ZHENGSHAN TECHNOLOGY

The requirements for the use of electrode paste in a submerged arc furnace mainly include the following aspects:
1、 Conductivity
High conductivity: As a conductive material, the primary requirement for electrode paste is to have good conductivity. High conductivity can ensure smooth current transmission between the electrode and the furnace body, reduce resistance loss, and improve the operational efficiency of the furnace.
Low resistivity: The resistivity of electrode paste should be as low as possible to reduce the loss of current during transmission and improve energy utilization efficiency.
2、 Sintering performance
Good sintering performance: The electrode paste needs to be self carbonized and sintered into electrodes in a submerged arc furnace, so it is required that the electrode paste has good sintering performance and can be quickly and uniformly sintered in a high-temperature environment inside the furnace.
Suitable sintering temperature: The sintering temperature of the electrode paste should match the operating temperature of the submerged arc furnace to ensure that the electrode can work stably and continuously in the furnace.
3、 Physical performance
Suitable particle size: The particle size of the electrode paste should be moderate, neither too large nor too small, to facilitate uniform distribution and sintering in the furnace. Excessive particle size may lead to insufficient sintering, while excessive particle size may increase porosity during the sintering process, affecting the strength of the electrode.
Appropriate density and strength: The electrode paste should have a high density and strength after sintering to withstand high temperature, high pressure, and mechanical stress in the furnace.
4、 Chemical stability
High oxidation resistance: The electrode paste needs to withstand high temperature oxidation environment in the furnace, so it is required that the electrode paste has high oxidation resistance to reduce electrode loss caused by oxidation.
Low ash content: Ash content is an impurity component in electrode paste, and excessive ash content can reduce the conductivity and sintering performance of the electrode. Therefore, the ash content of electrode paste should be as low as possible.
5、 Usage and maintenance requirements
Quality selection: Choose electrode paste products with better quality to ensure that the conductivity and sintering performance of the electrode paste meet the requirements of the submerged arc furnace.
Clean the surface: Before applying electrode paste, it is necessary to clean the electrode and furnace surface thoroughly to ensure that there are no dust, grease, or other substances that affect the conductivity between the electrode and furnace.
Uniform application: Use specialized tools or manually apply the electrode paste evenly to the contact surface between the electrode and the furnace body, filling the gap between the electrode and the furnace body to ensure conductivity.
Regular inspection: During the normal operation of the furnace, the condition of the electrode paste should be checked regularly, and the paste layer should be promptly repainted or replaced to ensure the stable operation of the electrode.
Sealed storage: After using the electrode paste, it should be sealed and stored to avoid impurities such as dust and moisture affecting its quality.
In summary, the requirements for the use of electrode paste in submerged arc furnaces cover multiple aspects such as conductivity, sintering performance, physical performance, chemical stability, and usage and maintenance requirements. These requirements together ensure the stable operation and efficient use of the electrode paste in the submerged arc furnace.