Parametric design and simulation analysis of Rotary kiln

In this paper, according to the thermal principle, the incineration technology of rotary kiln was analyzed. The amount of flue gas burned in the rotary kiln is calculated. On this basis, the structural parameters of rotary kiln were calculated. The combustion simulation of the design model was carried out through the actual engineering case, and the comparative analysis with the actual case was carried out. The results show that the aspect ratio of the rotary kiln is one of the main factors affecting the combustion effect of the rotary kiln, and L/D=13/2.1 is economically reasonable. After continuous incineration, the reduction rate of slag ignition is less than 5%, the removal rate of fly ash is more than 99.99%, and the flue gas was discharged up to the standard.

I. Introduction

Industrial production has caused a substantial increase in natural resources, and the large amount of waste produced has an unavoidable impact on the environment. Solid waste has a great harm to the natural environment and people’s life, and it lasts for a long time. For example, waste water from chemical, metallurgical, printing and dyeing industries, or waste from medical systems has different degrees of impact on the environment and biological health. The harmless disposal of hazardous waste is the most important measure in hazardous waste management. The harmless treatment and disposal methods of solid waste mainly include safe landfill method, solidification method, physical and chemical method, and thermochemical treatment [1–3].