The invention discloses a
blast furnace smelting expert system built based on a
pattern recognition technology, which comprises a
server, an operator
workstation, six sets of PLCs (programmable logic controllers) (respectively used for material preparation below grooves,
material distribution at the top of a
blast furnace, water granulated
slag control, dust removal control,
coal powder injection control and water
system control), a
distributed control system, an IPC (industrial
personal computer) for communication, a state classification module, a state diagnosis module, a state evaluation module, a state adjusting module and a state display module, wherein the
server is provided with a
database, the state classification module, the state diagnosis module, the state evaluation module and the state adjusting module are arranged in the
server with the
database, and the state display module is arranged in the operator
workstation. Meanwhile, the invention also discloses a method for building a
blast furnace smelting expert system based on a
pattern recognition technology, which comprises the following steps of
data access, state classification, state diagnosis, state evaluation, state adjustment, state display and execution. The
system and method disclosed by the invention have the characteristics of standard and
objective evaluation, good integrated performance, rich
knowledge base and real-time updating, and can be widely applied to the technical field of blast furnace
process control.