Natural gypsum and desulfurization gypsum the difference between the two

Natural gypsum and desulfurization gypsum the difference between the two

First, natural gypsum and the similarity of the desulphurization gypsum

1, hydration kinetics and condensation characteristics consistent;

2, the main mineral phases, seven variants into five kinds of form, physical and chemical performance is consistent;

3, natural gypsum and desulfurization gypsum no radiation, no harm to health.

Second, the natural gypsum and desulfurization gypsum differences

1, is not the same as the original physical condition: natural gypsum is glued together in clumps, and the desulfurization gypsum exist in single crystal grain; Desulfurization gypsum impurities and easy grinding large difference between the natural gypsum after grinding of coarse particles of impurities, and the desulfurization gypsum particles more for gypsum, fine particles of impurities, its characteristic is the opposite of natural gypsum;

2, particle size and size distribution, particle size of flue gas desulfurization gypsum are, on average, the distribution zone is very narrow, high fineness (more than 200 mesh), the particles are mainly concentrated in 30-60 mu m between, grading far worse natural gypsum grinding fine after gesso.

3, high water content, moisture content is in commonly 10%, even higher liquidity is poor, is only suitable for belt conveyor.

4, impurity composition differences, leading to the dehydration characteristics, easy to grind and after calcined gypsum powder on the macroscopic characteristics such as mechanical properties, rheological properties of different.

5, desulfurization gypsum output distribution more uniform throughout the country, especially the large consumption of gypsum products developed eastern region of desulfurization gypsum production is big, and the grade of desulfurization gypsum and high, generally over 90%; Thus make up for the high grade natural gypsum deposit of small, low production, its products far away from the consumption of major defects.