Filter Technology & Gas CleaningMaterial Transport / Conveying Mechanisms
Reliable and safe
When it comes to ensuring availability and operational safety in dedusting plants, conveying mechanisms are just as crucial as fans and filter systems.
All conveying mechanisms can also be used in explosive, dust-laden atmospheres as defined in Directive 94/9/EC (ATEX).
In the cement industry, rotary valves are used as continuous discharge or dosage devices with slight negative pressure/overpressure for air exclusion purposes. The advantages of rotary valves lie in their comparatively low construction size combined with a high, speed-dependent conveying output, their ability to be used in a wide range of temperatures and with various pressure differences and the relatively low energy costs associated with them.
Tube-type and trough screws are used to continuously transport bulk materials, at throughput volumes of 2 to 500 m3/h and with screw diameters between 200 and 1000 mm.
Pneumatic conveying – High-pressure conveying systems
The longer the material conveying path and the higher the quantity of material that needs to be transported, the more sensible a choice high-pressure systems become. The main components of these are a high-efficiency rotary blower plus a rotary valve and an injector. Together, they ensure efficient conveying even when dealing with significant material quantities. High-pressure systems are ideal for use with conveying quantities of 1 to 100 t/h, conveying systems of up to 1500 m in length and nominal widths between 88 and 500 mm.
Material loading stations
Material loading stations consist of a rotary valve with an injector directly attached to it. The rotary valve loads the material into the pneumatic conveying system in a controlled manner, If it needs to handle items that cause wear, the system can also be lined with special materials.