CN201517136U - Alumina powder exhaust device for electrolysis bath - Google Patents
Alumina powder exhaust device for electrolysis bath Download PDFInfo
- Publication number
- CN201517136U CN201517136U CN2008202306168U CN200820230616U CN201517136U CN 201517136 U CN201517136 U CN 201517136U CN 2008202306168 U CN2008202306168 U CN 2008202306168U CN 200820230616 U CN200820230616 U CN 200820230616U CN 201517136 U CN201517136 U CN 201517136U
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- pipe
- electrolysis bath
- dust
- electrolyzer
- hole
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- Expired - Fee Related
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Abstract
An alumina powder exhaust device for an electrolysis bath has the technical key points as follows: an original anti-dust pipe in an electrolysis bath work bin is removed, or the anti-dust pipe is blocked off; a hole is formed at the top of the electrolysis bath work bin, and another hole is also formed on a branch smoke pipe of the electrolysis bath; a connecting pipe is installed on each hole respectively; and the two connecting pipes are connected with a dust exhaust pipe through two flexible joint rubber tubes. When material is fed every time, a little flying alumina enters the dust exhaust pipe through the hole formed at the top of the work bin, then is sucked in a chimney flue because of the negative pressure in the branch smoke pipe, and finally enters a flue gas purification system, thereby preventing redundant alumina powders from entering the electrolysis bath. If stoppage occurs, the flexible joint rubber tubes at the two ends of the dust exhaust pipe are removed, so that the connecting pipes and the dust exhaust pipe can be cleared out. The alumina powder exhaust device has the advantages of simple structure and convenient installation, can reduce the labor intensity of workers, reduces sediments in the electrolysis bath, improves the situations that current is abnormally distributed at a bath bottom and local parts are overheated, stabilizes the production technique condition of the electrolysis bath, reduces the power consumption, and prolongs the service cycle of a cathode bath bottom and the service life of the electrolysis bath.
Description
Technical field
The utility model relates to a kind of device that electrolyzer aluminum oxide dust discharge material reclaims that is used in the aluminum smelting technology process.
Background technology
At present most electrolysis aluminum production enterprises, the former dust flue design of electrolyzer is in the hopper air chamber, the aluminum oxide mode of movement takes concentrated phase and super concentrated phase to carry feed, when carrying aluminum oxide, form malleation in the hopper by the dust flue combustion gas, the aluminum oxide that flies upward in the hopper this moment returns from dust flue and is discharged in the gas skirt, has only part to fly upward material and discharges with gas, and remainder is deposited on the interior aluminium oxide shell face of gas skirt.Along with crust breaking cylinder work, be deposited in the aluminum oxide or the stifled card crust-breaking chips of aluminium oxide shell face, opened the shell face by crust-breaking chips and fall in the groove, in electrolyzer, formed a large amount of precipitations, cause bottom land distribution of current inequality, local superheating, except that increasing bottom land voltage, increase the power consumption, and worsen electrolytic process, cause the technical qualification instability, also can cause breakage at the bottom of the cathode can because of the effect that thermal stresses changes, directly influence cell life.Enter electrolyzer in order to reduce aluminum oxide, must take off aluminum oxide from the aluminium oxide shell face with artificial recruitment tool, thereby increase labor strength.
Summary of the invention
The technical problems to be solved in the utility model is: design a kind of electrolyzer aluminum oxide dust exhaust, this device directly connects alumina reservoir and smoking pipe, to solve the excessive accumulation of alumina raw material in the electrolyzer, thereby the problem of local superheating in the electrolyzer that causes, stablize the electrolyzer production specifications, reduce power consumption, life cycle and electrolytic bath life-span at the bottom of the prolongation cathode can.
Solving the technical scheme that the utility model problem taked is: remove in the electrolytic bath feed box former anti-dirt pipe or with the shutoff of anti-dirt pipe, open a hole at the electrolytic bath feed box top, on the electrolyzer smoking pipe, also open a hole, electrolytic bath feed box and smoking pipe are coupled together with a dust flue.
