CN103203589A - Manufacturing method of pre-baking aluminium cell shell - Google Patents
Manufacturing method of pre-baking aluminium cell shell Download PDFInfo
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- CN103203589A CN103203589A CN2012100084525A CN201210008452A CN103203589A CN 103203589 A CN103203589 A CN 103203589A CN 2012100084525 A CN2012100084525 A CN 2012100084525A CN 201210008452 A CN201210008452 A CN 201210008452A CN 103203589 A CN103203589 A CN 103203589A
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Abstract
A manufacturing method of a pre-baking aluminium cell shell comprises the steps of short side plate structure manufacturing of the cell shell, long side plate structure manufacturing, bottom plate manufacturing and cell shell assembling. The manufacturing process of the pre-baking aluminium cell shell is more convenient and fast due to a mould for the short side plate structure manufacturing, a mould for the long side plate structure manufacturing and a mould for bottom plate turning.
Description
Affiliated field
The present invention relates to the manufacturing field of aluminium cell, especially relate to a kind of prebake formula aluminum cell casing preparation method.
Technical background
Aluminium cell is the main equipment that aluminium metallurgy is produced, and mainly comprises pot shell, bassinet stand, groove cover, negative electrode, anode, conducting system etc.Wherein, pot shell is the main place of carrying out cell reaction, and it is by a base plate and two framed side wallboards, two square pond shape structures that end plate surrounds.Because the aluminium electroloysis reaction condition is very harsh, therefore in order to guarantee that whole aluminium electrolysis process can be carried out safely and effectively, just need the electrolytic cell pot shell under the common influence of the hot environment of complexity and motive power, to keep trying one's best little deformation and low cracking rate.
In recent years, along with the development of electrolytic aluminium project, in the construction of electrolytic aluminium factory, adopt the large-scale aluminum electrolytic cell of 20KVA series to 30KVA series successively, promoted the ability that China's aluminium is produced greatly.
In the prior art, the pot shell that prebaked-anode type cell uses is essentially traditional box-structure, though have simple in structure, integral rigidity advantage preferably, but cathode block is used on the pot shell inwall with the sizable masterpiece of generation that is heated owing to inhaling sodium in the electrolysis production process, this power finally is delivered on the cradle-type carriage, bight at the cradle-type carriage produces a very big bending moment, makes cradle-type carriage bight tear, and causes the early damage of electrolytic cell.So just improved maintenance cost and the workload of electrolytic cell, but also can cause stop production to overhaul, thereby made the economic interests of manufacturer be subjected to great injury.
Summary of the invention
The preparation method of prebake formula aluminum cell casing provided by the invention makes electrolytic bath shell make standardization; Advanced science is conducive to guarantee stabilizing and increasing of electrolytic bath shell making construction quality simultaneously.
The present invention will solve the technical scheme that its technical problem adopts: prebake formula aluminum cell casing is made and is comprised that the short side structure of pot shell is made, long lateral plate structure is made, base plate is made, the pot shell assembling.Adopt short side plate structure fabrication mold, long lateral plate structure making mold, bottom panel tyre retreading tool, make in the manufacturing process of prebake formula aluminum cell casing convenient, quick.
In short side plate structure fabrication mold, make of the steel plate of δ=20mm to 22mm, the size of the inboard width of emphasis control flume, its width dimensions control is preferably controlled at-5mm to-7mm 0 to-10mm.Two angles of mold are dead mouthful, can change an angle of mold into the survivor of a murder attempt, with the size distance that leading screw is regulated mold, are convenient to tread flaking.
Make in the mold at long lateral plate structure, side dull and stereotyped with the flange plate group be to determine to answer bed hedgehopping degree control contravariant type amount by procedure qualification to the mold emphasis, notice that 2 the height of filling up is different, the left side is smaller.Generally control 8 to 12mm.
The flange plate group is integral admittedly to point, and the bolt hole location dimension is as the criterion with center line, welds then.Can adopt two kinds of ways to reduce distortion during welding, the one, adopt jig to tighten (can add reversible deformation) by the weld side platform, the 2nd, adopting increases interim gripper shoe.The per pass weld seam all welds to both sides from middle.Welding also can be adopted CO
2Gas shielded arc welding is to reduce distortion.Single-sided welding is intact, is cooled to normal temperature by the time and unloads jig again, fixes, welds another side.
