State-of-the-art explosion protection for dedusting of coal grinding plants

Summary: With dedusting of coal grinding plants, the state of the technology is determined by the explosion protection measures, the filtration performance and the design of the plant. To ensure safe operation of a plant, only certified and tested concepts and components should be used for its design and manufacture. With plants protected against explosion, such issues will always affect the plant’s resistance, its explosion relief venting and its explosion decoupling systems. Economic factors, where the aim is minimising the filter level and lean design, should not be forgotten with dedusting and it is important that plants are aligned to the latest state of technological development.  With their years of experience and continuing development in the area of dedusting for coal grinding plants, Intensiv-Filter and Thorwesten Vent have succeeded in implementing the state of the art.

1 Introduction

Coal is still considered the most important fuel for the manufacture of cement, lime and gypsum. In the German cement industry, despite the increasing use of secondary fuels, the proportion of the total thermal energy requirement is still around 40  % (36.6 million GJ/a) [1]. This value has stabilised over the past few years and the trend is anticipated to be rising rather than falling. Worldwide, coal as a fuel for the cement industry is even more important since secondary fuels are used less and coal is often available locally, making it a low-cost energy source. Particularly...

Related articles:

Issue 03/2014

MPS mills for coal grinding

1 Introduction Two mill systems are employed for most coal grinding applications in the cement industry. These are, on the one hand, vertical roller mills (VRM) that have achieved a share of almost...

Issue 03/2013

New explosion protection solution

The company Thorwesten Vent from Beckum, Germany, has been working in the constructional explosion protection business for the grinding and storage of solid fuels such as coal and pet coke for several...

Issue 10/2010

Intensiv-Filter India provides Bhutan with environmentally friendly dedusting solution

New cement plant at high altitude Bhutan, situated at the borders of India and Tibet, is a country of superlatives: The 7541 m high mountain Gangkhar Puensum is the worldwide highest mountain which...

Issue 7-8/2017 GEBR. PFEIFFER SE

Gebr. Pfeiffer delivers complete coal grinding plant to Egypt

BMIC, headquartered in Cairo, awarded Gebr. Pfeiffer a contract for a complete coal grinding plant on a turnkey basis for its cement plant in Assiut/Egypt. Gebr. Pfeiffer, together with its global and...

Issue 7-8/2018 LOESCHE GMBH

Two coal/petcoke grinding plants for Mexico

Loesche has now sold two of its biggest coal/petcoke grinding mills for the cement industry in Mexico. These are to be used in the cement plants of the group Cooperativa La Cruz Azul, S.C.L. – on the...