In order to prevent to stop up, be convenient to cleaning, on electrolytic bath feed box top and electrolyzer smoking pipe, respectively be provided with a pipe connecting, be connected with one section sebific duct that is flexible coupling respectively between two pipe connectings and the dust flue.
Positively effect of the present utility model is: simple in structure, easy for installation, can reduce worker's labour intensity, reduce precipitation in the electrolyzer, improve bottom land distribution of current inequality, the situation of local superheating has been stablized the electrolyzer production specifications, reduce power consumption, prolonged the cell life of life cycle and electrolyzer at the bottom of the cathode can.
Description of drawings
User mode synoptic diagram of the present utility model
Embodiment
As shown in the figure, with the former anti-dirt pipe 2 in steel plate shutoff electrolyzer 1 hopper 3, the hole of opening a diameter 50mm at electrolyzer 1 hopper 3 air chamber tops, at long diameter 50mm of outside, top welding, the pipe connecting 4 of long 150mm, equally a long diameter 50mm is welded in the hole of opening a diameter 50mm in the corresponding position of the smoking pipe 10 of electrolyzer 1, the pipe connecting 9 of long 150mm, two ends couple together intermediary dust flue 6 with two sections sebific ducts 5,8 then.
When each feed, alumina raw material enters electrolytic bath feed box 3 from air-driven chute 7, most alumina raw materials enter electrolyzer from the hopper feed opening, small portion flies upward aluminum oxide and enters dust flue 6 from the hole at hopper 3 tops and sucked flues by the negative pressure in the smoking pipe 10 and enter flue gas purification system, thereby has avoided unnecessary aluminum oxide powder to enter electrolyzer.
If when taking place to stop up, remove the sebific duct 5,8 that is flexible coupling at dust flue 6 two ends, can remove pipe connecting 4,9 and dust flue 6.
Claims (2)
1. electrolyzer aluminum oxide dust exhaust, it is characterized in that: with anti-dirt pipe (2) shutoff in electrolyzer (1) hopper (3), open a hole at electrolyzer (1) hopper (3) top, on the smoking pipe (10) of electrolyzer (1), also open a hole, electrolytic bath feed box (3) and smoking pipe (10) are coupled together with a dust flue (6).
2. electrolyzer aluminum oxide dust exhaust according to claim 1, it is characterized in that: on electrolytic bath feed box (3) top and electrolyzer smoking pipe (10), respectively be provided with a pipe connecting (4,9), be connected with one section sebific duct that is flexible coupling (5,8) respectively between two pipe connectings (4,9) and the dust flue (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202306168U CN201517136U (en) | 2008-12-05 | 2008-12-05 | Alumina powder exhaust device for electrolysis bath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008202306168U CN201517136U (en) | 2008-12-05 | 2008-12-05 | Alumina powder exhaust device for electrolysis bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517136U true CN201517136U (en) | 2010-06-30 |
Family
ID=42497857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008202306168U Expired - Fee Related CN201517136U (en) | 2008-12-05 | 2008-12-05 | Alumina powder exhaust device for electrolysis bath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160862A (en) * | 2011-12-14 | 2013-06-19 | 贵阳铝镁设计研究院有限公司 | Device for purifying high-concentration smoke in an aluminum electrolytic cell |
-
2008
- 2008-12-05 CN CN2008202306168U patent/CN201517136U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160862A (en) * | 2011-12-14 | 2013-06-19 | 贵阳铝镁设计研究院有限公司 | Device for purifying high-concentration smoke in an aluminum electrolytic cell |
| CN103160862B (en) * | 2011-12-14 | 2015-11-18 | 贵阳铝镁设计研究院有限公司 | Aluminium cell high-concentration fume is through the refining plant of hopper |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20101205 |