Blast furnaces

The blast furnace programme includes the following products:

Taphole clays

Lungmuß Feuerfest is the market leader in Europe in the field of taphole clays and is synonymous with top-quality performance and latest technology. After starting with simple tar-bonded compounds at the beginning of the 1970s, the company has been producing exclusively resin-bonded taphole clays since 1982. In 2015, the product range was expanded to include innovative taphole fillers with a binding matrix based on ecological carbon binders. These compounds are characterised by an extremely low pollutant content, especially with regard to polycyclic aromatic hydrocarbons (PAHs).

Lungmuß taphole clays can be used for both soaking bar and drilling technology. The development with different binding systems makes it possible to set different curing speeds. The use of Lungmuß taphole fillers is therefore also possible with uncooled tapping machines. Currently, these compounds are used in various blast furnaces with a frame diameter ranging from 6.5 m to 15.1 m. The daily production per taphole for these furnaces ranges between 2,000 and 8,000 t of pig iron with intermediate tapping times of 20 to 60 minutes in the case of single-taphole operation. For taphole maintenance, the company offers maintenance products in blocks or as liquid injection compound.

Runner materials

Lungmuß Feuerfest has been producing refractory compounds for lining blast furnace runners since 1966 and was thus the first supplier in Germany to replace the sand linings commonly used at that time with synthetic compounds. Today, Lungmuß offers a complete product range for main, iron, slag and tilting runners. The company provides different product lines for wear linings, permanent linings and insulation linings.

Lungmuß Feuerfest is the market leader in Germany when it comes to the lining of main runners with casting or ramming compounds. The products applied include rapid-heating casting compounds, ramming compounds, conventional and dense gunning compounds. An engineering team offers expert advice on the design, the lining and on the excavation of the runners.

For more than 25 years, the company has additionally undertaken numerous lining operations as a part of full-service contracts.

Prefabricated parts

Since 2007, Lungmuß has also been offering its customers prefabricated parts, especially for the permanent lining of the blast furnace main runners. The engineering department, supported by modern computer software, develops refractory solutions adapted to the customers' needs. An in-house template production facility allows the highest level of flexibility in the design segment. The modern production and the efficient drying furnaces available guarantee an optimal product quality.

Furthermore, we have the possibility to deliver aggregates for our customers according to extremely precise specifications and dry them optimally. Thus, a concept for the delivery of nozzle tips, nozzle assemblies and compensators was developed. This offers the customers reliable durability combined with a minimal thermal loss.