FM 3

• Filtration

1.Rate of filtration For filtration 2. Constant pressure filtration At constant rate filtration, linear velocity dv/Adt  is constant. Therefore,

• Specific cake resistance
Linear velocity of filtrate is independent of L (distance from filter
medium), since filtrate must pass through entire cake, V/A is same for all layers. • Bonds law
• 1. Equation for bonds law 2. Bonds law with work index • Rittinger’s law • Various diamters defined in solid operation and handling

1.Mass mean diameter 2.Volumetric mean diameter 3. Arithmetic mean diameter 4. Surface-Volume mean diameter • Thickness of pressure vessels 1. Cylinder

2. Sphere   5. Conical section enclosure • Sphericity • Critical rotational speed for a ball mill • Cyclone separator 2. Collection efficiency of cyclone separator • Angular velocity w (omega) in rad/sec (radian per second) • Screen effectiveness • Cumulative mass fraction
Cumulative mass fraction of particles is fraction of weight of particles having a size smaller than a given diameter of the screen. 2. Operations involving Particulate solids (Fluid
Particle Mechanics)

1. Filter

2. Separating particles

• For separating particles of different densities, the differential settling method uses a liquid sorting medium of density intermediate of those of the heavy and light particles

3. Filter cake resistance

• Specific cake resistance

For cake resistance 4. Tyler series

• Tyler series for screens is based on 200 mesh sieve opening 0.074mm and increasing uniformly @scale ratio of 2^1/4. Therefore, the ratio of aperture size of screen to that smaller screen is (2^1/4)2 = 2^1/2.