There are many reasons for electrode accidents, but it can be summarized into three points: operation reasons, equipment reasons and the quality of electrode paste. Electrode paste as the raw material of self- baking electrode, the probability of electrode accidents is low, accounting for only 10% to 20% of the cause of the accident, most of the electrode accidents are due to not strictly according to the process operating procedures, equipment with disease operation, long -term maintenance and maintenance caused by. The speed of electrode baking, the strength after baking, electrical conductivity, consumption speed and so on have a close relationship with the process operation, electrode paste column height and paste operation, equipment insulation, clamping and conductive equipment failure, the production accuracy and quality of the motor shell, the quality of the butt of the motor shell are all factors that may cause electrode accidents. So what are the suggestions for the use of electrode paste in submerged arc furnace.
① The electrode paste must be stored in a special closed warehouse, and the ground must behardened with concrete, and the dust and debris on the ground must be cleaned up. No conditions of the enterprise finally recommended the purchase of tons of bag packaging electrode paste, in the clean ground after placing with tarpaulin cover, to prevent dust debris pollution electrode paste, to prevent exposure in the sun electrode paste, change the performance of the electrode paste;
Bulk electrode paste, no warehouse storage, must be stacked in a clean place on the ground, and covered with tarpaulin.
② Electrode paste in the transfer and add process to prevent secondary pollution, the tools, utensils must be clean, the measurement and addition of electrode paste column must be responsible for, it is recommended to measure not less than once per shift, add paste times not less than two times a day, in order to maintain a relatively stable paste column height, prevent electrode lack of paste and suspended paste, reduce electrode accidents, It is of great benefit to electrode baking and consumption. After the electrode paste is added, each phase electrode cylinder is covered with a special cylinder cover to prevent dust and debris from falling into the cylinder and resulting in electrode accidents.
③ There must be special person responsible for the production and docking of the electrode barrel, in strict accordance with the accuracy and size of the equipment and process requirements, the weld must be welded without trachoma, and it must be polished and smooth. After the production and docking, the weld should be inspected with a flaw detector, and the welding should be accepted by a special person and numbered on the electrode barrel so as to track its quality.
Arabic
Azerbaijani
Czech
English
French
Georgian
German
Indonesian
Italian
Japanese
Korean
Persian
Portuguese
Russian
Spanish
Thai
Turkish