Cement rotary kiln
1)The Introduction of cement rotary kiln
Cement rotary kiln belongs to building material equipment, which can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to different materials. Rotary kiln(cement kiln) is used for making of cement clinker and there are dry and wet methods to make lime.
2)Main characteristics of the cement rotary kiln
1. The cement rotary kiln applied to roast active lime and dolomite which are commonly used in steel factories and ferroalloy factories.
2. The metallurgy chemical rotary kiln is mainly used for magnetized roasting of lean iron ore and oxidizing roasting of chrome ore and nickele ore etc in steel plants. In refractory plants, this rotary kiln is mainly used for roasting clinker and aluminum hydroxide. When used in chemical industry, it is mainly used for roasting chrome ores and chrome powders and more.
3. The rotary kiln is primarily used for caining cement cliner, It can be divided into dry process rotary kilns and wet process rotary kilns.
4. These new technologies provide our rotary kiln with strong visual sense, convenient operation and reliable performance. They help stabilize thermal regulation and improve operation efficiency.
5. Comparing with other similar cement production equipment, the operation rate of our rotary kiln increased by 10%, production increased by 5%-10% and heat consumption decreased by 15%. In order to meet customers' requirements, we also provide impact crusher, cone crusher, magnetic separator, flotation machine, ball mill and more.
3) Process Flow of Active cement Production Line
1. Raw Material Conveying: The 20-40mm limestone on the stock ground is sent to storage silo by the B1000 belt conveyor with large inclination. In the storage silo, qualified limestone with granularity more than 10mm will be sent to the gravel silo, while limestone with particle size less than 10mm will be conveyed to the powder silo.
2. Limestone Calcining: The limestone calcining system is mainly made up of 10.5× 8.5m vertical preheater, 4.0× 60m rotary kiln and vertical coolder whose output is 600t/d and heat consumption of 5.75GJ/t. Limestone inside the preheater is heated by high-temperature gases from rotary kiln to 600-800° C, at which temperature limestone can be partly decomposed. Then the limestone will be sent by 12 hydraulic push rods to the kiln end, where it will undergo high-temperature calcination before sent to the vertical cooler. The processed limestone will be cooled down by cold air to 65° C. Air from the vertical cooler enters into the rotary kiln as the second air to take part in calcining process.
3. Finished Product Conveying: The final lime will be sent to the storage bin for final products by NE500 bucket elevator. After screening, qualified lime whose particle size is more than 5mm will be sent to storage for active lime, while powder lime whose size is less than 5mm will be sent to storage bin for powder.
4. Gas Treating: High-temperature gases from rotary kiln will do heat exchange with limestone inside the preheater, and after that, the temperature of these gases will reduce to lower 280° C. Then these gases will be cooled down by multi-tube cooler to 200° C lower. Finally, they enter into the bag filer before discharged into the atmosphere.
Description of Cement Rotary Kiln (cement rotary kiln Equipment)
Cement rotary kiln can be widely used in a wide range of industries, such as steel, alumina, magnesium, calcium carbide, papermaking field, etc. As an important auxiliary material, active lime can not only help to improve the quality and output of steel, but also reduce the consumption and costs as well as ensure stable operation of steel industry.
|
Specification(m) |
Kiln dimensions |
Output (t/h) |
Rotation speed(r/min) |
Motor power(kw) |
Weight(t) |
Diameter
(m) |
Length (m) |
Obliquity(%) |
|
φ1.4*33 |
1.4 |
22 |
3 |
0.9-1.3 |
0.39-3.96 |
18.5 |
47.5 |
|
φ1.6*36 |
1.6 |
36 |
4 |
1.2-1.9 |
0.26-2.36 |
22 |
52 |
|
φ1.8*45 |
1.8 |
45 |
4 |
1.9-2.4 |
0.16-1.62 |
3 |
78.2 |
|
φ1.9*39 |
1.9 |
39 |
4 |
1.65-3 |
0.29-2.93 |
30 |
77.59 |
|
φ2.0*40 |
2 |
40 |
3 |
2.5-4 |
0.23-2.26 |
37 |
119.1 |
|
φ2.2*45 |
2.2 |
45 |
3.5 |
3.4-5.4 |
0.21-2.44 |
45 |
128.3 |
|
φ2.5*40 |
2.5 |
40 |
3.5 |
9.0-10.5 |
0.442.44 |
55 |
149.61 |
|
φ2.5*50 |
2.5 |
50 |
3 |
6.25-7.4 |
0.62-1.86 |
55 |
187.37 |
|
φ2.5*54 |
2.5 |
54 |
3.5 |
6.9-8.5 |
0.48-1.45 |
55 |
196.29 |
|
φ2.7*42 |
2.7 |
42 |
3.5 |
10.0-11.0 |
0.10-1.52 |
55 |
198.5 |
Henan Ruiguang Mechanical Science & Technology Co., Ltd. is a professional manufacturer engaged in the research and development, production, sale and service of machinery. We are located in zhengzhou City, Henan Province and have convenient transportation access.
Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In recent years, our company has introduced a series of advanced equipment.
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