10 Things To Consider When Choosing A Feeder

AThere are several types of Feeders. Choosing the right one for your application should be based on the characteristics of the material to be handled and the required capacity.

Selecting a Feeder for a particular situation is not always simple, however, especially if more than one satisfactory solution appears possible.

Some of the criteria for choosing the proper Feeder includes:

1. Gradation and lump size

First, consider the gradation of the material the Feeder will handle. Be sure to include the largest lump size (even if it is less than 1% of the total gradation) as well as the smallest particle size in this analysis.

2. Feed rate

Next, determine the capacity of the Feeder, taking into account the design maximum, normal and minimum capacities. Determine if the feed rate is going to be fixed or variable.

3. Type of material and its characteristics

Consider the material the Feeder will process. When sizing a Feeder, it is important to know the following information about the material:

hardness
density
abrasiveness
shape
angle of repose
You’ll also want to consider if the material is free-flowing, sticky, wet or dry.

4. Temperature

Consider the material temperature and the ambient temperature range at the operation site.

5. Is scalping desired?

If the material is to be scalped by the Feeder, consider the desired size of the material and what percent is to pass the opening. Determine if there is one scalping size or multiple sizes.

6. Type of operating duty

Consider how many hours and days per week the Feeder will be operating.

7. Portable or stationary

Determine if the Feeder is going to be installed on a portable or stationary plant, and know if weight and size of the Feeder will be a factor.

8. Space available and site amenities

Consider the space that is available for the Feeder. If this is an underground mine, know if there is a limit to the size and weight that can be transported in the mine shaft or tunnel. Also consider how much space is available for maintenance.

Site amentities are another important aspect to consider when sizing a Feeder. Be sure to consider the type of power available at the site (line or generator), and if you prefer a hydraulic or electric drive. Also take into account the elevation and climate of the site.

9. Type of loading

Consider how the Feeder will be loaded (haul truck, wheel loader, conveyor, crusher, etc.), and know the size of this piece of equipment.

10. Downstream equipment type and size

Consider the type of equipment the Feeder is charging (truck, train, conveyor, crusher, screen or scalper). Also consider the type and size of crusher or downstream equipment the Feeder is planned to feed.

Types of Feeders

The types of Feeders include:

Apron Feeders
Belt Feeder
Reciprocating/Plate Feeders
Vibrating Grizzly Feeders