Sonar slagging analysis apparatus and method based on flue sound picking

A technology of an analysis device and an analysis method, applied in the direction of manufacturing converters, etc., can solve the problem that the slag process cannot completely reach a stable state, and achieve the effects of reducing production costs, reducing metal loss, and improving furnace lining life.

Inactive Publication Date: 2012-07-11
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the different work experience of each person and the limitation of the stability of the working state, the slag removal process of steelmaking cannot completely reach a steady state.

Method used

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  • Sonar slagging analysis apparatus and method based on flue sound picking
  • Sonar slagging analysis apparatus and method based on flue sound picking
  • Sonar slagging analysis apparatus and method based on flue sound picking

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see figure 1 A sonar slag analysis device based on flue sound acquisition provided by an embodiment of the present invention includes a noise collection device, an analog quantity collector, and an analyzer. The noise collecting device is arranged at the sampling port of the platform flue, and collects noise information and transmits the noise information to the analog quantity collector. The analog quantity collector collects oxygen lance height information, oxygen flow information and receives the noise information collected by the noise acquisition device, and sends the oxygen lance height information, oxygen flow information and noise information to the analyzer; the analyzer receives The oxygen lance height information, oxygen flow information and noise information are used to analyze the slag formation. An analysis screen is generated for each furnace. The sonar slag analysis device also includes a sound processor, which is connected between the noise collection...

Embodiment 2

[0026] see figure 1 In addition to the device described in Embodiment 1, a sonar slag analysis device based on flue sound acquisition provided by the embodiment of the present invention also includes a preamplifier, a current loop and a switch value collector. The pre-amplifier is set between the noise collection device and the sound processor, and is used to amplify the noise information, reduce the impedance for remote transmission, and remove other interference and stray noise signals on site to improve signal quality. The current loop is connected between the analog quantity collector and the analyzer, and is used for converting the noise signal into a digital signal. The switch value collector is connected with the analyzer, and controls the analyzer to end the current slag analysis after collecting the tapping signal.

Embodiment 3

[0028] An embodiment of the present invention provides a sonar slag analysis method based on flue sound acquisition, including:

[0029] Step 10, collecting the noise information of the flue sampling port of the platform.

[0030] Step 20, collect oxygen lance height information and oxygen flow information.

[0031] Step 30, analyzing the slagging situation according to the noise information, the oxygen lance height information and the oxygen flow information.

[0032] Step 40, making a judgment according to the slag analysis result, and adjusting the height of the oxygen lance and the oxygen flow rate according to the judgment result.

[0033] The above steps can be realized by the sonar slag analysis device based on flue sound acquisition provided in Embodiments 1 and 2, and will not be repeated here.

[0034] The sonar slag analysis device and method based on flue sound acquisition provided by the present invention can detect and process the noise of the slagging process ...

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Abstract

The invention provides a sonar slagging analysis apparatus based on flue sound picking. The apparatus comprises a noise acquisition device, an analog quantity gatherer and an analyzer. The invention also provides a sonar slagging analysis method based on flue sound picking. The method comprises the following steps: acquiring noise information at a platform flue sampling opening; acquiring oxygen lance height information and oxygen flow information; and analyzing slagging situation according to the noise information, the oxygen lance height information and the oxygen flow information. The sonar slagging analysis apparatus and the sonar slagging analysis method based on flue sound picking provided in the invention can detect and process noise generated in the process of slagging of an oxygen converter, monitor the situation of changing of slag, display a variation curve of sound intensity in the slagging process and guidance information and operation records related to operation on a color monitor of a computer, forecast abnormal furnace conditions like splashing, redrying, etc., and provide visual and striking scientific guidance and management information for operation personnel in front of the converter.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a sonar slag analysis device and method based on flue sound acquisition. Background technique [0002] With the soaring price of steel smelting raw materials, the shortage of energy materials, the continuous improvement of environmental protection requirements and the continuous innovation of smelting technology, the competition of iron and steel enterprises is becoming increasingly fierce. In this situation, environmental protection, energy saving and cost are particularly important. The converter steelmaking process requires slagging, and the slagging agent reacts with molten steel to remove harmful elements and refine qualified molten steel. Due to the difficulty in detecting process parameters during the smelting process, it is difficult to control abnormal conditions such as splashing and back-drying. For a long time, it has relied on the experience of steelmakers to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46
Inventor 魏钢闫占辉李金柱张丙龙张本昕刘瑞林杨林史良袁天祥田刚欧阳孔宝
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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