Customer: JSC “KarCement”, Karaganda region, Aktau
     Reconstruction object is grinding shop No2, cement mills No3,4.


RECONSTRUCTION OBJECT SPECIFICATION      Reconstruction object is cement grinding lines No 3,4. Cement grinding mills of grinding shop No2 are intended for cement getting by clinker, mineral white and slag grinding using “dry” technology. Reconstruction was carried out with essential reducing of old system service reability. It often led to accidents, lenghty downtimes and getting defective products.


Requirements to automation system

• reliability;
• service availability;
• process variable value backup;
• events archive;
• work monitoring.

SOLUTION AND AUTOMATION SYSTEM CHARACTERISTICS

The system consists of following main components:
• programmable controller PLC of the firm ABB series 800, set in the main pulpit of the grinding shop;
• removed inlet/outlet module, set in the oil-station;
• removed inlet/outlet module, set indoors MCC;
• removed inlet/outlet module, set on the clinker storage;
• visualization system.

    Visualization system of technological process is realized on the basis of PC, set on the central cement mill pulpit.

Program products are used as software:
• WinCC 6.2 basic system for solving extensive complex tasks of human-computer interface from project development of singl station to power system with client/server architecture;
• Windows XP pro.

System functions
• safety and warning alarm
• date acquisition about technological process and equipment condition
• archiving of current data in the form of diagrams
• technological parameter setting

     The connection between ABB controller and SCADA system WinCC is realised on Ethernet using OPC–Server. OPC (OLE for Process Control) is international connection standard between components in industrial automation. According to the technology, on the basis of Windows, created OPC supports open interface, providing free and standardize data exchange between programmable logical controllers, control systems and desktop apps of different producers. Any software can be installed on the OPC client, answering conforming OPC standards. So, OPC client can be used, for exaple, for data analysis from different sources. Using individually developed OPC clients, It can be satisfied any requirements at the highest level.

Project implementation period      Project implementation period is 12 months, commissioning is 2009