Electronic scale discharging system for controlling stability of liquid crystal glass batch component

Abstract

The invention discloses an electronic scale discharging system for controlling the stability of a liquid crystal glass batch component, comprising an electronic scale hopper, the bottom of the electronic scale hopper is a pneumatic discharging valve, the outer wall of the electronic scale hopper is provided with an air hammer, and the pneumatic discharging valve is controlled to be opened and closed respectively by an opening solenoid valve and a closing solenoid valve. The opening solenoid valve is connected with the air hammer, the opening solenoid valve is provided with a first air pipe anda second air pipe, the first air pipe is connected to the pneumatic discharging valve, and the second air pipe is connected to the air hammer. The closing solenoid valve is provided with a third airpipe, and the third air pipe is connected to the pneumatic discharging valve. The upper part of the inner wall of the electronic scale hopper is provided with an air nozzle, and the gas nozzle is connected to a fourth air pipe extending out of the electronic scale hopper, and the fourth air pipe communicates with the first air pipe. When the electronic scale hopper performs material discharging, the air nozzle blows air to the inner wall of the electronic scale hopper, and the air hammer strikes the electronic scale hopper, so that raw materials retained in the inner wall of the electronic scale hopper are synchronously discharged, thereby ensuring the compositions of each batch component in a liquid crystal glass batching process are stable and ensuring the quality of the liquid crystal substrate glass.

Description

technical field [0001] The invention relates to the technical field of glass manufacturing, in particular to an electronic scale discharge system for controlling the stability of liquid crystal glass batch components. Background technique [0002] The quality requirements of TFT-LCD liquid crystal substrate glass are much higher than those of other types of glass, which requires that the components of liquid crystal substrate glass batch materials should not fluctuate significantly, thereby affecting the purity and impurities of various raw materials in the batch materials. , Weighing accuracy, mixing uniformity, batch moisture, etc. all have very high requirements. [0003] The purity and impurities of various raw materials in the batch can be solved by purchasing high-quality chemical raw materials. As long as the sampling and analysis of raw materials are done in time and the storage and management of raw materials are in place, the purity and impurities of various raw ma...

AI Technical Summary

Problems solved by technology

Assume that the weight of a pair of batch materials is 500.0kg, and the amount of some raw materials is only about 2.0kg, but these raw materials with a small amount are not clean during the discharge process after the weighing is completed, and these materials are very viscous and fluid. Extremely poor raw materials will remain partly at the angle between the two inner walls of the electronic scale bucket

After a long period of observation, it was found that the instrument of the electronic scale weighing these less raw materials showed that the retained amount of raw materials reached more than 0.5kg, and formed a hard block; when these raw materials were retained more, During a random discharging process, these raw materials formed into relatively hard lumps will fall into the mixer after being struck by the air hammer on the outer wall of the electronic scale bucket, and this phenomenon will appear regularly (about every It will appear once every 1 month or so); these lumpy raw materials that randomly fall into the mixer cannot be mixed evenly with other powdery raw materials, and it also increases the amount of raw materials that are originally used in small amounts on these raw materials. And the actual deviation of raw materials with a small amount has reached about 25%; this has caused the instability and inhomogeneity of the composition of the TFT-LCD liquid crystal substrate glass batch, which in turn leads to large fluctuations in the chemical composition of the liquid crystal substrate glass , leading to a decrease in the quality of the liquid crystal substrate glass

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