A coated calcite machine is likely a piece of equipment used to apply a coating (such as polymers, resins, or other surface treatments) to calcite particles or surfaces. Calcite (calcium carbonate, CaCO₃) is a common mineral used in industries like paints, plastics, paper, construction, and pharmaceuticals. Coating calcite can enhance its properties, such as:
– Improved dispersion in polymers or liquids
– Better compatibility with hydrophobic matrices (e.g., plastics)
– Enhanced durability or weather resistance
– Reduced dust formation
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Possible Types of Coated Calcite Machines:
1. Surface Modification Systems:
– Uses mechano-chemical processes or spray coating to apply stearic acid, silanes, or titanates.
– Example: High-speed mixers with heating for polymer coatings.
2. Fluidized Bed Coaters:
– Suspends calcite particles in air while spraying a coating solution (common in pharmaceutical or fine powder applications).
3. Rotary Drum Coaters:
– Tumbles calcite with coating agents in a rotating drum for even distribution.
4. Spray Dryers:
– If the coating is applied via a liquid solution that needs drying (e.g., for nano-coated calcite).
5. Extruder-Based Systems:
– For integrating coated calcite into polymer matrices during compounding.
Key Manufacturers & Suppliers:
Companies like Hosokawa Micron, NETZSCH, and HUNING Maschinenbau offer machines for mineral surface treatment. Smaller lab-scale coaters are also available from firms like Caleva or Lödige.
Would you like details on a specific type of coating process or machine model?