CN108754539A - Using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material - Google Patents
Using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material Download PDFInfo
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- CN108754539A CN108754539A CN201810571414.8A CN201810571414A CN108754539A CN 108754539 A CN108754539 A CN 108754539A CN 201810571414 A CN201810571414 A CN 201810571414A CN 108754539 A CN108754539 A CN 108754539A
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- anode
- particle
- little particle
- filler material
- roasting
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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
- C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
- C25C3/12—Anodes
- C25C3/125—Anodes based on carbon
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
- C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Using anode scrap little particle as the prebaked anode roasting technique of filler material, anode scrap little particle is broken into certain particle size, it is sieved by certain particle size, when anode green bodies shove charge, it is roasted according to prebaked anode roasting common process using anode scrap little particle as filler material, after prebake anode roasting is burnt down at coming out of the stove, the anode scrap little particle for being sticked to prebaked anode surface is cleaned out, the anode scrap little particle return system under clearing up is reused.Present invention process roasts the filler material used using anode scrap little particle as prebaked anode, not only greatly reduce the production cost of prebaked anode roasting, and anode scrap little particle will not be consumed during prebaked anode roasts, and can be reused, and have the advantages that at low cost and environmental protection and energy saving.
Description
Technical field
The present invention relates to prebaked anode roasting technique technical fields, and in particular to using aluminum electrolytic residual electrode little particle as filling out
The prebaked anode roasting technique of charge.
Background technology
China is electrolyzing aluminum industry big producer, and with increasing substantially for electrolytic aluminium, the demand to anode block is also all with day
Increase, and 30 ~ 40 kilograms of filler material need to be consumed by often producing one ton of prebaked anode, the main function of filler material is：Prevent anodic oxygen
Change；Conduction heat makes anode carbon block thermally equivalent；The shape of fixed anode carbon block prevents its deformation；Hinder the suitable of volatile matter
Profit discharge, and also to export volatile matter.It is mainly metallurgical coke to produce the filler material in roasting process currently as prebaked anode
And calcined petroleum coke, the price of metallurgical coke is at 1100 yuan/ton；The price of calcined petroleum coke is therefore every at 2400 yuan/ton
The filler material expense that year consumes generates a large amount of carbon dioxide pollution environment more than 500,000,000 RMB.
Pre-baked anode for aluminum consumes lower part 90%-85% or so during electrolytic aluminium factory use, and remaining 10-15% is left
The right side is anode scrap, the bulky grain anode scrap after broken（Diameter is more than 8mm）It can be used as prebaked anode raw material；Prebaked anode little particle is residual
Pole occurs mainly with the anode scrap outer layer before being crushed, since anode scrap outer layer is by long-time high-temperature oxydation and contact electrolyte, ash content
Impurity is more（More than 2%）, and intensity is low, cannot function as the use of prebaked anode raw material to prevent from influencing product quality.In this way, prebake
Anode little particle anode scrap is taken as waste material and undersells, as the situation is tense for national environmental protection, prebaked anode little particle anode scrap conduct
Solid waste commercial value persistently drops, future face sell do not go out even to need to spend to look for the company for having disposition qualification into
Row disposition.
Invention content
The present invention provides using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material, showed with solution
There is skill
Filler material existing for art is of high cost, pollution environment, resource recycling the problems such as.
The technical solution adopted by the present invention to solve the technical problems is：
Using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material, steps are as follows for specific method：
（1）It is broken：Anode scrap little particle is broken into certain particle size, is sieved by certain particle size, specific grain size proportion is that grain size is more than 8
The particle of millimeter accounts for the 85% of total particle, and the particle less than 8 millimeters accounts for the 15% of total particle；
（2）Shove charge：When anode green bodies shove charge, by step（1）The obtained particle less than 8 millimeters is as filler material according to prebake sun
Pole roasting common process is roasted；
（3）Scarfing cinder：After prebake anode roasting is burnt down at displaying for the first time, viscous anode scrap little particle on the anode surface is cleaned out, prebake
Anode is tested and is packaged after qualification, and the anode scrap little particle return system under clearing up is reused.
Above-mentioned anode scrap little particle is that remaining anode scrap is reacted in aluminium electroloysis.
Anode scrap little particle of the above-mentioned grain size more than 8 millimeters is roasted as raw material according to prebaked anode roasting common process
It burns.
Anode scrap little particle is the waste in prebaked anode aluminium electrolysis process, generally undersells or garbage disposal, anode scrap are small
Particle will not be consumed during prebaked anode roasts, and can be reused.
