Brief Introduction of Rotary kiln
A Rotary kiln is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process. Materials produced using rotary kilns include:
Cement
Lime
Refractories
Metakaolin
Titanium dioxide
Alumina
Vermiculite
Iron ore pellets
They are also used for roasting a wide variety of sulfide ores prior to metal extraction.
The rotary kiln produced by Xinhai Machinery has strong structure, stable operation, high-quality products from the kiln and so on advantages, we can also offer advanced efficient shaft pre-heater, five grade cyclone preheater.
Working Principle of Rotary Kiln
The kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner-pipe (or "firing pipe") which acts like a large bunsen burner. The fuel for this may be gas, oil or pulverized coal.
Construction of Rotary Kiln
The basic components of a rotary kiln are the shell, the refractory lining, support tyres and rollers, drive gear and internal heat exchangers.
A Rotary kiln is a pyroprocessing device used to raise materials to a high temperature (calcination) in a continuous process. Materials produced using rotary kilns include:
Cement
Lime
Refractories
Metakaolin
Titanium dioxide
Alumina
Vermiculite
Iron ore pellets
They are also used for roasting a wide variety of sulfide ores prior to metal extraction.
The rotary kiln produced by Xinhai Machinery has strong structure, stable operation, high-quality products from the kiln and so on advantages, we can also offer advanced efficient shaft pre-heater, five grade cyclone preheater.
Working Principle of Rotary Kiln
The kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly about its axis. The material to be processed is fed into the upper end of the cylinder. As the kiln rotates, material gradually moves down towards the lower end, and may undergo a certain amount of stirring and mixing. Hot gases pass along the kiln, sometimes in the same direction as the process material (co-current), but usually in the opposite direction (counter-current). The hot gases may be generated in an external furnace, or may be generated by a flame inside the kiln. Such a flame is projected from a burner-pipe (or "firing pipe") which acts like a large bunsen burner. The fuel for this may be gas, oil or pulverized coal.
Construction of Rotary Kiln
The basic components of a rotary kiln are the shell, the refractory lining, support tyres and rollers, drive gear and internal heat exchangers.
Parameter
|
model
|
Revolotion speed(r/min)
|
Slope(%)
|
Max-input gas
|
Power (kw)
|
Capacity (t/h)
|
Height(t)
|
|
φ1.5×15
|
3
|
3-5
|
700
|
15-18.5
|
3.0-20
|
25.6
|
|
φ1.5×12
|
2.8-4
|
3-5
|
700
|
15-17
|
2.7-17
|
22.3
|
|
φ1.5×10
|
2.8-4
|
3-5
|
700
|
13-15
|
2.7-17
|
17.9
|
|
φ1.2×12
|
3-4
|
3-5
|
700
|
11-13
|
2.7-15
|
13.1
|
|
φ1.0×10
|
3.8-5
|
3-5
|
700
|
5.5-7.5
|
2.2-10
|
7.5
|
|
φ0.8×10
|
3.8-5
|
3-5
|
700
|
4-6
|
1.8-10
|
3.8
|
|
φ0.6×10
|
3.8-5
|
3-5
|
700
|
4-6
|
1.5-9
|
3.2
|
|
φ1.8×14
|
2-4
|
3-5
|
700
|
18.5
|
3-12
|
29
|
|
φ2.2×12
|
2-4
|
3-5
|
700
|
30
|
8-20
|
53
|
|
φ2.2×12
|
2-4
|
3-5
|
700
|
22
|
5-16
|
53
|
|
φ2.2×18
|
2-4
|
3-5
|
700
|
30
|
8-20
|
53
|