CN210420203U - Aluminum oxide powder recovery device for aluminum electrolysis cell - Google Patents
Aluminum oxide powder recovery device for aluminum electrolysis cell Download PDFInfo
- Publication number
- CN210420203U CN210420203U CN201921314445.1U CN201921314445U CN210420203U CN 210420203 U CN210420203 U CN 210420203U CN 201921314445 U CN201921314445 U CN 201921314445U CN 210420203 U CN210420203 U CN 210420203U
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- Prior art keywords
- dust collecting
- dust
- powder
- recovery device
- aluminum
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- 239000000843 powder Substances 0.000 title claims abstract description 71
- 238000011084 recovery Methods 0.000 title claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 16
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 title claims description 9
- 238000005868 electrolysis reaction Methods 0.000 title claims description 7
- 239000000428 dust Substances 0.000 claims abstract description 87
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 66
- 238000001914 filtration Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 13
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 8
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 8
- 241001330002 Bambuseae Species 0.000 abstract description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 8
- 239000011425 bamboo Substances 0.000 abstract description 8
- 239000004411 aluminium Substances 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Electrolytic Production Of Metals (AREA)
Abstract
The utility model relates to an aluminium cell alumina powder recovery unit, including being connected with the negative pressure and producing a device dust collection section of thick bamboo, be provided with into dirt mouth on the dust collection section of thick bamboo, in the dust collection section of thick bamboo in the downside of entering dirt mouth is provided with big-end-up's hopper that gathers dust, and the lower extreme of hopper that gathers dust has the powder that oxygen supply aluminium powder passes through and passes through the mouth, in the dust collection section of thick bamboo in the downside of hopper that gathers dust is the powder collection chamber, has seted up on the lateral wall of the dust collection section of thick bamboo and has flown upward the material export, gather dust the section of thick bamboo outside be provided with fly upward the communicating filtration storehouse of material export. The utility model provides a prior art when collecting to aluminium oxide, the less aluminium oxide powder of quality erodees the more serious technical problem of filter equipment because of the velocity of flow is too high.
Description
Technical Field
The utility model relates to an aluminum cell alumina powder recovery unit in the field of electrolytic aluminum.
Background
The electrolytic cell is a core device of an electrolytic aluminum workshop, an open slot is arranged in the middle of the upper structure of the electrolytic cell, and the internal temperature of the open slot of the electrolytic cell reaches 60-80 ℃ in the operation process of the electrolytic cell. After the electrolytic bath is operated for a long time, a lot of alumina powder is accumulated in the open slot, the accumulated alumina powder not only seriously wastes electrolytic raw materials, but also influences the normal operation of the electrolytic bath, and the alumina powder is extremely difficult to clean manually, so that a corresponding alumina powder recovery device is needed.
Chinese patent CN108754538A discloses an alumina powder absorbing and recovering device for an aluminum electrolytic cell, which comprises a frame provided with a recovering cavity, wherein a bulge is formed on the side wall of the upper part of the recovering cavity to form a horizontally extending negative pressure cavity, the negative pressure of the negative pressure cavity is provided by an ejector pump formed by a negative pressure pipe and a high pressure pipe, and a filter is arranged between the negative pressure cavity and the recovering cavity. The recovery chamber is connected with an armored wire hose which is used for extending into an open slot at the upper part of the electrolytic cell, and the connection position of the armored wire hose and the recovery chamber is positioned at the lower side of the air filter.
When the air-filtering type aluminum oxide powder recovery device is used, the upper end of the armored steel wire hose extends into an upper open slot of an electrolytic tank, a large amount of aluminum oxide powder enters a recovery cavity along with air flow under the action of negative pressure, wherein the aluminum oxide powder with larger mass falls into a conical structure at the lower end of the recovery cavity under the action of gravity, the aluminum oxide powder with smaller mass rises along with the air flow, the air flow passes through the filter bag to enter the negative pressure cavity, and finally the aluminum oxide powder with smaller mass is discharged into an exhaust silencer through a negative pressure pipe and a right end connector of a T-shaped three-way pipe and is intercepted by.
The existing alumina powder recovery device has the following problems: after the alumina powder is sucked into the recovery chamber, under the action of negative pressure, alumina with smaller mass rises along with air flow and contacts with the empty filter bag and is intercepted by the filter bag, the flow velocity of the alumina with smaller mass is still higher, the impact erosion on the filter bag is larger, the service life of the filter bag is limited, and meanwhile, under high flow velocity, the filtering effect of the filter bag cannot reach the best.
