The
Operational Flow sheet shows how the Disposable
Rotary Drum Filter fits into a typical solids-liquid
separation process. Before operation is started
four connections are made to the Disposable
Rotary Drum Filter; one feed from the Slurry
Tank, one return to the Slurry Tank, one to
the Filtrate Receiver, and one to the Cake
Collection container. If cleaner operation
is desired then an air filter can be attached
to the vent connection. If inert gas or nitrogen
is required to contact the filtered material,
then a supply of this gas can be attached
to the vent connection.
After the connections are made, the device
operates as a "closed" system. To start processing
the filter is rotated and feed from the Slurry
Tank is pumped into the bottom of the filter
housing using a peristaltic pump. An overflow
off the back of the housing controls the level
in the filter by returning a small amount
of feed to the Slurry Tank.
As the filter operates, filtrate from the
inside of the drum is directed to Filtrate
Receivers, while cake discharged from the
cake removal knife falls into the Cake Collection
Container. Of course, vacuum is pulled on
the Filtrate Receivers and thus on the filter
drum itself from a Vacuum Source.
As an alternative to the use of one filtrate
receiver that is continually pumped out, the
filter system can be operated with two filtrate
receivers that are periodically switched on-line
and then manually emptied, as shown below.
Operation
| Operational
Flowsheet | Filtration
Area | Materials
