CN117027953B - Colliery gas concentration detects and safety precaution device - Google Patents
Colliery gas concentration detects and safety precaution device Download PDFInfo
- Publication number
- CN117027953B CN117027953B CN202311196554.9A CN202311196554A CN117027953B CN 117027953 B CN117027953 B CN 117027953B CN 202311196554 A CN202311196554 A CN 202311196554A CN 117027953 B CN117027953 B CN 117027953B
- Authority
- CN
- China
- Prior art keywords
- module
- early warning
- gas
- gas concentration
- signal
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 90
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 238000009792 diffusion process Methods 0.000 claims abstract description 25
- 239000003245 coal Substances 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 38
- 238000005065 mining Methods 0.000 claims description 29
- 238000004458 analytical method Methods 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 18
- 238000011161 development Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 238000005259 measurement Methods 0.000 claims description 12
- 238000004364 calculation method Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000011835 investigation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a coal mine gas concentration detection and safety early warning device, which comprises a main early warning mechanism and an auxiliary early warning mechanism; the main early warning mechanism is used for receiving positioning information and gas concentration information of the auxiliary early warning mechanism; the main early warning mechanism comprises a first mounting box, openings are uniformly formed in the first mounting box in the circumferential direction, and a first gas laser sensor is arranged in the center of the top cover. When the gas release amount at the exploitation place is unlikely to bring safety threat to exploitation personnel, evacuation early warning can not appear, and when the gas release amount bringing safety threat to exploitation personnel appears, effective evacuation planning can also be provided, and gas diffusion safety early warning information and gas concentration safety early warning information can also be provided accordingly, later safety investigation work is facilitated to be implemented in the pit, gas concentration detection can be carried out at different positions of the exploitation area, and more effective early warning can be given when gas leakage occurs.
Description
Technical Field
The invention belongs to the technical field of coal mining safety, and particularly relates to a coal mine gas concentration detection and safety early warning device.
Background
In the mining process of coal mine industry, because the production process is underground operation, the natural conditions are relatively complex, and various complex situations which are unfavorable for mining exist. Because part of the coal mining area is rich in gas, if the gas concentration of the mining area exceeds 1% in the mining process, four major hazards exist in the situation: 1. causing mine fires; 2. explosion can occur, leading to the death of the mine destroyed person; 3. when the concentration is too high, the people can suffer from hypoxia and asphyxia and even die; 4. coal (rock) and gas outburst, destroying and blocking the roadway can occur. Therefore, in the exploitation process, the gas concentration condition of the exploitation area is known in time, and safety early warning is carried out according to the gas concentration condition, so that the method is one of the keys of safety exploitation of underground coal mines.
The publication number is: the invention patent of CN106290743A discloses a coal mine gas concentration detection and safety early warning device, which relates to a data display screen arranged on the outer wall of a central controller, wherein the data display screen is electrically connected with the central controller, the central controller is fixedly arranged on the inner annular wall of a tunnel, a top wall gas concentration detection sensor, an upper gas concentration detection sensor, a lower gas concentration detection sensor and a bottom gas concentration detection sensor are arranged on the inner annular wall of the tunnel, a temperature sensor is arranged on the middle empty wall of the upper gas concentration detection sensor and the lower gas concentration detection sensor, an alarm device is arranged on the inner annular wall of the tunnel, the top wall gas concentration detection sensor, the upper gas concentration detection sensor, the lower gas concentration detection sensor, the bottom gas concentration detection sensor and the temperature sensor are all electrically connected with the central controller, and a gas danger numerical calculation sequence program is arranged in the central controller; according to the top wall gas concentration detection sensor, the upper gas concentration detection sensor, the lower gas concentration detection sensor and the bottom gas concentration detection sensor on the inner annular wall of the tunnel, underground internal gas is subjected to concentration detection and data transmission to the central controller, and as the positions of the gas concentration detection sensors are different, the detected data are more comprehensive, the detected data are transmitted to the central controller in cooperation with the detected temperature sensor data, and under the calculation of an internal gas dangerous value calculation sequence program, the whole value is displayed through six small-size data display screens on the data display screen, and the gas value comparison difference value, the gas concentration value and the temperature value detected by the six position gas concentration detection sensors are respectively displayed. And then, according to the gas dangerous concentration standard, an alarm is controlled by the central controller by utilizing the audio alarm device and the light source alarm device. The safety of underground workers is realized, and the safety of the bodies and lives of the workers is ensured in enough time.
Therefore, the gas concentration condition of the coal mining area can be expected more accurately through a more comprehensive gas concentration acquisition mode and a plurality of gas concentration values, and an alarm is given according to the concentration change condition.
However, in the actual underground coal mining process, if gas leakage alarm occurs, a mining person needs to be informed to withdraw from the underground; if only a small amount of gas contained in the mining place breaking layer is released due to mining, the condition is characterized in that: the gas concentration sensor arranged at the position can output gas concentration signals instantaneously, and the output gas concentration is lower or not when the gas is discharged to other gas concentration sensors under the condition of air dilution because of less gas, but the gas concentration sensed by the gas concentration sensor of the gas which is contacted for the first time is higher, so that the alarm sends out gas leakage alarm signals by combining the judgment of concentration values; in practice, for safety consideration, the mining personnel have to be rapidly notified to evacuate from the pit, after evacuation, the mining personnel are required to be dispatched to examine the underground area by area, after the safety examination is finished, the mining personnel are notified to descend from the pit to be mined, and when more faults exist at the underground mining place, the mining personnel are panicked, and a great deal of manpower cost resources are wasted in personnel evacuation and safety examination work, so that a safety early warning device capable of detecting gas concentration at different positions of the mining area and giving more effective early warning when gas leakage occurs is necessary to be arranged.
