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Explosion and Fire Protection Consultancy

Working with CoalMillSafety✓ will help achieving compliance with the ATEX Directives, EN Norms and NFPA Standards
We help operators of coal, lignite and petcoke grinding systems to make production of cement and lime products SAFE✓

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Coal grinding systems have wrongs in fire and explosion protection due to purchasing process: See here why.

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Alternative solid fuels

Many alternative solid fuels come with a dust content that will form an explosive atmosphere. Some alternative fuels can develop intensified oxidation (heating up) during silo storage. Here we have to look into silo storage and understand that the same protection as for silos for coal, lignite and petcoke has to be implemented.

A problem often is that silos supplied for the storage of alternative fuels come from companies with an agricultural background. The designs then often are incorrect in aspects like explosion pressure shock resistance and explosion venting, e. g. when non-self-reclosing explosion vents are installed, which makes effective firefighting impossible. Such silos simply are the wrong equipment and their correction can be difficult or impossible.

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A silo as it should not have been installed. The flat roof indicates questionable explosion pressure shock resistance and the explosion vents are badly accessable non-self-reclosing self-destructing rupture panels. The de-aeration de-dusting filter also has a questionable explosion pressure shock resistance.
A silo as it should not have been installed. The flat roof indicates questionable explosion pressure shock resistance and the explosion vents are badly accessable non-self-reclosing self-destructing rupture panels. The de-aeration de-dusting filter also has a questionable explosion pressure shock resistance.
Dried sewage sludge silo with flat roof in sandwich construction, with explosion pressure shock resistance ‘good for 2 bar g’ and self-reclosing explosion doors. Photo courtesy Thorwesten Vent GmbH.
Dried sewage sludge silo with flat roof in sandwich construction, with explosion pressure shock resistance ‘good for 2 bar g’ and self-reclosing explosion doors. Photo courtesy Thorwesten Vent GmbH.
2 bar g explosion pressure shock resistant flat bottom silos aiding the downward flow of the bulk material by their reversed tapered shape.
2 bar g explosion pressure shock resistant flat bottom silos aiding the downward flow of the bulk material by their reversed tapered shape.