Pyro-Log thermal insulation fabric in standard and zirconium fibers

DESCRIPTION

Pyro Log is the only 152mm thick, high purity, needled blanket available in standard uncompressed densities up to 240 kg/m³. Vertically-fiberized Pyro-Log fibre is of exceptional uniformity of dimensions and of naturally low shot content. Pyro-Log offers a unique solution to the problems encountered in designing linings for use in the toughest of furnace environments.

 

TYPE

High density blanket slabs.

 

MAXIMUM CONTINUOUS USE TEMPERATURE

Pyro-Log Standard (R Grade) : 1260°C
Pyro-Log Zirconia (H Grade) : 1425°C

The maximum continuous use temperature depends on the application. 

 

APPLICATIONS

Pyro Log has a multitude of uses in heat containment applications in all industry groups, a selection of which are as follows:
 Ceramic Industry (kiln car insulation - furnace floors)
 Iron and Steel (walking beam furnace skid rail insulation)
 General (engineered shapes)
 Pyro-Log is the precursor material for the Pyro-Bloc range of mechanically fixed modules

 

FEATURES

 Resistant to devitirification at high temperature
 Pyro-Log is available in standard uncompressed densities up to 240kg/m3. Lubricant in the Log allows for extra compression during installation, ensuring good, tight joints
 Combination of high density and opacity of its fibres to infrared radiation maintains the low thermal conductivity of Pyro-Log to high temperature
 Pyro-Log has the unique characteristic that on firing it converts from a relatively soft, easily compressible slab to a tough, near monolithic structure with a board-like texture
 The hard surface obtained after firing gives exceptionally high resistance to abrasion by flowing gases. This resistance can be enhanced by spraying the hot-face surface with Cerapreg or Kaowool hardener (up to 40-45m/s) or by coating with Kaowool White Cement (up to 50-55m/s)
 The almost monolithic structure obtained after firing confers on Pyro-Log some load bearing capacity which can be utilised in lightly loaded hearths
 Pyro-Log is easily cut and shaped on site, or pre- shaped in the factory, to accommodate irregular sections or changes of profile, such as from oblong to round cross section in ducts
 The unique log structure allows us to produce L- shaped corner modules which ensures join-free linings around corners, both inside and outside
 Thermal shock resistance
 Good acoustic insulation

 

 

BASIC AND HEAT CHARACTERISTICS Pyro-Log

Main properties	Standard (R Grade)	Zirconia Fibre (H Grade)
Maximum continuous use temperature, °C	1260	1425
Properties Measured at Ambient Conditions (23°C/50% RH)
Colour	White	White
Density un-compressed, kg/m3	160 192 240	160 192 240
High Temperature Performance
Loss on ignition after 2 hours at 800°C, %	< 0.25	< 0.25
Permanent linear shrinkage after 24 hours isothermal heating at:
1000°C, %	1.6	0.6
1100°C, %	2.3	1.0
1200°C, %	3	1.6
1300°C, %	-	3.2
1400°C, %	-	3
Specific heat capacity at 1080°C, kJ/kg.K	1.13	1.13

 

	Blanket – Laid			Edge - Grain
	160	192	240	160	192	240
400°C, W/m.K	0.08	0.08	0.07	0.10	0.10	0.09
600°C, W/m.K	0.12	0.11	0.10	0.17	0.16	0.14
800°C, W/m.K	0.17	0.15	0.13	0.25	0.23	0.20
1000°C, W/m.K	0.22	0.19	0.17	0.34	0.32	0.28

 

If you need advice on the use or on the purchase of Pyro-Log refractory cloth in Ukraine, please contact Kitmas specialists.