CN110894614A - Device for preheating and conveying aluminum oxide by forced ventilation of electrolytic cell - Google Patents
Device for preheating and conveying aluminum oxide by forced ventilation of electrolytic cell Download PDFInfo
- Publication number
- CN110894614A CN110894614A CN201811065995.4A CN201811065995A CN110894614A CN 110894614 A CN110894614 A CN 110894614A CN 201811065995 A CN201811065995 A CN 201811065995A CN 110894614 A CN110894614 A CN 110894614A
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- CN
- China
- Prior art keywords
- electrolytic cell
- alumina
- air supply
- forced ventilation
- preheating
- 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.)
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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
-
- 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
- C25C3/22—Collecting emitted gases
Abstract
The invention relates to an electrolytic cell, in particular to a device for preheating and conveying alumina by utilizing forced ventilation of the electrolytic cell, which comprises the electrolytic cell, wherein a forced ventilation box is arranged at the periphery of the electrolytic cell. The invention has the advantages and effects that: the high-temperature gas which is forced to ventilate the electrolytic bath is utilized to preheat and convey the aluminum oxide, so that the heat absorbed by the aluminum oxide in the process of dissolving the electrolyte solution is reduced, the interference to the thermal balance of the electrolytic bath is further reduced, the thermal balance stability of the electrolytic bath is improved, and the workshop operating environment can be effectively improved.
Description
Technical Field
The invention relates to an electrolytic cell, in particular to a device for preheating and conveying alumina by forced ventilation of the electrolytic cell, which preheats and conveys the alumina by high-temperature gas forced ventilation of the electrolytic cell.
Background
The lower part of the traditional electrolytic cell has larger heat dissipated into a workshop, which not only causes huge waste of energy, but also worsens the operation environment in the workshop. In the aluminum electrolysis production process, cold aluminum oxide as a raw material needs to be added into high-temperature electrolyte solution at regular time, a large amount of heat needs to be absorbed, the interference on the heat balance near the blanking point is large, the temperature of local electrolyte solution is easy to reduce, the superheat degree is reduced, the aluminum oxide cannot be dissolved sufficiently in time, the aluminum oxide sinks into the surface of a cathode to become precipitate, and then the phenomena of increase of the precipitation of an electrolytic cell and the like are easy to cause.
Disclosure of Invention
In order to solve the technical problems, the invention provides a device for preheating and conveying aluminum oxide by forced ventilation of an electrolytic cell, and aims to preheat and convey the aluminum oxide by utilizing high-temperature gas of the forced ventilation of the electrolytic cell, so that the heat absorbed by the aluminum oxide in the process of dissolving electrolyte solution is reduced, the interference on the thermal balance of the electrolytic cell is further reduced, the stability of the thermal balance of the electrolytic cell is improved, and the operating environment of a workshop can be effectively improved.
The device for preheating and conveying alumina by forced ventilation of the electrolytic cell comprises the electrolytic cell, wherein a forced ventilation box is arranged at the periphery of the electrolytic cell, an air supply pipe is arranged on the forced ventilation box and is connected with an air supply machine, an air exhaust pipe is arranged on the forced ventilation box and is connected with an exhaust fan, the exhaust fan is conveyed to an alumina preheating conveying chute through a pipeline, and a feed opening of the alumina preheating conveying chute is communicated with the electrolytic cell.
And an air supply control valve is arranged between the air supply pipe and the air supply machine.
And an air supply pipe is arranged between the exhaust fan and the alumina preheating conveying chute.
And an air supply branch pipe is arranged between the air supply pipe and the alumina preheating conveying chute.
And the air supply branch pipe is provided with an air supply regulating valve.
The forced ventilation box is arranged at the periphery of the lower part of the electrolytic bath.
The air supply branch pipe is connected with an alumina preheating conveying chute connector.
The invention has the advantages and effects that: the high-temperature gas which is forced to ventilate the electrolytic bath is utilized to preheat and convey the aluminum oxide, so that the heat absorbed by the aluminum oxide in the process of dissolving the electrolyte solution is reduced, the interference to the thermal balance of the electrolytic bath is further reduced, the thermal balance stability of the electrolytic bath is improved, and the workshop operating environment can be effectively improved.
Drawings
Fig. 1 is a schematic view of the construction of a forced air system of the present invention.
Fig. 2 is a schematic piping diagram of the forced air supply system of the present invention.
FIG. 3 is a schematic view of the forced draft system piping of the present invention.
FIG. 4 is a schematic diagram of the alumina preheating conveying system of the present invention.
In the figure: 1. an electrolytic cell; 2. a forced ventilation box; 3. an air supply pipe; 4. an air supply control valve; 5. a blower; 6. an exhaust pipe; 7. an exhaust fan; 8. an air supply pipe; 9. a supply air regulating valve; 10. a wind supply branch pipe; 11. the alumina preheats the conveying chute.
Detailed Description
The invention is further described with reference to the accompanying drawings, but the scope of the invention is not limited by the embodiments.
As shown in the figure, the device for preheating and conveying alumina by forced ventilation of the electrolytic cell comprises the electrolytic cell 1, wherein a forced ventilation box 2 is arranged on the periphery of the electrolytic cell 1, an air supply pipe 3 is arranged on the forced ventilation box 2, the air supply pipe 3 is connected with an air feeder 5, an air exhaust pipe 6 is arranged on the forced ventilation box 2, the air exhaust pipe 6 is connected with an exhaust fan 7, the exhaust fan 7 is sent to an alumina preheating conveying chute 11 through a pipeline, and a feed opening of the alumina preheating conveying chute 11 is communicated with the electrolytic cell 1.
