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