Present invention process roasts the filler material used using anode scrap little particle as prebaked anode, not only greatly reduces pre-
The production cost of anode-baking is roasted, and anode scrap little particle will not be consumed during prebaked anode roasts, and can be repeated
It utilizes, has the advantages that at low cost and environmental protection and energy saving.
Specific implementation mode
Using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material, steps are as follows for specific method：
（1）It is broken：Anode scrap little particle is broken into certain particle size, is sieved by certain particle size, specific grain size proportion is that grain size is more than 8
The particle of millimeter accounts for the 85% of total particle, and the particle less than 8 millimeters accounts for the 15% of total particle；
（2）Shove charge：When anode green bodies shove charge, by step（1）The obtained particle less than 8 millimeters is as filler material according to prebake sun
Pole roasting common process is roasted；
（3）Scarfing cinder：After prebake anode roasting is burnt down at displaying for the first time, viscous anode scrap little particle on the anode surface is cleaned out, prebake
Anode is tested and is packaged after qualification, and the anode scrap little particle return system under clearing up is reused.
Claims (3)
1. using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material, it is characterized in that specific method step is such as
Under：
（1）It is broken：Anode scrap little particle is broken into certain particle size, is sieved by certain particle size, specific grain size proportion is that grain size is more than 8
The particle of millimeter accounts for the 85% of total particle, and the particle less than 8 millimeters accounts for the 15% of total particle；
（2）Shove charge：When anode green bodies shove charge, by step（1）The obtained particle less than 8 millimeters is as filler material according to prebake sun
Pole roasting common process is roasted；
（3）Scarfing cinder：After prebake anode roasting is burnt down at displaying for the first time, viscous anode scrap little particle on the anode surface is cleaned out, prebake
Anode is tested and is packaged after qualification, and the anode scrap little particle return system under clearing up is reused.
2. it is according to claim 1 using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material,
It is characterized in that：The anode scrap little particle is that remaining anode scrap is reacted in aluminium electroloysis.
3. it is according to claim 1 using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material,
It is characterized in that：Anode scrap little particle of the grain size more than 8 millimeters is carried out as raw material according to prebaked anode roasting common process
Roasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810571414.8A CN108754539A (en) | 2018-06-06 | 2018-06-06 | Using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810571414.8A CN108754539A (en) | 2018-06-06 | 2018-06-06 | Using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108754539A true CN108754539A (en) | 2018-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810571414.8A Pending CN108754539A (en) | 2018-06-06 | 2018-06-06 | Using aluminum electrolytic residual electrode little particle as the prebaked anode roasting technique of filler material |
Country Status (1)
| Country | Link |
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| CN (1) | CN108754539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717907A (en) * | 2020-06-19 | 2020-09-29 | 内蒙古霍煤通顺碳素有限责任公司 | Pre-baked anode carbon blank filler and preparation process thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694967A (en) * | 2015-03-29 | 2015-06-10 | 索通发展股份有限公司 | Prebaked anode baking technology by utilizing smelting slags as filler |
| CN105347825A (en) * | 2015-11-19 | 2016-02-24 | 湖南祯晟炭素实业有限公司 | Preparation method of high-strength low-electrical resistance normal-temperature cold ramming paste |
| CN106222700A (en) * | 2016-08-22 | 2016-12-14 | 中国铝业股份有限公司 | A kind of method utilizing anode scrap to prepare aluminum carbon anode |
-
2018
- 2018-06-06 CN CN201810571414.8A patent/CN108754539A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104694967A (en) * | 2015-03-29 | 2015-06-10 | 索通发展股份有限公司 | Prebaked anode baking technology by utilizing smelting slags as filler |
| CN105347825A (en) * | 2015-11-19 | 2016-02-24 | 湖南祯晟炭素实业有限公司 | Preparation method of high-strength low-electrical resistance normal-temperature cold ramming paste |
| CN106222700A (en) * | 2016-08-22 | 2016-12-14 | 中国铝业股份有限公司 | A kind of method utilizing anode scrap to prepare aluminum carbon anode |
Non-Patent Citations (1)
| Title |
|---|
| 李龙钦，: ""残极灰综合利用探讨"", 《2015河南有色金属学术年会论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111717907A (en) * | 2020-06-19 | 2020-09-29 | 内蒙古霍煤通顺碳素有限责任公司 | Pre-baked anode carbon blank filler and preparation process thereof |
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Application publication date: 20181106 |
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| RJ01 | Rejection of invention patent application after publication |