Application of in-flight melting technology by RF induction thermal plasmas to glass production

作者：Yao Yaochun^*; Hossain M M; Watanabe T; Funabiki F; Yano T

来源：Plasma Science and Technology, 2008, 10(3): 344-347.

• induced thermal plasmas
• in-flight melting
• plasma heat transfer
• glass production

An innovative in-flight glass melting technology with induced thermal plasmas was developed for the purpose of energy conservation and environmental protection. Two-dimensional modeling was used to simulate the thermo fluid fields in the plasma torch. The in-flight melting behavior of glass raw material was investigated by various analysis methods. Results showed that the plasma temperature was up to 10000 K with a maximum velocity over 30 m/s, which made it possible to melt the granulated glass raw material within milliseconds. The carbonates in the raw material decomposed completely and the compounds in the raw material attainted 100% vitrification during the in-flight time from the nozzle exit to substrate. The particle melting process is similar to the unreacted-core shrinking model.

• 出版日期2008-6
• 单位昆明理工大学