CN101451248A - Novel electrolytic bath series stopping and running method and shunt apparatus and system thereof - Google Patents
Novel electrolytic bath series stopping and running method and shunt apparatus and system thereof Download PDFInfo
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- CN101451248A CN101451248A CNA2008102277649A CN200810227764A CN101451248A CN 101451248 A CN101451248 A CN 101451248A CN A2008102277649 A CNA2008102277649 A CN A2008102277649A CN 200810227764 A CN200810227764 A CN 200810227764A CN 101451248 A CN101451248 A CN 101451248A
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Abstract
The invention provides a method for shutting and starting a novel electrolytic tank and a shunt device and a system thereof. The method comprises: a resistance adjusting shunt device is provided; one end of the shunt device is connected with an upright post bus bar of an electrolytic tank, and the other end of the shunt device is connected with a short-circuit bus bar of the electrolytic tank so as to form a parallel branch of the electrolytic tank; when shutting the tank, by the shunt device, the current passing through the parallel branch is increased, so that the electrolytic tank current passing through the electrolytic tank is reduced to the safety value from the normal value, the voltage of the electrolytic tank is reduced below 1V, and the electric connection between the upright post bus bar and a short-circuit block is switched on so as to short-circuit the electrolytic tank; and when starting the tank, the electric connection between the upright post bus bar and a short-circuit block is switched off so as to make the current pass through the parallel branch and the electrolytic tank, by the shunt device, the current passing through the parallel branch is decreased, so that the current pasting through the electrolytic tank is increased to the normal value from the safety value. The method and the shunt device and the system thereof can effectively ensure the safety of the aluminum electrolysis manufacturing equipment and the electricity grid without affecting the normal production of other electrolytic tanks.
Description
Technical field
The present invention relates to the cell technologies field, the method that particularly a kind of novel electrolytic bath series stops, slots and part flow arrangement and system.
Background technology
In the Aluminium Electrolysis process, when the electrolyzer long time continuous working occurs damaged or reaches work-ing life, need stop groove overhaul and maintenance, the new electrolyzer of repairing after finishing needs fluting again, puts into production again.
Large-scale Aluminium Electrolysis all is to adopt a plurality of electrolyzers to be composed in series pot line, therefore, when the electrolyzer of needs maintenance stops groove, also must guarantee other electrolyzer works better in the pot line.Be connected with short-circuit block by riser bus bar the Awaiting Overhaul electrolyzer, make the electric current of pot line directly insert negative busbar and enter next electrolyzer from short-circuit busbar (being connected) with short-circuit block, then can realize electrolyzer short circuit, reach the purpose of it being stopped groove and not influencing other electrolyzer works better of pot line this Awaiting Overhaul; The fluting of the new electrolyzer in maintenance back then is that the riser bus bar that will connect originally separates with short-circuit block, makes flow through new electrolyzer after the maintenance of the electric current of pot line, to resume work again.
Current, because the restriction of technical qualification and site space, electrolyzer stop groove and grooving process is all realized by manual method, specific implementation is: when stopping groove, open the joint bolt between vertical columns bus and the short-circuit block, transfer to original insulcrete between riser bus bar and short-circuit block, tighten joint bolt after being crimped on short-circuit block on the riser bus bar then; During fluting, open the joint bolt of vertical columns bus and short-circuit block, short-circuit block is separated with riser bus bar and plug insulcrete, plug and tighten joint bolt again.
Yet, in actual production process, owing to pass through the powerful electric current of 50～100kA on the riser bus bar, particularly the potline current of electrolyzer is especially up to 160～400kA, during the craft hot line job, phenomenon such as sparking can take place and even blow out between short-circuit block and riser bus bar, serious threat operator's personnel safety and device security, even cause enormous economic loss.In order to prevent this problem, in the existing operation, generally take to stop potline current or potline current is reduced to the installation and removal of carrying out insulation plate between short-circuit block and the riser bus bar after very little again, and the operation that at every turn stops groove and fluting power failure or reduction electric current all needs 20～30 minutes, that is to say, for overhauling one or several electrolyzers, need or reduce electric current 20～30 minutes with whole pot line power failure.
For a pot line with more than 200 electrolyzer, the annual quantity that need stop groove and fluting is up to surplus 100 times, frequent power failure or fall current practice and not only the production and the smooth running of other normal electrolyzer are worked the mischief, may have a strong impact on the work-ing life of electrolyzer, and the network system of power supply is caused huge impact.
