Dry Rotary Kiln
Dry Rotary Kiln

Dry Rotary Kiln

Description: Rotary kiln body is rolled by steel plate, with refractory lining inside and shows a certain degree to the horizontal level. Each block support device is supported by three wheel belts. Fix a gear ring in the inner cylinder around feeding wheel belt with cutting spring plate. There is a meshing pinion under it. When operating normally, transmit power to open gear device from main drive motor to main reducer to drive rotary kiln.

DRY ROTARY KILN

Structure

Rotary kiln body is rolled by steel plate, with refractory lining inside and shows a certain degree to the horizontal level. Each block support device is supported by three wheel belts. Fix a gear ring in the inner cylinder around feeding wheel belt with cutting spring plate. There is a meshing pinion under it. When operating normally, transmit power to open gear device from main drive motor to main reducer to drive rotary kiln.

Working principle

Material is calcinated in the kiln from kiln end (cylinder upper side). Because cylinder tilts and rotates slowly, material both rolls in the circumferential direction and moves in the axial direction (from high to low end). It continues to complete industry process of decomposition and calcinations through physical and chemical changes. Finally, clinker comes to cooler to cool from kiln head cover.

Fuel is injected in to the kiln from kiln head. The combustion exhaust gas is derived from the kiln after heat exchanging with material.

Composition

  1. Cylinder and kiln lining
  2. Wheel belt
  3. Support device
  4. Drive device
  5. Kiln head cover
  6. Burner
  7. Smoke chamber
  8. Heat exchange device
  9. Feeding equipment

Routine inspection

  1. drive device inspection
  2. wheel belt and support device inspection
  3. kiln cylinder inspection
  4. sealing device inspection

Technical

Specification(m)

Φ2.8/2.5 * 44

Φ3 * 48

Φ3.2 * 50

Φ3.3 * 50

Φ3.5 * 54

Φ4 * 60

Capacity(ton/day)

300

600-700

1000

1200

1500-1800

2500

Slope of the kiln shell(%)

3.5

3.5

3.5

4

4

4

No. of supports

3

3

3

3

3

3

Type of thrust roller

Mechanical

Mechanical &Hydraulic

Hydraulic

Hydraulic

Hydraulic

Hydraulic

Rotating Speed of Kiln

Main driving(r/min)

0.445-2.22

0.676-3.38

0.36-3.57

0.36-3.57

0.39-3.9

0.41-4.07

Auxiliary driving (r/min)

4.75

9.36

6.5

5.61

7.66

8.2

Main dring

Reducer

Model

ZSN4-225-21

Z2-101

ZSN4-280-091B

ZSN4-280-091B

ZSN4-315-092

ZSN4-355-092

Rated power(kw)

55

100

160

160

220

315

Speed regulation range (r/min)

~1000

~1500

1500

1500

1000

1000

Rated voltage (V)

440

220

440

440

440

440

Reducer

Model

ZS145-1-1

ZS145-1-1

ZSY-450-40-V

ZSY450-40

NZS995-28VIBL

YNS1110-22.4VBR

Total ratio

49-63

50

40

40

28

22.4

Auxiliary driving

Electrical Motor

Model

Y122M-4

Y160M-6

Y160M-4B

Y160M-4

Y200L1-6

Y180L-4

Rated power (kw)

4

7.5

15

11

18.5

22

Speed regulation range(r/min)

1440

970

1460

1460

970

1470

Rated voltage (V)

380

380

380

380

380

380

Reducer

Model

ZL35-16

ZL35-7-I

ZSY160-31.5-II

ZSY355-31.5

ZSY355

YNS440-45 II R

Total ratio

40.44

14

31.5

31.5

45

45

(ton)Total weight (excluding refractory brick)

177

207

256.5

281

341

434

(ton)Weight of discharging kiln hood

20

22

25

27

28

35

Specification (m)

Φ4.3 * 64

Φ4.8 * 74

Φ5.0 * 74

Φ5.6 * 87

Φ6.0 * 95

Capacity (ton/day)

3500

5000

6000

8000

10000

Slope of the kiln shell (%)

4

4

4

4

4

No. of supports

3

3

3

3

3

Type of thrust roller

Hydraulic

Hydraulic

Hydraulic

Hydraulic

Hydraulic

Rotating Speed of Kiln

Main driving (r/min)

0.4-4.0

0.35-4

0.35-4

Max 4.23

Max 5

Auxiliary driving (r/min)

7.93

8.52

7.58

8.7

9.2

Main dring

Reducer

Model

ZSN4-355-12

ZSN4-400-092

ZSN4-450-092

ZSN4-450-12

ZNS4-500-092

Rated power (kw)

400

630

710

800

950 * 2

Speed regulation range (r/min)

100~1000

1500

87.5~1000

100~1000

100~1000

Rated voltage (V)

440

660

660

660

660

Reducer

Model

YNS1400-31.5VIBL

JH710C-SW305-40

JH800C-28

JH900C-SW305-25

JS900C-SW305-28

Total ratio

31.5

42.226

26.812

23.901

26.646

Auxiliary driving

Electrical Motor

Model

Y200L-4

Y250M-4

Y250M-4

Y280M-4

Y315M1-4

Rated power (kw)

30

55

55

90

132

Speed regulation range (r/min)

1470

1480

1480

1480

1490

Rated voltage (V)

380

380

380

380

380

Reducer

Model

YNS497-45ZC

JH220C-SW302-28

JS280C-45

ZSY400-35.5-I

ZSY450-35.5-I

Total ratio

45

28

45

35.795

35.795

(ton)Total weight (excluding refractory brick)

550.5

854

894

1201

1580

(ton)Weight of discharging kiln hood

36

45

48