Module 4: Separation of Solids Based on Specific Properties PDF

Module 4 Separation of Solids Based on Specific Properties  Syllabus Gravity settling chamber, Wet scrubber, Elutriator, Electrostatic separation, Cyclone separation, Magnetic separation, Froth flotation, Jigging.  Gravity Settling Chamber Settling chamber – Useful...

Module 4 Separation of Solids Based on Specific Properties  Syllabus Gravity settling chamber, Wet scrubber, Elutriator, Electrostatic separation, Cyclone separation, Magnetic separation, Froth flotation, Jigging.  Gravity Settling Chamber Settling chamber – Useful for large particulates (>50μm) – Often in conjunction with a filter or precipitator to reduce overall system and operation costs (pre-collector) – May also contain baffles to serve as impingement devices – Low overall pressure drop and efficiency  Gravity Settling Chamber Gravity Settling Chamber: It is used to remove large and abrasive particles > 50 μm from a gas stream. This is a simple particulate collection device using the principle of gravity to settle particulate matter in a gas stream passing though its long chamber. Advantages of Settling Chambers: 1.Low capital cost 2.Very low energy cost 3.No moving parts, therefore, few maintenance requirements and low operating costs 4.Excellent reliability 5.Low pressure drop through device 6.Device not subject to abrasion due to low gas velocity 7.Provide incidental cooling of gas stream 8.Temperature and pressure limitations are only dependent on the materials of construction 9.Dry collection and disposal  Gravity Settling Chamber Disadvantages of Settling Chambers: 1. Relatively low particulate matter collection efficiencies, particularly for particulate matter