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A method and system for predicting the center zone temperature of a blast furnace throat cross temperature measuring device

A technology for blast furnace throat and cross temperature measurement, which is applied to inspection devices and complex mathematical operations, can solve problems such as difficulties, time lags, and inability to make timely and correct adjustments, achieving high precision and simple methods

Active Publication Date: 2018-10-23
NORTHEASTERN UNIV LIAONING
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Problems solved by technology

[0004] However, the temperature in the center of the blast furnace cross temperature measuring device is higher than other temperature measuring points, the sensor is easily damaged and the replacement cycle is long, so it is impossible to monitor the gas temperature in the furnace in time, which affects the blast furnace operator's judgment of the gas distribution, resulting in the inability to timely and accurately Adjust the blast furnace operation system such as material distribution and blast, and then affect the smooth operation of the blast furnace
On the one hand, due to the complex, multi-variable and multi-time-lag characteristics of the blast furnace, it is very difficult to establish an accurate temperature mechanism model of the cross-measuring point

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  • A method and system for predicting the center zone temperature of a blast furnace throat cross temperature measuring device
  • A method and system for predicting the center zone temperature of a blast furnace throat cross temperature measuring device
  • A method and system for predicting the center zone temperature of a blast furnace throat cross temperature measuring device

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Embodiment Construction

[0071] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0072] Such as figure 1 As shown, the blast furnace throat cross temperature measuring device is installed on the blast furnace throat or the cover in the form of a positive cross, including 4 cross temperature measuring guns, which are respectively installed in the four directions of the blast furnace throat in the northwest, southwest, southeast, and northeast. The serial numbers of the thermocouples on the cross temperature measuring gun are arranged as follows: from northwest to southeast, they are numbered 1 to 10; from southwest to northeast, they are numbered 11 to 21. The numbers of the cross temperature measuring guns are No. 1, No. 2, No. 3, and No. 4 clockwise from the southeast direction to the northeast direction. There are long and short cross temperature measuring guns, of which the northwest direction (No. 3) is...

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Abstract

The invention provides a method and system for predicting a central zone temperature of a cross temperature measurement device of a blast furnace throat. The method comprises the steps that a course variable of a blast furnace throat temperature related to the central zone temperature of the cross temperature measurement device of the blast furnace throat is collected; the collected course variable is pre-processed, and noise peak jumping data and high-frequency noise data are removed; and a central zone temperature prediction model is used to predict the central zone temperature of the cross temperature measurement device of the blast furnace throat. The system comprises a collection module, a pre-processing module and a prediction module. According to the invention, input and output historical data selected by the prediction model of the central zone temperature is used to predict future central zone temperature output of the cross temperature measurement device; relations between the temperature output and control input can be expressed accurately; when a central temperature sensor of the cross temperature measurement device needs to be repaired or is damaged, a basis can be provided for a blast furnace operator to make accurate judgments and adjust systems of upper and lower parts of a blast furnace in time; and further, steady, efficiency and safe running of the blast furnace can be implemented.

Description

technical field [0001] The invention belongs to the technical field of blast furnace temperature monitoring, in particular to a temperature prediction method and system for a center zone of a blast furnace throat cross temperature measuring device. Background technique [0002] As the most important basic raw material used by human society and the functional material with the largest annual output, steel is widely used in various industries such as transportation, machinery manufacturing, construction and military development. Blast furnace ironmaking is an important process in the iron and steel industry. Ensuring the high efficiency, safety and stability of blast furnace ironmaking plays an important role in the sustainable and healthy development of the iron and steel industry and in reducing energy consumption. Since blast furnace smelting is a complex physical and chemical reaction process with various material forms, realizing its automatic control has always been a sc...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/15C21B7/24
CPCC21B7/24G06F17/15
Inventor 周平刘记平尤磊王宏
Owner NORTHEASTERN UNIV LIAONING
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