Molten metal fluid temperature polymorphic online detection method and system

A technology for molten metal and fluid temperature, which is applied in the field of multi-state online detection method and system for molten metal fluid temperature, and can solve problems such as low precision

Pending Publication Date: 2022-03-04
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The multi-state online detection method and system for molten metal fluid temperature provided by the invention solves the technical problem of low precision of the existing multi-state online detection method for molten metal fluid temperature

Method used

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  • Molten metal fluid temperature polymorphic online detection method and system
  • Molten metal fluid temperature polymorphic online detection method and system
  • Molten metal fluid temperature polymorphic online detection method and system

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Embodiment 1

[0047] The multi-state online detection method for molten metal fluid temperature provided by Embodiment 1 of the present invention includes:

[0048] Step S101, acquiring the infrared thermal image of the molten metal fluid, and extracting the molten metal fluid area in the infrared thermal image of the molten metal fluid;

[0049] Step S102, dividing the dust interference state of the smelting site, and establishing a deep network model for identifying different interference states of the dust;

[0050] Step S103, based on the deep network model, using the infrared radiation temperature measurement mechanism to construct a multi-state detection model for the temperature of the oxide layer on the surface of the molten metal fluid under different dust interference states;

[0051] Step S104, according to the polymorphic detection model of the temperature of the molten metal fluid surface oxide layer, using the heat transfer relationship between the molten metal fluid and its s...

Embodiment 2

[0055] refer to figure 1 , figure 1 It is a schematic diagram of the installation of the molten metal fluid temperature multi-state online detection system according to the embodiment of the present invention. The system includes a molten metal fluid 1, a multi-state detection device 2, a bracket 3, an integrated cable 4, and a computer 5. figure 2 It is a flow chart of the embodiment of the present invention to realize the multi-state online detection method of molten metal fluid temperature, including the following steps:

[0056] (1) Use the multi-state detection system to obtain the infrared thermal image containing the molten metal fluid area, and automatically locate the molten metal fluid area;

[0057] (2) Divide the dust interference state of the smelting site, and establish a deep network model that takes the infrared thermal image of molten metal fluid as input to intelligently identify different interference states of dust;

[0058] (3) Considering the influence...

Embodiment 3

[0141] Present embodiment three takes certain ironworks 1050m 3 The blast furnace is used as a test platform, and the invented multi-state detection method and system for molten metal fluid temperature are applied to the online detection of molten iron flow temperature at the No. 1 taphole skimmer of the blast furnace. The multi-state detection system is installed behind the skimmer to obtain infrared thermal images of the molten iron flow after skimming. Figure 4 Shown is the temperature measurement result of the molten iron of the present invention in one tapping furnace. In order to illustrate the temperature measurement effect of the present invention, the temperature measurement results of the fast thermocouples at the same position and at the same time are used as reference values ​​to compare and analyze the accuracy of the multi-state temperature measurement results. Depend on Figure 4 As can be seen, the temperature measurement result of molten iron of the present...

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Abstract

The invention discloses a molten metal fluid temperature polymorphic on-line detection method and system, and the method comprises the steps: obtaining a molten metal fluid infrared thermal image, extracting a molten metal fluid region in the molten metal fluid infrared thermal image, dividing the dust interference state of a smelting site, and obtaining the molten metal fluid temperature polymorphic on-line detection result. Establishing a deep network model for identifying different interference states of dust, constructing a molten metal fluid surface oxide layer temperature polymorphic detection model under different dust interference states, and obtaining the temperature of the molten metal fluid according to the molten metal fluid surface oxide layer temperature polymorphic detection model; the technical problem that an existing molten metal fluid temperature polymorphic online detection method is low in precision is solved, the polymorphism of dust interference on a smelting site is considered, the interference state of dust is intelligently recognized, the influence of a molten metal fluid surface oxide layer is analyzed, the interference of dust on the smelting site to a non-contact infrared temperature measurement method is overcome, and the accuracy of the molten metal fluid temperature polymorphic online detection method is improved. And the multi-state on-line accurate detection of the temperature of the molten metal fluid is realized.

Description

technical field [0001] The invention mainly relates to the field of detection of blast furnace material level depth, in particular to a multi-state online detection method and system for molten metal fluid temperature. Background technique [0002] Molten metal is a high-temperature molten fluid formed after a complex smelting process of metal ore, including molten iron, molten steel, molten copper, molten aluminum, etc. The fluid temperature of molten metal is one of the important indicators reflecting the quality of molten metal and the energy consumption level of smelting, and it also provides key feedback information for the closed-loop regulation of the metal smelting process. Therefore, online detection of molten metal fluid temperature is a mandatory requirement in many smelting processes. [0003] According to whether the detection equipment is in contact with the molten metal fluid, the existing detection methods for the temperature of the molten metal fluid can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J5/48
CPCG01J5/48
Inventor 潘冬蒋朝辉许川龚芃旭桂卫华
Owner CENT SOUTH UNIV
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