Control method of vertical stirring device of float glass factory

A technology of vertical stirring and control methods, applied in chemical instruments and methods, mixing methods, electrical program control, etc., can solve the problems of shortened life of agitators, ineffectiveness, slow stirring speed of vertical agitators, etc., and achieves a safety factor. High, accident avoidance, high precision effect

Active Publication Date: 2013-04-24
CHINA TRIUMPH INT ENG
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] Since the vertical stirrer is a completely different mechanical structure from the ordinary horizontal stirrer, the control method is also required to be brand new. Specifically, the stirring speed of the vertical stirrer should not be too slow. If it is too slow, the homogenization of the glass liquid will not be obvious. , it will not work; if it is too fast, the life of the agitator will be greatly reduced, and at the same time, the rotation direction and precision of the agitator have special requirements in the process

Method used

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  • Control method of vertical stirring device of float glass factory

Examples

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Effect test

Embodiment 1

[0033] In this embodiment, a vertical agitator is included. The lower part of the agitator is equipped with 2-5 pairs of agitating impellers, and the upper part of the agitating impeller is provided with a branch drive motor, a branch high temperature resistant safety connector, a branch changeover switch, and a branch protection thermal Relays, branch contactors, start transfer switches, inverters, inverter reactors, main circuit contactors and other components.

[0034] The circuit connections of its components are as follows: figure 1 As shown, the number of control branches is determined according to the number of stirring impellers. In each control branch, the branch transmission motor, branch high-temperature safety connector, branch transfer switch, and branch protection thermal relay are in a series structure. Specific examples Say, one end of the No. 2 transmission motor is connected to the No. 2 stirring impeller, the other end of the No. 2 transmission motor is conn...

Embodiment 2

[0045] This control principle can also realize the remote start and stop of the mixer, that is, the main circuit is also equipped with a remote start switch and a remote start signal interface to realize the functions of remote control start and stop and speed adjustment.

[0046] The specific operation steps are as follows:

[0047] 1. Debugging. Set up and debug the system before baking the kiln, check the initial position of the mixing impeller of the vertical agitator and the rotation direction of the motor, so that the rotation direction of the mixing impeller and the motor is correct and meet the process requirements;

[0048] 2. Pre-preparation. After the glass is completely melted into a liquid state at the end of the roasting furnace, the control system turns to the working state, switch the start switch SF01 to the remote position, manually operate the main circuit breaker switch QL0 to close, manually operate the button SF11 to close, and the main circuit of the in...

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Abstract

The invention relates to the field of electrical control technology, in particular to a control method of a vertical stirring device of a float glass factory. The control method is characterized in that a frequency changer is arranged on the vertical stirring device, and adjustment of stirring speed is achieved through changes of frequency of the frequency changer. A change-over switch is arranged in the control circuit of each stirring impeller, and the rotation direction of the stirring impellers is adjusted through changes of phase sequence of a three-phase power supply. A main starting and stopping button is arranged, a site emergency stopping button is independently arranged on every control circuit, a high-temperature resisting safe connecting device is arranged on a motor of each stirring impeller so as to facilitate power supply cutting off at the maintenance time of the stirring impellers. The control method fills the blank in the prior art, and each stirring impeller is provided with an independent control circuit and a change-over switch, and therefore the speed and the rotation direction of each impeller are independently controlled, and adjustment accuracy is high. To avoid secondary accidents, each stirring motor is provided with a high temperature resisting safe connecting device, and the safety coefficient is high.

Description

[technical field] [0001] The invention relates to the technical field of mechanical and electrical control, in particular to a control method for a vertical stirrer in a float glass factory. [Background technique] [0002] At present, most float glass factories still use ordinary horizontal stirrers. As the scale of float glass factories becomes larger and the requirements for product quality become higher and higher, ordinary horizontal stirrers can no longer meet the requirements of uniform melting of glass solution. sexual demands. [0003] Therefore, the vertical glass molten agitator began to be applied in the float glass factory. The vertical glass agitator is a kind of equipment that plays a stirring role in the float glass production process and improves the melting uniformity of the glass solution. It is a forced homogenization of the glass liquid. The special equipment of the agitator can eliminate or reduce the defects that cannot be overcome by natural homogeniz...

Claims

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Application Information

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IPC IPC(8): G05B19/04B01F3/00B01F23/00
Inventor 田万春王建青张卫陈晓江
Owner CHINA TRIUMPH INT ENG
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