Summary of the invention
The problem that the present invention solves provides the method that a kind of novel electrolytic bath series is stopped groove, stops at the maintenance electrolyzer, not only can not influence the works better of other electrolyzers when slotting and can guarantee the safety of personnel and equipment.
Another problem that the present invention solves provides part flow arrangement and the system that a kind of novel electrolytic bath series is stopped groove, stops at the maintenance electrolyzer, not only can not influence the works better of other electrolyzers when slotting and can guarantee the safety of personnel and equipment.
For addressing the above problem, the invention provides the method that a kind of pot line stops, slots, comprising:
The part flow arrangement of one adjustable resistor formula is provided;
One end of described part flow arrangement is connected with the riser bus bar of electrolyzer, and the other end is connected with the short-circuit busbar of electrolyzer, to form the parallel branch of described electrolyzer;
When stopping groove, by part flow arrangement the electric current of the described parallel branch of flowing through is increased, so that the potline current in the described electrolyzer of flowing through is reduced to safety value by normal value, and make below loss of voltage to 1 volt of electrolyzer; Connect being electrically connected between riser bus bar and the short-circuit block then, so that the electrolyzer short circuit is finished and stopped the groove operation;
When fluting, disconnect being electrically connected between riser bus bar and the short-circuit block, parallel branch and electrolyzer so that electric current is flowed through, to the electric current of the described parallel branch of flowing through be reduced by part flow arrangement then, potline current so that flow through in the described electrolyzer is increased to normal value by safety value, finishes the fluting operation.
The described electric current increase that makes the described parallel branch of flowing through by part flow arrangement, potline current so that flow through in the described electrolyzer is specially by the step that normal value is reduced to safety value: reduce the resistance of adjustable resistor formula part flow arrangement, the electric current of the described parallel branch of flowing through is increased.
Describedly the electric current of the described parallel branch of flowing through is reduced by part flow arrangement, potline current so that flow through in the described electrolyzer is specially by the step that safety value is increased to normal value: increase the resistance of adjustable resistor formula part flow arrangement, the electric current of the described parallel branch of flowing through is reduced.
Finish and stop groove or fluting also comprises after the operation: take being connected of part flow arrangement and described riser bus bar and short-circuit block apart, and part flow arrangement is removed from pot line.
Correspondingly, the part flow arrangement that the present invention also provides a kind of novel electrolytic bath series to stop, slot, described part flow arrangement is the part flow arrangement of adjustable resistor formula, comprising: connection bus, slider, resistance and insulating element, wherein,
Described connection bus is connected with the riser bus bar or the short-circuit busbar of electrolyzer;
Described resistance, an end is fixedlyed connected with described connection bus, and the other end is fixedly connected with described insulating element, and the conductive area of this resistance is dull to be changed continuously;
Described insulating element is used for when part flow arrangement disconnects described resistance and slider isolated insulation;
Described slider is connected with the short-circuit busbar or the riser bus bar of electrolyzer, and can slide between the end of resistance and the other end along the dull continually varying direction of the conductive area of described resistance.
The maximum value of described resistance is at least 10 times of described electrolyzer resistance, and the minimum resistance of described resistance is at most 10% of described electrolyzer resistance.
Described resistance is made by high resistivity material, and described connection bus and slider are made by the material of low-resistivity.
Described high resistivity material is titanium, titanium alloy, nickelalloy or graphite.
The surface of described resistance is a rectangle, the dull variation continuously of its conductive area along described rectangle long side direction cross section.
The surface of described resistance is untight annular, the dull variation continuously of its conductive area along the direction cross section of circumference.
The splitting system that the present invention also provides a kind of novel electrolytic bath series to stop, slot comprises control device and above-mentioned arbitrary part flow arrangement, wherein,
Described control device is used to control described part flow arrangement and shunts according to fluting or the needs that stop groove;
In the described splitting system in the quantity of part flow arrangement and the described electrolyzer quantity of the current enter of electrolyzer equate.
Compared with prior art, technique scheme has the following advantages:
Described pot line stops, the method of fluting, implementing to be switched on or switched off being electrically connected in this step between riser bus bar and the short-circuit block, because the parallel branch that described part flow arrangement constitutes can be shunted most potline current, the electric current that flows through electrolyzer (when stopping groove) is reduced for the safety value that can not damage personnel and equipment, loss of voltage is below 1V, therefore, column bus and short-circuit block and between joint bolt and insulcrete operate, can avoid because of the voltage height, the excessive sparking that causes of electric current and even the phenomenon of blowing out, the safety of assurance personnel and equipment; And this method does not need whole pot line outage or reduces electric current, can guarantee the works better of other electrolyzers in the pot line, thereby ensure the technology condition of electrolyzer, prolongs the life-span of electrolyzer.
