Study of risks associated with the storage of pulverised coal
There have been a number of developments in recent years in industrial Europe in the use of coke in the form of pulverised coal. Whenever a large mass of this coal is in contact with the oxygen in the air (in silos, cones, supply-feeding or unsealed transport storage tanks, etc.), there is a risk of self-ignition. This is increased when the coal is heated as during the pulverising or drying processes. A study was therefore undertaken, under laboratory conditions and in actual industrial installations, to determine the potential risks. It was necessary to determine the extent to which the coal was susceptible to self-heating. Tests were done on various volumes of three types of coal and one type of lignite which can all be found on the European market. A number of different laboratory methods were used : thermogravimetry and thermal differential analysis, adiabatic calorimetry, and tests to determine the critical ignition temperature of a series of homothetic quantities. The overall results provide for security measures, intended to protect pulverised coal installations from fire risks, to be implemented.
Bibliographic Reference: EUR 11747 FR (1988)
Record Number: 198910040 / Last updated on: 1994-12-01
Original language: fr
Available languages: fr