1 solids conveying equipment ulrich, 2004 apron auger belt bucket elevator continuous flow pneumatic...
TRANSCRIPT
1
Solids Conveying Equipment
Ulrich, 2004
• Apron• Auger• Belt• Bucket elevator• Continuous flow• Pneumatic• Vibratory
2
Solids Conveying Equipment
Ulrich, 2004
• Apron• Auger• Belt• Bucket elevator• Continuous flow• Pneumatic• Vibratory
3Ulrich, 2004
4
Heuristics17 Oct 12
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Solids Conveying Equipment
Ulrich, 2004
• Apron• Auger• Belt• Bucket elevator• Continuous flow• Pneumatic• Vibratory
6
Pneumatic Conveying
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
Significant pressure drop is required to accelerate the solids
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Pneumatic Conveying
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
Solids are suspended if the gas velocity is above the minimum.
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Pneumatic Conveying
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
Data for various solids.
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Pneumatic Conveying
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
Solid particle velocities, us, are related to terminal velocity, uo, and the gas velocity, uG. [all in m/s]
s
ou
osG
uuu
25.7468.0
o
s
air
x
uF
u
P
P 28052
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Comminution (size reduction) Equipment
• Compression• Impaction• Attrition (rubbing)• Cutting
11Ulrich, 2004
12Towler & Sinnott, 2008
13Ulrich, 2004
Table 4.5a Criteria and data for rapid design of crushing and grinding equip.
14Ulrich, 2004
Table 4.5a Criteria and data for rapid design of crushing and grinding equip.
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Comminution (size reduction) Equipment
Jaw Crusher
Gyratory Crusher
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Comminution (size reduction) Equipment
Roll Crusher
Disk / Attrition Mill
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Comminution (size reduction) Equipment
Rod Mill
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Comminution (size reduction) Equipment
Ball Mill
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Comminution (size reduction) Equipment
Jet Mill
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Comminution (size reduction) Equipment
Rotary Cutter
21Ulrich, 2004
Table 4.5b Typical materials processed in different types of crushing and grinding equip.
22Towler & Sinnott, 2008
23Wikipedia
24Towler & Sinnott, 2008
25
Agitators and Mixing Equipment
• Suspend solids• Disperse gases and liquids• Emulsify one liquid in another• Promote heat transfer• Blending two or more materials together
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Ulrich, 2004
Table 4.16 Criteria and Data for the Preliminary Design of Agitators and Mixers
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Ulrich, 2004
Table 4.16 Criteria and Data for the Preliminary Design of Agitators and Mixers
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Ulrich, 2004
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Agitators and Mixing Equipment
Fluid mixing
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
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Agitators and Mixing Equipment
Fluid mixing: Baffles
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
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Agitators and Mixing Equipment
Fluid mixing: off-center
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
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Agitators and Mixing Equipment
Common Impellers
Coulson and Richardson’s Chemical Engineering Volume 1, 6th ed.
33
Heuristics
Questions?