Rotary Kiln

The rotary kiln is widely used in the fields of building materials, metallurgy, chemical industry, environmental protection, etc. It can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to the different materials processed.

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  • Supporting Device: it adopts advanced main shaft structure, automatic temperature measuring device and electrical heating device. And it has optional flow support.
  • Thrust roller: It has mechanical type and hydraulic type. The hydraulic thrust roller is equipped with advanced hydraulic controlling system.
  • Drive device: It has single drive or double drive. The adjustable-speed motor, DC motor or frequency variable motor control kiln rotation speed. And has features of reliable running and high efficiency.
  • Tyre shim: The shim under tyre has fixed type and adjustable type. The adjustable shim has features of simple structure, easy replacement and maintenance without any damage to shell.
  • Sealing device: Various types of sealing device are available for different kiln, such as cylinder tighten sealing, spring tighten sealing, graphite block sealing, spring graphite, fish scale type seal etc, which has good sealing effect.
  • Kiln head hood: It has fixed type and flexible type.

Introduce of rotary kiln:

CHAENG (great wall machinery corporation) can produce rotary kiln with diameter Φ1-Φ5m,The rotary kiln can be divided into cement kiln, metallurgy chemical kiln and lime kiln according to the different materials processed.The kiln supporting has rolling and sliding type and the drive can use DC or AC variable frequency control. It has various seal types for different working condition . CHAENG can also design and customize non-standard rotary kiln according to customer’s special requirements.

The cement kiln is mainly used to calcine cement clinker; In the process of non-ferrous and ferrous metallurgy, such as iron, aluminium, copper, zinc, stannum, nickel, wolfram, chromium, etc., the rotary kiln can be used to sinter and roast ore, concentrate, intermedium, etc.; The lime kiln is mainly used to calcine limestones.

Rotary kiln is composed of shell, drive device, support and thrust roller, kiln lining, kiln inlet sealing, head hood and burning device etc.The rotary kiln firing system is equipment with technological innovation.Shell is the heated rotation part, which is welded by high quality carbon steel plate. It is mounted on supporting device through tyre. Mechanical or hydraulic thrust roller is equipped on supporting device. So it will control shell slide in axial direction. Driving device makes shell rotate through gear according to required revolving rate. Big size kiln has auxiliary drive to make shell rotate at low speed for kiln installation and maintenance request. In order to prevent cooling air into kiln and dust come out kiln, there is sealing device at kiln inlet and output end.

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This system adopts the world advanced technology,such as the most advanced hydraulic block wheel device, a high measurement accuracy of measurement piston pump, high-precision control valve and contact-type graphite block sealing device.


Working principle

Material will be feed into kiln tail through chute in gas chamber. As kiln shell is inclined and it rotates slightly, material will move along round shell and will also move along shaft direction from kiln tail to kiln head. Material will be processed through pre-heat, decompose, calcined and will be feed into cooler. Fuel will be given through gas or coal burner at kiln head and will be combusted in kiln. Heat will be transferred to material by fire radiate, hot air flow, kiln brick transfer. The heat will heat and calcine material enough and make it final product.

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Specifications

 

Model Output (t/d) Main Drive (r/min) Motor (kW) Regulating Range (r/min) Gearbox Velocity Ratio Weight (t)
Φ2.2×50 96 0.125-1.25 30 132-1320 157 130.71
Φ2.5×50 130 0.516-1.549 55 440-1320 99.96 167.5
Φ3×48 850 0.3309-3.309 90 100-1000 32.11 237
Φ3.2×48 1000 0.375-3.75 160 100-1000 27.469 252
Φ3.2×50 1200 0.398-3.975 190 150-1500 40.85 263
Φ3.3×52 1200 0.391-3.91 190 100-1000 27.707 280.8
Φ4×60 2500 0.396-3.96 315 100-1000 34.601 487.5
Φ4.2×60 2800 0.4165-4.165 420 100-1000 35.526 576.1
Φ4.3×62 3000 0.398-3.98 420 100-1000 35.714 598.5
Φ4.3×64 3200 0.449~4.49 450 100~1000 24.365 585
Φ4.5×66 4000 0.41~4.1 630 100~1000 34.069 710.4
Φ4.8×70 5000~5500 0.4~4.0 630 100-1000 30.876 845.3
Φ4.8×72 5000 0.403~4.03 560 100~1000 30.365 847
Φ4.8×74 5000 0.35~4 630 130~1500 42.226 841

The rotary kiln is widely used in the fields of building materials, metallurgy, chemical industry, environmental protection, etc.

Pre-sales Service:
The wide product range enables us to provide our customers with stand-alone machines or complete processing plants. Based on our customers’ request and budget, our experts make efficient, reliable solutions. Following customers’ order we produce strictly, what’s more, before placing the order every customer has the chance to visit XinXiang Great Wall (Chaeng) working machines or complete plant in the site.

To ease the trip for every visitor to China, in particular the first-time visitor, we provide FOR FREE all relevant visitor-friendly services including invitation letter preparation, hotel reservation, airport pick-up, incity transportation, and sightseeing guide, etc.

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After-sales Service:
Experienced technicians guidance is available on the phone, and on the internet. One or more engineers will be dispatched to the quarry site to help install the customers’ plants. Necessary training about machine daily maintenance to local workers is provided also.

After-Sales department is made of well-trained employees and installation engineers, the installation engineers are special and professional members of XinXiang Great Wall (Chaeng), they are now strategically located home and abroad, working for our customers.

 

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