Blast Furnace Thermocouple

S Type Thermocouple

Parameter	Specification
Make	Aavad
Model	ASFS
Element	Pt. Rh (10%)/Pt
Element diameter	0.5 mm
Calibration std.	As per ANSI mc 96.1
Configuration	Simplex
Insulation	Twin hole ceramic Ker-710
Hot junction	Un-grounded
Terminal block	Ceramic with nickel-plated
Head	Die-cast aluminum flame-proof ANSI
color-coded 'Blue' painted with threaded	cover and chain
Protection class	IP-67
Cable entry	1/2" (F) NPT
Holding tube moc	Inconel -600 tube
Holding tube diameter	30 mm
Holding tube length	250 mm
Outer ceramic diameter	24 X 18 mm. Id of ceramic Ker-710 (K-99, Alumina 99.7%) X 600 mm long
Inner ceramic diameter	15 X 10 mm Id of ceramic Ker-710 (K-99, Alumina 99.7%) X 600 mm long
Ceramic insulator	2 Hole 5.5
Exposed tube sheath length	1500 mm
Joints	Between holding tube & outer &
inner tube assembly by high temp. Alumina	compound bonding.
Process connection	2 "300#RF Fix welded Flange
Length below flange	1600 mm
Total length below head	1750 mm
Range	Up To 1500°C

Description

The temperature measurement of blast furnace (BF) molten iron is a mandatory requirement in the ironmaking process, and the molten iron temperature is significant in estimating the molten iron quality and control blast furnace condition. However, it is not easy to realize real-time measurement of molten iron temperature because of the harsh environment in the blast furnace casthouse and the high-temperature characteristics of molten iron.