An air supply control valve 4 is arranged between the air supply pipe 3 and the air supply device 5.
An air supply pipe 8 is arranged between the exhaust fan 6 and the alumina preheating conveying chute 11, an air supply branch pipe 10 is arranged between the air supply pipe 8 and the alumina preheating conveying chute 11, and an air supply regulating valve 9 is arranged on the air supply branch pipe 10.
The forced ventilation box 2 is arranged at the periphery of the lower part of the electrolytic bath 1.
The air supply branch pipe 10 is connected with an interface of an alumina preheating conveying chute 11.
Claims (7)
1. The device for preheating and conveying the alumina by forced ventilation of the electrolytic cell comprises the electrolytic cell, wherein a forced ventilation box is arranged at the periphery of the electrolytic cell, and is characterized in that an air supply pipe is arranged on the forced ventilation box and is connected with an air feeder, an air exhaust pipe is arranged on the forced ventilation box and is connected with an exhaust fan, the exhaust fan is conveyed to an alumina preheating conveying chute through a pipeline, and a feed opening of the alumina preheating conveying chute is communicated with the electrolytic cell.
2. The apparatus for the forced draft preheating and alumina delivery of an electrolytic cell of claim 1 wherein a draft control valve is provided between the draft tube and the blower.
3. An apparatus for pre-heating and transporting alumina by forced draft of an electrolytic cell according to claim 1, wherein an air supply duct is provided between the exhaust fan and the alumina pre-heating transport chute.
4. An apparatus for pre-heating and transporting alumina through forced draft of an electrolytic cell as claimed in claim 3 wherein a branch air supply duct is provided between the air supply duct and the alumina pre-heating transport chute.
5. An apparatus for pre-heating and transporting alumina through forced ventilation of an electrolytic cell as claimed in claim 3, wherein the air supply branch pipe is provided with an air supply regulating valve.
6. An apparatus for pre-heating and transporting alumina by forced ventilation of an electrolytic cell according to claim 1, wherein the forced ventilation box is provided at a lower periphery of the electrolytic cell.
7. An apparatus for pre-heating and conveying alumina by forced draft in an electrolytic cell according to claim 3, wherein the air supply branch pipe is connected to the alumina pre-heating conveying chute interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811065995.4A CN110894614A (en) | 2018-09-13 | 2018-09-13 | Device for preheating and conveying aluminum oxide by forced ventilation of electrolytic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811065995.4A CN110894614A (en) | 2018-09-13 | 2018-09-13 | Device for preheating and conveying aluminum oxide by forced ventilation of electrolytic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110894614A true CN110894614A (en) | 2020-03-20 |
Family
ID=69785023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811065995.4A Pending CN110894614A (en) | 2018-09-13 | 2018-09-13 | Device for preheating and conveying aluminum oxide by forced ventilation of electrolytic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110894614A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122883A (en) * | 2021-03-18 | 2021-07-16 | 沈阳铝镁设计研究院有限公司 | Preheating method for aluminum oxide on upper part of aluminum electrolytic cell |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1583471A1 (en) * | 1987-09-29 | 1990-08-07 | Братский алюминиевый завод | Aluminium electrolyzer |
| CN102134727A (en) * | 2011-03-10 | 2011-07-27 | 伊川龙海科技实业有限公司 | Method for recycling waste heat of electrolytic cell and device thereof |
| CN102154663A (en) * | 2011-03-10 | 2011-08-17 | 伊川龙海科技实业有限公司 | Method for preheating alumina by using smoke afterheat from aluminium electrolysis production |
| CN202543348U (en) * | 2012-02-03 | 2012-11-21 | 湖南晟通科技集团有限公司 | Conveying device for aluminum electrolytic raw material |
| CN105220177A (en) * | 2014-06-30 | 2016-01-06 | 沈阳铝镁设计研究院有限公司 | Aluminium cell forced ventilation residual heat using device and Application way |
-
2018
- 2018-09-13 CN CN201811065995.4A patent/CN110894614A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1583471A1 (en) * | 1987-09-29 | 1990-08-07 | Братский алюминиевый завод | Aluminium electrolyzer |
| CN102134727A (en) * | 2011-03-10 | 2011-07-27 | 伊川龙海科技实业有限公司 | Method for recycling waste heat of electrolytic cell and device thereof |
| CN102154663A (en) * | 2011-03-10 | 2011-08-17 | 伊川龙海科技实业有限公司 | Method for preheating alumina by using smoke afterheat from aluminium electrolysis production |
| CN202543348U (en) * | 2012-02-03 | 2012-11-21 | 湖南晟通科技集团有限公司 | Conveying device for aluminum electrolytic raw material |
| CN105220177A (en) * | 2014-06-30 | 2016-01-06 | 沈阳铝镁设计研究院有限公司 | Aluminium cell forced ventilation residual heat using device and Application way |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122883A (en) * | 2021-03-18 | 2021-07-16 | 沈阳铝镁设计研究院有限公司 | Preheating method for aluminum oxide on upper part of aluminum electrolytic cell |
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200320 |
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| WD01 | Invention patent application deemed withdrawn after publication |