|
Initial position
An international biotech
company wants charging automatically the process tanks with
powders. Because the space conditions above the tanks are
too small for installing of
product receivers, a suction
conveying system is not possible.
Solution
Based on our suction/blowing conveying
system we have developed and mounted a
complete charging
installation. Adjacent the installation could be
commissioned
and
handed over with all GMP required documentations to the
client.
The system control was developed by a contractor on the basis
of our FS
(functional specification) and integrated into the overall system
control.
The
characteristic of our conveying system is the compact
construction of the vacuum conveying device without moving
parts. Against conventional suction or pressure conveying
systems it is much smaller, cheaper and very low maintenance.
The vacuum conveying device NefVac is connected with
regular compressed air supply.
In the line section
between tipping hopper and vacuum conveying device NefVac
the product is aspirating and from the middle of the vacuum
conveying device the product is blowing in the corresponding
process tank.
This
system requires the return of the feeding air from the
process tank in a filter
installation. The exhaust lines from the process tanks go to
a central filter installation
which is installed for dedusting of tipping hoppers
outside of the clean rooms.
For almost complete filtering of the product dusts a
secondary filter of HEPA filter class H13 is installed
after the primary filter.
To evidence the
function and the required conveying capacity with real
products (very fine,
very light, very dusty powders) we have carried out
previously extensive test under real
conditions. With it we were able to perfectly assure the
client of the performance and
simplicity of our conveying system.
Application
With this installation
the process tanks can be charged automatically and dust free
with powders. With it the whole production process is much
improved in respect of cleanliness and health protection of
operators.
|
