АСУ нагрева и выплавки стали "Метасар"

Automated control system for the technological process of heating and smelting of METASAR steel

Purpose:

Developed by the specialists of STC "Privodnaya Tekhnika", the automated process control system "METASAR" is designed to control the melting process in steelmaking furnaces, namely:

• measuring the parameters of the process;
• equipment condition monitoring;
• management of technological mechanisms;
• high-voltage system;
• voltage stage switch;
• mechanisms for moving the furnace roof and tilting the furnace;
• transformer oil cooling system;
• heat control system of the furnace;
• electrode holders;
• pump-accumulator station;
• and etc.

Application area:

• Arc-type steel-smelting furnaces (EAF),
• Electroslag remelting furnace (ESR),
• vacuum arc furnaces (VDP),
• ore-thermal furnaces and other units in metallurgy.

ACS TP 'METASAR' are manufactured in accordance with TU 4252-004-51493276-2011, Certificate of Conformity GOST-R No. ROSS RU.AB67.H01651

"METASAR" is a two-level ACS TP with a decentralized structure and distributed control and management functions.

The first level of the system is implemented on a programmable controller, distributed peripherals, process sensors and actuators. The controller is connected to distributed peripheral stations via the PROFIBUS-DP network. In the distributed periphery station, all field level signals are reduced.

The second level of the system is the operator's automated workstation (AWP). SCADA-system collects, displays and logs information received from first-level systems, generates a smelting passport, exchanges information with top-level automated systems including data bases. Communication is carried out via the Industrial Ethernet network.

Functions of MANAGER:

information:

• collection, processing and analysis of information on the state of the furnace;
• informing the management personnel about the position of the machinery and the occurrence of malfunctions;
• indication and recording of parameters of energy carriers and consumables;
• indication and recording of electrical parameters, etc.

• formation of control actions in order to maintain a given energy-technological regime;
• transfer of control actions to working bodies and mechanisms in accordance with their current position, imposed interlocks and algorithm of operation;
• formation and control of the implementation of control actions;
• exchange of information (documents, messages, etc.) with interconnected automated systems.

The software of the METASAR automated process control system is based on the following software: Step7, Microsoft Windows 7, SCADA system WinCC, WinCC Flexible, Microsoft SQLServer.

Advantages of the METASAR MANAGEMENT INFORMATION SYSTEM:

• functional sufficiency (completeness);
• reliability (including recoverability, availability of diagnostic tools);
• adaptability;
• modifiability;
• the possibility of modernization, development and expansion;
• modular construction and ease of use;
• Compatibility with existing on-site automated control systems.

The introduction of the METASAR automated process control system ensures:

• improving the performance of the control object;
• reduction of energy consumption, ferroalloys and alloying materials;
• improvement of product quality;
• improving the efficiency of process control;
• reduction in the number of staff.
• automated process control system for heating and melting of METASAR steel

At the request of the customer, the equipment of any foreign or Russian manufacturer can be chosen as the base one.

Development of projects is carried out with observance of all requirements of the normative and technical documentation (GOST, SNIP, IEC, etc.) and with the use of advanced CAD systems.

Technical characteristics of MANAGER:

• power supply 380 V AC at a deviation from -15 to + 10%;
• frequency 50 ± 1 Hz;
• atmospheric pressure from 86 to 106.7 kPa;
• influence of climatic factors in accordance with GOST 15150-69 - UHL4 (possibly UHL3);
• protection against contact with live parts and from the ingress of solids and liquids in accordance with GOST 14254-96 - IP54.
• The influence of mechanical factors in accordance with GOST 17516.1-90 - M1.

An example of a functional diagram of the MANAGEMENT SYSTEM

Automated control system for the technological process of heating and smelting of METASAR steel

Protection:

• from improper actions of personnel leading to an emergency condition of the furnace or control system;
• from random changes and destruction of information and programs;
• from unauthorized interference.

Specialists of NTC "Privodnaya Tekhnika" Ltd. perform:

• working design of the system;
• software development;
• assembly and delivery of equipment;
• installation supervision, installation and adjustment of the electrical system at the customer's site;
• training of the customer's personnel.

ACS TP "METASAR" are implemented and successfully operate on:

• OJSC "Kamaz-Metallurgy"
• OAO ChMK,
• JSC "Ashinsky Metallurgical Plant",
• GUP "LPP" (Yartsevo, Smolensk region),
• OAO NKMK (Novokuznetsk),
• JSC "ChTPZ" (Chelyabinsk),
• OAO "ZMZ" (Zlatoust, Chelyabinsk region)
• and etc.