HOME - PRODUCT - CALCINATION EQUIPMENT - text
Rotary kiln
We have totally produced more than 250 sets of rotary kilns including dry, semi-dry and wet ones used widely in cement, metallurgical, chemical industry, refractory, active lime, paper-making etc. Specifications are from Φ1.2 to Φ6.1m.
We're here to help:
Easy ways to get the answers you need.
Product Description


Application and operating principle

The rotary kiln is central equipment for cement clinkering system in the new large dry processing cement production, which can be used with unit-or-twin-stream preheater, calcining combustor. 90%-95% of the raw material which has been pre-calcined feeds into the slow rotating, inclining installed rotary kiln from the rear. Under the composite effect of circumferential tilting and axial movement, the material slowly flows through the whole drum, the fuel (coal dust, oil or natural gas) sprays from kiln head into high temperature zone for burning, which produces the required heat for physical and chemical reaction of combination and crystallization of material inside the kiln. Under the function of rear blower, the burning gas stream and material counter flow the whole kiln, completing heat exchange and physical/chemical reaction. The clinkered cement is discharge to the cooler.


Characteristics

The kiln body is made of high-quality killed carbon steel or alloy steel plate and welded;

The supporting type and rollers is of ZG35CrMo and 42CrMo steel;

The sliding bearing is of non-scraping liner one with large clearance;

The driving device adopts hard-toothed reducer, flexible sheet coupling, driven by DC motor;

Hydraulic thrust roll is used;

The kiln head and rear seal is of pneumatic or scaled type;

With slow speed drive.


Technical parameter for cement rotary kiln of dry processing

Model

Parameter

Main Motor

Trust Roller

Type

Supporting Type

Weight

(t)

Speed r/min

Inclination %

Capacity t/d

Power kW

Φ3.2×50

0.6743.37

3.5

1000

160

Hydraulic

Slide

252.4

Φ3.5×52.5

0.63.6

3.5

1500

180

366.5

Φ4×56

0.353.5

3.5

2000

250

489

Φ4×60

0.3963.96

3.5

2500

315

523

Φ4.3×64

0.43.96

3.5

3200

420

606.69

Φ4.8×72

0.393.96

3.5

5000

630

853.3

Φ4.8×74

0.354

4

5000

630

864

Φ5.2×61

0.383.79

3.5

5500

800

859

Φ5×80

max3.5

4

6000

800

Φ5.6×87

max4.23

4

8000

800

1201

Φ6×90

max3.5

4

10000

845 ×2

Φ6×95

max5

4

10000

950×2