Disclosure of Invention
An object of the utility model is to provide an aluminium cell aluminium oxide recovery unit to when solving prior art and collecting aluminium oxide, the less aluminium oxide powder of quality erodees the more serious technical problem of filter equipment because of the velocity of flow is too high.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
the aluminum cell alumina powder recovery device comprises a dust collecting cylinder connected with a negative pressure generating device, and a dust inlet is arranged on the dust collecting cylinder, and is characterized in that: the dust collecting device comprises a dust collecting barrel, a dust inlet, a dust collecting hopper, a powder passing hole, a powder collecting cavity, a flying material outlet, a filtering bin, a filtering device and an exhaust port, wherein the dust collecting hopper is arranged on the lower side of the dust inlet in the dust collecting barrel, the upper part of the dust collecting hopper is large, the lower part of the dust collecting hopper is provided with the powder passing hole for the aluminum oxide powder to pass through, the lower side of the dust collecting hopper in the dust collecting barrel is a powder collecting cavity, the side wall of the dust collecting barrel is provided with the flying material outlet, the.
The bottom of the dust collecting cylinder is provided with an ash discharging opening communicated with the powder collecting cavity.
The height of the flying material outlet is not lower than that of the powder passing opening.
The aluminum electrolysis cell alumina powder recovery device also comprises a trolley with traveling wheels, and the dust collecting cylinder and the filter bin are arranged on the trolley.
The walking wheel is an insulating wheel, and an insulating pad is arranged between the dust collecting cylinder, the filter bin and the cart.
The dust inlet is positioned at the top of the dust collecting barrel.
The negative pressure generating device is an ejector pump.
The utility model has the advantages that: during the use, the negative pressure produces the inside negative pressure that produces of device makes a section of thick bamboo that gathers dust, under the negative pressure effect, the aluminium oxide powder of the open slot department of aluminium cell gets into a section of thick bamboo that gathers dust through advancing the dirt mouth, then through the hopper that gathers dust, aluminium oxide powder gets into the powder collection chamber behind the powder passing through the mouth, heavier aluminium oxide powder receives self gravity and falls to be collected in the powder collection chamber, lighter aluminium oxide powder can be raised, thereby get into the filtration storehouse through flying upward the material export, lighter aluminium oxide powder is collected by the filter equipment in the filtration storehouse, the utility model discloses in, the reason that lighter aluminium oxide powder got into the filtration storehouse is because light in weight of itself forms the raise dust, and its speed compares the speed of negative pressure pumping and send among the prior art and reduces greatly, therefore its washing away less to filter equipment, aluminium oxide powder is also adsorbed on filter equipment more easily.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
An embodiment of an alumina recovery device of an aluminum electrolysis cell is shown in FIG. 1: the dust collection device comprises a trolley 14 with a travelling wheel 1, wherein the travelling wheel 1 is an insulating wheel, an insulating pad 2 is arranged on the trolley, a filter bin 3 and a dust collection barrel 13 which are arranged in the front and at the back are arranged on the insulating pad, and the filter bin 3 is fixed on the barrel wall of the front side of the dust collection barrel 13. The top of a dust collection barrel is provided with a negative pressure generating device, the negative pressure generating device in the embodiment is an ejector pump 8, the ejector pump 8 comprises a compressed air inlet 10 and a compressed air outlet 9, compressed air enters the ejector pump through the compressed air inlet and is discharged through the compressed air outlet, so that a negative pressure area communicated with an inner cavity of the dust collection barrel is formed in the ejector pump, the ejector pump belongs to the prior art, the structure of the ejector pump is not described in detail, a dust inlet 11 is formed in the dust collection barrel, and a dust collection hose (not shown in the figure) is connected to the dust inlet 11. A dust collecting hopper 12 with a big top and a small bottom is arranged at the lower side of the dust inlet in the dust collecting barrel, the lower end of the dust collecting hopper is provided with a powder passing hole 17 for the alumina powder to pass through, a powder collecting cavity 15 is arranged at the lower side of the dust collecting hopper in the dust collecting barrel, and the bottom of the dust collecting barrel is provided with an ash discharging hole 16 communicated with the powder collecting cavity.
