CN101851765B - Energy saving and environmental protection aluminium cell with self-baking anode - Google Patents
Energy saving and environmental protection aluminium cell with self-baking anode Download PDFInfo
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- CN101851765B CN101851765B CN2010101938815A CN201010193881A CN101851765B CN 101851765 B CN101851765 B CN 101851765B CN 2010101938815 A CN2010101938815 A CN 2010101938815A CN 201010193881 A CN201010193881 A CN 201010193881A CN 101851765 B CN101851765 B CN 101851765B
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Abstract
The invention relates to an energy saving and environmental protection aluminium cell with a self-baking anode, solving the problem of the existing aluminium cell with the self-baking anode that the aluminium cell pollutes the environment, the degree of automation is low, the labor intensity is large and large scale operation is hard to realize. The anode device of the aluminium cell contains an anode composed of multiple anode bodies, wherein filler is arranged in the gap between two adjacent anode bodies; a discharging and exhausting mechanism is arranged in each gap, each discharging and exhausting mechanism comprises an outer sleeve, a discharging pipe and an exhaust pipe; a gas collecting skirt and an anode superstructure are sleeved around the lower and upper parts of the anode, the gas collecting skirt is provided with a through-hole and an escape vent; a current-conducting rod penetrates through the through-hole, the anode superstructure is connected with a supporting part, and a sealing ring is arranged between the current-conducting rod and the through-hole. The invention realizes the aim of collecting and processing the anode waste gas and has the advantages that the swelling of the anode can be prevented and the stress on the current-conducting rod is uniform; by using the aluminium cell of the invention, the mechanization and automatization of aluminum-feeding and residue-breaking can be realized; and the bottleneck of producing the large-scale electrolytic cell can be overcome.
Description
Technical field
The present invention relates to aluminium cell, relate in particular to aluminium cell with self-baking anode, be specially a kind of energy saving and environmental protection aluminium cell with self-baking anode.
Background technology
At present; Chinalco mainly adopts large-sized prebaked cell for aluminum-reduction to produce electrolytic aluminum both at home and abroad; Its normal productive process need regularly replace anode carbon block; Change anode carbon block and be prone to make the original magnetic field of electrolyzer balance to wreck, anode carbon block bottom of newly changing and the liquid aluminum under it can not well adapt in a long time, and technico-economical comparison is not good over a period to come to cause electrolyzer; The old anode carbon block that changes accounts for the anode scrap of former anode carbon block about 20%, though can recycling, its loss that causes is very big; The pre-baked anode carbon blocks that large-sized prebaked cell for aluminum-reduction adopted (being anode carbon block) needs special production plant to produce, and needs bigger investment; The anode carbon block production process need consume a large amount of energy, and need carry out the comprehensive regulation to waste gas, the waste water that production process produces, otherwise can cause serious environmental to pollute; Anode carbon block applies in the electrolyzer and goes, and must can use through assembling procedure, increases investment so again, and consumes energy needs supporting treating plant; And, generally can not be in prebaked cell for aluminum-reduction direct production duraluminum or the higher refined aluminium of purity, this has all influenced the economic benefit of Chinalco.
Problem to the prebaked cell for aluminum-reduction existence; Traditional aluminium cell with self-baking anode has anode to be used continuously; Electrolyzer can be produced continually and steadily, can also utilize the good anode of the waste heat roasting of electrolyzer from the body, and aluminium cell with self-baking anode generally is a save energy thus; But the bitumen flue gas that aluminium cell with self-baking anode produces is difficult to administer and cause environmental pollution, exists level of automation low, hand-fed labour intensity is big, work situation dislike strong, the deficiency of the operation that is difficult to realize to maximize.
Summary of the invention
Weak point is specially contaminate environment, level of automation is low, labour intensity is big and the problem of the operation that is difficult to realize maximize because textural defect exists in order to solve existing aluminium cell with self-baking anode in the present invention, and a kind of energy saving and environmental protection aluminium cell with self-baking anode is provided.
