SLG型粉体表面改性机的温度调控规律
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摘要
为系统研究改性腔的温度调控规律,在SLG-200型粉体表面改性机上搭建温度自动测控系统,实现对改性腔温度的自动监控和对"风门/料门开度"的计算机调控;建立以"风门/料门开度"为输入变量、以"改性腔温度"为输出变量的静态模型和传递函数模型,探究了空载运行条件下改性机"风门/料门开度"对温度的影响规律。实验结果表明:在空载运行条件下,"风门/料门开度"的变化对改性温度的调节作用是非线性的,风门开度的有效调节范围为20%～80%;风门比料门的开度变化对温度的调节作用更显著;风门开度由小变大时,传递函数的增益先增大后减小,特征时间常数先减小后增大。
In order to systematically study the temperature regulation rules and control of the modified cavity,an automatic temperature measurement and control system was built on SLG-200 type powder surface modification machine to realize automatic monitoring of the temperature of the modified cavity and computer control of the opening of the air/material valve. The static model and transfer function model with air/material valve opening as input variable and modified cavity temperature as output variable were established. And the influence rule of air/material valve opening of the modifier on temperature under no-load operation condition was explored. The experimental results show that the adjusting effect of the air/material valve opening on the modified temperature is nonlinear under the condition of no-load operation. The effective adjusting range of the air valve opening is 20% ～ 80%. The adjusting effect of the air valve on the temperature is more significant than that of the material valve. The gain of the transfer function first increases and then decreases. The characteristic time constant first decreases and then increases when the air valve opening increases from small to large.
In order to systematically study the temperature regulation rules and control of the modified cavity,an automatic temperature measurement and control system was built on SLG-200 type powder surface modification machine to realize automatic monitoring of the temperature of the modified cavity and computer control of the opening of the air/material valve. The static model and transfer function model with air/material valve opening as input variable and modified cavity temperature as output variable were established. And the influence rule of air/material valve opening of the modifier on temperature under no-load operation condition was explored. The experimental results show that the adjusting effect of the air/material valve opening on the modified temperature is nonlinear under the condition of no-load operation. The effective adjusting range of the air valve opening is 20% ～ 80%. The adjusting effect of the air valve on the temperature is more significant than that of the material valve. The gain of the transfer function first increases and then decreases. The characteristic time constant first decreases and then increases when the air valve opening increases from small to large.
引文
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[2]郑水林.无机粉体表面改性技术发展现状与趋势[J].无机盐工业,2011,43(5):1-6.
[3]郑水林,李杨,骆剑军. SLG型连续式粉体表面改性机应用研究[J].非金属矿,2002(S1):25-27.
[4]张曙.工业4. 0和智能制造[J].机械设计与制造工程,2014(8):1-3.
[5]肖彩红,田秀成.工业自动化技术应用分析与发展展望[J].电子世界,2013(14):7-7.
[6]马彦红.工业自动化的发展现状及其应用[J].硅谷,2010(14):16-16.
[7]章昌南.浅谈我国工业自动化发展状况[J].金属加工:冷加工,2008(19):1-5.
[8]吴翠平. SLG型粉体表面改性机流场特性与数值模拟研究[D].北京:中国矿业大学(北京),2013.
[9]向晓汉. S7-200 PLC基础及工程应用[M].北京:机械工业出版社,2014.
[10]于建华,仰大江. PLC及WINCC组态软件在自动控制中的应用[J].山东工业技术,2017(13):5.
[11]萧德云.系统辨识理论及应用[M].北京:清华大学出版社,2014.
[12]田秀华,杨顺.几种温度控制方法的特点及应用[J].自动化与仪表,2001,16(6):62-63.
[13]赵广元. MATLAB与控制系统仿真实践[M].北京:北京航空航天大学出版社,2016.
[14]王乐峰,王建锋,刘飞.基于阶跃响应曲线的系统传递函数辨识方法[J].嘉应学院学报,2016,34(11):28-31.
[15]陈岚峰,张亚琴,程立英,等.基于数据的MATLAB系统辨识工具箱模型识别[J].沈阳师范大学学报(自然科学版),2013,31(4):527-530.