CN105483756A - Power-failure short-circuit discharge device for extra-large direct-current power supply loop bridging bus and operating method for power-failure short-circuit discharge device - Google Patents
Power-failure short-circuit discharge device for extra-large direct-current power supply loop bridging bus and operating method for power-failure short-circuit discharge device Download PDFInfo
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- CN105483756A CN105483756A CN201510966473.1A CN201510966473A CN105483756A CN 105483756 A CN105483756 A CN 105483756A CN 201510966473 A CN201510966473 A CN 201510966473A CN 105483756 A CN105483756 A CN 105483756A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/16—Electric current supply devices, e.g. bus bars
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- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
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Abstract
The invention discloses a power-failure short-circuit discharge device for an electrolytic-aluminum-series extra-large direct-current power supply loop bridging bus. The power-failure short-circuit discharge device comprises an electrolytic aluminum power supply direct-current large bus, a bridging bus power inlet end and a power outlet end, wherein a bridging bus short-circuit port is arranged between the power inlet end and the power outlet end; the two sides of the bridging bus short-circuit port are in parallel provided with discharge copper conductors; and two contactors and a discharge resistor are in series connected between the discharge copper conductors. When the power-failure short-circuit discharge device normally works, the bridging bus short-circuit port is in a closed state; after power failure, the two contactors are in compression joint to the bridging bus power inlet and the power outlet end through the discharge copper conductors, remote operation is carried out for short-circuit discharge, and the next production process is carried out when the bridging bus short-circuit port is completely free from voltage. The power-failure short-circuit discharge device is simple in structure, is easy to implement, can be realized by modifying on current equipment, and can ensure electrolytic-aluminum-series buses, power supply equipment as well as personal safety of as an operator, thereby filling up the technical blank of continuous power-failure short-circuit discharge operation of the electrolytic-aluminum-series extra-large direct-current power supply loop bridging bus.
Description
Technical field:
The present invention relates to a kind of Electrolytic Aluminum Series especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device and working method, belong to electrolytic aluminum DC supply technical field.
Background technology:
In Aluminium Electrolysis process, at the electrolyzer production period that whole series is run, during segmentation stoppage in transit electrolyzer, serial volts DS is general all at more than 1500V, and electric current is all at more than 400KA.After disconnection passage is passed a bridge, gap bridge short-circuit opening actual measurement galvanic current reduces to 0KA substantially, but volts DS still has hundreds of volt, and operative employee cannot carry out direct control short-circuit opening.
Electrolytic Aluminum System direct current power supply loop gap bridge bus is after power failure, there is remaining voltage, be equivalent to all electrolyzers in the loop and form a huge electric capacity, store a large amount of electric energy, external electric discharge, if repeatedly do not connect electric discharge to eliminate, directly carry out short circuit, there will be higher remaining voltage short-circuit current, produce serious spark phenomenon, not only can break gap bridge short-circuit opening electrolysis, cause fatal arc light sudden sprain and heat wave to drink wound to staff simultaneously, serious consequence can be caused.Therefore, Highway in Electrolytic Aluminium Production System is badly in need of exploitation dedicated operations method and equipment, meets urgent segmentation in Aluminium Electrolysis process and stops groove needs.
Summary of the invention:
Technical problem to be solved by this invention is: overcome the deficiencies in the prior art, a kind of Electrolytic Aluminum Series especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device and working method are provided, stop groove needs for meeting urgent segmentation in Aluminium Electrolysis process technical guarantee is provided.
The technical scheme that the present invention takes for technical solution problem is:
A kind of especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device, comprise the large bus of electrolytic aluminum supplying DC (1,8), gap bridge bus current enter (3) and gap bridge bus current output terminal (9), between described gap bridge bus current enter (3) and gap bridge bus current output terminal (9), be provided with gap bridge bus short-circuit opening (2); Described gap bridge bus short-circuit opening (2) both sides are connected in parallel to electric discharge copper conductor (4), have been arranged in series two contactors (5,6) and a discharging resistance (7) in the middle of described electric discharge copper conductor (4).
