CN105671594A - Continuous aluminum oxide feeding equipment - Google Patents
Continuous aluminum oxide feeding equipment Download PDFInfo
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- CN105671594A CN105671594A CN201610016571.3A CN201610016571A CN105671594A CN 105671594 A CN105671594 A CN 105671594A CN 201610016571 A CN201610016571 A CN 201610016571A CN 105671594 A CN105671594 A CN 105671594A
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- China
- Prior art keywords
- aluminium oxide
- buffer
- continuous blanking
- aluminum oxide
- blanking equipment
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/14—Devices for feeding or crust breaking
Abstract
The invention discloses continuous aluminum oxide feeding equipment which comprises a material box, a feeding air cylinder, a fixed container, a crust breaking head, a material passing frame, an oblique plate, a buffer and a feeding pipe. The feeding pipe is led to the bottom of the crust breaking head. The continuous aluminum oxide feeding equipment further comprises an air pipe which is arranged at a buffer outlet and used for blowing air to the buffer outlet. Compared with the prior art, the continuous aluminum oxide feeding equipment has the beneficial effects that (1) aluminum oxide is made to enter an electrolyte slowly, and the temperature fluctuation of an electrolytic cell and the concentration fluctuation of the aluminum oxide are reduced, so that the current efficiency is improved, and energy consumption is reduced; (2) the aluminum oxide is made to have enough time to be melted into the electrolyte, so that sediment at the furnace bottom is reduced, the pressure drop at the furnace bottom is reduced, and energy consumption is reduced; (3) the aluminum oxide is made to enter the electrolyte slowly through a pipeline, and the crust breaking head is prevented from being impacted so that the aluminum oxide can be prevented from being dispersed, the actual amount of materials entering the electrolytic cell is increased, and the effect coefficient is decreased; and (4) large particles in the aluminum oxide are blown away through the gas reverse blowing principle, so that blockage is eliminated, and the hole blockage phenomenon can be effectively prevented.
Description
[technical field]
The present invention relates to electrolysis tech field, be specifically related to a kind of continuous blanking equipment of aluminium oxide.
[background technology]
When prepared by electrolytic aluminium, it is necessary to utilize the continuous blanking equipment of aluminium oxide to add alumina powder in electrolysis bath, in correlation technique, timing constant-volume blanking device is adopted to carry out compartment blanking. The continuous blanking equipment of this aluminium oxide, including: for taking up the hopper of alumina powder, it is arranged at the blanking cylinder bottom described hopper, be arranged at below described blanking cylinder and with the constant volume device of described blanking cylinders, described aluminium oxide continuous blanking device also includes for breaking up the crust breaking end of material surface in electrolytic bath, is provided with the punishment in advance frame entering electrolysis bath into aluminium oxide from constant volume device between described crust breaking end and described constant volume device. The deficiency of correlation technique is in that, (1) this cutting mode is compartment blanking, and substantially, before blanking, concentration is low in alumina concentration fluctuation, and after blanking, concentration is high, and the fluctuation of groove thermal balance is big, affects stability and the current efficiency of electrolysis bath; (2) a large amount of aluminium oxide is entered under point feeding mode single, and course of dissolution that the low overheat process route adopted at present makes aluminium oxide is more difficult, undissolved aluminium oxide sinks to aluminum liquid, so cause and aluminum liquid layer is piled up immediately below feed opening a large amount of precipitation of alumina, precipitate along with the flowing of aluminum liquid covers furnace bottom, cause hearth and bottom to raise, increase energy consumption, severe patient may result in deformity burner hearth, affects groove life; (3) a large amount of aluminium oxidies entered under single accelerate on blanking swash plate, clash into after crust breaking end in outlet and scatter everywhere, actual enter groove material reduce, easy priming effect.
Therefore, it is necessary in fact to provide a kind of continuous blanking equipment of new aluminium oxide to overcome above-mentioned technical problem.
[summary of the invention]
The technical issues that need to address of the present invention are to provide a kind of continuous blanking equipment of aluminium oxide, including: for taking up the hopper of alumina powder, be arranged at the blanking cylinder bottom described hopper, be arranged at below described blanking cylinder and with the constant volume device of described blanking cylinders; Described aluminium oxide continuous blanking device also includes for breaking up the crust breaking end on the surface of material in electrolytic bath, the punishment in advance frame entering electrolysis bath into aluminium oxide from constant volume device it is provided with between described crust breaking end and described constant volume device, described punishment in advance frame includes a swash plate, wherein, the continuous blanking equipment of described aluminium oxide also includes the buffer being arranged in described punishment in advance frame, described buffer and described swash plate surround up big and down small funnel-form receiving space jointly, the top of described receiving space is buffering entrance, and the bottom of described receiving space is buffer outlet;The continuous blanking equipment of described aluminium oxide also includes being arranged at the tremie pipe below described buffer, and described tremie pipe connects described buffer outlet, and leads to the bottom of described crust breaking end; The continuous blanking equipment of described aluminium oxide also includes the trachea for blowing being arranged at described buffer outlet to described buffer outlet.
