CN219083065U - Electrolyte melting type burner for roasting aluminum electrolysis cell and electrolytic cell starting mechanism - Google Patents
Electrolyte melting type burner for roasting aluminum electrolysis cell and electrolytic cell starting mechanism Download PDFInfo
- Publication number
- CN219083065U CN219083065U CN202222965857.XU CN202222965857U CN219083065U CN 219083065 U CN219083065 U CN 219083065U CN 202222965857 U CN202222965857 U CN 202222965857U CN 219083065 U CN219083065 U CN 219083065U
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- electrolyte
- combustion
- aluminum electrolysis
- electrolysis cell
- 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.)
- Active
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 63
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 36
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000002844 melting Methods 0.000 title claims abstract description 25
- 230000008018 melting Effects 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 title claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 75
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 239000000779 smoke Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000002737 fuel gas Substances 0.000 claims abstract description 9
- 239000000567 combustion gas Substances 0.000 claims abstract description 3
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 21
- 241000276425 Xiphophorus maculatus Species 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
The utility model provides an electrolyte melting type burner for roasting an aluminum electrolysis cell and an electrolysis cell starting mechanism, which comprise a combustion chamber, a fuel gas inlet, an air inlet, a flame detection electrode and an ignition electrode, wherein the combustion chamber is provided with a fuel gas inlet; the shell of the combustion chamber is made of high-temperature resistant heat conducting material, combustion channels are distributed in the combustion chamber, and a smoke exhaust pipeline is arranged at the upper part of the combustion chamber; the fuel gas inlet and the air inlet are communicated with the combustion channel; the detection end of the flame detection electrode is introduced into the combustion chamber to obtain whether flame exists or not; the ignition end of the ignition electrode is introduced into the combustion chamber to ignite the combustion gas. By heating the combustion chamber, the electrolyte blocks or powder in the electrolytic tank are melted, and meanwhile, the cathode carbon blocks are heated, so that generated flue gas can heat the anode carbon blocks, a traditional external electrolyte acquisition mode is replaced, and the influence on electrolyte production is reduced.
Description
Technical Field
The utility model relates to the technical field of aluminum electrolysis cells, in particular to an electrolyte melting type burner for roasting an aluminum electrolysis cell and an electrolysis cell starting mechanism.
Background
In two starting modes of an aluminum electrolysis cell, gas roasting is an important one.
At present, the method for roasting fuel gas at home and abroad is to put a burner into an electrolytic tank and heat a cathode carbon block and an anode carbon block of the electrolytic tank by high-temperature flue gas. When the temperature rises to a certain degree, the electrolyte in a molten state is extracted from other electrolytic tanks and poured into the electrolytic tank to be started, and the electrolytic tank is started. Starting one cell in this manner requires either two cells to be dedicated to providing molten electrolyte or withdrawing electrolyte from multiple cells being produced for cell start-up.
This is a great production burden on the electrolytic cell in which the electrolyte is provided, and can seriously affect the production stability.
The application number is as follows: CN202022023289.2, the name of which is: in the utility model patent of a low-nitrogen oxide burner for starting a cell of an aluminum electrolysis cell, the high-speed high-temperature flue gas roasting starting generated by the low-nitrogen oxide burner is utilized to replace the traditional coke particle roasting starting mode, but the traditional method still remains in the aspect of electrolyte injection, and the problems exist.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and provides an electrolyte melting type burner for aluminum electrolysis cell roasting, which is used for reducing the pressure of providing molten electrolyte for other electrolysis cells, does not influence the production of the electrolysis cells, saves starting steps and protects cathode carbon blocks, and an electrolysis cell starting mechanism.
