| In recent years as the attention to the environmental protection of the country, energyconservation and emissions reduction has been popular. The eleventh five-year plan for energyconservation and emissions reduction puts forward the specific parameters. Compared with theformer amount, the pollutant total amount needs to be cut by10%. Therefore, through theimplementation of energy conservation and emissions reduction, energy conservation andemissions reduction of our country could fundamentally solve the related problems about excesscapacity, improved industrial concentration from various industries. At first randomly scatteredrow and terminal handling technology brought the huge environmental problems to our country,so that it bought the follow-up of large Numbers of environmental cost. It is not only a waste ofresources, but also brought serious burden to the enterprise. The iron and steel industry becomesa large polluter after the thermal power, metallurgy industry. As a major energy using industry,the pollution of the iron and steel industry is very serious problem. The iron and steel industryhas become a symbol of measuring national strength. For this reason, the task of energyconservation and emissions reduction for our country is very urgent. The main pollutants of ironand steel industries are SO2and NOX. However, SO2and NOXfrom sintering process accountedfor more than a half of the whole process for the iron and steel industry process. So to establishenergy conservation and emissions reduction technology is imminent for sintering process.In this paper, the establishment of four systems lays the groundwork for a certain iron andsteel enterprises to implement energy conservation and emissions reduction throughestablishing an index system of sintering process energy conservation and emissions reductionfor a certain iron and steel enterprises. The main content of the system includes the rawmaterials used indicators, resources and energy utilization, pollutant emission control andfinancial indicators. This paper establishes the secondary index system which is suitable forenterprise based on the four systems in order to analyze the current situation of sintering processof iron and steel enterprise. This secondary index system mainly includes the usage ofproduction per unit product raw materials, production energy consumption per unit product,pollutant emissions and per unit product costs per unit product of4big secondary indexes. Itreflects the changes before and after the implementation of energy conservation and emissionsreduction technology for the enterprises after analyzing secondary index. The paper has foundthe problems in the sintering process are the large consumption of existing resources and energyand massive pollutant discharge on the analysis of material balance and sulfur balance through an investigation and the visit for the current situation of the enterprise. It puts forward thesuitable for enterprise’s none, low fee and middle fee according to current situation. The fourindexes from three different fees after implementation of are cut. It can be seen thatimplementation of energy saving and emission reduction for enterprise is effective.Due to putting Plan1into practice, compared with the present situation of enterprise, rawmaterials cut906500t/a, a total energy cuts4.816kg of standard coal, pollution emissions cut5.782t/d and the unit product cost saves2.21million yuan. Due to putting Plan2into practice,raw materials cut594400t/a, a total energy cuts6.943kg of standard coal, pollution emissionscut9.711t/d and the unit product cost saves6.51million yuan. Due to putting Plan3intopractice, raw materials cut273000t/a, a total energy cuts8.316kg of standard coal, pollutionemissions cut11.813t/d and the unit product cost saves4.41million yuan. Due to putting Plan4into practice, raw materials cut185200t/a, a total energy cuts10.8kg of standard coal, pollutionemissions cut13.986t/d and the unit product cost saves8.51million yuan. It is obvious that theimplementation of the four plans achieves the goal of saving energy, reducing consumption,reducing the pollution and increasing the efficiency for enterprise. However, the change ofsingle index in course of four solutions cannot directly measure the comprehensive benefit ofplan. So in this paper, the comprehensive index method is adopted to screen out the mosteffective solution which is with the minimum energy consumption, minimum pollutantdischarge and minimum raw material consumption in short time for enterprise throughcomparing three plans of different fees. The calculations show that the synthesis index of Plan1is304, the synthesis index of Plan2is311.35, the synthesis index of Plan3is276.85and thesynthesis index of Plan4is388.15in comprehensive index method. It is shown that synthesisindex of Plan4reaches the supreme which is the fastest and the best for enterprise. Theimplementation of Plan4not only reduces the discharge of pollutants in the sintering process,but also saves a lot of energy and resources at the same time in order to promote enterprisesintering process technology for energy conservation and emissions reduction. In the enterprise,therefore, implementation of energy conservation and emissions reduction technology is feasible,at the same time, it drives the progress and it has a profound impact for enterprise development. |
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