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Rotary Kiln


As a large industrial machinery manufacturers in China. We are focus on mining machinery, complete sets of processing equipment, building materials equipment of rotary kiln.


Rotary kiln is the main equipment for calcining cement clinker and it can be used widely for cement industry, metallurgy industry, chemical industry, etc. Which belongs to building material equipment, which can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to different materials.

 rotary kiln

rotary kiln

rotary kiln


Structure of rotary kiln

The rotary kiln is composed of the shell, the supporting device, the supporting device with thrust roller, the driving device, the movable kiln head, the sealing device at kiln tail, the combustion device, etc. It has the simple structure and reliable operation, at the same the production process of the rotary kiln can be controlled easily.

Features of rotary kiln

1. Through technological innovation, our rotary kiln is designed with international leading wheel catch device, high precision plunger metering pump, high accuracy speed control valve and contact graphite block sealing device, etc.

2. In order to improve machinery automation, an industrial computer is used for showing the calcining condition, and a fluorescent screen is adopted for showing the simulated process flows. An infrared scanner is utilized for transmitting the calcining condition to the computer.

3.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.

4. 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%.

Working principle of the rotary kiln

Through the technical renovations, the rotary kiln calcining system equipment made has adopted the advanced hydraulic thrust roller device, the high measuring precession plunger pump, the variable speed adjusted valve, the contact graphite block sealing device and the other national advanced technologies. In order to raise up automation degree, the industrial TV has been used at the kiln head for monitoring of kiln, the simulation phosphor screen has been used for display of process flow; the infrared scanning system has been adopted for calcining zone to directly reflect the burning conditions on the computer. With the use of these new of these new technologies, it is direct in vision, convenient in operation and reliable in use. Therefore, the thermal condition can be stabilized and the running rate of equipment can be raised. Compared to same sized equipment, its running rate has been raised 10% up, production has been increased 5-10% and heat consumption has been reduced 15% down.

Different types

Cement kiln is used for making of cement clinker and there are dry and wet methods to make cement. Metallurgy chemical kiln is used for magnetic roasting of iron ore and oxidizing roasting of chrome and nickel in the steel factory, baking high-alumina mine in the refractory material factory; baking chamotte and alumina in the aluminum factory and baking chrome ore and chrome powder in the chemical plant.

rotary kiln
rotary kiln

Lime kiln is used for baking active lime and dolomite in the steel factory and ferroalloy factory.

Specifications of rotary kiln

Kiln dimensions Output(t/h) Rotation speed (r/min) Motor power(kw) Weight(t) Note

ø1.4*33 1.4 33 3 0.9-1.3 0.39-3.96 18.5 47.5 ----
ø1.6*36 1.6 36 4 1.2-1.9 0.26-2.63 22 52 ----
ø1.8*45 1.8 45 4 1.9-2.4 0.16-1.62 30 78.2 ----
ø1.9*39 1.9 39 4 1.65-3 0.29-2.93 30 77.59 ----
ø2.0*40 2 40 3 2.5-4 0.23-2.26 37 119.1 ----
ø2.2*45 2.2 45 3.5 3.4-5.4 0.21-2.44 45 128.3 ----
ø2.4*40 2.4 40 3.5 6.2-6.8 0.39-2.44 55 136.5 ----
ø2.5*40 2.5 40 3.5 9.0-10.5 0.44-2.44 55 149.61 ----
ø2.5*50 2.5 50 3 6.25-7.4 0.62-1.86 55 187.37 ----
ø2.5*54 2.5 54 3.5 6.9-8.5 0.48-1.45 55 196.29 ----
ø2.7*42 2.7 42 3.5 10.0-11.0 0.10-1.52 55 198.5 ----
ø2.8*44 2.8 44 3.5 12.5-13.5 0.437-2.18 55 201.58 Suspension preheating kiln
ø3.0*45 3 45 3.5 12.8-14.5 0.5-2.47 75 210.94 ----
ø3.0*48 3 48 3.5 25.6-29.3 0.6-3.48 100 237 Outside disassemble kiln
ø3.0*60 3 60 3.5 12.3-14.1 0.3-2 100 310 ----
ø3.2*50 3.2 50 4 40.5-42 0.6-3 125 278 Outside disassemble kiln
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