The rotary kiln, also known as the rotary calcining kiln (rotary kiln), belongs to the category of building materials equipment. Rotary kilns can be divided into cement rotary kilns, metallurgical chemical kilns and lime rotary kilns according to different materials processed.
The purpose of the rotary kiln (active cement rotary kiln) is: mainly used for calcining cement clinker. It is divided into two categories: dry production cement kiln and wet production cement kiln. The metallurgical chemical kiln is mainly used in the metallurgical industry for the magnetization roasting of lean iron ore in steel plants; the oxidation roasting of chromium and nickel iron ore;
The roasting of high-alumina vanadium ore in refractory material plants and the roasting of clinker and hydroxide in aluminum plants. Aluminum; chemical plants roast chromium ore and chromium ore powder and other minerals; lime rotary kiln (i.e. active lime kiln) is used to roast activated lime and light-burned dolomite used in steel plants and ferroalloy plants.
The main structural components of the rotary kiln (active cement rotary kiln): burner, kiln head cover, cylinder, kiln lining, heat exchanger, rolling ring, kiln tail cover, feeding device, supporting device, With gear wheel support device and transmission device.
Introduction to the working principle of the rotary kiln (active cement rotary kiln): The rotary kiln is a rotary cylinder type of equipment. The cylinder is lined with refractory bricks and a heat exchange device, and rotates at a low speed. The material and hot flue gas generally exchange heat in counter-current fashion, and the material is added from the high end of the kiln (also called the cold end or the kiln tail end). Since the cylinder is installed at an angle, the material in the kiln moves axially while tumbling in the circumferential direction during rotation. The burner injects fuel at the low end (also known as the hot end or kiln head end), and the flue gas is discharged from the high end. The materials are heated during the movement
and undergo physical and chemical changes to become qualified products and are discharged from the low end.
Performance characteristics of Nanyang rotary kiln: The rotary kiln produced by our factory has a solid structure, stable operation, and high quality of the products coming out of the kiln; in addition, in addition to the main drive, the transmission system is also equipped with a power interruption function in the main power supply. It is an auxiliary transmission device that can still rotate the kiln body and prevent the kiln body from bending and deforming; the kiln head and kiln tail sealing devices adopt advanced technology to ensure the reliability of the seal and can also provide users with advanced and efficient vertical cylinder preheating. heater, five-stage cyclone preheater.
Main technical parameters of Nanyang rotary kiln
Specifications (m)
Rotational speed r/min
Slope %
< p>Output t/hPower kw
Block wheel form
Support quantity
Weight t
Φ1.4×33
0.39-3.96
3
0.9-1.3
15
Mechanical< /p>
3
47
Φ1.6×36
0.26-2.63
4
< p>1.2-1.930
3
53
Φ1.8×32
0.16- 1.62
4
1.9-2.4
30
3
78
Φ1.8×45
0.21-2.11
4
2.8-3.4
30
3< /p>
80
Φ2.0×45
0.32-2.32
3.5
3.0-4.2
30
3
100
Φ2.2×50
0.98-2.93
3.5
3.5-4.8
30
3
130.8
Φ2.5×40
0.44-2.44
3.5
6.0-7.2
55
3
151< /p>
Φ2.5×50
0.48-1.44
3.5
7-8(9-11)
55
3
167.5
Φ2.5×54
0.48-1.44
3.5
8.0-8.6(10-12)
55
3
172.5
Φ2.8×44< /p>
0.8-2.39
3.5
11-12.5(20-22)
55
3
198.5
Φ3.0×48
0.5-1.35
3.5
21-25(35-42 )
55
3
237
Φ3.2×50
0.48-2.44
3.5
25-35(45-50)
55
3
278
Φ3.5×70
0.5-1.54
3.5
35-45(55-70)
125
3
411
Φ4.8×74
0.35-4
4
85-95(100-120)
630
3
841
The main structure of the rotary kiln body is: kiln shell , tire rings, thrust rollers,
Note: The output in brackets is the output after decomposition outside the kiln. The above parameters are for reference only. Nanyang Machinery reserves the right to change product design