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脫硫石膏與天然石膏的區別及成分比照

來源：http://www.wavc.cn 日期：2019-12-06 發布人：

　　原始物理狀態不一樣：天然石膏是粘合在一同的塊狀，而脫硫石膏以單獨的結晶顆粒存在；脫硫石膏雜質與石膏之間的易磨性相差較大，天然石膏經過粉磨后的粗顆粒多為雜質脫硫石膏脫硫。

　　The original physical state is different: the natural gypsum is a block bonded together, while the desulfurization gypsum exists as a single crystal particle; the grindability between the impurities of the desulfurization gypsum and the gypsum is quite different, and the coarse particles of the natural gypsum after grinding are mostly impurities desulfurization gypsum.

　　一、石膏與天然石膏的相同點

　　I. similarities between gypsum and natural gypsum

　　1、水化動力學和凝結特征分歧；

　　1. Differences in hydration kinetics and condensation characteristics;

　　2、主要礦物相、轉化后的五種形態、七種變體物化性能分歧;

　　2. The main mineral phases, five forms after transformation and seven varieties have different physical and chemical properties;

　　3、脫硫石膏與天然石膏均無放射性，不危害安康。

　　3. FGD gypsum and natural gypsum are not radioactive and do not harm health.

　　二、脫硫石膏與天然石膏的不同點

　　II. Differences between FGD gypsum and natural gypsum

　　1、原始物理狀態不一樣：天然石膏是粘合在一同的塊狀，而脫硫石膏以單獨的結晶顆粒存在；脫硫石膏雜質與石膏之間的易磨性相差較大，天然石膏經過粉磨后的粗顆粒多為雜質，而脫硫石膏其顆粒多的卻為石膏，細顆粒為雜質，其特征與天然石膏正好相反；

　　1. The original physical state is different: the natural gypsum is a lump bonded together, while the desulfurized gypsum exists as a single crystal particle; the grindability between the impurities of desulfurized gypsum and gypsum is quite different, the coarse particles of natural gypsum after grinding are mostly impurities, while the particles of desulfurized gypsum are mostly gypsum, and the fine particles are impurities, whose characteristics are just opposite to those of natural gypsum;

　　2、顆粒大小與級配：煙氣脫硫石膏的顆粒大小較為均勻其散布帶很窄，高細度（200目以上）、顆粒主要集中在30-60μm之間，級配遠遠差于天然石膏磨細后的石膏粉。

　　2. Particle size and Gradation: the particle size of FGD gypsum is relatively uniform, and its dispersion band is very narrow. The high fineness (above 200 mesh) and particles are mainly concentrated in the range of 30-60 μ m. The gradation is far worse than that of the ground gypsum powder of natural gypsum.

　　3、高含水量，含水量普通在10%左右以至更高，活動性差，只合適皮帶保送。

　　3. High water content. The water content is generally about 10% or higher, with poor mobility. It is only suitable for belt transportation.

　　4、雜質成分上的差別，招致其脫水特性、易磨性及煅燒后的熟石膏粉在力學性能、流變性能等宏觀特征上的不同。

　　4. The difference of impurity composition results in the difference of dehydration characteristics, grindability and mechanical and rheological properties of calcined gypsum powder.

　　5、脫硫石膏的產出在全國散布比擬平均，非常是石膏產品大量生產地的東部興旺地域脫硫石膏的產量也很大，而且脫硫石膏的品位又很高，普通都在90%以上；這樣就補償了我國高品位的天然石膏儲量小、產量低、其產品遠離生產地的嚴重缺陷。

　　5. The output of FGD gypsum is relatively average in the whole country, especially in the Eastern prosperous area where gypsum products are produced in large quantities, the output of FGD gypsum is also very large, and the grade of FGD gypsum is very high, which is generally more than 90%. In this way, it compensates for the serious defects of small reserves of high-grade natural gypsum, low output and far away from the production place.

　　1.脫硫石膏，硫石膏過FGD石膏，是對含硫燃料（主要是煤）熄滅后產生的煙氣停止脫硫凈化處置而得到的工業副產石膏。主要成分和天然石膏一樣為二水硫酸鈣，但是純度和細度更高。

　　1. FGD gypsum is an industrial by-product gypsum obtained by stopping desulfurization and purification of flue gas produced after sulfur fuel (mainly coal) is extinguished. The main component is calcium sulfate dihydrate as natural gypsum, but its purity and fineness are higher.

　　2.成分比照

　　2. Comparison of ingredients

　　項目 CaO SiO2 Al2O3 SO3 Fe2O3 MgO Loss 篩余(45μm)/%

　　Project Cao SiO2 Al2O3 SO3 Fe2O3 MgO loss (45 μ m) /%

　　天然石膏 31.5 4.3 1.73 41.1 1.15 1.30 17.2 8.8

　　Natural gypsum 31.5 4.3 1.73 41.1 1.15 1.30 17.2 8.8

　　脫硫石膏 31.6 2.7 0.7 42.4 0.5 1.0 19.2 1.0

　　Desulfurization gypsum 31.6 2.7 0.7 42.4 0.5 1.0 19.2 1.0

　　以上是濟南石膏粉廠家為大家介紹的相關內容，想要了解更多內容，歡迎訪問網站：http://www.wavc.cn

　　The above is the relevant content introduced by Jinan gypsum powder manufacturer. To learn more, please visit the website: http://www.wavc.cn

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