Adopt described part flow arrangement and system, when part flow arrangement in parallel with electrolyzer, when resistance has minimum resistance, the potline current major part is flow through from parallel branch, the potline current of electrolyzer of flowing through is very little, all is safe for personnel and equipment, and the insulcrete of manually taking apart or installing between riser bus bar and the short-circuit block can not caused danger, and, whole fluting or stop in the groove process and needn't cut off the power supply or reduce electric current to whole pot line.Thereby do not influence the works better of other electrolyzers.
Description of drawings
Shown in accompanying drawing, above-mentioned and other purpose, feature and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by physical size equal proportion convergent-divergent.
Fig. 1 is the schema of the method that pot line stops, slots among the embodiment one;
Fig. 2 is the schematic circuit diagram that part flow arrangement is connected with pot line among the embodiment one;
Fig. 3 is the synoptic diagram of pot line among the embodiment two;
Fig. 4 is the structural representation of part flow arrangement among the embodiment two;
Fig. 5 is the structural representation of part flow arrangement among the embodiment three.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Set forth a lot of details in the following description so that fully understand the present invention, implement but the present invention can also adopt other to be different from alternate manner described here, so the present invention has not been subjected to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with synoptic diagram, when the embodiment of the invention is described in detail in detail; for ease of explanation; the sectional view of indication device structure can be disobeyed general ratio and be done local the amplification, and described synoptic diagram is example, and it should not limit the scope of protection of the invention at this.The three-dimensional space size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
In existing Aluminium Electrolysis process, when electrolyzer is carried out large repairs, stop groove and grooving process and all realize usually by manual method.When stopping groove, open the joint bolt between vertical columns bus and the short-circuit block, transfer to original insulation plate between riser bus bar and short-circuit block, tighten joint bolt after being crimped on short-circuit block on the riser bus bar then; During fluting, open the joint bolt of vertical columns bus and short-circuit block, short-circuit block is separated with riser bus bar and plug insulcrete, plug and tighten joint bolt again.
Powerful electric current during for fear of actually operating on the riser bus bar threatens the safety of personnel and equipment, in the existing operation, need take to stop potline current or potline current is reduced to the installation and removal of carrying out insulation plate between short-circuit block and the riser bus bar after very little again, and the operation that at every turn stops groove and fluting power failure or reduction electric current all needs 20～30 minutes, that is to say, for overhauling one or several electrolyzers, need or reduce electric current 20～30 minutes with whole pot line power failure.Thus, for pot line with many electrolyzers, frequent power failure or fall current practice ordinary production and the smooth running that other need not stop the electrolyzer of groove worked the mischief.
Based on this, method and part flow arrangement and system that technical scheme of the present invention provides a kind of pot line to stop, slot, its basic thought is, when stopping groove or grooving operations, by with the shunting of electrolyzer parallel branch, to be reduced to safety value by the potline current of electrolyzer, and then implement to connect or separate the operation of riser bus bar and short-circuit block, stop at the maintenance electrolyzer like this, not only can not influence the works better of other electrolyzers when slotting and can guarantee the safety of personnel and equipment.
Describe the method that pot line of the present invention stops, slots in detail below in conjunction with specific embodiment.Be outstanding inventive point of the present invention, not shown or do not mark the member that does not have direct correlation with inventive point in the accompanying drawing, for example, anode large bus bar, anode rod, anode block, sodium aluminum fluoride-alumina eltrolysis liquid, aluminium liquid, cathode block, cathode steel bar etc.
Embodiment one
Fig. 1 is the schema of the method that novel electrolytic bath series stops, slots described in the present embodiment.
Step S1: the part flow arrangement that an adjustable resistor formula is provided.This part flow arrangement is for the present invention is based on another technical scheme that same inventive concept provides.
As well-known to those skilled in the art, in the pot line of electrolysis of aluminum, a plurality of electrolyzers adopt series circuit to connect, and constitute the current path of electrolyzer by riser bus bar, anode large bus bar, anode rod, anode block, sodium aluminum fluoride-alumina eltrolysis liquid, aluminium liquid, cathode block, cathode steel bar and negative busbar.
