Implementation of a high-voltage frequency converter to regulate the performance of gas-blowing machines at Kametstal

KAMETSTAL, a part of Metinvest Holding, has successfully implemented another investment project to modernize its coke production equipment to save energy. The modernization program was implemented within the framework of the plant’s cooperation with YASNO and with the participation of DALGAKIRAN. One of the main goals of the modernization is to save electricity by expanding the range of gas blower performance control without technological losses during the transportation of coke oven gas to the plant’s consumer shops.

Coke oven gas is used for metallurgical production processes, such as providing thermal energy for coke ovens, generating steam for metallurgical and coke-chemical production at the plant, and producing useful chemical products in the coking process. The long length of the pipelines and the volume of gas transported require high power of gas blowers. At the same time, gas production and consumption at the plant fluctuates throughout the day. Consequently, the operation of the GDM without power control leads to excessive electricity consumption.

Based on the results of the tender and in accordance with the contract, Dalgakiran Compressor Ukraine specialists performed a full range of turnkey works on the selection, supply, installation and commissioning of a gas blower control system based on a high-voltage frequency converter (HVFC). The supplied Hiconics HFI with a capacity of 1250 kW and voltage of 6 kV allows to regulate the operation of all four GDMs, ensuring efficient operation of the recovery shop.

As a result of the modernization, electricity savings amount to more than 5,000 kWh per day, compared to the electricity consumption of the capture shop before the modernization. This solution makes it possible to optimize the company’s gas balance and significantly increases its competitiveness in the global market, reducing production costs.

According to Kametstal’s specialists, electricity consumption has decreased by almost 2 times, and the average daily savings amount to 6-7 thousand kWh.

Project manager – Viktor Golovin