Fix, organize long side plate and flange plate at mold.Long side plate center line and beam center line will align.Group to after weld, welding sequence is from inside to outside.By two people symmetry backstep.Weld transverse joint earlier, many transverse joints all weld from middle mind-set both sides.Weld longitudinal joint again, every empty backstep.Weld seam should adopt CO
2Gas shielded arc welding.Postwelding is cooled to normal temperature, and sub-assembly can tread flaking.In addition last lattice weld seam of both sides treat with the end plate group to after again the weldering.Length direction reversible deformation control is according to the actual conditions adjustment.Other method can be with wing plate and the direct welding of wallboard, flame correction after the tread flaking.The wing plate distortion is controlled with jackscrew.
Dull and stereotyped and the oblique side plate group of side is to the angle of mold emphasis control joint portion and the flatness of mold.
Oblique side plate is divided into three sections, and both sides elliptic arc plate is isometric, welds at mold when organizing tip plate configurations and termination wallboard, oblique side plate is set docks mold with long side plate, earlier oblique side plate and long side plate is fixed on the mold, and group is to being integral.The welding still by the centre to the bilateral symmetry backstep.Weld an outside weld earlier, upset back back root cleaning is welded seam in a time again.This welding must CO
2Gas welds to reduce shedding deformation.
Namely the cathode steel bar hole should be held successfully after the tread flaking.Should be by middle mind-set bilateral symmetry cutting during perforate.Can bore 3～6mm hole with power drill at angle of spot hole earlier before the cutting, reduce the distortion that stoving time length causes with flame cutting then.
In bottom panel tyre retreading tool, to weld with Lincoln weld, after single welding was intact, with special-purpose mold turn-over, mold was head-oned by hinge and suspension ring are formed back chipping weldering another side then, has welded the back and has removed the welding run-on tab, uses the sanding machine modified end then.Should weld transverse joint (but free shrink) earlier during welding, back weldering longitudinal joint.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is short side plate structure mold schematic diagram.
Fig. 2 is that side plate and flange plate group are to the mold schematic diagram.
Fig. 3 is side wing plate welding anti-deformation schematic diagram.
Fig. 4 is side plate and side wing plate welding schematic diagram.
Fig. 5 is that the dull and stereotyped and oblique side plate group of side is to the mold schematic diagram.
Fig. 6 is base plate turn-over mold schematic diagram.
Fig. 7 is base plate anti-deformation schematic diagram.
The specific embodiment
1, the short side structure of pot shell is made
For quality is made in control welding deformation, assurance, the short side structure of pot shell must carry out welding to mold in group, short side plate structure mold as shown in Figure 1.
The short side plate structure is utilized semi auto cutting machine to carry out blanking or is beaten groove.
After short sidewall paneling and the shroud blanking smoothing, roll up arc with veneer reeling machine by the circular arc location, and use the model inspection, its gap should be not more than 1mm, will lack sidewall paneling and cut away with oblique side plate intersection, stands up stand-by.
The short sidewall paneling of spooling is buckled on the mold, good center is clamped with jig (3), mark each group to the position line, by solid to putting along the der group of plate → oblique side plate → T-type plank → shroud.
Welding, CO is adopted in welding
2Gas shielded arc welding and manual electric arc welding combine, welding sequence be T-type plank with along plate → T-shaped gusset and shroud → T-shaped plate, along plate with lack sidewall paneling.Middle to the both sides backstep certainly during welding, when cannot see difficult welding along welder operators such as angle seams in plate and the coaming plate, the short side plate structure can be fallen together with mold, winch on the high I-steel support of 1.4m the welding fillet weld in the flat position.
CO
2Gas shielded arc welding welding parameter NBC-500
Normal temperature to be chilled to after having welded can be from tread flaking on the mold.
2, long lateral plate structure is made
Long sidewall paneling is pressed the charging of scale plate with oblique side plate.
Long sidewall paneling, tiltedly side plate and flange plate etc. utilize semi auto cutting machine to carry out blanking, and reserve suitable allowance for shrinkage and make the center line mark, can adopt segmentation to sever during the flange plate blanking, wait will even put after the cooling again and sever, to reduce distortion.To nonconforming being proofreaied and correct with forcing press.
Smooth long side plate and oblique side plate, with also holing to the hole, both sides from center line behind forcing press alignment, the smoothing flange plate.
On long side plate, accurately emit the flange plate group to the position line and oblique side plate group to position line.
Group is to flange plate: according to the figure paper size flange plate group is integral admittedly to point, notices that the bolt hole location dimension must be as the criterion with center line, welds then.As shown in Figure 3, can adopt two kinds of ways to reduce distortion during welding, the one, adopt jig (3) to tighten (can add reversible deformation) by the weld side platform, the 2nd, adopting increases interim gripper shoe (1).The per pass weld seam all welds to both sides from middle.CO is also adopted in welding as far as possible
2Gas shielded arc welding is to reduce distortion.Single-sided welding is intact, is cooled to normal temperature by the time and unloads jig (3) again, fixes, welds another side.
