On 5 October 2011, Kraków hosted the first International HAZEX Seminar on “Industrial explosion risk – ATEX”. The organiser of this unique event, on behalf of Intercontinental Association of Experts for Industrial Explosion Protection, was WOLFF GROUP. Apart from substantive lectures addressed to the management and persons in charge of safety in their companies, the conference offered also:

  • a live demonstration of dust explosion blast force,
  • a contest with valuable awards for the symposium participants.

In 2011, HAZEX conferences and seminars were held, among others, in Shanghai and Nuremberg, during POWTECH fairs.

Photo gallery

Photo gallery presents the pictures taken in 2011 at the first Polish HAZEX conference.


At the seminar, the speeches were delivered by international experts on explosion safety of a reputation proved by:

  • the membership in the European Committee for Standardization on explosion safety (including CEN and VDI),
  • the participation in numerous investigations on dust and gases explosions,
  • conducted experimental studies on explosion hazards,
  • published dozens of papers on dust and gases explosion effects as well as their mineralisation measures.

Simultaneous interpreter

The seminar was held in two languages-Polish and English. All lectures, questions and discussions were simultaneously interpreted (each participant was provided with a wireless headset).

Seminar agenda

The type of the seminar encouraged participant for discussion and asking questions. Owing to that, the most interesting issues were emphasised.

08:30 – 09:00 Registration
09:00 – 09:10 Andrzej Wolff
Stefan Penno
Welcoming celebration and inauguration of the seminar.
09:10 – 10:00 Richard Siwek European legislation: How to meet the requirements of the ATEX directives?
10:00 – 10:40 Andrzej Wolff Potential risks for installations arising from explosive bulk materials storage.
10:40 – 11:00 Coffee break
11:00 – 11:50 Kees van Wingerden A research in a full technical scale on coal and biomass dust explosions in a mill.
11:50 – 12:30 Stefan Penno Preventing the occurrence of explosion outcomes – safe relief of explosion pressure and flames reduction in the industrial practice.
12:30 – 13:30 Lunch break + live demonstration of dust explosion
13:30 – 14:10 Rudi Post Explosion suppression: Technology and application.
14:10 – 15:00 Richard Siwek Explosion decoupling: Available tools and techniques of decoupling two inter-connected devices.
15:00 – 15:20 Coffe break
15:20 – 16:00 Zbigniew Wolff Protection against ignition source induced by static electricity.
16:00 – 16:40 Maik Pohl Explosion prevention through spark detection and extinguishing.
16:40 – Andrzej Wolff
Stefan Penno
Discussion, questions, comments. Conclusion of the seminar.