CN116259433A - Electrode paste and preparation method thereof - Google Patents

Electrode paste and preparation method thereof Download PDF

Info

Publication number
CN116259433A
CN116259433A CN202211729195.4A CN202211729195A CN116259433A CN 116259433 A CN116259433 A CN 116259433A CN 202211729195 A CN202211729195 A CN 202211729195A CN 116259433 A CN116259433 A CN 116259433A
Authority
CN
China
Prior art keywords
parts
electrode paste
raw materials
graphite powder
tin oxide
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.)
Pending
Application number
CN202211729195.4A
Other languages
Chinese (zh)
Inventor
罗洪才
颜太明
穆大勇
王明建
周剑
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zunyi Quality Carbon Co ltd
Original Assignee
Zunyi Quality Carbon Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zunyi Quality Carbon Co ltd filed Critical Zunyi Quality Carbon Co ltd
Priority to CN202211729195.4A priority Critical patent/CN116259433A/en
Publication of CN116259433A publication Critical patent/CN116259433A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention relates to an electrode paste which comprises the following raw materials in parts by weight: 23-25 parts of oil mass, 27-30 parts of graphite powder, 20-25 parts of calcined coal, 30-35 parts of residual anode block, 10-15 parts of zirconium dioxide, 5-10 parts of modifying additive and 3-5 parts of tin oxide, wherein the modifying additive comprises nano calcium carbonate, nano silicon dioxide and resin, the mass ratio of the nano calcium carbonate to the nano silicon dioxide to the resin is 1:2:1, the particle size of the calcined coal is 4-12mm, the particle size of the graphite powder is 0.5-4mm, and the particle size of the residual anode block is 10-30mm. The electrode paste is prepared from oil mass, graphite powder, calcined coal, anode scrap, zirconium dioxide, a modified additive and tin oxide, and has good oxidation resistance, conductivity and high mechanical strength, and besides, the electrode paste is excellent in that: the selected raw materials have wide sources and low price, and the expansion coefficient and the resistance coefficient of the product are smaller than those of the conventional electrode paste, so that the loss of electric energy is reduced.

