论文部分内容阅读
今年,我厂的生产任务去年大跃进的基础上提高了一倍,但使用的原材料完全是土铁土焦,土铁碳,硅,锰低,硫、磷高,起初我们利用在冲天炉内脱硫的办法(脱硫率达60%左右),铁水质量完全合乎要求。但由于炉内脱硫需要校多的碱性渣,而我厂的热风水套天冲天炉又是酸性的,因此存在不少问题。例如:熔化率曲3．5吨/时降为2吨/时;炉视寿命由15小时辅短到8小时。完不成产量计划。为了在保证质量的情况下,进一步提高产量我们采用了不在冲天炉内大量脱硫(使铁水的
This year, the production tasks of our factory doubled from the Great Leap Year last year. However, the raw materials used are entirely earth iron coke, iron soil carbon, silicon, manganese low, high sulfur and phosphorus, at first we use in the cupola Desulfurization approach (desulfurization rate of about 60%), the quality of molten iron in full compliance with requirements. However, due to desulfurization furnace need more alkaline slag, and my factory hot water jacket days Cupola is acidic, so there are many problems. For example: Melting rate of 3.5 tons / hour dropped to 2 tons / hour; furnace life as short by 15 hours to 8 hours. End production plan. In order to ensure the quality of the case, to further increase production We are not using a large number of cupola desulfurization (hot metal