FDL (E2) 03/2011
page 15/68
1.8
Measures to prevent accidents
During drying of fluid paints, flammable solvent/air mixtures can form and ignite.
The manufacturer took the following measures to prevent ignition and explosions:
•
Indications on the type plate
See operating manual chap. 1.4
•
Operating manual
An operating manual is available for each safety / paint drying oven.
A diagram in the operating manual (chap. 2.3) indicates the maximum permissible solvent quantities
for various operating states.
The operating manual asks the operator of the safety / paint drying oven to set up an instruction on
the permissible loading quantity.
•
Maximum temperatures and maximum permissible steam concentration
By means of the diagram “Highest permissible solvent quantity”, which is included in the operating
manual chap. 2.3 and applied on the front of the safety / paint drying oven, the operator must adapt
the drying temperature to the maximum solvent quantity arising.
When using nitro-cellulose lacquers or nitro combination lacquers, the diagram ”Highest permissible
solvent quantity” specifies a limit temperature of max. 130 °C/
266 °F
, which must not be exceeded.
(In this context, all paints containing more than 5 % nitro-cellulose relative to the non-volatile contents
are regarded as nitro-cellulose lacquers and nitro-combination lacquers).
A gas-tight separation between the drying chamber and the heating chamber is not necessary since
there is an effective forced air motion in the entire steam room.
•
Throttle valves
No throttle valves are used, i.e., the full air change occurs permanently.
•
Protecting the heating surfaces against dripping
The BINDER APT.line™ preheating chamber protects all heating elements against lacquer dripping
and direct contact with lacquer coatings.
•
Heat insulation
All heat insulation is sealed against penetration by lacquer vapors from the outside with high tempera-
ture-resistant and ageing-resistant sealant.
The insulation material consists of non-combustible mineral wool (class A1 according to DIN 4102-
1:1998).
•
Temperature monitoring
The safety / paint drying oven is equipped with a temperature display, which can be read from outside.
A built-in additional temperature safety device can turn off the heating and is functionally independent
of the main controller. When turning off the unit, the forced convection and the control equipment’s
function are maintained. Visual (red indicator light) and audible (buzzer) signals indicate temperature
exceeding.
•
Safety in case the technical ventilation fails
The heating only turns on if the air circulation is already in operation.
If the air circulation fails, the heating immediately turns off. In addition, there are audible (buzzer) and
visual (red indicator light) signals.
•
Moving parts participating in the work process
It is impossible to touch the fan from outside the device or from the interior.
•
Safety, measurement and control devices
The safety, measuring, and control equipment is easily accessible via the housing top cover.
Summary of Contents for 9010-0269
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