Sparkler Fluid Energy Pulverisers

SPARKLER FLUID ENERGY PULVERISERS / MICRONISERS
(AIR JETMILLS)

Introduction | Engineering Features | Material Grinding Characteristics | Model & Features | Contact

INTRODUCTION

Fluid Energy pulverising has attained importance for pulverizing & classifying all sorts of hard, brittle, soft or agglomerate materials to low micron (1-10 micron) fineness with precise control of contamination in dry state. The technique has been found extremely effective and economical for grinding of materials either in laboratory or on large-scale production.

OPERATING PRINCIPLE

Sparkler Fluid Energy Pulverizers (FEP) has no moving parts. The functional principle of the pulverisers are depicted in the diagram shown above. The required input energy for the grinding action is derived from the compressed air, which is fed into the mill through two diametrically, opposed nozzles. The solid feed particles are air entrained through thwe happer in one of the nozzles and are accelerated to relatively great speeds, where they impact at high kinetic energy levels in an impact chamber, where the size reduction is effected by impact, attrition, compression and abrasion of opposing particles. The stream of pulverised particles in fluid suspension is directed tangentially into a statitc classification chamber . The finest particles (from 30to60%) having high ratio of surface to mass, spiral through a central opening in the rear face of the chamber as finished product in suspension. Final seperation from thhe fluid takes place in abag collector or cyclone and challenging vessel.

Those particles, which are oversized and have escaped fracture (40 to 70%) continue their path on the periphery of the classification chamber due to centrifugal force. On account of the second nozzle, the oversized product is swept out of chamber tangetially and recycled to the continuous grinding action with new I n feed material on a continuous basis.