熔池设计与性能分析
毕业论文关键字 铬渣 稻壳灰 熔池 熔点 粘度
The Design and Performance Analysis of Molten Pool Abstract The processing method of heavy metal slag is getting growing concern, because it’s large production, toxicity and hazards. At present, people process the heavy metal slag by curing treatment, acidic restore, alkaline restore and the sintering restore commonly. The detoxifying slag widely used in metallurgy, construction, glass and other industries. In this article, chromium residue is selected as the processing object, and the goal is to design a molten pool using rice husk as fuel. Rice husk ash and chromium slag melt-mixed by a certain percentage, and then cooled to form a stable new slag. The rice husk ash melting point is relatively high, reaching more than 1300 degrees Celsius, and the viscosity is relatively large, is not conducive to the current. Accordingly, there is a need to add some additives to lower the melting point and viscosity, and then chromium slag is added into the rice husk ash, to form a final slag. To reduce energy and refractory consumption, the melting point of the final slag should be lower than 1200 ℃. Usually, melting temperature is about 100-200 ℃ higher than the ash melting point, and it is expected to 1300 ℃. Under the appropriate melting temperature, the desired range of the viscosity of slag is 5-10 poises. After calculation, it select iron ore and dolomite as an additive, and the proportion of chromium slag between rice husk ash, iron ore and dolomite is 22.5:3:1:0.5. The melting point of the formed slag is 1176.3 ℃, the smelting temperature of molten pool is 1300 ℃, and the slag viscosity is 0.625 Pa • s. The structure of the molten pool is based on the reverberatory furnace. On this basis, the reverberatory furnace hearth is inclined at an angle, and the original slag mouth is cancelled, the final form of slag discharged from the original copper mouth.
Keywords chromium residue rice husk ash molten pool melting point viscosity
1 绪论 1
1.1 重金属 1
1.2 重金属污染主要来源 2
1.3 重金属污染的危害 3
1.4 目前重金属废渣的处理方法 4
1.5 重金属废渣的综合利用 6
上一篇：基于DSP的太阳能板性能的研究
下一篇：三电平逆变器SVPWM算法的简化