CN102560556A - Aluminum oxide embedded type feeding device - Google Patents
Aluminum oxide embedded type feeding device Download PDFInfo
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- CN102560556A CN102560556A CN2012100067159A CN201210006715A CN102560556A CN 102560556 A CN102560556 A CN 102560556A CN 2012100067159 A CN2012100067159 A CN 2012100067159A CN 201210006715 A CN201210006715 A CN 201210006715A CN 102560556 A CN102560556 A CN 102560556A
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- aluminum oxide
- feeding device
- blanking
- type feeding
- embedded type
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Abstract
The invention relates to an aluminum oxide embedded type feeding device which is used for the construction and the production of an aluminum electrolytic cell aluminum oxide blanking system as well as the manufacture and the installation of an aluminum oxide embedded type feeding device component. The aluminum oxide embedded type feeding device is characterized in that a lower port of a guide blanking sleeve of the aluminum oxide embedded type feeding device is embedded in an aluminum electrolytic cell covering material heat-insulating layer. When the aluminum oxide embedded type feeding device feeds, aluminum oxide powder can be added into a molten electrolyte liquid layer in an aluminum electrolytic cell through a blanking port in the lower end of the guide blanking sleeve embedded in the aluminum electrolytic cell covering material heat-insulating layer under the ejection and pushing of a material pushing rod. In such a manner, the purposes of reducing the heat loss at the upper part of the electrolytic cell, adjusting the heat balance, saving the electricity consumption, controlling flue gas displacement and reducing the pollutant emission are achieved.
Description
Technical field: aluminum oxide is buried structure and the production that the formula feeding device is used for the aluminum oxide in aluminum electrolytic bath blanking system underground, and the making that aluminum oxide is buried formula feeding device member underground is made and installed.
Technical background: existing general aluminum oxide in aluminum electrolytic bath feeding device is the crust breaking and loading device; By being arranged on crust breaker that aluminium cell constitutes the crust breaking cylinder on the truss Steel Structure of anode block centre joint top, top, guiding blanking sleeve pipe, guide link and crust-breaking chips assembling and forming by the feeding device two great institutions system in combination structure that constant-volume blanking device, aluminum oxide powder tremie pipe are assembled into.
When carrying out alumina feeding, the crust breaking cylinder of crust breaking feeder apparatus drives the guide link and the crust-breaking chips that are arranged in the guiding blanking sleeve pipe and carries out shock motion up and down; The ionogen condensation crust layer that makes crust-breaking chips puncture earlier to sew in the anode block; On the crust layer, form a blanking hole that communicates with electrolyte solution, promptly impact the moulding feed opening, make the alumina feeding device then; The aluminum oxide powder of discharging in the constant-volume blanking device; Through the end of aluminum oxide powder tremie pipe, impact the blanking hole that forms through crust-breaking chips and promptly impact the moulding feed opening, flow in the ionogen liquation layer below the blanking hole; Make aluminum oxide powder in electrolyte solution, carry out decomposition reaction, shown in Figure of description 1.
Existing general aluminium cell crust breaking formula alumina feeding device exists following technological deficiency or deficiency:
The crust-breaking chips of 1 crust breaking cylinder connecting rod lower end; Form in the process of blanking hole at impact grinding crust layer; Crust-breaking chips and the frequent contact friction of electrolyte crust layer, ionogen is bigger to the electrochemical etching consumption of tup in addition, causes the serious wear of crust-breaking chips.
2 crust-breaking chipss impact formed electrolyte crust blanking hole, i.e. the shape of the feed opening that impact forms is irregularity very, causes aluminum oxide powder not add to fully in the fused electrolyte liquid, causes feeding quantity inaccurate, influences alumina concentration.
The end discharge port of the aluminum oxide powder tremie pipe of 3 feeding devices; Apart from the electrolyte solution laminar surface that impacts in the open blanking hole hole; The certain negative pressure space length is arranged, and in the process that flows into downwards, a part of aluminum oxide powder can be siphoned away by induced draft fan with negative pressure at aluminum oxide powder.
