The Research On Cold Model Test Of Multi-channel Rotary Kiln Burner And Numerical Calculation

With the rapid development of economy, the energy supply is tensional. The production of cement clinker consumes a large number of fuel and makes the environmental pollution more dangerous, so that it's very important to use new combustion technique and new process in clinker production. The adoption of new technique and process can reduce the pressure for energy supply and save fossil fuel, improve the economical benefits of the cement enterprise. And what's more, the application of updated combustion facility can relieve environmental contamination in cement factory, it's very useful for the development of cement industry.As a main facility for clinker calcination in a rotary kiln, multi-channel burner plays a key role in the economy and clinker quality. The paper gives a detailed analysis about the air flow process in different structural parameters by applying cold model method. Main contents about the paper are given as follows:Firstly, the paper has given a summary about cement calcination technique and process, analyzes the feature and role about a rotary kiln calcination system, introduces main fuel classification used for kiln and prospect about kiln burner development.Secondly, given a detailed analysis about cold modeling and calculation, and founded experimental bench according to the result of cold model calculationThirdly, according to the experimental data analysis, explained the influence to kiln flow field with the different burner structure and parameters.In the end, using CFD tool i. e. Fluent software gives a numerical simulation result, makes us have a more overall and exact understanding about flow process in a kiln.