Disclosure of Invention
The invention aims to provide a coal mine gas concentration detection and safety early warning device, which aims to solve the problems in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a colliery gas concentration detects and safety precaution device, includes main precaution mechanism and auxiliary precaution mechanism; the main early warning mechanism is used for receiving positioning information and gas concentration information of the auxiliary early warning mechanism;
the main early warning mechanism comprises a first mounting box, openings I are uniformly formed in the first mounting box in the circumferential direction, a top cover is arranged at the top of the first mounting box, a first gas laser sensor is arranged in the center of the top cover, a mounting frame is arranged on the top cover, a mounting cylinder is arranged at the bottom of the first mounting box, a steering mechanism is arranged on the mounting cylinder, a laser range finder is arranged on the steering mechanism, and the steering mechanism is used for driving the laser range finder to rotate in different directions;
the auxiliary early warning mechanism comprises a base, wherein an inserting cone is connected to the central position of the bottom of the base and used for being inserted into the periphery of a mining area, inserting frames are arranged on two sides of the inserting cone, a second mounting box is arranged on the base, holes are uniformly formed in the second mounting box in the circumferential direction, and a second gas laser sensor is arranged at the central position of the top of the second mounting box;
one side of the installation cylinder is provided with a supporting rod, one end of the supporting rod is provided with a mounting plate, a development plate is arranged on the mounting plate, a mounting cover is arranged on the mounting plate, the development plate is positioned in the mounting cover, a gas diffusion analysis module and a self-positioning distance measurement module are arranged on the development plate, the self-positioning distance measurement module is used for combining positioning information of each main early warning mechanism and each auxiliary early warning mechanism to control the steering mechanism to drive the laser range finder to measure distance in the direction of each main early warning mechanism and each auxiliary early warning mechanism, and the gas diffusion analysis module is used for combining measured distance and gas concentration change value to conduct safety analysis.
In order to realize protection of the signal wiring of the gas laser sensor, preferably, a signal end plug of the first gas laser sensor is connected with the signal wiring, the top of the top cover is provided with a first sealing cover, the connection part of the signal end plug of the first gas laser sensor and the signal wiring is positioned in the first sealing cover, and the first signal wiring penetrates out of the first sealing cover and the penetrating-out position is sealed by a sealing ring;
the signal end plug connector of the gas laser sensor II is connected with the signal plug wire II, the top of the mounting box II is provided with a sealing cover II, and the signal plug wire II penetrates out of the sealing cover II and the penetrating-out position is plugged by a sealing ring.
In order to realize driving the laser range finder to rotate the range finding to different directions, preferably, steering mechanism is including setting up the motor one in the mounting cylinder bottom, the rotor shaft of motor one runs through the mounting cylinder and is connected with the strut, be provided with the laser range finder in the strut, one side of strut is provided with motor two, the rotor shaft of motor two runs through the strut and connects on the laser range finder, the opposite side of strut rotates and is provided with the swivel and the fixed setting of swivel at the laser range finder.
In order to match the development board to control the motor steering and the configuration of the number of turns, preferably, one side of the installation cylinder is provided with a cover, a driver group is arranged in the cover and fixedly arranged on the installation cylinder, a main power line of the driver group is connected with a peripheral power supply, and a power control end of the driver group is respectively connected with a first motor controlled end and a second motor controlled end through cables.
In order to obtain positioning information of different main early warning mechanisms and auxiliary early warning mechanisms, preferably, a position sensor II is arranged on one side of the mounting frame, a rear cover is arranged on the laser range finder, a position identifier is arranged on one side of the rear cover, and a position sensor I is arranged at the central position of the base.
In order to more effectively drive the laser range finder to measure the distance between the main early warning mechanism and the auxiliary early warning mechanism, preferably, the self-positioning distance measuring module comprises a positioning signal receiving module and a distance data receiving module, wherein the positioning signal receiving module is used for receiving positioning information sent by each position sensor I and each position sensor II obtained by the position identifier, and the distance data receiving module is used for receiving a distance value output by the laser range finder;
the positioning signal receiving module is in transmission connection with a positioning signal matching module, and the positioning signal matching module is used for carrying out direction comparison matching on each positioning information and the position of the position identifier; the steering revolution number calculating module is in transmission connection with the positioning signal matching module and is used for carrying out steering and revolution number calculation of the first motor and the second motor through the direction comparison matching information obtained by the positioning signal matching module; the steering revolution number calculating module is in transmission connection with a command time period storage module, and the command time period storage module is used for carrying out interval time period arrangement storage on steering and revolution number command signals obtained by the steering revolution number calculating module in a near-to-far mode; the instruction time period storage module is in transmission connection with an instruction output module, and the instruction output module is used for sending the instruction output module to the driver group according to the arrangement mode and the time period interval of the steering and revolution instruction signals stored in the instruction time period storage module;
the distance data receiving module is in transmission connection with a distance data matching module, and the distance data matching module is used for matching each positioning information number to each distance data.