4 crust-breaking chipss impact the irregular feed opening that forms, and are an open base area that communicates with electrolyte solution, are carrying out the electrolysis deflated simultaneously; Its heat lost by radiation is serious; Influence the thermal equilibrium of electrolyzer, reduce the hot working efficiency of electrolyzer, cause the power consumption of electrolyzer to increase.
Summary of the invention: in order to overcome the above-mentioned defective of general at present crust breaking formula alumina feeding device, the invention provides a kind of new aluminum oxide in aluminum electrolytic bath feeding device technical scheme, promptly aluminum oxide is buried the formula feeding device underground, it is characterized in that; Aluminum oxide is buried the guiding blanking telescopic lower port of formula feeding device underground, is embedded in the aluminium cell mulch thermal insulation layer.
According to technique scheme; The guiding blanking sleeve pipe that aluminum oxide is buried the formula feeding device underground passes through connection mutually with aluminum oxide powder blanking lower end pipe.
According to technique scheme; Aluminum oxide is buried the formula feeding device underground, adds feed opening hole bottom in order to prevent to flow into, and the aluminum oxide powder of electrolyte solution upper surface forms condensation and piles up, and is provided with the stick pusher that can move up and down in the guiding blanking sleeve pipe.
According to technique scheme; Aluminum oxide is buried the formula feeding device underground when reinforced; Aluminum oxide powder is enough in being embedded in the aluminium cell mulch thermal insulation layer; The feed opening hole of guiding blanking sleeve pipe lower end; Under the pushing tow of stick pusher, add in the fused electrolyte liquid layer in the aluminium cell and go, the realization aluminum oxide is buried the formula feeding device underground and is carried the function of adding aluminum oxide powder.
According to technique scheme; Aluminum oxide is buried the formula feeding device underground, overflows for water electrolytic gas is discharged from the feed opening hole, on guiding blanking sleeve pipe, venting hole is set or is connected with vapor pipe.
Vapor pipe or venting hole are connected with the interior negative pressure ventilation and dust removal system of electrolyzer.
According to technique scheme; Aluminum oxide is buried the formula feeding device underground; In order to prevent to be embedded in the guiding blanking cover infratubal port in the aluminium cell mulch thermal insulation layer; Suffer the erosion scaling loss of electrolysis high-temperature gas; Reduce work-ing life, anti-corrosion pipe socket that the resistant to elevated temperatures material of the anti-water electrolytic gas burn into of usefulness becomes in the connection can be set in guiding blanking sleeve pipe lower end.
Aluminum oxide is buried formula feeding device advantage underground; Overcome the above-mentioned shortcoming of existing general crust breaking formula alumina feeding device, can realize that aluminum oxide is balanced reinforced, stablized the concentration of aluminum oxide; Reduce the wearing and tearing of crust-breaking chips; Reduce aluminium cell top heat leakage, adjustment electrolyzer thermal equilibrium, the disposal of pollutants of control electrolysis flue gas; Improve current efficiency, realize reducing the purpose of Aluminum Electrolysis Production power consumption.
Description of drawings:
Aluminum oxide of the present invention is buried the technical scheme and the characteristic of formula feeding device underground, and accompanying drawings and embodiment understand then more clear.
Fig. 1; Existing general aluminium cell crust breaking formula alumina feeding apparatus structure synoptic diagram
Fig. 2: aluminum oxide in aluminum electrolytic bath of the present invention is buried the structural representation of formula feeding device embodiment 1 underground.
Fig. 3: aluminum oxide in aluminum electrolytic bath of the present invention is buried the structural representation of formula feeding device embodiment 2 underground.
Shown in its figure; 1 guiding blanking sleeve pipe, 2 aluminum oxide powder tremie pipes, 3 stick pushers, 4 venting holes, 5 vapor pipes, 6 aluminum oxide powders, 7 anti-corrosion pipe sockets, 8 mulch thermal insulation layers, 9 ionogen liquid layers.
Specific embodiment:
Embodiment one: aluminum oxide of the present invention is buried the formula feeding device underground, and is as shown in Figure 1, and the bottom of its guiding blanking sleeve pipe (1) is embedded in the mulch thermal insulation layer (8) on aluminum cell electrolyte liquid layer (9) top, forms a semi-enclosed high temperature feed opening hole.
