Insulating Castable Refractories

Insulating Castable Refractories

Short Description:

Insulation refractory castable have light bulk density, low thermal conductivity, high strength, uniform air tightness, and are resistant to acids and alkalis. It is suitable for the furnace body, furnace wall and furnace roof of medium and low temperature thermal equipment. After being cast on site, the insulation layer becomes a whole and the insulation performance is enhanced. It is used on various power station boilers and industrial kilns. Excellent heat insulation and energy saving effect.


Product Detail

Productive Process

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Description

Insulation refractory castable have light bulk density, low thermal conductivity, high strength, uniform air tightness, and are resistant to acids and alkalis. It is suitable for the furnace body, furnace wall and furnace roof of medium and low temperature thermal equipment. After being cast on site, the insulation layer becomes a whole and the insulation performance is enhanced. It is used on various power station boilers and industrial kilns. Excellent heat insulation and energy saving effect.

Features

Low bulk density / Low thermal conductivity / Good insulation performance

Strong overall performance / Good thermal shock resistance / long lasting / Simple construction

Application

Insulation refractory castable is widely used in the insulation parts of industrial kilns and thermal equipment in metallurgy, machinery, electric power, petroleum, chemical and other industries.

Insulation refractory castable is suitable for the refractory and heat-insulating lining of petrochemical tube furnaces, as well as the refractory and heat-insulating lining of various heating furnace bottoms, furnace walls, flue chimneys, radiation chambers, convection chambers, elbow boxes, and cracking of ethylene crackers Furnace lining. At the same time, it can also be applied to the insulation layer of other high-temperature furnaces.

Physical And Chemical Indicators

Brand
   Properties

LWC-170

LWC-160

LWC-150

LWC-140

LWC-130

LWC-120

Application Limit Temp ℃

1,700

1,600

1,500

1,400

1,200

1,100

Bulk Density (g/cm3)

1.45

1.5

1.55

1.45

1.25

1.15

Water Required for Casting (%)

18-23

20-25

21-25

28-35

40-45

45-50

CCS/MOR(MPa)

at110℃x24h

15(4)

10(3.0)

12(3.5)

11(3.3)

8(3)

8(2.5)

at1,200℃x3h

14(4)

10(3.0)

11(3.5)

5(2.5)

4(2)

4(2)
at1,000℃

at1,400℃x3h

15(5)

14(8.1)

22(10.8)

15(3)

-

-

Permanent Linear Change (%)

at110℃x24h

-0.08

-0.06

-0.12

-0.06

-0.09

-0.09

at1,200℃x3h

-0.1

-0.1

-0.18

-0.4

-0.8

-0.65
at1,000℃

at1,400℃x3h

0.1

-0.5

0.1

-1.0

-

-

Thermal conductivity(W/m.k)

at400℃

0.6

0.5

0.52

0.32

0.18

0.16

at1,000℃

0.8

0.6

0.64

0.41

0.24

0.21

Chemical Analysis(%) 

Al2O3

90

75

60

43

35

33

SiO2

-

15

30

40

47

49


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  • 1.Raw material quality control including physical and chemical testing.

    2.crushing and grinding of bulk raw materials.

    3.Packing after quality testing.

    Packaging  according to safety sea-exporting packing Standard

    Dispatch : loading the finished packing material at factory by container Door toDoor

    By 25kg kraft paper bags+sea fumigated wooden pallets

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