Precipitated Calcium Carbonate is a white, odourless powder. The most common existence of calcium carbonate is in the form of limestone, marble, and chalk.
Calcium carbonate is practically insoluble in water. Calcium carbonate has many industrial applications and is also an antacid in medicines.
There are two ways to use calcium carbonate- PCC and GCC.
PCC (precipitated calcium carbonate) is produced with the slurry of limestone. GCC (ground calcium carbonate) is produced with the mining of calcium carbonate.
To make the calcium carbonate industrial-ready, it undergoes several processes. There are mainly three different machines for processing calcium carbonate.
Mega mills grind the calcium carbonate through force. The hammer mill crushes the particles and acts as secondary reduction equipment.
The calcium carbonate ore is rolled in the grinding rollers. Centrifugal force propels the material even further to the edge.
Due to the force, the material falls into the grinding chambers. Here the calcium carbonate is pressed, ground, and crushed.
A high-speed rotor blows air with immense force.
Industries have different demands for particle size. The air blower separates the unqualified particles from the others.
The qualified particles rise and move to the cyclone powder collector. The fine powder clings to the surface of the filter bags.
The vibrations of filter bags make the powder fall. The finished powder has exquisite quality.
An air classifier is an industrial machine that separates particles by the combination of size, shape, and density.
The air classifiers either work alone or with grinding mills. The air classifiers separate calcium carbonate powder from different size particles via centrifugal force.
They exert variable aerodynamic drag forces which divide the particles according to their density and diameter.
Within the air classifier mills, the grinding and milling of the calcium carbonate are conducted in a closed circuit with air classifiers.
The design of grinding depends on factors such as impact, extrusion, friction, shear, and a combination of various forces.
The equipment for processing includes Raymond mills, Vertical mills, Ring roller mills, and Ball mills. These mills are accompanied by air classifier mills.
Different crushing principles require different machines which depend on the grain size and particle type.
The high-speed grinding motors reduce the size of calcium carbonate ore.
In the Raymond mills, the powder is sent between the roller and ring. High pressure grinds the material.
The fan sends the powdered material into the analyzer. The remaining particles (not powdered) go for re-grinding.
The raw material (calcium carbonate ore) is added to the hollow cylinder. The cylinder contains grinding media of various diameters.
The cylinder rotates along the horizontal axis. The centrifugal and frictional force crushes the raw material because of drop or roll-down action.
Summing Up
Different industries have different purposes to buy calcium carbonate. Shree Karni Chemicals provides the best quality precipitated calcium carbonate in India.
We are one of the leading PCC manufacturers in Rajasthan. Our team works diligently to provide premier quality.
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