CN104694958B - For heating the heater and heating means of aluminium-electrolyzing pre-roaster cathode carbon pieces - Google Patents
For heating the heater and heating means of aluminium-electrolyzing pre-roaster cathode carbon pieces Download PDFInfo
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- CN104694958B CN104694958B CN201510081202.8A CN201510081202A CN104694958B CN 104694958 B CN104694958 B CN 104694958B CN 201510081202 A CN201510081202 A CN 201510081202A CN 104694958 B CN104694958 B CN 104694958B
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- roaster
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
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- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Resistance Heating (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
The invention discloses a kind of heater and heating means for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces.The heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces includes：Heat preservation cover, Heat preservation cover is interior to have accommodating chamber；Left heating tube, right heating tube and lower heating tube, left heating tube, right heating tube and lower heating tube are located in accommodating chamber；Temperature sensor, temperature sensor are located in heating chamber；Three-phase alternating-current supply, three-phase alternating-current supply are switchably connected by switch with triangle wiring or star-star connection, and triangle wiring and star-star connection are connected with left heating tube, right heating tube and lower heating tube；And controller, controller are connected so that the temperature detection value controlling switch according to temperature sensor switches between triangle wiring and star-star connection with temperature sensor and switch.The heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention has the advantages that firing rate is fast, the heat time is short, cast strong adaptability.
Description
Technical field
The present invention relates to the heater for heating aluminium-electrolyzing pre-roaster cathode carbon pieces, further relates to be used to heat aluminium electricity
Solve the heating means of pre-baking tank cathode carbon pieces.
Background technology
At present, the connected mode of aluminium-electrolyzing pre-roaster cathode carbon pieces and rod iron has rod iron paste to prick solid and phosphorus pig iron cast two
Kind mode.Because the cathode drop of phosphorus pig iron pouring type is small, has and progressively substitute rod iron to prick the trend pasted admittedly.But phosphorus is utilized to give birth to
Iron pouring type connection aluminium-electrolyzing pre-roaster easily causes aluminium-electrolyzing pre-roaster with cathode carbon pieces and rod iron and burst with cathode carbon pieces,
Aluminium-electrolyzing pre-roaster cathode carbon pieces are caused to form crack and scrap.
The content of the invention
The application is made based on discovery of the inventor to following facts and problem and understanding：Due to aluminium-electrolyzing pre-roaster
It is even with cathode carbon pieces uneven heating, therefore during the phosphorus pig iron is poured into a mould, aluminium-electrolyzing pre-roaster is easily burst with cathode carbon pieces,
Especially when pouring into a mould more than 300KA large-scale aluminium electrolysis pre-baking tank cathode carbon pieces.Moreover, existing be used to heat aluminium electroloysis
The device of pre-baking tank cathode carbon pieces exist the heat time it is long the defects of, it is necessary to heat can be only achieved within more than 10 hours cast will
Ask, thus result in the need for implementing complicated anti-oxidation measure.
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention carries
Go out a kind of cloudy for heating aluminium-electrolyzing pre-roaster with the advantages of firing rate is fast, the heat time is short, cast strong adaptability
The heater of pole carbon block.
The present invention also propose it is a kind of have firing rate is fast, the heat time is short, cast strong adaptability the advantages of be used for plus
The heating means of hot aluminium-electrolyzing pre-roaster cathode carbon pieces.
The heater bag for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces of embodiment according to a first aspect of the present invention
Include：Heat preservation cover, the Heat preservation cover is interior to have accommodating chamber；Left heating tube and right heating tube, the left heating tube and institute
State right heating tube to be located in the accommodating chamber, the left heating tube is adjacent to the left side wall of the accommodating chamber, the right heating tube neighbour
The right side wall of the nearly accommodating chamber；Lower heating tube, the lower heating tube are located in the accommodating chamber, and the lower heating tube is adjacent to institute
The bottom wall of accommodating chamber is stated, wherein being formed between the left heating tube, the right heating tube and the lower heating tube for heating aluminium
The heating chamber of pre-baking tank cathode carbon pieces is electrolysed, it is each in the left heating tube, the right heating tube and the lower heating tube
Individual with the aluminium-electrolyzing pre-roaster that is located in the heating chamber is first predetermined value with the distance of cathode carbon pieces；For measuring the aluminium
The temperature sensor of the temperature of pre-baking tank cathode carbon pieces is electrolysed, the temperature sensor is located in the heating chamber；Three is intersecting
Power supply is flowed, the three-phase alternating-current supply is switchably connected by switch with triangle wiring or star-star connection, the triangle wiring
It is connected with the star-star connection with each in the left heating tube, the right heating tube and the lower heating tube；And control
Device, the controller are connected so as to the temperature detection value according to the temperature sensor with the temperature sensor and the switch
The switch is controlled to switch between the triangle wiring and the star-star connection.
The heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention has heating speed
The advantages of degree is fast, the heat time is short, cast strong adaptability.
In addition, the heater according to the above embodiment of the present invention for heating aluminium-electrolyzing pre-roaster cathode carbon pieces is also
There can be technical characteristic additional as follows：
According to one embodiment of present invention, the first predetermined value is 100 millimeters -150 millimeters.
According to one embodiment of present invention, the Heat preservation cover includes casing and is detachably arranged on the casing
Upper lid, the accommodating chamber of sealing is formed between the casing and the upper lid.
According to one embodiment of present invention, the antetheca of the accommodating chamber is provided with nitrogen inlet, after the accommodating chamber
Wall is provided with nitrogen outlet.
According to one embodiment of present invention, the resistance of the left heating tube, the right heating tube resistance and it is described under
The resistance of heating tube is equal to each other.
According to one embodiment of present invention, the left heating tube, the right heating tube and the bodily form of lower heating tube one
Into.
According to one embodiment of present invention, the heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces enters
One step includes：Left installation bracket, the left installation bracket are welded on the left side wall of the accommodating chamber, on the left installation bracket
Provided with left mounting hole, the left heating tube is through the left mounting hole and is welded on the left installation bracket；Right mounting bracket,
The right mounting bracket is welded on the right side wall of the accommodating chamber, and the right mounting bracket is provided with right mounting hole, the right side
Heating tube is through the right mounting hole and is welded on the right mounting bracket；With lower mounting bracket, the lower mounting bracket weldering
It is connected on the bottom wall of the accommodating chamber, the lower mounting bracket is provided with lower mounting hole, and the lower heating tube passes through the lower peace
Fill hole and be welded in the lower mounting bracket.
According to one embodiment of present invention, the left heating tube is multiple that the right heating tube is multiple, is added under described
Heat pipe is multiple, and multiple left heating tubes, multiple right heating tubes and multiple lower heating tubes are pre- along the aluminium electroloysis
Roasting groove is set at interval with the length direction of cathode carbon pieces.
According to one embodiment of present invention, the roof of the accommodating chamber be provided with the first plug hole, the second plug hole and
3rd plug hole, phase at first plug hole and in the longitudinal direction the 1/2 of the aluminium-electrolyzing pre-roaster cathode carbon pieces
Right, second plug hole and the 3rd plug hole are respectively with the aluminium-electrolyzing pre-roaster cathode carbon pieces in length direction
On 1/3 at it is relative.
Utilizing for embodiment described according to a first aspect of the present invention is used to heat aluminium electroloysis according to a second aspect of the present invention
The heating means that the heater of pre-baking tank cathode carbon pieces is implemented, the heating means comprise the following steps：Aluminium electroloysis is pre-
Roasting groove is placed in heating chamber with cathode carbon pieces；Switching switch is to make three-phase alternating-current supply be connected with triangle wiring, and described three
Heating tube, right heating tube and lower heating tube provide electric power to cross streams power supply to the left, to be added using the left heating tube, the right side
Heat pipe and the lower heating tube heat the aluminium-electrolyzing pre-roaster cathode carbon pieces；With treat the aluminium-electrolyzing pre-roaster negative electrode charcoal
When the temperature of block reaches 590 degrees Celsius, switching is switched to make three-phase alternating-current supply be connected with star-star connection, and the aluminium is electric
Solution pre-baking tank is maintained at 615 degrees Celsius with the temperature of cathode carbon pieces.
Brief description of the drawings
Fig. 1 is the structure for being used to heat the heater of aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention
Schematic diagram.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
What below with reference to the accompanying drawings description was according to embodiments of the present invention is used to heat adding for aluminium-electrolyzing pre-roaster cathode carbon pieces
Thermal 10.As shown in figure 1, the heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention
10 include Heat preservation cover 101, left heating tube 102, right heating tube 103, lower heating tube 104, for measuring aluminium-electrolyzing pre-roaster
With temperature sensor (not shown), three-phase alternating-current supply (not shown) and the controller (figure of the temperature of cathode carbon pieces
Not shown in).
There is accommodating chamber 1011 in Heat preservation cover 101.Left heating tube 102, right heating tube 103 and lower heating tube 104 are set
In accommodating chamber 1011.Left heating tube 102 is adjacent to the left side wall 1012 of accommodating chamber 1011, and right heating tube 103 is adjacent to accommodating chamber
1011 right side wall 1013, bottom wall 1014 of the lower heating tube 104 adjacent to accommodating chamber 1011.Wherein, left heating tube 102, right heating
Form the heating chamber for heating aluminium-electrolyzing pre-roaster cathode carbon pieces between pipe 103 and lower heating tube 104, left heating tube 102,
Each in right heating tube 103 and lower heating tube 104 and the aluminium-electrolyzing pre-roaster cathode carbon pieces that are located in the heating chamber
Distance is first predetermined value.In other words, left heating tube 102, right heating tube 103 and lower heating tube 104 are used with aluminium-electrolyzing pre-roaster
The distance of cathode carbon pieces is equal to each other.
The temperature sensor is located in the heating chamber.The three-phase alternating-current supply by switch switchably with triangle wiring or
Star-star connection is connected, in the triangle wiring and the star-star connection and left heating tube 102, right heating tube 103 and lower heating tube 104
Each is connected.That is, the three-phase alternating-current supply has two with left heating tube 102, right heating tube 103 and lower heating tube 104
Kind connected mode, the first connected mode are：The three-phase alternating-current supply passes through the triangle wiring and left heating tube 102, right heating
Pipe 103 is connected with lower heating tube 104, and second of connected mode is：The three-phase alternating-current supply passes through the star-star connection and left heating
Pipe 102, right heating tube 103 are connected with lower heating tube 104.The switch is used to switch both connected modes.
The controller is connected with the temperature sensor and the switch so as to the temperature detection value control according to the temperature sensor
The switch is made between triangle wiring and star-star connection to switch.
Description below utilizes the heating dress for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention
Put the heating means of 10 implementations.Heating means according to embodiments of the present invention comprise the following steps：
Aluminium-electrolyzing pre-roaster is placed in the heating chamber with cathode carbon pieces；
Switch the switch to make the three-phase alternating-current supply be connected with the triangle wiring, the three-phase alternating-current supply heats to the left
Pipe 102, right heating tube 103 and lower heating tube 104 provide electric power, to add using left heating tube 102, right heating tube 103 and down
Heat pipe 104 heats the aluminium-electrolyzing pre-roaster cathode carbon pieces；
When the temperature of the aluminium-electrolyzing pre-roaster cathode carbon pieces reaches 590 degrees Celsius, switch the switch so as to make this three
Cross streams power supply is connected with the star-star connection, and the aluminium-electrolyzing pre-roaster is maintained at into 615 degrees Celsius with the temperature of cathode carbon pieces.
The heater 10 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention is by making a left side
Heating tube 102, right heating tube 103 and lower heating tube 104 are equal to each other with the aluminium-electrolyzing pre-roaster with the distance of cathode carbon pieces, from
And aluminium-electrolyzing pre-roaster cathode carbon pieces can be uniformly heated up, during the phosphorus pig iron is poured into a mould, to avoid aluminium electroloysis pre-
Roasting groove cathode carbon pieces are burst.
Moreover, the heater 10 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention uses
Star triangle switching temprature control method, first with the triangle wiring (270KW) to the left heating tube 102, right heating tube 103 and under
Heating tube 104 provides electric power, to make the aluminium-electrolyzing pre-roaster be rapidly heated with cathode carbon pieces, then recycles the star-star connection
(90KW) heating tube 102, right heating tube 103 and lower heating tube 104 provide electric power to the left, to make the aluminium-electrolyzing pre-roaster cloudy
The temperature of pole carbon block is constant at 615 degrees Celsius.The aluminium-electrolyzing pre-roaster is added with cathode carbon pieces it is possible thereby to greatly shorten
Hot time (heat time is less than or equal to 180 minutes), without implementing complicated anti-oxidation measure.
