Vertical Roller Mill: Ideal FGD Limestone Grinding Mill for Power Plant FGD Desulfurization

Our energy-saving limestone vertical mill completes drying, grinding & classification in one unit, 30%-50% lower power than ball mill, 10–320t/h output for 80–325 mesh limestone powder for FGD wet desulfurization. Get custom quotation now.

Why Vertical Roller Mill Becomes Top Choice for Limestone FGD Powder Production

For power plant wet flue gas desulfurization (FGD), stable qualified limestone powder (normally 325 mesh /44μm) directly decides desulfurization efficiency. More factory owners replace traditional ball mills with vertical roller mills (VRM) for limestone grinding thanks to outstanding cost and efficiency advantages.

Working Principle:

The motor drives the grinding table to rotate via a reducer. Material falls from the feed inlet onto the center of the grinding table, while hot air enters the mill through the air inlet. Under the action of centrifugal force, the material moves toward the edge of the grinding table. As it passes through the grinding groove on the table, it is crushed by the rolling pressure of the grinding rollers. The crushed material is then swept up by the high-speed airflow at the nozzle ring at the edge of the grinding table. Coarse particles fall back onto the grinding table for regrinding. When the material in the airflow passes through the dynamic and static classifier, under the action of the rotating rotor, coarse powder is rejected back to the grinding table for further grinding, while qualified fine powder is carried out of the mill with the airflow and collected in the dust collector as the final product. Material containing moisture is dried during contact with the hot gas stream, achieving the required product moisture content.

Key Advantages Over Traditional Ball Mill

Remarkable Energy Saving: Power consumption cuts 30%~50% compared with ball mill, greatly lowering monthly electricity cost for large-scale FGD production lines.

Small Occupied Area: Compact vertical layout only takes half floor space of same-capacity ball mill, saving civil construction investment.

Flexible Fineness Control: Fineness adjustable between 80~325 mesh (180~44μm), perfectly match strict standard of wet FGD desulfurization limestone powder.

Wide Capacity Range: Single unit output from 10t/h to 320t/h, fit small, medium and large power plant desulfurization projects.

Main Application Scenarios of Our Vertical Roller Mill

Power plant FGD limestone powder preparation (core application, 325 mesh finished powder)

Cement plant raw material, slag, gypsum grinding

Non-metallic mineral powder processing: calcite, talc, calcium carbonate

Get Custom Vertical Mill Solution for Your Project

With over 20 years in vertical mill manufacturing, we provide one-stop service: equipment selection, process layout drawing, site installation guidance, after-sales training and global 7×24h remote technical support.

Send your raw material parameters and required hourly capacity, our engineers will tailor the optimal grinding plan and formal quotation within 24 hours.

📧 Email: margo@hfvrm.com | 🌐 Website: https://www.hengchengmill.com