The working method of described especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device, its concrete operation step is as follows:
1. when Electrolytic Aluminum Series normally works, the electric current of more than 400KA flowed into gap bridge bus current output terminal (9) by described gap bridge bus current enter (3) through gap bridge bus short-circuit opening (2) from last workshop section and arrives next workshop section, and gap bridge bus short-circuit opening (2) is in closing condition;
2. after Electrolytic Aluminum Series has a power failure, two contactors (5, 6) both sides of gap bridge bus current enter (3) and gap bridge bus current output terminal (9) are crimped onto respectively by electric discharge copper conductor (4), pass through remote control, the start button (11) of first crawl contactor (5), make the hot-wire coil of contactor (5) (13) charged, contactor (5) is started working, now voltage is between 300 ~ 350V, discharging resistance (7) is started working, consume remaining electric energy, after 1 ~ 3 minute to be discharged, controlled discharge time and number of times is come by cut-off button (10), after then testing gap bridge bus short-circuit opening (2) voltage, the start button (12) of crawl contactor (6), make the hot-wire coil of contactor (6) (14) charged, contactor (6) is started working, now voltage is between 0 ~ 20V, after measuring gap bridge bus current enter (3) and gap bridge bus current output terminal (9) no-voltage by volt ohm-milliammeter, remove discharge line and device,
3. again test, after guaranteeing the complete no-voltage of gap bridge bus short-circuit opening (2), enter down one production process.
Positive beneficial effect of the present invention is as follows:
1, principle of design scientific and precise of the present invention, calculate impact and compressive strength that accurate, to fully take into account chemical capacitor after having a power failure high voltage grade and electric discharge produce, structure is simple, cost is lower, easily implement.
2, the present invention can reequip on existing equipment, can guarantee the personnel safety of Electrolytic Aluminum Series bus and power-supply unit and operator.
3, the present invention has filled up the technological gap of Electrolytic Aluminum Series especially big direct current power supply loop gap bridge bus power failure short circuit continuous discharge working method and equipment, the originally traditional measures taked of aluminum electrolysis industry, all without the extensive conductor through calculating with simple, direct overlap joint gap bridge bus short-circuit opening carries out short circuit electric discharge, safety performance and engineering reliability lower.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the secondary circuits control chart of Fig. 1.
Embodiment:
Below in conjunction with the drawings and specific embodiments, the present invention is made further explanation and description:
See figures.1.and.2, parts in figure represented by each sequence number are respectively: the large bus of 1---electrolytic aluminum supplying DC, 2---gap bridge bus short-circuit opening, 3---gap bridge bus current enter, 4---discharges copper conductor, 5---contactor, 6---contactor, 7---discharging resistance, the large bus of 8---electrolytic aluminum supplying DC, 9---gap bridge bus current output terminal, 10---cut-off button, the start button of 11---contactor 5, the start button of 12---contactor 6, the hot-wire coil of 13---contactor 5, the hot-wire coil of 14---contactor 6, the normally opened contact of 15---contactor 5, the normally opened contact of 16---contactor 6, 17---control loop power supply, 18---control loop power supply.
Embodiment: a kind of especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device, comprise the large bus 1 and 8 of electrolytic aluminum supplying DC at two ends, gap bridge bus current enter 3 and gap bridge bus current output terminal 9, between gap bridge bus current enter 3 and gap bridge bus current output terminal 9, be provided with gap bridge bus short-circuit opening 2; Be connected in parallel to electric discharge copper conductor 4 in gap bridge bus short-circuit opening 2 both sides, in the middle of electric discharge copper conductor 4, be arranged in series two contactors 5 and 6 and a discharging resistance 7.
The working method of especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device recited above, its concrete operation step is as follows:
1., when Electrolytic Aluminum Series normally works, the electric current of more than 400KA flowed into gap bridge bus current output terminal 9 by described gap bridge bus current enter 3 through gap bridge bus short-circuit opening 2 from last workshop section and arrives next workshop section, and now gap bridge bus short-circuit opening 2 is in closing condition;
2. after Electrolytic Aluminum Series has a power failure, two contactors 5 and 6 are crimped onto the both sides of gap bridge bus current enter 3 and gap bridge bus current output terminal 9 respectively by electric discharge copper conductor 4, pass through remote control, the start button 11 of first crawl contactor 5, make the hot-wire coil 13 of contactor 5 charged, contactor 5 is started working, now voltage is between 300 ~ 350V, discharging resistance 7 is started working, consume remaining electric energy, after 1 ~ 3 minute to be discharged, controlled discharge time and number of times is come by cut-off button 10, after the voltage of test gap bridge bus short-circuit opening 2 is qualified, the start button 12 of crawl contactor 6, make the hot-wire coil 14 of contactor 6 charged, contactor 6 is started working, now voltage is between 0 ~ 20V, after measuring gap bridge bus current enter 3 and gap bridge bus current output terminal 9 no-voltage by volt ohm-milliammeter, remove discharge line and device,
3. again test, after guaranteeing the complete no-voltage of gap bridge bus short-circuit opening 2, enter down one production process.