Description

Electrode paste and preparation method thereof
Technical Field
The invention relates to the technical field of electrode paste, in particular to electrode paste and a preparation method thereof.
Background
The electrode paste is an electric conduction material used for electric furnace equipment such as a ferroalloy furnace, a calcium carbide furnace and the like, and is also called a self-baking electrode, and roasting is completed by means of heat in a submerged arc furnace, so that the consumption speed of the electrode is matched with the roasting speed, which is the key for using the electrode paste.
For example, chinese patent (bulletin No. CN 102956281A) discloses an electrode paste and a manufacturing method thereof, wherein the electrode paste is prepared from the following raw materials in percentage by mass: the preparation method of the electrode paste comprises the steps of firstly, grading and grinding the residual anode blocks with the mass percentage of 65-70% of electrically calcined anthracite, 8-15% of medium-temperature coal pitch and 20-25% of electrode paste, and respectively grinding the residual anode blocks into 29-31% of powder particles with the particle size of less than 0.075 mm; also for example, in chinese patent (publication No. CN 103832992A), an electrode paste and a method for preparing the same are disclosed, wherein the electrode paste comprises a solid material and a binder, the solid material comprises anthracite, coke and graphite, the binder comprises asphalt and tar, and the weight percentage of the binder comprises, in the case of anthracite, 40% -50%, 18% -22%, 6% -8% of graphite, 13% -15% of asphalt and 13% -15% of tar; the conventional electrode paste on the market at present has high resistivity and increased power consumption due to high ash content, and the electrode paste still needs to be further optimized for enhancing the stability and the use effect of the electrode paste.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the electrode paste and the preparation method thereof, which have the advantages of small resistivity, high compressive strength and the like, and solve the problems of high resistivity and increased power consumption caused by larger ash content of the conventional electrode paste in the current market, and the electrode paste still needs to be further optimized for enhancing the stability and the use effect of the electrode paste.
In order to achieve the above purpose, the present invention provides the following technical solutions: an electrode paste comprises the following raw materials in parts by weight: 23-25 parts of oil mass, 27-30 parts of graphite powder, 20-25 parts of calcined coal, 30-35 parts of anode scrap block, 10-15 parts of zirconium dioxide, 5-10 parts of modifying additive and 3-5 parts of tin oxide.
Further, the modifying additive comprises nano calcium carbonate, nano silicon dioxide and resin, and the mass ratio of the nano calcium carbonate to the nano silicon dioxide to the resin is 1:2:1.
Further, the material comprises the following raw materials in parts by weight: 23 parts of oil mass, 27 parts of graphite powder, 20 parts of calcined coal, 30 parts of anode scrap block, 10 parts of zirconium dioxide, 5 parts of modifying additive and 3 parts of tin oxide.
Further, the material comprises the following raw materials in parts by weight: 24 parts of oil mass, 28 parts of graphite powder, 22 parts of calcined coal, 32 parts of anode scrap block, 12 parts of zirconium dioxide, 7 parts of modifying additive and 4 parts of tin oxide.
Further, the material comprises the following raw materials in parts by weight: 25 parts of oil mass, 30 parts of graphite powder, 25 parts of calcined coal, 35 parts of anode scrap block, 15 parts of zirconium dioxide, 10 parts of modifying additive and 5 parts of tin oxide.
Further, the particle size of the calcined coal is 4-12mm, the particle size of the graphite powder is 0.5-4mm, and the particle size of the anode scrap block is 10-30mm.
A method for preparing an electrode paste, comprising the steps of:
s1, dispersing nano calcium carbonate, nano silicon dioxide and resin in a solvent through ultrasonic, then adding a silane coupling agent into the solvent, continuing ultrasonic, and finally carrying out vacuum drying to obtain a modified additive;
s2, taking 23-25 parts of oil quantity, 27-30 parts of graphite powder, 20-25 parts of calcined coal, 30-35 parts of anode scrap block, 10-15 parts of zirconium dioxide, 5-10 parts of modified additive and 3-5 parts of tin oxide by weight;
s3, kneading, forming and checking the raw materials.
Further, the dry materials are kneaded for 15-20 minutes during kneading, wet mixing is carried out for 45-55 minutes after oil is removed, and the stirring time after the raw materials are mixed is 30-40 minutes.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
the electrode paste and the preparation method thereof consist of oil mass, graphite powder, calcined coal, anode scrap, zirconium dioxide, a modified additive and tin oxide, and have good oxidation resistance and conductivity and high mechanical strength, and besides, the advantages are that: the selected raw materials have wide sources and low price, and the expansion coefficient and the resistance coefficient of the product are smaller than those of the conventional electrode paste, so that the loss of electric energy is reduced.
Drawings
FIG. 1 is a flow chart of the preparation of the present invention;
FIG. 2 is a detailed preparation flow chart of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment I, an electrode paste comprises the following raw materials in parts by weight: 23 parts of oil mass, 27 parts of graphite powder, 20 parts of calcined coal, 30 parts of anode scrap block, 10 parts of zirconium dioxide, 5 parts of modifying additive and 3 parts of tin oxide.
The modified additive comprises nano calcium carbonate, nano silicon dioxide and resin, wherein the mass ratio of the nano calcium carbonate to the nano silicon dioxide to the resin is 1:2:1, the particle size of the calcined coal is 4mm, the particle size of the graphite powder is 0.5mm, and the particle size of the anode scrap block is 10mm.
A method for preparing an electrode paste, comprising the steps of:
s1, dispersing nano calcium carbonate, nano silicon dioxide and resin in a solvent through ultrasonic, then adding a silane coupling agent into the solvent, continuing ultrasonic, and finally carrying out vacuum drying to obtain a modified additive;
s2, taking 23 parts of oil quantity, 27 parts of graphite powder, 20 parts of calcined coal, 30 parts of anode scrap block, 10 parts of zirconium dioxide, 5 parts of modified additive and 3 parts of tin oxide as raw materials in parts by weight;
s3, kneading, forming and checking the raw materials, wherein the dry materials are kneaded for 15 minutes during kneading, the raw materials are wet-mixed for 45 minutes after oiling, and the stirring time is 30 minutes after the raw materials are mixed.
An electrode paste comprises the following raw materials in parts by weight: 24 parts of oil mass, 28 parts of graphite powder, 22 parts of calcined coal, 32 parts of anode scrap block, 12 parts of zirconium dioxide, 7 parts of modifying additive and 4 parts of tin oxide.
The modified additive comprises nano calcium carbonate, nano silicon dioxide and resin, wherein the mass ratio of the nano calcium carbonate to the nano silicon dioxide to the resin is 1:2:1, the particle size of the calcined coal is 8mm, the particle size of the graphite powder is 2.5mm, and the particle size of the anode scrap block is 20mm.
A method for preparing an electrode paste, comprising the steps of:
