Particle Size Control - Minisplit Classifiers
Features and Benefits
Unit Classification system has been developed for research, “semi-tech” and small scale production applications and incorporates a feeder, classifier and product collection system.
• Operating range of 1 to 75 microns
• Available feed rate for 1 to 75 kgs/hr
• Excellent Sharpness of Cut (typically 3 micron band widths at 5 micron mean)
• Control of mean particle size within 0.5 micron
• Precise on-stream control of cut point variation of rotor speed
• Adjustable secondary air system for optimisation of classification efficiency
• Electrically controlled variable speed rotor drive system
• Visual read - out of operational settings
• Operates under suction promoting dust free environment
• Acoustic materials minimise noise emission
• All contact parts manufactured in stainless steel
• Optional screw or vibrating tray feeders available
• Feed and product bin capacities to suit customer requirement
• Portable/mobile
Operating Principles
• Feed material is introduced into the primary air stream by a variable rate feeder. Entrained feed material enters through primary air duct (1).
• Particles are introduced into a forced vortex generated within the machine by rotor (2).
• Particles below cut sizes pass through the rotor and exit through duct (3) with the entraining air for collection in the cyclone and bag filter.
• Coarse particles above the cut point migrate to the casing wall (4), and descend to the Coarse Discharge cone (5)
• Secondary rinsing air enters through a separate duct (6) in the classifier casing dispersing agglomerated fines giving improved product yield.
• Particles are classified within the vortex as a result of the interaction between centripetal and air drag forces.
• Cut point is determined by control of rotor speed and air flow
• Secondary air flow rate controls the residence time of particles within the separating zone and can be adjusted to give optimum classification conditions for widely differing materials.
• Fines and coarse fractions are collected in their respective containers.
• An integral induced draft fan provides conveying/classifying air for the entire system
Special Feature
The Minisplit Classifier can be supplied with interchangeable components enabling it to be converted to an Opposed Jet Fluid Energy Micronising System complete with integral classifier for the size reduction of a wide variety or materials.
