CN105302052A - Electric control device system for mining elevator and control method thereof - Google Patents
Electric control device system for mining elevator and control method thereof Download PDFInfo
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- CN105302052A CN105302052A CN201510649798.7A CN201510649798A CN105302052A CN 105302052 A CN105302052 A CN 105302052A CN 201510649798 A CN201510649798 A CN 201510649798A CN 105302052 A CN105302052 A CN 105302052A
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005065 mining Methods 0.000 title claims abstract description 11
- 230000005611 electricity Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002828 fuel tank Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011022 operating instruction Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/02—Rod or cable suspensions
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
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- General Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Elevator Control (AREA)
Abstract
The invention discloses an electric control device system for a mining elevator and a control method thereof. The electric control device comprises the components of an elevator motor forward-rotation and backward-rotation operation control part, a frequency converter frequency setting part, a working brake control part, a safety brake control part and a double-wire-system control part. Forward rotation control and backward rotation control on the motor are realized through controlling to a frequency converter for performing forward rotation and backward rotation by a programmable logic controller (PLC). Controlling for the operation speed of the motor is finished through setting the frequency of the frequency converter by the PLC. In a normal operation condition, a braking torque is controlled through a braking handle; and safety braking is performed in emergency. The safety braking is divided into two-stage braking control and one-stage brake control. According to the electric control device system, two PLCs are mounted for realizing simultaneous operation. Operation of the elevator can be safely and reliably controlled. Furthermore production efficiency is effectively improved.
Description
Technical field
The present invention relates to mine hoist control panel field, specifically a kind of mining elevator electric control gear system and control method.
Background technology
Mine hoist system is made up of hoisting conveyance, hoisting cable, cylinder, speed reduction unit, derrick and loading and unloading equipment and dragging motor, control panel and clamping device etc.Hoister is as main transportation equipment, be responsible for carrying material and carrying people,, safety in production efficient to mine and economical operation have extremely important effect, its acceleration in operational process, retarded velocity and have accurate requirement and strict restriction at the stroke of each operation phase and last parking spot.Along with the development of China coal industry, have up to ten thousand ac elevators at present in national colliery in running, wherein equipment component is manually regulable control, and without any protection system, security performance is very poor, easily " driving " accident occurs; Equipment component is come by dropping into dynamic braking when stopping, and when using dynamic braking, if braking moment is not enough, will goes wrong and even cannot stop, causing a hidden trouble to safety in production.Therefore, particularly important to the conservative control of the operation of mine hoist, braking and each association utility appliance, to ensureing that the production of mine, safety and benefit are significant.
Summary of the invention
For solving the problems of the technologies described above, the invention discloses a kind of mining elevator electric control gear system and control method, object is for mine hoist safety is produced, raised the efficiency and provide safeguard.
The technical solution used in the present invention is: a kind of mining elevator electric control gear system and control method, is characterized in that: this electric control gear system run by motor forward and backward control, frequency converter frequency is given, work lock controls, safety brake controls and double wire system controls five parts and forms.
Motor forward and backward run control section comprise: a PLC(101), the 2nd PLC(102), relay one (103), relay two (104), frequency converter (105), motor (106), one PLC(101) the first output point (1011) and the 2nd PLC(102) the first output point (1021) be connected with the control coil (1031) of relay one (103), the normally opened contact (1032) of relay one (103) is connected with the rotating forward control port (1051) of frequency converter (105), one PLC(101) the second output point (1012) and the 2nd PLC(102) the second output point (1022) be connected with the control coil (1041) of relay two (104), the normally opened contact (1042) of relay two (104) is connected with the reversion control port (1052) of frequency converter (105), the drive output (1053) of frequency converter (105) is connected with motor (106).
Frequency converter frequency comprises to certain portions: a PLC(101), the 2nd PLC(102), frequency converter (105).One PLC(101) analog output channel (1013) and the 2nd PLC(102) analog output channel (1023) be connected with the frequency given side (1054) of frequency converter (105).
Work lock control section comprises: brake handle (301), work lock control panel (302), relay three normally opened contact (303), Hydraulic Station (304).Brake handle (301) connects the input end (3021) of work lock control panel (302), and the output terminal (3022) of work lock control panel (302) connects the proportional pressure control valve (305) of Hydraulic Station (304) via relay three normally opened contact (303).
