An online determination method of sintered fuel ratio

Abstract

The invention provides a method for on-line judging of sintering fuel ratio. The method comprises the steps that a sintering fuel ratio judging knowledge base is established, a production rule expression and a relational multilist are used for storing in a combined mode, the images and the parameters of a sintering machine tail section are collected and stored, and the collected images of the sintering machine tail section are captured and extracted; a median filtering method and a critical average filtering method are used for conducting noise suppression treatment on the images, separation is conducted through a gray level image by using a threshold value, and the thickness of a red fire layer is obtained by using the average value of horizontal pixel positions of an upper boundary point and a lower boundary point as the absolute value of the difference; an expert system based on a production rule is used, proposition activation and knowledge reasoning are conducted on a parameter, and the ratio of the sintering fuel is judged. Therefore, the defect of manual observation is overcome, the problem that a ratio model can not judge the ratio of the sintering fuel in real time is solved, and on-line quantitive judgment of the ratio of the sintering fuel is achieved. The method is accurate and reliable, simple and easy to achieve, and capable of providing operation guide for the abnormal ratio of the fuel.

Description

technical field [0001] The invention belongs to the field of sintering technology, and in particular relates to a method for online judging the ratio of sintering fuel. Background technique [0002] In my country, more than 90% of the blast furnace charge is provided by sintering. It can be said that sintering plays a decisive role in my country's iron and steel industry. Sintering solid fuel is generally coke powder or coal powder. Under the premise of stabilizing the sintering process, reducing the proportion of sintering fuel as much as possible is an important way to save energy and stabilize production. The detection means of the sintering process is often the most backward in the steel production process, and many process conditions still need to be judged by operators. For the judgment of the proportion of sintered fuel, the current situation is that it is necessary to see the pyrotechnics go to the tail of the sintering machine to observe the red fire layer of the t...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem of inaccurate judgment caused by relying on manual naked eye observation; the second is to solve the problem that the sintered fuel ratio model cannot determine the size of the sintered fuel ratio in real time

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