Precautions against electrode breakage, tripping and excessive oxidation
Take the following measures to effectively avoid electrode breakage, tripping and excessive oxidation in the steelmaking process: ⊙ Adjust the electrode phase sequence. In the three-phase AC arc furnace, the electrode phase sequence should be correct, and the phase sequence should be counterclockwise. If it is clockwise, the electrode will loosen when used, causing damage. ⊙ To reduce the breakage and damage caused by mechanical external force, furnace collapse and improper operation, large pieces of steel materials should be installed in the lower layer of the furnace as far as possible, and scrap steel materials should be evenly distributed in the furnace. ⊙ Avoid non-conductive materials in scrap steel, and do not make non-conductive objects such as lime gather directly below the electrode to affect the electrification or break the electrode. ⊙
The following measures can effectively avoid electrode breakage, tripping and excessive oxidation during the steelmaking process:
⊙ Adjust the electrode phase sequence. In the three-phase AC electric arc furnace, the electrode phase sequence should be correct. The phase sequence should be counterclockwise. If it is clockwise, the electrode will loosen when used, causing damage.
⊙ To reduce the breakage and damage caused by mechanical external force, furnace collapse and improper operation, large pieces of steel materials should be installed in the lower layer of the furnace as far as possible, and scrap steel materials should be evenly distributed in the furnace.
⊙ Avoid non-conductive materials in scrap steel, and do not make non-conductive objects such as lime gather directly below the electrode to affect the electrification or break the electrode.
⊙ Pay attention to the position of the furnace cover, the electrode column is aligned with the furnace top hole, and the electrode column is parallel. The wall of the furnace top hole should be cleaned frequently to avoid the accumulation of residual steel slag and crushing the electrode.
⊙ Keep the electric furnace tilting system in good condition and keep the electric furnace tilting smoothly.
⊙ Avoid clamping the electrode holder at the electrode connection and the electrode joint hole.
Choose high-quality joints with high strength and good machining accuracy to avoid mixing multiple products when using them.
⊙ Protect the end face of the electrode to prevent the end face from being oxidized and embedded with foreign matter, which will affect the connection between the electrodes.
The electrode hole and joint thread are prevented from mechanical damage before and during the electrode connection.
⊙ The electrode hole and joint shall be protected from steel slag or foreign matter embedded to affect the rotary joint. Before use, it shall be blown with compressed air.
⊙ Reduce the oxidation consumption of the electrode perimeter, strengthen the sealing of the furnace, reduce the air intrusion into the furnace; minimize the exposure time of the red hot electrode outside the furnace, and standardize the oxygen blowing operation.
⊙ For the melting furnace, if conditions permit, the electrode adopts spray cooling technology, which can effectively reduce the oxidation consumption of the electrode side.
2023 was an extraordinary year, a year in which the country's economy recovered and developed steadily after three years of the pandemic. Looking at the overall market situation, all walks of life have been affected by different impacts. The upstream carbon is affected by the hot sales of new energy vehicles, and the prices of key raw materials have risen sharply; the downstream carbon is affected by the serious shortage of steel mills, and the demand for graphite electrode products continues to be sluggish; As a result, the development space of the carbon market is flat, which has caused great resistance to our business development and also brought severe market challenges. In the face of this series of high-pressure situations, first of all, I would like to thank the chairman of the group for his full support and trust in the company. Secondly, I would like to thank all the staff of Juxian Graphite for practicing the guiding ideology of "working together to forge ahead in a new era and leading the dream of a carbon power" and adhering to the enterprise spirit of "unity, faith, innovation and win-win", We have worked hard to achieve the steady operation, guaranteed employee treatment happiness index. Brand building is firmly in the forefront of the domestic, international export business speed expansion. Juxian new development pattern to speed up the construction, enterprise high-quality development in-depth implementation. These achievements embody the painstaking efforts and sweat of the unremitting struggle of the "Juxian people", and demonstrate the extraordinary elegant demeanor and strength of the "Juxian people.
Recently, Shanxi Juxian Graphite New Materials Co., Ltd. has been granted three utility model patents, the patent names of which are: a vertical lifting device for supporting crucible with inner hole; A measuring tool for triangular rotating and docking. A graphite electrode end face flatness measuring tool adds a festive celebration to the Spring Festival!
In order to promote the spirit of employees' love and dedication, defying difficulties, daring to endure hardships, and daring to contribute; encourage continuous breakthroughs in scientific and technological innovation such as new technologies, new products, new equipment, and new processes; at the same time, sum up experience, commend the advanced, and follow an example The power encourages all employees to meet the more difficult tasks and challenges in 2024. On the basis of democratic selection by each unit, and after discussion and study at the general manager's office meeting, it was decided to commend the advanced collectives and individuals in 2023: advanced collectives (machine processing workshop of machine processing branch factory), model workers: Gao xingming and Chen Rui, and outstanding employees: Bai yanbo, Zhang min and enron.