一、前言在以硫铁矿及尾砂为原料生产硫酸过程中,稳定沸腾炉出口 SO_2浓度对整个生产过程具有极为重要的意义。一般是用调节沸腾炉的投矿量来维持炉气中 SO_2的稳定。可是到目前为止,采用自动调节加矿量的办法在国内仅少数几个硫酸厂进行过试验,正式用 I. Introduction In the process of producing sulfuric acid from pyrite and tailings, it is very important for the entire production process to stabilize the export SO 2 concentration of the boiling furnace. It is generally used to adjust the volume of fluidized bed furnace to maintain the stability of SO2 in the furnace. However, so far, the method of automatically adjusting the amount of mineralization has been tested in only a few sulfuric acid plants in China,