Process control method for glass plate tempering process

A technology of process and control method, which is applied in glass tempering, glass manufacturing equipment, temperature control, etc., and can solve the problems of energy waste, product quality, cooling fan starting too early, too late, etc.
CN107500519BActive Publication Date: 2020-02-07洛阳兰迪智能科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
洛阳兰迪智能科技有限公司
Publication Date
2020-02-07

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Abstract

A control method for a tempering process of glass plates includes the steps of: 1) after a glass plate is delivered into a heating furnace, monitoring an operation parameter of a heating component by a monitoring unit in real time; 2) performing wave filter treatment to the operation parameter of the heating component; 3) after the wave filter treatment, sending the operation parameter of the heating component to a control unit, which then compares the received operation parameter with a preset threshold value; 4) when the operation parameter passes through an extreme value and then reaches the preset threshold value when changing again, sending a command by the control unit to control a cooling fan to start or switch the cooling fan from idle status into work status. In the method, the operation parameter of the heating component is subjected to real time monitoring after the glass is delivered into the furnace, thereby deciding the starting time of the cooling fan instead of estimating the starting time of the cooling fan by means of time as evidence in conventional methods.
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Description

technical field

[0001] The invention relates to a glass production process, in particular to a glass plate tempering process control method. Background technique

[0002] In the tempering process of the glass plate, firstly, the glass plate is heated to the softening temperature (for example, 600°C to 700°C) in the heating furnace, and then it is quickly taken out of the furnace and enters the tempering section, and the glass plate is cooled rapidly by means of fan blowing Finish tempering. Among them, in order to realize the rapid cooling of the glass plate, the fan must reach a certain speed and generate sufficient wind pressure before the glass plate is released from the furnace. In the prior art, the usual practice is: according to the remaining heating time in the heating process of the glass plate, turn on the fan a certain time in advance or control the fan to change from the idling state to the working state. This control method has the following disadvantages: Firs...

Claims

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