Preferably, described buffer is welded by three pieces of iron plates, and described buffer and described swash plate surround receiving space jointly, and the cross sectional shape of described receiving space is the tetragon tapered into from top to bottom.
Preferably, described buffer is welded by two pieces of iron plates, and described buffer and described swash plate surround receiving space jointly, and the cross sectional shape of described receiving space is the triangle tapered into from top to bottom.
Preferably, described buffer is welded on described swash plate after being reversed by one piece of fan-shaped iron plate, and described buffer and described swash plate surround receiving space jointly, and the cross sectional shape of described receiving space is the semicircle tapered into from top to bottom.
Preferably, described buffer outlet is 3-35cm to the distance of described swash plate bottom.
Preferably, described buffer outlet area is 100-2000mm2。
Preferably, the continuous blanking equipment of described aluminium oxide also includes the gas skirt being positioned at upper part of the electrolytic cell, and described tremie pipe is welded on described gas skirt by connecting plate.
Preferably, being bending-like bottom described tremie pipe, bending angle is 30-75 °, bottom described tremie pipe with described crust breaking end bottom distance≤10cm.
Preferably, described crust breaking end includes exhaust outlet, and one end of described trachea is connected with described exhaust outlet, and the other end of described trachea is arranged at described buffer outlet place, and the source of the gas of described trachea is from described exhaust outlet.
Preferably, one end of described trachea is connected with external gas source through electromagnetic valve, and one end of described trachea is arranged at described buffer outlet place, and the source of the gas of described trachea is from described external gas source.
Compared with correlation technique, the beneficial effects of the present invention is, (1) makes aluminium oxide slowly enter electrolyte, reduces temperature and the alumina concentration fluctuation of electrolysis bath, and then improves current efficiency, reduces energy consumption; (2) make aluminium oxide have the time of abundance to melt entrance electrolyte, thus reducing the formation of bearth precipitation, reducing hearth and bottom, reducing energy consumption; (3) make aluminium oxide slowly enter electrolyte by pipeline, do not strike against crust breaking end and scatter, actual enter groove material increase, reduce effect coefficient; (4) utilize blow-back principle, blow away oarse-grained blocking in aluminium oxide, can effectively prevent plug-hole phenomenon.
[accompanying drawing explanation]
Fig. 1Overall structure (source of the gas from crust breaking end exhaust outlet) signal for the present invention continuous blanking equipment of a kind of aluminium oxideFigure;
Fig. 2Expansion for the buffer being welded by three pieces of iron plates of the present invention continuous blanking equipment of a kind of aluminium oxideFigure;
Fig. 3Master for the tremie pipe of the present invention continuous blanking equipment of a kind of aluminium oxide looksFigure;
Fig. 4Left view for the tremie pipe of the present invention continuous blanking equipment of a kind of aluminium oxideFigure;
Fig. 5Overall structure (source of the gas carrys out external gas source) for the present invention continuous blanking equipment of a kind of aluminium oxide is illustratedFigure。
In figure: hopper 1, blanking cylinder 2, constant volume device 3, electrolysis bath (FigureDo not show), crust breaking end 4, exhaust outlet 41, punishment in advance frame 5, swash plate 51, buffer 6, receiving space 7, cushions entrance 71, buffer outlet 72, tremie pipe 8, trachea 9, gas skirt 10, electromagnetic valve 11, external gas source 12.
[detailed description of the invention]
Below in conjunction withAccompanying drawingThe invention will be further described with embodiment.
Referring toFig. 1-Fig. 5, a kind of continuous blanking equipment of aluminium oxide, including: for taking up the hopper 1 of alumina powder, it is arranged at the blanking cylinder 2 bottom hopper 1, is arranged at the constant volume device 3 being connected below blanking cylinder 2 and with blanking cylinder 2; Aluminium oxide continuous blanking device also include for break up electrolysis bath (FigureDo not show) crust breaking end 4 on the surface of material in groove, be provided with between crust breaking end 4 and constant volume device 3 for aluminium oxide from constant volume device 3 enter electrolysis bath (FigureDo not show) punishment in advance frame 5, punishment in advance frame 5 includes a swash plate 51, wherein, the continuous blanking equipment of aluminium oxide also includes the buffer 6 being arranged in punishment in advance frame 5, buffer 6 and swash plate 51 surround up big and down small funnel-form receiving space 7 jointly, the top of receiving space 7 is buffering entrance 71, and the bottom of receiving space 7 is buffer outlet 72; The continuous blanking equipment of aluminium oxide also includes the tremie pipe 8 being arranged at below buffer 6, and tremie pipe 8 connects buffer outlet 72, and leads to the bottom of crust breaking end 4; The continuous blanking equipment of aluminium oxide also includes the trachea 9 for blowing being arranged at buffer outlet 72 to buffer outlet 72.
