生物氧化预处理氧化槽内气液混合相的密度机理模型

在新疆高寒高海拔地区生物氧化提金预处理的研究中,用机理建模法建立了氧化槽内气液混合相的密度机理数学模型。经过对氧化槽内气液两相的混合密度进行数值计算,拟合出矿区环境温度、矿区大气压强以及矿浆质量浓度对氧化槽内气液两相的混合密度的影响曲线,提出了一种对氧化槽设备的改进方案。结果表明,氧化槽内气液两相的混合密度与矿区环境温度以及矿浆质量浓度成正比例关系,而与矿区大气压强成反比例关系;改进后的氧化槽设备可提高生物氧化反应的速度和效率。

Density Mechanism Model on Gas-liquid Mixing Phase in the Oxidation Tank of Biological Oxidation Pretreatment

In the research of biological oxidation gold pretreatment to recovere gold from the cold and high areas in Xinjiang, a gas-liquid mixing phase density model by the mechanism modeling method was established. By the calculation of the gas-liquid mixing phase density in the oxidation tank, the fitting curve that the influence of environment temperature, atmospheric pressure and mass concentration to mixture density was resulted, and the oxidation tank equipment improvement was developed. The results show that there are direct proportion relationship between mixture density with environment temperature and mass concentration. But there are inverse proportion relationship between mixture density and atmospheric pressure. This modified oxidation tank equipment can improve the reaction speed and efficiency of biological oxidation reaction.