The Impressive Furnace Gas Washer made of Duplex-Steel
Kremsmueller executed a large project for the voestalpine and fabricated a furnace gas washer of impressive proportions.
33.5 metres high, 6.5 metres in diameter, about 180 tonnes weight. That is the basic information about the furnace gas washer that Kremsmueller fabricated for the voestalpine.
A project which, owing to the enormous size, was executed in a production shop outside the voestalpine campus.
Once again, Kremsmueller got the order because the experts were able to input decades of experience, knowledge and know-how even in the preliminary phase.
The furnace gas washer serves for cleaning and cooling the furnace gas that is generated as blast furnace gas during the blast furnace process.
By injecting process water into the gas stream, the dust particles are washed out and the gas pressure is controlled at the level of the furnace gas pressure.
Thus, the furnace gas can then be used for energy generation or as a heating gas in the process.
Although the request for bids for the furnace gas washer was originally for washers in carbon steel, Kremsmueller was the only bidder to additionally offer a variant in Duplex.
Ultimately, the decision went in favour of precisely this suggestion, owing to decisive technological advantages:
An inner coating is not required - thus eliminating the need for inspection and upkeep shutdowns for inner corrosion protection. Insulation is not required, the weight is reduced, etc.
The entire project was carried out by a competence team consisting of three regional companies.
The Apparatus and Tank Construction division of Kremsmueller was responsible for the entire gas washer fabrication.
Thus, for voestalpine, there were decisive synergies from this partner strategy. “Thanks to the cooperation between the business associates of many years and the customer voestalpine, the decision paths were short.
Technical changes can be implemented quickly and flexibly.
Thanks to the fabrication being done ‘right in the front yard’, as it were, continuous quality monitoring and production monitoring by voestalpine was possible”, the project leader of Kremsmueller was happy with the progression.
The voestalpine project leader was also in agreement: “Even in times of globalisation, having local, highly qualified partner companies for implementing technically challenging projects with tight deadlines was clearly of advantage.”
The project took more than 1.5 years, the construction time of the washer was just about seven months and it was finished in time to the fullest satisfaction of the customer.