s1, dispersing nano calcium carbonate, nano silicon dioxide and resin in a solvent through ultrasonic, then adding a silane coupling agent into the solvent, continuing ultrasonic, and finally carrying out vacuum drying to obtain a modified additive;
s2, taking 24 parts of oil quantity, 28 parts of graphite powder, 22 parts of calcined coal, 32 parts of anode scrap block, 12 parts of zirconium dioxide, 7 parts of modified additive and 4 parts of tin oxide as raw materials in parts by weight;
s3, kneading, forming and checking the raw materials, wherein the dry materials are kneaded for 17 minutes during kneading, wet-mixed for 50 minutes after oiling, and the stirring time after mixing the raw materials is 35 minutes.
An electrode paste comprises the following raw materials in parts by weight: 25 parts of oil mass, 30 parts of graphite powder, 25 parts of calcined coal, 35 parts of anode scrap block, 15 parts of zirconium dioxide, 10 parts of modifying additive and 5 parts of tin oxide.
The modified additive comprises nano calcium carbonate, nano silicon dioxide and resin, wherein the mass ratio of the nano calcium carbonate to the nano silicon dioxide to the resin is 1:2:1, the particle size of the calcined coal is 12mm, the particle size of the graphite powder is 4mm, and the particle size of the anode scrap block is 30mm.
A method for preparing an electrode paste, comprising the steps of:
s1, dispersing nano calcium carbonate, nano silicon dioxide and resin in a solvent through ultrasonic, then adding a silane coupling agent into the solvent, continuing ultrasonic, and finally carrying out vacuum drying to obtain a modified additive;
s2, taking 25 parts of oil, 30 parts of graphite powder, 25 parts of calcined coal, 35 parts of anode scrap block, 15 parts of zirconium dioxide, 10 parts of modified additive and 5 parts of tin oxide as raw materials in parts by weight;
s3, kneading, forming and checking the raw materials, wherein the dry materials are kneaded for 20 minutes during kneading, wet-mixed for 55 minutes after oiling, and the stirring time after mixing the raw materials is 40 minutes.
The main raw materials used in the invention are as follows:
calcining coal: the high-quality anthracite is selected as a raw material and is produced by calcining in a single-phase alternating current calcining furnace at 2000 ℃, so that moisture and volatile components can be effectively removed, the density and conductivity can be improved, the mechanical strength and the antioxidation degree can be enhanced, and the high-quality anthracite has the excellent characteristics of low ash, low sulfur, low phosphorus, high heat productivity and high compressive strength. The main application of the material is to produce electrodes, which are indispensable main materials for various aluminum-used pellets, and the electrically calcined coal can be used as a carburant in the steelmaking process.
Zirconium dioxide: the zirconium-based alloy is a main oxide of zirconium, is white odorless and tasteless crystal under the common condition, has high melting point and boiling point, has high hardness of about 2700 ℃, is an insulator at normal temperature, has stable chemical property at high temperature, has good thermochemical stability, high-temperature conductivity, higher high-temperature strength and toughness, and also has good mechanical, thermal, electrical and optical properties.
Graphite powder: is mineral powder, and has carbon simple substance, soft texture and black gray color as main component; the paper is greasy, can be polluted, has the hardness of 1-2, can be increased to 3-5 along with the increase of impurities in the vertical direction, has the specific gravity of 1.9-2.3, has the melting point of more than 3000 ℃ under the condition of isolating oxygen, is one of the most temperature-resistant minerals, has relatively stable chemical properties, and is insoluble in water, dilute acid, dilute alkali and organic solvents; the material has high temperature resistance and conductivity, and can be used as refractory material, conductive material and wear-resistant lubricating material.
Anode scrap: in the electrolytic refining process, the residual anode mud is stripped and cleaned after the anode is taken out of the tank, so that the anode can be melted and cast. Some anode stubs can also be used as other materials, for example, copper anode stubs can be added into a converter as cold materials, and can also be used as raw materials for manufacturing copper sulfate; the nickel anode scrap can be used to make electrolyte that supplements nickel ions.
Tin oxide: is an inorganic substance, has a chemical formula SnO2, is white, light yellow or light gray tetragonal, hexagonal or orthorhombic crystal system powder, has a melting point of 1630 ℃ and a boiling point of 1800 ℃, and is an excellent transparent conductive material.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The electrode paste is characterized by comprising the following raw materials in parts by weight: 23-25 parts of oil mass, 27-30 parts of graphite powder, 20-25 parts of calcined coal, 30-35 parts of anode scrap block, 10-15 parts of zirconium dioxide, 5-10 parts of modifying additive and 3-5 parts of tin oxide.
2. An electrode paste according to claim 1, characterized in that: the modified additive comprises nano calcium carbonate, nano silicon dioxide and resin, wherein the mass ratio of the nano calcium carbonate to the nano silicon dioxide to the resin is 1:2:1.
3. An electrode paste according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 23 parts of oil mass, 27 parts of graphite powder, 20 parts of calcined coal, 30 parts of anode scrap block, 10 parts of zirconium dioxide, 5 parts of modifying additive and 3 parts of tin oxide.
4. An electrode paste according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 24 parts of oil mass, 28 parts of graphite powder, 22 parts of calcined coal, 32 parts of anode scrap block, 12 parts of zirconium dioxide, 7 parts of modifying additive and 4 parts of tin oxide.
5. An electrode paste according to claim 1, characterized in that: the material comprises the following raw materials in parts by weight: 25 parts of oil mass, 30 parts of graphite powder, 25 parts of calcined coal, 35 parts of anode scrap block, 15 parts of zirconium dioxide, 10 parts of modifying additive and 5 parts of tin oxide.
6. An electrode paste and a method for producing the same according to claim 1, wherein: the particle size of the calcined coal is 4-12mm, the particle size of the graphite powder is 0.5-4mm, and the particle size of the anode scrap block is 10-30mm.
7. A method for preparing an electrode paste, comprising the steps of:
s1, dispersing nano calcium carbonate, nano silicon dioxide and resin in a solvent through ultrasonic, then adding a silane coupling agent into the solvent, continuing ultrasonic, and finally carrying out vacuum drying to obtain a modified additive;
s2, taking 23-25 parts of oil quantity, 27-30 parts of graphite powder, 20-25 parts of calcined coal, 30-35 parts of anode scrap block, 10-15 parts of zirconium dioxide, 5-10 parts of modified additive and 3-5 parts of tin oxide by weight;
s3, kneading, forming and checking the raw materials.
8. The method for producing an electrode paste according to claim 7, wherein: the dry materials are kneaded for 15-20 minutes during kneading, wet-mixed for 45-55 minutes after oil is removed, and the stirring time after the raw materials are mixed is 30-40 minutes.
CN202211729195.4A 2022-12-30 2022-12-30 Electrode paste and preparation method thereof Pending CN116259433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211729195.4A CN116259433A (en) 2022-12-30 2022-12-30 Electrode paste and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211729195.4A CN116259433A (en) 2022-12-30 2022-12-30 Electrode paste and preparation method thereof

