CN206887243U - A kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA - Google Patents
A kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA Download PDFInfo
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- CN206887243U CN206887243U CN201720505910.4U CN201720505910U CN206887243U CN 206887243 U CN206887243 U CN 206887243U CN 201720505910 U CN201720505910 U CN 201720505910U CN 206887243 U CN206887243 U CN 206887243U
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Abstract
The utility model category field of metallurgical equipment, specifically a kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA, top is provided with the rod iron embedding groove (1) of swallow-tail form with a tight waist longitudinally through whole cuboid, groove sidewall, which is that two longitudinally convex planes are intersecting, to be formed, and groove bottom passes through circular arc (2) rounding transition with groove sidewall；Left and right end face through there is an end face dovetail groove (3), section for it is outer it is big in small isosceles trapezoid, the interior 5mm of bottom width 2, the outer 12mm of bottom width 6, deep 3 6mm, the 5mm of separation 2；Front and rear sides face, which is run through, side dovetail groove (4), section for it is outer it is big in small isosceles trapezoid, interior bottom width is 1.5 times of end face dovetail groove (3) outer bottom width, 2 times of the outer bottom width of a width of end face dovetail groove (3) of outer bottom, depth is identical with end face dovetail groove (3), and separation is the width of 3 adjacent face dovetail grooves (3).The utility model can make hearth and bottom reduce about 50mV, 150 200kwh of ton aluminium economize on electricity.
Description
Technical field
The utility model belongs to aluminium-electrolyzing pre-roaster manufacturing field, specifically a kind of aluminum electrolyzing cell used graphite cathodes of 400KA
Carbon block.
Background technology
As aluminum electrolysis industry production capacity is expanded, cost, energy consumption, the pressure of environmental protection gradually increase, and electrolysis aluminum production enterprises are more
Filling is again to power-saving technology, the development and breakthrough of equipment.Production efficiency is improved by the improvement to electric tank cathode structure, reduced
Energy consumption turns into the improved important thinking of industry energy-saving.Graphite cathode casting technique has developed into ripe at present, widely uses.
Carbon cathode used for aluminium electrolysis is located at bottom of electrolytic tank, builds refractory material by laying bricks or stones outside it and is reinforced with box hat.It is used for aluminium electrolysis
Aluminium liquid and electrolyte are followed successively by carbon cathode, in itself and the cell reaction for carrying out separating out aluminium on aluminium liquid interface.DC current passes through
Outside aluminium liquid, bottom carbon block and cathode steel bar export groove, carbon cathode is aluminium cell most important components.Its structure design, material
Matter situation, installation quality and working condition influence very big on Aluminum Electrolysis Efficiency and aluminium electroloysis power consumption.
Carbon cathode voltage drop used for aluminium electrolysis accounts for 10% of tank voltage or so typically in more than 400mV.How further to reduce
The problem of pressure drop of cathode carbon pieces is aluminium electroloysis industry long sought.
Utility model content
The purpose of this utility model is the provision of a kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA, realizes electrolysis
Effective reduction of groove hearth and bottom.
Technical scheme provided by the utility model is：
A kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA, in cuboid, carbon block top is provided with rod iron embedding groove (1),
For rod iron embedding groove (1) longitudinally through whole cuboid, channel section is shaped as swallow-tail form with a tight waist, and groove sidewall is that two projections are intersecting flat
Face is formed, and intersection be located at the middle position of groove depth and parallel longitudinal with groove, and groove bottom and groove sidewall pass through circular arc (2) rounding mistake
Cross.
Through there is end face dovetail groove (3), its cross sectional shape is the fore-and-aft direction in the left and right ends face of the cuboid carbon block
Small isosceles trapezoid, interior bottom width 2-5mm, outer bottom width 6-12mm, depth 3-6mm, separation 2-5mm in outer big.
Through there is side dovetail groove (4), its cross sectional shape is the left and right directions in the front and rear sides face of the cuboid carbon block
Small isosceles trapezoid in outer big, interior bottom width are 1.5 times of end face dovetail groove (3) outer bottom width, and a width of end face dovetail groove (3) of outer bottom is outside
2 times of bottom width, depth is identical with end face dovetail groove (3), and separation is the width of 3 adjacent face dovetail grooves (3).
Also included optimization or/and improvement of the present utility model have：
The end face dovetail groove (3) is located at the lower section of rod iron embedding groove (1).
In use, according to selected rod iron size, the rod iron embedding groove of swallow-tail form with a tight waist is processed on cathode block
(1) to load negative electrode, then replace the method that carbon paste makes firm by ramming with phosphorus pig iron casting, by the cathode steel bar with square-section with
Carbon block links together, and obtains that the finished product graphite cathode carbon block for constructing electric tank cathode can be used directly to.
