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Method for controlling liquid level through probe in kiln

A liquid level control and probe technology, which is applied in the direction of manufacturing tools, glass furnace equipment, glass manufacturing equipment, etc., can solve the problems of glass liquid level automatic control kiln working condition stability impact, false detection signal, etc., to achieve stable control, Guaranteed the effect of stable control

Inactive Publication Date: 2005-10-26
CAIHONG GRP ELECTRONICS CO LTD
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Problems solved by technology

Regarding the detection of liquid level, people used to use the cobalt 60 nuclear liquid level detection system. Due to the existence of factors such as installation position, detection accuracy, range range and possible personal injury, the nuclear liquid level detection system was cancelled, and the more familiar one is still used. The platinum probe liquid level detection system of the company, through the transformation, the probe liquid level control system has been put into operation, but the probe liquid level detection system has inherent sticky material on the probe contact head during the intermittent detection process of the probe up and down. And glass wire drawing, may cause false detection signal, cause greater misoperation of automatic feeding system, and have a great impact on the automatic control of glass liquid level and the stability of kiln working conditions, so this situation has become a liquid Bit control system can't break into automatic fatal flaw
The original probe liquid level control system filters the probe detection signal and directly compares it with the set value of the liquid level control. Therefore, due to the existence of false signals, there is a certain risk in the automatic control process

Method used

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  • Method for controlling liquid level through probe in kiln
  • Method for controlling liquid level through probe in kiln
  • Method for controlling liquid level through probe in kiln

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Embodiment Construction

[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0010] see figure 1 , 2, where the liquid level reference value P(0) is the effective value confirmed by the control system, the liquid height values ​​P(1), P(2) are the subsequent continuous detection sampling values, and the ±0.5mm in the coordinates is the glass The deviation limit between the process detection value and the set value in the liquid level control system is the control upper and lower limits. It can be seen from the diagram figure 1 The liquid level height value P(1) in figure 2 The liquid level height value P(2) in is a false signal point that needs to be eliminated in the present invention. In the probe liquid level control system, if the deviation between the actual detection value and the set value is within ±0.5mm, the target is considered to be under control; The control loop is adjusted normally, and the control system will iden...

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Abstract

The present invention relates to a kiln furnace probe liquid level control method. Said method mainly utilizes the comparison of continuously-detected sampling valves with system acknowledge effective value to implement liquid level control. Said invention also provides the concrete steps of said composition method. The equipment for implementing said method includes a control system, a liquid level regulation control loop, a material-adding frequency changer and a screw material-adding machine. Besides, said invention also provides its application method and application range.

Description

technical field [0001] The invention relates to a method for controlling the liquid level of a kiln, in particular to a method for controlling the liquid level of a kiln needle control. Background technique [0002] In the control of glass furnaces, the stable control of liquid level and feeding system has always been the most important and critical control factor in various glass manufacturing industries, and it is one of the three major elements in glass furnace control: temperature, furnace pressure and liquid level one. Regarding the detection of liquid level, people used to use the cobalt 60 nuclear liquid level detection system. Due to the existence of factors such as installation position, detection accuracy, range range and possible personal injury, the nuclear liquid level detection system was cancelled, and the more familiar one is still used. The platinum probe liquid level detection system of the company, through the transformation, the probe liquid level contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B5/16
CPCY02P40/57
Inventor 高秋孝
Owner CAIHONG GRP ELECTRONICS CO LTD
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