Gypsum Rotary Kiln

Description

Gypsum rotary kiln is mainly compose of driving device, supporting roller, catching roller, cylinder, kiln inlet, kiln outlet and sealing device.

Process flow

During the working process of the gypsum rotary kiln, the raw material is fed into the kiln from the feeding pipe on the upper part of the kiln tail. Due to the inclination and slow rotation of the kiln, raw material will roll along the circumferential direction and rotate along the kiln shell. According to the composite movement moving from high temperature to low end in the axial direction, the raw material passes through the process of decomposition and firing in the kiln, and the material is discharged from the bottom end of the kiln shell after calcined. The fuel is burned in the hot blast furnace, and the generated heat is introduced into the rotary kiln through the induced draft fan at the end of the kiln to heat the material to calcine the raw material. The waste gas formed during the exchange with the material is discharged from the flue gas port at the end of the kiln, after being purified by cyclone dust collector and bag dust collector, it will be discharged into the atmosphere from the chimney.

Advantages

1. Direct continuous calcination method

2. Low exhaust gas temperature, improve thermal efficiency

3. The particle size of raw materials is classified as 0 to 30 mm, so there is no special requirement for pre-crushing

4. No pre-drying requirement

5. The calcined material has been reduced in size, so the energy required for grinding is small

6. Automatic control of rotary kiln

7. Simple design with proven and reliable components

8. No refractory bricks in the rotating part