Nozzle Ring Area of Raw Mill

Raw mill nozzle Ring Area Mtr Mtr Mtr Mtr Nos Mtr Mtr

Total nozzle ring Area Total Plate area Opening area Dummy area of each section Dummy area Net Opening Area

11.68 1.44 10.24 0.12 1.68 8.56

m2 m2 m2 m2 m2 m2

1279759.38

m3/ hr

Gas flow at mill inlet

Velocity (with dummy plates) Velocity (w/o dummy plates) Fan flow, m3/hr

29

30 32

28

27 26

25

31

24

23 22

33

21

34 35

3

36 37

18 17

38

16 15

39 40

14

41

41.53 m/sec 30.43 m/sec

13

42

12

43 11

1064513

44

10

45

9

46

8

47 48 DOOR

Flow Nm3/hr

flow 1064513 704118.34

20 19

1

5.6 6.8 0.6 0.05 48 0.4 0.3

2

Date : 30.01.2003 Dia 1 Dia 2 Plate length (Gap) Plate Thickness No. of plate Dummy plate (width) Dummy plate (length)

temp 100

Pressure 995

1

2

3

4

5

6

7

Fan inlet flow

1279759.38

230

140

Raw mill nozzle Ring Area

Total nozzle ring Area Total area (covered by plates thickness) Opening area Dummy area of each section Dummy area Net Opening Area

Velocity (with dummy plates) Velocity (w/o dummy plates) Fan flow, m3/hr

Mtr Mtr Mtr Mtr Nos Mtr Mtr

11.68

m2

1.44 10.24 0.12 1.92 8.32

m2 m2 m2 m2 m2

1155262

38.57 27.47

29

30 32

28

27 26

25

31

24

23 22

33

21

34 35

3

36 37

17 38

16 15

39 40

14

41

m3/ hr

m/sec m/sec

13

42

12

43 11

989522

44

10

45

9

46

8

47 48 DOOR

Flow

flow 989522

20 19 18

2

Gas flow at inlet

5.6 6.8 0.6 0.05 48 0.4 0.3

1

Date : 25.12.2003 Dia 1 Dia 2 Plate length (Gap) Plate Thickness No. of plate Dummy plate (width) Dummy plate (length)

temp 100

Pressure 995

1

2

3

4

5

6

7

Nm3/hr Fan inlet flow Dust load, gm/m3

654516 1155262 545.72

215

130