+ All Categories
Transcript
Page 1: Blast Furnace By Bhawesh Barve

GYAN GANGA COLLEGE OF TECHNOLOGY JABALPUR

IRON MANUFACTURINGBY

BHAWESH BARVEM.E- 4th SEM

0208ME141017

Page 2: Blast Furnace By Bhawesh Barve

What is iron?Iron is very reactive and is found in nature in form of

its oxides ,carbonates and sulphates.Symbole-Fe

atomic no.-26atomic mass-55.84

melting point –1538CBoiling point -2750C

state-solidcolour-silver gray

Page 3: Blast Furnace By Bhawesh Barve
Page 4: Blast Furnace By Bhawesh Barve

1) iron is not found free in nature.2)But is found in iron ores such as heamatite(fe2o3),megnatite(fe3o4).*The main iron ore is heamatite.

Types of Iron1) Pig Iron 2)Cast Iron3)Wrought Iron

Allotropes Of Iron1) Alpha Iron2) Beta Iron3)Gamma Iron

Source

Page 5: Blast Furnace By Bhawesh Barve
Page 6: Blast Furnace By Bhawesh Barve

Manufacturing Of Pig IronBy

Blast Furnance

Page 7: Blast Furnace By Bhawesh Barve

Charge Use in Blast Furnance

1) Iron Ore- Hematite (Fe2O3)Magnatite(Fe3O4)

2) Coke- Heating Agent /Reducing Agent 3) Lime Stone- As a Flux.

Page 8: Blast Furnace By Bhawesh Barve
Page 9: Blast Furnace By Bhawesh Barve

Reactions At Blast Furnance

1) Zone Of Fusion-It is the lower most zone.Temp.- 1300-1500C

C + O2------ CO2 + 400Kj

2)Zone of Absorption-Middle Zone.Temp.- 800-1000C

CO2 +C -------- 2CO +160 KjCaCo3------ Cao + CO2

Cao +Sio2-----CaSio3 (slag)3) Zone Of Reduction – Upper most Zone .

Temp- 400-700CFe2O3 + 3CO----2Fe + 3CO2

Page 10: Blast Furnace By Bhawesh Barve

Impurities Found In Iron Ore And There Effects

1) P-% vary from 0.1 to 2%It combined with Iron &form Fe3P it embrittles iron.

2) S -%vary from 0.4 to 1%It also makes Iron br ittle ,hard &produce unsound casting.

3) Mn-%vary from 0.5 to 1%it increases hardness.

4) Si - %vary from 1 to 4%it reduces the strength of iron and make it brittle.

5) C- 4to 4.5%1)

Page 11: Blast Furnace By Bhawesh Barve

The hoba meteroite

In Namibia is the largest naturally occuring piece of iron in the world.Weight -60tonsIron-82 – 83%Ni – 16- 17%

Co – 1%

Page 12: Blast Furnace By Bhawesh Barve

ANY QUERY

Page 13: Blast Furnace By Bhawesh Barve

Top Related