You are in browse mode. You must login to use MEMORY

level: Level 12

Questions and Answers List

Question	Answer
➢ Mechanical process of reducing the size of the particles or aggregates ➢ It involves cutting, chopping, crashing, grinding, milling, micronizing or trituration	COMMINUTION
Basic action in comminution:	• Attrition • Rolling • Impact
it involves breaking down materials by rubbing action between two surfaces	Attrition
uses a heavy rolling member to crash and pulverized the material	Rolling
involves the operation of hammers or bars at a high speed	Impact
Large Scale Comminution Equipment:	1 Intermediate Grinders - rotary cutters, disk, hammer, roller and chaser 2 Fine grinding mills -balls, rod, hammer, colloid, and fluid energy mills
1 - It will provide materials with a particle size between 0.841um to 0.074um 2 - Done in a high mechanical speed and centrifugal classifier - It will produce particle that will pass through 200 mesh sieve and micron range	1 Intermediate Grinders: rotary cutters, disk, hammer, roller and chaser 2 Fine grinding mills: balls, rod, hammer, colloid, and fluid energy mills