The present invention adopts following technical scheme to realize: energy saving and environmental protection aluminium cell with self-baking anode; Comprise anode assembly, groove thorax and negative electrode; Described anode assembly comprises by some front and back and distributing and sidewall is surrounded by the anode that the anode body of aluminium foil is formed; Be provided with in filler and the gap between adjacent two anode bodies in the gap between adjacent two anode bodies or about the gap outside be equipped with the blanking air-releasing mechanism; The blanking air-releasing mechanism comprises the outer tube and the tremie pipe and the vapor pipe that are positioned at it of vertical placement, and the gap location between outer tube, tremie pipe and the vapor pipe is provided with refractory seals spare, is with some gas skirts of being close to anode side walls around the anode bottom along the vertical direction; Be with anode superstructure around the anode top; Each gas skirt is provided with some through holes and escape vents, is installed with current conducting rod and current conducting rod in the through hole and penetrates in the anode body, is fixed with the supporting part that supports current conducting rod on the gas skirt; Anode superstructure connects the supporting part of bottom, and the gap location between current conducting rod and the through hole corresponding with it is provided with sealing-ring.The filler of being selected for use is realized for those skilled in the art easily; When carrying out the electrolysis operation; Around the pairing electrolytic bath shell face of tremie pipe, have feed opening, then starting material (staple is aluminum oxide and ALUMNIUM FLUORIDE) are flowed into feed opening through tremie pipe, and then in the entering ionogen solubilizing reaction takes place; The water electrolytic gas that produces also ejects through feed opening, and the water electrolytic gas of discharge is taken away through vapor pipe; Be provided with sealing-ring between the through hole of current conducting rod and gas skirt, the anode waste gas that anode body produces can get into gas skirt, then through the escape vents on the gas skirt with the anode waste gas collection and treatment, overcome anode waste gas and be difficult to handle and cause environmental pollution problems; Through being provided with the blanking air-releasing mechanism in the gap between adjacent two anode bodies or outside about the gap, the starting material that help adding dissolve fast, reduce deposition and generate; Supporting part is used to carry anodic weight; Simultaneously the needs according to the electrolyzer amount of capacity can be provided with a plurality of anode bodies, realize the requirement that electrolyzer maximizes, and when avoiding anode excessive, are easy to generate the generation of crackle, center superheat, help the discharge of anode waste gas, reduce bubble resistance.
Be filled with the filler that is positioned at around the current conducting rod between gas skirt inwall and the anode side walls, further strengthened between gas skirt through hole and the current conducting rod and current conducting rod and anode body between stopping property, prevent the generation and the leakage of anode waste gas.
Gap between adjacent two anode bodies is 1-30cm in the distance of fore-and-aft direction, makes that the design more reasonable of energy saving and environmental protection aluminium cell with self-baking anode is reliable.
Be provided with the cylinder of vertical placement around the outer tube, the tailpiece of the piston rod of cylinder is fixed with attacking head, can realize the mechanize of crust breaking blanking operation and the purpose of robotization through this kind structure design, the bigger problem of labour intensity when avoiding manual operation.
Gas skirt is to be formed by connecting through screw rod two semiclosed (i.e. three limits surround framework) shape assemblies of being processed in channel-section steel; And the groove of assembly is positioned at the gas skirt inboard, when gas skirt is removed, earlier current conducting rod is extracted; Again screw rod is opened, can be realized that gas skirt and anodic break away from.
The size of anode body is different; Through regulating the anode body size, make the place that the gap is very fast over against electrolyte flow rate between the anode body, temperature is higher, thereby make the starting material of tremie pipe flow into feed opening; Further accelerate starting material and dissolve rapidly, unlikely formation deposition.
