Automation Control Technology

CISDI Automation is a division of CISDI Engineering Co., Ltd. that deals in automation system business covering LV/HV power transmission/distribution, electric drive, automation detecting instrument, ITV, communication, railway signal, process computer, project design of MES and ERP, control software development, hardware system integration, etc. Integration of design and system for whole process and multiple disciplines from concept design, equipment design, workshop drawing, software programming to commissioning on site has been realized. Over the previous years CISDI Automation has served more than one thousand projects for hundreds of clients in China and abroad by offering them consulting, design, EPC, equipment integration, accomplished research for many national key projects and won many prizes of state, ministry and province level.

CISDI is successful in providing clients with plant-wide power supply & distribution, electric drive, instrumentation & automation control, telecom, signaling, and computer control software technological development & hardware system integration.

·Individual or Complete Automation Control Systems (PLC & DCS) of process units

·BF Expert System

·Production Control Model

·MES

·ERP

·Control Software Development

·Control System Integration

Automation Control Technologies for Ironmaking

CISDI Automation has provided advanced automation control systems for a number of blast furnaces, realizing integration of EAI (electrical, Automation and Instrumentation) control system as well as integration of management & control system. Its control system and software designing not only takes a leading position in China, but also reaches the world advanced level.

Main Mathematical Models:

  • BF condition evaluation GO-STOP model
  • Hearth corrosion model
  • Bell-less top distribution model
  • Flow setup model for HS combustion gas
  • Profile data processing model
  • Furnace heat index & hot metal forecasting model

Models above at have reached advanced level; at present we are making great efforts in developing “BF Expert System”.

Main Control Functions:

  • BF stockhouse system control
  • BF charging system control
  • BF top & proper system control
  • Gas dedusting & gas cleaning system control
  • Pulverized coal preparation & injection system control

Automation Control Technologies for Steelmaking

CISDI Automation has taken charge of the design and start up of automation control system for a number of main smelting process lines from hot metal pre-treatment to converter, LF, RH, slab & billet CCM, etc., realizing integration of EAI (electrical, Automation and Instrumentation) in control system, with control functions reaching advanced level in China and even up to international level.

Automation Control Technologies for Hot Metal Pre-treatment

Main Mathematical Models:

Desulfurization calculation model for hot metal preteatment

Main Control Functions:

  • Desulfurization lance, temperature measuring & sampling lance, lifting control of splash-proof hood
  • Skimmer, powder injection system, dust removal valve, shut-off valve control
  • Hot metal temperature, nitrogen flow at gas holder inlet, nitrogen pressure measurement
  • Oxygen concentration monitor & alarm in magnesium powder bin
  • Injection vessel weighing

Automation Control Technologies for Converter

Main Control Functions:

  • Predication calculation model
  • Main raw material calculation model
  • Auxiliary raw material calculation model
  • Static calculation model
  • Bottom blowing model
  • Calculation model for end point control
  • Reblow calculation model
  • Deoxidation & alloying calculation model

Automation Control Technologies for LF

Main Mathematical Models:

  • Deoxidation calculation model
  • Desulfurization and slag forming calculation model
  • Calculation model for hot metal composition adjustment
  • Calculation model for argon blowing & stirring
  • Calculation model for hot metal heating up

Automation Control Technique for Slab CCM

Main Mathematical Models:

  • Dynamic control model for secondary cooling water
  • Optimized cutting model
  • Quality evaluation model
  • Dynamic soft reduction model

ROLLING MILL CONTROL TECHNOLOGY

CISDI Automation boasts rich experience and leading technologies in rolling mills and is able to supply clients with modern automation control system for hot strip mill, steckel mill, plate mill, reversing cold mill and finishing line.

In recent years, CISDI Automation has developed business not only in design, but also in equipment integration of EAI system, EPC contracting as well as technology contractor to take overall technical responsibility for hot strip/plate mill, cold strip mill, skin-pass and dividing line, pickling line, single stand reversing cold mill, hot galvanizing line.

Continuous hot rolling mill

Including EAI equipment integration and application technology integration of hot rolling mill; application software programming and debugging of MES, L2, L1 automation systems.

The main automation control models include：

  • Pacing control model;
  • Roughing stand setup model;
  • Width control model;
  • Finishing stand setup model;
  • Profile control model;
  • Laminar cooling model;
  • Coiler setup model.
  • Single Stand Reversing Cold Rolling Mill (CRM)

The main automation control models include：

  • Mill setup model;
  • Profile and flatness calculation model;
  • Adaptive model.

Continuous Pickling Line (CPL)

  • Speed and tension control;
  • Looper control;
  • Strip sag control in pickling section;
  • Pickling temperature and acid concentration control;
  • Hydraulic screw-down and gap position control for skinpass mill;
  • Logic sequence control;

Continuous Pickling Line Coupled with Cold Tandem Mill (CPL-CTM)

  • Speed and tension control;
  • Looper control;
  • Strip sag control in pickling section;
  • Pickling temperature and acid concentration control;
  • Hydraulic screwdown and gap position control for skinpass mill;
  • Logic sequence control;

Continuous Galvanizing Line (CGL)

  • Master speed control;
  • Tension control;
  • Annealing furnace setup and temperature control;
  • Coil & weld position tracking;
  • Skin-pass mill, tension leveler control

Section Mills

  • Cascade speed control;
  • Interstand micro-tension control;
  • Interstand looper control;
  • Flying shear control;
  • Hot saw control;
  • Cold bed control;
  • Rolling piece tracking and monitoring.

MES System

CISDI Automation provides clients with customized and complete MES system as per process requirements, with core functions such as ERP’s order control, quality control, material demand, production plan control, as well as other functions like operation scheduling control, production process tracking and supervision, real production data collection, real time data base. Production information is issued in B/S mode. Real time and historic production conditions are indicated with graphics and texts, so that logistics and information flow during production process can be combined perfectly to realize a real digitalized plant production.

CISDI Automation has got rich experience in MES by its own research and development and engineering practice. Up to now CISDI has supplied 11 MES systems for clients, and has cooperated with Broner (UK) and introduced Broner’s production plan and scheduling modules to have a seamless connection between CISDI Automation’s MES modules and Broner’s production plan and scheduling modules, therefore CISDI Automation is in a position to supply an MES integrated with automatic scheduling and production control.

CISDI Automation has begun research and development of “Iron-making MES”, “Steel-making MES”, “Rolling mill MES”, “MES integration of Steel-making–Hot rolling mill” since 2000. Steel-making MES is widely used in steel plants in China and has won the first prize - Excellent Computer Software in Chongqing.

Main Application Functions of MES

Production order control system:

  • Order control
  • Quality control
  • Plan control

MES for Steel-making

  • Scheduling
  • Technical standards control
  • Quality control
  • Production status monitoring
  • Production process tracking
  • Actual production collection
  • Production abnormity record
  • Raw material control
  • Energy media consumption control
  • Product control
  • Byproduct control
  • Process equipment control
  • Spare parts control
  • Data retrieval and analysis
  • Production report
  • Communication with other system

MES for Hot Rolling Mill

  • Material tracking and control
  • Rolling schedule edit and issue
  • Delivery control
  • Roll control
  • Slab yard control (SYC)
  • Coil yard control (CYC)