CN202000001U - Energy-saving sealing and heat-insulating cell cover for aluminum electrolysis cell - Google Patents
Energy-saving sealing and heat-insulating cell cover for aluminum electrolysis cell Download PDFInfo
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- CN202000001U CN202000001U CN2011200380303U CN201120038030U CN202000001U CN 202000001 U CN202000001 U CN 202000001U CN 2011200380303 U CN2011200380303 U CN 2011200380303U CN 201120038030 U CN201120038030 U CN 201120038030U CN 202000001 U CN202000001 U CN 202000001U
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- groove cover
- joint
- cell
- aluminium sheet
- cover
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Abstract
The utility model discloses an energy-saving sealing and heat-insulating cell cover for an aluminum electrolysis cell. The cell cover is formed by fixedly interconnecting a plurality of aluminum plate cell covers, in which a plurality of concave grooves and convex grooves are formed, in a buckling or lapping mode; the front end and the rear end of each aluminum plate cell cover are fixedly provided with a first hooked joint and a second right-angled joint respectively; two aluminum plate cell covers are fixedly connected with each other through the first joint and the second joint; each aluminum plate cell cover is transversely provided with a plurality of square pipes; the left ends and the right ends of the aluminum plate cell covers are provided with a high-temperature-resistant U-shaped insulating cell respectively; and a composite heat-insulating layer is arranged on the inner sides of the aluminum plate cell covers. Through the cell cover, the problem of untight sealing brought by deformation of the electrolysis cell cover is solved, and good energy conservation, heat insulation and insulation effects are achieved; meanwhile, a part of construction investment is saved; better sealing property and a better energy conservation effect can be achieved by using the buckling or lapping mode; and the composite heat-insulating layer can more effectively prevent heat in the electrolysis cell from being transferred through a large-surface cell cover.
Description
Technical field
The utility model relates to a kind of aluminum smelting technology groove cover, especially a kind of aluminium cell energy efficient seal insulation groove cover.
Background technology
After the nineties, aluminium electrolytic industry constantly improves output by the increasing electrolyzer of development capacity in order to generate profit maximization, has become a kind of general strategy.It can reduce a ton aluminium cost, raises labour productivity, and improves the economic interests of enterprise.Along with the raising of three researchs of aluminium cell and computer-controlled development and electrolysis production use raw material quality, brought technical support for the exploitation of vast capacity electrolyzer.At present, with headed by the companies such as Alcan, Alcoa, Hydro, the anodic current density of its aluminium cell is significantly brought up to 0.78-0.9A/cm in the world
2Between, the capacity of electrolyzer has also reached 500KA.At home, the electrolyzer of existing part electrolytic aluminium factory begins anodic current density is brought up to 0.8A/cm
2Operation, simultaneously, the paces that the electrolyzer of 450-500KA capacity has also entered exploitation or gone into operation.
Modern prebaked cell aluminium metallurgy, the flue gas that produces in its electrolytic process mainly contains two aspects:
1, the CO of sodium aluminum fluoride-alumina molten salt electrolysis generation
2And CO, i.e. Al
2O
3+ 1.77C=2Al+1.24CO
2+ 0.53CO, by this reaction formula, the CO that produces 1000kgAl in theory and produced
2Be respectively 1010Kg and 2731Kg with the CO amount.The gas temperature that overflows in ionogen is 150 ℃, when pressure is 1.0133X105Pa, calculates CO according to V=nRT/P
2Be respectively 797m with the CO amount
3And 338m
3
2, HF and the CF that generates in sodium aluminum fluoride-alumina molten salt electrolysis process
4, HF is main gaseous pollutant, 1 ton of aluminium of every production, and the HF gas of its output is approximately 8.33Kg, according to gas volume calculating-15m
3CF
4When closing on and take place, anode effect produces, when anode effect is closed on, and CF
4Content only accounts for the 1.5-2% of gaseous fluorine, and reaches 20-40% when effect takes place.Along with the progress of modern cell technologies, the anode effect coefficient has been reduced to 0.1 time/groove sky, and duration of effect also was reduced to 3 minutes, therefore, and CF
4Content in gas is considerably less, can ignore basically.
The flue gas that comprehensive above two kinds of approach produce, 1 ton of gas that aluminium produced of the every in theory production of electrolyzer is 1150m
3
At present, nearly all prebaked-anode type cell all is provided with smoke-uptake, gas skirt.The flue gas of electrolyzer is drained into the main smoke pipe of purification system by the groove upper smoke tube after flue compiles, send into refining plant and handle.Aborning, the gas skirt of electrolyzer is similar to umbrella hood, the hot flue gas that electrolyzer produces forms upstream under buoyancy function, therefore, in theory as long as cover open area greater than the upstream area of section, the rate of air sucked in required of design just can all suck refining plant master smoke pipe so that pollute flue gas greater than the upstream flow.Yet in fact, electrolyzer is made up of many groups anode, every group of corresponding side slots cover of anode, and adopt the straight line butt joint between per two groove covers, form some slits.Simultaneously, along with the prolongation of production time, operation of cells need be trampled the groove cover continually, is a kind of mode of dull and stereotyped welding and traditional groove cover adopts, and the time one is long, because insufficient strength is brought the distortion of groove cover, makes the slit further strengthen.Therefore, do not efflux, have to strengthen the smoking amount in order to guarantee dusty gas.
