Study On Characteristics Of Flows And Response In Cement Pre-Calciner With Swirl And Suspension Effect

The technology of cement processing with preheater and calciner is the most advanced technology at present in cement industry. Calciner is the most important equipment of the cement industry. The function of calciner affects the stabilization and the capability of system. In order to probe its interior rules and get instructive information for systematic nosis, optimization of system design and systematical combination, and developing new technology, this paper focuses on the calciner system as subject, establishing the mathematical model of the coal burning rate and the decomposing rate of carbonate. The mathematical model is verified by some existing systems. A series of simulation experiments are carried out and some corresponding rules among some system parameters and the main performances of the system are obtained.The numerical simulation based on the Computational Fluid Dynamics (CFD) is applied widely in the engineering field due to its accurate numerical prediction for the flow, heat exchange, chemistry reaction and multiphase flow. So numerical simulation on the turbulence flow is adopted to investigate the flow character in the calciner to optimize system structure and improve system performance. This method can save the R&D cost and time so that it is significant in the engineering application.This literary grace uses Europe pulls a pair of fluids models in of Renault should dint model. Pressure and speed match an adoption SIMPLE method, rest each item all adopts a rank aweather a format, the TDMA pursues noodles generation and low flabby factor.The chemical reaction in the stove adopts limited velocity/ to consume to spread model, imitating a DD type to spray to combine cement decomposition the reaction condition of material inside fluxion and stove of the stove.By now, it can be used to solve some problems involved in a calciner, such as mufti-phase flow, heat transfer and combustion of pulverized coal, etc. Directly reflect jet grouting calciner decomposition of raw materials, the coal powder burning,, and the fields of the velocity, temperature. And draw the corresponding conclusions, Analysis calciner for the gas-solid movement and pulverized coal combustion process of decomposition of calcium carbonate and provide a favorable basis for the theory and analytical tools.