Formation Mechanism Analysis of Siliceous Defects in Flat Glass
The arch roof structure of large glass melting kiln was simulated by the method of simulation analysis,the stress stability of arch roof structure was investigated,and the deformation and stress of arch roof of different sizes were analyzed under cold and hot working conditions.The results show that the total deformation of different spans increases gradually with the increase of span width,and the region with large deformation in the middle increases gradually to both sides.The maximum stress value of crown is mainly concentrated in the middle part of crown and the corner position.The stress concentration of crown corner position is serious.The arch top of the long-span melting kiln will be at risk due to the lack of refractory material properties at the corner of the arch top and the tension of the drawing rod.Under reasonable structural design,higher requirements are put forward for construction,silicon brick quality and melting combustion system.