Therefore, the heater 10 for heating aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention has
The advantages that firing rate is fast, the heat time is short, cast strong adaptability, can be greatly enhanced aluminium-electrolyzing pre-roaster cathode carbon pieces
Cast success rate.The heater 10 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention can be with
It is for heating 420KA aluminium-electrolyzing pre-roaster cathode carbon pieces, i.e., according to embodiments of the present invention to be used to heat aluminium electrolysis pre-baking
Groove can be used for cast 420KA aluminium-electrolyzing pre-roaster cathode carbon pieces with the heater 10 of cathode carbon pieces.
In some embodiments of the invention, Heat preservation cover 101 includes casing and is detachably arranged in upper on casing
Lid, the casing and the accommodating chamber 1011 for forming sealing on this between lid.
Specifically, the casing includes bottom plate and sets front side board, back side panel, left plate and right side on which floor plate
Plate.Wherein, left heating tube 102 is adjacent to the left plate, and right heating tube 103 is adjacent to the right plate, and lower heating tube 104 is adjacent to the bottom
Plate.
Advantageously, the heater 10 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to embodiments of the present invention enters
One step includes left installation bracket, right mounting bracket and lower mounting bracket.The left installation bracket is welded on the left side of accommodating chamber 1011
On wall 1012, the left installation bracket is provided with left mounting hole, and left heating tube 102 is through the left mounting hole and is welded on the left installation
On support.The right mounting bracket is welded on the right side wall 1013 of accommodating chamber 1011, and the right mounting bracket is provided with right mounting hole,
Right heating tube 103 is through the right mounting hole and is welded on the right mounting bracket.The lower mounting bracket is welded on accommodating chamber 1011
Bottom wall 1014 on, the lower mounting bracket is provided with lower mounting hole, and lower heating tube 104 is through the lower mounting hole and is welded under this
In mounting bracket.
It is possible thereby to more easily, be firmly installed left heating tube 102, right heating tube 103 and lower heating tube 104.
In left heating tube 102, right heating tube 103 and lower heating tube 104 each be located in the heating chamber aluminium electricity
It is first predetermined value that pre-baking tank, which is solved, with the distance of cathode carbon pieces.Advantageously, the first predetermined value is 100 millimeters -150 millimeters.
In one embodiment of the invention, the resistance of left heating tube 102, the resistance of right heating tube 103 and lower heating tube
104 resistance is equal to each other.It is possible thereby to it is equal left heating tube 102, right heating tube 103 and lower heating tube 104 is produced
Heat, so as to more uniformly heat the aluminium-electrolyzing pre-roaster cathode carbon pieces, further to avoid the aluminium electroloysis
Pre-baking tank is burst with cathode carbon pieces during the phosphorus pig iron is poured into a mould.
Advantageously, left heating tube 102, right heating tube 103 and lower heating tube 104 are integrally formed.
As shown in figure 1, in some examples of the present invention, left heating tube 102 to be multiple, right heating tube 103 be it is multiple, under
Heating tube 104 is multiple.Wherein, multiple left heating tubes 102, multiple right heating tubes 103 and multiple lower heating tubes 104 are electric along the aluminium
Solution pre-baking tank is set at interval with the length direction of cathode carbon pieces.
It is possible thereby to left heating tube 102, right heating tube 103 and lower heating tube 104 is produced equal heat, so as to
The aluminium-electrolyzing pre-roaster cathode carbon pieces can be more uniformly heated, further to avoid the aluminium-electrolyzing pre-roaster negative electrode
Carbon block is burst during the phosphorus pig iron is poured into a mould.Wherein, the length direction of the aluminium-electrolyzing pre-roaster cathode carbon pieces is as in Fig. 1
Shown in arrow A.
Nitrogen inlet can be provided with the antetheca of accommodating chamber 1011, can be gone out on the rear wall of accommodating chamber 1011 provided with nitrogen
Mouthful., can be by nitrogen inlet to appearance during the aluminium-electrolyzing pre-roaster cathode carbon pieces are heated using heater 10
Receive and be passed through nitrogen in chamber 1011, so as to not only protect the aluminium-electrolyzing pre-roaster cathode carbon pieces not oxidized using nitrogen,
And the aluminium-electrolyzing pre-roaster cathode carbon pieces can be cooled down using nitrogen after casting complete.