The basic design concept of the technical scheme is as follows: the combustor is designed into a structure with a combustion cavity with a certain volume, so that fuel gas is ignited in the combustor, the combustor is heated to a high temperature, then electrolyte powder or blocks are put into the electrolytic tank, and the electrolyte is melted through direct heat conduction, thereby effectively avoiding the introduction of the electrolyte from other electrolytic tanks and simultaneously heating the cathode carbon blocks; the generated flue gas can heat the anode carbon blocks to complete the functions of the traditional burner.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: an electrolyte melting type burner for roasting an aluminum electrolysis cell comprises a combustion chamber, a gas inlet, an air inlet, a flame detection electrode and an ignition electrode;
the shell of the combustion chamber is made of high-temperature resistant heat conducting material, combustion channels are distributed in the combustion chamber, and a smoke exhaust pipeline is arranged at the upper part of the combustion chamber;
the fuel gas inlet and the air inlet are communicated with the combustion channel;
the detection end of the flame detection electrode is introduced into the combustion chamber to obtain whether flame exists or not;
the ignition end of the ignition electrode is introduced into the combustion chamber to ignite the combustion gas.
Based on the above, the combustion chamber is integrally in a plate-shaped cube structure.
The combustion channel is a labyrinth channel or a serpentine channel distributed in the combustion cavity, and the smoke exhaust pipeline is communicated with the combustion channel.
As mentioned above, the number of air inlets and gas inlets is at least one.
Based on the above, the air inlet, the gas inlet, the flame detection electrode and the ignition electrode are all arranged at the top of the combustion chamber.
The flame detection electrode is associated with a gas valve externally connected to the gas inlet, so as to close the gas valve when the flame disappears.
Based on the above, the two ends of the top of the combustion chamber are provided with pin shafts and shaft sleeves which are matched with each other, so that a plurality of combustion chambers are spliced.
The utility model provides an electrolysis trough actuating mechanism, includes electrolysis trough, anode carbon piece and at least one electrolyte melting type combustor for aluminium cell calcination, be used for packing into electrolyte powder or electrolyte piece in the electrolysis trough, anode carbon piece is located the electrolysis trough, electrolyte melting type combustor for aluminium cell calcination hoists in the electrolysis trough, the injection direction of the smoke vent of the combustion chamber of electrolyte melting type combustor for aluminium cell calcination is parallel with the facade of anode carbon piece and towards inside the electrolysis trough.
The electrolytic cell is, as stated above, arranged open in the starting state.
Based on the above, the size of the combustion chamber is matched with the size of the electrolytic tank, and the shape of the combustion chamber is matched with the shape of the gap at the outer side of the anode carbon block.
Compared with the prior art, the utility model has substantial characteristics and progress, and in particular has the following advantages:
1. after the combustion of the fuel is completed in the combustion cavity, the combustor is heated, electrolyte powder or electrolyte blocks stored in the electrolytic tank are melted through heat conduction of the combustor, and the problem that the traditional combustor needs to specially extract molten electrolyte from other electrolytic tanks for starting is solved, so that the influence on production of other electrolytic tanks is greatly reduced.
2. In the starting process of the electrolytic tank, the steps of traditional transferring and pouring molten electrolyte are omitted, so that the time from stopping burning to closing is shortened, the problem of electrolyte cooling in the transferring process is avoided, and the process of starting the electrolytic tank is facilitated to be completed stably as soon as possible.
3. Heating the cathode carbon block by means of the process of heating the electrolyte; and controlling the discharge direction of the high-temperature flue gas generated in the combustion cavity to be parallel to the vertical face of the anode carbon block, so as to heat the anode carbon block.
4. The heating process of the cathode carbon block is to gradually transfer heat energy through the melting process of the electrolyte, so that the scouring action and oxidation of high-temperature flue gas to the cathode carbon block are effectively avoided, the cracking of the cathode carbon block is avoided, and the service life of the cathode carbon block is prolonged.
5. Because no filling process is adopted, the electrolytic tank does not need to use an electrolytic tank cover plate in the starting process, the burner can be directly covered by electrolyte, when the electrolyte is melted and flows into the deep part of the electrolytic tank to cause the height of the electrolyte to be reduced due to the temperature rise of the bottom, new electrolyte blocks or powder are covered until the electrolytic tank is filled with molten electrolyte, at the moment, the electrolytic tank can be directly started, the covering capacity of the electrolyte blocks or powder is fully utilized, and the time is shortened.
