Dust extraction and dust transporting system for dust burners in the EC:
11 fans with a total power of 380KW,
rotation control of all fans and scrolls,
analog control of transport air flow velocity in pipes,
3 filters with pressure measurement,
1 dust container with layer measurement and a rotary scraper with hydraulic drive and a wiping screw on the inverter,
two-directional screw conveyors with clogging control,
transport of dust from tanks to EC by means of two fans operated in parallel regulated by inverters,
dust supply and control of 2 dust burners in two EC furnaces,
GRECON spark extinguishing system,
6 ppo flaps,
dusting operation in 2- WINTER-SUMMER modes (with or without heat recovery).
Scope of work:
design,
software,
commissioning
Used PLC controllers, terminals, communication, visualization systems:
1 S7-315 2DP central driver,
distributed structure of inputs / outputs – 4 stations on PROFIBUS DP,
4 MP270 touch graphic terminals on the PROFIBUS DP network,
communication – PROFIBUS DP,
2 stations with a dust collection and visualization system for the dust and WinCC burner operation.
List of controlled and measuring devices, control devices:
210 binary signals,
31 analog signals,
5 motors with adjustable speed inverter,
3 right-left engines,
9 motors with softstarter or D / Y start,
7 level measurements,
4 motors with direct start,\
3 pressure measurement systems,
3 air flow speed measurement systems,
2 temperature measurement systems in furnaces,
9 current measurement systems,
cooperation with the Grecon fire brigade.
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