CN201933165U - Electrolysis flue gas purifying feeding tank - Google Patents
Electrolysis flue gas purifying feeding tank Download PDFInfo
- Publication number
- CN201933165U CN201933165U CN201020693597XU CN201020693597U CN201933165U CN 201933165 U CN201933165 U CN 201933165U CN 201020693597X U CN201020693597X U CN 201020693597XU CN 201020693597 U CN201020693597 U CN 201020693597U CN 201933165 U CN201933165 U CN 201933165U
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- CN
- China
- Prior art keywords
- flue gas
- feeds intake
- feeding tank
- material outlet
- electrolysis flue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an electrolysis flue gas purifying feeding tank stable in feeding, which includes a feeding tank body which is provided with a boiling bed on the bottom; a material inlet and a material outlet are respectively disposed on the feeding tank bodies on two sides of the boiling bed; a baffle plate is placed between the material inlet and the material outlet; a slag removing hole is arranged on the feeding tank body; a flow control valve is installed on the material outlet which is the inlet of a filtering device at the same time; the filtering device includes an outer wall and a cover plate on the top of the outer wall; two layers of filter screens disposed in the vertical direction are connected inside the outer wall; the material outlet is located between two layers of the filter screens; and the inlet of the filtering device is located under the lower layer filter screen. In the utility model, the feeding tank is able to filter out the foreign materials in the aluminum oxide so as to avoid the obstruction of the filter screen and perform the flow control; the quantity of the aluminum oxide fed into the electrolysis flue gas purifying system is more stable so as to be beneficial to the aluminium electrolysis production; and the electrolysis flue gas purifying feeding tank is mainly used in the aluminium electrolysis industry.
Description
Technical field
The utility model relates to the electrolysis flue gas purification supplementary unit that a kind of electrolysis of aluminum industry is used.
Background technology
Fluoride salt is indispensable additive in aluminum current electrolysis production process, but simultaneously because fluorochemical in the pyritous fused electrolyte and raw material and airborne reaction of moisture generate hydrogen fluoride, hydrogen fluoride gas not only damages the healthy of production operation personnel, and surrounding environment caused serious pollution, endanger geographic farming, herd, the development of forestry.For many years, always in the actively hydrofluoric recycling in a organized way of control, the hydrogen fluoride gas that can be used as raw material is utilized once more, has reduced the consumption of fluoride salt, reduces the discharging of pollutent, reaches energy saving purposes both at home and abroad.
At present, mainly adopting dry cleaning both at home and abroad when aluminum electrolysis flue gas purification reclaims hydrogen fluoride, promptly utilize the good characteristic of aluminum oxide as the hydrofluoric material of absorption, is starting material, is again the gas cleaning sorbing material, is to kill two birds with one stone.This method is to drop into a large amount of aluminum oxide in containing hydrofluoric electrolysis flue gas, utilizes the stronger adsorptivity of aluminum oxide, and hydrogen fluoride firmly is adsorbed in the alumina particle, and the aluminum oxide electrolysis groove after fluorine-containing uses.Have only the aluminum oxide input amount to keep stable, just can reach good decontamination effect improving.Often only passed through simple filtering in the prior art before the aluminum oxide input is contained hydrofluoric electrolysis flue gas passage, owing to have a large amount of foreign material in the alumina material, latch up phenomenon often appears in filter screen, causes the instability that feeds intake, thereby influences decontamination effect improving.
The utility model content
In order to overcome the existing aluminum oxide unsettled deficiency that feeds intake, technical problem to be solved in the utility model provides a kind of electrolysis flue gas that feeds intake more stable and purifies the case that feeds intake.
The technical scheme that its technical problem that solves the utility model adopts is: electrolysis flue gas purifies the case that feeds intake, comprise that the bottom is provided with the casing that feeds intake of ebullated bed, be respectively arranged with material inlet and material outlet on the casing that feeds intake of ebullated bed both sides, also be provided with baffle plate between material inlet and the material outlet, also be equipped with cinder cleaning hole on the casing that feeds intake.
Described material outlet place is equipped with flowrate control valve.
Described cinder cleaning hole has two, is separately positioned on the side and the end face of the casing that feeds intake.
Described material outlet is the import of filtration unit simultaneously, described filtration unit comprises the cover plate at outer wall and top thereof, the two-layer filter screen of Bu Zhiing is connected outer pars intramuralis up and down, and material outlet is between two-layer filter screen, and the import of filtration unit is then under the filter screen of lower floor.
The beneficial effects of the utility model are: the case that feeds intake of the present utility model can filter away the foreign material in the aluminum oxide, avoided the filter screen obstruction, also can carry out flow control, the aluminum oxide charging capacity that drops into the electrolysis flue gas purification system is more stable, helps Aluminium Electrolysis.
Description of drawings
Fig. 1 is a synoptic diagram of the present utility model.
Be labeled as 1-feed bin chute, 2-cinder cleaning hole, 3-baffle plate, 4-flowrate control valve, 5-filter screen, 6-cover plate, 7-ebullated bed, the 8-casing that feeds intake, 9-material inlet, 10-material outlet, 11-filtration unit, 12-outer wall, 13-cinder cleaning hole among the figure.
Arrow is depicted as flow direction of material among the figure.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified.