Principle of design scientific and precise of the present invention, calculate accurate, fully take into account power failure after the high voltage grade of chemical capacitor and the impact that produces of electric discharge and compressive strength.Structure is simple, cost is lower, easily implements.This method carries out professional training to professional electrician, equips and mechanical skill strength complete independently electric by intra-company.The personnel safety of Electrolytic Aluminum Series bus and power-supply unit and operator guaranteed by present method and equipment.The present invention has filled up the blank of Electrolytic Aluminum Series especially big direct current power supply loop gap bridge bus power failure short circuit continuous discharge working method and equipment, is a kind of outstanding technical contribution to industry.
The impact that principle of design scientific and precise of the present invention, calculating precision, the high voltage grade fully taking into account chemical capacitor after having a power failure and electric discharge produce and compressive strength, structure is simple, cost is lower, easily implement, existing equipment can have been reequiped, the personnel safety of Electrolytic Aluminum Series bus and power-supply unit and operator can be guaranteed, filled up the technological gap of Electrolytic Aluminum Series especially big direct current power supply loop gap bridge bus power failure short circuit continuous discharge working method and equipment.
Claims (2)
1. one kind especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device, comprise the large bus of electrolytic aluminum supplying DC (1,8), gap bridge bus current enter (3) and gap bridge bus current output terminal (9), it is characterized in that: between described gap bridge bus current enter (3) and gap bridge bus current output terminal (9), be provided with gap bridge bus short-circuit opening (2); Described gap bridge bus short-circuit opening (2) both sides are connected in parallel to electric discharge copper conductor (4), have been arranged in series two contactors (5,6) and a discharging resistance (7) in the middle of described electric discharge copper conductor (4).
2. the working method of especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device according to claim 1, its concrete operation step is as follows:
1. when Electrolytic Aluminum Series normally works, the electric current of more than 400KA flowed into gap bridge bus current output terminal (9) by described gap bridge bus current enter (3) through gap bridge bus short-circuit opening (2) from last workshop section and arrives next workshop section, and gap bridge bus short-circuit opening (2) is in closing condition;
2. after Electrolytic Aluminum Series has a power failure, two contactors (5, 6) both sides of gap bridge bus current enter (3) and gap bridge bus current output terminal (9) are crimped onto respectively by electric discharge copper conductor (4), pass through remote control, the start button (11) of first crawl contactor (5), make the hot-wire coil of contactor (5) (13) charged, contactor (5) is started working, now voltage is between 300 ~ 350V, discharging resistance (7) is started working, consume remaining electric energy, after 1 ~ 3 minute to be discharged, controlled discharge time and number of times is come by cut-off button (10), after then testing gap bridge bus short-circuit opening (2) voltage, the start button (12) of crawl contactor (6), make the hot-wire coil of contactor (6) (14) charged, contactor (6) is started working, now voltage is between 0 ~ 20V, after measuring gap bridge bus current enter (3) and gap bridge bus current output terminal (9) no-voltage by volt ohm-milliammeter, remove discharge line and device,
3. again test, after guaranteeing the complete no-voltage of gap bridge bus short-circuit opening (2), enter down one production process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510966473.1A CN105483756B (en) | 2015-12-22 | 2015-12-22 | Especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device and operating method |
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| CN201510966473.1A CN105483756B (en) | 2015-12-22 | 2015-12-22 | Especially big direct current power supply loop gap bridge bus power failure short circuit electric discharge device and operating method |
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| CN105483756A true CN105483756A (en) | 2016-04-13 |
| CN105483756B CN105483756B (en) | 2018-01-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513725A (en) * | 2017-08-10 | 2017-12-26 | 青海盐湖工业股份有限公司 | A kind of disconnected short switching device of closing down magnesium electrolysis bath strong dc electricity |
| CN113755898A (en) * | 2021-08-31 | 2021-12-07 | 赵忠扬 | Rapid corridor bus short-circuit system and method for aluminum electrolysis series |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903924Y (en) * | 2006-01-24 | 2007-05-23 | 兰州铝业股份有限公司 | Measurer for technique parameter of prebaked aluminium electrolysis bath |
| CN201010699Y (en) * | 2007-01-29 | 2008-01-23 | 河南中孚实业股份有限公司 | Aluminum cell trenching device with uninterrupted power supply |
| CN201154993Y (en) * | 2007-12-19 | 2008-11-26 | 贵阳铝镁设计研究院 | Variable resistance type shunt apparatus |
| CN101451248A (en) * | 2008-12-02 | 2009-06-10 | 北方工业大学 | Novel electrolytic bath series stopping and running method and shunt apparatus and system thereof |
| CN201334531Y (en) * | 2008-12-02 | 2009-10-28 | 北方工业大学 | Novel potline stop-start shunting device and system |
| JP2011084755A (en) * | 2009-10-13 | 2011-04-28 | Kinotech Solar Energy Corp | Electrolyzer |
| CN201981273U (en) * | 2010-12-21 | 2011-09-21 | 贵阳铝镁设计研究院有限公司 | Electrified shunting device for electrolysis bath |
| CN203440469U (en) * | 2013-07-31 | 2014-02-19 | 湖南中大冶金设计有限公司 | Connecting structure for passage connecting bus of aluminium cell |
| CN104294318A (en) * | 2013-07-15 | 2015-01-21 | 贵阳铝镁设计研究院有限公司 | Device for reducing magnetic field strength of welding portion of aluminum electrolysis cell and operation method of device |
-
2015
- 2015-12-22 CN CN201510966473.1A patent/CN105483756B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2903924Y (en) * | 2006-01-24 | 2007-05-23 | 兰州铝业股份有限公司 | Measurer for technique parameter of prebaked aluminium electrolysis bath |
| CN201010699Y (en) * | 2007-01-29 | 2008-01-23 | 河南中孚实业股份有限公司 | Aluminum cell trenching device with uninterrupted power supply |
| CN201154993Y (en) * | 2007-12-19 | 2008-11-26 | 贵阳铝镁设计研究院 | Variable resistance type shunt apparatus |
| CN101451248A (en) * | 2008-12-02 | 2009-06-10 | 北方工业大学 | Novel electrolytic bath series stopping and running method and shunt apparatus and system thereof |
| CN201334531Y (en) * | 2008-12-02 | 2009-10-28 | 北方工业大学 | Novel potline stop-start shunting device and system |
| JP2011084755A (en) * | 2009-10-13 | 2011-04-28 | Kinotech Solar Energy Corp | Electrolyzer |
| CN201981273U (en) * | 2010-12-21 | 2011-09-21 | 贵阳铝镁设计研究院有限公司 | Electrified shunting device for electrolysis bath |
| CN104294318A (en) * | 2013-07-15 | 2015-01-21 | 贵阳铝镁设计研究院有限公司 | Device for reducing magnetic field strength of welding portion of aluminum electrolysis cell and operation method of device |
| CN203440469U (en) * | 2013-07-31 | 2014-02-19 | 湖南中大冶金设计有限公司 | Connecting structure for passage connecting bus of aluminium cell |
Non-Patent Citations (2)
| Title |
|---|
| 东南大学等编: "《物理学》", 31 March 2006 * |
| 孙立群 等: "《万用表测量电子元器件技能速成》", 30 April 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513725A (en) * | 2017-08-10 | 2017-12-26 | 青海盐湖工业股份有限公司 | A kind of disconnected short switching device of closing down magnesium electrolysis bath strong dc electricity |
| CN113755898A (en) * | 2021-08-31 | 2021-12-07 | 赵忠扬 | Rapid corridor bus short-circuit system and method for aluminum electrolysis series |
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| CN105483756B (en) | 2018-01-05 |
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Granted publication date: 20180105 Termination date: 20181222 |