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Industrial Applications

Green Desulfurization Limestone Powder Processing

What’s Limestone?      


 Limestone and lime mainly consists of calcium carbonate (CaCO3), which is generally used as building materials or industrial raw materials. Limestone is directly processed into stone and fired into lime, then mixed with water to become slaked lime  Ca(OH)2. Slaked lime is formulated into lime slurry, lime paste, etc., used as a coating material and brick adhesive. There are lime and slaked lime, of which lime consists mainly of calcium oxide, is generally white block, or light gray or light yellow with impurity. Lime absorb moisture or water to become slacked lime, with main ingredient Ca (OH)2. Slaked lime is formulated into lime slurry, lime paste, lime mortar, etc., as coating materials and brick adhesives. Cement is calcined of limestone and clay, etc.. 

Application and Usage of Limestone 

Limestone is pulverized by powder milling machine, and separated into four fineness levels. 1. Level one powder, is used for anhydrous calcium chloride, sodium dichromate, glass and cement production. It is also used for building materials and poultry feed. 2.Level two powder, is used for anhydrous calcium chloride, glass, rubber filler, paint filler, and building materials. 3.Level three powder, is used for plastic, paint putty, plywood and paint filler. 4.Level four powder, is used for wire insulation layer filler, rubber molded products. 5. Power plant desulfurization absorber.. 

Limestone Powder Grinding Process and Equipment Selection   

Power Plant Desulfurizated Limestone Powder is the most popular application in limestone grinding.

The limestone material composition analysis

CaO MgO Al2O3 Fe2O3 SiO2 so3 Burning amount loss
52.87 2.19 0.98 1.08 1.87 1.18 39.17 0.66

Lime stone powder, mill selection scheme 

Production Specification (Mesh) 200mesh, D95 250mesh, D90 325mesh, D90
Mill Selection Scheme
  • Vertical Grinding Mill or Large Raymond Mill

1. power consumption per ton of products: 18 ~ 25kWh/t, according to the requirements of raw materials and products;

2. select the mill according to the output and fineness;  

3. main applications: power desulfurization, blast furnace smelting solvent, etc..

Limestone Powder Grinding Process


Stage 1: Raw Material Crushing 

Limestone in big sizes shall be processed in crusher until them achieve the required material fineness (15mm-50mm) for next stage grinding.

Stage 2: Particle Grinding

After crushing, the small particles is lifted by the bucket elevator to the material silo, and then shipped by vibration feeder into roller mill for grinding.

Stage 3: Powder Separating

After grinding, the mixture of particle and powder are leveled in separator, where qualified powder with required fineness shall be chosen to next stage, and the rejected will go back rolling mill for additional milling.

Stage 4: Final Powder Collecting  

After Powder grinding, the powder is going with the wind inside the pipes to Pulse Collector, where the qualified powder is shipped via disease port to Final Product Cage, and then transported by power truck or packaged by packing machines.

bag paking machine

We offer a lime stone powder, a complete set of solutions, let you of the lime stone powder project entire journey carefree!

Limestone Powder Grinding Classic Cases

Customer Site

limestone Raymond grinding mill, Raymond grinding mill

One Limestone Grinding Plant

Processing Material: Limestone, Lime

Finish Fineness: 325 Mesh, D97

Production: 8-10 ton/hour 

Machinery Equipped: HC1300 (1 unit)

Customer Feedback 

When processing same specified powder, HC1300 Mill have 2 ton/hour more production than traditional 5R Raymond Mill. Moreover, it is automatic controlled by workers sitting in the Center Control Room, with low energy consumption, economic operational cost, and competitive finish powder. We are so satisfied with the free service including design, installation guidance and examination during the whole project.



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