The present invention has overcome existing aluminium cell with self-baking anode through rational design, and weak point is specially contaminate environment, level of automation is low, labour intensity is big and the problem of the operation that is difficult to realize maximize because textural defect exists; Through the generation of the anode waste gas anode waste gas of particularly overflowing around the current conducting rod of having set up the gas skirt assembly prevent; Even the effusion anode waste gas also can be collected by gas skirt, help this anode waste gas and burnt through water electrolytic gas or dispose through special emission-control equipment, prevent that the anode waste gas diffusion from causing environmental pollution problems; Avoid anode waste gas not collect earlier and directly mix simultaneously with low-temperature electrolytic gas; Thereby the problem that increases the water electrolytic gas intractability occurs, and it is few to have the anode waste gas amount, collects easily; Handle easy, water electrolytic gas and handle that no difficulty, expense are low to reach advantages such as effective; The gas skirt device also has the anode of preventing external drum, reduces the anode heat radiation, helps anode-baking, conduction; The anode conducting rod is stressed evenly, is difficult for producing advantages such as anode crackle; Through being provided with the blanking air-releasing mechanism in the gap between adjacent two anode bodies or outside about the gap; Realized the requirement of computer control charging of the cell operation; Technico-economical comparison is stable, advanced; Improved the mechanize and the automatization level of operation greatly, alleviated labor intensity of operating personnel and improved working environment of operating personnel, have that blanking process electrolyte shell surface is difficult for subsiding, ionogen toward groove spray outward, not oxidation of anode reaches characteristics such as automatic control stabilization; Anode form by some anode bodies and the size of anode body different, solved the bottleneck that electrolyzer maximizes, help electrolyzer to more large-scale development, thereby reduce investment outlay, raise labour productivity; Owing to adopt the successive soberberg anode, need not regularly replace anode, so the anode bottom all the time with the groove thorax in liquid aluminum match; Electrolyzer production is stable; Each item technico-economical comparison is stable, and control is easy automatically, and anode can make full use of the waste heat roasting of upper part of the electrolytic cell and do not need special production plant to go to produce and assembling; Saved the energy and investment, economic benefit and social benefit are good.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the structural representation at gas skirt place among the present invention:
Fig. 4 is the schematic side view of Fig. 3.
Among the figure: 1-groove thorax, 2-negative electrode, 3-aluminium foil, 4-anode body, 5, the 19-filler; The 6-outer tube, 7-tremie pipe, 8-vapor pipe, 9-refractory seals spare, 10-gas skirt; The 11-anode superstructure, 12-through hole, 13-escape vents, 14-current conducting rod; The 15-supporting part, 16-sealing-ring, 17-cylinder, 18-attacking head.
Embodiment
Energy saving and environmental protection aluminium cell with self-baking anode; Comprise anode assembly, groove thorax 1 and negative electrode 2; Described anode assembly comprises by some front and back and distributing and sidewall is surrounded by the anode that the anode body 4 of aluminium foil 3 is formed; Be provided with in filler 5 and the gap between adjacent two anode bodies 4 in the gap between adjacent two anode bodies 4 or about the gap outside be equipped with the blanking air-releasing mechanism; The blanking air-releasing mechanism comprises the outer tube 6 and tremie pipe that is positioned at it 7 and vapor pipe 8 of vertical placement, and the gap location between outer tube 6, tremie pipe 7 and the vapor pipe 8 is provided with refractory seals spare 9, is with some gas skirts 10 of being close to anode side walls around the anode bottom along the vertical direction; Be with anode superstructure 11 around the anode top; Each gas skirt 10 is provided with some through holes 12 and escape vents 13, is installed with current conducting rod 14 and current conducting rod 14 in the through hole 12 and penetrates in the anode body 4, is fixed with the supporting part that supports current conducting rod 14 on the gas skirt 10; Anode superstructure 11 connects the supporting part 15 of bottoms, and the gap location between current conducting rod 14 and the through hole 12 corresponding with it is provided with sealing-ring 16.Be filled with between gas