OREANDA-NEWS. "Zaporizhstal" I&SW continues realization of the largest ecological project - modernization of the sinter production facilities at the Works including installation of the modern gas-cleaning systems at all the sinter machines. The modernization envisages investments in amount of more than USD 70 million and it is a large-scale event of the trilateral agreement between the Ecological Ministry of Ukraine, Zaporozhye Regional Council and "Zaporizhstal" JSC, directed to the environmental protection and ecological safety in Zaporozhye city. The gas-cleaning complex of Sinter Plant, at the Works, will be modernized in full, replacement of the available gas-cleaning units will be performed at all 6 sinter machines by the modern gas-cleaning equipment.

The gas-cleaning system at sinter machine No.1 had been already erected and started. In the second decade of November, the second sinter machine was shut down for connection of the large gas-cleaning equipment complex, permitting to perform air cleaning from dust at the level of European norms. The operation principle of the new gas-cleaning system of sinter machine No.2 is in multi-stage cleaning of waste gases: gas is cleaned in the bag filters, trapped iron-containing dust from the bag filters returns back to the sinter production facility. The new gas-cleaning equipment will provide at sinter machine No.2 , air cleaning from dust - up to 20 mg/m3, for sulfur dioxide - lower than 400 mg/m3, as well as it will permit to reduce in steps waste slurry discharge from the recirculation system of the Sinter Plant.

The investments into erection of the gas-cleaning systems of sinter machine No.2 make up about UAH 80 million. The construction works of the gas-cleaning system of sinter machine No.2 are carried out by a Ukrainian company "Progress Group" LLC (Berdychev Machine-Building Plant named "Progress"). While erection of the gas-cleaning facility of the sinter machine, they apply mostly the equipment of Ukrainian manufacturing as well as the equipment made by REITZ Company (Germany). Within the project, installation of two bag filters had been planned, and of forced-draught equipment in a set of tree machines: axial fan, smoke exhauster and aspirator.

"Zaporizhstal" I&SW started the active erection phase of the gas-cleaning system of sinter machine No.2 in September, 2014. Within erection of the gas-cleaning system, the foundation works were performed in full, and over 690 tons of metal structures were erected; the equipment erection was carried out within the preparation stage for connection of the new gas-cleaning system.

"This project is a state-of-the-art one from the ecological point of view and, beyond any doubts; it will bring a substantial advantage for all Zaporozhye citizens. The project is unique because it is being realized in the conditions of the running production facility. All kinds of work are being performed according to the terms specified in the Trilateral Agreement, concluded between "Zaporizhstal" JSC, Ministry of Ecology and Natural Resources of Ukraine, and Zaporozhye Regional Coumcil", the Director of Labour Safety, Industrial & Technogenic Safety Igor Cherniak noted.

The program of further modernization of "Zaporizhstal" JSC, according to realization of the technological strategy of Metinvest Group, includes the stepwise revamping of gas-cleaning system at sinter machines Nos.3 - 6; it will allow to achieve at each sinter machine reduction of dust and gas emission into atmosphere at the level of 10% of total emission at the Works. In the course of the project realization on gas-cleaning equipment replacement at all 6 sinter machines, the Works' Sinter Plant will achieve the international ecological standards as of the cleaning level of dust and gases emission.