In order to more effectively combine the measured distance with the gas concentration variation value for safety precaution, preferably, the gas diffusion analysis module comprises an interconnection sharing module, wherein the interconnection sharing module is used for temporarily storing gas concentration signals obtained by the first gas laser sensor and the second gas laser sensor; the interconnection sharing module is in transmission connection with a signal receiving module, and the signal receiving module is used for receiving the serial numbers of the gas concentration signals; the signal receiving module is in transmission connection with a gas concentration data conversion module, and the gas concentration data conversion module is used for converting each numbered gas concentration signal into numbered gas concentration data; the gas concentration data conversion module is in transmission connection with a concentration data change analysis module, and is used for arranging the gas concentration data under each group of codes according to a time interval line diagram and carrying out concentration change analysis; the gas concentration data conversion module is in transmission connection with the risk planning module, the distance data matching module and the positioning signal matching module are both in transmission connection with the risk planning module, and the risk planning module is used for calculating gas diffusion safety and gas concentration safety according to gas leakage concentration change information and distance data; the risk planning module is in transmission connection with an early warning signal output module, and the early warning signal output module is used for outputting gas diffusion safety early warning information, gas concentration safety early warning information and evacuation planning judgment information to a peripheral computer in real time.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, through the cooperation of the main early warning mechanism and the auxiliary early warning mechanism, more effective gas leakage safety control of an underground mining area can be realized; under the joint coordination of the steering mechanism and the self-positioning distance measuring module, the required transverse or longitudinal rotation angle condition can be carried out according to the positioning signals, the steering and the rotation number of the laser range finder, which are shot to the gas laser sensor generating the gas concentration signals, can be effectively calculated, are arranged in a delayed manner according to the signals before and after the signals are generated, are sequentially output to the driver group, and are carried out by the driving motor I and the driving motor II, so that the range finder can measure the distance in different directions; and under the common cooperation of the self-positioning distance measurement module and the gas diffusion analysis module, combining the gas concentration data under each group of codes to measure a distance value, and carrying out concentration change analysis to obtain more effective gas diffusion safety early warning information, gas concentration safety early warning information and evacuation planning judgment information.
Therefore, when the gas release amount at the exploitation place does not cause safety threat to exploitation personnel, evacuation early warning can not occur, and when the gas release amount causes safety threat to exploitation personnel, effective evacuation planning can also be provided, gas diffusion safety early warning information and gas concentration safety early warning information can be provided accordingly, later safety investigation work is facilitated to be implemented underground, gas concentration detection can be carried out on different positions of the exploitation area, and more effective early warning can be given when gas leakage occurs.
Drawings
FIG. 1 is a schematic view of a main warning mechanism of the present invention in front elevation cutaway;
FIG. 2 is a schematic view of the auxiliary warning mechanism of the present invention in partial cutaway from the front view;
FIG. 3 is a schematic diagram of the overall structure of the main warning mechanism of the present invention;
FIG. 4 is a schematic diagram of the overall structure of the auxiliary warning mechanism of the present invention;
FIG. 5 is a schematic diagram showing the connection of the gas diffusion analysis module and the self-positioning distance measurement module according to the present invention;
fig. 6 is a schematic diagram of signal connection distribution of a main warning mechanism and an auxiliary warning mechanism according to the present invention.
In the figure: 1 mounting box I, 2 trompil I, 3 top cap, 4 gas laser sensor I, 5 closing cap I, 6 mounting bracket, 7 mounting cylinder, 8 bracing piece, 9 mounting panel, 10 installation cover, 11 development board, 12 motor I, 13 strut, 14 laser rangefinder, 15 motor II, 16 shroud, 17 driver group, 18 back cover, 19 position identifier, 20 base, 21 insertion cone, 22 insertion frame, 23 position sensor I, 24 installation box II, 25 trompil II, 26 gas laser sensor II, 27 closing cap II, 231 position sensor II.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, 2, 3, 4, 5 and 6, a coal mine gas concentration detection and safety early warning device comprises a main early warning mechanism and an auxiliary early warning mechanism; the main early warning mechanism is used for receiving positioning information and gas concentration information of the auxiliary early warning mechanism;
the auxiliary early warning mechanism is arranged at the side part of the exploitation area and is arranged on the underground side wall in a circumferential arrangement mode, and the height of the auxiliary early warning mechanism is 0.5 meter; the main early warning mechanism is installed at a height of 2.5 meters away from the ground and is positioned on the upper part of a space surrounded by the auxiliary early warning mechanism, and because the density of gas is lower than that of air, the gas leaks and diffuses from the underground side wall and then rises to be contacted with the main early warning mechanism, and when the gas release amount is gradually increased, the gas diffusion area is transversely expanded, so that the auxiliary early warning mechanism is contacted with the gas.
The main early warning mechanism comprises a mounting box I1, holes I2 are uniformly formed in the circumferential direction of the mounting box I1, a top cover 3 is screwed on the top of the mounting box I1, a gas laser sensor I4 is screwed in the center position of the top cover 3, a mounting frame 6 is fixed on the top cover 3 through bolts, a wooden cross arm is fixed at the height of 2.6 meters at the top of a mining area, the distance between adjacent main early warning mechanisms is set to 10 meters, and the adjacent main early warning mechanisms penetrate through mounting holes in the top of the mounting frame 6 through screws and are locked on the wooden cross arm; the bottom bolt of the first mounting box 1 is fixedly provided with a mounting cylinder 7, the mounting cylinder 7 is provided with a steering mechanism, the steering mechanism is provided with a laser range finder 14, and the steering mechanism is used for driving the laser range finder 14 to rotate in different directions;
the steering mechanism is used for driving the laser range finder 14 to rotate in different directions, so that the laser range finder 14 can range different positions.
