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EXPLOSION
PREVENTION
EXPERTS
ATEX
ISO9001:2000 certified
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Melli Automazione inerting systems
Since 1980, Melli Automazione produces safety systems based upon inerting; this technique
allows the user to maintain in safe conditions a potentially dangerous atmosphere using inert
gas to reduce the oxygen content in the controlled atmosphere eliminating the risk of a fire
or an explosion.
The safety
Melli Automazione systems ensure the safety of the process thanks to the analysis of the
internal atmosphere of the equipment to be controlled. The atmosphere is sampled and
analyzed on a continuous basis, and the system logic supplies all the signals needed to
keep the plant under control.
The theory
To reduce the risk of accidents, the potentially explosive atmosphere must be safe, preventing
any risk of explosion. To achieve this result, inert gases are introduced in the equipment, reducing the oxygen content and eliminating, in this way, the detonating factor of the explosion.
The systems that are used to obtain this result are defined inerting systems.
In order to ignite, a combustion reaction needs three contemporary factors:
- presence of a concentration of fuels comprised between the low and the high flammability
levels
- presence of an oxidant; normally, oxygen
- presence of an energy source that starts the reaction.
An activity of prevention of fires and explosions implies the suppression of the contemporarily
presence of the described factor: Melli Automazione has chosen the safest one, the reduction
of the oxygen concentration, with continuous analysis. With this technique, in fact, it won’t be
necessary to control the ignition sources, as the reaction cannot start.
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The applications
Melli Automazione systems have been applied with success on very different equipment;
the working logic is always based on the internal atmosphere analysis, and it is so transferable
on all those devices that have the possibility of modifying their internal atmosphere.
Typical applications are:
- centrifuges
- solvent vessels
- pneumatic transport
- synthesis reactors
- silos
- dissolvers
- fluid bed dryers
- mixers
- mills
- tanks
- extruders
- micronizers
The quality
Design and production of the explosion prevention systems are controlled in each phase by
the Quality Assurance System; this ensures that the product answers in a complete way to all
the Customers requests.
The Quality Assurance System of Melli Automazione is certified ISO9001:2000.
The products
Melli Automazione systems are able to answer to all the safety requisites of the plant;
the modularity and high customizability makes the product range perfectly able to answer
to all the safety requirements.
All the systems may be supplied to work in safe areas, or in certified enclosure for classified
areas.
Oxygen analyzers
These products are indicated to protect equipment with a low risk rate, or with no possibility of
maintaining a constant pressure inside; these systems, are pure oxygen analyzers, with the
possibility of supplying alarm signals to an external control device that will be responsible for
inert introduction and safety logic management.
Inerting systems
These products are studied for protecting equipment with a higher risk rate, being able to
supply a complete safety logic, with the possibility of a total plant control.
The inerting systems line allows, in addition to the atmosphere analysis, of controlling even
the internal equipment pressure, and to control the inert introduction.
ATEX certified products
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We are proud to include among our Customers:
3M, A.C.R.A.F. Angelini,
Akzo Nobel, Air Liquide, Antibioticos, Basf, Bracco,
Bristol Myers Squibb, Clariant LSM, Comi Condor, Depa,
Dipharma Francis, DSM Anti infectives Egypt, Euticals,
Enichem, Krauss Maffei, Ferrum, Great Lakes,
Italfarmaco, Mapei, NAR, National Starch & Chemicals,
Nuova Guseo, Orchid Chemicals, Poli Monsanto,
Procos, Recordati, Rohm&Haas, Sanofi Synthelabo,
Solchem,Teva, Viani, Wacker, Zambon Group
MELLI AUTOMAZIONE S.a.s.
20047 Brugherio (Milano) - via F. Baracca, 17
factory: 20047 Brugherio (Milano) - via G. Verdi, 1
Ph. ++39(0)39884105 - Fax ++39(0)39879716
e-mail: [email protected]
www.melliautomazione.it
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