The production process and use of electrode paste and cold mash paste
Production process and use of electrode paste
Production process
The production process of electrode paste mainly includes steps such as raw material preparation, mixing and stirring, forming, roasting and quality inspection.：
Raw material preparation: The main raw materials include petroleum coke, asphalt coke, graphitized coke and other carbon raw materials and coal asphalt.These raw materials need to be broken, sieved, etc. before mixing and stirring to ensure uniform particle size.
Mixing and stirring: Mix the treated raw materials with coal asphalt and stir to make them fully uniform.
Molding: The mixed materials are molded. The main molding methods are molding, extrusion molding, vibration molding, and isostatic compression molding.The electrode paste after forming needs to have a certain shape, size, density and mechanical strength.
Roasting: The electrode paste after forming needs to be roasting to improve its thermal stability and mechanical strength.
Quality inspection: After quality inspection, qualified electrode pastes can be sold out of the factory.
Use
Electrode paste is an important industrial material, which is widely used in electric furnace steelmaking, electrolytic aluminum, ferroalloy smelting and other fields.Its main uses include：
Electric furnace steelmaking: In the process of electric furnace steelmaking, electrode paste is used as the main raw material for self-baking electrodes. Through the consumption of electrode paste and the self-baking process, the electrode height in the furnace is continuously supplemented and maintained.At the same time, the electrode paste has good electrical conductivity and thermal stability in the high temperature environment of the furnace, which can ensure the stable operation of steelmaking in the electric furnace.
Electrolytic aluminum: In the electrolytic aluminum industry, electrode paste also plays an important role. As a conductive material, its quality directly affects the production efficiency and product quality of electrolytic aluminum.
Ferroalloy smelting: Electrode paste is also used in the smelting process of ferroalloys as an important conductive and heating material.
In addition, with the enhancement of environmental awareness, the recycling and utilization of electrode paste has also received more and more attention.Through technological innovation and process improvement, the recycling and reuse of electrode pastes not only helps to reduce environmental pollution, but also brings economic benefits to enterprises.
Production process and use of cold mash
Production process
The production process of cold mash is relatively simple, which mainly includes steps such as batching, preheating, kneading and packaging.：
Ingredients: The aggregates (such as calcined anthracite coal, metallurgical coke, graphite crushed, etc.), binders (such as coal asphalt, coal tar or anthracene oil, etc.) and additives are batched in a certain proportion.
Preheating: The aggregate is preheated after dry mixing with additives, and the binder is also preheated to improve the kneading effect.
Kneading: Put the preheated aggregates, additives and binders into the kneading machine, control the kneading temperature and time, and make it fully mixed evenly.
Packaging: The kneaded cold mash is packed after it is out of the pot for transportation and use.
Use
Cold mash is a kind of carbon-filled raw material for masonry, which is widely used in industrial kilns such as aluminum electrolytic cells, ironmaking blast furnaces, smelting furnaces, and calcium carbide furnaces.Its main uses include：
Filling the gap between the carbon blocks of the electrolytic cell: Cold pounding paste is used as a pounding material to fill the gap between the cathode of the carbon block at the bottom of the electrolytic cell and the surrounding seam between it and the carbon block on the side wall, so that the inner carbon block of the electrolytic cell can be coke into a whole, improving the life and current efficiency of the electrolytic cell.
Bonding and repairing refractory materials: Cold mash is also used to bond and repair refractory materials and carbon products in electrolytic aluminum, steel and other industries.
In general, electrode paste and cold mash paste have their own characteristics in production technology and use, but they both play an important role in modern industry.With the continuous progress of technology and the enhancement of environmental awareness, the production technology and performance of these two materials are also constantly optimized and improved.
