight-moving temperature measurement is realized, and the automation degree of the coke oven temperature measurement is improved;
3. by uploading data in real time, the problem of measurement data loss caused by damage of a temperature measuring instrument is avoided;
4. the cover opening and closing speed is high, and one cover is opened for measurement, so that the pollution of nitrogen oxides in the furnace to the atmosphere and the temperature drop caused by long cover opening time are reduced.
Drawings
FIG. 1 is a schematic structural view of a coke oven straight-going automatic temperature measurement robot of the invention
FIG. 2 is a flow chart of the coke oven straight automatic temperature measuring robot.
The components in the figures are numbered as follows:
the device comprises a coal charging car 1, a fire observation hole cover 2, a pneumatic control cabinet 3, a support 4, a pneumatic telescopic arm 5, a cover taking permanent magnet 6, a control communication device 7, a lifting driving electromagnetic valve 8, a temperature measuring device 9, an infrared temperature measuring probe 10, a temperature measuring device electronic bin cooling air source 11, an air outlet 12, a temperature measuring device cooling wind electromagnetic valve 13 and an obstacle avoidance radar 14.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in figure 1, the coke oven straight-moving automatic temperature measurement robot comprises a coal charging car 1 installed on the top of a coke oven, barrier-avoiding radars 14 are arranged at the front end and the rear end of the coal charging car 1, fire hole covers 2 are arranged on fire holes in the top of a combustion chamber of the coke oven, a cover opening mechanism is arranged on the coal charging car 1 and comprises a pneumatic control cabinet 3 arranged on the coal charging car 1 and a pneumatic telescopic arm 5 which is installed on the side surface of the pneumatic control cabinet 3 through a support 4 in the vertical direction, a cover taking permanent magnet 6 is arranged at the bottom end of the pneumatic telescopic arm 5, a lifting driving electromagnetic valve 8 for controlling the telescopic arm 5 to stretch is arranged in the pneumatic control cabinet 3, a temperature measurement device 9 is further arranged in the pneumatic control cabinet 3, and the temperature measurement device 9 comprises an infrared temperature measurement probe 10 aligned below the cover taking permanent.
In addition, a temperature measuring device electronic bin cooling air source 11 is arranged in the pneumatic control cabinet 3, an air outlet 12 of the temperature measuring device electronic bin cooling air source 11 is aligned to the infrared temperature measuring probe 10, a temperature measuring device cooling wind electromagnetic valve 13 for opening and closing the temperature measuring device electronic bin cooling air source air outlet 12 is arranged in the pneumatic control cabinet 3, a control communication device 7 is further arranged in the pneumatic control cabinet 3, the control communication device 7 is connected with the lifting driving electromagnetic valve 8, the temperature measuring device cooling wind electromagnetic valve 13 and the temperature measuring device 9, the control communication device 7 is connected with the centralized control center server through a communication network, and the centralized control center server is provided with a data analysis system.
In this embodiment, the action of the cover opening mechanism is completed by elements in the pneumatic control cabinet 3, when a descending command of the pneumatic telescopic boom 5 is reached, the lifting driving solenoid valve 8 opens the descending air passage, and when an ascending command of the pneumatic telescopic boom 5 is reached, the lifting driving solenoid valve 8 opens the ascending air passage. After the pneumatic telescopic arm 5 descends, the cover permanent magnet 6 is taken to attract the fire hole cover 2 through magnetic force, the fire hole cover 2 is lifted, at the moment, the infrared temperature measuring probe 10 of the temperature measuring device 9 is aligned with the fire hole cover 2 to measure the temperature, the measured temperature is transmitted to the control communication device 7, and further transmitted to the centralized control center server. When the coal charging car 1 runs away from the position above the fire hole cover 2, the magnetic force is gradually reduced to disappear, the fire hole cover 2 is closed under the self-gravity, and the pneumatic telescopic arm 5 can be lifted to recover the initial state after all temperature measurement is finished.