Drawings
FIG. 1 is a schematic plan view of an electrolytic melting burner for aluminum electrolysis cell firing according to the present utility model.
FIG. 2 is a schematic perspective view of an electrolyte melting burner for aluminum electrolysis cell firing in accordance with the present utility model.
FIG. 3 is a side view of an electrolyte-melting burner for aluminum electrolysis cell firing in accordance with the present utility model.
FIG. 4 is a schematic view of the structure of the starting mechanism of the electrolytic cell of the present utility model.
In the figure: 1. a flame detection electrode; 2. a gas inlet; 3. an ignition electrode; 4. an air inlet; 5. a combustion chamber; 6. an electrolytic cell; 7. anode carbon blocks; 8. a burner; 9. and (3) cathode carbon blocks.
Detailed Description
The technical scheme of the utility model is further described in detail through the following specific embodiments.
As shown in fig. 1 to 3, an electrolyte melting burner for roasting an aluminum electrolysis cell comprises a combustion chamber 5, a gas inlet 2, an air inlet 4, a flame detection electrode 1 and an ignition electrode 3. The air inlet 4, the gas inlet 2, the flame detection electrode 1 and the ignition electrode 3 are all arranged at the top of the combustion chamber 5.
The shell of combustion chamber 5 is high temperature resistant heat conduction material, such as the high temperature resistant metal alloy of common use, the inside distribution combustion channel of combustion chamber 5, the upper portion of combustion chamber 5 sets up exhaust duct, gas inlet 2 and air inlet 4 all with combustion channel switches on, the detection end of flame detection electrode 1 is introduced in combustion chamber 5 inside in order to obtain whether flame exists, and it can change the signal of flame combustion state into weak current signal, changes into the on-off signal through detecting element to judge whether the flame is extinguished, once the flame is extinguished, need in time control gas valve outside gas inlet 2 to close, in order to avoid appearing deflagration danger.
The ignition end of the ignition electrode 3 is introduced into the combustion chamber, and high voltage is transmitted to the ignition electrode through an ignition transformer, so that electric spark is formed in the gas chamber, and the gas is ignited.
In order to fully utilize the combustion heat energy of the combustion chamber 5, the combustion chamber 5 is of a plate-shaped cube structure, has a larger heat conduction surface area, and combustion channels distributed in the combustion chamber are labyrinth channels or serpentine channels, so that the time for heating the combustion chamber by smoke is fully prolonged, the smoke exhaust pipeline is communicated with the combustion channels and used for exhausting generated high-temperature smoke, and the direction of exhausting heat is parallel to the vertical face of an anode carbon block in the electrolytic tank so as to heat the anode carbon block by using the high-temperature smoke.
In a preferred embodiment, the number of air inlets and gas inlets is at least one, depending on the size of the combustion chamber 5.
The two ends of the top of the combustion chamber 5 are provided with pin shafts and shaft sleeves which are matched with each other, and when the electrolytic tank is large and the size of the combustion chamber 5 is insufficient to cover half of the electrolytic tank, a plurality of combustors are spliced with each other through the pin shafts and the shaft sleeves to form an integral structure.
As shown in fig. 4, in the starting mechanism of the electrolytic cell, a cathode carbon block 9, an anode carbon block 7, an electrolyte block or powder and at least one electrolyte melting burner for roasting the aluminum electrolysis cell are stored in the electrolytic cell, the electrolyte block or the electrolyte powder is filled in the electrolytic cell 6, the anode carbon block 7 is positioned in the electrolytic cell 6, the burner 8 is hoisted in the electrolytic cell 6, the spraying direction of smoke holes of a combustion cavity 5 of the burner 8 is parallel to the vertical face of the anode carbon block and faces the inside of the electrolytic cell, and the electrolytic cell is arranged in an open state in the starting state.
The size of the combustion chamber is matched with the size of the electrolytic tank, and the shape of the combustion chamber is matched with the shape of a gap at the outer side of the anode carbon block so as to fully heat the anode carbon block.
