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A single tube type converter bottom blowing gas flow automatic control system and control method
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An automatic control system, control system technology, applied in the direction of manufacturing converters, etc., can solve problems such as untimely, achieve the effects of clearing blockage, convenient use, and ingenious design
Active Publication Date: 2017-10-27
SHANGHAI MEISHAN IRON & STEEL CO LTD
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Embodiment 1
[0026] see figure 1 , an automatic control method for the automatic control system of the bottom-blown gas flow of a single-tube converter, assuming that a converter adopts a single-tube bottom-blown, with 12 single tubes, the specific steps are as follows,
[0027] 1. The PLC bottom blowing data real-time acquisition module cycle, the time is 10 seconds, collects the real-time flow and set flow of each bottom blowing branch pipe of the converter;
[0028] 2. The PLC communication module uploads the real-time flow rate and set flow rate of each bottom blowing branch pipe of the converter to the converter L2 control system through the Ethernet network;
[0029] 3. After the converter L2 control system receives the data uploaded by the PLC communication module, it judges the current furnace state. If the furnace state is in the blowing state or the slag splashing protection state, the bottom blowing gas flow rate is the largest at this time, and the data is saved to Converter L...
Embodiment 2
[0037] Example 2: see figure 1 ,
[0038] An automatic control method for an automatic control system of the bottom blowing gas flow of a single-tube converter, assuming that a converter adopts a single-tube bottom blowing and has 12 single tubes.
[0039] 1. PLC bottom blowing data real-time acquisition module cycle, the cycle is 10 seconds, to collect the real-time flow and set flow of each bottom blowing branch pipe of the converter;
[0040] 2. The PLC communication module uploads the real-time flow rate and set flow rate of each bottom blowing branch pipe of the converter to the converter L2 control system through the Ethernet network;
[0041] 3. After the converter L2 control system receives the data uploaded by the PLC communication module, it judges the current furnace state. If the furnace state is in the blowing state or the slag splashing protection state, the bottom blowing gas flow rate is the largest at this time, and the data is saved to Converter L2 system d...
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Abstract
The invention relates to an automatic control system for the single-branch-pipe type converter bottom blowing gas flow. The automatic control system is characterized in that the control system comprises a converter bottom blowing programmable logic controller (PLC) control system and a converter L2 control system, namely a converter process control system; the converter bottom blowing PLC control system comprises a PLC bottom blowing data real-time collection module, a PLC bottom blowing control and regulation module and a PLC communication module; the converter L2 control system comprises an L2 data collection module, an L2 regulating valve opening degree calculation module and an L2 communication module; the PLC bottom blowing data real-time collection module is used for periodically collecting real-time data of converter bottom blowing; the PLC bottom blowing control and regulation module is used for regulating the opening degrees of bottom blowing branch pipe regulating valves; the PLC communication module is used for communication between the converter bottom blowing PLC control system and the converter L2 control system; the L2 data collection module is used for collecting relevant data of an L2, and the relevant data are used for calculating the opening degrees of regulating valves through the L2 regulating valve opening degree calculation module; the L2 regulating valve opening degree calculation module is used for calculating the opening degrees of the branch pipe gas flow regulating valves; the L2 communication module is used for communication between the converter L2 control system and the converter bottom blowing PLC control system.
Description
technical field [0001] The invention relates to a control system and method, in particular to an automatic control system and control method for bottom-blown gas flow in a single-tube converter. Background technique [0002] There are two kinds of diffused air bricks and single pipe air bricks commonly used in converter bottom blowing. The diffused air brick is in the shape of a sponge, and a breathable brick is distributed with several small air holes, and the gas pressure passing through the air brick is small; the single-branch type air brick has only one air hole, and the gas pressure through the air brick is large. For single-pipe venting bricks, during the converter smelting process, the vent hole is prone to blockage. When this happens, the operator needs to monitor the gas flow and pressure of the branch pipe in real time, and manually adjust the opening of the flow regulating valve to ensure ventilation. After the brick blockage is cleared, the opening of the flow ...
Claims
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