ZHENGSHAN TECHNOLOGY

The length and position of the electrode after sintering of the electrode paste are crucial for production efficiency and equipment safety in the production process of the mineral hot furnace. Appropriate electrode working length and position can not only ensure efficient operation of the furnace, but also reduce the occurrence of electrode accidents. This article will explore how to maintain appropriate working length and position after electrode paste sintering.
The Importance of Electrode Working Length
The working length of an electrode refers to the distance from the furnace cover to the surface of the furnace charge. This length directly affects the current density and thermal load of the electrode. If the electrode is too long, the current density will decrease, and the electrode is prone to overheating, resulting in soft breakage of the electrode. If the electrode is too short, the current density will increase, and the electrode is prone to oxidation, leading to electrode fracture.
2. Methods for maintaining the working length of electrodes
2.1 Regular measurement and adjustment
Operators should regularly measure the electrode length and adjust it based on the measurement results. The commonly used measurement methods include visual inspection, infrared rangefinder, and electrode position sensor. When adjusting the electrode length, it can be achieved by pressing or lifting the electrode.
2.2 Reasonably control the amount of electrode paste added
The amount of electrode paste added directly affects the sintering speed and length of the electrode. Operators should reasonably control the amount of electrode paste added based on the electrode consumption rate and sintering rate, to avoid electrodes being too long or too short.
2.3 Optimizing the quality of electrode paste
The quality of electrode paste has a significant impact on the sintering effect and length control of electrodes. Choosing an electrode paste with low ash content, moderate volatile matter, and reasonable particle size distribution can improve the sintering quality and length control accuracy of the electrode.
3. Control of electrode position
The electrode position refers to the relative position of the electrode inside the furnace, including the verticality and levelness of the electrode. The control of electrode position has a significant impact on the stable operation of the furnace and the service life of the electrodes.
3.1 Regularly check the electrode position
Operators should regularly check the position of the electrodes to ensure that their verticality and levelness meet the requirements. The commonly used inspection methods include visual inspection, laser rangefinder method, and electrode position sensor method.
3.2 Adjusting electrode position
If the electrode position is found to be offset, it should be adjusted in a timely manner. When adjusting the electrode position, it can be achieved by adjusting the electrode pressure release device or electrode lifting device. During the adjustment process, attention should be paid to the force on the electrode to avoid damage caused by improper adjustment.
3.3 Optimize electrode pressure release and lifting system
The performance of electrode pressing and lifting systems has a significant impact on the control of electrode position. Regularly inspecting and maintaining the electrode pressing and lifting system to ensure its normal operation can improve the precision of electrode position control.
4. Comprehensive management and monitoring
4.1 Establish electrode management ledger
Establishing an electrode management ledger to record the length, position, pressing frequency, and maintenance status of electrodes can help analyze the consumption patterns and causes of electrode failures, and improve the level of electrode management.
4.2 Adopting an automated monitoring system
By adopting an automated monitoring system, the length and position of the electrodes can be monitored in real-time, with automatic alarms and adjustments, which can improve the control accuracy and response speed of the electrodes and reduce human operational errors.