Working principle:
according to the sizes of the electrolytic tank 6 and the burner 8, determining whether the burner needs to be spliced, injecting electrolyte blocks or powder with a certain height into the electrolytic tank 6, hoisting the prepared burner into a gap between the outer side of the anode carbon block 7 and the artificial extending leg in the electrolytic tank 6, and then starting heating before starting, injecting fuel gas and air into the burner and igniting to ensure that the burner is wholly heated.
As the temperature of the burner increases, the electrolyte in the electrolytic tank 6 is heated to become molten, and in the process, the cathode carbon block 9 is easily buried by the molten electrolyte, so that the heating of the cathode carbon block 9 is realized in the process, and at the same time, as the whole height of the electrolyte is reduced, new electrolyte blocks or powder are fed from the outside again, and the fed electrolyte blocks or powder replace the function of the electrolytic tank cover plate.
The high-temperature flue gas generated by the burner is discharged from the smoke exhaust pipeline and is sprayed into the electrolytic tank along the direction parallel to the vertical face of the anode carbon block 7, so that the anode carbon block is heated.
After the electrolyte is completely melted, the heating process of the anode carbon block and the cathode carbon block is completed, and the two processes are combined, so that the process of transferring and pouring the molten electrolyte in the traditional process is reduced, the temperature reduction caused by the transferring process is avoided, and the starting process is more stable and efficient.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present utility model and are not limiting; while the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present utility model or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the utility model, it is intended to cover the scope of the utility model as claimed.
Claims (10)
1. An electrolyte melting burner for roasting an aluminum electrolysis cell, which is characterized in that: the device comprises a combustion chamber, a fuel gas inlet, an air inlet, a flame detection electrode and an ignition electrode;
the shell of the combustion chamber is made of high-temperature resistant heat conducting materials, combustion channels are distributed in the combustion chamber, a smoke exhaust pipeline is arranged at the upper part of the combustion chamber, and smoke holes are formed in the combustion chamber;
the fuel gas inlet and the air inlet are communicated with the combustion channel;
the detection end of the flame detection electrode is introduced into the combustion chamber to obtain whether flame exists or not;
the ignition end of the ignition electrode is introduced into the combustion chamber to ignite the combustion gas.
2. The electrolyte melting burner for aluminum electrolysis cell according to claim 1, wherein: the combustion chamber is integrally in a platy cube structure.
3. The electrolyte melting burner for aluminum electrolysis cell according to claim 2, wherein: the combustion channel is a labyrinth channel or a serpentine channel distributed in the combustion cavity, and the smoke exhaust pipeline is communicated with the combustion channel.
4. The electrolyte melting burner for aluminum electrolysis cell according to claim 3, wherein: the number of the air inlets and the number of the gas inlets are at least one.
5. The electrolyte melting burner for aluminum electrolysis cell according to claim 4, wherein: the air inlet, the gas inlet, the flame detection electrode and the ignition electrode are all arranged at the top of the combustion chamber.
6. The electrolyte melting burner for aluminum electrolysis cell according to claim 5, wherein: the flame detection electrode is associated with a gas valve externally connected to the gas inlet so as to close the gas valve when the flame disappears.
7. The electrolyte melting burner for aluminum electrolysis cell according to claim 6, wherein: the two ends of the top of the combustion chamber are provided with pin shafts and shaft sleeves which are matched with each other so as to splice a plurality of combustion chambers.
8. An electrolytic cell starting mechanism, which is characterized in that: the electrolyte melting type burner for aluminum electrolysis cell roasting comprises an electrolytic cell, an anode carbon block and at least one electrolyte melting type burner for aluminum electrolysis cell roasting, wherein the electrolytic cell is used for containing electrolyte powder or electrolyte blocks, the anode carbon block is positioned in the electrolytic cell, the electrolyte melting type burner for aluminum electrolysis cell roasting is hoisted in the electrolytic cell, and the jet direction of smoke holes of a combustion cavity of the electrolyte melting type burner for aluminum electrolysis cell roasting is parallel to the vertical face of the anode carbon block and faces the inside of the electrolytic cell.