Safety brake control section comprises: relay four normally opened contact (401), the time relay (402), solenoid valve one (403), solenoid valve two (404), solenoid valve the three (405), the one PLC(101), the 2nd PLC(102), relay six (406).Relay four normally opened contact (401) one end and system are just, negative supply connects, the other end is connected with the control coil (4021) of the time relay (402), the control coil (4021) of the time relay (402) is connected with solenoid valve one (403) again, system negative electricity is connected to solenoid valve two (404) and solenoid valve three (405) simultaneously, system positive electricity is connected to solenoid valve two (404) via the contact (4022) of the time relay (402) and the normally closed contact (4063) of relay six (406), the other end of the time relay (402) contact (4022) is connected with solenoid valve three (405), system positive electricity is connected to solenoid valve three (405) via the normally opened contact (4062) of relay six (406), one PLC(101) the 4th output point (1014) and the 2nd PLC(102) the 4th output point (1024) be all connected to the control coil (4061) of relay six (406).
The present invention also provides a kind of control method of mining elevator electric control gear system as follows:
The core of mining elevator electric control gear system is PLC, system control method comprise motor forward and backward run control, the frequency of frequency converter is given, work lock controls, safety brake controls and double wire system controls.
Motor forward and backward is run and is controlled: realize controlling the rotating of motor by the control rotated and reverse of PLC to frequency converter.
Frequency converter frequency is given: by PLC control the frequency of frequency converter given come control to motor travelling speed.
Work lock controls: when normal work, completed the control of braking moment, reach the object of service braking by brake handle.
Safety brake controls: completing safety braking when having an accident, belonging to brake hard, is divided into two stage braking to control and one-level control for brake.Two stage braking is that braking moment is applied on brake disc at twice, namely progressively braking moment is applied on brake disc when there is emergency condition.Braking moment is once applied on brake disc by one-level braking exactly, and relative two stage braking is removed also referred to as two stage braking.During one-level braking, because braking moment is once applied on brake disc, impact must be had to system.Thus, lower in the speed of hoisting conveyance, namely hoisting conveyance just adopts one-level braking close to during well head.
Double wire system controls: the present invention adopts two cover PLC to control, and when normally working, two cover PLC work simultaneously, and two cover protection actions simultaneously, to improve the security of system.When a PLC peripheral circuit comprised corresponding to it goes wrong, complete driving function by the 2nd PLC.
The beneficial effect that technical scheme provided by the invention produces is: the operation of control hoister that can be safe and reliable, once go wrong in operation, can stop safely rapidly, Accident prevention expands further, can effectively enhance productivity.
Accompanying drawing explanation
Fig. 1 is motor positive and inverse control principle drawing.
Fig. 2 is the given schematic diagram of frequency converter frequency.
Fig. 3 is work lock control principle drawing.
Fig. 4 is safety brake control principle drawing.
101. the one PLC in figure, 102. the 2nd PLC, 103. relays one, 104. relay two, 105. frequency converters, 106. motors, 301. brake handles, 302. work lock control panels, 303. relay three normally opened contacts, 304. Hydraulic Stations, 401. relay four normally opened contacts, 402. time relays, 403. solenoid valves one, 404. solenoid valve two, 405. solenoid valve three, 406. relays six.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
This electric control gear system run by motor forward and backward control, frequency converter frequency is given, work lock controls, safety brake controls and double wire system controls five parts and forms.
As shown in Figure 1, motor forward and backward run control section comprise: a PLC(101), the 2nd PLC(102), relay one (103), relay two (104), frequency converter (105), motor (106), one PLC(101) the first output point (1011) and the 2nd PLC(102) the first output point (1021) be connected with the control coil (1031) of relay one (103), the normally opened contact (1032) of relay one (103) is connected with the rotating forward control port (1051) of frequency converter (105), one PLC(101) the second output point (1012) and the 2nd PLC(102) the second output point (1022) be connected with the control coil (1041) of relay two (104), the normally opened contact (1042) of relay two (104) is connected with the reversion control port (1052) of frequency converter (105), the drive output (1053) of frequency converter (105) is connected with motor (106).
