Rotary feeder

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Please improve this article if you can. (February 2007)

Rotary feeders are primarily used for discharge from hoppers/bins, receivers, and cyclones into a conveying system.

Rotary feeders, rotary airlocks, and rotary valves are useful as one component in a bulk or specialty material handling system. Rotary airlock feeders have wide application in industry wherever dry free-flowing powders, granules, crystals, or pellets are used. Typical materials include: cement, ore, sugar, minerals, grains, plastics, dust, fly ash, flour, gypsum, lime, coffee, cereals, pharmaceuticals, etc...

Industries requiring this type are cement, asphalt, chemical, mining, plastics, food, etc...

Rotary feeders are ideal for pollution control applications in wood, grain, food, textile, paper, tobacco, rubber, and paint industries, the Standard Series works beneath dust collectors and cyclone separators eaven with high temperatures and different pressure differentials.

Drop-thru rotary airlock feeders are designed for economical and reliable material metering and airlock service to maintain an even flow of material through processing systems. Rotary valves are rugged and dependable, even when you're conveying abrasives and corrosives. Different wear protections are available. Rotary valves are available with square or round flanges, rugged castings, cast Iron, 304 SS, 316 SS and other constructions.

Used as:
  • Rotary Airlock

The basic use of the rotary airlock feeder is as an airlock transition point, sealing pressurized systems against loss of air or gas while maintaining a flow of material between components with different pressure and suitable for air lock applications ranging from gravity discharge of filters, rotary valves, cyclone dust collectors, and rotary airlock storage devices to precision feeders for dilute phase and continuous dense phase pneumatic convey systems.

  • Rotary Valve

Rotary airlock feeders/ rotary airlock valves are used in pneumatic conveying systems, dust control equipment, and as volumetric feed-controls.

  • Volumetric Feeder

Rotary airlock valves are also widely used as volumetric feeders for metering materials at precise flow rates from bins, hoppers, or silos onto conveying or processing systems.

Image:Knife rotary feeder Messer Schleuse 01.jpg
rotary feeder

Contents

[edit] Rotary Airlock Feeders

Drop Thru rotary airlock feeders are designed for rugged applications that require an outboard bearing style unit where contamination and /or an abrasive product cannot be handled with an inboard bearing style. The outboard bearing feeders is engineered for use in high pressure pneumatic conveying systems, with high temperatures where more of an effective seal is required due to high or excessive wear that is experienced with a simple dust collector.

[edit] Blow-thru Rotary Airlock Feeder

The blow-thru rotary airlock feeder is ideal for pneumatic conveying applications in food, grain, chemical, milling, baking, plastics and pharmaceutical industries. The blow-thru airlocks feature a low profile with large capacity. High pressure differentials integral mounting feet, and retrofit competitive units. The blow-thru valves are available with 10-vane open-end rotor; outboard bearings and replaceable shaft seals.

[edit] Easy Clean Rotary Feeder

The easy-clean series rotary feeders can be fast and simply disassembled, thoroughly quick cleaned, sanitized and inspected or maintenance in a minimum amount of time without the use of tools or removal from service, thereby reducing downtime and increasing system production. Reassembly without tools is accomplished in minutes. Internal clearances are automatically re-established every time.

The Clean-in-place rotary feeder is a special purpose valve designed for where cross-contamination is a major concern and lengthy shut-downs for clean-out are cost-prohibitive, suited for Dairy, Pharmaceutica lindustries, Food, Baking, Chemical, Plastics, Paint, and Powder Coating plants.

It is ideal for batch mixing systems such as those handling different colored resins which demand regular cleaning between cycles.
Image:Rotary Feeder Easy Clean Zellenradschleuse Schnell Demontierbar 02.jpg
Easy Clean Rotary Feeder

[edit] Filter Valve

The Filter Valve is a low-cost solution designed for light duty dust collector applications.
Image:Filter rotary feeder Filterschleuse 01.jpg
Filter valve

[edit] Knife Rotary Feeder

This type of feeder is used for discharge of secondary fuel as for example: plastics or wood. The knife is cutting the oversize material and is preventing the rotor from blockage.
Image:Knife rotary feeder Messer Schleuse 01.jpg
knife feeder
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