摘要
应用数值模拟的方法,对中材建设有限公司在阿尔巴尼亚竣工的TITAN项目,建立了3300t/d、φ4.4m×65m新型干法水泥生产线回转窑系统窑皮、耐火砖、浇注料以及筒体等各部分的数学模型,并对它们相互间的热传递过程进行了模拟研究。结果表明,回转窑窑皮越厚,筒体表面温度越低,散失的热量越少;2号轮带两侧筒体表面温度比3号轮带的高,为防止轮带变形及更大的热膨胀,应适当增加该处冷却风机的风量;2号轮带附近靠向窑尾一侧的筒体表面温度较高,建议增加两台冷却风机;当正常连续生产中窑皮厚度相对稳定时,可以适当减少冷却风机的个数,降低电耗,若停开4台筒体冷却风机,可每天节省用电720kWh。
The numerical simulation was used to analyze Albania TITAN project, a 3300 t/d new dry-process cement clinker production line with a φ 4.4m×65m rotary kiln, which was completed by CBMI. Mathematical models were established for the kiln coating, refractory bricks, castables and kiln shell and heat transfer among these parts were simulated. The results show that a thicker kiln coating results in a lower temperature of the kiln shell and a less heat loss. The kiln shell surface temperature on both sides of tire No.2 is higher than that of tire No.3, therefore the air flow of cooling fans should be increased properly for tire No.2 to avoid tire deformation and severe thermal expansion. The kiln shell surface temperature near tire No.2 at the kiln inlet side is higher, thus adding two cooling fans is suggested. The number of cooling fans should be reduced appropriately to reduce the power consumption when the coating thickness remains stable during a period of normal and continuous production. It is found that 720 kWh of electricity can be saved per day when four shell cooling fans are turned off.
出处
《水泥技术》
2011年第1期36-40,共5页
Cement Technology
关键词
回转窑
轮带
筒体
冷却风机
数值模拟
Rotary kiln
Tire
Kiln shell
Cooling fan
Numerical simulation
作者简介
通讯地址：1中材建设有限公司，北京100176；2亚稳材料制备技术与科学国家重点实验室（燕山大学），河北秦皇岛066004；
