Study On Reasonable Production And Optimization Of Electricity In Iron And Steel Enterprises

Electricity is one of the important energy sources second only to coal in the production of iron and steel enterprise, so the position of electricity can not be ignored. In the structure of energy consumption in the iron and steel enterprises, due to the differences of each enterprise’s technological process, electricity proportion is roughly20%to30%, electricity costs account for about10%of the total production cost. So, with an effective way to optimize the electricity production in iron and steel enterprises, looking for a reasonable electricity production and out-purchased strategy, have a great significance on the implementation of energy saving and emission reduction, reduction of production costs and improvement of the overall efficiency of enterprises. With this research background, this paper analyzes the electricity production process and consumption characteristics of iron and steel enterprises, proposes a electricity production optimization model for iron and steel enterprises which taking electricity, gas and steam into consideration, and the model is applied in the electricity production system of Shougang Jingtang, and a better result is gained. The main research contents of this paper are as follows:1. The links of electricity production, out-purchased, use, etc of iron and steel companies are understood deeply, the process principles and characteristics of the existing electricity generation technologies are analyzed in detail, according to this put forward the principle of electricity generation in iron and steel enterprises, and the use characteristics of electricity are analyzed briefly.2. The electricity production optimization model of iron and steel enterprises is established. In this paper, based on in-depth understanding of the electricity production of iron and steel enterprises, integrated considering the joint optimization of electricity, gas and steam three types energy media, established with a universal electricity production optimization model. The model is settled by the software ILOG. The model realizes joint optimization scheduling from production and out-purchased of electricity, gas distribution and steam production three perspectives, and provides reasonable electricity production and out-purchased strategy for iron and steel enterprises, to achieve the purpose of system operating cost reduction. Among them, the optimal allocation of surplus gas and production optimization scheduling of steam is measures, but the electricity production and out-purchased optimal scheduling is the ultimate goal.3. The optimization model is applied in Shougang Jingtang, verify the validity of the model. This paper aims at the present situation of Shougang Jingtang, emboded the universal model, established the electricity production optimization model of Jingtang company to consider the electricity, gas and steam three types energy media. Through the model solution, proposed the electricity production and out-purchased strategy of Shougang Jingtang, at the same time, the scheme of gas distribution between gas buffer user and steam production between steam production equipment is given, reflected the impact of the seasonal tariff on the model. Considered the impact of TOU to model, the corresponding schemes of adjustment are proposed, and better results are gained. Finally, disscussed the economic rationality of the only-buy-coal and only-buy-power two electricity supply modes in steel production, and analyzed the impact of the purchased electricity and purchased coal prices change on the economy of the two modes.