Filling slurry for glass substrates, and preparation method and mixing device thereof

Abstract

The invention relates to a filling slurry for glass substrates, and a preparation method and a mixing device thereof. The slurry comprises, by mass, 75-80% of alumina, 8-10% of water, 4-6% of ammoniumpolyacrylate and 9-10% of carboxymethyl cellulose. The preparation method comprises the following steps: adjusting the pH value of the water to 10-11 by using ammonia water, sequentially adding the alumina, ammonium polyacrylate and carboxymethyl cellulose, and performing stirring for 24-30 h. A driving roll shaft and a driving roll of the mixing device are coaxially arranged, a driven roll shaftand a driven roll are coaxially arranged, the radius of the driving roll shaft is same to that of the driven roll shaft, the radius of the driving roll is same to that of the driven roll, and the driving roll shaft and the driven roll shaft are arranged in parallel and have the same height under the action of a limiter, so it is ensured that the driving roll shaft can drive the driven roll shaftto rotate under the action of a motor, a first conveyor belt and a second conveyor belt, a material barrel rotates synchronously with the driving roll and the driven roll by the inherent friction force, and the time requirement for mixing for 24-30 h is met.

Description

technical field [0001] The invention relates to the field of production of liquid crystal glass substrates, in particular to a glass substrate filling slurry, a preparation method and a mixing device thereof. Background technique [0002] The platinum channel is a crucial part in the production of liquid crystal glass substrates for TFT-LCD. Its main function is to clarify, homogenize and adjust the viscosity of the molten glass, improve the defects of the molten glass, and provide qualified and high-quality molten glass for the next process. [0003] During the installation process of the cooling section of the platinum channel with a length of 3.46m, there is inevitably a gap of 8-10mm between the peripheral alumina heating wire brick. Oxidation, on the other hand, affects the overall strength of the cooling section of the channel. Therefore, a ceramic slurry with the same composition as the heating wire brick is prepared and poured in the gap between the cooling section a...

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Problems solved by technology

[0003] During the installation process of the cooling section of the platinum channel with a length of 3.46m, there is inevitably a gap of 8-10mm between the peripheral alumina heating wire brick. Oxidation, on the other hand, affects the overall strength of the cooling section of the channel. Therefore, a ceramic slurry with the same composition as the heating wire brick is prepared and poured in the gap between the cooling section and the heating wire brick. After sintering at high temperature, it is combined with the heating wire brick and platinum. The integration of the cooling section of the channel is the key to solve this problem, but there is no such slurry in the prior art

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