Blowers, Compressors and Controls


Dresser Roots manufactures a full line of rotary-lobe blowers and centrifugal compressors. Roots pioneered the rotary-lobe blower design and has extensive experience with a wide range of applications and industries. Dresser Roots manufactures


 

Blowers, Compressors and Controls

 

Dresser Roots manufactures a full line of rotary-lobe blowers and centrifugal compressors. Roots pioneered the rotary-lobe blower design and has extensive experience with a wide range of applications and industries. Dresser Roots manufactures

  • ROOTS rotary positive blowers. For variable pressures with constant volumes, at pressures from 1 to 20 PSIG (69 to 1,379 mbar), flows from 2 to 40,000 cfm (3.4 to 67,960 m3/hr) and vacuums up to 28″ Hg (948 mbar).
  • ROOTS centrifugal compressors. For constant pressures and variable volumes at pressures to 50 PSIG (3,447 mbar) and capacities from 4,000 to 300,000 cfm (6,796 to 509,703 m3/hr).
  • Some Applications by Industry:
    • Aluminum: Pneumatic conveying of bauxite powder from barge to storage; separating aluminum and sand particles by flotation on air.
    • Carbon Black: Pneumatic conveying and bagging; combustion air.
    • Cement: Air supply to homogenize bulk cement going into storage bins; fluidizing cement for conveying in batch plant; conveying from truck to storage bins; air slide for bulk cement transport trucks, conveying ready-mixed concrete batch plant to trucks.
    • Conveying: Pneumatic, vacuum, or combinations for materials such as: sands, feeds, cement, salts, coal, cereal, fly ash, gypsum, bauxite, flour, grains, sugar, starch, carbon black; transfer materials from railroad cars, trucks, ships to vats, hoppers and bins.
    • Dairies: Pressurizing tanks or trucks; evaporation for drying milk; aeration of milk wastes; gentle aeration in bulk storage to prevent butter fat separation; vacuum for milking machines.
    • Food Processing: Freeze drying; evacuation of air from bottle or can filling machine; agitation; pneumatic conveying.
    • Gas and Oil Fields: Field repressurization from exhaust gases of gas engines.
    • Glass: Pneumatic conveying; vacuum holding of sheet glass for transfer; evacuation of test chamber; vacuum filtration from grinding and cutting particles; air cooling sheets and molds; blowing water from glass sheets; cooling and tempering air for curved windshields leaving molds.
    • Oil Refineries: Asphalt blowing; fly ash conveying; liquid transfer by air pressure; vacuum flashing; pneumatic conveying.
    • Paper Mills: Paper machine vacuum; head box pressurization; pneumatic conveying; waste treatment aeration; paper folding; vacuum pick-up of sheets; air glide or cushion for moving heavy loads on flat surfaces; vacuum cleaning/conditioning of felts; roll heading for wrapping; black liquor recovery.
    • Sewage: Aeration in activated sludge plants — industrial, municipal, commercial (hotels/motels/sub-divisions/ships, etc.); separation of grit from sewage; grit channel aeration (prevents settling of grit); pneumatic conveying; dewatering sludge on vacuum filters; recirculation of sludge gas; cake blowing; combustion air for incineration.
    • Steel Mills: Blast furnace air supply; combustion air for open hearth furnace; oxygen furnace; Bessemer converter; cupola blowers; coke oven exhauster; fly ash collectors; vacuum filtration, agitation of ferrous sulphate.
    • Sugar: Pneumatic conveying; aeration of storage bins; vacuum filtration.
    • Water Treatment: Vapor compression; water distillation; aeration of streams; lime-neutralization aeration; air flocculation for water purification; saline water de-salinization; salt water de-salinization
  • Products:
    • Positive displacement blowers:
    • Universal RAI series.
    • RAM series.
    • RCS series.
    • DVJ series and DPJ blowers.
    • Roots-FLO blowers
    • RBTM series.
    • Blower packages:
    • Engineered to order packages.
    • Pre-engineered packages.
    • Centrifugal compressors:
    • Integrally geared compressors
    • Overhung impeller compressors
    • Multistage compressors