The auxiliary early warning mechanism comprises a base 20, an inserting cone 21 is welded at the center of the bottom of the base 20 and used for being inserted into the periphery of the mining area, inserting frames 22 are welded at two sides of the inserting cone 21, and the auxiliary early warning mechanism can be stably fixed in the periphery of the mining area by driving the inserting cone 21 and the inserting frames 22 into rock soil of the periphery of the mining area; the base 20 is in threaded connection with a second installation box 24, holes 25 are uniformly formed in the second installation box 24 in the circumferential direction, and a second gas laser sensor 26 is fixed at the center of the top of the second installation box 24 through screws;
the left side welding of installation section of thick bamboo 7 has bracing piece 8, the left end welding of bracing piece 8 has mounting panel 9, screw fixation has development board 11 on mounting panel 9, screw fixation has mounting cover 10 and development board 11 is located mounting cover 10 on the mounting panel 9, be provided with gas diffusion analysis module and self-positioning apart from measuring module on the development board 11, self-positioning apart from measuring module is used for combining each main early warning mechanism and auxiliary early warning mechanism positional information and control steering mechanism drives laser range finder 14 to each main early warning mechanism and auxiliary early warning mechanism direction position range finding, gas diffusion analysis module is used for combining measured distance and gas concentration variation value and carries out safety analysis.
Therefore, the self-positioning distance measuring module is used for self-positioning the main early warning mechanism and the auxiliary early warning mechanism which generate the gas concentration data, and the steering mechanism is controlled by the self-positioning information to drive the laser distance measuring instrument 14 to rotate, so that the distance measurement of the main early warning mechanism and the auxiliary early warning mechanism is realized; and the gas diffusion analysis module is used for carrying out safety analysis on the distance value and the gas concentration variation value obtained by the self-positioning distance measurement module and obtaining safety early warning information.
Referring to fig. 1, 2, 3 and 4, a signal end plug of a first gas laser sensor 4 is connected with a signal patch cord 1, a sealing cover 5 is fixed on the top of a top cover 3 by adopting a circumferential screw, a connection part between the signal end plug of the first gas laser sensor 4 and the signal patch cord 1 is positioned in the sealing cover 5, the signal patch cord 1 penetrates out of the sealing cover 5, and the penetrating-out position is sealed by adopting a sealing ring;
the signal end plug connector of the second gas laser sensor 26 is connected with a second signal plug wire, a second sealing cover 27 is fixed on the top of the second mounting box 24 by adopting a circumferential screw, the second signal plug wire penetrates out of the second sealing cover 27, and the penetrating-out position is sealed by adopting a sealing ring;
the sealing ring is made of plastic-steel mud and is used for cementing the plug wire and the sealing cover, so that the signal end plug connector of the gas laser sensor is prevented from being separated from the plug wire, and the signal end plug connector of the gas laser sensor can be protected in a mining area.
Referring to fig. 1 and 4, the steering mechanism includes a first motor 12 fixed at the bottom of the mounting cylinder 7 by bolts, the first motor 12 is a stepping motor, a rotor shaft of the first motor 12 penetrates through the mounting cylinder 7 and is connected with a support frame 13 by interference keys, a laser range finder 14 is arranged in the support frame 13, a second motor 15 is fixed at the front side of the support frame 13 by bolts, the second motor 15 is a stepping motor, a rotor shaft of the second motor 15 penetrates through the support frame 13 and is connected with the front side part of the laser range finder 14 by interference keys, and a rotating shaft is arranged at the rear side of the support frame 13 in a rotating manner and is connected with the rear side part of the laser range finder 14 by interference keys at the front end of the rotating shaft.
When the first motor 12 runs, the bracket 13 can be driven to transversely rotate, and when the second motor 15 runs, the laser range finder 14 can be driven to vertically overturn, so that the laser range finder 14 can range in different directions.
Referring to fig. 1, a cover 16 is screwed on the right side of the mounting cylinder 7, a driver set 17 is screwed in the cover 16, the driver set 17 is screwed on the mounting cylinder 7, and a main power line of the driver set 17 penetrates through the cover 16 and is connected with an external power supply; the driver group 17 is two drivers, and the power control and transmission end of the driver group 17 penetrates through the cover 16 through a cable and is respectively connected with the controlled ends of the motor I12 and the motor II 15, and the controlled ends of the motor I12 and the motor II 15 are provided with isolation covers.
Therefore, when the steering rotation number command is transmitted to the driver group 17, the first motor 12 and the second motor 15 are controlled to operate by the driver group 17 according to the steering rotation number control command.
Referring to fig. 1 and 2, a second position sensor 231 is attached to the right side of the mounting frame 6, a rear cover 18 is screwed to the laser range finder 14, a position identifier 19 is screwed to the left side of the rear cover 18, and a first position sensor 23 is attached to the center of the base 20.
The positioning information displayed in the position identifier 19 by the first position sensor 23 and the second position sensor 231 are respectively provided with different numbers for distinguishing different main pre-warning mechanisms and auxiliary pre-warning mechanisms.