The side wall of the dust collection barrel is provided with a flying material outlet 7 which is communicated with the dust collection barrel and the filter bin, and in the embodiment, the height of the flying material outlet 7 is consistent with that of the powder through opening. The filtering bin is provided with an exhaust port 5, a filtering device is arranged at the exhaust port in the filtering bin, and the filtering device in the embodiment comprises a primary bag type dust collector 6 and a secondary bag type dust collector 4 which are sequentially arranged.
When the dust collection device is used, a dust collection hose connected with a dust inlet is placed at an open slot at the upper part of an aluminum electrolysis cell, the ejector pump 8 is started to enable the interior of a dust collection cylinder to form negative pressure so as to suck alumina powder, the alumina powder at the open slot enters a dust collection box 13 through a dust inlet 11 and is collected by a dust collection hopper 17, the dust collection hopper can also play a role in blocking the airflow velocity of the alumina powder, the alumina powder falls into a powder collection cavity 15 through a powder passing port of the dust collection hopper, the alumina powder with larger mass is directly deposited in the powder collection cavity, and when a certain amount of deposition is carried out, ash removal is carried out through an ash discharge port; the alumina powder with lighter weight forms raise dust, enters the filtering bin through the raising material outlet 7, and is filtered by the filtering device, and clean air is discharged through the exhaust port. The utility model discloses in, lighter alumina powder enters into the filtration storehouse with the raise dust gesture, and its fluid speed is slower, and is less to filter equipment's impact erodees, also is filtered by filter equipment more easily simultaneously. In other embodiments of the present invention: the height of the flying material outlet can be higher or lower than that of the powder passing port; the filter device may also only adopt a first-stage bag-type dust collector, and of course, the filter device may also not use a bag-type dust collector, for example, the filter device is a cyclone dust collector; the negative pressure generating means may also be a vacuum pump.
Claims (7)
1. The aluminum cell alumina powder recovery device comprises a dust collecting cylinder connected with a negative pressure generating device, and a dust inlet is arranged on the dust collecting cylinder, and is characterized in that: the dust collecting device comprises a dust collecting barrel, a dust inlet, a dust collecting hopper, a powder passing hole, a powder collecting cavity, a flying material outlet, a filtering bin, a filtering device and an exhaust port, wherein the dust collecting hopper is arranged on the lower side of the dust inlet in the dust collecting barrel, the upper part of the dust collecting hopper is large, the lower part of the dust collecting hopper is provided with the powder passing hole for the aluminum oxide powder to pass through, the lower side of the dust collecting hopper in the dust collecting barrel is a powder collecting cavity, the side wall of the dust collecting barrel is provided with the flying material outlet, the.
2. The aluminum reduction cell alumina powder recovery device of claim 1, wherein: the bottom of the dust collecting cylinder is provided with an ash discharging opening communicated with the powder collecting cavity.
3. The aluminum reduction cell alumina powder recovery device of claim 1, wherein: the height of the flying material outlet is not lower than that of the powder passing opening.
4. The aluminum reduction cell alumina powder recovery device of claim 1, wherein: the aluminum electrolysis cell alumina powder recovery device also comprises a trolley with traveling wheels, and the dust collecting cylinder and the filter bin are arranged on the trolley.
5. The aluminum reduction cell alumina powder recovery device of claim 4, wherein: the walking wheel is an insulating wheel, and an insulating pad is arranged between the dust collecting cylinder, the filter bin and the cart.
6. The aluminum electrolysis cell alumina powder recovery device according to any one of claims 1 to 5, characterized in that: the dust inlet is positioned at the top of the dust collecting barrel.
7. The aluminum reduction cell alumina powder recovery device of claim 6, wherein: the negative pressure generating device is an ejector pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921314445.1U CN210420203U (en) | 2019-08-14 | 2019-08-14 | Aluminum oxide powder recovery device for aluminum electrolysis cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921314445.1U CN210420203U (en) | 2019-08-14 | 2019-08-14 | Aluminum oxide powder recovery device for aluminum electrolysis cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210420203U true CN210420203U (en) | 2020-04-28 |
Family
ID=70362221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921314445.1U Active CN210420203U (en) | 2019-08-14 | 2019-08-14 | Aluminum oxide powder recovery device for aluminum electrolysis cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210420203U (en) |
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2019
- 2019-08-14 CN CN201921314445.1U patent/CN210420203U/en active Active
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