CN104818499B - A kind of electrolysis is bench of burners - Google Patents

Abstract

Bench of burners and the electrolytic method of a kind of electrolysis, belongs to rare earth metallurgy electrolysis installation and uses technical field.Including shared power supply (12) and at least 2 electrolytic furnaces；Described each electrolytic furnace includes that negative electrode (8) and anode (9), described shared power supply (12) are connected with the anode of First electrolytic furnace according to the positive pole of shared power supply (12) with each electrolytic furnace, the anode of every electrolytic furnace is connected with the negative electrode of previous electrolytic furnace thereafter, the negative electrode of the last electrolytic furnace connects composition with the negative pole of power supply (12) together；Sharing power supply (12) is main circuit (41) to the circuit that each electrolytic furnace is powered, and described each electrolytic furnace also includes controlling the adjustment parts (3) that anode (9) moves.Have control sensitive, easy to use, energy utilization rate is high, power consumption is low and the advantage such as gas easily effusion that produces during electrolysis.Product electricity unit consumption increases with the electrolytic furnace quantity being electrolysed bench of burners middle work and reduces.

Description

A kind of electrolysis is bench of burners

Technical field

The present invention relates to a kind of produce rare earth metal and alloy electrolytic furnace thereof and the electrolysis that is made up of this electrolytic furnace is bench of burners and uses Method.Belong to rare earth metallurgy equipment and applied technical field.

Background technology

In rare earth metal and alloy production thereof, electrolysis is conventional production method.Rare earth metal and the electrolysis temperature of alloy production thereof Generally more than about 900 DEG C.

Date of publication is on 02 13rd, 2013, and publication No. is that the entitled side of CN102925931A is inserted under submergence type negative electrode rare earth and melted The Chinese patent application of salt electrolysis bath discloses and " including: pot shell (10), side insert negative electrode (1), negative electrode busbar (2), insulation Sidewall (3), sidewall furnace lining (4), dead ring (5), metal deflector (6), crucible (7), furnace bottom (8), anode (9), described Negative electrode (1) one end is connected and imbeds with negative electrode busbar (2) in sidewall furnace lining, insulative sidewall (3), and from sidewall furnace lining (4) bottom Position is inserted in electrolysis bath burner hearth, and side is inserted negative electrode (1) and is positioned at anode (9) lower section, relative to anode (9) horizontal parallel position band one Clamp angle " technical scheme.Described in this technical scheme during electrolysis bath life-time service, owing to anode working face is anode bottom surface, exist The gas that cell reaction produces is difficult to effusion, easily occurs that anode effect causes electrolytic efficiency to decline, effectively electrolysis area declines； Electrolytically generated product is along level or has the side of certain slope to insert negative electrode to flow slowly in crucible, make product in the reaction zone time of staying Long increase secondary response；Negative electrode upper surface easily deposit the material not being electrolysed cause effectively being electrolysed area decline and current efficiency declines, The defects such as power consumption increase.

The power-saving method of entitled a kind of rare earth molten-salt electrolysis, publication date is on November 02nd, 2005, Publication No. CN1690252A Chinese patent application disclose and " multiple electrolysis baths combined in the way of series-fed, then uses a set of rectifier power source Multiple electrolysis baths are powered by equipment simultaneously ... use the electrolysis bath with air cooling equipment, should when a certain electrolyzer temperature is too high The chiller of electrolysis bath is opened " technical scheme to produce with identical Faradaic current after solving electrolysis bath series connection time a certain electrolysis Bath temperature spends high technical problem.The part energy is transferred to the environment the strongest with product relatedness by the existence of this technical scheme, both wastes The energy pollutes again environment, is difficult to timely and accurately control the defects such as electrolyzer temperature.

Summary of the invention

The drawbacks described above existed for prior art electrolysis bath, the present invention provides a kind of electrolytic furnace, adopts the following technical scheme that

A kind of electrolytic furnace, including feed pipe 1, adjust parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, Anode 9, crucible 10, heat-insulation layer 16 and antiseepage insulating element 20, be followed successively by from the outside to the core shell 7, heat-insulation layer 16, furnace wall 6, Burner hearth 5, the cavity in furnace wall 6 forms open-topped burner hearth 5, burner hearth 5 top be provided with seal closure 4 cover on burner hearth 5 opening it On.Negative electrode 8, anode 9 and crucible 10 it is provided with in described burner hearth 5.Described negative electrode 8 is through shell 7, heat-insulation layer 16 and furnace wall 6 vertically arrange, the part being positioned in furnace wall 6 outside shell 7 is terminals 81；Terminals 81 and furnace wall 6, heat-insulation layer 16 And between shell 7, have antiseepage insulating element 20.Described anode 9 hangs on the side of negative electrode 8.Described adjustment parts 3 are positioned at close On sealing cover 4, control anode 9 and move；Described anode 9 moves as moving forward and backward, move up and down, move left and right and/or rotating, Described rotation includes deflecting around horizontal line and/or plumb line and swinging back and forth.I.e. anode 9 can be with the most one-dimensional reciprocating. Described crucible 10 is placed in bottom burner hearth 5 and is positioned at below negative electrode 8, and described feed pipe 1 connects through seal closure 4 with burner hearth 5.Its In be fixed on seal closure 4 and be preferred adjusting parts 3.Preferably antiseepage insulating element 20 divides in furnace wall 5, heat-insulation layer 16 Do not arrange.

One of optimal technical scheme of the present invention is in the furnace wall 6 that negative electrode 8 one end in stove embeds terminals 81 offside, negative electrode 8 And there is antiseepage insulating element 20 between furnace wall 6.

The another optimal technical scheme of the present invention is that the both sides of described negative electrode 8 all have anode 9.

The another optimal technical scheme of the present invention is negative electrode 8 and anode 9 arranged crosswise.

The another optimal technical scheme of the present invention is that described negative electrode 8 is respectively protruding in burner hearth 5 from the both sides of furnace wall 6.I.e. negative electrode 8 Two terminals 81 are each passed through furnace wall 6, heat-insulation layer 16 and shell 7 from opposite sides in burner hearth 5 and stretch out.

The another optimal technical scheme of the present invention is that described 2 negative electrodes 8 facing each other connect in burner hearth.

The another optimal technical scheme of the present invention is furnace wall 6 and the shell 7 that described negative electrode 8 passes across both sides, and 2 of negative electrode 8 connect Line end 81 lays respectively at outside the shell 7 of both sides.

The another optimal technical scheme of the present invention be described crucible 10 on along horizontally disposed, the end of crucible 10 from one end to the other end Tilt.

The another optimal technical scheme of the present invention is the width width more than the other end of relatively low one end, described crucible 10 end.

The another optimal technical scheme of the present invention is also to include that two or more crucible 10 is connected by passage 11.

The another optimal technical scheme of the present invention is that the terminals 81 of negative electrode 8 are additionally provided with chiller 12.

The another optimal technical scheme of the present invention is that described chiller 12 is positioned at cathode connection end 81 and/or cooling antiseepage insulating barrier 20 correspondence positions, are used for cooling down cathode connection end 81 and/or cooling antiseepage insulating barrier 20.

The another optimal technical scheme of the present invention be described chiller 12 be outer cooler and/or intercooler, described outer cooler Being arranged on terminals 81 outer surface, described intercooler is arranged in terminals 81.

The another optimal technical scheme of the present invention is that described chiller 12 for cooling cathode connection end 81 and/or cools down antiseepage insulating barrier 20。

The another optimal technical scheme of the present invention is that anode 9 is parallel with negative electrode 8.

The using method of Rare Earth Electrolysis stove of the present invention: control anode 9 side-to-side movement change negative and positive two interpolar by adjusting parts 3 Distance reaches to adjust the purpose of the technological parameters such as corresponding decomposition voltage, furnace temperature.

One of using method optimal technical scheme of Rare Earth Electrolysis stove of the present invention be by adjust parts 3 control anode 9 lifting and/ Or seesaw, rotate the adjustment corresponding process parameters such as change effective conductive area of anode 9, electric current density.

Another using method of Rare Earth Electrolysis stove of the present invention: the using method of Rare Earth Electrolysis stove, it is characterised in that by adjusting parts 3 control anode 9 moves forward and backward, moves up and down, moves left and right and/or rotates the gas effusion helping electrolysis to produce.

Another using method of Rare Earth Electrolysis stove of the present invention: by adjusting supply voltage and/or electric current adjusting process parameter.

A kind of electrolysis is bench of burners, 1 shared power supply and at least 2 electrolytic furnaces are composed in series.Described each electrolytic furnace includes negative electrode 8 With anode 9.Described shared power supply 12 is connected with the anode of First electrolytic furnace according to the positive pole of shared power supply 12 with each electrolytic furnace, Thereafter the anode of every electrolytic furnace is connected with the negative electrode of previous electrolytic furnace, the negative electrode of the last electrolytic furnace uses power supply 12 together Negative pole connects composition.Sharing power supply 12 is main circuit 41 to the circuit that each electrolytic furnace is powered, and the most each electrolytic furnace also includes adjusting Parts 3, described adjustment parts 3 control anode 9 and move.

The present invention is electrolysed one of bench of burners optimal technical scheme, and described negative electrode 8 is through shell 7, the vertical cloth of heat-insulation layer 16 and furnace wall 6 Putting, the part being positioned in furnace wall 6 outside shell 7 is terminals 81；Described anode 9 hangs on the side of negative electrode 8.

The present invention is electrolysed bench of burners another optimal technical scheme, and described anode 9 is parallel with negative electrode 8.

The present invention is electrolysed bench of burners another optimal technical scheme, and described anode 9 moves as moving forward and backward, move up and down, moving left and right And/or rotate.

The present invention is electrolysed bench of burners another optimal technical scheme, and described adjustment parts 3 are positioned on seal closure 4.