For making things convenient for the repair and maintenance of electrolyzer, short-circuit block is installed on riser bus bar, between described riser bus bar and short-circuit block, have dismountable insulcrete (or claiming insulation spacer), described short-circuit block is connected on the negative busbar of electrolyzer by short-circuit busbar.
When stopping groove, traditional method is with the potline current outage of whole pot line or reduces, and then removes described insulcrete, short-circuit block is connected with riser bus bar, thereby the potline current in the electrolyzer that needs repairing is shorted to next electrolyzer; During fluting, more described short-circuit block and riser bus bar are separated potline current in the electrolyzer after can recovering to keep in repair with insulcrete.
Described part flow arrangement comprises: connection bus, slider, resistance and insulating element, wherein,
Described connection bus is connected with the riser bus bar or the short-circuit busbar of electrolyzer; Described resistance, an end is fixedlyed connected with described connection bus, and the other end is fixedly connected with described insulating element, and the conductive area of this resistance is dull to be changed continuously.Described insulating element is used for when part flow arrangement disconnects described resistance and slider isolated insulation; Described slider is connected with the short-circuit busbar or the riser bus bar of electrolyzer, and can slide between the end of resistance and the other end along the dull continually varying direction of the conductive area of described resistance.
Step S2: an end of described part flow arrangement is connected with the riser bus bar of electrolyzer, and the other end is connected with the short-circuit busbar of electrolyzer, to form the parallel branch of described electrolyzer.
Fig. 2 is the schematic circuit diagram that above-mentioned part flow arrangement is connected with pot line.Pot line comprises at least three electrolyzers, represents electrolyzer with load in schematic circuit, i.e. load 11, load 12, load 13, and the electrolyzer of load 12 representatives need stop the groove maintenance.
Riser bus bar, short-circuit block and short-circuit busbar are combined and are equivalent to switch 14, and the two ends of switch 14 connect load 12, when between short-circuit block and the riser bus bar described insulcrete being installed, being equivalent to switch 14 and opening, and potline current I flows through via load 12; And when removing insulcrete, be equivalent to switch 14 closures, and load 12 is by short circuit, and potline current I flows into downstream load 13 via switch 14.
With reference to Fig. 2, the part flow arrangement of adjustable resistor formula becomes resistance 15 with slip and represents that the one end is connected with the riser bus bar of electrolyzer, and the other end is connected with the short-circuit busbar of electrolyzer, thus formation and load 12 parallel branch that is used to shunt 16 in parallel.
Step S3: when stopping groove, the electric current of the described parallel branch of flowing through is increased,, and make below loss of voltage to 1 volt of electrolyzer so that the potline current in the described electrolyzer of flowing through is reduced to safety value by normal value by part flow arrangement; Connect being electrically connected between riser bus bar and the short-circuit block then, so that the electrolyzer short circuit.
Because the maximum value of the resistance of described part flow arrangement is at least 10 times of described electrolyzer resistance, the minimum resistance of described resistance is at most 10% of described electrolyzer resistance, when stopping groove, slider by mobile part flow arrangement, reduce the resistance of parallel branch 16, the electric current of the described parallel branch of flowing through is increased, thereby the potline current of the load 12 of will flowing through shunting, below the loss of voltage to 1 of electrolyzer volt, make the electric current that flows through electrolyzer be reduced to the safety value that can not damage by normal value to personnel and equipment.And this moment load 12 correspondences electrolyzer by short circuit, the potline current of whole pot line also is a normal value.
Step S4: when fluting, disconnect being electrically connected between riser bus bar and the short-circuit block, so that the electrolyzer path will reduce the electric current of the described parallel branch of flowing through by part flow arrangement then, so that the potline current in the described electrolyzer of flowing through is increased to normal value by safety value.
Concrete, open the joint bolt of vertical columns bus and short-circuit block, short-circuit block separated with riser bus bar and plug insulcrete, plug and tighten joint bolt again, thereby the disconnection riser bus bar is electrically connected with short-circuit block, at this moment most of potline current flows through from described parallel branch, the small portion potline current flows through electrolyzer along riser bus bar, anode block, electrolytic solution, cathode block path again, then, increase the resistance of the described parallel branch 16 of access of adjustable resistor formula part flow arrangement, the electric current of the described parallel branch 16 of flowing through is reduced.Accordingly, make the potline current in the described electrolyzer of flowing through (load 12) be increased to normal value by safety value.
