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TECHNOLOGIES AND AUTOMATIC CONTROL SYSTEMS FOR
THE PROCESSES OF SINTERING AND BLAST-FURNACE PRODUCTION
AUTOMATIC SYSTEM OF CONTROL OVER THE PRESSURE PULSATION
OF THE GAS PHASE IN THE BLAST-FURNACE
The pressure pulsation of the gas phase in the blast-furnace, by means of equal distribution of the gas over the levels of the blast-furnace and, as a result, intensification of the heat and mass exchange, allows to reduce coke consumption up to 2% and to increase the blast-furnace output by 2 - 5%.
The RPC "Donix" has developed an automatic system of control over the pressure pulsation of the gas phase in the blast-furnace, which allows to select and realize optimal pulsation modes for each blast-furnace particularly.
The system's purpose: to realize the blast-furnace smelting technology using the top pressure pulsation and the natural gas flow rate.
The system's functions are:
- to organize the gas pressure pulsation under the furnace top with the given amplitude and frequency;
- to organize the natural gas flow pulsation with the given amplitude and frequency;
- to visualize the furnace top gas flow in the form of a diagram;
- to visualize the natural gas flow rate and to carry out the accumulative calculation of its total consumption in the form of a diagram;
- to visualize the throttles position, the actuator tasks and their fulfillment;
- to record the events and accumulate the statistics;
- to record the prehistory of emergency conditions development and to retain it for further processing and analysing.
Hardware:
- electronic package of pulsation control, produced by the RPC "Donix";
- personal computer (industrial version is possible);
- uninterrupted power supply.
Electronic control package is of damp and dustproof construction. The operating temperature range of the package lies within-20 and +85°C.
Software: software environment, written in "C++" language, functioning in the operational system MS DOS.
The system is introduced:
blast-furnace N°4 of Enakievo Metallurgical Works.
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