CN211112263U - Electrolytic bath gas-collecting device - Google Patents
Electrolytic bath gas-collecting device Download PDFInfo
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- CN211112263U CN211112263U CN201922328727.3U CN201922328727U CN211112263U CN 211112263 U CN211112263 U CN 211112263U CN 201922328727 U CN201922328727 U CN 201922328727U CN 211112263 U CN211112263 U CN 211112263U
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- Prior art keywords
- flue
- horizontal
- main flue
- horizontal auxiliary
- communicated
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- 239000007789 gas Substances 0.000 claims abstract description 42
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003546 flue gas Substances 0.000 claims abstract description 35
- 238000005868 electrolysis reaction Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- 239000000779 smoke Substances 0.000 description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 238000000746 purification Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 206010022000 influenza Diseases 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Electrolytic Production Of Metals (AREA)
Abstract
The utility model belongs to the technical field of electrolytic aluminum gas collection devices, in particular to an electrolytic bath gas collection device, which comprises an electrolytic bath shell, a horizontal auxiliary flue, a main flue and a drainage tube, wherein a groove cover plate is fixed above the electrolytic bath shell, the horizontal auxiliary flue is fixedly connected with the groove cover plate, and the horizontal auxiliary flue is provided with an exhaust hole; the upper part in the horizontal auxiliary flue is fixed with an A-direction horizontal main flue and a B-direction horizontal main flue, two sides of the lower part of the horizontal auxiliary flue are respectively provided with an A-direction gas collecting port and a B-direction gas collecting port, the A-direction horizontal main flue is communicated with the A-direction gas collecting port through the A-direction vertical horizontal auxiliary flue, and the B-direction horizontal main flue is communicated with the B-direction gas collecting port through the B-direction vertical horizontal auxiliary flue; the A-direction horizontal main flue and the B-direction horizontal main flue are both communicated with a drainage tube, and the flow velocity of flue gas is accelerated by utilizing compressed air flowing through the drainage tube; the horizontal auxiliary flue, the A-direction horizontal main flue and the B-direction horizontal main flue are communicated with the main flue. Effectively solves the problem of negative pressure balance in the tank cover and obtains higher air collection amount.
Description
Technical Field
The utility model belongs to the technical field of electrolytic aluminum gas collection device, concretely relates to electrolysis trough gas collection device.
Background
In the electrolytic production process, a large amount of harmful smoke is generated, and the smoke seriously influences the health of workers and the air quality of workshops. The electrolysis production system is provided with a special flue gas capture and purification system, collects the harmful gases and conveys the gases to the purification system for purification treatment.
The prior electrolytic cell smoke exhaust system (purification system) is a smoke exhaust system with exhaust holes with different sizes from an aluminum outlet end to a flue end under a horizontal cover plate of an electrolytic cell, and the section of a smoke exhaust system pipeline is in a shape of a square upper part and a conical lower part.
Because the whole length of electrolysis trough reaches 13 meters, only the regional smoke exhaust effect of department of flame hole that is close to the flue is better relatively, is close to the aluminium end flame hole region more, because the flame hole is far away from the flue distance of breathing in, the negative pressure is lower relatively and causes the smoke exhaust effect not good, and the flue gas must be forced into the flue through the negative pressure moreover, and partial flue gas is difficult to be taken away for the staff leaks much when opening the cover plate operation flue gas, has caused whole smoke exhaust effect not good, and the flue gas leaks more.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides an electrolysis trough gas collecting device, this gas collecting device can improve gas collection efficiency and smoke exhaust effect.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a gas collecting device of an electrolytic cell comprises an electrolytic cell shell, a horizontal auxiliary flue, a main flue and a drainage tube, wherein a groove cover plate is fixed above the electrolytic cell shell, the horizontal auxiliary flue is fixedly connected with the groove cover plate, and the horizontal auxiliary flue is provided with an exhaust hole; the upper part in the horizontal auxiliary flue is fixed with an A-direction horizontal main flue and a B-direction horizontal main flue, two sides of the lower part of the horizontal auxiliary flue are respectively provided with an A-direction gas collecting port and a B-direction gas collecting port, the A-direction horizontal main flue is communicated with the A-direction gas collecting port through the A-direction vertical horizontal auxiliary flue, and the B-direction horizontal main flue is communicated with the B-direction gas collecting port through the B-direction vertical horizontal auxiliary flue; the A-direction horizontal main flue and the B-direction horizontal main flue are both communicated with a drainage tube, and the flow velocity of flue gas is accelerated by utilizing compressed air flowing through the drainage tube; the horizontal auxiliary flue, the A-direction horizontal main flue and the B-direction horizontal main flue are communicated with the main flue.
