石膏粉又叫腻子粉，主要用来砌墙体，勾缝，墙面找平等;建材方面可做石膏水泥;食品方面可以做酵母激活剂，被称为“食品添加剂硫酸钙”。还可以作为医用食品添加剂、硫酸生产、油漆填料等等材料。石膏粉一般在我们装修中是作为处理墙面的基层，填平我们的墙面的材料，石膏粉是一种广泛应用于建筑、建材和石膏水泥的材料。济南石膏粉生产工艺咋样呢？

Gypsum powder, also known as putty powder, is mainly used for building walls, pointing and wall leveling; Gypsum cement can be used for building materials; In food, it can be used as yeast activator, known as "food additive calcium sulfate". It can also be used as medical food additives, sulfuric acid production, paint fillers and other materials. Gypsum powder is generally used in our decoration as the base layer for wall treatment and the material for filling our walls. Gypsum powder is a material widely used in construction, building materials and gypsum cement. What is the production process of gypsum powder in Jinan?

(1)煅烧块石膏，然后再粉碎。

(1) Calcined gypsum block and then crushed.

这种方法先将块石膏置于土窑、室窑或立窑中进行煅烧，然后在轮碾机或球磨机等粉碎设备中粉碎和筛分，便得到所需粒度的熟石膏粉。这种方法的优点是设备简单，烧后的块石膏粉碎效率高。缺点是石膏煅烧不均匀，容易造成局部死烧和生烧现象，同时也容易混入煤灰等杂质。

In this method, the block gypsum is first calcined in the earth kiln, chamber kiln or shaft kiln, and then crushed and screened in the grinding equipment such as wheel mill or ball mill to obtain the gypsum powder with the required size. This method has the advantages of simple equipment and high crushing efficiency of burnt gypsum block. The disadvantage is that the gypsum calcination is uneven, which is easy to cause local dead burning and raw burning, and it is also easy to mix with impurities such as coal ash.

(2)煅烧已粉碎的石膏粉。

(2) Calcination of crushed gypsum powder.

这种方法是把生石膏先破碎并在轮碾机或鼠笼式粉碎机内粉碎，然后送到炒膏锅或回转窑内煅烧，烧后再进行筛分使用。这种方法优点是粉磨过的颗粒烧得比较完全，质量较高，缺点是生石膏的水分大，粉碎效率低，炒石膏时搅拌不易均匀。

This method is to crush raw gypsum first and crush it in a wheel mill or squirrel-cage crusher, then send it to a frying pan or rotary kiln for calcination, and then screen it for use. The advantages of this method are that the milled particles are completely burnt and of high quality. The disadvantages are that the raw gypsum has high moisture content, low crushing efficiency, and it is not easy to stir evenly when frying the gypsum.

(3)生石膏的粉磨和煅烧同时进行。

(3) The grinding and calcination of raw gypsum are carried out at the same time.

这种方法把粗碎的块石膏送入风扫式快转粉磨机中粉碎，悬浮状态的石膏粉在热气烧管中呈悬浮状态煅烧，再经风力选粉而制得所需石膏粉。这种方法的优点是产量大，炒膏效率高，所得快速炒制的熟石膏凝结快，强度低，但设备复杂。

In this method, the coarse gypsum blocks are sent to the air-swept quick-rotating powder mill for crushing, and the suspended gypsum powder is calcined in a suspended state in the hot gas burning tube, and then the required gypsum powder is prepared by wind power separation. The advantages of this method are large output, high efficiency of frying plaster, quick setting and low strength of the obtained quick-fried plaster, but the equipment is complex.

(4)先将石膏粉碎成细颗粒砂状，然后炒制，炒制以后再进行粉碎和筛分。

(4) First, the gypsum is crushed into fine sand, then fried, and then crushed and screened.

用一般鼠笼式粉碎机粉碎，风选筛分。这种方法的优点是具有前面两种方法的优点，但工艺过程较为复杂。这种方法在国内陶瓷行业中仍应用较广。

Crush with a general squirrel-cage pulverizer, and conduct air separation and screening. The advantage of this method is that it has the advantages of the previous two methods, but the process is relatively complex. This method is still widely used in domestic ceramic industry.

(5)压蒸法炒膏。

(5) Stir-fry paste by autoclaving.

这种方法先把粗碎后块度为25——50mm的生石膏先在60℃的热气中预热，然后放在压力锅内以1，3大气压饱和过热蒸气(125℃)密闭蒸煮5——7小时，然后再通入200℃的热干气，直至排出的是热干气为止，得蒸气压半水石膏。这种半水石膏呈a晶型，用这种半水石膏翻的模型的强度非常高，但这种炒制方法设备较复杂。

In this method, the raw gypsum with the size of 25-50mm after coarse crushing is preheated in the hot air of 60 ℃, then placed in a pressure cooker and steamed for 5-7 hours with saturated superheated steam (125 ℃) at 1, 3 atmospheric pressure, and then injected with hot dry gas at 200 ℃ until the hot dry gas is discharged, and the vapor pressure hemihydrate gypsum is obtained. This kind of hemihydrate gypsum is in the form of a crystal. The strength of the model turned by this kind of hemihydrate gypsum is very high, but the equipment of this method is complex.

概括来说，石膏粉生产工艺主要有以上这5种，不论何种方法，熟石膏粉的细度一般都要求80——120目筛的余量不超过0.5%。更多相关产品使用事项就来联系我们//www.gochiism.com咨询了解吧！

Generally speaking, there are five main gypsum powder production processes. Regardless of the method, the fineness of gypsum powder generally requires that the margin of 80-120 mesh sieve should not exceed 0.5%. Contact us for more information about the use of products //www.gochiism.com Ask about it!