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AGICO Cement International Engineering Co., Ltd. is a leading company in China's building materials machinery industry. Founded in 1997, the company is based in a 66,000-square-meter industrial park, with 30,000 square meters of modern workshop space. It has a registered capital of 81.34 million yuan and employs 230 staff, including 42 experienced technical professionals with mid to senior-level qualifications.

Cement Factory Kiln
A rotary kiln for cement clinker production, selected to suit the factory's process arrangement, daily output and mechanical installation requirements.
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Insert Rotary Kiln
AGICO Insert Rotary Kiln: separate preheating and firing sections for pelletized LECA, with adjustable section speeds and coordinated feeding, cooling, and dust collection.
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Tilting Rotary Furnace
The tilting rotary furnace is a key technology for aluminum recycling. It efficiently melts dross, chips, and UBCs with low energy consumption, high productivity, and reduced salt addition.
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0.5mm Tolerance Cement Rotary Kiln
AGICO specializes in the manufacturing and research and development of ultra-high precision cement rotary kilns with a tolerance of 0.5mm. Through cutting-edge technology and intelligent control, we help our customers achieve outstanding
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Rotary Drum Kiln
Our rotary drum kiln is an industrial equipment specially designed for continuous processing of materials at high temperatures. It has strong working capacity and excellent economic benefits, and is widely used in industries such as
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Plug in Type Rotary Kiln
The plug in rotary kiln adopts a modular design and is specifically designed to optimize the existing factory space. It can significantly reduce investment and operating costs and is an efficient and energy-saving calcination solution.
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Burner Pipe Rotary Kilns
Our burner pipe rotary kiln is made of high-temperature resistant alloy steel, with superior quality, high efficiency and high output. It is widely used in the fields of cement, metallurgy, chemical engineering and building materials
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Energy Saving Rotary Kiln
AGICO Company's energy-saving rotary kiln adopts advanced refractory materials and optimized calcination technology, making it more cost-effective in use. The cylinder is made of high-quality special titanium alloy steel, which is more
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Clinker Kiln
Clinker kilns play a significant role in the cement production process. They mainly sinter raw materials such as limestone and clay into cement clinker at high temperatures and are widely used in the cement industry, chemical industry,
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Cement Plant Kiln
Cement plant kilns are crucial high-temperature calcination machinery used in the manufacturing of cement. As a seasoned provider of cement equipment, we offer cement plant kilns that can be customized to satisfy various client
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Wet Process Cement Kiln
The wet process cement kiln is a type of equipment used in the production of cement, where raw materials are mixed with water to form a slurry before being fed into the kiln for heating. It has the characteristics of flexibility,
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Industrial Continuous Kiln
Our Industrial Continuous Kiln is a high-efficiency furnace used for uninterrupted production processes. It operates non-stop, ensuring consistent temperature control and high output. Commonly used in industries like cement, ceramics, and
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Why choose us

Our Certificate
The company has passed ISO, CE, picture: ISO1, ISO2, AAA, ce, CQC, PT quality management system certification and has independent import and export rights.

Production Market
Our products are sold across 27 provinces in China and exported to countries such as Brazil, Angola, Vietnam, and Mongolia, thanks to our independent import and export rights.

Quality Assurance
In terms of quality assurance, the company strictly follows the standards and norms of the industry quality system. Adopt industry-leading testing equipment to ensure product quality and good reputation.

Service Advantages
We provide market analysis, demand assessment, equipment selection guidance, and project design to ensure the equipment meets your specific needs.including installation guidance, maintenance, spare parts supply, training, and troubleshooting services to ensure long-term operational success.

Rotary Calcination Furnace

A rotary calciner, also known as a rotary kiln, is a high-temperature processing machine designed to alter the state or composition of materials through thermal treatment. It operates by tumbling materials in a rotating drum, which is heated either directly or indirectly to achieve the desired temperature and chemical reactions. They are capable of reaching temperatures up to 2273 K and are engineered to ensure uniform temperature distribution and precise control over reaction conditions. Their versatility makes them essential for processes like removing moisture, volatile constituents, or oxidizing substances, as well as producing materials like TiO2 pigment and activated carbon.

