Electronic control of oxygen powder spraying system for metallurgy;
(electric furnace, converter, refining furnace, LF,AOD,VOD,RH furnace) oxygen powder spraying system electronic control system design, supporting, upgrade...
Electrical control system
It is mainly composed of hardware part and software part.
Hardware section
It is mainly composed of industrial computer and PLC; The software part is mainly the control program and HMI screen. The industrial computer monitors the field parameters through the screen in the control room, and the PLC is used to complete the control of the field parameters.
1) Industrial control computer
Choose Taiwan Advantech industrial computer (IPC-610H, P4 3.0G KSD1G, MT160G, 530 network card, DVD drive, Logitech photoelectric kit, 2 serial ports, 2USB)
The monitor adopts 22 inch Samsung LCD monitor.
2) PLC and its component modules
PLC adopts German Siemens S7-1500 series.
Required digital input and output modules, analog input and output modules.
According to the site situation, the remote I/O module ET200M is used to realize the control of the valve station, eliminating a large number of cables and saving costs for customers.
3) PLC cabinet
Siemens standard control cabinets are adopted.
4) Operation station
5) On-site distribution box
Software section
1.) Main functions of S7 PLC software
Calculate the standard flow rate of oxygen and natural gas at different pressures and temperatures
Cumulative consumption and total amount per line, calculated in Nm³
Control of oxygen flow in each line (closed-loop control)
Manual or automatic mode to control the mode of multi-kinetic furnace wall oxygen gun
Manual operation: manually change the target flow rate (8 operating modes or more)
Automatic operation: for automatic control of the operation of the multi-function furnace wall oxygen gun (change of starting set point) and the development of standard operating procedures
The automatic control program controls the automatic operation of the oxygen gun system, and does not require the operator to intervene in the operation of the oxygen gun. It reduces the workload of the operator and ensures the stable operation of the oxygen gun system
2.) HMI HMI software
Control the operation interface of the multi-function furnace wall oxygen gun
Display actual furnace conditions
Overview of oxygen valve stations
Flow value trend interface (current and historical traffic)
Flow value parameter setting interface, running charts and total parameters
Alarm management system
Total consumption reporting system per furnace of steel smelting
Input/output overview and PLC interface
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