Ordinary Calcium Silicate Board
The main constituents of 1000C calcium silicate insulation board is Xonotlite and reinforced galss fibre,no asbestos . It is a kind of high efficient energy-saving material with temperature limited 1050 cent-degree.Characterized by low bulk density,high specific strength, superior heat resistance,outstanding thermal insulation,excellent durability, chemical corrosion resistance, easy to be cut by saw and easy installation, calcium silicate can be widely used for the insulation of industrial kiln.
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Calcium Silicate Board
Ordinary Calcium Silicate Board
1.PHYSICAL AND CHEMICAL MICROSTRUCTURE ,PRODUCTION,TECHNOLOGY
The main constituent Sonotlite is synthesized through dynamic hydrothermal process using quartz and lime as raw material.. The microstructure crystal looks like a hollow cactus ball and make the board has superior features,unique and irreplaceable.
A.Low thermal conductivity figures—provides top insulation thoughout its temperature range.
B.Good thermal stability—withstand continuous heat up to its full temperature use limit with small linear shrinkage.
C.Light bulk density—low heat storage
D.High mechanical strength— specific strength superior other shaped insulations and retains full integrity at elevated temperatures(excellent creep –resistance).
E.Long service life—no pulverization such like ceramic fibre felt.
F.Safe and clean operation—Free from asbestos,suiphur,and chloride, no toxic carcinogen.
2.APPLICATIONS AND INSTALLATION
Calcium silicate insulation boards are used on all kinds of industrial branches to provide high quality insulating backing.
In kiln system,the insulation board is not exposed to the fire,so the requirement to the insulation material is different from refractory material. Very high use temperature, very high thermal shock resistance and very high mechanical strength are the requirement to refractory material which touch the fire directly.But these item are not important to insulation material. The necessary technical properties for insulation material as following:
A.Low thermal conductivity
B.Low bulk density
C.Gas resistance(CO, NH3,H2 and CH4)
D.Easy cut and installation
Calcium silicate can meet all above requirement and replace other insulation material , it is becoming dominant on insulation of industrial kiln.
Areas of application
A.Cement industry: preheaters and cyclone separators, decomposition kiln,tertiary air duct and cooler
B.Nonferrous metallurygical industry: aluminum power calciner and electrolysis groove
C.Petrochemical industry: Splitting furnace,catalytic cracking furnace,petroleum pipeline,underground heat-flooding
D.Metallurgical industry(steel plant): hot-rolling heat furnace,cool-rolling mill set,RH vacuum degassing furnace , smelters,hot deformation and heat treatment plants
E.Power plant:preheat stove ,pipe
F.Glass industry:melting furnace and recuperator,annealing furnace and cooling channels
G.Ceramic industry: chamber and tunnel furnace
1000℃ CALCIUM SILICATE BOARD
Physical performance Items |
Unit |
LG Standard |
国家标准 GB/T10699-2015 |
|
HCS-23 |
HCS-25 |
|||
Bulk Density |
Kg/m3 |
230 (±10%) |
250 (±10%) |
≤220,≤270 |
Flexural Strength |
Mpa |
≥0.50 |
≥0.55 |
≥0.30 |
Thermal Conductive |
W/m.k |
≤0.056 +0.00011tt |
≤0.058 +0.00011tt |
≤0.060 (100℃) |
Temp Limit |
℃ |
1000 |
1000 |
1000 |
Linear Shrinkage |
% |
≤2 (1000℃,16hrs) |
≤2 (1000℃,16hrs) |
≤2 (1000℃,16hrs) |
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