For the feeding quantity of controlled oxidation aluminium powder (6), guiding blanking sleeve pipe (1) passes through mutually with aluminum oxide powder tremie pipe (2) and is connected the port of aluminum oxide powder tremie pipe (2) and aluminum oxide constant-volume blanking device; Or the port of aluminum oxide flow director is connected; Form an aluminum oxide powder (6),, flow into guiding blanking sleeve pipe (1) through the alumina blanking pipe; Through the feed opening hole of guiding blanking sleeve pipe (1) lower end, add the aluminum oxide pipeline conveying and charging system in the ionogen liquid layer (9) to again.
Aluminum oxide in aluminum electrolytic bath of the present invention is buried underground in the formula feeding device; Still the crust breaking cylinder system that keeps former crust breaker blanking device; But to transform the shape of its crust-breaking chips; The incrustive function of puncture ionogen that crust-breaking chips had of former crust breaker is converted in ionogen liquid layer (9) extruding and pushes aluminum oxide powder (6) function, therefore crust-breaking chips is become to be called " stick pusher (3) ".
When aluminum oxide is buried the work of formula feeding device underground, adopt earlier and feed in raw material, the feed way that the back extruding pushes; Promptly earlier add aluminum oxide powder (6) to the electrolyte solution upper surface, in the semi-enclosed high temperature feed opening of mulch hole, slow down the condensing rate on electrolyte solution surface and the intensity on condensation top layer with this; Cause aluminum oxide powder (6) can successive and electrolyte solution fuse or obtain heating; Simultaneously, by setting journey, under the effect of cylinder; Be arranged on the guiding blanking sleeve pipe (stick pusher (3) in 1; Move back and forth, will be deposited in ionogen liquid layer (9) upper surface again, the aluminum oxide powder (6) of blanking sleeve pipe (1) bottom of promptly leading; In time push to be expressed in the electrolyte solution and go, realize that it adds the reinforced function of aluminum oxide powder to electrolyte solution.
In when work, reciprocating stick pusher (3) also has the function of cleaning tremie pipe and exhaust-duct, also possesses the function of feed opening insulation cover plate, overlaps the temperature in the infratubal port feed opening hole so as to improving blanking, prevents and reduces heat leakage.
Aluminum oxide is buried underground on the guiding blanking sleeve pipe (1) of formula feeding device, is provided with the vapor pipe (5) that is connected with venting hole (4).Promptly lead being configured to a tubular type communication means to blanking sleeve pipe (1) and vapor pipe (5).In order to keep the thermal equilibrium of electrolyzer, reduce heat leakage, prevent that too much heat from taking away through vapor pipe (5) system, can carry out Flow Control Design to the size of vapor pipe (5) road system and venting hole (4); The end of vapor pipe (5) is connected with depression dust-removing air inducing tubing system.
The material of the anti-corrosion pipe socket (7) of present embodiment 2 is heat-resisting spheroidal graphite cast iron, during use, will prevent the bottom of corrosion pipe socket (7), is provided with to be embedded in the mulch thermal insulation layer (8) on ionogen liquid layer (9) top.Guiding blanking sleeve pipe (1) and anti-corrosion pipe socket (7) two members can weld combination and be configured to parts.
Claims (5)
1. aluminum oxide is buried the formula feeding device underground, it is characterized in that; Aluminum oxide is buried the guiding blanking telescopic lower port of formula feeding device underground, is embedded in the aluminium cell mulch thermal insulation layer.
2. bury the formula feeding device underground according to the described aluminum oxide of claim 1, it is characterized in that: guiding blanking sleeve pipe passes through connection mutually with aluminum oxide powder blanking lower end pipe.
3. bury the formula feeding device underground according to the described aluminum oxide of claim 1, it is characterized in that: be provided with the stick pusher that can move up and down in the guiding blanking sleeve pipe.
4. bury the formula feeding device underground according to the described aluminum oxide of claim 1, it is characterized in that: be provided with on the guide thimble and be configured with vapor pipe or venting hole.