The structure formation of existing electrolyzer is except the slit of butt joint of groove cover straight line and distortion generation, and anode rod, crust breaking cylinder etc. also can produce the slit.Through the production practice checking, the gas collecting efficiency of 200kA electrolyzer such as need acquisition 98.5% need be brought up to 7000m3/h with the smoking amount, and the 350kA groove especially need be up to 11000m3/h.
Showing through on-the-spot test, is example with the 350kA groove, and the average slit of traditional line dock groove cover reaches 0.6cm, and guarantees that as needing the electrolyzer flue gas is not excessive, can only strengthen the exhausting amount that electrolysis flue gas purifies, and therefore, the electrolyzer rate of air sucked in required reaches 11000m3/h; After adopting novel buckled groove cover, it is reduced to its average slit 0.1cm, electrolyzer guarantees that the not excessive rate of air sucked in required of flue gas only is 6500m3/h.
The utility model content
The purpose of this utility model provides a kind of aluminium cell energy efficient seal simple in structure, convenient and practical, that cost is lower and is incubated the groove cover, not only durable in use, safe and reliable, and install easily, both solve the electrolytic bath cover because the poorly sealed problem that distortion brings, reached energy-saving heat preserving, effect that insulation effect is good; Simultaneously, save the part construction investment.
For solving the problems of the technologies described above, the technical solution of the utility model is:
This aluminium cell energy efficient seal insulation groove cover: it is mutually permanently connected by the mode of the aluminium sheet groove cover that is provided with many grooves and tongue in a plurality of by snapping or overlap joint and forms; The rear and front end of each aluminium sheet groove cover is fixed with respectively and is hook solid first joint and rectangular shape second joint; Fixedly connected between two aluminium sheet groove covers by first joint, second joint; Be horizontally arranged with many square tubes on the aluminium sheet groove cover; Be respectively equipped with resistant to elevated temperatures U-shaped insulation tank at the two ends, the left and right sides of aluminium sheet groove cover; On the inboard of aluminium sheet groove cover, be provided with the composite thermal insulation layer.
Aluminium sheet groove cover adopts whole punching press or rolling forming, and aluminium sheet groove cover constitutes 2～3 groups of tongue and grooves after punching press or roll extrusion, and the degree of depth of every group of tongue and groove is 30～50mm.
Square tube is made of aluminium alloy.
The beneficial effects of the utility model:
This utility model is that a kind of aluminium cell energy efficient seal simple in structure, convenient and practical, that cost is lower is incubated the groove cover, not only durable in use, safe and reliable, and install easily, both solve the electrolytic bath cover because the poorly sealed problem that distortion brings, reached energy-saving heat preserving, effect that insulation effect is good; Simultaneously, save the part construction investment; Adopt the form of snapping or overlap joint to connect, stopping property is better, reaches energy-conservation better effect; Simultaneously, be compounded with one deck high-temperature-resistant thermal-insulation thermofin on the tongue and groove cover inner face; The composite thermal insulation layer can more effectively prevent the conduction of the interior heat of electrolyzer by the large surface-grooved cover, has reduced a large amount of thermosteresis, thereby has reached purpose of energy saving; Through on-the-spot test, adopt the novel cell cover to reduce greater than 10 degree than traditional slot cover surface temperature.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is the main TV structure synoptic diagram of combination of the present utility model.
Fig. 2 is a plan structure synoptic diagram of the present utility model.
Fig. 3 is a left TV structure synoptic diagram of the present utility model.
Fig. 4 is the structural representation of two mutual snappings of aluminium sheet groove cover or overlap joint.
Fig. 5 is the structural representation of Fig. 4 section.
Embodiment
According to Fig. 1-shown in Figure 5, the utility model mainly comprises: aluminium sheet groove cover 1, square tube 2, insulation tank 3, thermofin 4, first joint 5, second joint 6, groove 7, tongue 8.
Aluminium cell energy efficient seal insulation groove cover is mutually permanently connected by the mode of the aluminium sheet groove cover 1 that is provided with many grooves 7 and tongue 8 in a plurality of by snapping or overlap joint and forms; The rear and front end of each aluminium sheet groove cover 1 is fixed with respectively and is hook solid first joint 5 and rectangular shape second joint 6; Fixedly connected between two aluminium sheet groove covers 1 by first joint 5, second joint 6; Be horizontally arranged with many square tubes 2 on the aluminium sheet groove cover 1; Be respectively equipped with resistant to elevated temperatures U-shaped insulation tank 3 at the two ends, the left and right sides of aluminium sheet groove cover 1; On the inboard of aluminium sheet groove cover 1, be provided with composite thermal insulation layer 4.
