FGD Gypsum Making Machine

Description

The desulfurized gypsum equipment has adopted advanced technology in the whole system. Two-step calcining technology is adopted in FGD gypsum making machine. The first step is pre-drying, and the second step is calcining in the furnace.
Detailed description is as follows: Raw material is loaded from the raw material area to the feeding hopper, and after being weighed, it is sent to the Powder Transferring Oil Tube Dryer, in which the free water is removed. After pre-dried, it is lifted to the furnace to be calcined. After being calcined, it is sent to the silo.

Features of the FGD Gypsum Making Machine

1. Both the preheating system and the calcining system use the same energy source: hot air furnace. This makes the production line more energy-saving and less investment cost.
2. The pin mill or ball mill is arranged after calcining. It modifies the FGD gypsum, and makes the gypsum powder production line have stable performance.
3. Horizontal dust collecting system improves the filtering result.
4. Hot air is recycled. More energy is saved and the production cost is lower.
5. DCS control system is adopted in the production line. It supplies more automatic control level, much stable running performance, and more reliable quality.

Standard Final product from FGD Gypsum Making Machine

1. Quality: meet the national stander of GB9776-88
2. Finess: ≥80 meshes
3. Anti-bending strength(related to raw material): ≥1.8Mpa
anti-pressure strength: ≥3.0Mpa
4. main content(adjustable):
CaSO4.1/2 H2O: ≥80％
CaSO4·2H2O: ﹤5％
Solvable CaSO4: ﹤5％
5. Preliminary consilidation duration: 3 to 8min (adjustable)
Final consilidation duration: 6 to 15 min (adjustable)
6. Standard thickness: 50 to 72％(adjustable)

Typical Process of Desulfurized Gypsum Equipment