The lower part of the horizontal auxiliary flue is communicated with a material collector.
The material collector is in a square barrel shape.
The drainage tube is communicated with the crust breaking cylinder, and compressed air discharged by the crust breaking cylinder flows through the drainage tube.
Compared with the prior art, the utility model, the beneficial effect who has is:
the device has the advantages of high gas collection efficiency and good smoke discharge effect, and adopts a bidirectional efficient gas collection mode that flue gas naturally upwards and independently collects gas mainly through a fire hole and collects gas secondarily through a horizontal flue. Each regional flue gas of electrolysis trough discharges evenly, upwards circulates naturally through the flue gas and the form of negative pressure concentrated suction is put for the even smooth emission of each position combustion gas of electrolysis trough, and the electrolysis trough smoke exhaust effect after the transformation is obviously less than original electrolysis trough smoke exhaust system flue gas, and flue gas exhaust speed is fast, opens the groove cover board during operation flue gas and leaks gas and obviously reduce than original gas collection system gas, and the electrolysis trough unorganized emission flue gas reduces, and the electrolysis shop environment obtains obviously improving.
Meanwhile, the rectangular material collector is added to the discharging opening, so that flying of alumina in the discharging process is reduced, the material accumulation of fresh alumina in a middle seam area is reduced, the alumina adsorbed by a flue gas purification system in the discharging process is greatly reduced, and the melting amount of the alumina entering a fire hole is increased.
The gas collection device improves the discharge amount of the smoke in the closed cover of the aluminum electrolysis cell, effectively solves the problem of negative pressure balance in the cell cover, and the test cell obtains higher gas collection amount under the condition of lower negative pressure. The method not only improves the gas collection efficiency, reduces the carrying amount of the alumina along with the smoke exhaust system in the blanking process, but also is beneficial to reducing the energy consumption of the purification system. The field test is carried out, and the test results are compared in detail. In an actual measurement groove, the flue gas temperature in the experimental groove is obviously lower than that in the comparison groove, and the lower flue gas temperature is favorable for improving the flue gas purification efficiency and prolonging the service life of a cloth bag of the dust remover. And the flue gas trapping amount of the test tank is obviously larger than that of the comparison tank, so that the flue gas purification trapping efficiency is improved.
Compressed air (03.5-0.45 MP) exhausted by the crust breaking cylinder in the drainage tube enters the main flue in the negative pressure direction of flue gas to push the flue gas to flow out, so that the exhaust amount of the flue gas in unit time is accelerated, the smoke exhaust effect is obviously improved, huge noise caused by the exhaust gas of the crust breaking cylinder is eliminated, and the working environment of a workshop is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is an exploded view of the present invention;
FIG. 3 is an isometric view of the horizontal auxiliary flue of the present invention;
FIG. 4 is a schematic view of the whole half-section of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a schematic structural view of the horizontal auxiliary flue of the present invention;
FIG. 7 is a cross-sectional view taken along line A-A of FIG. 6;
wherein: 1 is a cell cover plate, 2 is an electrolytic cell shell, 3 is a main flue, 4 is an exhaust hole, 51 is an A-direction vertical horizontal auxiliary flue, 52 is an A-direction horizontal main flue, 53 is a horizontal auxiliary flue, 54 is a B-direction horizontal main flue, 55 is a B-direction vertical horizontal auxiliary flue, 56 is a material collector, 57 is an A-direction gas collecting port, 58 is a B-direction gas collecting port, and 59 is a drainage tube.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figures 1 to 7, the gas collecting device of the electrolytic cell comprises an electrolytic cell shell 2, a horizontal auxiliary flue 53, a main flue 3 and a drainage tube 59, wherein a cell cover plate 1 is fixed above the electrolytic cell shell 2, the horizontal auxiliary flue 53 is fixedly connected with the cell cover plate 1, and the horizontal auxiliary flue 53 is provided with an exhaust hole 4.
