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Gypsum powder production line :

1.Continuous production

2. Drying and calcining in one step

Gypsum powder production line

1. Brief description to the process of gypsum drying and calcining

Four process step are finished into scattered form

1.Breaking material into scattered form

2.Drying

3.Particle classification

4.Calcining

First surface dehydrating and dehydrating partial crystal water to make semi-dehydrated gypsum, the equipment makes the two processes drying and calcining into one step. So that high quality semi-hydrated gypsum is obtained and the investment is reduced.

After drying,the powder of 2-water calcium sulphate is caught by the catcher then goes into the SD calciner. The powders are flowing, revolving and mixing with high temperature air. Mass and thermal are transferring. During seconds of calcining semi-dehydrated gypsum βCaSO4 1/2 H2O forms. After the separation between the gas and solid, the powders of the gypsum being wind cooling and averaging transfers to the store bunker in the end.

The products reaches the national standards of building gypsum. It can be used in boards and bricks making and as cement additives.

2. Process characteristic of drying and calcining

1. Continuous production, big capacity, low energy consumption short calcining time, working

smoothly, and auto-operation available

2. Drying and calcining synchronizing, stabilization of products quality

3. Fully use of energy,negative pressure operation , high tightness,no dust leaking and no

Pollution

4. Equality heating of the materials, having bigger surface area of heating, and higher recovery

3. Production line of crude gypsum

The basis of gypsum ore is two-water calcium sulphate(CaSO4 1/2 H2O). Getting high quality gypsum powder of (βCaSO4 1/2 H2O) has fore processes of breaking, fine grinding, calcining and averaging.

Characteristic:

Transfering thermal flowed and revolved, equality heating of the materials, continuous production and 10 seconds calcining.