5. bury the formula feeding device underground according to the described aluminum oxide of claim 1, it is characterized in that: guiding blanking sleeve pipe lower end is provided with and is connected with the anti-corrosion pipe socket with the resistant to elevated temperatures material of anti-water electrolytic gas burn into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100067159A CN102560556A (en) | 2012-01-11 | 2012-01-11 | Aluminum oxide embedded type feeding device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100067159A CN102560556A (en) | 2012-01-11 | 2012-01-11 | Aluminum oxide embedded type feeding device |
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| CN102560556A true CN102560556A (en) | 2012-07-11 |
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| CN2012100067159A Pending CN102560556A (en) | 2012-01-11 | 2012-01-11 | Aluminum oxide embedded type feeding device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820813A (en) * | 2013-11-28 | 2014-05-28 | 云南云铝润鑫铝业有限公司 | Heat-preserving electrolytic tank |
| CN106319573A (en) * | 2016-11-07 | 2017-01-11 | 中国铝业股份有限公司 | Dischargingmethod for aluminum oxide of aluminum electrolysis cell |
| CN110225999A (en) * | 2017-01-24 | 2019-09-10 | 力拓艾尔坎国际有限公司 | Equipment for aluminium oxide to be supplied to electrolytic cell |
| WO2023206892A1 (en) * | 2022-04-29 | 2023-11-02 | 沈阳北冶冶金科技有限公司 | Method for collecting high-temperature anode gas of aluminum electrolysis cell |
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| CN102011149A (en) * | 2010-12-23 | 2011-04-13 | 高伟 | Inflow push type alumina feeding device |
| CN202000000U (en) * | 2011-01-17 | 2011-10-05 | 高德金 | Aluminum electrolysis cell with alumina shaping blanking mouth |
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| CN202323058U (en) * | 2011-10-18 | 2012-07-11 | 高伟 | Embedded type aluminum oxide feeding device |
| CN102628170A (en) * | 2011-10-18 | 2012-08-08 | 高伟 | Embedding-type alumina feeding device |
| CN202440556U (en) * | 2012-01-11 | 2012-09-19 | 高伟 | Alumina burying type feeding device |
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2012
- 2012-01-11 CN CN2012100067159A patent/CN102560556A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102260882A (en) * | 2010-12-17 | 2011-11-30 | 高伟 | Aluminum oxide blanking device clamping hanging block mounted aluminum electrolytic tank |
| CN102011149A (en) * | 2010-12-23 | 2011-04-13 | 高伟 | Inflow push type alumina feeding device |
| CN102251258A (en) * | 2010-12-23 | 2011-11-23 | 高伟 | Alumina feeding system device provided with inflow push type feeding device |
| CN202000000U (en) * | 2011-01-17 | 2011-10-05 | 高德金 | Aluminum electrolysis cell with alumina shaping blanking mouth |
| CN202323058U (en) * | 2011-10-18 | 2012-07-11 | 高伟 | Embedded type aluminum oxide feeding device |
| CN102628170A (en) * | 2011-10-18 | 2012-08-08 | 高伟 | Embedding-type alumina feeding device |
| CN202440556U (en) * | 2012-01-11 | 2012-09-19 | 高伟 | Alumina burying type feeding device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103820813A (en) * | 2013-11-28 | 2014-05-28 | 云南云铝润鑫铝业有限公司 | Heat-preserving electrolytic tank |
| 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 |
| CN106319573A (en) * | 2016-11-07 | 2017-01-11 | 中国铝业股份有限公司 | Dischargingmethod for aluminum oxide of aluminum electrolysis cell |
| CN106319573B (en) * | 2016-11-07 | 2019-05-24 | 中国铝业股份有限公司 | A kind of alumina blanking method of aluminium cell |
| CN110225999A (en) * | 2017-01-24 | 2019-09-10 | 力拓艾尔坎国际有限公司 | Equipment for aluminium oxide to be supplied to electrolytic cell |
| CN110225999B (en) * | 2017-01-24 | 2021-09-07 | 力拓艾尔坎国际有限公司 | Apparatus for supplying alumina to an electrolytic cell |
| WO2023206892A1 (en) * | 2022-04-29 | 2023-11-02 | 沈阳北冶冶金科技有限公司 | Method for collecting high-temperature anode gas of aluminum electrolysis cell |
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Application publication date: 20120711 |
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