Sphericity of pulverised coal is

More Questions from Mechanical Operations

• For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as
• For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is
• Grinding efficiency of a ball mill is of the order of __________ percent.
• Filtration capacity of a rotary drum vacuum filter depends upon the
• For efficient grinding, ball mills must be operated
• About 2-3 hp, power per gallon of a thin liquid provides vigrous agitation in an agitator. 'Power number' in agitation is given by
• The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be
• Dust collection efficiency of electrostatic precipitator can be as high as 99.9%. Maximum temperature and pressure of dust laden gas that can be cleaned in an electrostatic precipitator is respectively.
• In screen analysis, the notation +5 mm/-10 mm means particles passing through
• For the preliminary breaking of hard rock, we use a

Discussion & Comments