Mélangeur intensif PMD-VC
Mélangeur stationnaire pour le traitement de grands lots
The PMD-VC intensive mixer is a large-volume stationary mixing and dispersing unit for processing medium- to high-viscosity product batches. It is successfully employed primarily in the coatings, printing inks, wall paints, pigments, and construction industries. (VC – Variable Capacity – variable effective volume).
The special conical geometry of the mixing tank allows the processing of partial batches from approx. 25% of the stated effective volume, and thus guarantees great flexibility.
The compact design with the proven drive concept facilitates the mounting of a Big Bag discharger and additional feeding system directly on the machine. It is therefore ideal for integration into automated production processes.
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Technique
Conception Standard
- Pièces en contact avec le produit réalisées en acier inox 1.4301
- Conception cuve conique
- Entraînement Dissolver par la partie supérieure
- Dispositif de levage et descente hydraulique pour l'entraînement du Dissolver
- Entraînement Ancre par la partie inférieure
- Arbre du Dissolver réalisé en acier inox résistant
- Soufflets sur l'arbre et la colonne de levage
PMD-VC Intensive Mixer
Principle of Operation
The product is processed in the mixing tank by the two mixing and dispersing tools, the anchor agitator and the dispersion disk. The multi-arm anchor agitator with scrapers moves, mixes and feeds the product to the rapidly rotating dispersion disk.
During the dispersion phase, the toothed disk is moved up and down in the tank. The interaction of the two mixing tools creates an intensive vortex, allows a fast product intake and guarantees a homogeneous product. Separation of the functions mixing and dispersing results in an extremely energy-efficient process.
The scraper blades mounted on the anchor agitator provide for a residue-free emptying of the tank.
Loading Options
Solids are added via either a sack feed station, a BigBag station or silos. The NETZSCH ADS (Automatic Dispersion System) offers a great advantage when feeding solids via a silo facility. Charging by means of ADS facilitates optimum, fast and agglomerate-free dispersion in conjunction with a defined addition of solids and automatic adjustment of the dispersion disk position.
ADS – Auto Dispersion System
The ADS is preferably used with automatic solids processing. Through the acquisition of various machine parameters, the height of the toothed disk is automatically adjusted during solids addition such that an optimum vortex is generated. This achieves immediate wetting of the solids, prevents agglomerates and produces a homogeneous product within the shortest dispersion and mixing time. The ADS consists of the following features:
Advantages
With the ADS, fast, controllable and reproducible solids processing is possible (> 1 t / min). It thus ensures a consistent product quality with the shortest dispersion time. „Overfilling“ of solids, which generally leads to agglomeration and/or sedimentation, is precluded.
PMD-VC Intensive Mixer - Don‘t just mix
Batch Control
Prerequisite for automatic batch systems are weighing and dosing systems that record the quantities of individual components fed. The dosing of the individual components takes place in a preset order and quantity according to the specification of stored formulation parameters. Likewise, the dispersion times, filling and cleaning cycles run according to preset parameters. The process sequence with the batch controller also allows small manual additions, which must be confirmed on the user interface. After completion of the production process, a log can be generated automatically for each batch.
Weighing System
The intensive mixers can be equipped with load cell systems for floor or platform installation.
Cleaning System
The PMD-VC mixer can be equipped with a fully-automatic cleaning system (CIP – Cleaning In Place), for which no disassembly of machine parts is necessary. The cleaning is made by cleaning heads in the tank lid, along with integrated cleaning nozzles in the tank wall and base.
Mixer sizes
| Type PMD-VC | Working capacity | Minimum liquid load | Disperser drive | Mixer drive |
|---|---|---|---|---|
| PMD 2500 VC | 2,500 Liter | ~ 600 Liter | 90 / 110 kW | 5.5 kW |
| PMD 5000 VC | 5,000 Liter | ~ 1,200 Liter | 110 / 132 kW | 7.5 kW |
| PMD 7500 VC | 7,500 Liter | ~ 1,800 Liter | 132 / 160 kW | 11 kW |
| PMD 10000 VC | 10,000 Liter | ~ 2,500 Liter | 160 / 200 kW | 11 kW |
| PMD 15000 VC | 15,000 Liter | ~ 3,750 Liter | 200 / 250 kW | 15 kW |
| PMD 20000 VC | 20,000 Liter | ~ 5,000 Liter | 300 / 360 kW | 22 kW |
*Intermediate sizes on request
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