The method that above-mentioned novel electrolytic bath series stops, slots, implementing to be switched on or switched off being electrically connected in this step between riser bus bar and the short-circuit block, because the parallel branch that described part flow arrangement constitutes can be shunted most potline current, the electric current that flows through electrolyzer is reduced for the safety value that can not damage personnel and equipment, therefore, column bus and short-circuit block and between joint bolt and insulcrete operate, can avoid the sparking that causes because of electric current is excessive and even the phenomenon of blowing out, the safety of assurance personnel and equipment; And this method does not need whole pot line outage or reduces electric current, can guarantee the works better of other electrolyzers in the pot line.
In the present embodiment, after the electrolyzer maintenance is finished, being electrically connected between described disconnection riser bus bar and short-circuit block so that by after the electrolyzer path of shunting, can also make the potline current in the electrolyzer be increased to normal value by part flow arrangement by safety value, concrete, can increase the resistance of the access parallel branch of adjustable resistor formula part flow arrangement, the electric current of the described parallel branch of flowing through is reduced, the potline current of electrolyzer of then flowing through accordingly increases, until being increased to normal value by safety value, the electrolyzer that was keeped in repair puts into production again.
In addition, finish and stop groove or fluting can also comprise step S5 after the operation: take being connected of part flow arrangement and described riser bus bar and short-circuit busbar piece apart, and part flow arrangement is removed from electrolyzer.Like this, when needing repairing electrolyzer, part flow arrangement is connected on the electrolyzer, after having keeped in repair, part flow arrangement can be removed again, recover to produce normally, can improve the convenience that stops groove or fluting operation.
Introduce the embodiment of described adjustable resistor formula part flow arrangement below in conjunction with accompanying drawing.
Embodiment two
Fig. 3 is the synoptic diagram of the pot line in the present embodiment, and Fig. 4 is the structural representation of the part flow arrangement described in the present embodiment.
As shown in Figure 3, pot line is by a plurality of electrolyzers that are cascaded (only illustrating three electrolyzers) among the figure, each electrolyzer all comprises: riser bus bar 1, cell body (among the figure not label), short-circuit block 2 and short-circuit busbar 3 constitute current path by the big bus of riser bus bar 1, anode large bus bar, anode rod, anode block, electrolytic solution, aluminium liquid, cathode block, cathode steel bar and negative electrode.This pot line and prior art well-known to those skilled in the art are similar, do not repeat them here.Part flow arrangement 4 is in parallel with electrolyzer.
As shown in Figure 4, part flow arrangement comprises: connection bus 9, resistance 7, slider 8 and insulating element 10.Wherein:
Described connection bus 9 is connected with the riser bus bar 1 or the short-circuit busbar 3 of electrolyzer; Adopt low-resistance metal or alloy material to make, for example, copper, aluminium or its alloy.Connection bus 9 can be connected to the riser bus bar 1 or the short-circuit busbar 3 of electrolyzer by the soft bus of copper or aluminium.
Described resistance 7, the one end is fixedlyed connected with described connection bus 9, and the other end is fixedly connected with described insulating element 10; Resistance 7 is made by high resistivity material, for example titanium, titanium alloy, nickelalloy or graphite etc.The conductive area of this resistance 7 is dull to be changed continuously.
Can be connected by modes such as machinery or welding between resistance 7 and the connection bus 9.
Described insulating element 10 is used for when part flow arrangement disconnects described resistance 7 and slider 8 isolated insulations.
Described slider 8 is connected with the short-circuit busbar 1 or the riser bus bar 3 of electrolyzer, and can slide between the end of resistance 7 and the other end along the dull continually varying direction of the conductive area of described resistance 7.Slider 8 can be connected with the short-circuit busbar 1 or the riser bus bar 3 of electrolyzer by copper or the soft bus of aluminium matter.
For the resistance of guaranteeing resistance 7 sharply changes the shape of the conductive area that resistance is designed to continuously change in certain length (as 1 meter) scope internal resistance value.
As shown in Figure 4, the surface of described resistance 7 is a rectangle, and the side is a trilateral, such structure can make along the conductive area in the cross section of described rectangle long side direction is dull and change continuously, therefore, when slider 8 slided to the other end by an end of resistance 7, the resistance value of put in circuit sharply changed continuously.
