Device and method for detecting and controlling slag state of converter

A converter slag and state detection technology, applied in the direction of furnace control devices, furnaces, furnace components, etc., can solve problems such as noise blocking, inaccurate detection, and limited use range, so as to ensure detection accuracy, calculation accuracy, and reduce converter The effect of production costs

Active Publication Date: 2011-03-30
ANGANG STEEL CO LTD
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Problems solved by technology

However, since this method is an indirect detection method, and there are problems such as the noise being blocked when the converter smoke h

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  • Device and method for detecting and controlling slag state of converter
  • Device and method for detecting and controlling slag state of converter

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[0018] It can be seen from the drawings that the converter slag state detection and control device of the present invention is mainly composed of sampling device, mass spectrometer, mass spectrometer PLC, converter secondary computer, converter primary terminal, Ethernet, converter primary computer and oxygen lance system. The sampling device is connected to the mass spectrometer, the mass spectrometer is connected to the mass spectrometer PLC, the mass spectrometer PLC is connected to the secondary computer to form an industrial Ethernet, the secondary computer is connected to the primary computer, and the primary computer controls the oxygen lance system in real time to adjust the gun position and flow rate, and the converter The first level terminal displays real-time data and status for the whole process of detection and control. The specific structure and connection method are:

[0019] The mass spectrometer arranged above the converter boiler is connected to the converter f...

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Abstract

The invention relates to a device and a method for detecting and controlling a slag state of a converter. The method comprises the following steps of: combining a mass spectrometer PLC (Programmable logic Controller) and an oxygen lance real-time control program of a second-level computer of the converter into an industrial Ethernet, wherein the mass spectrometer PLC is connected with a gas sampling device; adding an oxygen lance real-time control communication data module in a first-level PLC (Programmable logic Controller) of the converter; and additionally arranging an oxygen lance real-time control button in an operation picture; controlling the oxygen lance position and the oxygen flow of an oxygen lance at real time according to data in the communication data module by the first-level PLC control program of the converter. The mass spectrometer can accurately analyze data and ensures detection accuracy. The invention has high measuring and controlling accuracy, stops the phenomena of running slag and drying, has reasonable programming design, realizes real-time quantitative survey, controls a slag melting state of the converter, increases the yield and the production efficiency of molten steel of the converter, reduces the workload of operating workers for cleaning the slag, avoids the injury of personnel and equipment for running the slag and reduces the production cost of the converter.

Description

technical field [0001] The invention belongs to the field of automatic control, and in particular relates to a monitoring control device and a detection control method for the state of oxygen top-blown converter slag. Background technique [0002] Due to its high production efficiency and low cost, the oxygen top-blown converter has become a major steelmaking equipment. In the oxygen lance top-blowing steelmaking process, the slag state and oxygen lance control are the core technologies of the steelmaking operation. At present, the method for judging the state of the slag is generally to make judgments based on experience by workers observing the furnace mouth flame. Due to the different personal experience and mental state of the operators, the ability to control slag running and dry back is also different. Moreover, the shape of the flame is greatly affected by the fan, feeding, bottom blowing, furnace shape, etc., so it is difficult to accurately control the melting sta...

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Application Information

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IPC IPC(8): C21C5/46C21C5/32F27D19/00
Inventor 翟宝鹏金百刚王军王金辉魏春新贾春辉许化为
Owner ANGANG STEEL CO LTD
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