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CrossFlow Classifiers

$11,494.00 - 24,040.00

A high capacity teeter-bed separator

Eriez' CrossFlow Separator is a highly efficient hydraulic classifier for the separation of material based on particle size, shape and/or density. This technology can also be used for desliming, counter-current washing and acid neutralization of minerals.

The CrossFlow separates particles based on hindered-settling principles providing an economical and efficient means of classifying material such as silica and frac sands, mineral sands and industrial minerals.

Ores containing a mixture of high- and low-density components can also be upgraded based on their difference in specific gravity. Examples include iron ore, and heavy mineral with silica contamination and run-of-mine coal containing various ash-forming components such as rock and pyrite.

The hindered-settling environment creates the optimum conditions for efficient counter-current washing to rinse, clean, and neutralize ore prior to secondary unit operations.

Applications include:

  • Sizing and Classification
  • Density Separation and Concentration
  • Washing and Neutralization of Minerals

NOVEL FEED PRESENTATION SYSTEM IMPROVES SEPARATION EFFICIENCY

Unlike traditional teeter-bed technologies, the Eriez CrossFlow uses a unique "tangential" feed presentation system to introduce feed into the top of the separation chamber. This novel approach can provide unit capacities up to three times that of a conventional classifier and eliminates particle misplacement caused by excessive feed volume and plant fluctuations.

In the CrossFlow, feed particles descend against a rising flow of teeter water established by a uniform system of water injection pipes located in the base of the main separator housing. Based on the settling characteristics of the ore and the water addition rate, a fluidized bed of solids is established in the separator. Particles with a low settling velocity (fine/low density) that cannot penetrate the teeter bed are carried over the top of the separator with the bulk of the fluidizing medium. Particles with a high settling rate (coarse/high density) settle through the fluidized bed and are eventually discharged at a high solids content through the underflow control valve.

CrossFlow Features

  • High capacity
  • Precise, efficient classification
  • Improved efficiency with fluctuating and/or dilute feed streams
  • Easy, on-line cut-point control using true density measurement
  • Fully automated discharge control system
  • Dewatering cone for consistent underflow discharge characteristics

 

 

Product Table

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Item Name Part Number Description Price  
2x8-inch Laboratory CrossFlow, 30-inch height • Acrylic vessel with feedbox, overflow outlet and underflow valve connection
• Dewatering cone
• Elutriation water manifold and associated piping
• Stainless steel support frame
• Teeter water flow meter
• Type A Underflow control Valve
• PID Loop controller and I/P Converter housed in Nema4 Enclosure
• 115VAC, 1PH, 60Hz, 0.025A
$11,494.00 USD Add
9x16-inch Pilot CrossFlow - Maximum Feed Rate: 2.5-3.0 stph • Stainless Steel vessel with overflow outlet and underflow valve connection
• Dewatering cone
• Internal elutriation water distribution manifold, and associated piping
• Flanged above manifold to promote ease of access and maintenance
• Stainless steel support frame
• Teeter water flow meter
• Underflow control Valve
• PID Loop controller and I/P Converter housed in Nema4 Enclosure
• 115VAC, 1PH, 50/60Hz, 1A
$24,040.00 USD Add