Fix, organize long side plate and flange plate at mold.Long side plate center line and beam center line must align.Group to after weld, welding sequence is from inside to outside as shown in Figure 4.By two people symmetry backstep.Weld transverse joint earlier, many transverse joints all weld from middle mind-set both sides.Weld longitudinal joint again, every empty backstep.Weld seam should adopt CO
2Gas shielded arc welding.Postwelding is cooled to normal temperature, and sub-assembly can tread flaking.In addition last lattice weld seam of both sides treat with the end plate group to after again the weldering.Length direction reversible deformation control is according to the actual conditions adjustment.Other method can be with wing plate and the direct welding of wallboard, flame correction after the tread flaking.The wing plate distortion is controlled with jackscrew.
Oblique side plate is divided into three sections, and both sides elliptic arc plate is isometric, welds at mold when organizing tip plate configurations and termination wallboard, as shown in Figure 5, oblique side plate is set docks mold with long side plate, earlier oblique side plate and long side plate is fixed on the mold, and group is to being integral.The welding still by the centre to the bilateral symmetry backstep.Weld an outside weld earlier, upset back back root cleaning is welded seam in a time again.This welding must CO
2Gas welds to reduce shedding deformation.
Namely the cathode steel bar hole should be held successfully after the tread flaking.Should be by middle mind-set bilateral symmetry cutting during perforate.Can bore 3～6mm hole with power drill at angle of spot hole earlier before the cutting, reduce the distortion that stoving time length causes with flame cutting then.
Check to proofread and correct lateral plate structure, undesirablely should give correction.
3, base plate is made
Base plate (4) is formed by two scale plates assemblies, also can be by four plates splicing, and the size of splice plate is by requirement among the figure.
After base plate (4) blanking is straight, right in platform group, be preferably in organize in the workshop in right, group is to gap 0-1mm, the run-on tab of 12 * a 100 * 150mm of each spot welding at the weld bond two ends, weldering is preceding at weld seam underlay one elongated anti-welding deformation backing plate, the wide 20-30mm thickness of slab of plate 3-6mm.
Weld with Lincoln weld, after single welding was intact, with special-purpose mold turn-over as shown in Figure 6, mold was head-oned (5) by hinge and suspension ring (6) are formed back chipping weldering another side then, has welded the back and has removed the welding run-on tab, uses the sanding machine modified end then.Should weld transverse joint (but free shrink) earlier during welding, back weldering longitudinal joint.
Check the bottom deformation situation, 1 meter＜1.0mm of base plate (5) unevenness as undesirable, revises with flame.
Centre mark is carried out in single face rust cleaning, mopping.
4, pot shell assembling
The assembly platform that the pot shell assembling can be set up in potroom carries out, also can set up assembly platform at the electrolytic cell foundation pier is first mounting support beam and levelling, 26 butt beams equidistantly are placed on the backbar, with spirit level measure and levelling, point solid, the pot shell assembly platform.
Base plate is winched to group on the platform with suspension bracket, check center line and mark group to inner loop-line.
Two short side plate structures are winched on the base plate, align center line and inner loop-line after, check that perpendicularity, diagonal are errorless after, make interim support fixation with angle steel, will lack sidewall paneling and base plate group and consolidate putting.
Measure two short sidewalls to center distance, by middle mind-set two-sided measurement and the long side plate of correction, lift long lateral plate structure then, align center line and inner loop-line and solid with base plate point, support with angle steel after finding perpendicularity, diagonal temporarily, group organizes to and checks that to four upright seams of wallboard, oblique side plate abutment joint and wing plate abutment joint the pot shell size should adhere to specification.
Weld four upright seams and oblique side plate abutment joint simultaneously, weldering out-seam earlier, back chipping weldering inseam again, welded flange plate abutment joint and the tiltedly angle seam of side plate and base plate then, last angle welding of welding stud and the base plate of short side plate structure again.For preventing distortion, when welding the angle seam of oblique side plate and base plate, press certain weight (2) as shown in Figure 7 at base plate before the weldering; heavily about 15-20t, the CO2 gas shielded arc welding is adopted in the welding of base plate and short side plate, long side plate; weld out-seam earlier, back weldering inseam, the welder should symmetrical backstep.Pot shell cross joint and flange plate opposite joint adopt CO
2Gas shielded arc welding or manual welding T426 welding rod.