The present invention is electrolysed bench of burners another optimal technical scheme, described each electrolytic furnace also include feed pipe 1, seal closure 4, burner hearth 5, Furnace wall 6, shell 7, crucible 10, heat-insulation layer 16 and antiseepage insulating element 20, be followed successively by from the outside to the core shell 7, heat-insulation layer 16, Furnace wall 6, burner hearth 5, the cavity in furnace wall 6 forms open-topped burner hearth 5, and burner hearth 5 top is provided with seal closure 4 and covers on burner hearth On 5 openings.Negative electrode 8, anode 9 and crucible 10 it is provided with in described burner hearth 5.Terminals 81 and furnace wall 6, heat-insulation layer 16 and Antiseepage insulating element 20 is had between shell 7.Described crucible 10 is placed in bottom burner hearth 5 and is positioned at below negative electrode 8, described feed pipe 1 Connect through seal closure 4 with burner hearth 5.

The present invention is electrolysed bench of burners another optimal technical scheme, adjusts parts 3 and is fixed on seal closure 4.

The present invention is electrolysed bench of burners another optimal technical scheme, and antiseepage insulating element 20 is respectively provided with in furnace wall 5, heat-insulation layer 16.

The present invention is electrolysed bench of burners another optimal technical scheme, and the motion of described anode 9 includes moving forward and backward, moves up and down, left and right is moved Move and/or rotate.I.e. anode 9 can be with the most one-dimensional reciprocating.

The present invention is electrolysed bench of burners another optimal technical scheme, and described rotation includes rotating around horizontal line and/or plumb line.Described rotation To swing back and forth as excellent.

The present invention is electrolysed bench of burners another optimal technical scheme, and described each electrolytic furnace is same electrolysis in this specification " summary of the invention " Arbitrary electrolytic furnace in stove or respectively this specification " summary of the invention ".

The present invention is electrolysed bench of burners another optimal technical scheme, also includes switching 17 and switching 18.Described each switch 18 is positioned at main electricity In road 41 between anode 9 and the negative electrode 8 of previous electrolytic furnace of each electrolytic furnace or the anode 9 of First electrolytic furnace uses power supply together Between the positive pole of 12.Before one end of described each switch 17 is connected in main circuit 41 each switch 18, the other end is connected to main Circuit 41 forms each control circuit 42 before next switch 18.Described switch 18 can cut off shared power supply 12 to each electrolysis The power supply of stove, now ON switch 17 do not affect electrolysis bench of burners in the use of other electrolytic furnace.

The present invention is electrolysed bench of burners another optimal technical scheme, also includes that switch and being cut in electrolysis is bench of burners by arbitrary electrolytic furnace stops Control circuit 42.

The present invention is electrolysed bench of burners another optimal technical scheme, and at least 1 electrolytic furnace is also equipped with accessory power supply 13, described auxiliary electricity The positive pole in source 13 is connected with the anode of respective electrolytic furnace, and the negative pole of accessory power supply 13 is connected with the negative electrode of respective electrolytic furnace.

The present invention is electrolysed bench of burners using method, with shared power supply 12 for electrolysis bench of burners in each electrolytic furnace provide power supply, by adjust The voltage and/or the electric current that share power supply 12 output adjust the electrolysis works such as the decomposition voltage of each electrolytic furnace, electrolysis temperature and electric current density Skill parameter.

The present invention is electrolysed bench of burners another using method, it is characterised in that provide power supply with shared power supply for each electrolytic furnace, by respectively The parts 3 that adjust of electrolytic furnace control the anode-cathode distance of anode 9 motion each electrolytic furnace negative and positive two interpolar of adjustment and/or are effectively electrolysed area Adjust electrolysis bench of burners in the technological parameter such as electrolysis temperature of each electrolytic furnace.

The present invention is electrolysed the another optimal technical scheme of bench of burners using method, provides main electricity with shared power supply 12 for each electrolytic furnace Source, by adjusting accessory power supply 13 output voltage and/or electric current to adjust electrolysis temperature and the electric current density etc. of corresponding each electrolytic furnace Technological parameter.

The present invention is electrolysed the another optimal technical scheme of bench of burners using method, first adjusts the moon when adjusting each electrolytic furnace technological parameter Sun the two poles of the earth pole span.

The present invention is electrolysed the another optimal technical scheme of bench of burners using method, when during described electrolysis is bench of burners, arbitrary electrolytic furnace need to suspend, Switch 17 corresponding in main circuit 41 should be controlled and cut off the power supply to this electrolytic furnace, and connect corresponding control circuit 42 by arbitrary Electrolytic furnace is cut in electrolysis is bench of burners and is stopped.

Electrolytic furnace of the present invention owing to having in seal closure, burner hearth, arrange, anode and cathode pole span is adjustable, anode by negative and positive the two poles of the earth parallel vertical Not only can move but also can rotate, from side, furnace wall draw cathode connection end make cathode connection end be positioned at shell outside, there is cooling To structures such as one end inclinations at the bottom of device, crucible, anode moves left and right regulation pole span can control decomposition voltage, a movable side Electrolyte can be stirred in face, on the other hand accelerates gas away from anode, can also eliminate anode effect, does not the most hinder reaction to produce Raw gas effusion, the motion of anode additionally aids the effusion of gas and strengthens the effect of electrolyte flow, having on the one hand reaction Gas easily escapes easily collecting, product easily collecting, the slag easy to clean of reaction generation, is easily installed product taking-up parts and takes out product, And reduce temperature and the dust of more than seal closure, significantly reduce corrosion and the resistance of positive wire；On the other hand it is easy to receive Collection processes electrolytic waste gas, is conducive to protection environment and improves operating condition；Furthermore the brace foundation adjusting parts 3 can be become； Negative electrode in burner hearth is fully immersed in molten salt electrolyte, extends negative electrode service life.Cathode and anode is arranged vertically on same electricity Solve and stove can arrange many group cathode and anode groups simultaneously；The rare earth molten-salt electrolysis stove of the present invention facilitates implementation maximization and automatization, And it is more energy-conservation, it is achieved cleaning produces；Chiller reduce cathode temperature, can strengthen prevent electrolytic liquid seepage effect, The advantages such as slowing down cathode oxidation loss and reduction cathode resistor.

The present invention is electrolysed the bench of burners prior art that overcomes and must power to need the electric current of the electrolysis bath of maximum current in electrolysis bath group, Will result in partial electrolyte groove electrolysis temperature too high, the waste defect such as electric energy, have control sensitive, can be respectively by each electrolytic furnace Electrolysis temperature control the most in time within optimum range, both can overall association control also can the advantage such as single control.Share electricity Source output voltage improves, and decreases power supply unit and circuit etc., decreases the loss of power-supply device self, electricity after electrolytic furnace series connection Path loss consumption also reduces, and energy utilization rate is high, and product electricity unit consumption is low.Change pole span, the electrolysis of arbitrary electrolytic furnace can be adjusted in time Voltage, control furnace temperature so that each electrolytic furnace electrolysis temperature is suitable, and energy utilization rate is high.After increasing accessory power supply, more easily Control each electrolytic furnace technological parameter.It is possible not only to produce single product in electrolysis is bench of burners, it is also possible to middle give birth to electrolysis is bench of burners simultaneously Produce multiple product.The electrolytic furnace being electrolysed bench of burners middle combination in any can also be cut and stop.Share power supply 12 output voltage and each electrolysis Stove is individually electrolysed the absolute value of the difference of the voltage sum of rare earth metal to be increased with the electrolytic furnace quantity being electrolysed bench of burners middle work and increases； Product electricity unit consumption increases with the electrolytic furnace quantity being electrolysed bench of burners middle work and reduces.Accessory power supply output electric current with regulation electrolytic furnace When regulating the technological parameter of each electrolytic furnace, advantageously reduce electrolytic power consumption.

Accompanying drawing explanation

Fig. 1 is embodiment 1,4,5,8,9,11 schematic diagram.

Fig. 2 is embodiment 2,13 schematic diagram.

Fig. 3 is embodiment 3,6,7,10,12 schematic diagram.

Fig. 4 is embodiment 4 schematic diagram.

Fig. 5 is embodiment 8 schematic diagram.

Fig. 6 is embodiment 5 schematic diagram.

Fig. 7 is embodiment 1,2,3,9,13 schematic diagram.

Fig. 8 is embodiment 5,8 schematic diagram.

Fig. 9 is embodiment 6,10,12 schematic diagram.

Figure 10 is embodiment 6,10,12 schematic diagram.

Figure 11 is embodiment 7,11 schematic diagram.

Figure 12 is embodiment 9 schematic diagram.

Figure 13 is embodiment 10,12 schematic diagram.

Figure 14 is embodiment 11 schematic diagram.

Figure 15 is comparative example 1 schematic diagram.

Detailed description of the invention

Embodiment 1

See Fig. 1, Fig. 7.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, graphite Anode 9, crucible 10, fixture 11, jacket water (J.W.) cooler 12, heat-insulation layer 16 and antiseepage insulating element 20.Described shell 7 Having heat-insulation layer 16 and the furnace wall 6 built up by graphite material the most from the outside to the core, the cavity in furnace wall 6 forms open-topped burner hearth 5, Burner hearth 5 top is provided with seal closure 4 and covers on heat-insulation layer 16.1 piece of negative electrode 8 and 2 pieces of graphite sun it are provided with in described burner hearth 5 Pole 9.Described negative electrode 8 is made up of metallic plate, and one end is vertically suspended in burner hearth 5, and the other end is terminals 81, described wiring Outside end 81 is through furnace wall 6 and shell 7 etc. to shell 7；A part for terminals 81 is sealingly fastened in furnace wall 6, heat-insulation layer 16 and shell 7 in, have antiseepage insulating element 20 between terminals 81 and furnace wall 6, heat-insulation layer 16 and shell 7.Described adjustment Parts 3 also include connecting rod 33, wherein adjust parts 3 and are positioned on seal closure 4, connecting rod 33 through seal closure 4 with negative electrode 8 The graphite anode 9 hanging on negative electrode 8 both sides abreast connects.The electricity of the negative electrode 8 in the length and width of described anode 9 and burner hearth 5 Solve work surface coupling (lower same).Described adjustment parts 3 by connecting rod 33 control anode 9 up and down and/or motion around, Rotate.Described rotation is respectively and rotates around plumb line, rotates around vertical equity line and come around plumb line rotation or vertical equity line Backswing is moved.Described inferior movement (including rotating) refers to from terminals 81 finding anode 9 relative to the motion of negative electrode 9 (lower same). One end of described crucible 10 is less relative to other end width and the degree of depth is shallower, is placed in bottom burner hearth 5 and makes crucible below position negative electrode 8 The upper edge of 10 keeps level, collects the product that negative electrode 8 falls.In order to accurately place crucible 10, can fit in the bottom of furnace wall 6 When position arranges crucible locating slot.Described jacket water (J.W.) cooler 12 is arranged on terminals 81 surface outside shell 7.

During electrolytic metal neodymium, anode 9 is connected with the positive pole of power supply, and terminals 81 are connected with the negative pole of power supply outside shell 7.? The liquid level that negative electrode 8 in burner hearth 5 is immersed in melted electrolyte relative to electrolyte is substantially vertical.Neodymium chemical combination after switching on power Thing on negative electrode 8 by electrolysis separate out into liquid metal neodymium flow down along negative electrode 8 be collected in crucible 10 in automatically concentrate on crucible 10 Bottom more deeply, wider one end.In production process when power supply output is stablized, 9 liters of anode can be controlled by adjusting parts 3 Fall or movable effective conductive area of anode 9, the electric current density etc. of changing adjust corresponding process parameters, it is also possible to by adjusting Parts 3 control anode 9 move left and right change negative and positive two interpolar distance reach adjust decomposition voltage, Faradaic current, electrolysis temperature Purpose Deng technological parameter.Voltage and/or the electric current that can certainly adjust power supply output adjust decomposition voltage, Faradaic current, electricity Solve the technological parameters such as temperature.Also liquid electrolyte is played when anode 9 moves certain stirring action, beneficially electrolyte flow And the effusion of gas；Gas is not easy to be attached on anode 9.When needs stirring electrolyte, with anode 9 around plumb line back and forth Swing most pronounced effects.When needs accelerate gas effusion, move back and forth up and down (or vibration) with anode and be preferred.

Owing to anode 9 is consumable goods in process of production, constantly reduce with the thickness of production process anode 9 so that cathode and anode Between distance constantly increase, cause decomposition voltage constantly to rise.Control anode 9 by adjustment parts 3 to move left and right, permissible The distance of regulating YIN and YANG interpolar in time, it is also possible to the distance keeping negative and positive interpolar according to the depletion rate continuous moving of anode 9 is constant, Decrease because of anode cathode separation too far, cause monolithic anode current little, partial electrolysis Low Response, or because of anode cathode separation mistake Closely, the phenomenon causing anode effect etc. to be unfavorable for that cell reaction is carried out occurs, it is ensured that electrolysis production process stabilization.

More non-homogeneous consumption is consumed, with making owing to anode 9 is likely to occur certain the most relative another side in consumption process With the increase of time, between same group of cathode and anode, the difference of two ends distance is increasing.Control anode 9 around plumb line rotate or Rotating around vertical equity line can farthest keep the distance at two ends between same group of cathode and anode identical.I.e. keep negative and positive two The electrolysis work surface of pole is parallel, can improve and effectively be electrolysed area, keeps higher efficiency at Faradaic current, voltage time constant.

Negative electrode 8 is the most vertically arranged with anode 9, the gas effusion beneficially produced when electrolyte flow and cell reaction, also The electrolyte material solidification of local in advantageously reducing the impurity in metal product and avoiding burner hearth.

If desired, anode 9 continuously along being electrolysed the parallel planar horizontal of work surface with negative electrode 8 or vertical slightly can move back and forth, On the premise of the spacing keeping negative electrode 8 and anode 9 is constant, it is continuously agitated electrolyte, oxide can be accelerated at electrolyte In fusing speed, keep the uniformity consistency of oxide concentration in electrolyte, it is also possible to avoid the occurrence of or extinguish " anode effect ", Anode 9 can be departed from the gas of accelerating anode electrolysis work surface attachment and escape.Comparatively speaking, due to anode 9 height with Negative electrode 8 is essentially identical, anode 9 along be electrolysed with negative electrode 8 the parallel planar horizontal of work surface move be more beneficial for keeping anode 9 with The electrolysis work surface of negative electrode 8 matches, and motion amplitude can be bigger than along perpendicular planar movement.

Play and accelerate oxide fusing speed in the electrolyte owing to anode 9 can stir electrolyte and keep raw material in electrolyte The uniformity consistency of concentration, feed pipe 1 can stretch into directly to be concentrated by electrolysis raw material in electrolyte and join in electrolyte, make electricity Solve the steam such as the gas isolation of raw material and electrolysis by-product, it is to avoid electrolysis raw material is elegant and lose with steam.

The distance of negative and positive interpolar is adjustable so that electrolytic furnace production stability is good, and current fluctuation is little, stable yield.Electricity can be improved The service efficiency in source, makes Faradaic current stabilize to source nominal output electric current, fully improves power utilization rate, it is to avoid the big horse of power supply Draw the defect of dolly；More than 2 electrolytic furnaces can be together in series shared power supply with identical Faradaic current, save device resource And reduce power consumption further.

Increase seal closure 4 latter aspect and solve the graphite in the anode and cell body that the electrolytic furnace opened type structure of prior art brings Etc. material oxidation seriously corroded, the defect such as anode effective rate of utilization is low, fused salt volatilization loss is serious, thermal loss is big, reduce Temperature outside the above seal closure of burner hearth 4 also decreases dust, significantly reduces corrosion and the resistance of positive wire；On the other hand It is easy to collection and processes electrolytic waste gas, be conducive to protection environment and improve operating condition；Furthermore, seal closure 4 can also become adjustment The brace foundation of parts 3, plays the effect simplifying structure.

Antiseepage insulating element 20 is set between the terminals 81 and furnace wall 6, heat-insulation layer 16 and shell 7 of negative electrode 8 and solves stove Electrolyte in thorax 5 easily leaks out to the defect outside furnace shell 7 along negative electrode 8 outer surface.Ensure that electrolytic furnace long-term stable operation, prolong Grow the service life of electrolytic furnace, reduce use cost.Antiseepage insulating element 20 can make an entirety, it is also possible at stove In wall 5, heat-insulation layer 16 individually or be respectively provided with.Antiseepage insulating element 20 can when being respectively provided with in furnace wall 5, heat-insulation layer 16 With the material that the different choice according to operating temperature is different, improve anti-seepage effect.Achieve anti-just because of antiseepage insulating element 20 The function that only electrolyte oozes out along negative electrode 8 so that negative electrode 8 can implement to draw the technical side of terminals 81 from the side of shell 7 Case.Overcome the Chinese patent application that publication No. is CN102925931A disclosed " negative electrode (1) one end and negative electrode busbar (2) Connecting and imbed in sidewall furnace lining, insulative sidewall (3) " technical scheme causes negative electrode (1) and negative electrode busbar (2) junction inconvenience dimension Protecting and reduce resistance, influence each other the defects such as inconvenience construction with sidewall furnace lining, insulative sidewall (3).

Negative electrode 8 is drawn in the side of shell 7, decreases the parts on burner hearth, it is simple to install the adjustment controlling anode 9 motion Parts 3.The most also making negative electrode 8 and power line thereof avoid the high temperature corrosion district of upper furnace, the negative electrode 8 in burner hearth soaks completely Bubble in the electrolyte, not with air contact, not only improves reduction resistance and is conducive to again increasing the service life.

The jacket water (J.W.) cooler 12 on external terminal 81 surface being positioned at shell 7 effectively reduces the temperature of terminals 81, and then reduces Resistance, improves electrical efficiency.Relatively low cathode temperature also helps and prevents electrolyte along negative electrode 8 seepage outside furnace wall 6.

One end of crucible 10 is less relative to other end width and the degree of depth is shallower is conducive to the liquid metal product in crucible 10 to relatively Deep one end is concentrated, and is beneficial to arrange the ejector of product and take out product.

KG6000A power supply, main technique technical specification: electrolysis temperature 1030-1100 DEG C, electrolysis electricity is used during electrolytic metal neodymium Flow about 6000A, electric power output voltage 6.5V, neodymium metal electricity unit consumption 5.2kW h/ (kgNd).

KG6000A power supply, main technique technical specification: electrolysis temperature 950-1050 DEG C, Faradaic current is used during electrolytic metal praseodymium About 6000A, electric power output voltage 6.3V, neodymium metal electricity unit consumption 5.2kW h/ (kgPr).

Embodiment 2

See Fig. 2, Fig. 7.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, water cooler 12, heat-insulation layer 16 and antiseepage insulating element 20.Heat-insulation layer 16, furnace wall is had in described shell 7 6, the cavity in furnace wall 6 forms open-topped burner hearth 5.It is provided with seal closure 4 on shell 7 to be covered in wherein by shell 7.Institute 2 pieces of negative electrodes 8a, 8b and 3 pieces of anodes 9a, 9b, 9c it are provided with in stating burner hearth 5.Described each negative electrode 8 is metallic plate, at shell 7 Outside be terminals 81 to one end of furnace wall 6 inwall, the other end outside shell 7 through shell 7 and heat-insulation layer 16, furnace wall 6 Vertically it is suspended in burner hearth 5, is sealingly fastened in furnace wall 6, heat-insulation layer 16 and shell 7 by antiseepage insulating element 20.Institute State anode 9a, 9b, 9c respective upper end 91a, 91b, 91c and be each passed through seal closure 4 with to be positioned at seal closure corresponding on 4 Adjusting parts 3a, 3b, 3c to connect, the anode 9 that each adjustment parts 3 control correspondence respectively moves.Each anode 9 and each negative electrode 8 The most parallel, the both sides of each negative electrode 8 hang 1 piece of anode 9 respectively, and negative electrode 8 is alternately arranged with anode 9.Described each adjustment parts 3 The anode 9 that can control correspondence respectively lifts and/or around moves.The cross section of described crucible 10 is trapezoidal, is placed in stove Being positioned at below two pieces of negative electrodes 8 bottom thorax 5, along keeping level on it, one jiao, bottom is deeper relative to remaining each pull degree.Described Terminals 81 surface that water cooler 12 is arranged on outside shell 7 keeps suitable distance with shell 7.Water cooler 12 and shell 7 keep suitable distance can save the insulant arranged therebetween when water cooler 12 directly contacts with shell 7.