skirt 10 inwalls and the anode side walls and be positioned at current conducting rod 14 filler 19 on every side; Gap between adjacent two anode bodies 4 is 1-30cm in the distance of fore-and-aft direction; Be provided with the cylinder 17 of vertical placement around the outer tube 6, the tailpiece of the piston rod of cylinder 17 is fixed with attacking head 18; Filler 5 or filler 19 can adopt aluminum oxide, ALUMNIUM FLUORIDE or sodium aluminum fluoride; Gas skirt 10 is to be formed by connecting through screw rod two semiclosed shape assemblies of being processed in channel-section steel, and the groove of assembly is positioned at gas skirt 10 inboards.During use,, need the current conducting rod on the bottom gas skirt 10 14 is extracted along with the continuous consumption of bottom anode; The gas skirt 10 corresponding with it also breaks away from anode simultaneously, then anode superstructure 11 upwards promoted certain altitude, is with one deck gas skirt 10 then around the anode above top layer gas skirt 10 again; Be installed with some current conducting rods 14 on the gas skirt 10, then anode superstructure 11 be connected with bottom gas skirt 10, in the process along with the continuous loss of anode; Carry out above-mentioned steps repeatedly, during the practical implementation process, be connected with the ventpipe that an end is positioned at the feed opening top on the escape vents 13; The anode waste gas that gas skirt 10 is collected is discharged to the feed opening top through ventpipe; The then high-temperature electrolysis gas mixed firing of anode waste gas and generation is deflated pipe 8 then and takes away, makes that the processing of anode waste gas is more reasonable; Be equipped with suspension hook on anode superstructure 11 and the supporting part 15; The suspension hook of anode superstructure 11 links to each other through chain sling with suspension hook on the bottom supporting part 15; The blanking air-releasing mechanism is through the anode upper and lower end face, because raw-material flowability is better, so starting material flow to feed opening through tremie pipe 7.
Claims (10)
1. energy saving and environmental protection aluminium cell with self-baking anode; Comprise anode assembly, groove thorax (1) and negative electrode (2); It is characterized in that: described anode assembly comprises by some front and back and distributing and sidewall is surrounded by the anode that the anode body (4) of aluminium foil (3) is formed; Be provided with in filler (5) and the gap between adjacent two anode bodies (4) in the gap between adjacent two anode bodies (4) or about the gap outside be provided with the blanking air-releasing mechanism; The blanking air-releasing mechanism comprises the outer tube (6) of vertical placement and is positioned at its tremie pipe (7) and vapor pipe (8); Gap location between outer tube (6), tremie pipe (7) and the vapor pipe (8) is provided with refractory seals spare (9); Be with some gas skirts (10) of being close to anode side walls around the anode bottom along the vertical direction, be with anode superstructure (11) around the anode top, each gas skirt (10) is provided with some through holes (12) and escape vents (13); Being installed with current conducting rod (14) and current conducting rod (14) in the through hole (12) penetrates in the anode body (4); Be fixed with the supporting part (15) that supports current conducting rod (14) on the gas skirt (10), anode superstructure (11) connects the supporting part (15) of bottom, and the gap location between current conducting rod (14) and the through hole (12) corresponding with it is provided with sealing-ring (16).
2. energy saving and environmental protection aluminium cell with self-baking anode according to claim 1 is characterized in that: be filled with between gas skirt (10) inwall and the anode side walls and be positioned at current conducting rod (14) filler (19) on every side.
3. energy saving and environmental protection aluminium cell with self-baking anode according to claim 1 and 2 is characterized in that: the gap between adjacent two anode bodies (4) is 1-30cm in the distance of fore-and-aft direction.
4. energy saving and environmental protection aluminium cell with self-baking anode according to claim 1 and 2 is characterized in that: outer tube (6) is provided with the cylinder (17) of vertical placement on every side, and the tailpiece of the piston rod of cylinder (17) is fixed with attacking head (18).
5. energy saving and environmental protection aluminium cell with self-baking anode according to claim 3 is characterized in that: outer tube (6) is provided with the cylinder (17) of vertical placement on every side, and the tailpiece of the piston rod of cylinder (17) is fixed with attacking head (18).