9. The electrolyzer starting mechanism as recited in claim 8 wherein: the electrolytic cell is open in the start-up state.
10. The electrolyzer starting mechanism as recited in claim 9, wherein: the size of the combustion chamber is matched with the size of the electrolytic tank, and the shape of the combustion chamber is matched with the shape of the gap at the outer side of the anode carbon block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965857.XU CN219083065U (en) | 2022-11-08 | 2022-11-08 | Electrolyte melting type burner for roasting aluminum electrolysis cell and electrolytic cell starting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222965857.XU CN219083065U (en) | 2022-11-08 | 2022-11-08 | Electrolyte melting type burner for roasting aluminum electrolysis cell and electrolytic cell starting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219083065U true CN219083065U (en) | 2023-05-26 |
Family
ID=86401016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222965857.XU Active CN219083065U (en) | 2022-11-08 | 2022-11-08 | Electrolyte melting type burner for roasting aluminum electrolysis cell and electrolytic cell starting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219083065U (en) |
-
2022
- 2022-11-08 CN CN202222965857.XU patent/CN219083065U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107673584A (en) | A kind of cover-plate glass electric smelter and its heating means | |
| CN219083065U (en) | Electrolyte melting type burner for roasting aluminum electrolysis cell and electrolytic cell starting mechanism | |
| CN202900445U (en) | Boryl solid fuel propulsion device using plasma generator to ignite | |
| CN208341719U (en) | A kind of pure oxygen burning ladle baking facilities | |
| CN201053696Y (en) | Energy-saving, highly-effective, environment-friendly civil heating oven | |
| CN107782065B (en) | Yellow phosphorus electric furnace electrode baking method capable of avoiding damaging furnace bottom | |
| CN201417083Y (en) | Novel direct-fired melting furnace | |
| CN211920874U (en) | Reforming heat exchanger and natural gas reformer for SOFC power generation system | |
| CN102275927A (en) | Environmentally-friendly energy-saving high-efficiency silicon smelting furnace capable of performing gas combustion heat accumulation utilizing electric arc dual heating and back combustion of exhaust containing residual heat | |
| CN111707097A (en) | Purification and rapid cooling smelting furnace for producing battery negative electrode material | |
| CN209877630U (en) | Novel pot-type calcining furnace | |
| CN201053820Y (en) | Highly effective crucible furnace | |
| WO2023206892A1 (en) | Method for collecting high-temperature anode gas of aluminum electrolysis cell | |
| CN207147222U (en) | A kind of natural gas melting furnace | |
| CN107764047A (en) | Reduction furnace | |
| CN202175560U (en) | Gas electric arc double heat type thermal storage waste heat waste gas backdraft environment protection energy conservation efficient silicon refining furnace | |
| CN201348430Y (en) | Heat accumulating type energy-saving aluminum melting furnace | |
| CN201462915U (en) | Biomass semi-gasification furnace | |
| CN210533031U (en) | Ring type roasting furnace for graphite electrode production | |
| CN107101500A (en) | A kind of high-efficiency heat-accumulating Non-ferrous metal melting furnace | |
| CN203517763U (en) | Double-layer furnace | |
| CN113477915A (en) | Energy-saving temperature raising device for baking steel ladle | |
| CN107270703A (en) | A kind of natural gas melting furnace | |
| CN114001548B (en) | Anode mold baking system and anode mold baking method | |
| CN215697907U (en) | Dual-purpose lead ingot smelting pot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450000 No.1, floor 1, unit 1, building Y11, No.11, Changchun Road, high tech Zone, Zhengzhou City, Henan Province Patentee after: Zhengzhou Jingwei Technology Industrial Co.,Ltd. Address before: 450000 No.1, floor 1, unit 1, building Y11, No.11, Changchun Road, high tech Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU JINGWEI TECHNOLOGY INDUSTRY Co.,Ltd. |