Measurement method of outlet coal moisture of coal moisture control

A measurement method, a technology for exporting coal, applied in the direction of measuring devices, fuel oil testing, biological neural network models, etc., can solve the problem of affecting the coke oven coking quality of the coal humidity control system, the inability to achieve accurate online measurement, and large fluctuations in the humidity of the exported coal To achieve the effect of saving coking heat consumption, reducing gas loss and improving coke quality

Active Publication Date: 2018-05-08
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Coal moisture itself is a multi-parameter coupling, nonlinear and large time-delay distributed parameter system, and it is difficult to obtain accurate data using traditional modeling and measurement methods
In the current actual production process, although the humidity at the outlet of the rotary kiln has actually been measured by a variety of the most advanced direct measuring instruments in the world, such as: radar, ultrasonic, infrared, etc., due to the environment and medium at the outlet of the rotary kiln Due to the mixed media containing a large amount of water vapor and tar and other volatile components, accurate online measurement cannot be realized in the end; at present, the test results of the coal moisture at the outlet of the dryer in the laboratory lag behind the production by about 15 hours, and it is difficult to provide timely guidance production operation
When the coal moisture at the inlet of the dryer is stable, this time lag can also maintain the stability of the coal moisture at the outlet of the dryer. However, when the rainy weather in the Jiangnan area causes large fluctuations in the moisture in the open-pit coal yard, the humidity of the outlet coal fluctuates greatly. It affects the operation of the coal humidity control system and the coking quality of the coke oven

Method used

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  • Measurement method of outlet coal moisture of coal moisture control
  • Measurement method of outlet coal moisture of coal moisture control
  • Measurement method of outlet coal moisture of coal moisture control

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Embodiment Construction

[0045] A method for measuring coal humidity at the outlet of coal humidity adjustment proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.

[0046] A method for measuring coal humidity at a coal humidity control outlet, comprising the following steps,

[0047] S1: Collect data; collect the weight value of the cut coal, the humidity value of the inlet coal, the humidity value of the outlet coal, the weight value of the cut coal, and the temperature value of the steam outlet of the dryer;

[0048] Among them, the weight value of the cut coal, the humidity value ...

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Abstract

The invention discloses a measurement method of outlet coal moisture of coal moisture control. The method includes data collection, data screening, data processing and modeling, model inspection and moisture detection. According to the measurement method of the outlet coal moisture of the coal moisture control disclosed by the invention, an outlet coal moisture value can be obtained in real time through constructing a dryer steam outlet temperature value and outlet coal moisture value model and directly measuring a dryer steam outlet temperature value, and problems that accurate online measurement of the outlet coal moisture value cannot be realized, and time delaying of measurement in laboratories exists are solved.

Description

technical field [0001] The invention belongs to the field of measuring methods for coal humidity, and in particular relates to an online measuring method capable of rapidly detecting coal humidity at a coal humidity control outlet. Background technique [0002] Coal moisture itself is a multi-parameter coupling, nonlinear and large time-delay distributed parameter system, and it is difficult to obtain accurate data using traditional modeling and measurement methods. In the current actual production process, although the humidity at the outlet of the rotary kiln has actually been measured by a variety of the most advanced direct measuring instruments in the world, such as: radar, ultrasonic, infrared, etc., due to the environment and medium at the outlet of the rotary kiln Due to the mixed media containing a large amount of water vapor and tar and other volatile components, accurate online measurement cannot be realized in the end; at present, the test results of the coal moi...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06N3/02G01N5/00G01N33/22
CPCG06N3/02G01N5/00G01N33/222G06F18/214
Inventor 李晓斌孙海燕李祎琛
Owner SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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