Page 13 - Technology Compendium

CSIR-IMMT/MIN - 02

Pulse Scrubber

Advantages / Salient Technical Features Major Raw Materials to be Utilized
• Combined effect of buoyancy, drag force, stratification • Ores
and particle-particle attrition attributed to efficient
scrubbing and separation of low-grade ore. IPR Status / Details (India/Abroad)
• Ore readily separated into a clean coarse product, • Title: Pulse bed mineral and aggregate
high, and low-grade fines washing and classification system Application
Number:201911013441, Indian Patent.
Problem being addressed • Date of filling: 3rd April 2019
• Attrition Scrubber: Particle size, no desliming or • Design Patent: Filling date: 18.3.2021, No.
dewatering. 333419-001
• Blade Mills: Not designed to remove tough, plastic
clays; No overflow weir; Used where the materials Application/Uses
enter in other wet processing units. • To efficiently separate the clay and silicate
• Screw Washers: Not designed to remove tough, minerals present in the ore
plastic clays.
• Log Washers: Finer materials cushion the washing Scale of Development
action; light clays and soft soluble waste materials are • 1 T/h (Current TRL Level : 07)
not removed.
• Rotary Scrubber: Cannot handle tough clays; no Commercialization Status
• Not Yet
separation, screening and dewatering capabilities
Technology Package
Environmental Considerations (if any) • Pilot scale demonstration, Basic engineering
• Environment Friendly data for commercial scale up

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