Referring to fig. 5, the self-positioning distance measurement module includes a positioning signal receiving module and a distance data receiving module, where the positioning signal receiving module is configured to receive positioning information sent by each of the first position sensor 23 and the second position sensor 231 obtained by the position identifier 19, and a signal output connection of the position identifier 19 is connected to a signal receiving end of the positioning signal receiving module of the development board 11 through a signal line; the distance data receiving module is used for receiving the distance value output by the laser range finder 14, wherein a signal output line of the laser range finder 14 is connected to a signal receiving end of the distance data receiving module of the development board 11;
the positioning signal receiving module is in transmission connection with a positioning signal matching module, the positioning signal matching module is used for carrying out direction comparison matching on each positioning information and the position of the position identifier 19, the triggering point of the positioning signal matching module is a gas concentration value which is larger than zero, and because each positioning information has different numbers, the position of the position identifier 19 is taken as a positioning base point, the positioning base point is used for defining a three-axis coordinate, front-back, left-right and upper-lower position data information in the positioning information is defined in an X axis, a Y axis and a Z axis of the three-axis coordinate, and according to the situation, the transverse and longitudinal required rotation angles of a target positioning point with the number are calculated, if the gas concentration value is zero, the gas concentration value is not operated; the positioning signal matching module is in transmission connection with a steering revolution calculating module, the steering revolution calculating module is used for carrying out steering and revolution calculation on a first motor 12 and a second motor 15 through the direction comparison matching information obtained by the positioning signal matching module, the operation of the first motor 12 is changed, the transverse steering of the laser range finder 14 nozzle is changed, the operation of the second motor 15 is changed, the longitudinal steering of the laser range finder 14 nozzle is changed, the transverse required rotation angle of a target positioning point is C, the required revolution is C/360r, the longitudinal required rotation angle of the target positioning point is D, and when the required revolution is D/360r, C or D is negative, the steering is anticlockwise, and otherwise clockwise; the steering revolution number calculating module is in transmission connection with a command time period storage module, and the command time period storage module is used for carrying out interval time period arrangement storage on steering and revolution number command signals obtained by the steering revolution number calculating module in a near-to-far mode; the command time period storage module is in transmission connection with a command output module, and a driver signal input end in the driver group 17 is connected with an output end of the command output module on the development board 11 through a signal line; the instruction output module is used for sending the instruction signals to the driver group 17 according to the arrangement mode and the time interval of the steering and rotating number instruction signals stored in the instruction time interval storage module, and further, when one steering and rotating number instruction signal is output and executed, the next steering and rotating number instruction signal is sent out after delaying for 1 second; the arrangement mode of the steering and revolution command signals is that the obtained gas concentration signals are arranged in sequence, and because the positioning signals on the first gas laser sensor 4 and the second gas laser sensor 26 are provided with different numbers, if the gas laser sensor of the number a firstly emits the gas concentration signal and then the gas laser sensor of the number b emits the gas concentration signal, the storage module firstly outputs the steering and revolution command signals of the opposite number a and then the steering and revolution command signals of the opposite number b in the command period.
When the positioning signal matching module is triggered by uploading gas concentration data, positioning information of a gas laser sensor uploading the gas concentration data is intercepted from the positioning signal receiving module, a transverse rotation angle and a longitudinal rotation angle required by coordinate calculation are carried out, rotation numbers and rotation directions of the transverse rotation angle and the longitudinal rotation angle required by the rotation number calculating module are calculated, rotation numbers and rotation directions of a motor I12 and a motor II 15 required to operate are obtained, a command time period storage module stores rotation number and rotation number command signals according to the front-back sequence of uploading the gas concentration data, the command output module sequentially outputs the rotation number and rotation number command signals to the driver group 17, and the motor I12 and the motor II 15 are driven to execute.
The distance data receiving module is in transmission connection with a distance data matching module, a transmission line of the laser range finder 14 penetrates through the rear cover 18 and is connected with an access end of the distance data receiving module on the development board 11, and the distance data matching module is used for matching each positioning information number to each distance data, so that a distance value P output to the risk planning module by the distance data matching module is provided with a number directly related to each positioning information, and the transverse corner with the number and the longitudinal corner with the number obtained by the positioning signal matching module are matched with each other through the number.
Referring to fig. 1, fig. 2, fig. 5 and fig. 6, the gas diffusion analysis module includes an interconnection sharing module, the interconnection sharing module is used for temporarily storing gas concentration signals obtained by the first gas laser sensor 4 and the second gas laser sensor 26, and a transmission line of the first gas laser sensor 4 and the second gas laser sensor 26 is connected with a signal access end of the interconnection sharing module of the development board 11; the interconnection sharing module is in transmission connection with the signal receiving module, and the signal receiving module is used for receiving the serial numbers of the gas concentration signals, the real-time serial numbers and the positioning serial numbers correspond to each other, and the serial numbers have the same characters, so that the matching of the required transverse rotation angle and the required longitudinal rotation angle, the distance value and the gas concentration signals is facilitated; the signal receiving module is in transmission connection with a gas concentration data conversion module, and the gas concentration data conversion module is used for converting each numbered gas concentration signal into numbered gas concentration data; the gas concentration data conversion module is in transmission connection with a concentration data change analysis module, and is used for arranging the gas concentration data under each group of codes according to a time interval line diagram, carrying out concentration change analysis, taking time as a transverse coordinate, taking time intervals as 1s, calculating a difference value for adjacent gas concentration data, and analyzing the times L which are more than 1% in 20 second time intervals (s% -r%) if the gas concentration data before 1s are r% and the gas concentration data after 1s are s%; wherein, the bottom danger number of times: l is less than 4, and the number of times of danger is obtained: the larger the number of times L is, the higher the gas excitation increment is, and in addition, the recording of the occurrence time difference I and the total occurrence amount O of the gas concentration data U with the matching of the two 231 positioning information numbers of the position sensors is carried out; the gas concentration data conversion module is in transmission connection with the risk planning module, the distance data matching module and the positioning signal matching module are both in transmission connection with the risk planning module, the risk planning module is used for calculating gas diffusion safety and gas concentration safety according to gas leakage concentration change information and distance data, a plurality of auxiliary early warning mechanisms of adjacent three main early warning mechanisms and auxiliary three auxiliary early warning mechanisms are defined as unit transition areas, if gas leakage points occur in the unit transition areas, a sudden increase gas release speed P/I is calculated, the underground ventilation wind speed is set to be E, if (P/I) is more than or equal to 2E, O is more than or equal to 2, and L is more than or equal to 4, at the moment, the gas excitation increment is higher, and expected high positions exist for the sudden increase gas release speed and persistence, so that the sudden increase gas release speed P/I is defined as a rapid evacuation signal required by a mining whole person; if (P/I) is not less than 2×e, o is not more than 1, and L is not more than 4, the gas excitation amount is not high, and although the burst gas release rate is high, the persistence is not strong, so the burst gas release rate is defined as a zone evacuation signal: the miner near the gas leakage point is evacuated to a non-leakage point for waiting, but the number B of unit transition areas of the gas leakage point is more than or equal to 3 within 10 minutes, namely, a rapid evacuation signal of the whole person is defined; the rest, delineated as the signal to be observed. The risk planning module is in transmission connection with an early warning signal output module, a signal access end of the early warning signal output module of the development board 11 is connected with a peripheral computer through a signal line and forms an interactive agreement with the peripheral computer, the early warning signal output module is used for outputting gas diffusion safety early warning information, gas concentration safety early warning information and evacuation planning judgment information to the peripheral computer in real time, wherein the gas diffusion safety early warning information is a (P/I) value, an O value and a B value which are uploaded in real time, the gas concentration safety early warning information is an L value, the safety monitoring personnel can know the gas leakage condition of an underground mining area in real time before and after a gas leakage event occurs, and the safety monitoring personnel can more conveniently discharge Cha Wasi leakage areas targeted to safety investigation personnel after evacuating the mining area; and when the safety monitoring personnel acquire the evacuation plan judgment information to be a partial evacuation or a complete person evacuation, notifying the personnel of the evacuation through the interphone.