Being two-sided electrolysis owing to being positioned at the anode 9b of centre, the most two-sided consumption, anode 9b bis-is electrolysed work surface and negative electrode 8a, 8b Distance constantly increase, and being likely to occur anode 9b bis-, to be electrolysed work surface depletion rate different, make the left electrolysis face of anode 9b with The distance of negative electrode 8a is different with the distance of negative electrode 8b from the right electrolysis face of anode 9b.Cause the electrolytic speed that each electrolysis is interval Uneven, that different electrolysis are interval electrolysis material concentration difference increase.Electrolysis in the electrolysis interval that electrolysis material concentration is too high is former Material fails to be electrolysed completely and will sink down into furnace bottom, and the electrolysis interval being electrolysed material concentration too low may go out because lacking electrolysis raw material Existing anode effect.Now can move the left and right electrolysis face so that anode 9b and negative electrode by adjusting parts 3b control anode 9b Distance between 8a, 8b is mutually adapted.Left and right electrolysis face according to anode 9b and the change of negative electrode 8a, 8b spacing, go back The spacing in face and negative electrode 8a, 8b can be electrolysed by adjusting the most corresponding anode 9a, the anode 9c of adjusting of parts 3a, 3c, reach The purpose being uniformly electrolysed to each electrolysis zone.

During electrolytic metal lanthanum, anode 9 top is connected with positive source by wire, two terminals 81 after shell 7 loong shunt and The negative pole of power supply connects.The raw materials such as lanthanum compound enter in burner hearth 5 from feed pipe 1, and melted electrolyte is by burner hearth 5 Negative electrode 8 is completely soaked.After switching on power, lanthanum compound is electrolyzed to produce lanthanoid metal liquid on negative electrode 8 and flows to crucible 10 along negative electrode 8 And in being collected in crucible 10 and from trend deeper one end concentration.Need to adjust the techniques such as electrolytic furnace voltage, electric current, electric current density During parameter, can by adjust parts 3 control anode 9 lift or movable change anode 9 be effectively electrolysed area, electric current The technological parameters such as density, it is also possible to by adjust parts 3 control anode 9 move left and right change negative and positive two interpolar distance reach adjust The purpose of whole technological parameter.

Trapezoidal can the reaching in the cross section of crucible 10 reduces the materials making crucible 10, economizes on resources and prevents crucible 10 from deforming Purpose, also helps and comes out of the stove.

Main electrolysis process technical specification: electrolysis temperature 950-1000 DEG C, Faradaic current about 8000A, electric power output voltage 6.6V, Lanthanoid metal electricity unit consumption 5.5kW h/ (kgLa).

Embodiment 3

See Fig. 3, Fig. 7.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, passage 11, jacket water (J.W.) cooler 12, heat-insulation layer 16 and antiseepage insulating element 20.In described shell 7 successively Having heat-insulation layer 16 and furnace wall 6, the cavity in furnace wall 6 forms open-topped burner hearth 5, and burner hearth 5 top is provided with seal closure 4 and covers It is combined on heat-insulation layer 16.2 pieces of negative electrodes 8 and 4 pieces of anodes 9 it are provided with in described burner hearth 5.Described each negative electrode 8 one end is from shell Vertically being suspended in burner hearth 5 through shell 7 and heat-insulation layer 16, furnace wall 6 outside 7, the other end outside shell 7 becomes and connects Line end 81, is connected with the negative pole of power supply outside body of heater；Each negative electrode 8 is sealingly fastened in shell 7 and heat-insulation layer 16, furnace wall 6 respectively In, there is antiseepage insulating element 20 between negative electrode 8 and furnace wall 6, heat-insulation layer 16 and shell 7.Described adjustment parts 3 also include even Bar 33, wherein adjusts parts 3 and is positioned on seal closure 4, and connecting rod 33 is connected through seal closure 4 with each graphite anode 9.Institute State adjustment parts 3 rectangular by described anode 9, be fastened on the lower end of connecting rod 33, the most each in the both sides of every piece of negative electrode 8 Hang one piece of anode 9.Described adjustment parts 3 control anode 9 and lift and/or around move, and adjust parts 3 all right Control anode 9 to rotate around horizontal line and/or plumb line.One crucible 10, two earthenwares are respectively set bottom burner hearth 5 below each negative electrode 8 The passage 11 of two crucibles 10 it is communicated with between crucible 10.Described jacket water (J.W.) cooler 12 is arranged on the terminals outside shell 7 81 surfaces.

During electrolysis praseodymium neodymium alloy, described graphite anode 9 is connected with positive source, and terminals 81 are connected with power cathode.Burner hearth 5 Interior negative electrode 8 is immersed in the materials such as fused salt, and after switching on power, rare earth compound is electrolyzed to produce hybrid metal liquid on negative electrode 8 Flow down along negative electrode 8 and be collected in crucible 10.When needing to adjust the technological parameters such as electrolytic furnace voltage, electric current density, can pass through Adjustment parts 3 control anode 9 and lift and/or move forward and backward, rotate tune such as changing effective conductive area of anode 9, electric current density Whole corresponding process parameters, it is also possible to the distance controlling anode 9 side-to-side movement change negative and positive two interpolar by adjusting parts 3 reaches to adjust The purpose of whole corresponding process parameters.

Negative electrode 8 is used directly to be arranged in parallel with anode 9 heavily fortified point, beneficially reacting gas effusion.In the both sides of every piece of negative electrode 8 abreast One piece of anode 9 of each suspension, can individually adjust any block anode 9, it is simple to control steadily to produce.

If desired, anode 9 can be controlled and the most slightly lift and/or movable to stir electrolyte, make electrolyte more Uniformly and/or accelerate the effusion of gas.

After arranging passage 11, the praseodymium neodymium alloy being electrolysed generation from two negative electrodes 8 respectively eventually enters into same crucible 10, can be only Take out product from a crucible 10, overcome the defect that multiple discharging device need to be set respectively when each crucible 10 takes out product, Improve the concordance of product simultaneously.

Arrange many group anode and cathode with the present embodiment structure can realize maximizing, coordinate with Chinese patent ZL201320875408.4 etc. Use facilitates implementation automatization, and more energy-conservation, it is achieved cleaning produces.

HISFB-10000A high frequency switch power, main technique technical specification: electrolysis temperature is used during electrolysis praseodymium neodymium alloy 1000-1080 DEG C, Faradaic current about 10000A, electric power output voltage 6.4V, praseodymium neodymium alloy electricity unit consumption 5.1kW h/ (kgPrNd).

Embodiment 4

See Fig. 1, Fig. 4.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, heat-insulation layer 16 and antiseepage insulating element 20.Having furnace wall 6 in described shell 7, the cavity in furnace wall 6 forms top The burner hearth 5 of portion's opening, burner hearth 5 top is provided with seal closure 4.2 pieces of plate-like cathodes 8 and 2 pieces of anodes 9 it are provided with in described burner hearth 5. Described two negative electrodes 8 are respectively arranged with one end and are suspended in burner hearth through shell 7 and heat-insulation layer 16, furnace wall 6 from the both sides of shell 7 in opposite directions respectively Being in same vertical plane internal phase in 5 to be not in contact with each other, the other end outside shell 7 becomes respective terminals 81；Each negative electrode 8 are sealingly fastened in shell 7 and heat-insulation layer 16, furnace wall 6 by antiseepage insulating element 20 respectively.Described anode 9 is rectangular, Size matches with two negative electrodes 8 size in burner hearth 5, is connected by screw, with negative electrode 8 with the connecting rod 33 adjusting parts 3 Hang on the both sides of negative electrode 8 abreast.Described adjustment parts 3 can control anode 9 and lift and/or around move.Institute State crucible 10 to be placed in bottom burner hearth 5 and be positioned at below two negative electrodes 8.

2 pieces of negative electrodes 8 are used to arrange the most in opposite directions, it is possible to use to be easier to the less cathode material obtained, reduce the moon Pole cost.

During electrolytic metal praseodymium, anode 9 is connected with positive source, terminals 81 outside body of heater respectively negative pole with power supply be connected.

HISFB-10000A high frequency switch power, main technique technical specification: electrolysis temperature is used during electrolytic metal praseodymium 950-1050 DEG C, Faradaic current about 10000A, electric power output voltage 6.3V, neodymium metal electricity unit consumption 5.2kW h/ (kgPr).

Embodiment 5

See Fig. 1, Fig. 6, Fig. 8.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, cooler 12b, heat-insulation layer 16 and antiseepage insulating element 20.Heat-insulation layer 16 is had from the outside to the core in described shell 7 With the furnace wall 6 built up by graphite material, the cavity in furnace wall 6 forms open-topped burner hearth 5, and burner hearth 5 top is provided with seal closure 4 cover on heat-insulation layer 16.2 pieces of negative electrodes 8 and 2 pieces of anodes 9 it are provided with in described burner hearth 5.Described two negative electrodes 8 are tabular, It is mutually permanently connected in the both sides of shell 7 are in same vertical plane through shell 7 and heat-insulation layer 16, furnace wall 6 in opposite directions respectively, The other end outside furnace wall 6 becomes respective terminals 81；Each negative electrode 8 is sealingly fastened in shell 7 and heat-insulation layer 16, furnace wall In 6, between negative electrode 8 and shell 7 and heat-insulation layer 16, furnace wall 6, there is antiseepage insulating element 20.Described anode 9 is rectangular, greatly Little match with two negative electrodes 8 size in burner hearth 5, upper end be positioned on seal closure 4 and through the tune of seal closure 4 Connecting rod 33 lower end of integeral part 3 is connected with, with the both sides that negative electrode 8 hangs on negative electrode 8 abreast.Described adjustment parts 3 Anode 9 can be controlled lift and/or around move.Described crucible 10 is placed in bottom burner hearth 5 and is positioned at below negative electrode 8. In the terminals 81 of negative electrode 8, there is endoporus 12a, cool down the terminals 81 of negative electrode 8 in order to water flowing and be positioned at shell 7 and insulation Part negative electrode 8 in layer 16, furnace wall 6 and antiseepage insulating element 20.Described cooler 12b is provided with coolant and imports and exports (in figure Not shown) outside that is wrapped in antiseepage insulating element 20 is adjacent to furnace wall 6.Described cooler 12b can also keep suitable with furnace wall 6 Work as distance.