When slider 8 was on insulating material 10, part flow arrangement was in off-state; When slider 8 was positioned on the surface of resistance 7 position near insulating element 10, resistance 7 had maximum value; When slider 8 was positioned on the surface of resistance 7 position near connection bus 9, resistance 7 had minimum resistance; When slider 8 moves to when contacting with connection bus 9, part flow arrangement promptly is in the short circuit closure state.The maximum value of resistance 7 is at least 10 times of described electrolyzer resistance, and the minimum resistance of described resistance is at most 10% of described electrolyzer resistance.
State part flow arrangement in the use and stop groove when operation, slider 8 is moved on the insulating element 10, guarantee that part flow arrangement is in off-state, correctly connect part flow arrangement and electrolyzer riser bus bar 1 and short-circuit busbar 3 by mode shown in Figure 3, then slider 8 is moved on the resistance 7, this moment part flow arrangement closure but resistance is very big, the potline current of part flow arrangement of flowing through is very little, slider 8 continues to be moved to the left, the resistance of resistance access circuit is constantly reduced, the potline current of shunting in the part flow arrangement constantly increases, when slider 8 contacts with connection bus 9, nearly all potline current passes through from part flow arrangement, and the voltage of electrolyzer drops to below 1 volt; Insulcrete between this moment operator's hand disassembly riser bus bar 1 and the short-circuit block 2, short-circuit block 2 is crimped onto on the riser bus bar 1, tightens standing bolt, connect being electrically connected between riser bus bar 1 and the short-circuit block 2, so that, finish and stop the groove operation by the electrolyzer short circuit after the shunting.
The working method of fluting operation is also similar, part flow arrangement is connected with short-circuit busbar 3 with electrolyzer riser bus bar 1, slide block 8 moves on the resistance 7 until contacting with connection bus 9 from insulating material 10, operator are manual to be installed in insulcrete between riser bus bar 1 and the short-circuit block 2, tighten standing bolt, thereby with the be electrically connected disconnection of short-circuit block 2 with riser bus bar 1, most of electric current passes through from slide block and connection bus 9, small part is passed through from electrolyzer, then slider 8 is moved to the direction of leaving connection bus 9 on resistance 7, until moving on the insulating material 9, this process resistance increases gradually until insulation, part flow arrangement is in off-state, make by the electric current in the electrolyzer to increase gradually, take part flow arrangement apart, finish the fluting operation until whole electric currents process electrolyzers.
As seen, adopt above-mentioned part flow arrangement, when part flow arrangement in parallel with electrolyzer, when resistance has minimum resistance, the potline current major part is flow through from parallel branch, the potline current of electrolyzer of flowing through is very little, for personnel and equipment all is safe, the insulcrete of manually taking apart or installing between riser bus bar and the short-circuit block can not caused danger, and, whole fluting or stop in the groove process and needn't cut off the power supply or reduce electric current to whole pot line, thus the works better of other electrolyzers do not influenced.
Among the above embodiment, the slider of part flow arrangement is done straight line and is moved on resistance, and in addition, part flow arrangement can also be designed to, and slider is done the form that circumference moves on resistance.In following examples, describe in detail.
Embodiment three
Fig. 5 is the structural representation of the part flow arrangement described in the present embodiment.
As shown in Figure 5, part flow arrangement comprises: connection bus 19, resistance 17, slider 18 and insulating element 20.Wherein:
Described connection bus 19 is connected with the riser bus bar 1 or the short-circuit busbar of electrolyzer; Adopt low-resistance metal or alloy material to make, for example, copper, aluminium or its alloy.
Described resistance 17, one end and described connection bus 19 are fixedlyed connected by modes such as machinery or welding, and the other end is fixedly connected with described insulating element 20; Resistance 17 is made by high resistivity material, for example titanium, titanium alloy, nickelalloy or graphite etc.The conductive area of this resistance 17 is dull to be changed continuously.
Described insulating element 20 is used for when part flow arrangement disconnects described resistance 17 and slider 18 isolated insulations.
Described slider 18 is connected with the short-circuit busbar 3 or the riser bus bar 1 of electrolyzer, and can slide between the end of resistance 17 and the other end along the dull continually varying direction of the conductive area of described resistance 17.
