钒氮合金制备过程温度场模拟  

Temperature Field Simulation of Vanadium-Nitrogen Alloy Preparation Process

作　　者：朱军[1,2] 李姝 王斌 张驰[1] 李冬 康敏 ZHU Jun;LI Shu;Wang Bin;ZHANG Chi;LI Dong;KANG Min(School of Metallurgy Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China;Shaanxi Advanced Energy Storage and Vanadium New Material Engineering Technology Research Center,Ankang 725000,China)

机构地区：[1]西安建筑科技大学冶金工程学院,西安710055 [2]陕西省先进储能与钒新材料工程技术研究中心,安康725000

出　　处：《材料导报》2020年第22期22100-22104,22117,共6页Materials Reports

基　　金：陕西省教育厅产业化项目(16JF014)。

摘　　要：钒氮合金在双推板窑内的制备过程是一步氮化还原与传热过程,生产周期较长,能耗较高。为了有效地降低生产能耗,首次对推板窑生产氮化钒过程进行了温度场模拟尝试,这对优化设备具有一定的指导作用。本工作通过对双推板窑窑腔建立三维传热模型,采用ANSYS Workbench仿真平台对制备钒氮合金的典型加热段进行数值模拟,获得了不同加热段料球切片的温度场分布。通过对模拟结果进行验证,进一步采取提高升温速率,优化推板窑运行速度,达到缩短生产周期的目的。优化结果显示,在原有热工制度不变的基础上,优化后料球通过主窑的时间缩短了108 min;优化后产量在原工况基础上增加了6.45%;优化后的吨耗电量降低到了优化前的93.94%。The preparation process of vanadium nitrogen was a one-step nitriding reduction and heat transfer process in double pusher kiln,which was a long production cycle and high energy consumption process.In order to reduce energy consumption effectively,the temperature field simulation of vanadium-nitride production in push plate kiln was made for the first time,which has a certain guiding effect on the optimization equipment.A three-dimensional heat transfer model of double pusher kiln’s chamber was established,and take the ANSYS Workbench as a platform to si-mulate the typical heating section of vanadium nitrogen,then the temperature field distribution of vanadium nitrogen in different heating sections was obtained.By validating the simulation results,some measures were taken to increase the heating rate and optimization the pusher kiln speed,further shorter production cycle.The optimization results show that,the speed of the material ball through the main kiln decreased 108 min,production at the original condition of foundation can be increased by 6.45%,the amount of power consumption for tons reduced to 93.95%than before.

关 键 词：双推板窑 钒氮合金 数值模拟 温度场 

分 类 号：TF841.3[冶金工程—有色金属冶金] TF-9