FAILURE MODE AND EFFECTS ANALYSIS Work sheet item: steel making (unit of lime) Core team: Mehrzad Ebrahemzadih, G.H. Halvani, B. Shahmoradi

RPN

RE

D

RE

O

RE

S

RE

Recommended Action(s)

RPN

D

O

S

Potential Effect(s) of Failure

Potential Failure Mode

Process Function

50

5

5

2

The use of respiratory mask

175

5

5

7

Lung damages

Dust

Furnace operator

1

50

5

5

2

The use of ear plugs

140

5

4

7

Hearing damage

Noise

90

6

5

3

Creating safeguards

300

6

5

10

Death

The fall basket Netscape

Raw ore charging into the furnace

2

48

4

4

3

Creating safeguards + training

120

4

5

6

Fracture of lumbar

Rock fall

105

5

7

3

The use of respiratory mask

280

5

8

7

Lung damages

Dust

Lime discharge

3

50

5

5

2

The use of respiratory mask

180

6

5

6

Lung damages

Dust

Driving loaders

4

30

3

5

3

The use of ear plugs

168

4

6

7

Hearing damage

Noise