Use 2 pieces of negative electrodes 8 to be mutually permanently connected in same vertical plane, be conducive to strengthening the stability of negative electrode 8.And it is permissible Use the shorter cathode material being more easy to obtain.

Terminals 81 at negative electrode 8 offer endoporus 12a can improve the terminals 81 being pointed in furnace wall 6, heat-insulation layer 16 and The cooling effect of its neighbouring part negative electrode 8 grade, reduces resistance.Simultaneously because the terminals 81 in furnace wall 6, heat-insulation layer 16 Temperature reduce, the liquid solidification such as the electrolyte that beneficially may ooze out along negative electrode 8, stop the liquid such as fused salt to ooze outside shell.

Cooler 12b be wrapped in the outside of antiseepage insulating element 20 be adjacent to furnace wall 6 can effectively cool down antiseepage insulating element 20 and Furnace wall 6, strengthening stops the effect that the liquid such as electrolyte ooze out further.

Using HISFB-10000A high frequency switch power during electrolytic metal neodymium, anode 9 is connected with positive source.Two terminals 81 Can be connected with the negative pole of power supply respectively, it is also possible to only one of which terminals 81 are connected with the negative pole of power supply.Two terminals 81 points The electric current of terminals 81 and wire can be reduced with the negative pole of power supply when not being connected.

Main technique technical specification: electrolysis temperature 1030-1100 DEG C, Faradaic current about 10000A, electric power output voltage 6.4V, Neodymium metal electricity unit consumption 5.1kW h/ (kgNd).

Embodiment 6

See Fig. 3, Fig. 9, Figure 10.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, jacket water (J.W.) cooler 12, drainage plate 15, heat-insulation layer 16 and antiseepage insulating element 20.Depend in described shell 7 Secondary have heat-insulation layer 16 and furnace wall 6, and the cavity in furnace wall 6 forms open-topped burner hearth 5, and burner hearth 5 top is provided with seal closure 4 Cover on heat-insulation layer 16.3 pieces of negative electrodes 8 and 6 pieces of anodes 9 it are provided with in described burner hearth 5.Described each negative electrode 8 is by metallic plate system Becoming, one end arrives offside furnace wall in being vertically placed in burner hearth 5 through shell 7, heat-insulation layer 16 and furnace wall 6 outside shell 7 In 6 and have antiseepage insulating element 20 to be isolated with furnace wall 6 by each negative electrode 8；The other end outside shell 7 becomes terminals 81； Each terminals 81 are sealingly fastened in shell 7, heat-insulation layer 16 and furnace wall 6, each terminals 81 and shell 7, heat-insulation layer 16 and Antiseepage insulating element 20 is all had between furnace wall 6.Described drainage plate 15 is made up of metal material, totally 6, lays respectively at burner hearth 5 Below interior each antiseepage insulating element 20 and negative electrode 8, the furnace wall 6 under antiseepage insulating element 20 tilts to crucible 10, terminates in earthenware Top in crucible 10 inwall.Described anode 9 is rectangular by the splicing of polylith graphite, detachably connects with the connecting rod 33 adjusting parts 3 Connect, respectively hang one piece of anode 9 in the both sides of every piece of negative electrode 8.Described adjustment parts 3 can control anode 9 lifting and/ Or around move.One crucible 10 is respectively set bottom burner hearth 5 below each negative electrode 8.Described jacket water (J.W.) cooler 12a pacifies It is contained in terminals 81 surface outside shell 7.Copper pipe 12b is also preset in the terminals 81 of negative electrode 8, cold in order to water flowing But the terminals 81 of negative electrode 8 and be positioned at the part negative electrode 8 at furnace wall 6, heat-insulation layer 16, antiseepage insulating element 20.

Negative electrode 8 one end in burner hearth is fixed in the furnace wall 6 of terminals 81 offside and is improved what negative electrode 8 was affected by self gravitation Situation, reduces negative electrode 8 operationally because of the probability of self gravitation deformation.

The rare earth metal fallen near furnace wall 6 on negative electrode 8 can be introduced in crucible 10 by drainage plate 15, it is to avoid at crucible 10 The change that the rare earth metal of negative electrode 8 generation outside inwall vertical line and between furnace wall 6 and negative electrode 8 cause during installing, using Shape so that rare earth metal product flow to outside crucible 10 along the negative electrode 8 of deformation, causes direct with the graphite material constructing furnace wall 6 After contact, rare earth metal product carbon content increases and causes the defect that product quality declines.Generally fall in the rare earth gold outside crucible 10 Belong to or the carbon content of alloy product can be increased to about 0.1wt% by about 0.02wt%, product quality will be had a strong impact on.

Using HISFB-15000A high frequency switch power during electrolysis praseodymium neodymium alloy, each anode 9 is connected with positive source respectively.Each the moon Pole 8 is connected with the negative pole of power supply respectively.Main technique technical specification: electrolysis temperature 1000-1080 DEG C, Faradaic current about 15000A, Electric power output voltage 6.2V, praseodymium neodymium alloy electricity unit consumption 5kW h/ (kgPrNd).

Embodiment 7

See Fig. 3, Figure 11.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, jacket water (J.W.) cooler 12, drainage plate 15, heat-insulation layer 16 and antiseepage insulating element 20.Have in described shell 7 Furnace wall 6, the cavity in furnace wall 6 forms open-topped burner hearth 5, and burner hearth 5 top is provided with seal closure 4.Set in described burner hearth 5 There are 3 pieces of negative electrodes 8 and 6 pieces of anodes 9.Described each negative electrode 8 is made up of many rectangular metal rod overlappings respectively, and two ends are respectively welded Integral, two ends are each passed through shell 7 and furnace wall 6 is vertically arranged；Either end outside shell 7 all can become terminals 81 It is connected with the negative pole of power supply；Each negative electrode 8 is sealingly fastened in furnace wall 6, between each negative electrode 8 two ends and furnace wall 6 and shell 7 all There is antiseepage insulating element 20.Described drainage plate 15 is made up of metal material, and totally 6, in laying respectively at burner hearth 5, each antiseepage is exhausted Below edge part 20 and negative electrode 8, tilt to crucible 10 from antiseepage insulating element 20, terminate in above crucible 10 inwall.Described Anode 9 is rectangular, and upper end is connected with adjusting parts 3, respectively hangs one piece of anode 9 in the both sides of every piece of negative electrode 8.Institute State anode 9 to be connected with positive source by wire.Described adjustment parts 3 can control anode 9 and lift and/or around transport Dynamic.One crucible 10 is respectively set bottom burner hearth 5 below each negative electrode 8.Described jacket water (J.W.) cooler 12 is arranged on outside shell 7 Terminals 81 surface.

Rectangular bars metal easily obtains, and intensity is big, makes and easy for installation, uses reliable.

HISFB-15000A high frequency switch power, main technique technical specification: electrolysis temperature is used during electrolysis praseodymium neodymium alloy 1000-1080 DEG C, Faradaic current about 15000A, electric power output voltage 6.1V, praseodymium neodymium alloy electricity unit consumption 4.9kW h/ (kgPrNd).

Embodiment 8

See Fig. 1, Fig. 5, Fig. 8.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, cooler 12b, heat-insulation layer 16 and antiseepage insulating element 20.Heat-insulation layer 16 is had from the outside to the core in described shell 7 With the furnace wall 6 built up by graphite material, the cavity in furnace wall 6 forms open-topped burner hearth 5, and burner hearth 5 top is provided with seal closure 4 cover on heat-insulation layer 16.1 piece of negative electrode 8 and 2 pieces of anodes 9 it are provided with in described burner hearth 5.Described negative electrode 8 is tabular, two End is each passed through shell 7 and heat-insulation layer 16, furnace wall 6 become two terminals 81 outside shell 7；Two terminals 81 are respectively It is sealingly fastened in shell 7 and heat-insulation layer 16, the furnace wall 6 of both sides, between negative electrode 8 and shell 7 and heat-insulation layer 16, furnace wall 6 There is antiseepage insulating element 20.Described anode 9 is rectangular, matches with the negative electrode 8 size in burner hearth 5, close with being positioned at The connecting rod 33 through seal closure 4 adjusting parts 3 on sealing cover 4 is connected with, and hangs on negative electrode abreast with negative electrode 8 The both sides of 8.Described adjustment parts 3 can control anode 9 by connecting rod 33 and lift and/or around move, rotate. Described rotation includes rotating around horizontal line and/or vertical line.Described crucible 10 is placed in bottom burner hearth 5 and is positioned at below negative electrode 8.? Endoporus 12a is had, in order to the water flowing cooling terminals 81 of negative electrode 8 and be positioned at shell 7 and antiseepage is exhausted in the terminals 81 of negative electrode 8 Edge part 20.

Monoblock negative electrode 8 passes and is fixed in shell 7 and heat-insulation layer 16, furnace wall 6, and the intensity of negative electrode 8 is good, bears from heavy sensation of the body Power ability is excellent.

Terminals 81 one end of negative electrode 8 offer endoporus 12a can improve the terminals 81 being pointed in furnace wall 6 and near The cooling effect of part negative electrode 8 grade, reduce resistance.Simultaneously because the temperature of the terminals 81 in furnace wall 6 reduces, be conducive to May solidify along liquid such as the electrolyte that negative electrode 8 oozes out, stop the liquid such as fused salt to ooze outside shell.