The working principle of this embodiment is as follows:
the main early warning mechanism and the auxiliary early warning mechanism: each main early warning mechanism is used for detecting the gas concentration in the upper space, and a plurality of auxiliary early warning mechanisms are arranged on the underground side wall, so that more effective gas leakage safety control of an underground mining area can be realized;
steering mechanism and self-positioning distance measuring module: after the positioning signal matching module is triggered by uploading the gas concentration data, positioning information of the gas laser sensor is intercepted from the positioning signal receiving module, a transverse rotation angle and a longitudinal rotation angle required by coordinate calculation are carried out, the rotation number and the rotation direction of the transverse rotation angle and the longitudinal rotation angle required by coordinate calculation are calculated by the rotation number calculation module, the rotation number and the rotation direction required by operation of the first motor 12 and the second motor 15 are obtained, the rotation number and the rotation direction required by the rotation number and rotation direction required by the rotation number are stored by the instruction period storage module according to the front-back sequence of uploading the gas concentration data, the instruction signals of the rotation number and the rotation number are sequentially output to the driver group 17 by the instruction output module, the first motor 12 and the second motor 15 are driven to be executed, the first motor 12 is driven to transversely rotate, and the second motor 15 is driven to vertically overturn the laser range finder 14 when being operated, so that the laser range finder 14 is used for measuring the distance of an adjacent main early warning mechanism and an auxiliary early warning mechanism at the lower part to obtain a gas emission distance;
a self-positioning distance measurement module and a gas diffusion analysis module: the gas concentration signals obtained by the first gas laser sensor 4 and the second gas laser sensor 26 are temporarily stored through the interconnection sharing module, the signal receiving module is used for numbering and receiving the gas concentration signals, the gas concentration data conversion module is used for converting the gas concentration signals with numbers into gas concentration data with numbers, then the gas concentration data conversion module is used for combining the gas concentration data under each group of numbers with the self-positioning distance measurement module to measure distance values, the distance values are arranged according to a time interval line diagram, and concentration change analysis is carried out, so that more effective gas diffusion safety early warning information, gas concentration safety early warning information and evacuation planning judgment information are obtained.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
Claims (3)
1. The utility model provides a colliery gas concentration detects and safety precaution device which characterized in that: the system comprises a main early warning mechanism and an auxiliary early warning mechanism; the main early warning mechanism is used for receiving positioning information and gas concentration information of the auxiliary early warning mechanism;
the main early warning mechanism comprises a first mounting box (1), holes (2) are uniformly formed in the first mounting box (1) in a circumferential direction, a top cover (3) is arranged at the top of the first mounting box (1), a first gas laser sensor (4) is arranged at the center of the top cover (3), a mounting frame (6) is arranged on the top cover (3), a mounting cylinder (7) is arranged at the bottom of the first mounting box (1), a steering mechanism is arranged on the mounting cylinder (7), a laser range finder (14) is arranged on the steering mechanism, and the steering mechanism is used for driving the laser range finder (14) to rotate in different directions;
the auxiliary early warning mechanism comprises a base (20), wherein the bottom center position of the base (20) is connected with an inserting cone (21) and the inserting cone (21) is used for being inserted into the periphery of a mining area, inserting frames (22) are arranged on two sides of the inserting cone (21), a second installation box (24) is arranged on the base (20), holes (25) are uniformly formed in the second installation box (24) in the circumferential direction, and a second gas laser sensor (26) is arranged at the top center position of the second installation box (24);
one side of the installation cylinder (7) is provided with a support rod (8), one end of the support rod (8) is provided with an installation plate (9), a development plate (11) is arranged on the installation plate (9), an installation cover (10) is arranged on the installation plate (9), the development plate (11) is positioned in the installation cover (10), a gas diffusion analysis module and a self-positioning distance measurement module are arranged on the development plate (11), the self-positioning distance measurement module is used for combining positioning information of each main early warning mechanism and each auxiliary early warning mechanism to control a steering mechanism to drive a laser range finder (14) to measure distance to the direction positions of each main early warning mechanism and each auxiliary early warning mechanism, and the gas diffusion analysis module is used for carrying out safety analysis by combining measured distance and gas concentration change values;
one side of the mounting cylinder (7) is provided with a cover cap (16), a driver group (17) is arranged in the cover cap (16), the driver group (17) is fixedly arranged on the mounting cylinder (7), a main power line of the driver group (17) is connected with a peripheral power supply, and a power supply control and transmission end of the driver group (17) is respectively connected with a first motor (12) and a second motor (15) control end through cables;