Buffer 6 is welded by three pieces of iron plates, and buffer 6 and swash plate 51 surround receiving space 7 jointly, and the cross sectional shape of receiving space 7 is the tetragon tapered into from top to bottom. The volume of receiving space is identical with the capacity of the alumina powder in constant volume device.
Buffer outlet 72 is 3-35cm to the distance of swash plate 51 bottom. The present embodiment is 20cm.
Buffer outlet 72 area is 100-2000mm2. The present embodiment is 360mm2。
The continuous blanking equipment of aluminium oxide also include being positioned at electrolysis bath (FigureDo not show) gas skirt 10 on top, tremie pipe 8 is by connecting plate welding gas skirt 10.
Being bending-like bottom tremie pipe 8, bending angle is A, A=30-75 °, is 50 ° in the present embodiment.
Bottom tremie pipe 8 with crust breaking end 4 bottom distance≤10cm.
Crust breaking end 4 includes exhaust outlet 41,
Such as Fig. 1, one end of trachea 9 is connected with exhaust outlet 41, and the other end of trachea 9 is arranged at buffer outlet 72 place, and the source of the gas of trachea 9 is from exhaust outlet 41.
Such as Fig. 5Shown in, one end of trachea 9 is connected with external gas source 12 through electromagnetic valve 11, and one end of trachea 9 is arranged at buffer outlet 72 place, and the source of the gas of trachea 9 is from external gas source 12.
The beneficial effects of the present invention is, (1) makes aluminium oxide slowly enter electrolyte, reduces temperature and the alumina concentration fluctuation of electrolysis bath, and then improves current efficiency, reduces energy consumption; (2) make aluminium oxide have the time of abundance to melt entrance electrolyte, thus reducing the formation of bearth precipitation, reducing hearth and bottom, reducing energy consumption; (3) make aluminium oxide slowly enter electrolyte by pipeline, do not strike against crust breaking end and scatter, actual enter groove material increase, reduce effect coefficient; (4) utilize blow-back principle, blow away oarse-grained blocking in aluminium oxide, can effectively prevent plug-hole phenomenon.
Above-described is only embodiments of the present invention, it should be noted here that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it is also possible to make improvement, but these belong to protection scope of the present invention.
Claims (10)
1. the continuous blanking equipment of aluminium oxide, including: for taking up the hopper of alumina powder, be arranged at the blanking cylinder bottom described hopper, be arranged at below described blanking cylinder and with the constant volume device of described blanking cylinders;Described aluminium oxide continuous blanking device also includes for breaking up the crust breaking end on the surface of material in electrolytic bath, the punishment in advance frame entering electrolysis bath into aluminium oxide from constant volume device it is provided with between described crust breaking end and described constant volume device, described punishment in advance frame includes a swash plate, it is characterized in that, the continuous blanking equipment of described aluminium oxide also includes the buffer being arranged in described punishment in advance frame, described buffer and described swash plate surround up big and down small funnel-form receiving space jointly, the top of described receiving space is buffering entrance, and the bottom of described receiving space is buffer outlet; The continuous blanking equipment of described aluminium oxide also includes being arranged at the tremie pipe below described buffer, and described tremie pipe connects described buffer outlet, and leads to the bottom of described crust breaking end; The continuous blanking equipment of described aluminium oxide also includes the trachea for blowing being arranged at described buffer outlet to described buffer outlet.
2. the continuous blanking equipment of aluminium oxide according to claim 1, it is characterized in that, described buffer is welded by three pieces of iron plates, and described buffer and described swash plate surround receiving space jointly, and the cross sectional shape of described receiving space is the tetragon tapered into from top to bottom.
3. the continuous blanking equipment of aluminium oxide according to claim 1, it is characterized in that, described buffer is welded by two pieces of iron plates, and described buffer and described swash plate surround receiving space jointly, and the cross sectional shape of described receiving space is the triangle tapered into from top to bottom.
4. the continuous blanking equipment of aluminium oxide according to claim 1, it is characterized in that, described buffer is welded on described swash plate after being reversed by one piece of fan-shaped iron plate, described buffer and described swash plate surround receiving space jointly, and the cross sectional shape of described receiving space is the semicircle tapered into from top to bottom.
