Two Control Methods of Belt Feeders
Belt feeders are run at low belt speeds (relative to belt conveyor belt speeds), typically in the range of 0.25 to 0.5 m/s. Accordingly, they utilize much wider belting than a belt conveyor carrying the same capacity (tph). Belt feeders cannot run at higher speeds because they impart considerable force on the material to remove it from the bin or hopper. The slower speed also ensures more accurate material flow control.
Another control method for the flow of material on a belt feeder is the use of a profile plate or shear bar, which is essentially a volumetric capacity control. This is a steel plate or bar placed above the belt line just outside the leading edge of the discharge from the bin or hopper. The height is calculated based on the required cross-sectional area of material to be transported on the feeder.
Applications of Belt Feeders
Belt feeders are typically inserted into a system at the loading point of a belt conveyor. They are available in a wide range of ratings from light to super-heavy duty. Accordingly, they appear in many industries. Super-heavy-duty belt feeders are most commonly used in applications such as mines handling large, heavy rocks, whereas light-duty belt feeders are often used in manufacturing or even food or pharmaceutical applications.
The precise control belt feeders lend to bulk solids handling makes them useful in a diverse range of applications. Capable of handling everything from sand to ore, belt feeders are especially critical when working with bulk solids that exhibit poor flowability. They are often found in the following settings:
- Pulp and paper mills
- Power generation plants
- Mining and mineral processing operations
- Fertilizer production and blending plants
- Chemical production facilities
- Aggregate handling operations
Top 4 Benefits of UHM Belt Feeders
Benefit 1#: Versatile applications
Developed according to strict safety standards and for easy maintenance, transport, and installation, belt feeders are widely used in mining operations, power generation and construction applications, as well as pulp and paper plants, fertilizer plants, and in grain industry or anywhere bulk materials handling is required.
Benefit 2#: Optimization options
Available in standard capacity and high capacity models models, belt feeders can be implemented in fixed circuits or fitted with wheels for easy transportation. We also offer a wide range of additional features and services for these feeders to enable maximum efficiency of your operations.
Benefit 3#: Safe to operate
Belt feeders are built according to strict safety standards, such as NRs (Brazilian regulations) and OSHA and MSHA (United States regulations). They include an emergency stop as well as misalignment and under speed switches to ensure operator safety. Optional features can also be fitted to additionally improve overall safety.
Benefit 4#: Simplified maintenance
The rugged design and features such as an abrasion resistant liner help significantly increase service life. Additionally, components are easy to access, which simplifies the maintenance process so spare and wear parts can be quickly and easily replaced with minimal downtime.