In the embodiment, the control communication device 7 is a PLC product and communicates with a PLC network protocol of the coal charging car 1, two sets of control systems are independently installed, through programming configuration, the temperature measurement robot PLC is used as a slave station of the coal charging car PLC, information of a master station of the coal charging car PLC is completely mapped into a memory of the temperature measurement robot PLC, after an operator selects an automatic temperature measurement mode, the functions of the coal charging car are completely stopped by a program of the coal charging car PLC, a temperature measurement mode program is started, instruction issuing of all devices of the coal charging car 1 by the temperature measurement robot PLC is completed, collected data are transmitted to a centralized control center server through a communication network, relevant reports are automatically generated through a coking process model, a coke pushing plan is automatically generated, and production of coke oven vehicles is guided.
As shown in fig. 2, the specific work flow of this embodiment is as follows:
(1) adjusting the working mode of the coal charging car 1 to a temperature measurement mode, wherein a control communication device 7 of the temperature measurement robot communicates with a control device of the coal charging car 1, interrupts a running program of the coal charging car 1, activates the temperature measurement program, and judges whether the coal charging car 1 has a running condition or not;
(2) issuing a temperature measurement instruction, taking over the control authority of the coal charging car 1 by the temperature measurement robot, starting the front and back obstacle avoidance radar 14 of the coal charging car 1, entering a pedestrian protection working mode, and reminding an operator by the man-machine interaction interface device if a pedestrian or an obstacle exists in a measurement area;
(3) when the vehicle runs and stops in case of pedestrians and obstacles;
(4) the control communication device 7 of the robot plans a temperature measuring route according to the current position of the coal charging car 1, and the walking frequency converter of the coal charging car moves forward at a low speed according to the frequency of 15HZ after the planning is finished;
(5) when the mobile furnace runs to a position close to a furnace area, the cover opening mechanism of the pneumatic control cabinet 3 descends, the DCF electromagnetic valve is powered on, the pneumatic telescopic arm 5 of the cover opening mechanism begins to descend, the temperature measuring device of the pneumatic control cabinet 3 cools the wind electromagnetic valve 13, the temperature measuring device 9 begins to be cooled, and the protective cover of the temperature measuring device 9 is opened;
(6) when the coal charging car 1 runs to the position above the observation hole, the cover taking permanent magnet 6 arranged on the coal charging car 1 lifts the observation hole cover 2 under the action of the magnetic field, so that the observation hole is exposed under the temperature measuring device 9;
(7) the temperature measuring device 9 detects high temperature, the robot takes a picture after detecting a high temperature signal, records the measured current temperature and the current furnace number and transmits the current temperature and the current furnace number to the control communication device 7;
(8) the measured temperature data is displayed on a human-computer interaction interface device of the coal charging car 1 through the control communication device 7;
(9) when the coal charging car 1 is about to run away from the fire hole cover 2, the magnetic field force applied to the fire hole cover 2 becomes weaker, and the fire hole cover 2 automatically closes the fire hole cover 2 by means of self weight;
(10) when the vehicle runs to the last temperature measurement number, the measurement is completed, and the robot control communication device 7 issues a return instruction;
(11) the robot control communication device 7 retracts the pneumatic telescopic arm 5 of the cover opening mechanism, closes cooling air and a protective cover of the temperature measuring device 9 and automatically returns to the initial position;
(12) the temperature measurement data cached in the robot control communication device 7 is sent to the centralized control center server through the communication network of the coal charging car 1.
The coke oven straight-moving automatic temperature measurement robot solves the problems of large temperature measurement error and high labor intensity generated in manual temperature measurement and the safety problem of temperature measurement personnel walking on a coke oven; the full-automatic unattended intelligentization of the coke oven straight-moving temperature measurement is realized, and the automation degree of the coke oven temperature measurement is improved; by uploading data in real time, the problem of measurement data loss caused by damage of a temperature measuring instrument is avoided; the invention has the advantages that the cover opening and closing speed is high, one cover is opened for measurement, the atmosphere pollution caused by nitrogen oxides in the furnace and the temperature drop caused by long cover opening time are reduced, the completion conditions of each action of the temperature measuring robot (such as temperature measuring circuit planning action, cover opening action and temperature measuring action) can be clearly seen at the far end through a computer picture, and an emergency stop instruction can be remotely issued when an emergency occurs.
