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Energy-saving rotary kiln
Applications: Chemical, cement, building materials, metallurgy, environmental protection and other fields.
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.
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!
200+ successful cases
Advantages of energy-saving rotary kiln
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;
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%;
The automation system design ensures more convenient equipment operation, saves labor costs, time costs, etc., and greatly improves the safety of equipment;
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
Specifications of energy-saving rotary kiln
|main motor||main gearbox||Weight |
|Model||Power (kw)||Model||Speed ratio|
|φ2.5×60||168||AG355-4B||75||AG165-7-Ⅱ||99.96||222||Bauxite calcining kiln|
|φ3.6×70||490||AG4-280-11B||125||AG177-5-Ⅱ||79.2||419||waste heat generating kiln|
|Note: The table parameters are only for selection reference|