APPLICATIONS

INDUSTRY
(FACILITY)

SERVICE

PARAMETER

RANGE

BACKGROUND

TELEDYNE MODEL

Please review air separation applications for air sep plants located on-site of a steel manufacturing facility.

Blast furnace

Pig Iron Production

Upper portion of furnace / stack
(Hot reducing atmosphere)
aka - "Top Gas"

Percent CO & CO2

0-40%

N2, H2, O2, H2Ov

7500Z (Dual bench)

Percent H2

0-20%

N2, CO / CO2, H2Ov

2000A

Percent O2

0-2, 0-5%

Series 3000P

Basic oxygen furnace - BOF
Top Blown Furnace

Oxidation of carbon in molten Pig Iron via addition of high purity O2 + steel making flux
Analysis point = duct above hood

Percent CO & CO2

0-40%

N2, H2, O2, H2Ov

7500Z (Dual bench)

Percent H2

0-10%

2000A

Percent O2

0-5%

Series 3000PB

Soaking pits

Combustion efficiency

Percent O2, CO, combustibles

See Max 5 and 9000 series data sheets

Flue gas

Max 5 / Series 9000

Reheat furnace

Steam boilers

Galvinizing furnace

Coke oven
for Benzene emissions control

Coke plant storage tanks & coke oven gas before electrostatic precipitator

Percent O2

(for Benzene emissions control)

0-2, 0-10%

Coke oven gas

3020P

Coke oven flues

Percent O2 and combustibles

0-5% O2, Percent LEL

Coke oven flues

Max 5 / 9700

Heat treating / annealing furnace

Hydrogen / N2 blanketing for colored oxide prevention

PPM O2

0-10 ppm or less

H2 / N2

Series 3000T / 311 for spot checking

Percent H2

0-5, 10, 20% H2

N2

Series 2000

Hot strip mill

High temp furnace (1400C)
O2 detection to prevent brittlement of steel slabs

Percent O2

0-5. 0-10%

N2, H2Ov, CO2

9060Z extractive high temp probe and sample chamber with eductor

Dust collection system / baghouses - airleak detection

Percent O2 and/or CO

0-5% O2

Air + dust from BOF, coke oven

Series 9000

0-2000 ppm CO

7500Z NDIR

Continuous caster

On the caster or tundish

Prevent slag oxidation of steel

PPM O2

0-10, 0-100 ppm

N2 / Ar blanketing

3000TA / 311

Direct reduced iron

Multiple locations in plant

O2 / H2 / CO / CO2

PPM and Percent levels

Process / Flue gas

3000 / 2000 / 7500Z