Mixing and stirring
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Transcript of Mixing and stirring
MIXING &STIRRING
Specialized in process installations for dry materials
and liquids
Fields of applicationLiquid-liquidSolid-solidSolid-liquid (solid)Solid-liquid (liquid)
Liquid-liquid
LIQUID
WATERMIXTURE
FI
SOLID ADDITIVES
FI
LIQUID ADDITIVES
LIQUID
Storage
Dosing
mixing
Liquid-liquidSoap emulsionsFoodPolymerizationChemistry
Fields of applicationLiquid-liquidSolid-solidSolid-liquid (solid)Solid-liquid (liquid)
Solid-solid
M
MACRO COMPONENTSMINOR COMPONENTSMICRO COMPONENTS
M M M
PRODUCT
StorageMacrocomponenten
Storage Minor-componenten
Storage Micro-componenten
Solid-solid
Construction materials Construction chemistryFoodFeed / pet food
Fields of applicationLiquid-liquidSolid-solidSolid-liquid (solid)Solid-liquid (liquid)
Solid-liquid (solid)
FILLINGAGENT
M
LIQUID
FI
FILLING AGENTSSOLID ADDITIVES
LIQUID ADDITIVES
Storage
Dosing
Mixing
FI
WATER
Solid-liquid (solid)
Construction materialsFoodWaste processing / sludge processing
Fields of applicationLiquid-liquidSolid-solidSolid-liquid (solid)Solid-liquid (liquid)
Milk of lime
LIME
M
FI
LIMEWATERMILK OF LIME
`
Storage, dilution& circulation
Storage
Dosing
Preparing
Scrubber
Milk of limeWater decarbonationWashing incineration gasesChemistry
Glue preparation
RAWMATE-RIAL
M
FI
FI
TI
STEAMWATERSUSPENSION
RAW MATERIALSADDITIVES
Storage
Dosing
Preparing
Cooling &viscosity
Cooking
Storage &circulation
Glue preparationPaper & cardboardPressed and glued wood
Paint
FILLINGAGENT
M
MEDIUMWATERPAINT
FI
FILLING AGENTSSOLID ADDITIVES
LIQUID ADDITIVES
FI
MEDIUM
Storage
Dosing
Dissolving
Transport
PaintWater basedSolvent based
Compounds
FILLINGAGENT
M
POLYMERWATERCOMPOUND
FI
FILLING AGENTSSOLID ADDITIVES
FI
LIQUID ADDITIVES
POLYMER
Storage
Dosing
Mixing
CompoundsCarpetsFinishing materials (leather, paper, metal)
Solid – liquid: suspensions
Not a solution – contains solid particlesSpecific behavior• Abrasive• RheologyPrecipitation• Stabilizers (feed / pharmacy /
consumables)• Mechanical (processing)Stability equal to mixing quality
Thesis:
Mixing vs. stirringStirring• Similar behaving components• Mostly at low agitating speedMixing• Non-similar behaving components• Dispersing & suspending solid materials• Slurries• Mostly at quick agitating speed
PRessure vs. capacity
0,00
2,50
5,00
7,50
10,00
12,50
15,00
17,50
0,00 10,00 20,00 30,00 40,00 50,00 60,00 70,00Capacity
Pres
sure
Water Suspension Slurry
Viscosity vs. capacity
0
100
200
300
400
500
600
700
800
900
1000
1100
1200
1300
1400
1500
0 10 20 30 40 50 60 70Capacity (m³/hr)
Visc
osity
(Cp)
Newtonian Shear thinning
Influence RheologyNewtonian vs. rheopact Slurry vs. suspension
Influence viscosity400 Cp 1.500 Cp
In-line vs. mixing tank
Constant capacitiesGood mixableDilutionDanger for plugging
Buffer for variations in capacityNon-similar behaving components
Continuous vs. batch
Preventing quality fluctuationsShort delay
Mixing time influences qualityDosing accuracy
Slow vs. quick agitation
Keeping in moveRemaining homogeneity (reaction)
MixingIncluding componentsReducing particle size
N2
0°
315°
N4
N7N5
N6N3N1
30°
45°
90°
135°
180°
270°
Mixer design
Placement nozzles vs. agitator
Agitator
Mixer designFlow profiles:• Placement agitator• Tank shape• Helix type• Influencing flow profile
Preventing dead space• Also regarding
dischargeGood agitating defines stability
Mixer design
Eccentrically placed agitator vs. baffles
Mixer design
Multiple agitators for high viscositiesScraper blades preventing polutionZ-blade for dispersing
Process optimization
Parallel operations on different unitsa b c d e0
t (min)f g
TrBL1H34
TrBL1H12
Menger BLM2
Menger BLM1
Weger DW2
Weger DW5
Zendvat 4
Zendvat 3
Zendvat 1
Handstort BS1
Zendvat 2
Weger DW4
Recipiënt CW1
Weger FCD4
Weger FCD3
Weger FCD1
Weger FCD2
Handstort BS2
Weger BSM12
TRN05
TRM05
Batch-schema
HOB404
Tank HOT504
Tank HOT507
Vl PWP HOT
Vl PWP COLD
Ketting TRL35
TR06DW05S1
Process optimization
Parallel operations within a unit
Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 Phase 6 Phase 7
C CM40xF
P CM40xC
C CM40xK
C CM40xL
C CM40xB
Temps total max 30 min
lait de chaux
H2O process
Chaux (CaO)
H2O scrubber
Comman
de vi
dang
e
Poids t
are
C CM
40xO
prédosage de l'eaudosage de la chaux et de l'eau de réaction
P CM40xE
Ajustementconcentration
MélangeP CM40xH
Attendre et agiterVidange Rinçage
Eau de rinçageP CM40xT
Agitation maxi
Arrêt ventilateurscrubber
Tête de lavageP CM40xR
P CM40xB
C CM40xG
C CM40xM
C CM40xH
P CM40xJ
Poids réel:C CM40xN
Augmentation réel:C CM40xX
ConclusionDesign criteria dependent of applicationSuspensions can seem easy to handled, but a lot of attention on the details is necessaryNeed for a sparring partner with a lot of experience and a wide reference perspective
Your PROCESS is our PROJECT
ConsultingEngineering• Mechanical• ElectricalManufacturingProcess controlErectionElectrical installationMaintenance & service