After having welded, check flaw detection, overproof position is corrected, the rust cleaning mopping of qualified back.
Claims (4)
1. prebake formula aluminum cell casing preparation method is characterized in that: prebake formula aluminum cell casing is made and is comprised that the short side structure of pot shell is made, long lateral plate structure is made, base plate is made, pot shell is assembled.Adopt short side plate structure fabrication mold, long lateral plate structure making mold, bottom panel tyre retreading tool, make in the manufacturing process of prebake formula aluminum cell casing convenient, quick.
2. according to the prebake formula aluminum cell casing preparation method shown in the claim 1, it is characterized in that: in the described short side plate structure fabrication, steel plate with δ=20mm to 22mm is made mold, the size of the inboard width of emphasis control flume, its width dimensions control is preferably controlled at-5mm to-7mm 0 to-10mm.Two angles of mold are dead mouthful, can change an angle of mold into the survivor of a murder attempt, with the size distance that leading screw is regulated mold, are convenient to tread flaking.
3. according to the prebake formula aluminum cell casing preparation method shown in the claim 1, it is characterized in that: during described long lateral plate structure is made, the side flat board is to determine to answer bed hedgehopping degree control contravariant type amount by procedure qualification with the flange plate group to the mold emphasis, note to fill up 2 height be different, the left side is smaller.Generally control 8 to 12mm; Dull and stereotyped and the oblique side plate group of side is to the angle of mold emphasis control joint portion and the flatness of mold.
4. according to the prebake formula aluminum cell casing preparation method shown in the claim 1, it is characterized in that: during described bottom surface makes, weld with Lincoln weld, after single welding is intact, with special-purpose mold turn-over, mold is head-oned by hinge and suspension ring are formed back chipping weldering another side then, has welded the back and has removed the welding run-on tab, uses the sanding machine modified end then.Should weld transverse joint (but free shrink) earlier during welding, back weldering longitudinal joint.
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| CN2012100084525A CN103203589A (en) | 2012-01-12 | 2012-01-12 | Manufacturing method of pre-baking aluminium cell shell |
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| CN2012100084525A CN103203589A (en) | 2012-01-12 | 2012-01-12 | Manufacturing method of pre-baking aluminium cell shell |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692065A (en) * | 2013-10-28 | 2014-04-02 | 中国二冶集团有限公司 | Manufacturing method of electrolytic bath bottom plate |
| CN104028875A (en) * | 2014-05-04 | 2014-09-10 | 中国一冶集团有限公司 | Aluminum electrolytic cell manufacturing method |
| CN104827228A (en) * | 2015-05-25 | 2015-08-12 | 中国十九冶集团有限公司 | Electrolytic tank construction mould |
| CN104889685A (en) * | 2015-05-25 | 2015-09-09 | 中国十九冶集团有限公司 | Electrolytic tank construction method |
| CN108118365A (en) * | 2017-12-18 | 2018-06-05 | 中国二冶集团有限公司 | A kind of electrolytic cell Efficient installation method |
| CN108406152A (en) * | 2018-05-03 | 2018-08-17 | 云南建投机械制造安装工程有限公司 | Manufacture of large-size prebaked anode electrolytic bath shell engineering method |
| CN112427883A (en) * | 2020-09-28 | 2021-03-02 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for manufacturing aluminum cell shell |
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- 2012-01-12 CN CN2012100084525A patent/CN103203589A/en active Pending
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103692065A (en) * | 2013-10-28 | 2014-04-02 | 中国二冶集团有限公司 | Manufacturing method of electrolytic bath bottom plate |
| CN104028875A (en) * | 2014-05-04 | 2014-09-10 | 中国一冶集团有限公司 | Aluminum electrolytic cell manufacturing method |
| CN104827228A (en) * | 2015-05-25 | 2015-08-12 | 中国十九冶集团有限公司 | Electrolytic tank construction mould |
| CN104889685A (en) * | 2015-05-25 | 2015-09-09 | 中国十九冶集团有限公司 | Electrolytic tank construction method |
| CN108118365A (en) * | 2017-12-18 | 2018-06-05 | 中国二冶集团有限公司 | A kind of electrolytic cell Efficient installation method |
| CN108406152A (en) * | 2018-05-03 | 2018-08-17 | 云南建投机械制造安装工程有限公司 | Manufacture of large-size prebaked anode electrolytic bath shell engineering method |
| CN112427883A (en) * | 2020-09-28 | 2021-03-02 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for manufacturing aluminum cell shell |
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Application publication date: 20130717 |