Model	Φ120×2770	Φ300×5800	Φ390×7935
Max. temp. (℃)	900	900	900
Working temp. (℃)	850	850	850
Power (KW)	20	70	96
Rotating speed (RPM)	0.5-8	0.5-8	0.5-8
Tilt of body	3-5º	3-5º	3-5º
Temp. zones	2	3	4,5
Control precision (℃)	±3	±3	±3
Capacity (T/24H)	0.25	1.5	4.5
NH3 absorber	——	Φ1000×1500	——
Weight (Ton)	~ 3	~ 6	~ 9
Length×Width×High (M)	33×7×15	71×16×24	92×18×23

Features of Rotary Calcination Furnace

01/

Flexible heat source options, including electric, gas, or oil, ensure adaptability. The kiln's compact design and excellent sealing capabilities minimize material and heat loss

02/

Automatic temperature control with segmented settings and over-temperature alarms keeps the process stable. The internal wall's temperature distribution is uniform, with control precision within ±5°C, ensuring consistent results

03/

High heat transfer efficiency and superior insulation prevent excessive heat loss, keeping the kiln's surface temperature below 50°C

04/

Burners offer over 99% thermal efficiency, with single-pass heat efficiency exceeding 41%. The burner flame is powerful, whether columnar or flat, and ensures robust performance

05/

Emission control is a priority, with NOx concentration in exhaust gases kept below 100 mg/Nm³, ensuring compliance with environmental standards

06/

Calcining temperature is adjustable by controlling the kiln's speed and angle, with precise operations possible across a range from 350°C to 1050°C

Advantages of Rotary Calcination Furnace

Energy saving and environmental protection:Compared with traditional gas or oil heating methods, electrically heated rotary kilns consume less energy and do not produce waste gas or waste water during the sintering process, greatly reducing the impact on the environment.

Precise temperature control: It can ensure the stable and uniform quality of sintered products and improve the overall quality of the product.

Wide applicability: It is suitable for the sintering treatment of non-metallic ores, non-ferrous metal mines, ceramics and other materials, so it is widely used in many industries such as metallurgy, chemical industry, environmental protection, and building materials.

Long service life and low maintenance costs: Due to precise temperature control, there is less equipment damage caused by temperature fluctuations, thus extending the service life of the kiln tubes. At the same time, the maintenance of electric heating elements is relatively simple, reducing later maintenance costs.

Type of Rotary Calcination Furnace

Muffle Furnaces

Muffle furnaces are designed with a separate chamber (the muffle) that isolates the material being processed from the combustion gases. This ensures that the material is heated indirectly, maintaining a clean and controlled environment.

Reverberatory Furnaces

Reverberatory furnaces feature a large, open chamber where heat is reflected (reverberated) from the roof and walls onto the material. The material is heated directly by the flames and indirectly by the reflected heat.

Shaft Furnaces or Kilns

Shaft furnaces or kilns are vertical structures where material is fed from the top and moves downward through a heated zone. The heat is typically generated by burning fuel at the base, and the material is calcined as it descends.

Applications of Rotary Calcination Furnace

01.

Cement and Steel Industries

Used for calcining limestone, producing clinker, and reducing iron ore.

02.

Chemical Processing

Oxidation of ilmenite, calcination of petroleum coke, and production of TiO2 pigment.

03.

Waste Management

Incineration of waste materials, desorption of soil contaminants, and recycling of waste lime.

04.

Material Production

Activation of catalysts, production of activated carbon, and processing of ceramics and plastics.

Rotary Calcination Furnace Workflow

Material feeding

The raw material is introduced into the calciner via a feed chute. The rotary calciner design ensures smooth material flow, reducing the risk of clumping or uneven heating.

Rotary motion

The cylindrical body of the calciner rotates at a controlled speed. This movement ensures that materials are continuously tumbled and exposed to heat evenly. It also prevents agglomeration, critical for achieving uniform results.

