Rotary feeder

High school (ages 12+)
Making & Design

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/rotary-feeder

1. What is the engineering classification?
2. What is the primary application?
3. How does a rotary feeder control the amount of material that goes into a conveyor?
4. Why do rotary feeders need seals and close tolerances?

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the engineering classification?Volumetric feeder and airlock device
2. What is the primary application?Controlled discharge of bulk solids into pneumatic conveying systems
3. How does a rotary feeder control the amount of material that goes into a conveyor?It has a rotor with vanes that create pockets. Each pocket holds a set amount of material, so the machine can measure how much is sent.
4. Why do rotary feeders need seals and close tolerances?The seals keep air from leaking, so the air pressure stays strong and the conveyor works well.

Volumetric Feeder: A device that meters material based on its volume, rather than its weight.
Pneumatic Conveying: Material transport using a stream of air or gas through a pipe or duct.
Throughput: The rate at which material can be processed or moved by a system.
Bridging: A phenomenon where bulk solids form an arch or bridge over an outlet, preventing flow.