The upper part in the horizontal auxiliary flue 53 is fixed with an A-direction horizontal main flue 52 and a B-direction horizontal main flue 54, two sides of the lower part of the horizontal auxiliary flue 53 are respectively provided with an A-direction gas collecting port 57 and a B-direction gas collecting port 58, the A-direction horizontal main flue 52 is communicated with the A-direction gas collecting port 57 through the A-direction vertical horizontal auxiliary flue 51, and the B-direction horizontal main flue 54 is communicated with the B-direction gas collecting port 58 through the B-direction vertical horizontal auxiliary flue 55.
The A-direction horizontal main flue 52 and the B-direction horizontal main flue 54 are both communicated with a drainage pipe 59, and the flow rate of flue gas is accelerated by utilizing compressed air flowing through the drainage pipe 59; the horizontal auxiliary flues 53, the A-direction horizontal main flues 52 and the B-direction horizontal main flues 54 are all communicated with the main flue 3.
The specific connection mode of each part is as follows: the A-direction horizontal main flue 52 and the B-direction horizontal main flue 54 are respectively and directly welded on the upper part of the horizontal auxiliary flue 53 in a welding mode; the upper parts of the A-direction vertical horizontal auxiliary flue 51 and the B-direction vertical horizontal auxiliary flue 55 are vertically connected with the A-direction horizontal main flue 52 and the B-direction horizontal main flue 54 in a welding mode, and the lower parts are directly connected with the horizontal auxiliary flue 53 in a welding mode.
Most of the flue gas of the aluminum electrolytic cell is discharged through the fire hole, so most of the flue gas directly flows into the vertical horizontal auxiliary flue 51 from A to the vertical horizontal auxiliary flue 55 from A to the gas collecting port 57 from A to the gas collecting port 58 from B after being discharged from the fire hole, directly flows into the horizontal main flue 52 from A due to the negative pressure, and directly enters the main flue 3 from B to the horizontal main flue 54; the remaining part is discharged directly into the main flue 3 through the horizontal auxiliary flue 53.
A gas-collecting discharge port (A to the gas-collecting port 57 and B to the gas-collecting port 58) is added under the horizontal auxiliary flue 53, so that the flue gas can be effectively ensured to smoothly enter the horizontal auxiliary flue 53; meanwhile, the accumulation of alumina brought by the smoke sucked into the horizontal auxiliary flue 53 is ensured, and the alumina deposited in the horizontal auxiliary flue 53 directly flows into the electrolytic bath due to the dead weight drop.
For the communication between the horizontal auxiliary flues 53, the a-direction horizontal main flues 52 and the B-direction horizontal main flues 54 and the main flue 3, the skilled person can realize this in many ways, preferably with the following structure: corresponding through holes are respectively arranged on the A-direction horizontal main flue 52 and the B-direction horizontal main flue 54, the horizontal auxiliary flue 53 is of an upper open structure, and the upper part of the horizontal auxiliary flue 53 is blocked by the groove cover plate 1; the main flue 3 is fixed on the tank cover plate 1, and the tank cover plate 1 is provided with corresponding openings, so that the flue gas which is opened at the upper part of the horizontal auxiliary flue 53 and is discharged from the through holes of the horizontal main flue 52A and the horizontal main flue 54B can enter the main flue 3 through the openings.
