Numerical simulation of flow and temperature fields in the radiation
chamber of a waste-heat boiler for copper flash smelting
ZHONG Wei1, DING Sheng1, SONG Dong-gen2, JU Xia2, TONG Shui-guang1
1. Institute of Thermal Science and Power Engineering,Zhejiang University,Hangzhou 310027, China;
2. China Nerin Engineering CO.LTD, Nanchang 330002, China
According to a large waste-heat boiler for cooper flash smelting, the method and model for simulating the flow and temperature fields in the radiation chamber of boiler were proposed based on CFD technology. Turbulence flow, diffusion of chemical components, and heat transfer were considered in the simulation model. By comparing the original design scheme and some readjustment design schemes, the general distribution rules of the flow and temperature fields in the radiation chamber were generated while a baffle-board was installed in the middle part of the chamber was obtained, as well as the air for sulfation was injected into the entrance of the chamber. The results indicated that the baffle-board was essential for gas diffusion in the chamber in view of its position and size were critical for the main pattern of the flow and temperature fields; the air for sulfation should be injected into the path of the hot gas flow in order to break it up, and to reduce its forward kinetic energy.
ZHONG Wei, DING Sheng, SONG Dong-gen, JU Xia, TONG Shui-guang. Numerical simulation of flow and temperature fields in the radiation
chamber of a waste-heat boiler for copper flash smelting. J4, 2012, 46(2): 321-326.
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