In the example of the present invention, the roof of accommodating chamber 1011 is provided with the first plug hole, the second plug hole and the
Three plug holes.It is relative at first plug hole and in the longitudinal direction the 1/2 of aluminium-electrolyzing pre-roaster cathode carbon pieces.This second
Plug hole and the 3rd plug hole are relative with the longitudinal direction the 1/3 of aluminium-electrolyzing pre-roaster cathode carbon pieces respectively.
That is, by the aluminium-electrolyzing pre-roaster negative electrode on length direction of the aluminium-electrolyzing pre-roaster with cathode carbon pieces
Carbon block halves, to obtain bisecting line.It will be appreciated by persons skilled in the art that the bisection is on geometric meaning
Division, rather than the aluminium-electrolyzing pre-roaster is divided into two independent parts with cathode carbon pieces.Wherein, first plug hole with
The bisecting line is relative.When the aluminium-electrolyzing pre-roaster to below 300KA is poured into a mould with cathode carbon pieces, first poured into a mould by this
Poured into a mould in hole.
It is on the length direction of the aluminium-electrolyzing pre-roaster cathode carbon pieces that the aluminium-electrolyzing pre-roaster cathode carbon pieces are third
Point, to obtain two trisection lines.It will be appreciated by persons skilled in the art that the trisection is drawing on geometric meaning
Point, rather than the aluminium-electrolyzing pre-roaster is divided into three independent parts with cathode carbon pieces.Wherein, second plug hole and one
The individual trisection line is relative, and the 3rd plug hole and another trisection line is relative.When the aluminium electroloysis to 300KA and the above is pre-
When roasting groove is poured into a mould with cathode carbon pieces, poured into a mould simultaneously by second plug hole and the 3rd plug hole.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (10)
- A kind of 1. heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces, it is characterised in that including：Heat preservation cover, the Heat preservation cover is interior to have accommodating chamber；Left heating tube and right heating tube, the left heating tube and the right heating tube are located in the accommodating chamber, the left heating The left side wall of the neighbouring accommodating chamber of pipe, right side wall of the right heating tube adjacent to the accommodating chamber；Lower heating tube, the lower heating tube are located in the accommodating chamber, the lower heating tube adjacent to the accommodating chamber bottom wall, its Described in formed between left heating tube, the right heating tube and the lower heating tube for heating aluminium-electrolyzing pre-roaster negative electrode charcoal The heating chamber of block, each in the left heating tube, the right heating tube and the lower heating tube is with being located at the heating chamber Interior aluminium-electrolyzing pre-roaster is first predetermined value with the distance of cathode carbon pieces；For the temperature sensor for the temperature for measuring the aluminium-electrolyzing pre-roaster cathode carbon pieces, the temperature sensor is located at institute State in heating chamber；Three-phase alternating-current supply, the three-phase alternating-current supply are switchably connected by switch with triangle wiring or star-star connection, institute State triangle wiring and the star-star connection and each phase in the left heating tube, the right heating tube and the lower heating tube Even；WithController, the controller are connected so as to the temperature according to the temperature sensor with the temperature sensor and the switch The degree detected value control switch switches between the triangle wiring and the star-star connection.
- 2. the heater according to claim 1 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces, it is characterised in that The first predetermined value is 100 millimeters -150 millimeters.
- 3. the heater according to claim 1 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces, it is characterised in that The Heat preservation cover includes casing and the upper lid being detachably arranged on the casing, shape between the casing and the upper lid Into the accommodating chamber of sealing.
- 4. the heater according to claim 1 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces, it is characterised in that The antetheca of the accommodating chamber is provided with nitrogen inlet, and the rear wall of the accommodating chamber is provided with nitrogen outlet.
- 5. the heater according to claim 1 for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces, it is characterised in that The resistance of the resistance of the left heating tube, the resistance of the right heating tube and the lower heating tube is equal to each other.
- 6. the heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to any one of claim 1-5, Characterized in that, the left heating tube, the right heating tube and the lower heating tube are integrally formed.
