Zaporizhstal has completed the first stage of the overhaul of blast furnace #3. Metinvest-Promservice specialists have successfully replaced the upper gas shut-off valve.– The gas cut-off valve is designed to equalise the pressure between the atmosphere and the blast furnace space. It is the upper valve that equalises the pressure between the charging hopper and the furnace, and it is very important to replace it in time to ensure that the charging process is safe and does not cause any emergency situations, – Sergii LYSOKON, Deputy Head of Blast Furnace Shop for Equipment, said.Valves are replaced periodically depending on wear and tear. Therefore, it is important to keep their condition under control. As part of the second stage of the major overhaul, the bell-less top chute will be replaced in April 2024.The first stage has now been successfully completed and the blast furnace continues to operate steadily.

The Pelletising Plant of Metinvest's Central Iron Ore Enrichment Works has completed the major overhaul of the OK-324 induration machine.The process equipment of the Pelletising Plant operates continuously, on a round-the-clock basis, for more than 7,500 hours per annum, so the increased level of attention to its technical condition is extremely important for miners. The specialists upgraded the equipment in 14 days. The repairs were carried out as part of the programme to optimise the pelletising process."One of the key areas was the restoration of refractory lining of the induration machine hearth and the repair of six prechambers. This step is crucial for maintaining the thermal insulation of the hearth space of the induration machine and will help avoid the destruction of the brickwork and ensure continuous operation of the plant between the overhauls," Andrii IVANOV, Deputy Head of the Pelletising Plant of Central GOK, said.During the repair, an experimental solution was also imp

Modern technologies to improve economic efficiency and energy independence of the enterprise. Kamet-Steel implemented an investment project to stabilise coke oven gas pressure in the enterprise's system.Михайло КоптєвAt the site of the power plant, the enterprise completed comprehensive tests of a coke oven gas storage system in gas collectors with the possibility of returning it to the gas system of the plant.The project is based on modern technology for collecting excess coke oven gas generated in the network in the process of coke production into flexible gas-holder tanks in order to use it for the needs of the enterprise.The infrastructure of the new facility, in addition to the pressure stabilisation system equipment site, where two flexible gas-holder tanks have been installed - each with a gas storage capacity of almost 580 cubic metres, also includes a compressor building, where two turbocompressors operate for pumping gas and one air compressor, a condensate collection unit,