Cooler 12b be wrapped in the outside of antiseepage insulating element 20 be adjacent to furnace wall 6 can effectively cool down antiseepage insulating element 20 and Furnace wall 6, strengthening stops the effect that the liquid such as electrolyte ooze out further.

Using HISFB-10000A high frequency switch power during electrolytic metal neodymium, anode 9 is connected with positive source.Two terminals 81 Can be connected with the negative pole of power supply respectively, it is also possible to only one of which terminals 81 are connected with the negative pole of power supply.Two terminals 81 points The electric current of terminals 81 and wire can be reduced with the negative pole of power supply when not being connected.Main technique technical specification: electrolysis temperature 1030-1100 DEG C, Faradaic current about 10000A, electric power output voltage 6.4V, neodymium metal electricity unit consumption 5.1kW h/ (kgPrNd).

Comparative example 1

See Figure 15

Existing 5KA rare earth molten-salt electrolysis stove, including stove cover plate 30, negative electrode 31, anode conducting plate 32, corundum packing ring 33, protects Temperature layer 34, furnace wall 35, anode 36, stove outer covering 37 and molybdenum crucible 38.Described stove outer covering 37 is made up of Plate Welding, by protecting Temperature cotton with insulating brick etc. material build into heat-insulation layer 34, graphite crucible and packing material by laying bricks or stones and build up graphite cuvette furnace wall 35.Described furnace wall Cavity in 35 forms burner hearth 39.38,4 pieces of anodes 36 of 1 molybdenum crucible and 1 negative electrode it is provided with in described graphite cuvette burner hearth 39 31, negative electrode 31 vertical hanging is in burner hearth 39, above molybdenum crucible 38, and anode 36 hangs in burner hearth 39 around negative electrode 31. Negative electrode 31 is connected with power cathode.Described molybdenum crucible 38 is positioned at bottom burner hearth 39.The lower end of described anode conducting plate 32 and sun Pole 36 bolt connects, and upper end is connected with positive source.

This comparative example 5KA electrolytic furnace is used to use KG6000A power supply, the main technique technical specification of electrolysis production neodymium metal: electricity Solving temperature 1030-1150 DEG C, Faradaic current about 5000A, tank voltage 9.5V, electricity unit consumption is 8.8kW h/ (kgNd).

The existing Rare Earth Electrolysis stove type of furnace has the disadvantage that the negative electrode upper hanging type structure that fire door opens wide, gas sampling difficulty, work Bad environments, labor intensity is big；Small scale, tank voltage are high, furnace temperature is high, energy consumption is high, the little structure of fire door upper space is complicated, It is difficult to realize automatization and maximization.Properly functioning for ensureing electrolytic furnace, for convenience of adjusting process parameter, generally use than reality Need bigger power supply.I.e. power supply is allowed some leeway, utilization rate and inefficient during normal electrolysis.

Embodiment 9

See Fig. 1, Fig. 7, Figure 12.

It is electrolysed bench of burners, including shared power supply 12 and electrolytic furnace I, II.2 electrolytic furnaces I, II are connected, makes 2 electrolytic furnaces With shared 1 power supply 12 built-up circuit 41 (thick line in Figure 12).I.e. the anode 9 of electrolytic furnace I is together with the positive pole of power supply 12 Connecting, the negative electrode 8 of electrolytic furnace II connects with the negative pole of power supply 12 together, the negative electrode 8 of electrolytic furnace I and the anode 9 of electrolytic furnace II Connect composition electrolysis bench of burners.

Described electrolytic furnace I, II is identical, for electrolytic furnace described in embodiment 1.Described shared power supply 12 uses KG6000A power supply.

During electrolysis, shared power supply 12 provide total voltage and Faradaic current needed for electrolytic furnace I, II.Need to adjust each electrolytic furnace During the technological parameters such as Faradaic current, electric current density, temperature, respective anode 9 can be controlled by the adjustment parts 3 of each electrolytic furnace Lifting or seesaw change effective conductive area of anode 9, electric current density etc. adjust corresponding process parameters, it is also possible to by adjusting Integeral part 3 control anode 9 side-to-side movement change negative and positive two interpolar distance reach adjust corresponding process parameters purpose.

During electrolysis, electrolytic furnace I produces neodymium metal, and electrolytic furnace II produces metal praseodymium.Main technique technical specification is as follows:

Electrolytic furnace I: electrolysis temperature 1030-1100 DEG C, Faradaic current about 6000A, neodymium metal electricity unit consumption 4.8kW h/ (kgNd).

Electrolytic furnace II: electrolysis temperature 1000-1050 DEG C, Faradaic current about 6000A, metal praseodymium electricity unit consumption 4.7kW h/ (kgPr).

Share power supply 12 output voltage 12.7V, export electric current 6000A.

Share the loss advantageously reducing electric energy after power supply 12 output voltage raises.

Change that produce after kind or model/specification can also only each electrolytic furnace in regulating YIN and YANG the two poles of the earth distance i.e. adjustable electrolytic furnace group Related process parameters.

Embodiment 10

See Fig. 3, Fig. 9, Figure 10, Figure 13.

It is electrolysed bench of burners, including 12,4 electrolytic furnaces (A, N, P, Z) of 1 shared power supply, 2 accessory power supplys (13N, 13P) And 8 switches (17A, 18A, 17N, 18N, 17P, 18P, 17Z and 18Z).4 electrolytic furnaces are described in embodiment 6 Electrolytic furnace.Described shared power supply 12 is HISFB-15000A high frequency switch power.

The anode 9A of described electrolytic furnace A has switch together with the positive pole connection of power supply 12, anode 9A together between power supply 12 The anode 9N of the negative electrode 8A and electrolytic furnace N of 18A, electrolytic furnace A is connected, and has switch 18N between negative electrode 8A and anode 9N, electricity The anode 9P of the negative electrode 8N and electrolytic furnace P that solve stove N is connected, has switch 18P, electrolytic furnace P between negative electrode 8N and anode 9P The anode 9Z of negative electrode 8P and electrolytic furnace Z be connected, between negative electrode 8P and anode 9Z, have switch 18Z, the negative electrode of electrolytic furnace Z 8Z connects, with the negative pole of power supply 12, the major loop 41 that composition electrolysis is bench of burners together.

Described electrolytic furnace N is also equipped with accessory power supply 13N, electrolytic furnace P and is also equipped with accessory power supply 13P.

The positive pole of described accessory power supply 13N is connected with anode 9N, and negative pole is connected with negative electrode 8N.Described accessory power supply 13P is just Pole is connected with anode 9P, and negative pole is connected with negative electrode 8P.

Described switch 17A and wire composition control circuit 42A is connected in parallel on the two ends of electrolytic furnace A, control circuit in major loop 41 42A combines to cut stop electrolytic furnace A with switch 18A.Described switch 17N and wire composition control circuit 42N is connected in parallel on major loop The two ends of electrolytic furnace N in 41, control circuit 42N is combined to cut stop electrolytic furnace N with switch 18N.Described switch 17P with lead Line composition control circuit 42P is connected in parallel on the two ends of electrolytic furnace P in major loop 41, and control circuit 42P is combined permissible with switch 18P Cut and stop electrolytic furnace P.Described switch 17Z and wire composition control circuit 42Z is connected in parallel in the circuit of electrolytic furnace Z, control circuit 42Z combines to cut stop electrolytic furnace Z with switch 18Z.

Each control circuit 42 compound action of above-mentioned each switch 18 and correspondence, can be bench of burners from electrolysis by electrolytic furnace A, N, P, Z In arbitrarily cut and stop and do not affect the use of remaining electrolytic furnace.

During electrolysis, shared power supply 12 total voltage and by being electrolysed bench of burners middle Faradaic current needed for providing electrolytic furnace A, N, P, Z Needed for low electrolytic furnace A, Z, electric current is powered.Need to adjust the techniques such as the Faradaic current of remaining each electrolytic furnace, electric current density, temperature During parameter, can by adjust parts 3 control anode 9 lift or seesaw change effective conductive area of anode 9, electric current Density etc. adjust corresponding process parameters, it is also possible to by adjust parts 3 control anode 9 side-to-side movement change negative and positive two interpolar away from From reaching to adjust the purpose of corresponding process parameters.If desired, it is also possible to control each accessory power supply 13 and adjust the electrolysis of corresponding electrolytic furnace The technological parameters such as furnace temperature, electric current, electric current density.

In production, electrolytic furnace A, Z mainly adjust anode distance control electrolytic furnace A, Z electrolysis temperature with anode 9A, 9Z side-to-side movement Deng technological parameter.Electrolytic furnace N, while adjusting pole span with anode 9N side-to-side movement, is aided with accessory power supply 13N and exports electric current 100A-600A controls the technological parameters such as electrolytic furnace temperature.Electrolytic furnace P is adjusting while pole span with anode 9P side-to-side movement, It is aided with accessory power supply 13P output electric current 200A-500A and controls the technological parameters such as electrolytic furnace temperature.

On the basis of shared power supply 12 stable power-supplying, the sensitiveest with regulating YIN and YANG the two poles of the earth pole span in above-mentioned regulative mode, therefore exist Should first regulating YIN and YANG the two poles of the earth pole span during adjusting process parameter.When optimal processing parameter can't be reached in the way of adjusting pole span, Each accessory power supply 13 can also be controlled and adjust the technological parameters such as the electrolytic furnace temperature of corresponding electrolytic furnace, electric current, electric current density.

After arbitrarily cutting and stop electrolytic furnace A and/or N, P, Z in electrolysis being bench of burners, should adjust the output of shared power supply 12 total voltage and/ Or electric current adjusts corresponding process parameters.Can also respectively control accessory power supply 13 adjust the corresponding electrolytic furnace temperature of electrolytic furnace, electric current, The technological parameters such as electric current density.

Main electrolysis process technical specification:

Electrolytic furnace A, N, P, Z all produce praseodymium neodymium alloy, share power supply 12 output voltage 24.6V, electric current about 15000A, electricity Solve temperature 1000-1080 DEG C, praseodymium neodymium alloy electricity unit consumption 4.5kW h/ (kgPrNd).

Share power supply 12 output voltage and be individually electrolysed electric power output voltage sum during praseodymium neodymium alloy less than 4 electrolytic furnace A.

Embodiment 11

See Fig. 1, Figure 11, Figure 14.

It is electrolysed bench of burners, including shared power supply 12, accessory power supply 13 and electrolytic furnace A, Z.

Described electrolytic furnace A, Z are identical, for electrolytic furnace described in embodiment 7.

Described shared power supply 12 is HISFB-15000A high frequency switch power.

Sharing power supply 12 to connect with electrolytic furnace A, electrolytic furnace Z, the electrolytic circuit of formation is major loop 41.The i.e. sun of electrolytic furnace A Pole A9 connects with the positive pole of power supply 12 together, and the negative electrode 8Z of electrolytic furnace Z connects with the negative pole of power supply 12 together, electrolytic furnace A The anode 9Z of negative electrode 8A and electrolytic furnace Z be connected composition electrolysis major loop 41 (heavy line in Figure 14).Accessory power supply 13 is even It is connected on the two ends of electrolytic furnace Z in electrolysis major loop 41.The i.e. positive pole of accessory power supply 12 is connected to the anode Z9 of electrolytic furnace Z, negative Pole is connected to the anode Z8 of electrolytic furnace Z.It is to say, it is common to electrolytic furnace Z with power supply 12 together when accessory power supply 13 works Parallel operation.

During electrolysis praseodymium neodymium alloy, the total voltage bench of burners by the electrolysis of shared power supply 12 output voltage control, and press electricity needed for electrolytic furnace A Stream output electric current provides electric energy needed for electrolytic furnace A, Z.In production, electrolytic furnace A, Z adjust with anode 9A, 9Z side-to-side movement respectively The technological parameters such as the electrolysis temperature of anode distance control electrolytic furnace A, Z, it is also possible to by adjust parts 3A, 3Z control respectively anode 9A, 9Z lifting or seesaw change effective conductive area of anode, electric current density etc. adjust corresponding process parameters.Electrolytic furnace Z also may be used To be aided with accessory power supply Z13 output electric current 100A-600A control electrolytic furnace while adjusting pole span with anode 9Z side-to-side movement The technological parameters such as the Faradaic current of Z, temperature.Can also individually regulate accessory power supply 13Z output electric current 100A-600A and control electricity Solve the technological parameters such as the Faradaic current of stove Z, temperature.The liquid level of the substantially vertical electrolytic liquid of work surface of each negative electrode 8, liquid Neodymium metal falls directly in crucible 10 along negative electrode 8 work surface.Along with the consumption of each anode 9, each parts 3 that adjust control corresponding sun Pole 9 is gradually drawn close to corresponding negative electrode 8, to keep suitable Anode-cathode Distance.Owing to each anode 9 is likely to occur non-when consuming Uniformly consume, therefore, each adjust before and after parts 3 can also control each anode 9 and/or move up and down effectively be electrolysed area to adjust； If desired, each anode 9 can also rotate around horizontal line and/or plumb line to keep as far as possible under the corresponding control adjusting parts 3 It is parallel with negative electrode 8 work surface that anode 9 is electrolysed work surface.The angle that generally anode 9 rotates is within 15 °, the most normal with 3-5 ° With.All motions of above-mentioned anode 9, each contribute to the gas effusion produced during electrolysis.

During electrolysis, electrolytic furnace A, Z all produce praseodymium neodymium alloy: share power supply 12 output voltage 12.4V, export electric current about 15000A； Accessory power supply Z13 exports electric current 100A-600A, electrolysis temperature 1030-1100 DEG C, neodymium metal averagely electricity unit consumption 4.5kW h/ (kgPrNd)。

Embodiment 12

See Fig. 3, Fig. 9, Figure 10, Figure 13.

Be electrolysed bench of burners, including 12,6 electrolytic furnaces (A, B, N, P, Y and Z) of 1 shared power supply, 6 accessory power supplys (13A, 13B, 13N, 13P, 13Y and 13Z) and 12 switches (17A, 18A, 17B, 18B, 17N, 18N, 17P, 18P, 17Y, 18Y, 17Z and 18Z).Described shared power supply 12 is HISFB-15000A high frequency switch power.

The anode 9A of described electrolytic furnace A connects with the positive pole of power supply 12 together, and anode 9A has switch together between power supply 12 The anode 9B of the negative electrode 8A and electrolytic furnace B of 18A, electrolytic furnace A is connected, and has switch 18B between negative electrode 8A and anode 9B, electricity The anode 9N of the negative electrode 8B and electrolytic furnace N that solve stove B is connected, and has switch 18N, electrolytic furnace N between negative electrode 8B and anode 9N The anode 9P of negative electrode 8N and electrolytic furnace P be connected, between negative electrode 8N and anode 9P, have switch 18P, the negative electrode of electrolytic furnace P The anode 9Y of 8P and electrolytic furnace Y is connected, have the negative electrode 8Y of switch 18Y, electrolytic furnace Y between negative electrode 8P and anode 9Y with electric The anode 9Z solving stove Z connects, has the negative electrode 8Z of switch 18Z, electrolytic furnace Z to use power supply together between negative electrode 8Y and anode 9Z The negative pole of 12 connect composition electrolysis bench of burners in share the major loop 41 that power supply 12 is powered simultaneously to each electrolytic furnace.

Each electrolytic furnace is respectively provided with 1 accessory power supply 13, the positive pole of described each accessory power supply 13 and the anode 9 of respective electrolytic furnace Connecting, the negative pole of each accessory power supply 13 is connected with the negative electrode 8 of respective electrolytic furnace.

Described switch 17A and wire composition control circuit 42A is connected in parallel on the two ends of electrolytic furnace A, control circuit in major loop 42 42A combines to cut stop electrolytic furnace A with switch 18A.Described switch 17B and wire composition control circuit 42B is connected in parallel on major loop The two ends of electrolytic furnace B in 42, control circuit 42B is combined to cut stop electrolytic furnace B with switch 18B.Described switch 17N with lead Line composition control circuit 42N is connected in parallel on the electric two ends of electrolytic furnace N in major loop 42, and control circuit 42N is combined with switch 18N can Electrolytic furnace N is stopped to cut.Described switch 17P and wire composition control circuit 42P is connected in parallel on the two ends of electrolytic furnace P in major loop 42, Control circuit 42P is combined to cut stop electrolytic furnace P with switch 18P.Described switch 17Y and wire composition control circuit 42Y is also Being associated in the two ends of electrolytic furnace Y in major loop 42, control circuit 42Y is combined to cut with switch 18Y and is stopped electrolytic furnace Y.Described open Close 17Z and wire composition control circuit 42Z and be connected in parallel on the two ends of electrolytic furnace Z, control circuit 42Z and switch in major loop 42 18Z associating can be cut and be stopped electrolytic furnace Z.

Described electrolytic furnace A, B, N, P, Y and Z are identical, electrolytic furnace used during wherein electrolytic furnace A is embodiment 2.

Each control circuit 42 compound action of above-mentioned each switch 18 and correspondence, can cut any electrolytic furnace in electrolysis is bench of burners and stop And do not affect the use of remaining electrolytic furnace.

During electrolysis, shared power supply 12 needed for providing electrolytic furnace A, B, N, P, Y and Z total voltage and by be electrolysed bench of burners middle electrolysis Electric current needed for the electrolytic furnace A that electric current is minimum is powered.Need to adjust the Faradaic current of remaining each electrolytic furnace, electric current density, temperature Deng technological parameter time, can by adjust parts 3 control anode 9 lift or seesaw change anode 9 effective conductive area, Electric current densities etc. adjust corresponding process parameters, it is also possible to control anode 9 side-to-side movement change negative and positive two interpolar by adjusting parts 3 Distance reach adjust corresponding process parameters purpose.If desired, it is also possible to control each accessory power supply 13 and adjust corresponding electrolytic furnace The technological parameters such as electrolytic furnace temperature, electric current, electric current density.

On the basis of shared power supply 12 stable power-supplying, regulate during the technological parameter of each electrolytic furnace in above-mentioned regulative mode to adjust The negative and positive the two poles of the earth pole span that need to regulate electrolytic furnace is the sensitiveest, therefore should first regulating YIN and YANG the two poles of the earth pole span when adjusting process parameter.When When can't reach optimal processing parameter in the way of adjusting pole span, it is also possible to control each accessory power supply 13 and adjust corresponding electrolytic furnace The technological parameters such as electrolytic furnace temperature, electric current, electric current density.Having only to regulate the technological parameter of one or several electrolytic furnace Time need to regulate the accessory power supply most convenient of electrolytic furnace with regulation.

When accessory power supply output electric current with regulation electrolytic furnace regulates the technological parameter of each electrolytic furnace, owing to need not adjust electrolysis The decomposition voltage of stove, advantageously reduces electrolytic power consumption.

Under the effect cooling down water in jacket water (J.W.) cooler 12, copper pipe 12b, on the one hand the temperature of negative electrode 8 declines, resistance declines, Product power consumption reduces；On the other hand as solidified, when stove Inner electrolysis matter liquid oozes out along negative electrode 8, the electrolyte oozed out in time.

Arbitrarily cut in electrolysis is bench of burners after stopping electrolytic furnace A and/or B, N, P, Y, Z, the output of shared power supply 12 can be adjusted Total voltage and/or electric current adjust corresponding process parameters.Can also respectively control accessory power supply 13 and adjust the electrolysis furnace temperature of corresponding electrolytic furnace The technological parameters such as degree, electric current, electric current density.

Main electrolysis process technical specification:

Electrolytic furnace A, B, N, P, Y and Z all produce praseodymium neodymium alloy, share power supply 12 output voltage 37.6V, electric current about 15000A, Electrolysis temperature 1000-1080 DEG C, praseodymium neodymium alloy electricity unit consumption 4.4kW h/ (kgPrNd).

