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Gypsum Processing Plant

In gypsum processing plant, crushing, grinding gypsum into powder is the important step, in this gypsum mining procedure, the machinery we common use is crushing quipment, hoist, electromagnetic feeder, grinding machine, fluidized bed furnace( gypsum calcining equipment ), bunker, belt conveyor and dust collector.

Gypsum Mining

Gypsum is typically mined in an open pit quarry. The process used to mine gypsum is very similar to that used in many other rock quarries. First the exposed gypsum is fractured by drilling and blasting. The fractured gypsum is then loaded onto trucks and transported to a processing plant. At the processing plant, the large gypsum ore is reduced in size by passing it through a large crusher. Crushing the ore generates a mixture of smaller rocks that can be cleaned and sorted by size. Sorting is accomplished by passing the gypsum through a series of vibrating screens. Sorted rock is then loaded for distribution to be further processed like for gypsum powder grinding by the end user.

Gypsum processing contains gypsum crushing plant and gypsum grinding plant.

There are five basic stages in gypsum processing:

1) Excavation from gypsum deposits;

2) Crushing the gypsum rock;

3) Screening with a multi deckvibrating screen will remove large grains which have not been crushed properly and which may contain impurities;

4) Grinding the sorted gypsum rock, gypsum sand;

5) Burning may be done in a number of ways involving a range of technology levels and costs. After burning, the gypsum would still need to be crushed, screened and, possibly, ground down further in a mill.

The Gypsum Powder Production Line

The gypsum powder production line includes four process flow: crushing, grinding, calcine, storing and feeding.

By using loader to feed the gypsum rock to the raw material storage bin. And then it will be transferred to the crusher to be crushed. Gypsum rocks is crushed into particles less than 30 mm by gypsum crusher, Then gypsum particles is feeded into raymond mill for grinding into partical size by electromagnetic feeder. The gypsum powder that meet the requirement of size is transported into fluidized bed furnace for burning. When heating and calcining the dehydrate gypsum and chemical gypsum (ardealite, desulphurization plaster, fluorgypsum), the dehydrate gypsum was decomposed, we get the semi-hydrated gypsum, i. E., plaster of Paris.

Dry process flow: plaster stone go through primary crushing process using jaw crusher, the size is less than 8 cm, the go through secondary crushing process, in this process, cone crusher is used as fine crusher, then the sie is less than 2 cm. After calcination, the calcined gypsum is grinded into the powder with 200-325 mesh by gypsum mill.

MEG machinery is a high technology, engineering group. We are specializing in the research, development, and production of industrial grinding mill equipment and pertinent devices. Our products have been sold to 56 countries and areas of Southeast Asia, East Europe, South America, the Middle East and Africa etc, and more foreign markets will be promoted in future.