Mechanical Processes Flashcards
1
Q
Void Ratio
A
e = Vv (volume of voids)/Vs (volume of solids)
2
Q
Porosity
A
n = Vv (Volume of voids)/ Vm(volume of material)
3
Q
Horizontal Hammermil
A
central rotor with pinned radial hammers free to swing on pins, feed is gravity dropped onto hammer, discharge grate below which determines size of material
4
Q
Vertical Hammermil
A
Vertical shaft, material moves by gravity along sides
5
Q
Shear Shredder
A
used to cut large objects like tires
6
Q
Shredder Issues
A
substantial wear & tear
noise
explosions
disease transmission