Alexei Pavlenko

Resume Abstract

Содержание

• Introduction
• 1. Theme urgency
• 2. Goal and tasks of the research
• Conclusion
• References

Introduction

At the present stage of development of Ukrainian economy the problems of development of the productive sector and, in particular, steel production, which in recent times was a significant share of GDP are exacerbated. The reasons for this were both outdated technological systems, equipment, and their low level of automation, and internal political situation in the country. Therefore, every effort should be taken to reduce production costs by introducing new technologies, increase production, improve quality and increase the level of automation of production, not by lowering wages and staff reductions.

Thus, in the production of steel using both legacy and newer technologies is a promising application of secondary treatment plants are to help accelerate workflow by reducing the duration of the heat and improve the quality of steel. This invariably leads to lower production costs.

For normal operation of such facilities requires installation of gas purification. The main working part of these installations are bag filters whose service life depends on the temperature regime of the filtration system. Higher temperatures lead to premature wear of the filter, which increases costs and is applied to the cost of production. The aim of this work is to create a system for automatic control of temperature exhaust gases in order to further use of these data to create an effective gas cleaning system regime.

1. Theme urgency

It's no secret that the environmental situation of the region is poor, and the industrial production volume is gradually increasing. Therefore, the acute need for treatment of industrial waste. However, construction and operation of such plants is expensive – so you should keep in good condition the existing treatment plants and to extend their service life in all possible ways.

This master's paper is devoted to the management of cooled exhaust gas systems of gas purification unit furnace-ladle, which may increase the temperature, which leads to premature failure of the filter elements. In this connection it is necessary to study the process of cooling the exhaust gas with air, the determination of its mathematical model and to obtain qualitative characteristics, as well as on the basis of the data, automating the process.

2.The aim and research problems, expected results

The aim of this work is to create a system of automatic control installation of flue gas cleaning to ensure the effective operation of gas purification system.

The main objectives for the development of this system are:

1. Development of a mathematical model of the process gas dilution of the outgoing air.
2. To maintain the temperature in the filter at a given level – 110 °С.
3. Ensuring efficient loading of the installation by timely cleaning bag filters.
4. Transfer to the control computer the current values of process parameters.
5. Issue warning about refusal of certain devices, or emergencies.
6. Self-diagnostic system – automatic emergency site.

Conclusion

IDuring the design an automated control system has developed of gas purification furnace steel instalation processing corresponding to the technological requirements of both the qualitative characteristics and design. Thanks to a special method of installation of the transmitter and the corresponding control system design provides more rapid temperature control. This will be ensured as the effective loading process unit that will reduce energy consumption, as well as extending the life of the filter impulse filter bags.

The major advantage of this system are the use of more precise mathematical relationship between the change in the angle of the flap opening the damper and the gas temperature. Office cleaning bags on the basis of their infestation can reduce the shaking pulses amount and thereby reduce the number of micro-bags, which not only prolongs their life, but also improves the gas purification quality emitted into the atmosphere.

The developed scheme allows to introduce this system in obschetsehovuyu automation system at all three levels and ensure its normal functioning in terms of integration with other systems of metallurgical production. For more rapid detection and troubleshooting diagnostics system was developed that reduces downtime on the set of their elimination.

These activities are aimed at reducing production costs, lower production costs and, consequently, increase the competitiveness of enterprises.

References

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