TransVair Pneumatic Conveying Systems
TransVair Pneumatic Conveying is
a clean, economical and reliable method of transferring pellets,
powders, flakes, crystals, chips, granules and cubes from remote locations
to either a fixed point, several locations or to process use points. Commonly
used in transferring bulk materials from trucks, railcars or other containers
into bulk storage tanks, this type of conveying is highly efficient and
provides a closed environment to maintain product integrity. With pneumatic
conveying, you can expect almost complete product recovery with little
or no dust and contamination problems.
Offering several types of systems, Young
will engineer and design a convey line specific to your application. Some
of the types to choose from are as follows:
Positive Pressure Systems ( Dilute Phase)
Positive pressure systems are normally used
for conveying product from a single entry point to one or more destinations.
The positive system uses a minimum air quantity to move a given amount
of product. Material can be transported over relatively long distances
using the positive pressure system.
When required, step line conveying systems
can be employed to provide relatively constant conveying velocities to
minimize product degradation during the conveying cycle.
Negative Pressure Systems
( Dilute Phase)
Negative pressure pneumatic systems are
well suited for conveying material from a number of inlet points such
as unloading rail cars, transporting and discharging product into a single
Combination Negative/Positive Pressure
( Dilute Phase )
The pull-push system incorporates the advantages
and benefits of both negative and positive pressure arrangements in a
single system. Systems are used where there are multiple material entry
points, and multiple delivery points. Typical applications include drawing
materials from several points for batching before entering process and
unloading from several points such as rail cars with delivery to bulk
Closed Loop ( Dilute Phase )
Closed loop systems are used for handling
hazardous chemicals, hydroscopic materials and extremely dusty products.
Products such as TPA, caustic soda, and IPA require protection from atmosphere
and particularly oxygen. These materials may be transported pneumatically
in a closed loop system using an inert gas as the conveying medium.
Both negative and positive pressure conveying
systems are adaptable to closed loop design.
Centrifugal Blower ( Dilute Phase )
Blower systems can be positive pressure,
negative pressure, combination negative/positive pressure, or closed loop
systems. They are similar to other pneumatic systems, except that the
centrifugal blowers replace the positive displacement power packages.
The design of this type of system is limited
in static pressure capability, and usually to relatively short distances.
In the case of a thru-the-fan pull/push centrifugal blower system, the
product must be adaptable to passing through the blower.
Dense Phase Conveying
The Young Continuous Dense Phase conveying system operates using a
special high-differential pressure rotary valve to feed product into
the convey line and a special patented air valve to ensure that the
conveying velocity is controlled accurately. The net result is that
the product is conveyed at the minimum velocity, always safely above
the point of plugging. This system is a huge leap forward for dense
phase conveying, in that the transporter is significantly more compact
than a standard transporter's, and much less expensive, particularly
for larger systems.
Pilot Facility: Ready
to Test Your Product !!!
Young is equipped with an extensive pilot
facility where they can assemble a conveying system virtually identical
to your application, and then test your product to determine the ideal
operating parameters and best type of arrangements.
Young has experience handling products that
are fragile, abrasive, corrosive, sticky, hygroscopic, very low and very
high density, combustible, toxic, or otherwise difficult to handle. Because
of this experience, they are the preferred supplier to such companies
as Dupont worldwide for handling products such as TiO2.