The lower part of the horizontal auxiliary flue 53 is communicated with a material collector 56. The specific connection mode is as follows: the collector 56 is vertically welded on the horizontal auxiliary flue 53 right above the fire hole by welding. By adding the material collector 56, the flying of the alumina in the blanking process is reduced, meanwhile, the material accumulation of fresh alumina in a middle seam area is reduced, the alumina adsorbed away by a flue gas purification system in the blanking process is greatly reduced, and the melting-in amount of the alumina entering a fire hole is increased. The result shows that the novel smoke exhaust system improves the discharge amount of smoke in the closed cover of the aluminum electrolytic cell, effectively solves the problem of negative pressure balance in the cell cover, and the test cell obtains higher air collection amount under the condition of lower negative pressure. The method not only improves the gas collection efficiency, reduces the carrying amount of the alumina along with the smoke exhaust system in the blanking process, but also is beneficial to reducing the energy consumption of the purification system. The field test is carried out, and the test results are compared in detail. In an actual measurement groove, the flue gas temperature in the experimental groove is obviously lower than that in the comparison groove, and the lower flue gas temperature is favorable for improving the flue gas purification efficiency and prolonging the service life of a cloth bag of the dust remover. And the flue gas trapping amount of the test tank is obviously larger than that of the comparison tank, so that the flue gas purification trapping efficiency is improved.
Further, the collector 56 is shaped as a square cylinder.
The drain tube 59 may be in communication with an external source of air, preferably in communication with a crust breaking cylinder, the compressed air discharged from the crust breaking cylinder flowing through the drain tube 59.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (4)
1. The utility model provides an electrolysis trough gas-collecting device which characterized in that: the device comprises an electrolytic cell shell (2), a horizontal auxiliary flue (53), a main flue (3) and a drainage tube (59), wherein a groove cover plate (1) is fixed above the electrolytic cell shell (2), the horizontal auxiliary flue (53) is fixedly connected with the groove cover plate (1), and an exhaust hole (4) is arranged on the horizontal auxiliary flue (53); a direction horizontal main flue (52) and a direction B horizontal main flue (54) are fixed at the upper part in the horizontal auxiliary flue (53), two sides of the lower part of the horizontal auxiliary flue (53) are respectively provided with a direction A air collecting port (57) and a direction B air collecting port (58), the direction A horizontal main flue (52) is communicated with the direction A air collecting port (57) through the direction A vertical horizontal auxiliary flue (51), and the direction B horizontal main flue (54) is communicated with the direction B air collecting port (58) through the direction B vertical horizontal auxiliary flue (55); the A-direction horizontal main flue (52) and the B-direction horizontal main flue (54) are both communicated with a drainage pipe (59), and the flow velocity of flue gas is accelerated by utilizing compressed air flowing through the drainage pipe (59); the horizontal auxiliary flue (53), the A-direction horizontal main flue (52) and the B-direction horizontal main flue (54) are communicated with the main flue (3).
2. An electrolysis cell gas collection apparatus according to claim 1, wherein: the lower part of the horizontal auxiliary flue (53) is communicated with a material collector (56).
3. An electrolysis cell gas collection apparatus according to claim 2, wherein: the material collector (56) is in a square cylinder shape.
4. An electrolysis cell gas collection apparatus according to claim 1, wherein: the drainage tube (59) is communicated with the crust breaking cylinder, and compressed air exhausted by the crust breaking cylinder flows through the drainage tube (59).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922328727.3U CN211112263U (en) | 2019-12-23 | 2019-12-23 | Electrolytic bath gas-collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922328727.3U CN211112263U (en) | 2019-12-23 | 2019-12-23 | Electrolytic bath gas-collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211112263U true CN211112263U (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922328727.3U Expired - Fee Related CN211112263U (en) | 2019-12-23 | 2019-12-23 | Electrolytic bath gas-collecting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN211112263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990593A (en) * | 2022-06-15 | 2022-09-02 | 惠民县汇宏新材料有限公司 | Device for preventing corner of electrolytic cell from extremely long angle |
-
2019
- 2019-12-23 CN CN201922328727.3U patent/CN211112263U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114990593A (en) * | 2022-06-15 | 2022-09-02 | 惠民县汇宏新材料有限公司 | Device for preventing corner of electrolytic cell from extremely long angle |
| CN114990593B (en) * | 2022-06-15 | 2023-08-29 | 惠民县汇宏新材料有限公司 | Device for preventing extremely long angle at corner of electrolytic tank |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200728 |