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Energy-saving rotary kiln

Capacity: 100-10000t/d

Applications: Chemical, cement, building materials, metallurgy, environmental protection and other fields.

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As we all know, rotary kiln is special devide for minerals calcination, it is widely used in the chemical, cement, building materials, metallurgy, environmental protection and other fields. Adaptable materials include cement clinker, chrome ore, laterite nickel ore, zinc oxide, cement clinker, sludge, ceramic sand and other hundreds of kinds.

Energy-saving rotary kiln is mainly composed of kiln shell, kiln lining, kiln tyre, heat exchange device, rolling ring, supporting device, transmission device, kiln head cover, burner, kiln tail cover, feeding equipment and other parts.

technical features of energy-saving rotary kiln

Energy-saving rotary kiln is developed with advanced technology. Our engineering team design rotary kilns for increasing efficiency and lowering production costs. There are five main technical features as follows:

Vertical preheater at kiln end

A vertical preheater is installed at the kiln end, so that the residual heat of flue gas at the kiln end of the rotary kiln with a temperature of about 900 ℃ is directly transferred to the materials, the temperature is reduced to about 200 ℃, and then enters the dust collector through the air outlet pipe, effectively recovering the residual heat;

Reduce length-diameter ratio

The length-diameter ratio of the rotary kiln is reduced to 14:15. The shortening of the length not only reduces the heat lost from the surface of the rotary kiln to the surrounding area, but also reduces the floor area of the rotary kiln. At the same time, the transmission power of the rotary kiln body is also reduced.

Vertical cooler instead of single cooler

The cooling device at kiln outlet uses a vertical cooler instead of the original single-barrel cooler to avoid the loss of sensible heat of the material. The hot material falling from the kiln head at about 1000 ℃ is cooled by the heat exchange with the blown secondary air, and the temperature is reduced to about 80 ℃, which is output through the vibration feeder. After the heat returns to the kiln, it becomes combustion supporting hot air. The waste heat is recycled again.

Integrated design of cooler and kiln head cover

The cooler and kiln head cover adopt integrated design, which ensures the sealing and avoids the random discharge of hot gas and dust.

High level of automation

The whole production line of the rotary kiln has a high degree of automation. The production operation of feeding, calcining and finished product transportation, equipment operation monitoring, regulation and alarm in the process are all controlled by the PLC control system in the centralized control room.

energy-saving rotary kiln

why choose AGICO CEMENT?

AGICO CEMENT is specialized in rotary kiln design, manufacture, and spare parts supply, we have strong technical support and professional manufacturing machinery to provide customized rotary kilns. Our rotary kiln has wide applications including cement, mineral, metallurgy, chemicals, and other industries. We promise a one-stop service and high quality, welcome to ask, and a FREE online factory tour!

advanced technique

EPC project

200+ successful cases

strong capacity

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More energy-saving

The coal consumption of the equipment is low, the heat supply is more sufficient, and the hot air can be recycled at the same time. The energy-saving effect is particularly significant, and the fuel cost saved each year is at least 70000-90000 yuan;

Higher Efficiency

The design of the calcination cylinder is more reasonable, the contact surface between the hot air and the material is larger, and the internal problems are easy to control, ensuring that the calcination efficiency is increased by more than 40%;

More convenient

The automation system design ensures more convenient equipment operation, saves labor costs, time costs, etc., and greatly improves the safety of equipment;

Lower cost

The equipment is solid and reliable in quality, small in size, small in floor area, saving 40000 yuan in infrastructure investment, and reducing 20000 to 50000 yuan in annual maintenance and repair costs;

More environmentally friendly

The tail gas and waste residue discharged from the calcination process is treated scientifically to avoid pollution to the environment and atmosphere and reach a higher environmental protection standard.

Energy-saving rotary kiln cases
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Specifications of energy-saving rotary kiln

Size
(m)
Capacity
(t/d)
main motormain gearboxWeight
(t)
Note
ModelPower (kw)ModelSpeed ratio
φ18×26 72 AG2-72-4 30 AG750-1-Ⅰ 48.57 66 
φ1.9/1.6×39 72 AG2-72-4 30 AG750-1-Ⅰ 48.57 66 
φ1.9×36 84 AG315-4A 37 AG110-5-Ⅲ 78.19 85.9 
φ2.2×45 98.4 AG82-6 55 AG125 93.93 104 
φ2.5×40 160 AGZ2–92 40 AG125-2-Ⅰ 134.9 143 
φ2.5×45 170 AG82-4 45 AG125-4-Ⅰ 69.71 148 
φ2.5×50 180 AG3-72-4 30 AG145-9-Ⅴ 122.8 173 
φ2.5×60 168 AG355-4B 75 AG165-7-Ⅱ 99.96 222 Bauxite calcining kiln 
φ3×48 360-480 AG355-4B 75 AG145-7-Ⅱ 100.4 170.6 
φ3.1/2.5×78 216-240 AG4—225-31 75 AG165-2-Ⅱ 57.17 268 
φ3×48 700 AG4-280-21B 110 AG56-28-Ⅱ 28 244 precalcining technology
φ3×100.94 450 AG4-280-21B 90 AG995-90-Ⅵ-L 90 526 planetary cooler 
φ3.2×50 1000 AG4-280-21B 160 AG56-28-Ⅱ 28 252.4 precalcining technology 
φ3.2×52 600 AG4-280-21B 125 AG1110-71BL 71.54 275 preheater kiln 
φ3.3×52 1000 AG4-280-11B 125 AG995-40-Ⅵ-BR 40 283 precalcining technology 
φ3.5×52.5 1400 AG2-112 180 AG177 79.22 360 precalcining technology 
φ3.5×54 1500 AG4-3156-092 220 AG500-40-Ⅴ 40 368 precalcining technology 
φ3.6×70 490 AG4-280-11B 125 AG177-5-Ⅱ 79.2 419 waste heat generating kiln 
φ3.95×56 2000 AG-280-32BTH 250 AG560-40-Ⅰ 40 417 precalcining technology 
Φ4×28 90 AG4-280-21B 160 AG500-71-Ⅳ 71 300 
φ4x60m 2500 AG4-355-09Z 315 AG630-35.5-Ⅰ 34.6 523 precalcining technology 
φ4.2x60m 2800 AG4-355-12 420 AG710-35.5-Ⅰ 35.5 — precalcining technology 
φ4.3x60m 3000 AG4-355-12 375 AG710-40 40 553 precalcining technology 
φ4.8x75m 5000 AG4-400-92 630 AG710-40 42 841 precalcining technology 
Note: The table parameters are only for selection reference
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