a second position sensor (231) is arranged on one side of the mounting frame (6), a rear cover (18) is arranged on the laser range finder (14), a position identifier (19) is arranged on one side of the rear cover (18), and a first position sensor (23) is arranged at the central position of the base (20);
the self-positioning distance measurement module comprises a positioning signal receiving module and a distance data receiving module, wherein the positioning signal receiving module is used for receiving positioning information sent by each position sensor I (23) and each position sensor II (231) obtained by the position identifier (19), and the distance data receiving module is used for receiving a distance value output by the laser range finder (14);
the positioning signal receiving module is in transmission connection with a positioning signal matching module, and the positioning signal matching module is used for carrying out direction comparison matching on each positioning information and the position of the position identifier (19); the positioning signal matching module is in transmission connection with a steering revolution calculating module, and the steering revolution calculating module is used for carrying out steering and revolution calculation on a first motor (12) and a second motor (15) through the direction comparison matching information obtained by the positioning signal matching module; the steering revolution number calculating module is in transmission connection with a command time period storage module, and the command time period storage module is used for carrying out interval time period arrangement storage on steering and revolution number command signals obtained by the steering revolution number calculating module in a near-to-far mode; the instruction time period storage module is in transmission connection with an instruction output module, and the instruction output module is used for sending the instruction output module to the driver group (17) according to the arrangement mode and the time period interval of the steering and revolution instruction signals stored in the instruction time period storage module;
the distance data receiving module is in transmission connection with a distance data matching module, and the distance data matching module is used for matching each positioning information number to each distance data;
the gas diffusion analysis module comprises an interconnection sharing module, wherein the interconnection sharing module is used for temporarily storing gas concentration signals obtained by a first gas laser sensor (4) and a second gas laser sensor (26); the interconnection sharing module is in transmission connection with a signal receiving module, and the signal receiving module is used for receiving the serial numbers of the gas concentration signals; the signal receiving module is in transmission connection with a gas concentration data conversion module, and the gas concentration data conversion module is used for converting each numbered gas concentration signal into numbered gas concentration data; the gas concentration data conversion module is in transmission connection with a concentration data change analysis module, and is used for arranging the gas concentration data under each group of codes according to a time interval line diagram and carrying out concentration change analysis; the gas concentration data conversion module is in transmission connection with the risk planning module, the distance data matching module and the positioning signal matching module are both in transmission connection with the risk planning module, and the risk planning module is used for calculating gas diffusion safety and gas concentration safety according to gas leakage concentration change information and distance data; the risk planning module is in transmission connection with an early warning signal output module, and the early warning signal output module is used for outputting gas diffusion safety early warning information, gas concentration safety early warning information and evacuation planning judgment information to a peripheral computer in real time.
2. The coal mine gas concentration detection and safety pre-warning device according to claim 1, wherein: the signal end plug connector of the first gas laser sensor (4) is connected with the first signal plug wire, the top of the top cover (3) is provided with a first sealing cover (5), the joint of the signal end plug connector of the first gas laser sensor (4) and the first signal plug wire is positioned in the first sealing cover (5), and the first signal plug wire penetrates out of the first sealing cover (5) and the penetrating-out position is sealed by a sealing ring;
the signal end plug connector of the gas laser sensor II (26) is connected with the signal plug wire II, the top of the mounting box II (24) is provided with a sealing cover II (27), and the signal plug wire II penetrates out of the sealing cover II (27) and the penetrating-out position is plugged by a sealing ring.
3. The coal mine gas concentration detection and safety pre-warning device according to claim 1, wherein: the steering mechanism comprises a first motor (12) arranged at the bottom of the mounting cylinder (7), a rotor shaft of the first motor (12) penetrates through the mounting cylinder (7) and is connected with a support frame (13), a laser range finder (14) is arranged in the support frame (13), a second motor (15) is arranged on one side of the support frame (13), the rotor shaft of the second motor (15) penetrates through the support frame (13) and is connected to the laser range finder (14), and a rotating shaft is arranged on the other side of the support frame (13) in a rotating mode and is fixedly arranged on the laser range finder (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311196554.9A CN117027953B (en) | 2023-09-18 | 2023-09-18 | Colliery gas concentration detects and safety precaution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311196554.9A CN117027953B (en) | 2023-09-18 | 2023-09-18 | Colliery gas concentration detects and safety precaution device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117027953A CN117027953A (en) | 2023-11-10 |
| CN117027953B true CN117027953B (en) | 2024-03-12 |