6. energy saving and environmental protection aluminium cell with self-baking anode according to claim 1 and 2 is characterized in that: filler (5,19) can adopt aluminum oxide, ALUMNIUM FLUORIDE or sodium aluminum fluoride.
7. energy saving and environmental protection aluminium cell with self-baking anode according to claim 1 and 2 is characterized in that: gas skirt (10) is to be formed by connecting through screw rod two semiclosed shape assemblies of being processed in channel-section steel, and the groove of assembly is positioned at gas skirt (10) inboard.
8. energy saving and environmental protection aluminium cell with self-baking anode according to claim 5 is characterized in that: gas skirt (10) is to be formed by connecting through screw rod two semiclosed shape assemblies of being processed in channel-section steel, and the groove of assembly is positioned at gas skirt (10) inboard.
9. energy saving and environmental protection aluminium cell with self-baking anode according to claim 1 and 2 is characterized in that: the size of anode body (4) is different.
10. energy saving and environmental protection aluminium cell with self-baking anode according to claim 4 is characterized in that: the size of anode body (4) is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101938815A CN101851765B (en) | 2010-06-04 | 2010-06-04 | Energy saving and environmental protection aluminium cell with self-baking anode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101938815A CN101851765B (en) | 2010-06-04 | 2010-06-04 | Energy saving and environmental protection aluminium cell with self-baking anode |
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| Publication Number | Publication Date |
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| CN101851765A CN101851765A (en) | 2010-10-06 |
| CN101851765B true CN101851765B (en) | 2012-01-11 |
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| CN2010101938815A Expired - Fee Related CN101851765B (en) | 2010-06-04 | 2010-06-04 | Energy saving and environmental protection aluminium cell with self-baking anode |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102560541A (en) * | 2012-01-10 | 2012-07-11 | 山西关铝股份有限公司 | Continuous electrode electrolytic cell for preparation of high-performance aluminum material |
| CN102560542B (en) * | 2012-01-10 | 2014-08-20 | 山西昇运有色金属有限公司 | Continuous anodic electrolytic cell for preparing high performance aluminum alloy |
| CN102560543A (en) * | 2012-01-10 | 2012-07-11 | 山西关铝股份有限公司 | Multiple continuous anodic electrolytic cell for preparing high performance aluminum alloy |
| CN102534669B (en) * | 2012-01-10 | 2014-07-23 | 山西昇运有色金属有限公司 | Multi-continuous-electrode electrolytic tank for preparation of high-performance aluminum material |
| 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 |
| CN106978610B (en) * | 2017-04-10 | 2019-04-16 | 中国铝业股份有限公司 | A method of reducing aluminium cell heat dissipation and slot flue gas emission |
| CN114030063B (en) * | 2021-11-03 | 2023-02-14 | 阿坝铝厂 | Pre-baked anode carbon block anti-oxidation structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179478A (en) * | 1995-11-20 | 1998-04-22 | 常建平 | Point-type connecting blanking and dry-purifying self-baking multi-anode aluminium electrolytic tank device |
| CN1270239A (en) * | 1999-04-09 | 2000-10-18 | 党建平 | Aluminium electrolyzer anode and its making method |
| CN201713581U (en) * | 2010-06-04 | 2011-01-19 | 山西关铝股份有限公司 | Energy-saving environment-friendly self-baking anode aluminum electrolytic cell |
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2010
- 2010-06-04 CN CN2010101938815A patent/CN101851765B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1179478A (en) * | 1995-11-20 | 1998-04-22 | 常建平 | Point-type connecting blanking and dry-purifying self-baking multi-anode aluminium electrolytic tank device |
| CN1270239A (en) * | 1999-04-09 | 2000-10-18 | 党建平 | Aluminium electrolyzer anode and its making method |
| CN201713581U (en) * | 2010-06-04 | 2011-01-19 | 山西关铝股份有限公司 | Energy-saving environment-friendly self-baking anode aluminum electrolytic cell |
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