5. the continuous blanking equipment of aluminium oxide according to any one of claim 1-4, it is characterised in that described buffer outlet is 3-35cm to the distance of described swash plate bottom.
6. the continuous blanking equipment of aluminium oxide according to claim 5, it is characterised in that described buffer outlet area is 100-2000mm2。
7. the continuous blanking equipment of aluminium oxide according to claim 6, it is characterised in that the continuous blanking equipment of described aluminium oxide also includes the gas skirt being positioned at upper part of the electrolytic cell, and described tremie pipe is welded on described gas skirt by connecting plate.
8. the continuous blanking equipment of aluminium oxide according to claim 7, it is characterised in that being bending-like bottom described tremie pipe, bending angle is 30-75 °, bottom described tremie pipe with described crust breaking end bottom distance≤10cm.
9. the continuous blanking equipment of aluminium oxide according to claim 8, it is characterized in that, described crust breaking end includes exhaust outlet, and one end of described trachea is connected with described exhaust outlet, the other end of described trachea is arranged at described buffer outlet place, and the source of the gas of described trachea is from described exhaust outlet.
10. the continuous blanking equipment of aluminium oxide according to claim 8, it is characterised in that one end of described trachea is connected with external gas source through electromagnetic valve, the other end of described trachea is arranged at described buffer outlet place, and the source of the gas of described trachea is from described external gas source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610016571.3A CN105671594B (en) | 2016-01-12 | 2016-01-12 | The continuous blanking equipment of aluminum oxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610016571.3A CN105671594B (en) | 2016-01-12 | 2016-01-12 | The continuous blanking equipment of aluminum oxide |
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| CN105671594A true CN105671594A (en) | 2016-06-15 |
| CN105671594B CN105671594B (en) | 2017-11-24 |
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| CN201610016571.3A Active CN105671594B (en) | 2016-01-12 | 2016-01-12 | The continuous blanking equipment of aluminum oxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2626261C1 (en) * | 2016-08-25 | 2017-07-25 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Device for dosing feed stock supply to aluminium electrolyser |
| 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 |
Citations (5)
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| US3901787A (en) * | 1974-03-07 | 1975-08-26 | Nippon Light Metal Co | Alumina feeder for electrolytic cells |
| DE3108121A1 (en) * | 1981-02-27 | 1982-09-23 | Schweizerische Aluminium AG, 3965 Chippis | Apparatus for metering a fine-grained, flowable bulk material |
| CN103114305A (en) * | 2013-02-04 | 2013-05-22 | 湖南创元铝业有限公司 | Continuous feeding device for aluminum electrolysis cell and electrolysis cell with same |
| CN104608947A (en) * | 2015-01-09 | 2015-05-13 | 常州先进制造技术研究所 | Quantitative particle material feeding system |
| CN204661839U (en) * | 2015-05-28 | 2015-09-23 | 湖南创元铝业有限公司 | Aluminum oxide continuous blanking device |
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2016
- 2016-01-12 CN CN201610016571.3A patent/CN105671594B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3901787A (en) * | 1974-03-07 | 1975-08-26 | Nippon Light Metal Co | Alumina feeder for electrolytic cells |
| DE3108121A1 (en) * | 1981-02-27 | 1982-09-23 | Schweizerische Aluminium AG, 3965 Chippis | Apparatus for metering a fine-grained, flowable bulk material |
| CN103114305A (en) * | 2013-02-04 | 2013-05-22 | 湖南创元铝业有限公司 | Continuous feeding device for aluminum electrolysis cell and electrolysis cell with same |
| CN104608947A (en) * | 2015-01-09 | 2015-05-13 | 常州先进制造技术研究所 | Quantitative particle material feeding system |
| CN204661839U (en) * | 2015-05-28 | 2015-09-23 | 湖南创元铝业有限公司 | Aluminum oxide continuous blanking device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2626261C1 (en) * | 2016-08-25 | 2017-07-25 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Device for dosing feed stock supply to aluminium electrolyser |
| WO2018038636A1 (en) * | 2016-08-25 | 2018-03-01 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Device for the metered supply of raw material to an aluminium electrolytic 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 |
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| CN105671594B (en) | 2017-11-24 |
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Effective date of registration: 20170825 Address after: Sheng Tong Industrial Park No. 109 Venus Road 410200 in Hunan province Changsha District of Wangcheng City Applicant after: Suntown Technology Group Corporation Address before: Taoyuan County in Hunan province Changde city 415700 disk town Chuangyuan Industrial Park Applicant before: Hunan Chuangyuan Aluminium Industry Co., Ltd. |
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