Calcium Carbonate Grinding Mill Plant

About Calcium Carbonate Powder Mill Plant

Calcium carbonate (CaCO₃) is a versatile mineral used in industries ranging from plastics and paper to pharmaceuticals and construction. To meet the demand for ultra-fine calcium carbonate powder (typically 200–2500 mesh), a well-designed grinding mill plant is essential. A calcium carbonate grinding mill plant is a specialized production line that transforms raw calcium carbonate ore (limestone, marble, or chalk) into fine powder. The process involves crushing the raw material, grinding it to the desired fineness, and collecting the finished powder—all while ensuring particle uniformity and purity, which are critical for end-use applications (e.g., as a filler in plastics or a coating in paper). The HGM micro powder grinding mill is the core of the entire production plant.

Main Components of Calcium Carbonate Grinding Mill Plant

A typical calcium carbonate grinding plant includes the following key equipment and processes:
1. Raw Material Storage & Feeding
• Limestone or marble is stored in silos or bins.
• A vibrating feeder or belt conveyor controls the feed rate into the grinding system.

2. Crushing (if needed)
• Large chunks of limestone are first crushed by a jaw crusher or hammer crusher to reduce them to sizes suitable for grinding (usually below 20–30 mm).

3. Grinding Mill (Core Equipment)
• This is the heart of the plant where calcium carbonate is ground into fine powder. Ultrafine Mill or Ultrafine Vertical Mill is for producing fine powders (325–2500 mesh or even finer).

4. Classifier (Air Classifier or Mechanical)
• Separates fine particles from coarse ones.
• Ensures the final product has the desired particle size distribution.

5. Dust Collection & Air Filtration
• A baghouse dust collector or cyclone separator captures fine powders and ensures clean air emission.

Grinding Mill Plant Specification Sheet

Capacity		0.5-5 tph	1.2-8 tph	1.3-10 tph
HGM grinding mill	Model	HGM80	HGM1028	HGM1036
	Main grinder(kw)	55	110	110
	Blower(kw)	45	75	75
	Classifier(kw)	15	22	22
Hammer crusher	Model	PC400X300	PC600X400	PC600X400
Hammer crusher	Motor(kw)	7.5	18.5	18.5
Bucket elevator	Model	T160X7m	T250X10m	T250X10m
Bucket elevator	Motor(kw)	3	4	4
Buffer bin	Model	LC1.2X1	LC1.5X1.2	LC1.5X1.2
Feeder	Model	GZG-1	GZG-1	GZG-1
Feeder	Motor(kw)	0.25	0.25	0.25
Pulse dust collector	Model	DMC-120	DMC-232	DMC-232
Soundproof room	Qty	1	1	1
Screw conveyor	Model	LS219X2m	LS219X4m	LS219X4m
Screw conveyor	Motor(kw)	2.2	2.2	2.2
Automatic discharge valve	Model	BFQ160	BFQ300	BFQ300
Automatic discharge valve	Motor(kw)	0.75kw x 2	2.2kw x 2	2.2kw x 2
Electric control cabinet	Qty	1	1	1