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The gypsum powder production line is a natural dihydrate gypsum ore (raw gypsum) or industrial by-product gypsum (desulfurization gypsum, phosphogypsum, etc.) heated and calcined at a certain temperature and ground to dehydrate the dihydrate gypsum, and the β-hemihydrate gypsum is obtained. The main ingredient of the product is the building plaster (passed by plaster).

What is gypsum powder?

Gypsum powder is usually white, usually white, usually white, usually white, colorless, transparent crystal called transparent gypsum, and sometimes grayish yellow, light brown, etc. due to impurities.

The plaster strips are white and transparent. Glass luster, cleavage surface pearl luster, fibrous aggregate silky luster. The cleavage is extremely complete, and medium, and the cleavage piece is split into a diamond with an angle of 66 and 114. Crisp. Hardness 1.5~2. The directions are slightly different. The relative density is 2.3. Gypsum powder is one of the five major gel materials and plays an important role in the national economy. It is widely used in many applications such as construction, building materials, industrial molds and art models, chemical industry and agriculture, food processing and medical beauty. Important industrial raw materials.

Use of gypsum powder:

1. Building materials and buildings
 a: anhydrite cement and cementitious materials: an appropriate amount of an activator can be used to produce anhydrite cement or cementitious materials, suitable for reinforcement of soft soil foundation, wall painting, mechanical model, tunnel support and Production of fiber pressure plates, etc.
 b: used as a co-solvent and purifying agent in the glass production process.
 c: used as a filler in industrial production of plastics, rubber, paint, asphalt, linoleum, and the like.
 d: The main raw material of concrete expansion agent, anti-cracking agent and self-leveling mortar. 
 e: The pouring pile and the deep mixing pile are used as large expansion materials for increasing the frictional resistance. 
 f: used as a composite mineralizer in special cement production

2, chemical industry
 a: Produces sulfuric acid and produces light cement.
 b: Production of ammonium sulfate, with the production of light calcium carbonate.

3. Agriculture
 a: Improve the soil, adjust the pH, and apply to the improvement of soil such as saline-alkali land and red land.
 b: The edible fungus is used as a calcium and sulfur composite mineral fertilizer to adjust the pH of the medium.
 c: used as a composite mineral feed additive in poultry and livestock feed.

Gypsum powder production line equipment:

Processing gypsum powder can choose the mill equipment: YGM high pressure suspension roller Raymond mill: processing fineness between 15-425 mesh (fineness can be adjusted freely), HGM three-ring medium speed superfine mill: The processing fineness is between 325-3000 mesh (the fineness can be adjusted arbitrarily), and the fineness of the European version coarse powder grinding machine is less than 3mm.

HGM three-ring medium-speed superfine grinding mill is often used in gypsum powder production line, mainly because it includes crushing, hoisting machine, milling machine, conveying and dust removal.
The gypsum powder production line can not only process gypsum, but also ultra-fine powder processing of non-inflammable and explosive brittle materials with medium and low hardness and Mohs hardness ≤6, such as calcite, chalk, limestone, dolomite, carbon black, Kaolin, bentonite, talc, lapis lazuli, magnesite, illite, pyrophyllite, vermiculite, sepiolite, attapulgite, rectorite, diatomaceous earth, barite, gypsum, alum, graphite, fluorite More than 100 kinds of materials such as phosphate rock, potassium ore and pumice.
HGM three-ring superfine mill Gypsum production line

Working principle:

After the bulk material is crushed, it is sent to the storage bin by the hoist, and then the electromagnetic vibrating feeder is evenly sent into the main machine grinding chamber. The material entering the grinding chamber is scooped up by the blade and is rolled between the grinding roller and the ring. Pressing and crushing, the fan blows the wind into the grinding chamber, blows the powder into the analysis machine, sorts it, and does not reach the fineness of the grinding chamber. The qualified fine powder enters the finished cyclone collector with the airflow. After the fine powder is separated from the air, it is discharged from the discharge port, and the air is returned to the fan from the upper return air duct. The air path is circulated and flows under a negative pressure state.
In the grinding chamber of the ultra-grinding mill, due to the certain moisture content of the material to be ground, a certain amount of heat will be generated during the grinding to cause the water vapor to evaporate, and the flanges of the whole machine are not tightly sealed, so that the outside air is sucked in, so that the circulation The airflow increases, in order to ensure the normal operation of the mill under negative pressure, the increased airflow is discharged into the baghouse through the residual air pipe between the fan and the main engine, and is purified and discharged into the air.
 

Technical Parameters:

gypsum powder grinding mill parameters

Gypsum powder production line video: