CGM Online

 The use process and consumption of the electrode paste In terms of the characteristics of use, the electrode paste is a continuous self-baking electrode. During use, the outer layer is a cylinder made of a 1-2mm thick steel plate. The electrode paste is regularly added to the cylinder. As the production progresses, the electrode paste is gradually softened-melted-baked. During roasting, a large amount of volatile matter is released. After entering the conductive clip part of the electrode, it changes from semi-coking to complete coking due to the high temperature, and finally becomes a conductive carbon electrode. The electrode paste is baked into a conductive electrode by various heat of the electric furnace itself, so it is called a self-baking electrode. During the working process of the electrode, a section of cylinder is connected to the top of the electrode at regular intervals, and a certain amount of electrode paste is added, and this is repeated.

 According to research and practice, adding artificial graphite with an ash content of not more than 1% in the electrode paste can increase the electrical conductivity, thermal conductivity and thermal stability of the product. Hard graphite has the characteristic of being easy to adhere to hard surfaces. This characteristic is like liquid wetting on a solid surface to form a thin film. At the same time, it has a relatively large adsorption force for asphalt. This has its practical significance for use.

 The two materials of electrode paste and smelting flux seem to have nothing to do with each other, but many engineers in the smelting industry crush the electrode paste into 5-10mm particles with a jaw crusher, which is used as a material for repairing the bottom of the furnace and used as a smelting flux. . The reason, let me talk about it slowly. Melting flux is a mixture of various materials formulated and then heated and melted. The melting method can be heated by flame or arc, and the heating temperature is generally 1500 to 1600 degrees Celsius. During the entire heating and melting process, the carbonate in the ore is decomposed, the high-valence manganese is reduced to MnO and forms silicate with SiO2, and the SiO2 is burned. Then pour the refined flux into water at a temperature lower than 20 degrees Celsius to form the flux into particles, which is called wet method; or use compressed air to blow the molten flux into small particles, which is called dry method. The wet-proce