When hoister promotes (motor rotating forward), one PLC(101) the first output point (1011) and the 2nd PLC(102) the first output point (1021) drive the control coil (1031) of relay one (103), the normally opened contact (1032) of relay one (103) is closed, rotating forward control port (1051) to frequency converter (105) sends rotating forward operating instruction, and now the driving port (1053) of frequency converter (105) controls motor (106) and rotates forward operation.When hoister is transferred (motor reversal), one PLC(101) the second output point (1012) and the 2nd PLC(102) the second output point (1022) drive the control coil (1041) of relay two (104), the normally opened contact (1042) of relay two (104) is closed, reversion control port (1052) to frequency converter (105) sends reversion operating instruction, and now the driving port (1053) of frequency converter (105) controls motor (106) reversion operation.
As shown in Figure 2, frequency converter frequency comprises to certain portions: a PLC(101), the 2nd PLC(102), frequency converter (105).One PLC(101) analog output channel (1013) and the 2nd PLC(102) analog output channel (1023) be connected with the frequency given side (1054) of frequency converter (105).
The object that frequency converter frequency is given is the control realizing motor speed, that is: the travelling speed of motor (106) be by the frequency of frequency converter (105) given come.One PLC(101) and the 2nd PLC(102) while control motor forward or reverse, also by a PLC(101) analog output channel (1013) and the 2nd PLC(102) analog output channel (1023) come the frequency of frequency converter (105) frequency given side (1054) given.One PLC(101) analog output channel (1013) and the 2nd PLC(102) the analog quantity setting value that exports of analog output channel (1023) be less than the analog quantity maximal value of frequency converter (105) frequency given side (1054); like this when system has voltage fluctuation and the interference from the external world; the data from overflow of frequency converter (105) innernal CPU can not be caused, with the reliability service of protection system due to overvoltage.
As shown in Figure 3, the lock control section that works comprises: brake handle (301), work lock control panel (302), relay three normally opened contact (303), Hydraulic Station (304).Brake handle (301) connects the input end (3021) of work lock control panel (302), and the output terminal (3022) of work lock control panel (302) connects the proportional pressure control valve (305) of Hydraulic Station (304) via relay three normally opened contact (303).
In elevator system, disc-brake carries out accumulation of energy by butterfly spring, and when disc-brake opened by needs, by increasing oil cylinder working-pressure, oil cylinder moves in parallel, and compression butterfly spring makes disc-brake open wide.When oil pressure reduces or disappear, disc-brake relies on the elastic potential energy of butterfly spring, makes brake disc and reel closely connected, and formation braking moment, realizes service braking.
The work lock control section course of work is: the control of work lock has been come by brake handle (301).Regulate the voltage of work lock control panel (302) input terminal (3021) by promoting brake handle (301), work lock control panel (302) by the handle voltage signal obtained by being exported by output terminal (3022) after power amplifier.Relay three is work lock pilot relay, is controlled by PLC, and whether can system works lock open wide and just depend on relay three normally opened contact (303) and close.When relay three normally opened contact (303) closes, work lock control panel (302) output terminal (3022) outputs signal to the proportional pressure control valve control panel (305) of Hydraulic Station (304), proportional pressure control valve control panel (305) is by regulating its gain coefficient and zero-bit, the system residual voltage of comparative example surplus valve and the adjustment of system maximum pressure can be realized, thus the control of lock braking moment of finishing the work.
As shown in Figure 4, safety brake control section comprises: relay four normally opened contact (401), the time relay (402), solenoid valve one (403), solenoid valve two (404), solenoid valve the three (405), the one PLC(101), the 2nd PLC(102), relay six (406).Relay four normally opened contact (401) one end and system are just, negative supply connects, the other end is connected with the control coil (4021) of the time relay (402), the control coil (4021) of the time relay (402) is connected with solenoid valve one (403) again, system negative electricity is connected to solenoid valve two (404) and solenoid valve three (405) simultaneously, system positive electricity is connected to solenoid valve two (404) via the contact (4022) of the time relay (402) and the normally closed contact (4063) of relay six (406), the other end of the time relay (402) contact (4022) is connected with solenoid valve three (405), system positive electricity is connected to solenoid valve three (405) via the normally opened contact (4062) of relay six (406), one PLC(101) the 4th output point (1014) and the 2nd PLC(102) the 4th output point (1024) be all connected to the control coil (4061) of relay six (406).
Safety braking when safety brake controls for having an accident, belongs to brake hard, is divided into two stage braking to control and one-level control for brake.
Two stage braking is that braking moment is applied on brake disc at twice, namely progressively braking moment is applied on brake disc when there is emergency condition.When system running speed is than time very fast, kinetic energy is very large, inertia is also very large, if braking moment is once applied on brake disc, very large impact will be caused to whole system, even can cause disconnected rope to cylindrical drum hoist, wire rope may be caused to skid to friction type winder, hoisting conveyance is out of control, and leads to major accident.
The safety brake control section course of work is: during system worked well, relay four normally opened contact (401) closes, when system generation emergency condition, relay four normally opened contact (401) disconnects, thus control coil (4021) dead electricity of the time relay (402), make solenoid valve one (403) dead electricity conducting immediately, the part oil of Hydraulic Station (304) flows back to fuel tank through solenoid valve one (403), discharges a part of oil pressure.After one section of time delay, contact (4022) action of the time relay (402), is switched to normally opened contact by normally closed contact, thus makes solenoid valve two (404) dead electricity conducting, makes solenoid valve three (405) conduct simultaneously.In Hydraulic Station (304), remaining oil flows back to fuel tank through solenoid valve two (404) and solenoid valve three (405) from oil pipe.Completed the time delay oil return of both sides brake disc oil pipe by solenoid valve two (404) and solenoid valve three (405), thus at twice braking moment is applied on brake disc, achieve two stage braking.
Braking moment is once applied on brake disc by one-level braking exactly, and relative two stage braking is removed also referred to as two stage braking.During one-level braking, because braking moment is once applied on brake disc, must have impact to system, thus the general speed at hoisting conveyance lowers, and namely hoisting conveyance is close to applying one-level braking during well head.
As shown in Figure 4, when one-level is braked, relay four normally opened contact (401) transfers disconnection to, solenoid valve one (403) dead electricity conducting immediately by closed, and the oil of Hydraulic Station (304) flows back to fuel tank through solenoid valve one (403), release oil pressure.Meanwhile, one PLC(101) the 4th output point (1014) and the 2nd PLC(102) the 4th output point (1024) pilot relay six (406) control coil (4061) electric, make relay six (406) normally closed contact (4063) disconnect, normally opened contact (4062) close, thus solenoid valve two (404) dead electricity conducting immediately, solenoid valve three (405) must conduct immediately, the oil return immediately of both sides brake disc oil pipe, thus the one-level braking achieving system.
Double wire system control section: as shown in Fig. 1 ~ Fig. 4, this electric control gear system adopts two PLC to work simultaneously, and two cover protection actions simultaneously, control by a PLC(101) complete, the 2nd PLC(102) complete monitoring function.As a PLC(101) peripheral circuit comprised corresponding to it is when going wrong, by the 2nd PLC(102) carry out driving function.
Claims (2)
1. a mining elevator electric control gear system, is characterized in that: this electric control gear system run by motor forward and backward control, frequency converter frequency is given, work lock controls, safety brake controls and double wire system controls five parts and forms, motor forward and backward run control section comprise: a PLC(101), the 2nd PLC(102), relay one (103), relay two (104), frequency converter (105) and motor (106), one PLC(101) the first output point (1011) and the 2nd PLC(102) the first output point (1021) be connected with the control coil (1031) of relay one (103), the normally opened contact (1032) of relay one (103) is connected with the rotating forward control port (1051) of frequency converter (105), one PLC(101) the second output point (1012) and the 2nd PLC(102) the second output point (1022) be connected with the control coil (1041) of relay two (104), the normally opened contact (1042) of relay two (104) is connected with the reversion control port (1052) of frequency converter (105), the drive output (1053) of frequency converter (105) is connected with motor (106), frequency converter frequency comprises to certain portions: a PLC(101), the 2nd PLC(102), frequency converter (105), one PLC(101) analog output channel (1013) and the 2nd PLC(102) analog output channel (1023) be connected with the frequency given side (1054) of frequency converter (105), work lock control section comprises: brake handle (301), work lock control panel (302), relay three normally opened contact (303), Hydraulic Station (304), brake handle (301) connects the input end (3021) of work lock control panel (302), and the output terminal (3022) of work lock control panel (302) connects the proportional pressure control valve (305) of Hydraulic Station (304) via relay three normally opened contact (303), safety brake control section comprises: relay four normally opened contact (401), the time relay (402), solenoid valve one (403), solenoid valve two (404), solenoid valve the three (405), the one PLC(101), the 2nd PLC(102), relay six (406), relay four normally opened contact (401) one end and system are just, negative supply connects, the other end is connected with the control coil (4021) of the time relay (402), the control coil (4021) of the time relay (402) is connected with solenoid valve one (403) again, system negative electricity is connected electromagnetic valve two (404) and solenoid valve three (405) simultaneously, the contact (4022) of system positive electricity via the time relay (402) and normally closed contact (4063) connected electromagnetic valve two (404) of relay six (406), the other end of the time relay (402) contact (4022) is connected with solenoid valve three (405), system positive electricity is connected to solenoid valve three (405) via the normally opened contact (4062) of relay six (406), one PLC(101) the 4th output point (1014) and the 2nd PLC(102) the 4th output point (1024) be all connected to the control coil (4061) of relay six (406).
2. the control method of mining elevator electric control gear system described in claim 1, is characterized in that: mining elevator electric control gear system control method comprise motor forward and backward run control, the frequency of frequency converter is given, work lock controls, safety brake controls and double wire system controls; Motor forward and backward is run and is controlled: realize controlling the forward and backward of motor to the control that frequency converter rotates and reverse by PLC; Frequency converter frequency is given: by PLC control the frequency of frequency converter given come control to motor travelling speed; Work lock controls: when normal work, completed the control of braking moment, reach the object of service braking by brake handle; Safety brake controls: safety braking is a kind of brake hard, and be divided into two stage braking to control and one-level control for brake, two stage braking is applied at twice on brake disc braking moment, and one-level braking is once applied on brake disc braking moment; Double wire system controls: adopt two cover PLC to control, and when normally working, two cover PLC work simultaneously, and two cover protection actions simultaneously, when a PLC peripheral circuit comprised corresponding to it goes wrong, complete driving function by the 2nd PLC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510649798.7A CN105302052B (en) | 2015-10-10 | 2015-10-10 | A kind of mining elevator electric control gear system and control method |
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| CN201510649798.7A CN105302052B (en) | 2015-10-10 | 2015-10-10 | A kind of mining elevator electric control gear system and control method |
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| CN105302052A true CN105302052A (en) | 2016-02-03 |
| CN105302052B CN105302052B (en) | 2017-10-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110104531A (en) * | 2019-05-21 | 2019-08-09 | 山东东山新驿煤矿有限公司 | Hoister control protection system and control method based on permanent deceleration hydraulic station |
| CN111439695A (en) * | 2020-04-10 | 2020-07-24 | 中信重工开诚智能装备有限公司 | Control system and control method for working gate of variable-torque hydraulic station of elevator |
| CN117142380A (en) * | 2023-10-23 | 2023-12-01 | 中信重工开诚智能装备有限公司 | Electric control automatic driving system of mining elevator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110104531A (en) * | 2019-05-21 | 2019-08-09 | 山东东山新驿煤矿有限公司 | Hoister control protection system and control method based on permanent deceleration hydraulic station |
| CN110104531B (en) * | 2019-05-21 | 2021-10-01 | 山东东山新驿煤矿有限公司 | Elevator control protection system and control method based on constant-deceleration hydraulic station |
| CN111439695A (en) * | 2020-04-10 | 2020-07-24 | 中信重工开诚智能装备有限公司 | Control system and control method for working gate of variable-torque hydraulic station of elevator |
| CN111439695B (en) * | 2020-04-10 | 2024-03-08 | 中信重工开诚智能装备有限公司 | Control system and control method for working gate of variable-torque hydraulic station of elevator |
| CN117142380A (en) * | 2023-10-23 | 2023-12-01 | 中信重工开诚智能装备有限公司 | Electric control automatic driving system of mining elevator |
| CN117142380B (en) * | 2023-10-23 | 2024-02-13 | 中信重工开诚智能装备有限公司 | Electric control automatic driving system of mining elevator |
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| Publication number | Publication date |
|---|---|
| CN105302052B (en) | 2017-10-03 |
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