Implementing the beneficial effect of technical solutions of the utility model is：
By using the rod iron embedding groove of oat tail groove structure, the compression joint area of conductive contact surfaces is added, is further reduced
Hearth and bottom, designed arc-shaped appearance optimize the CURRENT DISTRIBUTION of carbon block；And end face dovetail groove and side dovetail groove pour with adjacent carbon block
Contact area can be increased during connection, reduce contact resistance.
The 400KA pre-calcining electrolytic cells hearth and bottom of negative electrode is poured using the utility model graphite cathode carbon block to be reduced about
50mV, aluminium per ton save power consumption 150-200kwh.
Describe the technical solution of the utility model in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In accompanying drawing 1,1-rod iron embedding groove, 2-circular arc, 3-end face dovetail groove, 4-side dovetail groove.
Embodiment
To make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings 1 and implement
Example is described in further detail to the utility model.
In embodiment, for the ease of description, the description of each part relative position relation is the cloth according to Figure of description 1
Figure mode is described, such as：The position relationship of upper and lower, left and right etc. is that the Butut direction of foundation Figure of description 1 is come really
Fixed.
Embodiment 1：
As shown in figure 1, a kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA, in cuboid, carbon block top is provided with rod iron
Embedding groove (1), for rod iron embedding groove (1) longitudinally through whole cuboid, channel section is shaped as swallow-tail form with a tight waist, and groove sidewall is two
Raised intersecting plane is formed, and intersection be located at the middle position of groove depth and parallel longitudinal with groove, and groove bottom and groove sidewall pass through circle
Arc (2) rounding transition；
Through there is end face dovetail groove (3), its cross sectional shape is the fore-and-aft direction in the left and right ends face of the cuboid carbon block
Small isosceles trapezoid, interior bottom width 2-5mm, outer bottom width 6-12mm, depth 3-6mm, separation 2-5mm in outer big；
Through there is side dovetail groove (4), its cross sectional shape is the left and right directions in the front and rear sides face of the cuboid carbon block
Small isosceles trapezoid in outer big, interior bottom width are 1.5 times of end face dovetail groove (3) outer bottom width, and a width of end face dovetail groove (3) of outer bottom is outside
2 times of bottom width, depth is identical with end face dovetail groove (3), and separation is the width of 3 adjacent face dovetail grooves (3).
The 400KA pre-calcining electrolytic cells hearth and bottom of negative electrode is poured using the graphite cathode carbon block of the present embodiment 1 to be reduced about
50mV, aluminium per ton save power consumption 180kwh.
Embodiment 2：
Optimization provided by the utility model or/and improvement are further described with reference to embodiment 1 and accompanying drawing 1：
The end face dovetail groove (3) is located at the lower section of rod iron embedding groove (1).
It is understood that the exemplary reality that above example is merely to illustrate that principle of the present utility model and used
Mode is applied, but the utility model is not limited thereto, and can be determined according to the technical solution of the utility model with actual conditions
Specific embodiment.For those skilled in the art, spirit and essence of the present utility model are not being departed from
In the case of, various changes and modifications can be made therein, and these increased variations and modifications are also considered as protection model of the present utility model
Enclose.
Claims (2)
1. a kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA, in cuboid, it is characterised in that carbon block top is provided with rod iron
Embedding groove (1), for rod iron embedding groove (1) longitudinally through whole cuboid, channel section is shaped as swallow-tail form with a tight waist, and groove sidewall is two
Raised intersecting plane is formed, and intersection be located at the middle position of groove depth and parallel longitudinal with groove, and groove bottom and groove sidewall pass through circle
Arc (2) rounding transition；
For the fore-and-aft direction in the left and right ends face of the cuboid carbon block through there is end face dovetail groove (3), its cross sectional shape is outer big
In small isosceles trapezoid, interior bottom width 2-5mm, outer bottom width 6-12mm, depth 3-6mm, separation 2-5mm；
For the left and right directions in the front and rear sides face of the cuboid carbon block through there is side dovetail groove (4), its cross sectional shape is outer big
In small isosceles trapezoid, interior bottom width is 1.5 times of end face dovetail groove (3) outer bottom width, the outer bottom width of a width of end face dovetail groove (3) of outer bottom
2 times, depth is identical with end face dovetail groove (3), and separation is the width of 3 adjacent face dovetail grooves (3).
A kind of 2. aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA according to claim 1, it is characterised in that the end face
Dovetail groove (3) is located at the lower section of rod iron embedding groove (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720505910.4U CN206887243U (en) | 2017-05-09 | 2017-05-09 | A kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720505910.4U CN206887243U (en) | 2017-05-09 | 2017-05-09 | A kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206887243U true CN206887243U (en) | 2018-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720505910.4U Active CN206887243U (en) | 2017-05-09 | 2017-05-09 | A kind of aluminum electrolyzing cell used graphite cathode carbon blocks of 400KA |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206887243U (en) |
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2017
- 2017-05-09 CN CN201720505910.4U patent/CN206887243U/en active Active
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