As shown in Figure 1, electrolysis flue gas of the present utility model purifies the case that feeds intake and comprises that the bottom is provided with the casing 8 that feeds intake of ebullated bed 7, be respectively arranged with material inlet 9 and material outlet 10 on the casing 8 that feeds intake of ebullated bed 7 both sides, also be provided with baffle plate 3 between material inlet 9 and the material outlet 10, ebullated bed 7 makes the aluminum oxide that enters the casing 8 that feeds intake be similar gaseous state distribution, then sweep along wherein foreign material easily to be separated and under the effect of baffle plate 3, be deposited in the casing 8 that feeds intake, a large amount of foreign material in this handles rear oxidation aluminium are eliminated, filter screen is difficult for stopping up when containing its input in the hydrofluoric electrolysis flue gas so again, helps maintenance and feeds intake stable.After operation for some time, sedimentary foreign material take out in the casing 8 that needs to feed intake, and therefore also are provided with cinder cleaning hole 2 on the casing 8 that feeds intake.
According to the charging capacity of the hydrogen fluoride content controlled oxidation aluminium in the flue gas, can flowrate control valve 4 be installed for further at described material outlet 10 places.Described flowrate control valve 4 can adopt flow control board.
Be the operation that sedimentary foreign material in the convenient casing 8 that will feed intake take out, described cinder cleaning hole 2 has two, is separately positioned on the side and the end face of the casing 8 that feeds intake.
As shown in Figure 1, consider and also have a large amount of aluminum oxide in the sedimentary foreign material, in order to improve the utilization ratio of aluminum oxide, outside the case that feeds intake, dispose a filtration unit 11 in addition, described material outlet 10 is the import of filtration unit 11 simultaneously, described filtration unit 11 comprises the cover plate 6 at outer wall 12 and top thereof, the two-layer filter screen 5 of Bu Zhiing is connected outer wall 12 inside up and down, material outlet 10 is between two-layer filter screen 5, the import of filtration unit 11 is then under the filter screen 5 of lower floor, naturally send by the outlet of filtration unit 11 through lower screen 5 backs under action of gravity by the aluminum oxide that material outlet 10 comes out, as absorption of hydrogen fluoride agent in the electrolysis flue gas, and the foreign material that clear in the casing 8 that feeds intake can enter filtration unit 11 and sent by the outlet of filtration unit 11 behind two-layer filter screen 5 again from cover plate 6, as absorption of hydrogen fluoride agent in the electrolysis flue gas.
During use, electrolysis flue gas of the present utility model is purified the case that feeds intake be installed in the feed bin chute 1 of aluminum oxide storage bunker and contain between the hydrofluoric electrolysis flue gas passage, and dispose described filtration unit 11.
Its working process is as follows:
As shown in Figure 1, aluminum oxide enters in the casing 8 that feeds intake through feed bin chute 1 and material inlet 9, aluminum oxide is under the effect of ebullated bed 7 and baffle plate 3, foreign material precipitate, remove aluminum oxide behind the foreign material and enter filtration unit 11 after by baffle plate 3, flow control board as flowrate control valve 4, after passing through filter screen 5 again, enter next flow process as sorbent material.
Along with the foreign material precipitation increases, need foreign material are gone out clearly from cinder cleaning hole 2, the foreign material that go out clearly contain more aluminum oxide, open cover plate 6, and the alumina mixture that will contain foreign material enters next flow process after two-layer filter screen 5 filters.
For the convenient foreign material that still may exist on the filter screen 5 of lower floor of removing, should on the outer wall 12 of filtration unit 11, also offer cinder cleaning hole 13.
Claims (4)
1. electrolysis flue gas purifies the case that feeds intake, it is characterized in that: comprise that the bottom is provided with the casing that feeds intake (8) of ebullated bed (7), be respectively arranged with material inlet (9) and material outlet (10) on the casing that feeds intake (8) of ebullated bed (7) both sides, also be provided with baffle plate (3) between material inlet (9) and the material outlet (10), also be provided with cinder cleaning hole (2) on the casing that feeds intake (8).
2. electrolysis flue gas as claimed in claim 1 purifies the case that feeds intake, and it is characterized in that: described material outlet (10) locates to be equipped with flowrate control valve (4).
3. electrolysis flue gas as claimed in claim 1 purifies the case that feeds intake, and it is characterized in that: described cinder cleaning hole (2) has two, is separately positioned on the side and the end face of the casing that feeds intake (8).
4. purify the case that feeds intake as claim 1,2 or 3 described electrolysis flue gas, it is characterized in that: described material outlet (10) is the import of filtration unit (11) simultaneously, described filtration unit (11) comprises the cover plate (6) at outer wall (12) and top thereof, the two-layer filter screen (5) of Bu Zhiing is connected outer wall (12) inside up and down, material outlet (10) is positioned between the two-layer filter screen (5), and the import of filtration unit (11) is then under the filter screen (5) of lower floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020693597XU CN201933165U (en) | 2010-12-31 | 2010-12-31 | Electrolysis flue gas purifying feeding tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020693597XU CN201933165U (en) | 2010-12-31 | 2010-12-31 | Electrolysis flue gas purifying feeding tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201933165U true CN201933165U (en) | 2011-08-17 |
Family
ID=44444698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020693597XU Expired - Lifetime CN201933165U (en) | 2010-12-31 | 2010-12-31 | Electrolysis flue gas purifying feeding tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201933165U (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 |
-
2010
- 2010-12-31 CN CN201020693597XU patent/CN201933165U/en not_active Expired - Lifetime
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 | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |