Bringing Mechanism Of Float Glass Stripe And Numerical Simulation About Uniform Function Of The Cooler

The development of float glass technology process, uniform defects and quality difference of float glass between China and other countries has been summarized in this thesis. The forming rule of float glass side character stripe has been discussed. The relationship between glass fluid uniformity and depth of the cooler, which is placed under the glass fluid, has been simulated and investigated. The samples were taken from the float glass bars with uniform defects. The relationship of the compositions and side stripes were characterized by XRD, XRF, etc. According to practically technical parameter of float glass furnace, the cooler model was built. The relationship between uniformity and depth were simulated and analyzed by ANSYS software. The experimental results show that float glass side stripes have character figure due to different reason. The stripes due to melting mostly distribute the corner and bottom of float glass. These curves of return flow are close. The stripes due to raw mixture mostly distribute the middle of float glass. These curves of return flow are diffuse around. The simulative results show the cooler has the function which uniform float glass fluid. In the simulation of this paper, the relationship is non-linear between the uniform function of glass fluid due to the cooler and depth that the cooler is placed under the glass fluid. The longitudinal uniformity function is from week to strong with depth addition. The uniformity function increases rapidly when depth is over 0.2 m. The uniformity function is optimal when depth is 0.3 m. Then the erosion to furnace wall and bottom increase intensely with depth addition.