Feeders are used to transport materials or products in manufacturing and assembly applications. Common types of feeders include rotary, vibratory, screw, apron, bowl, and volumetric/gravimetric screw feeders. Silos are structures used for storing bulk materials like grains and operate through tower, bunker, and bag configurations. Tower silos can be concrete, metal, or other materials and use automated loading/unloading while bunker silos are low trenches with covers and bag silos are portable and temporary.

1. FEEDERS & STORAGE SILOS

2. FEEDERS Feeders are machineries used in assembly and manufacturing applications to move or “transport” materials or products to a designated storage or to other processing equipment.

3. Types of Feeders

4. Rotary Feeders

5. rotating element or vane discharges powder or granules at a predetermined rate often used with large amounts of solid material power comes from an internal combustion engine or an electrical motor

7. Vibratory Feeders

8. use both vibration and gravity to move material used to transport a large number of smaller objects uncontrolled recovery of the material from top of feeder controlled delivery of the material from bottom of feeder

9. How It Works

10. Example: PILL BOTTLING SYSTEM a large batch of pills is dumped into the top of the vibratory feeder gravity will pull the pills toward the bottom of the feeder where they can exit one at a time so that they can be counted once the correct number is in the container, the feed is stopped until a new bottle is placed in position

11. Screw Feeders

12. used for handling bulk materials, in which a rotating helicoid screw moves the material forward, toward and into a process unit. very similar to screw conveyors in their basic structure, both of which are based on the principles of the Archimedean screw capable of delivering dense slurries and dry granular products with great accuracy at a range of operational speeds drive is controlled by servo motors capable of precise stop-start and speed control

14. very accurate feed values to be maintained

16. a limited-length version of apron conveyor also known as plate-belt feeder; plate feeder. allows automatic control the volume of materials that are added to a process construct is from heavy, durable materials like steel

17. the belt portion of the apron feeder is made from thick steel trays or pans can be found in mining operations, factories, and concrete plants cannot be used in applications where precise feeding and measuring is required

18. How It Works

19. Materials that will be carried by the apron feeder are held in a large hopper above one end of the belt. The amount of material that reaches the feeder is determined by the distance between this hopper and the top of the feeder. As the hopper deposits materials onto the apron feeder, the metal pans that make up the belt travel horizontally like a conveyor belt. When the trays reach the end of the belt, they dump, or feed the materials into another vessel.

20. Bowl Feeders

21. used to feed parts to an assembly line or piece of manufacturing equipment individual components exit the feeder at specific intervals and enter the next step in the assembly process Each bowl feeder uses special sensors to spot jams or parts that may be misaligned. one drawback is its precise operation.

22. How It Works

23. In a standard application: the bowl feeder sits below a hopper or bin workers fill the hopper with bulk material, and these objects fall into the feeder below

24. Types of Bowl Feeders

26. Larger Loads

29. Types of Silos

30. Tower Silos

31. most common type of silo can be made of concrete, brick, metal, wood, and other materials loading and unloading is done with automated systems

32. Bunker Silos

33. are trenches, usually with concrete walls, covered with a plastic tarp to make it airtight automated systems for loading and unloading more low profile than tower silos better insulated

34. Bag silos

35. 8 to 12 ft in diameter unloaded using a tractor and loader or skid-steer loader. require little capital investment. temporary measure when growth or harvest conditions require more space.

36. Skid-steer Loader

37. Bins

38. shorter than a silo used for holding dry matter shape is either round or squared contain a hollow perforated or screened central shaft