Publications (1)

Publication Number Publication Date
CN116259433A true CN116259433A (en) 2023-06-13

Family

ID=86678524

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211729195.4A Pending CN116259433A (en) 2022-12-30 2022-12-30 Electrode paste and preparation method thereof

Country Status (1)

Country Link
CN (1) CN116259433A (en)

Similar Documents

Publication Publication Date Title
CN101949034B (en) Cathode graphitizing current stop block for aluminum electrolysis
RU2546268C2 (en) Carbon article, method of producing carbon article and use thereof
CN102101664B (en) High-strength high-graphite carbon electrode and preparation method thereof
CN103952721B (en) A kind of blue charcoal base carbon anode used for aluminium electrolysis and preparation method thereof
CN103996855B (en) The production method of intermediate-phase carbon coated graphite negative material
CN100494507C (en) High-density semi-graphite cathode carbon block and method for producing same
CN1229523C (en) Process for producing cathode carbon block for aluminum cell
CN102951914A (en) Electrode paste produced with industrial waste carbon material and preparation method thereof
CN105655003A (en) Modified electrode paste and preparation method thereof
CN111349503B (en) Petroleum coke electrochemical desulfurization method
CN103387221A (en) Pitch-free bonding cathode carbon block material for aluminium electrolysis cell and production method of pitch-free bonding cathode carbon block material
CN116259433A (en) Electrode paste and preparation method thereof
CN100480431C (en) Production process for graphitized cathode
CN105908031B (en) Aluminum alloy materials of high conductivity and preparation method thereof
CN102290141A (en) Method for producing closed paste with waste carbon anode green blocks
CN104661337B (en) A kind of resistance material and using method thereof
CN102674857B (en) Magnesium composite material for side wall of upper part of aluminum electrolytic cell and preparation method of magnesium composite material
CN1155732C (en) Process for preparing Al-Si alloy in DC arc furnace
US7300560B2 (en) Cathode block for aluminum refining and method for production thereof
CN113658740B (en) Novel carbon composite material and preparation method of electrode paste
CN113248269B (en) Magnesia carbon brick added with composite binder and preparation method thereof
CN112876249B (en) Method for preparing prebaked anode, prebaked anode and application thereof
CN1033530A (en) Low-resistance anti-oxidized self-baking anode for electrolyzing aluminium
CN1219504A (en) Production technique for smelting crystalline silicon with complete quartz sand
CN108892135B (en) Method for graphitizing by using roasted fragments as resistance filler in Acheson type graphitizing furnace

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication