The technologically advanced sinter machine will reduce dust emissions by 2,100 tonne per year and sulphur dioxide emissions by 3,500 tonne per year
Russian steel major Magnitogorsk Iron and Steel Works (MMK) has commissioned sinter machine No. 1, which produced the first sinter for the blast furnace shop, at the construction site of sinter plant No. 5.
The launch was attended by the Chairman of the Board of Directors of MMK Victor Rashnikov and General Director Pavel Shilyaev.
“The construction of sinter plant No.5 with a capacity of 5.5 MnT will allow us to supply high-quality sinter to our blast furnace production facilities and reduce the cost of pig iron,” Rashnikov said, adding that the best available, energy-saving and environmentally friendly technologies were used in the construction of the production processes at the new sinter plant.
“The environmental measures which are planned for implementation at MMK, including the sinter plant, will allow us to achieve our goals and make Magnitogorsk a truly clean city,” he said.
Shilyaev said: “MMK’s new sinter plant includes 19 environmental features – in particular, electrostatic precipitators, aspiration and sinter gas recirculation systems, a gypsum dehydration system and a stormwater diversion system. The implementation of this project will significantly reduce the plant’s impact on the environment. Emissions of dust into the atmosphere will be reduced by 2,100 tonne per year and sulphur dioxide emissions will be reduced by 3,500 tonne per year. In addition, the discharge of suspended solids into the water circulation supply system will be reduced by 600 tonne per year and emissions of benzopyrene will be reduced by almost a quarter.”
The project will also allow the disposal of sludge from sulphur recovery plants with the production of commercial gypsum and eliminate the deposit of 137,500 tonne of waste per year into sludge storage No. 2. In sinter plant No. 5, the automatic mode (this is the principal difference between the new sinter plant and the old ones) will control the entire technological process of sinter production, starting from sinter loading, right through to the cooling of the sinter. At the main post there will only be three employees: two senior sinter specialists and a senior batcher. Thanks to the video surveillance system at all the important sites (in the dosing buildings, sinter loading area, screening and on the sinter machines themselves), from their workstation employees will be able to control the heating of the furnace, the moisture of the dosed charge, the loading of charge onto the pallets of the sinter machine and the loading of sinter into hoppers.
Currently, the main technological equipment is being installed at sinter machine No. 2. Its launch is scheduled for July this year. At full capacity, sinter plant No. 5 will be able to produce 5.5 MnT of stabilized cooled sinter per year, which will provide the MMK blast furnace plant with high-quality raw materials, produced using modern energy-saving and environmentally friendly technologies.
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