Whether it is flue gas desulfurization or in-furnace calcium injection desulfurization, the desulfurization medium is limestone powder, so the preparation of limestone powder becomes a prerequisite for thermal power plant desulfurization to improve desulfurization efficiency.

Limestone powder as a desulfurizer has the following advantages:

1. Wide source

2. Low price

3. High desulfurization efficiency

4. Stable and good desulfurization effect

5. The product can be comprehensively utilized

6. Low corrosion to equipment