In production, each electrolytic furnace adjusts negative electrode 8 and anode 9 the two poles of the earth each electrolytic furnace of distance controlling with anode 9 side-to-side movement the most respectively The technological parameter such as decomposition voltage, electrolysis temperature, accessory power supply A13, B13, Z13 export electric current 100-400A respectively.Electrolytic furnace N, while adjusting pole span with anode N9 side-to-side movement, is aided with accessory power supply N13 output electric current 400-600A and controls electrolytic furnace The technological parameters such as temperature.Electrolytic furnace P, Y are adjusting while pole span with anode P9 side-to-side movement, be aided with accessory power supply P13, Y13 exports electric current 600-900A respectively and controls the technological parameters such as electrolytic furnace temperature.

When needing the technological parameter such as electrolysis temperature adjusting separate unit electrolytic furnace aborning, corresponding accessory power supply 13 can be adjusted and export Electric current, now on electrolysis bench of burners in remaining electrolytic furnace impact less.

Shared power supply 12 output voltage is individually electrolysed the absolute of the difference of the electric power output voltage sum of rare earth metal with each electrolytic furnace Value increases with the electrolytic furnace quantity being electrolysed bench of burners middle work and increases；Product electricity unit consumption is with the electrolytic furnace quantity being electrolysed bench of burners middle work Increase and reduce.

Embodiment 13

See Fig. 2, Fig. 7.

Electrolytic furnace, including feed pipe 1, adjusts parts 3, seal closure 4, burner hearth 5, furnace wall 6, shell 7, negative electrode 8, anode 9, crucible 10, water cooler 12, heat-insulation layer 16 and antiseepage insulating element 20.Heat-insulation layer 16, furnace wall is had in described shell 7 6, the cavity in furnace wall 6 forms open-topped burner hearth 5.It is provided with seal closure 4 on shell 7 to be covered in wherein by shell 7.Institute 2 pieces of negative electrodes 8a, 8b and 3 pieces of anodes 9a, 9b, 9c it are provided with in stating burner hearth 5.Described each negative electrode 8 is metallic plate, at shell 7 Outside be terminals 81 to one end of furnace wall 6 inwall, the other end outside shell 7 through shell 7 and heat-insulation layer 16, furnace wall 6 Vertically it is suspended in burner hearth 5, is sealingly fastened in furnace wall 6, heat-insulation layer 16 and shell 7 by antiseepage insulating element 20.Institute State anode 9a, 9b, 9c respective upper end 91a, 91b, 91c and be each passed through seal closure 4 with to be positioned at seal closure corresponding on 4 Adjusting parts 3a, 3b, 3c to connect, the anode 9 that each adjustment parts 3 control correspondence respectively moves.Each anode 9 and each negative electrode 8 The most parallel, the both sides of each negative electrode 8 hang 1 piece of anode 9 respectively, and negative electrode 8 is alternately arranged with anode 9.Described each adjustment parts 3 The anode 9 that can control correspondence respectively lifts and/or around moves.The cross section of described crucible 10 is trapezoidal, is placed in stove Being positioned at below two pieces of negative electrodes 8 bottom thorax 5, along keeping level on it, one jiao, bottom is deeper relative to remaining each pull degree.Described Terminals 81 surface that water cooler 12 is arranged on outside shell 7 keeps suitable distance with shell 7.Water cooler 12 and shell 7 keep suitable distance can save the insulant arranged therebetween when water cooler 12 directly contacts with shell 7.

Anode 9 top is connected with positive source by wire, and two terminals 81 are connected with the negative pole of power supply after shell 7 loong shunt. The raw materials such as lanthanum compound enter in burner hearth 5 from feed pipe 1, and the negative electrode 8 in burner hearth 5 is completely soaked by melted electrolyte. After switching on power, lanthanum compound is electrolyzed to produce lanthanoid metal liquid on negative electrode 8 and flows to crucible 10 along negative electrode 8 and be collected in crucible Concentrate in 10 and from the deeper one end of trend.When needing to adjust the technological parameters such as electrolytic furnace voltage, electric current, electric current density, Ke Yitong Toning integeral part 3 control anode 9 lift or movable change anode 9 be effectively electrolysed the technological parameter such as area, electric current density, Anode 9 can also be controlled move left and right by adjusting parts 3 and change the distance of negative and positive two interpolar and reach the purpose of adjusting process parameter.

With anhydrous lanthanum chloride for raw material in Chlorides molten salts during electrolytic metal lanthanum, anode 9 depletion rate is slow, thus positive It is little that pole 9 is consumed the negative and positive two die opening change caused.Therefore, the anode 9 between two negative electrodes 8 can use two-sided electricity Solution is to improve the efficiency of anode 9.

Main electrolysis process technical specification: electrolysis temperature 920-980 DEG C, Faradaic current about 8000A, electric power output voltage 10V, Lanthanoid metal electricity unit consumption 10.7kW h/ (kgLa).

Below it is only several optimal ways cited by the present invention, it will be understood by those skilled in the art that embodiment of the present invention is not It is limited to above several, any equivalent transformation made on the basis of the present invention, scope of the invention all should be belonged to.

Claims (10)

1. an electrolysis is bench of burners, including shared power supply (12) and at least 2 electrolytic furnaces；Described each electrolytic furnace include negative electrode (8) and Anode (9), described shared power supply (12) and each electrolytic furnace positive pole according to shared power supply (12) and the anode of First electrolytic furnace Connect, thereafter the anode of every electrolytic furnace is connected with the negative electrode of previous electrolytic furnace, the negative electrode of the last electrolytic furnace and shared The negative pole of power supply (12) connects composition；Sharing power supply (12) is main circuit (41) to the circuit that each electrolytic furnace is powered, and its feature exists Also including adjusting parts (3), furnace wall (6), shell (7) and heat-insulation layer (16) in described each electrolytic furnace, described negative electrode (8) is from shell (7) side is vertically arranged through shell (7), heat-insulation layer (16) and furnace wall (6), is positioned in furnace wall (6) outside shell (7) Part is terminals (81), and described anode (9) hangs on the side of negative electrode (8), and described adjustment parts (3) control anode (9) fortune Dynamic, described anode (9) moves as moving forward and backward, move up and down and/or rotating.

2. electrolysis is bench of burners as claimed in claim 1, it is characterised in that at least 1 electrolytic furnace is also equipped with accessory power supply (13), institute The anode of the positive pole and corresponding electrolytic furnace of stating each accessory power supply (13) connects, the negative pole of accessory power supply (13) and corresponding electrolytic furnace Negative electrode connects.

3. electrolysis is bench of burners as claimed in claim 1, it is characterised in that described anode (9) motion also includes moving left and right.

4. claim 1 or 2, be electrolysed as described in 3 bench of burners, it is characterised in that also include switch and by any electrolytic furnace from electrolytic furnace Group is cut the control circuit (42) stopped.

5. as claimed in claim 2 electrolysis is bench of burners, it is characterised in that include 1 shared power supply (12), 4 electrolytic furnaces A, N, P, Z, 4 accessory power supplys A13, N13, P13, Z13 and 8 switches A1, A2, N1, N2, P1, P2, Z1 and Z2；Described electrolytic furnace also includes Feed pipe (1), seal closure (4), burner hearth (5), furnace wall (6), shell (7), crucible (10), jacket water (J.W.) cooler (12), heat-insulation layer And antiseepage antiseepage insulating element (20) (16)；Having furnace wall (6) in described shell (7), the cavity in furnace wall (6) forms open top Burner hearth (5), burner hearth (5) top is provided with seal closure (4) and covers on heat-insulation layer (16), is provided with 2 pieces of the moon in described burner hearth (5) Pole (8) and 4 pieces of anodes (9)；Described each negative electrode (8) one end vertically suspends through shell (7) and furnace wall (6) outside shell (7) In burner hearth (5), the other end being positioned in furnace wall (6) outside shell (7) becomes terminals (81), outer and power supply at body of heater Negative pole connects；Each negative electrode (8) is sealingly fastened in furnace wall (6), has antiseepage antiseepage between negative electrode (8) and furnace wall (6) and shell (7) Insulating element (20)；Described anode (9) is rectangular, and upper end is fastened on and is positioned on seal closure (4) and passes the tune of seal closure (4) The lower end of integeral part (3), respectively hangs one piece of anode (9) in the both sides of every piece of negative electrode (8)；Described adjustment parts (3) Upper end is connected with positive source by wire；Described adjustment parts (3) control anode (9) and lift and/or seesaw；Each negative electrode (8) bottom, lower section burner hearth (5) respectively arranges a crucible (10), the passage being communicated with between two crucibles (10)；Described jacket water (J.W.) Cooler (12) is arranged on terminals (81) surface outside shell (7).

6. it is electrolysed as claimed in claim 1 bench of burners using method, it is characterised in that be that each electrolytic furnace carries with shared power supply (12) Power supply source, is electrolysed bench of burners electrolytic process parameter by adjusting shared power supply (13) output electric current and/or Voltage Cortrol.

7. be electrolysed as claimed in claim 6 bench of burners using method, it is characterised in that adjust accessory power supply (13) output voltage and/ Or electric current adjusts the electrolytic process parameter of corresponding each electrolytic furnace.

8. it is electrolysed bench of burners using method as claimed in claim 6, it is characterised in that during described electrolysis is bench of burners, any electrolytic furnace stops When only using, respective switch can be controlled and cut off the main circuit (41) powered to this electrolytic furnace the control connecting this electrolytic furnace electricity This electrolytic furnace is cut in electrolysis is bench of burners and is stopped by road (42).

9. it is electrolysed bench of burners using method as claimed in claim 8, it is characterised in that cut after stopping at least 1 electrolytic furnace, can adjust Total voltage and/or electric current that whole shared power supply (12) exports adjust corresponding process parameters.

10. it is electrolysed bench of burners using method as claimed in claim 3, it is characterised in that by the adjustment parts (3) of each electrolytic furnace Control the distance between anode (9) the motion each electrolytic furnace negative electrode (8) of adjustment and anode (9) and effectively electrolysis rea adjusting is respectively electrolysed The electrolytic process parameter of stove.