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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 the center zone temperature of a blast furnace throat cross temperature measuring device. The method includes: collecting process variables of the blast furnace throat temperature related to the center zone temperature of the blast furnace throat cross temperature measuring device; and analyzing the collection process. Variables are preprocessed to remove noise peak jump data and high-frequency noise data; the central zone temperature prediction model is used to predict the central zone temperature of the blast furnace throat cross temperature measurement device. The system includes: acquisition module, preprocessing module, and prediction module. The present invention predicts the future temperature output of the central zone of the cross temperature measuring device through the historical data of the selected input and output of the central zone temperature prediction model, can accurately express the relationship between the temperature output and the control input, and can ensure that the cross temperature measurement Repair or damage of the temperature sensor in the center of the device will provide a basis for blast furnace operators to accurately judge and timely adjust the upper and lower systems of the blast furnace, thereby achieving stable, efficient, safe and smooth operation of the blast furnace.

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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