Study Of The Way Of Energy Saving And Emissions Reduction On Ironmaking Technology In Iron And Steel Enterprises

With the rapid development of China’s economic transition and structural reform of the energy momentum, the energy conservation space of industry and enterprise has great potential.Nowadays, the product unit energy consumption of China’s steel energy and other key industries were more than 10%-20% in developed countries, "recommends the thirteenth five-year plan " is clearly stated that actively control carbon emissions, strengthen energy management and control high energy consumption industries, effective control carbon emissions of electric power,iron and steel, building materials, chemicals and other key industries. Therefore, the steel industry as a big energy consumption industry, energy conservation is imperative which should accelerate the pace of implementation of energy-saving and emission reduction.Through field research to ironmaking flow of a steel company in Jilin Province, and carries out supervision section track records of investigations and to gather information, and data integration with enterprise technical staff audit data is determined to analyze the company from the material balance, water balance and the balance of sulfur ironmaking pollution nodes and links, based on practical business process issues, bringing together the views of staff and expert advice, esTablelish appraisal index system for the enterprise, has set up a four indicators, namely the use of indicators of resources, energy consumption indicators, pollutant emission control indicators and financial control indicators. And energy saving for the enterprise fuller sound evaluation of the index on the basis of a subdivision sinter indicators index pellets, coke indicators, process energy consumption indicators, blast furnace TRT indicators, SO2 eight secondary indicators emission targets, smoke dust emission targets, unit cost indicators to determine the weight of each index, reasonable and feasible energy saving no / low cost and medium / high cost projects. Finally, a comprehensive index of no / low-cost and medium / high cost projects were evaluated to select the best solution. By no / low cost data and after the implementation of medium / high fee program visible, the index value of enterprises have received cuts, the implementation of energy conservation, corporate environmental and economic benefits both.No / low cost and medium / high fee program one, two, three, four after the implementation of energy conservation programs, allowing companies to decrease the amount of resource utilization, reduce energy consumption, reduce emissions and economic costs have savings. Aprogram to program four sinter Lee reduction in amounts of 130.77 kg / t iron, 84.64 kg / t iron,53.77 kg / t iron, 60.83 kg / t iron, a program without fee reduction scheme largest amount; the use of pellets the amount of reduction in amounts of 22.61 kg / t iron, 15.88 kg / t iron, 8.43 kg /t of iron, 5.29 kg / t iron, plan a no-cost program cuts the largest amount; coke reduction amount was 24.8 kg / t of iron, 18.23 kg / t iron, 12.07 kg / t iron, 6.93 kg / t iron, a program without fee reduction scheme largest; process energy consumption points reduction in amounts of 31.06kgce/ t, 17.99 kgce / t, 11.98 kgce / t, 11.35 kgce / t, a program without fee reduction scheme largest;blast furnace TRT lift points respectively 5%, 2%, 10%, 9%, the fee program to enhance the program three largest; SO2 emissions reduction amount respectively 0.062 kg / t iron, 0.069 kg / t iron, 0.028 kg / t iron, 0.041 kg / t iron, low-cost program two largest reduction program; smoke dust emissions reduction in amounts of 0.042 kg / t of iron, 0.117 kg / t iron, 0.022 kg / t iron,0.034 kg / t iron, low-cost program two largest reduction program; the unit production cost reduction in amounts of 140 yuan / t iron, 220 yuan / t iron, 200 yuan / t iron, 180 yuan / t iron case two low-cost program best.According to the composite index was calculated for each program, no fee program a comprehensive index of 90.375; Option II low-cost index was 91.565; Fischer Option Three Composite Index 95.587; high cost program IV index was 94.632. Therefore, a minimum composite index scheme, the energy saving effect of the best, the greatest business benefits.Through four energy saving scheme comparative analysis shows that enterprises implement a no-cost program best energy saving effect. Option II low-cost, medium cost and high cost projects program three four composite index gap is not great, so when the iron and steel enterprises to implement energy saving technology, not only to focus on the implementation of medium / high cost projects, more attention should be paid less investment high efficiency no /low cost implementation of the program, only the medium / high cost and no / low-cost programs combine in order to make the enterprise energy saving effect is fully reached its peak,and the environmental benefits and the overall economic efficiency of both.