浮法玻璃熔窑熔化池底部横向宽度对熔化池温度场影响的研究

基于计算机数值模拟方法,以460 t/d浮法玻璃熔窑为模拟对象,分析研究了不同熔化池底部横向宽度对玻璃熔窑的生产能力以及熔窑内玻璃液温度场的影响。结果表明,适当减小熔化池底部横向宽度不会明显改变卡脖和冷却部的玻璃液状况,从而不影响熔窑的生产能力。但不同的熔化池底部横向宽度将导致熔化部玻璃液温度场发生改变,中轴面处玻璃液温度降低,而胸墙处玻璃液温度升高,导致窑内玻璃液横向温度梯度发生相应变化,加剧玻璃液横向对流,有助于玻璃液均化和澄清。

Numerical simulation of temperature field of melting pools with different horizontal width in the bottom of float glass furnace

Numerical simulation of melting tank in a float glass furnace with 460 t/d was performed.The influence on production capacity and temperature field were investigated in float glass furnace,under different horizontal width of the melting pools.The simulating results show that,the situation of glass flow in the neck and cooling will not be changed significantly by reducing the horizontal width of the melt pools at the bottom,and thus it does not affect the furnace capacity.But different horizontal width of the molten pools at the bottom will result in temperature field change of melting pools.Axial surface of temperature decreases,while the parapet temperature increases,which will lead to change of horizontal temperature gradient,exacerbate horizontal convection of glass flow,and will help homogenization and clarification of glass flow.