Aluminium sheet groove cover 1 adopts whole punching press or rolling forming, and aluminium sheet groove cover 1 constitutes 2～3 groups of tongue and grooves after punching press or roll extrusion, and the degree of depth of every group of tongue and groove is 30～50mm.
Square tube 2 is made of aluminium alloy.
Principle of work:
Aluminium sheet forms the aluminium sheet groove cover 1 of band concaveconvex structure after through a punching press or roll forming, landscape configuration at aluminium sheet groove cover 1 has aluminum alloy square tube 2, be provided with high temperature resistant U type insulation tank 3 at the two ends of aluminium sheet groove cover 1, scribble composite thermal insulation layer 4 in the inboard of aluminium sheet groove cover 1; Per two aluminium sheet groove covers 1 adopt the form of snapping or overlap joint to connect.Aluminium sheet groove cover 1 forms 2-3 group tongue and groove after punching press, the degree of depth of every group of tongue and groove is 30-50mm.
After adopting punching press or roll forming band tongue and groove structure, laterally be equipped with 4 alloy square tubes and reinforce, not only improved integrally-built intensity, make it not yielding, more sturdy and durable, safer when the workman operates.Reduce workman's maintenance load and maintenance cost to a great extent, reached the purpose of cost efficiency.
Claims (3)
1. aluminium cell energy efficient seal insulation groove cover is characterized in that: it is mutually permanently connected by the mode of the aluminium sheet groove cover (1) that is provided with many grooves (7) and tongue (8) in a plurality of by snapping or overlap joint and forms; The rear and front end of each aluminium sheet groove cover (1) is fixed with respectively and is hook solid first joint (5) and rectangular shape second joint (6); Fixedly connected between two aluminium sheet groove covers (1) by first joint (5), second joint (6); Be horizontally arranged with many square tubes (2) on the aluminium sheet groove cover (1); Be respectively equipped with resistant to elevated temperatures U-shaped insulation tank (3) at the two ends, the left and right sides of aluminium sheet groove cover (1); On the inboard of aluminium sheet groove cover (1), be provided with composite thermal insulation layer (4).
2. aluminium cell energy efficient seal insulation groove cover according to claim 1, it is characterized in that: described aluminium sheet groove cover (1) adopts whole punching press or rolling forming, aluminium sheet groove cover (1) constitutes 2～3 groups of tongue and grooves after punching press or roll extrusion, the degree of depth of every group of tongue and groove is 30～50mm.
3. aluminium cell energy efficient seal insulation groove cover according to claim 1, it is characterized in that: described square tube (2) is made of aluminium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200380303U CN202000001U (en) | 2011-02-14 | 2011-02-14 | Energy-saving sealing and heat-insulating cell cover for aluminum electrolysis cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200380303U CN202000001U (en) | 2011-02-14 | 2011-02-14 | Energy-saving sealing and heat-insulating cell cover for aluminum electrolysis cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202000001U true CN202000001U (en) | 2011-10-05 |
Family
ID=44702746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200380303U Expired - Fee Related CN202000001U (en) | 2011-02-14 | 2011-02-14 | Energy-saving sealing and heat-insulating cell cover for aluminum electrolysis cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202000001U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105683420A (en) * | 2013-10-30 | 2016-06-15 | 力拓艾尔坎国际有限公司 | Sealing device for a cover of an electrolysis cell |
| CN106757158A (en) * | 2016-11-23 | 2017-05-31 | 中国铝业股份有限公司 | A kind of plication aluminium electrolysis cell cover plate |
| CN103820813B (en) * | 2013-11-28 | 2017-06-20 | 云南云铝润鑫铝业有限公司 | A kind of thermal insulation electrolytic tank |
| CN107858704A (en) * | 2017-11-14 | 2018-03-30 | 中冶天工集团有限公司 | A kind of insulating method of aluminium cell smoking pipe |
-
2011
- 2011-02-14 CN CN2011200380303U patent/CN202000001U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105683420A (en) * | 2013-10-30 | 2016-06-15 | 力拓艾尔坎国际有限公司 | Sealing device for a cover of an electrolysis cell |
| CN103820813B (en) * | 2013-11-28 | 2017-06-20 | 云南云铝润鑫铝业有限公司 | A kind of thermal insulation electrolytic tank |
| CN106757158A (en) * | 2016-11-23 | 2017-05-31 | 中国铝业股份有限公司 | A kind of plication aluminium electrolysis cell cover plate |
| CN107858704A (en) * | 2017-11-14 | 2018-03-30 | 中冶天工集团有限公司 | A kind of insulating method of aluminium cell smoking pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20170214 |