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Automatic control system and automatic control method for feeding alloy into converter

An automatic control system, control system technology, applied in the field of control, automatic control of converter alloys, can solve the problem of high cost

Inactive Publication Date: 2018-09-07
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure that the composition of molten steel is qualified, manual control is added according to the upper limit of the standard, and the cost is high

Method used

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  • Automatic control system and automatic control method for feeding alloy into converter
  • Automatic control system and automatic control method for feeding alloy into converter
  • Automatic control system and automatic control method for feeding alloy into converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Embodiment 1: see figure 1 , figure 2 , a converter alloy input automatic control system, the control system includes a converter alloy input amount calculation system, a converter alloy charging PLC control system and a converter L2 process control system; the converter alloy input amount calculation system includes an alloy calculation module and a communication module ; The alloy calculation module is used for calculating and checking the amount of alloy input; the communication module is used for data communication required for calculation with the L2 control system;

[0074] The converter alloy charging PLC control system includes a PLC on-site data acquisition module, a PLC alloy feeding and preparation control module and a PLC communication module; the PLC on-site data acquisition module is used to collect on-site actual production status information and upload it to the L2 process control system; The PLC alloy feeding and preparation control module is used to...

Embodiment 2

[0075] Example 2: see figure 1 , figure 2 , the converter alloy automatic control method, the control method is as follows:

[0076] (1) The PLC on-site data acquisition module collects the actual production status information of the converter site. The production status information mainly includes: start of furnace, scrap steel collision, molten iron loading, blowing start, sub-lance measurement, blowing end, tapping Start, end of tapping, start of slag splashing, end of slag splashing and end of blowing;

[0077] (2) The PLC communication module uploads the information such as the actual production status of the converter site collected by the PLC site data acquisition module to the L2 control system;

[0078] (3) The L2 control system judges the current furnace state according to the data uploaded by the PLC communication module, and starts the alloy calculation module respectively when the furnace starts and the molten iron is loaded;

[0079] (4) When the alloy calcu...

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Abstract

The invention relates to an automatic control system and an automatic control method for feeding an alloy into a converter. The automatic control system comprises a converter alloy feeding amount calculation system, a converter alloy feeding PLC control system and a converter L2 process control system, wherein the converter alloy feeding amount calculation system comprises an alloy calculation module and a communication module, the alloy calculation module is used for alloy feeding amount calculation and calculation checking, and the communication module and the L2 control system perform datacommunication required by calculation. According to the present invention, the whole system is ingeniously designed; and with the method, the automatic calculation, the automatic material preparationand the automatic feeding of the alloy are achieved, the manual intervention is not required, the on-site alloy feeding can be automatically controlled, the influence on the molten steel quality and the yield during the converter tapping deoxidation alloying are simultaneously considered, and the alloy feeding stability can be ensured.

Description

technical field [0001] The invention relates to a control method, in particular to an automatic control method for adding a converter alloy, and belongs to the technical field of converter smelting. Background technique [0002] Alloys are mainly used for deoxidation and composition adjustment during the tapping process of the converter. The type, amount and order of addition of alloys are very important. Depending on the type of smelted steel, the requirements for addition of alloys are also different. Restricted by many conditions such as the principle of adjustment and distribution of alloy components in tapping deoxidation alloying and refining outside the furnace, the factors affecting the yield of alloys in each process are different, and the external factors such as the alloy itself and the condition of the ladle, the alloy input control process is generally limited. The operator prepares and feeds the corresponding alloy materials for different steel types according ...

Claims

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Application Information

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IPC IPC(8): C21C5/28C21C7/06G05B19/05
CPCC21C5/28C21C7/06G05B19/054Y02P10/25
Inventor 管萍虞大俊朱倓马艳王绪国张明明
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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