Claims (7)
1. The utility model provides a coke oven craspedodrome automatic temperature measurement robot, is including installing coal charging car (1) at the coke oven roof, its characterized in that: the fire observation hole at the top of the combustion chamber of the coke oven is provided with a fire observation hole cover (2), the coal charging car (1) is provided with a cover opening mechanism, the cover opening mechanism comprises a pneumatic control cabinet (3) arranged on the coal charging car (1) and a pneumatic telescopic arm (5) arranged in the vertical direction on the side face of the pneumatic control cabinet (3) through a support (4), the bottom end of the pneumatic telescopic arm (5) is provided with a cover taking permanent magnet (6), a lifting driving electromagnetic valve (8) for controlling the telescopic arm (5) to start to stretch is arranged in the pneumatic control cabinet (3), a temperature measuring device (9) is further arranged in the pneumatic control cabinet (3), and the temperature measuring device (9) comprises an infrared temperature measuring probe (10) aligned below the cover taking permanent magnet (6).
2. The coke oven straight-going automatic temperature measurement robot of claim 1, which is characterized in that: the pneumatic control cabinet is characterized in that a temperature measuring device electronic bin cooling air source (11) is arranged in the pneumatic control cabinet (3), an air outlet (12) of the temperature measuring device electronic bin cooling air source (11) is aligned to the infrared temperature measuring probe (10), and a temperature measuring device cooling wind electromagnetic valve (13) of the temperature measuring device electronic bin cooling air source air outlet (12) is arranged in the pneumatic control cabinet (3) and is opened and closed.
3. The coke oven straight-going automatic temperature measurement robot of claim 1, which is characterized in that: obstacle avoidance radars (14) are arranged at the front end and the rear end of the coal charging car (1).
4. The coke oven straight-going automatic temperature measurement robot of claim 1, which is characterized in that: the pneumatic control system is characterized in that a control communication device (7) is arranged in the pneumatic control cabinet (3), the control communication device (7) is connected with the lifting driving electromagnetic valve (8), the temperature measuring device cooling wind electromagnetic valve (13) and the temperature measuring device (9), and the control communication device (7) is connected with the centralized control center server through a communication network.
5. The coke oven straight-going automatic temperature measurement robot of claim 4, which is characterized in that: the centralized control center server is provided with a data analysis system.
6. The coke oven straight-going automatic temperature measurement robot of claim 4, which is characterized in that: and a human-computer interaction interface device connected with the control communication device (15) is arranged on the coal charging car (1).
7. The coke oven straight-going automatic temperature measurement robot of claim 4, which is characterized in that: and the coal charging car (1) is provided with a camera connected with the control communication device (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911319169.2A CN111004636A (en) | 2019-12-19 | 2019-12-19 | Automatic temperature measurement robot for straight movement of coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911319169.2A CN111004636A (en) | 2019-12-19 | 2019-12-19 | Automatic temperature measurement robot for straight movement of coke oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111004636A true CN111004636A (en) | 2020-04-14 |
Family
ID=70117137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911319169.2A Pending CN111004636A (en) | 2019-12-19 | 2019-12-19 | Automatic temperature measurement robot for straight movement of coke oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111004636A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378520A (en) * | 2020-11-09 | 2021-02-19 | 刘平亮 | Intelligent temperature measuring device and method for coke oven |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304066A (en) * | 1983-11-28 | 1985-06-17 | Hoogovens Groep Bv | METHOD FOR PREPARING KOOKS. |
| CN2199983Y (en) * | 1994-06-30 | 1995-06-07 | 鲍立威 | Travelling automatic temp. measuring device for coke oven flue |
| CN101078653A (en) * | 2007-07-06 | 2007-11-28 | 太原理工大学 | Coke oven combustion chamber temperature metering system and metering method |
