ROTARY FEEDER HDS
HDS rotary valves are equipments with two main functions, dosing and locking, are made of aluminum or stainless steel, with rotor sizes in 200/250/320/400/500 or 630 mm, for pressure difference up to 3.5 bar (g).
It has the capacity range of 7.5 to 315 m³ / h, and the drilling of the flanges according to ANSI B16.5, pressure class 150 or customer standard.
The Dosing function: allows the volumetric control of the material to be transported (powder, grains, fine materials, high temperature products or abrasives).
The lock function: allows the entry of solids in the high pressure region, restricting the passage of air or gas, isolating high or low pressure systems.
Possibility of application for abrasive products, high temperatures and explosion proof.
The Rotary Valves are widely used in the unloading and dosing of powder or solid materials. Silos, hoppers, pneumatic conveying system, bag filters, cyclones are examples of some origins that need to be discharged and dosed in a measured and reliable manner, so the rotary valves allow a thorough volumetric control in transport or processing systems.
Its principle of operation is the rotor, which removes the material of the girl, silo or other that is placed above, and through the rotational movement the product is discharged by the bottom of the valve.
The operation is carried out in a continuous way, promoting the regular discharge of the product, isolating the systems of high pressure and low pressure, restricting the entrance of the air or the false gas, and allowing an application for abrasive products and of high temperatures. The Zeppelin rotary valve is a reliable unit and an explosion proof, we can see below the principle of one of the rotary valves, the product flows into the homes that are driven and the materials for pneumatic transport.
To see the operation in videos go to: https://www.youtube.com/watch?v=xom752iqFA8
They absorb any process oscillations.
Without the need for cooling or heating of the solid product, due to its ability to operate from -10º C to + 60º C, in standard execution.
It is integrated casing deflectors ensure the filling of the rotor chambers, thus ensuring functionality and high process performance.
For versions intended for powdered materials, the valve has the upper part of the beveled ends, which reduces the adhesion of the material between the rotor and the housing, and with the friction, avoiding possible locking of the valve.
Options of models with devices for quick cleaning (Quick-Cleaning), that allows to handle several different products avoiding contamination. And models compatible with NPT 027 (Explosion Propagation), which can replace the locking valves, and with that, provides savings in the composition of the line equipment.
All Zeppelin Rotary Valves feature self-lubricating bearings, which facilitate maintenance as they do not need to be lubricated periodically.
The direction of rotation and rotor speed can be visually checked by the operator during operation, ensuring the functionality and effectiveness of the equipment in the process.