Numerical simulation of the stand in load-reduction sintering process
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摘要: 在燒結臺車上安裝支撐板,可以支撐起上部燒結餅,減輕下部料層荷重,從而改善下部料層透氣性,提高垂直燒結速度,進而提高燒結生產率.應用ANSYS軟件對燒結過程中料層內支撐板的熱應力進行模擬.結果表明:燒結過程中,支撐面中間部位和支撐板窄面中上部是最容易損壞的部位;排礦時,支撐板支腳部位產生應力集中,當支腳厚度大于40mm時可以滿足要求.料層減荷燒結工業試驗驗證了模擬結果的正確性.Abstract: Upper sinter cakes could be supported by the stands installed on the pallets and the load of the lower bed was reduced. As a result the permeability of the lower bed was improved and the sintering velocity increased, moreover the produetivity of sintering was boosted. The thermal stress of the stand was simulated during sintering process with ANSYS software. The results revealed that during sintering process the middle of the supporting surface and the middle and upper zone of the narrow surface of the stand were most easily damaged. During discharging, stress concentration occurred at the feet of the stand. When the thickness of the feet was over 40 mm the stand worked safely. The validity of simulation results were proved by the industrial trial of load reduction sintering.
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Key words:
- ironmaking /
- sintering /
- stand /
- heat stress simulation
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