How Vacuum Conveying Works
With vacuum conveying, materials are drawn to the delivery point through a totally enclosed pipeline, in a clean, contained stream of air generated by a vacuum blower package.
In vacuum conveying, no moving parts contact the materials, no dust escapes into the atmosphere and no contamination can enter the system.
The Advantages Of Vacuum Conveying
- Cost effectiveness
- Dust free operation
- No contamination
Elements of a Vacuum Conveying System
From pick-up probe to piping to receivers and vacuum blowers, Coperion K-Tron offers a wide range of equipment for pneumatic conveying needs, whether for automated refill of feeding systems or as stand alone conveying applications. The following list describes the varied elements available from Coperion K-Tron for building a complete conveying system for loss-in-weight feeder refill (pictured in the diagram below).
From simple suction wands for free flowing materials to fully fluidized feed bins (1), silo pick-up pots (2) or bag dump stations (3) with prefeeders for powders, Coperion K-Tron offers a wide variety of equipment to ensure reliable material pick-up into the conveying air.
Connecting one or multiple material pick up stations to a vacuum receiver. To ensure blockage-free conveying, diverter valves (4) and line clearance valves (5) are available in addition to the piping (6).
Various models of central (7) and self-contained receivers are available to separate the material from the conveying air stream, alternating between suction and discharge modes of operation.
Sequence & Vent Valves
Sequence & vent valves (8) allow the air stream to bypass and vent the vacuum receiver during the discharge cycle.
Vacuum blower packages include the pump -- PD blower (9), sliding vane or rotary lobe blower(10) -- to produce the air stream as well a bypass valve (11) to allow the blower to run while no receiver is conveying and a secondary filter (12) to protect the vacuum pump from entrance of foreign bodies.
LSR controller is available to control a single central or self-contained unit. To control the sequence of a multi-component system microprocessor (MPC) or programmable logic (PLC) controls (13) are available which are programmed to suit the client’s process. Siemens, Mitsubishi and Allen Bradley PLC controls are available.
Special Pneumatic Conveying Projects
Unique problems are a welcome challenge to Coperion K-Tron; they often introduce us to a whole new area of business.
Whether replacing outdated technology or mechanizing manual operations, our resourceful designers will engineer a custom vacuum conveying solution.
Examples of Challenging Vacuum Conveying Projects
Fragile foodstuffs such as nuts and spaghetti shapes were being handled using cumbersome, difficult to clean bucket elevators... until we designed a gentle pneumatic conveying system that caused no product damage.
Hot melt adhesive pellets were always manually handled, exposing operators to fumes and splashes of hot molten glue... until we developed vacuum conveying equipment which ensures continuous direct transfer of the pellets to the point of use.
Safety and hygiene
Wherever hygiene, product integrity, dust control and operator safety are paramount, Coperion K-Tron can provide clean controlled vacuum conveying.
Batch and Continuous
Our vacuum conveying equipment delivers bulk materials in batches or as a continuous flow, lending itself to a wide range of applications:
- transfer from bulk storage to process
- check screening of raw materials
- mixer loading and unloading
Products Coperion K-Tron Has Conveyed with its Vacuum Conveying Systems
From our test data on more than 5000 products, here are just a few of the many products Coperion K-Tron can convey:
Vacuum Conveying of Plastic Products
Vacuum Conveying of Food Products
Vacuum Conveying of Chemical Products
Vacuum Conveying of Pharmaceutical Products
Vacuum Conveying of Speciality Products
Typical Vacuum Conveying Applications