Heating system

Rotary calciners are equipped with either direct or indirect heating systems.

☆Direct Heating: Hot gases come into direct contact with materials.

☆Indirect Heating: Heat is transferred through the furnace walls, isolating materials from direct heat source (electrically heated rotary calciner) or combustion gas ( gas fired rotary calciner) .

Both systems are tailored by leading industrial furnace providers to meet specific requirements. Indirect heating system can be electrically heated or gas fired ,with electrically heated giving better control on the heating .Direct heating rotary calciners are predominantly gas fired.

Thermal zone control

Modern rotary calciners feature multiple thermal zones. Each zone operates at a different temperature, facilitating precise material transformation.This is possible with electrical heating.

Discharge and coolng

Once the material undergoes the required heat treatment, it exits through a discharge outlet. Cooling mechanisms are often integrated to ensure material stability and quality.

Rotary calcining furnace process

Calcination

Thermal decomposition of materials like limestone (to produce lime) or gypsum (to produce plaster).

Oxidation and Reduction

High-temperature reactions to alter the chemical state of materials, such as converting magnetic iron oxide to iron.

Volatilization

Separating volatile metals like zinc, lead, and copper from ores or waste materials.

Sintering

Heating materials like dolomite or magnesite to form a solid mass without melting.

Structure and components of rotary calciner

Rotary Drum
The rotary drum is constructed from 310S heat-resistant steel, capable of withstanding temperatures up to 1500°C and resistant to corrosion from common acids, bases, and salts. Inside the drum, lifter plates are installed to ensure that the materials are evenly heated as they tumble during rotation. Materials are fed into the drum at the front end and move towards the rear as the drum rotates, undergoing preheating, calcination, and finally discharge.

Transmission and Support Mechanism
The drum is supported by front and rear support rollers and features a drive gear ring mounted on its outer wall. It is driven by a variable frequency motor, a reducer, and a pinion gear. The rotational speed of the rotary drum can be adjusted between 1 and 5 RPM. The transmission mechanism and the heating furnace body are all mounted on an integrated base for stability and ease of installation.

Feeding Mechanism
The feeding mechanism comprises a feed hopper, a feeder, and a feeding platform. The feed hopper and feeder are made of 304 stainless steel. The feeding speed is controlled by a variable frequency motor to ensure precise and adjustable material input.

Feeding and Discharging End Hoods
The end hoods are constructed from 304 stainless steel and feature clean-out ports at the bottom for the periodic removal of accumulated material. The flexible and elastic sealing method between the hoods and the drum minimizes dust leakage and maintains a clean operating environment.

Heating Furnace
The heating furnace is situated in the middle part of the drum, heating the outer wall of the drum externally. The heating elements are positioned beneath the drum, ensuring uniform heating of the materials as the drum rotates. These elements are high-temperature alloy rod-type elements, made from 0Cr27Al7Mo2, which are easy to replace and highly durable. The elements are installed at the furnace base, supported by high-alumina ceramic tubes for stability and reliability.

Refractory Lining
The furnace lining is composed of refractory bricks, insulating castable, and high-alumina castable materials, providing excellent insulation, minimal heat retention, rapid heating, and energy efficiency. The furnace shell is constructed from steel plates and structural steel, fixed to the transmission support frame, and secured to the integrated base for enhanced stability and durability.

FAQ

Q: How about your delivery time?

A: Shipped in 7~30 days after payment . Specific delivery time depends on the terms and the quantity of your order.

Q: Do you test all your goods before delivery?

A: Yes ,we have 100% test before delivery and we will send your photos.

Q: Can I ask for specical design?

A: Sure ,we have a poweful technical deparment for supporting it.

Q: Do you have technical support for the treatment technology and equipment ?

A: Yes. we could provide the customer with mature technical support.

Q: Why should I choose your products?

A: Our products are high quality and reasonable price

As one of the most professional rotary kiln furnace manufacturers in China, we're featured by quality products and good price. Please feel free to buy high-grade rotary kiln furnace for sale here from our factory.

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