Family
ID=88633950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311196554.9A Active CN117027953B (en) | 2023-09-18 | 2023-09-18 | Colliery gas concentration detects and safety precaution device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117027953B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1257242A1 (en) * | 1985-05-12 | 1986-09-15 | Конотопский Ордена Трудового Красного Знамени Электромеханический Завод "Красный Металлист" | Unit for testing and setting mine methane alarms |
| CN203835461U (en) * | 2014-04-01 | 2014-09-17 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Chute turn monitor |
| CN206816304U (en) * | 2017-06-29 | 2017-12-29 | 李贺 | A kind of real-time gas management holder device of coal mining |
| CN107701238A (en) * | 2017-11-13 | 2018-02-16 | 中煤科工集团重庆研究院有限公司 | A kind of coal and gas prominent prior-warning device and method |
| CN109538298A (en) * | 2018-11-15 | 2019-03-29 | 河南工程学院 | A kind of multi-functional mine gas warning device |
| CN111089944A (en) * | 2020-01-03 | 2020-05-01 | 江西虔研科技咨询有限公司 | Method and device for measuring underground air quality of tungsten ore |
| CN111911234A (en) * | 2020-07-30 | 2020-11-10 | 安徽理工大学 | Accurate collection of colliery sample and gas early warning robot system |
| KR20210025911A (en) * | 2019-08-28 | 2021-03-10 | (주)오픈웍스 | Multi-purpose movable monitoring apparatus |
| WO2021143591A1 (en) * | 2020-01-19 | 2021-07-22 | 京东数科海益信息科技有限公司 | Environmental testing method, device and system |
| CN113217108A (en) * | 2021-06-03 | 2021-08-06 | 宁夏回族自治区矿产地质调查院 | Early warning system for coal and gas outburst monitoring |
| CN115308263A (en) * | 2022-07-27 | 2022-11-08 | 王江超 | Coal mine early warning experimental equipment |
| CN115355950A (en) * | 2022-09-02 | 2022-11-18 | 中煤科工集团重庆研究院有限公司 | Real-time monitoring equipment for preventing and controlling coal and gas outburst in underground coal mine and components thereof |
-
2023
- 2023-09-18 CN CN202311196554.9A patent/CN117027953B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1257242A1 (en) * | 1985-05-12 | 1986-09-15 | Конотопский Ордена Трудового Красного Знамени Электромеханический Завод "Красный Металлист" | Unit for testing and setting mine methane alarms |
| CN203835461U (en) * | 2014-04-01 | 2014-09-17 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Chute turn monitor |
| CN206816304U (en) * | 2017-06-29 | 2017-12-29 | 李贺 | A kind of real-time gas management holder device of coal mining |
| CN107701238A (en) * | 2017-11-13 | 2018-02-16 | 中煤科工集团重庆研究院有限公司 | A kind of coal and gas prominent prior-warning device and method |
| CN109538298A (en) * | 2018-11-15 | 2019-03-29 | 河南工程学院 | A kind of multi-functional mine gas warning device |
| KR20210025911A (en) * | 2019-08-28 | 2021-03-10 | (주)오픈웍스 | Multi-purpose movable monitoring apparatus |
| CN111089944A (en) * | 2020-01-03 | 2020-05-01 | 江西虔研科技咨询有限公司 | Method and device for measuring underground air quality of tungsten ore |
| WO2021143591A1 (en) * | 2020-01-19 | 2021-07-22 | 京东数科海益信息科技有限公司 | Environmental testing method, device and system |
| CN111911234A (en) * | 2020-07-30 | 2020-11-10 | 安徽理工大学 | Accurate collection of colliery sample and gas early warning robot system |
| CN113217108A (en) * | 2021-06-03 | 2021-08-06 | 宁夏回族自治区矿产地质调查院 | Early warning system for coal and gas outburst monitoring |
| CN115308263A (en) * | 2022-07-27 | 2022-11-08 | 王江超 | Coal mine early warning experimental equipment |
| CN115355950A (en) * | 2022-09-02 | 2022-11-18 | 中煤科工集团重庆研究院有限公司 | Real-time monitoring equipment for preventing and controlling coal and gas outburst in underground coal mine and components thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117027953A (en) | 2023-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107290343B (en) | Visual physical simulation test system for coal and gas outburst dynamic disaster | |
| CN111648826B (en) | Coal mine rock burst prediction early warning system and method | |
| CN110541731B (en) | Robot and method for intelligently monitoring and evaluating unsealing dangerous gas source of closed roadway of coal mine | |
| EP3505724B1 (en) | Method for monitoring vibration and strain of key parts of tunnel boring machine | |
| CN102253429B (en) | Full-automatic air sounding equipment | |
| CN105179017B (en) | Displacement strains anchor pole Integrated Early Warning System | |
| CN209855792U (en) | Shield tunnel safety monitoring device based on BIM | |
| CN106437731A (en) | Pre-warning dual-shield TBM | |
| CN117027953B (en) | Colliery gas concentration detects and safety precaution device | |
| CN108389353A (en) | Three-dimensional forest fireproofing early warning system | |
| CN115880862A (en) | Mine tunnel collapse real-time early warning method and system based on 5G and big data | |
| CN111335951B (en) | Monitoring method of mining roadway instability monitoring device | |
| CN106087935B (en) | A kind of Foundation Pit dynamic on-line monitoring prior-warning device and monitoring method | |
| CN215061352U (en) | Oil gas gathering and transportation gas detection device | |
| CN213360101U (en) | Water and soil pressure monitor and water and soil pressure monitoring system for shield machine | |
| JP2012235200A (en) | Emergency stop system of working device, emergency stop device and working device | |
| CN108661717A (en) | A kind of outdoor spontaneous combustionof coal early warning system | |
| CN205898671U (en) | Infrared carbon dioxide sensor | |
| CN201210043Y (en) | Top board displacement monitor for mining | |
| Roman et al. | Development of Position System of a Roadheader on a Base of Active IR-sensor | |
| CN206132639U (en) | Hot power disaster flue gas of mine stretchs video monitoring system | |
| CN111721912B (en) | Device and method for rapidly measuring gas pressure and gas content of coal seam | |
| CN210566616U (en) | System for detecting corner state of air-locking flap valve by using stay cord displacement sensor | |
| CN107091116A (en) | Tunnel construction disaster synchronous monitoring warning device and its application method | |
| CN210003917U (en) | System for monitoring corner state of air-locking flap valve by using laser displacement sensor |
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 |