Zhengshan Technology: Improve the quality of electrode paste and help the development of large-scale mine heat furnaces
With the global pursuit of the goals of ”carbon peak“ and ”carbon neutrality", energy conservation and emission reduction have become an important direction for the transformation and development of traditional industries.As the key equipment for the production of a variety of ferroalloys and calcium carbide, the large-scale, high-efficiency and environmental protection of mineral heat furnaces have become the inevitable trend of the development of the industry.In this context, electrode paste, as an important conductive material for mine heating furnaces, its quality directly affects the production efficiency and operating stability of mine heating furnaces.Through continuous technological innovation and quality improvement, Zhengshan Technology is committed to meeting the demand for high-quality electrode pastes in large mine heat furnaces.
The ore heating furnace uses three self-roasting electrodes to heat the charge, reduce the metal elements from the oxide ore and melt them. The temperature in the furnace can be as high as 2000~3000℃.In this extreme working environment, the electrode paste not only needs to have excellent electrical conductivity, but also good high temperature resistance, oxidation resistance and mechanical erosion resistance.The traditional electrode paste production process and raw material formula are no longer able to meet the needs of modern large-scale mine heating furnaces. Therefore, Zhengshan Technology has carried out a comprehensive upgrade from raw material selection, production technology to quality inspection and other aspects.
In terms of raw materials, Zhengshan Technology has abandoned the traditional general calcined anthracite coal and metallurgical coke powder, and instead adopts electric calcined anthracite coal, calcined petroleum coke and modified coal asphalt.These new raw materials not only reduce the specific resistance of the electrode paste, improve the electrical conductivity, but also significantly enhance the mechanical strength and high temperature resistance of the electrode paste.For example, the softening point of modified coal asphalt is higher, and the toluene insolubles and coking values are better than that of medium-temperature coal asphalt, which enables the electrode paste to form a stronger network structure during the sintering process, thereby improving the compressive, flexural and tensile strength of the electrode.
In terms of production technology, Zhengshan Technology has introduced advanced paste forming machines to produce large pieces of electrode paste into small pieces, increasing the plasticity of electrode paste.This change solves the problem that large pieces of electrode paste are easy to form holes when melted in the furnace, and improves the use effect of electrode paste.At the same time, Zhengshan Technology has also optimized the particle size distribution and sintering temperature curve of the electrode paste to ensure that the electrode paste can reach the best performance state evenly and quickly during the sintering process.
In terms of quality inspection, Zhengshan Technology has established a strict quality management system to monitor and strictly control key indicators such as ash content, volatile content, specific resistance, compressive strength, flexural strength and tensile strength of the electrode paste in real time.Through continuous data analysis and feedback, Zhengshan Technology can adjust the production process and raw material formula in a timely manner to ensure that each batch of electrode paste meets high quality standards.
Zhengshan Technology's measures to improve the quality of electrode pastes not only meet the demand for high-performance electrode pastes in large mine heat furnaces, but also promote the green development of the entire electrometallurgical industry.With the development of mine heating furnaces in the direction of large-scale, high-efficiency and environmental protection, Zhengshan Technology will continue to be committed to technological innovation and quality improvement, and contribute to the sustainable development of the electrometallurgical industry.
Zhengshan Technology has successfully improved the quality level of electrode pastes through measures such as optimizing the selection of raw materials, improving production processes, and strengthening quality inspection, and has met the urgent demand for high-performance electrode pastes in large mine heat furnaces.In the future, Zhengshan Technology will continue to uphold the spirit of innovation, pragmatism and efficiency, and contribute to the promotion of the green development of the electrometallurgical industry.