Be with the difference part of embodiment two, the surface of described resistance 17 is untight annular, it changes continuously along the conductive area in the direction cross section of circumference is dull, and when slider 18 was positioned on the insulating element 20 of annulus one end, part flow arrangement was in off-state; When slider 18 along circumferential slippage, when being positioned on the annulus position near insulating element 20, resistance 17 has maximum value; Along with slider 18 slides near insulating material 20 ends along circumferential, the resistance of resistance 17 put in circuit increases gradually; When slider 18 was positioned at the position of close connection bus 19 of annular resistance 17, resistance 17 had minimum resistance; When slider 18 moves to when contacting with connection bus 19, part flow arrangement promptly is in the short circuit closure state.Wherein, the maximum value of resistance 17 is at least 10 times of described electrolyzer resistance, and the minimum resistance of described resistance is at most 10% of described electrolyzer resistance.
As seen, above-mentioned part flow arrangement is done circumference by its slider and is moved the resistance of put in circuit is continuously changed on resistance, when it is in parallel with electrolyzer, also can play the effect of shunting, realizes the effect same with embodiment two.
The splitting system that the present invention also provides a kind of novel electrolytic bath series to stop, slot, described splitting system comprises: the arbitrary part flow arrangement described in control device and the foregoing description, wherein,
The quantity of described part flow arrangement equates with current enter (riser bus bar) quantity of electrolyzer in the described pot line;
Described control device is used to control described part flow arrangement and according to fluting or the needs that stop groove electrolyzer is shunted.
To sum up, the novel electrolytic bath series that the embodiment of the invention provided is stopped method and the part flow arrangement and the system of groove, can prevent effectively that the electrolyzer short-circuit block is connected the spark phenomenon that moment produces with riser bus bar, ensure the safety of Aluminium Electrolysis equipment and electrical network.
In addition, can make by variation of the electric current on the electrolyzer and bath voltage variation and steadily carry out, avoid the step sudden change of electric current and voltage; Secondly, need to extract earlier ionogen and aluminium water in the time of can avoiding using mechanical switch merely and reduce anode, use more facility and safety, and can guarantee that electrolyzer stops groove and grooving process steadily carries out to reduce the operation of bath voltage.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Need to prove, though part flow arrangement of the present invention has been realized the function of resistor in fact, yet but has the particular structure feature, its connection bus, resistance and slider are all made by the alloy material of large volume, and can with the voltage rating and the currents match of pot line, after described method enforcement, has the obvious effects described in the above embodiment.
Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (11)
1, a kind of novel electrolytic bath series method of stopping, slotting is characterized in that, comprising:
The part flow arrangement of one adjustable resistor formula is provided;
One end of described part flow arrangement is connected with the riser bus bar of electrolyzer, and the other end is connected with the short-circuit busbar of electrolyzer, to form the parallel branch of described electrolyzer;
When stopping groove, by part flow arrangement the electric current of the described parallel branch of flowing through is increased, so that the potline current in the described electrolyzer of flowing through is reduced to safety value by normal value, and make below loss of voltage to 1 volt of electrolyzer; Connect being electrically connected between riser bus bar and the short-circuit block then, so that the electrolyzer short circuit is finished and stopped the groove operation;
When fluting, the electrolyzer path disconnects being electrically connected between riser bus bar and the short-circuit block, so that will reduce the electric current of the described parallel branch of flowing through by part flow arrangement then, potline current so that flow through in the described electrolyzer is increased to normal value by safety value, finishes the fluting operation.
2, the method for stopping, slotting according to the described novel electrolytic bath series of claim 1, it is characterized in that, the described electric current increase that makes the described parallel branch of flowing through by part flow arrangement, potline current so that flow through in the described electrolyzer is specially by the step that normal value is reduced to safety value: reduce the resistance of adjustable resistor formula part flow arrangement, the electric current of the described parallel branch of flowing through is increased.
3, the method for stopping, slotting according to the described novel electrolytic bath series of claim 1, it is characterized in that, describedly the electric current of the described parallel branch of flowing through is reduced by part flow arrangement, potline current so that flow through in the described electrolyzer is specially by the step that safety value is increased to normal value: increase the resistance of adjustable resistor formula part flow arrangement, the electric current of the described parallel branch of flowing through is reduced.
4, the method for stopping, slotting according to each described novel electrolytic bath series of claim 1 to 3, it is characterized in that, finish and stop groove or fluting also comprises after the operation: take being connected of part flow arrangement and described riser bus bar and short-circuit block apart, and part flow arrangement is removed from electrolyzer.
5, a kind of novel electrolytic bath series part flow arrangement of stopping, slotting is characterized in that described part flow arrangement is the part flow arrangement of adjustable resistor formula, comprising: connection bus, slider, resistance and insulating element, wherein,
Described connection bus is connected with the riser bus bar or the short-circuit busbar of electrolyzer;
Described resistance, an end is fixedlyed connected with described connection bus, and the other end is fixedly connected with described insulating element, and the conductive area of this resistance is dull to be changed continuously;
Described insulating element is used for when part flow arrangement disconnects described resistance and slider isolated insulation;
Described slider is connected with the short-circuit busbar or the riser bus bar of electrolyzer, and can slide between the end of resistance and the other end along the dull continually varying direction of the conductive area of described resistance.
6, the part flow arrangement that stops, slots according to the described novel electrolytic bath series of claim 5 is characterized in that, the maximum value of described resistance is at least 10 times of described electrolyzer resistance, and the minimum resistance of described resistance is at most 10% of described electrolyzer resistance.
7, the part flow arrangement that stops, slots according to claim 5 or 6 described novel electrolytic bath series is characterized in that described resistance is made by high resistivity material, and described connection bus and slider are made by the material of low-resistivity.
8, the part flow arrangement that stops, slots according to the described novel electrolytic bath series of claim 7 is characterized in that, described high resistivity material is titanium, titanium alloy, nickelalloy or graphite.
9, the part flow arrangement that stops, slots according to the described novel electrolytic bath series of claim 5 is characterized in that, the surface of described resistance is a rectangle, the dull variation continuously of its conductive area along described rectangle long side direction cross section.
10, the part flow arrangement that stops, slots according to the described novel electrolytic bath series of claim 5 is characterized in that, the surface of described resistance is untight annular, the dull variation continuously of its conductive area along the direction cross section of circumference.
11, a kind of novel electrolytic bath series splitting system of stopping, slotting, it is characterized in that, comprise control device and as each described part flow arrangement of claim 5 to 10, wherein, described control device is used to control described part flow arrangement and shunts according to fluting or the needs that stop groove;
In the described splitting system in the quantity of part flow arrangement and the described pot line quantity of the current enter of electrolyzer equate.
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| CNA2008102277649A CN101451248A (en) | 2008-12-02 | 2008-12-02 | Novel electrolytic bath series stopping and running method and shunt apparatus and system thereof |
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| CNA2008102277649A CN101451248A (en) | 2008-12-02 | 2008-12-02 | Novel electrolytic bath series stopping and running method and shunt apparatus and system thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638797B (en) * | 2009-08-27 | 2011-03-16 | 四川启明星铝业有限责任公司 | Method for electrically reforming cathode bath circumference bus of aluminum electrolytic bath |
| CN104005053A (en) * | 2014-04-29 | 2014-08-27 | 中国铝业股份有限公司 | Apparatus for realizing anode current diversion during aluminum electrolysis cell baking |
| CN105483756A (en) * | 2015-12-22 | 2016-04-13 | 河南中孚实业股份有限公司 | 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 |
| CN106283126A (en) * | 2016-11-10 | 2017-01-04 | 攀钢集团钛业有限责任公司 | Streamline electrolysis bath part flow arrangement |
| CN112834277A (en) * | 2019-11-22 | 2021-05-25 | 北方工业大学 | Fluid sampling and sampling airtight interface assembly capable of being continuously used |
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- 2008-12-02 CN CNA2008102277649A patent/CN101451248A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638797B (en) * | 2009-08-27 | 2011-03-16 | 四川启明星铝业有限责任公司 | Method for electrically reforming cathode bath circumference bus of aluminum electrolytic bath |
| CN104005053A (en) * | 2014-04-29 | 2014-08-27 | 中国铝业股份有限公司 | Apparatus for realizing anode current diversion during aluminum electrolysis cell baking |
| CN105483756A (en) * | 2015-12-22 | 2016-04-13 | 河南中孚实业股份有限公司 | 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 |
| CN106283126A (en) * | 2016-11-10 | 2017-01-04 | 攀钢集团钛业有限责任公司 | Streamline electrolysis bath part flow arrangement |
| CN106283126B (en) * | 2016-11-10 | 2018-08-21 | 攀钢集团钛业有限责任公司 | Assembly line electrolytic cell part flow arrangement |
| CN112834277A (en) * | 2019-11-22 | 2021-05-25 | 北方工业大学 | Fluid sampling and sampling airtight interface assembly capable of being continuously used |
| CN112834277B (en) * | 2019-11-22 | 2023-08-29 | 北方工业大学 | Fluid sampling and delivering closed interface assembly capable of being continuously used |
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