Power Applications

No Maintenance Conveying for the Power Industry

Fox Venturi Eductors have been used since the 1960’s to provide reliable, maintenance-free conveying of fuels, sorbents, additives, ash, dried sludge, and other many other solids when 24/7 reliability is required.

Dozens of Power Producers, Incinerators, Cement Kilns, and Cogen Plants since 1977 have used Fox eductors to reliably convey material to or from their combustion processes.

Where are they used? What are they conveying?


  • Powdered Activated Carbon (PAC)
  • Limestone & Hydrated Lime
  • Sodium Bicarbonate, Calcium Bicarbonate, and other sorbents

Fuel/Alternative Fuel Conveying:

  • Coal, Petcoke
  • RDF/TDF, Shredded Paper, Plastic, Oily Rags, Filter Fluff
  • Biomass, Dried Sludge

What are they conveying into?

  • Boilers
  • Kilns
  • Reactors
  • Fluidized Bed Boilers
(30) Fox Eductors, driven by a common blower, inject coal into a fluidized bed boiler

What Materials Are Fox Eductors Conveying in Combustion Applications?

Here is a partial list from our database of 4000 existing installations since 1964.

  • Activated Carbon
  • Additive, Slag Inhibitor
  • Alumina
  • Anthracite
  • Ash
  • Ash at 600°F
  • Ash at 1000°F
  • Calcium Carbonate
  • Calcium Oxide
  • Coal –
  • Coke Pellets
  • Coke, PET
  • Dolomite
  • Flyash
  • Hydrated Lime
  • Lignite Coke
  • Lime
  • Lime, Pebble
  • Limestone chips
  • Limestone, pulv.
  • MgO
  • Petroleum Coke
  • Quicklime
  • Rice Hull Ash
  • Sawdust
  • Slag at 250°F
  • Sludge, Dried at 500°F
  • Soda Ash
  • Sodium Bicarb
  • Sorbents ( Misc.)
  • Spent Bed Mat’l / CFB
  • Wood Pellets

Injecting Alternative Fuels, RDF, and Waste into Boilers, CFB’s, and Kilns with No Moving Parts

Convey Fuel

Fox Venturi Eductors have conveyed every conceivable type of BTU-containing fuel into combustion processes, including crushed and pulverized coal, coke, and dozens of various waste products like sawdust, shredded carpets, rice hulls, crushed seeds, and paper scrap.

Venturi eductors do not convey with least possible amount of conveying air, so if minimizing conveying air use is paramount, other methods must be considered. However, if reliability is a paramount concern, then Fox eductors must be looked at. Highly abrasive products such as dried sludge, soybean hulls, and other silica-rich biomass all wreak havoc with rotary airlocks and screw conveyors. All have been conveyed reliably with Fox ceramic-lined eductors. Dried sludge in particular has disintegrated a number extremely expensive dense phase and airlock conveying systems (request our published case history about the City of Los Angeles.)

Request Additional Technical Information

Case Study #23 – Coke injection into fluidized beds
Case Study #74 – Biomass waste into Cement Kilns
City of LA Case History – Dried sludge injection into cogen plant, replaces dense phase system

Injecting Sorbents for FGD (Flue Gas Desulfurization)

Please visit our Sorbent Injection page for more information about FGD Applications.

Fox Venturi Eductor injecting sorbent from a screw feeder into a hot flue gas duct


Request Fox Bulletin 309

Request Fox Bulletin 309 – Venturi Eductors for the Power Industry