| CN102203573A (en) * | 2008-10-31 | 2011-09-28 | Posco公司 | Apparatus for automatically measuring the temperature of a combustion chamber of a coke oven |
| CN106382991A (en) * | 2016-11-11 | 2017-02-08 | 中冶焦耐自动化有限公司 | Automatic measuring method and automatic measuring system for temperature of vertical flue of coke oven |
| CN107502376A (en) * | 2017-09-25 | 2017-12-22 | 南京沪友冶金机械制造有限公司 | A kind of efficiently automatic coke oven lid device for detecting temperature |
| CN108117875A (en) * | 2016-11-29 | 2018-06-05 | 宝山钢铁股份有限公司 | The detection method that a kind of coke oven coal filling mouth blocks |
-
2019
- 2019-12-19 CN CN201911319169.2A patent/CN111004636A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8304066A (en) * | 1983-11-28 | 1985-06-17 | Hoogovens Groep Bv | METHOD FOR PREPARING KOOKS. |
| US4643803A (en) * | 1983-11-28 | 1987-02-17 | Hoogovens Groep B.V. | Method of making coke in a coke oven battery |
| CN2199983Y (en) * | 1994-06-30 | 1995-06-07 | 鲍立威 | Travelling automatic temp. measuring device for coke oven flue |
| CN101078653A (en) * | 2007-07-06 | 2007-11-28 | 太原理工大学 | Coke oven combustion chamber temperature metering system and metering method |
| CN102203573A (en) * | 2008-10-31 | 2011-09-28 | Posco公司 | Apparatus for automatically measuring the temperature of a combustion chamber of a coke oven |
| CN106382991A (en) * | 2016-11-11 | 2017-02-08 | 中冶焦耐自动化有限公司 | Automatic measuring method and automatic measuring system for temperature of vertical flue of coke oven |
| CN108117875A (en) * | 2016-11-29 | 2018-06-05 | 宝山钢铁股份有限公司 | The detection method that a kind of coke oven coal filling mouth blocks |
| CN107502376A (en) * | 2017-09-25 | 2017-12-22 | 南京沪友冶金机械制造有限公司 | A kind of efficiently automatic coke oven lid device for detecting temperature |
Non-Patent Citations (1)
| Title |
|---|
| 于瑞军等: "《焦炉操作工》", 31 January 2009, 中国矿业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378520A (en) * | 2020-11-09 | 2021-02-19 | 刘平亮 | Intelligent temperature measuring device and method for coke oven |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109835375B (en) | High-speed railway train automatic driving system based on artificial intelligence technology | |
| CN204913887U (en) | Unattended substation indoor tour of protection and reconnaissance robot | |
| CN202333477U (en) | Charging room for intelligent inspection robot of substation | |
| CN203476049U (en) | Magnetic-switch-based automatic door control system for transformer substation inspection robot | |
| CN110617884B (en) | Intelligent coke oven straight-running temperature measurement robot system and temperature measurement control method | |
| CN109534165B (en) | Smelting slag ladle slow cooling treatment scheduling control method | |
| CN105074601A (en) | Automatic guided vehicle and automatic guided vehicle system | |
| CN201753611U (en) | Intelligent monitoring and controlling device for mine ventilation | |
| CN110908380A (en) | Autonomous inspection method and system for cable tunnel robot | |
| CN111004636A (en) | Automatic temperature measurement robot for straight movement of coke oven | |
| CN102063746A (en) | Program-controlled patrol machine and program-controlled patrol method for transformer station | |
| CN111646365A (en) | Unmanned overhead traveling crane control system | |
| CN113556701A (en) | Intelligent monitoring system in pit based on thing networking | |
| CN113379323B (en) | Construction site quality supervision method and system | |
| CN112158236B (en) | Intelligent freight train formation identification control method and system | |
| CN109534164B (en) | Be used for smelting cinder ladle slow cooling to handle scheduling system | |
| CN203499429U (en) | Transformer substation inspection robot automatic door control system based on inductance approach switch | |
| CN113122287A (en) | Online uncovering system and method for coal feeding port of coke oven | |
| CN208559780U (en) | A kind of aircraft berths automatic commanding device | |
| CN210163020U (en) | Be used for smelting slag ladle slow cooling to handle dispatch system | |
| CN202025364U (en) | Programmable control inspection machine for substation | |
| CN115034707A (en) | Intelligent aluminum hydroxide bin storage system | |
| CN213195610U (en) | Automatic control device for steelmaking converter buggy ladle | |
| CN109695365A (en) | A kind of stereo garage management system and management method | |
| CN210939284U (en) | Intelligent inspection robot for building facilities |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200414 |
|
| RJ01 | Rejection of invention patent application after publication |