Pyro-Bloc Thermal Insulation Modular Blocks Based on Standard and Zirconium Fiber

 

Product Description

Pyro Bloc modules comprise two sections of Pyrolog slab in edge-grain orientation. These are held in position with two stainless steel tubes mounted transversely through the modules and remote from the hot face. They are anchored to the furnace casing with the patented Pyro Bloc fixing in any one of four standard versions, Y, M, T and Eye-bolt.

In the Y module, the tubes are connected with a central, internal yoke which includes a stainless steel stud and Aluminium extension tube. This version is installed directly onto a metal plate casing, without pre-welding, using the special Pyro Bloc stud gun. It offers the fastest installation rates of any currently available modules.

The M module also includes the central yoke, but is fitted onto pre-welded studs using the special M module stud-locating equipment.

The T module is anchored with a pre-studded, external, sidefix yoke.

M and T modules are used where the lining specification calls for either or both a backing blanket and anti-corrosion treatment of the casing.

The Eye-bolt version is used for fastening the modules to expanded or perforated metal casings and can also accommodate a backing blanket.

 

Type

Mechanically-fixed modules.

 

Classification Temperature

Pyro Blocs are available in 3 density grades in each of two temperature classifications
• Standard Fibre: 1260°C
• Zirconia Fibre: 1425°C

The maximum continuous use temperature depends on the application. In case of doubt, refer to your local Morgan Thermal Ceramics distributor for advice.

 

Features

• High un-compressed densities give low thermal conductivity
• Lubricated fibre allows increased compression and tight joints
• Hardening effect on first firing gives a tough hot face, resistant to mechanical damage and gas flow abrasion
• Resistance to weathering permits limited outside application
• Anchorage remote from the hot face protects steel work

 

Special Shapes

The Pyro-Bloc system allows for modifications, either on site or factory pre-cut, without any directional limitation, to accommodate awkward casing configurations. L-shaped corner modules provide quick seam-free installation around both internal and external corners, with no need for extra supporting metal work. Half-round cut-away allows fitting to round sections.

 

Y Modules

• Fast installation
• All welds automatically torque tested • One step installation

 

M and T Modules

• Allow use of backing insulation and casing treatment
• Module compression guaranteed
• Simple fixing components
• Use standard, commercially available welding equipment Eye-bolt Modules
• Permits fixing of module to expanded or perforated metal casings.

 

Applications

Pyro Blocs have a multitude of uses in heat containment applications in all industry groups, a selection of which are as follows:

• Petrochemical (process heaters, reformers, pyrolysis heaters and ductwork)
• Iron and Steel (transfer ladle lids, soaking pit covers, reheating furnace, multi and single stack coil annealing furnaces, continuous annealing and coating furnaces, rotary hearth furnaces, car bottom furnaces, roller furnaces, lift-off furnaces, offtakes and ductwork)
• Aluminium (soaking pits and covers, bale out furnaces, homogenising furnaces, ductwork)
• Ceramic (tunnel kilns for whiteware and red brick, intermittent kilns for whiteware and red brick, Hoffman kilns and ductwork)
• Utilities (thermal oxidisers, waste heat recovery units, combustion chambers and boiler ductwork)

 

BASIC AND THERMAL MODULES CHARACTERISTICS

Main Properties

 

 

Standard Fibre

Zirconia Fibre

Classification Temperature (°C)

1260

1425

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 (%)

Меньше 0.25

Меньше 0.25

Permanent linear shrinkage after 24 hours isothermal heating at:

1200°C (%)

3

1.6

1400°C (%)

-

3.0

Specific heat capacity at 1000°C (kJ/kg.L)

1.13

1.13

 

Thermal Conductivity (ASTM C201-68), W/mK

 

160 kg/m3

192 kg/m3

240 kg/m3

400°C

0.11

0.10

0.09

600°C

0.18

0.16

0.14

800°C

0.25

0.23

0.20

1000°C

0.34

0.31

0.28

 

If you need advice on the application or on the purchase of Pyro-Bloc refractory modular units in Ukraine, please contact Kitmas specialists.