Dense Phase Pneumatic Conveying
Pneumatic Conveying has been given a “bad rap” when handling fragile products due to the fact that many have tried a version of it only to erode (or even explode) their product through a high velocity conveying line. These experiences are, in fact, representative of conventional dilute phase vacuum conveying. With dilute phase conveying there is a lot of air used for conveying and therefore a lot of product interaction (potential damage) at the high velocities necessary for conveying with traditional vacuum pumps.
Our pneumatically operated vacuum pump makes Dense Phase pneumatic conveying possible. By being able to pull nearly a full vacuum (27” Hg.), the vacuum pump permits us to let in very little air for conveying. The product can be pulled through the line in dense slugs which move at low velocity, with little to no product interaction. The result is the ability to vacuum transfer fragile products without damage. This opens up the door to automation, efficiency, labor savings, and solutions to many ergonomic issues that plague the food, chemical, and pharmaceutical industries.
Feed Components for Pneumatic Conveying Systems
There are a few options available for introducing material into the pneumatic conveying system. The most common being a vacuum feed wand or a feed station hopper.
Vacuum Wand Feeder
A Vacuum Feed Wand is our standard method of feeding the product into the pneumatic conveying system from a drum, Gaylord, or other container.
Feed Station Hopper
Feed Station Hoppers of any size or configuration to introduce the product into the pneumatic conveying stream.
Specially designed to feed product horizontally from a discharge hopper to the receiving container, our vibratory feeder is a simple, safe, and inexpensive choice for getting a controlled feed.
The heart of the system is the vacuum pump, which creates the reduction in low pressure or suction that moves the material from its source to the collection container. By using a Compressed compressed air‐driven vacuum pump, Air the unit is inherently explosion‐proof and can ramp up to 90% of a full vacuum, as necessary.
Pneumatic Control Systems
At the heart of every process is a control system to integrate each piece of equipment ensuring they work as a single process.
The control system can range from a simple, purely pneumatic logic system to a more complex PLC based system and anywhere in between.
IEDCO is uniquely positioned to design, build, program, and integrate the controls into your process.
Vacuum Filter Elements
When the material, together with the conveying air, enters the collection container, most particles are separated out, due to a drop in velocity.
A small amount of fine particles follow the air to the filters, where they are collected. The clean air continues through the vacuum pump exhaust.
An integral part of many powder handling systems is the valve used to provide the controlled feed of product into the process. Our valve choice is dictated by the needs of the project and we offer a variety of different options, but our standard valves fall under three main styles:
- Butterfly Valves
- Rotary Valves
- Tablet Valves
In-Line Vacuum Sifter
The IEDCO In-Line Vacuum Sifter is designed to be directly connected into a pneumatic conveying line and capable of screening using a wide range of mesh sizes.
Explosion Proof Vacuum Cleaner
Designed as a portable, self-sustaining vacuum, the system is capable of vacuuming up various materials while maintaining ground and continuity with static dissipation for use in hazardous environments
Pneumatic Conveying Reactor Feed System
Using pneumatic conveying, the IEDCO Reactor Feed System allows the charging of a vessel in an inert atmosphere and in a clean and contained manner. A perfect solution for pharmaceutical, chemical, and food processes.