- 7. the heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to any one of claim 1-5, Characterized in that, further comprise：Left installation bracket, the left installation bracket are welded on the left side wall of the accommodating chamber, and the left installation bracket is provided with Left mounting hole, the left heating tube is through the left mounting hole and is welded on the left installation bracket；Right mounting bracket, the right mounting bracket are welded on the right side wall of the accommodating chamber, and the right mounting bracket is provided with Right mounting hole, the right heating tube is through the right mounting hole and is welded on the right mounting bracket；WithLower mounting bracket, the lower mounting bracket are welded on the bottom wall of the accommodating chamber, and the lower mounting bracket is provided with down Mounting hole, the lower heating tube is through the lower mounting hole and is welded in the lower mounting bracket.
- 8. the heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to any one of claim 1-5, Characterized in that, the left heating tube is multiple, the right heating tube be it is multiple, the lower heating tube be it is multiple, it is multiple described The length of left heating tube, multiple right heating tubes and multiple lower heating tubes along the aluminium-electrolyzing pre-roaster cathode carbon pieces Direction is set at interval.
- 9. the heater for being used to heat aluminium-electrolyzing pre-roaster cathode carbon pieces according to any one of claim 1-5, Characterized in that, the roof of the accommodating chamber is provided with the first plug hole, the second plug hole and the 3rd plug hole, described first pours Relative, second plug hole and institute at orifice and in the longitudinal direction the 1/2 of the aluminium-electrolyzing pre-roaster cathode carbon pieces It is relative with the longitudinal direction the 1/3 of the aluminium-electrolyzing pre-roaster cathode carbon pieces respectively to state the 3rd plug hole.
- 10. it is a kind of utilize according to any one of claim 1-9 be used for heat aluminium-electrolyzing pre-roaster cathode carbon pieces The heating means that heater is implemented, it is characterised in that the heating means comprise the following steps：Aluminium-electrolyzing pre-roaster is placed in heating chamber with cathode carbon pieces；Switching switch is to make three-phase alternating-current supply be connected with triangle wiring, and heating tube, the right side add the three-phase alternating-current supply to the left Heat pipe and lower heating tube provide electric power, to utilize the left heating tube, the right heating tube and the lower heating tube heating institute State aluminium-electrolyzing pre-roaster cathode carbon pieces；WithWhen the temperature of the aluminium-electrolyzing pre-roaster cathode carbon pieces reaches 590 degrees Celsius, switching is switched to make three-phase alternating current Power supply is connected with star-star connection, and the aluminium-electrolyzing pre-roaster is maintained at into 615 degrees Celsius with the temperature of cathode carbon pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081202.8A CN104694958B (en) | 2015-02-15 | 2015-02-15 | For heating the heater and heating means of aluminium-electrolyzing pre-roaster cathode carbon pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081202.8A CN104694958B (en) | 2015-02-15 | 2015-02-15 | For heating the heater and heating means of aluminium-electrolyzing pre-roaster cathode carbon pieces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104694958A CN104694958A (en) | 2015-06-10 |
| CN104694958B true CN104694958B (en) | 2017-11-24 |
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| CN201510081202.8A Active CN104694958B (en) | 2015-02-15 | 2015-02-15 | For heating the heater and heating means of aluminium-electrolyzing pre-roaster cathode carbon pieces |
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| JPS608313B2 (en) * | 1979-12-08 | 1985-03-01 | 株式会社日軽技研 | How to keep an aluminum electrolytic tank warm |
| CN101886274B (en) * | 2010-06-29 | 2012-09-05 | 云南云铝润鑫铝业有限公司 | Electric heating roasting preheating electrolytic bath and cleaning and roasting method |
| CN202201985U (en) * | 2011-08-23 | 2012-04-25 | 贵阳铝镁设计研究院有限公司 | Cathode carbon block group heater |
| CN102419088A (en) * | 2011-12-09 | 2012-04-18 | 云南铝业股份有限公司 | Graphite cathode carbon block preheating equipment capable of continuously heating in reciprocating mode |
| CN102416461B (en) * | 2011-12-09 | 2014-06-18 | 云南铝业股份有限公司 | Process for casting phosphorus cast iron to carbon graphite cathode carbon blocks |
| CN202705503U (en) * | 2012-04-12 | 2013-01-30 | 七冶炉窑建筑工程有限责任公司 | Assembling heating cover for cathode carbon blocks |
| CN103866349B (en) * | 2014-03-07 | 2017-10-10 | 郑州发祥铝业有限公司 | The assemble method of cathode block heater and cathode block and cathode steel bar |
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2015
- 2015-02-15 CN CN201510081202.8A patent/CN104694958B/en active Active
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