In the production of gypsum products, hemihydrate gypsum needs less water than common gypsum and has higher density and strength. The steam distilled from the saturated steam in the autoclave is usually semi hydrate gypsum, also known as high-strength gypsum powder; the result is semi hydrate gypsum, also known as building gypsum, which is produced in the pot or rotary kiln. Chemical gypsum is an industrial by-product, which has the same characteristics as natural gypsum and does not need much processing. The slurry weight of hemihydrate gypsum is mixed with water to form a new dihydrate gypsum, which solidifies and hardens rapidly in the drying process to obtain strength, but softens when encountering water.

　　脱硫石膏粉是一种很常见的石膏粉，实际上是指两种硫酸钙结晶水，一般作为单独的晶体颗粒。脱硫后的石膏粉成分与天然石膏基本相同，但纯度和细度较高。那么脱硫后的石膏粉有什么作用呢?

　　Desulfurization gypsum powder is a kind of very common gypsum powder, actually refers to two kinds of calcium sulfate crystal water, generally as a separate crystal particle. The composition of gypsum powder after desulfurization is basically the same as that of natural gypsum, but its purity and fineness are higher. So what is the function of gypsum powder after desulfurization?

　　脱硫石膏粉具有广泛的用途。在质量要求不高的情况下，可作为建筑材料和板材使用。一般来说，在建筑行业中脱硫石膏粉经常用作水泥缓凝剂、石膏粉、石膏块等。在实际施工过程中，必须在硅酸盐水泥中加入脱硫石膏粉，才能更好地控制水泥的凝结时间。目前国内水泥用量很大，因此脱水石膏粉的应用也很多。

　　Desulfurization gypsum powder has a wide range of uses. In the case of low quality requirements, it can be used as building materials and plates. Generally speaking, desulfurization gypsum powder is often used as cement retarder, gypsum powder, gypsum block and so on in the construction industry. In the actual construction process, desulfurized gypsum powder must be added to Portland cement to better control the setting time of cement. At present, a large amount of cement is used in China, so there are many applications of dehydrated gypsum powder.

　　生产石膏的原料主要是含硫酸钙的天然石膏(又称原石膏块)或含硫酸钙的化学副产品和废渣，如磷石膏、氟石膏、硼石膏。化学式是Caso4.2H2O，也被称为二水石膏。天然二水石膏在不同温度下煅烧可得到不同种类的食用石膏粉和工业石膏。如建筑石膏粉在107 ~ 170℃干燥条件下可加热成天然二水石膏。

　　The raw materials for gypsum production are mainly natural gypsum containing calcium sulfate (also known as original gypsum block) or chemical by-products and waste residues containing calcium sulfate, such as phosphogypsum, fluorogypsum and boron gypsum. The chemical formula is caso4.2h2o, also known as dihydrate gypsum. Different kinds of edible gypsum powder and industrial gypsum can be obtained by calcining natural dihydrate gypsum at different temperatures. For example, the building gypsum powder can be heated to natural dihydrate gypsum under the dry condition of 107 ~ 170 ℃.

　　以上是济南石膏粉厂家小编为大家介绍的相关内容，想要了解更多内容，欢迎访问网站：//www.gochiism.com

　　The above is the relevant content introduced by Jinan gypsum powder manufacturer. If you want to know more, please visit the website: //www.gochiism.com